Loading (50 kb)...'

(continued)
effective date of
10/14/98.
Chapter 23_Emission Standards for Contaminants
----------------------------------------------------------------------------------------------------------------
567-23.1........................ Emission Standards..... 10/14/98 5/22/00, 65 FR 32031 Subrules 23.1(2)-(5)
are not SIP
approved.
567-23.2........................ Open Burning........... 1/14/04 11/3/04, 69 FR 63947 Subrule 23.2(3)g(2)
was not submitted
for approval.
Variances from open
burning rule
23.2(2) are subject
to EPA approval.
567-23.3........................ Specific Contaminants.. 12/15/04 5/2/05, 70 FR 22599 Subrule 23.3(3)
``d'' is not SIP
approved.
567-23.4........................ Specific Processes..... 7/21/99 3/04/02, 67 FR 9593 Subrule 23.4(10) is
not SIP approved.
----------------------------------------------------------------------------------------------------------------
Chapter 24_Excess Emissions
----------------------------------------------------------------------------------------------------------------
567-24.1........................ Excess Emission 5/13/98 5/22/00, 65 FR 32031
Reporting.
567-24.2........................ Maintenance and Repair 3/14/90 6/29/90, 55 FR 26690
Requirements.
----------------------------------------------------------------------------------------------------------------
Chapter 25_Measurement of Emissions
----------------------------------------------------------------------------------------------------------------
567-25.1........................ Testing and Sampling of 7/13/05 12/20/05, 70 FR
New and Existing 75399
Equipment.
----------------------------------------------------------------------------------------------------------------
Chapter 26_Prevention of Air Pollution Emergency Episodes
----------------------------------------------------------------------------------------------------------------
567-26.1........................ General................ 3/14/90 6/29/90, 55 FR 26690
567-26.2........................ Episode Criteria....... 3/14/90 6/29/90, 55 FR 26690
567-26.3........................ Preplanned Abatement 3/14/90 6/29/90, 55 FR 26690
Strategies.
567-26.4........................ Actions During Episodes 3/14/90 6/29/90, 55 FR 26690
----------------------------------------------------------------------------------------------------------------
Chapter 27_Certificate of Acceptance
----------------------------------------------------------------------------------------------------------------
567-27.1........................ General................ 3/14/90 6/29/90, 55 FR 26690
567-27.2........................ Certificate of 3/14/90 6/29/90, 55 FR 26690
Acceptance.
567-27.3........................ Ordinance or 3/14/90 6/29/90, 55 FR 26690
Regulations.
567-27.4........................ Administrative 3/14/90 6/29/90, 55 FR 26690
Organization.
567-27.5........................ Program Activities..... 3/14/90 6/29/90, 55 FR 26690
----------------------------------------------------------------------------------------------------------------
Chapter 28_Ambient Air Quality Standards
----------------------------------------------------------------------------------------------------------------
567-28.1........................ Statewide Standards.... 3/14/90 6/29/90, 55 FR 26690
----------------------------------------------------------------------------------------------------------------
Chapter 29_Qualification in Visual Determination of the Opacity of Emissions
----------------------------------------------------------------------------------------------------------------
567-29.1........................ Methodology and 5/13/98 5/22/00, 65 FR 32031
Qualified Observer.
----------------------------------------------------------------------------------------------------------------
Chapter 31_Nonattainment Areas
----------------------------------------------------------------------------------------------------------------
567-31.1........................ Permit Requirements 2/22/95 10/23/97, 62 FR
Relating to 55172
Nonattainment Areas.
567-31.2........................ Conformity of General 5/13/98 5/22/00, 65 FR 32031
Federal Actions to the
Iowa SIP or Federal
Implementation Plan.
----------------------------------------------------------------------------------------------------------------
Linn County
----------------------------------------------------------------------------------------------------------------
Chapter 10...................... Linn County Air Quality 03/01/05 08/16/05, 70 FR 10.2, Definitions of
Ordinance, Chapter 10. 48073 Federally
Enforceable,
Maximum Achievable
Control Technology
(MACT), and MACT
floor; 10.4(1),
Title V Permits;
10.9(2), NSPS;
10.9(3), Emission
Standards for HAPs;
10.9(4), Emission
Standards for HAPs
for Source
Categories; 10.11,
Emission of
objectionable
odors; and, 10.15,
Variances are not a
part of the SIP.
----------------------------------------------------------------------------------------------------------------
Polk County
----------------------------------------------------------------------------------------------------------------
CHAPTER V....................... Polk County Board of 1/6/04 3/30/05, 70 FR 16126 Article I, Section 5-
Health Rules and 2, definition of
Regulations Air ``variance'';
Pollution Chapter V. Article VI,
Sections 5-16(n),
(o) and (p);
Article VIII,
Article IX,
Sections 5-27(3)
and (4); Article
XIII, and Article
XVI, Section 5-75
(b) are not a part
of the SIP.
----------------------------------------------------------------------------------------------------------------


(d) EPA-approved State source-specific orders/permits.


