The following table contains electronic copies of air permits issued by the department since Jan. 1, 1997. The list includes construction permits, also called new source review permits, and operating permits. The list also includes permit-by-rule permits. The department will add air permits issued before Jan. 1, 1997, to the table below as time and staffing allow. A list of pending air permits and air permits issued before 1997 are available in the separate search systems listed below. If you cannot find the information you are looking for, please submit an Open Records/ Sunshine Law Request.

To sort the table below by field, click on the Facility, Site ID, Permit Type, Permit Number or Date Issued column headings in the table. You can also enter criteria in the search boxes to search for a specific air permit.

*This is an "and" type search. All search criteria you enter must be met for the permit to appear in the results. If the permit you are searching for is not listed in the results, try again using less criteria.

Facility Site ID Sort descending City, County Permit Type Permit Number Date issued
Union Electric-Sioux Plant-West Alton, OP2001-012 183-0001 West Alton,
St. Charles
Operating Permit: Part 70 OP2001-012
AmerenUE-Sioux-West Alton, 012001-024 183-0001 West Alton,
St. Charles
Construction Permit: De Minimis 012001-024
Ameren Missouri-Sioux, 062011-003 183-0001 West Alton,
St. Charles
Construction Permit: Temporary 062011-003
Ameren Missouri-Sioux Energy Center, 052013-014 183-0001 West Alton,
Jefferson
Construction Permit: Temporary 052013-014
Ameren Missouri-Sioux, 092016-018 183-0001 West Alton,
Jefferson
Construction Permit: Prevention of Significant Deterioration 092016-018
Ameren Missouri-Sioux, 102018-001 183-0001 West Alton,
Jefferson
Construction Permit: De Minimis 102018-001
Ameren Missouri-Sioux, OP2018-113 183-0001 West Alton,
Jefferson
Operating Permit: Part 70 OP2018-113
Ameren Missouri-Sioux, 012017-005 183-0001 West Alton,
St. Charles
Construction Permit: Temporary 012017-005
Ameren Missouri-Sioux, OP2011-001C 183-0001 West Alton,
Jefferson
Operating Permit: Part 70 OP2011-001C
AmerenUE-Sioux Plant-West Alton, 032004-021 183-0001 West Alton,
St. Charles
Construction Permit: De Minimis 032004-021
Ameren UE-Sioux Energy Center, 1198-011 183-0001 West Alton,
St. Charles
Construction Permit: De Minimis 1198-011
AmerenUE-Sioux Plant-West Alton, 032004-021A 183-0001 West Alton,
St. Charles
Construction Permit: De Minimis 032004-021A
Union Electric Co, Sioux Plant, OP2011-001A 183-0001 West Alton,
St. Charles
Operating Permit: Part 70 OP2011-001A
Fred Weber-O'Fallon Asphalt, OP2011~010 183-0004 St. Charles,
St. Charles
Operating Permit: Intermediate OP2011~010
Fred Weber - O'Fallon Asphalt, OP2018-105 183-0004 O'Fallon,
St. Charles
Operating Permit: Intermediate OP2018-105
Fred Weber Inc.-O'Fallon Asphalt, 012000-006 183-0004 O'Fallon,
St. Charles
Construction Permit: De Minimis 012000-006
Fred Weber Inc. - O'Fallon Asphalt Plant, 062020-005 183-0004 O'Fallon,
St. Charles
Construction Permit: De Minimis 062020-005
Fred Weber-O'Fallon Asphalt, 062020-005A 183-0004 O'Fallon,
St. Charles
Construction Permit: De Minimis 062020-005A
Fred Weber Inc. - O'Fallon Asphalt Plant, OP2011-010 183-0004 O'Fallon,
St. Charles
Operating Permit: Intermediate OP2011-010
Fred Weber-O'Fallon Stone, 0697-021 183-0007 O'Fallon,
St. Charles
Construction Permit: Minor 0697-021
Fred Weber-O'Fallon, 052009-020 183-0007 O'Fallon,
St. Charles
Construction Permit: De Minimis 052009-020
Lafarge North America-St. Charles, 062004-008 183-0008 St. Charles,
St. Charles
Construction Permit: Minor 062004-008
Lafarge North America-St. Charles, 062004-008A 183-0008 St. Charles,
St. Charles
Construction Permit: Minor 062004-008A
Lafarge Construction - St. Charles, 1298-013 183-0008 St. Charles,
St. Charles
Construction Permit: De Minimis 1298-013
Lafarge North America - St. Charles, 052003-007 183-0008 St. Charles,
St. Charles
Construction Permit: Minor 052003-007
Lafarge North America - St. Charles, 052003-007A 183-0008 St. Charles,
St. Charles
Construction Permit: Minor 052003-007A
Lafarge-St. Charles, 082005-020 183-0008 St. Charles,
St. Charles
Construction Permit: Minor 082005-020
Lafarge-St. Charles, 082005-020A 183-0008 St. Charles,
St. Charles
Construction Permit: Minor 082005-020A
Fred Weber-New Melle, 092005-005 183-0009 New Melle,
St. Charles
Construction Permit: Minor 092005-005
Fred Weber-New Melle, 092005-005A 183-0009 New Melle,
St. Charles
Construction Permit: Minor 092005-005A
Fred Weber-New Melle, 0897-007 183-0009 New Melle,
St. Charles
Construction Permit: De Minimis 0897-007
Fred Weber-New Melle, 0398-001 183-0009 New Melle,
St. Charles
Construction Permit: Minor 0398-001
Boeing-St. Charles County, OP2010-121 183-0010 St. Louis,
St. Charles
Operating Permit: Part 70 OP2010-121
Boeing-St. Charles County, OP2020-013 183-0010 St. Charles,
St. Charles
Operating Permit: Part 70 OP2020-013
Boeing-St. Charles County, 092019-012 183-0010 St. Charles,
St. Charles
Construction Permit: De Minimis 092019-012
Boeing-St. Charles County, 2023-06-036 183-0010 St. Charles,
St. Charles
No Permit Required 2023-06-036
Boeing-McDonnell Douglas-St. Charles, 0997-007 183-0010 St. Charles,
St. Charles
Construction Permit: De Minimis 0997-007
Boeing-McDonnell Douglas-St. Charles, OP1999-052 183-0010 St. Charles,
St. Charles
Operating Permit: Part 70 OP1999-052
Boeing-McDonnell Douglas-St. Charles, OP1999-052A 183-0010 St. Charles,
St. Charles
Operating Permit: Part 70 OP1999-052A
Lafarge Construction-Defiance, 0199-024 183-0015 Defiance,
St. Charles
Construction Permit: Minor 0199-024