PCN 09M4, Watertown, SD: NPDES SDR10P5RT discharge permit, effluent exceedances, inspections, penalties

PCN 09M4, Watertown, South Dakota: General permit coverage SDR10P5RT, held by SD Department of Transportation; Construction stormwater; Effective; issued November 11, 2025, term to October 31, 2028, by SDDANR.

South Dakota holds 1,358 Construction stormwater coverages of this permit type in EPA’s file; 1,000 were issued before SDR10P5RT. SD Department of Transportation holds 182 permits in South Dakota.

Other permits held by SD Department of Transportation

• NH-PS 0012(187)106, CORSON, PCN 04FL, Mcintosh: NDR10I030, issued 2021-11-22
• PCN 05TY - EPA, Mclaughlin: NDR10I05U, issued 2025-01-03
• P 1806(12)149, PCN 038Z, STANLEY COUNTY, Ft. Pierre: SDR10I01F, issued 2020-08-24
• ER 6385(07), MELLETTE COUNTY, PCN 07N2, White River: SDR10I01R, issued 2021-08-12
• P 1806(15)176, STANLEY COUNTY, PCN 045K, Ft. Pierre: SDR10I01S, issued 2021-09-27
• NH 0018(203)333, CHARLES MIX, PCN 04V9, Pickstown: SDR10I01T, issued 2021-11-12
• NH 0212(182)187; DEWEY & POTTER, PCN 05EN, La Plant: SDR10I01V, issued 2021-11-29
• PCN 05HV - EPA, Kadoka: SDR10I03F, issued 2024-10-15
• PCN 04FC - EPA, Pine Ridge: SDR10I03N, issued 2025-01-03
• PCN 06CM - EPA, Eagle Butte: SDR10I03P, issued 2025-02-13

Coverages issued nearest SDR10P5RT

• 2025-10-24: FLANDREAU SANTEE SIOUX WELLNESS CENTER, Flandreau: SDR10I04A, held by Hausmann Construction, Inc. and Clark Drew Construction, Inc. in a joint venture
• 2025-10-24: TRIBAL SERVICES CENTER, Flandreau: SDR10I04B, held by Hausmann Construction & Clark Drew Construction - A Joint Venture
• 2025-10-31: MARION INDUSTRIAL SUBSTATION GRADING, Marion: SDR10P5OY, held by East River Electric Power Cooperative, Inc.
• 2025-10-31: LAKE ANDES NATIONAL WILDLIFE REFUGE COMPLEX, Lake Andes: SDR10P5PK, held by US Fish & Wildlife
• 2025-10-31: LONE TREE ADDITION, Harrisburg: SDR10P5PY, held by Black Dog, LLC
• 2025-11-12: COLORADO BLVD SEWER UPSIZE PHASE 3, Spearfish: SDR10P5JZ, held by Woelber Excavating
• 2025-11-12: COLORADO BLVD SEWER UPSIZE PHASE 2, Spearfish: SDR10P5K0, held by Woelber Excavating
• 2025-11-13: STANDING ROCK CORSON COUNTY BURIED CABLE INSTALLATION, Mcintosh: NDR10I06E, held by Standing Rock Telecom, Inc.
• 2025-11-19: CORTRUST BANK SITE IMPROVEMENTS, Sioux Falls: SDR10P5OB, held by Cortrust Bank
• 2025-11-25: CLEAR LAKE MAIN LIFT STATION & FORCEMAIN, Clear Lake: SDR10P5RG, held by City of Clear Lake

PCN 09M4 among its neighbors

15 discharge permits are in the Willow Creek-Big Sioux River subwatershed (HUC 101702010903); SDR10P5RT is one.

Other permits in the Willow Creek-Big Sioux River subwatershed (HUC 101702010903)

• CALVIN INDUSTRIAL PARK SECOND ADDITION - PHASE 1, Watertown: SDR10P57S, minor, term to 2028-10-31
• CROCKERS COLLISION CENTER, Watertown: SDR10K525, minor, term to 2023-03-31
• DIESEL ADDITION & REMODEL, Watertown: SDR10K653, minor, term to 2023-03-31
• GLACIAL LAKES ENERGY LLC, Watertown: SD0027863, minor, term to 2012-06-30
• HARMONY HILL 3RD ADDITION, Watertown: SDR10K739, minor, term to 2023-03-31
• HIGH SCHOOL TRACK & FIELD IMPROVEMENTS, Watertown: SDR10K783, minor, term to 2023-03-31
• VALLEY VIEW 3RD ADDITION, Watertown: SDR10K620, minor, term to 2023-03-31
• VALLEY VIEW SECOND ADDITION, Watertown: SDR10K040, minor, term to 2023-03-31
• WASTEWATER TREATMENT FACILITY IMPROVEMENTS, Watertown: SDR10P5AK, minor, term to 2028-10-31
• WATERTOWN MUNICIPAL UTILITIES CAST IRON REPLACEMENT PROJECT, Watertown: SDR10P5OQ, minor, term to 2028-10-31