Sch Bus Manintenance Yard
Active WDID 1 23I018049 Mendocino, Mendocino County Region 1 · North Coast
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Mendocino, Mendocino County
- Region 1 · North Coast · Location · Statewide map
- Receiving water
- Pacific Ocean (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; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 64 distinct results, 6 reporting years (2015 to 2023)
- Most recent sample Jan 16, 2024 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 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
- 39.312318, -123.782837
- 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
- 44141 Little Lake Rd, Mendocino 95460
- Regional Water Board
- 1 — North Coast
HUC12 watershed Evidence: spatial
- Hare Creek-Frontal Pacific Ocean HUC12 180101080703
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
- Mendocino Unified School District
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 178447
- NOI processed
- Apr 03, 2003
- Last certified
- Nov 05, 2024
- Facility size
- 6144 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 178447 | Industrial | Active | Apr 03, 2003 | — | Nov 05, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Pacific Ocean
- 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
290 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 |
|---|---|---|---|
| Mendocino Coast HU, Big River HA, Big River CAR1133004319980708174237 | 952 m | listed | 4 |
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.
64 distinct measurements across 4 parameters, most recent sample Jan 16, 2024.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 6 | 3 | 0 | Oct 10, 2023 | Jan 16, 2024 |
| 2022 | 10 | 4 | 0 | Nov 07, 2022 | Dec 08, 2022 |
| 2021 | 12 | 3 | 0 | Sep 27, 2021 | Apr 11, 2022 |
| 2017 | 9 | 3 | 0 | Dec 20, 2017 | Mar 13, 2018 |
| 2016 | 12 | 4 | 0 | Jan 18, 2017 | Nov 07, 2017 |
| 2015 | 15 | 4 | 0 | Sep 16, 2015 | Jan 13, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Total Suspended Solids (TSS) | mg/L | 19 | 0 | Sep 16, 2015 | Jan 16, 2024 | Results |
| Oil and Grease | mg/L | 18 | 11 | Sep 16, 2015 | Jan 16, 2024 | Results |
| pH | SU | 15 | 0 | Sep 16, 2015 | Jan 16, 2024 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 12 | 1 | Sep 16, 2015 | Nov 07, 2022 | Results |
All results (64 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Jan 16, 2024 | Oil and Grease | 3.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1274697 | |
| Jan 16, 2024 | pH | 6.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1274697 | |
| Jan 16, 2024 | Total Suspended Solids (TSS) | 25 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1274697 | |
| Oct 10, 2023 | Oil and Grease | DNQ 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1267845 | |
| Oct 10, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1267845 | |
| Oct 10, 2023 | Total Suspended Solids (TSS) | 47 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1267845 | |
| Dec 08, 2022 | Oil and Grease | DNQ 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1221137 | |
| Dec 08, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1221137 | |
| Dec 08, 2022 | Total Suspended Solids (TSS) | 23 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1221137 | |
| Dec 01, 2022 | Oil and Grease | DNQ 2.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1219953 | |
| Dec 01, 2022 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1219953 | |
| Dec 01, 2022 | Total Suspended Solids (TSS) | 53 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1219953 | |
| Nov 07, 2022 | Electrical Conductivity @ 25 Deg. C | 49 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1219948 | |
| Nov 07, 2022 | Oil and Grease | DNQ 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1219948 | |
| Nov 07, 2022 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1219948 | |
| Nov 07, 2022 | Total Suspended Solids (TSS) | 36 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1219948 | |
| Apr 11, 2022 | Electrical Conductivity @ 25 Deg. C | 49 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1182224 | |
| Apr 11, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182224 | |
| Apr 11, 2022 | Total Suspended Solids (TSS) | 3.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182224 | |
| Apr 04, 2022 | Electrical Conductivity @ 25 Deg. C | 77 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1182226 | |
| Apr 04, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182226 | |
| Apr 04, 2022 | Total Suspended Solids (TSS) | 230 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182226 | |
| Oct 21, 2021 | Electrical Conductivity @ 25 Deg. C | DNQ 11 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1182221 | |
| Oct 21, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182221 | |