EPA-Approved Iowa Source-Specific Orders/Permits
----------------------------------------------------------------------------------------------------------------
State
Name of source Order/permit No. effective EPA approval date Explanation
date
----------------------------------------------------------------------------------------------------------------
(1) Archer-Daniels Midland 90-AQ-10............ 3/25/91 11/1/91, 56 FR 56158.
Company.
(2) Interstate Power Company..... 89-AQ-04............ 2/21/90 11/1/91, 56 FR 56158.
(3) Grain Processing Corporation. 74-A-015-S.......... 9/18/95 12/1/97, 62 FR 63454.
(4) Grain Processing Corporation. 79-A-194-S.......... 9/18/95 12/1/97, 62 FR 63454.
(5) Grain Processing Corporation. 79-A-195-S.......... 9/18/95 12/1/97, 62 FR 63454.
(6) Grain Processing Corporation. 95-A-374............ 9/18/95 12/1/97, 62 FR 63454.
(7) Muscatine Power and Water.... 74-A-175-S.......... 9/14/95 12/1/97, 62 FR 63454.
(8) Muscatine Power and Water.... 95-A-373............ 9/14/95 12/1/97, 62 FR 63454.
(9) Monsanto Corporation......... 76-A-161S3.......... 7/18/96 12/1/97, 62 FR 63454.
(10) Monsanto Corporation........ 76-A-265S3.......... 7/18/96 12/1/97, 62 FR 63454.
(11) IES Utilities, Inc.......... 97-AQ-20............ 11/20/98 3/11/99, 64 FR 12090 SO2 Control Plan for
Cedar Rapids.
(12) Archer-Daniels-Midland SO2 Emissions 9/14/98 3/11/99, 64 FR 12090 ADM Corn Processing
Corporation. Control Plan. SO2 Control Plan for
Cedar Rapids.
(13) Linwood Mining and Minerals 98-AQ-07............ 3/13/98 3/18/99, 64 FR 13346 PM10 control plan for
Corporation. Buffalo.
(14) Lafarge Corporation......... 98-AQ-08............ 3/13/98 3/18/99, 64 FR 13346 PM10 control plan for
Buffalo.
(15) Holnam, Inc................. A.C.O. 1999-AQ-31... 9/2/99 11/06/02, 67 FR 67565 For a list of the 47
permits issued for
individual emission
points see IDNR
letters to Holnam,
Inc., dated 7/24/01.
(16) Holnam, Inc................. Consent Amendment to 5/16/01 11/06/02, 67 FR 67565 For a list of the 47
A.C.O. 1999-AQ-31. permits issued for
individual emission
points see IDNR
letters to Holnam,
Inc., dated 7/24/01.
(17) Holnam, Inc................. Permits for 17-01- 7/24/01 11/06/02, 67 FR 67565 For a list of the 47
009, Project Nos. permits issued for
99-511 and 00-468. individual emission
points see IDNR
letters to Holnam,
Inc., dated 7/24/01.
(18) Lehigh Portland Cement A.C.O. 1999-AQ-32... 9/2/99 11/06/02, 67 FR 67565 For a list of the 41
Company. permits issued for
individual emission
points see IDNR
letters to Lehigh
dated 7/24/01 and 2/
18/02.
(19) Lehigh Portland Cement Permits for plant 2/18/02 11/06/02, 67 FR 67565 For a list of the 41
Company. No. 17-01-005, permits issued for
Project Nos. 99-631 individual emission
and 02-037. points see IDNR
letters to Lehigh
dated 7/24/01 and 2/
18/02.
(20) Blackhawk Foundry and A.C.O. 03-AQ-51..... 12/4/2003 6/10/04, 69 FR 32456 Together with the
Machine Company. permits listed below
this order comprises
the PM10 control
strategy for
Davenport, Iowa.
(21) Blackhawk Foundry and Permit No. 02-A-116 8/19/02 6/10/04, 69 FR 32456 Provisions of the
Machine Company. (Cold Box Core permit that relate
Machine). to pollutants other
than PM10 are not
approved by EPA as
part of this SIP.
(22) Blackhawk Foundry and Permit No. 02-A-290 8/19/02 6/10/04, 69 FR 32456 Provisions of the
Machine Company. (Wheelabrator #2 permit that relate
and Casting to pollutants other
Sorting). than PM10 are not
approved by EPA as
part of this SIP.
(23) Blackhawk Foundry and Permit No. 02-A-291 8/19/02 6/10/04, 69 FR 32456 Provisions of the
Machine Company. (Mold Sand Silo). permit that relate
to pollutants other
than PM10 are not
approved by EPA as
part of this SIP.
(24) Blackhawk Foundry and Permit No. 02-A-292 8/19/02 6/10/04, 69 FR 32456 Provisions of the
Machine Company. (Bond Storage). permit that relate
to pollutants other
than PM10 are not
approved by EPA as
part of this SIP.
(25) Blackhawk Foundry and Permit No. 02-A-293 8/19/02 6/10/04, 69 FR 32456 Provisions of the
Machine Company. (Induction Furnace permit that relate
and Aluminum Sweat to pollutants other
Furnace). than PM10 are not
approved by EPA as
part of this SIP.
(26) Blackhawk Foundry and Permit No. 77-A-114- 8/19/02 6/10/04, 69 FR 32456 Provisions of the
Machine Company. S1 (Wheelabrator #1 permit that relate
& Grinding). to pollutants other
than PM10 are not
approved by EPA as
part of this SIP.
(27) Blackhawk Foundry and Permit No. 84-A-055- 8/19/02 6/10/04, 69 FR 32456 Provisions of the
Machine Company. S1 (Cupola ladle, permit that relate
Pour deck ladle, to pollutants other
Sand shakeout, than PM10 are not
Muller, Return sand approved by EPA as
#1, Sand cooler, part of this SIP.
Sand screen, and
Return sand #2).
(28) Blackhawk Foundry and Permit No. 72-A-060- 8/19/02 6/10/04, 69 FR 32457 Provisions of the
Machine Company. S5 (Cupola). permit that relate
to pollutants other
than PM10 are not
approved by EPA as
part of this SIP.
----------------------------------------------------------------------------------------------------------------


