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

VALERO REFINING COMPANY-CALIF

Quick Summary

•Released 817,330 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 $1,543,050 in total penalties since records began.
•Reports releases of chemicals classified as known or probable carcinogens.

Address: 3400 E SECOND STREET
BENICIA, CA 94510
View on map ↗
County: SOLANO County
Industry: Manufacturing
NAICS (North American Industry Classification): 324110
Inspections: 19 · last May 10, 2025
Total Penalties: $1,543,050 · last Nov 17, 2022
Registry ID: 110033145353

How This Compares

#4 of 996 TRI reporters in CA

#248 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.

Air (CAA)
Qtrs Non-Compliant

Water (CWA)
Qtrs Non-Compliant

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) -23% overall

Year	Total Releases (lbs)	vs Prior Year
2015	921,565	—
2016	784,811	-15%
2017	817,330	+4%
2018	1,001,170	+22%
2019	775,761	-23%
2020	605,884	-22%
2021	526,781	-13%
2022	512,869	-3%
2023	387,121	-25%
2024	710,680	+84%

2024

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	490,000	—	490,000	—	—
Ammonia	57,455	57,005	450	—	—
n-Hexane	30,000	30,000	—	—	—
Carbonyl sulfide	23,000	23,000	—	—	—
Toluene	19,500	19,500	—	—	31
Xylene (mixed isomers)	15,500	15,500	—	—	175
Methanol	13,000	13,000	—	—	—
Hydrogen sulfide	10,200	10,200	—	—	—
Propylene	9,200	9,200	—	—	—
Benzene	9,100	9,100	—	—	10	♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7,106	7,106	—	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	5,200	5,200	—	—	—
Ethylbenzene	4,780	4,780	—	—	31	♦ Carcinogen
1,2,4-Trimethylbenzene	4,780	4,780	—	—	45
Ethylene	3,256	3,256	—	—	—
Cyclohexane	3,020	3,020	—	—	—
Carbon disulfide	1,900	1,900	—	—	2
Naphthalene	1,572	1,572	—	—	120	♦ Carcinogen
Cumene	799	799	—	—	2	♦ Carcinogen
Hydrogen cyanide	463	430	33	—	—
Nickel compounds	330	210	120	—	16,410	♦ Carcinogen
Phenol	241	91	150	—	2
1,3-Butadiene	99	99	—	—	—	♦ Carcinogen
Tetrachloroethylene	81	81	—	—	—	♦ Carcinogen
Lead compounds	44	44	—	—	48
Mercury compounds	38	38	0	—	34
Styrene	10	10	—	—	—	♦ Carcinogen
Cresol (mixed isomers)	3	3	—	—	—
Phenanthrene	2	2	—	—	47
Polycyclic aromatic compounds	1	1	—	—	—	♦ Carcinogen
Anthracene	0	0	—	—	0
Benzo[g,h,i]perylene	0	0	—	—	1

2023

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Anthracene	—	—	—	—	12
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	240,000	—	240,000	—	—
Ammonia	76,834	76,004	830	—	—
Carbonyl sulfide	22,000	22,000	—	—	—
Methanol	13,000	13,000	—	—	—
Toluene	6,100	6,100	—	—	6,648
Hydrogen sulfide	5,630	5,630	—	—	—
n-Hexane	3,880	3,880	—	—	—
Xylene (mixed isomers)	3,800	3,800	—	—	177
Cyclohexane	3,110	3,110	—	—	—
Benzene	2,880	2,880	—	—	2	♦ Carcinogen
Propylene	2,350	2,350	—	—	—
Carbon disulfide	1,700	1,700	—	—	0
Ethylbenzene	1,330	1,330	—	—	41	♦ Carcinogen
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	1,200	1,200	—	—	—
Ethylene	1,116	1,116	—	—	—
1,2,4-Trimethylbenzene	800	800	—	—	138
Hydrogen cyanide	534	470	64	—	—
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	310	310	—	—	30
1,3-Butadiene	250	250	—	—	—	♦ Carcinogen
Cumene	95	95	—	—	1	♦ Carcinogen
Naphthalene	75	75	—	—	211	♦ Carcinogen
Mercury compounds	46	46	0	—	30
Lead compounds	46	46	—	—	73
Tetrachloroethylene	31	31	—	—	1	♦ Carcinogen
Polycyclic aromatic compounds	2	2	—	—	—	♦ Carcinogen
Cresol (mixed isomers)	2	2	—	—	—
Benzo[g,h,i]perylene	0	0	—	—	2

