Carson Refinery

Active WDID 4 19I024232 Carson, Los Angeles County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record: Active Industrial; Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported: Carson, Los Angeles County; Region 4 · Los Angeles · Location · Statewide map
Receiving water: Dominguez Channel (as reported by the facility); Evidence: candidate, awaiting review Details
Identified receiving water on the 2026 303(d) list: Not established; Shown only when the reported receiving water is identified and corroborated.
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity: None
Monitoring results Evidence: facility-reported: 12,956 distinct results, 12 reporting years (2015 to 2026); Most recent sample Sep 06, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record: 1 inspection · 1 violation record · 1 enforcement action; Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported: 13 records; TMDL records

Each label shows where a statement comes from. How to read the labels.

Overview and location

Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates: 33.80885, -118.23624
Precision: 5 decimal places
Shared point: No
Matches application record: same

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address: 1801 E Sepulveda Blvd, Carson 78259
Regional Water Board: 4 — Los Angeles

HUC12 watershed Evidence: spatial

Lower Dominguez Channel HUC12 180701060102

The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.

Permits and applications Evidence: SMARTS record

Current permit record

Permit type: Industrial
Application type: Notice of Intent (WDID code I)
Status: Active
Operator: Tesoro Refining and Marketing Company LLC
Primary industry (SIC): 2911-Petroleum Refining
Secondary SIC: 4911-Electric Services
Tertiary SIC: 2821-Plastics Material and Synthetic Resins, and Nonvulcanizable Elastomers
Application ID: 437378
NOI processed: May 03, 2013
Last certified: Jan 13, 2023
Facility size: 685 Acres
Impervious area: 81.6 %

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
Application	Type	Status	Processed	Terminated	Certified
437378	Industrial	Active	May 03, 2013	—	Jan 13, 2023

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported: Dominguez Channel
Discharges directly / indirectly: Y / N (as answered in the permit application)

Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review

Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.

Why it is not confirmed (1)

C1 name is only a prefix of official names

2 official waterbodies share this name; none is assigned without review.

Impaired waters and TMDLs

Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.

Nearby waterbodies Evidence: geographic proximity

Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.

No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.

SMARTS TMDL records Evidence: SMARTS-reported

SMARTS TMDL record as reported for this facility; it is not a determination that the TMDL applies to the facility.

TMDL records SMARTS lists for this facility
TMDL	Waterbody (as reported)	Parameter	Limit	Type	Period	Due	Discharges to TMDL water
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel Estuary	Copper, Total	.0058 mg/L	TMDL NAL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	R4 - Greater Los Angeles/Long Beach Harbor Waters	Copper, Total	.0058 mg/L	TMDL NAL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel and Torrance Lateral Channel	Copper, Total	.0097 mg/L	NEL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel and Torrance Lateral Channel	Copper, Total	.20751 mg/L	TMDL NAL instantaneous	INTERIM	2020-07-01	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel and Torrance Lateral Channel	Lead, Total	.0427 mg/L	NEL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel Estuary	Lead, Total	.221 mg/L	TMDL NAL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	R4 - Greater Los Angeles/Long Beach Harbor Waters	Lead, Total	.221 mg/L	TMDL NAL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel and Torrance Lateral Channel	Lead, Total	.12288 mg/L	TMDL NAL instantaneous	INTERIM	2020-07-01	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel Estuary	Polynuclear Aromatic Hydrocarbons (PAHs)	.000049 ug/L	TMDL NAL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	R4 - Greater Los Angeles/Long Beach Harbor Waters	Zinc, Total	.095 mg/L	TMDL NAL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel and Torrance Lateral Channel	Zinc, Total	.0697 mg/L	NEL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel Estuary	Zinc, Total	.095 mg/L	TMDL NAL instantaneous	FINAL	2032-05-05	Y
R4 - Los Angeles and Long Beach Harbor Waters TMDL	Dominguez Channel and Torrance Lateral Channel	Zinc, Total	.89887 mg/L	TMDL NAL instantaneous	INTERIM	2020-07-01	Y

13 records. Links between these records and specific TMDL projects or listed waterbodies have not been reviewed and are not shown.

