NPDES TX0089125 · Clean Water Act
MONT BELVIEU PLASTICS PLANT, Mont Belvieu, TX: NPDES TX0089125 discharge permit, effluent exceedances, inspections, penalties
MONT BELVIEU PLASTICS PLANT, Mont Belvieu, Texas: Individual permit TX0089125, held by EXXON MOBIL CORPORATION; Administratively continued; issued July 2, 2019, term to July 2, 2024; discharges to CEDAR BAYOU ABOVE TIDAL.
- Flow, in conduit or thru treatment plant: 2 limits, 24 violations of any kind, 8 effluent exceedances, latest September 30, 2017, largest 46% over the limit.
- Whole effluent toxicity: 0 limits, 14 violations of any kind, 6 effluent exceedances, latest March 31, 2018, largest 99,999% over the limit.
- Solids, total suspended: 2 limits, 19 violations of any kind, 3 effluent exceedances, latest April 30, 2021, largest 204% over the limit.
- pH: 2 limits, 18 violations of any kind, 2 effluent exceedances, latest January 31, 2014.
- Oxygen, dissolved [DO]: 1 limit, 10 violations of any kind, 2 effluent exceedances, latest July 31, 2009, largest 38% over the limit.
- Oil & Grease: 2 limits, 17 violations of any kind, 1 effluent exceedance, latest May 31, 2002, largest 8% over the limit.
- Nitrogen, ammonia total [as N]: 2 limits, 17 violations of any kind, 1 effluent exceedance, latest January 31, 2002, largest 1% over the limit.
- Solids, total dissolved: 2 limits, 17 violations of any kind, 1 effluent exceedance, latest February 28, 2003, largest 4% over the limit.
- BOD, 5-day, 20 deg. C: 0 limits, 13 violations of any kind, 1 effluent exceedance, latest July 31, 2000, largest 46% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 2 limits, 5 violations of any kind, 1 effluent exceedance, latest February 28, 2013, largest 174% over the limit.
- Oxygen demand, chem. [high level] [COD]: 2 limits, 18 violations of any kind.
- Sulfate, total [as SO4]: 2 limits, 17 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 13 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 12 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 12 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 12 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 12 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 11 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 11 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 11 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 11 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 0 limits, 11 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 0 limits, 10 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 0 limits, 10 violations of any kind.
- 1,2-Dichloroethane: 2 limits, 4 violations of any kind.
- 1,1-Dichloroethylene: 2 limits, 4 violations of any kind.
- 1,1,1-Trichloroethane: 2 limits, 4 violations of any kind.
- 1,1,2-Trichloroethane: 2 limits, 4 violations of any kind.
- Benzo[a]anthracene: 2 limits, 4 violations of any kind.
- 1,2-Dichlorobenzene: 2 limits, 4 violations of any kind.
- 1,2-Dichloropropane: 2 limits, 4 violations of any kind.
- 1,2,4-Trichlorobenzene: 2 limits, 4 violations of any kind.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 3 violations of any kind.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 3 violations of any kind.
- Carbon tetrachloride: 2 limits, 2 violations of any kind.
- Chloroform: 2 limits, 2 violations of any kind.
- Toluene: 2 limits, 2 violations of any kind.
- Benzene: 2 limits, 2 violations of any kind.
- Acenaphthylene: 2 limits, 2 violations of any kind.
- Acenaphthene: 2 limits, 2 violations of any kind.
- Acrylonitrile: 2 limits, 2 violations of any kind.
- Anthracene: 2 limits, 2 violations of any kind.
- Benzo[b]fluoranthene: 2 limits, 2 violations of any kind.
- Benzo[k]fluoranthene: 2 limits, 2 violations of any kind.
- Benzo[a]pyrene: 2 limits, 2 violations of any kind.
- Chlorobenzene: 2 limits, 2 violations of any kind.
- Chrysene: 2 limits, 2 violations of any kind.
- Diethyl phthalate: 2 limits, 2 violations of any kind.
- Dimethyl phthalate: 2 limits, 2 violations of any kind.
- Ethylbenzene: 2 limits, 2 violations of any kind.
- Fluoranthene: 2 limits, 2 violations of any kind.
- Fluorene: 2 limits, 2 violations of any kind.
- Hexachlorobutadiene: 2 limits, 2 violations of any kind.
- Hexachloroethane: 2 limits, 2 violations of any kind.
- Methyl chloride [Chloromethane]: 2 limits, 2 violations of any kind.
- Methylene chloride: 2 limits, 2 violations of any kind.
- Nitrobenzene: 2 limits, 2 violations of any kind.
- Phenanthrene: 2 limits, 2 violations of any kind.
- Pyrene: 2 limits, 2 violations of any kind.
- Tetrachloroethylene: 2 limits, 2 violations of any kind.
- January 22, 2019: Permit Violations - Violation Specified in Comment (ST6).
