California Expanded Metal Product
Active WDID 4 19I009657 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, 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
- 709 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 16, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 9 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
- 34.05644, -118.00032
- 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
- 263 Covina Lane, 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
- California Expanded Metal Product
- Primary industry (SIC)
- 3448-Prefabricated Metal Buildings and Components
- Application ID
- 189853
- NOI processed
- Jan 04, 1993
- Last certified
- Jun 14, 2022
- Facility size
- 9.6 Acres
- Impervious area
- 0 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 189853 | Industrial | Active | Jan 04, 1993 | — | Jun 14, 2022 |
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
- 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
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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Walnut Creek Wash (Drains from Puddingstone Res) CAR4053100019980918112433 | 507 m | listed | 4 |
| San Gabriel River Reach 3 (Whittier Narrows to Ramona) CAR4053100019980917153706 | 612 m | listed | 2 |
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.
709 distinct measurements across 11 parameters, most recent sample Feb 16, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 92 | 8 | 0 | Nov 14, 2025 | Feb 16, 2026 |
| 2024 | 32 | 8 | 0 | Feb 13, 2025 | Mar 13, 2025 |
| 2023 | 52 | 8 | 0 | Feb 01, 2024 | Feb 19, 2024 |
| 2022 | 55 | 8 | 0 | Jan 09, 2023 | Mar 14, 2023 |
| 2021 | 32 | 8 | 0 | Dec 14, 2021 | Dec 14, 2021 |
| 2020 | 78 | 10 | 0 | Dec 28, 2020 | Mar 10, 2021 |
| 2019 | 112 | 8 | 0 | Nov 27, 2019 | Apr 06, 2020 |
| 2018 | 95 | 8 | 0 | Dec 06, 2018 | May 16, 2019 |
| 2017 | 48 | 8 | 0 | Mar 02, 2018 | Mar 21, 2018 |
| 2016 | 70 | 7 | 0 | Dec 15, 2016 | Feb 17, 2017 |
| 2015 | 43 | 8 | 0 | Oct 06, 2015 | Mar 11, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 93 | 0 | Oct 06, 2015 | Feb 16, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 93 | 1 | Oct 06, 2015 | Feb 16, 2026 | Results |
| Zinc, Total | mg/L | 93 | 0 | Oct 06, 2015 | Feb 16, 2026 | Results |
| Oil and Grease | mg/L | 92 | 13 | Oct 06, 2015 | Feb 16, 2026 | Results |
| Aluminum, Total | mg/L | 90 | 0 | Feb 17, 2016 | Feb 16, 2026 | Results |
| Iron, Total | mg/L | 86 | 42 | Feb 17, 2016 | Feb 16, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 85 | 2 | Feb 17, 2016 | Feb 16, 2026 | Results |
| Zinc, Dissolved | mg/L | 68 | 0 | Mar 02, 2018 | Feb 16, 2026 | Results |
| Nitrate, Total (as N) | mg/L | 3 | 0 | Dec 28, 2020 | Dec 28, 2020 | Results |
| Nitrite, Total (as N) | mg/L | 3 | 3 | Dec 28, 2020 | Dec 28, 2020 | Results |
| Total Organic Carbon (TOC) | mg/L | 3 | 0 | Oct 06, 2015 | Oct 06, 2015 | Results |
All results (709 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 16, 2026 | Aluminum, Total | .0977 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Feb 16, 2026 | Aluminum, Total | .153 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Feb 16, 2026 | Aluminum, Total | .252 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Feb 16, 2026 | Aluminum, Total | .0438 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Feb 16, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1367671 | |
| Feb 16, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1367671 | |
| Feb 16, 2026 | Iron, Total | DNQ .459 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1367671 | |
| Feb 16, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1367671 | |
| Feb 16, 2026 | Nitrite Plus Nitrate (as N) | .148 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1367671 | |
| Feb 16, 2026 | Nitrite Plus Nitrate (as N) | .243 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1367671 | |
| Feb 16, 2026 | Nitrite Plus Nitrate (as N) | 2.44 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1367671 | |
| Feb 16, 2026 | Nitrite Plus Nitrate (as N) | DNQ .0956 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1367671 | |
| Feb 16, 2026 | Oil and Grease | .998 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1367671 | |
| Feb 16, 2026 | Oil and Grease | 2.47 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1367671 | |
| Feb 16, 2026 | Oil and Grease | 2.09 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1367671 | |
| Feb 16, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1367671 | |
| Feb 16, 2026 | pH | 8.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1367671 | |
| Feb 16, 2026 | pH | 8.11 | SU | Effluent | Qualifying Storm Event | pH_Field | 1367671 | |
| Feb 16, 2026 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1367671 | |
| Feb 16, 2026 | pH | 8.89 | SU | Effluent | Qualifying Storm Event | pH_Field | 1367671 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 2.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367671 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 8.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367671 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 5.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367671 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 2.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367671 | |