Reported monitoring results Evidence: facility-reported

Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.

12,956 distinct measurements across 112 parameters, most recent sample Sep 06, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)	Distinct results	Parameters	With several versions	First sample	Last sample
2026	308	79	0	Sep 06, 2026	Sep 06, 2026
2025	836	83	0	Oct 14, 2025	Feb 16, 2026
2024	233	25	0	Feb 07, 2025	Feb 13, 2025
2023	397	40	0	Nov 15, 2023	Feb 19, 2024
2022	1,066	96	0	Nov 08, 2022	Jan 14, 2023
2021	630	95	0	Dec 14, 2021	Dec 23, 2021
2020	1,019	86	0	Dec 28, 2020	Jan 29, 2021
2019	2,039	86	0	Nov 27, 2019	Mar 12, 2020
2018	1,362	87	0	Dec 06, 2018	Mar 02, 2019
2017	1,193	86	0	Jan 08, 2018	Mar 11, 2018
2016	2,021	87	0	Nov 20, 2016	Jan 09, 2017
2015	1,874	87	44	Sep 15, 2015	Feb 17, 2016

By parameter

Distinct results by parameter
Parameter	Units	Measurements	Below detection	First sample	Last sample	Results
Ammonia, Total (as N)	mg/L	193	21	Sep 15, 2015	Sep 06, 2026	Results
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C)	mg/L	193	29	Sep 15, 2015	Sep 06, 2026	Results
Chemical Oxygen Demand (COD)	mg/L	193	66	Sep 15, 2015	Sep 06, 2026	Results
Oil and Grease	mg/L	193	129	Sep 15, 2015	Sep 06, 2026	Results
Total Suspended Solids (TSS)	mg/L	192	0	Sep 15, 2015	Sep 06, 2026	Results
Sulfide, Total (as S)	mg/L	190	184	Sep 15, 2015	Sep 06, 2026	Results
Aniline	ug/L	178	123	Sep 15, 2015	Sep 06, 2026	Results
Pyrene	ug/L	177	161	Sep 15, 2015	Sep 06, 2026	Results
Chrysene	ug/L	176	160	Sep 15, 2015	Sep 06, 2026	Results
Benzo(a)pyrene	ug/L	173	156	Sep 15, 2015	Sep 06, 2026	Results
Benzo(a)anthracene	ug/L	172	169	Sep 15, 2015	Sep 06, 2026	Results
Phenanthrene	ug/L	171	165	Sep 15, 2015	Sep 06, 2026	Results