2022

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Anthracene	—	—	—	—	4
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	335,883	—	335,883	—	—
Ammonia	83,075	82,678	397	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	27,395	27,395	—	—	—
Carbonyl sulfide	14,900	14,900	—	—	—
Methanol	12,350	12,350	—	—	—
Hydrogen sulfide	7,879	7,879	—	—	—
Toluene	5,963	5,963	—	—	34
Xylene (mixed isomers)	4,140	4,140	—	—	144
n-Hexane	3,907	3,907	—	—	—
Cyclohexane	3,234	3,234	—	—	—
Benzene	3,014	3,014	—	—	6	♦ Carcinogen
Zinc compounds	2,274	2,238	36	—	3,943
Propylene	2,064	2,064	—	—	—
Carbon disulfide	1,564	1,564	—	—	—
Ethylbenzene	1,363	1,363	—	—	28	♦ Carcinogen
1,2,4-Trimethylbenzene	1,190	1,190	—	—	19
Nickel compounds	830	723	107	—	75,284	♦ Carcinogen
Hydrogen cyanide	459	442	17	—	—
Vanadium compounds	422	422	—	—	54,126
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	286	286	—	—	—
1,3-Butadiene	164	164	—	—	—	♦ Carcinogen
Mercury compounds	147	147	0	—	77
Tetrachloroethylene	132	132	—	—	3	♦ Carcinogen
Cumene	102	102	—	—	6	♦ Carcinogen
Naphthalene	73	73	—	—	65	♦ Carcinogen
Lead compounds	50	50	—	—	345
Polycyclic aromatic compounds	7	7	—	—	16	♦ Carcinogen
Cresol (mixed isomers)	2	2	—	—	3
Benzo[g,h,i]perylene	0	0	—	—	8

2021

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Benzo[g,h,i]perylene	—	—	—	—	1
Anthracene	—	—	—	—	0
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	399,305	—	399,305	—	—
Ammonia	37,284	36,923	361	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	26,352	26,352	—	—	2,837
Carbonyl sulfide	15,147	15,147	—	—	—
Methanol	12,622	12,622	—	—	—
Toluene	5,763	5,763	—	—	19
Xylene (mixed isomers)	5,264	5,264	—	—	15
Hydrogen sulfide	5,078	5,078	—	—	—
n-Hexane	4,377	4,377	—	—	—
Cyclohexane	3,373	3,373	—	—	—
Propylene	3,048	3,048	—	—	—
Benzene	2,485	2,485	—	—	11	♦ Carcinogen
Ethylbenzene	1,468	1,468	—	—	13	♦ Carcinogen
1,2,4-Trimethylbenzene	1,351	1,351	—	—	1
Carbon disulfide	880	880	—	—	—
Ethylene	777	777	—	—	—
Nickel compounds	600	490	110	—	63,377	♦ Carcinogen
Hydrogen cyanide	474	442	32	—	—
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	286	286	—	—	—
Molybdenum trioxide	258	258	—	—	4,084	♦ Carcinogen
Naphthalene	223	223	—	—	58	♦ Carcinogen
Cumene	106	106	—	—	4	♦ Carcinogen
Vanadium compounds	70	70	—	—	19,392
Tetrachloroethylene	64	64	—	—	—	♦ Carcinogen
1,3-Butadiene	53	53	—	—	—	♦ Carcinogen
Mercury compounds	43	43	0	—	34
Lead compounds	20	20	—	—	327
Polycyclic aromatic compounds	6	6	—	—	—	♦ Carcinogen
Cresol (mixed isomers)	4	4	—	—	1