| Feb 16, 2026 | Zinc, Dissolved | .0225 | mg/L | Effluent | Qualifying Storm Event | 1367671 | ||
| Feb 16, 2026 | Zinc, Dissolved | .355 | mg/L | Effluent | Qualifying Storm Event | 1367671 | ||
| Feb 16, 2026 | Zinc, Dissolved | .283 | mg/L | Effluent | Qualifying Storm Event | 1367671 | ||
| Feb 16, 2026 | Zinc, Dissolved | .0831 | mg/L | Effluent | Qualifying Storm Event | 1367671 | ||
| Feb 16, 2026 | Zinc, Total | .0719 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Feb 16, 2026 | Zinc, Total | .42 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Feb 16, 2026 | Zinc, Total | .366 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Feb 16, 2026 | Zinc, Total | .102 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367671 | |
| Nov 20, 2025 | Aluminum, Total | .0458 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359279 | |
| Nov 20, 2025 | Aluminum, Total | .188 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359279 | |
| Nov 20, 2025 | Aluminum, Total | .118 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359279 | |
| Nov 20, 2025 | Aluminum, Total | .0625 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359279 | |
| Nov 20, 2025 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359279 | |
| Nov 20, 2025 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359279 | |
| Nov 20, 2025 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359279 | |
| Nov 20, 2025 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359279 | |
| Nov 20, 2025 | Nitrite Plus Nitrate (as N) | .762 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1359279 | |
| Nov 20, 2025 | Nitrite Plus Nitrate (as N) | .275 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1359279 | |
| Nov 20, 2025 | Nitrite Plus Nitrate (as N) | .131 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1359279 | |
| Nov 20, 2025 | Nitrite Plus Nitrate (as N) | .161 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1359279 | |
| Nov 20, 2025 | Oil and Grease | 2.54 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359279 | |
| Nov 20, 2025 | Oil and Grease | 1.96 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359279 | |
| Nov 20, 2025 | Oil and Grease | 2.05 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359279 | |
| Nov 20, 2025 | Oil and Grease | 1.08 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359279 | |
| Nov 20, 2025 | pH | 8.89 | SU | Effluent | Qualifying Storm Event | pH_Field | 1359279 | |
| Nov 20, 2025 | pH | 7.38 | SU | Effluent | Qualifying Storm Event | pH_Field | 1359279 |
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 | Jul 02, 1999 – Dec 16, 2005 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 07, 2002 – Oct 26, 2004 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Jan 24, 2002 – Oct 26, 2004 | 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 (25 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 13, 2026 | Annual reports | 1334293 | Annual report 2025 | — | |
| Jun 26, 2025 | Annual reports | 1293068 | Annual report 2024 | — | |
| Jul 12, 2024 | Annual reports | 1242077 | Annual report 2023 | — | |
| Jul 11, 2023 | Annual reports | 1188020 | Annual report 2022 | — | |
| Jul 12, 2022 | Annual reports | 1111292 | Annual report 2021 | — | |
| Jul 13, 2021 | Annual reports | 1067237 | Annual report 2020 | — | |
| Jul 06, 2020 | Annual reports | 984402 | Annual report 2019 | — | |
| Jun 19, 2019 | Annual reports | 951910 | Annual report 2018 | — | |
| Jul 09, 2018 | Annual reports | 937321 | Annual report 2017 | — | |
| Jun 29, 2017 | Annual reports | 876476 | Annual report 2016 | — | |
| Jun 10, 2016 | Annual reports | 846156 | Annual report 2015 | — | |
| Dec 16, 2005 | Violations | 431511 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Dec 16, 2005 | Violations | 431514 | Deficient BMP Implementation | Violation | Inspection |
| Aug 12, 2005 | Violations | 420788 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Aug 12, 2005 | Violations | 420789 | Deficient BMP Implementation | Violation | Inspection |
| Aug 12, 2005 | Violations | 420790 | Deficient Report | Violation | Inspection |
| Oct 26, 2004 | Enforcement actions | 253721 | NTC (Notice to Comply) | Historical | UNKNOWN |
| Oct 26, 2004 | Inspections | 1733894 | B Type compliance | — | Additional Info Required |
| Oct 26, 2004 | Violations | 259875 | Deficient BMP Implementation | Violation | Inspection |
| Oct 26, 2004 | Violations | 259876 | Deficient BMP Implementation | Violation | Inspection |
| Jun 05, 2002 | Inspections | 1733896 | Enforcement Follow-up | — | |
| Mar 07, 2002 | Enforcement actions | 240907 | NOV (Notice of Violation) | Historical | UNKNOWN |
| Jan 24, 2002 | Inspections | 1733895 | B Type compliance | — | |
| Jan 24, 2002 | Violations | 203345 | Deficient BMP Implementation | Violation | Inspection |
| Jul 02, 1999 | Violations | 155428 | Deficient Report | 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.