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Crude Petroleum And Natural Gas, Houston, Texas. NPDES permit TX0134063 expired Sep 27, 2023; its limits still apply. Last 12 months: over a limit 4 times (last January 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Oxygen, dissolved [DO], mean | 7.62 mg/L | ≤ 5 mg/L | 52% |
| November 2025 | Oxygen, dissolved [DO], mean | 7.81 mg/L | ≤ 5 mg/L | 56% |
| December 2025 | Oxygen, dissolved [DO], mean | 7.73 mg/L | ≤ 5 mg/L | 55% |
| January 2026 | Oxygen, dissolved [DO], mean | 8.02 mg/L | ≤ 5 mg/L | 60% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 3 mg/L | Jan, Feb, Jul, Aug, Sep, Oct, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 4.5 mg/L | Mar–Jun | 001 |
| Oxygen, dissolved [DO] | mean | ≤ 5 mg/L | Jan, Feb, Jul, Aug, Sep, Oct, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | mean | ≤ 5.5 mg/L | Mar–Jun | 001 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 100 mg/L | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | monthly average | report only (lb/d) | all year | 001 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 001 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 001 |
| Chloride [as Cl] | monthly average | report only (lb/d) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (lb/d) | all year | 001 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | monthly average | report only (lb/d) | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | report only (lb/d) | all year | 001 |
| Aluminum, total [as Al] | monthly average | ≤ .835 mg/L | all year | 001 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.766 mg/L | all year | 001 |
| Radium 226, total | daily maximum | report only (pCi/L) | all year | 001 |
| Radium 228, total | daily maximum | report only (pCi/L) | all year | 001 |
| Radium 226 + radium 228, total | daily maximum | report only (pCi/L) | all year | 001 |
| Benzene, ethylbenzene, toluene, xylene combination | daily maximum | report only (mg/L) | all year | 001 |
| Benzene | daily maximum | report only (mg/L) | 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 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved | monthly average | report only (lb/d) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (lb/d) | all year | 001 |
| Alpha gross radioactivity | daily maximum | report only (pCi/L) | all year | 001 |
| Hydrocarbons, total petroleum | daily maximum | report only (mg/L) | all year | 001 |
| Whole effluent toxicity - retest #1 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | value | report only (pass=0;fail=1) | all year | TX1 |
| Whole Effluent Toxicity - Retest #3 | value | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | value | report only (pass=0;fail=1) | all year | TX1 |
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | value | report only (pass=0;fail=1) | all year | TX1 |
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | value | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | value | report only (pass=0;fail=1) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | value | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | value | report only (%) | all year | TX1 |
Cited limits by parameter: Texas's rules and the federal ones.
Same industry: the 30 Oil and Gas Extraction 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/TX0134063 · MCP: https://passage-data.com/mcp