State California Regulations TITLE 23. WATERS DIVISION 4. REGIONAL WATER QUALITY CONTROL BOARDS database is current through 09/29/06, Register 2006, No. 39 s 3900. Water Quality Control Plan. On December 9, 1993, the North Coast Regional Water Quality Control Board adopted Resolution No. 93-89 amending the Water Quality Control Plan for the North Coast Region (hereinafter Basin Plan) to update descriptions and correct inaccuracies (hereinafter Amendment). The State Water Resources Control Board approved the Amendment by adopting State Board Resolution No. 94-29 on March 21, 1994. The Amendment does not include any new regulations. The purpose of the Amendment is to revise the Basin Plan to update descriptions of the Region and regulatory programs, incorporate changes in water quality regulations which have occurred since the 1988 revision of the Basin Plan, and correct inaccuracies that existed in the text of the 1988 Basin Plan. The amendment consists of primarily factual (informational) and editorial changes. The amendment incorporates into the Basin Plan water quality regulations which have gone through the public review process separately and prior to the subject amendment (such as water quality objectives obtained from Title 22 drinking water standards). s 3901. Water Quality Control Plan for the North Coast Region. Section IV, Implementation Plans, Point Source Measures, Waste Discharge Prohibitions for the North Coastal Basin. The Amendment: 1) clarifies that the discharge of waste to the Mad, Eel, and Russian rivers and their tributaries is prohibited during the period of May 15 through September 30; 2) clarifies that the discharge of waste to the Mad, Eel, and Russian rivers and their tributaries is limited to one percent of the receiving stream's flow during October 1 through May 14, and; 3) adds a procedure for dischargers to follow in applying for an exception to the one percent dilution requirement for the Mad, Eel, and Russian rivers. s 3902. Regulatory Summary of Resolution No. 95-53 Amending Point Source Measures in Section 4 of the Water Quality Control Plan for the North Coast Region to Include an Action Plan for Storm Water Discharges. On June 22, 1995, the California Water Quality Control Board, North Coast Region, (Regional Water Board), adopted Resolution No. 95-53, Amending Point Source Measures in Section 4 of the Water Quality Control Plan for the North Coast Region (Basin Plan). The amendment provides an Action Plan which will allow exception to the existing prohibition of point source waste discharges to waterbodies within the North Coast Region. The Action Plan requires the Regional Water Board to implement Section 402(p) of the Clean Water Act, and sets forth conditions for the implementation of Section 402(p). The conditions require the discharger to describe the storm water discharge in a Notice of Intent or application for NPDES permit and/or to manage the discharge and the activities which affect the discharge in conformance with the provisions of an applicable NPDES permit. Resolution No. 95-53 does not contain any new regulatory language, but rather includes statewide and federal practices for regulating storm water discharges into the Basin Plan. s 3903. Policy on the Control of Water Quality with Respect to On-Site Waste Treatment and Disposal Practices. The Water Quality Control Plan for the North Coast Region (Basin Plan) was amended on May 23, 1996 (NCRWQCB Resolution 96-16) as follows: the Policy on the Control of Water Quality with Respect to On-Site Waste Treatment and Disposal Practices (Individual Septic Systems Policy) was updated to provide a clear policy regarding new technologies and the assessment of cumulative impacts of individual systems on water quality. The amendment contains new site suitability criteria and evaluation methods, and designs criteria and technical guidelines for individual systems. s 3904. Garcia River TMDL for Sediment. Regional Water Board Resolution No. 98-66, adopted by the North Coast Regional Water Quality Control Board on May 28, 1998 and subsequently revised on December 10, 1998, modified the regulatory provisions in Section 4, Implementation Plans, Nonpoint Source Measures of the Water Quality Control Plan for the North Coast Region by establishing a phased total maximum daily load (TMDL), an implementation plan, and a monitoring plan for sediment in the Garcia River watershed in southwestern Mendocino County. This resolution was revised and readopted by the North Coast Regional Water Board as Resolution No. R1-2001-72 on June 28, 2001, which modified the Garcia River Water Quality Attainment Action Plan for Sediment which includes the TMDL, Implementation Plan, and Monitoring Plan. (a) The TMDL establishes the goal of attaining specified targets by the year 2049 for migration barriers, embeddedness, fines, primary pool frequency, proportion of fine sediment in a pool, median particle sizes, large woody debris, width-to-depth ratio, thalweg profile, and stream channel opening. (b) The TMDL identifies the loading capacity of the Garcia River watershed as 552 tons/sq.mi./year, a 60 percent reduction of the average annual sediment load, and allocates the load to all dischargers as "zero controllable discharges." The loading capacity will be measured over 40 years. (c) The implementation plan requires landowners to identify and control all existing and future controllable discharges of sediment in accordance with specified schedules using one of three options: (1) comply with waste discharge prohibitions that prohibit the controllable discharge of any organic or earthen material into the waters of the Garcia River or to any location where it could pass into the waters of the Garcia River; or (2) comply with an approved erosion control plan and an approved site-specific management plan; or (3) comply with an approved erosion control plan and the Garcia River Management Plan. The amendment specifies that it will not impose administrative civil liabilities for violations of the prohibitions if the discharging landowner is implementing an approved erosion control plan and management plan, but will consider the need to revise the plans or to issue a cleanup and abatement order. (d) The implementation plan specifies the purpose of an erosion control plan and requires that it contain a baseline data inventory, a sediment reduction schedule, an assessment of unstable areas, and a monitoring plan which includes an annual report. (e) The implementation plan specifies the purpose of the management plans and provides for time extensions. It specifies how a site-specific management plan must describe land management measures to control sediment delivery and describe land management measures to improve the condition of the riparian management zone. It also sets out the Garcia River Management Plan, which specifies land management measures that apply to the following: roads, watercourse crossings, and near stream facilities; unstable areas; the riparian management zone; and, gravel mining. (f) The implementation plan specifies conditions under which other planning efforts such as a Timber Harvest Plan or a Ranch Plan will be approvable as an erosion control plan and management plan. (g) The implementation plan provides that certain individual land management projects that are subject to Regional Water Board review are subject to the TMDL, the implementation plan, and the monitoring plan. It also requires notification of the Regional Board by a landowner conducting a restoration project, and allows substitution of restoration in lieu of action to control a sediment delivery site. (h) The implementation Plan provides for the adoption of group erosion control plans; whereas landowners with similar land-use activities can develop collective watershed based erosion control plans without having to show internal property boundaries. (i) The implementation plan establishes a procedure for its initiation, and an implementation schedule which specifies interim and final compliance dates ranging from 3 to 23 years for specified activities. (j) The monitoring plan specifies instream and hillslope monitoring parameters, monitoring protocols, and frequency of monitoring, provides that instream and hillslope monitoring by landowners (except for sediment delivery site monitoring) is voluntary, and requires an annual report describing erosion control-related activities and sediment delivery reduction results. (k) The amendment provides that the Regional Board shall review sufficiency of progress at least once every 3 years. s 3905. Concise Summary of Regulatory Provisions. Regional Board Resolution No. R1 2003-0052, adopted on June 26, 2003 by the North Coast Regional Water Quality Control Board, modifies the Beneficial Uses Chapter (Chapter 2) of the North Coast Regional Water Quality Control Plan(Basin Plan) by (1) updating the Beneficial Use Table 2-1 to include the Calwater classification system and a more refined level of beneficial use designation; (2) recognizing four existing beneficial uses of waters in the region (WET, WQE, FLD, and CUL); (3) recognizing two existing water body categories in the region (groundwater and wetlands); (4) modifying the existing beneficial use definition (COMM) for clarity; and (5) a beneficial use recognizing the existing "Subsistence Fishing" (FISH) use in the region. This update meets the requirements of the Federal Clean Water Act (CWA), which requires that States designate beneficial uses for surface waters at a minimum, for the protection and propagation of fish, shellfish and wildlife, recreation in and on the water, use of water for public water supplies, and agricultural, industrial, and navigational purposes (CWA s 101 and s 303). Beneficial uses must be designated and periodically updated for all waters of the State. Flexibility inherent in the State process allows for the refinement and clarification of specific uses, which has been realized with this Basin Plan update. The amendment also brings the beneficial use designations up to date, to reflect the current state of knowledge of the existing and potential uses of the waters in the region, and makes the general previous designations more specific. s 3906. Compliance Schedule Policy. On March 24, 2004, the North Coast Regional Water Quality Control Board (North Coast Water Board) adopted Resolution No. R1-2004-0011, thereby amending Chapters 3 and 4 of the Water Quality Control Plan for the North Coast Region (Basin Plan). The amendment authorizes the inclusion of compliance schedules in National Pollutant Discharge Elimination System (NPDES) permits under the following circumstances: 1. Where the NPDES limitations are implementing water quality objectives, criteria, or prohibitions that are adopted, revised, or newly interpreted after the effective date of this amendment. Compliance schedules shall not exceed ten years after adoption, revision, or reinterpretation of the objectives, criteria, or prohibitions; 2. Where a discharger, currently operating under a non-NPDES permit, under new interpretation of the law is required to comply with NPDES permitting limitations that implements water quality objectives, criteria, or prohibitions that are adopted, revised, or newly interpreted after July 1, 1977 and that are not included in the permit. Compliance schedules shall not exceed ten years after the effective date of the initial NPDES permit; and 3. Where a discharger is required to comply with a Total Maximum Daily Load (TMDL) adopted as a single permitting action that implements water quality objectives, criteria, or prohibitions that are adopted, revised, or newly interpreted after the effective date of this amendment. Compliance may extend beyond ten years from the date of permit issuance. Schedules of compliance shall contain interim limits and shall in all cases be as short as feasible. An existing discharger must submit a written request and prove to the North Coast Water Board's satisfaction that it is infeasible to immediately comply with NPDES effluent or receiving water limitations. A discharger must further provide: (1) results of diligent efforts to quantify pollutant levels in the discharge and the sources of the pollutant in the waste stream; (2) documentation of source control efforts currently underway or completed; (3) a proposed schedule for additional source control measures or waste treatment; (4) the highest discharge quality that is feasible to achieve until final compliance is attained; (5) a demonstration that the proposed schedule of compliance is as short as feasible; (6) data demonstrating current treatment facility performance; and (7) additional information and analyses, to be determined by the North Coast Water Board on a case-by-case basis. s 3907. Total Maximum Daily Loads for Sediment and Water Temperature in the Scott River Watershed. The Total Maximum Daily Loads (TMDL) for Sediment and Water Temperature in the Scott River Watershed specify potential shade targets for water temperature and load allocations for sediment, which must be fully attained 40 years after the effective date of the TMDLs. The implementation actions are designed to encourage and build upon ongoing, proactive restoration and enhancement efforts and to comply with the State's Policy for the Implementation and Enforcement of the Nonpoint Source Pollution Control Program. Should any of the implementation actions fail to be implemented by the responsible party or should the implementation actions prove to be inadequate, the North Coast Regional Water Quality Control Board (North Coast Water Board) shall take appropriate permitting and/or enforcement actions. Monitoring (e.g., implementation monitoring, upslope effectiveness monitoring, instream effectiveness monitoring, and compliance and trend monitoring) may be required of identified responsible parties in conjunction with existing and/or proposed human activities that will likely result in sediment waste discharges or elevated water temperatures. Additionally, North Coast Water Board staff shall develop a compliance and trend monitoring plan within one year of the date the Scott River TMDL Action Plan takes effect. The North Coast Water Board will conduct an extensive and focused reassessment after the Scott River TMDL Action Plan has been in effect for ten years, or sooner if the North Coast Water Board determines it necessary. North Coast Water Board staff will report to the North Coast Water Board at least yearly on the status and progress of implementation actions. For actions that rely on encouragement of existing efforts that address water quality impairments, the North Coast Water Board will conduct a formal assessment of the proven or expected effectiveness of these efforts within five years of approval of the TMDL Action Plan. History: Adopted by the North Coast Regional Water Quality Control Board on December 7, 2005 under Resolution No. R1-2005-0113. Approved by the State Water Resources Control Board on June 21, 2006 under Resolution No. 2006-0046. s 3910. Policy on the Use of Wastewater to Create, Restore, and/or Enhance Wetlands. This policy revises a 1977 policy to add new provisions which: 1) establish a preference for the creation (rather than restoration or enhancement) of wetlands with wastewater; 2) require the project applicant to consider important wetland functions and values; and 3) in most cases, prohibit the use of these wetlands to satisfy Clean Water Act Section 404 mitigation requirements. The policy also revises the earlier policy to reflect current Basin Planning language, allow portions of a wetland to be created for wastewater treatment, and require a monitoring plan as part of the management plan. s 3911. Use of Constructed Wetlands for Urban Runoff Pollution Control. Constructed wetlands approved under the policy would be waste treatment systems in accordance with 40 CFR Part 122.2, and, as such, would not be waters of the United States. Policy provisions require that the wetland be an "artificial" or constructed system built on an upland site with the primary purpose of treatment. Adequate land and management resources must be committed to the project, wildlife monitoring and vector control programs are required, and the treatment wetlands may not be used to satisfy requirements for wetlands loss mitigation. In addition, a required management plan would include descriptive information, an operations and maintenance plan, and a monitoring plan. The management plan would be the chief means by which the Regional Board would review and/or approve a proposal under the policy. Upon project approval, the management plan would serve as the operations manual for the constructed treatment wetland. s 3912. Revised Water Quality Control Plan for the San Francisco Bay Region. The revisions to regulatory provisions in the basin plan adopted by the San Francisco Bay Regional Water Quality Control Board on September 16, 1992, October 21, 1992, August 17, 1994, and June 21, 1995 are summarized as follows: (a) Beneficial Use Categories and Definitions: Revises the following beneficial use definitions to be consistent with statewide language: "Agricultural Supply," "Cold Freshwater Habitat," "Ocean Commercial and Sport Fishing," "Estuarine Habitat," "Freshwater Replenishment," "Ground Water Recharge," "Industrial Service Supply," "Marine Habitat," "Fish Migration," "Municipal and Domestic Supply," "Navigation," "Industrial Process Supply," "Preservation of Rare and Endangered Species," "Water Contact Recreation," "Non-Contact Water Recreation," "Shellfish Harvesting," "Fish Spawning," "Warm Freshwater Habitat," and "Wildlife Habitat." (b) Water Body Definitions: Adds definitions for "ground water" and "ground water basin." (c) Ground Waters: Identifies ground water basins within the region; designates ground waters within each basin as suitable or potentially suitable for municipal and domestic supply, industrial service supply, industrial process supply, agricultural supply, and/or freshwater replenishment. (d) Wetlands: Clarifies that in cases where the Regional Board is required to delineate a specific wetland site and the beneficial uses associated with that site, that delineation will be based on Federal guidelines. (e) Surface Water Objectives: (1) Clarifies the term "surface waters"; (2) Adds descriptions of major types of point source discharges; (3) Clarifies demonstration required for alternative objective; (4) Clarifies numeric objective for coliform bacteria, and clarifies the relationship between testing methods and existing coliform bacteria objective for water designated as MUN; (5) Revises narrative objective on bioaccumulation to include consideration of effects on wildlife; (6) Deletes from biostimulatory substances narrative objective provisions on investigation resulting from certain chlorophyll a concentrations; (7) Revises narrative objective for population and community ecology; (8) Clarifies narrative objective for sediment; (9) Clarifies existing narrative toxicity objectives by separating into acute and chronic toxicity, revising explanation of "detrimental responses," updating the description of tests used to identify acute toxicity; (10) Establishes a numeric definition of acute toxicity; (11) Clarifies units of measurement for the turbidity objective; (12) Clarifies narrative objective for chemical constituents; (13) Clarifies existing numeric water quality objectives for toxic pollutants: (A) Changes the method for determining where salt or freshwater objectives apply to surface waters from a geographical line to average salinity values; (B) Clarifies that existing freshwater objectives for metals are hardness-dependent, and includes the equations used to derive them; (14) Specifies considerations in developing site specific objectives, lists highest priority constituents. (f) Objectives for Municipal and Agricultural water supplies: Amends numeric objective for constituents of concern in water designated MUN or AGR to reflect changes in Title 22 of the California Code of Regulations. (g) Objectives for Ground Water: Adds primary narrative water quality objective for ground water and narrative objectives for bacteria, organic and inorganic chemical constituents, radioactivity, and taste and odor. (h) Watershed Management: Adds a policy that supports the local definition and implementation of watershed management plans. (i) Toxic Pollutant Accumulation: Mass-Based Strategies: (1) Adds consideration of pollutant accumulation in setting limits on point and non-point discharges; (2) Provides that wasteload allocation may be based on mass, or concentration in water, tissue, or sediment; (3) Describes monitoring requirements for toxicity, provides for attainment of chronic toxicity objectives at edge of mixing zone and acute toxicity objectives within the mixing zone; (4) Clarifies that the need to determine the chronic effects of major discharges is being addressed by the Board's local effects monitoring program. (j) Discharge Prohibitions: (1) Adds a new exception provision concerning discharge of extracted/treated ground water; (2) Adds a new exception provision to allow discharge from reclamation project in Alameda Creek when no natural flow occurs; (3) Clarifies prohibition regarding biocides. (k) Surface Water Protection and Management: Point Source Control: (1) Effluent Limitations: (A) Defines "best professional judgment" and specifies that it will be used to derive numerical effluent limitations for toxic pollutants in the absence of numerical water quality objectives or standards; (B) Clarifies manner in which effluent limits will be derived in cases where water quality objectives are not being attained; (C) Adds definition of "ocean waters," "inland surface waters," "enclosed bays," and "estuaries;" (D) Deletes 1975 water body segment rankings; (E) Clarifies definition of "deep water discharge"; (F) Clarifies that effluent limitations for conventional pollutants discharged to inland surface waters includes enclosed bays and estuaries; (G) Adds condition for substitution of fecal coliform limitation for total coliform limitation; (H) Clarifies effluent limitations for selected toxic pollutants discharged to surface waters; (I) Clarifies implementation of toxicity objectives by updating the description of appropriate tests, monitoring frequency, interpretation of statistical results, and approaches for addressing violation of toxicity limits, and adds more stringent acute toxicity limits for deep water discharges; (J) Adds condition for allowing compliance monitoring with only one fish species; (K) Clarifies conditions under which the Board will consider observed toxicity to be due to ammonia and thus not a violation of toxicity limits; (L) Adds factors for setting chronic toxicity effluent limits for individual dischargers; (M) Adds basis for chronic toxicity monitoring requirements; (N) Adds the requirement of Toxicity Identification/Reduction Evaluation (TIE/TRE) when persistent chronic toxicity is observed; (O) Adds requirement for waste minimization if consistent toxicity is exhibited; (P) Adds equation for calculating water quality-based effluent limitations; (Q) Adds conditions for approval of an effluent limitation greater than that calculated from water quality objectives for deep water discharges; (R) Adds a new provision specifying when exceptions will be granted to the assigned dilution allowance for shallow water discharges; (S) Fresh Water vs. Marine Water: 1. Deletes the existing provision that effluent limits will be based on the lower of fresh or marine objectives for all receiving water bodies within the Region; 2. Adds the provision that specifies the salinity and beneficial use characteristics of the receiving waters in determining whether freshwater or marine water limitations apply; (2) Implementation of Effluent Limitations: (A) Adds options for permit modifications, including performance based limits, when an existing effluent limit is lower than necessary to achieve water quality objectives; (B) Provides for calculation of effluent limitations based upon site-specific objectives; (C) Clarifies that effluent limits will be defined in terms of the mean concentration of all samples analyzed during the averaging period; (D) Defines "method detection limits," "practical quantitation levels," and "limits of quantification" and clarifies that these will be considered in determining compliance with effluent limitations; (E) Clarifies how parameters are selected for inclusion in permits; adds demonstration requirement for substances that do not pose a risk to beneficial uses; (F) Adds a provision on compliance schedules for new objectives or standards; (G) Storm Water Discharges: Adds provisions on contents of NPDES permits for stormwater; (H) Wet Weather Overflows: Clarifies existing policy on wet weather overflows of wastewater by adding description of minimum controls; (I) Discharge of Treated Groundwater: Adds conditions for granting an exception to discharge prohibitions; (J) Regulation of Industrial Discharges: Adds goal to move to water quality-based standards; (K) Pollution Prevention: 1. Adds goals; 2. Clarifies elements of POTW general pollution prevention program; 3. Revises elements of POTW targeted pollution prevention program; 4. Revises direct industrial discharger pollution prevention program. (l) Surface Water Protection and Management -Nonpoint Source Control Measures: (1) Revises nonpoint source management elements; (2) Adds policy outlining elements of appropriate voluntary Baseline Control Program for local entities to reduce pollutant loadings into storm drains; (3) Revises programs for comprehensive urban runoff control, highway runoff control, and industrial stormwater runoff control; (4) Clarifies Board's permitting of stormwater discharge from industrial facilities and construction activities involving disturbance of five or more acres. (m) Dairy Waste Management: Adds policy supporting cooperative correction of dairy waste problems and adoption of Waste Discharge Requirements when objectives in an agricultural watershed are consistently exceeded or past corrective actions have not resolved water quality problems. (n) Reclamation Requirements: Adds provisions under which certain dischargers may issue their own permits for use of reclaimed water. (o) Individual System Guidelines: Clarifies existing policy on the design, use, and permitting of alternative septic systems and graywater disposal. (p) Erosion and Sediment Control: (1) Clarifies when enforcement authority will be exercised; (2) Revises guidelines for regulating erosion and sedimentation. (q) Dredging: (1) Adds a policy supporting upland disposal of material with a market value; (2) Adds policy goals of the Long-Term Management Strategy; (3) Clarifies definition of a "water year." (r) Mines and Mineral Producers: (1) Adds policy for protecting beneficial uses of receiving waters affected by past or present mining activities; (2) Clarifies Board's permitting of runoff from mine sites; (3) Adds provisions for Waste Discharge Requirements for mining sites that discharge waste. (s) Wetlands Protection and Management: (1) Clarifies general process that will be used to identify beneficial uses in wetlands; (2) Clarifies that proposals involving wetland fill or discharge of waste to wetlands will be reviewed to determine impacts on wetland beneficial uses; (3) Adds provision that in cases where mitigation is required under the Clean Water Act, the mitigation project should be located in the same part of the Region whenever possible; (4) Implements the Governor's Executive Order W-59-93 by adding policy of no-net-loss of wetland acreage and no-net-loss of wetland value within the Region. (t) Ground Water Protection and Management: (1) Adds goals; (2) Specifies that water quality objectives apply to all ground waters, rather than at a wellhead or at a point of consumption; (3) Explains the Board's approach to the use of water quality objectives for ground water. (u) Shallow Drainage Wells: (1) Prohibits unauthorized construction and use of shallow drainage wells; (2) Adds demonstration requirement for continued use of existing wells or construction of new wells. (v) Designated Waste: (1) Clarifies criteria for determining whether a non-hazardous waste is a designated waste; (2) Adds requirement for proposal of waste constituent concentration criteria by certain municipal solid waste disposal facilities. (w) (Landfill Expansions: Adds policy on locating or expanding landfills in sensitive ground water areas. (x) Cleanup of Polluted Sites: (1) Adds strategy for managing polluted sites; (2) Adds policies and procedures for setting ground water cleanup levels: specifies the concentration ranges for cleanup levels for waterbodies without, and with a beneficial use of municipal and domestic supply; (3) Adds policies and procedures for setting soil cleanup levels: (A) Specifies that soil cleanup levels will be set based on threat to water quality; (B) Adds "generic" cleanup levels for total VOCs and total semi-volatiles at certain sites. s 3913. Site-Specific Water Quality Objectives for Copper and Nickel South of the Dumbarton Bridge. Through Regional Water Board Resolution R2-2002-0061, the San Francisco Bay Regional Water Quality Control Board (Regional Board) amended on May 22, 2002, the Water Quality Control Plan for the San Francisco Bay Region (Basin Plan). The Basin Plan amendment adopted by the Regional Board includes two new regulatory provisions, which are summarized below. 