Alco Iron Metal Co
Active WDID 2 48I013454 Vallejo, Solano County Region 2 · San Francisco Bay
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Vallejo, Solano County
- Region 2 · San Francisco Bay · 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 585 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Apr 10, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 2 violation records · 1 enforcement action
- 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
- 38.1091, -122.28513
- 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
- 321 Azuar Dr, Vallejo 94592
- Regional Water Board
- 2 — San Francisco Bay
HUC12 watershed Evidence: spatial
- Novato Creek-Frontal San Pablo Bay Estuaries HUC12 180500020801
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
- Alco Iron Metal Co
- Primary industry (SIC)
- 5093-Scrap and Waste Materials
- Application ID
- 184693
- NOI processed
- Oct 08, 1997
- Last certified
- Apr 08, 2015
- Facility size
- 215460 SqFt
- Impervious area
- 5 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 184693 | Industrial | Active | Oct 08, 1997 | — | Apr 08, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Mare Islands Straight
- Discharges directly / indirectly
- N / Y (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 |
|---|---|---|---|
| Napa River, Mare Island Strait CAR2061000020160627048321 | 946 m | listed | 5 |
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.
585 distinct measurements across 9 parameters, most recent sample Apr 10, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 72 | 9 | 0 | Dec 22, 2025 | Apr 10, 2026 |
| 2024 | 72 | 9 | 0 | Nov 25, 2024 | Mar 14, 2025 |
| 2023 | 72 | 9 | 0 | Dec 07, 2023 | Mar 29, 2024 |
| 2022 | 72 | 9 | 0 | Nov 08, 2022 | Mar 21, 2023 |
| 2021 | 54 | 9 | 0 | Oct 21, 2021 | Apr 14, 2022 |
| 2020 | 36 | 9 | 0 | Jan 27, 2021 | Apr 26, 2021 |
| 2019 | 54 | 9 | 0 | Dec 18, 2019 | Jan 16, 2020 |
| 2018 | 72 | 9 | 0 | Nov 21, 2018 | May 16, 2019 |
| 2017 | 18 | 9 | 0 | Feb 28, 2018 | Apr 06, 2018 |
| 2016 | 36 | 9 | 0 | Oct 14, 2016 | Feb 16, 2017 |
| 2015 | 27 | 9 | 0 | Dec 11, 2015 | Feb 19, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 65 | 17 | Dec 11, 2015 | Apr 10, 2026 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 65 | 21 | Dec 11, 2015 | Apr 10, 2026 | Results |
| Copper, Total | mg/L | 65 | 3 | Dec 11, 2015 | Apr 10, 2026 | Results |
| Iron, Total | mg/L | 65 | 13 | Dec 11, 2015 | Apr 10, 2026 | Results |
| Lead, Total | mg/L | 65 | 14 | Dec 11, 2015 | Apr 10, 2026 | Results |
| Oil and Grease | mg/L | 65 | 51 | Dec 11, 2015 | Apr 10, 2026 | Results |
| pH | SU | 65 | 0 | Dec 11, 2015 | Apr 10, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 65 | 19 | Dec 11, 2015 | Apr 10, 2026 | Results |
| Zinc, Total | mg/L | 65 | 6 | Dec 11, 2015 | Apr 10, 2026 | Results |
All results (585 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 10, 2026 | Aluminum, Total | ND | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Aluminum, Total | .06 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372855 | |
| Apr 10, 2026 | Chemical Oxygen Demand (COD) | 42 | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Chemical Oxygen Demand (COD) | 38 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1372855 | |
| Apr 10, 2026 | Copper, Total | .00505 | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Copper, Total | .0491 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372855 | |
| Apr 10, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372855 | |
| Apr 10, 2026 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Lead, Total | .00215 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372855 | |
| Apr 10, 2026 | Oil and Grease | 3.5 | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Oil and Grease | 8.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372855 | |
| Apr 10, 2026 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1372855 | |
| Apr 10, 2026 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Total Suspended Solids (TSS) | 1.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372855 | |
| Apr 10, 2026 | Zinc, Total | .009 | mg/L | Effluent | Qualifying Storm Event | 1372855 | ||
| Apr 10, 2026 | Zinc, Total | .037 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372855 | |
