Clean Water Act discharge permit · NPDES AZC107458

AMARILLO CREEK PHASE 2A, AZ: NPDES AZC107458 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

AMARILLO CREEK PHASE 2A, held by Ashton Woods Arizona, Llc - Awphx, holds NPDES permit AZC107458. EPA’s file records it issued February 11, 2025 and expiring June 30, 2025.

AMARILLO CREEK PHASE 2A, Arizona: Coverage under a general permit AZC107458, held by Ashton Woods Arizona, Llc - Awphx; Administratively continued (past its expiration date and still in force until reissued); issued February 11, 2025, term to June 30, 2025.

Other permits held by Ashton Woods Arizona, Llc - Awphx

STONEBRIDGE MANOR: AZC099549, issued July 13, 2023
NORTH COPPER CANYON 2.2: AZC104281, issued June 28, 2024
NORTH COPPER CANYON 4.2: AZC104287, issued July 1, 2024
THREE RIVERS RANCH: AZC108164, issued March 20, 2025
VISARA: AZC110483, issued August 12, 2025
LA PRIVADA: AZC110955, issued September 8, 2025
ESTRELLA CROSSING PHASE 3: AZC112336, issued August 29, 2025
MADERA: AZC112337, issued August 29, 2025
NORTH COPPER CANYON 2.2: AZC112338, issued August 29, 2025
NORTH COPPER CANYON 4.2: AZC112339, issued August 29, 2025

AMARILLO CREEK PHASE 2A among its neighbors

EPA’s permit file holds 23 discharge permits in the Antelope Wash subwatershed (HUC 150503030503), AZC107458 among them.

Other permits in the Antelope Wash subwatershed (HUC 150503030503)

AK-CHIN ADMINISTRATIVE BUILDING, Maricopa: AZR10I1GJ, minor permit, permit term to February 16, 2027
AK-CHIN WELLNESS CENTER, Maricopa: AZR10I1FL, minor permit, permit term to February 16, 2027
AMARILLO CREEK, Unknown: AZC112349, minor permit, discharging to Unnamed ephemeral tributary, permit term to August 28, 2030
AMARILLO CREEK, Unknown: AZC112536, minor permit, discharging to Vekol Wash | Papago Reservation Boundary Point, permit term to August 28, 2030
AMARILLO CREEK PHASE 2A, Unknown: AZC112350, minor permit, discharging to Vekol Wash | Papago Reservation Boundary Point, permit term to August 28, 2030
AMARILLO CREEK UNIT 2B, Unknown: AZC113964, minor permit, permit term to August 28, 2030
MARICOPA WATERLINE, Unknown: AZC101090, minor permit, permit term to June 30, 2025
PALOMINO RANCH - PARCEL 4, Unknown: AZC106537, minor permit, permit term to June 30, 2025
PALOMINO RANCH - PARCEL 4, Unknown: AZC112557, minor permit, discharging to Vekol Wash, permit term to August 28, 2030
PALOMINO RANCH - PARCEL 4, Unknown: AZC112690, minor permit, discharging to Vekol Wash, permit term to August 28, 2030

What the register holds for AMARILLO CREEK PHASE 2A: its NPDES ID, its permit type and status, its dates, its address, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC107458.

Identity

Facility as filed	AMARILLO CREEK PHASE 2A
Permittee as filed	Ashton Woods Arizona, Llc - Awphx
NPDES ID	AZC107458
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	February 11, 2025
Expiration date	June 30, 2025
Address	AZ 85233
Subwatershed	Antelope Wash (HUC 150503030503)

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 AZC107458.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC107458.

Inspections

EPA’s inspection file holds no inspection for NPDES AZC107458.

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 AZC107458.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

The register page covers NPDES permit AZC107458 for AMARILLO CREEK PHASE 2A, held by Ashton Woods Arizona, Llc - Awphx, with a permit status of administratively continued and a discharger class of Minor. It lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it notes that EPA's violation files hold no violation for this permit. The subwatershed is Antelope Wash (HUC 150503030503), and the permit's issued and expiration dates are February 11, 2025 and June 30, 2025.