Mines in Maine: 370 open mines and MSHA citations
MSHA lists 370 open mines in Maine, run by 197 operators and employing 988 people. Since January 1, 2022 its inspectors issued 2,505 citations and orders there with $642,749 in proposed penalties, and operators reported 57 injury or illness cases. The operators with the most open mines are Sargent Corporation; Shaw Brothers Construction, Inc.; Pike Industries. Data from MSHA, November 6, 2026.
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- Open mines
- 370
- Operators
- 197
- Employees
- 988
- Intermittent
- 272
- Active
- 57
- Temporarily Idled
- 38
- New Mine
- 3
- Mines run by individuals, counted and not listed
- 38
- Citations and orders since January 1, 2022
- 2,505
- Significant and substantial
- 425 (17.0%)
- Closure orders
- 115
- High negligence or reckless
- 157
- Proposed penalties
- $642,749
- Amount paid so far
- $564,668
- Inspections
- 1,941
- Inspector hours on site
- 9,106
- Citations per inspection
- 1.29 (all mines 2.30)
- Accident reports
- 57
- Injury and illness cases
- 57
- Fatalities
- 0
- Latest MSHA record
- November 5, 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 |
|---|---|---|---|---|---|
| Christian Hill Quarry | Auburn Asphalt, LLC | Androscoggin County, ME | Construction sand and gravel | 18 | 56 |
| Mcgee Construction Pit #2 | Steven a McGee Construction LLC | Kennebec County, ME | Construction sand and gravel | 8 | 39 |
| Portable Pioneer Plant | Ferraiolo Construction Company Inc | Knox County, ME | Crushed, broken limestone | 4 | 37 |
| Hard Rock Quarry | Peter Overlock Inc | Knox County, ME | Construction sand and gravel | 3 | 37 |
| Ross Hill | Len Poulin Inc. | Somerset County, ME | Construction sand and gravel | 3 | 36 |
| B & C Sand and Gravel, Inc. | B & C Sand and Gravel, Inc. | Penobscot County, ME | Construction sand and gravel | 2 | 36 |
| Portable Ac Crusher | Harold Mac Quinn Inc | Hancock County, ME | Construction sand and gravel | 4 | 35 |
| Heath Quarry | P & K Sand & Gravel Inc | Cumberland County, ME | Crushed, broken stone | 12 | 31 |
| Ellsworth Portable Plant | R.F. Jordan & Sons Inc. | Hancock County, ME | Construction sand and gravel | 3 | 30 |
| Quarry-1 | Hagar Enterprises Inc | Lincoln County, ME | Construction sand and gravel | 3 | 29 |
| North Jay White Quarry | Swensen Granite Company LLC | Franklin County, ME | Construction sand and gravel | 5 | 28 |
| Topsham Pit & Mill | Crooker Construction, LLC | Sagadahoc County, ME | Crushed, broken granite | 21 | 26 |
| Winterport Pit | Hughes Brothers Incorp | Waldo County, ME | Construction sand and gravel | 4 | 25 |
| Bedrock Quarry | Trombley Industries Inc | Aroostook County, ME | Construction sand and gravel | 3 | 25 |
| Etna Quarry | B & C Sand and Gravel, Inc. | Penobscot County, ME | Crushed, broken stone | 2 | 25 |
| Prospect Crushing Plant | General Contractor Vaughn D. Thibodeau II, Inc. | Waldo County, ME | Construction sand and gravel | 3 | 24 |
| Portalbe Plant S/N 505M2584 | STS Construction | York County, ME | Construction sand and gravel | 1 | 24 |
| 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 |
| Round Stone | A&m Redimix Inc | Waldo County, ME | Construction sand and gravel | 2 | 22 |
| Pioneer 3055 #810005 | Sargent Corporation | Penobscot County, ME | Crushed, broken stone | 8 | 21 |
| Dorr Pit and Mill | County Concrete & Construction CO Inc | Washington County, ME | Construction sand and gravel | 3 | 21 |
| Telsmith Crusher Plant | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 5 | 20 |
