Hobart Mills Material Processing Facility
Active WDID 6A29I018557 Truckee, Nevada County Region 6A · Lahontan (South Lake Tahoe)
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Truckee, Nevada County
- Region 6A · Lahontan (South Lake Tahoe) · Location · Statewide map
- Receiving water
- Prosser Creek Reservoir (as reported by the facility)
- Evidence: identification corroborated Prosser Creek Reservoir Details
- Identified receiving water on the 2026 303(d) list
- Not on the 2026 303(d) list Evidence: State-published
- Describes the waterbody, not this facility · Waterbody profile
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- 2 waterbodies; 0 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 12 distinct results, 1 reporting year (2024 to 2024)
- Most recent sample Feb 02, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 4 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
- 39.400675, -120.183601
- 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
- Hobart Mills Rd at Fiberboard Rd, Truckee 96160
- Regional Water Board
- 6A — Lahontan (South Lake Tahoe)
HUC12 watershed Evidence: spatial
- Prosser Creek HUC12 160501020205
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
- Al Pombo Inc
- Primary industry (SIC)
- 1442-Construction Sand and Gravel
- Secondary SIC
- 1423-Crushed and Broken Granite
- Tertiary SIC
- 1446-Industrial Sand
- Application ID
- 203693
- NOI processed
- Jan 02, 2004
- Last certified
- Aug 31, 2015
- Facility size
- 42 Acres
- Impervious area
- 22 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 203693 | Industrial | Active | Jan 02, 2004 | — | Aug 31, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Prosser Creek Reservoir
- Discharges directly / indirectly
- Y / N (as answered in the permit application)
Evidence: identification corroborated Prosser Creek Reservoir CAL6352003420000218182036
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 991 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
Prosser Creek Reservoir is not on the 2026 303(d) list.
Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only.. A listing describes the waterbody, not this facility. Waterbody profile.
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 |
|---|---|---|---|
| Prosser Creek upstream of Prosser Reservoir CAR6352003020230503052001 | 530 m | not listed | 0 |
| Prosser Creek Reservoir CAL6352003420000218182036 | 991 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.
12 distinct measurements across 4 parameters, most recent sample Feb 02, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2024 | 12 | 4 | 0 | Feb 02, 2025 | Feb 02, 2025 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Nitrite Plus Nitrate (as N) | mg/L | 3 | 0 | Feb 02, 2025 | Feb 02, 2025 | Results |
| Oil and Grease | mg/L | 3 | 3 | Feb 02, 2025 | Feb 02, 2025 | Results |
| pH | SU | 3 | 0 | Feb 02, 2025 | Feb 02, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 3 | 0 | Feb 02, 2025 | Feb 02, 2025 | Results |
All results (12 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 02, 2025 | Nitrite Plus Nitrate (as N) | .11 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1321457 | |
| Feb 02, 2025 | Nitrite Plus Nitrate (as N) | .2 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1321457 | |
| Feb 02, 2025 | Nitrite Plus Nitrate (as N) | 1.3 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1321457 | |
| Feb 02, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1321457 | |
| Feb 02, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1321457 | |
| Feb 02, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1321457 | |
| Feb 02, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1321457 | |
| Feb 02, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1321457 | |
| Feb 02, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1321457 | |
| Feb 02, 2025 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1321457 | |
| Feb 02, 2025 | Total Suspended Solids (TSS) | 22 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1321457 | |
| Feb 02, 2025 | Total Suspended Solids (TSS) | 39 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1321457 |
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 | 4 | 3 Violation · 1 Potential (preliminary) · 0 Dismissed | Jul 01, 2004 – Jun 06, 2024 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 4 issued · 0 draft · 0 withdrawn, rescinded or superseded | Nov 23, 2004 – Aug 01, 2024 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | May 19, 2004 – Sep 06, 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 (22 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 13, 2026 | Annual reports | 1333857 | Annual report 2025 | — | |
| Jul 03, 2025 | Annual reports | 1292617 | Annual report 2024 | — | |
| Sep 06, 2024 | Inspections | 2066156 | Enforcement Follow-up | Finalized | No Further Action |
| Aug 01, 2024 | Enforcement actions | 454124 | NOV (Notice of Violation) | Active | |
| Jul 17, 2024 | Annual reports | 1241600 | Annual report 2023 | — | |
| Jun 06, 2024 | Inspections | 2064579 | B Type compliance | Finalized | Additional Info Required |
| Jun 06, 2024 | Violations | 889793 | Deficient BMP Implementation | Potential | Inspection |
| May 29, 2024 | Annual reports | 1187514 | Annual report 2022 | — | |
| Aug 31, 2022 | Annual reports | 1110747 | Annual report 2021 | — | |
| Jun 21, 2021 | Annual reports | 1066664 | Annual report 2020 | — | |
| Dec 28, 2020 | Annual reports | 983792 | Annual report 2019 | — | |
| Jul 23, 2019 | Annual reports | 951283 | Annual report 2018 | — | |
| Jul 13, 2018 | Annual reports | 936689 | Annual report 2017 | — | |
| Jul 06, 2017 | Annual reports | 875812 | Annual report 2016 | — | |
| Sep 05, 2016 | Annual reports | 840261 | Annual report 2015 | — | |
| Dec 11, 2015 | Enforcement actions | 422143 | NNC (Notice of Non-Compliance) | Active | |
| Oct 30, 2015 | Enforcement actions | 421331 | NNC (Notice of Non-Compliance) | Active | |
| Aug 15, 2015 | Violations | 859010 | Failure to Obtain Permit | Violation | Report |
| Jul 02, 2011 | Violations | 845051 | Late Report | Violation | Report |
| Nov 23, 2004 | Enforcement actions | 254675 | SEL (Staff Enforcement Letter) | Active | UNKNOWN |
| Jul 01, 2004 | Violations | 262063 | Deficient Report | Violation | Inspection |
| May 19, 2004 | Inspections | 334943 | B Type compliance | — |
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.