Data / Mines / Maine / Cumberland County
Mines in Cumberland County, Maine: 47 open mines
MSHA lists 47 open mines in Cumberland County, Maine, run by 25 operators and employing 100 people. Since January 1, 2022 its inspectors issued 242 citations and orders there with $37,769 in proposed penalties, and operators reported 3 injury or illness cases. The operators with the most open mines are Shaw Brothers Construction, Inc.; R J Grondin & Sons; Scott Dugas Trucking & Excavating Inc. Data from MSHA, November 6, 2026.
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- Open mines
- 47
- Operators
- 25
- Employees
- 100
- Intermittent
- 34
- Active
- 10
- Temporarily Idled
- 3
- Mines run by individuals, counted and not listed
- 2
- Citations and orders since January 1, 2022
- 242
- Significant and substantial
- 35 (14.5%)
- Closure orders
- 5
- High negligence or reckless
- 14
- Proposed penalties
- $37,769
- Amount paid so far
- $35,648
- Inspections
- 254
- Inspector hours on site
- 1,076
- Citations per inspection
- 0.95 (all mines 2.30)
- Accident reports
- 3
- Injury and illness cases
- 3
- Fatalities
- 0
- Latest MSHA record
- November 5, 2026
Operators with the most open mines in Cumberland County, Maine
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 |
|---|---|---|---|---|---|
| Shaw Brothers Construction, Inc. | 11 | 19 | 60 | $8,785 | 0 |
| R J Grondin & Sons | 8 | 18 | 14 | $1,972 | 1 |
| Scott Dugas Trucking & Excavating Inc | 3 | 5 | 5 | $739 | 0 |
| Woods Excavating, LLC. | 2 | 3 | 10 | $1,492 | 1 |
| A H Grover Inc | 2 | 4 | 5 | $1,664 | 0 |
| Pike Industries | 2 | 3 | 4 | $580 | 0 |
| P & K Sand & Gravel Inc | 1 | 12 | 31 | $5,556 | 0 |
| Copp Excavation Inc | 1 | 3 | 19 | $2,787 | 0 |
| Leavitt Earthworks Co, Inc. | 1 | 3 | 13 | $1,962 | 0 |
| J Maxwell Trucking & Excavation Inc | 1 | 2 | 12 | $1,636 | 0 |
| C R Tandberg Inc | 1 | 3 | 9 | $1,443 | 0 |
| P. Y. Estes & Son, Inc. | 1 | 2 | 8 | $2,220 | 0 |
| R. Rolfe Corporation | 1 | 1 | 7 | $1,065 | 0 |
| R S Pidacks Inc | 1 | 3 | 6 | $866 | 0 |
| Storey Brothers, Inc. | 1 | 2 | 6 | $896 | 0 |
| Chase Excavating Inc | 1 | 2 | 5 | $755 | 0 |
| George Anderson & Sons, Inc. | 1 | 5 | 5 | $713 | 0 |
| Steve McGee Construction LLC | 1 | 1 | 5 | $717 | 0 |
| Gorham Sand & Gravel Inc | 1 | 1 | 3 | $449 | 0 |
| Shaw Earthworks, Inc. | 1 | 1 | 3 | $423 | 1 |
| Duayne Maschino & Son Sand & Gravel LLC | 1 | 2 | 1 | $147 | 0 |
| Ray Labbe & Sons Inc | 1 | 2 | 1 | $147 | 0 |
| Town of North Yarmouth, Maine | 1 | 0 | 0 | $0 | 0 |
Operators with the most citations in Cumberland County, Maine
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Shaw Brothers Construction, Inc. | 11 | 19 | 60 | $8,785 | 0 |
| P & K Sand & Gravel Inc | 1 | 12 | 31 | $5,556 | 0 |
| Copp Excavation Inc | 1 | 3 | 19 | $2,787 | 0 |
| R J Grondin & Sons | 8 | 18 | 14 | $1,972 | 1 |
| Leavitt Earthworks Co, Inc. | 1 | 3 | 13 | $1,962 | 0 |
| J Maxwell Trucking & Excavation Inc | 1 | 2 | 12 | $1,636 | 0 |
| Woods Excavating, LLC. | 2 | 3 | 10 | $1,492 | 1 |
| C R Tandberg Inc | 1 | 3 | 9 | $1,443 | 0 |
| P. Y. Estes & Son, Inc. | 1 | 2 | 8 | $2,220 | 0 |
| R. Rolfe Corporation | 1 | 1 | 7 | $1,065 | 0 |
| R S Pidacks Inc | 1 | 3 | 6 | $866 | 0 |
| Storey Brothers, Inc. | 1 | 2 | 6 | $896 | 0 |
| Scott Dugas Trucking & Excavating Inc | 3 | 5 | 5 | $739 | 0 |
| A H Grover Inc | 2 | 4 | 5 | $1,664 | 0 |
| Chase Excavating Inc | 1 | 2 | 5 | $755 | 0 |
| George Anderson & Sons, Inc. | 1 | 5 | 5 | $713 | 0 |
| Steve McGee Construction LLC | 1 | 1 | 5 | $717 | 0 |
| Pike Industries | 2 | 3 | 4 | $580 | 0 |
| Gorham Sand & Gravel Inc | 1 | 1 | 3 | $449 | 0 |
| Shaw Earthworks, Inc. | 1 | 1 | 3 | $423 | 1 |
| Duayne Maschino & Son Sand & Gravel LLC | 1 | 2 | 1 | $147 | 0 |
| Ray Labbe & Sons Inc | 1 | 2 | 1 | $147 | 0 |
| Town of North Yarmouth, Maine | 1 | 0 | 0 | $0 | 0 |
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 |
|---|---|---|---|---|---|
| Heath Quarry | P & K Sand & Gravel Inc | Cumberland County, ME | Crushed, broken stone | 12 | 31 |
| 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 |
| Portable Plant | Leavitt Earthworks Co, Inc. | Cumberland County, ME | Construction sand and gravel | 3 | 13 |
| Maxwell Pit | J Maxwell Trucking & Excavation Inc | Cumberland County, ME | Construction sand and gravel | 2 | 12 |
| Gray Pit | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 11 |
| 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 |
| C-Pit Quarry | P. Y. Estes & Son, Inc. | Cumberland County, ME | Construction sand and gravel | 2 | 8 |
| Libby Pit | R. Rolfe Corporation | Cumberland County, ME | Construction sand and gravel | 1 | 7 |
| Portable Crusher #2 | R S Pidacks Inc | Cumberland County, ME | Construction sand and gravel | 3 | 6 |
