# Springfield Quarry

- **MSHA mine ID:** 4000010
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Robertson, TN
- **Operator:** Vulcan Construction Materials, LLC
- **Controller:** Vulcan Materials Company
- **Public source rows linked:** 1,676
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Vulcan Materials Company (0071891) → Vulcan Construction Materials, LLC (L16168) → Springfield Quarry (4000010)**

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

## Controller and operator valid-time history

- **Benton  Brown Sr → Porter Brown Limestone Company Inc:** 1950-01-01 through 1988-11-30; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **Asarco Inc → American Limestone Company Inc:** 1988-12-01 through 1999-11-16; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **Grupo Mexico S A B de C V → American Limestone Company Inc:** 1999-11-17 through 2000-06-30; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **CSR Ltd → Rinker Materials South Central, Inc.:** 2000-07-01 through 2003-03-31; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **Rinker Group Ltd → Rinker Materials South Central, Inc.:** 2003-04-01 through 2007-07-09; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **Cemex S A → Rinker Materials South Central, Inc.:** 2007-07-10 through 2008-02-21; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **Ready Mix USA Inc → Aggregates USA LLC:** 2008-02-22 through 2009-04-03; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **Vulcan Materials Company → Vulcan Construction Materials, LLC:** 2009-04-04 through current/open; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.
- **Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, LLC:** 2009-04-04 through 2007-11-15; derived from co-tenure at mine 4000010; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 24
- 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 — 1 since 2021:** Accidents and injuries 17 historical accident/injury rows; 0 coded fatalities and 195 lost days across the published record.
2. **COMPLIANCE — 21 since 2021:** Violations and penalties 133 violation rows across the full record; 27 carry an S&S flag and $24,283 appears in current assessed amounts.
3. **HEALTH — 59 samples:** Occupational health samples 59 personal. 3 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 9K employee hours and 14 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 16 linked rows:** Contests, conferences and decisions 7 contested-violation rows, 7 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 12 since 2021:** Inspections 70 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 56.20003 — Housekeeping.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **30 CFR 56.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.11001 — 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 56.14201 — Conveyor start-up warnings.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14201
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002

## Source coverage

- **Accident, Injuries, and Illnesses:** 17 rows; 2000-04-24 through 2023-11-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1979-03-01 through 1979-03-01; source ID `msha-addresses`
- **Assessed Violations:** 133 rows; 2000-04-19 through 2026-06-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2010-04-05 through 2011-08-29; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 2 rows; 2003-03-11 through 2004-04-22; source ID `msha-conferences`
- **Contested Violations:** 7 rows; 2009-05-12 through 2009-05-19; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 712 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 126 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 1950-01-01 through 2009-04-04; source ID `msha-controller-operator-history`
- **Inspections:** 70 rows; 2000-04-19 through 2026-06-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 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:** 59 rows; 2003-01-14 through 2025-10-07; source ID `msha-personal-health-samples`
- **Violations:** 133 rows; 2000-04-19 through 2026-06-03; 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/springfield-quarry-4000010`
- JSON: `/api/v1/mines/springfield-quarry-4000010`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4000010/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4000010/relationships`
- MCP resource: `mine://4000010/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`