# Quincy Plant

- **MSHA mine ID:** 1102627
- **Status:** Active
- **Type / commodity:** Facility / Crushed, Broken Limestone NEC
- **Location:** Adams, IL
- **Operator:** Huber Carbonates, LLC
- **Controller:** J M Huber Corp
- **Public source rows linked:** 3,407
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**J M Huber Corp (M00950) → Huber Carbonates, LLC (0159734) → Quincy Plant (1102627)**

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

## Controller and operator valid-time history

- **J M Huber Corp → J M Huber Corp:** 1978-03-09 through 2014-12-28; derived from co-tenure at mine 1102627; source `msha-controller-operator-history`.
- **J M Huber Corp → Huber Carbonates, LLC:** 2014-12-29 through current/open; derived from co-tenure at mine 1102627; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 — 15 since 2021:** Accidents and injuries 63 historical accident/injury rows; 0 coded fatalities and 1,372 lost days across the published record.
2. **COMPLIANCE — 177 since 2021:** Violations and penalties 810 violation rows across the full record; 129 carry an S&S flag and $403,847 appears in current assessed amounts.
3. **HEALTH — 255 samples:** Occupational health samples 223 personal; 32 area. 42 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 126K employee hours and 160 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 323 linked rows:** Contests, conferences and decisions 130 contested-violation rows, 130 civil-penalty docket/decision rows, and 63 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 — 25 since 2021:** Inspections 125 inspection events and 7K 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 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.12032 — Inspection and cover plates.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.11003 — Construction and maintenance of ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11003
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 63 rows; 2000-05-01 through 2026-09-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2009-11-20 through 2009-11-20; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 32 rows; 2018-02-06 through 2022-03-01; source ID `msha-area-samples`
- **Assessed Violations:** 807 rows; 2001-05-01 through 2026-04-22; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 130 rows; 2012-06-26 through 2024-04-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 63 rows; 2014-12-03 through 2025-03-20; source ID `msha-conferences`
- **Contested Violations:** 130 rows; 2011-08-02 through 2023-06-13; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 670 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 146 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1978-03-09 through 2014-12-29; source ID `msha-controller-operator-history`
- **Inspections:** 125 rows; 2001-05-01 through 2026-09-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 160 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 44 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:** 223 rows; 2001-05-09 through 2026-09-17; source ID `msha-personal-health-samples`
- **Violations:** 810 rows; 2001-05-01 through 2026-04-22; 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/quincy-plant-1102627`
- JSON: `/api/v1/mines/quincy-plant-1102627`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1102627/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1102627/relationships`
- MCP resource: `mine://1102627/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`