(e) The EPA approved nonregulatory provisions and quasi-regulatory measures.


EPA-Approved Iowa Nonregulatory Provisions
----------------------------------------------------------------------------------------------------------------
Applicable State
Name of nonregulatory SIP geographic or submittal EPA approval date Explanation
provision nonattainment area date
----------------------------------------------------------------------------------------------------------------
(1) Air Pollution Control Statewide........... 1/27/72 5/31/72, 37 FR 10842
Implementation Plan.
(2) Request for a Two Year Council Bluffs...... 1/27/72 5/31/72, 37 FR 10842 Correction notice
Extension to Meet the NAAQS. published 3/2/76.
(3) Revisions to Appendices D and Statewide........... 2/2/72 5/31/72, 37 FR 10842 Correction notice
G. published 3/2/76.
(4) Source Surveillance and Statewide........... 4/14/72 3/2/76, 41 FR 8960
Record Maintenance Statements.
(5) Statement Regarding Public Statewide........... 5/2/72 3/2/76, 41 FR 8960
Availability of Emissions Data.
(7) Letter Describing the Linn County, Polk 12/14/72 10/1/76, 41 FR 43407
Certificates of Acceptance for County.
Local, Air Pollution Control
Programs.
(8) High Air Pollution Episode Statewide........... 6/20/73 10/1/76, 41 FR 43407
Contingency Plan.
(9) Summary of Public Hearing on Statewide........... 9/3/75 10/1/76, 41 FR 43407
Revised Rules Which Were
Submitted on July 17, 1975.
(10) Air Quality Modeling to Statewide........... 3/4/77 6/1/77, 42 FR 27892
Support Sulfur Dioxide Emission
Standards.
(11) Nonattainment Plans......... Mason City, 6/22/79 3/6/80, 45 FR 14561
Davenport, Cedar
Rapids, Des Moines.
(12) Information on VOC Sources Linn County......... 10/8/79 3/6/80, 45 FR 14561
to Support the Nonattainment
Plan.
(13) Information and Commitments Linn County......... 11/16/79 3/6/80, 45 FR 14561
Pertaining to Legally
Enforceable RACT Rules to
Support the Nonattainment Plan.
(14) Lead Plan................... Statewide........... 8/19/80 3/20/81, 46 FR 17778
(15) Letter to Support the Lead Statewide........... 1/19/81 3/20/81, 46 FR 17778
Plan.
(16) Nonattainment Plans to Mason City, Cedar 4/18/80 4/17/81, 46 FR 22372
Attain Secondary Standards. Rapids, Des Moines,
Davenport, Keokuk,
Council Bluffs,
Fort Dodge, Sioux
City, Clinton,
Marshalltown,
Muscatine, Waterloo.
(17) Information to Support the Mason City, Cedar 9/16/80 4/17/81, 46 FR 22372
Particulate Matter Nonattainment Rapids, Des Moines,
Plan. Davenport, Keokuk,
Council Bluffs,
Fort Dodge, Sioux
City, Clinton,
Marshalltown,
Muscatine, Waterloo.
(18) Information to Support the Mason City, Cedar 11/17/80 4/17/81, 46 FR 22372
Particulate Matter Nonattainment Rapids, Des Moines,
Plan. Davenport, Keokuk,
Council Bluffs,
Fort Dodge, Sioux
City, Clinton,
Marshalltown,
Muscatine, Waterloo.
