# Graymont Superior Lime Plant

- **MSHA mine ID:** 4700587
- **Status:** Active
- **Type / commodity:** Facility / Lime
- **Location:** Douglas, WI
- **Operator:** Graymont (WI) LLC
- **Controller:** Graymont Ltd
- **Public source rows linked:** 2,598
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Graymont Ltd (M00218) → Graymont (WI) LLC (L31938) → Graymont Superior Lime Plant (4700587)**

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

## Controller and operator valid-time history

- **Cutler Magner Company → Graymont (WI) LLC:** 1950-01-01 through 2007-11-29; derived from co-tenure at mine 4700587; source `msha-controller-operator-history`.
- **Graymont Ltd → Graymont (WI) LLC:** 2007-11-30 through current/open; derived from co-tenure at mine 4700587; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- 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 — 6 since 2021:** Accidents and injuries 96 historical accident/injury rows; 0 coded fatalities and 773 lost days across the published record.
2. **COMPLIANCE — 80 since 2021:** Violations and penalties 434 violation rows across the full record; 72 carry an S&S flag and $149,275 appears in current assessed amounts.
3. **HEALTH — 189 samples:** Occupational health samples 181 personal; 8 area. 5 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 30K employee hours and 58 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 37 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 7 civil-penalty docket/decision rows, and 24 conference records linked by issuance number.
6. **CONTRACTORS — 10 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 — 19 since 2021:** Inspections 86 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 56.12030 — Correction of dangerous conditions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **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 56.14107 — 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 56.20003 — 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 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **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 56.14101 — Brakes.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 96 rows; 2000-12-11 through 2026-04-29; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1977-03-01 through 1977-03-01; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 8 rows; 2006-01-19 through 2020-07-15; source ID `msha-area-samples`
- **Assessed Violations:** 432 rows; 2001-09-11 through 2026-06-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2000-08-15 through 2021-03-12; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 24 rows; 2006-04-27 through 2019-02-27; source ID `msha-conferences`
- **Contested Violations:** 6 rows; 2011-03-16 through 2020-08-17; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 858 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 196 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 86 rows; 2000-07-24 through 2026-08-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 212 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:** 181 rows; 2000-07-26 through 2025-10-21; source ID `msha-personal-health-samples`
- **Violations:** 434 rows; 2001-09-11 through 2026-06-29; 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/graymont-superior-lime-plant-4700587`
- JSON: `/api/v1/mines/graymont-superior-lime-plant-4700587`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4700587/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4700587/relationships`
- MCP resource: `mine://4700587/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`