# Silica Services Mining, LLC

- **MSHA mine ID:** 0203270
- **Status:** Active
- **Type / commodity:** Surface / Sand, Industrial NEC
- **Location:** Apache, AZ
- **Operator:** Silica Services Mining, LLC
- **Controller:** Silica Services Holdings, LLC
- **Public source rows linked:** 2,424
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Silica Services Holdings, LLC (0151881) → Silica Services Mining, LLC (0116526) → Silica Services Mining, LLC (0203270)**

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

## Controller and operator valid-time history

- **Mike  O'Neill et al → Preferred Sands Of Arizona LLC:** 2011-01-14 through 2015-07-13; derived from co-tenure at mine 0203270; source `msha-controller-operator-history`.
- **Preferred Intermediate Holding Company, LLC → Preferred Proppants, LLC:** 2015-07-14 through 2019-10-24; derived from co-tenure at mine 0203270; source `msha-controller-operator-history`.
- **Mike  O'Neill et al → Silica Services Mining, LLC:** 2019-10-25 through 2019-10-24; derived from co-tenure at mine 0203270; source `msha-controller-operator-history`.
- **Silica Services Holdings, LLC → Preferred Sands Of Arizona LLC:** 2019-10-25 through 2015-07-13; derived from co-tenure at mine 0203270; source `msha-controller-operator-history`.
- **Silica Services Holdings, LLC → Silica Services Mining, LLC:** 2019-10-25 through current/open; derived from co-tenure at mine 0203270; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 11
- Interval anomalies: 2
- 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 — 27 since 2021:** Accidents and injuries 51 historical accident/injury rows; 0 coded fatalities and 392 lost days across the published record.
2. **COMPLIANCE — 47 since 2021:** Violations and penalties 219 violation rows across the full record; 66 carry an S&S flag and $131,583 appears in current assessed amounts.
3. **HEALTH — 31 samples:** Occupational health samples 31 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 69K employee hours and 124 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 88 linked rows:** Contests, conferences and decisions 38 contested-violation rows, 38 civil-penalty docket/decision rows, and 12 conference records linked by issuance number.
6. **CONTRACTORS — 7 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 — 18 since 2021:** Inspections 63 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 56.12008 — Insulation and fittings for power wires and cables.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **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 56.20003 — Housekeeping.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **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 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **30 CFR 56.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104

## Source coverage

- **Accident, Injuries, and Illnesses:** 51 rows; 2011-08-13 through 2026-08-25; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-03-01 through 2022-03-01; source ID `msha-addresses`
- **Assessed Violations:** 219 rows; 2011-03-02 through 2026-04-19; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 38 rows; 2013-02-25 through 2023-07-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 12 rows; 2012-01-17 through 2017-06-01; source ID `msha-conferences`
- **Contested Violations:** 38 rows; 2011-12-20 through 2022-07-19; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,355 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 175 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 2011-01-14 through 2019-10-25; source ID `msha-controller-operator-history`
- **Inspections:** 63 rows; 2011-03-02 through 2026-04-19; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 174 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 42 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:** 31 rows; 2011-03-02 through 2025-11-04; source ID `msha-personal-health-samples`
- **Violations:** 219 rows; 2011-03-02 through 2026-04-19; 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/silica-services-mining-llc-0203270`
- JSON: `/api/v1/mines/silica-services-mining-llc-0203270`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0203270/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0203270/relationships`
- MCP resource: `mine://0203270/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`