Omnitrans West Valley
Active WDID 8 36I000550 Montclair, San Bernardino County Region 8 · Santa Ana
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Montclair, San Bernardino County
- Region 8 · Santa Ana · Location · Statewide map
- Receiving water
- San Antonio Creek (as reported by the facility)
- Evidence: identification corroborated San Antonio Creek Details
- Identified receiving water on the 2026 303(d) list
- Yes · 1 Appendix A decision, category 5 Evidence: State-published
- Describes the waterbody, not this facility · Waterbody profile
- 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
- 129 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 19, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 3 violation records · 4 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
- 34.0925, -117.70079
- 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
- 4748 Arrow Hwy, Montclair 91763
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Upper Chino Creek HUC12 180702030702
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
- Omnitrans EV Paratransit
- Primary industry (SIC)
- 4111-Local and Suburban Transit
- Secondary SIC
- 4173-Terminal and Service Facilities for Motor Vehicle Passenger Transportation
- Application ID
- 213087
- NOI processed
- Mar 16, 1992
- Last certified
- Jun 04, 2026
- Facility size
- 6 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 213087 | Industrial | Active | Mar 16, 1992 | — | Jun 04, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- San Antonio Creek
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: identification corroborated San Antonio Creek CAR8012100019991013144655
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 28 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
San Antonio Creek is on the 2026 Clean Water Act section 303(d) list (1 Appendix A decision; category 5).
| Pollutant | Category | Listing decision | TMDL requirement | Decision ID |
|---|---|---|---|---|
| pH | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 150263 |
Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. State Board adoption 2026-02-03; USEPA approval not confirmed. A listing describes the waterbody, not this facility. Waterbody profile.
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 |
|---|---|---|---|
| San Antonio Creek CAR8012100019991013144655 | 28 m | listed | 1 |
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.
129 distinct measurements across 3 parameters, most recent sample Feb 19, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 6 | 3 | 0 | Feb 19, 2026 | Feb 19, 2026 |
| 2024 | 6 | 3 | 0 | Feb 13, 2025 | Feb 13, 2025 |
| 2023 | 12 | 3 | 0 | Feb 20, 2024 | Mar 23, 2024 |
| 2022 | 18 | 3 | 0 | Nov 08, 2022 | May 04, 2023 |
| 2021 | 12 | 3 | 0 | Oct 25, 2021 | Dec 09, 2021 |
| 2020 | 6 | 3 | 0 | Jan 22, 2021 | Jan 28, 2021 |
| 2019 | 12 | 3 | 0 | Dec 04, 2019 | Mar 12, 2020 |
| 2018 | 12 | 3 | 0 | Nov 29, 2018 | Dec 06, 2018 |
| 2017 | 9 | 3 | 0 | Jan 09, 2018 | Jan 19, 2018 |
| 2016 | 24 | 3 | 0 | Oct 24, 2016 | Feb 17, 2017 |
| 2015 | 12 | 3 | 0 | Sep 15, 2015 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 43 | 21 | Sep 15, 2015 | Feb 19, 2026 | Results |
| pH | SU | 43 | 0 | Sep 15, 2015 | Feb 19, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 43 | 0 | Sep 15, 2015 | Feb 19, 2026 | Results |
All results (129 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 19, 2026 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369507 | |
| Feb 19, 2026 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369507 | |
| Feb 19, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1369507 | |
| Feb 19, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1369507 | |
| Feb 19, 2026 | Total Suspended Solids (TSS) | 3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369507 | |
| Feb 19, 2026 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369507 | |
| Feb 13, 2025 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1325410 | |
| Feb 13, 2025 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1325410 | |
| Feb 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1325410 | |
| Feb 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1325410 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325410 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 16 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325410 | |
| Mar 23, 2024 | Oil and Grease | 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1284147 | |
| Mar 23, 2024 | Oil and Grease | 2.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1284147 | |
| Mar 23, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1284147 | |
| Mar 23, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1284147 | |
| Mar 23, 2024 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1284147 | |
| Mar 23, 2024 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1284147 | |
| Feb 20, 2024 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281953 | |
