Durham School Services
Active WDID 5S29NEC015589 Grass Valley, Nevada County Region 5S · Central Valley (Sacramento)
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- No Exposure Certification (NEC) · Permits and applications
- Location Evidence: facility-reported
- Grass Valley, Nevada County
- Region 5S · Central Valley (Sacramento) · 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
- 155 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Dec 19, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 4 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
- 39.216873, -121.043073
- 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
- 10701 E Bennett Rd, Grass Valley 95945
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Rattlesnake Creek-Wolf Creek HUC12 180201260202
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
- Summit Durham Holding LLC
- Primary industry (SIC)
- 4151-School Buses
- Application ID
- 198632
- NOI processed
- Apr 06, 1992
- Last certified
- Sep 10, 2026
- Facility size
- 4.1 Acres
- Impervious area
- 50 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 198632 | Industrial | Active | Apr 06, 1992 | — | Sep 10, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- South Fork Wolf Creek
- 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Wolf Creek (Nevada County) CAR5163201020011212113551 | 678 m | listed | 1 |
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.
155 distinct measurements across 3 parameters, most recent sample Dec 19, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 11 | 3 | 0 | Nov 13, 2025 | Dec 19, 2025 |
| 2024 | 6 | 3 | 0 | Dec 12, 2024 | Dec 12, 2024 |
| 2023 | 24 | 3 | 0 | Dec 19, 2023 | Feb 05, 2024 |
| 2022 | 30 | 3 | 0 | Dec 01, 2022 | Apr 10, 2023 |
| 2021 | 18 | 3 | 0 | Dec 23, 2021 | Apr 21, 2022 |
| 2020 | 6 | 3 | 0 | Jan 25, 2021 | Jan 25, 2021 |
| 2019 | 12 | 3 | 0 | Dec 18, 2019 | Jan 21, 2020 |
| 2018 | 12 | 3 | 0 | Feb 13, 2019 | Mar 25, 2019 |
| 2017 | 6 | 3 | 0 | Apr 06, 2018 | Apr 06, 2018 |
| 2016 | 6 | 3 | 0 | Oct 14, 2016 | Oct 14, 2016 |
| 2015 | 24 | 3 | 0 | Nov 02, 2015 | Apr 22, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 52 | 27 | Nov 02, 2015 | Dec 19, 2025 | Results |
| pH | SU | 52 | 0 | Nov 02, 2015 | Dec 19, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 51 | 2 | Nov 02, 2015 | Dec 19, 2025 | Results |
All results (155 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 19, 2025 | Oil and Grease | ND 3.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362670 | |
| Dec 19, 2025 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362670 | |
| Dec 19, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1362670 | |
| Dec 19, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1362670 | |
| Dec 19, 2025 | Total Suspended Solids (TSS) | 8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362670 | |
| Nov 13, 2025 | Oil and Grease | ND 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359096 | |
| Nov 13, 2025 | Oil and Grease | 2.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359096 | |
| Nov 13, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1359096 | |
| Nov 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1359096 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 27 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359096 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 46 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359096 | |
| Dec 12, 2024 | Oil and Grease | 5.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1318379 | |
| Dec 12, 2024 | Oil and Grease | 5.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1318379 | |
| Dec 12, 2024 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1318379 | |
| Dec 12, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1318379 | |
| Dec 12, 2024 | Total Suspended Solids (TSS) | 54 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1318379 | |
| Dec 12, 2024 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1318379 | |
| Feb 05, 2024 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1279177 | |
| Feb 05, 2024 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1279177 | |
| Feb 05, 2024 | pH | 9 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1279177 | |
| Feb 05, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1279177 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 53 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1279177 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1279177 | |
| Jan 22, 2024 | Oil and Grease | 4.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1276534 | |
| Jan 22, 2024 | Oil and Grease | 4.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1276534 | |
| Jan 22, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1276534 | |
