National United States Regulations 40 CFR PART 467—ALUMINUM FORMING POINT SOURCE CATEGORY PART 467—ALUMINUM FORMING POINT SOURCE CATEGORY -------------------------------------------------------------------------------- Authority: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307(b) and (c), 308 and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) and the Water Quality Act of 1987 (the “Act”); 33 U.S.C. 1311, 1314(b), (c), (e), and (g), 1316(b) and (c), 1317(b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92–500; 91 Stat. 1567, Pub. L. 95–217; 101 Stat. 7, Pub. L. 100–4. Source: 48 FR 49149, Oct. 24, 1983, unless otherwise noted. General Provisions top § 467.01 Applicability. top (a) Aluminum forming includes commonly recognized forming operations such as rolling, drawing, extruding, and forging and related operations such as heat treatment, casting, and surface treatments. Surface treatment of aluminum is any chemical or electrochemical treatment applied to the surface of aluminum. Such surface treatment is considered to be a part of aluminum forming whenever it is performed as an integral part of aluminum forming. For the purposes of this regulation, surface treatment of aluminum is considered to be an integral part of aluminum forming whenever it is performed at the same plant site at which aluminum is formed and such operations are not considered for regulation under the Electroplating and Metal Finishing provisions of 40 CFR parts 413 and 433. Casting aluminum when performed as an integral part of aluminum forming and located on-site at an aluminum forming plant is considered an aluminum forming operation and is covered under these guidelines. When aluminum forming is performed on the same site as primary aluminum reduction the casting shall be regulated by the nonferrous metals guidelines if there is no cooling of the aluminum prior to casting. If the aluminum is cooled prior to casting then the casting shall be regulated by the aluminum forming guidelines. (b) This part applies to any aluminum forming facility, except for plants identified under paragraph (c) of this section, which discharges or may discharge pollutants to waters of the United States or which introduces or may introduce pollutants into a publicly owned treatment works. (c) This part is applicable to indirect discharging aluminum forming plants that extrude less than 3 million pounds of product per year and draw, with emulsions or soaps, less than 1 million pounds per year. Note: This paragraph is promulgated as an Interim Final Rule. [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984] § 467.02 General definitions. top In addition to the definitions set forth in 40 CFR part 401, the following definitions apply to this part: (a) Aluminum forming is a set of manufacturing operations in which aluminum and aluminum alloys are made into semifinished products by hot or cold working. (b) Ancillary operation is a manufacturing operation that has a large flow, discharges significant amounts of pollutants, and may not be present at every plant in a subcategory, but when present is an integral part of the aluminum forming process. (c) Contact cooling water is any wastewater which contacts the aluminum workpiece or the raw materials used in forming aluminum. (d) Continuous casting is the production of sheet, rod, or other long shapes by solidifying the metal while it is being poured through an open-ended mold using little or no contact cooling water. Continuous casting of rod and sheet generates spent lubricants and rod casting also generates contact cooling water. (e) Degassing is the removal of dissolved hydrogen from the molten aluminum prior to casting. Chemicals are added and gases are bubbled through the molten aluminum. Sometimes a wet scrubber is used to remove excess chlorine gas. (f) Direct chill casting is the pouring of molten aluminum into a water-cooled mold. Contact cooling water is sprayed onto the aluminum as it is dropped into the mold, and the aluminum ingot falls into a water bath at the end of the casting process. (g) Drawing is the process of pulling metal through a die or succession of dies to reduce the metal's diameter or alter its shape. There are two aluminum forming subcategories based on the drawing process. In the drawing with neat oils subcategory, the drawing process uses a pure or neat oil as a lubricant. In the drawing with emulsions or soaps subcategory, the drawing process uses an emulsion or soap solution as a lubricant. (h) Emulsions are stable dispersions of two immiscible liquids. In the aluminum forming category this is usually an oil and water mixture. (i) Cleaning or etching is a chemical solution bath and a rinse or series of rinses designed to produce a desired surface finish on the workpiece. This term includes air pollution control scrubbers which are sometimes used to control fumes from chemical solution baths. Conversion coating and anodizing when performed as an integral part of the aluminum forming operations are considered cleaning or etching operations. When conversion coating or anodizing are covered here they are not subject to regulation under the provisions of 40 CFR Part 433, Metal Finishing. (j) Extrusion is the application of pressure to a billet of aluminum, forcing the aluminum to flow through a die orifice. The extrusion subcategory is based on the extrusion process. (k) Forging is the exertion of pressure on dies or rolls surrounding heated aluminum stock, forcing the stock to change shape and in the case where dies are used to take the shape of the die. The forging subcategory is based on the forging process. (l) Heat treatment is the application of heat of specified temperature and duration to change the physical properties of the metal. (m) Hot water seal is a heated water bath (heated to approximately 180 °F) used to seal the surface coating on formed aluminum which has been anodized and coated. In establishing an effluent allowance for this operation, the hot water seal shall be classified as a cleaning or etching rinse. (n) In-process control technology is the conservation of chemicals and water throughout the production operations to reduce the amount of wastewater to be discharged. (o) Neat oil is a pure oil with no or few impurities added. In aluminum forming its use is mostly as a lubricant. (p) Rolling is the reduction in thickness or diameter of a workpiece by passing it between lubricated steel rollers. There are two subcategories based on the rolling process. In the rolling with neat oils subcategory, pure or neat oils are used as lubricants for the rolling process. In the rolling with emulsions subcategory, emulsions are used as lubricants for the rolling process. (q) The term Total Toxic Organics (TTO) shall mean the sum of the masses or concentrations of each of the following toxic organic compounds which is found in the discharge at a concentration greater than 0.010 mg/1: p-chloro-m-cresol 2-chlorophenol 2,4-dinitrotoluene 1,2-diphenylhydrazine ethyblenzene fluoranthene isophorone napthalene N-nitro sodi phenyl amine phenol benzo(a) pyrene benzo(ghi)perylene fluorene phenanthrene dibenzo(a,h) anthracene indeno(1,2,3-c,d)pyrene pyrene tetrachloroethylene toluene trichloroethylene endosulfan sulfate bis(2-ethyl hexyl)phthalate diethylphthalate 3,4-benzofluoranthene benzo(k)fluoranthene chrysene acenaphthylene anthracene di-n-butyl phthalate endrin endrin aldehyde PCB–1242, 1254, 1221 PCB–1232, 1248, 1260, 1016 acenaphthene (r) Stationary casting is the pouring of molten aluminum into molds and allowing the metal to air cool. (s) Wet scrubbers are air pollution control devices used to remove particulates and fumes from air by entraining the pollutants in a water spray. (t) BPT means the best practicable control technology currently available under section 304(b)(1) of the Act. (u) BAT means the best available technology economically achievable under section 304(b)(2)(B) of the Act. (v) BCT means the best conventional pollutant control technology, under section 304(b)(4) of the Act. (w) NSPS means new source performance standards under section 306 of the Act. (x) PSES means pretreatment standards for existing sources, under section 307(b) of the Act. (y) PSNS means pretreatment standards for new sources, under section 307(c) of the Act. (z) The production normalizing mass (/kkg) for each core or ancillary operation is the mass (off-kkg or off-lb) processed through that operation. (aa) The term off-kilogram (off-pound) shall mean the mass of aluminum or aluminum alloy removed from a forming or ancillary operation at the end of a process cycle for transfer to a different machine or process. [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988] § 467.03 Monitoring and reporting requirements. top The following special monitoring and reporting requirements apply to all facilities controlled by this regulation. (a) Periodic analyses for cyanide as may be required under part 122 or 403 of this chapter are not required when both of the following conditions are met: (1) The first wastewater sample of each calender year has been analyzed and found to contain less than 0.07 mg/l cyanide. (2) The owner or operator of the aluminum forming plant certifies in writing to the POTW authority or permit issuing authority that cyanide is not and will not be used in the aluminum forming process. (b) As an alternative monitoring procedure for pretreatment, the POTW user may measure and limit oil and grease to the levels shown in pretreatment standards in lieu of measuring and regulating total toxic organics (TTO). (c) The “monthly average” regulatory values shall be the basis for the monthly average discharge limits in direct discharge permits and for pretreatment standards. Compliance with the monthly discharge limit is required regardless of the number of samples analyzed and averaged. (Information collection requirements in paragraph (a) were approved by the Office of Management and Budget under control number 2040–0033) [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984, as amended at 50 FR 4515, Jan. 31, 1985] § 467.04 Compliance date for PSES. top The compliance date for Pretreatment Standards for Existing Sources (PSES) is October 24, 1986. [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984] § 467.05 Removal allowances for pretreatment standards. top Removal allowances pursuant to 40 CFR 403.7(a) may be granted for the toxic metals limited in 40 CFR part 467 when used as indicator pollutants. [49 FR 11631, Mar. 27, 1984] Subpart A—Rolling With Neat Oils Subcategory top § 467.10 Applicability; description of the rolling with neat oils subcategory. top This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the core and the ancillary operations of the rolling with neat oils subcategory. § 467.11 Specialized definitions. top For the purpose of this subpart: (a) The “core” of the rolling with neat oils subcategory shall include rolling using neat oils, roll grinding, sawing, annealing, stationary casting, homogenizing artificial aging, degreasing, and stamping. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the rolling operation. The ancillary operations shall include continuous rod casting, continuous sheet casting, solution heat treatment, cleaning or etching. § 467.12 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the core operation and for the ancillary operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available: Subpart A Core With an Annealing Furnace Scrubber ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.0360 0.0147 Cyanide..................................... 0.0237 0.0098 Zinc........................................ 0.119 0.0498 Aluminum.................................... 0.525 0.257 Oil and grease.............................. 1.634 0.980 Suspended solids............................ 3.348 1.593 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Core Without an Annealing Furnace Scrubber ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.0244 0.010 Cyanide..................................... 0.0161 0.0067 Zinc........................................ 0.0808 0.0338 Aluminum.................................... 0.356 0.174 Oil and grease.............................. 1.11 0.664 Suspended solids............................ 2.27 1.079 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Continuous Sheet Casting Spent Lubricant ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum sheet cast by continuous methods --------------------------- Chromium.................................... 0.00086 0.00035 Cyanide..................................... 0.00057 0.00024 Zinc........................................ 0.0029 0.0012 Aluminum.................................... 0.0127 0.0063 Oil and grease.............................. 0.0393 0.0236 Suspended solids............................ 0.0805 0.0383 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 3.39 1.39 Cyanide..................................... 