Clean Water Act discharge permit · NPDES SD0020354
PLATTE, CITY OF, Platte, SD: NPDES SD0020354 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
PLATTE, CITY OF, held by Platte, City of, holds NPDES permit SD0020354, which discharges to Unnamed Tributary Of Platte Creek. EPA’s file records it issued August 10, 2018 and expiring August 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 | PLATTE, CITY OF |
|---|---|
| Permittee as filed | Platte, City of |
| NPDES ID | SD0020354 |
| 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 | August 10, 2018 |
| Expiration date | August 31, 2023 |
| Issuing agency | SDDANR |
| Address | Platte, SD 57369 |
| Receiving water | Unnamed Tributary of Platte Creek |
| Subwatershed | Dry Creek-Platte Creek (HUC 101401011308) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 9Under a numeric limit
- 13With a violation of any kind
- 5With 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] | 8 | 86 | 51 | April 30, 2024 | 3,002% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 67 | 33 | April 30, 2026 | 502% over the limit |
| Solids, total suspended | 2 | 60 | 26 | April 30, 2026 | 500% over the limit |
| pH | 2 | 48 | 16 | April 30, 2026 | |
| Coliform, fecal general | 0 | 1 | 1 | June 30, 2008 | 115% over the limit |
| Flow rate | 2 | 33 | 0 | ||
| Temperature, water deg. centigrade | 2 | 32 | 0 | ||
| Flow, total | 1 | 15 | 0 | ||
| Duration of discharge | 1 | 15 | 0 | ||
| E. coli, colony forming units [CFU] | 2 | 10 | 0 | ||
| Nitrogen, total [as N] | 0 | 6 | 0 | ||
| Phosphorus, total [as P] | 0 | 6 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 10, 2024 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| March 4, 2024 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| March 4, 2023 | Permit Violations - Failure to Submit Timely Permit Renewal Application | 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
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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 SD0020354 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.