Maintenance Operations Yrd
Active WDID 8 36I018212 Chino, San Bernardino 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
- Chino, San Bernardino County
- Region 8 · Santa Ana · Location · Statewide map
- Receiving water
- Chino City Storm System (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
- None
- Monitoring results Evidence: facility-reported
- 205 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Nov 14, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 3 violation records · 4 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
- 34.01906, -117.69283
- 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
- 5130 Riverside Dr, Chino 91710
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Middle Chino Creek HUC12 180702030703
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
- Chino Valley USD
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 213711
- NOI processed
- Jun 24, 2003
- Last certified
- Nov 21, 2025
- Facility size
- 14 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 213711 | Industrial | Active | Jun 24, 2003 | — | Nov 21, 2025 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Chino City Storm System
- Discharges directly / indirectly
- N / Y (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.
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.
205 distinct measurements across 5 parameters, most recent sample Nov 14, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 18 | 3 | 0 | Oct 14, 2025 | Nov 14, 2025 |
| 2024 | 9 | 3 | 0 | Feb 13, 2025 | Feb 13, 2025 |
| 2023 | 6 | 3 | 0 | Dec 22, 2023 | Dec 22, 2023 |
| 2022 | 39 | 3 | 0 | Jan 10, 2023 | Mar 29, 2023 |
| 2021 | 9 | 3 | 0 | Dec 14, 2021 | Dec 14, 2021 |
| 2020 | 9 | 3 | 0 | Jan 29, 2021 | Jan 29, 2021 |
| 2019 | 36 | 3 | 0 | Dec 04, 2019 | Mar 12, 2020 |
| 2018 | 39 | 4 | 0 | Nov 29, 2018 | Mar 06, 2019 |
| 2017 | 8 | 4 | 0 | Mar 22, 2018 | Mar 22, 2018 |
| 2016 | 24 | 3 | 0 | Oct 17, 2016 | Feb 06, 2017 |
| 2015 | 8 | 4 | 0 | Sep 15, 2015 | Mar 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 66 | 50 | Sep 15, 2015 | Nov 14, 2025 | Results |
| pH | SU | 66 | 3 | Sep 15, 2015 | Nov 14, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 66 | 0 | Sep 15, 2015 | Nov 14, 2025 | Results |
| Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | mg/L | 5 | 0 | Mar 22, 2018 | Nov 29, 2018 | Results |
| Total Organic Carbon (TOC) | mg/L | 2 | 0 | Sep 15, 2015 | Mar 07, 2016 | Results |
All results (205 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Nov 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359144 | |
| Nov 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359144 | |
| Nov 14, 2025 | Oil and Grease | 8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359144 | |
| Nov 14, 2025 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | A4500HB | 1359144 | |
| Nov 14, 2025 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1359144 | |
| Nov 14, 2025 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1359144 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359144 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 39 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359144 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 118 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359144 | |
| Oct 14, 2025 | Oil and Grease | 1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1356347 | |
| Oct 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1356347 | |
| Oct 14, 2025 | Oil and Grease | 10 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1356347 | |
| Oct 14, 2025 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1356347 | |
| Oct 14, 2025 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | A4500HB | 1356347 | |
| Oct 14, 2025 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1356347 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 56 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1356347 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1356347 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 247 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1356347 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1324325 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1324325 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1324325 | |
| Feb 13, 2025 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1324325 | |
| Feb 13, 2025 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | A4500HB | 1324325 | |
| Feb 13, 2025 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | A4500HB | 1324325 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 120 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1324325 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1324325 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 30 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1324325 | |
| Dec 22, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1270911 | |
| Dec 22, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1270911 | |
| Dec 22, 2023 | pH | 7.11 | SU | Effluent | Qualifying Storm Event | A4500HB | 1270911 | |
| Dec 22, 2023 | pH | 7.26 | SU | Effluent | Qualifying Storm Event | A4500HB | 1270911 | |
| Dec 22, 2023 | Total Suspended Solids (TSS) | 94 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1270911 | |
| Dec 22, 2023 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1270911 | |
| Mar 29, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1232481 | |
| Mar 29, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1232481 | |
| Mar 29, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1232481 | |
| Mar 29, 2023 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1232481 | |
| Mar 29, 2023 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | pH_Field | 1232481 | |
| Mar 29, 2023 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1232481 | |
| Mar 29, 2023 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1232481 | |
| Mar 29, 2023 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1232481 | |
| Mar 29, 2023 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1232481 | |
| Mar 21, 2023 | Oil and Grease | 2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1231216 | |
| Mar 21, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1231216 | |
| Mar 21, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1231216 | |
| Mar 21, 2023 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1231216 | |
| Mar 21, 2023 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1231216 | |
| Mar 21, 2023 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1231216 | |
| Mar 21, 2023 | Total Suspended Solids (TSS) | 21 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1231216 | |
| Mar 21, 2023 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1231216 |
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 | Aug 07, 2007 – Aug 07, 2008 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 4 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 07, 2007 – Oct 06, 2008 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Sep 17, 2015 – Sep 17, 2015 | 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 (19 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 10, 2026 | Annual reports | 1336980 | Annual report 2025 | — | |
| Jun 16, 2025 | Annual reports | 1295870 | Annual report 2024 | — | |
| Jun 27, 2024 | Annual reports | 1245040 | Annual report 2023 | — | |
| Jul 10, 2023 | Annual reports | 1191125 | Annual report 2022 | — | |
| Jul 11, 2022 | Annual reports | 1114657 | Annual report 2021 | — | |
| Jun 22, 2021 | Annual reports | 1070754 | Annual report 2020 | — | |
| Jun 15, 2020 | Annual reports | 988170 | Annual report 2019 | — | |
| Jun 20, 2019 | Annual reports | 955802 | Annual report 2018 | — | |
| Jun 26, 2018 | Annual reports | 941226 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 880598 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 844988 | Annual report 2015 | — | |
| Sep 17, 2015 | Inspections | 2026896 | B Type compliance | — | No Further Action |
| Oct 06, 2008 | Enforcement actions | 353778 | Verbal Communication | Active | |
| Aug 07, 2008 | Enforcement actions | 350460 | NNC (Notice of Non-Compliance) | Historical | |
| Aug 07, 2008 | Violations | 779545 | Late Report | Violation | Report |
| Sep 10, 2007 | Enforcement actions | 336116 | NNC (Notice of Non-Compliance) | Active | |
| Sep 10, 2007 | Violations | 687550 | Late Report | Violation | Report |
| Aug 07, 2007 | Enforcement actions | 334462 | NNC (Notice of Non-Compliance) | Active | |
| Aug 07, 2007 | Violations | 606868 | Late Report | 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.