2020

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Anthracene	—	—	—	—	4
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	456,430	—	456,430	—	—
Ammonia	44,120	43,728	392	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	30,073	30,073	—	—	—
Carbonyl sulfide	20,692	20,692	—	—	—
Methanol	15,926	15,926	—	—	—
Toluene	7,552	7,552	—	0	60
Xylene (mixed isomers)	6,440	6,440	—	0	226
Propylene	4,685	4,683	—	2	—
n-Hexane	4,250	4,250	—	1	—
Cyclohexane	3,230	3,230	—	0	—
Benzene	3,014	3,014	—	0	4	♦ Carcinogen
Ethylene	2,004	2,004	—	—	—
Ethylbenzene	1,790	1,790	—	0	32	♦ Carcinogen
1,2,4-Trimethylbenzene	1,756	1,755	—	0	416
Hydrogen sulfide	1,541	1,539	—	2	—
Hydrogen cyanide	519	468	51	—	—
Carbon disulfide	506	506	—	—	—
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	303	303	—	—	—
Nickel compounds	285	171	114	—	23,437	♦ Carcinogen
Naphthalene	264	261	—	3	132	♦ Carcinogen
Molybdenum trioxide	137	137	—	—	3,788	♦ Carcinogen
Cumene	129	128	—	0	17	♦ Carcinogen
Tetrachloroethylene	62	62	—	—	—	♦ Carcinogen
Polycyclic aromatic compounds	57	0	—	57	—	♦ Carcinogen
1,3-Butadiene	48	48	—	—	—	♦ Carcinogen
Mercury compounds	46	46	0	—	63
Lead compounds	21	21	—	—	572
Cresol (mixed isomers)	3	3	—	—	—
Benzo[g,h,i]perylene	0	—	—	0	0

2019

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Anthracene	—	—	—	—	2
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	612,899	—	612,899	—	—
Ammonia	40,244	39,894	350	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	25,433	25,433	—	—	93
Carbonyl sulfide	24,545	24,545	—	—	—
Propylene	12,018	12,018	—	—	—
Toluene	11,903	11,903	—	—	23
Cyclohexane	10,854	10,854	—	—	—
Xylene (mixed isomers)	8,102	8,102	—	—	23
Hydrogen sulfide	7,425	7,420	5	—	—
n-Hexane	5,912	5,912	—	—	—
Benzene	5,875	5,875	—	—	53	♦ Carcinogen
Ethylene	2,129	2,129	—	—	—
Ethylbenzene	2,117	2,117	—	—	3	♦ Carcinogen
Nickel compounds	1,556	1,451	105	—	318,636	♦ Carcinogen
1,2,4-Trimethylbenzene	1,523	1,523	—	—	8
Zinc compounds	628	572	56	—	36,811
Hydrogen cyanide	402	368	34	—	—
Copper compounds	363	341	22	—	46,225
Chromium compounds (except for chromite ore mined in the Transvaal Region)	323	317	6	—	6,656
1,3-Butadiene	280	280	—	—	—	♦ Carcinogen
Naphthalene	268	268	—	—	24	♦ Carcinogen
Carbon disulfide	266	266	—	—	—
Molybdenum trioxide	165	165	—	—	2,922	♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	155	155	—	—	—
Cumene	127	127	—	—	—	♦ Carcinogen
Methanol	80	80	—	—	—
Tetrachloroethylene	62	62	—	—	—	♦ Carcinogen
Vanadium compounds	60	60	—	—	21,195
Mercury compounds	24	24	0	—	40
Lead compounds	20	20	—	—	762
Cresol (mixed isomers)	2	2	—	—	—
Polycyclic aromatic compounds	1	1	—	—	—	♦ Carcinogen
Benzo[g,h,i]perylene	0	0	—	—	1

2018

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	824,764	—	824,764	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	43,856	43,856	—	—	—
Ammonia	43,118	39,448	3,670	—	—
Carbonyl sulfide	24,382	24,382	—	—	—
n-Hexane	12,242	12,242	—	—	—
Xylene (mixed isomers)	10,357	10,357	—	—	309
Cyclohexane	10,043	10,043	—	—	—
Toluene	7,743	7,743	—	—	65
Hydrogen sulfide	6,184	6,179	5	—	—
Ethylene	4,441	4,441	—	—	—
Propylene	3,412	3,412	—	—	—
Benzene	3,011	3,011	—	—	2	♦ Carcinogen
Ethylbenzene	2,337	2,337	—	—	34	♦ Carcinogen
1,2,4-Trimethylbenzene	2,005	2,005	—	—	587
Tetrachloroethylene	1,570	1,570	—	—	—	♦ Carcinogen
Hydrogen cyanide	509	472	37	—	—
Nickel compounds	353	201	152	—	27,958	♦ Carcinogen
Naphthalene	257	257	—	—	177	♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	199	199	—	—	—
Cumene	172	172	—	—	21	♦ Carcinogen
Molybdenum trioxide	80	80	—	—	1,470	♦ Carcinogen
1,3-Butadiene	74	74	—	—	—	♦ Carcinogen
Lead compounds	26	26	—	—	448
Mercury compounds	22	22	0	—	68
Ethylene glycol	9	9	—	—	441
Cresol (mixed isomers)	2	2	—	—	—
Polycyclic aromatic compounds	1	1	—	—	—	♦ Carcinogen
Vanadium compounds	0	0	—	—	10,643
Methanol	0	0	—	—	—
Anthracene	0	0	—	—	2
Benzo[g,h,i]perylene	0	0	—	—	—

