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Sewage treatment plant, major discharger, Ferriday, Louisiana. NPDES permit LA0020630, in force until Sep 30, 2030. Last 12 months: over a limit 7 times (last August 2026), 237 required values missing, 20 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| July 2026 | Oxygen, dissolved [DO], minimum | 5.09 mg/L | ≥ 6 mg/L | 15% |
| August 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 12.27 mg/L | ≤ 10 mg/L | 23% |
| August 2026 | BOD, carbonaceous [5 day, 20 C], weekly average | 16.94 mg/L | ≤ 15 mg/L | 13% |
| August 2026 | Nitrogen, ammonia total [as N], monthly average | 3.48 mg/L | ≤ 2 mg/L | 74% |
| August 2026 | Nitrogen, ammonia total [as N], weekly average | 4.44 mg/L | ≤ 4 mg/L | 11% |
| August 2026 | Oxygen, dissolved [DO], minimum | 5.66 mg/L | ≥ 6 mg/L | 6% |
| August 2026 | Solids, total suspended, weekly average | 44 mg/L | ≤ 23 mg/L | 91% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 23 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 100 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | weekly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | weekly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 4 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 8 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 13 lb/d | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 27 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | weekly average | 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] | weekly average | report only (mg/L) | all year |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year |
| Copper, total [as Cu] | weekly average | report only (lb/d) | 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 #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 #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 |
| 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 |
| 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 #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 #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 |
| 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 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | weekly average | report only (MGD) | all year |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | 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 - 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, 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 |
| 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 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year |
| Coliform, fecal general | weekly geometric mean | ≤ 400 #/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 15 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 67 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year |
| BOD, carbonaceous, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | 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 7 Day Chronic Ceriodaphnia dubia | 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 |
| Pass/Fail Static Renewal 7Day 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 Ceriodaphnia dubia | 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 Pimephales promelas | 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 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | 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 Pimephales promelas | 7-day minimum | report only (%) | all year |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 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 Ceriodaphnia dubia | monthly average minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average 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 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Chlorine, total residual, instantaneous maximum | 0.033 mg/L | new | — | — |
| Copper, total [as Cu], monthly average | 0.12 lb/d | new | — | — |
| Copper, total [as Cu], weekly average | 0.28 lb/d | new | — | — |
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/LA0020630 · MCP: https://passage-data.com/mcp