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Non-Compliance TRI Reporter Clean Air Act Clean Water Act RCRA

CHEVRON PHILLIPS CHEMICAL SWEENY OLD OCEAN FACILITIES

Quick Summary

  • Released 567,986 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
  • Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
  • Assessed $473,515 in total penalties since records began.
  • Reports releases of chemicals classified as known or probable carcinogens.
Address
21441 FREEDOM LN
SWEENY, TX 77480
View on map ↗
County
BRAZORIA County
Industry
Manufacturing
NAICS (North American Industry Classification)
325110
Inspections
4 · last Jun 27, 2024
Total Penalties
$473,515 · last Dec 20, 2022
Registry ID
110056970568

How This Compares

#64 of 1,879 TRI reporters in TX
#340 of 16,877 TRI reporters in Manufacturing

Ranked by most recent year's total TRI releases.

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

2
Air (CAA)
Qtrs Non-Compliant
5
Water (CWA)
Qtrs Non-Compliant
2
Hazardous Waste (RCRA)
Qtrs Non-Compliant

TRI Toxic Chemical Releases

Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.

Emissions Trend (2015–2024) -24% overall
Year Total Releases (lbs) vs Prior Year
2015 522,278
2016 401,547 -23%
2017 567,986 +41%
2018 598,144 +5%
2019 270,643 -55%
2020 475,127 +76%
2021 708,824 +49%
2022 464,074 -35%
2023 424,030 -9%
2024 399,242 -6%

2024

Chemical Total (lbs) Air Water Land Off-Site
Polycyclic aromatic compounds 164 ♦ Carcinogen
Dimethyl phthalate
Isoprene 3,989 ♦ Carcinogen
1,2,4-Trimethylbenzene
Certain glycol ethers
Ethylene 236,575 236,575 3,262
Propylene 108,838 108,838 6,954
Hydrogen sulfide 12,273 12,273
Benzene 11,362 11,362 104,545 ♦ Carcinogen
Ammonia 7,108 7,108
n-Hexane 6,541 6,541 4,777
1,3-Butadiene 6,369 6,369 9,545 ♦ Carcinogen
Xylene (mixed isomers) 2,759 2,759 2,470
Toluene 2,004 2,004 21,485
Methanol 1,825 1,825 12
Naphthalene 1,124 1,124 18,253 ♦ Carcinogen
Ethylbenzene 1,035 1,035 13,606 ♦ Carcinogen
Styrene 902 902 17,080 ♦ Carcinogen
Dicyclopentadiene 350 350
Ethylene glycol 127 127 6,108
Cyclohexane 50 50 12

2023

Chemical Total (lbs) Air Water Land Off-Site
Certain glycol ethers
Isoprene 6,652 ♦ Carcinogen
Dimethyl phthalate
Ethylene 238,102 238,102 5,439
Propylene 103,485 103,485 11,596
Hydrogen sulfide 46,562 46,562
n-Hexane 6,901 6,901 5,348
Benzene 6,886 6,886 174,895 ♦ Carcinogen
Ammonia 6,638 6,638
1,3-Butadiene 5,853 5,853 15,916 ♦ Carcinogen
Xylene (mixed isomers) 2,735 2,735 2,486
Methanol 1,795 1,795
Toluene 1,601 1,601 34,264
Naphthalene 1,084 1,084 33,736 ♦ Carcinogen
Styrene 935 935 28,657 ♦ Carcinogen
Ethylbenzene 887 887 4,787 ♦ Carcinogen
Dicyclopentadiene 370 370
Ethylene glycol 138 138
Cyclohexane 35 35 60
1,2,4-Trimethylbenzene 21 21 1,967
Polycyclic aromatic compounds 2 2 321 ♦ Carcinogen

2022

Chemical Total (lbs) Air Water Land Off-Site
Isoprene 4,517 ♦ Carcinogen
Dimethyl phthalate
Certain glycol ethers
Ethylene 274,670 274,670 3,693
Propylene 108,399 108,399 7,873
Hydrogen sulfide 52,778 52,778
n-Hexane 8,133 8,133 4
Benzene 6,804 6,804 118,566 ♦ Carcinogen
1,3-Butadiene 4,649 4,649 10,807 ♦ Carcinogen
Methanol 1,798 1,798
Toluene 1,385 1,385 23,219
Naphthalene 1,046 1,046 21,214 ♦ Carcinogen
Xylene (mixed isomers) 961 961 1,561
Zinc compounds 936 936
Ammonia 896 896
Styrene 887 887 19,430 ♦ Carcinogen
Ethylbenzene 389 389 1,313 ♦ Carcinogen
Dicyclopentadiene 291 291
Cyclohexane 29 29 35
1,2,4-Trimethylbenzene 21 21
Polycyclic aromatic compounds 2 2 ♦ Carcinogen