2017

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	657,371	—	657,371	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	38,546	38,546	—	—	—
Ammonia	37,515	34,201	3,314	—	—
Carbonyl sulfide	20,270	20,270	—	—	—
n-Hexane	12,195	12,195	—	—	—
Xylene (mixed isomers)	9,727	9,727	—	—	2,286
Cyclohexane	7,515	7,515	—	—	—
Toluene	7,251	7,251	—	—	276
Hydrogen sulfide	7,010	7,005	5	—	—
Propylene	5,219	5,219	—	—	—
Ethylene	3,688	3,688	—	—	—
Benzene	2,266	2,266	—	—	8	♦ Carcinogen
Ethylbenzene	1,940	1,940	—	—	298	♦ Carcinogen
1,2,4-Trimethylbenzene	1,765	1,765	—	—	3,980
Methanol	1,299	1,299	—	—	—
Tetrachloroethylene	1,207	1,207	—	—	—	♦ Carcinogen
Zinc compounds	486	404	82	—	53,008
Hydrogen cyanide	443	394	49	—	—
Nickel compounds	390	341	49	—	55,573	♦ Carcinogen
Naphthalene	289	289	—	—	138	♦ Carcinogen
Cresol (mixed isomers)	203	203	—	—	—
Cumene	176	176	—	—	72	♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	166	166	—	—	—
Molybdenum trioxide	157	157	—	—	3,495	♦ Carcinogen
Polycyclic aromatic compounds	67	67	—	—	—	♦ Carcinogen
1,3-Butadiene	64	64	—	—	—	♦ Carcinogen
Vanadium compounds	59	59	—	—	22,292
Lead compounds	23	23	—	—	2,226
Mercury compounds	20	20	0	—	76
Benzo[g,h,i]perylene	0	0	—	—	—
Anthracene	0	0	—	—	3

2016

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	601,998	—	601,998	—	—
Ammonia	45,553	40,528	5,025	—	—
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	25,916	25,916	—	—	—
Xylene (mixed isomers)	21,233	21,233	—	—	3,819
Carbonyl sulfide	18,948	18,948	—	—	—
Toluene	16,085	16,085	—	—	722
n-Hexane	10,791	10,791	—	—	—
Cyclohexane	7,366	7,366	—	—	—
Tetrachloroethylene	5,922	5,922	—	—	—	♦ Carcinogen
Benzene	5,232	5,232	—	—	61	♦ Carcinogen
1,2,4-Trimethylbenzene	5,040	5,040	—	—	437
Ethylbenzene	4,618	4,618	—	—	514	♦ Carcinogen
Hydrogen sulfide	4,277	4,277	—	—	—
Propylene	3,878	3,878	—	—	—
Ethylene	2,726	2,726	—	—	—
Naphthalene	1,036	1,036	—	—	102	♦ Carcinogen
Zinc compounds	942	893	49	—	127,149
Methanol	644	644	—	—	—
Copper compounds	572	553	19	—	114,875
Hydrogen cyanide	534	456	78	—	—
Nickel compounds	532	483	49	—	90,597	♦ Carcinogen
Cumene	314	314	—	—	18	♦ Carcinogen
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	192	192	—	—	—
Molybdenum trioxide	152	152	—	—	4,618	♦ Carcinogen
1,3-Butadiene	131	131	—	—	—	♦ Carcinogen
Cresol (mixed isomers)	74	74	—	—	0
Polycyclic aromatic compounds	66	66	—	—	—	♦ Carcinogen
Lead compounds	16	16	—	—	1,807
Mercury compounds	14	14	—	—	39
Ethylene glycol	9	9	—	—	1,286
Benzo[g,h,i]perylene	0	0	—	—	—
Anthracene	0	0	—	—	2

