# Westmoreland Haystack Mining LLC

- **MSHA mine ID:** 4801757
- **Status:** Abandoned
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Uinta, WY
- **Operator:** Westmoreland Haystack Mining LLC
- **Controller:** Westmoreland Mining Holdings LLC
- **Public source rows linked:** 774
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Westmoreland Mining Holdings LLC (0146581) → Westmoreland Haystack Mining LLC (0119729) → Westmoreland Haystack Mining LLC (4801757)**

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

## Controller and operator valid-time history

- **Peter Kiewit Sons' Inc → Westmoreland Haystack Mining LLC:** 2011-10-03 through 2017-01-05; derived from co-tenure at mine 4801757; source `msha-controller-operator-history`.
- **Westmoreland Coal Company → Westmoreland Haystack Mining LLC:** 2017-01-06 through 2019-03-14; derived from co-tenure at mine 4801757; source `msha-controller-operator-history`.
- **Westmoreland Mining Holdings LLC → Westmoreland Haystack Mining LLC:** 2019-03-15 through current/open; derived from co-tenure at mine 4801757; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- 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 2 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 19 violation rows across the full record; 3 carry an S&S flag and $2,192 appears in current assessed amounts.
3. **HEALTH — 20 samples:** Occupational health samples 9 coal dust; 2 coal quartz; 9 noise. 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 5 employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 0 since 2021:** Inspections 6 inspection events and 352 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 77.800-2 — Testing, examination, and maintenance of circuit breakers; record.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-I/section-77.800-2
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 47.42 — Label contents.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.42
- **30 CFR 77.1607 — Loading and haulage equipment; operation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1607
- **30 CFR 77.1110 — Examination and maintenance of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.208 — Storage of materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.208
- **30 CFR 45.4 — Independent contractor register.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-45/section-45.4
- **30 CFR 77.1703 — First-Aid training; supervisory employees.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1703
- **30 CFR 47.51 — Requirement for an MSDS.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-F/section-47.51
- **30 CFR 77.412 — Compressed air systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.412

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2012-03-05 through 2012-07-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-09-10 through 2024-09-10; source ID `msha-addresses`
- **Assessed Violations:** 19 rows; 2012-04-12 through 2014-07-23; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 9 rows; 2012-04-19 through 2012-10-04; source ID `msha-coal-dust-samples`
- **Contractor Employment and Production — Quarterly:** 538 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 88 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2011-10-03 through 2011-10-03; source ID `msha-controller-operator-history`
- **Inspections:** 6 rows; 2012-03-26 through 2014-04-11; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 67 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 10 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 9 rows; 2012-04-18 through 2012-10-10; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 2 rows; 2012-10-04 through 2012-11-29; source ID `msha-quartz-samples`
- **Violations:** 19 rows; 2012-04-12 through 2014-07-23; 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/westmoreland-haystack-mining-llc-4801757`
- JSON: `/api/v1/mines/westmoreland-haystack-mining-llc-4801757`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4801757/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4801757/relationships`
- MCP resource: `mine://4801757/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`