2021

Chemical Total (lbs) Air Water Land Off-Site
Certain glycol ethers
Isoprene 5,537 ♦ Carcinogen
Ethylene 514,612 514,612 4,527
Propylene 142,742 142,742 9,652
Benzene 15,687 15,687 145,416 ♦ Carcinogen
1,3-Butadiene 14,919 14,919 13,248 ♦ Carcinogen
n-Hexane 8,443 8,443 4
Ammonia 4,152 4,152
Methanol 2,097 2,097
Xylene (mixed isomers) 1,668 1,668 1,929
Toluene 1,360 1,360 28,519
Naphthalene 1,177 1,177 26,263 ♦ Carcinogen
Styrene 1,011 1,011 23,877 ♦ Carcinogen
Ethylbenzene 529 529 1,636 ♦ Carcinogen
Dicyclopentadiene 327 327
Hydrogen sulfide 42 42
Cyclohexane 34 34 41
1,2,4-Trimethylbenzene 21 21
Polycyclic aromatic compounds 3 3 437 ♦ Carcinogen

2020

Chemical Total (lbs) Air Water Land Off-Site
Isoprene 6,902 ♦ Carcinogen
Certain glycol ethers
Ethylene 313,632 313,632 5,643
Propylene 105,569 105,569 12,031
n-Hexane 17,624 17,624 5
Benzene 9,268 9,268 180,912 ♦ Carcinogen
Ammonia 9,120 9,120
1,3-Butadiene 8,239 8,239 16,514 ♦ Carcinogen
Xylene (mixed isomers) 2,640 2,640 2,410
Methanol 2,238 2,238
Toluene 1,693 1,693 35,349
Zinc compounds 1,580 1,580
Naphthalene 1,129 1,129 31,802 ♦ Carcinogen
Styrene 1,047 1,047 29,577 ♦ Carcinogen
Ethylbenzene 775 775 2,113 ♦ Carcinogen
Dicyclopentadiene 391 391
1,2,4-Trimethylbenzene 97 97
Hydrogen sulfide 44 44
Cyclohexane 39 39 15
Polycyclic aromatic compounds 2 2 140 ♦ Carcinogen

2019

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds 11,564
Isoprene 4,717 ♦ Carcinogen
Lead compounds
p-Phenylenediamine
Ethylene 182,697 182,697 3,856
Propylene 64,403 64,403 8,221
n-Hexane 11,593 11,593 7
Ammonia 5,068 5,068
Methanol 1,843 1,843
Toluene 1,357 1,357 24,164
Xylene (mixed isomers) 1,008 1,008 1,619
Styrene 853 853 20,228 ♦ Carcinogen
Naphthalene 814 814 21,591 ♦ Carcinogen
Zinc compounds 490 490 11,564
Dicyclopentadiene 396 396
Hydrogen sulfide 44 44
1,2,4-Trimethylbenzene 40 40
Cyclohexane 37 37 3

2018

Chemical Total (lbs) Air Water Land Off-Site
Ethylene 412,638 412,638 5,830
Propylene 118,126 118,126 12,429
Benzene 16,100 16,100 187,088 ♦ Carcinogen
n-Hexane 16,053 16,053 20
1,3-Butadiene 7,241 7,241 17,061 ♦ Carcinogen
Isoprene 7,219 7,219 7,131 ♦ Carcinogen
Ammonia 6,033 6,033
Methanol 2,879 2,879
Xylene (mixed isomers) 2,795 2,795 2,445
Toluene 2,469 2,469 36,564
Diethanolamine 1,850 1,850
Naphthalene 1,600 1,600 32,569 ♦ Carcinogen
Styrene 1,341 1,341 30,564 ♦ Carcinogen
Ethylbenzene 821 821 2,038 ♦ Carcinogen
Dicyclopentadiene 639 639
1,2,4-Trimethylbenzene 205 205
Hydrogen sulfide 87 87
Cyclohexane 48 48 30

2017

Chemical Total (lbs) Air Water Land Off-Site
Ethylene 378,778 378,778 7,235
Propylene 135,977 135,977 15,426
Benzene 13,795 13,795 232,046 ♦ Carcinogen
1,3-Butadiene 8,248 8,248 21,174 ♦ Carcinogen
Ammonia 6,317 6,317
Xylene (mixed isomers) 6,049 6,049 3,076
Isoprene 4,086 4,086 8,850 ♦ Carcinogen
Toluene 2,977 2,977 45,453
Methanol 2,733 2,733
Diethanolamine 1,956 1,956
Naphthalene 1,669 1,669 41,546 ♦ Carcinogen
Ethylbenzene 1,635 1,635 2,554 ♦ Carcinogen
Styrene 1,471 1,471 38,106 ♦ Carcinogen
n-Hexane 1,069 1,069
Dicyclopentadiene 915 915
1,2,4-Trimethylbenzene 217 217
Cyclohexane 50 50
Hydrogen sulfide 44 44

