Bus Maintenance Facility
Active WDID 5S48I018335 Vacaville, Solano County Region 5S · Central Valley (Sacramento)
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Vacaville, Solano County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- 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
- 1,023 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Apr 21, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 5 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
- 38.365848, -121.977855
- 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
- 353 Brown St, Vacaville 95688
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Upper Ulatis Creek HUC12 180201630503
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
- Vacaville Unified School District
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 202060
- NOI processed
- Sep 11, 2003
- Last certified
- Dec 29, 2017
- Facility size
- 5 Acres
- Impervious area
- 1 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 202060 | Industrial | Active | Sep 11, 2003 | — | Dec 29, 2017 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Rain water
- 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.
1,023 distinct measurements across 13 parameters, most recent sample Apr 21, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 172 | 8 | 24 | Oct 13, 2025 | Apr 21, 2026 |
| 2024 | 192 | 8 | 0 | Nov 20, 2024 | Mar 14, 2025 |
| 2023 | 92 | 8 | 0 | Dec 18, 2023 | Feb 07, 2024 |
| 2022 | 120 | 8 | 0 | Nov 08, 2022 | Mar 28, 2023 |
| 2021 | 32 | 8 | 0 | Dec 13, 2021 | Dec 13, 2021 |
| 2020 | 24 | 6 | 0 | Mar 18, 2021 | Mar 18, 2021 |
| 2019 | 48 | 6 | 0 | Dec 11, 2019 | Jan 16, 2020 |
| 2018 | 96 | 8 | 0 | Nov 29, 2018 | Mar 06, 2019 |
| 2017 | 69 | 11 | 0 | Jan 08, 2018 | Apr 06, 2018 |
| 2016 | 109 | 11 | 0 | Dec 15, 2016 | Mar 21, 2017 |
| 2015 | 81 | 9 | 0 | Nov 09, 2015 | Mar 10, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Nitrite Plus Nitrate (as N) | mg/L | 132 | 61 | Nov 09, 2015 | Apr 21, 2026 | Results |
| Oil and Grease | mg/L | 132 | 117 | Nov 09, 2015 | Apr 21, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 132 | 1 | Nov 09, 2015 | Apr 21, 2026 | Results |
| pH | SU | 125 | 0 | Nov 09, 2015 | Apr 21, 2026 | Results |
| Iron, Total | mg/L | 122 | 1 | Nov 09, 2015 | Apr 21, 2026 | Results |
| Zinc, Total | mg/L | 117 | 23 | Nov 09, 2015 | Apr 21, 2026 | Results |
| Phosphorus, Total (as P) | mg/L | 100 | 1 | Nov 09, 2015 | Apr 21, 2026 | Results |
| Lead, Total | mg/L | 97 | 72 | Nov 09, 2015 | Apr 21, 2026 | Results |
| Iron, Total Recoverable | mg/L | 15 | 0 | Dec 15, 2016 | Jan 08, 2018 | Results |
| Lead, Total Recoverable | mg/L | 15 | 13 | Dec 15, 2016 | Jan 08, 2018 | Results |
| Zinc, Total Recoverable | mg/L | 15 | 2 | Dec 15, 2016 | Jan 08, 2018 | Results |
| Phosphate, Total (as PO4) | mg/L | 12 | 0 | Dec 01, 2022 | Mar 28, 2023 | Results |
Show 1 more parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 9 | 2 | Nov 09, 2015 | Mar 10, 2016 | Results |
All results (1,035 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 21, 2026 | Iron, Total | 1.3 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1373210 | |
| Apr 21, 2026 | Iron, Total | 3.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1373210 | |
| Apr 21, 2026 | Iron, Total | .96 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1373210 | |
| Apr 21, 2026 | Iron, Total | .47 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1373210 | |
| Apr 21, 2026 | Lead, Total | DNQ .00184 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 21, 2026 | Lead, Total | DNQ .00306 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 21, 2026 | Lead, Total | DNQ .0015 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 21, 2026 | Lead, Total | DNQ .00122 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 21, 2026 | Nitrite Plus Nitrate (as N) | DNQ .11 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1373210 | |
| Apr 21, 2026 | Nitrite Plus Nitrate (as N) | DNQ .15 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1373210 | |
| Apr 21, 2026 | Nitrite Plus Nitrate (as N) | DNQ .14 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1373210 | |
| Apr 21, 2026 | Nitrite Plus Nitrate (as N) | .24 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1373210 | |
| Apr 21, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373210 | |
| Apr 21, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373210 | |
| Apr 21, 2026 | Oil and Grease | DNQ 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373210 | |
| Apr 21, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373210 | |
| Apr 21, 2026 | pH | 7.12 | SU | Effluent | Qualifying Storm Event | A4500HB | 1373210 | |
| Apr 21, 2026 | pH | 7.22 | SU | Effluent | Qualifying Storm Event | A4500HB | 1373210 | |
| Apr 21, 2026 | pH | 6.93 | SU | Effluent | Qualifying Storm Event | A4500HB | 1373210 | |
| Apr 21, 2026 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 1373210 | |
| Apr 21, 2026 | Phosphorus, Total (as P) | .11 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1373210 | |
