Ventura Field Reservoir Site
Active WDID 4 56I013827 Ventura, 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
- Ventura, Ventura County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- E Fork Of Hall Canyon Creek (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
- 646 distinct results, 9 reporting years (2015 to 2025)
- Most recent sample Feb 26, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 2 violation records · 2 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
- 34.309657, -119.248471
- 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
- East Fork Of Hall Canyon, Ventura 93003
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Arundell Barranca-Frontal Pacific Ocean HUC12 180701010203
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
- Chevron Environmental Management Co
- Primary industry (SIC)
- 1311-Crude Petroleum and Natural Gas
- Application ID
- 192701
- NOI processed
- Mar 16, 1998
- Last certified
- Jun 09, 2015
- Facility size
- 9 Acres
- Impervious area
- 98 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 192701 | Industrial | Active | Mar 16, 1998 | — | Jun 09, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- E Fork Of Hall Canyon Creek
- 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.
646 distinct measurements across 15 parameters, most recent sample Feb 26, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 36 | 12 | 0 | Dec 29, 2025 | Feb 26, 2026 |
| 2024 | 24 | 12 | 0 | Mar 04, 2025 | May 06, 2025 |
| 2023 | 84 | 12 | 0 | Sep 28, 2023 | Apr 29, 2024 |
| 2022 | 142 | 12 | 0 | Jan 07, 2023 | Mar 24, 2023 |
| 2019 | 24 | 12 | 0 | Jan 13, 2020 | Apr 23, 2020 |
| 2018 | 96 | 12 | 0 | Jan 29, 2019 | Apr 10, 2019 |
| 2017 | 28 | 14 | 0 | Apr 05, 2018 | Apr 05, 2018 |
| 2016 | 194 | 14 | 0 | Dec 27, 2016 | Apr 04, 2017 |
| 2015 | 18 | 9 | 0 | Jan 21, 2016 | Apr 06, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Benzene | ug/L | 52 | 50 | Jan 21, 2016 | Feb 26, 2026 | Results |
| Ethylbenzene | ug/L | 52 | 50 | Jan 21, 2016 | Feb 26, 2026 | Results |
| Oil and Grease | mg/L | 52 | 37 | Jan 21, 2016 | Feb 26, 2026 | Results |
| pH | SU | 52 | 0 | Jan 21, 2016 | Feb 26, 2026 | Results |
| Toluene | ug/L | 52 | 48 | Jan 21, 2016 | Feb 26, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 52 | 0 | Jan 21, 2016 | Feb 26, 2026 | Results |
| Xylenes, Total | ug/L | 52 | 50 | Jan 21, 2016 | Feb 26, 2026 | Results |
| Boron, Total | ug/L | 50 | 0 | Dec 27, 2016 | Feb 26, 2026 | Results |
| Chloride | mg/L | 50 | 0 | Dec 27, 2016 | Feb 26, 2026 | Results |
| Petroleum Hydrocarbons, Total | mg/L | 50 | 17 | Jan 21, 2016 | Feb 26, 2026 | Results |
| Sodium, Total | mg/L | 50 | 0 | Dec 27, 2016 | Feb 26, 2026 | Results |
| Turbidity | NTU | 48 | 0 | Dec 27, 2016 | Feb 26, 2026 | Results |
Show 3 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| DDT/DDD/DDE, Sum of P,P & O,P Isomers | ug/L | 16 | 16 | Dec 27, 2016 | Apr 05, 2018 | Results |
| Polychlorinated Biphenyls (PCBs), Sum | ug/L | 16 | 16 | Dec 27, 2016 | Apr 05, 2018 | Results |
| TPH as Motor Oil | mg/L | 2 | 1 | Jan 21, 2016 | Apr 06, 2016 | Results |
All results (646 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 26, 2026 | Benzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1370158 | |
| Feb 26, 2026 | Boron, Total | 540 | ug/L | Effluent | Qualifying Storm Event | 1370158 | ||
| Feb 26, 2026 | Chloride | 280 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1370158 | |
| Feb 26, 2026 | Ethylbenzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1370158 | |
| Feb 26, 2026 | Oil and Grease | 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1370158 | |
| Feb 26, 2026 | Petroleum Hydrocarbons, Total | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1370158 | |
| Feb 26, 2026 | pH | 8.24 | SU | Effluent | Qualifying Storm Event | pH_Field | 1370158 | |
| Feb 26, 2026 | Sodium, Total | 290 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1370158 | |
| Feb 26, 2026 | Toluene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1370158 | |
| Feb 26, 2026 | Total Suspended Solids (TSS) | 4.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1370158 | |
| Feb 26, 2026 | Turbidity | 3.6 | NTU | Effluent | Qualifying Storm Event | E180.1 | 1370158 | |
| Feb 26, 2026 | Xylenes, Total | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1370158 | |
| Jan 15, 2026 | Benzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1365213 | |
| Jan 15, 2026 | Boron, Total | 270 | ug/L | Effluent | Qualifying Storm Event | 1365213 | ||
| Jan 15, 2026 | Chloride | 130 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1365213 | |
| Jan 15, 2026 | Ethylbenzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1365213 | |
| Jan 15, 2026 | Oil and Grease | .97 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1365213 | |
