# Dunn Mill

- **MSHA mine ID:** 0401097
- **Status:** Intermittent
- **Type / commodity:** Facility / Potash
- **Location:** San Bernardino, CA
- **Operator:** Pacific Mining and Minerals, LLC
- **Controller:** Michael  Mattox; Terry  Suzuki
- **Public source rows linked:** 350
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Michael  Mattox; Terry  Suzuki (0174641) → Pacific Mining and Minerals, LLC (0187233) → Dunn Mill (0401097)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **American Borate Corp  et al → American Borate Company:** 1950-01-01 through 2007-05-31; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Roscorp Inc  et al → American Borate Company:** 1950-01-01 through 2007-05-31; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Trans Western Materials et al → Carlton Global Resources LLC:** 2007-06-01 through 2006-11-15; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Select Resources et al → Carlton Global Resources LLC:** 2007-06-01 through 2006-11-15; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Select Resources et al → Carlton Global Resources LLC:** 2007-06-01 through 2011-05-19; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Main Capital Partners LLC et al → Carlton Global Resources LLC:** 2007-06-01 through 2011-05-19; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Marshall  Pettit et al → Advanced Bio-Mineral Technologies, LLC:** 2011-05-20 through 2016-12-28; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Marshall  Pettit et al → Advanced Bio-Mineral Technologies, LLC. DEL.:** 2016-12-29 through 2019-07-31; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Terry  Suzuki → Materials Solutions, LLC:** 2019-08-01 through 2020-03-22; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Marshall  Pettit et al → Cal State Milling, LLC:** 2020-03-23 through 2021-12-28; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **International Zeolite Group Inc et al → Cal State Milling, LLC:** 2020-03-23 through 2021-12-28; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **MarBec Resources LLC et al → Cal State Milling, LLC:** 2021-12-29 through 2023-01-31; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **International Zeolite Group Inc et al → Cal State Milling, LLC:** 2021-12-29 through 2023-01-31; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Terry  Suzuki et al → Pacific Mining and Minerals, LLC:** 2023-02-01 through current/open; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.
- **Michael  Mattox et al → Pacific Mining and Minerals, LLC:** 2023-02-01 through current/open; derived from co-tenure at mine 0401097; source `msha-controller-operator-history`.

- History rows: 15
- Typed edges: 31
- Interval anomalies: 2
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 19 since 2021:** Violations and penalties 70 violation rows across the full record; 11 carry an S&S flag and $8,451 appears in current assessed amounts.
3. **HEALTH — 13 samples:** Occupational health samples 7 personal; 6 area. 0 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 220 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 0 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 9 since 2021:** Inspections 34 inspection events and 522 published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.14115 — Stationary grinding machines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14115
- **30 CFR 56.14107 — Moving machine parts.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 46.11 — Site-specific hazard awareness training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.11
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002

## Source coverage

- **Addresses of Record:** 1 rows; 2023-03-03 through 2023-03-03; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 6 rows; 2024-12-18 through 2024-12-18; source ID `msha-area-samples`
- **Assessed Violations:** 70 rows; 2000-06-06 through 2026-03-18; source ID `msha-assessed-violations`
- **Controller and Operator History:** 15 rows; 1950-01-01 through 2023-02-01; source ID `msha-controller-operator-history`
- **Inspections:** 34 rows; 2000-06-05 through 2026-03-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 113 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 33 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 7 rows; 2001-11-20 through 2024-12-18; source ID `msha-personal-health-samples`
- **Violations:** 70 rows; 2000-06-06 through 2026-03-18; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/dunn-mill-0401097`
- JSON: `/api/v1/mines/dunn-mill-0401097`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0401097/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0401097/relationships`
- MCP resource: `mine://0401097/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`