2.24 0.93 Zinc........................................ 11.25 4.70 Aluminum.................................... 49.55 24.66 Oil and grease.............................. 154.10 92.46 Suspended solids............................ 315.91 150.25 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Bath ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.110 Aluminum.................................... 1.15 0.573 Oil and grease.............................. 3.58 2.15 Suspended solids............................ 7.34 3.49 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Rinse ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 6.12 2.51 Cyanide..................................... 4.04 1.67 Zinc........................................ 20.31 8.49 Aluminum.................................... 89.46 44.52 Oil and grease.............................. 278.24 166.95 Suspended solids............................ 570.39 271.29 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 7.00 2.86 Cyanide..................................... 4.61 1.91 Zinc........................................ 23.22 9.70 Aluminum.................................... 102.24 50.88 Oil and grease.............................. 318.00 190.80 Suspended solids............................ 651.90 310.05 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984] § 467.13 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The mass of pollutants in the core and ancillary operations' process wastewater shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.036 0.015 Cyanide..................................... 0.024 0.0098 Zinc........................................ 0.119 0.050 Aluminum.................................... 0.525 0.257 ------------------------------------------------------------------------ Subpart A Core Without an Annealing Furnace Scrubber ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.025 0.010 Cyanide..................................... 0.016 0.0067 Zinc........................................ 0.081 0.034 Aluminum.................................... 0.356 0.174 ------------------------------------------------------------------------ Subpart A Continuous Sheet Casting Spent Lubricant ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum sheet cast --------------------------- Chromium.................................... 0.00086 0.00035 Cyanide..................................... 0.00057 0.00024 Zinc........................................ 0.00287 0.0012 Aluminum.................................... 0.0127 0.0062 ------------------------------------------------------------------------ Subpart A Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.897 0.367 Cyanide..................................... 0.591 0.245 Zinc........................................ 2.974 1.243 Aluminum.................................... 13.10 6.518 ------------------------------------------------------------------------ Subpart A Cleaning or Etching Bath ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 Aluminum.................................... 1.151 0.573 ------------------------------------------------------------------------ Subpart A Cleaning or Etching Rinse ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.612 0.251 Cyanide..................................... 0.404 0.167 Zinc........................................ 2.031 0.849 Aluminum.................................... 8.944 4.45 ------------------------------------------------------------------------ Subpart A Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.851 0.348 Cyanide..................................... 0.561 0.232 Zinc........................................ 2.822 1.179 Aluminum.................................... 12.43 6.186 ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984] § 467.14 New source performance standards. top Any new source subject to this subpart must achieve the following performance standards. The mass of pollutants in the core and ancillary operations' process wastewater shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.030 0.0123 Cyanide..................................... 0.016 0.0065 Zinc........................................ 0.084 0.0343 Aluminum.................................... 0.499 0.221 Oil and grease.............................. 0.817 0.817 Suspended solids............................ 1.225 0.980 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Core Without an Annealing Furnace Scrubber ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.021 0.0083 Cyanide..................................... 0.011 0.0044 Zinc........................................ 0.057 0.023 Aluminum.................................... 0.338 0.150 Oil and grease.............................. 0.553 0.553 Suspended solids............................ 0.830 0.664 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Continuous Sheet Casting Spent Lubricant ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.00073 0.00029 Cyanide..................................... 0.00039 0.00016 Zinc........................................ 0.0020 0.00082 Aluminum.................................... 0.012 0.0053 Oil and grease.............................. 0.0197 0.019 Suspended solids............................ 0.0295 0.022 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.76 0.31 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.08 0.86 Aluminum.................................... 12.45 5.52 Oil and grease.............................. 20.37 20.37 Suspended solids............................ 30.56 24.45 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Bath ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.066 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 Aluminum.................................... 1.094 0.485 Oil and grease.............................. 1.79 1.79 Suspended solids............................ 2.69 2.15 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Rinse ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.52 0.21 Cyanide..................................... 0.28 0.11 Zinc........................................ 1.42 0.59 Aluminum.................................... 8.50 3.70 Oil and grease.............................. 13.91 13.91 Suspended solids............................ 20.87 16.69 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart A Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.715 0.29 Cyanide..................................... 0.387 0.16 Zinc........................................ 1.97 0.81 Aluminum.................................... 11.81 5.24 Oil and grease.............................. 19.33 19.33 Suspended solids............................ 29.00 23.20 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984] § 467.15 Pretreatment standards for existing sources. top Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber ------------------------------------------------------------------------ PSES ----------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils ----------------------------- Chromium.................................. 0.036 0.015 Cyanide................................... 0.024 0.010 Zinc...................................... 0.119 0.050 TTO....................................... 0.057 .............. Oil and grease (alternate monitoring 4.3 2.1 parameter)............................... ------------------------------------------------------------------------ Subpart A Core Without an Annealing Furnace Scrubber ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.025 0.010 Cyanide..................................... 0.016 0.007 Zinc........................................ 0.081 0.034 TTO......................................... 0.038 ............ Oil and grease (alternate monitoring 2.9 1.5 parameter)................................. ------------------------------------------------------------------------ Subpart A Continuous Sheet Casting Lubricant ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.00086 0.00035 Cyanide..................................... 0.00057 0.00024 Zinc........................................ 0.0029 0.0012 TTO......................................... 0.0014 ............ Oil and grease (alternate monitoring 0.10 0.052 parameter)................................. ------------------------------------------------------------------------ Subpart A Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.90 0.37 Cyanide..................................... 0.59 0.25 Zinc........................................ 2.98 1.25 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Bath ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 9.3 4.7 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Rinse ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.61 0.25 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.03 0.85 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 73 36 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.85 0.35 Cyanide..................................... 0.56 0.23 Zinc........................................ 2.82 1.18 TTO......................................... 1.34 ............ Oil and grease (alternate monitoring 100 50 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984, as amended at 53 FR 52369 and 52370, Dec. 27, 1988] § 467.16 Pretreatment standards for new sources. top Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.030 0.013 Cyanide..................................... 0.017 0.007 Zinc........................................ 0.084 0.035 TTO......................................... 0.057 ............ Oil and grease (alternate monitoring 0.817 0.817 parameter)................................. ------------------------------------------------------------------------ Subpart A Core Without an Annealing Furnace Scrubber ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils --------------------------- Chromium.................................... 0.021 0.009 Cyanide..................................... 0.011 0.005 Zinc........................................ 0.057 0.024 TTO......................................... 0.038 ............ Oil and grease (alternate monitoring 0.54 0.54 parameter)................................. ------------------------------------------------------------------------ Subpart A Continuous Sheet Casting Lubricant ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.00073 0.00029 Cyanide..................................... 0.00039 0.00016 Zinc........................................ 0.0020 0.00082 TTO......................................... 0.0014 ............ Oil and grease (alternate monitoring 0.020 0.020 parameter)................................. ------------------------------------------------------------------------ Subpart A Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.76 0.31 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.08 0.86 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 20.37 20.37 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Bath ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 1.79 1.79 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Rinse ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------- Chromium.................................... 0.52 0.21 Cyanide..................................... 0.28 0.11 Zinc........................................ 1.42 0.59 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 13.91 13.91 parameter)................................. ------------------------------------------------------------------------ Subpart A Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.72 0.29 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.97 0.81 TTO......................................... 1.34 ............ Oil and grease (alternate monitoring 19.33 19.33 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984] § 467.17 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] top Subpart B—Rolling With Emulsions Subcategory top § 467.20 Applicability; description of the rolling with emulsions subcategory. top This subpart applies to dischargers of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core and the ancillary operations of the rolling with emulsions subcategory. § 467.21 Specialized definitions. top For the purpose of this subpart: (a) The “core” of the rolling with emulsions subcategory shall include rolling using emulsions, roll grinding, stationary casting, homogenizing, artificial aging, annealing, and sawing. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the rolling operation. The ancillary operations shall include direct chill casting, solution heat treatment, cleaning or etching, and degassing. § 467.22 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Subpart B Core ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions --------------------------- Chromium.................................... 0.057 0.024 Cyanide..................................... 0.038 0.016 Zinc........................................ 0.19 0.079 Aluminum.................................... 