# Miller Mine

- **MSHA mine ID:** 0202307
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Stone NEC
- **Location:** Coconino, AZ
- **Operator:** Miller Mining, Inc.
- **Controller:** Mark E Miller
- **Public source rows linked:** 571
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Mark E Miller (M11647) → Miller Mining, Inc. (L15271) → Miller Mine (0202307)**

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

## Controller and operator valid-time history

- **Donald H  Miller → Miller Mining:** 1986-05-01 through 1996-12-05; derived from co-tenure at mine 0202307; source `msha-controller-operator-history`.
- **Mark E Miller et al → Miller Mining, Inc.:** 1996-12-06 through current/open; derived from co-tenure at mine 0202307; 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 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 33 since 2021:** Violations and penalties 135 violation rows across the full record; 47 carry an S&S flag and $36,955 appears in current assessed amounts.
3. **HEALTH — 7 samples:** Occupational health samples 7 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 530 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 63 linked rows:** Contests, conferences and decisions 13 contested-violation rows, 49 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 14 since 2021:** Inspections 64 inspection events and 635 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 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 56.14100 — 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 46.7 — New task training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.7
- **30 CFR 56.4331 — Firefighting drills.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4331
- **30 CFR 56.18009 — Designation of person in charge.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18009
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 56.15005 — Safety belts and lines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005
- **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 56.14200 — Warnings prior to starting or moving equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14200
- **30 CFR 56.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001

## Source coverage

- **Addresses of Record:** 1 rows; 2023-11-08 through 2023-11-08; source ID `msha-addresses`
- **Assessed Violations:** 133 rows; 2000-09-07 through 2026-02-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 49 rows; 2000-10-13 through 2007-07-10; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2008-11-24 through 2008-11-24; source ID `msha-conferences`
- **Contested Violations:** 13 rows; 2003-04-16 through 2006-08-22; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Controller and Operator History:** 2 rows; 1986-05-01 through 1996-12-06; source ID `msha-controller-operator-history`
- **Inspections:** 64 rows; 2000-09-07 through 2026-05-27; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 138 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 26 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:** 7 rows; 2001-07-11 through 2025-09-24; source ID `msha-personal-health-samples`
- **Violations:** 135 rows; 2000-09-07 through 2026-02-09; 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/miller-mine-0202307`
- JSON: `/api/v1/mines/miller-mine-0202307`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0202307/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0202307/relationships`
- MCP resource: `mine://0202307/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`