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  2. Air Quality Implementation Plans

EPA Approved Minnesota Source-Specific Requirements

Name of source Permit No. State effective date EPA approval date Comments
Aggregate Industries Aggregate Industries (pdf) (181.55 KB) 12300007-002 04/03/09 3/11/2010, 75 FR 11461 Only conditions cited as “Title I condition: SIP for PM10 NAAQS.”
BAE Technology Center BAE Technology Center (pdf) (149.44 KB) 00300245-003 1/20/2016 6/9/2016, 81 FR 37164 Only conditions cited as “[Title I Condition: 40 CFR 50.4 (SO2 SIP), Title I Condition: 40 CFR 51, Title I Condition: 40 CFR pt. 52, subp. Y]”.
Bulk Silos Bulk Silos (pdf) (600.75 KB) 12300391–102 6/3/2021 4/7/2022, 87 FR 20329 Only conditions cited as "Title I Condition: 40 CFR 50.6 (PM10 SIP)."
Commercial Asphalt CO, Plant 905 Bulk Silos (pdf) (600.75 KB) 12300347-002 9/10/1999 7/12/2000, 65 FR 42861 Title I conditions only.
Continental Nitrogen (pdf) (468.85 KB)   7/28/1992 9/9/1994, 59 FR 46553 Findings and Order.
Continental Nitrogen Continental Nitrogen Amendment One (pdf) (49.79 KB)   2/25/1994 9/9/1994, 59 FR 46553 Amendment One to Findings and Order.
Federal Cartridge Company Federal Cartridge Company (pdf) (237.9 KB) 00300156-003 12/28/2007 4/24/2009, 74 FR 18634 Only conditions cited as “Title I condition: SIP for SO2 NAAQS.”
Flint Hill Resources Pine Bend, LLC Flint Hills Resources Pine Bend, LLC (pdf) (1.52 MB) 03700011-102 10/5/2018 8/19/2019, 84 FR 42825 Only conditions cited as “Title I Condition: 40 CFR Section 50.4 (SO2 SIP); Title I Condition: 40 CFR 51; Title I Condition: 40 CFR pt. 52, subp. Y”.
GAF Building Materials GAF Building Materials (pdf) (624.54 KB)   5/27/1992 4/14/1994, 59 FR 17703 Findings and Order.
GAF Building Materials GAF Building Materials Amendment Two (pdf) (119.78 KB)   9/18/1997 2/8/1999, 64 FR 5936 Amendment Two to Findings and Order.
Gerdau Ameristeel US, Inc Gerdau Ameristeel US, Inc (pdf) (263.57 KB) 12300055-004 9/10/2008 5/20/2009, 74 FR 23632 Only conditions cited as “Title I condition: SIP for PM10 NAAQS.”
Gopher Resource, LLC Gopher Resource, LLC (pdf) (246.33 KB) 03700016-003 6/29/2010 1/13/2011, 76 FR 2263 Only conditions cited as “Title I condition: SIP for Lead NAAQS.”
Great Lakes Coal & Dock Co. Great Lakes Coal & Dock Co. (pdf) (1014.97 KB)   8/25/1992 2/15/1994, 59 FR 7218 Amended Findings and Order.
Great Lakes Coal & Dock Co. Great Lakes Coal & Dock Co. Amendment One (pdf) (74.55 KB)   12/21/1994 6/13/1995, 60 FR 31088 Amendment One to Amended Findings and Order.
Harvest States Cooperatives Harvest States Cooperatives (pdf) (985.82 KB)   1/26/1993 2/15/1994, 59 FR 7218 Findings and Order.
Harvest States Cooperatives Harvest States Cooperatives Amendment One (pdf) (72.01 KB)   12/21/1994 6/13/1995, 60 FR 31088 Amendment One to Findings and Order.
Hoffman Enclosures Hoffman Enclosures (pdf) (219.1 KB) 00300155-001 1/31/2008 4/24/2009, 74 FR 18634 Only conditions cited as “Title I condition: SIP for SO2 NAAQS.”
Lafarge Corp., Red Rock Terminal Lafarge Corp., Red Rock Terminal (pdf) (373.49 KB) 12300353-002 5/7/2002 8/19/2004, 68 FR 51371 Title I conditions only.
Metropolitan Council Environmental Services Metropolitan Wastewater Treatment Plant MCES Metropolitan Wastewater Treatment Plant (pdf) (176.01 KB) 12300053-006 2/25/2010 12/16/2010, 75 FR 78602 Only conditions cited as “Title I condition: SIP for PM10 NAAQS.”
Minneapolis Energy Center Inc Minneapolis Energy Center Inc (pdf) (1.77 MB)   5/27/1992 4/14/1994, 59 FR 17706 Findings and Order for Main Plant, Baker Boiler Plant, and the Soo Line Boiler Plant.
Minneapolis Energy Center Inc   12/21/1994 6/13/1995, 60 FR 31088 Amendment One to Third Amended Findings and Order.
Minneapolis Energy Center Inc   9/23/1997 2/8/1999, 64 FR 5936 Amendment Two to Third Amended Findings and Order.
Northern States Power Co., Riverside Plant NSP, Riverside Plant (pdf) (280.11 KB) 05300015-001 5/11/1999 2/26/2002, 67 FR 8727 Title I conditions only.
Rochester Public Utilities, Silver Lake Plant RPU, Silver Lake Plant (pdf) (459.41 KB) 10900011-005 11/25/2015 3/10/2017, 82 FR 13230 Only conditions cited as “Title I Condition: 40 CFR Section 50.4 , SO2 SIP; Title I Condition: 40 CFR pt. 52, subp. Y” and “Title I Condition: 40 CFR Section 50.6, PM10 SIP; Title I Condition: 40 CFR pt. 52, subp. Y”.
Saint Paul Park Refining Co., LLC Saint Paul Park Refining Co., LLC (pdf) (2.88 MB) 16300003-021 11/25/2015 4/7/2017, 82 FR 16923 Only conditions cited as “Title I Condition: 40 CFR 50.4 (SO2 SIP), Title I Condition: 40 CFR pt. 52, subp. Y”
St. Paul Terminals St. Paul Terminals (pdf) (300.77 KB)   2/2/1996 7/22/1997, 62 FR 39120 Findings and Order.
Xcel Energy-Inver Hills Generating Plant Xcel Energy-Inver Hills Generating Plant (pdf) (1.28 MB) 03700015-004 7/16/2014 1/28/2016, 81 FR 4886 Only conditions cited as “Title I condition: SIP for SO2 NAAQS.”
Xcel Energy - Northern States Power Company, Sherburne County Generating Station Xcel Energy - NSP, Sherco (pdf) (181.42 KB) Administrative Order 5/2/2012 6/12/2012, 77 FR 34801 See Final Rule for details.

Air Quality Implementation Plans

  • About Air Quality Implementation Plans
  • Approved Air Quality Implementation Plans
  • Develop an Air Quality SIP
  • Find a Regional Contact for Air Quality SIPs/FIPS/TIPs
  • Tools for SIP Status
Contact Us about Air Quality Implementation Plans
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on February 6, 2025
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