2015

Chemical	Total (lbs)	Air	Water	Land	Off-Site
Nitrate compounds (water dissociable; reportable only when in aqueous solution)	777,280	—	777,280	—	—
Carbonyl sulfide	20,921	20,921	—	—	—
Toluene	19,394	19,394	—	—	121
Ammonia	18,649	15,390	3,259	—	—
Xylene (mixed isomers)	16,904	16,904	—	—	761
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	11,317	11,317	—	—	—
Cyclohexane	8,667	8,667	—	—	—
Tetrachloroethylene	7,101	7,101	—	—	—	♦ Carcinogen
Propylene	6,813	6,813	—	—	—
Benzene	6,685	6,685	—	—	65	♦ Carcinogen
Hydrogen sulfide	5,953	5,953	—	—	—
Ethylbenzene	4,385	4,385	—	—	1,577	♦ Carcinogen
Nickel compounds	4,334	4,285	49	—	204,939	♦ Carcinogen
n-Hexane	3,799	3,799	—	—	11,948
1,2,4-Trimethylbenzene	3,391	3,391	—	—	93
Ethylene	2,275	2,275	—	—	—
Methanol	1,489	1,489	—	—	—
Naphthalene	853	853	—	—	174	♦ Carcinogen
Hydrogen cyanide	506	451	55	—	—
Molybdenum trioxide	224	224	—	—	6,444	♦ Carcinogen
Cumene	203	203	—	—	5	♦ Carcinogen
1,3-Butadiene	195	195	—	—	—	♦ Carcinogen
Vanadium compounds	86	86	—	—	18,765
Polycyclic aromatic compounds	71	71	—	—	—	♦ Carcinogen
Cresol (mixed isomers)	44	44	—	—	1
Ethylene glycol	11	11	—	—	10,780
Lead compounds	7	7	—	—	2,391
Mercury compounds	7	6	0	—	111
Cyanide compounds	2	2	—	—	—
Benzo[g,h,i]perylene	0	0	—	—	0
Anthracene	0	0	—	—	1

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
Anthracene	—	—	—	0
Cumene	—	31	1,300	—
Ethylene	—	—	—	2,700
1,3-Butadiene	—	—	—	9
Carbon disulfide	—	—	—	33,000
n-Hexane	—	32,000	2,900	—
Cyclohexane	—	68	1,000	290
Phenol	—	0	1,500	30,000
Ammonia	—	—	15,000,000	13,000
Lead compounds	—	18	—	—
Toluene	—	11,005	25,000	6,402
Benzene	—	3,006	33,000	6,800
Hydrogen cyanide	—	—	170,000	—
Xylene (mixed isomers)	—	4,861	17,000	6,208
Carbonyl sulfide	—	—	—	250,000
Phenanthrene	—	46	—	1
Naphthalene	—	123	390	303
1,2,4-Trimethylbenzene	—	24	13,000	695
Styrene	—	—	—	11
Mercury compounds	—	21	—	—
Cresol (mixed isomers)	—	—	580,000	49,000
Hydrogen sulfide	—	—	—	2,700
Nickel compounds	—	830	—	—
Propylene	—	—	—	160
Ethylbenzene	—	1,013	3,500	641
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	—	—	—	110,000