0.84 0.416 Oil and grease.............................. 2.60 1.56 Suspended solids............................ 5.33 2.53 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.59 0.24 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.94 0.81 Aluminum.................................... 8.55 4.26 Oil and grease.............................. 26.58 15.95 Suspended solids............................ 54.49 25.92 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ The pH shall be maintained within the range of 7.0 to 10.0 at all times except for those situations when this waste stream is discharged separately and without commingling with any other wastewater in which case the pH shall be within the range of 6.0 to 10.0 at all times. Subpart B Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 3.39 1.39 Cyanide..................................... 2.24 0.93 Zinc........................................ 11.25 4.70 Aluminum.................................... 49.55 24.66 Oil and grease.............................. 154.10 92.46 Suspended solids............................ 315.91 150.25 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Cleaning or Etching Bath ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 Aluminum.................................... 1.15 0.573 Oil and grease.............................. 3.58 2.15 Suspended solids............................ 7.34 3.49 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Cleaning or Etching Rinse ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 6.12 2.51 Cyanide..................................... 4.04 1.67 Zinc........................................ 20.31 8.49 Aluminum.................................... 89.46 44.52 Oil and grease.............................. 278.24 166.95 Suspended solids............................ 570.39 271.29 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 7.00 2.86 Cyanide..................................... 4.61 1.91 Zinc........................................ 23.22 9.70 Aluminum.................................... 102.24 50.88 Oil and grease.............................. 318.00 190.80 Suspended solids............................ 651.90 310.05 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.23 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The discharge of process wastewater pollutants from the core shall not exceed the values set forth below: Subpart B Core ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions --------------------------- Chromium.................................... 0.057 0.024 Cyanide..................................... 0.038 0.016 Zinc........................................ 0.19 0.079 Aluminum.................................... 0.84 0.42 ------------------------------------------------------------------------ Subpart B Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.59 0.24 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.94 0.81 Aluminum.................................... 8.55 4.26 ------------------------------------------------------------------------ Subpart B Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BAT Effluent Limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.90 0.37 Cyanide..................................... 0.59 0.25 Zinc........................................ 2.98 1.25 Aluminum.................................... 13.10 6.52 ------------------------------------------------------------------------ Subpart B Cleaning or Etching Bath ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.26 0.109 Aluminum.................................... 1.15 0.573 ------------------------------------------------------------------------ Subpart B Cleaning or Etching Rinse ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.61 0.25 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.03 0.85 Aluminum.................................... 8.95 4.45 ------------------------------------------------------------------------ Subpart B Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.85 0.35 Cyanide..................................... 0.56 0.23 Zinc........................................ 2.82 1.18 Aluminum.................................... 12.43 6.19 ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11633, Mar. 27, 1984] § 467.24 New source performance standards. top Any new source subject to this subpart must achieve the following performance standards. The discharge of process wastewater pollutants from the core shall not exceed the values set forth below: Subpart B Core ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions --------------------------- Chromium.................................... 0.048 0.020 Cyanide..................................... 0.026 0.011 Zinc........................................ 0.133 0.055 Aluminum.................................... 0.80 0.35 Oil and grease.............................. 1.30 1.30 Suspended solids............................ 1.95 1.56 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast by semicontinuo us methods --------------------------- Chromium.................................... 0.49 0.20 Cyanide..................................... 0.27 0.11 Zinc........................................ 1.36 0.56 Aluminum.................................... 8.12 3.60 Oil and grease.............................. 13.29 13.29 Suspended solids............................ 19.94 15.95 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ The pH shall be maintained within the range of 7.0 to 10.0 at all times except for those situations when this waste stream is discharged separately and without commingling with any other wastewater in which case the pH shall be within the range of 6.0 to 10.0 at all times. Subpart B Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.76 0.31 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.08 0.86 Aluminum.................................... 12.45 5.52 Oil and grease.............................. 20.37 20.37 Suspended solids............................ 30.56 24.45 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Cleaning or Etching Bath ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 Aluminum.................................... 1.094 0.485 Oil and grease.............................. 1.79 1.79 Suspended solids............................ 2.69 2.15 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Cleaning or Etching Rinse ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.52 0.21 Cyanide..................................... 0.28 0.11 Zinc........................................ 1.42 0.59 Aluminum.................................... 8.50 3.77 Oil and grease.............................. 13.91 13.91 Suspended solids............................ 20.87 16.70 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart B Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.72 0.29 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.97 0.81 Aluminum.................................... 11.81 5.24 Oil and grease.............................. 19.33 19.33 Suspended solids............................ 29.00 23.20 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11633, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.25 Pretreatment standards for existing sources. top Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the following values: Subpart B Core ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions --------------------------- Chromium.................................... 0.057 0.024 Cyanide..................................... 0.038 0.016 Zinc........................................ 0.190 0.079 TTO......................................... 0.090 ............ Oil and grease (alternate monitoring 6.8 3.4 parameter)................................. ------------------------------------------------------------------------ Subpart B Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast by semi- continuous methods --------------------------- Chromium.................................... 0.59 0.24 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.94 0.81 TTO......................................... 0.92 ............ Oil and grease (alternate monitoring 69 35 parameter)................................. ------------------------------------------------------------------------ Subpart B Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.90 0.37 Cyanide..................................... 0.59 0.25 Zinc........................................ 2.98 1.25 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart B Cleaning or Etching Bath ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 9.3 4.7 parameter)................................. ------------------------------------------------------------------------ Subpart B Cleaning or Etching Rinse ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.61 0.25 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.03 0.85 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 73 36 parameter)................................. ------------------------------------------------------------------------ Subpart B Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.85 0.35 Cyanide..................................... 0.56 0.23 Zinc........................................ 2.83 1.18 TTO......................................... 1.34 ............ Oil and grease (alternate monitoring 100 50 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, and 11633, Mar. 27, 1984, as amended at 53 FR 52369 and 52370, Dec. 27, 1988] § 467.26 Pretreatment standards for new sources. top Except as provided in §403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of process wastewater pollutants from the core and ancillary operations introduced into a POTW shall not exceed the values set forth below: Subpart B Core ------------------------------------------------------------------------ PSNS ----------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/ million off- lbs) of aluminum rolled with emulsions ----------------------------- Chromium.................................. 0.048 0.020 Cyanide................................... 0.026 0.011 Zinc...................................... 0.133 0.055 TTO....................................... 0.090 ............. Oil and grease (alternate monitoring 1.30 1.30 parameter)............................... ------------------------------------------------------------------------ Subpart B Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast by semicontinuo us methods --------------------------- Chromium.................................... 0.49 0.20 Cyanide..................................... 0.27 0.11 Zinc........................................ 1.36 0.56 TTO......................................... 0.92 ............ Oil and grease (alternate monitoring 13.29 13.29 parameter)................................. ------------------------------------------------------------------------ Subpart B Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.76 0.31 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.08 0.86 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 20.37 20.37 parameter)................................. ------------------------------------------------------------------------ Subpart B Cleaning or Etching Bath ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 1.79 1.79 parameter)................................. ------------------------------------------------------------------------ Subpart B Cleaning or Etching Rinse ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.52 0.21 Cyanide..................................... 0.28 0.11 Zinc........................................ 1.42 0.59 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 13.91 13.91 parameter)................................. ------------------------------------------------------------------------ Subpart B Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.72 0.29 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.97 0.81 TTO......................................... 1.34 ............ Oil and grease (alternate monitoring 19.33 19.33 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984] § 467.27 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] top Subpart C—Extrusion Subcategory top § 467.30 Applicability; description of the extrusion subcategory. top This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core and the ancillary operations of the extrusion subcategory. § 467.31 Specialized definitions. top For the purpose of this subpart: (a) The “core” of the extrusion subcategory shall include extrusion die cleaning, dummy block cooling, stationary casting, artificial aging, annealing, degreasing, and sawing. (b) The term “extrusion die cleaning” shall mean the process by which the steel dies used in extrusion of aluminum are cleaned. The term includes a dip into a concentrated caustic bath to dissolve the aluminum followed by a water rinse. It also includes the use of a wet scrubber with the die cleaning operation. (c) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the extrusion operation. The ancillary operations shall include direct chill casting, press or solution heat treatment, cleaning or etching, degassing, and extrusion press hydraulic fluid leakage. § 467.32 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available: Subpart C Core ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum extruded --------------------------- Chromium.................................... 