| Oct 21, 2021 | Total Suspended Solids (TSS) | 5.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182221 | |
| Sep 27, 2021 | Electrical Conductivity @ 25 Deg. C | 24 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 1182219 | |
| Sep 27, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1182219 | |
| Sep 27, 2021 | Total Suspended Solids (TSS) | 6.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1182219 | |
| Mar 13, 2018 | Oil and Grease | 3.7 | mg/L | Effluent | Qualifying Storm Event | A5220B | 999720 | |
| Mar 13, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | A4500HB | 999720 | |
| Mar 13, 2018 | Total Suspended Solids (TSS) | 5.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 999720 | |
| Jan 08, 2018 | Oil and Grease | 1 | mg/L | Effluent | Qualifying Storm Event | A5220B | 999720 | |
| Jan 08, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | A4500HB | 999720 | |
| Jan 08, 2018 | Total Suspended Solids (TSS) | 53 | mg/L | Effluent | Qualifying Storm Event | A2540D | 999720 | |
| Dec 20, 2017 | Oil and Grease | 5.3 | mg/L | Effluent | Qualifying Storm Event | A5220B | 999720 | |
| Dec 20, 2017 | pH | 6 | SU | Effluent | Qualifying Storm Event | A4500HB | 999720 | |
| Dec 20, 2017 | Total Suspended Solids (TSS) | 16 | mg/L | Effluent | Qualifying Storm Event | A2540D | 999720 | |
| Nov 07, 2017 | Electrical Conductivity @ 25 Deg. C | 40 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 936021 | |
| Nov 07, 2017 | Oil and Grease | 1.8 | mg/L | Effluent | Qualifying Storm Event | A5220B | 936021 | |
| Nov 07, 2017 | pH | 7.14 | SU | Effluent | Qualifying Storm Event | A4500HB | 936021 | |
| Nov 07, 2017 | Total Suspended Solids (TSS) | 46 | mg/L | Effluent | Qualifying Storm Event | A2540D | 936021 | |
| Mar 24, 2017 | Electrical Conductivity @ 25 Deg. C | 12 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 936025 | |
| Mar 24, 2017 | Oil and Grease | 1.6 | mg/L | Effluent | Qualifying Storm Event | A5220B | 936025 | |
| Mar 24, 2017 | pH | 6.82 | SU | Effluent | Qualifying Storm Event | A4500HB | 936025 | |
| Mar 24, 2017 | Total Suspended Solids (TSS) | 36 | mg/L | Effluent | Qualifying Storm Event | A2540D | 936025 | |
| Jan 18, 2017 | Electrical Conductivity @ 25 Deg. C | 8.8 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 928279 | |
| Jan 18, 2017 | Oil and Grease | 4.3 | mg/L | Effluent | Qualifying Storm Event | A5220B | 928279 | |
| Jan 18, 2017 | pH | 6.77 | SU | Effluent | Qualifying Storm Event | A4500HB | 928279 | |
| Jan 18, 2017 | Total Suspended Solids (TSS) | 67 | mg/L | Effluent | Qualifying Storm Event | A2540D | 928279 | |
| Jan 13, 2016 | Electrical Conductivity @ 25 Deg. C | 130 | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 869915 |
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 01, 2003 – Mar 29, 2022 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 13, 2003 – Mar 29, 2022 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Jun 22, 2010 – Mar 29, 2022 | 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 | 1 | reports, by parameter | 2023-24 – 2023-24 | Oct 21, 2026 | All reports |
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 (19 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 13, 2026 | Annual reports | 1336903 | Annual report 2025 | — | |
| Jul 14, 2025 | Annual reports | 1295791 | Annual report 2024 | — | |
| Aug 07, 2023 | Annual reports | 1191041 | Annual report 2022 | — | |
| Aug 07, 2023 | Annual reports | 1244957 | Annual report 2023 | — | |
| May 11, 2022 | Annual reports | 1114569 | Annual report 2021 | — | |
| Mar 29, 2022 | Enforcement actions | 446367 | Verbal Communication | Active | |
| Mar 29, 2022 | Inspections | 2055599 | B Type compliance | Finalized | Additional Info Required |
| Mar 29, 2022 | Violations | 881543 | Deficient Report | Violation | Inspection |
| Jul 14, 2021 | Annual reports | 1070664 | Annual report 2020 | — | |
| Aug 21, 2020 | Annual reports | 988074 | Annual report 2019 | — | |
| Sep 03, 2019 | Annual reports | 955703 | Annual report 2018 | — | |
| May 08, 2018 | Annual reports | 941126 | Annual report 2017 | — | |
| Jun 27, 2017 | Annual reports | 880496 | Annual report 2016 | — | |
| Jan 18, 2017 | Inspections | 2032467 | B Type compliance | — | No Further Action |
| Aug 03, 2016 | Annual reports | 847509 | Annual report 2015 | — | |
| Jun 22, 2010 | Inspections | 2007402 | B Type compliance | — | Follow-up Inspection Needed |
| Aug 13, 2003 | Enforcement actions | 251023 | 13267 Letter/Order (Water Code section 13267 letter or order) | Historical | UNKNOWN |
| Jul 01, 2003 | Violations | 247322 | Deficient Report | Violation | Inspection |
| — | Water-quality-based corrective action reports | 1252068 | WQBCAR 2023-24 | — | Oil and Grease, pH, Total Suspended Solids (TSS) |
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.