Clean Water Act discharge permit · NPDES MO0004766
CHAMOIS POWER PLANT, Chamois, MO: NPDES MO0004766 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 24Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CHAMOIS POWER PLANT, held by Chamois LLC, holds NPDES permit MO0004766, which discharges to Tributary To Dooling Cr.. EPA’s file records it issued November 2, 2017 and expiring June 30, 2020. 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 | CHAMOIS POWER PLANT |
|---|---|
| Permittee as filed | Chamois LLC |
| NPDES ID | MO0004766 |
| 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 | November 2, 2017 |
| Expiration date | June 30, 2020 |
| Address | Chamois, MO 65024 |
| Receiving water | Tributary to Dooling Cr. |
| Subwatershed | Deer Creek-Missouri River (HUC 103001021606) |
| NAICS | 221112 – Fossil Fuel Electric Power Generation |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler MOD029724747 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 25Pollutants on file
- 24Under a numeric limit
- 25With a violation of any kind
- 2With 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 | 2 | 15 | 13 | June 30, 2009 | 6,177% over the limit |
| pH | 12 | 26 | 1 | December 31, 2009 | |
| Sulfate, total [as SO4] | 12 | 24 | 0 | ||
| Boron, total recoverable | 12 | 24 | 0 | ||
| Molybdenum, total recoverable | 12 | 24 | 0 | ||
| Selenium, total recoverable | 11 | 23 | 0 | ||
| Turbidity | 10 | 22 | 0 | ||
| Lithium, total [as Li] | 10 | 22 | 0 | ||
| Depth to water level ft below landsurface | 10 | 22 | 0 | ||
| Arsenic, total recoverable | 9 | 21 | 0 | ||
| Calcium, total [as Ca] | 6 | 18 | 0 | ||
| Manganese, total [as Mn] | 1 | 13 | 0 | ||
| Volume | 0 | 12 | 0 | ||
| Chloride | 10 | 10 | 0 | ||
| Manganese, total recoverable | 9 | 9 | 0 | ||
| Calcium, total recoverable | 4 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 2 | 0 | ||
| Chloride [as Cl] | 2 | 2 | 0 | ||
| Iron, total recoverable | 2 | 2 | 0 | ||
| Aluminum, total recoverable | 2 | 2 | 0 | ||
| Precipitation volume | 2 | 2 | 0 | ||
| Chlorides + Sulfates | 2 | 2 | 0 | ||
| Arsenic, total [as As] | 1 | 1 | 0 | ||
| Selenium, total [as Se] | 1 | 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 MO0004766.
Inspections
EPA’s inspection file holds no inspection for NPDES MO0004766.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES MO0004766.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MO0004766.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
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How we handle your data → Privacy
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 MO0004766 there.
Nearby on the register
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- Every permit record in Chamois, A to Z
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- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.