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 NEVADA BEATTY, NV	Nickel compounds	13,000	—	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Ethylbenzene	0	—	—	—
POTRERO HILLS LANDFILL SUISUN CITY, CA	Nickel compounds	60	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Anthracene	—	—	—	0
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Ethylbenzene	—	—	—	1
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Ethylbenzene	—	13	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Ethylbenzene	0	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Ethylbenzene	16	—	—	—
ALPHA OMEGA RECYCLING, INC. LONGVIEW, TX	Ethylbenzene	—	0	—	—
POTRERO HILLS LANDFILL SUISUN CITY, CA	Ethylbenzene	0	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Nickel compounds	—	440	—	—
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Nickel compounds	—	390	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Nickel compounds	420	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Nickel compounds	2,100	—	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Toluene	3	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Toluene	—	—	—	2
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Toluene	—	5	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Toluene	0	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Toluene	18	—	—	—
ALPHA OMEGA RECYCLING, INC. LONGVIEW, TX	Toluene	—	0	—	—
US ECOLOGY NEVADA BEATTY, NV	Toluene	2	—	—	—
POTRERO HILLS LANDFILL SUISUN CITY, CA	Toluene	1	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Mercury compounds	1	—	—	—
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Mercury compounds	—	20	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Mercury compounds	13	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Mercury compounds	0	—	—	—
ALPHA OMEGA RECYCLING, INC. LONGVIEW, TX	Mercury compounds	—	1	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Benzene	0	—	—	—
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Benzene	—	6	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Benzene	0	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Benzene	1	—	—	—
ALPHA OMEGA RECYCLING, INC. LONGVIEW, TX	Benzene	0	—	—	—
US ECOLOGY NEVADA BEATTY, NV	Benzene	2	—	—	—
POTRERO HILLS LANDFILL SUISUN CITY, CA	Benzene	0	—	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	1,2,4-Trimethylbenzene	2	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	1,2,4-Trimethylbenzene	—	—	—	5
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	1,2,4-Trimethylbenzene	—	19	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	1,2,4-Trimethylbenzene	19	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Lead compounds	14	—	—	—
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Lead compounds	—	18	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Lead compounds	10	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Lead compounds	0	—	—	—
POTRERO HILLS LANDFILL SUISUN CITY, CA	Lead compounds	7	—	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Naphthalene	4	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Naphthalene	—	—	—	3
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Naphthalene	—	110	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Naphthalene	4	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Phenol	2	—	—	—
ALPHA OMEGA RECYCLING, INC. LONGVIEW, TX	Phenol	—	0	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Xylene (mixed isomers)	3	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Xylene (mixed isomers)	—	—	—	8
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Xylene (mixed isomers)	—	61	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Xylene (mixed isomers)	0	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Xylene (mixed isomers)	100	—	—	—
ALPHA OMEGA RECYCLING, INC. LONGVIEW, TX	Xylene (mixed isomers)	—	0	—	—
US ECOLOGY NEVADA BEATTY, NV	Xylene (mixed isomers)	0	—	—	—
POTRERO HILLS LANDFILL SUISUN CITY, CA	Xylene (mixed isomers)	2	—	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Cumene	0	—	—	—
US ECOLOGY TEXAS ROBSTOWN, TX	Cumene	1	—	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Phenanthrene	0	—	—	—
CLEAN HARBORS - ARAGONITE LLC GRANTSVILLE, UT	Phenanthrene	—	—	—	1
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. KIMBALL, NE	Phenanthrene	—	46	—	—
CLEAN HARBORS - BUTTONWILLOW BUTTONWILLOW, CA	Carbon disulfide	2	—	—	—
REPUBLIC SERVICES - KELLER CANYON PITTSBURG, CA	Benzo[g,h,i]perylene	1	—	—	—

