Clean Water Act discharge permit · NPDES SD0021750
HARTFORD, CITY OF, Hartford, SD: NPDES SD0021750 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
HARTFORD, CITY OF, held by Hartford, City of, holds NPDES permit SD0021750, which discharges to Unnamed Tributary Of Skunk 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 | HARTFORD, CITY OF |
|---|---|
| Permittee as filed | Hartford, City of |
| NPDES ID | SD0021750 |
| 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 | Hartford, SD 57033 |
| Receiving water | Unnamed Tributary of Skunk Creek |
| Subwatershed | Beaver Lake (HUC 101702031101) |
| 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
- 16Pollutants on file
- 12Under a numeric limit
- 13With a violation of any kind
- 8With 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] | 6 | 58 | 46 | June 30, 2026 | 755% over the limit |
| Solids, total suspended | 2 | 148 | 23 | July 31, 2024 | 177% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 142 | 21 | November 30, 2001 | 160% over the limit |
| Solids, suspended percent removal | 0 | 42 | 19 | November 30, 2001 | 540% over the limit |
| BOD, 5-day, percent removal | 0 | 42 | 18 | November 30, 2001 | 493% over the limit |
| Coliform, fecal general | 2 | 24 | 8 | September 30, 2001 | 10,900% over the limit |
| pH | 2 | 69 | 1 | July 31, 2024 | |
| Chlorine, total residual | 0 | 23 | 1 | August 31, 1997 | 150% over the limit |
| Temperature, water deg. centigrade | 2 | 68 | 0 | ||
| Flow rate | 2 | 66 | 0 | ||
| E. coli, colony forming units [CFU] | 4 | 7 | 0 | ||
| Oil and grease visual | 1 | 1 | 0 | ||
| Nitrogen, total [as N] | 0 | 1 | 0 | ||
| Oil and grease, hexane extr method | 1 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 10, 2025 | Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
| June 27, 2024 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| June 21, 2024 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | 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.
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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 SD0021750 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 October 14, 2026.