EPA · discharge permits by what is permitted
Small municipal storm sewer systems
- 1,334Current permits
- 28States
By state
- Texas199
- Washington154
- Colorado130
- Georgia109
- Virginia99
- Missouri97
- South Carolina70
- Alabama57
- North Carolina53
- Florida50
- Kentucky43
- Rhode Island41
- Hawaii30
- Oregon23
- Montana17
- New York17
- Idaho16
- Oklahoma10
- Maine8
- Arkansas7
- Kansas7
- New Mexico7
- Alaska5
- Illinois5
- Tennessee5
- California4
- Wisconsin4
- Connecticut3
Other kinds of permit
- Biosolids 5,262
- Concentrated animal feeding operations 2,738
- Combined sewer overflows 241
- Publicly owned treatment works 14,960
- Industrial pretreatment 202
- Construction stormwater 195,757
- Industrial stormwater 43,383
- Large municipal storm sewer systems 430
Permits
| Permit holder | NPDES ID | City | State | Program | Discharger | Receiving water |
|---|---|---|---|---|---|---|
| 521 DRAINAGE AUTHORITY MS4 | COR090100 | GRAND JUNCTION | CO | Small municipal storm sewer systems | Minor | Colorado River |
| ABERDEEN CITY | WAR045026 | ABERDEEN | WA | Small municipal storm sewer systems | Minor | Fry Creek-Frontal Grays Harbor |
| ABINGDON TOWN MS4 | VAR040137 | WASHINGTON COUNTY | VA | Small municipal storm sewer systems | Minor | Spoon Gap Creek-Wolf Creek |
| ACADEMY SCHOOL DIST 20 MS4 | COR070062 | EL PASO COUNTY | CO | Small municipal storm sewer systems | Minor | Pine Creek to Monument Creek |
| ADA COUNTY HIGHWAY DISTRICT MS4 | IDS028185 | BOISE | ID | Small municipal storm sewer systems | Minor | BOISE RIVER |
| ADAMS 12 FIVE STAR SCHOOLS MS4 | COR070026 | BROOMFIELD | CO | Small municipal storm sewer systems | Minor | Signal Ditch |
| ADAMS ARAPAHOE COUNTY DIST 28J MS4 | COR070059 | ARAPAHOE COUNTY | CO | Small municipal storm sewer systems | Minor | East Branch Highline Canal |
| ADAMS COUNTY PUBLIC WORKS MS4 | COR090041 | WESTMINSTER | CO | Small municipal storm sewer systems | Minor | Unnamed Tributary to Big Dry Creek |
| ADAMS COUNTY SCHOOL DIST 14 MS4 | COR070043 | COMMERCE CITY | CO | Small municipal storm sewer systems | Minor | Sand Creek to South Platte River |
| AIKEN COUNTY MS4 | SCR030302 | AIKEN | SC | Small municipal storm sewer systems | Minor | Upper Horse Creek-Savannah River |
| ALABAMA A&M UNIVERSITY MS4 PH II | ALR040061 | NORMAL | AL | Small municipal storm sewer systems | Minor | Upper Huntsville Spring Branch |
| ALABAMA STATE UNIVERSITY MS4 PH II | ALR040065 | MONTGOMERY | AL | Small municipal storm sewer systems | Minor | Caney Branch |
| ALBEMARLE COUNTY MS4 | VAR040074 | CHARLOTTESVILLE CITY | VA | Small municipal storm sewer systems | Minor | Meadow Creek-Rivanna River |
| ALEXANDRIA CITY - MS4 | VAR040057 | ALEXANDRIA CITY | VA | Small municipal storm sewer systems | Minor | Fourmile Run-Potomac River |
| ALGONA CITY OF | WAR045500 | ALGONA | WA | Small municipal storm sewer systems | Minor | White River |
| ALSIP, VILLAGE OF | ILR400279 | ALSIP | IL | Small municipal storm sewer systems | Minor | CALUMET SAG CHANNEL |