| Copp Excavation, Inc | Copp Excavation Inc | Cumberland County, ME | Construction sand and gravel | 3 | 19 |
| DuBois Livestock Inc. | DuBois Livestock Inc. | York County, ME | Construction sand and gravel | 3 | 18 |
| Doug Gott & Sons Inc Portable SC | Doug Gott & Sons Inc | Hancock County, ME | Construction sand and gravel | 2 | 18 |
| Picard Enterprises | Picard Enterprises | York County, ME | Construction sand and gravel | 2 | 18 |
| Brown Quarry | Maine Rock and Recycling LLC | York County, ME | Construction sand and gravel | 2 | 18 |
| Wells Quarry C624 | Pike Industries | York County, ME | Crushed, broken granite | 10 | 17 |
| Garland Road Pit | Holyoke Construction, Inc. | Hancock County, ME | Construction sand and gravel | 1 | 17 |
| Carroll Materials,LLC. | Carroll Materials, LLC. | York County, ME | Construction sand and gravel | 14 | 16 |
| Swasey Excavation | Steve Swasey, Inc. | Oxford County, ME | Construction sand and gravel | 5 | 16 |
| Portable Plant | M.L. Lloyd & Sons | Somerset County, ME | Construction sand and gravel | 3 | 16 |
| Portable Plant | Ha Higgins and Son Inc | Penobscot County, ME | Construction sand and gravel | 2 | 16 |
| Affordable Mine | Affordable Well Drilling Inc. | Androscoggin County, ME | Construction sand and gravel | 2 | 16 |
| Jci Jaw Crusher-Wheels | Jig Aggregates | Androscoggin County, ME | Crushed, broken stone | 2 | 15 |
| Goose Pond Road Sand & Gravel | Northeast Redi Mix LLC | York County, ME | Construction sand and gravel | 1 | 15 |
| Pease Pit | Jake Barbour, Inc. | Knox County, ME | Construction sand and gravel | 0 | 15 |
| Quarry 1 | Mattingly Products Company Inc | Somerset County, ME | Crushed, broken limestone | 8 | 14 |
| Freedom Quarry | Douglas W. Jones, Inc. | Oxford County, ME | Construction sand and gravel | 3 | 14 |
| Auburn Asphalt- Litchfield | Auburn Asphalt, LLC | Kennebec County, ME | Construction sand and gravel | 2 | 14 |
| Extec Plant | Nitram Excavation | Kennebec County, ME | Construction sand and gravel | 1 | 14 |
| Belfast Pit and Mill | State Sand & Gravel Inc | Waldo County, ME | Construction sand and gravel | 12 | 13 |
| Portable Plant | Arc Aggregates LLC | Knox County, ME | Construction sand and gravel | 4 | 13 |
| Albany Pit | Drew Corporation | Oxford County, ME | Crushed, broken stone | 4 | 13 |
| A-Pit | Seth McCoys Trucking & Excavating, LLC | York County, ME | Construction sand and gravel | 3 | 13 |
| Portable Plant | Leavitt Earthworks Co, Inc. | Cumberland County, ME | Construction sand and gravel | 3 | 13 |
| Robert's Rd Quarry | Card's Excavation & Tractor Work, Inc | Sagadahoc County, ME | Construction sand and gravel | 44 | 12 |
| Pike Industries | Pike Industries | York County, ME | Construction sand and gravel | 10 | 12 |
| 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 |
| Maxwell Pit | J Maxwell Trucking & Excavation Inc | Cumberland County, ME | Construction sand and gravel | 2 | 12 |
| Brex Mobile Plant | Brex Corporation | York County, ME | Construction sand and gravel | 2 | 12 |
| Ripley Pit | Jaiden Landscaping Inc. | Androscoggin County, ME | Construction sand and gravel | 2 | 12 |
| Sangerville Portable | Haley's Inc | Piscataquis County, ME | Crushed, broken stone | 1 | 12 |
| The Rawson 4832 | The Poland Corporation | Oxford County, ME | Construction sand and gravel | 1 | 12 |
| St Laurent Pit | Jig Aggregates | Androscoggin County, ME | Construction sand and gravel | 9 | 11 |
| Reny Rock | N a Reny Construction Co Inc | Lincoln County, ME | Construction sand and gravel | 3 | 11 |
| Taylor Pit | FKM Construction LLC | Aroostook County, ME | Construction sand and gravel | 3 | 11 |
