Clean Water Act discharge permit · NPDES COR901597
CORNERSTONE MOBILE CONCRETE BATCH PLANT, Statewide, CO: NPDES COR901597 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 3Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
CORNERSTONE MOBILE CONCRETE BATCH PLANT, held by Cornerstone Winter Park Holdings LLC, holds NPDES permit COR901597, which discharges to Elk Creek. EPA’s file records it issued February 24, 2022 and expiring December 31, 2025. 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 | CORNERSTONE MOBILE CONCRETE BATCH PLANT |
|---|---|
| Permittee as filed | Cornerstone Winter Park Holdings LLC |
| NPDES ID | COR901597 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | February 24, 2022 |
| Expiration date | December 31, 2025 |
| Address | Statewide, CO |
| Receiving water | Elk Creek |
| Subwatershed | Middle Fraser River (HUC 140100010206) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 3Under a numeric limit
- 5With 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 |
|---|---|---|---|---|---|
| Selenium, potentially dissolvd | 2 | 2 | 0 | ||
| Solids, total suspended | 1 | 2 | 0 | ||
| pH | 0 | 2 | 0 | ||
| Iron, total [as Fe] | 1 | 1 | 0 | ||
| Iron, total recoverable | 0 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR901597.
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 COR901597.
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
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, COR901597.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 COR901597 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.