A B C Sch Dist Trans

Active WDID 4 19I001477 Artesia, 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
Artesia, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
COYOTE CREEK (as reported by the facility)
Evidence: identification corroborated Coyote Creek Details
Identified receiving water on the 2026 303(d) list
Yes · 8 Appendix A decisions, category 5 Evidence: State-published
Describes the waterbody, not this facility · Waterbody profile
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
None
Monitoring results Evidence: facility-reported
185 distinct results, 10 reporting years (2016 to 2025)
Most recent sample Nov 20, 2025 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 4 violation records · 4 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
1 record
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
33.86941, -118.08049
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
11865 178th St, Artesia 90701
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Coyote Creek-San Gabriel River HUC12 180701060606

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
ABC Unified School District
Primary industry (SIC)
4151-School Buses
Application ID
188811
NOI processed
Mar 27, 1992
Last certified
Jul 05, 2018
Facility size
5 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
188811 IndustrialActiveMar 27, 1992 —Jul 05, 2018

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

Receiving water

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

Evidence: identification corroborated Coyote Creek CAR4051501019980917123914

Receiving water reported by facility — waterbody identification corroborated by geographic evidence.

Nearest distance from the reported facility location: 3.2 km. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

Coyote Creek is on the 2026 Clean Water Act section 303(d) list (8 Appendix A decisions; category 5).

2026 Appendix A decisions for the identified receiving water
PollutantCategoryListing decisionTMDL requirementDecision ID
Aluminum5List on 303(d) list (TMDL required list) 5A153901
Chlorine5List on 303(d) list (TMDL required list) 5A132541
Copper, Dissolved5Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) 5B · San Gabriel River Metals (39)68259
Indicator Bacteria5Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) 5B · San Gabriel River Coliform (45)150537
Iron5Do Not Delist from 303(d) list (TMDL required list) 5A132554
Malathion5Do Not Delist from 303(d) list (TMDL required list) 5A132557
pH5Do Not Delist from 303(d) list (TMDL required list) 5A132566
Toxicity5Do Not Delist from 303(d) list (TMDL required list) 5A132573

Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. State Board adoption 2026-02-03; USEPA approval not confirmed. A listing describes the waterbody, not this facility. Waterbody profile.

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 - San Gabriel River Metals and Selenium TMDLR4 - Coyote Creek and its tributary/iesZinc, Total .158 mg/LNEL instantaneous FINAL2020-07-01Y

1 record. 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.

185 distinct measurements across 4 parameters, most recent sample Nov 20, 2025.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025174 0 Oct 14, 2025Nov 20, 2025
202484 0 Feb 13, 2025Feb 13, 2025
2023164 0 Jan 03, 2024Mar 06, 2024
2022374 0 Oct 17, 2022Mar 14, 2023
2021134 0 Dec 14, 2021Jun 22, 2022
2020244 0 Jan 29, 2021Mar 10, 2021
2019343 0 Nov 20, 2019Apr 09, 2020
2018183 0 Dec 06, 2018May 16, 2019
2017123 0 Mar 22, 2018Apr 19, 2018
201663 0 Dec 21, 2016Dec 21, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Total Suspended Solids (TSS)mg/L49 3Dec 21, 2016Nov 20, 2025 Results
pHSU46 0Dec 21, 2016Nov 20, 2025 Results
Zinc, Totalmg/L46 0Jan 29, 2021Nov 20, 2025 Results
Oil and Greasemg/L44 26Dec 21, 2016Nov 20, 2025 Results

