Data / Mines / New Jersey / Cumberland County
Mines in Cumberland County, New Jersey: 10 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 10 open mines in Cumberland County, New Jersey, run by 8 operators and employing 148 people. Since January 1, 2022 its inspectors issued 160 citations and orders there with $30,398 in proposed penalties, and operators reported 13 injury or illness cases. The operators with the most open mines are Whibco of New Jersey, Inc.; U.S. Silica Company, LLC; Covia Solutions LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 10
- Operators
- 8
- Employees
- 148
- Active
- 9
- Intermittent
- 1
- Citations and orders since January 1, 2022
- 160
- Significant and substantial
- 23 (14.4%)
- Closure orders
- 3
- High negligence or reckless
- 7
- Proposed penalties
- $30,398
- Amount paid so far
- $28,875
- Inspections
- 125
- Inspector hours on site
- 1,088
- Citations per inspection
- 1.28 (all mines 2.30)
- Accident reports
- 14
- Injury and illness cases
- 13
- Fatalities
- 0
- Latest MSHA record
- September 30, 2026
Operators with the most open mines in Cumberland County, 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 |
|---|---|---|---|---|---|
| Whibco of New Jersey, Inc. | 2 | 31 | 26 | $3,786 | 3 |
| U.S. Silica Company, LLC | 2 | 34 | 21 | $4,637 | 2 |
| Covia Solutions LLC | 1 | 33 | 38 | $10,833 | 2 |
| South State Inc | 1 | 3 | 20 | $2,995 | 0 |
| Dun-Rite Sand & Gravel Company Inc | 1 | 26 | 18 | $2,760 | 1 |
| Heidelberg Materials Northeast LLC | 1 | 11 | 17 | $2,461 | 3 |
| Sahara Sand of Port Norris | 1 | 9 | 11 | $1,593 | 1 |
| Diamond Materials, LLC | 1 | 1 | 9 | $1,333 | 1 |
Operators with the most citations in Cumberland County, 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 |
|---|---|---|---|---|---|
| Covia Solutions LLC | 1 | 33 | 38 | $10,833 | 2 |
| Whibco of New Jersey, Inc. | 2 | 31 | 26 | $3,786 | 3 |
| U.S. Silica Company, LLC | 2 | 34 | 21 | $4,637 | 2 |
| South State Inc | 1 | 3 | 20 | $2,995 | 0 |
| Dun-Rite Sand & Gravel Company Inc | 1 | 26 | 18 | $2,760 | 1 |
| Heidelberg Materials Northeast LLC | 1 | 11 | 17 | $2,461 | 3 |
| Sahara Sand of Port Norris | 1 | 9 | 11 | $1,593 | 1 |
| Diamond Materials, LLC | 1 | 1 | 9 | $1,333 | 1 |
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 |
|---|---|---|---|---|---|
| Dividing Creek Plant | Covia Solutions LLC | Cumberland County, NJ | Construction sand and gravel | 33 | 38 |
| Port Elizabeth Plant | Whibco of New Jersey, Inc. | Cumberland County, NJ | Construction sand and gravel | 30 | 22 |
| South State Inc Dredge & Plant | South State Inc | Cumberland County, NJ | Construction sand and gravel | 3 | 20 |
| Mauricetown Plant | U.S. Silica Company, LLC | Cumberland County, NJ | Sand, industrial | 33 | 19 |
| Plant #4 | Dun-Rite Sand & Gravel Company Inc | Cumberland County, NJ | Construction sand and gravel | 26 | 18 |
| Newport Plant | Heidelberg Materials Northeast LLC | Cumberland County, NJ | Construction sand and gravel | 11 | 17 |
| Sahara Sand of Port Norris | Sahara Sand of Port Norris | Cumberland County, NJ | Construction sand and gravel | 9 | 11 |
| Fox Road Sand Pit | Diamond Materials, LLC | Cumberland County, NJ | Sand, industrial | 1 | 9 |
| Dorchester Plant | Whibco of New Jersey, Inc. | Cumberland County, NJ | Construction sand and gravel | 1 | 4 |
| Port Elizabeth Plant | U.S. Silica Company, LLC | Cumberland County, NJ | Construction sand and gravel | 1 | 2 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 8 | 80% |
| Sand, industrial | 2 | 20% |
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 | 29 | 2 | $4,346 | 2 |
| 2023 | 41 | 6 | $9,550 | 3 |
| 2024 | 44 | 3 | $8,286 | 1 |
| 2025 | 23 | 4 | $3,556 | 5 |
| 2026 | 23 | 8 | $4,660 | 2 |
Standards cited most at mines in Cumberland County, 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 | 17 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 7 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 7 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 4 |
| 30 CFR 41.12 | Notice of legal identity | 3 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at mines in Cumberland County, New Jersey
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 9 |
| No lost time, or an occupational illness | 4 |
What the accident reports at mines in Cumberland County, New Jersey describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 6 |
| Slip or fall of person | 4 |
| Powered haulage | 3 |
| Striking or bumping | 1 |
Equipment named in accident reports at mines in Cumberland County, New Jersey
| Equipment | Reports |
|---|---|
| Forklift | 2 |
| Boats | 1 |
| Conveyor | 1 |
| Pump | 1 |
| Ore haulage trucks - on highway trucks | 1 |
| Shovel | 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.