Clean Water Act discharge permit · NPDES COG500408
MAMM CREEK GRAVEL PIT, Rifle, CO: NPDES COG500408 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MAMM CREEK GRAVEL PIT, held by Oldcastle SW Group Inc, holds NPDES permit COG500408, which discharges to Colorado River. EPA’s file records it issued June 13, 2008 and expiring June 30, 2013. 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 | MAMM CREEK GRAVEL PIT |
|---|---|
| Permittee as filed | Oldcastle SW Group Inc |
| NPDES ID | COG500408 |
| 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 |
| Issued | June 13, 2008 |
| Expiration date | June 30, 2013 |
| Address | Rifle, CO 81601 |
| Receiving water | COLORADO RIVER |
| Subwatershed | Rifle Gap Reservoir (HUC 140100050505) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 7Under a numeric limit
- 8With 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 |
|---|---|---|---|---|---|
| pH | 8 | 10 | 0 | ||
| Solids, total suspended | 8 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 8 | 0 | ||
| Solids, total dissolved | 8 | 8 | 0 | ||
| Iron, total [as Fe] | 8 | 6 | 0 | ||
| Oil and grease | 4 | 4 | 0 | ||
| Oil and grease visual | 4 | 4 | 0 | ||
| Flow, total | 0 | 3 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG500408.
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 COG500408.
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, COG500408.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 COG500408 there.
Nearby on the register
- Discharge permits in Rifle
- Every permit record in Rifle, A to Z
- Discharge permits in Colorado
- Every permit record in Colorado, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.