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	FRV	Apr 3, 2025	—	Open
caa	FRV	Jan 17, 2025	—	Open
rcra	State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements	Jan 16, 2025	Feb 28, 2025	Resolved
rcra	Standards Applicable to Generators of HW: General	Jan 16, 2025	Jan 29, 2025	Resolved
caa	FRV	Mar 12, 2024	—	Open
caa	FRV	Mar 7, 2022	—	Open
caa	FRV	Oct 11, 2021	—	Open
caa	FRV	Oct 11, 2021	—	Open
caa	FRV	Oct 6, 2021	—	Open
caa	FRV	Jun 17, 2021	—	Open
caa	FRV	Jun 17, 2021	—	Open
caa	FRV	Dec 1, 2020	—	Open
caa	FRV	Dec 1, 2020	—	Open
caa	FRV	Nov 17, 2020	—	Open
caa	FRV	Mar 16, 2020	—	Open
caa	FRV	Mar 16, 2020	—	Open
caa	FRV	Feb 20, 2020	—	Open
caa	FRV	Feb 20, 2020	—	Open
caa	FRV	Oct 24, 2019	—	Open
caa	FRV	Oct 24, 2019	—	Open
caa	FRV	Oct 24, 2019	—	Open
caa	HPV	Oct 24, 2019	May 3, 2022	Resolved
caa	FRV	Oct 24, 2019	—	Open
caa	FRV	Jun 13, 2019	—	Open
caa	FRV	Jun 13, 2019	—	Open
caa	HPV	Jun 13, 2019	May 3, 2022	Resolved
caa	HPV	Jun 13, 2019	May 3, 2022	Resolved
caa	FRV	Feb 25, 2019	—	Open
caa	FRV	Nov 29, 2018	—	Open
caa	HPV	Nov 29, 2018	May 3, 2022	Resolved
caa	HPV	Nov 5, 2018	Nov 5, 2018	Resolved
caa	HPV	Nov 5, 2018	Nov 5, 2018	Resolved
cwa	Reporting Violations - Improper/ Incorrect Reporting	Oct 31, 2018	—	Open
caa	HPV	Jul 25, 2018	May 3, 2022	Resolved
caa	FRV	Jul 25, 2018	—	Open
caa	HPV	Jun 7, 2017	May 3, 2022	Resolved
caa	HPV	May 23, 2017	May 3, 2022	Resolved
caa	HPV	May 23, 2017	May 3, 2022	Resolved
caa	HPV	May 23, 2017	May 3, 2022	Resolved
caa	HPV	May 23, 2017	May 3, 2022	Resolved
caa	HPV	May 11, 2017	May 3, 2022	Resolved
caa	HPV	May 9, 2017	May 3, 2022	Resolved
caa	HPV	May 8, 2017	May 3, 2022	Resolved
caa	HPV	May 8, 2017	May 3, 2022	Resolved
caa	HPV	May 8, 2017	May 3, 2022	Resolved
caa	HPV	May 8, 2017	May 3, 2022	Resolved
caa	HPV	May 8, 2017	May 8, 2017	Resolved
caa	HPV	May 8, 2017	May 3, 2022	Resolved
caa	FRV	Jul 8, 2016	—	Open
caa	FRV	Jul 5, 2016	—	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 and grease	DMR, Limited - Numeric Violation	8.70 mg/L	8.00	+9%	Mar 2024	Open
TU Static 48Hr Chronic Haliotis rufescens	DMR, Limited - Numeric Violation	14.90 toxic	10.00	+49%	Mar 2024	Open
Solids, total suspended	DMR, Limited - Numeric Violation	24.40 mg/L	21.00	+16%	Feb 2024	Open
Oil and grease	DMR, Limited - Numeric Violation	8.63 mg/L	8.00	+8%	Dec 2022	Open
Oil and grease	DMR, Limited - Numeric Violation	8.95 mg/L	8.00	+12%	Dec 2022	Open
Solids, total suspended	DMR, Limited - Numeric Violation	38.00 mg/L	21.00	+81%	Mar 2022	Resolved
Oil and grease	DMR, Limited - Numeric Violation	11.30 mg/L	8.00	+41%	Mar 2022	Open
Oil and grease	DMR, Limited - Numeric Violation	9.23 mg/L	8.00	+15%	Mar 2022	Open
Oil and grease	DMR, Limited - Numeric Violation	10.40 mg/L	8.00	+30%	Mar 2022	Open
Oil and grease	DMR, Limited - Numeric Violation	10.60 mg/L	8.00	+33%	Mar 2022	Open
Solids, total suspended	DMR, Limited - Numeric Violation	38.40 mg/L	33.00	+16%	Mar 2022	Open
Solids, total suspended	DMR, Limited - Numeric Violation	38.40 mg/L	33.00	+16%	Jan 2022	Open
Solids, total suspended	DMR, Limited - Numeric Violation	38.40 mg/L	21.00	+83%	Jan 2022	Open
Solids, total suspended	DMR, Limited - Numeric Violation	25.00 mg/L	21.00	+19%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	58.00 mg/L	21.00	+176%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	57.90 mg/L	21.00	+176%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	38.40 mg/L	33.00	+16%	Dec 2021	Open
Oil and grease	DMR, Limited - Numeric Violation	16.80 mg/L	15.00	+12%	Dec 2021	Open
Oil and grease	DMR, Limited - Numeric Violation	16.80 mg/L	15.00	+12%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	106.00 mg/L	33.00	+221%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	38.40 mg/L	33.00	+16%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	25.00 mg/L	21.00	+19%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	103.20 mg/L	33.00	+213%	Dec 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	22.50 mg/L	21.00	+7%	Oct 2021	Open
Oil and grease	DMR, Limited - Numeric Violation	9.10 mg/L	8.00	+14%	Oct 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	88.20 mg/L	33.00	+167%	Oct 2021	Open
Oil and grease	DMR, Limited - Numeric Violation	8.90 mg/L	8.00	+11%	May 2019	Open
Solids, total suspended	DMR, Limited - Numeric Violation	50.00 mg/L	33.00	+52%	Jan 2018	Open
Solids, total suspended	DMR, Limited - Numeric Violation	46.00 mg/L	33.00	+39%	Jan 2018	Open
Mercury, total recoverable	DMR, Limited - Numeric Violation	0.00 mg/L	0.00	+67%	Jan 2018	Open
Solids, total suspended	DMR, Limited - Numeric Violation	44.00 mg/L	21.00	+110%	Jan 2018	Resolved
Solids, total suspended	DMR, Limited - Numeric Violation	50.00 mg/L	21.00	+138%	Jan 2018	Open
Mercury, total recoverable	DMR, Limited - Numeric Violation	0.00 kg/d	0.00	+16%	Dec 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	66.00 mg/L	21.00	+214%	Nov 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	66.00 mg/L	33.00	+100%	Nov 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	259.00 mg/L	21.00	+1,133%	Nov 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	30.00 mg/L	21.00	+43%	Nov 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	409.00 mg/L	33.00	+1,139%	Nov 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	259.00 mg/L	33.00	+685%	Nov 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	409.00 mg/L	21.00	+1,848%	Nov 2017	Open
Solids, total suspended	DMR, Limited - Numeric Violation	22.00 mg/L	21.00	+5%	Nov 2017	Open
Oil and grease	DMR, Limited - Numeric Violation	8.50 mg/L	8.00	+6%	Mar 2017	Open
Chromium, total recoverable	DMR, Limited - Numeric Violation	601.00 mg/L	0.60	+100,067%	Jan 2017	Open
Mercury, total recoverable	DMR, Limited - Numeric Violation	0.00 kg/d	0.00	+35%	Dec 2016	Open
Selenium, total recoverable	DMR, Limited - Numeric Violation	0.04 mg/L	0.04	+2%	Jan 2016	Open
Selenium, total recoverable	DMR, Limited - Numeric Violation	0.11 mg/L	0.05	+120%	Jan 2016	Open
Solids, total suspended	DMR, Limited - Numeric Violation	2,390.71 kg/d	1,089.60	+119%	Jan 2016	Open
Chromium, total recoverable	DMR, Limited - Numeric Violation	722.00 mg/L	0.60	+120,233%	Jan 2016	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.