| Apr 21, 2026 | Phosphorus, Total (as P) | .15 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1373210 | |
| Apr 21, 2026 | Phosphorus, Total (as P) | .077 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1373210 | |
| Apr 21, 2026 | Phosphorus, Total (as P) | .064 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1373210 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 26 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373210 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 82 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373210 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373210 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373210 | |
| Apr 21, 2026 | Zinc, Total | .065 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 21, 2026 | Zinc, Total | .086 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 21, 2026 | Zinc, Total | .29 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 21, 2026 | Zinc, Total | .13 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1373210 | |
| Apr 10, 2026 | Iron, Total | .92 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372250 | |
| Apr 10, 2026 | Iron, Total | 1.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372250 | |
| Apr 10, 2026 | Iron, Total | 6.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372250 | |
| Apr 10, 2026 | Iron, Total | .53 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372250 | |
| Apr 10, 2026 | Lead, Total | DNQ .00164 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372250 | |
| Apr 10, 2026 | Lead, Total | DNQ .0014 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372250 | |
| Apr 10, 2026 | Lead, Total | DNQ .00488 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372250 | |
| Apr 10, 2026 | Lead, Total | DNQ .00106 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372250 | |
| Apr 10, 2026 | Nitrite Plus Nitrate (as N) | .21 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1372250 | |
| Apr 10, 2026 | Nitrite Plus Nitrate (as N) | .38 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1372250 | |
| Apr 10, 2026 | Nitrite Plus Nitrate (as N) | .4 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1372250 | |
| Apr 10, 2026 | Nitrite Plus Nitrate (as N) | .21 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1372250 | |
| Apr 10, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372250 | |
| Apr 10, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372250 | |
| Apr 10, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372250 | |
| Apr 10, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372250 | |
| Apr 10, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1372250 | 2 versions |
| Apr 10, 2026 | pH | 8.04 | SU | Effluent | Qualifying Storm Event | A4500HB | 1372250 | 2 versions |
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 | 5 | 5 Violation · 0 Potential (preliminary) · 0 Dismissed | Mar 30, 2006 – Jan 01, 2018 | Oct 21, 2026 | All violations |
| Enforcement actions | 5 | 5 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 30, 2007 – Feb 23, 2018 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Mar 14, 2012 – Mar 12, 2024 | 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 (23 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 10, 2026 | Annual reports | 1334109 | Annual report 2025 | — | |
| Jul 15, 2025 | Annual reports | 1292879 | Annual report 2024 | — | |
| Jul 09, 2024 | Annual reports | 1241877 | Annual report 2023 | — | |
| Mar 12, 2024 | Inspections | 2063859 | B Type compliance | Finalized | No Further Action |
| Jul 11, 2023 | Annual reports | 1187803 | Annual report 2022 | — | |
| Jul 14, 2022 | Annual reports | 1111060 | Annual report 2021 | — | |
| Jul 13, 2021 | Annual reports | 1066991 | Annual report 2020 | — | |
| Jul 07, 2020 | Annual reports | 984140 | Annual report 2019 | — | |
| Jul 17, 2019 | Annual reports | 951637 | Annual report 2018 | — | |
| Jun 26, 2018 | Annual reports | 937046 | Annual report 2017 | — | |
| Feb 23, 2018 | Enforcement actions | 429221 | NOV (Notice of Violation) | Active | |
| Jan 01, 2018 | Violations | 866323 | Late Report | Violation | Report |
| Jul 14, 2017 | Annual reports | 876192 | Annual report 2016 | — | |
| Jun 23, 2016 | Annual reports | 847309 | Annual report 2015 | — | |
| Mar 14, 2012 | Inspections | 2014901 | B Type compliance | — | No Further Action |
| Oct 14, 2010 | Enforcement actions | 403041 | SEL (Staff Enforcement Letter) | Historical | |
| Oct 14, 2010 | Violations | 842794 | Deficient BMP Implementation | Violation | Report |
| Oct 23, 2009 | Enforcement actions | 401737 | SEL (Staff Enforcement Letter) | Historical | |
| Jul 01, 2009 | Violations | 841577 | Deficient BMP Implementation | Violation | Report |
| May 01, 2008 | Enforcement actions | 347394 | SEL (Staff Enforcement Letter) | Active | |
| Jul 01, 2007 | Violations | 765433 | Deficient BMP Implementation | Violation | Storm Water Discharge |
| Mar 30, 2007 | Enforcement actions | 328427 | NOV (Notice of Violation) | Active | |
| Mar 30, 2006 | Violations | 511862 | Deficient Report | Violation | Report |
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.