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Sewerage Systems, major discharger, Aztec, New Mexico. NPDES permit NM0020168, in force until Jul 31, 2031. Last 12 months: over a limit 20 times (last September 2026), 2 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Nitrogen, total [as N], 30-day average | 34.15 lb/d | ≤ 25.3 lb/d | 35% |
| October 2025 | Nitrogen, total [as N], 30-day average | 7.9 mg/L | ≤ 3.04 mg/L | 160% |
| October 2025 | Phosphorus, total [as P], 30-day average | 22.06 lb/d | ≤ 9.32 lb/d | 137% |
| October 2025 | Phosphorus, total [as P], 30-day average | 5.08 mg/L | ≤ 1.12 mg/L | 354% |
| November 2025 | Nitrogen, total [as N], 30-day average | 6.53 mg/L | ≤ 3.04 mg/L | 115% |
| November 2025 | Phosphorus, total [as P], 30-day average | 2.48 mg/L | ≤ 1.12 mg/L | 121% |
| December 2025 | Nitrogen, total [as N], 30-day average | 6.05 mg/L | ≤ 3.04 mg/L | 99% |
| December 2025 | Phosphorus, total [as P], 30-day average | 2.18 mg/L | ≤ 1.12 mg/L | 95% |
| December 2025 | Solids, suspended percent removal, monthly average minimum | .78 % | ≥ 85 % | 561% |
| December 2025 | Solids, total dissolved, daily maximum | 690 mg/L | ≤ 400 mg/L | 73% |
| December 2025 | Solids, total suspended, 30-day average | 39.2 mg/L | ≤ 30 mg/L | 31% |
| December 2025 | Solids, total suspended, 7-day average | 180 mg/L | ≤ 45 mg/L | 300% |
| December 2025 | Solids, total suspended, 7-day average | 722.1 lb/d | ≤ 450 lb/d | 60% |
| March 2026 | Solids, suspended percent removal, monthly average minimum | 79 % | ≥ 85 % | 40% |
| June 2026 | Phosphorus, total [as P], 30-day average | 12.09 lb/d | ≤ 9.32 lb/d | 30% |
| June 2026 | Phosphorus, total [as P], 30-day average | 3.03 mg/L | ≤ 1.12 mg/L | 171% |
| June 2026 | Solids, total dissolved, daily maximum | 410 mg/L | ≤ 400 mg/L | 3% |
| July 2026 | Phosphorus, total [as P], 30-day average | 1.41 mg/L | ≤ 1.12 mg/L | 26% |
| August 2026 | Phosphorus, total [as P], 30-day average | 1.73 mg/L | ≤ 1.12 mg/L | 54% |
| September 2026 | Phosphorus, total [as P], 30-day average | 1.65 mg/L | ≤ 1.12 mg/L | 47% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 300 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 450 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 | ≤ 300 lb/d | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 450 lb/d | all year | 001 |
| Nitrogen, total [as N] | 30-day average | ≤ 3.04 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 | ≤ 25.3 lb/d | all year | 001 |
| Phosphorus, total [as P] | 30-day average | ≤ 1.12 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 | ≤ 9.32 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 |
| 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 |
| E. coli | 30-day geometric mean | ≤ 4800 MCFU/d | all year | 001 |
| Solids, total dissolved | daily maximum | ≤ 400 mg/L | 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 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | value | report only (pass=0;fail=1) | all year | TX1 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | value | report only (pass=0;fail=1) | all year | TX1 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | value | report only (%) | all year | TX1 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | value | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 48Hr Acute D. pulex | value | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | value | report only (%) | all year | TX1 |
Cited limits by parameter: New Mexico's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/NM0020168 · MCP: https://passage-data.com/mcp