State CWA Penalty AO

Clean Water Act · Case CA-N00003490

Notice of Violation

Clean Air Act · Case 3604432382 · Apr 3, 2025

INSPECTION REPORT w/VIOLATIONS (MAILED DATE)

RCRA (Hazardous Waste) · Case RCRA-CAD063001770-509 · Feb 10, 2025

Notice of Violation

Clean Air Act · Case 3604376540 · Jan 17, 2025

WRITTEN INFORMAL

RCRA (Hazardous Waste) · Case RCRA-CAD063001770-303 · Jan 16, 2025

Notice of Violation

Clean Air Act · Case 3603965993 · Mar 12, 2024

Administrative - Formal

· Case 09-2023-3502 · Mar 30, 2023

$1,224,550

State CWA Penalty AO

Clean Water Act · Case CA-CFEA448308 · Nov 17, 2022

$12,000

Administrative - Formal

Clean Air Act · Case 3603295284 · May 3, 2022

$10,000

Administrative - Formal

Clean Air Act · Case 3602136126 · May 3, 2022

$3,000

Administrative - Formal

Clean Air Act · Case 3602138644 · May 3, 2022

$34,000

Administrative - Formal

Clean Air Act · Case 3602138631 · May 3, 2022

$3,200

Administrative - Formal

Clean Air Act · Case 3602136209 · May 3, 2022

$28,000

Administrative - Formal

Clean Air Act · Case 3602138623 · May 3, 2022

$10,000

Administrative - Formal

Clean Air Act · Case 3603295291 · May 3, 2022

$5,000

Administrative - Formal

Clean Air Act · Case 3602136095 · May 3, 2022

$28,000

Administrative - Formal

Clean Air Act · Case 3602138639 · May 3, 2022

$3,000

Administrative - Formal

Clean Air Act · Case 3603307164 · May 3, 2022

$12,500

Administrative - Formal

Clean Air Act · Case 3603307170 · May 3, 2022

$18,000

Administrative - Formal

Clean Air Act · Case 3603295294 · May 3, 2022

$17,000

Other facilities in SOLANO County, CA

VOLKSWAGEN OF VACAVILLE

VACAVILLE, CA

INSULFOAM LLC

DIXON, CA · Manufacturing

CEMEX CONSTRUCTION MATERIALS PACIFIC LLC

FAIRFIELD, CA · Manufacturing

HURLEY DIESEL AND POWER, BAYSHORE SHOP

BENICIA, CA · Other Services

EASTERLY WASTEWATER TREATMENT PLANT

ELMIRA, CA

DELTA CONSERVATION CAMP-WELL 03 - TREATED

SUISUN CITY, CA

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