Bay Cities Metal Production
Active WDID 4 19I015609 Rosewood, 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
- Rosewood, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- 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
- None
- Monitoring results Evidence: facility-reported
- 336 distinct results, 8 reporting years (2016 to 2024)
- Most recent sample Feb 05, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 4 inspections · 4 violation records · 4 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
- 33.88585, -118.27137
- 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
- 301 E Alondra Blvd, Rosewood 90248
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Lower Dominguez Channel HUC12 180701060102
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
- Bay Cities Metal Production
- Primary industry (SIC)
- 3444-Sheet Metal Work
- Application ID
- 190973
- NOI processed
- Feb 01, 2000
- Last certified
- Jul 08, 2024
- Facility size
- 222374 SqFt
- Impervious area
- 0 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 190973 | Industrial | Active | Feb 01, 2000 | — | Jul 08, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- —
- Discharges directly / indirectly
- N / N (as answered in the permit application)
No receiving-water text was reported for this permit.
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 | Waterbody (as reported) | Parameter | Limit | Type | Period | Due | Discharges to TMDL water |
|---|---|---|---|---|---|---|---|
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | Dominguez Channel Estuary | Zinc, Total | .095 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
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.
336 distinct measurements across 9 parameters, most recent sample Feb 05, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2024 | 21 | 7 | 0 | Feb 05, 2025 | Feb 05, 2025 |
| 2022 | 33 | 9 | 0 | Dec 13, 2022 | Jan 14, 2023 |
| 2021 | 24 | 8 | 0 | Dec 14, 2021 | Dec 14, 2021 |
| 2020 | 48 | 8 | 0 | Mar 03, 2021 | Mar 15, 2021 |
| 2019 | 42 | 7 | 0 | Dec 04, 2019 | Mar 13, 2020 |
| 2018 | 84 | 7 | 0 | Nov 29, 2018 | May 16, 2019 |
| 2017 | 63 | 7 | 0 | Jan 09, 2018 | Mar 22, 2018 |
| 2016 | 21 | 7 | 0 | Jan 09, 2017 | Jan 09, 2017 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Total Suspended Solids (TSS) | mg/L | 48 | 6 | Jan 09, 2017 | Feb 05, 2025 | Results |
| Aluminum, Total | mg/L | 45 | 2 | Jan 09, 2017 | Feb 05, 2025 | Results |
| Iron, Total | mg/L | 45 | 2 | Jan 09, 2017 | Feb 05, 2025 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 45 | 5 | Jan 09, 2017 | Feb 05, 2025 | Results |
| Oil and Grease | mg/L | 45 | 13 | Jan 09, 2017 | Feb 05, 2025 | Results |
| Zinc, Total | mg/L | 45 | 3 | Jan 09, 2017 | Feb 05, 2025 | Results |
| pH | SU | 39 | 0 | Jan 09, 2017 | Feb 05, 2025 | Results |
| Nitrate, Total (as N) | mg/L | 12 | 5 | Mar 03, 2021 | Jan 14, 2023 | Results |
| Nitrite, Total (as N) | mg/L | 12 | 3 | Mar 03, 2021 | Jan 14, 2023 | Results |
All results (336 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 05, 2025 | Aluminum, Total | .103 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330070 | |
| Feb 05, 2025 | Aluminum, Total | .0611 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330070 | |
| Feb 05, 2025 | Aluminum, Total | .0457 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330070 | |
| Feb 05, 2025 | Iron, Total | .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1330070 | |
| Feb 05, 2025 | Iron, Total | .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1330070 | |
| Feb 05, 2025 | Iron, Total | .21 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1330070 | |
| Feb 05, 2025 | Nitrite Plus Nitrate (as N) | .56 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1330070 | |
| Feb 05, 2025 | Nitrite Plus Nitrate (as N) | .23 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1330070 | |
| Feb 05, 2025 | Nitrite Plus Nitrate (as N) | .05 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1330070 | |
| Feb 05, 2025 | Oil and Grease | 6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1330070 | |
| Feb 05, 2025 | Oil and Grease | 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1330070 | |
| Feb 05, 2025 | Oil and Grease | 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1330070 | |
| Feb 05, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1330070 | |
| Feb 05, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1330070 | |
| Feb 05, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1330070 | |
| Feb 05, 2025 | Total Suspended Solids (TSS) | 134 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1330070 | |
| Feb 05, 2025 | Total Suspended Solids (TSS) | 2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1330070 | |
| Feb 05, 2025 | Total Suspended Solids (TSS) | 112 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1330070 | |
| Feb 05, 2025 | Zinc, Total | .0907 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330070 | |
| Feb 05, 2025 | Zinc, Total | 2.22 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330070 | |
| Feb 05, 2025 | Zinc, Total | 2.18 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330070 | |