1. The amendment specifies new site-specific water quality objectives (SSOs) for copper and nickel in the portion of San Francisco Bay South of the Dumbarton Bridge. The SSOs are 6.9mg/1 for a 4-day average and 10.8 for a one-hour average for dissolved copper and 11.9mg/1 for a 4-day average and 62.4mg/1 for a one-hour average for dissolved nickel. 2. The amendment specifies numeric values of metal translators (ration of dissolved to total metal) for copper and nickel in San Francisco Bay South of the Dumbarton Bridge that will be used to compute National Pollutant Discharge Elimination System (NPDES) effluent limitations according to the procedure outlined in the Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of Californiafor the three Municipal Wastewater Treatment facilities discharging to this portion of San Francisco Bay. These translators are 0.53 for copper and 0.44 for nickel. Other Basin Plan amendments are non-regulatory and consist primarily of language updates and an implementation plan to implement the new site-specific objectives. The implementation plan does not contain any new regulatory requirement (other than establishment of the metal translators described above), but instead summarizes already existing permit requirements. s 3914. Updates Water Quality Objectives, National Pollutant Discharge Elimination System (NPDES) Implementation Measures, and Edits Language. Amendment revises water quality objectives for arsenic, cadmium, chromium (VI), copper (freshwater only), lead, nickel, silver, and zinc to be consistent with federal California Toxics Rule (CTR) regulations. These objectives will apply throughout the region. Definitions of "freshwater," "estuarine," and "marine" are revised to be consistent with the CTR. This amendment incorporates provisions of the State Water Resources Control Board Policy for Implementation of Toxic Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of California pertaining to NPDES permitting. Obsolete provisions are removed, descriptions and references are updated and clarified, and minor corrections are made to the Basin Plan text. s 3916. Total Maximum Daily Load for Pathogens in Tomales Bay Watershed. The San Francisco Bay Regional Water Quality Control Board adopted Resolution R2-2005-0046 on September 21, 2005, which amended the Water Quality Control Plan for the San Francisco Bay Region (Basin Plan) by establishing a program (a Total Maximum Daily Load (TMDL)) to control pathogens in the Tomales Bay watershed. The TMDL sets numeric targets, allocates responsibility among the sources for meeting those targets, and establishes an implementation plan to ensure that all segments of Tomales Bay and its major tributaries (Lagunitas Creek, Walker Creek, and Olema Creek) attain applicable bacteriological water quality standards established in the Basin Plan to protect and support the beneficial uses. The numeric targets consist of: (1) Fecal coliform bacteria density targets for Tomales Bay and the main tributaries identical to the Basin Plan objectives; (2) A shellfish harvesting closure target of less than 30 days per year; and (3) A human fecal waste discharge prohibition. The implementation plan requires actions to eliminate any discharges of human fecal waste from boats, on-site sewage disposal systems, small wastewater treatment facilities, and sewage holding ponds. Density-based allocations for fecal coliform bacteria are assigned to the various animal fecal waste sources to the watershed (grazing lands, dairies, equestrian facilities, and domestic animals) and reflect the highest fecal coliform bacterial densities that can be discharged while still attaining the shellfish harvesting beneficial use in Tomales Bay. Discharging entities are not held accountable for discharges originating from wildlife. The requirements are consistent with the State's Policy for Implementation and Enforcement of the Nonpoint Source Pollution Control Program and the California Water Code. Implementation measures include evaluation of operating practices, development of control measures, a schedule for implementing those measures, and submittal of progress reports documenting the actions taken. Water quality monitoring will be conducted to evaluate fecal coliform concentration trends in Tomales Bay and its tributaries. Every five years, the San Francisco Bay Water Board will evaluate new and relevant information from monitoring and scientific literature, assess progress towards meeting the targets and load allocations and appropriateness and effectiveness of proposed action, and may consider revising the TMDL if needed. The reviews will provide opportunities for public participation. Any necessary modifications to the targets, allocations, or implementation plan will be incorporated into the Basin Plan. The California Department of Health Services, working in consultation with the Tomales Bay Shellfish Technical Advisory Committee, is encouraged to periodically evaluate shellfish harvesting guidelines beginning in 2009. s 3920. Water Quality Control Plans. The following are changes to the 1990 Water Quality Control Plan for the Central Coast Region (Basin Plan): (1) Revision of language in beneficial use definitions to be more consistent with statewide format. Changes include adding an "Estuarine Habitat", "Freshwater Replenishment", "Hydropower Generation", and "Aquaculture" beneficial use. The "Fish Migration" (Migr) definition is clarified to emphasize waters supporting habitat needed by migrating aquatic organisms is included in the definition. The "Navigation" beneficial use is expanded to include waters used for all types of shipping (not just Naval shipping), waters used for travel, or waters used for transportation. The "Commercial and Sport Fishing" beneficial use is expanded to consider fresh water body areas not just saline waters. The "Shellfish Harvesting" beneficial use is expanded to include waters used for collection of shellfish for human consumption. Shellfish are also defined as filter feeding varieties. (2) Assign designated beneficial uses for approximately 300 additional water bodies and revise beneficial use designations for approximately 150 water bodies. (3) Update water quality objectives for organic chemicals in accordance with Title 22, California Code of Regulations. (4) Add water quality objectives for the Paso Robles ground water basin. (5) Add Regional Water Quality Control Board Policy to alleviate seawater intrusion in the Salinas and Pajaro ground water basins. (6) Add Regional Water Quality Control Board Policy of Appreciation for Discharger Compliance. s 3921. Revised Beneficial Use Definitions. The 1994 Water Quality Control Plan for the Central Coast Region (Basin Plan) was amended in September 1994 resulting in revisions to the definitions for the following beneficial uses: Freshwater Replenishment (FRSH), Navigation (NAV), Estuarine Habitat (EST), and Shellfish Harvesting (SHELL). s 3922. San Lorenzo River Watershed Wastewater Management Plan. The 1994 Water Quality Control Plan for the Central Coast Region (Basin Plan) was amended on April 14, 1995 as follows: the San Lorenzo Valley on-site septic system prohibition was rescinded and replaced with the "Wastewater Management Plan for the San Lorenzo River Watershed" and "San Lorenzo Nitrate Management Plan, Phase II Final Report." s 3923. Removal of the Numeric Nitrate Objective for the San Lorenzo River. On June 2, 2002, the Central Coast Regional Water Quality Control Board adopted Resolution No. 00-001 amending the Water Quality Control Plan for the Central Coast Basin (Basin Plan). The amendment revised the Basin Plan by removing the numeric nitrate objective for the San Lorenzo River. Water quality will continue to be protected by the narrative Basin Plan taste and odor and biostimulatory effects objectives. The amendment removes the numeric nitrate objective for San Lorenzo River from Chapter Three, page III-14 in the Basin Plan. s 3924. Total Maximum Daily Load (TMDL) for Pathogens in Morro Bay, Including Chorro and Los Osos Creeks. Establishes a Total Maximum Daily Load (TMDL) for pathogens in Morro Bay, Chorro and Los Osos Creeks to address impairment of the beneficial uses of Shellfish Harvesting, Contact Recreation and Non-contact Recreation by excessive levels of bacterial indicator organisms. The numeric target in the Bay is equal to the California Department of Health Service's standard, and the numeric targets for the Creeks are equal to the existing water quality objectives. An implicit margin of safety was incorporated into the TMDL through the use of conservative numeric targets. The Regional Water Quality Control Board (Regional Board) will rely on self-determined actions and actions required by existing regulatory authority (National Pollutant Discharge Eliminations Systems permits for stormwater discharges and Waste Discharge Requirements [WDRs] for treated sewage discharges) for a ten-year implementation period to achieve the TMDL. The Regional Board will monitoring water quality for compliance with the numeric targets for fecal coliform and/or other appropriate bacterial indicator organisms and will track implementation progress. Any future revision of the TMDL or the numeric targets will be considered through the Basin Plan amendment process. If future revision to the implementation strategy is recommended, the revision will be considered through the Basin Plan amendment process and/or on a case-by-case basis through existing regulatory authority (e.g., additional WDRs). s 3925. Concise Summary of Regulatory Provisions. Regional Board Resolution No. R3-2002-0051, adopted on May 16, 2003 by the Central Coast Regional Water Quality Control Board (Regional Board), modified the regulatory provisions of the Water Quality Control Plan for the Central Coast Region (Basin Plan) by establishing a Total Maximum Daily Load (TMDL) for Sediment in Chorro Creek, Los Osos Creek, and the Morro Bay Estuary, adopting numeric targets for sediment, and adopting an implementation plan to achieve the TMDL. This Basin Plan amendment establishes the TMDL for sediment in Chorro Creek at 30,020 tons/year; in Los Osos Creek at 4,864 tons/year; and in the Morro Bay Estuary at 24,885 tons/year. An implicit margin of safety was incorporated into the TMDL through the use of conservative assumptions throughout the sediment source analysis and characterization of beneficial uses impacts. The Regional Board set load allocations for subwatersheds based on fifty percent reductions in erosion. The amendment establishes numeric targets for streambed sediment characteristics known to be supportive of the beneficial uses protecting anadromous fish and for the volume of tidal prism in the Morro Bay Estuary. The numeric targets interpret narrative water quality objectives for sediment in the Basin Plan. The Regional Board will evaluate the TMDL by monitoring numeric targets and tracking implementation actions. Implementation emphasizes the activities of the Morro Bay National Estuary Program, Coastal San Luis Resources Conservation District, and other public and private groups to implement self-determined activities identified in the amendment language. If self-determined actions have not been completed at the end of the third year of implementation, staff will develop a regulatory approach (rather than a self-determined approach) and present a revised implementation plan to the Regional Board as a Basin Plan amendment. This Basin Plan amendment establishes a 50- year implementation period to achieve the TMDL. Revision of the TMDL, the numeric targets, or the implementation strategy would be considered through the Basin Plan amendment process. s 3926. Amends the Water Quality Control Plan (Basin Plan) for the Central Coast Region to Include a Revised and Updated Monitoring and Assessment Chapter (Chapter 6). On December 24, 2002, the Central Coast Regional Water Quality Control Board (Regional Board) adopted an amendment to theWater Quality Control Plan - Central Coastal Basin, 1994(Basin Plan). TheWater Quality Control Plan - Central Coastal Basin, 1994(Basin Plan) serves as the cornerstone water quality protection policy and legal standards for the Central Coast. It identifies beneficial uses of surface and ground waters, establishes water quality objectives to protect beneficial uses, and provides an implementation plan to achieve those objectives. The Basin Plan includes a chapter on surveillance, monitoring, and assessment programs of the State and the Region (Chapter 6). Over the intervening years, new monitoring and assessment programs have been developed and existing monitoring and assessment programs have changed. The purpose of this amendment is to include up-to-date information on State and Regional surveillance, monitoring, and assessment programs and requirements described in Chapter 6 of the Basin Plan. s 3927. A Total Maximum Daily Load and Implementation Plan for Sediment in the San Lorenzo River, Including Carbonera Creek, Lompico Creek, and Shingle Mill Creek. Regional Board Resolution No. R-3-2002-0063, adopted on May 16, 2003 by the Central Coast Regional Water Quality Control Board (Regional Board), modified the regulatory provisions of the Water Quality Control Plan for the Central Coast Region (Basin Plan) by establishing Total Maximum Daily Loads (TMDLs) for Sediment in the San Lorenzo River, including Carbonera Creek, Lompico Creek, and Shingle Mill Creek, adopting numeric targets for sediment, and adopting an implementation plan to achieve the TMDLs. This Basin Plan amendment establishes the TMDL for sediment in the San Lorenzo River at 306,139 tons/year; in Carbonera Creek at 11,728 tons/year; in Lompico Creek at 9,542 tons/year; and in Shingle Mill Creek at 857 tons/year. An implicit margin of safety was incorporated into the TMDLs through the use of conservative assumptions throughout the sediment source analysis and characterization of beneficial use impacts. The Regional Board also allocated the TMDLs, based on achievable reductions in sediment loading of up to 27 percent of current loads, to the major land use categories in the watershed. Through this Basin Plan amendment, the Regional Board adopted numeric targets for streambed sediment characteristics known to be supportive of the beneficial uses protecting anadromous fish. These numeric targets interpret narrative water quality objectives for sediment in the Basin Plan. The Regional Board will evaluate the TMDLs by monitoring numeric targets and tracking implementation actions. Implementation emphasizes the role of the Santo Cruz County Departments of Planning and Public Works, the Santa Cruz County Resource Conservation District, and other public and private groups to implement self-determined activities identified in the amendment language. By the end of the first year of implementation, the Regional Board and the implementing parties will establish a time schedule for completion of trackable implementation actions identified in the amendment language, or, staff will develop the schedule and present it to the Regional Board as a Basin Plan amendment. If, in future years, self-determined actions have not been completed, staff will develop a regulatory approach (rather than a self-determined approach) and present a revised implementation plan to the Regional Board as a Basin Plan amendment. The Regional Board scheduled a 25-year implementation period to achieve the TMDL. Revision of the TMDL, the numeric targets, or the implementation strategy would be considered through the Basin Plan amendment process. s 3928. Total Maximum Daily Load (TMDL) and Implementation Plan for Pathogens in San Luis Obispo Creek. On December 3, 2004, the Central Coast Regional Water Quality Control Board (Central Coast Water Board) adopted Resolution No. R3-2004-0142 amending the Water Quality Control Plan for the Central Coast Region (Basin Plan). The amendment revised the Basin Plan by establishing the San Luis Obispo Creek Total Maximum Daily Load and Implementation Plan for Pathogens (TMDL). The TMDL addresses impairment of San Luis Obispo Creek due to fecal coliform. Current fecal coliform concentration in San Luis Obispo Creek is impairing the water contact recreation and non-contact water recreation beneficial uses (REC-1 and REC-2, respectively.) The TMDL establishes a numeric target for fecal coliform consistent with current Basin Plan objectives protecting both REC-1 and REC-2 beneficial uses. Fecal coliform concentration, based on a minimum of not less than five samples for any 30-day period, shall not exceed a log mean of 200 MPN per 100mL, nor shall more than ten percent of total samples collected during any 30-day period exceed 400 MPN per 100mL. Achieving the numeric target is the responsibility of several entities described in the Basin Plan amendment. An implicit margin of safety is utilized in the TMDL to account for uncertainties. The Central Coast Water Board is relying on existing regulatory authority to insure implementation actions are carried out by the implementing parties using existing permits. An implementation target of ten years is established for achieving the TMDL. The Central Coast Water Board will track progress towards achieving the TMDL through review of implementation actions and monitoring conducted by the implementing parties. Staff will conduct triennial reviews of implementation actions and monitoring results. If existing efforts are not expected to achieve the TMDL as scheduled (as determined by a triennial review), staff will recommend that additional reporting, monitoring, or implementation efforts be required either through approval by the Executive Officer (e.g., pursuant to California Water Code section 13267 or 13383) or by the Central Coast Water Board (e.g., through revisions of existing permits and/or a Basin Plan amendment). s 3929. Total Maximum Daily Load (TMDL) and Implementation Plan for Nitrate-N in San Luis Obispo Creek. Resolution No. R3-2005-0106, adopted on September 9, 2005 by the Central Coast Regional Water Quality Control Board (Central Coast Water Board), modified the regulatory provisions of the Water Quality Control Plan for the Central Coast Region. The State Water Resources Control Board (State Water Board) approved the amendment on June 21, 2006, under Resolution No. 2006-0045. Resolution No. R3-2005-0106 established the San Luis Obispo Creek Total Maximum Daily Load (TMDL) and Implementation Plan for Nitrate-Nitrogen (nitrate-N). The TMDL addresses impairment of San Luis Obispo Creek due to nitrate-N. Current nitrate-N concentrations in San Luis Obispo Creek are impairing the beneficial uses of the municipal and domestic supply of water. The TMDL establishes a numeric target for nitrate-N consistent with the current Water Quality Control Plan objective protecting the municipal and domestic water supply beneficial use. Responsibility for achieving the numeric target falls upon several entities as described in the resolution. The TMDL utilizes an implicit margin of safety to account for uncertainties. The Central Coast Water Board is relying on existing regulatory authority to ensure that implementation actions are carried out, through National Pollutant Discharge Elimination System permits, waste discharge requirements, and waivers. An implementation target date of the year 2012 is established for achieving the TMDL. The Central Coast Water Board will track progress towards achieving the TMDL through review of implementation actions and monitoring conducted by the implementing parties. Central Coast Water Board staff plans to conduct triennial reviews of implementation actions and monitoring results. If the triennial review shows that existing efforts will not achieve the TMDL as scheduled, the Executive Officer of the Central Coast Water Board may require changes to existing monitoring, reporting, or implementation efforts, pursuant to California Water Code section 13267 or section 13383. s 3930. Revised Water Quality Control Plan for the Los Angeles Region. The revised Water Quality Control plan (Basin Plan) for the Los Angeles Region, as adopted June 13, 1994, by the Los Angeles Regional Water Quality Control Board modifies the regulatory provisions of the previous Basin Plan and its amendments as follows: (a) Beneficial Use Categories and Definitions: Add definitions for "Aquaculture," "Estuarine Habitat," and "Wetland Habitat." Revise beneficial use categories previously incorporated: "Municipal and Domestic Supply," "Agricultural Supply," "Industrial Process Supply," "Freshwater Replenishment," "Navigation," "Contact Water Recreation," "Non-Contact Water Recreation," "Commercial and Sport Fishing," "Warm Freshwater Habitat, " "Cold Freshwater Habitat," "Inland Saline Water Habitat," "Marine Habitat," "Wildlife Habitat," "Rare, Threatened or Endangered Species," "Migration of Aquatic Organisms," "Spawning, Reproduction, and/or Early Development," and "Shellfish Harvesting." (b) Water Body Type Definitions: add definition of "Wetlands"; (c) Waste Discharge Requirements (Inland Waters): Add interim restriction on new effluent limits for waters designated as "Municipal and Domestic Supply" (MUN) under State Board Resolution No. 88-63 and Regional Board Resolution No. 89-03. (d) Add clarification of "Wetland Habitat" designation. (e) Inland Surface Water: (1) Add numeric and narrative objectives for total and un-ionized ammonia; (2) Amend coliform bacteria testing frequency; (3) Add narrative objective for bioaccumulation; (4) Add narrative objective for biochemical oxygen demand; (5) Add narrative objective and revise numeric objectives for chemical constituents in MUN use; (6) Add numeric and narrative objectives for total residual chlorine; (7) Add narrative objective for exotic vegetation; (8) Add numeric objective for methylene blue activated substances; (9) Revise numeric objective for pesticides; (10) Add numeric and narrative objective for polychlorinated biphenyls; (11) Revise numeric objectives for radioactivity in MUN use; (12) Add maximum contaminant level numeric objective for uranium in MUN use; (13) Revise numeric objective for temperature; (14) Revise narrative objective for toxicity; (15) Revise narrative objective for turbidity; (16) Add narrative objective for wetlands; (17) Revise numeric mineral objectives for total dissolved solids (TDS), sulfate, chloride, boron, nitrogen and sodium adsorption ratio for selected inland surface waterbodies. (f) Ground Water: (1) Revise numeric objective for bacteria; (2) Revise numeric objectives for chemical constituents and radionuclides in MUN use; (3) Add maximum contaminant level numeric objective for Uranium in MUN use; (4) Revise numeric mineral objectives for TDS, sulfate, chloride, and boron for selected ground water basins; (5) Add numeric objective for nitrogen. (g) Site specific objectives: (1) Add guidelines for the development of site-specific objectives; (2) Add criteria for site-specific determination of effluent limit. (h) Waste Discharge Requirements (Land Disposal): (1) Add procedures for siting inert landfills. s 3931. Revision of Surface Water Quality Objectives for Chloride and Incorporation of a Revised Policy for Addressing Levels of Chloride in Discharges of Wastewater. Regional Board Resolution No. 97-02, adopted on January 27, 1997, by the Los Angeles Regional Water Quality Control Board (LARWQCB), modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region by: (1) revising chloride objectives for certain water body segments in the Los Angeles River and San Gabriel River watersheds, (2) establishing interim chloride limits for existing dischargers in the Santa Clara River and Calleguas Creek watersheds, and (3) establishing a procedure to assess chloride loading and effect protection of the agricultural beneficial use in the Santa Clara River and Calleguas Creek watersheds. s 3932. Removal of the Municipal and Domestic (MUN) Beneficial Use Designation from Two Areas of One Ground Water Basin. Regional Board Resolution No. 98-18 adopted on November 2, 1998 by the Los Angeles Regional Water Quality Control Board modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region by removing the MUN beneficial use designation from two specifically defined areas of one ground water basin [the portion of West Basin underlying Chevron Facility in El Segundo and the aquifers underlying Terminal Island and portions of the Los Angeles and Long Beach Harbors]. s 3933. A Total Maximum Daily Load for Trash for the East Fork of the San Gabriel River. Resolution No. 99-15, adopted on October 28, 1999 by the Los Angeles Regional Water Quality Control Board (LARWQCB), modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region by (1) revising the Table of Contents, (2) adding introductory text for Chapter 7 (Total Maximum Daily Loads), and (3) establishing a Total Maximum Daily Load (TMDL) for Trash for the East Fork of the San Gabriel River. The TMDL addresses impairment to water quality due to trash being deposited in and along the stream by recreational users. The TMDL sets a numeric target of no trash in the river which implicitly incorporates a margin of safety, based on a conservative interpretation of narrative water quality objectives. As the responsible party, the U.S. Forest Service is assigned a load allocation of zero trash discharged to the river. On May 25, 2000, the LARWQCB adopted Resolution No. 00-10, which revised the implementation dates contained within the TMDL. The U.S. Forest Service must submit a TMDL Implementation Plan within 60 days of the effective date of the amendment and begin implementation and monitoring within 90 days of the effective date of the amendment. The U.S. Forest Service must demonstrate compliance with the TMDL numeric target no later than April 1, 2003. s 3934. Septic System Prohibition in the Oxnard Forebay. Resolution No. 99-13 adopted on August 12, 1999 by the Los Angeles Regional Water Quality Control Board (LARWQCB) amends the Los Angeles Water Quality Control Plan (Basin Plan) to prohibit new septic systems in the Oxnard Forebay area of Ventura County effective on the date of approval by the Office of Administrative Law. The amendment also prohibits discharges from existing septic systems after January 1, 2008. The prohibition does not prevent repairs to existing septic systems in the Oxnard Forebay prior to January 1, 2008, provided that the purpose of such repairs is not to increase capacity. Individual septic systems located on lot sizes equal to or greater than five acres are subject to this prohibition. However, the prohibition does not preclude the LARWQCB from issuing Waste Discharge Requirements for septic