Clean Water Act discharge permit · NPDES SD0020982
ST. LAWRENCE, TOWN OF, Saint Lawrence, SD: NPDES SD0020982 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
ST. LAWRENCE, TOWN OF, held by St. Lawrence, Town of, holds NPDES permit SD0020982, which discharges to Turtle Creek. EPA’s file records it issued December 31, 2013 and expiring December 31, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ST. LAWRENCE, TOWN OF |
|---|---|
| Permittee as filed | St. Lawrence, Town of |
| NPDES ID | SD0020982 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 31, 2013 |
| Expiration date | December 31, 2018 |
| Issuing agency | SDDENR |
| Address | Saint Lawrence, SD 57373 |
| Receiving water | Turtle Creek |
| Subwatershed | Ree Creek-Turtle Creek (HUC 101600090104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 7Under a numeric limit
- 10With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| pH | 2 | 83 | 9 | March 31, 2024 | |
| BOD, 5-day, 20 deg. C | 2 | 76 | 6 | April 30, 2022 | 61% over the limit |
| Solids, total suspended | 2 | 73 | 3 | April 30, 2022 | 20% over the limit |
| Flow rate | 2 | 80 | 0 | ||
| Temperature, water deg. centigrade | 2 | 72 | 0 | ||
| Flow, total | 1 | 37 | 0 | ||
| Duration of discharge | 1 | 35 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Nitrogen, total [as N] | 0 | 1 | 0 | ||
| Duration | 0 | 1 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES SD0020982.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, SD0020982.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID SD0020982 there.
Nearby on the register
- Discharge permits in Saint Lawrence
- Every permit record in Saint Lawrence, A to Z
- Discharge permits in South Dakota
- Every permit record in South Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.