| Jan 15, 2026 | Petroleum Hydrocarbons, Total | 1.27 | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1365213 | |
| Jan 15, 2026 | pH | 9.12 | SU | Effluent | Qualifying Storm Event | pH_Field | 1365213 | |
| Jan 15, 2026 | Sodium, Total | 130 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1365213 | |
| Jan 15, 2026 | Toluene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1365213 | |
| Jan 15, 2026 | Total Suspended Solids (TSS) | 8.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1365213 | |
| Jan 15, 2026 | Turbidity | 2.6 | NTU | Effluent | Qualifying Storm Event | E180.1 | 1365213 | |
| Jan 15, 2026 | Xylenes, Total | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1365213 | |
| Dec 29, 2025 | Benzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1364112 | |
| Dec 29, 2025 | Boron, Total | 170 | ug/L | Effluent | Qualifying Storm Event | 1364112 | ||
| Dec 29, 2025 | Chloride | 66 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1364112 | |
| Dec 29, 2025 | Ethylbenzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1364112 | |
| Dec 29, 2025 | Oil and Grease | 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1364112 | |
| Dec 29, 2025 | Petroleum Hydrocarbons, Total | .86 | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1364112 | |
| Dec 29, 2025 | pH | 8.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1364112 | |
| Dec 29, 2025 | Sodium, Total | 84 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1364112 | |
| Dec 29, 2025 | Toluene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1364112 | |
| Dec 29, 2025 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364112 | |
| Dec 29, 2025 | Turbidity | 9.4 | NTU | Effluent | Qualifying Storm Event | E180.1 | 1364112 | |
| Dec 29, 2025 | Xylenes, Total | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1364112 | |
| May 06, 2025 | Benzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1331930 | |
| May 06, 2025 | Boron, Total | 910 | ug/L | Effluent | Qualifying Storm Event | 1331930 | ||
| May 06, 2025 | Chloride | 370 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1331930 | |
| May 06, 2025 | Ethylbenzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1331930 | |
| May 06, 2025 | Oil and Grease | 1 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1331930 | |
| May 06, 2025 | Petroleum Hydrocarbons, Total | 1.08 | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1331930 | |
| May 06, 2025 | pH | 7.36 | SU | Effluent | Qualifying Storm Event | pH_Field | 1331930 | |
| May 06, 2025 | Sodium, Total | 290 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1331930 | |
| May 06, 2025 | Toluene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1331930 | |
| May 06, 2025 | Total Suspended Solids (TSS) | 93 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1331930 | |
| May 06, 2025 | Turbidity | 11 | NTU | Effluent | Qualifying Storm Event | E180.1 | 1331930 | |
| May 06, 2025 | Xylenes, Total | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1331930 | |
| Mar 04, 2025 | Benzene | ND | ug/L | Effluent | Qualifying Storm Event | E624.1 | 1326827 | |
| Mar 04, 2025 | Boron, Total | 650 | ug/L | Effluent | Qualifying Storm Event | 1326827 |
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 | 2 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 15, 2002 – Jun 26, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 1 issued · 0 draft · 1 withdrawn, rescinded or superseded | Jul 15, 2002 – Jun 26, 2023 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jan 05, 2018 – Jan 05, 2018 | Oct 21, 2026 | All inspections |
| Annual reports | 10 | 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 (15 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 09, 2026 | Annual reports | 1334765 | Annual report 2025 | — | |
| Jul 11, 2025 | Annual reports | 1293559 | Annual report 2024 | — | |
| Jul 03, 2024 | Annual reports | 1242597 | Annual report 2023 | — | |
| Jul 12, 2023 | Annual reports | 1188573 | Annual report 2022 | — | |
| Jun 26, 2023 | Enforcement actions | 450034 | NOV (Notice of Violation) | Rescinded | |
| Jun 26, 2023 | Violations | 885221 | Late Report | Violation | Report |
| Jul 08, 2021 | Annual reports | 1067861 | Annual report 2020 | — | |
| Jul 07, 2020 | Annual reports | 985066 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 952589 | Annual report 2018 | — | |
| Jul 13, 2018 | Annual reports | 938003 | Annual report 2017 | — | |
| Jan 05, 2018 | Inspections | 2036115 | B Type compliance | — | No Further Action |
| Jul 11, 2017 | Annual reports | 877198 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 845331 | Annual report 2015 | — | |
| Jul 15, 2002 | Enforcement actions | 249700 | NTC (Notice to Comply) | Historical | Field NTC |
| Jul 15, 2002 | Violations | 223110 | 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.