Data / Mines / Maine / Stone mines
Stone mines in Maine: 54 open mines and MSHA citations
MSHA lists 54 open stone mines in Maine, run by 39 operators and employing 191 people. Since January 1, 2022 its inspectors issued 427 citations and orders there with $84,071 in proposed penalties, and operators reported 16 injury or illness cases. The operators with the most open mines are Eurovia Atlantic Coast LLC; Pike Industries; Sargent Corporation. Data from MSHA, November 6, 2026.
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- Open mines
- 54
- Operators
- 39
- Employees
- 191
- Intermittent
- 38
- Active
- 12
- Temporarily Idled
- 4
- Mines run by individuals, counted and not listed
- 4
- Citations and orders since January 1, 2022
- 427
- Significant and substantial
- 77 (18.0%)
- Closure orders
- 20
- High negligence or reckless
- 46
- Proposed penalties
- $84,071
- Amount paid so far
- $75,148
- Inspections
- 283
- Inspector hours on site
- 1,496
- Citations per inspection
- 1.51 (all mines 2.30)
- Accident reports
- 16
- Injury and illness cases
- 16
- Fatalities
- 0
- Latest MSHA record
- November 3, 2026
Operators with the most open mines in Maine
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
Operators with the most citations in Maine
Citations and orders issued since January 1, 2022 at their open mines here.
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 |
|---|---|---|---|---|---|
| Portable Pioneer Plant | Ferraiolo Construction Company Inc | Knox County, ME | Crushed, broken limestone | 4 | 37 |
| Heath Quarry | P & K Sand & Gravel Inc | Cumberland County, ME | Crushed, broken stone | 12 | 31 |
| Topsham Pit & Mill | Crooker Construction, LLC | Sagadahoc County, ME | Crushed, broken granite | 21 | 26 |
| Etna Quarry | B & C Sand and Gravel, Inc. | Penobscot County, ME | Crushed, broken stone | 2 | 25 |
| Stonefields Crusher | Hissong Ready Mix and Aggregates LLC | York County, ME | Crushed, broken stone | 3 | 22 |
| Englishmen's Bay Quarry | J.C. Stone Inc. | Washington County, ME | Dimension stone | 2 | 22 |
| Pioneer 3055 #810005 | Sargent Corporation | Penobscot County, ME | Crushed, broken stone | 8 | 21 |
| Wells Quarry C624 | Pike Industries | York County, ME | Crushed, broken granite | 10 | 17 |
| Jci Jaw Crusher-Wheels | Jig Aggregates | Androscoggin County, ME | Crushed, broken stone | 2 | 15 |
| Quarry 1 | Mattingly Products Company Inc | Somerset County, ME | Crushed, broken limestone | 8 | 14 |
| Albany Pit | Drew Corporation | Oxford County, ME | Crushed, broken stone | 4 | 13 |
| Dodlin Hill Quarry | Rockport Granite Inc. | Somerset County, ME | Dimension granite | 4 | 12 |
| Crotch Island | Georgia Stone Management LLC | Hancock County, ME | Dimension stone | 3 | 12 |
| York Quarry | Rockport Granite Inc. | York County, ME | Dimension stone | 3 | 12 |
| Sangerville Portable | Haley's Inc | Piscataquis County, ME | Crushed, broken stone | 1 | 12 |
| Hill Gravel | Hill Gravel | York County, ME | Dimension stone | 2 | 10 |
| Brandy Brook Quarry | R J Grondin & Sons | Cumberland County, ME | Crushed, broken stone | 4 | 9 |
| Mills Excavation Inc. | Mills Excavation, Inc. | Knox County, ME | Crushed, broken stone | 1 | 9 |
| Millennium Granite | Millennium Granite LLC | York County, ME | Dimension granite | 5 | 8 |
| C636-Sidney Crushing Facility | Pike Industries | Kennebec County, ME | Crushed, broken limestone | 8 | 7 |
| Northwoods Quarry | Northwoods Granite and Landscapes Inc | Hancock County, ME | Dimension granite | 3 | 7 |
| Cornville Quarry | East Ridge Aggregate | Somerset County, ME | Crushed, broken stone | 1 | 7 |
| Odlin Road Mill & Quarry | Eurovia Atlantic Coast LLC | Penobscot County, ME | Crushed, broken traprock | 12 | 6 |
| 341 Rock Quarry | Wilson Construction & Landscaping Inc | Knox County, ME | Crushed, broken stone | 4 | 6 |
| Whales Back Quarry | Bald Mountain LLC | Hancock County, ME | Dimension granite | 3 | 6 |
| Presque Isle Quarry & Mill | Eurovia Atlantic Coast LLC | Aroostook County, ME | Crushed, broken limestone | 4 | 5 |
