# Rockridge Quarry

- **MSHA mine ID:** 2301278
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Jackson, MO
- **Operator:** G&K Sarai Company
- **Controller:** Jarnail S Sarai; Manjit K Sarai
- **Public source rows linked:** 778
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Jarnail S Sarai; Manjit K Sarai (0162941) → G&K Sarai Company (L17756) → Rockridge Quarry (2301278)**

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

## Controller and operator valid-time history

- **Kevin R  Fahey → Beyer Crushed Rock Company:** 1950-01-01 through 1986-12-31; derived from co-tenure at mine 2301278; source `msha-controller-operator-history`.
- **Star Mining Corp → Five Star Mining-Limited Partnership:** 1987-01-01 through 1990-02-28; derived from co-tenure at mine 2301278; source `msha-controller-operator-history`.
- **Norcal Solid Waste Systems Inc → Mason Land Reclamation Company Inc:** 1990-03-01 through 2000-07-16; derived from co-tenure at mine 2301278; source `msha-controller-operator-history`.
- **Michael D  Pursell → G&K Sarai Company:** 2000-07-17 through 2021-06-11; derived from co-tenure at mine 2301278; source `msha-controller-operator-history`.
- **Jarnail S Sarai et al → G&K Sarai Company:** 2021-06-12 through current/open; derived from co-tenure at mine 2301278; source `msha-controller-operator-history`.
- **Manjit K Sarai et al → G&K Sarai Company:** 2021-06-12 through current/open; derived from co-tenure at mine 2301278; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 15
- 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 — 2 since 2021:** Accidents and injuries 9 historical accident/injury rows; 0 coded fatalities and 704 lost days across the published record.
2. **COMPLIANCE — 29 since 2021:** Violations and penalties 125 violation rows across the full record; 33 carry an S&S flag and $26,762 appears in current assessed amounts.
3. **HEALTH — 59 samples:** Occupational health samples 55 personal; 4 area. 1 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 17K employee hours and 25 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 6 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 6 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 — 20 since 2021:** Inspections 84 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 56.12028 — 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
- **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 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **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 56.14131 — Seat belts for haulage trucks.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14131
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **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 56.14132 — Horns and backup alarms.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **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 56.14100 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2002-01-15 through 2025-05-01; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2000-08-14 through 2000-08-14; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 4 rows; 2024-09-24 through 2024-09-24; source ID `msha-area-samples`
- **Assessed Violations:** 123 rows; 2002-02-26 through 2026-05-06; source ID `msha-assessed-violations`
- **Conferences:** 6 rows; 2020-02-11 through 2020-02-11; source ID `msha-conferences`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2000-07-17; source ID `msha-controller-operator-history`
- **Inspections:** 84 rows; 2001-05-01 through 2026-05-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 289 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 75 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:** 55 rows; 2001-05-02 through 2025-06-10; source ID `msha-personal-health-samples`
- **Violations:** 125 rows; 2002-02-26 through 2026-05-06; 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/rockridge-quarry-2301278`
- JSON: `/api/v1/mines/rockridge-quarry-2301278`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2301278/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2301278/relationships`
- MCP resource: `mine://2301278/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`