San Jose Creek Water Reclamation Plant

Active WDID 4 19I007150 Whittier, 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
Whittier, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
San Gabriel River Reach 3 (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
2 waterbodies; 2 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
297 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Oct 14, 2025 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 2 violation records · 1 enforcement action
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
34.0338, -118.0231
Precision
4 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
1965 Workman Mill, Whittier 90601
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
Sanitation Districts of Los Angeles County
Primary industry (SIC)
4952-Sewerage Systems
Application ID
189685
NOI processed
Jun 04, 1992
Last certified
Aug 16, 2019
Facility size
40.7 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
189685 IndustrialActiveJun 04, 1992 —Aug 16, 2019

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

Receiving water

Reported by the facility Evidence: facility-reported
San Gabriel River Reach 3
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

1 official waterbody shares 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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
San Jose Creek Reach 1 (SG Confluence to Temple St.) CAR4053100019980918090950280 m listed5
San Gabriel River Reach 3 (Whittier Narrows to Ramona) CAR4053100019980917153706626 m listed2

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.

297 distinct measurements across 3 parameters, most recent sample Oct 14, 2025.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025183 0 Oct 14, 2025Oct 14, 2025
2024183 0 Feb 13, 2025Feb 13, 2025
2023183 0 Aug 20, 2023Jan 22, 2024
2022183 0 Nov 08, 2022Dec 27, 2022
2021353 0 Oct 25, 2021Mar 28, 2022
2020163 0 Dec 28, 2020Mar 10, 2021
2019423 0 Nov 20, 2019Dec 04, 2019
2018393 0 Nov 29, 2018Jan 14, 2019
2017213 0 Jan 09, 2018Jan 09, 2018
2016363 0 Nov 26, 2016Jan 11, 2017
2015363 0 Sep 15, 2015Jan 05, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Total Suspended Solids (TSS)mg/L102 6Sep 15, 2015Oct 14, 2025 Results
pHSU101 0Sep 15, 2015Oct 14, 2025 Results
Oil and Greasemg/L94 81Sep 15, 2015Oct 14, 2025 Results

