Grossmont Union H S Dist
Active WDID 9 37NEC011366 El Cajon, San Diego County Region 9 · San Diego
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- No Exposure Certification (NEC) · Permits and applications
- Location Evidence: facility-reported
- El Cajon, San Diego County
- Region 9 · San Diego · 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
- None
- Monitoring results Evidence: facility-reported
- 101 distinct results, 5 reporting years (2015 to 2019)
- Most recent sample Apr 07, 2020 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 3 violation records · 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
- 32.78019, -116.98525
- Precision
- 5 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
- 1100 Murray Dr, El Cajon 92020
- Regional Water Board
- 9 — San Diego
HUC12 watershed Evidence: spatial
- Forester Creek HUC12 180703040702
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
- No Exposure Certification (NEC)
- Status
- Active
- Operator
- Grossmont UHSD
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 218214
- NOI processed
- Mar 30, 1992
- Last certified
- Sep 02, 2026
- 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 |
|---|---|---|---|---|---|
| 218214 | Industrial | Active | Mar 30, 1992 | — | Sep 02, 2026 |
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
- N / Y (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.
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.
101 distinct measurements across 11 parameters, most recent sample Apr 07, 2020.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2019 | 24 | 11 | 0 | Dec 04, 2019 | Apr 07, 2020 |
| 2018 | 22 | 11 | 0 | Nov 29, 2018 | Feb 13, 2019 |
| 2017 | 11 | 11 | 0 | Feb 22, 2018 | Feb 22, 2018 |
| 2016 | 22 | 11 | 0 | Dec 16, 2016 | Jan 09, 2017 |
| 2015 | 22 | 11 | 0 | Dec 11, 2015 | Apr 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 10 | 8 | Dec 11, 2015 | Apr 07, 2020 | Results |
| Zinc, Total | mg/L | 10 | 0 | Dec 11, 2015 | Apr 07, 2020 | Results |
| Cadmium, Total | mg/L | 9 | 5 | Dec 11, 2015 | Mar 10, 2020 | Results |
| Copper, Total | mg/L | 9 | 3 | Dec 11, 2015 | Mar 10, 2020 | Results |
| Gasoline | mg/L | 9 | 9 | Dec 11, 2015 | Mar 10, 2020 | Results |
| Lead, Total | mg/L | 9 | 4 | Dec 11, 2015 | Mar 10, 2020 | Results |
| Methylene Blue Active Substances (MBAS) | mg/L | 9 | 8 | Dec 11, 2015 | Mar 10, 2020 | Results |
| Nickel, Total | mg/L | 9 | 6 | Dec 11, 2015 | Mar 10, 2020 | Results |
| Petroleum Hydrocarbons, Total | mg/L | 9 | 4 | Dec 11, 2015 | Mar 10, 2020 | Results |
| pH | SU | 9 | 0 | Dec 11, 2015 | Mar 10, 2020 | Results |
| Total Suspended Solids (TSS) | mg/L | 9 | 4 | Dec 11, 2015 | Mar 10, 2020 | Results |
All results (101 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 07, 2020 | Oil and Grease | DNQ 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1105929 | |
| Apr 07, 2020 | Zinc, Total | .058 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1105929 | |
| Mar 10, 2020 | Cadmium, Total | DNQ .0003 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1102714 | |
| Mar 10, 2020 | Copper, Total | DNQ .009 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1102714 | |
| Mar 10, 2020 | Gasoline | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1102714 | |
| Mar 10, 2020 | Lead, Total | DNQ .0003 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1102714 | |
| Mar 10, 2020 | Methylene Blue Active Substances (MBAS) | DNQ .2 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1102714 | |
| Mar 10, 2020 | Nickel, Total | DNQ .0007 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1102714 | |
| Mar 10, 2020 | Oil and Grease | 57 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1102714 | |
| Mar 10, 2020 | Petroleum Hydrocarbons, Total | 1.03 | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1102714 | |
| Mar 10, 2020 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1102714 | |
| Mar 10, 2020 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1102714 | |
| Mar 10, 2020 | Zinc, Total | .052 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1102714 | |
| Dec 04, 2019 | Cadmium, Total | DNQ .0002 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1094966 | |
| Dec 04, 2019 | Copper, Total | DNQ .007 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1094966 | |
| Dec 04, 2019 | Gasoline | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1094966 | |
| Dec 04, 2019 | Lead, Total | DNQ .001 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1094966 | |
| Dec 04, 2019 | Methylene Blue Active Substances (MBAS) | DNQ .1 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1094966 | |
