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Petroleum Refining, Princeton, Louisiana. NPDES permit LA0088552, in force until Sep 30, 2029. Last 12 months: over a limit 6 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 002 | Carbon, tot organic [TOC], daily maximum | 189 mg/L | ≤ 50 mg/L | 278% |
| October 2025 | 002 | Oil & Grease, daily maximum | 26.6 mg/L | ≤ 15 mg/L | 77% |
| March 2026 | 003 | Solids, total suspended, daily maximum | 87 mg/L | ≤ 45 mg/L | 93% |
| March 2026 | 105 | Solids, total suspended, daily maximum | 46 mg/L | ≤ 45 mg/L | 2% |
| June 2026 | 105 | Oil & Grease, daily maximum | 33 mg/L | ≤ 15 mg/L | 120% |
| June 2026 | 105 | Solids, total suspended, daily maximum | 98 mg/L | ≤ 45 mg/L | 118% |
| 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 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (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 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | 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 |
| 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 |
| pH | instantaneous minimum | report only (SU) | all year | 102 |
| pH | instantaneous maximum | report only (SU) | all year | 102 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 102 |
| Arsenic, total [as As] | daily maximum | ≤ 137 ug/L | all year | 102 |
| Cadmium, total [as Cd] | daily maximum | ≤ 275 ug/L | all year | 102 |
| Chromium, total [as Cr] | daily maximum | ≤ 343 ug/L | all year | 102 |
| Copper, total [as Cu] | daily maximum | ≤ 824 ug/L | all year | 102 |
| Lead, total [as Pb] | daily maximum | ≤ 275 ug/L | all year | 102 |
| Nickel, dissolved [as Ni] | daily maximum | ≤ 549 ug/L | all year | 102 |
| Zinc, total [as Zn] | daily maximum | ≤ 686 mg/L | all year | 102 |
| Carbon tetrachloride | daily maximum | ≤ 38 ug/L | all year | 102 |
| 1,2-Dichloroethane | daily maximum | ≤ 211 ug/L | all year | 102 |
| Chloroform | daily maximum | ≤ 46 ug/L | all year | 102 |
| Toluene | daily maximum | ≤ 80 ug/L | all year | 102 |
| Benzene | daily maximum | ≤ 136 ug/L | all year | 102 |
| Acrylonitrile | daily maximum | ≤ 242 ug/L | all year | 102 |
| Chlorobenzene | daily maximum | ≤ 28 ug/L | all year | 102 |
| Ethylbenzene | daily maximum | ≤ 108 ug/L | all year | 102 |
| Methyl chloride [Chloromethane] | daily maximum | ≤ 190 ug/L | all year | 102 |
| Methylene chloride | daily maximum | ≤ 89 ug/L | all year | 102 |
| Tetrachloroethylene | daily maximum | ≤ 56 ug/L | all year | 102 |
| 1,1-Dichloroethane | daily maximum | ≤ 59 ug/L | all year | 102 |
| 1,1-Dichloroethylene | daily maximum | ≤ 25 ug/L | all year | 102 |
| 1,1,1-Trichloroethane | daily maximum | ≤ 54 ug/L | all year | 102 |
| 1,1,2-Trichloroethane | daily maximum | ≤ 54 ug/L | all year | 102 |
| 1,2-Dichlorobenzene | daily maximum | ≤ 163 ug/L | all year | 102 |
| 1,2-Dichloropropane | daily maximum | ≤ 230 ug/L | all year | 102 |
| trans-1,2-Dichloroethylene | daily maximum | ≤ 54 ug/L | all year | 102 |
| 1,3-Dichlorobenzene | daily maximum | ≤ 44 ug/L | all year | 102 |
| 1,4-Dichlorobenzene | daily maximum | ≤ 28 ug/L | all year | 102 |
| Vinyl chloride | daily maximum | ≤ 268 ug/L | all year | 102 |
| Trichloroethylene | daily maximum | ≤ 54 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 |
| 1,3-Dichloropropylene | daily maximum | ≤ 44 ug/L | all year | 102 |
| Mercury, total [as Hg] | daily maximum | ≤ 93 ug/L | all year | 102 |
| Xylene [mix of m+o+p] | daily maximum | ≤ 100 ug/L | all year | 102 |
| Chloroethane | daily maximum | ≤ 268 ug/L | all year | 102 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 105 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 105 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 105 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 105 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 105 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 105 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 105 |
| pH | instantaneous minimum | report only (SU) | all year | 202 |
| pH | instantaneous maximum | report only (SU) | all year | 202 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 202 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 202 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 202 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 302 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 302 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 302 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 302 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 302 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 302 |
| Lead, total [as Pb] | daily maximum | ≤ 50 ug/L | all year | 302 |
| Benzene | daily maximum | ≤ 50 ug/L | all year | 302 |
| BTEX | daily maximum | ≤ 250 ug/L | all year | 302 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 302 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 302 |
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/LA0088552 · MCP: https://passage-data.com/mcp