NPDES AZC112972 · Clean Water Act
SIENNA HILLS PARCELS 4N/6N, 5N & 7BN, AZ: NPDES AZC112972 discharge permit, effluent exceedances, inspections, penalties
SIENNA HILLS PARCELS 4N/6N, 5N & 7BN, Arizona: General permit coverage AZC112972, held by William Ryan Homes Arizona Inc.; Effective; issued August 29, 2025, term to August 28, 2030, by ADEQ; discharges to Unnamed ephemeral tributary.
Other permits held by William Ryan Homes Arizona Inc.
- EL CIDRO PARCEL 1A: AZC099274, issued 2023-06-20
- SIENNA HILLS PARCELS 4N/6N, 5N & 7BN: AZC099275, issued 2023-06-20
- WESTPARK PARCEL 7N: AZC107404, issued 2025-02-07
- VERRADO VICTORY DISTRICT-PHASE 9: AZC107955, issued 2025-03-11
- VERRADO VICTORY DISTRICT-PHASE 9: AZC111995, issued 2025-08-29
- WESTPARK PARCEL 7N, Buckeye: AZC112973, issued 2025-08-29
- EL CIDRO PARCEL 1A: AZC112989, issued 2025-08-29
- HARMONY @ ESTRELLA: AZCN92130, issued 2021-11-29
- ARROYO NORTE: AZCN94035, issued 2022-04-14
- ALAMAR PHASE 4: AZCN95617, issued 2022-08-05
SIENNA HILLS PARCELS 4N/6N, 5N & 7BN among its neighbors
149 discharge permits are in the Lum Wash-Gila River subwatershed (HUC 150701010203); AZC112972 is one.
Other permits in the Lum Wash-Gila River subwatershed (HUC 150701010203)
- 1ST STREET AT SKYLINE, Unknown: AZC104070, minor, term to 2025-06-30
- 1ST STREET AT SKYLINE, Unknown: AZC112253, minor, term to 2030-08-28
- 22439-04 ROOSEVELT ST. JACKRABBIT, Unknown: AZC104992, minor, term to 2025-06-30
- AGUA FRIA PLANT 16, Buckeye: AZC112165, minor, term to 2030-08-28
- ALDI 168 BUCKEYE, Buckeye: AZC114375, minor, term to 2030-08-28
- ALDI 168 BUCKEYE, Buckeye: AZC114433, minor, term to 2030-08-28
- AMBER MEADOWS 1, Unknown: AZC113238, minor, term to 2030-08-28
- AMBER MEADOWS PHASE 2A, 2B, 2C, Unknown: AZC116934, minor, term to 2030-08-28
- AMBER MEADOWS TRACT GG & II, Unknown: AZC117458, minor, term to 2030-08-28
- AMERICAN LEADERSHIP ACADEMY - BUCKEYE CAMPUS, Unknown: AZC116028, minor, term to 2030-08-28
Identity
| Facility | SIENNA HILLS PARCELS 4N/6N, 5N & 7BN |
|---|---|
| Permittee | William Ryan Homes Arizona Inc. |
| NPDES ID | AZC112972 |
| Status | Effective |
| Type | General permit coverage |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | August 29, 2025 |
| Expires | August 28, 2030 |
| Agency | ADEQ |
| Address | AZ 85713 |
| Receiving water | Unnamed ephemeral tributary |
| Subwatershed | Lum Wash-Gila River (HUC 150701010203) |
NPDES AZC112972: effluent limits and exceedances
SIENNA HILLS PARCELS 4N/6N, 5N & 7BN (NPDES AZC112972): 0 pollutants on file, 0 limited; 0 with a violation of any kind, 0 with an exceedance.
NPDES AZC112972: no pollutant row on file.
NPDES AZC112972: inspections, violations and enforcement
NPDES AZC112972 (SIENNA HILLS PARCELS 4N/6N, 5N & 7BN): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES AZC112972
NPDES AZC112972: one email when its EPA record changes — $99/month.
Permits near NPDES AZC112972
NPDES AZC112972: 0 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.