| Storey Brothers, Inc. | Storey Brothers, Inc. | Cumberland County, ME | Construction sand and gravel | 2 | 6 |
| Baxter Pit | Woods Excavating, LLC. | Cumberland County, ME | Construction sand and gravel | 2 | 6 |
| Lokotrack LT120 | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 6 |
| Burnell Pit | George Anderson & Sons, Inc. | Cumberland County, ME | Construction sand and gravel | 5 | 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 |
| Norberg Portable Screen | Steve McGee Construction LLC | Cumberland County, ME | Construction sand and gravel | 1 | 5 |
| Kolberg/Portec Screen #445 | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 2 | 4 |
| Premier Trak 400X | Scott Dugas Trucking & Excavating Inc | Cumberland County, ME | Construction sand and gravel | 2 | 4 |
| Lokotrack 106 Jaw Crusher #1 | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 4 |
| Woods Mobile Crushing | Woods Excavating, LLC. | Cumberland County, ME | Construction sand and gravel | 1 | 4 |
| Rock Ridge Quarry | A H Grover Inc | Cumberland County, ME | Crushed, broken stone | 2 | 3 |
| Busque Quarry | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 3 |
| Watchic Pit | Shaw Earthworks, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 3 |
| Portable Unit # 7 | Gorham Sand & Gravel Inc | Cumberland County, ME | Construction sand and gravel | 1 | 3 |
| Terex Finlay 883+ Screen Plant | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 3 |
| A H Grover Inc / Portable Plant | A H Grover Inc | Cumberland County, ME | Construction sand and gravel | 2 | 2 |
| Metso Jaw (M72214)& Cone Crusher (M72208 | R J Grondin & Sons | Cumberland County, ME | Construction sand and gravel | 2 | 2 |
| Powerscreen Chieftain 1700X | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 2 | 2 |
| Varney Mill C641 | Pike Industries | Cumberland County, ME | Construction sand and gravel | 2 | 2 |
| Nordberg Screen (M1626) | R J Grondin & Sons | Cumberland County, ME | Construction sand and gravel | 2 | 2 |
| Spring St Quarry C606 | Pike Industries | Cumberland County, ME | Crushed, broken stone | 1 | 2 |
| Finlay 863+ Screen Plant | Shaw Brothers Construction, Inc. | Cumberland County, ME | Construction sand and gravel | 1 | 2 |
| Lippmann Screen | R J Grondin & Sons | Cumberland County, ME | Construction sand and gravel | 3 | 1 |
| Brunswick Gravel Pit | Ray Labbe & Sons Inc | Cumberland County, ME | Construction sand and gravel | 2 | 1 |
| Duayne Maschino & Son Sand & Gravel LLC | Duayne Maschino & Son Sand & Gravel LLC | Cumberland County, ME | Construction sand and gravel | 2 | 1 |
| Extec Turbo Screener | Scott Dugas Trucking & Excavating Inc | Cumberland County, ME | Construction sand and gravel | 1 | 1 |
| Pioneer (M71503) | R J Grondin & Sons | Cumberland County, ME | Construction sand and gravel | 2 | 0 |
| Pegson Premier Track Crusher 44X26 | Scott Dugas Trucking & Excavating Inc | Cumberland County, ME | Crushed, broken stone | 2 | 0 |
| Power Screen (M1561) | R J Grondin & Sons | Cumberland County, ME | Construction sand and gravel | 2 | 0 |
| Nordberg Screen (M71801) | R J Grondin & Sons | Cumberland County, ME | Construction sand and gravel | 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 |
| Town Pit | Town of North Yarmouth, Maine | Cumberland County, ME | Construction sand and gravel | 0 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 38 | 80.9% |
| Crushed, broken stone | 7 | 14.9% |
| Crushed, broken traprock | 1 | 2.1% |
| Crushed, broken limestone | 1 | 2.1% |
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 | 32 | 5 | $4,299 | 0 |
| 2023 | 53 | 3 | $7,824 | 1 |
| 2024 | 86 | 21 | $15,149 | 1 |
| 2025 | 30 | 0 | $4,606 | 0 |
| 2026 | 41 | 6 | $5,891 | 1 |
Standards cited most at mines in Cumberland County, 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 | 34 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 22 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 22 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 17 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.23002 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 7 |
| 30 CFR 47.41 | Hazard communication | 6 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.18010 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 5 |
Injury and illness cases at mines in Cumberland County, Maine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
| No lost time, or an occupational illness | 2 |
What the accident reports at mines in Cumberland County, Maine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 2 |
| Stepping or kneeling on object | 1 |
Equipment named in accident reports at mines in Cumberland County, Maine
| Equipment | Reports |
|---|---|
| Front-end loader | 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.