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MSHA mine register by county

Mines in Warren County, New Jersey

Warren County, New Jersey has 18 mines on MSHA's register: 5 active, 1 intermittent, 12 abandoned. 77 accidents have been reported at these mines between 1986 and 2025. Inspectors have issued 783 citations.

Every mine MSHA has registered in Warren 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 Warren County →

Mines on register
18
Active
5
Fatalities on record
0
Citations issued
783
0 underground · 18 surface · 0 facilities 0 coal · 18 metal and non-metal 1 intermittent 12 abandoned 77 reported accidents, 1986–2025
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.
Warren County, New Jersey · Population 110,238
0.1%
Mining share of county employment
$99,596
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
Harmony Sand & Gravel Inc 2 2 0
Bill Griffett Sand & Gravel 1 0 0
Birdsboro Slag Products Company Inc 1 0 0
Commercial Care Inc 1 0 0
Hutchinson Sand & Gravel 1 0 0
Kelsey Humus Company 1 0 0
Naceville Materials J.V. 1 1 0
PC Sand & Gravel 1 1 0
Penn Jersey Paving Materials Inc 1 0 0
Perrucci Contracting Company Inc 1 0 0
Mines in Warren County18 on register
  1. Belvidere Sand & Gravel
    Surface metal/non-metal · Naceville Materials J.V. · MSHA ID 2801000
    Active
  2. Riverline Aggregates
    Surface metal/non-metal · Riverline Aggregates LLC · MSHA ID 2800469
    Active
  3. Harmony Sand & Gravel Inc Pl #1
    Surface metal/non-metal · Harmony Sand & Gravel Inc · MSHA ID 2800562
    Active
  4. PioCosta t/a PC Sand & Gravel LLC
    Surface metal/non-metal · PC Sand & Gravel · MSHA ID 2800975
    Active
  5. Harmony Sand & Gravel Inc PL #2
    Surface metal/non-metal · Harmony Sand & Gravel Inc · MSHA ID 2800970
    Active
  6. Oxford Quarry & Mill
    Surface metal/non-metal · Tilcon New York Inc · MSHA ID 2800541
    Intermittent
  7. Trans Mix Sand & Gravel Incorporated
    Surface metal/non-metal · Trans Mix Sand & Gravel Inc · MSHA ID 2800780
    Abandoned
  8. BILL GRIFFETT SAND & GRAVEL
    Surface metal/non-metal · Bill Griffett Sand & Gravel · MSHA ID 2800999
    Abandoned
  9. Carpentersville Plant
    Surface metal/non-metal · Birdsboro Slag Products Company Inc · MSHA ID 2800971
    Abandoned
  10. Commercial Care Inc
    Surface metal/non-metal · Commercial Care Inc · MSHA ID 2800964
    Abandoned
  11. Hutchinson Pit
    Surface metal/non-metal · Hutchinson Sand & Gravel · MSHA ID 2800947
    Abandoned
  12. Partiac Peat Company Pit
    Surface metal/non-metal · Kelsey Humus Company · MSHA ID 2800416
    Abandoned
  13. Perrucci Quarry And Mill
    Surface metal/non-metal · Perrucci Contracting Company Inc · MSHA ID 2800023
    Abandoned
  14. R H Materials Company Incorporated
    Surface metal/non-metal · R H Materials Company Inc · MSHA ID 2800958
    Abandoned
  15. S R U
    Surface metal/non-metal · S R U Trucking · MSHA ID 2801001
    Abandoned
  16. Schafer'S Pit
    Surface metal/non-metal · Penn Jersey Paving Materials Inc · MSHA ID 2800992
    Abandoned
  17. Steckel Concrete Company Incorporated
    Surface metal/non-metal · Steckel Concrete Company Inc · MSHA ID 2800554
    Abandoned
  18. Wulff Enterprises
    Surface metal/non-metal · Wulff Enterprises · MSHA ID 2800977
    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.