# Decker's Creek Limestone Company

- **MSHA mine ID:** 4600029
- **Status:** Active
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Monongalia, WV
- **Operator:** Decker's Creek Limestone Company
- **Controller:** Greer Industries Inc
- **Public source rows linked:** 5,024
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Greer Industries Inc (M01779) → Decker's Creek Limestone Company (L14434) → Decker's Creek Limestone Company (4600029)**

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

## Controller and operator valid-time history

- **Gulf + Western Industries Inc → Marquette Cement Manufacturing Company:** 1950-01-01 through 1982-04-14; derived from co-tenure at mine 4600029; source `msha-controller-operator-history`.
- **Lone Star Industries Inc → Lone Star Cement Inc:** 1982-04-15 through 1988-06-26; derived from co-tenure at mine 4600029; source `msha-controller-operator-history`.
- **Southdown Inc → Kosmos Cement Company:** 1988-06-27 through 1995-09-28; derived from co-tenure at mine 4600029; source `msha-controller-operator-history`.
- **Greer Industries Inc → Decker's Creek Limestone Company:** 1995-09-29 through current/open; derived from co-tenure at mine 4600029; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 12
- 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 — 4 since 2021:** Accidents and injuries 32 historical accident/injury rows; 0 coded fatalities and 336 lost days across the published record.
2. **COMPLIANCE — 48 since 2021:** Violations and penalties 261 violation rows across the full record; 33 carry an S&S flag and $33,705 appears in current assessed amounts.
3. **HEALTH — 417 samples:** Occupational health samples 404 personal; 13 area. 13 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 15K employee hours and 28 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 22 linked rows:** Contests, conferences and decisions 5 contested-violation rows, 6 civil-penalty docket/decision rows, and 11 conference records linked by issuance number.
6. **CONTRACTORS — 16 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 — 34 since 2021:** Inspections 168 inspection events and 6K 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 57.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.14107 — Moving machine parts.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107
- **30 CFR 57.4263 — Underground belt conveyors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4263
- **30 CFR 57.5060 — Limit on exposure to diesel particulate matter.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-D/section-57.5060
- **30 CFR 57.14132 — Horns and backup alarms for surface equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14132
- **30 CFR 57.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12018
- **30 CFR 57.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14101
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 32 rows; 2000-07-07 through 2025-04-11; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1996-08-07 through 1996-08-07; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 13 rows; 2021-06-16 through 2026-08-31; source ID `msha-area-samples`
- **Assessed Violations:** 256 rows; 2000-07-12 through 2026-08-20; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2001-12-19 through 2015-06-11; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 11 rows; 2000-12-05 through 2013-08-21; source ID `msha-conferences`
- **Contested Violations:** 5 rows; 2010-12-01 through 2014-04-16; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 3,146 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 599 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1995-09-29; source ID `msha-controller-operator-history`
- **Inspections:** 168 rows; 2000-02-23 through 2026-10-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 36 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 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:** 404 rows; 2000-11-02 through 2026-08-31; source ID `msha-personal-health-samples`
- **Violations:** 261 rows; 2000-07-12 through 2026-10-14; 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/decker-s-creek-limestone-company-4600029`
- JSON: `/api/v1/mines/decker-s-creek-limestone-company-4600029`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4600029/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4600029/relationships`
- MCP resource: `mine://4600029/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`