0.16 0.066 Cyanide..................................... 0.11 0.044 Zinc........................................ 0.53 0.22 Aluminum.................................... 2.34 1.16 Oil and grease.............................. 7.32 4.39 Suspended solids............................ 15.0 7.13 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Extrusion Press Leakage ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum extruded --------------------------- Chromium.................................... 0.65 0.27 Cyanide..................................... 0.43 0.18 Zinc........................................ 2.16 0.90 Aluminum.................................... 9.51 4.73 Oil and grease.............................. 29.56 17.74 Suspended solids............................ 60.60 28.82 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ With the range of 7.0 to 10.0 at all times. Subpart C Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.59 0.24 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.94 0.81 Aluminum.................................... 8.55 4.26 Oil and grease.............................. 26.58 15.95 Suspended solids............................ 54.49 25.92 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ The pH shall be maintained within the range of 7.0 to 10.0 at all times except for those situations when this waste stream is discharged separately and without commingling with any other wastewater in which case the pH shall be within the range of 6.0 to 10.0 at all times. Subpart C Press Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 3.39 1.39 Cyanide..................................... 2.24 0.93 Zinc........................................ 11.25 4.70 Aluminum.................................... 49.55 24.66 Oil and grease.............................. 154.10 92.46 Suspended solids............................ 315.91 150.25 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 3.39 1.39 Cyanide..................................... 2.24 0.93 Zinc........................................ 11.25 4.70 Aluminum.................................... 49.55 24.66 Oil and grease.............................. 154.10 92.46 Suspended solids............................ 315.91 150.25 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Cleaning or Etching Bath ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.26 0.109 Aluminum.................................... 1.15 0.573 Oil and grease.............................. 3.58 2.15 Suspended solids............................ 7.34 3.49 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Cleaning or Etching Rinse ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 6.12 2.51 Cyanide..................................... 4.04 1.67 Zinc........................................ 20.31 8.49 Aluminum.................................... 89.46 44.52 Oil and grease.............................. 278.24 166.95 Suspended solids............................ 570.39 271.29 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 7.00 2.86 Cyanide..................................... 4.61 1.91 Zinc........................................ 23.22 9.70 Aluminum.................................... 102.24 50.88 Oil and grease.............................. 318.00 190.80 Suspended solids............................ 651.90 310.05 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Degassing Scrubber Liquor ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum degassed --------------------------- Chromium.................................... 1.15 0.47 Cyanide..................................... 0.76 0.32 Zinc........................................ 3.81 1.59 Aluminum.................................... 16.78 8.35 Oil and grease.............................. 52.18 31.31 Suspended solids............................ 106.97 50.88 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11633, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.33 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. top (a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable: (b) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (c) The discharge of wastewater pollutants from the core and ancillary operation except those in (b) of this section, shall not exceed the values set forth below: Subpart C Core ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum extruded --------------------------- Chromium.................................... 0.15 0.061 Cyanide..................................... 0.098 0.041 Zinc........................................ 0.49 0.21 Aluminum.................................... 2.19 1.09 ------------------------------------------------------------------------ Subpart C Extrusion Press Leakage ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum extruded --------------------------- Chromium.................................... 0.65 0.27 Cyanide..................................... 0.43 0.18 Zinc........................................ 2.16 0.90 Aluminum.................................... 9.51 4.73 ------------------------------------------------------------------------ Subpart C Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.59 0.24 Cyanide..................................... 0.39 0.16 Zinc........................................ 1.94 0.81 Aluminum.................................... 8.55 4.26 ------------------------------------------------------------------------ Subpart C Press Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.90 0.37 Cyanide..................................... 0.59 0.25 Zinc........................................ 2.98 1.25 Aluminum.................................... 13.10 6.52 ------------------------------------------------------------------------ Subpart C Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched ------------------------- Chromium...................................... 0.90 0.37 Cyanide....................................... 0.59 0.25 Zinc.......................................... 2.98 1.25 Aluminum...................................... 13.10 6.52 ------------------------------------------------------------------------ Subpart C Cleaning or Etching Bath ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 Aluminum.................................... 1.15 0.58 ------------------------------------------------------------------------ Subpart C Cleaning or Etching Rinse ------------------------------------------------------------------------ BAT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 1.7 0.7 Cyanide....................................... 1.2 0.5 Zinc.......................................... 5.7 2.4 Aluminum...................................... 25 13 ------------------------------------------------------------------------ Subpart C Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BAT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.85 0.35 Cyanide....................................... 0.56 0.23 Zinc.......................................... 2.82 1.18 Aluminum...................................... 12.43 6.19 ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11633, and 11634, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.34 New source performance standards. top Any new source subject to this subpart must achieve the following performance standards. (a) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (b) The discharge of wastewater pollutants from the core and ancillary operations except those listed in paragraph (a) shall not exceed the values set forth below: Subpart C Core ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum extruded --------------------------- Chromium.................................... 0.13 0.051 Cyanide..................................... 0.068 0.027 Zinc........................................ 0.35 0.14 Aluminum.................................... 2.07 0.92 Oil and grease.............................. 3.39 3.39 Suspended solids............................ 5.10 4.07 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Extrusion Press Leakage ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum extruded --------------------------- Chromium.................................... 0.11 0.045 Cyanide..................................... 0.060 0.024 Zinc........................................ 0.31 0.126 Aluminum.................................... 1.82 0.81 Oil and grease.............................. 2.98 2.98 Suspended solids............................ 4.47 3.58 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ NSPS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast by semicontinu ous methods ------------------------- Chromium...................................... 0.49 0.20 Cyanide....................................... 0.27 0.11 Zinc.......................................... 1.36 0.56 Aluminum...................................... 8.12 3.60 Oil and grease................................ 13.29 13.29 Suspended solids.............................. 19.94 15.95 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ The pH shall be maintained within the range of 7.0 to 10.0 at all times except for those situations when this waste stream is discharged separately and without commingling with any other wastewater in which case the pH shall be within the range of 6.0 to 10.0 at all times. Subpart C Press Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ NSPS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched ------------------------- Chromium...................................... 0.76 0.31 Cyanide....................................... 0.41 0.17 Zinc.......................................... 2.08 0.86 Aluminum...................................... 12.45 5.52 Oil and grease................................ 20.37 20.37 Suspended solids.............................. 30.56 24.45 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.76 0.31 Cyanide..................................... 0.41 0.17 Zinc........................................ 2.08 0.86 Aluminum.................................... 12.45 5.52 Oil and grease.............................. 20.37 20.37 Suspended solids............................ 30.56 24.45 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Cleaning or Etching Bath ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 Aluminum.................................... 1.094 0.485 Oil and grease.............................. 1.79 1.79 Suspended solids............................ 2.69 2.15 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Cleaning or Etching Rinse ------------------------------------------------------------------------ NSPS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.52 0.21 Cyanide....................................... 0.28 0.11 Zinc.......................................... 1.42 0.59 Aluminum...................................... 8.50 3.77 Oil and grease................................ 13.91 13.91 Suspended solids.............................. 20.87 16.70 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart C Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ NSPS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.72 0.29 Cyanide....................................... 0.39 0.16 Zinc.......................................... 1.97 0.81 Aluminum...................................... 11.81 5.24 Oil and grease................................ 19.33 19.33 Suspended solids.............................. 29.00 23.20 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11634, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.35 Pretreatment standards for existing sources. top (a) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. (b) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (c) The mass of wastewater pollutants from the core and ancillary operations except those identified in paragraph (b), introduced into a POTW shall not exceed the following values: Subpart C Core ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of extruded --------------------------- Chromium.................................... 0.15 0.061 Cyanide..................................... 0.098 0.041 Zinc........................................ 0.49 0.21 TTO......................................... 0.23 ............ Oil and grease (alternate monitoring 18 8.8 parameter)................................. ------------------------------------------------------------------------ Subpart C Extrusion Press Leakage ------------------------------------------------------------------------ PSES ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of extruded ------------------------- Chromium...................................... 