Irvine Unified School District
Active WDID 8 30I001964 Irvine, Orange 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
- Irvine, Orange County
- Region 8 · Santa Ana · 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
- 76 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Mar 19, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 6 violation records · 7 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
- 33.680421, -117.755283
- 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
- 100 Nightmist, Irvine 92618
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Lower San Diego Creek HUC12 180702040103
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
- Irvine Unified School District
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 208240
- NOI processed
- Mar 30, 1992
- Last certified
- Jul 14, 2020
- Facility size
- 8 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 208240 | Industrial | Active | Mar 30, 1992 | — | Jul 14, 2020 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- —
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
No receiving-water text was reported for this permit.
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.
76 distinct measurements across 4 parameters, most recent sample Mar 19, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 9 | 3 | 0 | Oct 14, 2025 | Mar 19, 2026 |
| 2024 | 3 | 3 | 0 | Feb 12, 2025 | Feb 12, 2025 |
| 2023 | 6 | 3 | 0 | Jan 22, 2024 | Feb 01, 2024 |
| 2022 | 9 | 3 | 0 | Nov 08, 2022 | Jan 10, 2023 |
| 2021 | 9 | 3 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 12 | 3 | 0 | Dec 28, 2020 | Mar 15, 2021 |
| 2019 | 9 | 3 | 0 | Dec 23, 2019 | Mar 23, 2020 |
| 2018 | 6 | 3 | 0 | Nov 29, 2018 | Dec 05, 2018 |
| 2017 | 3 | 3 | 0 | Jan 09, 2018 | Jan 09, 2018 |
| 2016 | 2 | 2 | 0 | Mar 22, 2017 | Mar 22, 2017 |
| 2015 | 8 | 4 | 0 | Jan 05, 2016 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 25 | 0 | Jan 05, 2016 | Mar 19, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 25 | 0 | Jan 05, 2016 | Mar 19, 2026 | Results |
| Oil and Grease | mg/L | 24 | 4 | Jan 05, 2016 | Mar 19, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 2 | 0 | Jan 05, 2016 | Jan 05, 2016 | Results |
All results (76 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 19, 2026 | Oil and Grease | 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1368714 | |
| Mar 19, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1368714 | |
| Mar 19, 2026 | Total Suspended Solids (TSS) | 7.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1368714 | |
| Nov 19, 2025 | Oil and Grease | 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1360322 | |
| Nov 19, 2025 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | A4500HB | 1360322 | |
| Nov 19, 2025 | Total Suspended Solids (TSS) | 56 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1360322 | |
| Oct 14, 2025 | Oil and Grease | .86 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1356706 | |
| Oct 14, 2025 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1356706 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 25 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1356706 | |
| Feb 12, 2025 | Oil and Grease | 3.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1323046 | |
| Feb 12, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1323046 | |
| Feb 12, 2025 | Total Suspended Solids (TSS) | 58 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1323046 | |
| Feb 01, 2024 | Oil and Grease | .57 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1275436 | |
| Feb 01, 2024 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1275436 | |
| Feb 01, 2024 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1275436 | |
| Jan 22, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1273355 | |
| Jan 22, 2024 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 1273355 | |
| Jan 22, 2024 | Total Suspended Solids (TSS) | 22 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1273355 | |
| Jan 10, 2023 | Oil and Grease | 2.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1223808 | |
| Jan 10, 2023 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1223808 | |
| Jan 10, 2023 | Total Suspended Solids (TSS) | 41 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1223808 | |
| Jan 05, 2023 | Oil and Grease | .77 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1223814 | |
| Jan 05, 2023 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1223814 | |
| Jan 05, 2023 | Total Suspended Solids (TSS) | 26 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1223814 | |
| Nov 08, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216470 | |
| Nov 08, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1216470 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 2.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216470 | |
