NPDES SD0020176 · Clean Water Act
PIERRE, CITY OF, Pierre, SD: NPDES SD0020176 discharge permit, effluent exceedances, inspections, penalties
PIERRE, CITY OF, Pierre, South Dakota: Individual permit SD0020176, held by Pierre, City of; Publicly owned treatment works; Administratively continued; issued September 25, 2015, term to September 30, 2020, by SDDENR; discharges to LAKE SHARPE/MISSOURI RIVER; Sewage Treatment Facilities.
29 of the 40 pollutants listed for NPDES SD0020176 have no violation or effluent exceedance.
- Coliform, total general: 2 limits, 14 violations of any kind, 14 effluent exceedances, latest August 31, 2022, largest 750% over the limit.
- Coliform, fecal general: 0 limits, 14 violations of any kind, 14 effluent exceedances, latest September 30, 2015, largest 8,650% over the limit.
- Solids, total suspended: 3 limits, 10 violations of any kind, 10 effluent exceedances, latest June 30, 2025, largest 249% over the limit.
- BOD, 5-day, 20 deg. C: 3 limits, 6 violations of any kind, 6 effluent exceedances, latest June 30, 2022, largest 183% over the limit.
- Chlorine, total residual: 1 limit, 6 violations of any kind, 6 effluent exceedances, latest December 31, 2015, largest 1,216% over the limit.
- E. coli, colony forming units [CFU]: 2 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2024, largest 930% over the limit.
- pH: 2 limits, 3 violations of any kind, 3 effluent exceedances, latest November 30, 2015.
- Toxicity [acute], Pimephales promelas [Fathead Minnow]: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest December 31, 2022, largest 230% over the limit.
- Solids, suspended percent removal: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2022, largest 100% over the limit.
- BOD, 5-day, percent removal: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest June 30, 2022, largest 15% over the limit.
- Antimony, total [as Sb]: 0 limits, 1 violation of any kind.
- Report due [yrmoda]: 6 limits.
- Temperature, water deg. centigrade: 2 limits.
- Flow rate: 2 limits.
- Oxygen, dissolved [DO]: 2 limits.
- Nitrogen, ammonia total [as N]: 2 limits.
- Cyanide, weak acid, dissociable: 2 limits.
- Cyanide, total [as CN]: 2 limits.
- Hardness, total [as CaCO3]: 2 limits.
- Arsenic, total recoverable: 2 limits.
- Selenium, total recoverable: 2 limits.
- Thallium, total recoverable: 2 limits.
- Beryllium, total recoverable [as Be]: 2 limits.
- Nickel, total recoverable: 2 limits.
- Silver total recoverable: 2 limits.
- Zinc, total recoverable: 2 limits.
- Cadmium, total recoverable: 2 limits.
- Lead, total recoverable: 2 limits.
- Chromium, total recoverable: 2 limits.
- Copper, total recoverable: 2 limits.
- Molybdenum, total recoverable: 2 limits.
- Antimony, total recoverable: 2 limits.
- Phenols: 2 limits.
- Mercury, total recoverable: 2 limits.
- Oil and grease, hexane extr method: 1 limit.
- Nitrogen, total [as N]: 1 limit.
- Phosphorus, total [as P]: 1 limit.
- Peracetic Acid: 1 limit.
- Toxicity [acute], Ceriodaphnia dubia: 1 limit.
- Oil and grease visual: 1 limit.
- July 28, 2026: Evaluation (S).
- March 26, 2026: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- March 24, 2026: Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment (ST6).
- March 15, 2026: Failure to submit report to the permitting authority of any anticipated bypass [122.41(m)(3)(i)] (ST6).
- September 1, 2025: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (ST6).
- August 26, 2025: Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment (ST6).
- August 26, 2025: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- November 1, 2024: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- July 23, 2024: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- May 3, 2024: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- January 14, 2024: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- September 28, 2023: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (ST6).
- September 22, 2023: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- August 20, 2023: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (ST6).
- August 14, 2023: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- June 22, 2023: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (ST6).
- June 16, 2023: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- June 13, 2023: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (ST6).
- June 7, 2023: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
- May 7, 2023: PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] (ST6).
- May 1, 2023: Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment (ST6).
- April 23, 2023: Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment (ST6).
South Dakota holds 224 Publicly owned treatment works coverages of this permit type in EPA’s file; 132 were issued before SD0020176.
Coverages issued nearest SD0020176
- 2014-12-29: SELBY, CITY OF, Selby: SD0021717, held by Selby, City of
- 2015-03-04: SD GFP - GAME LODGE (CUSTER STATE PARK), Custer: SD0024244, held by SD GFP - Game Lodge (Custer State Park)
- 2015-03-04: WALL LAKE SANITARY DISTRICT, Hartford: SD0026778, held by Wall Lake Sanitary District
- 2015-03-23: IPSWICH, CITY OF, Ipswich: SD0022519, held by Ipswich, City of
- 2015-09-24: WHITE RIVER, CITY OF, White River: SD0022063, held by White River, City of
- 2015-09-25: YANKTON, CITY OF, Yankton: SD0023396, held by Yankton, City of
- 2015-12-21: LOWER BRULE LAGOON SYSTEM, Lower Brule: SD0020800, held by Lower Brule Wastewater Lagoon System
- 2016-03-31: ALPENA, TOWN OF, Alpena: SD0025887, held by Alpena, Town of
- 2016-03-31: COFFEE CUP FUEL STOPS, Junction City: SD0027456, held by Coffee Cup Fuel Stops
- 2016-04-01: COLTON, CITY OF, Colton: SD0022322, held by Colton, City of
PIERRE, CITY OF among its neighbors
17 discharge permits are in the Bad River-Missouri River subwatershed (HUC 101401010302); SD0020176 is one. Its county: 18, 1 major; SD0020176 is major permit.
