# Wagner Quarries

- **MSHA mine ID:** 3300175
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Erie, OH
- **Operator:** Heidelberg Materials Midwest Agg, Inc.
- **Controller:** Heidelberg Materials AG
- **Public source rows linked:** 4,484
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Heidelberg Materials AG (M00004) → Heidelberg Materials Midwest Agg, Inc. (L16286) → Wagner Quarries (3300175)**

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

## Controller and operator valid-time history

- **The Wagner Quarries Company → The Wagner Quarries Company:** 1950-01-01 through 2003-07-25; derived from co-tenure at mine 3300175; source `msha-controller-operator-history`.
- **Hanson PLC → Heidelberg Materials Midwest Agg, Inc.:** 2003-07-26 through 2007-08-22; derived from co-tenure at mine 3300175; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Heidelberg Materials Midwest Agg, Inc.:** 2007-08-23 through current/open; derived from co-tenure at mine 3300175; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- 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 — 6 since 2021:** Accidents and injuries 20 historical accident/injury rows; 0 coded fatalities and 901 lost days across the published record.
2. **COMPLIANCE — 176 since 2021:** Violations and penalties 392 violation rows across the full record; 65 carry an S&S flag and $120,149 appears in current assessed amounts.
3. **HEALTH — 289 samples:** Occupational health samples 289 personal. 2 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 17K employee hours and 30 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 34 linked rows:** Contests, conferences and decisions 10 contested-violation rows, 11 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.
6. **CONTRACTORS — 13 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 — 30 since 2021:** Inspections 91 inspection events and 2K 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 56.20010 — Retaining dams.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20010
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **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
- **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
- **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 56.4201 — 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.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12019
- **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 56.18002 — Examination of working places.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002

## Source coverage

- **Accident, Injuries, and Illnesses:** 20 rows; 2000-04-13 through 2026-08-24; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1996-10-07 through 1996-10-07; source ID `msha-addresses`
- **Assessed Violations:** 392 rows; 2000-01-19 through 2026-08-05; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2004-04-26 through 2011-09-07; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 13 rows; 2005-09-01 through 2020-08-24; source ID `msha-conferences`
- **Contested Violations:** 10 rows; 2009-08-10 through 2026-07-28; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,370 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 504 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 2003-07-26; source ID `msha-controller-operator-history`
- **Inspections:** 91 rows; 2000-01-19 through 2026-08-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 308 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 79 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:** 289 rows; 2000-08-22 through 2026-07-29; source ID `msha-personal-health-samples`
- **Violations:** 392 rows; 2000-01-19 through 2026-08-05; 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/wagner-quarries-3300175`
- JSON: `/api/v1/mines/wagner-quarries-3300175`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3300175/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3300175/relationships`
- MCP resource: `mine://3300175/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`