# A C A Sand and Gravel LLC

- **MSHA mine ID:** 3607895
- **Status:** Intermittent
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Erie, PA
- **Operator:** A C A Sand and Gravel LLC
- **Controller:** Charles Kevin Will; Deborah Afton Will
- **Public source rows linked:** 412
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-18T09:31:49.615Z

## Current entity hierarchy

**Charles Kevin Will; Deborah Afton Will (0126341) → A C A Sand and Gravel LLC (0073523) → A C A Sand and Gravel LLC (3607895)**

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

## Controller and operator valid-time history

- **Roger E Niemeyer Sr → Rodger E Niemeyer Sr:** 1987-06-01 through 2006-06-07; derived from co-tenure at mine 3607895; source `msha-controller-operator-history`.
- **Cory D  Rose  et al → A C A Sand and Gravel LLC:** 2006-06-08 through 2016-05-17; derived from co-tenure at mine 3607895; source `msha-controller-operator-history`.
- **Anne K  Zawacki  et al → A C A Sand and Gravel LLC:** 2006-06-08 through 2016-05-17; derived from co-tenure at mine 3607895; source `msha-controller-operator-history`.
- **Alex D  Zawacki  et al → A C A Sand and Gravel LLC:** 2006-06-08 through 2016-05-17; derived from co-tenure at mine 3607895; source `msha-controller-operator-history`.
- **Deborah Afton Will et al → A C A Sand and Gravel LLC:** 2016-05-18 through current/open; derived from co-tenure at mine 3607895; source `msha-controller-operator-history`.
- **Charles Kevin Will et al → A C A Sand and Gravel LLC:** 2016-05-18 through current/open; derived from co-tenure at mine 3607895; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 11
- 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: 2026-10-18T09:31:49.615908+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 — 10 since 2021:** Violations and penalties 42 violation rows across the full record; 6 carry an S&S flag and $5,691 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 — 0 tons:** Quarterly production and employment 4K employee hours and 6 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 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 — 9 since 2021:** Inspections 54 inspection events and 755 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 56.14132 — 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 56.20003 — 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 56.14101 — Brakes.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.14110 — Flying or falling materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14110
- **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 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 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.9314 — Trimming stockpile and muckpile faces.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9314

## Source coverage

- **Addresses of Record:** 1 rows; 2020-03-24 through 2020-03-24; source ID `msha-addresses`
- **Assessed Violations:** 42 rows; 2001-08-30 through 2024-04-17; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2013-01-11 through 2013-01-11; source ID `msha-conferences`
- **Controller and Operator History:** 6 rows; 1987-06-01 through 2006-06-08; source ID `msha-controller-operator-history`
- **Inspections:** 54 rows; 2000-08-10 through 2025-12-04; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 194 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 49 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; 2003-10-07 through 2024-04-18; source ID `msha-personal-health-samples`
- **Violations:** 42 rows; 2001-08-30 through 2024-04-17; 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/a-c-a-sand-and-gravel-llc-3607895`
- JSON: `/api/v1/mines/a-c-a-sand-and-gravel-llc-3607895`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3607895/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3607895/relationships`
- MCP resource: `mine://3607895/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`