Clean Water Act discharge permit · NPDES COG502170
INOUYE GRAVEL MINE, Fort Lupton, CO: NPDES COG502170 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
INOUYE GRAVEL MINE, held by Burnco, holds NPDES permit COG502170, which discharges to Little Dry Creek And South Platte River. EPA’s file records it issued February 22, 2019 and expiring December 31, 2021. 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 | INOUYE GRAVEL MINE |
|---|---|
| Permittee as filed | Burnco |
| NPDES ID | COG502170 |
| 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 | February 22, 2019 |
| Expiration date | December 31, 2021 |
| Address | Fort Lupton, CO 80621 |
| Receiving water | Little Dry Creek and South Platte River |
| Subwatershed | City of Fort Lupton-South Platte River (HUC 101900030602) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 8Under a numeric limit
- 8With a violation of any kind
- 1With 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 | 6 | 6 | 4 | December 31, 2025 | 4,082% over the limit |
| pH | 6 | 2 | 0 | ||
| Iron, total recoverable | 6 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 2 | 0 | ||
| Conductivity | 3 | 1 | 0 | ||
| Oil and grease | 3 | 1 | 0 | ||
| Flow, total | 3 | 1 | 0 | ||
| Oil and grease visual | 3 | 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 COG502170.
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 COG502170 there.
Nearby on the register
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- Every permit record in Colorado, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.