# Patterson Mine and Mill

- **MSHA mine ID:** 3100274
- **Status:** Active
- **Type / commodity:** Facility / Mica
- **Location:** Cleveland, NC
- **Operator:** Imerys Mica Kings Mountain Inc.
- **Controller:** Imerys S A
- **Public source rows linked:** 447
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Imerys S A (M11763) → Imerys Mica Kings Mountain Inc. (0085604) → Patterson Mine and Mill (3100274)**

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

## Controller and operator valid-time history

- **Matthew A  Ferro Jr → Kmg Minerals Inc:** 1950-01-01 through 1994-07-27; derived from co-tenure at mine 3100274; source `msha-controller-operator-history`.
- **Franklin Industries Inc → Franklin Industrial Minerals:** 1994-07-28 through 1999-11-30; derived from co-tenure at mine 3100274; source `msha-controller-operator-history`.
- **Oglebay Norton Company → Oglebay Norton Specialty Mineral:** 1999-12-01 through 2005-04-13; derived from co-tenure at mine 3100274; source `msha-controller-operator-history`.
- **Zemex Corp → Kings Mountain Mining LLC:** 2005-04-14 through 2007-11-27; derived from co-tenure at mine 3100274; source `msha-controller-operator-history`.
- **Lhoist Group → Franklin Industrial Minerals:** 2006-12-01 through 1999-11-30; derived from co-tenure at mine 3100274; source `msha-controller-operator-history`.
- **General Chemical Industrial Products Inc → Imerys Mica Kings Mountain Inc.:** 2007-11-28 through 2008-10-09; derived from co-tenure at mine 3100274; source `msha-controller-operator-history`.
- **Imerys S A → Imerys Mica Kings Mountain Inc.:** 2008-10-10 through current/open; derived from co-tenure at mine 3100274; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 19
- Interval anomalies: 1
- 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 — 4 since 2021:** Accidents and injuries 6 historical accident/injury rows; 0 coded fatalities and 246 lost days across the published record.
2. **COMPLIANCE — 10 since 2021:** Violations and penalties 31 violation rows across the full record; 7 carry an S&S flag and $3,880 appears in current assessed amounts.
3. **HEALTH — 19 samples:** Occupational health samples 19 personal. 1 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 2K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 6 linked rows:** Contests, conferences and decisions 3 contested-violation rows, 3 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 16 since 2021:** Inspections 62 inspection events and 633 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 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.12028 — Testing grounding systems.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.12032 — Inspection and cover plates.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025
- **30 CFR 56.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12006

## Source coverage

- **Accident, Injuries, and Illnesses:** 6 rows; 2000-03-04 through 2025-12-23; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2014-10-20 through 2014-10-20; source ID `msha-addresses`
- **Assessed Violations:** 30 rows; 2000-10-05 through 2026-01-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 3 rows; 2010-06-21 through 2011-06-08; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 3 rows; 2007-11-28 through 2010-02-17; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 88 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 24 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1950-01-01 through 2007-11-28; source ID `msha-controller-operator-history`
- **Inspections:** 62 rows; 2000-04-03 through 2026-09-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 144 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 28 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:** 19 rows; 2002-01-23 through 2026-01-22; source ID `msha-personal-health-samples`
- **Violations:** 31 rows; 2000-10-05 through 2026-01-22; 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/patterson-mine-and-mill-3100274`
- JSON: `/api/v1/mines/patterson-mine-and-mill-3100274`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3100274/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3100274/relationships`
- MCP resource: `mine://3100274/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`