Natomas Unified School District
Terminated WDID 5S34I026529 Sacramento, Sacramento County Region 5S · Central Valley (Sacramento)
At a glance
- Permit Evidence: SMARTS record
- Terminated Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Sacramento, Sacramento County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- Receiving water
- Natomas East Drainage Canal (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
- 1 waterbody; 0 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 40 distinct results, 7 reporting years (2015 to 2022)
- Most recent sample Mar 14, 2023 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 1 violation record · 0 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
- 38.647563, -121.505934
- Precision
- 6 decimal places
- Shared point
- 2 permits report this exact point
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 1931 Arena Blvd 1931 Arena Blvd, Sacramento 95834
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Natomas Main Drainage Canal-Sacramento River HUC12 180201610402
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
- Terminated
- Operator
- Natomas Unified School District
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 471012
- NOI processed
- Apr 12, 2016
- Termination effective
- Aug 08, 2024
- Last certified
- Aug 08, 2024
- Facility size
- 6.5 Acres
- Impervious area
- 90 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 471012 | Industrial | Terminated | Apr 12, 2016 | Aug 08, 2024 | Aug 08, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Natomas East Drainage Canal
- 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 |
|---|---|---|---|
| East Drainage Canal (Sacramento County) CAR5192200020190703028807 | 111 m | not listed | 0 |
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.
40 distinct measurements across 4 parameters, most recent sample Mar 14, 2023.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2022 | 7 | 4 | 0 | Nov 08, 2022 | Mar 14, 2023 |
| 2021 | 5 | 3 | 0 | Oct 21, 2021 | May 09, 2022 |
| 2020 | 7 | 3 | 0 | Dec 28, 2020 | Feb 02, 2021 |
| 2019 | 6 | 3 | 0 | Sep 16, 2019 | Mar 16, 2020 |
| 2017 | 3 | 3 | 0 | Nov 15, 2017 | Nov 15, 2017 |
| 2016 | 6 | 3 | 0 | Dec 08, 2016 | Jan 20, 2017 |
| 2015 | 6 | 3 | 0 | Dec 21, 2015 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 14 | 3 | Dec 21, 2015 | Mar 14, 2023 | Results |
| Total Suspended Solids (TSS) | mg/L | 14 | 0 | Dec 21, 2015 | Mar 14, 2023 | Results |
| pH | SU | 9 | 0 | Dec 08, 2016 | Mar 14, 2023 | Results |
| Methylene Blue Active Substances (MBAS) | mg/L | 3 | 2 | Dec 21, 2015 | Nov 08, 2022 | Results |
All results (40 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 14, 2023 | Oil and Grease | DNQ .7 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1231312 | |
| Mar 14, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1231312 | |
| Mar 14, 2023 | Total Suspended Solids (TSS) | 8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1231312 | |
| Nov 08, 2022 | Methylene Blue Active Substances (MBAS) | ND | mg/L | Effluent | Qualifying Storm Event | A5540C | 1217771 | |
| Nov 08, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1217771 | |
| Nov 08, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1217771 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 6.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1217771 | |
| May 09, 2022 | Oil and Grease | 4.2 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1186512 | |
| May 09, 2022 | Total Suspended Solids (TSS) | 78 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186512 | |
| Oct 21, 2021 | Oil and Grease | 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1170048 | |
| Oct 21, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1170048 | |
| Oct 21, 2021 | Total Suspended Solids (TSS) | 89 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1170048 | |
| Feb 02, 2021 | Oil and Grease | 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1141766 | |
| Feb 02, 2021 | Total Suspended Solids (TSS) | 27 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1141766 | |
