Data / Mines / Puerto Rico / Manati County
Mines in Manati County, Puerto Rico: 8 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 8 open mines in Manati County, Puerto Rico, run by 8 operators and employing 145 people. Since January 1, 2022 its inspectors issued 175 citations and orders there with $75,956 in proposed penalties, and operators reported 7 injury or illness cases. The operators with the most open mines are Argos Puerto Rico Corp; Empresas Mundo Real Inc; Cantera Roca Dura LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 8
- Operators
- 8
- Employees
- 145
- Active
- 7
- Intermittent
- 1
- Citations and orders since January 1, 2022
- 175
- Significant and substantial
- 31 (17.7%)
- Closure orders
- 3
- High negligence or reckless
- 14
- Proposed penalties
- $75,956
- Amount paid so far
- $51,209
- Inspections
- 218
- Inspector hours on site
- 1,463
- Citations per inspection
- 0.80 (all mines 2.30)
- Accident reports
- 7
- Injury and illness cases
- 7
- Fatalities
- 0
- Latest MSHA record
- October 21, 2026
Operators with the most open mines in Manati County, Puerto Rico
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Argos Puerto Rico Corp | 1 | 50 | 60 | $50,021 | 1 |
| Empresas Mundo Real Inc | 1 | 14 | 31 | $6,514 | 1 |
| Cantera Roca Dura LLC | 1 | 7 | 27 | $7,564 | 0 |
| Productora De Agregados Inc | 1 | 31 | 17 | $5,388 | 2 |
| Cantera Carmelo Inc | 1 | 22 | 13 | $2,089 | 3 |
| Dorado Quarry and Recycling Corp | 1 | 11 | 13 | $1,997 | 0 |
| Transporte Rodriguez Asfalto, Inc. | 1 | 7 | 13 | $2,250 | 0 |
| San Lorenzo Mine, Inc. | 1 | 3 | 1 | $133 | 0 |
Operators with the most citations in Manati County, Puerto Rico
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Argos Puerto Rico Corp | 1 | 50 | 60 | $50,021 | 1 |
| Empresas Mundo Real Inc | 1 | 14 | 31 | $6,514 | 1 |
| Cantera Roca Dura LLC | 1 | 7 | 27 | $7,564 | 0 |
| Productora De Agregados Inc | 1 | 31 | 17 | $5,388 | 2 |
| Cantera Carmelo Inc | 1 | 22 | 13 | $2,089 | 3 |
| Dorado Quarry and Recycling Corp | 1 | 11 | 13 | $1,997 | 0 |
| Transporte Rodriguez Asfalto, Inc. | 1 | 7 | 13 | $2,250 | 0 |
| San Lorenzo Mine, Inc. | 1 | 3 | 1 | $133 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Cantera Espinosa | Argos Puerto Rico Corp | Manati County, PR | Cement | 50 | 60 |
| Cantera Mundo Real | Empresas Mundo Real Inc | Manati County, PR | Crushed, broken limestone | 14 | 31 |
| Cantera Roca Dura Inc | Cantera Roca Dura LLC | Manati County, PR | Crushed, broken stone | 7 | 27 |
| Cantera Vega Baja | Productora De Agregados Inc | Manati County, PR | Crushed, broken traprock | 31 | 17 |
| Nuestra Senora Del Carmen | Cantera Carmelo Inc | Manati County, PR | Crushed, broken limestone | 22 | 13 |
| Cantera Dorado | Dorado Quarry and Recycling Corp | Manati County, PR | Crushed, broken limestone | 11 | 13 |
| Gravero Rodriguez, Manati | Transporte Rodriguez Asfalto, Inc. | Manati County, PR | Construction sand and gravel | 7 | 13 |
| San Lorenzo Mine, Inc. | San Lorenzo Mine, Inc. | Manati County, PR | Construction sand and gravel | 3 | 1 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken limestone | 3 | 37.5% |
| Construction sand and gravel | 2 | 25% |
| Cement | 1 | 12.5% |
| Crushed, broken traprock | 1 | 12.5% |
| Crushed, broken stone | 1 | 12.5% |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 43 | 12 | $18,659 | 2 |
| 2023 | 55 | 11 | $33,158 | 0 |
| 2024 | 36 | 1 | $6,711 | 0 |
| 2025 | 33 | 5 | $15,490 | 2 |
| 2026 | 8 | 2 | $1,938 | 3 |
Standards cited most at mines in Manati County, Puerto Rico
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 34 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 6 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 6 |
| 30 CFR 56.14131 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.11027 | Surface metal and nonmetal mines | 4 |
Injury and illness cases at mines in Manati County, Puerto Rico
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 7 |
What the accident reports at mines in Manati County, Puerto Rico describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 2 |
| Handling of materials | 2 |
| Electrical | 1 |
| Handtools (nonpowered) | 1 |
| Machinery | 1 |
Equipment named in accident reports at mines in Manati County, Puerto Rico
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 1 |
| Hand tools (powered) | 1 |
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.