All results (297 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Oct 14, 2025 Oil and Grease DNQ 6.7 mg/L Effluent Qualifying Storm Event E1664B 1359662
Oct 14, 2025 Oil and Grease 14.5 mg/L Effluent Qualifying Storm Event E1664B 1359662
Oct 14, 2025 Oil and Grease 8.2 mg/L Effluent Qualifying Storm Event E1664B 1359662
Oct 14, 2025 Oil and Grease < 10 mg/L Effluent Qualifying Storm Event E1664B 1359662
Oct 14, 2025 Oil and Grease DNQ 2.9 mg/L Effluent Qualifying Storm Event E1664B 1359662
Oct 14, 2025 Oil and Grease 7 mg/L Effluent Qualifying Storm Event E1664B 1359662
Oct 14, 2025 pH 6.9 SU Effluent Qualifying Storm Event pH_Field 1359662
Oct 14, 2025 pH 6.7 SU Effluent Qualifying Storm Event pH_Field 1359662
Oct 14, 2025 pH 7.78 SU Effluent Qualifying Storm Event pH_Field 1359662
Oct 14, 2025 pH 8 SU Effluent Qualifying Storm Event pH_Field 1359662
Oct 14, 2025 pH 8.04 SU Effluent Qualifying Storm Event pH_Field 1359662
Oct 14, 2025 pH 8.36 SU Effluent Qualifying Storm Event pH_Field 1359662
Oct 14, 2025 Total Suspended Solids (TSS) 108 mg/L Effluent Qualifying Storm Event A2540D 1359662
Oct 14, 2025 Total Suspended Solids (TSS) 18.5 mg/L Effluent Qualifying Storm Event A2540D 1359662
Oct 14, 2025 Total Suspended Solids (TSS) 33 mg/L Effluent Qualifying Storm Event A2540D 1359662
Oct 14, 2025 Total Suspended Solids (TSS) 7.6 mg/L Effluent Qualifying Storm Event A2540D 1359662
Oct 14, 2025 Total Suspended Solids (TSS) 25.7 mg/L Effluent Qualifying Storm Event A2540D 1359662
Oct 14, 2025 Total Suspended Solids (TSS) 7.8 mg/L Effluent Qualifying Storm Event A2540D 1359662
Feb 13, 2025 Oil and Grease < 7.4 mg/L Effluent Qualifying Storm Event E1664B 1326945
Feb 13, 2025 Oil and Grease DNQ 2.7 mg/L Effluent Qualifying Storm Event E1664B 1326945
Feb 13, 2025 Oil and Grease < 6.7 mg/L Effluent Qualifying Storm Event E1664B 1326945
Feb 13, 2025 Oil and Grease < 7.4 mg/L Effluent Qualifying Storm Event E1664B 1326945
Feb 13, 2025 Oil and Grease < 6.1 mg/L Effluent Qualifying Storm Event E1664B 1326945
Feb 13, 2025 Oil and Grease < 6.7 mg/L Effluent Qualifying Storm Event E1664B 1326945
Feb 13, 2025 pH 8.15 SU Effluent Qualifying Storm Event pH_Field 1326945
Feb 13, 2025 pH 7.81 SU Effluent Qualifying Storm Event pH_Field 1326945
Feb 13, 2025 pH 7.87 SU Effluent Qualifying Storm Event pH_Field 1326945
Feb 13, 2025 pH 7.89 SU Effluent Qualifying Storm Event pH_Field 1326945
Feb 13, 2025 pH 6.2 SU Effluent Qualifying Storm Event pH_Field 1326945
Feb 13, 2025 pH 6.1 SU Effluent Qualifying Storm Event pH_Field 1326945
Feb 13, 2025 Total Suspended Solids (TSS) 73.9 mg/L Effluent Qualifying Storm Event A2540D 1326945
Feb 13, 2025 Total Suspended Solids (TSS) 202 mg/L Effluent Qualifying Storm Event A2540D 1326945
Feb 13, 2025 Total Suspended Solids (TSS) 84.4 mg/L Effluent Qualifying Storm Event A2540D 1326945
Feb 13, 2025 Total Suspended Solids (TSS) 32.5 mg/L Effluent Qualifying Storm Event A2540D 1326945
Feb 13, 2025 Total Suspended Solids (TSS) 22.4 mg/L Effluent Qualifying Storm Event A2540D 1326945
Feb 13, 2025 Total Suspended Solids (TSS) 162 mg/L Effluent Qualifying Storm Event A2540D 1326945
Jan 22, 2024 Oil and Grease DNQ 3.8 mg/L Effluent Qualifying Storm Event E1664B 1280604
Jan 22, 2024 pH 8.55 SU Effluent Qualifying Storm Event pH_Field 1280604
Jan 22, 2024 Total Suspended Solids (TSS) < 2.5 mg/L Effluent Qualifying Storm Event A2540D 1280604
Dec 20, 2023 Oil and Grease < 7.8 mg/L Effluent Qualifying Storm Event E1664A 1276999
Dec 20, 2023 Oil and Grease DNQ 3.6 mg/L Effluent Qualifying Storm Event E1664A 1276999
Dec 20, 2023 Oil and Grease DNQ 3.4 mg/L Effluent Qualifying Storm Event E1664A 1276999
Dec 20, 2023 pH 8.18 SU Effluent Qualifying Storm Event pH_Field 1276999
Dec 20, 2023 pH 8.13 SU Effluent Qualifying Storm Event pH_Field 1276999
Dec 20, 2023 pH 7.91 SU Effluent Qualifying Storm Event pH_Field 1276999
Dec 20, 2023 Total Suspended Solids (TSS) 49.4 mg/L Effluent Qualifying Storm Event A2540D 1276999
Dec 20, 2023 Total Suspended Solids (TSS) 43.2 mg/L Effluent Qualifying Storm Event A2540D 1276999
Dec 20, 2023 Total Suspended Solids (TSS) 8.1 mg/L Effluent Qualifying Storm Event A2540D 1276999
Aug 20, 2023 Oil and Grease < 6 mg/L Effluent Qualifying Storm Event E1664A 1267487
Aug 20, 2023 Oil and Grease < 6.3 mg/L Effluent Qualifying Storm Event E1664A 1267487

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
Violations2 2 Violation · 0 Potential (preliminary) · 0 Dismissed Jul 02, 1999 – Dec 15, 2008 Oct 21, 2026 All violations
Enforcement actions1 1 issued · 0 draft · 0 withdrawn, rescinded or superseded Aug 23, 2010 – Aug 23, 2010 Oct 21, 2026 All actions
Inspections1inspections, not findings Jul 01, 2025 – Jul 01, 2025 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 (15 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 13, 2026 Annual reports 1333996 Annual report 2025 —
Jul 15, 2025 Annual reports 1292761 Annual report 2024 —
Jul 01, 2025 Inspections 2068434 B Type compliance PerformedNo Further Action
Jul 10, 2024 Annual reports 1241755 Annual report 2023 —
Jul 12, 2023 Annual reports 1187675 Annual report 2022 —
Jul 13, 2022 Annual reports 1110923 Annual report 2021 —
Jul 12, 2021 Annual reports 1066848 Annual report 2020 —
Jul 10, 2020 Annual reports 983991 Annual report 2019 —
Jul 01, 2019 Annual reports 951484 Annual report 2018 —
Jul 10, 2018 Annual reports 936890 Annual report 2017 —
Jul 13, 2017 Annual reports 876029 Annual report 2016 —
Jul 15, 2016 Annual reports 841480 Annual report 2015 —
Aug 23, 2010 Enforcement actions 404650 SEL (Staff Enforcement Letter) Historical
Dec 15, 2008 Violations 843917 Deficient BMP Implementation ViolationReport
Jul 02, 1999 Violations 155084 Deficient Report ViolationInspection

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.