systems on lots of greater than five acres. s 3935. A Total Maximum Daily Load for Trash for the Los Angeles River. Regional Board Resolution No. 01-013 adopted on September 19, 2001 by the Los Angeles Regional Water Quality Control Board, modified the Regulatory provisions of the Water Quality Plan for the Los Angeles Region (Basin Plan) by (1) revising the Table of Contents and the List of Figures, Tables, and Inserts, (2) adding text to Chapter 3 (Water Quality Objectives) to reference specific guidelines for the Los Angeles River, and (3) adding text to Chapter 7 (Total Maximum Daily Loads Summaries) which establishes a Total Maximum Daily Load (TMDL) for Trash for the Los Angeles River. This TMDL addresses the impairment of water quality due to trash being discharged to the river via municipal storm drains; and will be implemented through the National Pollutant Discharge Elimination System storm-water permits. The numeric target of zero trash in the river implicitly incorporates a margin of safety, based on a conservative interpretation of narrative water quality objectives. The TMDL establishes a schedule for progressively reducing the amount of trash discharged by ten percent per year, until the target is reached. California Department of Transportation and the Los Angeles County Department of Public Works and its municipal storm water co-permittees are responsible for trash discharged from the storm drains to the Los Angeles River, and have been assigned default waste load allocations. The permittees are required to submit a plan for baseline monitoring to refine waste load allocations within 30 days of the Regional Board's request as authorized by Section 13267 of the California Water Code. The implementation phase of the TMDL is scheduled to begin on October 1, 2003. Compliance with the TMDL numeric target must be demonstrated no later than September 15, 2015. s 3936. A Total Maximum Daily Load for Trash for the Ballona Creek and Wetland. Regional Board Resolution No. 01-014, adopted on September 19, 2001 by the Los Angeles Regional Water Quality Control Board, modified the Regulatory provisions of the Water Quality Plan for the Los Angeles Region (Basin Plan) by (1) revising the Table of Contents and the List of Figures, Tables, and Inserts, (2) adding text to Chapter 3 (Water Quality Objectives) to reference specific guidelines for the Ballona Creek and Wetland, and (3) adding text to Chapter 7 (Total Maximum Daily Loads Summaries) which establishes a Total Maximum Daily Load (TMDL) for Trash for the Ballona Creek and Wetland. This TMDL addresses the impairment of water quality due to trash being discharged to the creek via municipal storm drains; and will be implemented through the National Pollutant Discharge Elimination System storm-water permits. The numeric target of zero trash in the river implicitly incorporates a margin of safety, based on a conservative interpretation of narrative water quality objectives. The TMDL establishes a schedule for progressively reducing the amount of trash discharged by ten percent per year, until the target is reached. California Department of Transportation and the Los Angeles County Department of Public Works and its municipal storm water co-permittees are responsible for trash discharged from the storm drains to the Ballona Creek and Wetland, and have been assigned default waste load allocations. The permittees are required to submit a plan for baseline monitoring to refine the waste load allocations within 30 days of the Regional Board's request as authorized by Section 13267 of the California Water Code. After a period of baseline monitoring, the implementation phase of the TMDL is scheduled to begin on October 1, 2003. Compliance with the TMDL numeric target must be demonstrated no later than September 30, 2015. s 3937. Revised Bacteria Objectives for Waters Designated for Water Contact Recreation. On October 25, 2001 the Los Angeles Regional Water Quality Control Board (Regional Board), adopted Resolution No. 01-018 amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revised the Basin Plan by incorporating new water quality objectives for bacteria for fresh and marine waters. These objectives update the previous objectives and represent the best data currently available. In Chapter 3 "Water Quality Objectives" of the Basin Plan, replace Paragraph 2 under "Bacteria, Coliform" on p. 3-3 with the following: In Marine Waters Designated for Water Contact Recreation (REC-1) 1. Geometric Mean Limits a. Total coliform density shall not exceed 1,000/100 ml. b. Fecal coliform density shall not exceed 200/100 ml. c. Enterococcus density shall not exceed 35/100 ml. 2. Single Sample Limits a. Total coliform density shall not exceed 10,000/100 ml. b. Fecal coliform density shall not exceed 400/100 ml. c. Enterococcus density shall not exceed 104/100 ml. d. Total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1. In Fresh Waters Designated for Water Contact Recreation (REC-1) 1. Geometric Mean Limits a. E. coli density shall not exceed 126/100 ml. b. Fecal coliform density shall not exceed 200/100 ml. 2. Single Sample Limits a. E. coli density shall not exceed 235/100 ml. b. Fecal coliform density shall not exceed 400/100 ml. Implementation Provisions for Water Contact Recreation Bacteria Objectives The geometric mean values should be calculated based on a statistically sufficient number of samples (generally not less than 5 samples equally spaced over a 30-day period). If any of the single sample limits are exceeded, the Regional Board may require repeat sampling on a daily basis until the sample falls below the single sample limit in order to determine the persistence of the exceedance. When repeat sampling is required because of an exceedance of any one single sample limit, values from all samples collected during that 30-day period shall be used to calculate the geometric mean. s 3938. Total Maximum Daily Load for Bacteria During Dry Weather at Santa Monica Bay Beaches. This basin plan amendment establishes a Total Maximum Daily Load (TMDL) for bacteria for Santa Monica Bay Beaches for summer (April to October 31) and winter (November 1 to March 31) dry weather periods. The TMDL: (1) establishes the loading capacity of the bay beaches as the maximum densities of the four bacterial indicators (total coliform, fecal coliform, enterococcus, and total coliform when fecal-to-total ratio exceeds 0.1) specified in the basin plan as bacteriological water quality objectives for marine water having a water contact beneficial use designation; (2) specifies the maximum number of daily and weekly sampling days per dry period which each of the 56 existing shoreline monitoring stations may exceed any singe sample maximum density water quality objective (no days of exceedance are allowed at any station during the summer dry weather period); (3) provides that all responsible jurisdictions and agencies within a subwatershed are jointly responsible for complying with the allowable number of exceedance days for each associated shoreline monitoring site; (4) establishes zero exceedance days during summer and winter dry weather for the three Publicly Owned Treatment Works discharging into Santa Monica Bay; (5) specifies that the samples are to be collected from the wave wash (the compliance point); and, (6) specifies that the allowable exceedance days, and the rolling 30-day geometric bacteria density means (specified in the basin plan as bacteriological water quality objectives) must be achieved within three years for the summer dry weather period and within six years for the winter dry weather period. The amendment identifies the principle regulatory mechanisms to be used to implement the TMDL as the Los Angeles County Municipal Storm Water NPDES permit, the Caltrans Storm Water Permit, the three NPDES permits for the POTWs, and the authority vested in the Executive officer by Water Code section 13267. The amendment provides that within 120 days of its effective date responsible jurisdictions and agencies must submit coordinated shoreline monitoring plans and identify and provide documentation on 342 specified, potential discharges, and on unspecified, potential discharges to a specified Area of Special Biological Significance. The amendment also provides that within two years after the effective date the regional board must reopen the TMDL to re-evaluate allowable winter dry weather exceedance days and to re-evaluate the reference system and reference year used for setting allowable exceedance days. s 3939. Resolution No. 2002-022, Amendments to the Water Quality Control Plan for the Los Angeles Region to Incorporate Implementation Provisions for the Region's Bacteria Objectives and to Incorporate a Wet-Weather Total Maximum Daily Load for Bacteria at Santa Monica Bay Beaches. This basin plan amendment establishes implementation provisions for the bacteria objectives set to protect the water contact recreation (REC1) beneficial use. Specifically, this amendment incorporates a "reference system/antidegradation approach" and a "natural exclusion approach" as implementation procedures for the single sample bacteria objectives in the Basin Plan. It also amends the dry weather TMDL to change the reevaluation date in the TMDL from two years after its effective date to four years after the effective date of the wet weather TMDL to achieve consistency in scheduling between the dry-weather and wet-weather TMDLs. This basin plan amendment establishes a Total Maximum Daily Load (TMDL) for bacteria for Santa Monica Bay Beaches during wet weather, defined as days with one-tenth of an inch of rain or greater and the three days following the rain event as well. The TMDL: (1) establishes the loading capacity of the bay beaches as the maximum densities of the four bacterial indicators (total coliform, fecal coliform, enterococcus, and total coliform when fecal-to-total ratio exceeds 0.1) specified in the basin plan as bacteriological water quality objectives for marine water having a water contact beneficial use designation; (2) specifies the maximum number of daily and weekly wet-weather sampling days per year which each of the 55 existing shoreline monitoring stations may exceed any singe sample maximum bacterial density water quality objective; (3) provides that all responsible jurisdictions and agencies within a subwatershed are jointly responsible for complying with the allowable number of exceedance days for each associated shoreline monitoring site; (4) establishes zero exceedance days during wet weather for the three Publicly Owned Treatment Works discharging into Santa Monica Bay and its watershed; (5) establishes zero exceedance days during wet weather for nonpoint sources; (6) specifies that the allowable exceedance days, and the rolling 30-day geometric bacteria density means (specified in the basin plan as bacteriological water quality objectives) must be achieved no later than ten or eighteen years after the effective date of the TMDL, depending on the implementation approach undertaken; (7) requires responsible jurisdictions and agencies to conduct daily or systematic weekly sampling at all major drains and creeks and at existing monitoring stations at beaches without storm drains or creeks; and, (8) specifies that the samples are to be collected from the wave wash (the compliance point). The amendment identifies the principal regulatory mechanisms to be used to implement the TMDL as the Los Angeles County Municipal Storm Water NPDES permit, the Caltrans Statewide Storm Water Permit, the three NPDES permits for the POTWs, the authority vested in the Executive officer by Water Code sections 13263 and 13267, and regulations to be adopted pursuant to Water Code section 13291. The amendment provides that within 120 days of its effective date responsible jurisdictions and agencies must submit coordinated shoreline monitoring plans. The amendment also provides that within twenty months after the effective date responsible jurisdictions and agencies shall provide a draft written report to the regional board outlining how each intends to cooperatively achieve compliance with the TMDL. The amendment then provides that within two years responsible jurisdictions and agencies shall provide a final written report to the regional board outlining how each intends to cooperatively achieve compliance with the TMDL. The amendment also provides that within four years after the effective date the regional board shall reconsider the TMDL to refine allowable wet-weather exceedance days, re-evaluate the reference system and reference year used for setting allowable exceedance days and re-evaluate whether there is a need for further clarification or revision of the geometric mean implementation provision. Finally, the amendment sets compliance milestones at years 6, 8 and 10 for responsible jurisdictions and agencies not pursuing an integrated water resources approach, and at years 6, 10, 15 and 18 for responsible jurisdictions and agencies pursuing an integrated water resources approach to implementation. s 3939.1. Update of Ammonia Objectives for Inland Surface Waters. The amendment revises the Basin Plan by updating the ammonia water quality objectives for inland surface waters. The Basin Plan objectives for ammonia are based on revised criteria developed by the U.S. Environmental Protection Agency (USEPA) in the "1999 Update of Ambient Water Quality Criteria for Ammonia." These most recent USEPA freshwater aquatic life criteria for ammonia supercede previous criteria. The previous Basin Plan one-hour average and four-day average objectives for waters designated as "WARM" are retained for waters not characteristic of freshwater. The ammonia objectives provide 1-hour average, 4-day average, and 30-day average objectives for ammonia. The one-hour average objective is dependent on pH and fish species (salmonids present or absent). It is assumed that salmonids may be present in waters designated in the Basin Plan as "COLD" or "MIGR" and that salmonids are absent in waters not designated in the Basin Plan as "COLD" or "MIGR," in the absence of additional information to the contrary. The 30-day average objective is dependent on pH and temperature. At lower temperatures, the 30-day average objective also is dependent on the presence or absence of early life stages of fish (ELS). Water bodies with a Basin Plan designation of "SPWN" support high quality aquatic habitats suitable for reproduction and early development of fish and, therefore, these water bodies are designated as ELS present waters. The four-day average objective is 2.5 times the 30-day average objective. The Basin Plan amendment also includes specific implementation provisions for the objectives. These include methods for (1) determination of freshwater, brackish water or salt water conditions; (2) determination of presence or absence of salmonids when selecting the appropriate one-hour average objective; (3) determination of presence or absence of ELS when selecting the appropriate 30-day average objective; (4) implementation of the objectives where more sensitive threatened or endangered species are present; and (5) translation of objectives to effluent limitations using a method similar to that in the "Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of California" (2000). s 3939.2. A Total Maximum Daily Load for Nitrogen Compounds and Related Effects in Calleguas Creek, its Tributaries, and Mugu Lagoon. Los Angeles Regional Water Quality Control Board (Regional Board) Resolution No. 02-017, adopted on October 24, 2002 by the Regional Board, modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region by establishing a Total Maximum Daily Load (TMDL) for nitrogen compounds in Calleguas Creek, its tributaries, and Mugu Lagoon. The TMDL specifies concentration-based targets for ammonia, nitrate, nitrite, and combined nitrate and nitrite, which must be fully attained seven years after the effective date of the TMDL. The TMDL includes a margin of safety with both implicit and explicit components. The TMDL establishes a four-year plan for reducing nitrogen loading from five wastewater treatment plants in the watershed. To allow time to meet the targets, interim limits will be allowed. The final wasteload allocations for ammonia assigned to the wastewater treatment plants must be met no later than October 24, 2004, and the final wasteload allocations for nitrate and nitrite must be met four years after the effective date of the TMDL. Load allocations for agriculture and other nonpoint source discharges are implemented through various management practices. One year after the effective date of the TMDL, monitoring plans to evaluate the effectiveness of the TMDL must be submitted to the Regional Board by Calleguas Creek Watershed Management Plan Water Resources/Water Quality Subcommittee (CCWMP). CCWMP is responsible for the watershed monitoring and special studies required by this TMDL. The special studies must be completed five years after the effective date of the TMDL. s 3939.3. Compliance Schedule Policy. On January 30, 2003 the Los Angeles Regional Water Quality Control Board (Regional Board), adopted Resolution No. 2003-01 amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revised the Basin Plan by incorporating language authorizing the inclusion of compliance schedules in National Pollutant Discharge Elimination System (NPDES) permits. The amendment revised the regulatory provisions of the Basin Plan by adding language to Chapter 3 "Water Quality Objectives" and Chapter 4, "Strategic Planning and Implementation." The language specifies that where the Regional Board determines that it is infeasible for an existing discharger to achieve immediate compliance with an effluent limitation specified to implement a new, revised or newly interpreted water quality standard, the Regional Board may establish a compliance schedule in the discharger's Waste Discharge Requirements (NPDES permit). In addition, the Regional Board may establish a compliance schedule to implement a total maximum daily load (TMDL) adopted as a single permitting action (i.e., through one NPDES permit). This provision authorizes compliance schedules for standards that are adopted, revised or newly interpreted after the effective date of this amendment. An authorized compliance schedule shall include a time schedule for completing specific actions (including interim effluent limits), final effluent limitations, and a final compliance date, based on the shortest possible time required to achieve compliance. Except in the case of a TMDL adopted as a single permitting action, the provisions require that compliance shall be achieved no later than five years from the date of permit issuance, reissuance or modification, and no later than ten years after the adoption or interpretation of an applicable standard, whichever is the shorter period of time. In the case of a TMDL adopted as a single permitting action, a compliance schedule of greater than five years from the date of permit issuance, reissuance or modification may be granted, but the compliance schedule must be as short as possible as determined in the TMDL support document, and may only be used when implementing a new, revised or newly interpreted water quality standard. To document the need for and justify the duration of any such compliance schedule, a discharger must submit the following information, at a minimum: (1) the results of a diligent effort to quantify pollutant levels in the discharge and the sources of the pollutant(s) in the waste stream; (2) documentation of source control efforts currently underway or completed, including compliance with any pollution prevention programs that have been established; (3) a proposed schedule for additional source control measures or waste treatment; (4) the highest discharge quality that can reasonably be achieved until final compliance is attained; and (5) a demonstration that the proposed schedule is as short as possible, taking into account economic, technical and other relevant factors. The need for additional information and analyses will be determined by the Regional Board on a case-by-case basis. s 3939.4. Total Maximum Daily Load for Bacteria at Marina del Rey Mothers' Beach and Back Basins. On August 7, 2003, the Los Angeles Regional Water Quality Control Board (Regional Board), adopted Resolution No. 2003-012 amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revised the Basin Plan by incorporating a total maximum daily load for bacteria at Marina del Rey Mothers' Beach and back basins. The regulatory provisions are added to Chapter 7 of the Water Quality Control Plan. Numeric targets for the TMDL are expressed as days of exceedance of bacteria objectives. The implementation plan for this TMDL stipulates that: No days of exceedance are permitted at any monitoring location during the summer dry-weather season (April 1 to October 31) and the rolling 30-day geometric mean limits must be met at all times; a maximum of three days of exceedance is permitted for the winter dry-weather season (November 1 to March 31), and the rolling 30-day geometric mean limits must be met at all times. Some monitoring locations are allocated fewer than three allowable exceedance days in order to maintain existing water quality required by State and federal antidegradation provisions; a maximum of seventeen days of exceedance is permitted during the wet-weather season (defined as days with 0.1 inch or more of rain and the three days following the rain event) and the rolling 30-day geometric mean limits must be met at all times. Some monitoring locations are allocated fewer than seventeen allowable exceedance days in order to maintain existing water quality as required by State and federal antidegradation provisions. Urban runoff to Marina del Rey Harbor is regulated as a point source under the Los Angeles County Municipal Storm Water National Pollutant Discharge Elimination Systems (NPDES) Permit (MS4), the California Department of Transportation Storm Water Permit, and the General Construction and Industrial Storm Water Permits. Nonpoint sources are given load allocations of zero days of allowable exceedances for each time period. The load allocation for the rolling 30-day geometric mean for nonpoint sources is also zero days of allowable exceedances. s 3939.5. Suspension of Recreational Beneficial Uses in Engineered Channels During Unsafe Wet Weather Conditions. On July 10, 2003, the Los Angeles Regional Water Quality Control Board (Regional Board), adopted Resolution No. 2003-010 amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revised the Basin Plan by suspending the recreational beneficial uses in engineered channels during unsafe wet weather conditions, and creating a new Table 2-1a "Recreational Beneficial Uses of Inland Surface Waters," which designates the 39 water body segments to which the High Flow Suspension would apply. The following text is added to Chapter 2 of the Water Quality Control Plan: "The High Flow Suspension shall apply to water contact recreational activities associated with the swimmable goal as expressed in the federal Clean Water Act section 101(a)(2) and regulated under the REC-1 use, non-contact water recreation involving incidental water contact regulated under the REC-2 use, and the associated bacteriological objectives set to protect those activities. Water quality objectives set to protect (1) other recreational uses associated with the fishable goal as expressed in the federal Clean Water Act section 101(a)(2) and regulated under the REC-1 use and (2) other REC-2 uses (e.g., uses involving the aesthetic aspects of water) shall remain in effect at all times for waters where the (ad) footnote appears in Table 2-1a. The High Flow Suspension shall apply on days with rainfall greater than or equal to 1/2 inch and the 24 hours following the end of the 1/2-inch or greater rain event, as measured at the nearest local rain gauge, using local Doppler radar, or using widely accepted rainfall estimation methods. The High Flow Suspension only applies to engineered channels, defined as inland, flowing surface water bodies with a box, V-shaped or trapezoidal configuration that have been lined on the sides and/or bottom with concrete. The water bodies to which the High Flow Suspension applies are identified in Table 2-1a in the column labeled "High Flow Suspension". In Chapter 2, a new table is added, Table 2-1a "Recreational Beneficial Uses of Inland Surface Waters" following Table 2-1 "Beneficial Uses of Inland Surface Waters". s 3939.6. A Total Maximum Daily Load for Nitrogen Compounds in the Santa Clara River. Los Angeles Regional Water Quality Control Board (Regional Board) Resolution No. 2003-011, adopted on August 7, 2003 by the Regional Board, modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region (Basin Plan) by (1) revising the Table of Contents, (2) adding introductory text for Chapter 7 (Total Maximum Daily Loads), and (3) establishing a Total Maximum Daily Load (TMDL) for nitrogen compounds in the Santa Clara River. The TMDL specifies concentration-based targets for ammonia, nitrate, nitrite, and combined nitrate and nitrite. The TMDL includes a margin of safety with both implicit and explicit components. Numeric targets will primarily be achieved by limiting the amount of nitrogen compounds discharged from four major permitted wastewater treatment plants (Saugus Water Reclamation Plant (WRP), Valencia WRP, Fillmore Publicly Owned Treatment Work (POTW), and Santa Paula POTW. These major point sources are assigned wasteload allocations for ammonia, nitrite, nitrate, and combined nitrite and nitrate. At the Regional Board's discretion, the Saugus and Valencia WRPs may be allowed higher interim loads for nitrate, nitrite, and combined nitrate and nitrite for a period as short as possible, but not to exceed eight years from the effective date of the TMDL. The Fillmore and Santa Paula POTWs may be allowed higher interim loads for combined ammonia, nitrate and nitrite for a period also not to exceed eight years after the effective date of the TMDL. Receiving water monitoring is required weekly of these major point sources. Minor point sources (including stormwater sources) in Reaches 3 and 7 are also assigned concentration-based wasteload allocations for ammonia and combined nitrite and nitrate. Wasteload allocations for minor point sources will be implemented through effluent limits or Best Management Practices (BMPs) for stormwater. Load allocations for nonpoint sources for combined ammonia, nitrite, and nitrate are implemented through State Water Resources Control Board Management Practices. The County Sanitation District of Los Angeles County (CSDLAC) must submit the results from a water effects ratio study for ammonia when the TMDL takes effect. Within one year after the effective date of the TMDL, the following workplans must be submitted to the Regional Board for approval: (1) a workplan for estimating nitrogen loading from stormwater sources which includes triggers for conducting source identification and implementing BMPs must be submitted by affected MS4 (municipal separate storm sewer systems) permittees; (2) a workplan for monitoring nitrogen-related effects and evaluate progress in meeting targets must be submitted by affected major National Pollutant Discharge Elimination System permittees; and (3) a special studies workplan to evaluate site-specific objectives for nitrate must be submitted by CSDLAC. If monitoring and study results indicate it is appropriate, the Regional Board will consider adopting site-specific objectives for ammonia within one year after the effective date of the TMDL, and site-specific objectives for nitrate, and combined nitrite and nitrate within four years after the effective date of the TMDL. If site-specific objectives are adopted, the TMDL will be revised through a Basin Plan amendment. Five years after the effective date of the TMDL, the Regional Board will consider whether the numeric targets and wasteload allocations specified in the TMDL are sufficient to protect the Santa Clara