Data / Mines / Guam / Fidian Quarry
Fidian Quarry, Guam County, Guam: 0 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Fidian Quarry is an active crushed, broken stone processing facility in Guam County, Guam, operated by Hawaiian Rock Products with 70 employees on MSHA's record (mine ID 6600006). Since January 1, 2022 MSHA inspectors issued 0 citations and orders there with $0 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Fidian Quarry (MSHA mine ID 6600006) in Guam County, Guam: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 6600006
- Status
- Active since October 20, 2025
- Main commodity
- Crushed, broken stone
- Mine type
- Facility
- County
- Guam County, Guam
- Nearest town
- Mangilao
- Operator
- Hawaiian Rock Products
- Parent company
- Mitsubishi Corp
- Employees
- 70
- MSHA field office
- San Juan PR Field Office
- Citations and orders since January 1, 2022
- 0
- Inspections
- 0
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
Other open mines in Guam County, Guam
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Smithbridge Guam Inc. | Smithbridge Guam Inc. | Guam County, GU | Construction sand and gravel | 114 | 0 |
| Primet Rock Mine | Primet Rock LLC | Guam County, GU | Crushed, broken limestone | 5 | 0 |
| Fargo Pacific Inc. | Fargo Pacific Inc. | Guam County, GU | Construction sand and gravel | 2 | 0 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.