| Pioneer/Portable 2 Unit #412 | Shaw Brothers Construction, Inc. | Cumberland County, ME | Crushed, broken traprock | 3 | 5 |
| Quarry One | Chase Excavating Inc | Cumberland County, ME | Crushed, broken stone | 2 | 5 |
| Bowdoin Quarry | Sargent Corporation | Sagadahoc County, ME | Crushed, broken stone | 5 | 4 |
| Astec 350 P212209 | Eurovia Atlantic Coast LLC | Penobscot County, ME | Crushed, broken stone | 2 | 4 |
| Portable Primary Pioneer 30X42 | Owen J Folsom Inc | Penobscot County, ME | Crushed, broken stone | 3 | 3 |
| Rock Ridge Quarry | A H Grover Inc | Cumberland County, ME | Crushed, broken stone | 2 | 3 |
| Cin 000171 | Soderberg Company, Inc. | Aroostook County, ME | Crushed, broken limestone | 4 | 2 |
| Durepo Quarry | Soderberg Company, Inc. | Aroostook County, ME | Crushed, broken limestone | 4 | 2 |
| McGillan Quarry | McGillan Incorporated | Aroostook County, ME | Crushed, broken stone | 3 | 2 |
| Belfast Quarry | Eurovia Atlantic Coast LLC | Waldo County, ME | Crushed, broken stone | 2 | 2 |
| Spring St Quarry C606 | Pike Industries | Cumberland County, ME | Crushed, broken stone | 1 | 2 |
| Mosquito Mountain Quarry | Freshwater Stone & Brick Inc | Waldo County, ME | Dimension granite | 2 | 1 |
| Astec 300 P192051 | Eurovia Atlantic Coast LLC | Aroostook County, ME | Crushed, broken stone | 2 | 1 |
| Jonesboro Red Quarry | J.C. Stone Inc. | Washington County, ME | Dimension stone | 0 | 1 |
| Emerson Pit | Nickerson Construction Inc. | Aroostook County, ME | Crushed, broken stone | 3 | 0 |
| Pegson Premier Track Crusher 44X26 | Scott Dugas Trucking & Excavating Inc | Cumberland County, ME | Crushed, broken stone | 2 | 0 |
| Charlotte Quarry | Eurovia Atlantic Coast LLC | Washington County, ME | Crushed, broken stone | 2 | 0 |
| Hodgdon Quarry | Steelstone Industries I | Aroostook County, ME | Crushed, broken stone | 2 | 0 |
| Pit #2 | BHS, Inc | Kennebec County, ME | Crushed, broken stone | 2 | 0 |
| Hampden Quarry | Whitmore Contracting Inc. | Penobscot County, ME | Crushed, broken stone | 2 | 0 |
| Roadrunner Screen (M70601) | R J Grondin & Sons | Cumberland County, ME | Crushed, broken stone | 1 | 0 |
| Portable Crusher #1 | Shaw Brothers Construction, Inc. | Cumberland County, ME | Crushed, broken limestone | 1 | 0 |
| Mount Holly | Richard Mingo Construction, Inc. | Washington County, ME | Crushed, broken limestone | 1 | 0 |
| Haslam | Haslam Enterprises Inc | Hancock County, ME | Crushed, broken limestone | 1 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken stone | 30 | 55.6% |
| Crushed, broken limestone | 9 | 16.7% |
| Dimension stone | 6 | 11.1% |
| Dimension granite | 5 | 9.3% |
| Crushed, broken granite | 2 | 3.7% |
| Crushed, broken traprock | 2 | 3.7% |
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 | 71 | 13 | $11,725 | 1 |
| 2023 | 74 | 10 | $14,138 | 4 |
| 2024 | 143 | 32 | $27,645 | 7 |
| 2025 | 71 | 10 | $12,268 | 4 |
| 2026 | 68 | 12 | $18,295 | 0 |
Standards cited most at stone mines in Maine
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 50.30 | Reporting of accidents, injuries and illnesses | 40 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 34 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 24 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 23 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 23 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 20 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.23002 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 11 |
Injury and illness cases at stone mines in Maine
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 | 7 |
What the accident reports at stone mines in Maine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 5 |
| Slip or fall of person | 5 |
| Handtools (nonpowered) | 3 |
| Machinery | 2 |
| Other | 1 |
Equipment named in accident reports at stone mines in Maine
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 3 |
| Crusher | 2 |
| Shovel | 2 |
| Screen | 1 |
| Front-end loader | 1 |
| Trucks | 1 |
| Bulldozer | 1 |
| Ore haulage trucks - off highway trucks | 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.