River from nutrient effects of discharged nitrogen compounds or whether the TMDL must be revised through a Basin Plan amendment. s 3939.7. A Total Maximum Daily Load for Nitrogen Compounds and Related Effects in the Los Angeles River and its Tributaries. Los Angeles Regional Water Quality Control Board (Regional Board) Resolution No. 03-009, adopted on July 10, 2003 by the Regional Board, modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region (Basin Plan) by (1) revising the Table of Contents, (2) adding introductory text for Chapter 7 (Total Maximum Daily Loads), and (3) establishing a Total Maximum Daily Load (TMDL) for nitrogen compounds and related effects in the Los Angeles River and its tributaries. The TMDL specifies concentration-based targets for ammonia, nitrate, nitrite, and combined nitrate and nitrite, which must be fully attained five years after the effective date of the TMDL. The TMDL includes a margin of safety with both implicit and explicit components. Numeric targets will primarily be achieved by limiting the amount of nitrogen compounds discharged from three major wastewater treatment plants (Donald C. Tillman Water Reclamation Plant, Los Angeles-Glendale Water Reclamation Plant, and Burbank Water Reclamation Plant). To provide these major permitted discharges time to meet wasteload allocations, higher interim limits will be allowed for ammonia and combined nitrite and nitrate for a period of 3.5 years from the effective date of the TMDL. Compliance with the separate nitrate and nitrite wasteload allocations is not required during this interim period. Minor permitted point source dischargers are also assigned wasteload allocations, which must be met immediately. Load allocations for nonpoint sources may be developed if it is determined that they are necessary after wasteload allocations have been implemented. Workplans for monitoring nitrogen compounds and related effects must be submitted by MS4 (municipal separate storm sewer systems) permittees and major National Pollutant Discharge Elimination System permittees within one year after the effective date of the TMDL. A special studies workplan to evaluate site-specific objectives, seasonal allocations, and point of compliance must be submitted by the City of Los Angeles within one year after the effective date of the TMDL, and the results of the studies within two and a half years after the effective date of the TMDL. Three and a half years after the effective date of the TMDL, if monitoring and study results indicate it is appropriate, the Regional Board will consider adopting site specific objectives for ammonia, nitrate, and nitrite and revising the TMDL. Five years after the effective date of the TMDL, the Regional Board will consider whether the numeric targets and wasteload allocations specified in the TMDL are sufficient to protect the Los Angeles River and its tributaries from the nutrient effects of discharged nitrogen compounds or whether the TMDL must be revised. s 3939.8. Amendment to the Water Quality Control Plan for the Los Angeles Region to Revise the Water Quality Objective for Chloride in the Lower Santa Clara River. This amendment to the Los Angeles Water Quality Control Plan (Basin Plan) raises the water quality objective for chloride in the Lower Santa Clara River between A Street, Fillmore, and Freeman Diversion Dam near Saticoy from 80 mg/L to 100 mg/L. This change appears in the Basin Plan in Table 3-8, Water Quality Objectives for Selected Constitutents in Inland Surface Waters under "chloride" in Section 3 of the Basin Plan. s 3939.9. Ammonia Objectives for Inland Surface Waters Not Characteristic of Freshwater. On March 4, 2004 the Los Angeles Regional Water Quality Control Board (Regional Board), adopted Resolution No. 2004-022 amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revised the Basin Plan by updating the ammonia objectives for inland surface waters not characteristic of freshwater such that they are consistent with the U.S. EPA "Ambient Water Quality Criteria for Ammonia (Saltwater)-1989." The amendment revised the regulatory provisions of the Basin Plan by adding language to Chapter 3 "Water Quality Objectives." For inland surface waters not characteristic of freshwater, the proposed objectives are a 4-day average concentration of un-ionized ammonia of 0.035 mg/L and a one-hour average concentration of un-ionized ammonia of 0.233 mg/L. The proposed objectives are fixed concentrations of un-ionized ammonia, independent of pH, temperature, or salinity. The proposed amendment includes an implementation procedure to convert un-ionized ammonia objectives to total ammonia effluent limits. The proposed amendment also simplifies the implementation procedures for translating ammonia objectives into effluent limits in situations where a mixing zone has been authorized by the Regional Board. Finally, the proposed amendment revises the implementation procedure for determining saltwater, brackish or freshwater conditions, to be consistent with the proposed objectives. The proposed objectives will apply only to inland surface waters not characteristic of freshwater (including enclosed bays, estuaries and wetlands) and do not impact the Ammonia Water Quality Objectives for ocean waters contained in the California Ocean Plan. s 3939.10. Total Maximum Daily Load for Chloride in the Upper Santa Clara River. The Los Angeles Regional Water Quality Control Board (Regional Board) adopted under Resolution Nos. 02-018, 03-008, and 04-004 a Total Maximum Daily Load (TMDL) for Chloride in the Upper Santa Clara River. The TMDL specifies concentration-based targets for chloride, which must be fully attained 13 years after the effective date of the TMDL. The TMDL allocated interim wasteloads for chloride to the County Sanitation Districts of Los Angeles County's (Districts') Saugus and Valencia Water Reclamation Plants. It requires the Districts to conduct special studies to evaluate the appropriate threshold for the protection of sensitive agricultural supply use and Endangered Species Protection, determine the interaction between surface water and groundwater as it may affect the loading of chloride and its linkage to surface water quality, determine Site-Specific Objectives for Chloride for Sensitive Agriculture, develop an Anti-Degradation Analysis for Revision of Chloride Objective by Site-Specific Objectives, and develop a pre-planning report on conceptual compliance measures to meet different hypothetical final wasteload allocations. The Regional Board will re-evaluate the implementation schedule 12 months after the effective date of the TMDL and, if necessary, 9 years after the effective date of the TMDL. s 3939.11. Revising Interim Ammonia Effluent Limits Contained Within a Total Maximum Daily Load for Nitrogen Compounds and Related Effects in the Los Angeles River and Its Tributaries. Los Angeles Regional Water Quality Control Board (Regional Board) adopted Resolution No. 03-016 on December 4, 2003, which modified regulatory provisions of the Water Quality Control Plan for the Los Angeles Region (Basin Plan) by revising interim ammonia effluent limits for the D.C. Tillman and Los Angeles-Glendale Water Reclamation Plants (WRPs) contained within the Total Maximum Daily Load (TMDL) for nitrogen compounds and related effects for the Los Angeles River. The thirty-day average and daily maximum interim limits for total ammonia as nitrogen for the Donald C. Tillman WRP were changed from 21.0 and 21.7 milligrams per liter (mg/L), respectively, to 20.5 and 24.7 mg/L. For the Los Angeles-Glendale WRP, the thirty-day average and daily maximum interim limits for total ammonia as nitrogen were changed from 16.5 and 19.4 mg/L, respectively, to 18.8 and 24.2 mg/L. s 3939.12. Total Maximum Daily Load for Bacteria at Los Angeles Harbor. On July 1, 2004, the Los Angeles Regional Water Quality Control Board (Regional Board) adopted Resolution No. 2004-011 amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revised the Basin Plan by incorporating a Total Maximum Daily Load (TMDL) for bacteria at Los Angeles Harbor (Inner Cabrillo Beach and Main Ship Channel, including the Inner Harbor). The regulatory provisions are added to Chapter 7 of the Water Quality Control Plan. Numeric targets for this TMDL are expressed as days of exceedance of bacteria objectives contained in the Basin Plan. These targets apply to three seasons: summer dry-weather (April 1 to October 31), winter dry-weather (November 1 to March 31), and wet-weather (days with 0.1 inch or more of rain and the three days following the rain event); and to monitoring sites specified in the Basin Plan. For nonpoint sources (load allocations), single sample bacterial densities in the Main Ship Channel for any season are zero days of allowable exceedance, and the rolling 30-day geometric mean for any season or monitoring site is zero days of allowable exceedance. Single sample bacterial densities for summer dry-weather at Inner Cabrillo Beach are zero days of allowable exceedance. Single sample exceedance days for winter dry-weather and wet-weather seasons for specific monitoring sites at Inner Cabrillo Beach are presented in Basin Plan Table 7-11.2. The rolling 30-day geometric mean for any season or monitoring site at Inner Cabrillo Beach is zero days of allowable exceedance. For point sources (wasteload allocations), single sample bacterial densities for summer dry-weather in the Main Ship Channel are zero days of allowable exceedance. Single sample exceedance days for winter dry-weather and wet-weather seasons for specific monitoring sites in the Main Ship Channel are presented in Basin Plan Table 7-11.2. The rolling 30-day geometric mean for any season or monitoring site in the Main Ship Channel is zero days of allowable exceedance. Single sample bacterial densities at Inner Cabrillo Beach for any season are zero days of allowable exceedance, and the rolling 30-day geometric mean for any season or monitoring site at Inner Cabrillo Beach is zero days of allowable exceedance. Discharges from general National Pollutant Discharge Elimination System (NPDES) permits, general industrial storm water permits, and general construction storm water permits are not expected to be a significant source of bacteria. Therefore, the wasteload allocations for these discharges are zero (0) days of allowable exceedances for all three time periods and for the single sample limits and the rolling 30-day geometric mean. Any future enrollees under a general NPDES permit, general industrial storm water permit, or general construction storm water permit within the watershed will also be subject to a wasteload allocation of zero days of allowable exceedances. s 3939.13. Revision of a Total Maximum Daily Load for Trash in the Ballona Creek and Wetland. On March 4, 2004, the Los Angeles Regional Water Quality Control Board adopted Resolution No. 2004-023 amending the Total Maximum Daily Load for Trash in the Ballona Creek and Wetland contained within the Water Quality Control Plan for the Los Angeles Region. The amendment revises the definition of "full-capture device" and would allow for both single devices and treatment trains or "systems." Full capture devices and systems must be sized to handle the flow from a one-year, one-hour storm. The amendment provides the equation and isohyetal map to be used for sizing the full capture devices and systems. s 3939.14. Revised Recreational Water Quality Standards for Ballona Creek Reaches 1 and 2. State Water Resources Control Board Resolution No. 2005-0015, adopted on January 20, 2005, amended the Water Quality Control Plan for the Los Angeles Region by: (1) dedesignating Water Contact Recreation (REC-1) associated with swimming-related activities as a potential use from "Ballona Creek" (Reach 1) and "Ballona Creek to Estuary" (Reach 2); (2) designating Limited Water Contact Recreation (LREC-1) as an existing use for Reach 2; (3) adding a definition for LREC-1; (4) clarifying the dividing line between Reach 1 and Reach 2; and (5) adding water quality objectives for bacteria that apply to LREC-1, including geometric mean and single sample limits for E-coli and fecal coliform. s 3939.15. Total Maximum Daily Load for Bacteria in Malibu Creek. This Basin Plan amendment establishes a Total Maximum Daily Load (TMDL) for bacteria in Malibu Creek and Lagoon for summer (April 1 to October 31) dry weather, winter (November 1 to March 31) dry weather and wet-weather days. Wet-weather days are defined as any day receiving 0.1 inch of rain or more and three days thereafter. The TMDL establishes the loading capacity of the Malibu Creek and Lagoon as the maximum densities of the four bacterial indicators (total coliform, e. coli, fecal coliform, and enterococcus) as specified in the Basin Plan as bacteriological water quality objectives for fresh and marine water having a water contact beneficial use designation. This TMDL will be implemented in three phases over a ten-year period. Within three years of the effective date of the TMDL, compliance with the allowable number of summer dry-weather exceedance days and the rolling 30-day geometric mean targets must be achieved. In response to a written request from the responsible jurisdiction or responsible agency, the Executive Officer of the Los Angeles Regional Water Quality Board (Los Angeles Water Board) may extend the compliance date for the summer dry- weather allocations from three up to six years from the effective date of this TMDL. Within six years of the effective date of the TMDL, compliance with the allowable number of winter dry-weather exceedance days and the rolling 30-day geometric mean targets must be achieved. Within ten years of the effective date of the TMDL, compliance with the allowable number of wet-weather exceedance days and rolling 30-day geometric mean targets must be achieved. The Los Angeles Water Board may extend the wet-weather compliance date up to July 15, 2021 at its discretion, by adopting a subsequent Basin Plan amendment that complies with applicable law. The regulatory mechanisms to implement the TMDL may include, but are not limited to, the Los Angeles County Municipal Storm Water National Pollutant Discharge Elimination System (NPDES) Permit, Ventura County Municipal Storm Water NPDES Permit, the Caltrans Storm Water Permit, waste discharge requirements (WDRs), Memorandum of Understanding (MOUs), revised MOUs, general NPDES permits, general industrial storm water permits, general construction storm water permits, and the authority contained in Sections 13225, 13263 and 13267 of the Water Code. Each NPDES permit assigned a Waste Load Allocation (WLA) shall be reopened or amended at reissuance, in accordance with applicable laws, to incorporate the applicable WLA as a permit requirement. The amendment requires that responsible jurisdictions and responsible agencies provide the following submittals to the Executive Officer within the specified time after the effective date of the TMDL: (1) within 120 days, a comprehensive bacteria water quality monitoring plan for the Malibu Creek Watershed, (2) within one year, a written report outlining how each responsible agency intends to cooperatively achieve compliance with the TMDL, and a written report detailing the rationale and criteria used to identify high-risk areas where on-site systems have a potential to impact surface waters in the Malibu Creek Watershed, and (3) within two years, a reference watershed study, and a report quantifying the bacteria loading from birds to the Malibu Lagoon. Within three years after the effective date of the TMDL, the Los Angeles Water Board must re-consider the TMDL to: (1) consider a natural source exclusion for bacteria loading from birds in the Malibu Creek Lagoon if all anthropogenic sources to the Lagoon have been controlled, (2) reassess the allowable winter dry-weather and wet-weather exceedance days based on additional data on bacterial indicator densities, and an evaluation of site-specific variability in exceedance levels to determine whether existing water quality is better than water quality at the reference watershed, (3) reassess the allowable winter dry-weather and wet-weather exceedance days based on a re-evaluation of the selected reference watershed and consideration of other reference watersheds that may better represent reaches of the Malibu Creek and Lagoon, (4) consider whether the allowable winter dry-weather and wet-weather exceedance days should be adjusted annually dependent on the rainfall conditions and an evaluation of natural variability in exceedance levels on the reference system(s), (5) re-evaluate the reference year used in the calculation of allowable exceedance days, and (6) re-evaluate whether there is a need for further clarification or revision of the geometric mean implementation provision. s 3939.16. A Total Maximum Daily Load for Toxicity, Chlorpyrifos, and Diazinon in Calleguas Creek, Its Tributaries, and Mugu Lagoon. California Regional Water Quality Control Board (Regional Board) Resolution No. R4-2005-009 adopted on July 7, 2005 by the Regional Board, modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region (Basin Plan) by (1) revising the Table of Contents, (2) adding introductory text for Chapter 7 (Total Maximum Daily Loads), and (3) establishing a Total Maximum Daily Load (TMDL) for Toxicity, Chlorpyrifos, and Diazinon in Calleguas Creek, its Tributaries, and Mugu Lagoon. The Basin Plan amendment specifies final wasteload allocations (WLAs) for point source discharges and load allocations (LAs) for nonpoint source discharges of chlorpyrifos and diazinon. The Basin Plan also specifies WLAs and LAs for toxicity. The TMDL establishes an implementation plan for reducing toxicity, chlorpyrifos, and diazinon loads from point-sources and nonpoint-sources which includes a monitoring program, special studies, and a compliance schedule to meet final WLAs in 2 years after the effective date of the TMDL for point sources and final LAs in 10 years after the effective date of the TMDL for nonpoint sources. s 3939.17. A Total Maximum Daily Load for Organochlorine Pesticides, Polychlorinated Biphenyls, and Siltation in Calleguas Creek, its Tributaries, and Mugu Lagoon. On July 7, 2005, the Los Angeles Regional Water Quality Control Board adopted Resolution No. R4-2005-010, amending the Water Quality Control Plan for the Los Angeles Region by establishing a Total Maximum Daily Load (TMDL) for organochlorine (OC) pesticides, polychlorinated biphenyls (PCBs), and siltation in Calleguas Creek, its tributaries, and Mugu Lagoon. The TMDL set numeric concentration-based targets for OC pesticides and PCBs in water, sediment, and/or fish tissue to ensure protection of designated beneficial uses. The specific pollutants addressed are aldrin, chlordane, dacthal, dichlorodiphenyldicloroethane (DDD), dichlorodiphenyldicloroethelyene (DDE), dichlorodiphenyltrichloroethane (DDT), dieldrin, endosulfan I, endosulfan II, endrin, hexachlorocyclohexane (alpha, beta, delta, and gamma BHC), heptachlor, heptachlor epoxide, PCBs, and toxaphene. Water column targets are derived from California Toxics Rule (CTR) water quality chronic criteria for protection of aquatic life. Fish tissue targets are derived from CTR human health criteria for consumption of organisms. Sediment targets are derived from National Oceanographic and Atmospheric Administration sediment quality guidelines for fresh and marine waters. This TMDL further requires an annual reduction in the import of silt of 5,200 tons per year to Mugu Lagoon and preservation of 1,400 acres of existing aquatic habitat in Mugu Lagoon. Targets will be met by limiting discharges from point and nonpoint sources of pollutants. Interim and final wasteload allocations assigned to point source dischargers will be implemented through National Pollution Discharge Elimination System (NPDES) permits. The TMDL establishes wasteload allocations for five major wastewater treatment plants (Hill Canyon Waste Water Treatment Plant, Simi Valley Water Quality Control Plant, Ventura County (Moorpark) Water Treatment Plant, Camarillo Water Reclamation Plant, and Camrosa Water Reclamation Plant), storm water permittees (California Department of Transportation, general construction, general industrial, and municipal permittees), and to minor point sources. Interim and final load allocations for nonpoint sources will be implemented through the State's Nonpoint Source Pollution Control Program. Sediment-based load allocations will be measured as an in-stream annual average at the base of each sub-watershed. A Conditional Waiver for Irrigated Lands and/or Agricultural Water Quality Management Plans will be developed to implement load allocations for agricultural dischargers, taking into account TMDL-required studies to assess the effectiveness of Management Practices for reduction of pollutants from agricultural operations. Special studies and/or monitoring will be conducted as part of this TMDL. The Los Angeles Regional Water Quality Control Board has committed to reconsidering the TMDL, if necessary, based on the collected data or other relevant information. Final wasteload and load allocations must be achieved within 20 years of the effective date of the TMDL. s 3939.18. A Total Maximum Daily Load for Toxic Pollutants in Sediment in Ballona Creek Estuary. On July 7, 2005, the Los Angeles Regional Water Quality Control Board adopted Resolution No. R05-008, amending the Water Quality Control Plan for the Los Angeles Region by establishing a Total Maximum Daily Load (TMDL) to reduce toxic pollutants in sediment in Ballona Creek Estuary (Estuary). The TMDL sets numeric concentration-based targets for cadmium, copper, lead, silver, zinc, chlordane, total dichlorodiphenyltrichloroethane (DDT) isomers and metabolites, total polychlorinated biphenyls (PCBs), and total polynuclear aromatic hydrocarbons (PAHs) in the sediment for the Estuary. The targets are based on Effects Range-Low sediment quality guidelines compiled by the National Oceanic and Atmospheric Administration and will be achieved primarily by limiting the amount of pollutants associated with suspended sediment in storm water runoff. The TMDL will mainly be implemented through National Pollutant Discharge Elimination System (NPDES) storm water permits, including the Los Angeles County Municipal Separate Storm Sewer Systems permit, the California Department of Transportation (Caltrans) permit, the general industrial and construction permits, and other NPDES permits for low-volume, intermittent, non-stormwater discharges, and through the authority vested in the Executive Officer by Water Code section 13267. The TMDL requires the general industrial and construction storm water permittees to achieve assigned wasteload allocations within seven years and nine years of the effective date of the TMDL, respectively. The implementation schedule for the municipal and Caltrans permittees consists of a phased approach, with wasteload allocations to be achieved in prescribed percentages of the watershed, with total compliance to be achieved within fifteen years of the effective date of the TMDL. The TMDL requires the municipal and Caltrans storm water permittees to submit a coordinated monitoring plan within one year of the effective date of the TMDL and an implementation plan within five and a half years of the effective date of the TMDL. The monitoring plan must include bioaccumulation testing of fish and mussel tissue and sediment toxicity testing. The TMDL allows for special studies, which are due within five years of the effective date of the TMDL, to refine source assessments, provide better estimates of loading capacity, and optimize implementation efforts. The TMDL specifies that within six months of the effective date of a statewide adopted sediment quality objectives and implementation policy, the Los Angeles Regional Water Quality Control Board will re-assess the numeric targets and wasteload allocations for consistency with these statewide objectives. The TMDL also specifies that within six years of its effective date, the Los Angeles Regional Water Quality Board shall reconsider the waste load allocations and implementation schedule based on the results of special studies. s 3939.19. Total Maximum Daily Load for Metals for the Los Angeles River and its Tributaries. On June 2, 2005, the Los Angeles Regional Water Quality Control Board (Los Angeles Water Board) adopted Resolution No. R05-006, amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). This Basin Plan amendment establishes a Total Maximum Daily Load (TMDL) to reduce metals in the Los Angeles River and its Tributaries for dry weather (maximum daily flow in the River less than 500 cubic feet per second) and wet weather (maximum daily flow in the River equal to or greater than 500 cubic feet per second). The TMDL: (1) sets dry- and wet-weather numeric targets to achieve California Toxics Rule (CTR) numeric water quality criteria for metals; (2) establishes a dry-weather loading capacity for a single critical flow to meet the dry-weather numeric target; (3) establishes a wet-weather loading capacity that varies with flow in order to meet wet-weather numeric targets; and (4) allocates the dry- and wet-weather loading capacities among point and nonpoint sources of metals, with the majority of the dry-weather allocation to the three largest publicly owned treatment works (POTWs) and the majority of the wet-weather allocation to storm water sources. The TMDL identifies the National Pollutant Discharge Elimination System (NPDES) permits for three POTWs, the Los Angeles County and Long Beach municipal storm water NPDES permits, the Caltrans storm water NPDES permit, the general industrial and construction storm water NPDES permits, "other NPDES permits" for low-volume, intermittent, non-stormwater discharges, and the authority vested in the Executive Officer by Water Code section 13267 as the principal regulatory mechanisms to implement the TMDL. The TMDL requires the three POTWs to achieve dry- and wet-weather wasteload allocations at the time of permit issuance, renewal, or re-opener, or within 10 years of the effective date of the TMDL if advanced treatment is required to reduce metals loads. The TMDL requires the general industrial and construction storm water permittees to achieve dry-weather wasteload allocations at the time of permit issuance, renewal, or re-opener; it requires the general industrial and construction storm water permittees to achieve wet-weather wasteload allocations within 10 years and 9 years of the effective date of the TMDL, respectively. The TMDL requires the municipal and Caltrans storm water permittees to achieve wasteload allocations in prescribed percentages of the watershed, achieving dry-weather allocations in the entire watershed within 18 years and wet-weather allocations in the entire watershed within 22 years. The TMDL identifies five jurisdictional groups to coordinate implementation of the municipal storm water allocations and provides that within 15 months of its effective date, each jurisdictional group must submit a coordinated monitoring plan and within 4 1/2 years of its effective date, each jurisdictional group must submit an implementation plan. The TMDL allows for special studies, such as site-specific toxic effects and natural source studies, which are due within four years of the effective date of the TMDL. The TMDL specifies that within five years of its effective date, the Los Angeles Water Board shall reconsider the wasteload allocations and implementation schedule based on the results of special studies. s 3939.20. Total Maximum Daily Load for Metals for Ballona Creek. On July 7, 2005, the Los Angeles Regional Water Quality Control Board (Los Angeles Water Board) adopted Resolution No. R05-007, amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). This Basin Plan amendment establishes a Total Maximum Daily Load (TMDL) to reduce metals in Ballona Creek for dry weather (maximum daily flow in the creek less than 40 cubic feet per second) and wet weather (maximum daily flow in the creek