# Dry Valley Mine

- **MSHA mine ID:** 1001873
- **Status:** Abandoned
- **Type / commodity:** Surface / Phosphate Rock
- **Location:** Caribou, ID
- **Operator:** URS Corp
- **Controller:** AECOM
- **Public source rows linked:** 1,145
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**AECOM (0116721) → URS Corp (L17528) → Dry Valley Mine (1001873)**

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

## Controller and operator valid-time history

- **FMC Corp → Fmc Corp:** 1991-09-01 through 2000-04-16; derived from co-tenure at mine 1001873; source `msha-controller-operator-history`.
- **Paul  Howes → Astaris Production Llc:** 2000-04-17 through 2005-03-14; derived from co-tenure at mine 1001873; source `msha-controller-operator-history`.
- **Washington Group International Inc → URS Corp:** 2005-03-15 through 2007-11-14; derived from co-tenure at mine 1001873; source `msha-controller-operator-history`.
- **URS Corporation → URS Corp:** 2007-11-15 through 2014-12-31; derived from co-tenure at mine 1001873; source `msha-controller-operator-history`.
- **AECOM → URS Corp:** 2015-01-01 through current/open; derived from co-tenure at mine 1001873; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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 19 historical accident/injury rows; 0 coded fatalities and 604 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 40 violation rows across the full record; 3 carry an S&S flag and $4,067 appears in current assessed amounts.
3. **HEALTH — 10 samples:** Occupational health samples 10 personal. 1 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 3K employee hours and 5 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 31 linked rows:** Contests, conferences and decisions 15 contested-violation rows, 15 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 21 inspection events and 722 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 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.11016 — Snow and ice on walkways and travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11016
- **30 CFR 56.12016 — Work on electrically-powered equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12016
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012
- **30 CFR 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.16006 — Protection of gas cylinder valves.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16006
- **30 CFR 56.14107 — Moving machine parts.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101

## Source coverage

- **Accident, Injuries, and Illnesses:** 19 rows; 2000-02-26 through 2009-06-14; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2010-03-01 through 2010-03-01; source ID `msha-addresses`
- **Assessed Violations:** 40 rows; 2000-01-25 through 2009-12-29; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 15 rows; 2010-09-27 through 2012-02-03; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2003-01-14 through 2003-01-14; source ID `msha-conferences`
- **Contested Violations:** 15 rows; 2008-07-23 through 2009-07-21; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 741 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 139 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1991-09-01 through 2005-03-15; source ID `msha-controller-operator-history`
- **Inspections:** 21 rows; 2000-01-25 through 2009-12-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 76 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 21 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:** 10 rows; 2000-11-15 through 2009-04-28; source ID `msha-personal-health-samples`
- **Violations:** 40 rows; 2000-01-25 through 2009-12-29; 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/dry-valley-mine-1001873`
- JSON: `/api/v1/mines/dry-valley-mine-1001873`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1001873/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1001873/relationships`
- MCP resource: `mine://1001873/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`