State Ready Mix
Terminated WDID 4 56I012911 Oxnard, Ventura County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Terminated 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
- Santa Clara River (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
- 1 waterbody; 0 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 93 distinct results, 10 reporting years (2015 to 2024)
- Most recent sample Mar 05, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 4 inspections · 12 violation records · 9 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
- 34.273251, -119.134147
- Precision
- 6 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
- 3127 Los Angeles Avenue, Oxnard 93036
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Harmon Canyon-Santa Clara River HUC12 180701020904
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
- Terminated
- Operator
- State Ready Mix
- Primary industry (SIC)
- 3273-Ready-Mixed Concrete
- Application ID
- 192686
- NOI processed
- Feb 14, 1997
- Termination effective
- Aug 10, 2026
- Last certified
- Feb 02, 2018
- Facility size
- 10 Acres
- Impervious area
- 2 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 192686 | Industrial | Terminated | Feb 14, 1997 | Aug 10, 2026 | Feb 02, 2018 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Santa Clara River
- Discharges directly / indirectly
- Y / N (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
13 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 |
|---|---|---|---|
| Santa Clara River Reach 2 CAR4031100020110724181658 | 660 m | not listed | 0 |
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.
93 distinct measurements across 4 parameters, most recent sample Mar 05, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2024 | 4 | 4 | 0 | Mar 05, 2025 | Mar 05, 2025 |
| 2023 | 8 | 4 | 0 | Feb 03, 2024 | Feb 19, 2024 |
| 2022 | 7 | 4 | 0 | Jan 03, 2023 | Feb 27, 2023 |
| 2021 | 16 | 4 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 15 | 4 | 0 | Nov 07, 2020 | Mar 10, 2021 |
| 2019 | 16 | 4 | 0 | Dec 04, 2019 | Apr 06, 2020 |
| 2018 | 16 | 4 | 0 | Nov 29, 2018 | Feb 14, 2019 |
| 2017 | 4 | 4 | 0 | Jan 08, 2018 | Jan 08, 2018 |
| 2016 | 4 | 4 | 0 | Oct 28, 2016 | Oct 28, 2016 |
| 2015 | 3 | 3 | 0 | Jan 05, 2016 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 24 | 0 | Jan 05, 2016 | Mar 05, 2025 | Results |
| Oil and Grease | mg/L | 23 | 14 | Oct 28, 2016 | Mar 05, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 22 | 4 | Jan 05, 2016 | Mar 05, 2025 | Results |
| Iron, Total Recoverable | mg/L | 21 | 7 | Nov 29, 2018 | Mar 05, 2025 | Results |
| Iron, Total Recoverable | ug/L | 3 | 0 | Jan 05, 2016 | Jan 08, 2018 | Results |
All results (93 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 05, 2025 | Iron, Total Recoverable | .45 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1328054 | |
| Mar 05, 2025 | Oil and Grease | 2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1328054 | |
| Mar 05, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1328054 | |
| Mar 05, 2025 | Total Suspended Solids (TSS) | 14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1328054 | |
| Feb 19, 2024 | Iron, Total Recoverable | .038 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1281487 | |
| Feb 19, 2024 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281487 | |
| Feb 19, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1281487 | |
| Feb 19, 2024 | Total Suspended Solids (TSS) | ND 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281487 | |
| Feb 03, 2024 | Iron, Total Recoverable | ND .02 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1281485 | |
| Feb 03, 2024 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281485 | |
| Feb 03, 2024 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1281485 | |
| Feb 03, 2024 | Total Suspended Solids (TSS) | ND 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281485 | |
| Feb 27, 2023 | Iron, Total Recoverable | ND .05 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1232289 | |
| Feb 27, 2023 | Oil and Grease | 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1232289 | |
| Feb 27, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1232289 | |
| Jan 03, 2023 | Iron, Total Recoverable | ND .05 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1227999 | |
| Jan 03, 2023 | Oil and Grease | ND 4.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1227999 | |
| Jan 03, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1227999 | |
| Jan 03, 2023 | Total Suspended Solids (TSS) | 1.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1227999 | |
| Mar 28, 2022 | Iron, Total Recoverable | ND .05 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1182071 | |
| Mar 28, 2022 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182071 | |
| Mar 28, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1182071 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | ND 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182071 | |
| Dec 27, 2021 | Iron, Total Recoverable | ND .05 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1176249 | |