equal to or greater than 40 cubic feet per second). The TMDL: (1) sets dry- and wet-weather numeric targets to achieve California Toxics Rule (CTR) numeric water quality criteria for metals; (2) establishes a dry-weather loading capacity for a single critical flow to meet dry-weather numeric targets; (3) establishes a wet-weather loading capacity that varies with flow in order to meet wet-weather numeric targets; and (4) allocates the dry- and wet-weather loading capacities among point and nonpoint sources of metals, with the majority of the capacity allocated to storm water sources. The TMDL identifies the Los Angeles County municipal storm water National Pollutant Discharge Elimination System (NPDES) permit, the Caltrans storm water NPDES permit, the general industrial and construction storm water NPDES permits, and "other NPDES permits" for low-volume, intermittent, non-stormwater discharges, and the authority vested in the Executive Officer by Water Code section 13267 as the principal regulatory mechanisms to implement the TMDL. The TMDL requires the general industrial and construction storm water permittees to achieve dry-weather wasteload allocations at the time of permit issuance, renewal, or re-opener; it requires the general industrial and construction storm water permittees to achieve wet-weather wasteload allocations within 10 years and 9 years of the effective date of the TMDL, respectively. The TMDL requires the municipal and Caltrans storm water permittees to achieve wasteload allocations in prescribed percentages of the watershed, achieving dry-weather allocations in the entire watershed within 10 years and wet-weather allocations in the entire watershed within 15 years. The TMDL requires the municipal and Caltrans storm water permittees to submit a coordinated monitoring plan within one year of the effective date of the TMDL and an implementation plan within 4 1/2 years of the effective date of the TMDL. The TMDL allows for special studies, such as source assessment and metals partitioning studies, which are due within four years of the effective date of the TMDL. The TMDL specifies that within five years of its effective date, the Los Angeles Water Board shall reconsider the wasteload allocations and implementation schedule based on the results of special studies. s 3939.21. TMDL for Toxic Pollutants in Marina del Rey Harbor. On October 6, 2005, the Los Angeles Regional Water Quality Control Board (Regional Water Board), adopted Resolution No. 2005-012, amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). This Basin Plan amendment establishes a Total Maximum Daily Load (TMDL) to reduce toxic pollutants in Marina del Rey Harbor. The TMDL: (1) sets numeric targets for sediments based on Effects Range-Low sediment quality guidelines (ERLs) compiled by the National Oceanic and Atmospheric Administration; (2) sets numeric water quality and fish tissue targets based on standards established by the California Toxics Rule (CTR), for the protection of human health; (3) establishes a loading capacity to meet numeric targets for sediment based on the average annual total suspended solids loading to the harbor; and (4) allocates the loading capacities among point and nonpoint sources of toxic pollutants, with the majority of the capacity allocated to storm water sources. The TMDL identifies the Los Angles County municipal storm water National Pollutant Discharge Elimination System (NPDES) permit, the Caltrans storm water NPDES permit, the general industrial and construction storm water NPDES permits, and "other NPDES permits" for low-volume, intermittent, non-stormwater discharges, and the authority vested in the Executive Officer by Water Code section 13267 as the principal regulatory mechanisms to implement the TMDL. The TMDL requires the general industrial and construction storm water permittees to achieve waste load allocations for sediment within 7 years and 9 years of the effective date of the TMDL, respectively. The TMDL requires the municipal and Caltrans storm water permittees to achieve waste load allocations for sediment in prescribed percentages of the watershed, achieving allocations in the entire watershed within 10 years. However, if an integrated resources approach is used, this deadline may be extended up to 5 years - pursuant to Regional Water Board approval. The TMDL requires the municipal and Caltrans storm water permittees to submit a coordinated monitoring plan within one year of the effective date of the TMDL and an implementation plan within 5 1/2 years of the effective date of the TMDL. The monitoring plan must include bioaccumulation testing of fish tissue, and sediment toxicity testing. The TMDL allows for special studies, which are due within five years of the effective date of the TMDL, to refine source assessments, provide better estimates of loading capacity, and optimize implementation efforts. The TMDL specifies that within 6 months of the effective date of the State Water Resources Control Board (State Water Board) adopted sediment quality objectives and implementation policy, the Regional Water Board will reassess the numeric targets and waste load allocations for consistency with the State Water Board adopted sediment quality objectives. The TMDL also specifies that within six years of its effective date, the Regional Water Board shall reconsider the waste load allocations and implementation schedule based on the results of special studies. With regard to existing sediment contamination by toxic pollutants, the TMDL also stipulates that the Executive Officer shall issue appropriate investigatory and clean up and abatement orders to address toxicity hotspots within sediments identified as a result of any investigation. s 3939.22. Basin Plan Amendment to Revise the Early Life Stage Implementation Provision of the Inland Surface Water Ammonia Objectives for Freshwater. On December 1, 2005 the Los Angeles Regional Water Quality Control Board (Los Angeles Water Board) adopted Resolution No. 2005-014, amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revises Chapter 3 "Water Quality Objectives" to revise the Early Life Stage (ELS) implementation provision of the inland surface water ammonia objectives for freshwater. This amendment applies the "ELS absent" 30-day average objective in major water bodies that do not have fish species that reproduce below 15 degrees Celsius. It is below 15 degrees Celsius that the objective varies on the basis of the presence or absence of ELS. The amendment also applies the "ELS absent" provision where physical conditions preclude reproduction and early development in significant numbers (even where fish species that reproduce below 15 degrees Celsius are present). The amendment applies the "ELS present" 30-day average objective to all other water bodies. Early life stages of fish are presumptively present and must be protected at all times of the year, unless the water body is listed in the table titled, "Water Bodies Subject to 30-day Average Objective Applicable to 'ELS absent' Condition" in the Basin Plan or unless a site-specific study justifies applying the ELS absent condition or a seasonal ELS present condition. Any change in the implementation provision for the ELS present/absent condition, including the assignment of water bodies, must be approved through the Basin Plan amendment process. If recent data and information are submitted to the Los Angeles Water Board that provide clear and convincing substantial evidence that the physical conditions of a water body listed in the table have changed due to restoration efforts such that the water body is "ELS present," the Los Angeles Water Board shall reconsider this implementation provision to ensure protection of ELS of fish in the water body. To justify the ELS absent provision, information must be presented regarding fish species distributions, spawning periods, nursery periods, and the duration of ELS found in the water body. Expert opinions from fisheries biologists and other scientists will be considered. Where it can be obtained, a consensus opinion from a diverse body of experts would carry significant weight in determining the presence or absence of the ELS. Information on water body temperature, including spatial, seasonal, and inter-annual variability will also be considered. The determination of when ELS are most likely not to be present under chronic toxic conditions that would affect the long-term success of the fish populations should include adequate scientific justification. The Los Angeles Water Board shall use the record supporting a Basin Plan amendment as the basis upon which to approve or disapprove changes to these implementation provisions for the 30-day average ammonia objective. The Los Angeles Water Board shall ensure that the record clearly explains all the factors and information considered in arriving at the determination. The Los Angeles Water Board shall consider and weigh the breadth and depth of scientific evidence in determining whether to remove the ELS specification of a water body. Where there is a site-specific ammonia objective for the water body and the water body is not identified as ELS absent due to physical characteristics of the water body, separate implementation provisions to protect ELS of fish may apply, since the temperature threshold at which ELS are more sensitive than invertebrates may change based on these site-specific conditions. The potential for seasonality for all ELS present water bodies will be considered before the ELS provision is applied to water bodies with a site-specific objective. Notwithstanding anything to the contrary herein, a watershed may have some reaches and tributaries with ELS present conditions and others with ELS absent conditions. Implementation actions to achieve applicable ammonia objectives must implement downstream objectives. s 3940. Revised Water Quality Control Plan for the Sacramento River and San Joaquin River Basins. The revised Water Quality Control Plan for the Sacramento River and San Joaquin River Basins, adopted 9 December 1994 by the Central Valley Regional Water Quality Control Board per Resolution No. 94-380 and approved by the State Water Resources Control Board 16 February 1995 per Resolution 95-12, modifies the regulatory provisions of the previous Water Quality Control Plan and its amendments as follows: (a) Water Body Definitions: Adds definitions for "ground water" and "ground water basin." (b) Beneficial Use Categories and Definitions: Add definitions for "Aquaculture," "Commercial and Sport Fishing," "Estuarine Habitat," "Marine Habitat," and "Preservation of Biological Habitats of Special Significance"; Revise beneficial use category definitions previously incorporated: Municipal and Domestic Supply" (MUN); Agricultural Supply", "Industrial Process Supply," "Ground Water Recharge," "Freshwater Replenishment," "Navigation", "Contract Water Recreation," "Non-contact Water Recreation," "Cold Freshwater Habitat," "Warm Freshwater Habitat," "Wildlife Habitat," "Rare, Threatened, and Endangered Species," "Migration of Aquatic Organisms," and "Spawning, Reproduction, and/or Early Development." (c) Tributary Rule: Revise tributary rule to state that beneficial uses of a specifically identified waterbody generally applies to its tributary streams, but on a case-by-case basis the Regional Board may determine that a beneficial use designation does not apply to the entire body of water. (d) Inland Surface Waters: (1) Revise chemical constituents objective, clarify that metal objectives are dissolved concentrations, and delete disapproved selenium objectives for San Joaquin River, Salt Slough, and Mud Slough; (2) Provide for "appropriate averaging periods" to determine compliance with pH objective, temperature objective, turbidity objective; (3) Revise radioactivity objective; (4) Revise Toxicity objective to clarify how Regional Board makes determinations when combinations of toxic chemicals are present; (5) Add turbidity objective for surface waters with natural turbidity less than 5 NTUs. (e) Ground Waters: (1) Designate all ground waters, unless otherwise designated, as suitable or potentially suitable for municipal and domestic water supply (MUN), agricultural supply (AGR), industrial service supply (IND), and industrial process supply (PRO); (2) Add criteria for making exceptions to beneficial use designations of agricultural supply (AGR) or industrial supply (IND or PRO); (3) Revise chemical constituents objective; (4) Add narrative objective for toxicity. (f) Wastewater Reuse Policy: Expand the existing "Disposal of Wastewater on Land Policy" to clarify implementation policy regarding State Water Board Resolution No. 77-1, "Statement of Policy with Respect to Water Reclamation in California." (g) Antidegradation: Add policy on implementation of State Water Board Resolution No. 68-16, "Statement of Policy with Respect to Maintaining High Quality of Water in California." (h) Water Quality Objectives: Add policy for application of water quality objectives to: clarify that objectives apply to all waters rather than at a point of compliance; clarify policy regarding designation of mixing zones; clarify that "background" represents an initial goal and describe how numerical limits are established in implementing a narrative water quality objective; and add method for determining when a combination of chemicals is assumed to present an unacceptable level of toxicological risk. (i) Contaminated Sites: Add policy for investigation and cleanup of contaminated sites. (j) Variances: Add authorization for short-term variances for vector and weed control, pest eradication, or fishery management. s 3941. Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins Specifically Authorizing Compliance Schedules in NPDES Permits for Achieving Water Quality Objectives or Effluent Limits Based on Objectives. The amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins, as adopted May 26, 1995 by the Central Valley Regional Water Quality Control Board, modifies the regulatory provisions of the previous Water Quality Control Plan as follows: Compliance Schedules -Specific authorization was added to allow compliance schedules in NPDES permits for achieving water quality objectives or effluent limits based on objectives. The amendment authorizes time schedules in NPDES permits only for water quality objects or criteria adopted after the effective date of the amendment. s 3942. Revised Water Quality Control Plan for the Tulare Lake Basin. The revised Water Quality Control Plan for the Tulare Lake Basin, adopted August 17, 1995 by the Central Valley Regional Water Quality Control Board per Resolution No. 95-208 and approved by the State Water Resources Control Board, November 16, 1995 per Resolution No. 95-86 modifies the regulatory provisions of the previous Water Quality Control Plan and its amendments as follows: (a) Introduction: adds definitions for "ground water" and "ground water basin"; clarifies waste discharge types; clarifies description of point and nonpoint discharges; describes regulatory direction on agricultural drainage water and evaporation ponds. (b) Existing and Potential Beneficial Uses: (1) Specifies that defined beneficial uses do not include all possible uses of water; (2) Adds definitions for "Migration of Aquatic Organisms," "Preservation of Biological Habitats of Special Significance," "Aquaculture," and "Navigation"; revises "Fish Spawning" and "Warm Freshwater Habitat" and other beneficial use category definitions for statewide consistency; (3) Clarifies policy on the applicability of the beneficial uses of a specifically identified water body to its tributary streams; (4) Adds criteria for making exceptions to the beneficial use designations of Agricultural Supply and Industrial Supply; (5) Adds surface water map dividing Tulare Lake Basin into hydrologic units: changes format of Table II-1 to reflect map. (c) Water Quality Objectives: (1) Clarifies how water quality objectives are to be achieved; provides for compliance within the shortest practicable time, not to exceed ten years, when immediate compliance is infeasible; explains policy for evaluating violations of water quality objectives formulated to preserve historic conditions; (2) Inland Surface Waters: (A) Adds narrative objective for unionized ammonia; (B) Chemical Constituents: specifies that waters shall not contain concentrations that adversely affect beneficial uses; identifies information that will be considered to evaluate compliance; revises maximum numeric concentrations for water designated Municipal and Domestic Supply; (C) Clarifies dissolved oxygen objective; (D) Provides for use of averaging periods in determining compliance with objectives for pH, Temperature and Turbidity; (E) Revises maximum numeric concentrations of pesticides and radioactivity for water designated Municipal and Domestic Supply; (F) Specifies that Toxicity objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances; identifies information that will be considered to evaluate compliance; (G) Changes method of determining Turbidity from Jackson Turbidity Units (JTU) to Nephelometric Turbidity Units (NTU). (3) Ground Waters: (A) Chemical Constituents: clarifies narrative objective; identifies information that will be considered to evaluate compliance; revises maximum numeric concentrations for water designated Municipal and Domestic Supply; (B) Revises maximum numeric concentrations of pesticides and radioactivity for water designated Municipal and Domestic Supply. (d) Implementation: (1) Provides a regulatory approach for discharges of agricultural subsurface drainage to evaporation basins; (2) Adds a monitoring program and minimum management practices to reduce drainage to the Lower Kings River; (3) Clarifies that animal confinement and related areas shall not create a nuisance; adds a 5-foot minimum separation requirement between the invert of the wastewater pond and the highest anticipated elevation of underlying groundwater; adds monitoring requirements for waiver of waste discharge requirements; (4) Clarifies goal regarding overdraft of ground water; (5) Revises valleywide drain recommendation to include salts generated by municipal, industrial, and agricultural dischargers; establishes conditions for Regional Water Board Support; (6) Clarifies that flush toilets and package, biological treatment systems at recreational areas must meet the requirements of a domestic wastewater treatment facility; (7) Deletes provisions requiring counties, cities or water agencies to adopt standards for drilling and abandonment of water wells, cathodic protection wells, and monitoring wells; (8) Provides that burned areas should be managed to minimize erosion of materials into streams; (9) Provides that wastewater dischargers will be required to reclaim and reuse wastewater whenever reclamation is feasible; (10) Provides that Regional Water Board will review alternatives when considering a ban on new septic tank systems and elimination of existing systems; (11) Revises effluent limits for discharges to navigable waters and discharges to land; (12) Revises conditions for temporary waiver of wastewater reclamation requirements if the project is consistent with the "Guidelines for Use of Reclaimed Water" developed by the Department of Health Services; (13) Requires inclusion of plans for reclamation in all project reports for new or expanded wastewater facilities; (14) Adds a policy statement encouraging small communities to consolidate when they have insufficient resources to treat their wastewater; (15) Revises requirements for industrial wastewater; allows discharge of higher electrical conductivity if the total salt load is decreased or the higher electrical conductivity is due to high organic material; explains policy on industrial wastewater reuse; (16) Clarifies operational procedures for land disposal of stillage waste from wineries; (18) Adds nature of control actions to achieve water quality objectives; (19) Adds a policy on implementation of State Water Resources Control Board "Antidegradation Policy," Resolution No. 68-16, "Statement of Policy with Respect to Maintaining High Quality of Water in California"; (20) Application of water quality objectives: (A) Provides that objectives apply to all waters having designated beneficial uses, rather than at an intake, wellhead or other point of consumption; (B) Provides for designation of mixing zones in connection with the issuance of NPDES and storm water permits; (C) Clarifies that "background" represents an initial goal and describes how the numerical limits are established in implementing the narrative water quality objectives; (D) Clarifies how appropriate numerical limits are determined where toxic pollutants exist together in water; (E) Provides for schedules of compliance regarding NPDES permits; (21) Add "Ground Water Cleanups" policy: specifies factors to be considered and criteria that must be satisfied to investigate discharges and establish cleanup levels on a case-by-case basis; (22) Adds specific prohibition of dilution in lieu of treatment to meet waste discharge requirements except in water short areas where waste may be blended with fresh water for reuse; (23) Prohibits discharge of oil or any residuary product of petroleum; (24) Prohibits discharge of hazardous waste or chemicals known to the state to cause cancer; (25) Clarifies requirements that will be imposed on a discharger to a water quality limited segment; (26) Provides for variances from Basin Plan provisions to implement control measures for vector and weed control, pest eradication, or fishery management conducted to fulfill statutory requirements. s 3943. Amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Agricultural Subsurface Drainage Discharges. The amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins, as adopted May 3, 1996 by the Central Valley Regional Water Quality Control Board, modifies the regulatory provisions of the previous Water Quality Control Plan as follows: 1. Surface Water Beneficial Uses - Beneficial Uses were added to Mud Slough (north), Salt Slough and the Wetland Supply Channels, included a "Limited Beneficial Use" for Mud Slough (North) and the Wetland Supply Channels. 2. Water Quality Objective for Selenium - A Water Quality Objective for Selenium and schedule of compliance has been added for Mud Slough (North) and the San Joaquin River. A selenium Water Quality Objective has also been added for Salt Slough and reconstructed water supply channels in the Grasslands watershed. 3. Agricultural Discharge Prohibitions - The discharge of agricultural subsurface drainage from the Grasslands Watershed to the San Joaquin River is prohibited unless such discharge began prior to the effective date of this amendment, or is regulated by Waste Discharge Requirements. Selenium discharge from the Grasslands Watershed to the San Joaquin River is prohibited in amounts exceeding 8,000 lbs/yr, and is prohibited in Mud Slough and the San Joaquin River from Sack Dam to the mouth of the Merced River after October 1, 2010 unless Water Quality Objectives for selenium are being met. The discharge of agricultural subsurface drainage water to Salt Slough and the wetland water supply channels is prohibited unless quality objectives for selenium are being met. 4. Control Actions - Performance goals and effluent limits established in Waste Discharge Requirements will be used to measure progress toward achievement of Water Quality Objectives for selenium. s 3944. Site Specific pH and Turbidity Objectives for Deer Creek in El Dorado and Sacramento Counties. Regional Board Resolution No. R5-2002-0127, adopted on July 19 2002 by the Central Valley Regional Water Quality Control Board (CVRWQCB), amended Chapter 3, Water Quality Objectives by establishing the following site-specific pH and turbidity objectives for Deer Creek in El Dorado and Sacramento Counties: The pH of the receiving water shall not be depressed below 6.5 nor raised above 8.5. When the dilution ratio for discharges is less than 20:1 and where natural turbidity is less than 1 Nephelometric Turbidity Unit (NTU), discharges shall not cause the receiving water daily average turbidity to exceed 2 NTUs or daily maximum turbidity to exceed 5 NTUs. Where natural turbidity is between 1 and 5 NTUs, discharges shall not cause receiving water daily average turbidity to increase more than 1 NTU or daily maximum turbidity to exceed 5 NTUs. Where discharge dilution ratio is 20:1 or greater, or where natural turbidity is greater than 5 NTUs, the general turbidity objectives shall apply. s 3944.1. Site Specific Objectives for Temperature for Deer Creek in El Dorado and Sacramento Counties. Regional Board Resolution No. R5-2003-0006, adopted by the Central Valley Regional Water Quality Control Board on January 31, 2003, modified the regulatory provisions of the Water Quality Control Plan for the Sacramento and San Joaquin River Basins by (1) adding text to Chapter III (Water Quality Objectives) establishing site-specific objectives for temperature for Deer Creek in El Dorado and Sacramento Counties, and by (2) adding text to Chapter V (Surveillance and Monitoring) requiring a special study of temperature, flow, and biota on Deer Creek to be conducted by the El Dorado Irrigation District to evaluate compliance with the site-specific temperature objectives and their effect on beneficial uses. The site-specific temperature objectives are currently being attained and are specified by calendar month as a daily maximum and monthly average not to be exceeded. s 3944.2. Revision to Site-Specific Objectives for Temperature for Deer Creek in El Dorado and Sacramento Counties. On September 16, 2005, the Central Valley Regional Water Quality Control Board adopted Resolution No. R5-2005-0119, thereby modifying an amendment to the Water Quality Control Plan for the Sacramento and San Joaquin River Basins (Basin Plan) (previously adopted under Resolution No. R5-2003-0006) that established site-specific objectives for temperature for Deer Creek, located in El Dorado and Sacramento Counties. Resolution No. R5-2005-0119 changed the word "discharges"to the words "controllable factors" in the following sentence located in Chapter 3 of the Basin Plan: "For Deer Creek, source to Cosumnes River, temperature changes due to (strike)discharges(strike) controllable factors shall not cause creek temperatures to exceed the objectives specific in Table III-4A." s 3945. Program for Control of Mercury in Clear Lake. Regional Board Resolution No. R5-2002-0297, adopted on December 6, 2002, by the Central Valley Regional Water Quality Control Board, modifies the regulatory provisions of the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins by establishing a program for the control of mercury in Clear Lake. The modifications included: 1. Surface Water Beneficial Uses - The commercial and sport fishing beneficial use designation was added to Clear Lake. 2. Water Quality Objective for Methylmercury - A Water Quality Objective expressed as methylmercury concentration in fish tissue was added for Clear Lake. Methylmercury concentrations are not to exceed 0.09 mg/kg in trophic level 3 fish and 0.19 mg/kg in trophic level 4 fish. 3. Implementation Plan to Reduce Mercury - The implementation plan to reduce mercury levels in lake sediment and fish tissue includes a requirement to reduce mercury loads from the Sulphur Bank Mercury Mine by 95%, reduce lake sediment mercury concentrations by 70%, and reduce mercury loads from tributary creeks by 20%. Implementation of detailed remediation plans is required within ten years. 