| Feb 17, 2026 | Aluminum, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Feb 17, 2026 | Aluminum, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Feb 17, 2026 | Chemical Oxygen Demand (COD) | 98 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1369448 | |
| Feb 17, 2026 | Chemical Oxygen Demand (COD) | 180 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1369448 | |
| Feb 17, 2026 | Copper, Total | .00402 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Feb 17, 2026 | Copper, Total | .00308 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Feb 17, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369448 | |
| Feb 17, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369448 | |
| Feb 17, 2026 | Lead, Total | .0004 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Feb 17, 2026 | Lead, Total | .000355 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Feb 17, 2026 | Oil and Grease | 7.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369448 | |
| Feb 17, 2026 | Oil and Grease | 2.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369448 | |
| Feb 17, 2026 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1369448 | |
| Feb 17, 2026 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1369448 | |
| Feb 17, 2026 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369448 | |
| Feb 17, 2026 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369448 | |
| Feb 17, 2026 | Zinc, Total | .095 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Feb 17, 2026 | Zinc, Total | .087 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1369448 | |
| Dec 27, 2025 | Aluminum, Total | .024 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Aluminum, Total | .048 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Chemical Oxygen Demand (COD) | ND | mg/L | Effluent | Qualifying Storm Event | A5220D | 1366654 | |
| Dec 27, 2025 | Chemical Oxygen Demand (COD) | 24 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1366654 | |
| Dec 27, 2025 | Copper, Total | .00886 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Copper, Total | .00712 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Iron, Total | .021 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Iron, Total | .045 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Lead, Total | .000345 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Lead, Total | .000555 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1366654 | |
| Dec 27, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1366654 | |
| Dec 27, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1366654 | |
| Dec 27, 2025 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1366654 | |
| Dec 27, 2025 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | pH_Field | 1366654 |
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 | 1 Violation · 0 Potential (preliminary) · 1 Dismissed | Jul 02, 1999 – Jul 04, 2005 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 0 issued · 1 draft · 0 withdrawn, rescinded or superseded | Aug 05, 2005 – Aug 05, 2005 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Jan 18, 2001 – Apr 25, 2019 | 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 (17 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 13, 2026 | Annual reports | 1334019 | Annual report 2025 | — | |
| Jul 09, 2025 | Annual reports | 1292786 | Annual report 2024 | — | |
| Jul 15, 2024 | Annual reports | 1241780 | Annual report 2023 | — | |
| Jun 28, 2023 | Annual reports | 1187700 | Annual report 2022 | — | |
| Jul 06, 2022 | Annual reports | 1110951 | Annual report 2021 | — | |
| Jul 09, 2021 | Annual reports | 1066878 | Annual report 2020 | — | |
| Jun 30, 2020 | Annual reports | 984023 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 951517 | Annual report 2018 | — | |
| Apr 25, 2019 | Inspections | 2042391 | B Type compliance | — | No Further Action |
| Jul 12, 2018 | Annual reports | 936923 | Annual report 2017 | — | |
| Jul 10, 2017 | Annual reports | 876066 | Annual report 2016 | — | |
| Jul 08, 2016 | Annual reports | 846141 | Annual report 2015 | — | |
| Jul 25, 2006 | Inspections | 650922 | B Type compliance | — | No Further Action |
| Aug 05, 2005 | Enforcement actions | 311221 | NNC (Notice of Non-Compliance) | Draft | 97-03DWQ |
| Jul 04, 2005 | Violations | 435392 | Late Report | Dismissed | Report |
| Jan 18, 2001 | Inspections | 312886 | B Type compliance | — | |
| Jul 02, 1999 | Violations | 138182 | 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.