# Lemke Stone Inc

- **MSHA mine ID:** 4702957
- **Status:** Active
- **Type / commodity:** Surface / Dimension Limestone
- **Location:** Waukesha, WI
- **Operator:** Lemke Stone Inc
- **Controller:** Jamie L Lemke; Jason T Lemke
- **Public source rows linked:** 1,095
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Jamie L Lemke; Jason T Lemke (0165861) → Lemke Stone Inc (L35557) → Lemke Stone Inc (4702957)**

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

## Controller and operator valid-time history

- **Kim D  Lemke et al → Lemke Stone Inc:** 1992-08-01 through 2016-12-31; derived from co-tenure at mine 4702957; source `msha-controller-operator-history`.
- **Mark D  Lemke et al → Lemke Stone Inc:** 1992-08-01 through 2016-12-31; derived from co-tenure at mine 4702957; source `msha-controller-operator-history`.
- **Mark D Lemke et al → Lemke Stone Inc:** 2017-01-01 through 2021-03-31; derived from co-tenure at mine 4702957; source `msha-controller-operator-history`.
- **Jason T Lemke et al → Lemke Stone Inc:** 2017-01-01 through 2021-03-31; derived from co-tenure at mine 4702957; source `msha-controller-operator-history`.
- **Jamie L Lemke et al → Lemke Stone Inc:** 2021-04-01 through current/open; derived from co-tenure at mine 4702957; source `msha-controller-operator-history`.
- **Jason T Lemke et al → Lemke Stone Inc:** 2021-04-01 through current/open; derived from co-tenure at mine 4702957; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 10
- 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 — 1 since 2021:** Accidents and injuries 12 historical accident/injury rows; 0 coded fatalities and 279 lost days across the published record.
2. **COMPLIANCE — 12 since 2021:** Violations and penalties 168 violation rows across the full record; 33 carry an S&S flag and $29,370 appears in current assessed amounts.
3. **HEALTH — 20 samples:** Occupational health samples 20 personal. 2 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 10K employee hours and 25 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 32 linked rows:** Contests, conferences and decisions 8 contested-violation rows, 8 civil-penalty docket/decision rows, and 16 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 13 since 2021:** Inspections 74 inspection events and 1K 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 56.4130 — Electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4130
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **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 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **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 56.12004 — 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 56.14100 — 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
- **30 CFR 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 12 rows; 2003-10-23 through 2026-08-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2014-04-15 through 2014-04-15; source ID `msha-addresses`
- **Assessed Violations:** 168 rows; 2000-03-07 through 2026-03-26; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2016-06-24 through 2016-06-30; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 16 rows; 2007-02-27 through 2015-12-16; source ID `msha-conferences`
- **Contested Violations:** 8 rows; 2015-11-03 through 2015-11-04; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 281 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 75 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1992-08-01 through 1992-08-01; source ID `msha-controller-operator-history`
- **Inspections:** 74 rows; 2000-03-02 through 2026-03-26; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 204 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 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:** 20 rows; 2003-01-14 through 2025-12-16; source ID `msha-personal-health-samples`
- **Violations:** 168 rows; 2000-03-07 through 2026-03-26; 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/lemke-stone-inc-4702957`
- JSON: `/api/v1/mines/lemke-stone-inc-4702957`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4702957/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4702957/relationships`
- MCP resource: `mine://4702957/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`