# Utica Silica

- **MSHA mine ID:** 1103268
- **Status:** Abandoned
- **Type / commodity:** Surface / Sand, Industrial NEC
- **Location:** La Salle, IL
- **Operator:** US Silica
- **Controller:** USS Holdings Inc
- **Public source rows linked:** 647
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**USS Holdings Inc (M11007) → US Silica (L14417) → Utica Silica (1103268)**

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

## Controller and operator valid-time history

- **Josh  Voss et al → Quality Sand Products, LLC.:** 2014-02-13 through 2015-05-07; derived from co-tenure at mine 1103268; source `msha-controller-operator-history`.
- **Dan  Voss et al → Quality Sand Products, LLC.:** 2014-02-13 through 2015-05-07; derived from co-tenure at mine 1103268; source `msha-controller-operator-history`.
- **USS Holdings Inc → Utica Silica, LLC:** 2015-05-08 through 2019-05-16; derived from co-tenure at mine 1103268; source `msha-controller-operator-history`.
- **USS Holdings Inc → US Silica:** 2019-05-17 through current/open; derived from co-tenure at mine 1103268; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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 7 historical accident/injury rows; 0 coded fatalities and 378 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 84 violation rows across the full record; 38 carry an S&S flag and $48,459 appears in current assessed amounts.
3. **HEALTH — 22 samples:** Occupational health samples 22 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 87 linked rows:** Contests, conferences and decisions 43 contested-violation rows, 43 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 — 1 since 2021:** Inspections 26 inspection events and 480 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 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **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 56.4102 — Spillage and leakage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4102
- **30 CFR 56.12013 — Splices and repairs of power cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12013
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **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 56.14131 — 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 56.14132 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 7 rows; 2014-10-20 through 2017-09-14; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-06-30 through 2025-06-30; source ID `msha-addresses`
- **Assessed Violations:** 82 rows; 2014-02-13 through 2021-08-04; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 43 rows; 2017-03-01 through 2019-05-13; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2017-09-15 through 2017-09-15; source ID `msha-conferences`
- **Contested Violations:** 43 rows; 2016-08-10 through 2018-11-20; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 265 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 56 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 2014-02-13 through 2019-05-17; source ID `msha-controller-operator-history`
- **Inspections:** 26 rows; 2014-02-13 through 2021-08-03; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 12 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:** 22 rows; 2014-09-22 through 2018-11-20; source ID `msha-personal-health-samples`
- **Violations:** 84 rows; 2014-02-13 through 2021-08-04; 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/utica-silica-1103268`
- JSON: `/api/v1/mines/utica-silica-1103268`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1103268/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1103268/relationships`
- MCP resource: `mine://1103268/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`