Data / Mines / New Jersey / Stone mines
Stone mines in New Jersey: 18 open mines and MSHA citations
MSHA lists 18 open stone mines in New Jersey, run by 13 operators and employing 423 people. Since January 1, 2022 its inspectors issued 388 citations and orders there with $100,649 in proposed penalties, and operators reported 110 injury or illness cases. The operators with the most open mines are Tilcon New York Inc; Vulcan Construction Materials, LLC; Stavola Construction Materials Inc. Data from MSHA, November 6, 2026.
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- Open mines
- 18
- Operators
- 13
- Employees
- 423
- Active
- 15
- Intermittent
- 2
- Temporarily Idled
- 1
- Citations and orders since January 1, 2022
- 388
- Significant and substantial
- 67 (17.3%)
- Closure orders
- 4
- High negligence or reckless
- 11
- Proposed penalties
- $100,649
- Amount paid so far
- $91,045
- Inspections
- 243
- Inspector hours on site
- 3,360
- Citations per inspection
- 1.60 (all mines 2.30)
- Accident reports
- 113
- Injury and illness cases
- 110
- Fatalities
- 0
- Latest MSHA record
- November 2, 2026
Operators with the most open mines in New Jersey
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 |
|---|---|---|---|---|---|
| Tilcon New York Inc | 4 | 117 | 63 | $16,182 | 22 |
| Vulcan Construction Materials, LLC | 3 | 48 | 73 | $22,266 | 15 |
| Stavola Construction Materials Inc | 1 | 36 | 46 | $9,407 | 11 |
| Trap Rock Industries LLC | 1 | 68 | 46 | $22,786 | 14 |
| Weldon Quarry Company LLC | 1 | 23 | 33 | $6,144 | 6 |
| Fanwood Crushed Stone | 1 | 30 | 30 | $5,168 | 2 |
| Gibralter Rock Inc. T-A Gibraltar Rock, Belle Mead | 1 | 15 | 27 | $7,992 | 14 |
| Braen Royalties, LLC | 1 | 31 | 26 | $3,957 | 9 |
| Oldwick Materials LLC | 1 | 7 | 14 | $2,317 | 5 |
| Braen Aggregates LLC | 1 | 16 | 10 | $1,446 | 1 |
| Liberty Stone & Aggregates-Clinton Quarry | 1 | 0 | 9 | $1,538 | 5 |
| Stone Industries Inc | 1 | 20 | 6 | $743 | 4 |
| Riverdale Quarry LLC | 1 | 12 | 5 | $703 | 2 |
Operators with the most citations in New Jersey
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Vulcan Construction Materials, LLC | 3 | 48 | 73 | $22,266 | 15 |
| Tilcon New York Inc | 4 | 117 | 63 | $16,182 | 22 |
| Stavola Construction Materials Inc | 1 | 36 | 46 | $9,407 | 11 |
| Trap Rock Industries LLC | 1 | 68 | 46 | $22,786 | 14 |
| Weldon Quarry Company LLC | 1 | 23 | 33 | $6,144 | 6 |
| Fanwood Crushed Stone | 1 | 30 | 30 | $5,168 | 2 |
| Gibralter Rock Inc. T-A Gibraltar Rock, Belle Mead | 1 | 15 | 27 | $7,992 | 14 |
| Braen Royalties, LLC | 1 | 31 | 26 | $3,957 | 9 |
| Oldwick Materials LLC | 1 | 7 | 14 | $2,317 | 5 |
| Braen Aggregates LLC | 1 | 16 | 10 | $1,446 | 1 |
| Liberty Stone & Aggregates-Clinton Quarry | 1 | 0 | 9 | $1,538 | 5 |
| Stone Industries Inc | 1 | 20 | 6 | $743 | 4 |
| Riverdale Quarry LLC | 1 | 12 | 5 | $703 | 2 |
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 |
|---|---|---|---|---|---|
| Mount Hope Quarry | Tilcon New York Inc | Morris County, NJ | Crushed, broken granite | 70 | 47 |
| Kingston Quarry | Trap Rock Industries LLC | Somerset County, NJ | Crushed, broken granite | 68 | 46 |
| Stavola Construction Materials, Inc. | Stavola Construction Materials Inc | Somerset County, NJ | Crushed, broken traprock | 36 | 46 |
| Lake Hopatcong Quarry | Weldon Quarry Company LLC | Sussex County, NJ | Crushed, broken traprock | 23 | 33 |
