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Sewage treatment plant, major discharger, Many, Louisiana. NPDES permit LA0070904, in force until Aug 31, 2029. Last 12 months: over a limit 5 times (last January 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Nitrogen, ammonia total [as N], monthly average | 5.9 mg/L | ≤ 4.9 mg/L | 20% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 5 mg/L | ≤ 4.9 mg/L | 2% |
| December 2025 | Solids, total suspended, monthly average | 34 mg/L | ≤ 27 mg/L | 26% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 5.1 mg/L | ≤ 4.9 mg/L | 4% |
| January 2026 | Solids, total suspended, monthly average | 36 mg/L | ≤ 27 mg/L | 33% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 001 |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| WET, sublethal retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Whole Effluent Toxicity - Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity - Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | maximum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | maximum | report only (%) | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 37 mg/L | all year | 101 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 140 mg/L | all year | 101 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 101 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | monthly average | ≤ 27 mg/L | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 88 mg/L | all year | 101 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 101 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 101 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 101 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.9 mg/L | all year | 101 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | all year | 101 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 101 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 101 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 101 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 101 |
| Zinc, total [as Zn] | monthly average | ≤ .11 mg/L | all year | 101 |
| Zinc, total [as Zn] | daily maximum | ≤ .2 mg/L | all year | 101 |
| Phenolics, total recoverable | monthly average | report only (mg/L) | all year | 101 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 101 |
| Acenaphthylene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Acenaphthene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Benzo[b]fluoranthene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Benzo[k]fluoranthene | daily maximum | ≤ .005 mg/L | all year | 101 |
| Benzo[a]pyrene | daily maximum | ≤ .005 mg/L | all year | 101 |
| Chrysene | daily maximum | ≤ .005 mg/L | all year | 101 |
| Fluoranthene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Fluorene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Indeno[1,2,3-cd]pyrene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Phenanthrene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Pyrene | daily maximum | ≤ .01 mg/L | all year | 101 |
| Benzo[ghi]perylene | daily maximum | ≤ .02 mg/L | all year | 101 |
| Benzo[a]anthracene | daily maximum | ≤ .005 mg/L | all year | 101 |
| Dibenz[a,h]anthracene | daily maximum | ≤ .005 mg/L | all year | 101 |
| Phenol | monthly average | ≤ .015 mg/L | all year | 101 |
| Phenol | daily maximum | ≤ .026 mg/L | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| .alpha.-Terpineol | monthly average | ≤ .016 mg/L | all year | 101 |
| .alpha.-Terpineol | daily maximum | ≤ .033 mg/L | all year | 101 |
| Priority pollutants scan [yes/no] | minimum | ≥ 1 N=0;Y=1 | all year | 101 |
| Mercury, total [as Hg] | daily maximum | ≤ .0001 mg/L | all year | 101 |
| p-Cresol | monthly average | ≤ .014 mg/L | all year | 101 |
| p-Cresol | daily maximum | ≤ .025 mg/L | all year | 101 |
| Benzoic acids, total | monthly average | ≤ .071 mg/L | all year | 101 |
| Benzoic acids, total | daily maximum | ≤ .12 mg/L | all year | 101 |
| 2-Methylnaphthalene | daily maximum | ≤ .02 mg/L | all year | 101 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Phenolics, total recoverable, monthly average | 0.005 mg/L | new | 0.007 mg/L (3 values) | 1.4× |
| Mercury, total [as Hg], daily maximum | 0.00006 mg/L | tighter | 0 mg/L (3 values) | 0× |
| Phenolics, total recoverable, daily maximum | 0.013 mg/L | new | 0.007 mg/L (3 values) | 0.538× |
| Zinc, total [as Zn], monthly average | 0.097 mg/L | tighter | 0.018 mg/L (3 values) | 0.186× |
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/LA0070904 · MCP: https://passage-data.com/mcp