| Mar 28, 2022 | Oil and Grease | .49 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1180046 | |
| Mar 28, 2022 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1180046 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 7.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1180046 | |
| Dec 14, 2021 | Oil and Grease | 1.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1175084 | |
| Dec 14, 2021 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1175084 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 32 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1175084 | |
| Oct 25, 2021 | Oil and Grease | .57 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1169477 | |
| Oct 25, 2021 | pH | 6 | SU | Effluent | Qualifying Storm Event | A4500HB | 1169477 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 44 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1169477 | |
| Mar 15, 2021 | Oil and Grease | .95 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1150987 | |
| Mar 15, 2021 | pH | 6.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 1150987 | |
| Mar 15, 2021 | Total Suspended Solids (TSS) | 8.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1150987 | |
| Mar 03, 2021 | Oil and Grease | 1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1150985 | |
| Mar 03, 2021 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1150985 | |
| Mar 03, 2021 | Total Suspended Solids (TSS) | 22 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1150985 | |
| Jan 29, 2021 | Oil and Grease | 6.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1150982 | |
| Jan 29, 2021 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1150982 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | 19 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1150982 | |
| Dec 28, 2020 | Oil and Grease | 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1150979 | |
| Dec 28, 2020 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1150979 | |
| Dec 28, 2020 | Total Suspended Solids (TSS) | 110 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1150979 | |
| Mar 23, 2020 | Oil and Grease | 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1122188 | |
| Mar 23, 2020 | pH | 8.1 | SU | Effluent | Qualifying Storm Event | A4500HB | 1122188 |
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 | 6 | 6 Violation · 0 Potential (preliminary) · 0 Dismissed | Feb 26, 2003 – Jul 16, 2026 | Oct 21, 2026 | All violations |
| Enforcement actions | 7 | 7 issued · 0 draft · 0 withdrawn, rescinded or superseded | Apr 21, 2003 – Jul 22, 2026 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Feb 26, 2003 – Mar 06, 2012 | 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 (27 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 30, 2026 | Annual reports | 1333885 | Annual report 2025 | — | |
| Jul 22, 2026 | Enforcement actions | 470872 | NOV (Notice of Violation) | Historical | |
| Jul 16, 2026 | Violations | 904949 | Late Report | Violation | Report |
| Jul 15, 2025 | Annual reports | 1292646 | Annual report 2024 | — | |
| Jul 18, 2024 | Annual reports | 1241632 | Annual report 2023 | — | |
| Jul 14, 2023 | Annual reports | 1187549 | Annual report 2022 | — | |
| Jul 27, 2022 | Annual reports | 1110786 | Annual report 2021 | — | |
| Jul 15, 2021 | Annual reports | 1066703 | Annual report 2020 | — | |
| Jul 16, 2020 | Annual reports | 983836 | Annual report 2019 | — | |
| Jul 17, 2019 | Annual reports | 951327 | Annual report 2018 | — | |
| Jul 18, 2018 | Annual reports | 936733 | Annual report 2017 | — | |
| Mar 01, 2018 | Enforcement actions | 429314 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 31, 2018 | Enforcement actions | 428541 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 31, 2018 | Violations | 865624 | Late Report | Violation | Report |
| Jul 12, 2017 | Annual reports | 875859 | Annual report 2016 | — | |
| Aug 22, 2016 | Annual reports | 840826 | Annual report 2015 | — | |
| Aug 01, 2016 | Enforcement actions | 423531 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 16, 2016 | Violations | 860695 | Late Report | Violation | Report |
| Jan 15, 2015 | Enforcement actions | 418191 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 15, 2015 | Violations | 856243 | Deficient Report | Violation | Report |
| Mar 12, 2012 | Enforcement actions | 408184 | SEL (Staff Enforcement Letter) | Historical | |
| Mar 06, 2012 | Inspections | 2014558 | B Type compliance | — | Additional Info Required |
| Mar 06, 2012 | Violations | 847468 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| May 26, 2005 | Inspections | 2014424 | B Type compliance | — | No Further Action |
| Apr 21, 2003 | Enforcement actions | 244640 | SEL (Staff Enforcement Letter) | Historical | UNKNOWN |
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.