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Clean Water Act discharge permit · NPDES AZC104274

PARCEL #175-20-018, Scottsdale, AZ: NPDES AZC104274 discharge permit, effluent exceedances, inspections, penalties

PARCEL #175-20-018, held by Patterson Homes Llc, holds NPDES permit AZC104274. EPA’s file records it issued June 27, 2024 and expiring June 30, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for PARCEL #175-20-018: 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 AZC104274.

Identity

Facility as filedPARCEL #175-20-018
Permittee as filedPatterson Homes Llc
NPDES IDAZC104274
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
IssuedJune 27, 2024
Expiration dateJune 30, 2025
AddressScottsdale, AZ 85254
SubwatershedUpper Indian Bend Wash (HUC 150601060202)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES AZC104274.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC104274.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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, AZC104274.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID AZC104274 there.

Nearby on the register

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