Clean Water Act discharge permit · NPDES AZ0000124
WILLIAMS CREEK HATCHERY, Mcnary, AZ: NPDES AZ0000124 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
WILLIAMS CREEK HATCHERY, held by US FISH & WILDLIFE SERVICE, holds NPDES permit AZ0000124, which discharges to Williams Creek And North Fork,White. EPA’s file records it issued December 10, 2013 and expiring January 31, 2019. 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.
Identity
| Facility as filed | WILLIAMS CREEK HATCHERY |
|---|---|
| Permittee as filed | US FISH & WILDLIFE SERVICE |
| NPDES ID | AZ0000124 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Federal facility |
| Issued | December 10, 2013 |
| Expiration date | January 31, 2019 |
| Address | Mcnary, AZ 85935 |
| Receiving water | WILLIAMS CREEK AND NORTH FORK,WHITE |
| Subwatershed | Cataract Creek Headwaters (HUC 150100040502) |
| SIC | 0921 – Fish Hatcheries And Preserves |
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
- 8Pollutants on file
- 7Under a numeric limit
- 8With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 4 | 87 | 82 | June 30, 2026 | 500% over the limit |
| Solids, total suspended | 4 | 70 | 27 | July 31, 2025 | 320% over the limit |
| pH | 2 | 29 | 10 | December 31, 2017 | |
| Ammonia [as N] + unionized ammonia | 4 | 10 | 2 | September 30, 2006 | 9,352% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 20 | 0 | ||
| Temperature, water deg. centigrade | 2 | 16 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 7 | 0 | ||
| Nitrogen, total [as N] | 2 | 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 AZ0000124.
Inspections
EPA’s inspection file holds no inspection for NPDES AZ0000124.
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 AZ0000124.
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, AZ0000124.
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 AZ0000124 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.