2016

Chemical Total (lbs) Air Water Land Off-Site
Ethylene 231,281 231,281 6,320
Propylene 115,910 115,910 13,475
Benzene 15,220 15,220 202,662 ♦ Carcinogen
1,3-Butadiene 6,754 6,754 18,496 ♦ Carcinogen
Xylene (mixed isomers) 5,033 5,033 2,680
Ammonia 4,998 4,998
Isoprene 4,694 4,694 7,730 ♦ Carcinogen
Diethanolamine 3,585 3,585
Toluene 3,454 3,454 39,644
Methanol 3,124 3,124
Naphthalene 1,705 1,705 35,376 ♦ Carcinogen
Styrene 1,655 1,655 33,300 ♦ Carcinogen
Dicyclopentadiene 1,442 1,442
Ethylbenzene 1,375 1,375 2,224 ♦ Carcinogen
n-Hexane 891 891
1,2,4-Trimethylbenzene 327 327
Cyclohexane 55 55
Hydrogen sulfide 44 44

2015

Chemical Total (lbs) Air Water Land Off-Site
Copper compounds
Ethylene 345,736 345,736 6,595
Propylene 119,646 119,646 14,060
Benzene 17,503 17,503 211,952 ♦ Carcinogen
1,3-Butadiene 7,550 7,550 19,299 ♦ Carcinogen
Isoprene 5,268 5,268 8,066 ♦ Carcinogen
Diethanolamine 4,492 4,492
Xylene (mixed isomers) 4,396 4,396 7,653
Toluene 2,946 2,946 41,842
Methanol 2,905 2,905
Ammonia 2,820 2,820
Chlorine 1,823 1,823
Naphthalene 1,804 1,804 37,166 ♦ Carcinogen
Styrene 1,711 1,711 35,087 ♦ Carcinogen
Dicyclopentadiene 1,270 1,270
Ethylbenzene 1,231 1,231 22,090 ♦ Carcinogen
n-Hexane 891 891
1,2,4-Trimethylbenzene 179 179
Cyclohexane 63 63
Hydrogen sulfide 44 44

Waste Management & Recycling

How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.

Chemical Released Recycled Energy Recovery Treated
Benzene 326,848
Isoprene 3,989
Styrene 17,065
1,3-Butadiene 173,264
Polycyclic aromatic compounds 12 34
Toluene 20,400
Propylene 2,469,567
Xylene (mixed isomers) 1,413
Ethylene 2,803,396
Naphthalene 18,125
n-Hexane 8,146
Hydrogen sulfide 947 601,367
Ethylbenzene 2,572 4,762

Off-Site Transfer Destinations

Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.

Destination Chemical Disposal Recycling Energy Rec. Treatment
US ECOLOGY TEXAS
ROBSTOWN, TX
Polycyclic aromatic compounds 13
GFL PLANT SERVICES OLD GALVESTON ROAD
HOUSTON, TX
Polycyclic aromatic compounds 12
WASTE MANAGEMENT OF TEXAS INC - COASTAL PLAINS RECYCLING & D
ALVIN, TX
Polycyclic aromatic compounds 105
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
1,3-Butadiene 9,545
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Propylene 6,954
SET ENVIRONMENTAL
HOUSTON, TX
Xylene (mixed isomers) 1,054
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Xylene (mixed isomers) 1,355
US ECOLOGY TEXAS
ROBSTOWN, TX
Xylene (mixed isomers) 3
US ECOLOGY TEXAS
ROBSTOWN, TX
Cyclohexane 12
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Ethylene 3,262
SET ENVIRONMENTAL
HOUSTON, TX
Ethylene glycol 6,096
US ECOLOGY TEXAS
ROBSTOWN, TX
Ethylene glycol 12
US ECOLOGY TEXAS
ROBSTOWN, TX
Ethylbenzene 1
SET ENVIRONMENTAL
HOUSTON, TX
Ethylbenzene 308
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Ethylbenzene 1,131
VLS HOUSTON
HOCKLEY, TX
Ethylbenzene 5,847
SYSTECH ENVIRONMENTAL CORPORATION
FREDONIA, KS
Ethylbenzene 2,572
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Isoprene 3,989
US ECOLOGY TEXAS
ROBSTOWN, TX
Methanol 12
SET ENVIRONMENTAL
HOUSTON, TX
n-Hexane 4,765
US ECOLOGY TEXAS
ROBSTOWN, TX
n-Hexane 12
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Benzene 104,491
US ECOLOGY TEXAS
ROBSTOWN, TX
Benzene 10
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Naphthalene 17,989
US ECOLOGY TEXAS
ROBSTOWN, TX
Naphthalene 136
SET ENVIRONMENTAL
HOUSTON, TX
Toluene 1,057
US ECOLOGY TEXAS
ROBSTOWN, TX
Toluene 11
WASTE MANAGEMENT OF TEXAS INC - COASTAL PLAINS RECYCLING & D
ALVIN, TX
Toluene 5
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Toluene 20,387
US ECOLOGY TEXAS
ROBSTOWN, TX
Styrene 15
PHILLIPS 66 SWEENY REFINERY
OLD OCEAN, TX
Styrene 17,057