| Jan 14, 2023 | Aluminum, Total | .0222 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229741 | |
| Jan 14, 2023 | Aluminum, Total | .0753 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229741 | |
| Jan 14, 2023 | Aluminum, Total | .0296 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229741 | |
| Jan 14, 2023 | Iron, Total | DNQ .0102 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1229741 | |
| Jan 14, 2023 | Iron, Total | .108 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1229741 | |
| Jan 14, 2023 | Iron, Total | DNQ .0448 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1229741 | |
| Jan 14, 2023 | Nitrate, Total (as N) | DNQ .0942 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1229741 | |
| Jan 14, 2023 | Nitrate, Total (as N) | DNQ .0953 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1229741 | |
| Jan 14, 2023 | Nitrate, Total (as N) | DNQ .0773 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1229741 | |
| Jan 14, 2023 | Nitrite Plus Nitrate (as N) | DNQ .0942 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1229741 | |
| Jan 14, 2023 | Nitrite Plus Nitrate (as N) | DNQ .0953 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1229741 | |
| Jan 14, 2023 | Nitrite Plus Nitrate (as N) | DNQ .0773 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1229741 | |
| Jan 14, 2023 | Nitrite, Total (as N) | .0172 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1229741 | |
| Jan 14, 2023 | Nitrite, Total (as N) | .0172 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1229741 | |
| Jan 14, 2023 | Nitrite, Total (as N) | .0172 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1229741 | |
| Jan 14, 2023 | Oil and Grease | DNQ 2.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1229741 | |
| Jan 14, 2023 | Oil and Grease | DNQ 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1229741 | |
| Jan 14, 2023 | Oil and Grease | DNQ 3.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1229741 | |
| Jan 14, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229741 | |
| Jan 14, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229741 | |
| Jan 14, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229741 | |
| Jan 14, 2023 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1229741 | |
| Jan 14, 2023 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1229741 | |
| Jan 14, 2023 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1229741 | |
| Jan 14, 2023 | Zinc, Total | .171 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229741 | |
| Jan 14, 2023 | Zinc, Total | .094 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229741 | |
| Jan 14, 2023 | Zinc, Total | .0387 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229741 | |
| Dec 13, 2022 | pH | 5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1220529 | |
| Dec 13, 2022 | pH | 5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1220529 |
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 | 4 | 4 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 2013 – Jan 26, 2026 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 4 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 27, 2015 – May 13, 2026 | Oct 21, 2026 | All actions |
| Inspections | 4 | inspections, not findings | Jan 16, 2002 – Jan 26, 2026 | 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 (23 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 01, 2026 | Annual reports | 1336235 | Annual report 2025 | — | |
| May 13, 2026 | Enforcement actions | 470046 | NOV (Notice of Violation) | Historical | |
| Jan 26, 2026 | Enforcement actions | 470083 | Verbal Communication | Historical | |
| Jan 26, 2026 | Enforcement actions | 470084 | Verbal Communication | Historical | |
| Jan 26, 2026 | Inspections | 2070072 | B Type compliance | Finalized | Additional Info Required |
| Jan 26, 2026 | Violations | 904089 | Deficient BMP Implementation | Violation | Inspection |
| Jan 26, 2026 | Violations | 904156 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Jun 26, 2025 | Annual reports | 1295090 | Annual report 2024 | — | |
| Jul 11, 2024 | Annual reports | 1244218 | Annual report 2023 | — | |
| Jul 15, 2022 | Annual reports | 1113733 | Annual report 2021 | — | |
| Jul 06, 2022 | Annual reports | 1190266 | Annual report 2022 | — | |
| Jul 20, 2021 | Annual reports | 1069790 | Annual report 2020 | — | |
| Jul 14, 2020 | Annual reports | 987129 | Annual report 2019 | — | |
| Jul 01, 2019 | Annual reports | 954727 | Annual report 2018 | — | |
| Jul 05, 2018 | Annual reports | 940145 | Annual report 2017 | — | |
| Jul 10, 2017 | Annual reports | 879451 | Annual report 2016 | — | |
| Mar 14, 2017 | Inspections | 2033992 | B Type compliance | — | No Further Action |
| Aug 23, 2016 | Annual reports | 844474 | Annual report 2015 | — | |
| May 09, 2016 | Inspections | 2029807 | Enforcement Follow-up | — | No Further Action |
| Mar 27, 2015 | Enforcement actions | 418660 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2014 | Violations | 856885 | Late Report | Violation | Report |
| Jul 02, 2013 | Violations | 856884 | Late Report | Violation | Report |
| Jan 16, 2002 | Inspections | 1736225 | B Type compliance | — |
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.