Clean Water Act discharge permit · NPDES AZ0024121
PIMA COUNTY - WWMD - AVRA VALLEY WWTF, Tucson, AZ: NPDES AZ0024121 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 182Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
PIMA COUNTY - WWMD - AVRA VALLEY WWTF, held by Pima County - Regional Wastewater Reclamation Department, holds NPDES permit AZ0024121. EPA’s file records it issued July 16, 2019 and expiring July 15, 2024. 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.
Identity
| Facility as filed | PIMA COUNTY - WWMD - AVRA VALLEY WWTF |
|---|---|
| Permittee as filed | Pima County - Regional Wastewater Reclamation Department |
| NPDES ID | AZ0024121 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 16, 2019 |
| Expiration date | July 15, 2024 |
| Address | Tucson, AZ 85735 |
| Subwatershed | Golden Gate Mountain (HUC 150503040503) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 182Pollutants on file
- 182Under a numeric limit
- 132With a violation of any kind
- 0With an effluent exceedance
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 182 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Temperature, water deg. centigrade | 6 | 1 | 0 | ||
| Sulfide, total [as S] | 6 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 1 | 0 | ||
| Fluoride, total [as F] | 2 | 1 | 0 | ||
| Boron, total recoverable | 2 | 1 | 0 | ||
| Barium, total recoverable | 2 | 1 | 0 | ||
| 2-Methyl-4,6-dinitrophenol | 2 | 1 | 0 | ||
| Diquat | 2 | 1 | 0 | ||
| Manganese, total recoverable | 2 | 1 | 0 | ||
| Dinoseb | 2 | 1 | 0 | ||
| Dichlorobromomethane | 2 | 1 | 0 | ||
| Carbon tetrachloride | 2 | 1 | 0 | ||
| 1,2-Dichloroethane | 2 | 1 | 0 | ||
| Bromoform | 2 | 1 | 0 | ||
| Dibromochloromethane | 2 | 1 | 0 | ||
| Chloroform | 2 | 1 | 0 | ||
| Toluene | 2 | 1 | 0 | ||
| Benzene | 2 | 1 | 0 | ||
| .delta.-BHC | 2 | 1 | 0 | ||
| Acenaphthylene | 2 | 1 | 0 | ||
| Acenaphthene | 2 | 1 | 0 | ||
| Acrolein | 2 | 1 | 0 | ||
| Acrylonitrile | 2 | 1 | 0 | ||
| Anthracene | 2 | 1 | 0 | ||
| Benzo[b]fluoranthene | 2 | 1 | 0 | ||
| Benzo[k]fluoranthene | 2 | 1 | 0 | ||
| Benzo[a]pyrene | 2 | 1 | 0 | ||
| Bis[2-chloroethyl] ether | 2 | 1 | 0 | ||
| Bis[2-chloroethoxy]methane | 2 | 1 | 0 | ||
| Bis[2-chloroisopropyl] ether | 2 | 1 | 0 | ||
| Butyl benzyl phthalate | 2 | 1 | 0 | ||
| Chlorobenzene | 2 | 1 | 0 | ||
| Chrysene | 2 | 1 | 0 | ||
| Diethyl phthalate | 2 | 1 | 0 | ||
| Dimethyl phthalate | 2 | 1 | 0 | ||
| 1,2-Diphenylhydrazine | 2 | 1 | 0 | ||
| Endosulfan sulfate | 2 | 1 | 0 | ||
| Endrin aldehyde | 2 | 1 | 0 | ||
| Ethylbenzene | 2 | 1 | 0 | ||
| Fluoranthene | 2 | 1 | 0 | ||
| Fluorene | 2 | 1 | 0 | ||
| Hexachlorocyclopentadiene | 2 | 1 | 0 | ||
| Hexachlorobutadiene | 2 | 1 | 0 | ||
| Hexachloroethane | 2 | 1 | 0 | ||
| Indeno[1,2,3-cd]pyrene | 2 | 1 | 0 | ||
| Isophorone | 2 | 1 | 0 | ||
| Methyl bromide [Bromomethane] | 2 | 1 | 0 | ||
| Methyl chloride [Chloromethane] | 2 | 1 | 0 | ||
| Methylene chloride | 2 | 1 | 0 | ||
| N-Nitrosodi-N-propylamine | 2 | 1 | 0 | ||
| N-Nitrosodiphenylamine | 2 | 1 | 0 | ||
| N-Nitrosodimethylamine [NDMA] | 2 | 1 | 0 | ||
| Nitrobenzene | 2 | 1 | 0 | ||
| Phenanthrene | 2 | 1 | 0 | ||
| Pyrene | 2 | 1 | 0 | ||
| Tetrachloroethylene | 2 | 1 | 0 | ||
| 1,1-Dichloroethane | 2 | 1 | 0 | ||
| 1,1-Dichloroethylene | 2 | 1 | 0 | ||
| 1,1,1-Trichloroethane | 2 | 1 | 0 | ||
| 1,1,2-Trichloroethane | 2 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES AZ0024121.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZ0024121.
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, AZ0024121.
Start the watch
- 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 AZ0024121 there.
Nearby on the register
- Discharge permits in Tucson
- Every permit record in Tucson, A to Z
- Discharge permits in Arizona
- Every permit record in Arizona, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.