Custom Alloy Sales Inc
Active WDID 4 19I001777 City Of Industry, 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
- City Of Industry, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- San Gabriel River (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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 274 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 11, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 5 inspections · 9 violation records · 7 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
- 34.05615, -117.9865
- 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
- 13329 Ector, City Of Industry 91746
- 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
- Active
- Operator
- Custom Alloy Sales
- Primary industry (SIC)
- 3341-Secondary Smelting and Refining of Nonferrous Metals
- Application ID
- 188852
- NOI processed
- Mar 30, 1992
- Last certified
- May 15, 2025
- Facility size
- 5 Acres
- Impervious area
- 98 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 188852 | Industrial | Active | Mar 30, 1992 | — | May 15, 2025 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- San Gabriel River
- Discharges directly / indirectly
- N / Y (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
10 official waterbodies share 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Walnut Creek Wash (Drains from Puddingstone Res) CAR4053100019980918112433 | 700 m | listed | 4 |
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.
274 distinct measurements across 11 parameters, most recent sample Feb 11, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 18 | 6 | 0 | Oct 14, 2025 | Feb 11, 2026 |
| 2024 | 12 | 6 | 0 | Jan 27, 2025 | Feb 07, 2025 |
| 2023 | 18 | 6 | 0 | Nov 16, 2023 | Feb 01, 2024 |
| 2022 | 24 | 6 | 0 | Sep 10, 2022 | Jan 30, 2023 |
| 2021 | 36 | 6 | 0 | Jul 26, 2021 | Mar 28, 2022 |
| 2020 | 24 | 6 | 0 | Dec 28, 2020 | Mar 10, 2021 |
| 2019 | 36 | 6 | 0 | Nov 20, 2019 | Apr 06, 2020 |
| 2018 | 36 | 6 | 0 | Oct 13, 2018 | Jan 16, 2019 |
| 2017 | 12 | 6 | 0 | Jan 08, 2018 | Mar 02, 2018 |
| 2016 | 33 | 10 | 0 | Dec 16, 2016 | Feb 10, 2017 |
| 2015 | 25 | 9 | 0 | Dec 23, 2015 | Feb 17, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 43 | 0 | Dec 23, 2015 | Feb 11, 2026 | Results |
| Copper, Total | mg/L | 43 | 0 | Dec 23, 2015 | Feb 11, 2026 | Results |
| Oil and Grease | mg/L | 43 | 25 | Dec 23, 2015 | Feb 11, 2026 | Results |
| pH | SU | 43 | 0 | Dec 23, 2015 | Feb 11, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 43 | 10 | Dec 23, 2015 | Feb 11, 2026 | Results |
| Zinc, Total | mg/L | 43 | 0 | Dec 23, 2015 | Feb 11, 2026 | Results |
| Iron, Total | mg/L | 7 | 0 | Dec 23, 2015 | Feb 10, 2017 | Results |
| Lead, Total | mg/L | 6 | 1 | Dec 23, 2015 | Feb 10, 2017 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 1 | 0 | Dec 16, 2016 | Dec 16, 2016 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 1 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 1 | 0 | Dec 21, 2016 | Dec 21, 2016 | Results |
Copper, Total results (43 distinct rows, show all)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 11, 2026 | Copper, Total | .011 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366336 | |
| Nov 14, 2025 | Copper, Total | .0083 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1360528 | |
| Oct 14, 2025 | Copper, Total | .014 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1356247 | |
| Feb 07, 2025 | Copper, Total | .034 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1323853 | |
| Jan 27, 2025 | Copper, Total | .02 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1323852 | |
| Feb 01, 2024 | Copper, Total | .015 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1280054 | |
| Jan 03, 2024 | Copper, Total | .0014 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1274452 | |
| Nov 16, 2023 | Copper, Total | .013 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1270997 | |
| Jan 30, 2023 | Copper, Total | .034 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229516 | |
| Jan 03, 2023 | Copper, Total | .037 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229507 | |
| Nov 08, 2022 | Copper, Total | .02 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1216400 | |
| Sep 10, 2022 | Copper, Total | .021 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1215240 | |
| Mar 28, 2022 | Copper, Total | .023 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1182129 | |
| Feb 23, 2022 | Copper, Total | .0064 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1179225 | |
| Dec 14, 2021 | Copper, Total | .019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1174165 | |
| Dec 09, 2021 | Copper, Total | .012 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1172670 | |
| Oct 25, 2021 | Copper, Total | .034 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1170513 | |
| Jul 26, 2021 | Copper, Total | .0059 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1156265 | |
| Mar 10, 2021 | Copper, Total | .031 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1147250 | |
| Mar 04, 2021 | Copper, Total | .58 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1147227 | |
| Jan 29, 2021 | Copper, Total | .026 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1144084 | |
| Dec 28, 2020 | Copper, Total | .024 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1139842 | |
| Apr 06, 2020 | Copper, Total | .0019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1108342 | |
| Mar 12, 2020 | Copper, Total | .004 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1104882 | |
| Mar 10, 2020 | Copper, Total | .0064 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1102392 | |
| Dec 04, 2019 | Copper, Total | .0044 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1101138 | |
| Nov 27, 2019 | Copper, Total | .05 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1100050 | |
| Nov 20, 2019 | Copper, Total | .031 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1101137 | |
| Jan 16, 2019 | Copper, Total | .0046 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1055363 | |
| Jan 12, 2019 | Copper, Total | .0019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1055360 | |
| Jan 05, 2019 | Copper, Total | .025 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1050204 | |
| Dec 05, 2018 | Copper, Total | .0019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1061714 | |
| Nov 29, 2018 | Copper, Total | .01 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1028081 | |
| Oct 13, 2018 | Copper, Total | .063 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1028081 | |
| Mar 02, 2018 | Copper, Total | .052 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1000330 | |
| Jan 08, 2018 | Copper, Total | .032 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1000328 | |
| Feb 10, 2017 | Copper, Total | .0044 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 931211 | |
| Feb 06, 2017 | Copper, Total | .017 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 931213 | |
| Dec 21, 2016 | Copper, Total | .018 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 931405 | |
| Dec 16, 2016 | Copper, Total | .017 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 919438 | |
| Feb 17, 2016 | Copper, Total | .0065 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 867191 | |
| Jan 05, 2016 | Copper, Total | .0059 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 865269 | |
| Dec 23, 2015 | Copper, Total | .06 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 863557 |
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 | 9 | 9 Violation · 0 Potential (preliminary) · 0 Dismissed | Mar 07, 2002 – Aug 31, 2022 | Oct 21, 2026 | All violations |
| Enforcement actions | 7 | 7 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 07, 2002 – Aug 31, 2022 | Oct 21, 2026 | All actions |
| Inspections | 5 | inspections, not findings | Mar 07, 2002 – Apr 10, 2015 | Oct 21, 2026 | All inspections |
| Annual reports | 11 | certified reports (contents not shown) | 2015 – 2025 | 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 (32 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Nov 08, 2004 | Violations | 260764 | Deficient BMP Implementation | Violation | Inspection |
| Nov 08, 2004 | Violations | 260822 | Deficient BMP Implementation | Violation | Inspection |
| Nov 08, 2004 | Violations | 260824 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| May 09, 2002 | Inspections | 1734930 | Enforcement Follow-up | — | No Further Action |
| Mar 07, 2002 | Enforcement actions | 241379 | NTC (Notice to Comply) | Historical | Field NTC |
| Mar 07, 2002 | Inspections | 1734929 | B Type compliance | — | Additional Info Required |
| Mar 07, 2002 | Violations | 208680 | Deficient BMP Implementation | Violation | Inspection |
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.