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Petroleum Refining, major discharger, Chalmette, Louisiana. NPDES permit LA0004260, in force until Feb 28, 2031. Last 12 months: over a limit 2 times (last June 2026), 22 of 159 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| November 2025 | 110 | Solids, total suspended, daily maximum | 10216.46 lb/d | ≤ 3670 lb/d | 178% |
| June 2026 | 001 | Carbon, tot organic [TOC], daily maximum | 7.67 mg/L | ≤ 5 mg/L | 53% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 5 mg/L | 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 | 48-hour minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole effluent toxicity - retest #1 | 48-hour 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 | 48-hour 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 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | 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 | 48-hour minimum | report only (pass=0;fail=1) | all year | 001 |
| Whole Effluent Toxicity - Retest #3 | 48-hour 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 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 48-hour minimum | report only (pass=0;fail=1) | all year | 001 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 48-hour minimum | report only (pass=0;fail=1) | all year | 001 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | monthly average minimum | report only (%) | all year | 001 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 48-hour minimum | report only (%) | all year | 001 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | monthly average minimum | report only (%) | all year | 001 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 48-hour minimum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 48Hr Acute D. pulex | maximum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | maximum | report only (%) | all year | 001 |
| pH | minimum | report only (SU) | all year | 003 |
| pH | maximum | report only (SU) | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 5 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 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 003 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 003 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | monthly average | report only (lb/d) | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (lb/d) | all year | 004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 004 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 004 |
| Oil & Grease | monthly average | report only (lb/d) | all year | 004 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 004 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 004 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 004 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | 004 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 004 |
| Sulfite [as SO3] | monthly average | report only (lb/d) | all year | 004 |
| Sulfite [as SO3] | daily maximum | report only (lb/d) | all year | 004 |
| Chromium, hexavalent [as Cr] | monthly average | report only (lb/d) | all year | 004 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (lb/d) | all year | 004 |
| Chromium, total [as Cr] | monthly average | report only (lb/d) | all year | 004 |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 004 |
| Phenolics, total recoverable | monthly average | report only (lb/d) | all year | 004 |
| Phenolics, total recoverable | daily maximum | report only (lb/d) | 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 |
| pH | minimum | report only (SU) | all year | 010 |
| pH | maximum | report only (SU) | all year | 010 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 010 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 010 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 010 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 010 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole effluent toxicity - retest #1 | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole effluent toxicity - retest #1 | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole effluent toxicity - retest #2 | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole effluent toxicity - retest #2 | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 010 |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole Effluent Toxicity - Retest #3 | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| Whole Effluent Toxicity - Retest #3 | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 010 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 010 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | 010 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 48-hour minimum | report only (pass=0;fail=1) | all year | 010 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | monthly average minimum | report only (%) | all year | 010 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 48-hour minimum | report only (%) | all year | 010 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | monthly average minimum | report only (%) | all year | 010 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 48-hour minimum | report only (%) | all year | 010 |
| Coef Of Var Static Renewal 48Hr Acute D. pulex | maximum | report only (%) | all year | 010 |
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | maximum | report only (%) | all year | 010 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 011 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 011 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 011 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 011 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 011 |
| pH | minimum | report only (SU) | all year | 012 |
| pH | maximum | report only (SU) | all year | 012 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 5 mg/L | all year | 012 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 012 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 012 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 012 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 012 |
| pH | minimum | report only (SU) | all year | 013 |
| pH | maximum | report only (SU) | all year | 013 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 5 mg/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 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 013 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 013 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 013 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 015 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 015 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 015 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 015 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 015 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 015 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 016 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 016 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 016 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 016 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 016 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 016 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 017 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 017 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 017 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 017 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 017 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 017 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 018 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 018 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 018 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 018 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 018 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 018 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 019 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 019 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 019 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 019 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 019 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 019 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 020 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 020 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 020 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 020 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 020 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 020 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 101 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 101 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 101 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 101 |
| Lead, total [as Pb] | daily maximum | ≤ 50 ug/L | all year | 101 |
| Benzene | daily maximum | ≤ 50 ug/L | all year | 101 |
| BTEX | daily maximum | ≤ 250 ug/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 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 102 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 102 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 102 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 102 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 102 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 102 |
| Lead, total [as Pb] | daily maximum | ≤ 50 ug/L | all year | 102 |
| Benzene | daily maximum | ≤ 50 ug/L | all year | 102 |
| BTEX | daily maximum | ≤ 250 ug/L | all year | 102 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 102 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 2978 lb/d | all year | 110 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 5364 lb/d | all year | 110 |
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 20763 lb/d | all year | 110 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 40104 lb/d | all year | 110 |
| Solids, total suspended | monthly average | ≤ 2386 lb/d | all year | 110 |
| Solids, total suspended | daily maximum | ≤ 3740 lb/d | all year | 110 |
| Oil & Grease | monthly average | ≤ 869 lb/d | all year | 110 |
| Oil & Grease | daily maximum | ≤ 1633 lb/d | all year | 110 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1522 lb/d | all year | 110 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3349 lb/d | all year | 110 |
| Sulfide, total [as S] | monthly average | ≤ 14.7 lb/d | all year | 110 |
| Sulfide, total [as S] | daily maximum | ≤ 33 lb/d | all year | 110 |
| Chromium, hexavalent [as Cr] | monthly average | ≤ 2.2 lb/d | all year | 110 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ 5 lb/d | all year | 110 |
| Chromium, total [as Cr] | monthly average | ≤ 26.1 lb/d | all year | 110 |
| Chromium, total [as Cr] | daily maximum | ≤ 75.1 lb/d | all year | 110 |
| Phenolics, total recoverable | monthly average | ≤ 19.5 lb/d | all year | 110 |
| Phenolics, total recoverable | daily maximum | ≤ 40 lb/d | all year | 110 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 110 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 110 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 210 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 210 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 210 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 210 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | IT01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | IT01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | IT02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | IT02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | IT03 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | IT03 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | IT04 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | IT04 |
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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