Clean Water Act discharge permit · NPDES ID0020044
BLACKFOOT, CITY OF - BLACKFOOT WWTP, Blackfoot, ID: NPDES ID0020044 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 26Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
BLACKFOOT, CITY OF - BLACKFOOT WWTP, held by BLACKFOOT, CITY OF, holds NPDES permit ID0020044, which discharges to Snake River. EPA’s file records it issued October 26, 2000 and expiring November 28, 2005. 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 | BLACKFOOT, CITY OF - BLACKFOOT WWTP |
|---|---|
| Permittee as filed | BLACKFOOT, CITY OF |
| NPDES ID | ID0020044 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | October 26, 2000 |
| Expiration date | November 28, 2005 |
| Address | Blackfoot, ID 83221 |
| Receiving water | SNAKE RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Jensen Lake-Snake River (HUC 170402060305) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 37Pollutants on file
- 26Under a numeric limit
- 37With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 9 | 120 | 34 | May 31, 2023 | 720% over the limit |
| BOD, 5-day, 20 deg. C | 11 | 108 | 16 | August 31, 2021 | 327% over the limit |
| Phosphorus, total [as P] | 4 | 68 | 16 | December 31, 2025 | 67% over the limit |
| E. coli, thermotol, MF, MTEC | 2 | 23 | 11 | May 31, 2013 | 99,999% over the limit |
| E. coli, MTEC-MF | 2 | 16 | 8 | July 31, 2021 | 496% over the limit |
| Solids, suspended percent removal | 1 | 17 | 7 | August 31, 2021 | 152% over the limit |
| Floating solids, waste or visible foam-visual | 0 | 8 | 7 | August 31, 2021 | |
| Nitrogen, ammonia total [as N] | 6 | 49 | 5 | September 30, 2022 | 90% over the limit |
| pH | 4 | 25 | 5 | October 31, 2024 | |
| Fecal coliform, MPN, EC med, 44.5 C | 1 | 7 | 1 | June 30, 2012 | 304% over the limit |
| Chlorine, total residual | 4 | 24 | 0 | ||
| Cyanide, total recoverable | 0 | 24 | 0 | ||
| Oxygen, dissolved [DO] | 4 | 19 | 0 | ||
| Turbidity | 4 | 18 | 0 | ||
| Alkalinity, total [as CaCO3] | 4 | 18 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 18 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 18 | 0 | ||
| Hardness, total [as CaCO3] | 4 | 18 | 0 | ||
| Phosphorous, in total orthophosphate | 4 | 18 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 15 | 0 | ||
| Copper, total recoverable | 0 | 14 | 0 | ||
| Mercury, total [as Hg] | 0 | 14 | 0 | ||
| Temperature, water deg. centigrade | 2 | 12 | 0 | ||
| Lead, total recoverable | 2 | 12 | 0 | ||
| Silver total recoverable | 0 | 12 | 0 | ||
| Cadmium, total recoverable | 0 | 12 | 0 | ||
| Arsenic, total recoverable | 0 | 11 | 0 | ||
| Nickel, total recoverable | 0 | 11 | 0 | ||
| Zinc, total recoverable | 0 | 11 | 0 | ||
| Chromium, total recoverable | 0 | 11 | 0 | ||
| BOD, 5-day, percent removal | 1 | 9 | 0 | ||
| Copper, dissolved [as Cu] | 2 | 6 | 0 | ||
| Lead, dissolved [as Pb] | 2 | 6 | 0 | ||
| Zinc, dissolved [as Zn] | 2 | 6 | 0 | ||
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | 2 | 2 | 0 | ||
| TU Static Renewal 7-Day Chronic Pimphales promelas | 2 | 2 | 0 | ||
| Oil and grease visual | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES ID0020044.
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 ID0020044 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.