Show 112 more parameters

More parameters
Parameter	Units	Measurements	Below detection	First sample	Last sample	Results
Bis (2-Ethylhexyl) Phthalate	ug/L	170	133	Sep 15, 2015	Sep 06, 2026	Results
pH	SU	167	0	Jan 05, 2016	Sep 06, 2026	Results
Benzoic Acid	ug/L	161	101	Sep 15, 2015	Sep 06, 2026	Results
Benzyl alcohol	ug/L	159	136	Sep 15, 2015	Sep 06, 2026	Results
4-Nitrophenol	ug/L	158	154	Sep 15, 2015	Sep 06, 2026	Results
2,4-Dinitrophenol	ug/L	157	148	Sep 15, 2015	Sep 06, 2026	Results
Benzo(b)fluoranthene	ug/L	155	141	Sep 15, 2015	Sep 06, 2026	Results
Butylbenzyl Phthalate	ug/L	155	148	Sep 15, 2015	Sep 06, 2026	Results
Dimethyl Phthalate	ug/L	155	143	Sep 15, 2015	Feb 19, 2024	Results
Benzo(ghi)perylene	ug/L	154	139	Sep 15, 2015	Sep 06, 2026	Results
Pentachlorophenol	ug/L	153	150	Sep 15, 2015	Sep 06, 2026	Results
Indeno (1,2,3-cd) Pyrene	ug/L	147	144	Sep 15, 2015	Sep 06, 2026	Results
Fluoranthene	ug/L	145	141	Sep 15, 2015	Sep 06, 2026	Results
Cadmium, Total Recoverable	ug/L	144	117	Sep 15, 2015	Jan 14, 2023	Results
Naphthalene	ug/L	144	142	Sep 15, 2015	Sep 06, 2026	Results
Anthracene	ug/L	143	141	Sep 15, 2015	Sep 06, 2026	Results
Benzo(k)fluoranthene	ug/L	142	141	Sep 15, 2015	Sep 06, 2026	Results
Mercury, Total	ug/L	142	115	Jan 05, 2017	Sep 06, 2026	Results
Acenaphthene	ug/L	141	140	Sep 15, 2015	Sep 06, 2026	Results
Acenaphthylene	ug/L	141	141	Sep 15, 2015	Sep 06, 2026	Results
Fluorene	ug/L	141	141	Sep 15, 2015	Sep 06, 2026	Results
Chromium (VI) Dissolved	ug/L	140	100	Sep 15, 2015	Oct 14, 2025	Results
Phenol, Single Compound	ug/L	140	127	Sep 15, 2015	Feb 16, 2026	Results
1,2,4-Trichlorobenzene	ug/L	138	138	Sep 15, 2015	Sep 06, 2026	Results
1,2-Dichlorobenzene	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
1,4-Dichlorobenzene	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
2,4-Dimethylphenol	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
2,4-Dinitrotoluene	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
2-Chloronaphthalene	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
2-Methylphenol	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
2-Nitroaniline	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
4-Nitroaniline	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
Bis (2-Chloroethoxy) Methane	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
Dibenzofuran	ug/L	137	136	Sep 15, 2015	Sep 06, 2026	Results
Hexachlorobutadiene	ug/L	137	136	Sep 15, 2015	Sep 06, 2026	Results
Hexachlorocyclopentadiene	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
Hexachloroethane	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
Isophorone	ug/L	137	137	Sep 15, 2015	Sep 06, 2026	Results
1,2-Diphenylhydrazine	ug/L	136	136	Sep 15, 2015	Sep 06, 2026	Results
2,4,6-Trichlorophenol	ug/L	136	135	Sep 15, 2015	Sep 06, 2026	Results
2-Nitrophenol	ug/L	136	136	Sep 15, 2015	Sep 06, 2026	Results
3-Nitroaniline	ug/L	136	136	Sep 15, 2015	Sep 06, 2026	Results
4-Bromophenyl Phenyl Ether	ug/L	136	136	Sep 15, 2015	Sep 06, 2026	Results
4-Chlorophenyl Phenyl Ether	ug/L	136	136	Sep 15, 2015	Sep 06, 2026	Results
Bis (2-Chloroisopropyl) Ether	ug/L	136	135	Sep 15, 2015	Sep 06, 2026	Results
Hexachlorobenzene	ug/L	136	136	Sep 15, 2015	Sep 06, 2026	Results
N-Nitrosodi-n-Propylamine	ug/L	136	136	Sep 15, 2015	Sep 06, 2026	Results
2,4,5-Trichlorophenol	ug/L	135	135	Sep 15, 2015	Sep 06, 2026	Results
2,4-Dichlorophenol	ug/L	135	135	Sep 15, 2015	Sep 06, 2026	Results
3,3-Dichlorobenzidine	ug/L	135	135	Sep 15, 2015	Sep 06, 2026	Results
Benzidine	ug/L	135	135	Sep 15, 2015	Sep 06, 2026	Results
N-Nitrosodiphenylamine	ug/L	135	135	Sep 15, 2015	Sep 06, 2026	Results
2,6-Dinitrotoluene	ug/L	134	134	Sep 15, 2015	Sep 06, 2026	Results
Diethyl Phthalate	ug/L	132	123	Sep 15, 2015	Nov 15, 2023	Results