| Dec 04, 2019 | Nickel, Total | DNQ .0009 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1094966 | |
| Dec 04, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1094966 | |
| Dec 04, 2019 | Petroleum Hydrocarbons, Total | 1.13 | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1094966 | |
| Dec 04, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1094966 | |
| Dec 04, 2019 | Total Suspended Solids (TSS) | 29 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1094966 | |
| Dec 04, 2019 | Zinc, Total | .05 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1094966 | |
| Feb 13, 2019 | Cadmium, Total | DNQ .0004 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1048346 | |
| Feb 13, 2019 | Copper, Total | DNQ .005 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1048346 | |
| Feb 13, 2019 | Gasoline | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1048346 | |
| Feb 13, 2019 | Lead, Total | DNQ .004 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1048346 | |
| Feb 13, 2019 | Methylene Blue Active Substances (MBAS) | DNQ .1 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1048346 | |
| Feb 13, 2019 | Nickel, Total | DNQ .0007 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1048346 | |
| Feb 13, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1048346 | |
| Feb 13, 2019 | Petroleum Hydrocarbons, Total | 2.14 | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1048346 | |
| Feb 13, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1048346 | |
| Feb 13, 2019 | Total Suspended Solids (TSS) | DNQ 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1048346 | |
| Feb 13, 2019 | Zinc, Total | .122 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1048346 | |
| Nov 29, 2018 | Cadmium, Total | DNQ .0003 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1030506 | |
| Nov 29, 2018 | Copper, Total | .019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1030506 | |
| Nov 29, 2018 | Gasoline | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1030506 | |
| Nov 29, 2018 | Lead, Total | .007 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1030506 | |
| Nov 29, 2018 | Methylene Blue Active Substances (MBAS) | DNQ .1 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1030506 | |
| Nov 29, 2018 | Nickel, Total | DNQ .002 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1030506 | |
| Nov 29, 2018 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1030506 | |
| Nov 29, 2018 | Petroleum Hydrocarbons, Total | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1030506 | |
| Nov 29, 2018 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1030506 | |
| Nov 29, 2018 | Total Suspended Solids (TSS) | 26 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1030506 | |
| Nov 29, 2018 | Zinc, Total | .31 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1030506 | |
| Feb 22, 2018 | Cadmium, Total | .00018 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 996525 | |
| Feb 22, 2018 | Copper, Total | .0054 | mg/L | Effluent | Qualifying Storm Event | A3111B | 996525 | |
| Feb 22, 2018 | Gasoline | ND | mg/L | Effluent | Qualifying Storm Event | M8015 | 996525 | |
| Feb 22, 2018 | Lead, Total | .0027 | mg/L | Effluent | Qualifying Storm Event | A3111B | 996525 |
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 | 3 | 3 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 1999 – Oct 02, 2025 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Oct 17, 2025 – Oct 17, 2025 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Feb 25, 2002 – Feb 25, 2002 | Oct 21, 2026 | All inspections |
| Annual reports | 6 | certified reports (contents not shown) | 2015 – 2020 | 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 |
|---|---|---|---|---|---|
| Oct 17, 2025 | Enforcement actions | 467466 | NOV (Notice of Violation) | Active | |
| Oct 02, 2025 | Violations | 901982 | Failure to meet NEC criteria | Violation | Report |
| Jul 16, 2021 | Annual reports | 1067035 | Annual report 2020 | — | |
| Jul 15, 2020 | Annual reports | 984185 | Annual report 2019 | — | |
| Jul 01, 2019 | Annual reports | 951682 | Annual report 2018 | — | |
| Jun 25, 2018 | Annual reports | 937092 | Annual report 2017 | — | |
| Jun 19, 2017 | Annual reports | 876241 | Annual report 2016 | — | |
| Jul 11, 2016 | Annual reports | 846108 | Annual report 2015 | — | |
| Feb 25, 2002 | Inspections | 312950 | B Type compliance | — | |
| Feb 25, 2002 | Violations | 204442 | Deficient BMP Implementation | Violation | Inspection |
| Jul 02, 1999 | Violations | 178628 | Deficient Report | Violation | Inspection |
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.