Clean Water Act discharge permit · NPDES SD0000281
USAF - ELLSWORTH AFB, Ellsworth Air Force Base, SD: NPDES SD0000281 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 40Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
USAF - ELLSWORTH AFB holds NPDES permit SD0000281, which discharges to Box Elder Creek And Elk Creek. EPA’s file records it issued May 23, 2005 and expiring June 30, 2010. 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 | USAF - ELLSWORTH AFB |
|---|---|
| Permittee as filed | USAF - ELLSWORTH AFB |
| NPDES ID | SD0000281 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Federal facility |
| Issued | May 23, 2005 |
| Expiration date | June 30, 2010 |
| Issuing agency | SDDENR |
| Address | Ellsworth Air Force Base, SD 57706 |
| Receiving water | BOX ELDER CREEK AND ELK CREEK |
| Subwatershed | Ellsworth Air Force Base-Boxelder Creek (HUC 101201110401) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 41Pollutants on file
- 40Under a numeric limit
- 32With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 20 | 14 | 6 | April 30, 2003 | 46% over the limit |
| Oil and grease visual | 6 | 8 | 6 | May 31, 2019 | 2,147,483,650% over the limit |
| Coliform, fecal general | 8 | 4 | 2 | September 30, 2002 | 99,999% over the limit |
| Floating solids, waste or visible foam-visual | 6 | 2 | 2 | March 31, 2016 | |
| pH | 30 | 17 | 1 | August 31, 1997 | |
| Solids, total suspended | 9 | 5 | 1 | March 31, 2009 | 206% over the limit |
| Chlorine, total residual | 5 | 3 | 1 | February 28, 2009 | 0% over the limit |
| Hydrocarbons, petroleum | 6 | 1 | 1 | May 31, 2019 | 9% over the limit |
| Flow rate | 20 | 10 | 0 | ||
| Nitrogen, ammonia total [as N] | 52 | 4 | 0 | ||
| Temperature, water deg. centigrade | 8 | 4 | 0 | ||
| Conductivity | 8 | 4 | 0 | ||
| Alkalinity, total [as CaCO3] | 8 | 4 | 0 | ||
| Nitrogen, nitrate total [as N] | 8 | 4 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 8 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 4 | 2 | 0 | ||
| Oil & Grease | 4 | 2 | 0 | ||
| E. coli, colony forming units [CFU] | 0 | 2 | 0 | ||
| Arsenic, total [as As] | 4 | 1 | 0 | ||
| Beryllium, total [as Be] | 4 | 1 | 0 | ||
| Cadmium, total [as Cd] | 4 | 1 | 0 | ||
| Chromium, total [as Cr] | 4 | 1 | 0 | ||
| Copper, total [as Cu] | 4 | 1 | 0 | ||
| Lead, total [as Pb] | 4 | 1 | 0 | ||
| Thallium, total [as Tl] | 4 | 1 | 0 | ||
| Nickel, total [as Ni] | 4 | 1 | 0 | ||
| Silver, total [as Ag] | 4 | 1 | 0 | ||
| Zinc, total [as Zn] | 4 | 1 | 0 | ||
| Antimony, total [as Sb] | 4 | 1 | 0 | ||
| Selenium, total [as Se] | 4 | 1 | 0 | ||
| Phenols | 4 | 1 | 0 | ||
| Mercury, total [as Hg] | 4 | 1 | 0 | ||
| Benzene, ethylbenzene, toluene, xylene combination | 12 | 0 | 0 | ||
| Naphthalene | 12 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 4 | 0 | 0 | ||
| Cyanide, total [as CN] | 4 | 0 | 0 | ||
| Molybdenum, total [as Mo] | 4 | 0 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 2 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES SD0000281.
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 SD0000281 there.
Nearby on the register
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- Every permit record in Ellsworth Air Force Base, 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 September 15, 2026.