# SERVTEX PLANT

- **MSHA mine ID:** 4100059
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Comal, TX
- **Operator:** Heidelberg Materials Southwest LLC
- **Controller:** Heidelberg Materials AG
- **Public source rows linked:** 5,604
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Heidelberg Materials AG (M00004) → Heidelberg Materials Southwest LLC (0174514) → SERVTEX PLANT (4100059)**

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

## Controller and operator valid-time history

- **Hanson PLC → Hanson Aggregates West Inc:** 1950-01-01 through 2004-05-09; derived from co-tenure at mine 4100059; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Aggregates, LLC:** 2004-05-10 through 2007-08-22; derived from co-tenure at mine 4100059; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Hanson Aggregates, LLC:** 2007-08-23 through 2020-12-31; derived from co-tenure at mine 4100059; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Heidelberg Materials Southwest LLC:** 2021-01-01 through current/open; derived from co-tenure at mine 4100059; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → Hanson Aggregates, LLC:** 2021-10-01 through 2020-12-31; derived from co-tenure at mine 4100059; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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 — 13 since 2021:** Accidents and injuries 96 historical accident/injury rows; 0 coded fatalities and 1,247 lost days across the published record.
2. **COMPLIANCE — 169 since 2021:** Violations and penalties 448 violation rows across the full record; 87 carry an S&S flag and $275,223 appears in current assessed amounts.
3. **HEALTH — 11 samples:** Occupational health samples 11 personal. 0 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 80K employee hours and 119 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 154 linked rows:** Contests, conferences and decisions 64 contested-violation rows, 64 civil-penalty docket/decision rows, and 26 conference records linked by issuance number.
6. **CONTRACTORS — 20 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 — 27 since 2021:** Inspections 96 inspection events and 2K 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 50.20 — 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 56.13011 — Air receiver tanks.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13011
- **30 CFR 56.12004 — Electrical conductors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 50.20-1 — General instructions for completing MSHA Form 7000-1.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-1
- **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 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 46.7 — New task training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7

## Source coverage

- **Accident, Injuries, and Illnesses:** 96 rows; 2000-02-15 through 2026-01-31; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1972-03-27 through 1972-03-27; source ID `msha-addresses`
- **Assessed Violations:** 440 rows; 2000-05-10 through 2026-08-06; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 64 rows; 2007-03-02 through 2024-04-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 26 rows; 2001-06-19 through 2014-09-17; source ID `msha-conferences`
- **Contested Violations:** 64 rows; 2006-04-04 through 2023-06-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 3,217 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 736 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2021-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 96 rows; 2000-05-10 through 2026-08-06; 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:** 11 rows; 2009-01-13 through 2025-10-29; source ID `msha-personal-health-samples`
- **Violations:** 448 rows; 2000-05-10 through 2026-08-06; 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/servtex-plant-4100059`
- JSON: `/api/v1/mines/servtex-plant-4100059`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4100059/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4100059/relationships`
- MCP resource: `mine://4100059/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`