Clean Water Act discharge permit · NPDES COX621019
CAMP TUMBLESON LAKE, Boulder County, CO: NPDES COX621019 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
CAMP TUMBLESON LAKE, held by YMCA of Northern Colorado, holds NPDES permit COX621019, which discharges to Groundwater. EPA’s file records it issued May 22, 2008 and expiring April 30, 2012. 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 | CAMP TUMBLESON LAKE |
|---|---|
| Permittee as filed | YMCA of Northern Colorado |
| NPDES ID | COX621019 |
| 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 | May 22, 2008 |
| Expiration date | April 30, 2012 |
| Address | Boulder County, CO |
| Receiving water | GROUNDWATER |
| Subwatershed | Headwaters South Saint Vrain Creek (HUC 101900050101) |
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
- 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 |
|---|---|---|---|---|---|
| Nitrite + Nitrate total [as N] | 2 | 38 | 28 | March 31, 2026 | 265% over the limit |
| pH | 6 | 41 | 17 | June 30, 2022 | |
| Coliform, total general | 8 | 43 | 10 | September 30, 2023 | 1,250% over the limit |
| Chloride [as Cl] | 5 | 16 | 0 | ||
| Sulfate, total [as SO4] | 5 | 16 | 0 | ||
| Solids, total dissolved | 3 | 16 | 0 | ||
| Water level relative to mean sea level | 3 | 16 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 4 | 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 COX621019.
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, COX621019.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 COX621019 there.
Nearby on the register
- Discharge permits in Boulder County
- Every permit record in Boulder County, A to Z
- Discharge permits in Colorado
- Every permit record in Colorado, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.