Clean Water Act discharge permit · NPDES COR900632
CASTLE ROCK PLANT, Castle Rock, CO: NPDES COR900632 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 3Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CASTLE ROCK PLANT, held by Schmidt Construction Co, holds NPDES permit COR900632, which discharges to East Plum Creek -Plum Creek. EPA’s file records it issued June 25, 2012 and expiring June 30, 2017. 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 | CASTLE ROCK PLANT |
|---|---|
| Permittee as filed | Schmidt Construction Co |
| NPDES ID | COR900632 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | June 25, 2012 |
| Expiration date | June 30, 2017 |
| Address | Castle Rock, CO 80104 |
| Receiving water | East Plum Creek -Plum Creek |
| Subwatershed | Lower East Plum Creek (HUC 101900020504) |
| Other EPA IDs (FRS) | ICIS-AIR source CO0000000803500088 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 3Pollutants on file
- 3Under a numeric limit
- 3With a violation of any kind
- 0With 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 | 19 | 0 | ||
| pH | 6 | 11 | 0 | ||
| Oil and grease | 6 | 10 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR900632.
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 COR900632.
Inspections
EPA’s inspection file holds no inspection for NPDES COR900632.
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 COR900632.
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, COR900632.
Start the watch
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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 COR900632 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.