# Colleton Sand Plant

- **MSHA mine ID:** 3800544
- **Status:** Abandoned
- **Type / commodity:** Surface / Sand, Common
- **Location:** Colleton, SC
- **Operator:** Colleton Sand Plant
- **Controller:** Larry  Herndon
- **Public source rows linked:** 228
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Larry  Herndon (0042517) → Colleton Sand Plant (0084564) → Colleton Sand Plant (3800544)**

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

## Controller and operator valid-time history

- **Philipp Holzmann A G → Rea Construction Company:** 1979-01-01 through 1979-02-06; derived from co-tenure at mine 3800544; source `msha-controller-operator-history`.
- **Walker Kenneth R → Walker Enterprises Of Walterboro Inc:** 1979-02-07 through 2002-08-28; derived from co-tenure at mine 3800544; source `msha-controller-operator-history`.
- **Roger W  Walker → Lowcountry Sand & Gravel, Inc.:** 2002-08-29 through 2003-05-31; derived from co-tenure at mine 3800544; source `msha-controller-operator-history`.
- **Larry  Herndon et al → Lowcountry Concrete of Ridgeland Inc:** 2003-06-01 through 2007-10-08; derived from co-tenure at mine 3800544; source `msha-controller-operator-history`.
- **Larry  Herndon et al → Colleton Sand Plant:** 2007-10-09 through current/open; derived from co-tenure at mine 3800544; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 15
- 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 1 historical accident/injury rows; 0 coded fatalities and 36 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 55 violation rows across the full record; 16 carry an S&S flag and $6,652 appears in current assessed amounts.
3. **HEALTH — 4 samples:** Occupational health samples 4 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 50 employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 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 30 inspection events and 311 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 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **30 CFR 56.18010 — First aid.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18010
- **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 56.11001 — 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 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 56.14130 — Roll-over protective structures (ROPS) and seat belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130
- **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
- **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 56.14100 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2010-05-17 through 2010-05-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-04-01 through 2012-04-01; source ID `msha-addresses`
- **Assessed Violations:** 55 rows; 2003-05-28 through 2011-01-20; source ID `msha-assessed-violations`
- **Controller and Operator History:** 5 rows; 1979-01-01 through 2007-10-09; source ID `msha-controller-operator-history`
- **Inspections:** 30 rows; 2003-05-28 through 2011-12-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 58 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 18 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:** 4 rows; 2004-04-21 through 2009-04-28; source ID `msha-personal-health-samples`
- **Violations:** 55 rows; 2003-05-28 through 2011-01-20; 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/colleton-sand-plant-3800544`
- JSON: `/api/v1/mines/colleton-sand-plant-3800544`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3800544/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3800544/relationships`
- MCP resource: `mine://3800544/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`