(19) Schedule for Studying Mason City, Cedar 6/26/81 3/5/82, 47 FR 9462
Nontraditional Sources of Rapids, Des Moines,
Particulate Matter and for Davenport, Keokuk,
Implementing the Results. Council Bluffs,
Fort Dodge, Sioux
City, Clinton,
Marshalltown,
Muscatine, Waterloo.
(20) Air Monitoring Strategy..... Statewide........... 7/15/81 4/12/82, 47 FR 15583
(21) Letter of Commitment to Statewide........... 5/14/85 9/12/85, 50 FR 37176
Revise Unapprovable Portions of
Chapter 22.
(22) Letter of Commitment to Statewide........... 4/22/86 7/11/86, 51 FR 25199
Submit Stack Height Regulations
and to Implement the EPA's
Regulations until the State's
Rules Are Approved.
(23) Letter of Commitment to Statewide........... 4/22/87 6/26/87, 52 FR 23981
Implement the Stack Height
Regulations in a Manner
Consistent with the EPA's Stack
Height Regulations with Respect
to NSR/PSD Regulations.
(24) PM10 SIP.................... Statewide........... 10/28/88 8/15/89, 54 FR 33536
(25) Letter Pertaining to NOX Statewide........... 11/8/90 2/13/91, 56 FR 5757
Rules and Analysis Which
Certifies the Material Was
Adopted by the State on October
17, 1990.
(26) SO2 Plan.................... Clinton............. 3/13/91 11/1/91, 56 FR 56158
(27) Letter Withdrawing Variance Polk County......... 10/23/91 11/29/91, 56 FR 60924 Correction notice
Provisions. published 1/26/93.
(28) Letter Concerning Open Statewide........... 10/3/91 1/22/92, 57 FR 2472
Burning Exemptions.
(29) Compliance Sampling Manual.. Statewide........... 1/5/93 5/12/93, 58 FR 27939
(30) Small Business Assistance Statewide........... 12/22/92 9/27/93, 58 FR 50266
Plan.
(31) Voluntary Operating Permit Statewide........... 12/8/94, 4/30/96, 61 FR 18958
Program. 2/16/96,
2/27/96
(32) SO2 Plan.................... Muscatine........... 6/19/96, 12/1/97, 62 FR 63454
5/21/97
(33) SO2 Maintenance Plan........ Muscatine........... 4/25/97 3/19/98, 63 FR 13343
(34) SO2 Control Plan............ Cedar Rapids........ 9/11/98 3/11/99, 64 FR 12090
(35) PM10 Control Plan........... Buffalo, Iowa....... 10/1/98 3/18/99, 64 FR 13346
----------------------------------------------------------------------------------------------------------------


[64 FR 7094, Feb. 12, 1999, as amended at 64 FR 12090, Mar. 11, 1999; 64 FR 13345, Mar. 18, 1999; 64 FR 17550, Apr. 12, 1999; 64 FR 68292, Dec. 7, 1999; 65 FR 9222, Feb. 24, 2000; 65 FR 32031, May 22, 2000; 67 FR 9593, Mar. 4, 2002; 67 FR 62891, Oct. 9, 2002; 67 FR 67565, Nov. 6, 2002; 68 FR 10971, Mar. 7, 2003; 68 FR 58022, Oct. 8, 2003; 68 FR 62501, Nov. 4, 2003; 69 FR 1538, Jan. 9, 2004; 69 FR 2967, Jan. 21, 2004; 69 FR 32456, June 10, 2004; 69 FR 56944, Sept. 23, 2004; 69 FR 63949, Nov. 3, 2004; 69 FR 65378, Nov. 12, 2004; 70 FR 16129, Mar. 30, 2005; 70 FR 22602, May 2, 2005; 70 FR 48077, Aug. 16, 2005; 70 FR 53941, Sept. 13, 2005]

