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Sewerage Systems, major discharger, Fort Polk, Louisiana. NPDES permit LA0032221 expired Mar 31, 2026; its limits still apply. Last 12 months: over a limit 4 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Solids, total dissolved, monthly average | 280 mg/L | ≤ 196 mg/L | 43% |
| March 2026 | Solids, total dissolved, monthly average | 286.25 mg/L | ≤ 196 mg/L | 46% |
| June 2026 | Solids, total dissolved, monthly average | 270 mg/L | ≤ 196 mg/L | 38% |
| September 2026 | Solids, total dissolved, monthly average | 280 mg/L | ≤ 196 mg/L | 43% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 15 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 384 lb/d | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 23 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 575 lb/d | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Copper, total [as Cu] | monthly average | report only (mg/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | monthly average | ≤ .44 lb/d | all year |
| Copper, total [as Cu] | daily maximum | ≤ 1.04 lb/d | all year |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year |
| WET, sublethal retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | daily maximum | ≤ .033 mg/L | all year |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole Effluent Toxicity - Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Whole Effluent Toxicity - Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year |
| Solids, total dissolved | monthly average | ≤ 196 mg/L | all year |
| Solids, total dissolved | daily maximum | ≤ 467 mg/L | all year |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year |
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | maximum | report only (%) | all year |
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | maximum | report only (%) | all year |
Cited limits by parameter: Louisiana'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/LA0032221 · MCP: https://passage-data.com/mcp