| Jan 28, 2021 | Oil and Grease | 1.3 | mg/L | Effluent | Non-Qualifying Storm Event | E1664B | 1141772 | |
| Jan 28, 2021 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Non-Qualifying Storm Event | A2540D | 1141772 | |
| Dec 28, 2020 | Oil and Grease | 3.5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1138644 | |
| Dec 28, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1138644 | |
| Dec 28, 2020 | Total Suspended Solids (TSS) | 110 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1138644 | |
| Mar 16, 2020 | Oil and Grease | .89 | mg/L | Effluent | Non-Qualifying Storm Event | E1664B | 1105342 | |
| Mar 16, 2020 | pH | 7 | SU | Effluent | Non-Qualifying Storm Event | pH_Field | 1105342 | |
| Mar 16, 2020 | Total Suspended Solids (TSS) | 34 | mg/L | Effluent | Non-Qualifying Storm Event | A2540D | 1105342 | |
| Sep 16, 2019 | Oil and Grease | 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1090356 | |
| Sep 16, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1090356 | |
| Sep 16, 2019 | Total Suspended Solids (TSS) | 170 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1090356 | |
| Nov 15, 2017 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 977378 | |
| Nov 15, 2017 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 977378 | |
| Nov 15, 2017 | Total Suspended Solids (TSS) | 30 | mg/L | Effluent | Qualifying Storm Event | A2540D | 977378 | |
| Jan 20, 2017 | Oil and Grease | 4.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 925935 | |
| Jan 20, 2017 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 925935 | |
| Jan 20, 2017 | Total Suspended Solids (TSS) | 68 | mg/L | Effluent | Qualifying Storm Event | A2540D | 925935 | |
| Dec 08, 2016 | Oil and Grease | 4.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 910825 | |
| Dec 08, 2016 | pH | 4 | SU | Effluent | Qualifying Storm Event | pH_Paper | 910825 | |
| Dec 08, 2016 | Total Suspended Solids (TSS) | 73 | mg/L | Effluent | Qualifying Storm Event | A2540D | 910825 | |
| Jan 05, 2016 | Methylene Blue Active Substances (MBAS) | < .067 | mg/L | Effluent | Qualifying Storm Event | A5540C | 872493 | |
| Jan 05, 2016 | Oil and Grease | 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 872493 | |
| Jan 05, 2016 | Total Suspended Solids (TSS) | 7.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 872493 | |
| Dec 21, 2015 | Methylene Blue Active Substances (MBAS) | .24 | mg/L | Effluent | Qualifying Storm Event | A5540C | 872493 | |
| Dec 21, 2015 | Oil and Grease | 4.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 872493 | |
| Dec 21, 2015 | Total Suspended Solids (TSS) | 7.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 872493 |
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 | Jul 15, 2018 – Jul 15, 2018 | Oct 21, 2026 | All violations |
| Enforcement actions | 0 | 0 issued · 0 draft · 0 withdrawn, rescinded or superseded | — | Oct 21, 2026 | |
| Inspections | 1 | inspections, not findings | Mar 31, 2021 – Mar 31, 2021 | Oct 21, 2026 | All inspections |
| Annual reports | 9 | certified reports (contents not shown) | 2015 – 2023 | 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 (11 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 15, 2024 | Annual reports | 1247082 | Annual report 2023 | — | |
| Jun 20, 2023 | Annual reports | 1193270 | Annual report 2022 | — | |
| Jun 20, 2022 | Annual reports | 1117068 | Annual report 2021 | — | |
| Jun 24, 2021 | Annual reports | 1065267 | Annual report 2020 | — | |
| Mar 31, 2021 | Inspections | 2050765 | B Type compliance | Performed | Additional Info Required |
| Jun 30, 2020 | Annual reports | 982341 | Annual report 2019 | — | |
| Jul 15, 2019 | Annual reports | 958679 | Annual report 2018 | — | |
| Sep 05, 2018 | Annual reports | 944117 | Annual report 2017 | — | |
| Jul 15, 2018 | Violations | 867475 | Late Report | Violation | Report |
| Jul 18, 2017 | Annual reports | 883592 | Annual report 2016 | — | |
| Jun 28, 2016 | Annual reports | 869038 | Annual report 2015 | — |
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.