| Flaggy Meadow Pit | Peters Construction Inc | York County, ME | Construction sand and gravel | 2 | 11 |
| Gray Pit | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 11 |
| Portable Screen Plant | Town of Fairfield | Somerset County, ME | Construction sand and gravel | 1 | 11 |
| Thorndike & Sons Inc. | Thorndike & Sons Inc. | Franklin County, ME | Construction sand and gravel | 0 | 11 |
| B Pit | Dancause Construction Co. | York County, ME | Sand, common | 5 | 10 |
| Sand & Gravel Pit | Gagne & Son Concrete Blocks, LLC | Kennebec County, ME | Construction sand and gravel | 4 | 10 |
| Gracelawn | Jig Aggregates | Androscoggin County, ME | Construction sand and gravel | 4 | 10 |
| Hill Gravel | Hill Gravel | York County, ME | Dimension stone | 2 | 10 |
| Quirion, Pioneer 2650 Track Jaw Crusher | Quirion | Androscoggin County, ME | Construction sand and gravel | 2 | 10 |
| Rangeley Sand & Gravel | M + H Logging LLC | Franklin County, ME | Construction sand and gravel | 1 | 10 |
| Round Stone-2 | A&m Redimix Inc | Waldo County, ME | Construction sand and gravel | 1 | 10 |
| West Bethel Pit | Coleman Concrete Inc. | Oxford County, ME | Construction sand and gravel | 0 | 10 |
| Astec GT205 Screen | Elliott Jordan & Son | Hancock County, ME | Construction sand and gravel | 10 | 9 |
| Brandy Brook Quarry | R J Grondin & Sons | Cumberland County, ME | Crushed, broken stone | 4 | 9 |
| River Road Pit | C R Tandberg Inc | Cumberland County, ME | Construction sand and gravel | 3 | 9 |
| K&W Aggregates LLC | K&W Aggregates LLC | Oxford County, ME | Construction sand and gravel | 3 | 9 |
| Sand Pond Road Pit | Northeastern Sand & Gravel | York County, ME | Construction sand and gravel | 2 | 9 |
| Portable Crusher #1 | R S Pidacks Inc | Androscoggin County, ME | Construction sand and gravel | 2 | 9 |
| Lee's Readi Mix | Emery Lee & Sons Inc | Penobscot County, ME | Construction sand and gravel | 2 | 9 |
| Jci 2650 Portable Crusher | Steve McGee Construction LLC | Lincoln County, ME | Construction sand and gravel | 2 | 9 |
| Portable Plant -Pegason Jaw | R Pepin & Sons Inc | York County, ME | Construction sand and gravel | 2 | 9 |
| K R Youland & Son LLC | K R Youland & Son LLC | Androscoggin County, ME | Construction sand and gravel | 2 | 9 |
| Cushing Pit | Meklin Excavation | Knox County, ME | Construction sand and gravel | 2 | 9 |
| A&b Crushing & Screening | A&b Crushing & Screening | Oxford County, ME | Construction sand and gravel | 2 | 9 |
| Mcm-Ashp | Manter Construction of Maine, Inc. | Kennebec County, ME | Construction sand and gravel | 2 | 9 |
| JRP Aggregates | R.a. Paradis and Son Inc. | Somerset County, ME | Construction sand and gravel | 2 | 9 |
| Washington Pit #2 | Jake Barbour, Inc. | Knox County, ME | Construction sand and gravel | 1 | 9 |
| Mills Excavation Inc. | Mills Excavation, Inc. | Knox County, ME | Crushed, broken stone | 1 | 9 |
| Portable Plant | Crooker Construction, LLC | Sagadahoc County, ME | Construction sand and gravel | 0 | 9 |
| Dayton Pit & Mill | Dayton Sand & Gravel Co Inc | York County, ME | Construction sand and gravel | 12 | 8 |
| Millennium Granite | Millennium Granite LLC | York County, ME | Dimension granite | 5 | 8 |
| Gravel Pit-Thornton | Thornton Construction Inc | Penobscot County, ME | Construction sand and gravel | 4 | 8 |
| Bass Harbor Portable Plant | Doug Gott & Sons Inc | Hancock County, ME | Construction sand and gravel | 4 | 8 |
| Portable Crushing Operation | Superior Crushing, Inc. | Penobscot County, ME | Construction sand and gravel | 3 | 8 |
