Mining Incidents

Portable Roadrunner: 23 MSHA citations Metal/Non-Metal

Graves Trucking Inc. · Surface
Controlled by Timothy S Graves
Walpole, Cheshire County, NH  ·  Intermittent
MSHA Mine ID: 2700445

Portable Roadrunner has $3K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2010
23
citations
5
significant & substantial
$2,915
proposed penalties
$2,915
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2010
18
inspections on record
139
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: 139 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable Roadrunner has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
23 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2019-08-10.
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.
21.7%
significant & substantial
0.0%
high negligence or reckless
21.7%
reasonably likely or greater
73.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 17.4% low, 82.6% moderate, 0.0% 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: 2023-11-14
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-11-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-10-17 Respirable dust, <.1mg 0 Front-end Loader 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. Graves Trucking Inc. 2010 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 3
2025 3
2024 3
2023 3
2022 3
2021 3
2020 3
2019 3
2018 3
2017 3
2016 4
2015 2
2014 3
2013 2
2012 2
2011 2
2010 2
Source: MSHA quarterly employment and production, updated weekly.

Portable Roadrunner sits in Cheshire 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.
Cheshire County, New Hampshire · Population 76,945
0.1%
Mining share of county employment
$81,001
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 37 0 0 0.0
2026 Q1 31 0 0 0.0
2025 Q4 56 0 0 0.0
2025 Q3 82 0 0 0.0
2025 Q2 87 0 0 0.0
2025 Q1 3 0 0 0.0
2024 Q4 48 0 0 0.0
2024 Q3 88 0 0 0.0
Show 55 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 68 0 0 0.0
2024 Q1 26 0 0 0.0
2023 Q4 53 0 0 0.0
2023 Q3 113 0 0 0.0
2023 Q2 86 0 0 0.0
2023 Q1 1 0 0 0.0
2022 Q4 66 0 0 0.0
2022 Q3 27 0 0 0.0
2022 Q2 67 0 0 0.0
2022 Q1 26 0 0 0.0
2021 Q4 73 0 0 0.0
2021 Q3 86 0 0 0.0
2021 Q2 90 0 0 0.0
2021 Q1 13 0 0 0.0
2020 Q4 58 0 0 0.0
2020 Q3 35 0 0 0.0
2020 Q2 42 0 0 0.0
2020 Q1 1 0 0 0.0
2019 Q4 26 0 0 0.0
2019 Q3 63 2 0 31746.0
2019 Q2 79 0 0 0.0
2019 Q1 1 0 0 0.0
2018 Q4 45 0 0 0.0
2018 Q3 118 1 0 8474.6
2018 Q2 89 0 0 0.0
2018 Q1 11 0 0 0.0
2017 Q4 15 0 0 0.0
2017 Q3 120 0 0 0.0
2017 Q2 31 2 0 64516.1
2017 Q1 3 0 0 0.0
2016 Q4 44 0 0 0.0
2016 Q3 99 2 0 20202.0
2016 Q2 100 0 0 0.0
2016 Q1 33 0 0 0.0
2015 Q4 1 0 0 0.0
2015 Q3 82 0 0 0.0
2015 Q2 96 0 0 0.0
2015 Q1 75 0 0 0.0
2014 Q4 146 0 0 0.0
2014 Q3 222 0 0 0.0
2014 Q2 18 0 0 0.0
2014 Q1 80 0 0 0.0
2013 Q4 49 6 2 122449.0
2013 Q3 26 0 0 0.0
2013 Q2 35 0 0 0.0
2013 Q1 2 0 0 0.0
2012 Q4 83 2 1 24096.4
2012 Q3 39 0 0 0.0
2012 Q2 124 1 0 8064.5
2012 Q1 0 0 0
2011 Q4 82 0 0 0.0
2011 Q3 27 0 0 0.0
2011 Q2 84 0 0 0.0
2011 Q1 0 0 0
2010 Q4 98 7 2 71428.6

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.