| Dec 27, 2021 | Oil and Grease | 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1176249 | |
| Dec 27, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1176249 | |
| Dec 27, 2021 | Total Suspended Solids (TSS) | 1.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1176249 | |
| Dec 14, 2021 | Iron, Total Recoverable | ND .05 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1175160 | |
| Dec 14, 2021 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1175160 | |
| Dec 14, 2021 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1175160 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | ND 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1175160 | |
| Oct 25, 2021 | Iron, Total Recoverable | .068 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1169486 | |
| Oct 25, 2021 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1169486 | |
| Oct 25, 2021 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1169486 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 1.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1169486 | |
| Mar 10, 2021 | Iron, Total Recoverable | ND .05 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1147600 | |
| Mar 10, 2021 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1147600 | |
| Mar 10, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1147600 | |
| Jan 29, 2021 | Iron, Total Recoverable | 1.8 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1145472 | |
| Jan 29, 2021 | Oil and Grease | 4.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1145472 | |
| Jan 29, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1145472 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | 67 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1145472 | |
| Dec 28, 2020 | Iron, Total Recoverable | .25 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1139629 | |
| Dec 28, 2020 | Oil and Grease | 6.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1139629 | |
| Dec 28, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1139629 | |
| Dec 28, 2020 | Total Suspended Solids (TSS) | 7.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1139629 | |
| Nov 07, 2020 | Iron, Total Recoverable | 4.4 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1137173 | |
| Nov 07, 2020 | Oil and Grease | 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1137173 | |
| Nov 07, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1137173 | |
| Nov 07, 2020 | Total Suspended Solids (TSS) | 110 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1137173 |
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 | 12 | 12 Violation · 0 Potential (preliminary) · 0 Dismissed | Sep 14, 1995 – Jul 23, 2026 | Oct 21, 2026 | All violations |
| Enforcement actions | 9 | 9 issued · 0 draft · 0 withdrawn, rescinded or superseded | Nov 21, 1995 – Jul 23, 2026 | Oct 21, 2026 | All actions |
| Inspections | 4 | inspections, not findings | Sep 14, 1995 – Aug 27, 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 (36 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Aug 27, 2026 | Inspections | 2071960 | NOT | Finalized | No Further Action |
| Aug 10, 2026 | Annual reports | 1336933 | Annual report 2025 | — | |
| Jul 23, 2026 | Enforcement actions | 471188 | Verbal Communication | Active | |
| Jul 23, 2026 | Inspections | 2071595 | B Type compliance | Performed | Additional Info Required |
| Jul 23, 2026 | Violations | 905266 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Jul 22, 2026 | Enforcement actions | 470397 | NOV (Notice of Violation) | Active | |
| Jul 16, 2026 | Violations | 904475 | Late Report | Violation | Report |
| Jul 09, 2025 | Annual reports | 1295823 | Annual report 2024 | — | |
| Jun 27, 2024 | Annual reports | 1244991 | Annual report 2023 | — | |
| Jun 08, 2023 | Annual reports | 1191075 | Annual report 2022 | — | |
| Feb 15, 2023 | Enforcement actions | 449520 | NOV (Notice of Violation) | Historical | |
| Feb 15, 2023 | Violations | 884587 | Incomplete/Insufficient SWPPP | Violation | Report |
| Jul 05, 2022 | Annual reports | 1114604 | Annual report 2021 | — | |
| Jun 15, 2021 | Annual reports | 1070700 | Annual report 2020 | — | |
| Jan 26, 2021 | Enforcement actions | 439789 | NOV (Notice of Violation) | Historical | |
| Jan 26, 2021 | Violations | 876090 | Late Report | Violation | Report |
| Jun 08, 2020 | Annual reports | 988113 | Annual report 2019 | — | |
| Jul 09, 2019 | Annual reports | 955745 | Annual report 2018 | — | |
| Jul 13, 2018 | Annual reports | 941168 | Annual report 2017 | — | |
| Jun 01, 2017 | Annual reports | 880537 | Annual report 2016 | — | |
| Aug 30, 2016 | Annual reports | 842067 | Annual report 2015 | — | |
| Dec 10, 2001 | Enforcement actions | 239848 | NTC (Notice to Comply) | Historical | Field NTC |
| Dec 10, 2001 | Inspections | 2011986 | B Type compliance | — | Additional Info Required |
| Dec 10, 2001 | Violations | 198777 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Dec 10, 2001 | Violations | 844847 | Incomplete/Insufficient SWPPP | 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.