0.65 0.27 Cyanide....................................... 0.43 0.18 Zinc.......................................... 2.16 0.90 TTO........................................... 1.02 ........... Oil and grease (alternate monitoring 77 39 parameter)................................... ------------------------------------------------------------------------ Subpart C Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ PSES ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast ------------------------- Chromium...................................... 0.59 0.24 Cyanide....................................... 0.39 0.16 Zinc.......................................... 1.94 0.81 TTO........................................... 0.92 ........... Oil and grease (alternate monitoring 69 35 parameter)................................... ------------------------------------------------------------------------ Subpart C Press Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.90 0.37 Cyanide..................................... 0.59 0.25 Zinc........................................ 2.98 1.25 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart C Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.90 0.37 Cyanide..................................... 0.59 0.25 Zinc........................................ 2.98 1.25 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart C Cleaning or Etching Bath ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.26 0.109 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 9.3 4.7 parameter)................................. ------------------------------------------------------------------------ Subpart C Cleaning or Etching Rinse ------------------------------------------------------------------------ PSES ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 1.7 0.7 Cyanide....................................... 1.2 0.5 Zinc.......................................... 5.7 2.4 TTO........................................... 2.7 ........... Oil & Grease (alternate monitoring 200 100 parameter)................................... ------------------------------------------------------------------------ Subpart C Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSES ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.85 0.35 Cyanide....................................... 0.56 0.23 Zinc.......................................... 2.82 1.18 TTO........................................... 1.34 ........... Oil and grease (alternate monitoring 100 50 parameter)................................... ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633 and 11634, Mar. 27, 1984, as amended at 53 FR 52369–52371, Dec. 27, 1988] § 467.36 Pretreatment standards for new sources. top (a) Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. (b) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (c) The mass of wastewater pollutants from the core and ancillary operations except those identified in paragraph (b) introduced into a POTW shall not exceed the values set forth below: Subpart C Core ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of extruded ------------------------- Chromium...................................... 0.13 0.05 Cyanide....................................... 0.07 0.03 Zinc.......................................... 0.35 0.15 TTO........................................... 0.24 ........... Oil and grease (alternate monitoring 3.40 3.40 parameter)................................... ------------------------------------------------------------------------ Subpart C Extrusion Press Leakage ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of hard alloy aluminum extruded ------------------------- Chromium...................................... 0.11 0.05 Cyanide....................................... 0.06 0.03 Zinc.......................................... 0.31 0.13 TTO........................................... 0.21 ........... Oil and grease (alternate monitoring 2.98 2.98 parameter)................................... ------------------------------------------------------------------------ Subpart C Direct Chill Casting Contact Cooling Water ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast ------------------------- Chromium...................................... 0.49 0.20 Cyanide....................................... 0.27 0.11 Zinc.......................................... 1.36 0.56 TTO........................................... 0.92 ........... Oil and grease (alternate monitoring 13.29 13.29 parameter)................................... ------------------------------------------------------------------------ Subpart C Press Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched ------------------------- Chromium...................................... 0.76 0.31 Cyanide....................................... 0.41 0.17 Zinc.......................................... 2.08 0.86 TTO........................................... 1.41 ........... Oil and grease (alternate monitoring 20.37 20.37 parameter)................................... ------------------------------------------------------------------------ Subpart C Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million- off-lbs) of aluminum quenched ------------------------- Chromium...................................... 0.76 0.31 Cyanide....................................... 0.41 0.17 Zinc.......................................... 2.08 0.86 TTO........................................... 1.41 ........... Oil and grease (alternate monitoring 20.37 20.37 parameter)................................... ------------------------------------------------------------------------ Subpart C Cleaning or Etching Bath ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million- off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.067 0.027 Cyanide....................................... 0.036 0.015 Zinc.......................................... 0.183 0.075 TTO........................................... 0.124 ........... Oil and grease (alternate monitoring 1.79 1.79 parameter)................................... ------------------------------------------------------------------------ Subpart C Cleaning or Etching Rinse ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million- off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.52 0.21 Cyanide....................................... 0.28 0.11 Zinc.......................................... 1.42 0.59 TTO........................................... 0.96 ........... Oil and grease (alternate monitoring 13.91 13.91 parameter)................................... ------------------------------------------------------------------------ Subpart C Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million- off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.72 0.29 Cyanide....................................... 0.39 0.16 Zinc.......................................... 1.97 0.81 TTO........................................... 1.34 ........... Oil and grease (alternate monitoring 19.33 19.33 parameter)................................... ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, and 11634, Mar. 27, 1984] § 467.37 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] top Subpart D—Forging Subcategory top § 467.40 Applicability; description of the forging subcategory. top This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core of the forging subcategory and the ancillary operations. § 467.41 Specialized definitions. top For the purpose of this subpart: (a) The “core” of the forging subcategory shall include forging, artificial aging, annealing, degreasing, and sawing. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the forging operation. The ancillary operations shall include forging air pollution scrubbers, solution heat treatment, and cleaning or etching. § 467.42 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. [Reserved] top § 467.43 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. [Reserved] top § 467.44 New source performance standards. top Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core shall not exceed the values set forth below: Subpart D Core ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum forged --------------------------- Chromium.................................... 0.019 0.008 Cyanide..................................... 0.010 0.004 Zinc........................................ 0.051 0.021 Aluminum.................................... 0.305 0.135 Oil and grease.............................. 0.50 0.50 Suspended solids............................ 0.75 0.60 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart D Forging Scrubber Liquor ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum forged --------------------------- Chromium.................................... 0.035 0.014 Cyanide..................................... 0.019 0.008 Zinc........................................ 0.096 0.04 Aluminum.................................... 0.576 0.256 Oil and grease.............................. 0.943 0.95 Suspended solids............................ 1.42 1.13 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart D Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ NSPS -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched -------------------------- Chromium..................................... 0.76 0.31 Cyanide...................................... 0.41 0.163 Zinc......................................... 2.08 0.86 Aluminum..................................... 12.45 5.52 Oil and grease............................... 20.37 20.37 Suspended solids............................. 30.56 24.45 pH........................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart D Cleaning or Etching Bath ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.066 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 Aluminum.................................... 1.094 0.485 Oil and grease.............................. 1.79 1.79 Suspended solids............................ 2.69 2.15 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart D Cleaning or Etching Rinse ------------------------------------------------------------------------ NSPS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.52 0.21 Cyanide....................................... 0.28 0.11 Zinc.......................................... 1.42 0.59 Aluminum...................................... 8.5 3.77 Oil and grease................................ 13.91 13.91 Suspended solids.............................. 20.87 16.69 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart D Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ NSPS -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched -------------------------- Chromium..................................... 0.72 0.29 Cyanide...................................... 0.39 0.155 Zinc......................................... 1.97 0.812 Aluminum..................................... 11.81 5.24 Oil and grease............................... 19.33 19.33 Suspended solids............................. 29.00 23.20 pH........................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11635, Mar. 27, 1984] § 467.45 Pretreatment standards for existing sources. top Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduced pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart D Core ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum forged --------------------------- Chromium.................................... 0.022 0.009 Cyanide..................................... 0.015 0.006 Zinc........................................ 0.073 0.031 TTO......................................... 0.035 ............ Oil and grease (alternate monitoring 2.6 1.3 parameter)................................. ------------------------------------------------------------------------ Subpart D Forging Scrubber Liquor ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum forged --------------------------- Chromium.................................... 0.042 0.017 Cyanide..................................... 0.028 0.011 Zinc........................................ 0.14 0.058 TTO......................................... 0.065 ............ Oil and grease (alternate monitoring 4.9 2.5 parameter)................................. ------------------------------------------------------------------------ Subpart D Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.897 0.37 Cyanide..................................... 0.591 0.25 Zinc........................................ 2.98 1.24 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart D Cleaning or Etching Bath ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.26 0.11 TTO......................................... 0.123 ............ Oil and grease (alternate monitoring 9.3 4.7 parameter)................................. ------------------------------------------------------------------------ Subpart D Cleaning or Etching Rinse ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mb/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 1.7 0.7 Cyanide..................................... 