4. Monitoring Program - A monitoring and surveillance program includes criteria for determining compliance with the fish tissue objective. The program requires mercury monitoring in water, sediment, and fish tissue and specifies monitoring frequencies. s 3946. Updating Language and Editorial Corrections in the Water Quality Control Plans for the Sacramento-San Joaquin River Basins and for the Tulare Lake Basin. Amendment updates descriptions and references and makes minor corrections to the Basin Plan text. s 3947. Program to Control the Discharge of Diazinon and Orchard Pesticide Runoff into the Sacramento and Feather Rivers. The Amendment incorporates the following provisions into the Central Valley Regional Water Quality Control Board's (Regional Board's) Water Quality Control Plan for the Sacramento River and San Joaquin River Basins (Basin Plan): Water Quality Objectives A maximum diazinon concentration of 0.080 micrograms per liter (<>g/L) (1- hour average) and 0.050 <>g/L (4-day average) in the Sacramento and Feather Rivers not to be exceeded more than once every three years on the average. Implementation Provisions for Discharge into the Sacramento and Feather Rivers. 1. After July 1, 2008, prohibits the discharge of diazinon from areas contributing to an exceedance of load allocations or water quality objectives in the previous year (July-June), unless the discharge is governed by waste discharge requirements or a waiver of waste discharge requirements. 2. Requires orchard dischargers to consider alternative pest control methods or control runoff to meet Basin Plan requirements, if an alternative to diazinon would degrade groundwater or surface water. 3. Requires compliance with diazinon water quality objectives, wasteload allocations, and load allocations by June 30, 2008. 4. Establishes the diazinon wasteload allocations for National Pollutant Discharge Elimination System-permitted sources equal to the diazinon water quality objectives. 5. Requires Regional Board review of the allocations and implementation provisions by June 30, 2007 and every five years thereafter. 6. Establishes the loading capacity for diazinon as equal to the water quality objective times flow as measured at three locations in the Sacramento River and one location in the Feather River, with the flow value adjusted to account for flood control diversions. 7. Establishes load allocations for nonpoint sources for four sub-watersheds above the Sacramento River at Verona (17 percent of the loading capacity to the Colusa Basin Drain, 12 percent to the Feather River, 27 percent to the Sacramento River at Colusa, and 33 percent to the Sutter Butte Basin) and establishes load allocations for nonpoint source discharge to the Sacramento River from Verona to the I Street Bridge. The load allocations are based on the available loading capacity minus a margin of safety. 8. States that the Regional Board will require any additional reductions in diazinon necessary to account for additive or synergistic effects or protect tributary waters. 9. Requires the submission of a management plan to the Regional Board by June 30, 2005 that describes the actions to be taken by diazinon dischargers to meet the allocations and objectives. 10. Requires any waiver of waste discharge requirements to be consistent with the provisions of the implementation program. 11. Includes other provisions that define terms and describe how the Regional Board will conduct the implementation program. 12. Includes estimates of the cost of the program for agriculture. Monitoring Requires the monitoring and reporting program associated with any waiver of waste discharge requirements or waste discharge requirements that addresses orchard pesticide runoff in the Sacramento Valley be designed to collect the information necessary to: 1. Determine compliance with established water quality objectives for diazinon in the Sacramento and Feather Rivers; 2. Determine compliance with established waste load allocations and load allocations for diazinon; 3. Determine the degree of implementation of management practices to reduce off-site migration of diazinon; 4. Determine the effectiveness of management practices and strategies to reduce off-site migration of diazinon; 5. Determine whether alternatives to diazinon are causing surface water quality impacts; 6. Determine whether the discharge causes or contributes to a toxicity impairment due to additive or synergistic effects of multiple pollutants; and 7. Demonstrate that management practices are achieving the lowest pesticide levels technically and economically achievable. s 3948. Dedesignating Four Beneficial Uses of Old Alamo Creek, Solano County. Regional Board Resolution No. R5-2005-0053, adopted by the Central Valley Regional Water Quality Control Board on April 28, 2005, modified the regulatory provisions of the Water Quality Control Plan for the Sacramento and San Joaquin River Basins by dedesignating four beneficial uses (municipal and domestic supply, cold freshwater habitat, spawning, reproduction, and early development of fish, and migration of aquatic organisms) of Old Alamo Creek in Solano County. s 3949. Program for Control of Diazinon and Chlorpyrifos Runoff into the Lower San Joaquin River. On October 21, 2005, the Central Valley Water Board adopted Resolution No. 2005-0138. The Amendment incorporates the following provisions into the Central Valley Regional Water Quality Control Board's (Regional Board's) Water Quality Control Plan for the Sacramento River and San Joaquin River Basins (Basin Plan): Water Quality Objectives A maximum chlorpyrifos concentration of 0.025 micrograms per liter (<>g/L) (1-hour average) and 0.015 <>g/L (4-day average) and a maximum diazinon concentration of 0.16 micrograms per liter (<>g/L) (1-hour average) and 0.10 <>g/L (4-day average) in the San Joaquin River from Mendota Dam to Vernalis not to be exceeded more than once in a three year period. Implementation Provisions for Discharge into the San Joaquin River. 1. After December 1, 2010, the discharge of diazinon or chlorpyrifos is prohibited during dormant and irrigation seasons if there was any exceedence of diazinon and/or chlorpyrifos water quality objectives in the previous season. The prohibitions do not apply if the discharge is subject to a waiver of waste discharge or waste discharge requirement. 2. Requires dischargers to consider whether an alternative to diazinon or chlorpyrifos would degrade ground or surface water. 3. Requires compliance by December 1, 2010. 4. Requires Regional Water Board review of the allocations and implementation provisions by December 31, 2009 and every five years thereafter. 5. Establishes the wasteload allocations for National Pollutant Discharge Elimination System-permitted sources, load allocations for nonpoint source discharges, and the Loading Capacity of the San Joaquin River from the Mendota Dam to Vernalis as defined below: C D = diazinon concentration in mg/L of point source discharge for the WLA; nonpoint source discharge for the LA; or San Joaquin River for the LC. C C = chlorpyrifos concentration in mg/L of point source discharge for the WLA; nonpoint source discharge for the LA; or San Joaquin River for the LC. WQO D = acute or chronic diazinon water quality objective in <>g/L. WQO C = acute or chronic chlorpyrifos water quality objective in <>g/L. 6. States that the Regional Water Board will require any additional reductions in diazinon and chlorpyrifos necessary to account for additive or synergistic effects or protect tributary waters. 7. Requires dischargers to submit management plans to the Regional Water Board. 8. Requires any waiver of waste discharge requirements to be consistent with the provisions of the implementation program. 9. Includes estimates of the cost of the program for agriculture . Monitoring Requires a monitoring and reporting program to determine: 1. Compliance with diazinon and chlorpyrifos water quality objectives and loading capacity. 2. Compliance with load allocations. 3. Degree of implementation and effectiveness of management practices and strategies to reduce off-site migration of diazinon and chlorpyrifos. 5. Degradation of surface water quality from alternatives to diazinon and chlorpyrifos. 6. Additive or synergistic effects of multiple pollutants 7. Management practices are achieving the lowest pesticide levels technically and economically achievable. s 3949.1. Amendments to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins for the Control of Salt and Boron Discharges into the Lower San Joaquin River. The Amendments: 1. Defines the location of the Lower San Joaquin River (LSJR) Watershed, which is the area that the salinity control program applies to. 2. Defines, for the purposes of this control program: a. Nonpoint source land uses as all irrigated lands. b. Nonpoint source discharges as discharges from irrigated lands. c. Irrigated lands as lands where water is applied for producing crops and includes, but is not limited to, land planted to row, field and tree crops as well as commercial nurseries, nursery stock production, managed wetlands, and rice production. 3. Requires dischargers of irrigation return flows from irrigated lands to comply with one of the following conditions: a. Cease discharge to surface water b. Discharge does not exceed 315 us/cm electrical conductivity (based on a 30- day running average) c. Operate under waste discharge requirements that include effluent limits for salt d. Operate under a waiver of waste discharge requirements for salt and boron discharges to the LSJR 4. Establishes salinity base load allocations and real-time load allocations for nonpoint source dischargers. Base load allocations are fixed and real time load allocations are based on the available loading capacity minus a margin of safety. 5. Establishes a method for apportioning load allocations among nonpoint source dischargers. 6. Establishes salinity waste load allocations for National Pollutant Discharge Elimination System (NPDES) permitted sources equal to the existing salinity water quality objectives for the San Joaquin River at the Airport Way Bridge near Vernalis. 7. Establishes supply water load allocations for salts in irrigation water imported to the LSJR Watershed from the Sacramento/San Joaquin River Delta. 8. Requires compliance with load allocations within eight to 20 years from the effective date of the control program (depending on the location of the discharge, threat to water quality, and water year type). 9. Requires existing NPDES dischargers to comply with waste load allocations within 20 years from the effective date of the control program for critically dry water years and 16 years from the effective date of the control program for all other water year types. 10. Requires new NPDES permitted dischargers to comply with waste load allocations upon commencement of their discharge. 11. Requires the Regional Board to review and update the load allocations and waste load allocations every six years from effective date of this control program. 12. Requires the Regional Board to incorporate load allocations and/or conditions of program compliance into waste discharge requirements and/or waiver of waste discharge requirements within two years from the effective date of this control program. s 3949.2. Program to Control Dissolved Oxygen in the Stockton Deep Water Ship Channel. Resolution No. R5-2005-0005, adopted by the Central Valley Regional Water Quality Control Board (Central Valley Water Board) on January 27, 2005, modified the regulatory provisions of the Water Quality Control Plan for the Sacramento and San Joaquin River Basins by incorporating a program for the control of factors contributing to the dissolved oxygen impairment in the Stockton Deep Water Ship Channel (DWSC). Impairment is defined in terms of excess net oxygen demand (ENOD) and responsibility for reducing ENOD is apportioned to the entities responsible for three factors that contribute to the impairment (low flow, increased channel geometry, and loads of oxygen demanding substances and their precursors (ODS)). The program includes a Total Maximum Daily Load that allocates percent of relative responsibility for the ENOD to the point source and nonpoint source discharges that contribute ODS to the DWSC: 30 percent for a waste load allocation for the City of Stockton Regional Wastewater Control Facility; 60 percent for a load allocation for nonpoint sources (defined as discharges from irrigated lands); and 10 percent as a reserve for impacts from unknown sources and/or minor sources. An explicit margin of safety of 20 percent is incorporated. The Central Valley Water Board has committed to reviewing and updating the load allocations, waste load allocations, and prohibitions (mentioned below) by December 2009. Entities responsible for sources of ODS are required to perform studies by December 2008 that identify and quantify: 1) sources of ODS in the source area; 2) growth or degradation mechanisms of ODS in transit to the DWSC; and 3) the impact of ODS on dissolved oxygen concentrations in the DWSC under a range of environmental conditions. Within 60 days from the effective date of this amendment, responsible entities must submit a study plan for the Central Valley Water Board describing how ongoing studies and future studies will address information needs. Upon the effective date of this amendment, any increases in the discharge of ODS into waters tributary to the DWSC is prohibited unless the discharge is regulated by a waiver of waste discharge requirements, or individual or general waste discharge requirements or National Pollution Discharge Elimination System (NPDES) permits, which either implement the amendment or include a finding that the discharge will have no reasonable potential to cause or contribute to the dissolved oxygen impairment in the DWSC. After December 31, 2011, the discharge of ODS into waters tributary to the DWSC is prohibited when net daily flow in the DWSC is less than 3,000 cubic feet per second, unless dissolved oxygen objectives in the DWSC are being met or the discharge is regulated by a waiver of waste discharge requirements, or individual or general waste discharge requirements or National Pollution Discharge Elimination System (NPDES) permits, which either implement the amendment; or include a finding that the discharge will have no reasonable potential to cause or contribute to the dissolved oxygen impairment in the DWSC. The United States Army Corps of Engineers must submit by December 31, 2006 a technical report identifying and quantifying: 1) the chemical, biological, and physical mechanisms by which loads of substances into, or generated within the DWSC, are converted to oxygen demand; and 2) the impact that the Stockton Deep Water Ship Channel has on re-aeration and other mechanisms that affect dissolved oxygen concentrations in the water column. Any project that requires a Clean Water Act Section 401 Water Quality Certification and that has the potential to impact dissolved oxygen conditions in the DWSC must evaluate and fully mitigate those impacts. The Central Valley Water Board may consider alternate measures, as opposed to direct control, of certain contributing factors if these measures adequately address the impact on the dissolved oxygen impairment and do not degrade water quality in any other way. Compliance with waste load allocations and load allocations for ODS, and development of alternate measures to address non-load related factors must be achieved by December 31, 2011. s 3950. Revised Water Quality Control Plan for the Lahontan Region. The revised Water Quality Control Plan for the Lahontan Basin, as adopted on September 9, 1993 and subsequently amended on October 14, 1994, by the Lahontan Regional Water Quality Control Board includes the regulatory provisions summarized below: (a) Beneficial Use Definitions: (1) defines "Aquaculture," "Preservation of Biological Habitats of Special Significance," "Commercial and Sportfishing," "Flood Peak Attenuation/Flood Water Storage," "Migration of Aquatic Organisms," "Navigation," "Industrial Process Supply," "Spawning, Reproduction, and Development," and "Water Quality Enhancement"; (2) revises existing beneficial use definitions for statewide consistency; (b) Water Body Class Modifier Definitions: defines "marsh," "emergent wetlands," "wet meadow," "playa lakes/wetlands," "slough" and "vernal pool;" (c) Surface Waters (1) revises water quality objectives for ammonia, coliform bacteria, chemical constituents, total residual chlorine, dissolved oxygen, floating materials, oil and grease, pesticides, pH, radioactivity, settleable materials, suspended materials, taste and odor, temperature, and fisheries management activities using rotenone; (2) adds water quality objectives for: nondegradation of aquatic communities and populations for wetlands, arsenic, boron, molybdenum and pH for Honey Lake; suspended sediment for Lake Tahoe; 12 constituents for Fallen Leaf Lake; (d) Ground Waters: revises water quality objectives for coliform bacteria, chemical constituents, radioactivity, and taste and odor; specifies that objectives apply at all points; (e) Compliance with Water Quality Objectives: (1) specifies that the most strict objectives applies; (2) adds directions regarding (A) pollution and nuisance, (B) taste and odor, (C) human health and toxicity, (D) agriculture designations, (E) "natural high quality waters," (F) "10 percent significance level," (G) "means," "medians," and "90th percentile values," (H) standard analytical methods to determine compliance with objectives, (I) bacterial analyses; (J) acute toxicity, (K) chronic toxicity, and (L) application of narrative and numerical water quality objectives to wetlands; (f) Waste Discharge Prohibitions: (1) revises and clarifies waste discharge prohibitions; (2) adds exemption criteria for restoration projects; (3) adds consideration for reclamation projects; (g) Spills, Leaks, Complaint Investigations, and Cleanups: adds risk assessment criteria for site specific cleanup levels; (h) Municipal and Domestic Wastewater: (1) clarifies considerations in establishing discharge requirements; (2) adds control actions to address unlined sewage ponds; (3) adds package treatment plant criteria and permitting requirements; (4) adds criteria for consideration of proposed reclamation projects; (5) clarifies reclamation control measures for Indian Creek Watershed; (6) revises criteria for individual waste disposal systems; (7) adds factors for evaluating alternative individual waste disposal systems; (i) Ground Water Protection and Management: (1) City of Bishop: adds requirements regarding cleanup of ground water polluted by underground storage tanks; (2) adds policy for remediation of underground storage tank discharges in hydrogeologic areas other than Bishop; (j) Mining, Industry and Energy production: revises control measures for mining and mineral processing; for industrial activities other than mining and mineral processing, including measures applicable to the cement industry, asphalt batch plants, and lumber mills; and for energy production, including geothermal operations, hydroelectric projects, and cogeneration facilities; (k) Land Development: (1) revises control measures for construction activities; (2) revises control measures for road construction and maintenance; (l) Resource Management and Restoration: (1) adds method for determining site specific boundaries of wetlands; (2) adds control measures for wetland protection; (3) adds control actions for livestock grazing; (4) adds control actions for fisheries protection; (5) revises control measures for rotenone use in fisheries management; (6) defines "restoration" and adds control measures for lake/reservoir restoration; (7) adds control measures for river and stream restoration; (8) adds control measures for wetland restoration; (9) adds control measures for agricultural chemicals; (10) adds control measures for confined animal facilities; (11) adds control measures for aquaculture facilities; (12) adds control measures for boating and shoreline recreation regarding dredging and underwater construction, beach creation and replenishment, shorezone protection, piers, and marinas; (13) adds control measures for golf courses and other turf areas; (m) Lake Tahoe Basin: (1) incorporates and revises essential standards and control measures from the Water Quality Management Plan for the Lake Tahoe Region ( "208 Plan," Tahoe Regional Planning Agency 1988) and from the Lake Tahoe Basin Water Quality Plan (State Water Resources Control Board 1989): (1) Beneficial Use Definitions: (makes revisions listed in [a] above); (2) Surface Waters: (A) incorporates and revises water quality objectives from ammonia, coliform bacteria, chemical constituents, total residual chlorine, dissolved oxygen, floating materials, oil and grease, pesticides, pH, radioactivity, settleable materials, suspended materials, taste and odor, temperature, and fisheries management activities using rotenone; (B) incorporates water quality objectives for algal growth potential, biological indicators, clarity, electrical conductivity, pH, plankton counts, and transparency; (C) adds water quality objectives for: nondegradation of aquatic communities and populations for wetlands; suspended sediment; and, 12 constituents for Fallen Leaf Lake; (3) Ground Waters: incorporates and revises water quality objectives for coliform bacteria, chemical constituents, radioactivity, and taste and odor; (4) Compliance with Water Quality Objectives: (makes revisions specified in [e] above); (5) Discharge Prohibitions: incorporates and revises waste discharge prohibitions for the Lake Tahoe Hydrologic Unit; (6) Land Capability and Coverage Limitations: adds provisions on approval of "man-modified" reclassifications; incorporates provisions on coverage limitations; adds provisions on excess coverage mitigation, coverage transfer and coverage relocation; (7) Remedial Programs and Offset: clarifies existing authority for Region Board review of substantial modifications to the Tahoe Regional Planning Agency offset program; adds priority groups of facilities for obtaining retrofit of BMPs; (8) Stormwater Problems and Control Measures: incorporates and revises stormwater effluent limitations; (9) Stream Zones, Floodplains, Shorezones, and Ground Water: Clarifies criteria for identification of a stream environment zone (SEZ), for establishment of a SEZ setback, for SEZ protection, and SEZ restoration; adds criteria for SEZ creation; adds control measures for floodplain protection, shorezone protection, and ground water protection; (10) Development Restriction: clarifies effect of waste discharge prohibitions on new development; incorporates and revises exemption criteria for: new subdivisions, new development in SEZs or not in accord with land capability, new development which is not offset by remedial projects, 100-year floodplains, and development of new piers; (11) Roads and Rights-of-Way: incorporates and revises control measures; (12) Timber Harvest Activities: incorporates and revises control measures; (13) Livestock Grazing And Confinement: incorporates control measures; (14) Outdoor Recreation: incorporates direction for ski area maintenance activities; incorporates and revises controls for piers. s 3951. Revisions to the Water Quality Control Plan for the Lahontan Region, as Adopted by the California Regional Water Quality Control Board, Lahontan Region on April 21, 1995. The regulatory provisions included in the adopted amendments are summarized below: (a) Waste Discharge Prohibitions: Revises an existing Basin Plan prohibition against the discharge of waste from leaching or percolation waste disposal systems in the Cady Springs prohibition area. (1) Redefines the Cady Springs prohibition area. (2) Adds exemption criteria for proposed projects in existing land developments. (3) Adds exemption criteria for proposed projects on new lots. (b) Waste Quality Objectives: Corrects the headings "Tahoe Valley North" and "Tahoe Valley North Basin" (under the headings "Water Quality Objectives for Specific Ground Water Basins", and "Water Quality Objectives for Certain Ground Water Basins") to read "Truckee River and Little Truckee River HUs". (c) Timber Harvest: Clarifies that RWQCB regulations apply to all types of forest management activities, not only commercial timber harvests. Clarifies the RWQCB's intent to review and consider use of innovative technology for forest management on steep slopes, as well as in Stream Environment Zones, in the Lake Tahoe Basin. Makes other minor clarifications and corrections in Basin Plan language. s 3952. Removal of the Municipal and Domestic Supply (MUN) Beneficial Use Designations from Nine Saline Water Bodies. On July 12, 2000, the Lahontan Regional Water Quality Control Board adopted Resolution No. 6-00-67 amending the Water Quality Control Plan for the Lahontan Basin (Basin Plan). The amendment revised the Basin Plan by removing the Municipal and Domestic Supply (MUN) beneficial use designations from nine saline water bodies. The water bodies include Wendel Hot Springs, Amedee Hot Springs, Fales Hot Springs, Hot Creek, Little Hot Creek, Little Alkali Lake, Keough Hot Springs, Deep Springs Lake, and Amargosa River. The amendment removes the MUN designation of these waters from Table 2-1 in the Basin Plan, and also adds Amedee Hot Springs, Little Alkali Lake, and Little Hot Creek and their designated beneficial uses, with the exception of MUN, to Table 2-1. These three water bodies were previously categorized as "Minor Surface Waters" in the Basin Plan. s 3953. Basin Plan Amendment Incorporating a Total Maximum Daily Load (TMDL) and TMDL Implementation Program to Control Sediment Loading to Heavenly Valley Creek. The TMDL's goal of attaining instream standards is projected to occur within approximately 20 years after final approval of the TMDLs (2021). The terms "parameter" and "desired conditions," as used in this TMDL, are equivalent to the U.S. EPA terms "indicator" and "targets," respectively, as defined in "Guidance for Developing TMDLs in California" January 7, 2000 USEPA, Region 09. The TMDL assigns a loading capacity for total annual instream sediment loading to Heavenly Valley Creek, measured at the "Property Line" station near the resort permit boundaries, as 58 tons of sediment per year, expressed as a five year rolling average. The TMDL implementation program is based substantially on continuation of existing erosion control and monitoring programs which are being carried out under an adaptive management approach by the U.S. Forest Service, Lake Tahoe Basin Management Unit (LTBMU - the landowner) and the Heavenly Valley Ski Resort (an LTBMU permittee). The implementation program includes full application of Best Management Practices to all new and existing disturbed areas within the ski resort. Specifics of the implementation include the following: Summary of TMDL Implementation Program Implementation Measure Schedule Abandon and restore 7.59 acres of existing Complete by 2006 unpaved roads Stabilize 21.10 acres of existing roads which Complete by 2006 will remain in use Restore 182 acres of existing ski runs Complete by 2006 Maintain BMPs as necessary Annually Review success of specific BMPs at specific Annually sites; identify and implement improvements through adaptive management approach Conduct a comprehensive review of progress At five year intervals toward watershed restoration and attainment of beginning in 2000: (first water quality standards and identify needs for evaluation report completed change through adaptive management program. in 2001). The Lahontan Regional Board will use its existing authority, including the Lake Tahoe Basin control measures outlined in Chapter 5 of its Basin Plan, and the three-tier compliance approach (ranging from voluntary compliance to regulatory action) in the statewide Nonpoint Source Management Plan, to ensure implementation of the TMDL. The TMDL Implementation Plan includes the addition of macroinvertebrate community health monitoring, along with a continuation of monitoring provisions for suspended sediment concentration and flow and other parameters. If progress is not satisfactory at the conclusion of the second (2005-2006) review, Regional Board staff will evaluate the need for revision of the TMDL and/or the implementation program. s 3954. Revisions to the Water Quality Control Plan for the Lahontan Region, as Adopted by the California Regional Water Quality Control Board, Lahontan Region on