Clean Water Act discharge permit · NPDES AZSM91586
TOWN OF MARANA MS4, Marana, AZ: NPDES AZSM91586 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 2Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
TOWN OF MARANA MS4, held by Town Of Marana, holds NPDES permit AZSM91586, which discharges to Santa Cruz River. EPA’s file records it issued November 19, 2021 and expiring September 29, 2026. 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.
Identity
| Facility as filed | TOWN OF MARANA MS4 |
|---|---|
| Permittee as filed | Town Of Marana |
| NPDES ID | AZSM91586 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 19, 2021 |
| Expiration date | September 29, 2026 |
| Issuing agency | ADEQ |
| Address | Marana, AZ 85653 |
| Receiving water | Santa Cruz River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower Canada del Oro (HUC 150503010807) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 2Pollutants on file
- 2Under a numeric limit
- 2With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 22 | 1 | 0 | ||
| E. coli, colony forming units [CFU] | 22 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES AZSM91586.
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 AZSM91586.
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
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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 AZSM91586 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.