Other permits held by EXXON MOBIL CORPORATION
- EXXONMOBIL BAYTOWN OLEFINS PLANT, Baytown: TX0077887, issued 2014-01-22
- EXXONMOBIL NORTH HOUSTON TERMI, Houston: TXG830108, issued 2008-11-19
MONT BELVIEU PLASTICS PLANT among its neighbors
67 discharge permits are in the Ellis Branch-Cedar Bayou subwatershed (HUC 120402030105); TX0089125 is one. Its county: 197, 10 major; TX0089125 is major 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 PLASTICS PLANT |
|---|---|
| Permittee | EXXON MOBIL CORPORATION |
| NPDES ID | TX0089125 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Non-POTW |
| Issued | July 2, 2019 |
| Expires | July 2, 2024 |
| Address | Mont Belvieu, TX 77521 |
| Receiving water | CEDAR BAYOU ABOVE TIDAL |
| Subwatershed | Ellis Branch-Cedar Bayou (HUC 120402030105) |
| SIC | 2821 – Plastics Materials And Resins |
| Other EPA IDs (FRS) | RCRA handler TXT000618090; ICIS-AIR source TX0000004807100016 |
NPDES TX0089125: effluent limits and exceedances
MONT BELVIEU PLASTICS PLANT (NPDES TX0089125): 90 pollutants on file, 75 limited; 79 with a violation of any kind, 10 with an exceedance.
The 60 with the most exceedances of the 90 on file for NPDES TX0089125. How exceedances are counted.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 2 | 24 | 8 | September 30, 2017 | 46% over the limit |
| Whole effluent toxicity | 0 | 14 | 6 | March 31, 2018 | 99,999% over the limit |
| Solids, total suspended | 2 | 19 | 3 | April 30, 2021 | 204% over the limit |
| pH | 2 | 18 | 2 | January 31, 2014 | |
| Oxygen, dissolved [DO] | 1 | 10 | 2 | July 31, 2009 | 38% over the limit |
| Oil & Grease | 2 | 17 | 1 | May 31, 2002 | 8% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 17 | 1 | January 31, 2002 | 1% over the limit |
| Solids, total dissolved | 2 | 17 | 1 | February 28, 2003 | 4% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 13 | 1 | July 31, 2000 | 46% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 2 | 5 | 1 | February 28, 2013 | 174% over the limit |
| Oxygen demand, chem. [high level] [COD] | 2 | 18 | 0 | ||
| Sulfate, total [as SO4] | 2 | 17 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 13 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 12 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 0 | 12 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 12 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 0 | 12 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 11 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 0 | 11 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 11 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 11 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 11 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 10 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 0 | 10 | 0 | ||
| 1,2-Dichloroethane | 2 | 4 | 0 | ||
| 1,1-Dichloroethylene | 2 | 4 | 0 | ||
| 1,1,1-Trichloroethane | 2 | 4 | 0 | ||
| 1,1,2-Trichloroethane | 2 | 4 | 0 | ||
| Benzo[a]anthracene | 2 | 4 | 0 | ||
| 1,2-Dichlorobenzene | 2 | 4 | 0 | ||
| 1,2-Dichloropropane | 2 | 4 | 0 | ||
| 1,2,4-Trichlorobenzene | 2 | 4 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 3 | 0 | ||
| Carbon tetrachloride | 2 | 2 | 0 | ||
| Chloroform | 2 | 2 | 0 | ||
| Toluene | 2 | 2 | 0 | ||
| Benzene | 2 | 2 | 0 | ||
| Acenaphthylene | 2 | 2 | 0 | ||
| Acenaphthene | 2 | 2 | 0 | ||
| Acrylonitrile | 2 | 2 | 0 | ||
| Anthracene | 2 | 2 | 0 | ||
| Benzo[b]fluoranthene | 2 | 2 | 0 | ||
| Benzo[k]fluoranthene | 2 | 2 | 0 | ||
| Benzo[a]pyrene | 2 | 2 | 0 | ||
| Chlorobenzene | 2 | 2 | 0 | ||
| Chrysene | 2 | 2 | 0 | ||
| Diethyl phthalate | 2 | 2 | 0 | ||
| Dimethyl phthalate | 2 | 2 | 0 | ||
| Ethylbenzene | 2 | 2 | 0 | ||
| Fluoranthene | 2 | 2 | 0 | ||
| Fluorene | 2 | 2 | 0 | ||
| Hexachlorobutadiene | 2 | 2 | 0 | ||
| Hexachloroethane | 2 | 2 | 0 | ||
| Methyl chloride [Chloromethane] | 2 | 2 | 0 | ||
| Methylene chloride | 2 | 2 | 0 | ||
| Nitrobenzene | 2 | 2 | 0 | ||
| Phenanthrene | 2 | 2 | 0 | ||
| Pyrene | 2 | 2 | 0 | ||
| Tetrachloroethylene | 2 | 2 | 0 |
NPDES TX0089125: inspections, violations and enforcement
NPDES TX0089125: 1 single-event violation
| Date | What EPA recorded | Agency |
|---|---|---|
| January 22, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
NPDES TX0089125 (MONT BELVIEU PLASTICS PLANT): no inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0089125
NPDES TX0089125: one email when its EPA record changes — $99/month.
Permits near NPDES TX0089125
NPDES TX0089125: 90 pollutant rows, 1 dated events; ICIS-NPDES download, loaded October 14, 2026.