Data / Mines / Puerto Rico / Stone mines

Stone mines in Puerto Rico: 37 open mines and MSHA citations

MSHA lists 37 open stone mines in Puerto Rico, run by 33 operators and employing 667 people. Since January 1, 2022 its inspectors issued 781 citations and orders there with $317,885 in proposed penalties, and operators reported 87 injury or illness cases. The operators with the most open mines are Rodriguez Aggregates, Corp.; Productora De Agregados Inc; Blue Rock Inc. Data from MSHA, November 6, 2026.

SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.

Open mines

37

Operators

33

Employees

667

Active

35

Intermittent

2

Mines run by individuals, counted and not listed

5

Citations and orders since January 1, 2022

781

Significant and substantial

207 (26.5%)

Closure orders

29

High negligence or reckless

54

Proposed penalties

$317,885

Amount paid so far

$239,355

Inspections

871

Inspector hours on site

5,554

Citations per inspection

0.90 (all mines 2.30)

Accident reports

87

Injury and illness cases

87

Fatalities

0

Latest MSHA record

October 28, 2026

Operators with the most open mines in Puerto Rico

Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.

Operators with the most citations in Puerto Rico

Citations and orders issued since January 1, 2022 at their open mines here.

Mines with the most citations

Open mines, ranked by citations and orders since January 1, 2022.

Main commodities

Citations and injury cases by year

Calendar years since 2022; 2026 runs to the date of the MSHA files.

Standards cited most at stone mines in Puerto Rico

Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.

Injury and illness cases at stone mines in Puerto Rico

Accident reports by degree of injury, as the operator reported them to MSHA.

What the accident reports at stone mines in Puerto Rico describe

Accident classification, as MSHA codes the circumstances that contributed most directly.

Equipment named in accident reports at stone mines in Puerto Rico

Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. 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.