| Hamburg Quarry | Vulcan Construction Materials, LLC | Sussex County, NJ | Crushed, broken stone | 23 | 31 |
| Fanwood Mine and Mill | Fanwood Crushed Stone | Somerset County, NJ | Crushed, broken traprock | 30 | 30 |
| Belle Mead Quarry | Gibralter Rock Inc. T-A Gibraltar Rock, Belle Mead | Somerset County, NJ | Crushed, broken traprock | 15 | 27 |
| Braen Stone of Sparta | Braen Royalties, LLC | Sussex County, NJ | Crushed, broken limestone | 31 | 26 |
| Glen Gardner Quarry | Vulcan Construction Materials, LLC | Hunterdon County, NJ | Crushed, broken stone | 12 | 24 |
| Wantage Stone | Vulcan Construction Materials, LLC | Sussex County, NJ | Lime | 13 | 18 |
| Pompton Lakes Quarry | Tilcon New York Inc | Passaic County, NJ | Crushed, broken traprock | 40 | 14 |
| Oldwick Materials LLC | Oldwick Materials LLC | Hunterdon County, NJ | Crushed, broken traprock | 7 | 14 |
| Franklin Quarry | Braen Aggregates LLC | Sussex County, NJ | Crushed, broken limestone | 16 | 10 |
| Liberty Stone & Aggregates-Clinton | Liberty Stone & Aggregates-Clinton Quarry | Hunterdon County, NJ | Crushed, broken slate | 0 | 9 |
| Stone Industries, Inc. | Stone Industries Inc | Passaic County, NJ | Crushed, broken sandstone | 20 | 6 |
| Riverdale Quarry | Riverdale Quarry LLC | Morris County, NJ | Crushed, broken granite | 12 | 5 |
| Byram Aggregates | Tilcon New York Inc | Sussex County, NJ | Crushed, broken granite | 6 | 1 |
| Oxford Quarry & Mill | Tilcon New York Inc | Warren County, NJ | Crushed, broken granite | 1 | 1 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken traprock | 6 | 33.3% |
| Crushed, broken granite | 5 | 27.8% |
| Crushed, broken limestone | 2 | 11.1% |
| Crushed, broken stone | 2 | 11.1% |
| Crushed, broken sandstone | 1 | 5.6% |
| Lime | 1 | 5.6% |
| Crushed, broken slate | 1 | 5.6% |
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 | 83 | 10 | $18,427 | 31 |
| 2023 | 71 | 10 | $21,011 | 19 |
| 2024 | 49 | 4 | $8,735 | 23 |
| 2025 | 82 | 22 | $31,472 | 22 |
| 2026 | 103 | 21 | $21,004 | 15 |
Standards cited most at stone mines in New Jersey
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 56.14112 | Surface metal and nonmetal mines | 48 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 38 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 37 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 31 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 28 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.14130 | Surface metal and nonmetal mines | 5 |
Injury and illness cases at stone mines in New Jersey
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 1 |
| Days away from work or restricted activity | 79 |
| No lost time, or an occupational illness | 30 |
What the accident reports at stone mines in New Jersey describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 38 |
| Slip or fall of person | 19 |
| Machinery | 16 |
| Handtools (nonpowered) | 13 |
| Powered haulage | 8 |
| Other | 6 |
| Disorders (repeated trauma) | 6 |
| Falling/sliding/rolling materials | 2 |
| Fire | 2 |
| Exploding vessels under pressure | 1 |
Equipment named in accident reports at stone mines in New Jersey
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 13 |
| Hand tools (powered) | 7 |
| Screen | 7 |
| Front-end loader | 7 |
| Welding machine | 4 |
| Conveyor | 3 |
| Ore haulage trucks - off highway trucks | 2 |
| Trucks | 1 |
| Washers | 1 |
| Dimension stone machinery | 1 |
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.