Jamestown Mine
Active WDID 5S55I013379 Jamestown, Tuolumne County Region 5S · Central Valley (Sacramento)
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Jamestown, Tuolumne County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- Receiving water
- Woods Creek (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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 118 distinct results, 9 reporting years (2015 to 2023)
- Most recent sample Feb 15, 2024 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 0 inspections · 4 violation records · 5 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
- 37.94062, -120.43889
- 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
- 17855 High School Rd, Jamestown 94801
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Peppermint Creek-Woods Creek HUC12 180400091103
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
- Jamestown Trusts
- Primary industry (SIC)
- 1041-Gold Ores
- Application ID
- 202794
- NOI processed
- Sep 08, 1997
- Last certified
- May 18, 2015
- Facility size
- 486 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 202794 | Industrial | Active | Sep 08, 1997 | — | May 18, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Woods Creek
- 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
1 official waterbody shares 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Woods Creek (Tuolumne County) CAR5363104120080808175556 | 538 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.
118 distinct measurements across 9 parameters, most recent sample Feb 15, 2024.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 14 | 7 | 0 | Feb 01, 2024 | Feb 15, 2024 |
| 2022 | 14 | 7 | 0 | Dec 27, 2022 | Feb 24, 2023 |
| 2021 | 14 | 7 | 0 | Oct 25, 2021 | Dec 09, 2021 |
| 2020 | 7 | 7 | 0 | Jan 27, 2021 | Jan 27, 2021 |
| 2019 | 14 | 7 | 0 | Jan 16, 2020 | Mar 16, 2020 |
| 2018 | 7 | 7 | 0 | Jan 17, 2019 | Jan 17, 2019 |
| 2017 | 7 | 7 | 0 | Mar 22, 2018 | Mar 22, 2018 |
| 2016 | 25 | 9 | 0 | Dec 16, 2016 | Apr 07, 2017 |
| 2015 | 16 | 8 | 0 | Jan 30, 2016 | Mar 08, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Arsenic, Total | mg/L | 16 | 3 | Jan 30, 2016 | Feb 15, 2024 | Results |
| Manganese, Total | mg/L | 16 | 0 | Jan 30, 2016 | Feb 15, 2024 | Results |
| Oil and Grease | mg/L | 16 | 14 | Jan 30, 2016 | Feb 15, 2024 | Results |
| pH | SU | 16 | 0 | Jan 30, 2016 | Feb 15, 2024 | Results |
| Sulfate, Total (as SO4) | mg/L | 16 | 0 | Jan 30, 2016 | Feb 15, 2024 | Results |
| Total Dissolved Solids (TDS) | mg/L | 16 | 0 | Jan 30, 2016 | Feb 15, 2024 | Results |
| Total Suspended Solids (TSS) | mg/L | 16 | 1 | Jan 30, 2016 | Feb 15, 2024 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 5 | 0 | Jan 30, 2016 | Apr 07, 2017 | Results |
| Sulfate, Total (as S) | mg/L | 1 | 0 | Apr 07, 2017 | Apr 07, 2017 | Results |
All results (118 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 15, 2024 | Arsenic, Total | .0046 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279130 | |
| Feb 15, 2024 | Manganese, Total | .0037 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1279130 | |
| Feb 15, 2024 | Oil and Grease | 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1279130 | |
| Feb 15, 2024 | pH | 8.06 | SU | Effluent | Qualifying Storm Event | pH_Field | 1279130 | |
| Feb 15, 2024 | Sulfate, Total (as SO4) | 460 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1279130 | |
| Feb 15, 2024 | Total Dissolved Solids (TDS) | 790 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1279130 | |
| Feb 15, 2024 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1279130 | |
| Feb 01, 2024 | Arsenic, Total | .0056 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1276977 | |
| Feb 01, 2024 | Manganese, Total | .01 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1276977 | |
| Feb 01, 2024 | Oil and Grease | .82 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1276977 | |
| Feb 01, 2024 | pH | 7.64 | SU | Effluent | Qualifying Storm Event | pH_Field | 1276977 | |
| Feb 01, 2024 | Sulfate, Total (as SO4) | 61 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1276977 | |
| Feb 01, 2024 | Total Dissolved Solids (TDS) | 190 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1276977 | |
| Feb 01, 2024 | Total Suspended Solids (TSS) | 3.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1276977 | |
| Feb 24, 2023 | Arsenic, Total | .0033 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229973 | |
| Feb 24, 2023 | Manganese, Total | .009 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1229973 | |
| Feb 24, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1229973 | |
| Feb 24, 2023 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229973 | |
| Feb 24, 2023 | Sulfate, Total (as SO4) | 800 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1229973 | |
| Feb 24, 2023 | Total Dissolved Solids (TDS) | 1200 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1229973 | |
| Feb 24, 2023 | Total Suspended Solids (TSS) | 3.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1229973 | |
