ACC Precision Inc

Active WDID 4 56NEC004226 Oxnard, Ventura County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record
Active Industrial
No Exposure Certification (NEC) · Permits and applications
Location Evidence: facility-reported
Oxnard, Ventura County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
CMWD (as reported by the facility)
Evidence: not confirmed 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
None
Monitoring results Evidence: facility-reported
None in the current exports
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 3 violation records · 4 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

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

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
34.20003, -119.15426
Precision
5 decimal places
Shared point
No
Matches application record
application not found

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address
321 Hearst Drive, Oxnard 93030
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • McGrath Lake-Frontal Pacific Ocean HUC12 180701030202

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
No Exposure Certification (NEC)
Status
Active
Operator
ACC Precision Inc
Primary industry (SIC)
3599-Industrial and Commercial Machinery and Equipment, NEC
Application ID
498744
NOI processed
Jun 18, 2018
Last certified
Dec 12, 2023
Facility size
7704 SqFt
Impervious area
100 %

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

No application records for this WDID in the general applications export.

Receiving water

Reported by the facility Evidence: facility-reported
CMWD
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.

No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.

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.

No industrial monitoring results for this permit are in the current exports.

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.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations3 3 Violation · 0 Potential (preliminary) · 0 Dismissed Oct 02, 2021 – Oct 02, 2025 Oct 21, 2026 All violations
Enforcement actions4 4 issued · 0 draft · 0 withdrawn, rescinded or superseded Oct 18, 2021 – Oct 17, 2025 Oct 21, 2026 All actions
Inspections1inspections, not findings Jul 14, 2023 – Jul 14, 2023 Oct 21, 2026 All inspections
Annual reports0certified reports (contents not shown) — Oct 21, 2026
Water-quality-based corrective action reports0reports, 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 (8 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Oct 17, 2025 Enforcement actions 465583 NOV (Notice of Violation) Active
Oct 02, 2025 Violations 900099 Failure to meet NEC criteria ViolationReport
Dec 08, 2023 Enforcement actions 452056 NOV (Notice of Violation) Historical
Dec 08, 2023 Violations 887160 Failure to meet NEC criteria ViolationReport
Jul 14, 2023 Inspections 2061493 NEC FinalizedNo Further Action
Jan 03, 2022 Enforcement actions 445504 NOV (Notice of Violation) Historical
Oct 18, 2021 Enforcement actions 442534 NOV (Notice of Violation) Historical
Oct 02, 2021 Violations 878641 Failure to meet NEC criteria ViolationInternal Report

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

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

Records are shown as published and are not compliance determinations. How geographic context is derived.