# Jenkins Limestone Quarry

- **MSHA mine ID:** 2302136
- **Status:** Intermittent
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Barry, MO
- **Operator:** Ly Low Trucking LLC dba Jenkins Limestone Quarry
- **Controller:** Anthony J Konya
- **Public source rows linked:** 517
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Anthony J Konya (0168743) → Ly Low Trucking LLC dba Jenkins Limestone Quarry (0193633) → Jenkins Limestone Quarry (2302136)**

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

## Controller and operator valid-time history

- **Corles R  Stehlik → Jenkins Quarry LLC:** 1996-04-01 through 2023-06-30; derived from co-tenure at mine 2302136; source `msha-controller-operator-history`.
- **Anthony J Konya → Missouri Materials LLC:** 2023-07-01 through current/open; derived from co-tenure at mine 2302136; 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 — 0 since 2021:** Accidents and injuries 4 historical accident/injury rows; 0 coded fatalities and 247 lost days across the published record.
2. **COMPLIANCE — 7 since 2021:** Violations and penalties 101 violation rows across the full record; 23 carry an S&S flag and $17,281 appears in current assessed amounts.
3. **HEALTH — 9 samples:** Occupational health samples 9 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 1K employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 21 linked rows:** Contests, conferences and decisions 7 contested-violation rows, 7 civil-penalty docket/decision rows, and 7 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 — 4 since 2021:** Inspections 47 inspection events and 606 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 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-B/section-56.3200
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **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 56.12028 — 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 56.14207 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 4 rows; 2001-07-03 through 2004-09-13; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-10-08 through 2026-10-08; source ID `msha-addresses`
- **Assessed Violations:** 100 rows; 2000-04-25 through 2023-03-21; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2005-08-26 through 2005-08-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2005-01-06 through 2005-01-06; source ID `msha-conferences`
- **Contested Violations:** 7 rows; 2004-09-30 through 2004-11-17; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 1996-04-01 through 2023-07-01; source ID `msha-controller-operator-history`
- **Inspections:** 47 rows; 2000-04-25 through 2024-08-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 188 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 43 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:** 9 rows; 2005-08-11 through 2023-03-21; source ID `msha-personal-health-samples`
- **Violations:** 101 rows; 2000-04-25 through 2023-03-21; 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/jenkins-limestone-quarry-2302136`
- JSON: `/api/v1/mines/jenkins-limestone-quarry-2302136`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2302136/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2302136/relationships`
- MCP resource: `mine://2302136/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`