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Gravel Pit-Thornton Metal/Non-Metal

Thornton Construction Inc · Surface

Controlled by Mike J Thornton

GREENBUSH, Penobscot County, ME · Intermittent

MSHA Mine ID: 1700760

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Email me when a new MSHA incident is filed at Gravel Pit-Thornton.

Fatalities: 0
Total incidents: 1
Years on record: 2009
Latest incident: Aug 2009

Compliance record

MSHA citations since 2004

citations

significant & substantial

$20,643

proposed penalties

$20,643

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	Per 1M hrs
2025 Q4	781	0	0.0
2025 Q3	756	2	2645.5
2025 Q2	1,123	0	0.0
2025 Q1	119	0	0.0
2024 Q4	463	0	0.0
2024 Q3	1,430	0	0.0
2024 Q2	61	0	0.0
2024 Q1	243	0	0.0

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

Reportable incidents

1 on file

2009 · 1 incident

August 26, 2009 ME · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS

Thornton Construction Inc · Over-exertion (Not Elsewhere Classified)

2 ee were conducting normal maintenance, replacing screens, greasing and servicing which includes a lot of manual labor. They did nothing outside of the normal practices. These activities was too strenuous for one and he was advised to take time off in order to rest his back muscles.