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Clean Water Act discharge permit · NPDES AZ0024937

PIMA COUNTY - WWMD - GREEN VALLEY BNRO - WWTP, Sahuarita, AZ: NPDES AZ0024937 discharge permit, effluent exceedances, inspections, penalties

PIMA COUNTY - WWMD - GREEN VALLEY BNRO - WWTP, held by Pima County - Regional Wastewater Reclamation Department, holds NPDES permit AZ0024937. EPA’s file records it issued February 2, 2021 and expiring February 1, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for PIMA COUNTY - WWMD - GREEN VALLEY BNRO - WWTP: its NPDES ID, its permit type and status, its dates, its address in Sahuarita, Arizona, and 181 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZ0024937.

Identity

Facility as filedPIMA COUNTY - WWMD - GREEN VALLEY BNRO - WWTP
Permittee as filedPima County - Regional Wastewater Reclamation Department
NPDES IDAZ0024937
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedFebruary 2, 2021
Expiration dateFebruary 1, 2026
AddressSahuarita, AZ 85614
SubwatershedKinney Tank-Santa Cruz River (HUC 150503010704)

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

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 181 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, 5-day, 20 deg. C700
Solids, total suspended700
Cyanide, total [as CN]500
Selenium, total recoverable500
Zinc, total recoverable500
Copper, total recoverable500
Chlorine, total residual500
pH400
Temperature, water deg. centigrade300
Oil & Grease300
Nitrogen, ammonia total [as N]300
Sulfide, total [as S]300
Iron, total recoverable300
E. coli, colony forming units [CFU]300
Hydrogen sulfide300
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)300
Static 7Day Chronic Pimephales Promelas300
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia300
TU Static Renewal 7-Day Chronic Pimphales promelas300
Hardness, total [as CaCO3]200
2-Methyl-4,6-dinitrophenol200
Dichlorobromomethane200
Carbon tetrachloride200
1,2-Dichloroethane200
Bromoform200
Dibromochloromethane200
Chloroform200
Toluene200
Benzene200
Acenaphthylene200
Acenaphthene200
Acrolein200
Acrylonitrile200
Anthracene200
Benzo[b]fluoranthene200
Benzo[k]fluoranthene200
Benzo[a]pyrene200
Bis[2-chloroethyl] ether200
Bis[2-chloroethoxy]methane200
Bis[2-chloroisopropyl] ether200
Butyl benzyl phthalate200
Chlorobenzene200
Chrysene200
Diethyl phthalate200
Dimethyl phthalate200
1,2-Diphenylhydrazine200
Ethylbenzene200
Fluoranthene200
Fluorene200
Hexachlorocyclopentadiene200
Hexachlorobutadiene200
Hexachloroethane200
Indeno[1,2,3-cd]pyrene200
Isophorone200
Methyl bromide [Bromomethane]200
Methyl chloride [Chloromethane]200
N-Nitrosodi-N-propylamine200
N-Nitrosodiphenylamine200
N-Nitrosodimethylamine [NDMA]200
Nitrobenzene200

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES AZ0024937.

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 AZ0024937.

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, AZ0024937.

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 AZ0024937 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.