# Sumter Sand

- **MSHA mine ID:** 3800575
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Sumter, SC
- **Operator:** American Materials Company LLC
- **Controller:** Quikrete Holdings Inc.
- **Public source rows linked:** 589
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Quikrete Holdings Inc. (M12812) → American Materials Company LLC (L17115) → Sumter Sand (3800575)**

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

## Controller and operator valid-time history

- **James (Tommy)  Glasscock → Sumter County Sand:** 1980-10-01 through 2017-05-14; derived from co-tenure at mine 3800575; source `msha-controller-operator-history`.
- **Summit Materials LLC → American Materials Company LLC:** 2017-05-15 through 2025-08-03; derived from co-tenure at mine 3800575; source `msha-controller-operator-history`.
- **Gary (Tim)  Bizzell  et al → American Materials Company LLC:** 2017-05-15 through 2016-02-04; derived from co-tenure at mine 3800575; source `msha-controller-operator-history`.
- **Quikrete Holdings Inc. → American Materials Company LLC:** 2025-08-04 through current/open; derived from co-tenure at mine 3800575; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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 1 historical accident/injury rows; 0 coded fatalities and 9 lost days across the published record.
2. **COMPLIANCE — 9 since 2021:** Violations and penalties 106 violation rows across the full record; 20 carry an S&S flag and $16,318 appears in current assessed amounts.
3. **HEALTH — 18 samples:** Occupational health samples 18 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 6K employee hours and 9 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 12 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 6 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 — 15 since 2021:** Inspections 79 inspection events and 961 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 62.120 — Action level.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.120
- **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
- **30 CFR 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **30 CFR 56.14112 — Construction and maintenance of guards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025
- **30 CFR 56.14211 — Blocking equipment in a raised position.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14211
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2025-12-17 through 2025-12-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1986-05-29 through 1986-05-29; source ID `msha-addresses`
- **Assessed Violations:** 105 rows; 2000-01-04 through 2025-07-31; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2005-01-18 through 2015-12-07; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 6 rows; 2003-09-30 through 2014-09-16; source ID `msha-contested-violations`
- **Controller and Operator History:** 4 rows; 1980-10-01 through 2017-05-15; source ID `msha-controller-operator-history`
- **Inspections:** 79 rows; 2000-01-04 through 2026-09-16; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 208 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 18 rows; 2002-07-31 through 2025-10-14; source ID `msha-personal-health-samples`
- **Violations:** 106 rows; 2000-01-04 through 2025-07-31; 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/sumter-sand-3800575`
- JSON: `/api/v1/mines/sumter-sand-3800575`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3800575/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3800575/relationships`
- MCP resource: `mine://3800575/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`