1.2 0.5 Zinc........................................ 5.7 2.4 TTO......................................... 2.7 ............ Oil and grease (alternate monitoring 200 100 parameter)................................. ------------------------------------------------------------------------ Subpart D Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSES -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched -------------------------- Chromium..................................... 0.851 0.35 Cyanide...................................... 0.561 0.23 Zinc......................................... 2.82 1.18 TTO.......................................... 1.34 ........... Oil and grease (alternate monitoring 100 50 parameter).................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, and 11635, Mar. 27, 1984, as amended at 53 FR 52369–52371, Dec. 27, 1988] § 467.46 Pretreatment standards for new sources. top Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart D Core ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum forged --------------------------- Chromium.................................... 0.019 0.008 Cyanide..................................... 0.010 0.004 Zinc........................................ 0.051 0.021 TTO......................................... 0.035 ............ Oil and grease (alternate monitoring 0.50 0.50 parameter)................................. ------------------------------------------------------------------------ Subpart D Forging Scrubber Liquor ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum forged --------------------------- Chromium.................................... 0.035 0.014 Cyanide..................................... 0.019 0.008 Zinc........................................ 0.096 0.040 TTO......................................... 0.065 ............ Oil and grease (alternate monitoring 0.95 0.95 parameter)................................. ------------------------------------------------------------------------ Subpart D Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched ------------------------- Chromium...................................... 0.76 0.31 Cyanide....................................... 0.41 0.16 Zinc.......................................... 2.08 0.86 TTO........................................... 1.41 ........... Oil and grease (alternate monitoring 20.37 20.37 parameter)................................... ------------------------------------------------------------------------ Subpart D Cleaning or Etching Bath ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 1.79 1.79 parameter)................................. ------------------------------------------------------------------------ Subpart D Cleaning or Etching Rinse ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.52 0.21 Cyanide..................................... 0.28 0.11 Zinc........................................ 1.42 0.59 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 13.91 13.91 parameter)................................. ------------------------------------------------------------------------ Subpart D Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSNS -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched -------------------------- Chromium..................................... 0.72 0.29 Cyanide...................................... 0.39 0.16 Zinc......................................... 1.97 0.812 TTO.......................................... 1.34 ............ Oil and grease (alternate monitoring 19.33 19.33 parameter).................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632 and 11633, Mar. 27, 1984] § 467.47 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] top Subpart E—Drawing With Neat Oils Subcategory top § 467.50 Applicability; description of the drawing with neat oils subcategory. top This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core of the drawing with neat oils subcategory and the ancillary operations. § 467.51 Specialized definitions. top For the purpose of this subpart: (a) The “core” of the drawing with neat oils subcategory shall include drawing using neat oils, stationary casting, artificial aging, annealing, degreasing, sawing, and swaging. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the drawing operation. The ancillary operation shall include continuous rod casting, solution heat treatment, and cleaning or etching. § 467.52 Effluent limitations representing the degree of effluent reduction attainable by the application of best practicable control technology currently available. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available: Subpart E Core ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/per million off- lbs) of aluminum drawn with neat oils --------------------------- Chromium.................................... 0.022 0.0090 Cyanide..................................... 0.015 0.0050 Zinc........................................ 0.073 0.031 Aluminum.................................... 0.32 0.160 Oil and grease.............................. 0.97 0.598 Suspended solids............................ 2.04 0.972 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.00086 0.00035 Cyanide..................................... 0.00057 0.00024 Zinc........................................ 0.00287 0.0012 Aluminum.................................... 0.0127 0.0063 Oil and grease.............................. 0.0393 0.0236 Suspended solids............................ 0.0805 0.0383 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart E Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.684 0.28 Cyanide..................................... 0.451 0.187 Zinc........................................ 2.271 0.949 Aluminum.................................... 10.00 4.976 Oil and grease.............................. 31.10 18.66 Suspended solids............................ 63.76 30.322 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched ------------------------- Chromium...................................... 3.39 1.39 Cyanide....................................... 2.24 0.93 Zinc.......................................... 11.25 4.70 Aluminum...................................... 49.55 24.66 Oil and grease................................ 154.10 92.46 Suspended solids.............................. 315.91 150.25 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Cleaning or Etching Bath ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.26 0.11 Aluminum.................................... 1.150 0.57 Oil and grease.............................. 3.58 2.15 Suspended solids............................ 7.34 3.49 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Cleaning or Etching Rinse ------------------------------------------------------------------------ BPT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 6.12 2.51 Cyanide....................................... 4.04 1.67 Zinc.......................................... 20.31 8.49 Aluminum...................................... 89.46 44.52 Oil and grease................................ 278.24 166.95 Suspended solids.............................. 570.39 271.29 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BPT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 7.00 2.86 Cyanide....................................... 4.61 1.91 Zinc.......................................... 23.22 9.70 Aluminum...................................... 102.24 50.88 Oil and grease................................ 318.00 190.8 Suspended solids.............................. 651.90 310.05 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11635, Mar. 27, 1984] § 467.53 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The discharge of wastewater pollutants from the core and ancillary operations shall not exceed the values set forth below: Subpart E Core ------------------------------------------------------------------------ BAT effluent limitations -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils -------------------------- Chromium..................................... 0.022 0.009 Cyanide...................................... 0.015 0.006 Zinc......................................... 0.073 0.031 Aluminum..................................... 0.321 0.16 ------------------------------------------------------------------------ Subpart E Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------ BAT effluent limitations -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast -------------------------- Chromium..................................... 0.00086 0.0004 Cyanide...................................... 0.0006 0.0002 Zinc......................................... 0.0029 0.0012 Aluminum..................................... 0.0127 0.0063 ------------------------------------------------------------------------ Subpart E Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.086 0.035 Cyanide..................................... 0.056 0.024 Zinc........................................ 0.283 0.118 Aluminum.................................... 1.247 0.621 ------------------------------------------------------------------------ Subpart E Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched -------------------------- Chromium..................................... 0.896 0.367 Cyanide...................................... 0.591 0.245 Zinc......................................... 2.974 1.243 Aluminum..................................... 13.10 6.519 ------------------------------------------------------------------------ Subpart E Cleaning or Etching Bath ------------------------------------------------------------------------ BAT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.079 0.032 Cyanide....................................... 0.052 0.022 Zinc.......................................... 0.262 0.109 Aluminum...................................... 1.151 0.563 ------------------------------------------------------------------------ Subpart E Cleaning or Etching Rinse ------------------------------------------------------------------------ BAT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.612 0.251 Cyanide....................................... 0.404 0.167 Zinc.......................................... 2.031 0.849 Aluminum...................................... 8.944 4.451 ------------------------------------------------------------------------ Subpart E Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.851 0.348 Cyanide..................................... 0.561 0.232 Zinc........................................ 2.82 1.179 Aluminum.................................... 12.43 6.19 ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11635, Mar. 27, 1984] § 467.54 New source performance standards. top Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core and ancillary operations shall not exceed the values set forth below: Subpart E Core ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils --------------------------- Chromium.................................... 0.019 0.008 Cyanide..................................... 0.010 0.004 Zinc........................................ 0.051 0.021 Aluminum.................................... 0.304 0.135 Oil and grease.............................. 0.498 0.498 Suspended solids............................ 0.747 0.598 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.0008 0.0003 Cyanide..................................... 0.0004 0.0002 Zinc........................................ 0.002 0.0008 Aluminum.................................... 0.012 0.006 Oil and grease.............................. 0.02 0.02 Suspended solids............................ 0.03 0.024 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ NSPS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast ------------------------- Chromium...................................... 0.072 0.029 Cyanide....................................... 0.039 0.016 Zinc.......................................... 0.198 0.082 Aluminum...................................... 1.185 0.526 Oil and grease................................ 1.939 1.939 Suspended solids.............................. 2.909 2.327 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.754 0.306 Cyanide..................................... 0.408 0.163 Zinc........................................ 2.08 0.856 Aluminum.................................... 12.45 5.52 Oil and grease.............................. 20.37 20.37 Suspended solids............................ 30.56 24.45 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Cleaning or Etching Bath ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.066 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 Aluminum.................................... 1.094 0.485 Oil and grease.............................. 1.79 1.79 Suspended solids............................ 