3-Methylphenol/4-Methylphenol Coelution	ug/L	130	130	Sep 15, 2015	Sep 06, 2026	Results
Di-n-butyl Phthalate	ug/L	129	129	Sep 15, 2015	Sep 06, 2026	Results
Copper, Total Recoverable	ug/L	128	0	Sep 15, 2015	Jan 14, 2023	Results
Lead, Total Recoverable	ug/L	128	3	Sep 15, 2015	Jan 14, 2023	Results
Zinc, Total Recoverable	ug/L	128	1	Sep 15, 2015	Jan 14, 2023	Results
2-Methylnaphthalene	ug/L	126	123	Sep 15, 2015	Nov 15, 2023	Results
Dibenzo(a,h)anthracene	ug/L	126	124	Sep 15, 2015	Jan 14, 2023	Results
1,3-Dichlorobenzene	ug/L	124	124	Sep 15, 2015	Nov 15, 2023	Results
Di-n-octyl Phthalate	ug/L	124	124	Sep 15, 2015	Jan 14, 2023	Results
4-Chloroaniline	ug/L	123	123	Sep 15, 2015	Jan 14, 2023	Results
Bis (2-Chloroethyl) Ether	ug/L	123	123	Sep 15, 2015	Jan 14, 2023	Results
Nitrobenzene	ug/L	123	123	Sep 15, 2015	Jan 14, 2023	Results
2-Methyl-4,6-Dinitrophenol	ug/L	117	117	Sep 15, 2015	Dec 14, 2021	Results
3-Methyl-4-Chlorophenol	ug/L	117	117	Sep 15, 2015	Dec 14, 2021	Results
Chromium, Total Recoverable	mg/L	116	10	Nov 20, 2016	Jan 09, 2023	Results
Enterococci MPN	MPN/100 mL	116	1	Jan 05, 2016	Sep 06, 2026	Results
2-Chlorophenol	ug/L	98	98	Sep 15, 2015	Sep 06, 2026	Results
E.coli	MPN/100 mL	97	4	Jan 05, 2016	Jan 29, 2021	Results
Zinc, Dissolved	mg/L	97	1	Jan 08, 2018	Sep 06, 2026	Results
Total Organic Carbon (TOC)	mg/L	76	0	Dec 23, 2021	Sep 06, 2026	Results
Zinc, Total	mg/L	76	1	Feb 22, 2020	Sep 06, 2026	Results
Copper, Total	mg/L	75	1	Dec 14, 2021	Sep 06, 2026	Results
Lead, Total	mg/L	75	4	Dec 14, 2021	Sep 06, 2026	Results
Chromium (VI)	ug/L	54	7	Jan 14, 2023	Sep 06, 2026	Results
Cadmium, Total	mg/L	49	28	Nov 15, 2023	Sep 06, 2026	Results
2-Chlorophenol-d4	ug/L	43	43	Nov 20, 2016	Dec 14, 2021	Results
Chromium (Total)	mg/L	35	10	Nov 15, 2023	Feb 16, 2026	Results
Mercury, Total Recoverable	ug/L	32	25	Nov 20, 2016	Dec 23, 2021	Results
Chromium, Total Recoverable	ug/L	28	4	Sep 15, 2015	Jan 14, 2023	Results
1-Methylnaphthalene	ug/L	25	23	Nov 08, 2022	Sep 06, 2026	Results
Mercury, Total	mg/L	22	17	Dec 21, 2015	Jan 14, 2023	Results
Pyridine	mg/L	21	19	Dec 11, 2022	Sep 06, 2026	Results
N-Nitrosodimethylamine	ug/L	19	19	Jan 14, 2023	Sep 06, 2026	Results
Fecal Coliform	MPN/100 mL	15	0	Dec 28, 2020	Feb 16, 2026	Results
4,6-Dinitro-2-methylphenol	mg/L	12	12	Nov 14, 2025	Sep 06, 2026	Results
Phenols, Total	mg/L	12	12	Nov 14, 2025	Sep 06, 2026	Results
Iron, Total Recoverable	ug/L	11	2	Nov 20, 2016	Dec 23, 2021	Results
E.coli	ppth	10	0	Sep 15, 2015	Dec 22, 2015	Results
Enterococci MPN	ppth	10	0	Sep 15, 2015	Dec 22, 2015	Results
pH	ppth	10	0	Sep 15, 2015	Dec 22, 2015	Results
Polynuclear Aromatic Hydrocarbons (PAHs)	ug/L	10	10	Dec 14, 2021	Dec 11, 2022	Results
Temperature	Degrees C	10	0	Feb 07, 2025	Feb 13, 2025	Results
2,6-Dichlorophenol	ug/L	9	9	Jan 14, 2023	Feb 16, 2026	Results
Chromium (III)	ug/L	9	0	Nov 14, 2025	Sep 06, 2026	Results
4,6-Dinitro-2-methylphenol	ug/L	6	6	Jan 14, 2023	Jan 14, 2023	Results
4-Chloro-3-methylphenol	ug/L	6	6	Jan 14, 2023	Jan 14, 2023	Results
Azobenzene	ug/L	6	6	Jan 14, 2023	Jan 14, 2023	Results
Iron, Total	mg/L	6	3	Dec 14, 2021	Nov 15, 2023	Results
Mercury, Total Recoverable	mg/L	6	4	Sep 15, 2015	Sep 15, 2015	Results
Phenols, Total	ug/L	6	6	Jan 14, 2023	Jan 14, 2023	Results
Pyridine	ug/L	6	6	Jan 14, 2023	Jan 14, 2023	Results
Iron, Dissolved	mg/L	4	4	Dec 14, 2021	Dec 23, 2021	Results
Iron, Total Recoverable	mg/L	4	0	Dec 22, 2015	Jan 14, 2023	Results
Total Coliform	MPN/100 mL	4	1	Sep 06, 2026	Sep 06, 2026	Results
Dichlorobenzenes, Sum	ug/L	3	3	Nov 20, 2016	Dec 14, 2021	Results
1,2,3-Trichlorobenzene	ug/L	2	2	Dec 14, 2021	Dec 14, 2021	Results
Sulfide, Total (as S)	ug/L	2	1	Dec 21, 2015	Jan 05, 2016	Results
Iron, Dissolved	ug/L	1	0	Sep 15, 2015	Sep 15, 2015	Results

