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Natural Gas Liquids, Baytown, Texas. NPDES permit TX0140091, in force until Feb 24, 2028. Last 12 months: over a limit 3 times (last August 2026), 28 required values missing, 9 of 71 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| November 2025 | 202 | Oxygen, dissolved [DO], monthly minimum | 4.5 mg/L | ≥ 6 mg/L | 25% |
| June 2026 | 001 | pH, maximum | 9.1 SU | ≤ 9 SU | — |
| August 2026 | 302 | Oxygen, dissolved [DO], monthly minimum | 5.4 mg/L | ≥ 6 mg/L | 10% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 002 |
| Cyanide, free [as free] | daily average | report only (mg/L) | all year | 002 |
| Cyanide, free [as free] | daily maximum | report only (mg/L) | all year | 002 |
| Chloride [as Cl] | daily average | report only (mg/L) | all year | 002 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 002 |
| Sulfate, total [as SO4] | daily average | report only (mg/L) | all year | 002 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 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, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 102 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 20 mg/L | all year | 102 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year | 102 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 89.6 lb/d | all year | 102 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 134 lb/d | all year | 102 |
| Flow, in conduit or thru treatment plant | daily average | ≤ .537 MGD | all year | 102 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 2.07 MGD | all year | 102 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 202 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 18 mg/L | all year | 202 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year | 202 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 113 lb/d | all year | 202 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 189 lb/d | all year | 202 |
| Flow, in conduit or thru treatment plant | daily average | ≤ .755 MGD | all year | 202 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 1.968 MGD | all year | 202 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 302 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 20 mg/L | all year | 302 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year | 302 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 70.9 lb/d | all year | 302 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 106 lb/d | all year | 302 |
| Flow, in conduit or thru treatment plant | daily average | ≤ .425 MGD | all year | 302 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 1.139 MGD | all year | 302 |
| Whole effluent toxicity - retest #1 | 7-day 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 | 7-day 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 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| Whole effluent toxicity - retest #1 | single sample | report only (pass=0;fail=1) | all year | TXB |
| Whole effluent toxicity - retest #2 | single sample | report only (pass=0;fail=1) | all year | TXB |
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | single sample | report only (pass=0;fail=1) | all year | TXB |
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | single sample | report only (pass=0;fail=1) | all year | TXB |
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/TX0140091 · MCP: https://passage-data.com/mcp