# Hillside Aggregates

- **MSHA mine ID:** 4703708
- **Status:** Active
- **Type / commodity:** Surface / Sand, Industrial NEC
- **Location:** Racine, WI
- **Operator:** TV Materials Inc
- **Controller:** Robert C  Epping
- **Public source rows linked:** 298
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Robert C  Epping (0041439) → TV Materials Inc (0186533) → Hillside Aggregates (4703708)**

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

## Controller and operator valid-time history

- **Robert C  Epping → Trenton Ventures LLC:** 2014-04-02 through 2026-03-29; derived from co-tenure at mine 4703708; source `msha-controller-operator-history`.
- **Robert C  Epping → TV Materials Inc:** 2026-03-30 through current/open; derived from co-tenure at mine 4703708; 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 — 27 since 2021:** Violations and penalties 62 violation rows across the full record; 8 carry an S&S flag and $14,206 appears in current assessed amounts.
3. **HEALTH — 8 samples:** Occupational health samples 8 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 2K employee hours and 6 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 9 linked rows:** Contests, conferences and decisions 4 contested-violation rows, 4 civil-penalty docket/decision rows, and 1 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 — 14 since 2021:** Inspections 32 inspection events and 385 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 56.12005 — Protection of power conductors from mobile equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12005
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **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 56.14107 — 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 56.14132 — 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
- **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
- **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 56.14112 — 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

## Source coverage

- **Addresses of Record:** 1 rows; 2016-07-15 through 2016-07-15; source ID `msha-addresses`
- **Assessed Violations:** 62 rows; 2014-07-09 through 2026-03-24; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 4 rows; 2018-09-17 through 2026-02-23; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2018-06-13 through 2018-06-13; source ID `msha-conferences`
- **Contested Violations:** 4 rows; 2017-12-19 through 2025-05-21; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 2014-04-02 through 2026-03-30; source ID `msha-controller-operator-history`
- **Inspections:** 32 rows; 2014-07-09 through 2026-09-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 98 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 23 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:** 8 rows; 2018-09-25 through 2026-09-10; source ID `msha-personal-health-samples`
- **Violations:** 62 rows; 2014-07-09 through 2026-03-24; 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/hillside-aggregates-4703708`
- JSON: `/api/v1/mines/hillside-aggregates-4703708`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4703708/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4703708/relationships`
- MCP resource: `mine://4703708/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`