Clean Water Act discharge permit · NPDES MO0121975
WASHINGTON SLF SILT POND, Washington, MO: NPDES MO0121975 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
WASHINGTON SLF SILT POND, held by City of Washington, holds NPDES permit MO0121975, which discharges to Trib. To St. John'S Cr.. EPA’s file records it issued August 22, 2017 and expiring June 30, 2021. 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 | WASHINGTON SLF SILT POND |
|---|---|
| Permittee as filed | City of Washington |
| NPDES ID | MO0121975 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | August 22, 2017 |
| Expiration date | June 30, 2021 |
| Address | Washington, MO 63090 |
| Receiving water | Trib. to St. John's Cr. |
| Subwatershed | Lower St Johns Creek (HUC 103002000503) |
| SIC | 4953 – Refuse 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
- 22Pollutants on file
- 17Under a numeric limit
- 22With a violation of any kind
- 6With 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 | 1 | 37 | 35 | December 31, 2018 | 7,283% over the limit |
| Solids, settleable | 0 | 4 | 4 | May 31, 2010 | 9,400% over the limit |
| Oil and grease [soxhlet extr.] tot. | 1 | 5 | 3 | September 30, 2019 | 780% over the limit |
| Oxygen demand, chem. [high level] [COD] | 0 | 3 | 3 | June 30, 2014 | 110% over the limit |
| pH | 2 | 6 | 2 | December 31, 2019 | |
| Benzene, ethylbenzene, toluene, xylene combination | 0 | 2 | 2 | March 31, 2006 | 1,233% over the limit |
| Sulfate [as S] | 1 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 2 | 0 | ||
| Iron, total recoverable | 1 | 2 | 0 | ||
| Selenium, total recoverable | 1 | 2 | 0 | ||
| Thallium, total recoverable | 1 | 2 | 0 | ||
| Zinc, total recoverable | 1 | 2 | 0 | ||
| Copper, total recoverable | 1 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 1 | 2 | 0 | ||
| Benzene | 1 | 2 | 0 | ||
| Chloride | 1 | 2 | 0 | ||
| Chemical oxygen demand [COD] | 1 | 2 | 0 | ||
| Storm water flow | 1 | 2 | 0 | ||
| Specific conductance | 0 | 2 | 0 | ||
| Manganese, total recoverable | 1 | 1 | 0 | ||
| Rainfall | 1 | 1 | 0 | ||
| Chlorides + Sulfates | 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 MO0121975.
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 MO0121975 there.
Nearby on the register
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- Every permit record in Washington, A to Z
- Discharge permits in Missouri
- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.