Mining Incidents

METSO LT120: 29 MSHA citations Metal/Non-Metal

Controlled by Frank L Merrill
PEMBROKE, Merrimack County, NH  ·  Active
MSHA Mine ID: 2700424

METSO LT120 has $5K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
4
Years on record
2009–2023
Latest incident
Oct 2023
Compliance record
MSHA citations since 2007
29
citations
4
significant & substantial
$4,537
proposed penalties
$4,537
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
29
inspections on record
269
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 269 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

METSO LT120 has $5K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
29 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-06.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
13.8%
significant & substantial
10.3%
high negligence or reckless
13.8%
reasonably likely or greater
41.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 17.2% low, 72.4% moderate, 10.3% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2026-05-07
6
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg6
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-05-07 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2026-05-07 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2026-05-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-04-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-02-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-02-03 Respirable dust, <.1mg 0 Backhoe Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
  1. F L Merrill Construction Incorporated 2007 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 4
2023 4
2022 4
2021 4
2020 3
2019 3
2018 3
2017 4
2016 3
2015 3
2014 4
2013 2
2012 1
2011 3
2010 2
2009 3
2008 4
2007 3
Source: MSHA quarterly employment and production, updated weekly.

METSO LT120 sits in Merrimack County, New Hampshire, where the Census mining category is 0.1% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Merrimack County, New Hampshire · Population 155,018
0.1%
Mining share of county employment
$93,944
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2026 Q2 1,528 2 0 1308.9
2026 Q1 550 1 0 1818.2
2025 Q4 1,583 0 0 0.0
2025 Q3 1,647 1 0 607.2
2025 Q2 567 0 0 0.0
2025 Q1 1,337 0 0 0.0
2024 Q4 2,137 0 0 0.0
2024 Q3 940 0 0 0.0
Show 68 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,207 0 0 0.0
2024 Q1 1,894 0 0 0.0
2023 Q4 443 3 0 6772.0
2023 Q3 1,904 0 0 0.0
2023 Q2 1,662 5 2 3008.4
2023 Q1 2,373 0 0 0.0
2022 Q4 789 0 0 0.0
2022 Q3 822 0 0 0.0
2022 Q2 2,174 2 0 920.0
2022 Q1 492 0 0 0.0
2021 Q4 501 0 0 0.0
2021 Q3 1,613 0 0 0.0
2021 Q2 2,896 1 0 345.3
2021 Q1 1,438 0 0 0.0
2020 Q4 1,907 0 0 0.0
2020 Q3 980 0 0 0.0
2020 Q2 1,420 2 0 1408.5
2020 Q1 894 0 0 0.0
2019 Q4 2,014 0 0 0.0
2019 Q3 2,178 0 0 0.0
2019 Q2 1,739 1 0 575.0
2019 Q1 1,139 0 0 0.0
2018 Q4 777 0 0 0.0
2018 Q3 804 0 0 0.0
2018 Q2 1,732 0 0 0.0
2018 Q1 746 0 0 0.0
2017 Q4 1,565 0 0 0.0
2017 Q3 1,306 1 1 765.7
2017 Q2 2,416 0 0 0.0
2017 Q1 800 0 0 0.0
2016 Q4 1,894 0 0 0.0
2016 Q3 1,136 0 0 0.0
2016 Q2 2,107 0 0 0.0
2016 Q1 779 0 0 0.0
2015 Q4 1,251 0 0 0.0
2015 Q3 1,398 2 0 1430.6
2015 Q2 1,620 0 0 0.0
2015 Q1 528 0 0 0.0
2014 Q4 1,237 0 0 0.0
2014 Q3 1,709 1 0 585.1
2014 Q2 2,457 0 0 0.0
2014 Q1 2,656 0 0 0.0
2013 Q4 3,131 0 0 0.0
2013 Q3 7 0 0 0.0
2013 Q2 0 0 0
2013 Q1 0 0 0
2012 Q4 0 0 0
2012 Q3 0 0 0
2012 Q2 847 0 0 0.0
2012 Q1 0 0 0
2011 Q4 321 0 0 0.0
2011 Q3 585 0 0 0.0
2011 Q2 382 0 0 0.0
2011 Q1 318 0 0 0.0
2010 Q4 733 0 0 0.0
2010 Q3 798 0 0 0.0
2010 Q2 488 0 0 0.0
2010 Q1 0 0 0
2009 Q4 893 0 0 0.0
2009 Q3 92 0 0 0.0
2009 Q2 1,624 0 0 0.0
2009 Q1 355 1 0 2816.9
2008 Q4 1,565 0 0 0.0
2008 Q3 1,016 0 0 0.0
2008 Q2 1,746 1 0 572.7
2008 Q1 877 0 0 0.0
2007 Q4 1,097 0 0 0.0
2007 Q3 686 5 1 7288.6
No fatalities recorded at this mine.

Reportable incidents

4 on file

2023 · 1 incident

October 6, 2023 NH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
F L Merrill Construction Incorporated · Struck against stationary object

Employee was struck by a rock EE was trying to dislodge, fell off the crusher. Suffered cuts and bruises. Update: EE informed company that EE did not fall off the crusher, EE opted to jump off the crusher. As a result of EE jumping off, EE sustained abrasions and contusions.

2018 · 1 incident

September 6, 2018 NH · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (PHYSICAL AGENTS)

HEATWAVE - EMPLOYEE WAS SHOWING SIGNS OF HEAT EXHAUSTION / HEAT STROKE. WENT TO TRY AND SIT IN A SHADED AREA, PASSED OUT, LANDING ON FACE. FACIAL LACERATIONS, CUTS AND BRUISES.

2014 · 1 incident

March 28, 2014 NH · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
F L Merrill Construction Incorporated · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS WORKING ON A BROKEN HYDRAULIC LINE. HE WAS ATTEMPTING TO STAND FROM A SQUATTING POSITION WHEN HE SLIPPED ON THE HYDRAULIC OIL, TWISTING HIS ANKLE.

2009 · 1 incident

March 30, 2009 NH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
F L Merrill Construction Incorporated · Caught in, under or between (Not Elsewhere Classified)

EE WAS PERFORMING MAINTENANCE ON A MACHINE WHEN HE CAUGHT HIS RIGHT PINKY FINGER, CAUSING A HAIRLINE FRACTURE AND SMALL LACERATION.