§ 52.821 Classification of regions.
top
The Iowa plan was evaluated on the basis of the following classification:



----------------------------------------------------------------------------------------------------------------
Pollutant
----------------------------------------------------------
Air quality control region Photochemical
Particulate Sulfur Nitrogen Carbon oxidants
matter oxides dioxide monoxide (hydrocarbons)
----------------------------------------------------------------------------------------------------------------
Metropolitan Omaha-Council Bluffs Interstate......... I II III III III
Metropolitan Sioux Falls Interstate.................. II III III III III
Metropolitan Sioux City Interstate................... III III III III III
Metropolitan Dubuque Interstate...................... I III III III III
Metropolitan Quad Cities Interstate.................. I III III III III
Burlington-Keokuk Interstate......................... I I III III III
Northwest Iowa Intrastate............................ III III III III III
North Central Iowa Intrastate........................ IA III III III III
Northeast Iowa Intrastate............................ I III III III III
Southwest Iowa Intrastate............................ III III III III III
South Central Iowa Intrastate........................ I III III III I
Southeast Iowa Intrastate............................ III III III III III
----------------------------------------------------------------------------------------------------------------


[37 FR 10865, May 31, 1972, as amended at 39 FR 16346, May 8, 1974]

§ 52.822 Approval status.
top
(a) With the exceptions set forth in this subpart, the Administrator approves Iowa's plan for the attainment and maintenance of the national standards. Further, the Administrator finds the plan satisfies all requirements of Part D, Title I, of the Clean Air Act as amended in 1977, except as noted below.

[45 FR 14567, Mar. 6, 1980, as amended at 46 FR 47546, Sept. 29, 1981]

§ 52.823 PM10 State Implementation Plan Development in Group II Areas.
top
The Iowa Department of Natural Resources committed to comply with the PM10 regulations as set forth in 40 CFR part 51. In a letter to Morris Kay, EPA, dated October 28, 1988, Mr. Larry J. Wilson, Director, Iowa Department of Natural Resources, stated:


Three groups within the State of Iowa have been classified as Group II areas for fine particulate (PM–10) State Implementation Plan (SIP) development purposes. This includes portions of the cities of Des Moines, Mason City, and Cedar Rapids. The specific boundaries of these areas were identified in a letter of October 13, 1987, from Peter R. Hamlin to Carl Walter. The remainder of the State was classified as Group III.

In accordance with the SIP development procedures identified in the preamble of the PM–10 regulations for Implementing Revised Particulate Matter Standards, promulgated July 1, 1987, the State of Iowa commits to perform the following activities in these three Group II areas of the state:

(a) Gather ambient PM–10 data, to an extent consistent with minimum EPA requirements (note the network description contained in a letter of January 26, 1988, from Peter R. Hamlin to John Helvig).

(b) Analyze and verify the ambient PM–10 data and report exceedances of the 24-hour PM–10 National Ambient Air Quality Standards (NAAQS) to the Regional Office within 60 days of each exceedance.

(c) Immediately notify the Regional Office:

(1) Upon the availability of an appropriate number of verifiable 24-hour NAAQS exceedances to indicate a violation (see Section 2.0 of the PM–10 SIP development guideline) or

(2) when an annual arithmetic mean (AAM) above the annual PM–10 NAAQS becomes available.

(d) Within thirty (30) days of any notification of the Regional Office pursuant to (c) above (or upon collection of thirty-six (36) months of PM–10 ambient air quality data acceptable to EPA, whichever comes first) determine whether the measures in the existing SIP will assure timely attainment and maintenance of the primary PM–10 NAAQS and immediately notify the Regional Office of the results of this determination.

(e) Within six (6) months of any notification pursuant to (d) above, adopt and submit to EPA a PM–10 control strategy that assures attainment as expeditiously as practicable but not later than three (3) years from approval of the Committal SIP.

