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Petroleum Refining, major discharger, Krotz Springs, Louisiana. NPDES permit LA0051942 expired Oct 31, 2026. Last 12 months: over a limit 10 times (last May 2026), 3 of 64 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| January 2026 | 003 | pH, instantaneous maximum | 9.07 SU | ≤ 9 SU | — |
| January 2026 | 005 | pH, instantaneous maximum | 9.3 SU | ≤ 9 SU | — |
| February 2026 | 004 | Oxygen demand, chem. [high level] [COD], daily maximum | 5128.5 lb/d | ≤ 5090 lb/d | 1% |
| March 2026 | 005 | Carbon, tot organic [TOC], daily maximum | 77.6 mg/L | ≤ 50 mg/L | 55% |
| April 2026 | 004 | BOD, 5-day, 20 deg. C, daily maximum | 2857.06 lb/d | ≤ 711 lb/d | 302% |
| April 2026 | 004 | BOD, 5-day, 20 deg. C, monthly average | 655.15 lb/d | ≤ 380 lb/d | 72% |
| April 2026 | 004 | Oxygen demand, chem. [high level] [COD], daily maximum | 5795.75 lb/d | ≤ 5090 lb/d | 14% |
| April 2026 | 004 | Solids, total suspended, daily maximum | 701.48 lb/d | ≤ 491 lb/d | 43% |
| May 2026 | 004 | BOD, 5-day, 20 deg. C, daily maximum | 1997 lb/d | ≤ 711 lb/d | 181% |
| May 2026 | 004 | BOD, 5-day, 20 deg. C, monthly average | 441 lb/d | ≤ 380 lb/d | 16% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| 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 |
| Mercury, total [as Hg] | monthly average | report only (mg/L) | all year | 003 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 380 lb/d | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 711 lb/d | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 2576 lb/d | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 5090 lb/d | all year | 004 |
| pH | minimum | report only (SU) | all year | 004 |
| pH | maximum | report only (SU) | all year | 004 |
| Solids, total suspended | monthly average | ≤ 307 lb/d | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 491 lb/d | all year | 004 |
| Oil & Grease | monthly average | ≤ 114 lb/d | all year | 004 |
| Oil & Grease | daily maximum | ≤ 209 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 | ≤ 367 lb/d | all year | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 808 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 |
| Sulfide, total [as S] | monthly average | ≤ 2.08 lb/d | all year | 004 |
| Sulfide, total [as S] | daily maximum | ≤ 4.53 lb/d | all year | 004 |
| Chromium, hexavalent [as Cr] | monthly average | ≤ .39 lb/d | all year | 004 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .88 lb/d | all year | 004 |
| Chromium, total [as Cr] | monthly average | ≤ 6.01 lb/d | all year | 004 |
| Chromium, total [as Cr] | daily maximum | ≤ 10.3 lb/d | all year | 004 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole effluent toxicity - retest #1 | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole effluent toxicity - retest #1 | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole effluent toxicity - retest #2 | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole effluent toxicity - retest #2 | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| Phenolics, total recoverable | monthly average | ≤ 2.45 lb/d | all year | 004 |
| Phenolics, total recoverable | daily maximum | ≤ 5.15 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 |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole Effluent Toxicity - Retest #3 | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole Effluent Toxicity - Retest #3 | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| Whole Effluent Toxicity - Retest #3 | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| Coliform, fecal general | monthly average | ≤ 200 #/100mL | all year | 004 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 004 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 004 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 004 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | 004 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 48-hour minimum | report only (pass=0;fail=1) | all year | 004 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | monthly average minimum | report only (%) | all year | 004 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 48-hour minimum | report only (%) | all year | 004 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | monthly average minimum | report only (%) | all year | 004 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 48-hour minimum | report only (%) | all year | 004 |
| Coef Of Var Static Renewal 48Hr Acute D. pulex | maximum | report only (%) | all year | 004 |
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | maximum | report only (%) | all year | 004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 005 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 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 |
| Mercury, total [as Hg] | monthly average | report only (mg/L) | all year | 005 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 007A |
| pH | instantaneous maximum | ≤ 9 SU | all year | 007A |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 007A |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 007A |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007A |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 007A |
| Lead, total [as Pb] | daily maximum | ≤ 50 ug/L | all year | 007A |
| Benzene | daily maximum | ≤ 50 ug/L | all year | 007A |
| BTEX | daily maximum | ≤ 250 ug/L | all year | 007A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007A |
| pH | instantaneous minimum | ≥ 6 SU | all year | 007B |
| pH | instantaneous maximum | ≤ 9 SU | all year | 007B |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 007B |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 007B |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007B |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 007B |
| Lead, total [as Pb] | daily maximum | ≤ 50 ug/L | all year | 007B |
| Benzene | daily maximum | ≤ 50 ug/L | all year | 007B |
| BTEX | daily maximum | ≤ 250 ug/L | all year | 007B |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007B |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007B |
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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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/LA0051942 · MCP: https://passage-data.com/mcp