NPDES TX0005886 · Clean Water Act
MONT BELVIEU FRACTIONATOR, Mont Belvieu, TX: NPDES TX0005886 discharge permit, effluent exceedances, inspections, penalties
MONT BELVIEU FRACTIONATOR, Mont Belvieu, Texas: Individual permit TX0005886, held by ONEOK HYDROCARBON SOUTHWEST LLC; Effective; issued April 20, 2020, term to May 31, 2025; discharges to Cedar Bayou Above Tidal.
3 of the 27 pollutants listed for NPDES TX0005886 have no violation or effluent exceedance.
- Solids, total suspended: 12 limits, 104 violations of any kind, 74 effluent exceedances, latest May 31, 2026, largest 600% over the limit.
- Aluminum, total [as Al]: 4 limits, 88 violations of any kind, 61 effluent exceedances, latest January 31, 2015, largest 312% over the limit.
- Chlorine, total residual: 4 limits, 98 violations of any kind, 22 effluent exceedances, latest April 30, 2025, largest 99,999% over the limit.
- Copper, total [as Cu]: 8 limits, 16 violations of any kind, 16 effluent exceedances, latest May 31, 2020, largest 124% over the limit.
- BOD, 5-day, 20 deg. C: 8 limits, 100 violations of any kind, 7 effluent exceedances, latest December 31, 2015, largest 248% over the limit.
- pH: 8 limits, 127 violations of any kind, 5 effluent exceedances, latest September 30, 2024.
- Flow, in conduit or thru treatment plant: 8 limits, 124 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 44 violations of any kind.
- Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia: 2 limits, 44 violations of any kind.
- Coef Of Var Static Renewal 7Day Chronic Pimephales promelas: 2 limits, 44 violations of any kind.
- Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 42 violations of any kind.
- Pass/Fail Static Renewal 7Day Chronic Pimephales promelas: 2 limits, 42 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 42 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 42 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 42 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 42 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 42 violations of any kind.
- Carbon, tot organic [TOC]: 2 limits, 30 violations of any kind.
- Benzene: 2 limits, 30 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 26 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 26 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 26 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 26 violations of any kind.
- Oil & Grease: 0 limits, 21 violations of any kind.
- Whole effluent toxicity - retest #1: 2 limits.
- Whole effluent toxicity - retest #2: 2 limits.
- BTEX: 2 limits.
MONT BELVIEU FRACTIONATOR among its neighbors
67 discharge permits are in the Ellis Branch-Cedar Bayou subwatershed (HUC 120402030105); TX0005886 is one. Its county: 197, 10 major; TX0005886 is minor permit.
Other permits in the Ellis Branch-Cedar Bayou subwatershed (HUC 120402030105)
- ARCANUM BAYTOWN SITE, Baytown: TX0003832, minor, term to 2023-10-04
- ARCANUM BAYTOWN SITE, Baytown: TXR05GX94, minor, term to 2026-08-13
- ARCANUM BAYTOWN SITE, Baytown: TXR05HB19, minor, term to 2026-08-13
- ARCANUM BAYTOWN SITE, Baytown: TXR05HC83, minor, term to 2031-08-13
- ARCANUM PROJECT ROBIN, Baytown: TXR1547NZ, minor, term to 2028-03-04
- BAY CREEK, Baytown: TXR1524YP, minor, term to 2028-03-04
- BAY CREEK, Baytown: TXR1586RH, minor, term to 2028-03-04
- BAY CREEK SEC ONE - DETENTION CLEARING GRUBBING GRADING, Baytown: TXR1548MV, minor, term to 2028-03-04
- BAY CREEK SECTION 1, Baytown: TXR1550OL, minor, term to 2028-03-04
- BAYTOWN COMMERCE CENTER - BUILDING 1, Baytown: TXR1557JI, minor, term to 2023-03-04
Identity
| Facility | MONT BELVIEU FRACTIONATOR |
|---|---|
| Permittee | ONEOK HYDROCARBON SOUTHWEST LLC |
| NPDES ID | TX0005886 |
| Status | Effective |
| Type | Individual permit |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | April 20, 2020 |
| Expires | May 31, 2025 |
| Address | Mont Belvieu, TX 77580 |
| Receiving water | Cedar Bayou Above Tidal |
| Subwatershed | Ellis Branch-Cedar Bayou (HUC 120402030105) |
| SIC | 1321 – Natural Gas Liquids |
| Other EPA IDs (FRS) | RCRA handler TXD054458773; ICIS-AIR source TX0000004807100004 |
NPDES TX0005886: effluent limits and exceedances
MONT BELVIEU FRACTIONATOR (NPDES TX0005886): 27 pollutants on file, 26 limited; 24 with a violation of any kind, 6 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 12 | 104 | 74 | May 31, 2026 | 600% over the limit |
| Aluminum, total [as Al] | 4 | 88 | 61 | January 31, 2015 | 312% over the limit |
| Chlorine, total residual | 4 | 98 | 22 | April 30, 2025 | 99,999% over the limit |
| Copper, total [as Cu] | 8 | 16 | 16 | May 31, 2020 | 124% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 100 | 7 | December 31, 2015 | 248% over the limit |
| pH | 8 | 127 | 5 | September 30, 2024 | |
| Flow, in conduit or thru treatment plant | 8 | 124 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 44 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 2 | 44 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 2 | 44 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 42 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 2 | 42 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 42 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 42 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 42 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 42 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 42 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 30 | 0 | ||
| Benzene | 2 | 30 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 26 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 26 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 26 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 26 | 0 | ||
| Oil & Grease | 0 | 21 | 0 | ||
| Whole effluent toxicity - retest #1 | 2 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 2 | 0 | 0 | ||
| BTEX | 2 | 0 | 0 |
NPDES TX0005886: inspections, violations and enforcement
NPDES TX0005886 (MONT BELVIEU FRACTIONATOR): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0005886
NPDES TX0005886: one email when its EPA record changes — $99/month.
Permits near NPDES TX0005886
NPDES TX0005886: 27 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.