2.69 2.15 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Cleaning or Etching Rinse ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.515 0.209 Cyanide..................................... 0.278 0.111 Zinc........................................ 1.42 0.584 Aluminum.................................... 8.50 3.77 Oil and grease.............................. 13.91 13.91 Suspended solids............................ 20.87 16.70 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart E Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.715 0.290 Cyanide..................................... 0.387 0.155 Zinc........................................ 1.97 0.812 Aluminum.................................... 11.81 5.24 Oil and grease.............................. 19.33 19.33 Suspended solids............................ 29.00 23.20 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11635, Mar. 27, 1984] § 467.55 Pretreatment standards for existing sources. top Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart E Core ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils --------------------------- Chromium.................................... 0.022 0.009 Cyanide..................................... 0.015 0.006 Zinc........................................ 0.073 0.031 TTO......................................... 0.035 ............ Oil and grease (alternate monitoring 2.6 1.3 parameter)................................. ------------------------------------------------------------------------ Subpart E Continuous Rod Casting Lubricant ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.0009 0.0004 Cyanide..................................... 0.0006 0.0003 Zinc........................................ 0.0029 0.0012 TTO......................................... 0.0014 ............ Oil and grease (alternate monitoring 0.10 0.052 parameter)................................. ------------------------------------------------------------------------ Subpart E Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ PSES ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast ------------------------- Chromium...................................... 0.086 0.035 Cyanide....................................... 0.057 0.023 Zinc.......................................... 0.283 0.118 TTO........................................... 0.133 ........... Oil and grease (alternate monitoring 10 5.1 parameter)................................... ------------------------------------------------------------------------ Subpart E Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.896 0.367 Cyanide..................................... 0.591 0.245 Zinc........................................ 2.98 1.24 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart E Cleaning or Etching Bath ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.033 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 9.3 4.7 parameter)................................. ------------------------------------------------------------------------ Subpart E Cleaning or Etching Rinse ------------------------------------------------------------------------ PSES -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched -------------------------- Chromium..................................... 0.612 0.251 Cyanide...................................... 0.404 0.17 Zinc......................................... 2.03 0.85 TTO.......................................... 0.96 ............ Oil and grease (alternate monitoring 73 36 parameter).................................. ------------------------------------------------------------------------ Subpart E Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.851 0.348 Cyanide..................................... 0.561 0.232 Zinc........................................ 2.82 1.18 TTO......................................... 1.34 ............ Oil and grease (alternate monitoring 100 50 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, and 11635, Mar. 27, 1984, as amended at 53 FR 52369–52372, Dec. 27, 1988] § 467.56 Pretreatment standards for new sources. top Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart E Core ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils --------------------------- Chromium.................................... 0.019 0.008 Cyanide..................................... 0.010 0.004 Zinc........................................ 0.051 0.021 TTO......................................... 0.035 ............ Oil and grease (alternate monitoring 0.50 0.50 parameter)................................. ------------------------------------------------------------------------ Subpart E Continuous Rod Casting Lubricant ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.0007 0.0003 Cyanide..................................... 0.0004 0.0002 Zinc........................................ 0.0020 0.0008 TTO......................................... 0.0014 ............ Oil and grease (alternate monitoring 0.020 0.020 parameter)................................. ------------------------------------------------------------------------ Subpart E Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.072 0.029 Cyanide..................................... 0.039 0.016 Zinc........................................ 0.198 0.134 TTO......................................... ............ 0.082 Oil and grease (alternate monitoring 1.94 1.94 parameter)................................. ------------------------------------------------------------------------ Subpart E Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched -------------------------- Chromium..................................... 0.76 0.306 Cyanide...................................... 0.41 0.163 Zinc......................................... 2.08 0.856 TTO.......................................... 1.41 ............ Oil and grease (alternate monitoring 20.37 20.37 parameter).................................. ------------------------------------------------------------------------ Subpart E Cleaning or Etching Bath ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 1.79 1.79 parameter)................................. ------------------------------------------------------------------------ Subpart E Cleaning or Etching Rinse ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.52 0.21 Cyanide....................................... 0.28 0.11 Zinc.......................................... 1.42 0.59 TTO........................................... 0.96 ........... Oil and grease (alternate monitoring 13.91 13.91 parameter)................................... ------------------------------------------------------------------------ Subpart E Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSNS -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched -------------------------- Chromium..................................... 0.72 0.29 Cyanide...................................... 0.39 0.16 Zinc......................................... 1.97 0.812 TTO.......................................... 1.34 ............ Oil and grease (alternate monitoring 19.33 19.33 parameter).................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, and 11635, Mar. 27, 1984] § 467.57 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] top Subpart F—Drawing With Emulsions or Soaps Subcategory top § 467.60 Applicability; description of the drawing with emulsions or soaps subcategory. top This subpart applies to discharges of pollutants to waters of the United States and introduction of pollutants into publicly owned treatment works from the core and the ancillary operations of the drawing with emulsions or soaps subcategory. § 467.61 Specialized definitions. top For the purpose of this subpart: (a) The “core” of the drawing with emulsions or soaps subcategory shall include drawing using emulsions or soaps, stationary casting, artificial aging, annealing, degreasing, sawing, and swaging. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the drawing operation. The ancillary operations shall include continuous rod casting, solution heat treatment and cleaning or etching. § 467.62 Effluent limitations representing the degree of effluent reduction attainable by the application of best practicable control technology currently available. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available: Subpart F Core ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps --------------------------- Chromium.................................... 0.205 0.084 Cyanide..................................... 0.135 0.056 Zinc........................................ 0.680 0.285 Aluminum.................................... 3.00 1.50 Oil and grease.............................. 9.33 5.60 Suspended solids............................ 19.12 9.10 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\Within the range of 7.0 to 10 at all times. Subpart F Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.0009 0.0004 Cyanide..................................... 0.0006 0.0003 Zinc........................................ 0.0029 0.001 Aluminum.................................... 0.013 0.007 Oil and grease.............................. 0.040 0.024 Suspended solids............................ 0.081 0.039 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\Within the range of 7.0 to 10 at all times. Subpart F Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cast --------------------------- Chromium.................................... 0.684 0.28 Cyanide..................................... 0.450 0.187 Zinc........................................ 2.27 0.949 Aluminum.................................... 10.00 4.976 Oil and grease.............................. 31.10 18.66 Suspended solids............................ 63.76 30.323 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\Within the range of 7.0 to 10 at all times. Subpart F Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BPT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched ------------------------- Chromium...................................... 3.39 1.39 Cyanide....................................... 2.24 0.93 Zinc.......................................... 11.25 4.70 Aluminum...................................... 49.55 24.66 Oil and grease................................ 154.10 92.46 Suspended solids.............................. 315.91 150.25 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart F Cleaning or Etching Bath ------------------------------------------------------------------------ BPT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.109 Aluminum.................................... 1.15 0.573 Oil and grease.............................. 3.58 2.15 Suspended solids............................ 7.34 3.49 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart F Cleaning or Etching Rinse ------------------------------------------------------------------------ BPT effluent limitations -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched -------------------------- Chromium..................................... 6.12 2.51 Cyanide...................................... 4.04 1.67 Zinc......................................... 20.31 8.49 Aluminum..................................... 89.46 44.519 Oil and grease............................... 278.24 166.95 Suspended solids............................. 570.39 271.29 pH........................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. Subpart F Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BPT effluent limitations ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 7.00 2.86 Cyanide....................................... 4.61 1.91 Zinc.......................................... 23.22 9.70 Aluminum...................................... 102.24 50.88 Oil and grease................................ 318.00 190.80 Suspended solids.............................. 651.90 310.05 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11635, Mar. 27, 1984] § 467.63 Effluent limitations representing the degree of effluent reduction attainable by the application of best available technology economically achievable. top Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The discharge of wastewater pollutants from the core shall not exceed the volumes set forth below: Subpart F Core ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps --------------------------- Chromium.................................... 0.205 0.084 Cyanide..................................... 0.135 0.056 Zinc........................................ 0.681 0.285 Aluminum.................................... 3.00 1.49 ------------------------------------------------------------------------ Subpart F Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------ BAT effluent limitations -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast -------------------------- Chromium..................................... 0.0009 0.0004 Cyanide...................................... 0.0006 0.0003 Zinc......................................... 0.0029 0.0012 Aluminum..................................... 