# Rock Quarry II

- **MSHA mine ID:** 4104355
- **Status:** Abandoned
- **Type / commodity:** Surface / Dimension Sandstone
- **Location:** Lampasas, TX
- **Operator:** Kirby Stone Company LLC
- **Controller:** James E  Cox
- **Public source rows linked:** 761
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**James E  Cox (0052009) → Kirby Stone Company LLC (0062303) → Rock Quarry II (4104355)**

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

## Controller and operator valid-time history

- **Weldon  Kirby → Kirby Stone Co. II:** 2002-04-09 through 2004-12-31; derived from co-tenure at mine 4104355; source `msha-controller-operator-history`.
- **James E  Cox → Kirby Stone Company LLC:** 2005-01-01 through current/open; derived from co-tenure at mine 4104355; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 — 0 since 2021:** Accidents and injuries 16 historical accident/injury rows; 0 coded fatalities and 172 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 193 violation rows across the full record; 75 carry an S&S flag and $170,421 appears in current assessed amounts.
3. **HEALTH — 18 samples:** Occupational health samples 18 personal. 5 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 4K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 123 linked rows:** Contests, conferences and decisions 56 contested-violation rows, 56 civil-penalty docket/decision rows, and 11 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 — 0 since 2021:** Inspections 66 inspection events and 775 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 56.14103 — Operators stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.11003 — Construction and maintenance of ladders.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11003
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **30 CFR 56.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15004
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.16006 — Protection of gas cylinder valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16006
- **30 CFR 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101

## Source coverage

- **Accident, Injuries, and Illnesses:** 16 rows; 2005-04-05 through 2018-06-06; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-07-14 through 2020-07-14; source ID `msha-addresses`
- **Assessed Violations:** 191 rows; 2002-04-09 through 2020-01-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 56 rows; 2005-07-28 through 2016-03-25; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 11 rows; 2014-07-03 through 2016-04-01; source ID `msha-conferences`
- **Contested Violations:** 56 rows; 2004-03-02 through 2015-07-22; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 2002-04-09 through 2005-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 66 rows; 2002-04-09 through 2020-01-22; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 119 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 31 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:** 18 rows; 2009-05-06 through 2017-01-10; source ID `msha-personal-health-samples`
- **Violations:** 193 rows; 2002-04-09 through 2020-01-15; 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/rock-quarry-ii-4104355`
- JSON: `/api/v1/mines/rock-quarry-ii-4104355`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4104355/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4104355/relationships`
- MCP resource: `mine://4104355/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`