Ukiah Unified School District
Active WDID 1 23I025823 Ukiah, 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
- Ukiah, Mendocino County
- Region 1 · North Coast · 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 45 distinct results, 1 reporting year (2015 to 2015)
- Most recent sample Apr 22, 2016 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 1 violation record · 1 enforcement action
- 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
- 39.1569, -123.217
- Precision
- 3 decimal places low precision
- Shared point
- No
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 710 Maple Ave 710 Maple, Ukiah 95482
- Regional Water Board
- 1 — North Coast
HUC12 watershed Evidence: spatial
- Orrs Creek-Russian River HUC12 180101100403
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
- Ukiah Unified School District
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 458344
- NOI processed
- Jul 09, 2015
- Last certified
- Feb 21, 2023
- Facility size
- 3 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 458344 | Industrial | Active | Jul 09, 2015 | — | Feb 21, 2023 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Orrs Creek
- Discharges directly / indirectly
- Y / N (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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Russian River HU, Upper Russian River HA, Ukiah HSA CAR1143107119990615121503 | 36 m | listed | 8 |
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.
45 distinct measurements across 3 parameters, most recent sample Apr 22, 2016.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2015 | 45 | 3 | 0 | Dec 03, 2015 | Apr 22, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 15 | 4 | Dec 03, 2015 | Apr 22, 2016 | Results |
| pH | SU | 15 | 0 | Dec 03, 2015 | Apr 22, 2016 | Results |
| Total Suspended Solids (TSS) | mg/L | 15 | 1 | Dec 03, 2015 | Apr 22, 2016 | Results |
All results (45 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 22, 2016 | Oil and Grease | 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Apr 22, 2016 | Oil and Grease | 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Apr 22, 2016 | Oil and Grease | 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Apr 22, 2016 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Apr 22, 2016 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Apr 22, 2016 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Apr 22, 2016 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Apr 22, 2016 | Total Suspended Solids (TSS) | 120 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Apr 22, 2016 | Total Suspended Solids (TSS) | 63 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Mar 21, 2016 | Oil and Grease | 4.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Mar 21, 2016 | Oil and Grease | 7.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Mar 21, 2016 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Mar 21, 2016 | Oil and Grease | 8 | mg/L | Influent | Qualifying Storm Event | E1664A | 888489 | |
| Mar 21, 2016 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Mar 21, 2016 | pH | 7.18 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Mar 21, 2016 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Mar 21, 2016 | pH | 7.13 | SU | Influent | Qualifying Storm Event | A4500HB | 888489 | |
| Mar 21, 2016 | Total Suspended Solids (TSS) | 86 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Mar 21, 2016 | Total Suspended Solids (TSS) | 110 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Mar 21, 2016 | Total Suspended Solids (TSS) | 110 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Mar 21, 2016 | Total Suspended Solids (TSS) | 350 | mg/L | Influent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 10, 2015 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 10, 2015 | Oil and Grease | 2.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 10, 2015 | Oil and Grease | 8.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 10, 2015 | Oil and Grease | 4.9 | mg/L | Influent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 10, 2015 | pH | 6.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 10, 2015 | pH | 6.63 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 10, 2015 | pH | 6.79 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 10, 2015 | pH | 6.58 | SU | Influent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 10, 2015 | Total Suspended Solids (TSS) | 7.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 10, 2015 | Total Suspended Solids (TSS) | 140 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 10, 2015 | Total Suspended Solids (TSS) | 980 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 10, 2015 | Total Suspended Solids (TSS) | 93 | mg/L | Influent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 03, 2015 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 03, 2015 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 03, 2015 | Oil and Grease | 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 03, 2015 | Oil and Grease | ND | mg/L | Influent | Qualifying Storm Event | E1664A | 888489 | |
| Dec 03, 2015 | pH | 6.74 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 03, 2015 | pH | 6.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 03, 2015 | pH | 6.74 | SU | Effluent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 03, 2015 | pH | 6.78 | SU | Influent | Qualifying Storm Event | A4500HB | 888489 | |
| Dec 03, 2015 | Total Suspended Solids (TSS) | 27 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 03, 2015 | Total Suspended Solids (TSS) | 25 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 03, 2015 | Total Suspended Solids (TSS) | 36 | mg/L | Effluent | Qualifying Storm Event | A2540D | 888489 | |
| Dec 03, 2015 | Total Suspended Solids (TSS) | 21 | mg/L | Influent | Qualifying Storm Event | A2540D | 888489 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Aug 15, 2015 – Aug 15, 2015 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Oct 30, 2015 – Oct 30, 2015 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Aug 21, 2017 – Aug 21, 2017 | 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 (13 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Mar 09, 2026 | Annual reports | 1338583 | Annual report 2025 | — | |
| May 27, 2025 | Annual reports | 1297583 | Annual report 2024 | — | |
| Jul 18, 2024 | Annual reports | 1246827 | Annual report 2023 | — | |
| Mar 07, 2023 | Annual reports | 1116764 | Annual report 2021 | — | |
| Mar 07, 2023 | Annual reports | 1192995 | Annual report 2022 | — | |
| Mar 07, 2023 | Annual reports | 981999 | Annual report 2019 | — | |
| Mar 06, 2023 | Annual reports | 1064947 | Annual report 2020 | — | |
| May 10, 2018 | Annual reports | 958328 | Annual report 2018 | — | |
| Aug 21, 2017 | Inspections | 2034659 | B Type compliance | — | No Further Action |
| Mar 28, 2017 | Annual reports | 883298 | Annual report 2016 | — | |
| Jul 07, 2016 | Annual reports | 848463 | Annual report 2015 | — | |
| Oct 30, 2015 | Enforcement actions | 421000 | NNC (Notice of Non-Compliance) | Active | |
| Aug 15, 2015 | Violations | 858679 | Failure to Obtain Permit | 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.