Clean Water Act discharge permit · NPDES SD0023701
EDGEMONT, CITY OF, Edgemont, SD: NPDES SD0023701 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
EDGEMONT, CITY OF, held by Edgemont, City of, holds NPDES permit SD0023701, which discharges to Cheyenne River. EPA’s file records it issued March 1, 2019 and expiring December 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EDGEMONT, CITY OF |
|---|---|
| Permittee as filed | Edgemont, City of |
| NPDES ID | SD0023701 |
| 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 | March 1, 2019 |
| Expiration date | December 31, 2023 |
| Issuing agency | SDDANR |
| Address | Edgemont, SD 57735 |
| Receiving water | CHEYENNE RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cheyenne River-Sheep Canyon (HUC 101201060204) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 9Under a numeric limit
- 11With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 14 | 31 | 3 | March 31, 2016 | 106% over the limit |
| pH | 2 | 32 | 2 | March 31, 2015 | |
| Temperature, water deg. centigrade | 2 | 30 | 0 | ||
| Flow rate | 2 | 30 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 30 | 0 | ||
| Solids, total suspended | 2 | 30 | 0 | ||
| Coliform, fecal general | 0 | 16 | 0 | ||
| Duration of discharge | 1 | 15 | 0 | ||
| Flow, total | 1 | 13 | 0 | ||
| E. coli, colony forming units [CFU] | 2 | 4 | 0 | ||
| Chlorine, total residual | 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 SD0023701.
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
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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 SD0023701 there.
Nearby on the register
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- Every permit record in South Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.