Clean Water Act discharge permit · NPDES COG501616
HOME OFFICE PIT, Fort Collins, CO: NPDES COG501616 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
HOME OFFICE PIT, held by Martin Marietta Materials Inc, holds NPDES permit COG501616, which discharges to Cache La Poudre River. EPA’s file records it issued June 24, 2016 and expiring December 31, 2017. 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 | HOME OFFICE PIT |
|---|---|
| Permittee as filed | Martin Marietta Materials Inc |
| NPDES ID | COG501616 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 24, 2016 |
| Expiration date | December 31, 2017 |
| Address | Fort Collins, CO 80521 |
| Receiving water | Cache la Poudre River |
| Subwatershed | City of Fort Collins-Cache La Poudre River (HUC 101900070805) |
| SIC | 1442 – Construction Sand And Gravel |
| Other EPA IDs (FRS) | RCRA handler COD004794301; ICIS-AIR source CO0000000806900128 |
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
- 8Pollutants on file
- 6Under a numeric limit
- 8With a violation of any kind
- 3With 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 | 10 | 11 | 1 | June 30, 2018 | |
| Solids, total suspended | 10 | 11 | 1 | September 30, 2016 | 18% over the limit |
| Copper, potentially dissolved | 0 | 2 | 1 | December 31, 2021 | 76% over the limit |
| Copper, dissolved [as Cu] | 10 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 10 | 10 | 0 | ||
| Oil and grease | 5 | 5 | 0 | ||
| Oil and grease visual | 5 | 5 | 0 | ||
| Arsenic, total recoverable | 0 | 2 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 6, 2024 | Management Practice Violations - Failure to Maintain Records | ST6 |
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 COG501616 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.