Because of the uncertainty about when the determination can be made pursuant to (d) above, it is difficult to determine if that control strategy could provide for the attainment of the PM–10 NAAQS within three years from the date EPA approves thisCommittal SIP. Therefore, I reserve the right to request a two-year extension of the attainment date as provided in Section 110(e) of the Clean Air Act, if and when the State of Iowa submits a SIP revision for any of these areas of the state.

The State of Iowa also commits to develop a PM–10 emission inventory for the areas submitted as part of any PM–10 SIP pursuant to items (c), (d), and (e) above. If the PM–10 NAAQS are not violated, the State of Iowa will proceed with this inventory for the three Group II areas in accordance with the following schedule:

October 1, 1988—Request special assistance funds from EPA to perform the inventory.

October 1, 1989—Initiate inventory.

August 1, 1990—Complete inventory.

October 31, 1990* —Submit inventory as part of a determination of adequacy that the current SIP will attain and maintain the PM–10 NAAQS.


*Presuming that sufficient ambient data acceptable to EPA are collected by July 31, 1990, and available by September 30, 1990.

[54 FR 33539, Aug. 15, 1989]

§ 52.824 Original identification of plan section.
top
(a) This section identifies the original “Air Implementation Plan for the State of Iowa” and all revisions submitted by Iowa that were Federally approved prior to July 1, 1998.

(b) The plan was officially submitted on January 27, 1972.

(c) The plan revisions listed below were submitted on the dates specified:

(1) Request for a two-year extension to meet the National Primary and Secondary Ambient Air Quality Standards for nitrogen dioxide in the Metropolitan Omaha-Council Bluffs Interstate Air Quality Control Region was submitted by the Governor on January 27, 1972. (Non-regulatory)

(2) Revisions of Appendices D and G of the plan were submitted on February 2, 1972, by the State Department of Health. (Non-regulatory)

(3) Source surveillance and record maintenance statements were submitted on April 14, 1972, by the State Department of Health. (Non-regulatory)

(4) Revised statement regarding public availability of emission data was submitted on May 2, 1972, by the State Department of Health. (Non-regulatory)

(5) State submitted Senate File 85 which created the Department of Environmental Quality and replaced the Iowa air pollution control statute which appeared as Chapter 136B of the Code of Iowa, on May 4, 1972. (Regulatory)

(6) A letter describing the issuance of a Certificate of Acceptance for the local air pollution control programs conducted by the Linn County Board of Health for the jurisdictions of the City of Cedar Rapids and Linn County, and the Des Moines-Polk County Health Department for the jurisdictions of the City of Des Moines and Polk County was submitted by the State Department of Health on December 14, 1972. (Non-regulatory)

(7) Compliance schedules were submitted by the State in February 1973. (Regulatory)

(8) Compliance schedules were submitted by the State in May 1973. (Regulatory)

(9) The State of Iowa High Air Pollution Episode Contingency Plan was submitted on June 20, 1973, by the Governor.

(10) The letter which requested the inclusion of the Linn County Health Department Rules and Regulations, the City of Cedar Rapids Air Pollution Control Ordinance, the Polk County Rules and Regulations—Air Pollution Control, and the City of Des Moines Air Pollution Control Regulations in the State of Iowa implementation plan was submitted by the State Department of Environmental Quality on June 25, 1974. (No approval action was taken on the request because it did not meet the procedural requirements specified in 40 CFR part 51.)

(11) Revisions of Rules 2.1, 3.1, 3.4, 4.1, 4.3(3) and 4.3(4) of the Iowa Rules and Regulations Relating to Air Pollution Control were submitted on April 24, 1974 (by the Governor's office). (No approval or disapproval action was taken on amended Subrule 4.3(3)a., which restricts emissions of sulfur oxides from fuel-burning sources.) (Regulatory)

(12) Compliance schedules were submitted by the State in May 1974.

(13) Compliance schedules were submitted by the State in May 1974.

(14) Compliance schedules were submitted by the State in July 1974.

(15) Compliance schedules were submitted by the State in August 1974.

(16) A letter from the Director of the Department of Environmental Quality, dated August 29, 1974, which requested that no further action be taken on Subrule 4.3(3) a. as submitted on April 24, 1974. (Regulatory)

(17) Compliance schedules were submitted by the State in September 1974.

(18) Compliance schedules were submitted by the State in November 1974.

(19) Compliance schedules were submitted by the State in February 1975.

(20) Compliance schedules were submitted by the State in April 1975.

(21) Compliance schedules were submitted by the State in June 1975.

