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Mines in Guayama Municipio, Puerto Rico

Guayama Municipio, Puerto Rico has 25 mines on MSHA's register: 1 active, 24 abandoned. 75 accidents have been reported at these mines between 1983 and 2025. Inspectors have issued 662 citations.

Every mine MSHA has registered in Guayama Municipio, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Guayama Municipio →

Mines on register
25
Active
1
Fatalities on record
0
Citations issued
662
0 underground · 25 surface · 0 facilities 0 coal · 25 metal and non-metal 24 abandoned 75 reported accidents, 1983–2025
Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Guayama Municipio, Puerto Rico · Population 35,845
0.5%
Mining share of county employment
$20,273
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
Agregados Borinquen Inc 1 0 0
Best Contracting Corp 1 0 0
Cantera Cayey Inc 1 0 0
Cantera Central Inc 1 0 0
Cantera Hermanos Aponte Inc 1 0 0
Desarolladores de Agregados 1 0 0
Docori Sand & Gravel 1 0 0
Drillex Se 1 0 0
Gravero de San Lorenzo, LLC 1 0 0
GRAVERO LAS 14, INC 1 0 0
Mines in Guayama Municipio25 on register
  1. Productos de Agregados de Gurabo
    Surface metal/non-metal · Productos De Agregados De Gurabo · MSHA ID 5400316
    Active
  2. SAN LORENZO SAND & GRAVEL COMPANY
    Surface metal/non-metal · SAN LORENZO SAND & GRAVEL COMPANY · MSHA ID 5400050
    Abandoned
  3. Cantera Caguas Pta 5
    Surface metal/non-metal · Master Aggregates Toa Baja Corp · MSHA ID 5400275
    Abandoned
  4. Industrias Areneras B & M
    Surface metal/non-metal · Industrias Areneras B & M · MSHA ID 5400376
    Abandoned
  5. Cantera De Jesus
    Surface metal/non-metal · Super Asphalt Pavement, Corp. · MSHA ID 5400438
    Abandoned
  6. Terrassa Sand & Gravel Inc
    Surface metal/non-metal · Terrassa Sand & Gravel Inc · MSHA ID 5400272
    Abandoned
  7. Arenero Comerio
    Surface metal/non-metal · Gravero Rodriguez · MSHA ID 5400397
    Abandoned
  8. Gravero de San Lorenzo, LLC
    Surface metal/non-metal · Gravero de San Lorenzo, LLC · MSHA ID 5400415
    Abandoned
  9. CANTERA CENTRAL
    Surface metal/non-metal · Cantera Central Inc · MSHA ID 5400414
    Abandoned
  10. Hard Rock Quarry No 2
    Surface metal/non-metal · Hard Rock Quarry · MSHA ID 5400465
    Abandoned
  11. GRAVERO LAS 14
    Surface metal/non-metal · GRAVERO LAS 14, INC · MSHA ID 5400491
    Abandoned
  12. ARENERO JAGUAL
    Surface metal/non-metal · Rodriguez De La Torre Inc · MSHA ID 5400429
    Abandoned
  13. DOCORI SAND & GRAVEL
    Surface metal/non-metal · Docori Sand & Gravel · MSHA ID 5400413
    Abandoned
  14. Fintec 1107
    Surface metal/non-metal · RG Engineering, Inc. · MSHA ID 5400495
    Abandoned
  15. Desarolladores de Agregados
    Surface metal/non-metal · Desarolladores de Agregados · MSHA ID 5400452
    Abandoned
  16. PROJ DEL VALLE GRP GUVYANA
    Surface metal/non-metal · Drillex Se · MSHA ID 5400420
    Abandoned
  17. AGREGADOS BORINQUEN
    Surface metal/non-metal · Agregados Borinquen Inc · MSHA ID 5400430
    Abandoned
  18. Arenerd Del Turabo
    Surface metal/non-metal · Best Contracting Corp · MSHA ID 5400232
    Abandoned
  19. Cantera Beatriz
    Surface metal/non-metal · Ramos Baqueros Y Ramos Inc · MSHA ID 5400144
    Abandoned
  20. Cantera Cayey
    Surface metal/non-metal · Cantera Cayey Inc · MSHA ID 5400146
    Abandoned
  21. Cantera Mendez
    Surface metal/non-metal · Julio Mendez Velazquez · MSHA ID 5400111
    Abandoned
  22. Cantera Yaurel
    Surface metal/non-metal · Cantera Hermanos Aponte Inc · MSHA ID 5400205
    Abandoned
  23. GRAVERO PATILLAS
    Surface metal/non-metal · Jjj Constructoresy Agregadosinc · MSHA ID 5400370
    Abandoned
  24. Marmoles Vassco Inc Quarry
    Surface metal/non-metal · Marmoles Vassco Inc · MSHA ID 5400351
    Abandoned
  25. Mobil Crusher - Guayama
    Surface metal/non-metal · Mobil Crusher Inc · MSHA ID 5400337
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in Puerto RicoAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.