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Clean Water Act discharge permit · NPDES AZC103703

SILVERLEAF AUTO GARAGES, Scottsdale, AZ: NPDES AZC103703 discharge permit, effluent exceedances, inspections, penalties

SILVERLEAF AUTO GARAGES, held by Alcorn Construction Arizona, Inc., holds NPDES permit AZC103703. EPA’s file records it issued May 9, 2024 and expiring June 30, 2025.

SILVERLEAF AUTO GARAGES, Scottsdale, Arizona: Coverage under a general permit AZC103703, held by Alcorn Construction Arizona, Inc.; Administratively continued (past its expiration date and still in force until reissued); issued May 9, 2024, term to June 30, 2025.

Other permits held by Alcorn Construction Arizona, Inc.

SILVERLEAF AUTO GARAGES among its neighbors

EPA’s permit file holds 148 discharge permits in the Paradise Valley subwatershed (HUC 150601060201), AZC103703 among them.

Other permits in the Paradise Valley subwatershed (HUC 150601060201)

What the register holds for SILVERLEAF AUTO GARAGES: its NPDES ID, its permit type and status, its dates, its address in Scottsdale, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC103703.

Identity

Facility as filedSILVERLEAF AUTO GARAGES
Permittee as filedAlcorn Construction Arizona, Inc.
NPDES IDAZC103703
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 9, 2024
Expiration dateJune 30, 2025
AddressScottsdale, AZ 85255
SubwatershedParadise Valley (HUC 150601060201)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES AZC103703.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC103703.

Inspections

EPA’s inspection file holds no inspection for NPDES AZC103703.

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 AZC103703.

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, AZC103703.

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Nearby on the register

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

What this page shows

The SILVERLEAF AUTO GARAGES coverage in Scottsdale, Arizona, is one of 72 general permit coverages in that city on EPA's NPDES register, and 0.0% of those 72 coverages have a violation on file. The permit sits within the Paradise Valley subwatershed, which holds 148 NPDES permits including this one, and 22.2% of the city's 72 general permit coverages were issued earlier than this one.