All results (185 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Nov 20, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1363464
Nov 20, 2025 Oil and Grease 1.4 mg/L Effluent Qualifying Storm Event E1664A 1363464
Nov 20, 2025 pH 7.6 SU Effluent Qualifying Storm Event pH_Field 1363464
Nov 20, 2025 pH 7.6 SU Effluent Qualifying Storm Event pH_Field 1363464
Nov 20, 2025 Total Suspended Solids (TSS) 5.3 mg/L Effluent Qualifying Storm Event A2540D 1363464
Nov 20, 2025 Total Suspended Solids (TSS) 16.6 mg/L Effluent Qualifying Storm Event A2540D 1363464
Nov 20, 2025 Zinc, Total .00841 mg/L Internal Qualifying Storm Event E200.8 1363462
Nov 20, 2025 Zinc, Total .126 mg/L Effluent Qualifying Storm Event E200.8 1363464
Nov 20, 2025 Zinc, Total .113 mg/L Effluent Qualifying Storm Event E200.8 1363464
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1363420
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1363420
Oct 14, 2025 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1363420
Oct 14, 2025 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1363420
Oct 14, 2025 Total Suspended Solids (TSS) 8.2 mg/L Effluent Qualifying Storm Event A2540D 1363420
Oct 14, 2025 Total Suspended Solids (TSS) 16.3 mg/L Effluent Qualifying Storm Event A2540D 1363420
Oct 14, 2025 Zinc, Total .131 mg/L Effluent Qualifying Storm Event E200.8 1363420
Oct 14, 2025 Zinc, Total .272 mg/L Effluent Qualifying Storm Event E200.8 1363420
Feb 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1330702
Feb 13, 2025 Oil and Grease 8.29 mg/L Effluent Qualifying Storm Event E1664A 1330702
Feb 13, 2025 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1330702
Feb 13, 2025 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1330702
Feb 13, 2025 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1330702
Feb 13, 2025 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1330702
Feb 13, 2025 Zinc, Total .183 mg/L Effluent Qualifying Storm Event E200.8 1330702
Feb 13, 2025 Zinc, Total .189 mg/L Effluent Qualifying Storm Event E200.8 1330702
Mar 06, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1284235
Mar 06, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1284235
Mar 06, 2024 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1284235
Mar 06, 2024 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1284235
Mar 06, 2024 Total Suspended Solids (TSS) 2 mg/L Effluent Qualifying Storm Event A2540D 1284235
Mar 06, 2024 Total Suspended Solids (TSS) .93 mg/L Effluent Qualifying Storm Event A2540D 1284235
Mar 06, 2024 Zinc, Total .174 mg/L Effluent Qualifying Storm Event E200.8 1284235
Mar 06, 2024 Zinc, Total .17 mg/L Effluent Qualifying Storm Event E200.8 1284235
Jan 03, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1276101
Jan 03, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1276101
Jan 03, 2024 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1276101
Jan 03, 2024 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1276101
Jan 03, 2024 Total Suspended Solids (TSS) 3.1 mg/L Effluent Qualifying Storm Event A2540D 1276101
Jan 03, 2024 Total Suspended Solids (TSS) 3.3 mg/L Effluent Qualifying Storm Event A2540D 1276101
Jan 03, 2024 Zinc, Total .0463 mg/L Effluent Qualifying Storm Event E200.8 1276101
Jan 03, 2024 Zinc, Total .0767 mg/L Effluent Qualifying Storm Event E200.8 1276101
Mar 14, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1235633
Mar 14, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1235633
Mar 14, 2023 pH 6.7 SU Effluent Qualifying Storm Event pH_Field 1235633
Mar 14, 2023 pH 7.6 SU Effluent Qualifying Storm Event pH_Field 1235633
Mar 14, 2023 Total Suspended Solids (TSS) 4.6 mg/L Effluent Qualifying Storm Event A2540D 1235633
Mar 14, 2023 Total Suspended Solids (TSS) 4.9 mg/L Effluent Qualifying Storm Event A2540D 1235633
Mar 14, 2023 Zinc, Total .023 mg/L Effluent Qualifying Storm Event E200.8 1235633
Mar 14, 2023 Zinc, Total .0234 mg/L Effluent Qualifying Storm Event E200.8 1235633
Mar 14, 2023 Zinc, Total .0124 mg/L Internal Qualifying Storm Event E200.8 1236567

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
Violations4 4 Violation · 0 Potential (preliminary) · 0 Dismissed Jul 01, 2016 – Sep 21, 2026 Oct 21, 2026 All violations
Enforcement actions4 4 issued · 0 draft · 0 withdrawn, rescinded or superseded May 08, 2017 – Sep 21, 2026 Oct 21, 2026 All actions
Inspections1inspections, not findings Oct 30, 2015 – Oct 30, 2015 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports3reports, by parameter 2021-22 – 2024-25 Oct 21, 2026 All reports

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 (23 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Sep 21, 2026 Enforcement actions 473340 EPL (Expedited Payment Letter) ActiveR4-2026-0248
Sep 21, 2026 Violations 907279 Late Report ViolationReport
Jul 15, 2026 Annual reports 1337373 Annual report 2025 —
Apr 08, 2026 Water-quality-based corrective action reports 1370965 WQBCAR 2024-25 —Zinc, Total
Oct 30, 2025 Water-quality-based corrective action reports 1288337 WQBCAR 2023-24 —Zinc, Total
Jul 15, 2025 Annual reports 1296287 Annual report 2024 —
Jul 15, 2024 Annual reports 1245489 Annual report 2023 —
Jul 11, 2023 Annual reports 1191600 Annual report 2022 —
Jul 15, 2022 Annual reports 1115180 Annual report 2021 —
May 24, 2022 Water-quality-based corrective action reports 1183057 WQBCAR 2021-22 —Zinc, Total
Mar 30, 2022 Enforcement actions 446401 ACL (Administrative Civil Liability) HistoricalR4-2022-0038
Mar 30, 2022 Violations 881595 Effluent ViolationReport
Jul 13, 2021 Annual reports 1063274 Annual report 2020 —
May 21, 2021 Enforcement actions 440812 NOV (Notice of Violation) Historical
May 21, 2021 Violations 877034 Incomplete/Insufficient SWPPP ViolationReport
Jul 14, 2020 Annual reports 980156 Annual report 2019 —
Jun 17, 2019 Annual reports 956412 Annual report 2018 —
Jul 13, 2018 Annual reports 941840 Annual report 2017 —
Jun 29, 2017 Annual reports 881245 Annual report 2016 —
May 08, 2017 Enforcement actions 426110 NOV (Notice of Violation) Historical
Jul 01, 2016 Annual reports 847211 Annual report 2015 —
Jul 01, 2016 Violations 863300 Deficient Report ViolationReport
Oct 30, 2015 Inspections 2027407 B Type compliance —Follow-up Inspection Needed

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.