Clean Water Act discharge permit · NPDES SD0021474
WORTHING, CITY OF, Worthing, SD: NPDES SD0021474 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
WORTHING, CITY OF, held by Worthing, City of, holds NPDES permit SD0021474, which discharges to Snake Creek. EPA’s file records it issued April 1, 2010 and expiring March 31, 2015. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WORTHING, CITY OF |
|---|---|
| Permittee as filed | Worthing, City of |
| NPDES ID | SD0021474 |
| 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 | April 1, 2010 |
| Expiration date | March 31, 2015 |
| Issuing agency | SDDENR |
| Address | Worthing, SD 57077 |
| Receiving water | Snake Creek |
| Subwatershed | Snake Creek (HUC 101701021004) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 12Pollutants on file
- 7Under a numeric limit
- 12With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 2 | 138 | 13 | July 31, 2026 | 93% over the limit |
| Solids, total suspended | 2 | 132 | 6 | April 30, 2003 | 122% over the limit |
| pH | 2 | 128 | 3 | April 30, 2023 | |
| E. coli, colony forming units [CFU] | 0 | 4 | 1 | June 30, 2024 | 1% over the limit |
| Flow rate | 2 | 128 | 0 | ||
| Temperature, water deg. centigrade | 2 | 84 | 0 | ||
| Duration of discharge | 1 | 42 | 0 | ||
| Flow, total | 1 | 39 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 5 | 0 | ||
| Flow | 0 | 3 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 6, 2026 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| June 29, 2024 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| June 23, 2024 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
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, SD0021474.
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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 SD0021474 there.
Nearby on the register
- Discharge permits in Worthing
- Every permit record in Worthing, 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 October 14, 2026.