(22) Revisions of Rules 1.2, 2.1, 3.1, 3.4, 4.1, 4.2, 4.3, 5.1, 7.1, 8.3 and 8.4 of the Iowa Rules and Regulations Relating to Air Pollution Control were submitted on July 17, 1975, by the Governor's office. (Regulatory) (No approval or disapproval action was taken on Subrules 4.3(2)c. or 4.3(3)b.)

(23) Summary of the public hearing which was held on the revised rules which were submitted on July 17, 1975, by the Governor's office was submitted by the Iowa Department of Environmental Quality on September 3, 1975. (non-regulatory)

(24) Letter which withdrew amended Subrule 4.3(2)c. from the proposed Iowa plan revision submitted on July 17, 1975, was submitted by the Governor's office on January 20, 1976.

(25) Revisions to Rules 1.2, 2.1, 3.1, 3.2, 4.1, 4.3, 4.4, and new Chapters 14 and 52 of the Iowa Administrative Code Relating to Air Pollution Control were submitted June 9, 1976, by the Department of Environmental Quality (Subrules 4.3(3)a(1) and 4. 3(3)a(5) were disapproved).

(26) Additional air quality modeling to support the sulfur dioxide emission standards of Subrules 4.3(3)a(1) and 4.3(3)a(2) was submitted March 4, 1977, by the Department of Environmental Quality (Non-regulatory).

(26a) Revisions of Rules 1.2, 4.3(2)b, 4.4(6), 4.4(12) and of Chapter 7 of the Iowa Administrative Code relating to Air Pollution Control were submitted June 20, 1977, by the Department of Environmental Quality.

(27) Nonattainment plan provisions as required by the Clean Air Act Amendments of 1977 were submitted on June 22, 1979, by the Department of Environmental Quality. The submission included amended rule 4.3(2) relating to fugitive dust and new rule 4.5 relating to offsets for particulate matter. The revisions included attainment plans for particulate in Mason City and Davenport, particulate and ozone in Cedar Rapids and particulate and carbon monoxide in Des Moines. The submission was disapproved in part for failure to meet the requirements of Section 173 and was conditionally approved with respect to several requirements.

(28) On October 8, 1979, the Iowa Department of Environmental Quality submitted additional information to support the June 22, 1979, submission.

(29) On November 16, 1979, the Iowa Air Quality Commission submitted additional information and commitments to allow approval or conditional approval of portions of the June 22, 1979, submission.

(30) Nonattainment plan provisions as required by the Clean Air Act Amendments of 1977 were submitted on April 18, 1980, by the Department of Environmental Quality. The submission included amended rule 4.3(2) relating to fugitive dust and amended rule 3.5 relating to particulate matter offsets. The revisions included plans to attain the secondary particulate standards for all areas designated nonattainment as of March 6, 1980. The submission was conditionally approved with respect to several requirements.

(31) The State of Iowa Lead State Implementation Plan was submitted on August 19, 1980 by the Director of the Department of Environmental Quality.

(32) Additional information to support the April 18, 1980 submission was submitted on September 16, 1980, by the Department of Environmental Quality.

(33) Additional information to support the April 18, 1980 submission was submitted on November 17, 1980, by the Department of Environmental Quality.

(34) A revised Chapter 5, dealing with excess emissions and malfunctions was submitted on December 23, 1980, by the Department of Environmental Quality.

(35) [Reserved]

(36) A letter was submitted dated January 19, 1981 by the Director of the Department of Environmental Quality which provided additional information concerning the Iowa Lead State Implementation Plan.

(37) A variance from 400—4.2(1) of the Iowa Administrative Code for the Iowa Army Ammunition Plant at Middletown, Iowa, was submitted on October 19, 1979 by the Executive Director.

(38) Revisions to Subrule 400—4.3(2)“c” relating to fugitive emissions control and a document describing how this subrule is to be enforced were submitted on June 1, 1981, by the Department of Environmental Quality.

(39) A schedule for studying nontraditional sources of particulate matter and for implementing the results of the studies in the form of control strategies was submitted on June 26, 1981 by the Department of Environmental Quality. (Non-Regulatory).

(40) Revisions to Subrule 400—4.3(2)“b” relating to particulate emissions from fuel burning sources were submitted on July 31, 1981, by the Department of Environmental Quality.

(41) The Iowa Ambient Air Monitoring Strategy was submitted July 15, 1981, by the Department of Environmental Quality (non-regulatory).

