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Petroleum Refining, major discharger, Corpus Christi, Texas. NPDES permit TX0006599, in force until Dec 20, 2026. Last 12 months: no values over a limit, 1 of 84 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily average | ≤ 100 deg F | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 105 deg F | all year | 001 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 292 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 584 lb/d | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | daily average | ≤ 2189 lb/d | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 4379 lb/d | all year | 001 |
| pH | minimum | ≥ 5 SU | all year | 001 |
| pH | maximum | ≤ 11 SU | all year | 001 |
| Solids, total suspended | daily average | ≤ 292 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 584 lb/d | all year | 001 |
| Oil & Grease | daily average | ≤ 114 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 214 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 146 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 248 lb/d | all year | 001 |
| Sulfide, total [as S] | daily average | ≤ 1.9 lb/d | all year | 001 |
| Sulfide, total [as S] | daily maximum | ≤ 4.4 lb/d | all year | 001 |
| Chromium, hexavalent [as Cr] | daily average | ≤ .243 lb/d | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .513 lb/d | all year | 001 |
| Chromium, total [as Cr] | daily average | ≤ 2.7 lb/d | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 6.7 lb/d | all year | 001 |
| Flow, in conduit or thru treatment plant | daily average | ≤ 2.16 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 3.6 MGD | all year | 001 |
| Phenolic compounds, total | daily average | ≤ 1.1 lb/d | all year | 001 |
| Phenolic compounds, total | daily maximum | ≤ 2.7 lb/d | 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 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 150 mg/L | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 150 mg/L | all year | 004 |
| pH | minimum | ≥ 6 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 150 mg/L | all year | 006 |
| pH | minimum | ≥ 6 SU | all year | 006 |
| pH | maximum | ≤ 9 SU | all year | 006 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 150 mg/L | all year | 007 |
| pH | minimum | ≥ 6 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 150 mg/L | all year | 009 |
| pH | minimum | ≥ 6 SU | all year | 009 |
| pH | maximum | ≤ 9 SU | all year | 009 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 009 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 150 mg/L | all year | 011 |
| pH | minimum | ≥ 6 SU | all year | 011 |
| pH | maximum | ≤ 9 SU | all year | 011 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 011 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 011 |
| Whole effluent toxicity - retest #1 | 48-hour minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #2 | 48-hour minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia) | 48-hour minimum | report only (pass=0;fail=1) | all year | TX2 |
| LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia) | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia menidia | 48-hour minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia menidia | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia) | 48-hour minimum | report only (%) | all year | TX2 |
| NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX2 |
| NOAEC Lethal Static Renewal 48HR Acute Menidia menidia | 48-hour minimum | report only (%) | all year | TX2 |
| NOAEC Lethal Static Renewal 48HR Acute Menidia menidia | monthly average minimum | report only (%) | all year | TX2 |
| LOAEC Lethal Survival Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 48-hour minimum | report only (%) | all year | TX2 |
| LOAEC Lethal Survival Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX2 |
| LOAEC Survival Static Renewal 48HR Acute Menidia menidia | 48-hour minimum | report only (%) | all year | TX2 |
| LOAEC Survival Static Renewal 48HR Acute Menidia menidia | monthly average minimum | report only (%) | all year | TX2 |
| Whole effluent toxicity - retest #1 | single sample | report only (pass=0;fail=1) | all year | TXA |
| Whole effluent toxicity - retest #2 | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | single sample | report only (pass=0;fail=1) | all year | TXA |
Cited limits by parameter: Texas's rules and the federal ones.
Same industry: the 32 Petroleum Refining and Related Industries permits in Texas.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/TX0006599 · MCP: https://passage-data.com/mcp