Clean Water Act discharge permit · NPDES COR090100
521 DRAINAGE AUTHORITY MS4, Grand Junction, CO: NPDES COR090100 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
521 DRAINAGE AUTHORITY MS4, held by 5-2-1 Drainage Authority, holds NPDES permit COR090100, which discharges to Colorado River. EPA’s file records it issued February 1, 2010 and expiring March 9, 2013. 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.
What the register holds for 521 DRAINAGE AUTHORITY MS4: its NPDES ID, its permit type and status, its dates, its address in Grand Junction, Colorado, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR090100.
Identity
| Facility as filed | 521 DRAINAGE AUTHORITY MS4 |
|---|---|
| Permittee as filed | 5-2-1 Drainage Authority |
| NPDES ID | COR090100 |
| 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 | February 1, 2010 |
| Expiration date | March 9, 2013 |
| Address | Grand Junction, CO 81505 |
| Receiving water | Colorado River |
| Subwatershed | Indian Wash-Colorado River (HUC 140100051503) |
| SIC | 9511 – Air, Water, & Solid Waste Management |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
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 COR090100.
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 COR090100.
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, COR090100.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 COR090100 there.
Nearby on the register
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- Every permit record in Grand Junction, A to Z
- Discharge permits in Colorado
- Every permit record in Colorado, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.