Clean Water Act discharge permit · NPDES AZC113174
STATE HIGHWAY-PRESCOTT-FLAGSTAFF HWY.-SR 89A/ 089A CN 375 387 & 388, AZ: NPDES AZC113174 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
STATE HIGHWAY-PRESCOTT-FLAGSTAFF HWY.-SR 89A/ 089A CN 375 387 & 388, held by Arizona Department Of Transportation - Northcentral District, holds NPDES permit AZC113174, which discharges to Unnamed Trib (Upm) To Pumphouse Wash | Headwat. EPA’s file records it issued November 3, 2025 and expiring August 28, 2030. 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 STATE HIGHWAY-PRESCOTT-FLAGSTAFF HWY.-SR 89A/ 089A CN 375 387 & 388: its NPDES ID, its permit type and status, its dates, its address, Arizona, its receiving water, and 4 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC113174.
Identity
| Facility as filed | STATE HIGHWAY-PRESCOTT-FLAGSTAFF HWY.-SR 89A/ 089A CN 375 387 & 388 |
|---|---|
| Permittee as filed | Arizona Department Of Transportation - Northcentral District |
| NPDES ID | AZC113174 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 3, 2025 |
| Expiration date | August 28, 2030 |
| Issuing agency | ADEQ |
| Address | AZ 85016 |
| Receiving water | Unnamed Trib (UPM) to Pumphouse Wash | Headwat |
| Subwatershed | Pumphouse Wash (HUC 150602020502) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 4Pollutants on file
- 4Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| Nitrogen, total [as N] | 6 | 0 | 0 | ||
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| E. coli, colony forming units [CFU] | 6 | 0 | 0 | ||
| Turbidity | 3 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES AZC113174.
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 AZC113174.
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, AZC113174.
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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 AZC113174 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.