Clean Water Act discharge permit · NPDES COR090019
BOULDER MS4, Boulder, CO: NPDES COR090019 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
BOULDER MS4, held by Boulder City of, holds NPDES permit COR090019, which discharges to Boulder Creek To St. Vrain River. EPA’s file records it issued March 10, 2008 and expiring March 9, 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.
What the register holds for BOULDER MS4: its NPDES ID, its permit type and status, its dates, its address in Boulder, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR090019.
Identity
| Facility as filed | BOULDER MS4 |
|---|---|
| Permittee as filed | Boulder City of |
| NPDES ID | COR090019 |
| 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 |
| Program | Small municipal storm sewer systems |
| Issued | March 10, 2008 |
| Expiration date | March 9, 2013 |
| Address | Boulder, CO 80301 |
| Receiving water | Boulder Creek to St. Vrain River |
| Subwatershed | Dry Creek-Boulder Creek (HUC 101900050601) |
| Other EPA IDs (FRS) | RCRA handler COT000622266; ICIS-AIR source CO0000000801300057 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES COR090019.
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 COR090019.
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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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 COR090019 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.