(42) A conditional permit containing an alternative emission reduction program for the Progressive Foundry, Inc., of Perry, Iowa, under 400–3.7 and 400–4.6 of the Iowa Administrative Code; and an administrative order setting forth a compliance schedule, were submitted on December 18, 1981, by the Executive Director. The conditional permit specifies particulate emissions not to exceed 16.3 pounds per hour from the gray iron cupola with a process weight rate not to exceed 8534 pounds per hour and specifies the casting shakeout exhaust system shall not exceed 0.05 grains per standard cubic foot nor 12.8 pounds per hour of particulate matter. The compliance schedule specifies a final compliance date of September 1, 1983.

(43) On July 1, 1983, the State's air pollution control regulations were recodified at Department 900, Title II, Chapters 20 through 29.

(44) Revised Chapter 22 regulations, dealing with new source review in nonattainment areas, were submitted on July 18, 1984, by the Iowa Department of Water, Air and Waste Management. Subrules 22.5(4) g, i, and j remain unapproved. EPA will temporarily defer action on these subrules pending a May 14, 1985, commitment from the State to submit appropriate revisions.

(i) Incorporation by reference. Revised Chapter 22 regulations, dealing with new source review in nonattainment areas, adopted by the State on July 17, 1984.

(ii) Additional material.May 14, 1985, letter of commitment from the State to revise unapprovable portions of their Chapter 22 air pollution regulations.

(45) Revised Chapter 22 subrules 22.5(2) a and b; and revised subrules 22.5(4) g, i, and j, all relating to new source review in nonattainment areas, were submitted on December 31, 1985, by the Iowa Department of Water, Air and Waste Management.

(a) Incorporation by reference.

(i) Revised Chapter 22 subrules 22.5(2) a and b; and subrules 22.5(4) g, i, and j, adopted by the State on December 17, 1985.

(ii) April 22, 1986, letter of commitment from the Iowa Department of Water, Air and Waste Management to submit stack height regulations by May 30, 1986, and to implement EPA's stack height requirements until such time that the regulations are fully approved.

(46) Revised Chapter 22 regulations pertaining to new source review in attainment and unclassified areas of the state (PSD) were submitted on March 9, 1987, by the Iowa Department of Natural Resources.

(i) Incorporation by reference. (A) Iowa Administrative Bulletin (ARC 7446), amendments to Chapter 22, “Controlling Pollution,” adopted by the Iowa Environmental Protection Commission on February 17, 1987.

(B) Letter from Iowa dated April 22, 1987, committing to implementation of its stack height regulations in a manner consistent with EPA's stack height regulations with respect to new source review/PSD regulations.

(47) Revised Chapters 22 and 23 regulations pertaining to stack height credits for modeling purposes were submitted on May 20, 1986, by the Iowa Department of Natural Resources. Revised definition of “emission limitation” and “emission standard” at Iowa regulation 567.20.2(455B), Definitions.

(i) Incorporation by reference. (A) Iowa Administrative Bulletin (ARC 6566), amendments to Chapter 22, “Controlling Pollution” and Chapter 23, “Emission Standards for Contaminants” adopted by the Iowa Environmental Protection Commission on April 22, 1986, effective June 25, 1986.

(B) Iowa Administrative Bulletin (ARC 8023) amendment to 567–20.2(455B). Effective September 22, 1987.

(48) Revised Chapter 22, subrule 22.1(2)“d” exemptions from permit requirements were submitted on September 13, 1988, by the Iowa Department of Natural Resources. The revision clarifies permit exemptions for certain grain roasting equipment.

(i) Incorporation by reference. (A) Amendment to Chapter 22, “Controlling Pollution,” Iowa Administrative Code, subrule 22.1(2)“d”, effective September 14, 1988.

(49) Revised Polk County, Iowa, Board of Health Rules and Regulations, Chapter V, Air Pollution, submitted by the Iowa Department of Natural Resources on February 3, 1988. EPA approves these regulations with the provision that any operating permit which changes any requirement of the Iowa SIP, including requirements in any construction permit, must be submitted to EPA, and approved, as a SIP revision. In the absence of such approval, the enforceable requirements shall be those in the Iowa SIP.

(i) Incorporation by reference. (A) Ordinance No. 28, Amendment to Polk County Board of Health Rules and Regulations chapter V, Air Pollution, Article I, 5–1 and 5–2 (except for variance); Article II, 5–3; and Article X, 5–28 through 5.50–1 (except for 5–49 and 5–50), effective October 8, 1987. (continued)