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Petroleum Refining, major discharger, Lake Charles, Louisiana. NPDES permit LA0052370 expired May 31, 2024; its limits still apply. Last 12 months: no values over a limit, 1 of 60 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 499 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 938 lb/d | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 2508 lb/d | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 4853 lb/d | all year | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 422 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 657 lb/d | all year | 001 |
| Oil & Grease | monthly average | ≤ 153 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 293 lb/d | all year | 001 |
| Nitrogen, total [as N] | monthly 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] | monthly average | ≤ 52 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 52 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 115 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 115 lb/d | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 001 |
| Sulfide, total [as S] | monthly average | ≤ 2.79 lb/d | all year | 001 |
| Sulfide, total [as S] | monthly average | ≤ 2.79 lb/d | all year | 001 |
| Sulfide, total [as S] | daily maximum | ≤ 6.16 lb/d | all year | 001 |
| Sulfide, total [as S] | daily maximum | ≤ 6.16 lb/d | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | ≤ .0888 lb/d | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | ≤ .0888 lb/d | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .2069 lb/d | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .2069 lb/d | all year | 001 |
| Chromium, total [as Cr] | monthly average | ≤ 1.1578 lb/d | all year | 001 |
| Chromium, total [as Cr] | monthly average | ≤ 1.1578 lb/d | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 3.185 lb/d | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 3.185 lb/d | 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 #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 #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 |
| 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 |
| 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 #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 #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 |
| 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 |
| Phenolics, total recoverable | monthly average | ≤ .8694 lb/d | all year | 001 |
| Phenolics, total recoverable | monthly average | ≤ .8694 lb/d | all year | 001 |
| Phenolics, total recoverable | daily maximum | ≤ 3.7009 lb/d | all year | 001 |
| Phenolics, total recoverable | daily maximum | ≤ 3.7009 lb/d | all year | 001 |
| Benzo[a]pyrene | monthly average | ≤ .0908 lb/d | all year | 001 |
| Benzo[a]anthracene | monthly average | ≤ .0908 lb/d | 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 | 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 - 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, 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 |
| 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 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 001 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 7Day Chronic Menidia | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Pass/Fail Static Renewal 7Day Chronic Menidia | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (pass=0;fail=1) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | maximum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 7Day Chronic Menidia menidia | maximum | report only (%) | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | 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 | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | 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 | ≤ 30 mg/L | all year | 005 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 005 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 006 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 006 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 007 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 007 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 009 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 009 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 009 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 009 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 009 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 009 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 013 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 013 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 013 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 013 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 013 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 013 |
| Lead, total [as Pb] | daily maximum | ≤ 50 ug/L | all year | 013 |
| Benzene | daily maximum | ≤ 50 ug/L | all year | 013 |
| BTEX | daily maximum | ≤ 250 ug/L | all year | 013 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 013 |
Cited limits by parameter: Louisiana's rules and the federal ones.
Same industry: the 26 Petroleum Refining and Related Industries permits in Louisiana.
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Your permit document is the final word. As JSON: /api/v1/permits/LA0052370 · MCP: https://passage-data.com/mcp