Main St Auto Dismantlers Inc

Terminated WDID 4 19I022570 Rosewood, Los Angeles County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record
Terminated Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Rosewood, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
LA 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
None
Monitoring results Evidence: facility-reported
65 distinct results, 5 reporting years (2018 to 2023)
Most recent sample Feb 05, 2024 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 5 violation records · 5 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
3 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
33.89103, -118.27611
Precision
5 decimal places
Shared point
7 permits report this exact point
Matches application record
same

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

Facility address
15503 S Main St, Rosewood 90248
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
Terminated
Operator
Main St Auto Dismantlers Inc
Primary industry (SIC)
5015-Motor Vehicle Parts, Used
Application ID
402718
NOI processed
Mar 24, 2010
Termination effective
Jun 03, 2026
Last certified
Jul 13, 2015
Facility size
1 Acres
Impervious area
100 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
402718 IndustrialTerminatedMar 24, 2010 Jun 03, 2026Jul 13, 2015

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

Receiving water

Reported by the facility Evidence: facility-reported
LA 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.

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
TMDLWaterbody (as reported)ParameterLimitTypePeriodDueDischarges to TMDL water
R4 - Los Angeles and Long Beach Harbor Waters TMDLDominguez Channel EstuaryCopper, Total .0058 mg/LTMDL NAL instantaneous FINAL2032-05-05Y
R4 - Los Angeles and Long Beach Harbor Waters TMDLDominguez Channel EstuaryLead, Total .221 mg/LTMDL NAL instantaneous FINAL2032-05-05Y
R4 - Los Angeles and Long Beach Harbor Waters TMDLDominguez Channel EstuaryZinc, Total .095 mg/LTMDL NAL instantaneous FINAL2032-05-05Y

3 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.

65 distinct measurements across 9 parameters, most recent sample Feb 05, 2024.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
202399 0 Feb 05, 2024Feb 05, 2024
2022168 0 Nov 08, 2022Dec 27, 2022
2021168 0 Dec 14, 2021Dec 25, 2021
2019126 0 Dec 04, 2019Mar 12, 2020
2018126 0 Nov 29, 2018Jan 31, 2019

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Aluminum, Totalmg/L9 0Nov 29, 2018Feb 05, 2024 Results
Iron, Totalmg/L9 0Nov 29, 2018Feb 05, 2024 Results
Lead, Totalmg/L9 0Nov 29, 2018Feb 05, 2024 Results
Oil and Greasemg/L9 3Nov 29, 2018Feb 05, 2024 Results
pHSU9 0Nov 29, 2018Feb 05, 2024 Results
Total Suspended Solids (TSS)mg/L9 1Nov 29, 2018Feb 05, 2024 Results
Copper, Totalmg/L5 0Dec 14, 2021Feb 05, 2024 Results
Zinc, Totalmg/L5 0Dec 14, 2021Feb 05, 2024 Results
Cadmium, Totalmg/L1 1Feb 05, 2024Feb 05, 2024 Results