| Jan 22, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1276534 | |
| Jan 22, 2024 | Total Suspended Solids (TSS) | 14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1276534 | |
| Jan 22, 2024 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1276534 | |
| Jan 03, 2024 | Oil and Grease | 5.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1273191 | |
| Jan 03, 2024 | Oil and Grease | 3.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1273191 | |
| Jan 03, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1273191 | |
| Jan 03, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1273191 | |
| Jan 03, 2024 | Total Suspended Solids (TSS) | ND 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1273191 | |
| Jan 03, 2024 | Total Suspended Solids (TSS) | ND 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1273191 | |
| Dec 19, 2023 | Oil and Grease | ND 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1271080 | |
| Dec 19, 2023 | Oil and Grease | ND 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1271080 | |
| Dec 19, 2023 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1271080 | |
| Dec 19, 2023 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1271080 | |
| Dec 19, 2023 | Total Suspended Solids (TSS) | 5.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1271080 | |
| Dec 19, 2023 | Total Suspended Solids (TSS) | 65 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1271080 | |
| Apr 10, 2023 | Oil and Grease | ND 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1237984 | |
| Apr 10, 2023 | Oil and Grease | 5.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1237984 | |
| Apr 10, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1237984 | |
| Apr 10, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1237984 | |
| Apr 10, 2023 | Total Suspended Solids (TSS) | 21 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1237984 | |
| Apr 10, 2023 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1237984 | |
| Mar 28, 2023 | Oil and Grease | ND 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1234755 | |
| Mar 28, 2023 | Oil and Grease | ND 3.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1234755 | |
| Mar 28, 2023 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1234755 |
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 | Jul 02, 1999 – Nov 19, 2014 | Oct 21, 2026 | All violations |
| Enforcement actions | 7 | 7 issued · 0 draft · 0 withdrawn, rescinded or superseded | Oct 26, 1999 – Dec 09, 2014 | Oct 21, 2026 | All actions |
| Inspections | 4 | inspections, not findings | Jul 31, 2013 – Jun 13, 2024 | 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 (28 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 18, 2026 | Annual reports | 1336770 | Annual report 2025 | — | |
| Jun 13, 2025 | Annual reports | 1295648 | Annual report 2024 | — | |
| Jun 21, 2024 | Annual reports | 1244807 | Annual report 2023 | — | |
| Jun 13, 2024 | Inspections | 2064654 | B Type compliance | Performed | No Further Action |
| Jun 29, 2023 | Annual reports | 1190882 | Annual report 2022 | — | |
| Jun 03, 2022 | Annual reports | 1114389 | Annual report 2021 | — | |
| Jun 17, 2021 | Annual reports | 1070476 | Annual report 2020 | — | |
| Jun 23, 2020 | Annual reports | 987867 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 955493 | Annual report 2018 | — | |
| Aug 24, 2018 | Annual reports | 940914 | Annual report 2017 | — | |
| Jul 11, 2017 | Annual reports | 880267 | Annual report 2016 | — | |
| Aug 17, 2016 | Annual reports | 843709 | Annual report 2015 | — | |
| Dec 09, 2014 | Enforcement actions | 417058 | Verbal Communication | Active | |
| Nov 19, 2014 | Inspections | 2024118 | B Type compliance | — | Follow-up Inspection Needed |
| Nov 19, 2014 | Violations | 855282 | Deficient BMP Implementation | Violation | Inspection |
| Dec 09, 2013 | Inspections | 2020865 | B Type compliance | — | No Further Action |
| Sep 25, 2013 | Enforcement actions | 416991 | NOV (Notice of Violation) | Active | |
| Sep 25, 2013 | Violations | 855234 | Deficient BMP Implementation | Violation | Inspection |
| Jul 31, 2013 | Inspections | 2019551 | B Type compliance | — | Additional Info Required |
| Sep 30, 2010 | Enforcement actions | 402683 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Historical | |
| Sep 28, 2010 | Violations | 842496 | Late Report | Violation | Report |
| Aug 19, 2010 | Enforcement actions | 402432 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2010 | Violations | 842301 | Late Report | Violation | Report |
| Sep 03, 2009 | Enforcement actions | 400877 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Historical | |
| Jul 23, 2009 | Enforcement actions | 400468 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical |
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.