Clean Water Act discharge permit · NPDES AZC109183
WILLARD SPRINGS WILDLIFE OVERPASS, AZ: NPDES AZC109183 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
WILLARD SPRINGS WILDLIFE OVERPASS, held by Sema Construction, Inc., holds NPDES permit AZC109183. EPA’s file records it issued April 25, 2025 and expiring June 30, 2025. 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 WILLARD SPRINGS WILDLIFE OVERPASS: its NPDES ID, its permit type and status, its dates, its address, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC109183.
Identity
| Facility as filed | WILLARD SPRINGS WILDLIFE OVERPASS |
|---|---|
| Permittee as filed | Sema Construction, Inc. |
| NPDES ID | AZC109183 |
| 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 | April 25, 2025 |
| Expiration date | June 30, 2025 |
| Address | AZ 85072 |
| Subwatershed | Munds Canyon (HUC 150602020504) |
Cited to the EPA ICIS-NPDES permit file (ECHO 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 AZC109183.
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 AZC109183.
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.
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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 AZC109183 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.