Aluminum Precision Prod
Active WDID 4 56I017709 Oxnard, Ventura 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
- Oxnard, Ventura County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Pacific Ocean (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
- 482 distinct results, 5 reporting years (2015 to 2019)
- Most recent sample Jan 06, 2020 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 6 violation records · 5 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
- 34.14014, -119.1677
- Precision
- 4 decimal places
- Shared point
- 2 permits report this exact point
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 1001 Mcwane Blvd, Oxnard 93033
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Mugu Lagoon HUC12 180701030201
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
- Aluminum Precision Products
- Primary industry (SIC)
- 3463-Nonferrous Forgings
- Application ID
- 192810
- NOI processed
- Dec 26, 2002
- Last certified
- Jan 26, 2024
- Facility size
- 15 Acres
- Impervious area
- 90 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 192810 | Industrial | Active | Dec 26, 2002 | — | Jan 26, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Pacific Ocean
- 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
290 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 |
|---|---|---|---|
| Ormond Beach Wetlands CAT4031100020120423143006 | 937 m | listed | 3 |
| Oxnard Drain CAR4031100020110724175808 | 984 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.
482 distinct measurements across 12 parameters, most recent sample Jan 06, 2020.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2019 | 16 | 8 | 0 | Dec 04, 2019 | Jan 06, 2020 |
| 2018 | 88 | 11 | 0 | Dec 05, 2018 | Jan 31, 2019 |
| 2017 | 88 | 11 | 0 | Jan 09, 2018 | Mar 21, 2018 |
| 2016 | 262 | 10 | 0 | Dec 16, 2016 | Mar 21, 2017 |
| 2015 | 28 | 7 | 0 | Jan 05, 2016 | Mar 11, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 52 | 0 | Jan 05, 2016 | Dec 04, 2019 | Results |
| Iron, Total | mg/L | 52 | 2 | Jan 05, 2016 | Dec 04, 2019 | Results |
| Zinc, Total | mg/L | 52 | 0 | Jan 05, 2016 | Dec 04, 2019 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 49 | 0 | Jan 05, 2016 | Jan 06, 2020 | Results |
| Copper, Total | mg/L | 46 | 0 | Dec 16, 2016 | Jan 31, 2019 | Results |
| Nickel, Total | mg/L | 46 | 1 | Dec 16, 2016 | Jan 31, 2019 | Results |
| Oil and Grease | mg/L | 42 | 23 | Jan 05, 2016 | Dec 04, 2019 | Results |
| pH | SU | 42 | 0 | Jan 05, 2016 | Dec 04, 2019 | Results |
| Total Suspended Solids (TSS) | mg/L | 42 | 0 | Jan 05, 2016 | Dec 04, 2019 | Results |
| Total Dissolved Solids (TDS) | mg/L | 26 | 0 | Dec 16, 2016 | Mar 21, 2017 | Results |
| Magnesium, Total | mg/L | 17 | 0 | Jan 09, 2018 | Jan 06, 2020 | Results |
| Lead, Total Recoverable | ug/L | 16 | 0 | Jan 09, 2018 | Jan 31, 2019 | Results |
All results (482 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Jan 06, 2020 | Magnesium, Total | 3200 | mg/L | Influent | Non-Storm Water Discharge Event | E200.7 | 1097497 | |
| Jan 06, 2020 | Nitrite Plus Nitrate (as N) | 588 | mg/L | Influent | Non-Storm Water Discharge Event | A4500NOH | 1097497 | |
| Dec 04, 2019 | Aluminum, Total | .171 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1109505 | |
| Dec 04, 2019 | Aluminum, Total | .36 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1109505 | |
| Dec 04, 2019 | Iron, Total | .328 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1109505 | |
| Dec 04, 2019 | Iron, Total | .465 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1109505 | |
| Dec 04, 2019 | Nitrite Plus Nitrate (as N) | .643 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1109505 | |
| Dec 04, 2019 | Nitrite Plus Nitrate (as N) | .405 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1109505 | |
| Dec 04, 2019 | Oil and Grease | 2.98 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1109505 | |
| Dec 04, 2019 | Oil and Grease | 3.75 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1109505 | |
| Dec 04, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1109505 | |
| Dec 04, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1109505 | |
| Dec 04, 2019 | Total Suspended Solids (TSS) | 7.93 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1109505 | |
| Dec 04, 2019 | Total Suspended Solids (TSS) | 7.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1109505 | |
| Dec 04, 2019 | Zinc, Total | .0599 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1109505 | |
| Dec 04, 2019 | Zinc, Total | .0632 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1109505 | |
| Jan 31, 2019 | Aluminum, Total | .19 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Aluminum, Total | .235 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Copper, Total | .00401 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Copper, Total | .00568 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Iron, Total | .474 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1047479 | |
| Jan 31, 2019 | Iron, Total | .281 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1047479 | |
