# Turner Brothers Stone Quarry

- **MSHA mine ID:** 4000095
- **Status:** Abandoned
- **Type / commodity:** Surface / Dimension Sandstone
- **Location:** Cumberland, TN
- **Operator:** Turner Brothers Stone of Crossville, Inc
- **Controller:** Howard L  Mercer
- **Public source rows linked:** 603
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Howard L  Mercer (M08696) → Turner Brothers Stone of Crossville, Inc (L11232) → Turner Brothers Stone Quarry (4000095)**

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

## Controller and operator valid-time history

- **Walter A  Turner → Turner Brothers Stone Company Inc:** 1950-01-01 through 1981-03-25; derived from co-tenure at mine 4000095; source `msha-controller-operator-history`.
- **Howard L  Mercer → Turner Brothers Stone Of Crossville, Inc:** 1981-03-26 through current/open; derived from co-tenure at mine 4000095; 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 19 historical accident/injury rows; 0 coded fatalities and 205 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 145 violation rows across the full record; 25 carry an S&S flag and $15,418 appears in current assessed amounts.
3. **HEALTH — 14 samples:** Occupational health samples 14 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 12K employee hours and 19 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 127 linked rows:** Contests, conferences and decisions 45 contested-violation rows, 45 civil-penalty docket/decision rows, and 37 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 — 0 since 2021:** Inspections 55 inspection events and 875 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 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12013 — Splices and repairs of power cables.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12013
- **30 CFR 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018

## Source coverage

- **Accident, Injuries, and Illnesses:** 19 rows; 2000-01-11 through 2014-06-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2015-02-11 through 2015-02-11; source ID `msha-addresses`
- **Assessed Violations:** 145 rows; 2000-02-29 through 2014-09-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 45 rows; 2013-08-22 through 2013-08-22; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 37 rows; 2012-09-26 through 2012-09-26; source ID `msha-conferences`
- **Contested Violations:** 45 rows; 2012-06-27 through 2012-06-28; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 23 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 6 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1981-03-26; source ID `msha-controller-operator-history`
- **Inspections:** 55 rows; 2000-02-29 through 2014-09-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 25 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 40 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:** 14 rows; 2001-04-05 through 2010-05-25; source ID `msha-personal-health-samples`
- **Violations:** 145 rows; 2000-02-29 through 2014-09-03; 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/turner-brothers-stone-quarry-4000095`
- JSON: `/api/v1/mines/turner-brothers-stone-quarry-4000095`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4000095/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4000095/relationships`
- MCP resource: `mine://4000095/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`