Four Star Chemical

Active WDID 4 19I011284 Los Angeles, 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
Los Angeles, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
L A River (as reported by the facility)
Evidence: not confirmed 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
1 waterbody; 1 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
75 distinct results, 8 reporting years (2016 to 2025)
Most recent sample Feb 16, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
2 inspections · 5 violation records · 4 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 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
34.01343, -118.21601
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
3137 E 26th St, Los Angeles 90023
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Chavez Ravine-Los Angeles River HUC12 180701050401

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
Four Star Chemical
Primary industry (SIC)
2869-Industrial Organic Chemicals, NEC
Application ID
190107
NOI processed
Nov 22, 1994
Last certified
May 28, 2026
Facility size
3 Acres

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
190107 IndustrialActiveNov 22, 1994 —May 28, 2026

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

Receiving water

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

Evidence: not confirmed Not matchable to a single waterbody

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

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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Los Angeles River Reach 2 (Carson to Figueroa Street) CAR4051501019990202085021493 m listed9

Waterbodies within 1.0 km of the reported facility location. Method proximity/1.

SMARTS TMDL records Evidence: SMARTS-reported

No TMDL records for this facility in the SMARTS TMDL export.

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.

75 distinct measurements across 6 parameters, most recent sample Feb 16, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025105 0 Jan 22, 2026Feb 16, 2026
202455 0 Mar 13, 2025Mar 13, 2025
2023105 0 Dec 20, 2023Jan 22, 2024
2022255 0 Nov 08, 2022Jan 10, 2023
202155 0 Dec 14, 2021Dec 14, 2021
201944 0 Nov 20, 2019Nov 20, 2019
2017116 0 Jan 08, 2018Mar 21, 2018
201655 0 Jan 05, 2017Jan 05, 2017

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L15 1Jan 05, 2017Feb 16, 2026 Results
Total Organic Carbon (TOC)mg/L15 9Jan 05, 2017Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L15 0Jan 05, 2017Feb 16, 2026 Results
pHSU14 6Jan 05, 2017Feb 16, 2026 Results
Lead, Totalmg/L13 0Mar 21, 2018Feb 16, 2026 Results
Electrical Conductivity @ 25 Deg. Cumhos/cm3 0Jan 05, 2017Mar 21, 2018 Results