Other permits in the Bad River-Missouri River subwatershed (HUC 101401010302)
- BECKER-HANSEN PARKING LOT RECONSTRUCTION, Pierre: SDR10P5YY, minor, term to 2028-10-31
- CIRCLE OF CARE VETERINARY CENTER, Pierre: SDR10P5T0, minor, term to 2028-10-31
- MID-DAKOTA BACKWASH RECOVERY, Pierre: SDR10P587, minor, term to 2028-10-31
- MID-DAKOTA RURAL WATER SYSTEMS INC, Pierre: SDGA20012, minor, term to 2025-09-30
- NEW DOH PUBLIC HEALTH LABORATORY, Pierre: SDR10P56U, minor, term to 2028-10-31
- PCN 026Z, Pierre: SDR10P5FH, minor, term to 2028-10-31
- PIERRE OUTDOOR POOL, Pierre: SDR10K391, minor, term to 2023-03-31
- PIERRE VALVOLINE, Pierre: SDR10P5XC, minor, term to 2028-10-31
- PIERRE, CITY OF (BIOSOLIDS), Pierre, City Of: SDL020176, minor, term to 2018-03-31
- PIERRE, CITY OF (BIOSOLIDS), Pierre: SDLG20176, minor, term to 2028-08-31
Identity
| Facility | PIERRE, CITY OF |
|---|---|
| Permittee | Pierre, City of |
| NPDES ID | SD0020176 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 25, 2015 |
| Expires | September 30, 2020 |
| Agency | SDDENR |
| Address | Pierre, SD 57501 |
| Receiving water | LAKE SHARPE/MISSOURI RIVER |
| Subwatershed | Bad River-Missouri River (HUC 101401010302) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
NPDES SD0020176: effluent limits and exceedances
PIERRE, CITY OF (NPDES SD0020176): 40 pollutants on file, 38 limited; 11 with a violation of any kind, 10 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Coliform, total general | 2 | 14 | 14 | August 31, 2022 | 750% over the limit |
| Coliform, fecal general | 0 | 14 | 14 | September 30, 2015 | 8,650% over the limit |
| Solids, total suspended | 3 | 10 | 10 | June 30, 2025 | 249% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 6 | 6 | June 30, 2022 | 183% over the limit |
| Chlorine, total residual | 1 | 6 | 6 | December 31, 2015 | 1,216% over the limit |
| E. coli, colony forming units [CFU] | 2 | 4 | 4 | June 30, 2024 | 930% over the limit |
| pH | 2 | 3 | 3 | November 30, 2015 | |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 2 | 2 | December 31, 2022 | 230% over the limit |
| Solids, suspended percent removal | 1 | 2 | 2 | June 30, 2022 | 100% over the limit |
| BOD, 5-day, percent removal | 1 | 1 | 1 | June 30, 2022 | 15% over the limit |
| Antimony, total [as Sb] | 0 | 1 | 0 | ||
| Report due [yrmoda] | 6 | 0 | 0 | ||
| Temperature, water deg. centigrade | 2 | 0 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 2 | 0 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Arsenic, total recoverable | 2 | 0 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Thallium, total recoverable | 2 | 0 | 0 | ||
| Beryllium, total recoverable [as Be] | 2 | 0 | 0 | ||
| Nickel, total recoverable | 2 | 0 | 0 | ||
| Silver total recoverable | 2 | 0 | 0 | ||
| Zinc, total recoverable | 2 | 0 | 0 | ||
| Cadmium, total recoverable | 2 | 0 | 0 | ||
| Lead, total recoverable | 2 | 0 | 0 | ||
| Chromium, total recoverable | 2 | 0 | 0 | ||
| Copper, total recoverable | 2 | 0 | 0 | ||
| Molybdenum, total recoverable | 2 | 0 | 0 | ||
| Antimony, total recoverable | 2 | 0 | 0 | ||
| Phenols | 2 | 0 | 0 | ||
| Mercury, total recoverable | 2 | 0 | 0 | ||
| Oil and grease, hexane extr method | 1 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 | ||
| Peracetic Acid | 1 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Oil and grease visual | 1 | 0 | 0 |
NPDES SD0020176: inspections, violations and enforcement
NPDES SD0020176: 21 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 26, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 24, 2026 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| March 15, 2026 | Failure to submit report to the permitting authority of any anticipated bypass [122.41(m)(3)(i)] | ST6 |
| September 1, 2025 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| August 26, 2025 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| August 26, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| November 1, 2024 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| July 23, 2024 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| May 3, 2024 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| January 14, 2024 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| September 28, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| September 22, 2023 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| August 20, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| August 14, 2023 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| June 22, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| June 16, 2023 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| June 13, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| June 7, 2023 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| May 7, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| May 1, 2023 | Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 23, 2023 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
NPDES SD0020176: 1 inspection
| Date | What EPA recorded | Agency |
|---|---|---|
| July 28, 2026 | Evaluation | S |
NPDES SD0020176 (PIERRE, CITY OF): no formal enforcement action and informal enforcement action on file.
Watch NPDES SD0020176
NPDES SD0020176: one email when its EPA record changes — $99/month.
Permits near NPDES SD0020176
NPDES SD0020176: 40 pollutant rows, 22 dated events; ICIS-NPDES download, loaded October 14, 2026.