Mining Incidents
MSHA mine register by county

Mines in Mercer County, New Jersey

Mercer County, New Jersey has 3 mines on MSHA's register: 3 abandoned. 127 accidents have been reported at these mines between 1987 and 2021. Inspectors have issued 153 citations.

Every mine MSHA has registered in Mercer County, 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 Mercer County →

Mines on register
3
Active
0
Fatalities on record
0
Citations issued
153
0 underground · 3 surface · 0 facilities 0 coal · 3 metal and non-metal 3 abandoned 127 reported accidents, 1987–2021
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.
Mercer County, New Jersey · Population 383,286
0.0%
Mining share of county employment
$96,333
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
Trap Rock Industries LLC 2 0 0
Mellott Company 1 0 0
Mines in Mercer County3 on register
  1. Moore's Station Quarry
    Surface metal/non-metal · Trap Rock Industries LLC · MSHA ID 2800874
    Abandoned
  2. Pennington Quarry
    Surface metal/non-metal · Trap Rock Industries LLC · MSHA ID 2800032
    Abandoned
  3. Pennington Quarry-Mellott
    Surface metal/non-metal · Mellott Company · MSHA ID 2801036
    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 New JerseyAll 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.