| ANACORTES CITY OF | WAR045549 | ANACORTES | WA | Small municipal storm sewer systems | Minor | |
| ANDERSON COUNTY MS4 | SCR030702 | ANDERSON | SC | Small municipal storm sewer systems | Minor | Upper Big Generostee Creek |
| ANGELO STATE UNIVERSITY MS4 | TXR040546 | SAN ANGELO | TX | Small municipal storm sewer systems | Minor | CONCHO RIVER |
| ANGLETON DRAINAGE DISTRICT MS4 | TXR040137 | ANGLETON | TX | Small municipal storm sewer systems | Minor | OYSTER CREEK ABOVE TIDAL |
| APEX TOWN - SMALL MS4 | NCS000446 | APEX | NC | Small municipal storm sewer systems | Minor | Beaver Creek |
| ARAPAHOE COMMUNITY COLLEGE MS4 | COR070048 | LITTLETON | CO | Small municipal storm sewer systems | Minor | South Platte River |
| ARAPAHOE COUNTY MS4 | COR080010 | ARAPAHOE COUNTY | CO | Small municipal storm sewer systems | Minor | South Platte River to South Platte River |
| ARDSLEY SCHOOL DIST MS4 STORM SEWERS | NYR20A262 | ARDSLEY | NY | Small municipal storm sewer systems | Minor | Upper Bronx River |
| ARLINGTON CITY | WAR045501 | ARLINGTON | WA | Small municipal storm sewer systems | Minor | Armstrong Creek-Stillaguamish River |
| ARLINGTON COUNTY PUBLIC SCHOOLS MS4 | VAR040127 | ARLINGTON COUNTY | VA | Small municipal storm sewer systems | Minor | Pimmit Run-Potomac River |
| ARLINGTON NATIONAL CEMETERY MS4 | VAR040139 | ARLINGTON COUNTY | VA | Small municipal storm sewer systems | Minor | Pimmit Run-Potomac River |
| ARNOLD PHASE II MS4 | MOR04C072 | ARNOLD | MO | Small municipal storm sewer systems | Minor | Black Creek |
| ARVADA MS4 | COR090013 | JEFFERSON COUNTY | CO | Small municipal storm sewer systems | Minor | Ralston Creek to Clear Creek |
| ASHLAND MUNICIPAL STORMWATER, MS4 | ORS113604 | JACKSON | OR | Small municipal storm sewer systems | Minor | Hamilton Creek-Bear Creek |
| ASHLAND TOWN MS4 | VAR040011 | HANOVER COUNTY | VA | Small municipal storm sewer systems | Minor | Mechumps Creek-Pamunkey River |
| ASHLAND, CITY OF | KYG200002 | ASHLAND | KY | Small municipal storm sewer systems | Minor | VARIOUS |
| ASOTIN CITY | WAR046500 | ASOTIN | WA | Small municipal storm sewer systems | Minor | Asotin Dam-Snake River |
| ASOTIN COUNTY | WAR046501 | ASOTIN | WA | Small municipal storm sewer systems | Minor | Asotin Creek |
| ATHENS-CLARKE COUNTY MS4 | GAG610003 | ATHENS | GA | Small municipal storm sewer systems | Minor | Trail Creek-North Oconee River |
| AUBURN CITY | WAR045502 | AUBURN | WA | Small municipal storm sewer systems | Minor | Mill Creek-Green River |
| AUBURN UNIVERSITY AT MONTGOMERY MS4 PH II | ALR040062 | MONTGOMERY | AL | Small municipal storm sewer systems | Minor | Harwell Mill Creek |
| AUBURN UNIVERSITY MS4 PH II | ALR040030 | AUBURN UNIV | AL | Small municipal storm sewer systems | Minor | Upper Chewacla Creek |
| AUGUSTA COUNTY MS4 | VAR040131 | AUGUSTA COUNTY | VA | Small municipal storm sewer systems | Minor | Falling Spring Run-Middle River |
| AURARIA HIGHER EDUCATION CENTER MS4 | COR070080 | DENVER | CO | Small municipal storm sewer systems | Minor | Cherry Creek to South Platte River |