Clean Water Act discharge permit · NPDES COG073493
NORTHFIELD VILLAGE, Boulder County, CO: NPDES COG073493 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
NORTHFIELD VILLAGE, held by Markel Homes Construction Co, holds NPDES permit COG073493, which discharges to Four Mile Creek. EPA’s file records it issued September 3, 2010 and expiring November 30, 2011. 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 | NORTHFIELD VILLAGE |
|---|---|
| Permittee as filed | Markel Homes Construction Co |
| NPDES ID | COG073493 |
| 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 | September 3, 2010 |
| Expiration date | November 30, 2011 |
| Address | Boulder County, CO 80303 |
| Receiving water | Four Mile Creek |
| Subwatershed | Fourmile Canyon Creek (HUC 101900050405) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 5Under 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 |
|---|---|---|---|---|---|
| pH | 2 | 104 | 0 | ||
| Solids, total suspended | 2 | 104 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 88 | 0 | ||
| Oil and grease | 1 | 52 | 0 | ||
| Oil and grease visual | 1 | 52 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COG073493.
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 COG073493.
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 COG073493 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.