| Dec 27, 2022 | Arsenic, Total | .0032 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1225322 | |
| Dec 27, 2022 | Manganese, Total | .012 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1225322 | |
| Dec 27, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1225322 | |
| Dec 27, 2022 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1225322 | |
| Dec 27, 2022 | Sulfate, Total (as SO4) | 79 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1225322 | |
| Dec 27, 2022 | Total Dissolved Solids (TDS) | 180 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1225322 | |
| Dec 27, 2022 | Total Suspended Solids (TSS) | 8.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1225322 | |
| Dec 09, 2021 | Arsenic, Total | .0041 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1172550 | |
| Dec 09, 2021 | Manganese, Total | .048 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1172550 | |
| Dec 09, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1172550 | |
| Dec 09, 2021 | pH | 8.39 | SU | Effluent | Qualifying Storm Event | pH_Field | 1172550 | |
| Dec 09, 2021 | Sulfate, Total (as SO4) | 160 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1172550 | |
| Dec 09, 2021 | Total Dissolved Solids (TDS) | 340 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1172550 | |
| Dec 09, 2021 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1172550 | |
| Oct 25, 2021 | Arsenic, Total | .0044 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1169960 | |
| Oct 25, 2021 | Manganese, Total | .066 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1169960 | |
| Oct 25, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1169960 | |
| Oct 25, 2021 | pH | 7.88 | SU | Effluent | Qualifying Storm Event | pH_Field | 1169960 | |
| Oct 25, 2021 | Sulfate, Total (as SO4) | 10 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1169960 | |
| Oct 25, 2021 | Total Dissolved Solids (TDS) | 88 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1169960 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 9.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1169960 | |
| Jan 27, 2021 | Arsenic, Total | .0042 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1141467 | |
| Jan 27, 2021 | Manganese, Total | .076 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1141467 | |
| Jan 27, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1141467 | |
| Jan 27, 2021 | pH | 7.32 | SU | Effluent | Qualifying Storm Event | pH_Field | 1141467 | |
| Jan 27, 2021 | Sulfate, Total (as SO4) | 24 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1141467 | |
| Jan 27, 2021 | Total Dissolved Solids (TDS) | 76 | mg/L | Effluent | Qualifying Storm Event | A2540C | 1141467 | |
| Jan 27, 2021 | Total Suspended Solids (TSS) | 45 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1141467 | |
| Mar 16, 2020 | Arsenic, Total | .0032 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1103154 |
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 | 4 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 1999 – Jul 15, 2021 | Oct 21, 2026 | All violations |
| Enforcement actions | 5 | 5 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 17, 2006 – Feb 14, 2022 | Oct 21, 2026 | All actions |
| Inspections | 0 | inspections, not findings | — | Oct 21, 2026 | |
| 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 (20 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 07, 2026 | Annual reports | 1337008 | Annual report 2025 | — | |
| Jul 10, 2025 | Annual reports | 1295898 | Annual report 2024 | — | |
| Jul 09, 2024 | Annual reports | 1245074 | Annual report 2023 | — | |
| Jul 18, 2023 | Annual reports | 1191161 | Annual report 2022 | — | |
| Jul 15, 2022 | Annual reports | 1070794 | Annual report 2020 | — | |
| Jul 15, 2022 | Annual reports | 1114696 | Annual report 2021 | — | |
| Feb 14, 2022 | Enforcement actions | 446164 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Active | |
| Aug 30, 2021 | Enforcement actions | 441799 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Active | |
| Jul 15, 2021 | Violations | 877898 | Late Report | Violation | Report |
| Jul 15, 2020 | Annual reports | 988213 | Annual report 2019 | — | |
| Jul 05, 2019 | Annual reports | 955846 | Annual report 2018 | — | |
| Jun 19, 2018 | Annual reports | 941270 | Annual report 2017 | — | |
| Feb 23, 2018 | Enforcement actions | 429182 | NOV (Notice of Violation) | Historical | |
| Jan 01, 2018 | Violations | 866283 | Late Report | Violation | Report |
| Jul 13, 2017 | Annual reports | 880644 | Annual report 2016 | — | |
| Jun 22, 2016 | Annual reports | 840257 | Annual report 2015 | — | |
| Oct 25, 2006 | Enforcement actions | 317346 | NNC (Notice of Non-Compliance) | Active | |
| Aug 17, 2006 | Enforcement actions | 315872 | NNC (Notice of Non-Compliance) | Active | |
| Jul 02, 2006 | Violations | 445640 | Late Report | Violation | Report |
| Jul 02, 1999 | Violations | 170680 | 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.