| Jan 31, 2019 | Lead, Total Recoverable | .00177 | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Lead, Total Recoverable | .00183 | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Magnesium, Total | 1.04 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1047479 | |
| Jan 31, 2019 | Magnesium, Total | 1.03 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1047479 | |
| Jan 31, 2019 | Nickel, Total | .000879 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Nickel, Total | .00146 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Nitrite Plus Nitrate (as N) | .468 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1047479 | |
| Jan 31, 2019 | Nitrite Plus Nitrate (as N) | .512 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1047479 | |
| Jan 31, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1047479 | |
| Jan 31, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1047479 | |
| Jan 31, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1047479 | |
| Jan 31, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1047479 | |
| Jan 31, 2019 | Total Suspended Solids (TSS) | 3.74 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1047479 | |
| Jan 31, 2019 | Total Suspended Solids (TSS) | 3.76 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1047479 | |
| Jan 31, 2019 | Zinc, Total | .0528 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 31, 2019 | Zinc, Total | .142 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1047479 | |
| Jan 14, 2019 | Aluminum, Total | .256 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 | |
| Jan 14, 2019 | Aluminum, Total | .206 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 | |
| Jan 14, 2019 | Copper, Total | .00526 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 | |
| Jan 14, 2019 | Copper, Total | .00519 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 | |
| Jan 14, 2019 | Iron, Total | .195 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1039359 | |
| Jan 14, 2019 | Iron, Total | .148 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1039359 | |
| Jan 14, 2019 | Lead, Total Recoverable | .00189 | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 | |
| Jan 14, 2019 | Lead, Total Recoverable | .00202 | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 | |
| Jan 14, 2019 | Magnesium, Total | 1.64 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1039359 | |
| Jan 14, 2019 | Magnesium, Total | 1.02 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1039359 | |
| Jan 14, 2019 | Nickel, Total | .00136 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 | |
| Jan 14, 2019 | Nickel, Total | .00228 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1039359 |
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 | 6 | 5 Violation · 1 Potential (preliminary) · 0 Dismissed | Aug 06, 2003 – Jul 25, 2024 | Oct 21, 2026 | All violations |
| Enforcement actions | 5 | 5 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 12, 2003 – Jul 25, 2024 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Jan 14, 2004 – Aug 17, 2023 | 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 (24 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 30, 2026 | Annual reports | 1335012 | Annual report 2025 | — | |
| Jul 09, 2025 | Annual reports | 1293811 | Annual report 2024 | — | |
| Jul 25, 2024 | Enforcement actions | 453678 | NOV (Notice of Violation) | Historical | |
| Jul 25, 2024 | Violations | 889373 | Failure to Notify | Potential | Report |
| Jul 03, 2024 | Enforcement actions | 453582 | NOV (Notice of Violation) | Historical | |
| Jul 02, 2024 | Annual reports | 1242872 | Annual report 2023 | — | |
| Aug 17, 2023 | Inspections | 2064902 | B Type compliance | Finalized | Additional Info Required |
| Aug 16, 2023 | Violations | 889277 | Deficient BMP Implementation | Violation | Inspection |
| Jul 06, 2023 | Annual reports | 1188858 | Annual report 2022 | — | |
| Jun 23, 2022 | Annual reports | 1112196 | Annual report 2021 | — | |
| Jun 16, 2021 | Annual reports | 1068188 | Annual report 2020 | — | |
| Jul 02, 2020 | Annual reports | 985414 | Annual report 2019 | — | |
| Jul 03, 2019 | Annual reports | 952947 | Annual report 2018 | — | |
| Jul 06, 2018 | Annual reports | 938361 | Annual report 2017 | — | |
| Oct 06, 2017 | Enforcement actions | 427702 | NOV (Notice of Violation) | Historical | |
| Oct 06, 2017 | Violations | 864833 | Incomplete/Insufficient SWPPP | Violation | Report |
| Jul 13, 2017 | Annual reports | 877574 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 847673 | Annual report 2015 | — | |
| Feb 16, 2010 | Enforcement actions | 404912 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 05, 2009 | Violations | 844164 | Deficient BMP Implementation | Violation | Report |
| Jan 14, 2004 | Inspections | 1736367 | Enforcement Follow-up | — | |
| Aug 12, 2003 | Enforcement actions | 242620 | NOV (Notice of Violation) | Historical | UNKNOWN |
| Aug 06, 2003 | Violations | 240400 | Deficient BMP Implementation | Violation | Inspection |
| Aug 06, 2003 | Violations | 240401 | 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.