Clean Water Act discharge permit · NPDES SDG921806
CAVOUR, TOWN OF, Cavour, SD: NPDES SDG921806 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
CAVOUR, TOWN OF, held by Cavour, Town of, holds NPDES permit SDG921806, which discharges to Unnamed Wetland. EPA’s file records it issued November 3, 2016 and expiring December 31, 2020. 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 | CAVOUR, TOWN OF |
|---|---|
| Permittee as filed | Cavour, Town of |
| NPDES ID | SDG921806 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 3, 2016 |
| Expiration date | December 31, 2020 |
| Issuing agency | SDDENR |
| Address | Cavour, SD 57324 |
| Receiving water | Unnamed Wetland |
| Subwatershed | Lake Cavour (HUC 101600061008) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 8Under a numeric limit
- 5With 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 | 7 | 1 | May 31, 2023 | |
| BOD, 5-day, 20 deg. C | 2 | 5 | 1 | April 30, 2025 | 23% over the limit |
| Solids, total suspended | 2 | 3 | 1 | May 31, 2023 | 18% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 6 | 0 | ||
| Temperature, water deg. centigrade | 2 | 2 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| Flow, total | 1 | 0 | 0 | ||
| Duration of discharge | 1 | 0 | 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 SDG921806.
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.
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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 SDG921806 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.