Clean Water Act discharge permit · NPDES AZC117189
WESTPARK, AZ: NPDES AZC117189 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
WESTPARK, held by Knochel Bros., Inc., holds NPDES permit AZC117189, which discharges to Roosevelt Canal. EPA’s file records it issued July 22, 2026 and expiring August 28, 2030.
WESTPARK, Arizona: Coverage under a general permit AZC117189, held by Knochel Bros., Inc.; Effective; issued July 22, 2026, term to August 28, 2030, by ADEQ; discharges to Roosevelt Canal.
WESTPARK among its neighbors
EPA’s permit file holds 9 discharge permits in the Roberts Well-Hassayampa River subwatershed (HUC 150701030507), AZC117189 among them.
Other permits in the Roberts Well-Hassayampa River subwatershed (HUC 150701030507)
- AGAVE RANCH DEVELOPMENT, Unknown: AZCN96857, minor permit, permit term to June 30, 2025
- BURLINGTON DISTRIBUTION CENTER, Unknown: AZC115308, minor permit, discharging to Roosevelt Canal, permit term to August 28, 2030
- CALPORTLAND BUCKEYE RMC PLANT, Buckeye: AZI109010, minor permit, discharging to Hassayampa River | Jackrabbit Wash - BUCKEYE C, permit term to January 15, 2030
- CALPORTLAND BUCKEYE RMC PLANT, Buckeye: AZMS81348, minor permit, permit term to December 30, 2024
- HASSAYAMPA RANCH WRF, Tonopah: AZ0025453, major permit, permit term to December 23, 2023
- PALO VERDE ROAD WWTP, Buckeye: AZ0025500, minor permit, permit term to June 23, 2018
- PREMIER MATERIALS GROUP - BUCKEYE 80, Unknown: AZI108624, minor permit, discharging to Hassayampa River | Jackrabbit Wash - BUCKEYE C, permit term to January 15, 2030
- WESTPARK WATER MAIN, Unknown: AZD117068, minor permit, discharging to Roosevelt Canal-VERDE ROAD - HASSAYAMPA RIVER, permit term to May 31, 2031
What the register holds for WESTPARK: its NPDES ID, its permit type and status, its dates, its address, Arizona, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC117189.
Identity
| Facility as filed | WESTPARK |
|---|---|
| Permittee as filed | Knochel Bros., Inc. |
| NPDES ID | AZC117189 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 22, 2026 |
| Expiration date | August 28, 2030 |
| Issuing agency | ADEQ |
| Address | AZ 85718 |
| Receiving water | Roosevelt Canal |
| Subwatershed | Roberts Well-Hassayampa River (HUC 150701030507) |
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 AZC117189.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC117189.
Inspections
EPA’s inspection file holds no inspection for NPDES AZC117189.
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 AZC117189.
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, AZC117189.
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- One watershed — $2,990/year
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Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.