0.013 0.0063 ------------------------------------------------------------------------ Subpart F Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.086 0.035 Cyanide..................................... 0.056 0.024 Zinc........................................ 0.283 0.118 Aluminum.................................... 1.25 0.62 ------------------------------------------------------------------------ Subpart F Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ BAT effluent limitations -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched -------------------------- Chromium..................................... 0.897 0.37 Cyanide...................................... 0.591 0.25 Zinc......................................... 2.98 1.24 Aluminum..................................... 13.10 6.52 ------------------------------------------------------------------------ Subpart F Cleaning or Etching Bath ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.11 Aluminum.................................... 1.15 0.57 ------------------------------------------------------------------------ Subpart F Cleaning or Etching Rinse ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.612 0.251 Cyanide..................................... 0.404 0.167 Zinc........................................ 2.03 0.849 Aluminum.................................... 8.95 4.45 ------------------------------------------------------------------------ Subpart F Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ BAT effluent limitations --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.85 0.348 Cyanide..................................... 0.561 0.232 Zinc........................................ 2.82 1.18 Aluminum.................................... 12.43 6.19 ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, and 11636, Mar. 27, 1984] § 467.64 New source performance standards. top Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core shall not exceed the values set forth below: Subpart F Core ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps --------------------------- Chromium.................................... 0.173 0.070 Cyanide..................................... 0.094 0.038 Zinc........................................ 0.476 0.196 Aluminum.................................... 2.85 1.27 Oil and grease.............................. 4.67 4.67 Suspended solids............................ 7.00 5.60 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart F Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.0008 0.0003 Cyanide..................................... 0.0004 0.0002 Zinc........................................ 0.0020 0.0008 Aluminum.................................... 0.012 0.0053 Oil and grease.............................. 0.020 0.020 Suspended solids............................ 0.030 0.024 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart F Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.072 0.029 Cyanide..................................... 0.039 0.016 Zinc........................................ 0.198 0.081 Aluminum.................................... 1.184 0.526 Oil and grease.............................. 1.940 1.940 Suspended solids............................ 2.91 2.33 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart F Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ NSPS -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched -------------------------- Chromium..................................... 0.754 0.31 Cyanide...................................... 0.408 0.16 Zinc......................................... 2.08 0.86 Aluminum..................................... 12.450 5.52 Oil and grease............................... 20.37 20.37 Suspended solids............................. 20.56 24.45 pH........................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart F Cleaning or Etching Bath ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.066 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 Aluminum.................................... 1.094 0.49 Oil and grease.............................. 1.79 1.79 Suspended solids............................ 2.69 2.15 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart F Cleaning or Etching Rinse ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.515 0.21 Cyanide..................................... 0.278 0.11 Zinc........................................ 1.42 0.59 Aluminum.................................... 8.50 3.77 Oil and grease.............................. 13.91 13.91 Suspended solids............................ 20.87 16.70 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. Subpart F Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ NSPS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.72 0.290 Cyanide..................................... 0.387 0.155 Zinc........................................ 1.97 0.812 Aluminum.................................... 1.18 5.24 Oil and grease.............................. 19.33 19.33 Suspended solids............................ 29.00 23.20 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11636, Mar. 27, 1984] § 467.65 Pretreatment standards for existing sources. top Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart F Core ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps --------------------------- Chromium.................................... 0.205 0.084 Cyanide..................................... 0.135 0.056 Zinc........................................ 0.681 0.285 TTO......................................... 0.32 ............ Oil and grease (alternate monitoring 25 12 parameter)................................. ------------------------------------------------------------------------ Subpart F Continuous Rod Casting Lubricant ------------------------------------------------------------------------ PSES -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast -------------------------- Chromium..................................... 0.0009 0.0004 Cyanide...................................... 0.0006 0.0003 Zinc......................................... 0.0029 0.0012 TTO.......................................... 0.0014 ............ Oil and grease (alternate monitoring 0.10 0.052 parameter).................................. ------------------------------------------------------------------------ Subpart F Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.086 0.035 Cyanide..................................... 0.056 0.024 Zinc........................................ 0.283 0.119 TTO......................................... 0.134 ............ Oil and grease (alternate monitoring 10 5.1 parameter.................................. ------------------------------------------------------------------------ Subpart F Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthy any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched --------------------------- Chromium.................................... 0.896 0.367 Cyanide..................................... 0.591 0.245 Zinc........................................ 2.98 1.25 TTO......................................... 1.41 ............ Oil and grease (alternate monitoring 110 53 parameter)................................. ------------------------------------------------------------------------ Subpart F Cleaning or Etching Bath ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthy any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.079 0.032 Cyanide..................................... 0.052 0.022 Zinc........................................ 0.262 0.11 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 9.3 4.7 parameter)................................. ------------------------------------------------------------------------ Subpart F Cleaning or Etching Rinse ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthy any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.612 0.251 Cyanide..................................... 0.404 0.167 Zinc........................................ 2.03 0.849 TTO......................................... 0.96 ............ Oil and grease (alternate monitoring 73 36 parameter)................................. ------------------------------------------------------------------------ Subpart F Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSES --------------------------- Pollutant or pollutant property Maximum for Maximum for monthy any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.851 0.348 Cyanide..................................... 0.561 0.232 Zinc........................................ 2.82 1.18 TTO......................................... 1.33 ............ Oil and grease (alternate monitoring 100 50 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632 and 11636, Mar. 27, 1984, as amended at 53 FR 52369–52372, Dec. 27, 1988] § 467.66 Pretreatment standards for new sources. top Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in aluminum forming process wastewaters introduced into a POTW shall not exceed the values set forth below: Subpart F Core ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps --------------------------- Chromium.................................... 0.173 0.070 Cyanide..................................... 0.094 0.038 Zinc........................................ 0.48 0.196 TTO......................................... 0.32 ............ Oil and grease (alternate monitoring 4.67 4.67 parameter)................................. ------------------------------------------------------------------------ Subpart F Continuous Rod Casting Lubricant ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.0008 0.0003 Cyanide..................................... 0.0004 0.0002 Zinc........................................ 0.0020 0.0008 TTO......................................... 0.0014 ............ Oil and grease (alternate monitoring 0.020 0.020 parameter)................................. ------------------------------------------------------------------------ Subpart F Continuous Rod Casting Contact Cooling Water ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum rod cast --------------------------- Chromium.................................... 0.072 0.029 Cyanide..................................... 0.039 0.016 Zinc........................................ 0.198 0.082 TTO......................................... 0.134 ............ Oil and grease (alternate monitoring 1.94 1.94 parameter)................................. ------------------------------------------------------------------------ Subpart F Solution Heat Treatment Contact Cooling Water ------------------------------------------------------------------------ PSNS -------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum quenched -------------------------- Chromium..................................... 0.76 0.306 Cyanide...................................... 0.41 0.163 Zinc......................................... 2.08 0.856 TTO.......................................... 1.41 ............ Oil and grease (alternate monitoring 20.37 20.37 parameter).................................. ------------------------------------------------------------------------ Subpart F Cleaning or Etching Bath ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.067 0.027 Cyanide..................................... 0.036 0.015 Zinc........................................ 0.183 0.075 TTO......................................... 0.124 ............ Oil and grease (alternate monitoring 1.79 1.79 parameter)................................. ------------------------------------------------------------------------ Subpart F Cleaning or Etching Rinse ------------------------------------------------------------------------ PSNS ------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched ------------------------- Chromium...................................... 0.52 0.21 Cyanide....................................... 0.28 0.11 Zinc.......................................... 1.42 0.59 TTO........................................... 0.96 ........... Oil and grease (alternate monitoring 13.91 13.91 parameter)................................... ------------------------------------------------------------------------ Subpart F Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------ PSNS --------------------------- Pollutant or pollutant property Maximum for Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched --------------------------- Chromium.................................... 0.715 0.290 Cyanide..................................... 0.387 0.155 Zinc........................................ 1.97 0.812 TTO......................................... 1.34 ............ Oil and grease (alternate monitoring 19.33 19.33 parameter)................................. ------------------------------------------------------------------------ [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, and 11636, Mar. 27, 1984] § 467.67 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]