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Sewage treatment plant, major discharger, Las Vegas, New Mexico. NPDES permit NM0028827, in force until Nov 30, 2027. Last 12 months: over a limit 8 times (last August 2026), 11 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Oxygen, dissolved [DO], monthly minimum | 4.04 mg/L | ≥ 6 mg/L | 33% |
| January 2026 | Oxygen, dissolved [DO], monthly minimum | 5.59 mg/L | ≥ 6 mg/L | 7% |
| March 2026 | Oxygen, dissolved [DO], monthly minimum | 5.7 mg/L | ≥ 6 mg/L | 5% |
| June 2026 | Oxygen, dissolved [DO], monthly minimum | 5.4 mg/L | ≥ 6 mg/L | 10% |
| June 2026 | pH, maximum | 9.9 SU | ≤ 9 SU | — |
| June 2026 | pH, minimum | 5.5 SU | ≥ 6.6 SU | — |
| July 2026 | Oxygen, dissolved [DO], monthly minimum | 5.7 mg/L | ≥ 6 mg/L | 5% |
| August 2026 | Oxygen, dissolved [DO], monthly minimum | 5.08 mg/L | ≥ 6 mg/L | 15% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 20 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 26 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 417 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 542 lb/d | all year | 001 |
| pH | minimum | ≥ 6.6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 626 lb/d | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 939 lb/d | all year | 001 |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | 30-day average | report only (lb/d) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 83 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 125 lb/d | all year | 001 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | 30-day average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 001 |
| Cadmium, total [as Cd] | 30-day average | ≤ .491 ug/L | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | ≤ .736 ug/L | all year | 001 |
| Cadmium, total [as Cd] | 30-day average | ≤ .0102 lb/d | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | ≤ .0153 lb/d | all year | 001 |
| Aluminum, total recoverable | 30-day average | ≤ 66.37 ug/L | all year | 001 |
| Aluminum, total recoverable | daily maximum | ≤ 99.55 ug/L | all year | 001 |
| Aluminum, total recoverable | 30-day average | ≤ 1.38 lb/d | all year | 001 |
| Aluminum, total recoverable | daily maximum | ≤ 2.076 lb/d | all year | 001 |
| Di[2-ethylhexyl] phthalate [DEHP] | 30-day average | ≤ 23.22 ug/L | all year | 001 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ 34.83 ug/L | all year | 001 |
| Di[2-ethylhexyl] phthalate [DEHP] | 30-day average | ≤ .484 lb/d | all year | 001 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ .726 lb/d | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | 7-day average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | instantaneous maximum | < 11 ug/L | all year | 001 |
| E. coli | 30-day geometric mean | ≤ 126 CFU/100mL | all year | 001 |
| E. coli | daily maximum | ≤ 410 CFU/100mL | all year | 001 |
| Mercury, total [as Hg] | 30-day average | ≤ .77 ug/L | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ .891 ug/L | all year | 001 |
| Mercury, total [as Hg] | 30-day average | ≤ .016 lb/d | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ .0186 lb/d | all year | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Whole effluent toxicity - retest #1 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | value | report only (pass=0;fail=1) | all year | TX1 |
| WET, sublethal retest #1 | value | report only (pass=0;fail=1) | all year | TX1 |
| WET, sublethal retest #2 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole Effluent Toxicity - Retest #3 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | value | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | value | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | value | report only (pass=0;fail=1) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
Cited limits by parameter: New Mexico's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/NM0028827 · MCP: https://passage-data.com/mcp