January 23, 2002. On July 12, 2000, the Lahontan Regional Water Quality Control Board (LRWQCB) adopted Resolution No. 6-00-66 amending the Water Quality Control Plan for the Lahontan Basin (Basin Plan). The amendments include both non-regulatory provisions (editorial and procedural changes) and regulatory provisions. The regulatory provisions of the amendments are: (1) Revisions to a regionwide prohibition against discharges of industrial waste to surface waters. The amended language provides that discharges of "industrial process wastes," as defined, may be allowed to surface waters not designated for the Municipal and Domestic Supply (MUN) beneficial uses, if such discharges comply with General Discharge Limitations and appropriate findings under state and federal antidegradation regulations are made. The amendments also add definitions of "industrial process wastes," "municipal and domestic wastewater," and "industry." (2) Removal of the potential Municipal and Domestic Supply (MUN) beneficial use designation from ground water within defined topographic boundaries surrounding Searles Lake, and addition of the Industrial Process Supply (PRO) use to ground water beneath the Searles Lake bed (Searles Valley ground water basin, Department of Water Resources Basin No. 52). s 3955. Basin Plan Amendment Incorporating a Total Maximum Daily Load (TMDL) and TMDL Implementation Program to Control Phosphorus Loading to Indian Creek Reservoir. The goal of this TMDL is a change from eutrophic to mesotrophic conditions, which should provide adequate support for aquatic life and recreational beneficial uses. Attainment of the numeric target for total phosphorus (0.02 mg/L as an annual mean concentration in the water column) is projected to occur within approximately 21 years after final approval of the TMDL (2024). Attainment of other numeric targets and narrative water quality objectives related to protection of beneficial uses is also projected to occur by that date. The TMDL assigns a loading capacity for phosphorus loading to Indian Creek Reservoir, as a net annual load of 82 pounds of total phosphorus in the water column. Attainment of the loading capacity and numeric target will require an 87 percent reduction in internal phosphorus loading from the sediment and a 75 percent reduction in external loading to the reservoir from the surrounding watershed and the tributary inflow. The TMDL implementation program will use an adaptive management approach. It establishes a process and schedule for selection and implementation of specific control measures. Such measures will include best management practices to control external sources, and in-lake control methods to control phosphorus loading from the sediment. Examples of potential in-lake controls include measures to remove phosphorus-laden sediment, reduce phosphorus release from sediment, and/or increase flushing of phosphorus from the reservoir. Implementation will be the responsibility of the South Tahoe Public Utility District (STPUD), which manages the reservoir and its tributary flow; the U.S. Bureau of Land Management, which owns the watershed contributing surface runoff to the reservoir; and public and private landowners in the watershed of the tributary inflow. The Lahontan Regional Board will use its existing authority, including the three-tier compliance approach (ranging from self-determined implementation to regulatory action) in the statewide Nonpoint Source Management Plan and Rangeland Water Quality Management Plan, to ensure implementation of the TMDL. The TMDL implementation program includes continued monitoring of water quality in the reservoir and its tributary inflow, and periodic inspection of BMPs once they have been installed. The adaptive management approach includes flexibility for changes in the existing monitoring program over time. If progress toward implementation and attainment of TMDL targets and indicators is not satisfactory at the conclusion of the second comprehensive review (in 2013), or if monitoring shows support of beneficial uses at phosphorus concentrations higher than mandated by the target, Regional Board staff will evaluate the need for revision of the TMDL and/or the implementation program. Specifics of the TMDL implementation program are as follows Summary of TMDL Implementation Program Implementation Process Schedule _______________________________________________________________________________ Stakeholder group is convened by Regional By 4 months after final Board staff approval of TMDL _______________________________________________________________________________ Regional Board staff and stakeholders By 1 year after final approval identify specific sites needing BMPs to of TMDL control external sources of phosphorus loading _______________________________________________________________________________ STPUD submits plan for Regional Board By 15 months after final approval on proposed action(s) to control approval of TMDL internal phosphorus loading _______________________________________________________________________________ Progress toward BMP implementation By 3 years after final approval reviewed; need for Regional Board regulatory of TMDL action considered _______________________________________________________________________________ Controls for internal and external sources By 2013 phosphorus loading are fully implemented _______________________________________________________________________________ Review of monitoring data in relation to Ongoing indicators and targets _______________________________________________________________________________ Comprehensive review of monitoring data and At five-year intervals progress toward implementation and following final approval of attainment of targets TMDL _______________________________________________________________________________ Consideration of needs for revisions in TMDL After 2013 _______________________________________________________________________________ s 3956. Basin Plan Amendment Revising Waste Discharge Prohibition Exemption Criteria for the Mojave Hydrologic Unit, San Bernardino County. Exemptions to regionwide, hydrologic unit, and hydrologic area prohibitions may be granted as specified in Chapter 4.1 of the Water Quality Control Plan. Most exemptions are based on a finding by the Regional Board Executive Officer if so delegated, that the discharge will not result in exceeding the water quality objectives or unreasonably affect the water for its beneficial uses. The Lahontan Regional Water Quality Control Board (Regional Board) will base this determination on an analysis of the criteria contained in State Water Resources Control Board Resolution No. 68-16, the Statement of Policy with Respect to Maintaining High Quality Waters in California. This amendment applies to the Mojave Hydrologic Unit for surface water that is tributary to the West Fork Mojave River or Deep Creek (Prohibition 1), the Silverwood Lake, Deep Creek, and Grass Valley watersheds (Prohibition 2), and surface waters upstream of the Lower Narrows (Prohibition 4). Language was added to Prohibitions 1 and 2 that exempts storm water discharges unless such discharges create a contition of pollution or nuisance. Prohibition 2 now applies to discharge of waste to land or water. s 3957. Amendment to Designated Beneficial Uses. On July 14, 2005, the Lahontan Regional Water Quality Control Board adopted Resolution No. R6T-2005-0021, amending the Water Quality Control Plan for the Lahontan Region (Basin Plan). The amendment revised Table 2-1 in Chapter 2 (Beneficial Uses) of the Basin Plan by deleting the Municipal and Domestic Supply (MUN) beneficial use designation for Owens Lake (Hydrologic Unit No. 603.30). s 3960. Water Quality Control Plans. The following are changes to regulatory provisions in the 1991 Water Quality Control Plan for the Colorado River Basin Region (Basin Plan). The surface water objectives for temperature, suspended solids, and settleable solids were changed by removing the words "point source". These objectives will now apply to nonpoint and point sources. The waiver for application of the bacteria objective was changed by adding the word "existing". Consequently, only existing point source discharges are now eligible for the waiver, while new point source discharges are not eligible. New language was added that contains numeric objectives for selenium (0.005 mg/L four-day average, 0.02 mg/L one-hour average) which apply to all surface water tributaries to the Salton Sea. Further, new language was added to address: 1. the regulation of sludge applications; 2. storm water pollution; 3. Regional Water Quality Control Board, Colorado River Basin Region's guidelines and the general permit for septic systems; and 4. the State Water Quality Certification Program. s 3961. Establishment of a Total Maximum Daily Load for Sedimentation/Siltation for the Alamo River. Regional Board Resolution No. 01-100, adopted on June 27, 2001, by the Colorado River Basin Regional Water Quality Control Board, modified the regulatory provisions of the Water Quality Control Plan for the Colorado River Basin Region (Basin Plan) by establishing a Total Maximum Daily Load (TMDL) for sedimentation/siltation in the Alamo River. The amendment to the Basin Plan requires the farmers/operators discharging agricultural return flows into the Alamo River and its tributary drains to implement best management practices to reduce silt/sediment delivery into the Alamo River, in accordance with a time schedule consisting of four phases. Each phase consists of about a three-year period with interim silt/sediment load reductions for each phase. Implementation of the TMDL does not take place until one year after the U.S. Environmental Protection Agency approves the TMDL. The amendment also requires the Imperial Irrigation District to submit and implement a revised drain water quality improvement plan, with a monitoring program, for the drains discharging into the Alamo River. A net reduction of 47% of the current sediment/silt load in the Alamo River is required by the TMDL. s 3962. A Total Maximum Daily Load for Pathogens in the New River. A Total Maximum Daily Load (TMDL) for pathogens discharged to the New River was adopted on October 10, 2001 by the Colorado River Basin Regional Water Quality Control Board (Regional Board). This resolution (No. 01-197) modified the Water Quality Control Plan for the Colorado River Basin Region. The U.S. Environmental Protection Agency (USEPA) must approve the TMDL. The New River Pathogens TMDL specifies water quality objectives to protect the River's beneficial uses, which currently are impaired by high pathogen levels. Fecal coliforms, E. Coli and enterococci bacteria serve as pathogen indicators. The pathogens load is allocated among point and non-point sources in the New River sub-watershed. All U.S. wastewater treatment plants (WWTPs) within the sub-watershed must utilize disinfection equipment within 1 year of USEPA approval. TMDL objectives are to be achieved no later than 3 years after USEPA approval. Regional Board staff is required to submit reports to the Regional Board that: (1) Detail compliance with the implementation plan for the TMDL that specifies responsible parties and time schedules, (2) Update financial options for implementation measures, and (3) Detail implementation progress every six months. The New River Pathogens TMDL will be re-evaluated and revised, if appropriate, based upon new monitoring data and studies. s 3963. Establishment of a Total Maximum Daily Load for Sedimentation/Siltation for the New River. Regional Board Resolution No. R-7-2002-0097, adopted on June 26, 2002, by the Colorado River Basin Regional Water Quality Control Board, modified the regulatory provisions of the Water Quality Control Plan for the Colorado River Basin Region by establishing a Total Maximum Daily Load (TMDL) for sedimentation/siltation in the New River. The implementation plan requires the farmers/operators in the New River Subwatershed to implement best management practices to reduce silt/sediment delivery into the New River, in accordance with a time schedule consisting of four phases. Each phase consists of about a three-year period, with interim load reductions for each phase. Implementation does not take place until one year after U.S. Environmental Protection Agency approval of the TMDL. It also requires the Imperial Irrigation District to submit and implement a revised drain water quality improvement plan, with a monitoring program, for the drains discharging into the New River. A net reduction of 17% of sediment/silt in the New River is required by the TMDL. s 3964. Prohibition of the Discharge of Individual Subsurface Wastewater Disposal Systems in the Cathedral City Cove. Regional Board Resolution No. 02-184 adopted on November 13, 2002 by the Colorado River Basin Regional Water Quality Control Board, amends the Water Quality Control Plan to prohibit discharges from individual subsurface wastewater disposal systems in Cathedral City Cove, pursuant to California Water Code s 13286. The prohibition takes effect on and after January 1, 2012. Cathedral City is required to submit to the Regional Board an implementation plan to comply with the January 1, 2012 prohibition date, one year following State Board approval of the subject amendment. Thereafter, the City is shall submit annual progress reports describing actions taken by the City or any other person or entity, to achieve compliance by January 1, 2012. s 3965. Prohibition of Discharge from Septic Tanks on Parcels that Overlie the Mission Creek or the Desert Hot Springs Aquifers. On March 30, 2004, the Colorado River Basin Regional Water Quality Control Board (Regional Board), adopted Resolution No. R7-2004-0017 amending the Water Quality Control Plan for the Colorado River Basin Region (Basin Plan). The amendment revised the Basin Plan by incorporate a prohibition of discharge of waste from existing or new individual disposal systems on percels of less than one-half acre that overlie the Mission Creek or the Desert Hot Springs aquifers if a sewer is available. The regulatory provisions are added to Chapter 4 of the Water Quality Control Plan. Section 13281(b) of the California Water Code requires the Regional Board to prohibit the discharge of waste from individual disposal systems (or septic tanks) on parcels less than one-half acre that overly the Mission Creek or Desert Hot Springs Aquifers in Riverside County, California, if a sewer system is available within two hundred feet. For parcels of one-half acre or greater, septic systems are limited to two per acre if a sewer system is available, and discharge of waste from additional or existing septic systems is prohibited. This amendment implements this section of the California Water Code by incorporating this language into the Basin Plan and further requires the Mission Creek Water District to submit a report to the Regional Board describing actions taken to implement the subject prohibition. s 3966. Total Maximum Daily Load for Sedimentation/Siltation for the Niland 2, P, and Pumice Imperial Valley Drains and Implementation Plan. On January 19, 2005, the Colorado River Basin Regional Water Quality Control Board (Colorado River Basin Water Board) adopted Resolution No. R7-2005-0006 to modify the regulatory provisions of the Water Quality Control Plan for the Colorado River Basin Region by establishing: (1) a Total Maximum Daily Load (TMDL) for sedimentation/siltation in the Imperial Valley Drains: Niland 2, P, and Pumice Drains, and Implementation Plan, (2) an implementation plan for all Imperial Valley drains that empty directly into the Salton Sea, and (3) a prohibition for discharge of silt-laden tailwater into the Imperial Valley, including the Imperial Valley drains, New River, and Alamo River. A net reduction of about 51 percent of sediment/silt in the Niland 2, P, and Pumice drains is required. The implementation plan requires farm landowners, renters/lessees, and operators/growers to implement management practices to reduce silt/sediment delivery into all drains that empty directly into the Salton Sea, in accordance with a time schedule consisting of four phases. Each phase consists of a two- or three-year period, with interim load reductions for each phase. The first implementation provisions begin three months after U.S. Environmental Protection Agency (USEPA) approval of the TMDL. The implementation plan also requires the Imperial Irrigation District to submit and maintain compliance with a revised Drain Water Quality Improvement Plan, to begin six months after USEPA approval of the TMDL. The prohibition begins three months after USEPA approval of the TMDL and establishes that direct or indirect discharge of sediment will be prohibited unless the discharger is in compliance with applicable sedimentation/siltation TMDLs, has a monitoring program approved by the Colorado River Basin Water Board's Executive Officer, or is covered by Waste Discharge Requirements (WDRs) or a Waiver of WDRs. s 3970. Exemption Criteria for Septic Systems Prohibition. This amendment to the Water Quality Control Plan for the Santa Ana Region (Basin Plan) revises the requirements and exemption criteria for use of septic tank subsurface disposal systems on lots smaller than one-half acre, set forth in an earlier amendment. Specifically, this amendment (1) clarifies the calculation of gross project area, (2) clarifies the definition of new development, (3) allows for replacement of outdated systems, (4) establishes flow rates for commercial and industrial facilities, (5) sets minimum distances from the nearest sewer in the exemption criteria, (6) establishes an off-set program, and (7) provides for review of alternative treatment technologies. s 3971. Revised Water Quality Control Plan. The revised Water Quality Control Plan for the Santa Ana Region, as adopted March 11, 1994, by the Santa Ana Regional Water Quality Control Board includes the regulatory provisions summarized below: (a) Beneficial Use Definitions: define "Estuarine Habitat" and "Limited Warm Freshwater Habitat" and revise existing beneficial use definitions for statewide consistency; (b) Water Body Type Definitions: define "enclosed bays and estuaries" and "wetlands," revise definition of "inland surface waters" to include wetlands; (c) Enclosed Bays and Estuaries: (1) add a narrative objective for non-degradation; (2) amend the narrative objectives for algae, chlorine, color, floatables, oil and grease, dissolved oxygen, solids, taste and odor, toxic substances, and turbidity; (d) Inland Surface Waters: (1) add a narrative objective for non-degradation; (2) amend the narrative objectives for algae, boron, chemical oxygen demand, chloride, odor, total dissolved solids (TDS), floatables, hardness, methylene blue-activated substances, oil and grease, taste and odor, and toxic substances; (3) add numeric water quality objectives for uranium, and turbidity; (4) revise the numeric water quality objectives for un-ionized ammonia, fluoride, methylene blue-active substances, and pH; (5) reach 2 of the San Jacinto River (Canyon Lake): Clarify water quality objectives; (e) Santa Ana River System: add site-specific water quality objectives for cadmium, copper, lead, and un-ionized ammonia; (f) Ground Waters: (1) amend narrative objectives for coliform bacteria, barium, boron, cyanide, total dissolved solids, fluoride, hardness, methylene blue-activated substances, oil and grease, and taste and odor; (2) add numeric water quality objectives for color, copper, pH, and uranium; (4) Big Bear Valley ground water subbasin: revise water quality objectives for TDS, hardness, sodium, chloride, nitrate nitrogen, and sulfates; (5) upper unconfined La Habra ground water subbasin: add numeric objective for TDS, chloride, sulfate, and boron; (g) Total Dissolved Solids for Santa Ana River: establish a process to achieve effective compliance with TDS limits for discharges to water bodies without assimilative capacity; (h) Chino Basin Animal Confinement Facilities (including dairies): add requirements for manure tracking, groundwater monitoring, engineered waste management planning, and offset programs in lieu of discharge prohibitions for manure and washwater; (i) Waste Discharge Prohibitions: amend prohibitions applying to all waters, to inland surface waters, and to ground waters; add prohibitions applying to enclosed bays and estuaries; (j) Waste Discharge Permits: define "Practical Quantification Level"; provide for use of Practical Quantification Levels in establishing waste discharge limits. s 3972. "Revision of Bacterial Water Quality Objectives for Ocean Waters." Regional Board Resolution No. 97-20, adopted on April 18, 1997, by the Santa Ana Regional Water Quality Control Board (SARWQCB), modified the regulatory provisions of the Water Quality Control Plan for the Santa Ana River Basin by deleting ocean water bacterial objectives for water contact recreation and shellfish harvesting and continuing to incorporate by reference the objectives contained in the Water Quality Control Plan for Ocean Waters (Ocean Plan). s 3973. Establishment of a Total Maximum Daily Load for Sediment in the Newport Bay/San Diego Creek Watershed. Regional Board Resolution 98-69, adopted on April 17, 1998, and Regional Board Resolution No. 98-101, adopted on October 9, 1998, by the Santa Ana Regional Water Quality Control Board (SARWQCB), modified the regulatory provisions of the Water Quality Control Plan for the Santa Ana Region by establishing a Total Maximum Daily Load (TMDL) for sediment discharged in the Newport Bay (Bay)/San Diego Creek watershed (Watershed). Phase 1 of the TMDL provides: (1) quantifiable targets for sediment deposition in Upper Newport Bay and the annual sediment load entering the Watershed; (2) load allocations for sediment discharged from specific land uses in the Watershed; (3) allowances for waivers of waste discharge requirements for maintenance dredging of flood control channels and for drainage channelization and stabilization projects under specified conditions; (4) requirements for sediment control measures to reduce dredging frequency of in-Bay sediment basins; and (5) maintenance requirements for in-channel and foothill sediment basins. Phase 2 of the TMDL provides specific monitoring requirements and methods for reassessment of the TMDL and specifies that required monitoring plans be approved by the SARWQCB at a duly noticed public hearing as per Chapter 1.5, Division 3, Title 23 of the California Code of Regulations (Section 647 et seq.). s 3974. Establishment of a Total Maximum Daily Load for Nutrients in the Newport Bay/San Diego Creek Watershed. Regional Board Resolution Nos. 98-09 and 98-100, adopted by the Santa Ana Regional Water Quality Control Board (SARWQCB) on April 17, 1998, and October 9, 1998, respectively, modified the regulatory provisions of the Water Quality Control Plan for the Santa Ana Region by establishing a total maximum daily load (TMDL) for nutrients (e.g.; nitrogen and phosphorous) discharged in the Newport Bay/San Diego Creek watershed (Watershed). The TMDL specifies daily, seasonal, and/or annual targets and specific land use load allocations for nutrients in the Watershed and total nitrogen load allocations for San Diego Creek (Reach 2). Phase 1 of the TMDL provides compliance schedules for: (1) review and revision of water quality objectives, (2) establishment of new waste discharge requirements, (3) revision of existing waste discharge requirements, (4) establishment of a nutrient management program for agricultural activities, and (5) co-permittees of the urban stormwater permit to submit: (a) an analysis of best management practices (BMPs) to achieve short-term (5-year) interim targets and final nutrient load reduction targets through the Drainage Area Management Plan (DAMP) and (b) a proposal for evaluating the effectiveness of implemented, control actions and compliance with nutrient load allocations. The sediment TMDL is incorporated by reference as the implementation plan for achieving the phosphorus loading reduction specified in the nutrient TMDL. Phase 2 of the TMDL provides specific monitoring requirements and methods for reassessment of the TMDL. Programs and activities required by the TMDL must be approved by the SARWQCB at a duly noticed public hearing as per Chapter 1.5, Division 3, Title 23 of the California Code of Regulations (Section 647 et seq.). These programs and activities are: (1) the agricultural nutrient management plan; (2) the proposal and analysis of BMPs to be implemented through the DAMP; and (3) the Phase 2 regional monitoring program. s 3975. Establishment of a Total Maximum Daily Load for Fecal Coliform Bacteria in the Newport Bay. Regional Board Resolution No. 99-10, adopted on April 9, 1999, by the Santa Ana Regional Water Quality Control Board (SARWQCB), modified the regulatory provisions of the Water Quality Control Plan for the Santa Ana Region by establishing a Total Maximum Daily Load (TMDL) for fecal coliform bacteria discharged in the Newport Bay. The TMDL addresses impairment due to pathogens in Newport Bay in a prioritized, phased approach. Compliance with objectives to protect water contact recreation are to be achieved no later than 14 years after State approval of the TMDL; objectives to protect shellfish harvesting are to be met no later than 20 years after State approval of the TMDL. Concentration-based allocations are assigned for vessel waste, urban runoff, natural sources, and agricultural runoff. The TMDL will be reevaluated and revised, if appropriate, based on monitoring results and relevant studies. These studies include source identification and characterization, development of a bacterial water quality model, a shellfish harvesting and a water contact recreation beneficial use assessment, and evaluation of a vessel waste program. Revision of the TMDL would be considered through the Basin Plan amendment process. Upon completion and consideration of studies and any appropriate Basin Plan amendment, the Regional Board shall adopt a plan for achieving the targets. This plan will use a phased compliance approach with priorities and compliance schedules assigned based on the use and area affected and the nature, magnitude, and timing of violations. The fecal coliform TMDL contains an implicitly incorporated margin of safety by not applying adjustments for dilution, natural die-off, and tidal flushing. s 3976. Basin Plan Amendment Authorizing Schedules of Compliance in NPDES Permits. On May 19, 2000, the Santa Ana Regional Water Quality Control Board (Santa Ana Regional Board) adopted Resolution No. 00-27 amending the Basin Plan to incorporate language that explicitly authorizes the Santa Ana Regional Board to include schedules of compliance in National Pollutant Discharge Elimination System permits for effluent limitations that implement water quality objectives or criteria that are adopted, revised, or newly interpreted after this Basin Plan amendment becomes effective. The amendment requires that dischargers requesting such a schedule(s) of compliance submit documentation that is to be justified and as short as possible. The amendment identifies the minimum documentation that is to be submitted and stipulates that the Santa Ana Regional Board may require additional documentation on a case-by-case basis. The amendment also stipulates that any approved compliance schedule shall not exceed ten years from the date of adoption or interpretation of the applicable water quality objective or criterion. s 3977. Resolution No. R8-2003-0039 - Amending the Water Quality Control Plan (Basin Plan) for the Santa Ana Region To Include a Total Maximum Daily Load (TMDL) for Chlorpyrifos and Diazinon in San Diego Creek and Upper Newport Bay. Regional Board Resolution No. R8-2003-0039, adopted on April 4, 2003 by the Santa Ana Regional Water Quality Control Board, modified the regulatory provisions of the Water Quality Control Plan [Basin Plan] for the Santa Ana Region by establishing a TMDL for chlorpyrifos in Upper Newport Bay