| Feb 20, 2024 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281953 | |
| Feb 20, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1281953 | |
| Feb 20, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1281953 | |
| Feb 20, 2024 | Total Suspended Solids (TSS) | 940 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281953 | |
| Feb 20, 2024 | Total Suspended Solids (TSS) | 33 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281953 | |
| May 04, 2023 | Oil and Grease | 4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1237413 | |
| May 04, 2023 | Oil and Grease | ND 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1237413 | |
| May 04, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1237413 | |
| May 04, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1237413 | |
| May 04, 2023 | Total Suspended Solids (TSS) | 16 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1237413 | |
| May 04, 2023 | Total Suspended Solids (TSS) | 21 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1237413 | |
| Feb 24, 2023 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1230757 | |
| Feb 24, 2023 | Oil and Grease | 4.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1230757 | |
| Feb 24, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1230757 | |
| Feb 24, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1230757 | |
| Feb 24, 2023 | Total Suspended Solids (TSS) | 9.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1230757 | |
| Feb 24, 2023 | Total Suspended Solids (TSS) | 20 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1230757 | |
| Nov 08, 2022 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1234973 | |
| Nov 08, 2022 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1234973 | |
| Nov 08, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1234973 | |
| Nov 08, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1234973 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 430 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1234973 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 81 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1234973 | |
| Dec 09, 2021 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1175035 | |
| Dec 09, 2021 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1175035 | |
| Dec 09, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1175035 | |
| Dec 09, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1175035 | |
| Dec 09, 2021 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1175035 | |
| Dec 09, 2021 | Total Suspended Solids (TSS) | 5.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1175035 | |
| Oct 25, 2021 | Oil and Grease | 2.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1169100 | |
| Oct 25, 2021 | Oil and Grease | 8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1169100 |
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 | 3 | 3 Violation · 0 Potential (preliminary) · 0 Dismissed | Jan 01, 2024 – Mar 19, 2025 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 4 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 16, 1992 – Apr 15, 2025 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Jan 28, 2020 – Mar 19, 2025 | 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 (20 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 04, 2026 | Annual reports | 1336356 | Annual report 2025 | — | |
| Jun 16, 2025 | Annual reports | 1295218 | Annual report 2024 | — | |
| Apr 15, 2025 | Enforcement actions | 455774 | NOV (Notice of Violation) | Historical | |
| Mar 19, 2025 | Inspections | 2067442 | Complaint | Finalized | Follow-up Inspection Needed |
| Mar 19, 2025 | Violations | 891083 | Deficient BMP Implementation | Violation | Inspection |
| Mar 19, 2025 | Violations | 891084 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Jul 08, 2024 | Annual reports | 1244350 | Annual report 2023 | — | |
| Jan 01, 2024 | Violations | 891085 | Late Report | Violation | Internal Report |
| Jun 08, 2023 | Annual reports | 1190400 | Annual report 2022 | — | |
| Jun 08, 2022 | Annual reports | 1113879 | Annual report 2021 | — | |
| Jul 01, 2021 | Annual reports | 1069944 | Annual report 2020 | — | |
| Jun 30, 2020 | Annual reports | 987297 | Annual report 2019 | — | |
| Jan 28, 2020 | Inspections | 2046126 | B Type compliance | — | No Further Action |
| Jun 12, 2019 | Annual reports | 954902 | Annual report 2018 | — | |
| Jun 20, 2018 | Annual reports | 940320 | Annual report 2017 | — | |
| May 19, 2017 | Annual reports | 879642 | Annual report 2016 | — | |
| Jun 23, 2016 | Annual reports | 841380 | Annual report 2015 | — | |
| Mar 16, 1992 | Enforcement actions | 310451 | NNC (Notice of Non-Compliance) | Active | 97-03DWQ |
| Mar 16, 1992 | Enforcement actions | 310452 | NNC (Notice of Non-Compliance) | Active | 97-03DWQ |
| Mar 16, 1992 | Enforcement actions | 310624 | NNC (Notice of Non-Compliance) | Active | 97-03DWQ |
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.