2-Chlorophenol results (98 distinct rows, show all)

Reported monitoring results, newest first
Sample date	Parameter	Result	Units	Location type	Event	Method	Report
Sep 06, 2026	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1396487
Sep 06, 2026	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1396487
Sep 06, 2026	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1396487
Sep 06, 2026	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1396487
Feb 16, 2026	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1368202
Feb 16, 2026	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1368202
Feb 16, 2026	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1368202
Feb 16, 2026	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1368202
Nov 14, 2025	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1357866
Nov 14, 2025	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1357866
Nov 14, 2025	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1357866
Nov 14, 2025	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1357866
Nov 14, 2025	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1357866
Jan 14, 2023	2-Chlorophenol	ND .091	ug/L	Effluent	Qualifying Storm Event	E625SIM	1228503
Jan 14, 2023	2-Chlorophenol	ND .091	ug/L	Effluent	Qualifying Storm Event	E625SIM	1228503
Jan 14, 2023	2-Chlorophenol	ND .091	ug/L	Effluent	Qualifying Storm Event	E625SIM	1228503
Jan 14, 2023	2-Chlorophenol	ND .093	ug/L	Effluent	Qualifying Storm Event	E625SIM	1228503
Jan 14, 2023	2-Chlorophenol	ND .092	ug/L	Effluent	Qualifying Storm Event	E625SIM	1228503
Jan 14, 2023	2-Chlorophenol	ND .091	ug/L	Effluent	Qualifying Storm Event	E625SIM	1228503
Dec 14, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1175893
Dec 14, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1175893
Dec 14, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1175893
Dec 14, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1175893
Dec 14, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1175893
Jan 29, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1142205
Jan 28, 2021	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1142205
Jan 28, 2021	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1142205
Jan 28, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1142205
Jan 28, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1142205
Jan 28, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1142205
Jan 28, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1142205
Jan 23, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1142593
Jan 23, 2021	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1142593
Dec 28, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1138867
Dec 28, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1138867
Dec 28, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1138867
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Mar 12, 2020	2-Chlorophenol	ND	ug/L	Effluent	Qualifying Storm Event		1102748
Feb 22, 2020	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1101318
Feb 22, 2020	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1101318
Feb 22, 2020	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1101318
Feb 22, 2020	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1101318
Feb 22, 2020	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1101318
Feb 22, 2020	2-Chlorophenol	ND 0	ug/L	Effluent	Qualifying Storm Event		1101318

Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.

Compliance and enforcement records Evidence: SMARTS record

These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.

Compliance and enforcement records by type
Record type	Records	As published	Dates	Retrieved	List
Violations	1	1 Violation · 0 Potential (preliminary) · 0 Dismissed	Feb 14, 2024 – Feb 14, 2024	Oct 21, 2026	All violations
Enforcement actions	1	0 issued · 0 draft · 1 withdrawn, rescinded or superseded	Feb 14, 2024 – Feb 14, 2024	Oct 21, 2026	All actions
Inspections	1	inspections, not findings	Mar 20, 2024 – Mar 20, 2024	Oct 21, 2026	All inspections
Annual reports	11	certified reports (contents not shown)	2015 – 2025	Oct 21, 2026	All reports
Water-quality-based corrective action reports	0	reports, by parameter	—	Oct 21, 2026

Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.

Chronological record history (14 records, newest first)

Compliance and enforcement records, newest first
Date	Record	ID	Type or purpose	Status as published	Detail
Jul 14, 2026	Annual reports	1338080	Annual report 2025	—
Jul 14, 2025	Annual reports	1297053	Annual report 2024	—
Jul 15, 2024	Annual reports	1246271	Annual report 2023	—
Mar 20, 2024	Inspections	2063899	B Type compliance	Finalized	No Further Action
Feb 14, 2024	Enforcement actions	452949	NOV (Notice of Violation)	Withdrawn
Feb 14, 2024	Violations	888529	Late Report	Violation	Report
Jul 13, 2023	Annual reports	1192410	Annual report 2022	—
Jul 14, 2022	Annual reports	1116091	Annual report 2021	—
Jul 14, 2021	Annual reports	1064233	Annual report 2020	—
Jul 14, 2020	Annual reports	981201	Annual report 2019	—
Jul 14, 2019	Annual reports	957495	Annual report 2018	—
Jul 12, 2018	Annual reports	942933	Annual report 2017	—
Jul 13, 2017	Annual reports	882439	Annual report 2016	—
Jul 11, 2016	Annual reports	845378	Annual report 2015	—

Sources and provenance

Sources behind this page
Information	Source	Retrieved or published
Permit, location, receiving-water text	SMARTS Industrial Application Specific Data	Oct 20, 2026
Permit history	SMARTS Storm Water Applications	Oct 20, 2026
Monitoring results	SMARTS Industrial Parameter Data	Oct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)	USGS	2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)	SWRCB	2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)	SWRCB GIS	2026-10-22
SMARTS TMDL requirements	SMARTS	2026-10-21

Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.

How to read the evidence labels

Evidence: SMARTS record Evidence: facility-reported Information as published in SMARTS or reported by the discharger.
Evidence: identification corroborated The reported receiving-water name identifies one official waterbody and the facility's location is consistent with it. It does not establish a discharge pathway.
Evidence: candidate, awaiting review Evidence: not confirmed The reported name could match one or more official waterbodies, but no identification has been confirmed; nothing is assigned without review.
Evidence: spatial Evidence: geographic proximity Derived from the reported location only.
Evidence: SMARTS-reported Source records whose links to official references are not yet reviewed.
Evidence: unavailable The information could not be loaded or is not in the sources.

Records are shown as published and are not compliance determinations. How geographic context is derived.