All results (65 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 05, 2024 Aluminum, Total .0316 mg/L Effluent Qualifying Storm Event E200.8 1285753
Feb 05, 2024 Cadmium, Total < .0002 mg/L Effluent Qualifying Storm Event E200.8 1285753
Feb 05, 2024 Copper, Total .0044 mg/L Effluent Qualifying Storm Event E200.8 1285753
Feb 05, 2024 Iron, Total .07 mg/L Effluent Qualifying Storm Event E200.7 1285753
Feb 05, 2024 Lead, Total .0013 mg/L Effluent Qualifying Storm Event E200.8 1285753
Feb 05, 2024 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1285753
Feb 05, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1285753
Feb 05, 2024 Total Suspended Solids (TSS) 2 mg/L Effluent Qualifying Storm Event A2540D 1285753
Feb 05, 2024 Zinc, Total .158 mg/L Effluent Qualifying Storm Event E200.8 1285753
Dec 27, 2022 Aluminum, Total .0894 mg/L Effluent Qualifying Storm Event E200.8 1221059
Dec 27, 2022 Copper, Total .0016 mg/L Effluent Qualifying Storm Event E200.8 1221059
Dec 27, 2022 Iron, Total .09 mg/L Effluent Qualifying Storm Event E200.7 1221059
Dec 27, 2022 Lead, Total .001 mg/L Effluent Qualifying Storm Event E200.8 1221059
Dec 27, 2022 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1221059
Dec 27, 2022 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1221059
Dec 27, 2022 Total Suspended Solids (TSS) < .4 mg/L Effluent Qualifying Storm Event A2540D 1221059
Dec 27, 2022 Zinc, Total .243 mg/L Effluent Qualifying Storm Event E200.8 1221059
Nov 08, 2022 Aluminum, Total .0798 mg/L Effluent Qualifying Storm Event E200.8 1220880
Nov 08, 2022 Copper, Total .011 mg/L Effluent Qualifying Storm Event E200.8 1220880
Nov 08, 2022 Iron, Total .21 mg/L Effluent Qualifying Storm Event E200.7 1220880
Nov 08, 2022 Lead, Total .0059 mg/L Effluent Qualifying Storm Event E200.8 1220880
Nov 08, 2022 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1220880
Nov 08, 2022 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1220880
Nov 08, 2022 Total Suspended Solids (TSS) 48 mg/L Effluent Qualifying Storm Event A2540D 1220880
Nov 08, 2022 Zinc, Total .877 mg/L Effluent Qualifying Storm Event E200.8 1220880
Dec 25, 2021 Aluminum, Total .031 mg/L Effluent Qualifying Storm Event E200.8 1178335
Dec 25, 2021 Copper, Total .0082 mg/L Effluent Qualifying Storm Event E200.8 1178335
Dec 25, 2021 Iron, Total .01 mg/L Effluent Qualifying Storm Event E200.7 1178335
Dec 25, 2021 Lead, Total .0002 mg/L Effluent Qualifying Storm Event E200.8 1178335
Dec 25, 2021 Oil and Grease 9 mg/L Effluent Qualifying Storm Event E1664A 1178335
Dec 25, 2021 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1178335
Dec 25, 2021 Total Suspended Solids (TSS) 65 mg/L Effluent Qualifying Storm Event A2540D 1178335
Dec 25, 2021 Zinc, Total .015 mg/L Effluent Qualifying Storm Event E200.8 1178335
Dec 14, 2021 Aluminum, Total 2.4 mg/L Effluent Qualifying Storm Event E200.8 1176580
Dec 14, 2021 Copper, Total .054 mg/L Effluent Qualifying Storm Event E200.8 1176580
Dec 14, 2021 Iron, Total 5.34 mg/L Effluent Qualifying Storm Event E200.7 1176580
Dec 14, 2021 Lead, Total .052 mg/L Effluent Qualifying Storm Event E200.8 1176580
Dec 14, 2021 Oil and Grease 1 mg/L Effluent Qualifying Storm Event E1664A 1176580
Dec 14, 2021 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1176580
Dec 14, 2021 Total Suspended Solids (TSS) 1 mg/L Effluent Qualifying Storm Event A2540D 1176580
Dec 14, 2021 Zinc, Total .59 mg/L Effluent Qualifying Storm Event E200.8 1176580
Mar 12, 2020 Aluminum, Total .141 mg/L Effluent Qualifying Storm Event E200.8 1106506
Mar 12, 2020 Iron, Total .368 mg/L Effluent Qualifying Storm Event E200.7 1106506
Mar 12, 2020 Lead, Total .0106 mg/L Effluent Qualifying Storm Event E200.8 1106506
Mar 12, 2020 Oil and Grease 21.7 mg/L Effluent Qualifying Storm Event E1664B 1106506
Mar 12, 2020 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1106506
Mar 12, 2020 Total Suspended Solids (TSS) 153 mg/L Effluent Qualifying Storm Event A2540D 1106506
Dec 04, 2019 Aluminum, Total .999 mg/L Effluent Qualifying Storm Event E200.8 1102248
Dec 04, 2019 Iron, Total 1.69 mg/L Effluent Qualifying Storm Event E200.7 1102248
Dec 04, 2019 Lead, Total .0277 mg/L Effluent Qualifying Storm Event E200.8 1102248

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 Oct 01, 2013 – Feb 21, 2024 Oct 21, 2026 All violations
Enforcement actions5 5 issued · 0 draft · 0 withdrawn, rescinded or superseded Jan 09, 2018 – Feb 21, 2024 Oct 21, 2026 All actions
Inspections1inspections, not findings Mar 29, 2018 – Mar 29, 2018 Oct 21, 2026 All inspections
Annual reports11certified 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 (22 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jun 03, 2026 Annual reports 1337589 Annual report 2025 —
Jul 01, 2025 Annual reports 1296510 Annual report 2024 —
Jul 02, 2024 Annual reports 1245720 Annual report 2023 —
Feb 21, 2024 Enforcement actions 452984 NOV (Notice of Violation) Historical
Feb 21, 2024 Enforcement actions 452995 NOV (Notice of Violation) Historical
Feb 21, 2024 Violations 888567 Late Report ViolationReport
Feb 21, 2024 Violations 888578 Late Report ViolationReport
Jun 23, 2023 Annual reports 1191839 Annual report 2022 —
Feb 06, 2023 Enforcement actions 449424 NOV (Notice of Violation) Historical
Feb 06, 2023 Violations 884483 Late Report ViolationReport
Feb 01, 2023 Enforcement actions 449338 NOV (Notice of Violation) Historical
Feb 01, 2023 Violations 884381 Late Report ViolationReport
Jul 05, 2022 Annual reports 1115442 Annual report 2021 —
Jun 30, 2021 Annual reports 1063542 Annual report 2020 —
Jun 24, 2020 Annual reports 980442 Annual report 2019 —
Jun 18, 2019 Annual reports 956708 Annual report 2018 —
Jul 03, 2018 Annual reports 942137 Annual report 2017 —
Mar 29, 2018 Inspections 2038007 B Type compliance —No Further Action
Jan 09, 2018 Enforcement actions 428458 NOV (Notice of Violation) Historical
Jul 01, 2017 Annual reports 881557 Annual report 2016 —
Aug 05, 2016 Annual reports 842578 Annual report 2015 —
Oct 01, 2013 Violations 865536 Deficient Report ViolationReport

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.