Compliance Violations

Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.

Program Type Violation Date Return to Compliance Status
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa Linked to Viol. Below Open
caa FRV Aug 28, 2025 Open
caa FRV Aug 6, 2025 Open
caa FRV Dec 11, 2024 Open
cwa Permit Violations - Violation Specified in Comment Jun 6, 2023 Jun 16, 2023 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Jan 26, 2022 Aug 28, 2023 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Jan 26, 2022 Sep 5, 2023 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jan 26, 2022 Aug 28, 2023 Resolved
caa FRV Nov 4, 2021 Open
caa FRV Feb 26, 2021 Open
caa FRV Jan 24, 2021 Open
caa FRV Aug 7, 2020 Open
caa FRV Aug 4, 2020 Open
caa FRV Jul 14, 2020 Open
caa FRV Feb 6, 2020 Open
caa HPV Jan 24, 2020 May 3, 2022 Resolved
caa HPV Aug 23, 2019 Dec 28, 2020 Resolved
caa FRV Aug 8, 2019 Open
cwa Permit Violations - Violation Specified in Comment Jan 10, 2019 Open
caa HPV Jun 13, 2017 Feb 22, 2019 Resolved
caa FRV Jan 10, 2017 Open

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant Violation Reported Limit Exceedance Period Status
Oil & Grease DMR, Limited - Numeric Violation 75.00 mg/L 15.00 +400% Jul 2025 Open
Flow, in conduit or thru treatment plant DMR, Limited - Numeric Violation 0.71 MGD 0.54 +31% Jan 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 104.87 kg/d 65.38 +60% Jan 2023 Open
Oil & Grease DMR, Limited - Numeric Violation 82.80 mg/L 15.00 +452% Nov 2022 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 120.08 kg/d 104.87 +15% Sep 2022 Open
Solids, total suspended DMR, Limited - Numeric Violation 404.65 kg/d 212.93 +90% Apr 2022 Open
BOD, 5-day, 20 deg. C DMR, Limited - Numeric Violation 51.80 mg/L 45.00 +15% Jul 2019 Open
pH range excursions, > 60 minutes DMR, Limited - Numeric Violation 0.03 occur/d 0.00 +2,147,483,650% Sep 2018 Open
pH range excursions, > 60 minutes DMR, Limited - Numeric Violation 0.03 occur/d 0.00 +2,147,483,650% Mar 2018 Open
pH range excursions, > 60 minutes DMR, Limited - Numeric Violation 0.10 occur/d 0.00 +2,147,483,650% Aug 2017 Open

Enforcement Actions

Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.

Date Out of Range
Clean Air Act · Case 3602422260
Date Out of Range
Clean Air Act · Case 3602278821
Date Out of Range
Clean Air Act · Case 3604641831
Date Out of Range
Clean Air Act · Case 3604531261
Administrative - Formal
Clean Air Act · Case 3602278823 · Dec 20, 2022
$75,189
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXR000039834-2 · Feb 25, 2022
Administrative - Formal
Clean Air Act · Case 3602120088 · Sep 13, 2021
$390,826
Administrative - Formal
Clean Air Act · Case 3602278836 · Aug 24, 2021
$7,500
Administrative - Formal
Clean Air Act · Case 3602160177 · Feb 1, 2021
$15,000
Administrative - Formal
Clean Air Act · Case 3601982291 · Feb 1, 2021
$26,250
Administrative - Formal
Clean Air Act · Case 3601982320 · Jul 20, 2020
$30,000
Administrative - Formal
Clean Air Act · Case 3601522468 · Aug 16, 2018
$40,000
Administrative - Formal
· Case 06-2018-3318 · Aug 16, 2018
$40,000
Administrative - Formal
Clean Air Act · Case 3601124881 · Jun 27, 2018
$28,826
Administrative - Formal
Clean Air Act · Case 3601760741 · Nov 7, 2017
$9,600
Administrative - Formal
Clean Air Act · Case 3601761070 · Aug 2, 2017
$9,038
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-TXR000039834-1 · Aug 30, 2012

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