# Chico 2 Quarry

- **MSHA mine ID:** 4104827
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Wise, TX
- **Operator:** P&K Stone LLC
- **Controller:** Peter R  Dawson
- **Public source rows linked:** 3,489
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Peter R  Dawson (0108687) → P&K Stone LLC (0139253) → Chico 2 Quarry (4104827)**

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

## Controller and operator valid-time history

- **John  Loftus et al → Blue Star Materials LLC:** 2010-05-25 through 2013-01-01; derived from co-tenure at mine 4104827; source `msha-controller-operator-history`.
- **Steve  Loftus et al → Blue Star Materials LLC:** 2010-05-25 through 2013-01-01; derived from co-tenure at mine 4104827; source `msha-controller-operator-history`.
- **John W.  Cathey et al → Blue Star Materials LLC:** 2013-01-02 through 2013-07-02; derived from co-tenure at mine 4104827; source `msha-controller-operator-history`.
- **Western Aggregates LLC et al → Blue Star Materials LLC:** 2013-01-02 through 2013-07-02; derived from co-tenure at mine 4104827; source `msha-controller-operator-history`.
- **Jack  Dowdy → Blue Star Materials II LLC:** 2013-07-03 through 2018-08-31; derived from co-tenure at mine 4104827; source `msha-controller-operator-history`.
- **Cemex S A → Cemex Construction Materials South, LLC:** 2018-09-01 through 2023-03-02; derived from co-tenure at mine 4104827; source `msha-controller-operator-history`.
- **Peter R  Dawson → P&K Stone LLC:** 2023-03-03 through current/open; derived from co-tenure at mine 4104827; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 16
- Interval anomalies: 0
- 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 — 2 since 2021:** Accidents and injuries 19 historical accident/injury rows; 1 coded fatalities and 1,011 lost days across the published record.
2. **COMPLIANCE — 56 since 2021:** Violations and penalties 241 violation rows across the full record; 77 carry an S&S flag and $106,279 appears in current assessed amounts.
3. **HEALTH — 13 samples:** Occupational health samples 13 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 18K employee hours and 41 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 22 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 11 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 14 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 — 15 since 2021:** Inspections 60 inspection events and 1K 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 50.30-1 — General instructions for completing MSHA Form 7000-2.** (8 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30-1
- **30 CFR 46.8 — Annual refresher training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.8
- **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 56.12023 — Guarding electrical connections and resistor grids.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12023
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300

## Source coverage

- **Accident, Injuries, and Illnesses:** 19 rows; 2010-11-20 through 2024-07-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-04-24 through 2013-04-24; source ID `msha-addresses`
- **Assessed Violations:** 235 rows; 2010-05-25 through 2026-08-13; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2013-09-16 through 2023-12-14; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 11 rows; 2012-09-26 through 2026-02-03; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,191 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 475 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 2010-05-25 through 2023-03-03; source ID `msha-controller-operator-history`
- **Inspections:** 60 rows; 2010-05-25 through 2026-08-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 177 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 47 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:** 13 rows; 2010-09-15 through 2021-05-06; source ID `msha-personal-health-samples`
- **Violations:** 241 rows; 2010-05-25 through 2026-09-15; 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/chico-2-quarry-4104827`
- JSON: `/api/v1/mines/chico-2-quarry-4104827`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4104827/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4104827/relationships`
- MCP resource: `mine://4104827/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`