# Da-Tone Rock Products, Inc.

- **MSHA mine ID:** 3503360
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Curry, OR
- **Operator:** Da-Tone Rock Products, Inc.
- **Controller:** Casey  McLennan
- **Public source rows linked:** 676
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Casey  McLennan (0114443) → Da-Tone Rock Products, Inc. (L16131) → Da-Tone Rock Products, Inc. (3503360)**

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

## Controller and operator valid-time history

- **Robert B  Allsup → Da-Tone Construction:** 1991-10-01 through 1998-07-14; derived from co-tenure at mine 3503360; source `msha-controller-operator-history`.
- **Mike  Beckley et al → Da-Tone Rock Products, Inc.:** 1998-07-15 through 2012-01-22; derived from co-tenure at mine 3503360; source `msha-controller-operator-history`.
- **Sam  Williams  et al → Da-Tone Rock Products, Inc.:** 1998-07-15 through 2012-01-22; derived from co-tenure at mine 3503360; source `msha-controller-operator-history`.
- **Steve  Salisbury et al → Da-Tone Rock Products, Inc.:** 1998-07-15 through 2012-01-22; derived from co-tenure at mine 3503360; source `msha-controller-operator-history`.
- **Casey  McLennan et al → Da-Tone Rock Products, Inc.:** 2012-01-23 through 2014-07-31; derived from co-tenure at mine 3503360; source `msha-controller-operator-history`.
- **Sam  Williams et al → Da-Tone Rock Products, Inc.:** 2012-01-23 through 2014-07-31; derived from co-tenure at mine 3503360; source `msha-controller-operator-history`.
- **Casey  McLennan → Da-Tone Rock Products, Inc.:** 2014-08-01 through current/open; derived from co-tenure at mine 3503360; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 13
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 21 since 2021:** Violations and penalties 143 violation rows across the full record; 36 carry an S&S flag and $44,558 appears in current assessed amounts.
3. **HEALTH — 6 samples:** Occupational health samples 6 personal. 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 403 employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 74 linked rows:** Contests, conferences and decisions 30 contested-violation rows, 33 civil-penalty docket/decision rows, and 11 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 16 since 2021:** Inspections 64 inspection events and 967 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 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 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 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 56.4201 — Inspection.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **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 56.14100 — 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 56.14107 — Moving machine parts.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107

## Source coverage

- **Addresses of Record:** 1 rows; 2025-01-01 through 2025-01-01; source ID `msha-addresses`
- **Assessed Violations:** 140 rows; 2001-04-05 through 2026-07-23; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 33 rows; 2017-07-19 through 2020-04-06; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 11 rows; 2018-12-17 through 2019-10-07; source ID `msha-conferences`
- **Contested Violations:** 30 rows; 2016-12-14 through 2019-08-21; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 143 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 43 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1991-10-01 through 1998-07-15; source ID `msha-controller-operator-history`
- **Inspections:** 64 rows; 2001-03-01 through 2026-09-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 7 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 47 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:** 6 rows; 2015-03-26 through 2025-06-04; source ID `msha-personal-health-samples`
- **Violations:** 143 rows; 2001-04-05 through 2026-09-10; 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/da-tone-rock-products-inc-3503360`
- JSON: `/api/v1/mines/da-tone-rock-products-inc-3503360`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3503360/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3503360/relationships`
- MCP resource: `mine://3503360/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`