| Monarch Mountain Acton | Monarch Mountain Minerals & Aggregates, LLC | York County, ME | Construction sand and gravel | 3 | 8 |
| Sabattus Pit And Plant | Crooker Construction, LLC | Androscoggin County, ME | Construction sand and gravel | 2 | 8 |
| Portable Plant | Foglio Inc | York County, ME | Construction sand and gravel | 2 | 8 |
| Savage Contracting Inc | Savage Contracting Inc | Oxford County, ME | Construction sand and gravel | 2 | 8 |
| C-Pit Quarry | P. Y. Estes & Son, Inc. | Cumberland County, ME | Construction sand and gravel | 2 | 8 |
| Mount Mica | Coromoto Minerals LLC | Oxford County, ME | Gemstones | 2 | 8 |
Counties
| County | Open mines |
|---|---|
| York County | 52 |
| Cumberland County | 47 |
| Penobscot County | 40 |
| Aroostook County | 31 |
| Hancock County | 29 |
| Kennebec County | 24 |
| Androscoggin County | 24 |
| Knox County | 19 |
| Oxford County | 18 |
| Waldo County | 17 |
| Washington County | 16 |
| Somerset County | 16 |
| Franklin County | 15 |
| Sagadahoc County | 9 |
| Lincoln County | 7 |
| Piscataquis County | 6 |
Mines by kind
| Kind | Open mines |
|---|---|
| Sand and gravel | 304 |
| Stone | 54 |
| Nonmetal | 9 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 298 | 80.5% |
| Crushed, broken stone | 30 | 8.1% |
| Crushed, broken limestone | 9 | 2.4% |
| Dimension stone | 6 | 1.6% |
| Sand, common | 6 | 1.6% |
| Dimension granite | 5 | 1.4% |
| Common shale | 5 | 1.4% |
| Gemstones | 3 | 0.8% |
| Crushed, broken granite | 2 | 0.5% |
| Crushed, broken traprock | 2 | 0.5% |
| Sand, industrial | 1 | 0.3% |
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 | 404 | 62 | $63,887 | 6 |
| 2023 | 570 | 76 | $106,007 | 15 |
| 2024 | 668 | 134 | $268,953 | 15 |
| 2025 | 438 | 79 | $102,533 | 10 |
| 2026 | 425 | 74 | $101,369 | 11 |
Standards cited most at 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 | 360 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 230 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 161 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 126 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 119 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 119 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 99 |
| 30 CFR 56.23002 | Surface metal and nonmetal mines | 88 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 85 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 80 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 68 |
| 30 CFR 56.18010 | Surface metal and nonmetal mines | 54 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 50 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 45 |
| 30 CFR 47.41 | Hazard communication | 39 |
Injury and illness cases at mines in Maine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 2 |
| Days away from work or restricted activity | 32 |
| No lost time, or an occupational illness | 23 |
What the accident reports at mines in Maine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 21 |
| Slip or fall of person | 11 |
| Machinery | 9 |
| Handtools (nonpowered) | 7 |
| Powered haulage | 4 |
| Other | 2 |
| Disorders (repeated trauma) | 1 |
| Exploding vessels under pressure | 1 |
| Stepping or kneeling on object | 1 |
Equipment named in accident reports at mines in Maine
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 7 |
| Shovel | 6 |
| Front-end loader | 6 |
| Crusher | 4 |
| Hand tools (powered) | 3 |
| Ore haulage trucks - off highway trucks | 3 |
| Trucks | 2 |
| Dimension stone machinery | 2 |
| Screen | 1 |
| Bulldozer | 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.