Clean Water Act discharge permit · NPDES AZ0024775
SADDLEBROOKE RANCH WATER RECLAMATION PLANT, Tucson, AZ: NPDES AZ0024775 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 39Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
SADDLEBROOKE RANCH WATER RECLAMATION PLANT, held by Mountain Pass Utility Co, holds NPDES permit AZ0024775. EPA’s file records it issued June 20, 2018 and expiring June 19, 2023.
SADDLEBROOKE RANCH WATER RECLAMATION PLANT, Tucson, Arizona: Individual permit AZ0024775, held by Mountain Pass Utility Co; Effective; issued June 20, 2018, term to June 19, 2023.
- BOD, 5-day, 20 deg. C: 7 limits, 31 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 7 limits, 31 violations of any kind, 0 effluent exceedances.
- Chlorine, total residual: 5 limits, 21 violations of any kind, 0 effluent exceedances.
- pH: 4 limits, 12 violations of any kind, 0 effluent exceedances.
- E. coli, colony forming units [CFU]: 3 limits, 10 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 3 limits, 5 violations of any kind, 0 effluent exceedances.
- BOD, 5-day, percent removal: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Solids, suspended percent removal: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. centigrade: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 5 limits, 2 violations of any kind, 0 effluent exceedances.
- Copper, total recoverable: 5 limits, 2 violations of any kind, 0 effluent exceedances.
- Oil & Grease: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Cyanide, total [as CN]: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Selenium, total recoverable: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Silver total recoverable: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Mercury, total recoverable: 3 limits, 2 violations of any kind, 0 effluent exceedances.
- Hydrogen sulfide: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Arsenic, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Iron, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Thallium, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Beryllium, total recoverable [as Be]: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Chromium, hexavalent dissolved [as Cr]: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Antimony, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Sulfide, total [as S]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Nitrite + Nitrate total [as N]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum): 2 limits, 0 violations of any kind, 0 effluent exceedances.
- TU Static Renewal 7-Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- TU Static Renewal 7-Day Chronic Pimphales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Solids, total dissolved: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Static 96Hr Acute Ceriodaphnia Dubia: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas: 1 limit, 0 violations of any kind, 0 effluent exceedances.
SADDLEBROOKE RANCH WATER RECLAMATION PLANT among its neighbors
EPA’s permit file holds 6 discharge permits in the Upper Big Wash subwatershed (HUC 150503010802), AZ0024775 among them. Its county holds 77, 4 of them major permits; AZ0024775 is a minor permit.
Other permits in the Upper Big Wash subwatershed (HUC 150503010802)
- GOLDER RANCH FIRE STATION 378, Unknown: AZC102514, minor permit, permit term to June 30, 2025
- ORACLE SANITARY DISTRICT WWTP, Oracle: AZ0020681, minor permit, permit term to September 12, 2018
- SADDLEBROOKE RANCH PHASE 1, Oracle: AZC110719, minor permit, discharging to Big Wash | Headwaters - CANADA DEL ORO @ 32°2, permit term to August 28, 2030
- SUNZIA TRANSMISSION LINE - ARIZONA, Unknown: AZC099619, minor permit, permit term to June 30, 2025
- SUNZIA TRANSMISSION LINE - ARIZONA, Unknown: AZC109425, minor permit, permit term to June 30, 2025
Identity
| Facility as filed | SADDLEBROOKE RANCH WATER RECLAMATION PLANT |
|---|---|
| Permittee as filed | Mountain Pass Utility Co |
| NPDES ID | AZ0024775 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 20, 2018 |
| Expiration date | June 19, 2023 |
| Address | Tucson, AZ 85739 |
| Subwatershed | Upper Big Wash (HUC 150503010802) |
Effluent limits and exceedances
- 40Pollutants on file
- 39Under a numeric limit
- 33With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 7 | 31 | 0 | ||
| Solids, total suspended | 7 | 31 | 0 | ||
| Chlorine, total residual | 5 | 21 | 0 | ||
| pH | 4 | 12 | 0 | ||
| E. coli, colony forming units [CFU] | 3 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 10 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 5 | 0 | ||
| BOD, 5-day, percent removal | 1 | 5 | 0 | ||
| Solids, suspended percent removal | 1 | 5 | 0 | ||
| Temperature, water deg. centigrade | 3 | 3 | 0 | ||
| Hardness, total [as CaCO3] | 5 | 2 | 0 | ||
| Copper, total recoverable | 5 | 2 | 0 | ||
| Oil & Grease | 3 | 2 | 0 | ||
| Cyanide, total [as CN] | 3 | 2 | 0 | ||
| Selenium, total recoverable | 3 | 2 | 0 | ||
| Silver total recoverable | 3 | 2 | 0 | ||
| Zinc, total recoverable | 3 | 2 | 0 | ||
| Chromium, total recoverable | 3 | 2 | 0 | ||
| Mercury, total recoverable | 3 | 2 | 0 | ||
| Hydrogen sulfide | 2 | 2 | 0 | ||
| Arsenic, total recoverable | 1 | 2 | 0 | ||
| Iron, total recoverable | 1 | 2 | 0 | ||
| Thallium, total recoverable | 1 | 2 | 0 | ||
| Beryllium, total recoverable [as Be] | 1 | 2 | 0 | ||
| Nickel, total recoverable | 1 | 2 | 0 | ||
| Cadmium, total recoverable | 1 | 2 | 0 | ||
| Lead, total recoverable | 1 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 1 | 2 | 0 | ||
| Antimony, total recoverable | 1 | 2 | 0 | ||
| Sulfide, total [as S] | 0 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 1 | 0 | ||
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | 2 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Pimphales promelas | 2 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 | ||
| Solids, total dissolved | 1 | 0 | 0 | ||
| Pass/Fail Static 96Hr Acute Ceriodaphnia Dubia | 1 | 0 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES AZ0024775.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZ0024775.
Inspections
EPA’s inspection file holds no inspection for NPDES AZ0024775.
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 AZ0024775.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.