and diazinon and chlorpyrifos in San Diego Creek. The amendment addresses water quality impairment due to aquatic toxicity caused by the presence of diazinon and chlorpyrifos in runoff to San Diego Creek and Upper Newport Bay. The amendment establishes load and wasteload allocations for San Diego Creek as listed in Table 1. Table 1: Load and Wasteload Allocations for San Diego Creek Diazinon (ng/L) Chlorpyrifos (ng/L) Acute Chronic Acute Chronic 72 45 18 12.6 The amendment establishes load and wasteload allocations for Upper Newport Bay as listed in Table 2. These apply to chlorpyrifos only. Table 2: Chlorpyrifos Load and Wasteload Allocations for Upper Newport Bay Acute (ng/L) Chronic (ng/L) 18 8.1 The amendment includes an implementation plan that specifies completion of the following four tasks by stakeholders in the watershed and by the Regional Board: (1) Revision of WDR and NPDES discharge permits to include the TMDL allocations; (2) Implementation of monitoring program by the stakeholders in the watershed for diazinon and chlorpyrifos; (3) Development of a pesticide runoff management plan by the Regional Board and the stakeholders in the watershed; (4) Special Studies: the Regional Board will lead studies into the significance of chlorpyrifos atmospheric deposition for Upper Newport Bay and the adequacy of the freshwater allocations for San Diego Creek to protect Upper Newport Bay. s 3978. Summary of Regulatory Provisions -Basin Plan Amendment Revising the Total Dissolved Solids and Nitrate-Nitrogen Management Plan for the Santa Ana Region. Regional Board Resolution No. R8-2004-0001. This Basin Plan amendment establishes revised boundaries for groundwater management zones (formerly termed groundwater "subbasins") throughout the Santa Ana Regional Water Quality Control Board. For each of the new management zones, this amendment identifies existing and potential beneficial use designations, and total dissolved solids (TDS) and nitrate-nitrogen water quality objectives based on historical water quality ( "antidegradation" objectives). For certain management zones, this amendment establishes a second set of TDS and nitrate-nitrogen objectives. This second, less stringent set of objectives is based on the finding that water quality consistent with "maximum benefit to the people of the State" will be maintained (the "maximum benefit" objectives), provided that specific water and wastewater projects and programs are implemented. These project and program commitments are delineated in the revised Implementation Plan in the Basin Plan amendment (see below). The "maximum benefit" objectives apply unless the Regional Board finds that the maximum benefit project and program commitments are not being implemented and that the finding of maximum benefit cannot continue to be made. In that case, the "antidegradation" objectives would apply. To address this situation, the amendment specifies that mitigation for TDS and nitrate-nitrogen discharges in excess of discharge limitations based on the antidegradation objectives will be required. The amendment also revises the narrative water quality objectives for chloride, TDS, hardness, sodium, and sulfate applicable to groundwater. The Basin Plan amendment establishes revised reach boundaries and revised numeric TDS and nitrate-nitrogen water quality objectives for the following surface water bodies: San Timoteo Creek, Chino Creek and Temescal Creek. For San Timoteo Creek, Reach 1A, the groundwater recharge designated use is deleted. No other changes to the beneficial use designations for these surface waters are included in the amendment. The amendment establishes the Prado Basin Management Zone as a surface water feature. Beneficial uses and surface water quality objectives already established for the major tributary streams in the Prado Basin Management Zone apply for regulatory purposes. This Basin Plan amendment incorporates revisions to the TDS and Nitrogen Implementation Plan, including the following provisions: revised wasteload allocations for Publicly Owned Treatment Works discharges of nitrogen and TDS to the Santa Ana River and tributaries; revised findings regarding nitrogen and TDS assimilative capacity in the new groundwater management zones; findings regarding nitrogen loss coefficients and their implementation in waste discharge requirements; special considerations for salt management of subsurface disposal system discharges; and monitoring program requirements. For the agencies and dischargers that are implementing the "maximum benefit" TDS and nitrate-nitrogen objectives, the amendment specifies compliance dates for the implementation of certain projects and programs. The amendment also includes requirements for implementing salt reduction programs when management zone TDS and/or nitrate-nitrogen reach specified concentration trigger points. Finally, with regard to the implementation of the "maximum benefit" objectives, the amendment specifies that if the Regional Board determines that the agencies/dischargers have not complied with the specified requirements for implementation of projects/programs, the Regional Board, at a duly noticed public meeting, would make the determination that the lowering of water quality is not of "maximum benefit" to the people of the State and by default, the TDS and nitrate-nitrogen historical "antidegradation" objectives would apply. The Basin Plan amendment specifies that in this situation, the Regional Board will require mitigation for TDS and nitrate-nitrogen discharges in excess of waste discharge limitations based on the antidegradation objectives. s 3979. Establish Nutrient Total Maximum Daily Loads (TMDLs) for Lake Elsinore and Canyon Lake in the Water Quality Control Plan (Basin Plan) for the Santa Ana Region. On December 20, 2004, the Santa Ana Regional Water Quality Control Board adopted Resolution No. R8-2004-0037 to amend Chapter 5 of the Basin Plan to incorporate a nutrient TMDL for the control of nitrogen and phosphorus as factors contributing to the excessive algae growth and low dissolved oxygen in Lake Elsinore and Canyon Lake. The TMDL is intended to achieve compliance with existing Basin Plan water quality objectives to prevent excessive algae growth and low dissolved oxygen. The Basin Plan amendment specifies final numeric targets for total phosphorus and total nitrogen for both Lake Elsinore and Canyon Lake and also specifies interim and final numeric targets for chlorophyll a and dissolved oxygen for both lakes. Monitoring these parameters will provide a method of tracking improvements in water quality resulting from reduction in the loading of nitrogen and phosphorus. The Basin Plan amendment specifies final TMDL wasteload allocations for point source discharges and load allocations for nonpoint source discharges for total nitrogen and total phosphorus for both Lake Elsinore and Canyon Lake. Finally, the Basin Plan amendment specifies an implementation plan for nutrient reduction in both lakes, which includes compliance schedules to meet interim numeric targets as soon as possible, but not later than 2015, and the final numeric targets by 2020, as well as a monitoring program to track progress toward compliance. The amendment includes a brief description of the Lake Elsinore/San Jacinto watershed and the existing conditions contributing to water quality eutrophication problems. Lake Elsinore and Canyon Lake nutrient TMDL numeric targets, load capacity (nutrient TMDLs), wasteload allocations, load allocations, implementation tasks, and compliance dates, margin of safety, plus seasonal variations/critical conditions are discussed. s 3979.1. Basin Plan Amendment Establishing Total Maximum Daily Loads for Bacterial Indicators in the Middle Santa Ana River Watershed. The Basin Plan amendment modifies the regulatory provisions of the Water Quality Control Plan for the Santa Ana Region by establishing Total Maximum Daily Loads (TMDLs) for bacterial indicators discharged to impaired water bodies in the Middle Santa Ana River watershed, including the Santa Ana River, Reach 3; Chino Creek, Reaches 1 and 2; Mill Creek (Prado Area); Cucamonga Creek (Valley Reach); and Prado Park Lake. The TMDLs address impairment due to bacterial indicators in the Middle Santa Ana River watershed in a prioritized phased approach. Compliance with objectives to protect water contact recreation are to be achieved no later than December 31, 2015 during the dry season and no later than December 31, 2025 during the wet season. Density-based allocations are assigned for urban discharges, agricultural discharges, and natural or open space discharges. These allocations are expected to be implemented through requirements imposed by the Santa Ana Regional Water Quality Control Board in waste discharge requirements and/or conditional waivers of waste discharge requirements. The TMDLs will be re-evaluated and revised, if appropriate, based on monitoring results and relevant studies required by the TMDL implementation plan. These studies include source evaluation and characterization, watershed-wide water quality monitoring, water contact recreation beneficial use assessments, and alternative bacterial indicator evaluations. Based on the results of these investigations, plans for achieving the TMDLs are to be developed by the stakeholders. Revision of the TMDLs would occur through the Basin Plan amendment process. s 3980. Escondido Hydrologic Subarea, Amendment. This amendment to the Comprehensive Water Quality Control Plan for the San Diego Region (Basin Plan) relaxes the ground water quality objectives for total dissolved solids (TDS) from 750 milligrams per liter (mg/l) to 1,000 mg/l and for sulfate from 300 mg/l to 400 mg/l in the Escondido Hydrologic Subarea (HSA) (HSA 4.62). s 3981. Total Dissolved Solids and Boron Groundwater Quality Objectives for the Pauba and Wolf Hydrologic Subareas. Resolution No. 94-09 of the California Water Quality Control Board, San Diego Region, "A Resolution Adopting Amendments to the Comprehensive Water Quality Control Plan for the San Diego Region, Portions of the Pauba (2.51) and Wolf (2.52) Hydrologic Subareas", relaxed the ground water quality objectives for total dissolved solids and boron in the downstream portions of Pauba (2.51) and Wolf (2.52) Hydrologic Subareas to 750 mg/l for total dissolved solids and 0.75 mg/l for boron. s 3982. Beneficial Uses and Ground Water Quality Objectives. The following are changes to the Comprehensive Water Quality Control Plan for the San Diego Basin (Basin Plan): (1) Subdivided the Laguna Hydrologic Area (HA) (HA 901.10), Mission Viejo HA (HA 901.20), and San Clemente HA (HA 901.30) into hydrologic subareas (HSAs), (2) Relaxed ground water quality objectives for total dissolved solids (TDS) and boron in the San Joaquin Hills HSA (HSA 901.11), (3) Relaxed ground water quality objectives for TDS, nitrate, and boron in the Laguna Beach HSA (HSA 901.12), (4) Established more stringent ground water quality objectives for TDS, chloride, sulfate, and boron and designated the municipal and agricultural beneficial uses in the Aliso Creek HSA (HSA 901.13), (5) Established ground water quality objectives for TDS, chloride, sulfate, percent sodium, nitrate, iron, manganese, methylene blue active substances (MBAS), boron, turbidity, color, and fluoride and designated the agricultural beneficial uses in the Dana Point HSA (HSA 901.13), (6) Relaxed ground water quality objectives for TDS, chloride, sulfate, and boron in the Oso Creek HSA (HSA 901.21), Middle Trabuco HSA (HSA 901.23), Gobernadora HSA (HSA 901.24), Middle San Juan Creek HSA (HSA 901.26), Lower San Juan Creek HSA (HSA 901.27), and Ortega HSA (HSA 901.28), (7) Relaxed ground water quality objectives for TDS, chloride, sulfate, and boron in the Prima Desheca HSA (HSA 901.31), and (8) Established ground water quality objectives for TDS, chlorides, sulfate, percent sodium, nitrate, iron, manganese, MBAS, boron, odor, turbidity, color, and fluoride in the Segunda Desheca HSA (HSA 901.32). s 3983. Revised Water Quality Control Plan for the San Diego Region. The revised Water Quality Control Plan (Basin Plan) for the San Diego Region, as adopted September 10, 1994, by the San Diego Regional Water Quality Control Board, per Resolution No. 94-10 changes the regulatory provisions of the previous Basin Plan and its amendments as follows: (a) Beneficial Use Categories and Definitions: Add definitions for "Aquaculture," "Estuarine Habitat" and "Marine Habitat." Revise beneficial use category definitions previously incorporated: Municipal and Domestic Supply" (MUN); Agricultural Supply", "Industrial Process Supply," "Ground Water Recharge," "Freshwater Replenishment," "Navigation", "Contract Water Recreation," "Non-contact Water Recreation," "Cold Freshwater Habitat," "Wildlife Habitat," "Preservation of Biological Habitats of Special Significance," "Rare, Threatened, and Endangered Species," "Migration of Aquatic Organisms," "Spawning, Reproduction, and/or Early Development," and "Shellfish Harvesting." (b) Water Body Type Definitions: Add definitions for "inland surface waters", "ground water", and "coastal waters" (including ocean waters, enclosed bays, and estuaries). (c) Inland Surface Waters, enclosed bays and estuaries, coastal lagoons, and ground waters: (1) Revise coliform concentration objective for waters designated for shellfish harvesting (SHELL); (2) Revise water quality objective for biostimulatory substances; (3) Amend numerical objective for boron; (4) Add narrative objective for natural color of fish; (5) Revise water quality objectives for inorganic chemicals for waters designated MUN; (6) Revise water quality objectives for chemical constituents for waters designated MUN; (7) Add maximum contaminant level numeric objective for toluene for waters designated MUN; (8) Add narrative objective for taste and odor of shellfish or other water resources used for human consumption; (9) Add numeric water quality objectives for toxic pollutants; (10) Add numeric objective for trihalomethanes in waters designated as MUN; (d) Discharge Prohibitions: (1) Add principles for issuing or reviewing general waste discharge permits; (2) Add prohibition for discharge of waste to waters of the state; (3) Add prohibition for discharge of waste to land; (4) Add prohibition for discharge of pollutants or dredge and fill material to waters of the United States; (5) Amend prohibition for discharge of treated or untreated waste to water bodies designated for MUN use; (6) Amend prohibition for discharge of waste to inland surface waters; (7) Amend prohibition for discharge of waste resulting in flow, ponding, or surfacing on lands not under control of the discharger; (8) Amend prohibition for dumping, deposition, or discharge of waste directly into waters of the state; (9) Add prohibition for any discharge to a storm water conveyance not composed entirely of "stormwater"; (10) Amend prohibition for unauthorized discharge of treated or untreated sewage to waters of the state; (11) Add prohibition for discharge of industrial wastes to conventional septic tank/subsurface disposal systems; (12) Add prohibition for discharge of any radiological, chemical, or biological warfare agent; (13) Amend prohibition for discharge of earthen materials from any activity which results in deleterious bottom deposits, turbidity, or discoloration in waters of the state, (14) Add prohibition for discharge of treated or untreated sewage from vessels to Oceanside Harbor, and Dana Point Harbor; and (16) Revise prohibition for discharge of treated and untreated sewage to San Diego Bay. (e) Water reclamation: (1) Add master requirements for suppliers or distributors of reclaimed water; (2) Add criteria for an exception to biostimulatory substances water quality objective for discharges to coastal water lagoons from pilot water reclamation projects; (3) Add alternative method of showing compliance with biostimulatory substances water quality objectives for inland surface waters downstream of lakes or reservoirs used for municipal water supply; (4) Revise the methodology for determining reclaimed water effluent limits; (5) Add policy regarding consideration of water Reclamation as an alternative to ocean disposal; (6) Add requirements for reclaimed water storage. (f) Enforcement Actions: (1) Add criteria for selection of the appropriate enforcement action in response to an incident of noncompliance; (2) Add provision on enforcement actions against operators of Navy vessels. (g) Add policy for regulation of individual domestic subsurface disposal systems, community sewerage systems, and alternative systems. (h) Add provisions on testing to determine alternative for disposal of dredged material. (i) Add policy for cleanup and abatement of contaminated soil and ground water. s 3984. Total Dissolved Solids Ground Water Quality Objective for the Poway (6.2) Hydrologic Area. Regional Board Resolution No. 94-139, adopted on October 13, 1994, by the San Diego Regional Water Quality Control Board, modified the regulatory provisions of the Water Quality Control Plan (Basin Plan) for the San Diego Basin by relaxing the ground water quality objective for total dissolved solids from 750 milligrams per liter (mg/l) to 1,000 mg/l in the Poway (6.2) Hydrologic Area. s 3985. Total Dissolved Solids Ground Water Quality Objective for the Moosa (903.13) and Valley Center (903.14) Hydrologic Subareas. Regional Board Resolution No. 95-48, adopted on May 16, 1995, by the San Diego Regional Water Quality Control Board, modified the regulatory provisions of the Water Quality Control Plan (Basin Plan) for the San Diego Region by relaxing the ground water quality objective for total dissolved solids in the alluvial aquifer from 800 milligrams per liter (mg/l) to 1,200 mg/l in the Moosa Hydrologic Subarea (HSA) (HSA 903.13) and from 800 mg/l to 1,100 mg/l in the Valley Center HSA (HSA 903.14). s 3986. Suspension of Enforcement of Effluent Limitations for Water Reclamation Projects Due to Water Supply Considerations. Regional Board Resolution No. 95-95, adopted on October 12, 1995, by the San Diego Regional Water Quality Control Board (SDRWQCB), modified the regulatory provisions of the Water Quality Control Plan (Basin Plan) for the San Diego Region by establishing conditions whereby the SDRWQCB may authorize the Executive Officer to suspend formal enforcement of effluent limitations for water reclamation projects due to water supply considerations. s 3987. Exception to the Prohibition of Discharges of Recycled Wastewater to Surface Water Bodies Used for Municipal Water Supply. Regional Board Resolution No. 96-30, adopted on May 9, 1996, by the San Diego Regional Water Quality Control Board (SDRWQCB), modified the regulatory provisions of the Water Quality Control Plan for the San Diego Region by establishing conditions whereby the SDRWQCB may grant an exception to the prohibition against the discharge of recycled water to lakes or reservoirs used for municipal water supply, or to their inland surface water tributaries. s 3988. Revision of Beneficial Use Designations for Spawning/Reproduction, and/or Early Development and Cold Freshwater Habitat. Regional Board Resolution No. 97-04 adopted on March 12, 1997 by the San Diego Regional Water Quality Control Board, modified the regulatory provisions of the Water Quality Control Plan for the San Diego Region by: (1) revising the beneficial use definition for "Spawning, Reproduction, and/or Early Development (SPWN)", (2) designating the SPWN beneficial use in 76 water body segments, (3) designating the "Cold Freshwater Habitat (COLD)" beneficial use in 55 water body segments, and (4) deleting the COLD beneficial use designation from 68 water body segments. s 3989. Incorporating a Waste Discharge Requirement Waiver Policy for Certain Specific Types of Discharges. The Policy waives waste discharge requirements for waste discharges if the Regional Board has determined that they are not against the public interest, and if they adhere to the stated mandated conditions. For each specific type of discharge, it was determined that it would not be against the public interest under one or more of the following circumstances: 1) the type of discharge is effectively regulated by other public agencies; 2) the type of discharge does not adversely affect the quality or the beneficial uses of the waters of the State; or 3) the type of discharge is not readily amenable to regulation through adoption of waste discharge requirements, but warrants Regional Board oversight to ensure compliance with the mandated conditions. Each type of discharge included in the Policy is classified into one of two categories based on the degree of potential threat to water quality and/or beneficial uses of affected water bodies. For Category 1 waivers, waste discharge requirements for a specific discharge shall be considered waived only after enrollment in accord with procedures established by the Regional Board. The Regional Board will determine compliance with the Category 1 waiver conditions using a program that includes on-site inspections and/or review of the records of the public agencies that regulate these discharges. For Category 2 waivers, enrollment is not necessary. The Regional Board will assess compliance with Category 2 waiver conditions by means of surveys or other indirect methods. s 3989.1. Total Maximum Daily Load (TMDL) For Diazinon in the Chollas Creek Watershed, San Diego County. The TMDL addresses toxicity in Chollas Creek caused by the pesticide diazinon. The concentration-based numeric targets and TMDL for diazinon were set equal to the California Department of Fish and Game freshwater Water Quality Criteria for diazinon. The acute Water Quality Criterion of 0.08mg/L protects aquatic life from short-term exposure to diazinon, while the chronic criterion of 0.05mg/L protects aquatic life from long-term diazinon exposure. The concentration-based wasteload and load allocations of this TMDL were assigned equally to all diazinon discharge sources in the Chollas Creek Watershed. All allocations were set at 90 percent of the numeric targets resulting in a diazinon allocation equal to 0.072mg/L under acute exposure conditions (one-hour average) and a diazinon allocation of 0.045mg/L under chronic exposure conditions (four-day average). Frequency of allowed exceedances are set at once every three years on the average. These allocations include an explicit 10 percent margin of safety to account for uncertainties in the TMDL analysis and represent approximately a 90 percent reduction from current loads. The responsible parties are the Cities of San Diego, Lemon Grove, and La Mesa, the San Diego Unified Port District, the County of San Diego, and the California Department of Transportation. These entities are responsible for implementation of the TMDL and for reduction of their diazinon discharges. The Regional Board will revise the San Diego Municipal Separate Storm Sewer System Permit to make it consistent with the wasteload and load allocation part of this TMDL. Compliance with numeric limitations for diazinon will be required in accordance with a phased schedule of compliance. s 3989.2. Total Maximum Daily Load for Dissolved Copper in Shelter Island Yacht Basin. Resolution No. R9-2005-0019, adopted on February 9, 2005 by the San Diego Regional Water Quality Control Board (San Diego Water Board), modified the regulatory provisions of the Water Quality Control Plan for the San Diego Basin by establishing a Total Maximum Daily Load (TMDL) for Dissolved Copper in Shelter Island Yacht Basin (SIYB), San Diego Bay. The TMDL addresses toxicity in SIYB caused primarily by copper-based antifouling paints. The numeric targets were set equal to water quality criteria for dissolved copper as set forth by the U.S. Environmental Protection Agency in the California Toxics Rule to protect aquatic life from acute and chronic toxicity. The numeric target for dissolved copper is 3.1 micrograms/liter (mg/L) for continuous or chronic exposure (4-day average) and 4.8 mg/L (1-hour average) for maximum or acute exposures, not to be exceeded more than once every three years. The TMDL was calculated to be 567 kilograms/year of dissolved copper, amounting to a 76 percent reduction in current loading from copper-based antifouling paints. Most of the load reduction will be required from passive leaching, as well as to a lesser extent from underwater hull cleaning of copper-based antifouling paints. The dischargers responsible for meeting the copper reductions and allocations are the San Diego Unified Port District, marina owners and operators at SIYB, boat owners at SIYB, underwater hull cleaners at SIYB, and the City of San Diego. In order to implement the TMDLs, the San Diego Water Board will (1) coordinate with governmental agencies having legal authority over the use of copper-based antifouling paints, which are registered pesticides; (2) regulate the discharge of copper to SIYB waters through the issuance of Waste Discharge Requirements (WDRs), Waivers of WDRs, and/or adoption of Waste Discharge Prohibitions; and (3) amend Order No. 2001-01, "Waste Discharge Requirements for Discharges of Urban Runoff from the Municipal Separate Storm Sewer Systems" to require that discharges of copper into SIYB waters not increase via the City of San Diego's municipal separate storm sewer system from existing loadings. Compliance with the allocations will be required over a 17-year staged compliance schedule. The first stage consists of an initial 2-year orientation period during which no copper load reductions are required. The subsequent 15 year reduction period is comprised of three stages during which incremental copper load reductions are required as shown below. Table 1. Interim Loading Targets for Attainment of the TMDL Estimated Interim Percent Reduction Reduction to Target Loading Time from Current be Attained by (kg/year of Stage Period Estimated Loading End of Year dissolved Cu) Stage 1 Years 1-2 0% N/A N/A Stage 2 Years 2-7 10% 7 1,900 Stage 3 Years 7-12 40% 12 1,300 Stage 4 Years 12-17 76% 17 567 s 3989.3. Total Maximum Daily Load for Total Nitrogen and Total Phosphorus in the Rainbow Creek Watershed. Regional Board Resolution No. R9-2005-0036, adopted on February 9, 2005 by the San Diego Regional Water Quality Control Board, modified the regulatory provisions of the Water Quality Control Plan for the San Diego Region by (1) adding a footnote to Chapter 2 (Beneficial Uses) referencing Rainbow Creek's listing on the Clean Water Act Section 303(d) list, (2) adding text to Chapter 3 (Water Quality Objectives) referencing the 303(d) listing of Rainbow Creek and adoption of the TMDLs implementation plans in Chapter 4 (Implementation), and (3) adding text to Chapter 4 establishing total nitrogen and total phosphorus total maximum daily loads (TMDLs) for Rainbow Creek Watershed. The TMDLs address impairment due to excess nutrients being discharged to the creek from land uses, including agricultural and residential uses, highway runoff, and contaminated groundwater. The numeric targets limit concentrations of nitrate to protect drinking water resources, and total nitrogen and total phosphorus to prevent the development of excessive algae that can lead to eutrophic conditions in Rainbow Creek. Compliance with objectives to protect municipal supply, water contact and non-water contact recreation, and aquatic and wildlife beneficial uses is to be achieved no later than 16 years after U.S. Environmental Protection Agency approval of the TMDLs. Load allocations are assigned for land uses, septic tank disposal systems, and air deposition. Waste load allocations are assigned for highway runoff and unidentified point sources. Reductions will be phased over the compliance period. Implementation includes investigations of groundwater contamination, water quality monitoring, and implementation of best management practices to control runoff. Additional regulatory enforcement options are to be used if necessary. The total nitrogen and total phosphorus TMDLs contain a five percent (5%) explicit margin of safety.