Mag Parts
Terminated WDID 4 19I001038 Azusa, 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
- Azusa, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Whittier Narrows Spreading Gro (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
- 500 distinct results, 7 reporting years (2015 to 2021)
- Most recent sample Mar 28, 2022 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 2 violation records · 2 enforcement actions
- Counts as published in SMARTS; not a compliance determination · Details
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
Reported location Evidence: facility-reported
- Coordinates
- 34.11615, -117.93323
- 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
- 1545 W Roosevelt St, Azusa 91702
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Santa Fe Flood Control Basin-San Gabriel River HUC12 180701060601
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
- Mag Parts
- Primary industry (SIC)
- 3365-Aluminum Foundries
- Secondary SIC
- 3398-Metal Heat Treating
- Tertiary SIC
- 3369-Nonferrous Foundries, Except Aluminum and Copper
- Application ID
- 188740
- NOI processed
- Mar 25, 1992
- Termination effective
- Aug 28, 2024
- Last certified
- May 22, 2023
- Facility size
- 5.6 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 188740 | Industrial | Terminated | Mar 25, 1992 | Aug 28, 2024 | May 22, 2023 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Whittier Narrows Spreading Gro
- Discharges directly / indirectly
- N / N (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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Santa Fe Dam Park Lake CAL4053100020000303202907 | 999 m | listed | 3 |
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.
500 distinct measurements across 8 parameters, most recent sample Mar 28, 2022.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2021 | 48 | 6 | 0 | Dec 30, 2021 | Mar 28, 2022 |
| 2020 | 72 | 6 | 0 | Dec 28, 2020 | Mar 10, 2021 |
| 2019 | 112 | 7 | 0 | Nov 27, 2019 | Apr 06, 2020 |
| 2018 | 84 | 7 | 0 | Jan 14, 2019 | Feb 14, 2019 |
| 2017 | 56 | 7 | 0 | Jan 09, 2018 | Mar 21, 2018 |
| 2016 | 84 | 7 | 0 | Dec 16, 2016 | Feb 06, 2017 |
| 2015 | 44 | 7 | 0 | Sep 15, 2015 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Copper, Total | mg/L | 76 | 0 | Sep 15, 2015 | Mar 28, 2022 | Results |
| pH | SU | 76 | 0 | Sep 15, 2015 | Mar 28, 2022 | Results |
| Total Suspended Solids (TSS) | mg/L | 76 | 1 | Sep 15, 2015 | Mar 28, 2022 | Results |
| Zinc, Total | mg/L | 76 | 0 | Sep 15, 2015 | Mar 28, 2022 | Results |
| Lead, Total | mg/L | 72 | 22 | Sep 15, 2015 | Mar 28, 2022 | Results |
| Oil and Grease | mg/L | 68 | 45 | Dec 16, 2016 | Mar 28, 2022 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 52 | 0 | Sep 15, 2015 | Apr 06, 2020 | Results |
| Total Organic Carbon (TOC) | mg/L | 4 | 0 | Sep 15, 2015 | Sep 15, 2015 | Results |
All results (500 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 28, 2022 | Copper, Total | .047 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Copper, Total | .033 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Copper, Total | .025 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Copper, Total | .03 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Lead, Total | .012 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Lead, Total | .0048 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Lead, Total | .0089 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Lead, Total | .012 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Oil and Grease | 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186260 | |
| Mar 28, 2022 | Oil and Grease | 1.3 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186260 | |
| Mar 28, 2022 | Oil and Grease | 1.3 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186260 | |
| Mar 28, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186260 | |
| Mar 28, 2022 | pH | 7.57 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186260 | |
| Mar 28, 2022 | pH | 7.34 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186260 | |
| Mar 28, 2022 | pH | 7.51 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186260 | |
| Mar 28, 2022 | pH | 8.05 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186260 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 140 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186260 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 48 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186260 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 58 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186260 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 100 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186260 | |
| Mar 28, 2022 | Zinc, Total | .44 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Zinc, Total | .28 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Zinc, Total | .39 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Mar 28, 2022 | Zinc, Total | .44 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186260 | |
| Dec 30, 2021 | Copper, Total | .013 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Copper, Total | .012 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Copper, Total | .02 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Copper, Total | .0028 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Lead, Total | .0043 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Lead, Total | .0047 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186256 | |
| Dec 30, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186256 | |
| Dec 30, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186256 | |
| Dec 30, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186256 | |
| Dec 30, 2021 | pH | 6.74 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186256 | |
| Dec 30, 2021 | pH | 7.39 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186256 | |
| Dec 30, 2021 | pH | 7.46 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186256 | |
| Dec 30, 2021 | pH | 7.75 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186256 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186256 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 41 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186256 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186256 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186256 | |
| Dec 30, 2021 | Zinc, Total | .18 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Zinc, Total | .19 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Zinc, Total | .092 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Dec 30, 2021 | Zinc, Total | .032 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186256 | |
| Mar 10, 2021 | Copper, Total | .023 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1154381 | |
| Mar 10, 2021 | Copper, Total | .013 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1154381 |
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.
| Record type | Records | As published | Dates | Retrieved | List |
|---|---|---|---|---|---|
| Violations | 2 | 2 Violation · 0 Potential (preliminary) · 0 Dismissed | Dec 01, 2008 – Apr 29, 2021 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 05, 2010 – May 31, 2023 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Feb 14, 2023 – Feb 14, 2023 | Oct 21, 2026 | All inspections |
| Annual reports | 8 | certified reports (contents not shown) | 2015 – 2022 | 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 (13 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 18, 2023 | Annual reports | 1190993 | Annual report 2022 | — | |
| May 31, 2023 | Enforcement actions | 449844 | ACL (Administrative Civil Liability) | Historical | R4-2023-0052 |
| Feb 14, 2023 | Inspections | 2059200 | Inspection from Vehicle | Finalized | Additional Info Required |
| Jul 06, 2022 | Annual reports | 1114513 | Annual report 2021 | — | |
| Jul 15, 2021 | Annual reports | 1070607 | Annual report 2020 | — | |
| Apr 29, 2021 | Violations | 885010 | Late Report | Violation | Report |
| Jul 13, 2020 | Annual reports | 988014 | Annual report 2019 | — | |
| Jul 16, 2019 | Annual reports | 955642 | Annual report 2018 | — | |
| Jul 10, 2018 | Annual reports | 941064 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 880428 | Annual report 2016 | — | |
| Jul 06, 2016 | Annual reports | 841617 | Annual report 2015 | — | |
| Aug 05, 2010 | Enforcement actions | 404585 | SEL (Staff Enforcement Letter) | Historical | |
| Dec 01, 2008 | Violations | 843855 | Deficient BMP Implementation | Violation | Report |
Sources and provenance
| 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.