All results (75 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Lead, Total .0187 mg/L Effluent Qualifying Storm Event E200.8 1373911
Feb 16, 2026 Oil and Grease 8.2 mg/L Effluent Qualifying Storm Event E1664B 1373911
Feb 16, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1373911
Feb 16, 2026 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1373911
Feb 16, 2026 Total Suspended Solids (TSS) 4.8 mg/L Effluent Qualifying Storm Event A2540D 1373911
Jan 22, 2026 Lead, Total .019 mg/L Effluent Qualifying Storm Event E200.8 1373669
Jan 22, 2026 Oil and Grease 15.2 mg/L Effluent Qualifying Storm Event E1664B 1373669
Jan 22, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1373669
Jan 22, 2026 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1373669
Jan 22, 2026 Total Suspended Solids (TSS) 20.2 mg/L Effluent Qualifying Storm Event A2540D 1373669
Mar 13, 2025 Lead, Total .00182 mg/L Effluent Qualifying Storm Event E200.8 1329818
Mar 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1329818
Mar 13, 2025 pH 6.5 SU Effluent Qualifying Storm Event pH_Paper 1329818
Mar 13, 2025 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1329818
Mar 13, 2025 Total Suspended Solids (TSS) 4.4 mg/L Effluent Qualifying Storm Event A2540D 1329818
Jan 22, 2024 Lead, Total .0457 mg/L Effluent Qualifying Storm Event E200.8 1290365
Jan 22, 2024 Oil and Grease 3.5 mg/L Effluent Qualifying Storm Event E1664B 1290365
Jan 22, 2024 pH ND SU Effluent Qualifying Storm Event pH_Field 1290365
Jan 22, 2024 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1290365
Jan 22, 2024 Total Suspended Solids (TSS) 8.3 mg/L Effluent Qualifying Storm Event A2540D 1290365
Dec 20, 2023 Lead, Total .012 mg/L Effluent Qualifying Storm Event E200.8 1290365
Dec 20, 2023 Oil and Grease 3.8 mg/L Effluent Qualifying Storm Event E1664B 1290365
Dec 20, 2023 pH ND SU Effluent Qualifying Storm Event pH_Field 1290365
Dec 20, 2023 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1290365
Dec 20, 2023 Total Suspended Solids (TSS) 36.8 mg/L Effluent Qualifying Storm Event A2540D 1290365
Jan 10, 2023 Lead, Total .00366 mg/L Effluent Qualifying Storm Event E200.8 1251980
Jan 10, 2023 Lead, Total .00304 mg/L Effluent Qualifying Storm Event E200.8 1251980
Jan 10, 2023 Oil and Grease 2.7 mg/L Effluent Qualifying Storm Event E1664B 1251980
Jan 10, 2023 Oil and Grease 1.6 mg/L Effluent Qualifying Storm Event E1664B 1251980
Jan 10, 2023 pH 0 SU Effluent Qualifying Storm Event pH_Field 1251980
Jan 10, 2023 pH ND SU Effluent Qualifying Storm Event pH_Field 1251980
Jan 10, 2023 Total Organic Carbon (TOC) 0 mg/L Effluent Qualifying Storm Event A5310B 1251980
Jan 10, 2023 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1251980
Jan 10, 2023 Total Suspended Solids (TSS) 8.6 mg/L Effluent Qualifying Storm Event A2540D 1251980
Jan 10, 2023 Total Suspended Solids (TSS) 6.5 mg/L Effluent Qualifying Storm Event A2540D 1251980
Dec 12, 2022 Lead, Total .00699 mg/L Effluent Qualifying Storm Event E200.8 1251980
Dec 12, 2022 Lead, Total .0105 mg/L Effluent Qualifying Storm Event E200.8 1251980
Dec 12, 2022 Oil and Grease 5.1 mg/L Effluent Qualifying Storm Event E1664B 1251980
Dec 12, 2022 Oil and Grease 4.5 mg/L Effluent Qualifying Storm Event E1664B 1251980
Dec 12, 2022 pH ND SU Effluent Qualifying Storm Event pH_Field 1251980
Dec 12, 2022 pH ND SU Effluent Qualifying Storm Event pH_Field 1251980
Dec 12, 2022 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1251980
Dec 12, 2022 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1251980
Dec 12, 2022 Total Suspended Solids (TSS) 27.3 mg/L Effluent Qualifying Storm Event A2540D 1251980
Dec 12, 2022 Total Suspended Solids (TSS) 28.8 mg/L Effluent Qualifying Storm Event A2540D 1251980
Nov 08, 2022 Lead, Total .00969 mg/L Effluent Qualifying Storm Event E200.8 1251980
Nov 08, 2022 Oil and Grease 1.4 mg/L Effluent Qualifying Storm Event E1664B 1251980
Nov 08, 2022 pH ND SU Effluent Qualifying Storm Event pH_Field 1251980
Nov 08, 2022 Total Organic Carbon (TOC) ND mg/L Effluent Qualifying Storm Event A5310B 1251980
Nov 08, 2022 Total Suspended Solids (TSS) 37.2 mg/L Effluent Qualifying Storm Event A2540D 1251980

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 typeRecordsAs publishedDatesRetrievedList
Violations5 5 Violation · 0 Potential (preliminary) · 0 Dismissed Jul 02, 2013 – May 19, 2026 Oct 21, 2026 All violations
Enforcement actions4 4 issued · 0 draft · 0 withdrawn, rescinded or superseded Apr 06, 2015 – May 19, 2026 Oct 21, 2026 All actions
Inspections2inspections, not findings Mar 06, 2001 – Jun 13, 2016 Oct 21, 2026 All inspections
Annual reports7certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, 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 (18 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 08, 2026 Annual reports 1337077 Annual report 2025 —
May 19, 2026 Enforcement actions 469934 ACL (Administrative Civil Liability) HistoricalR4-2026-0050
May 19, 2026 Violations 904009 Late Report ViolationReport
Jun 18, 2025 Annual reports 1295969 Annual report 2024 —
Jul 10, 2024 Enforcement actions 453658 ACL (Administrative Civil Liability) HistoricalR4-2024-0268
Jul 10, 2024 Violations 889354 Late Report ViolationReport
Aug 10, 2023 Annual reports 1191239 Annual report 2022 —
Aug 04, 2021 Annual reports 1070885 Annual report 2020 —
Jul 12, 2019 Annual reports 955947 Annual report 2018 —
Jul 02, 2018 Annual reports 941370 Annual report 2017 —
Sep 02, 2016 Annual reports 848111 Annual report 2015 —
Jul 29, 2016 Enforcement actions 423486 NOV (Notice of Violation) Historical
Jun 13, 2016 Inspections 2030486 B Type compliance —No Further Action
Jun 13, 2016 Violations 860665 Incomplete/Insufficient SWPPP ViolationInspection
Apr 06, 2015 Enforcement actions 418704 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Jul 02, 2014 Violations 856942 Late Report ViolationReport
Jul 02, 2013 Violations 856941 Late Report ViolationReport
Mar 06, 2001 Inspections 1732766 B Type compliance —

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

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

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