NPDES AZC117478 · Clean Water Act
TRW STEEL WORKS, Phoenix, AZ: NPDES AZC117478 discharge permit, effluent exceedances, inspections, penalties
TRW STEEL WORKS, Phoenix, Arizona: General permit coverage AZC117478, held by Diamond West Construction Llc; Effective; issued August 11, 2026, term to August 28, 2030, by ADEQ; discharges to Roosevelt Canal.
Other permits held by Diamond West Construction Llc
- PARCEL #168-66-007, Paradise Valley: AZC108350, issued 2025-03-31
TRW STEEL WORKS among its neighbors
542 discharge permits are in the City of Phoenix-Salt River subwatershed (HUC 150601060305); AZC117478 is one.
Other permits in the City of Phoenix-Salt River subwatershed (HUC 150601060305)
- 1-B3 BPS REHABILITATION AND REPLACEMENT, Unknown: AZC099991, minor, term to 2025-06-30
- 10TH AND BASELINE MULTIFAMILY, Unknown: AZC116415, minor, term to 2030-08-28
- 115-30-005, Phoenix: AZI116650, minor, term to 2030-01-15
- 1405 W BROADWAY RD AUTO, Phoenix: AZC114777, minor, term to 2030-08-28
- 15TH AVENUE COMMERCIAL PIT, Phoenix: AZI108873, minor, term to 2030-01-15
- 15TH AVENUE COMMERCIAL PIT, Phoenix: AZMS81150, minor, term to 2024-12-30
- 19TH AVENUE HMA PLANT, Phoenix: AZMS67702, minor, term to 2020-12-03
- 20423-05 GRAND CANAL MUT INDIAN SCHOOL TO 16TH ST, Unknown: AZC116185, minor, term to 2030-08-28
- 23RD AVENUE WASTEWATER TREATMENT PLANT, Phoenix: AZMS66154, minor, term to 2016-06-06
- 2600-04 PSHIA T3 N2, Unknown: AZC116232, minor, term to 2030-08-28
Identity
| Facility | TRW STEEL WORKS |
|---|---|
| Permittee | Diamond West Construction Llc |
| NPDES ID | AZC117478 |
| Status | Effective |
| Type | General permit coverage |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | August 11, 2026 |
| Expires | August 28, 2030 |
| Agency | ADEQ |
| Address | Phoenix, AZ 85009 |
| Receiving water | Roosevelt Canal |
| Subwatershed | City of Phoenix-Salt River (HUC 150601060305) |
NPDES AZC117478: effluent limits and exceedances
TRW STEEL WORKS (NPDES AZC117478): 0 pollutants on file, 0 limited; 0 with a violation of any kind, 0 with an exceedance.
NPDES AZC117478: no pollutant row on file.
NPDES AZC117478: inspections, violations and enforcement
NPDES AZC117478 (TRW STEEL WORKS): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES AZC117478
NPDES AZC117478: one email when its EPA record changes — $99/month.
Permits near NPDES AZC117478
NPDES AZC117478: 0 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.