Clean Water Act discharge permit · NPDES COR901712
TANCO ENGINEERING INC, Loveland, CO: NPDES COR901712 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
TANCO ENGINEERING INC, held by Tanco Engineering Inc, holds NPDES permit COR901712, which discharges to Unnamed Railroad Ditch To Big Thompson River. EPA’s file records it issued November 26, 2025 and expiring June 30, 2029. 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 | TANCO ENGINEERING INC |
|---|---|
| Permittee as filed | Tanco Engineering Inc |
| NPDES ID | COR901712 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | November 26, 2025 |
| Expiration date | June 30, 2029 |
| Address | Loveland, CO 80537 |
| Receiving water | unnamed railroad ditch to Big Thompson River |
| Subwatershed | Boyd Lake-Big Thompson River (HUC 101900060605) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 4With 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 |
|---|---|---|---|---|---|
| Nitrite + Nitrate total [as N] | 1 | 3 | 0 | ||
| Iron, total recoverable | 1 | 3 | 0 | ||
| Zinc, total recoverable | 1 | 3 | 0 | ||
| Aluminum, total recoverable | 1 | 3 | 0 | ||
| Are You In Compliance | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR901712.
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 COR901712.
Inspections
EPA’s inspection file holds no inspection for NPDES COR901712.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES COR901712.
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 COR901712 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.