Mining Incidents

On-Spec Sand & Gravel: 10 MSHA citations Metal/Non-Metal

Controlled by Charles Benevento
Concord, Merrimack County, NH  ·  Active
MSHA Mine ID: 2700497

On-Spec Sand & Gravel has $1K 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
1
Years on record
2018
Latest incident
Oct 2018
Compliance record
MSHA citations since 2017
10
citations
3
significant & substantial
$1,397
proposed penalties
$1,397
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2016
13
inspections on record
157
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: 157 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

On-Spec Sand & Gravel has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
10 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-05.
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.
30.0%
significant & substantial
10.0%
high negligence or reckless
30.0%
reasonably likely or greater
40.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 70.0% low, 20.0% moderate, 10.0% 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: 2026-05-05
0%
of limit-tested samples over the exposure limit
5
samples
2
limit-tested
Most sampled contaminants
  • Nuisance dust, respirable, <1% Qtz2
  • Quartz, respirable, >1% Qtz2
  • Respirable dust, <.1mg1
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-05-05 Quartz, respirable, >1% Qtz 0.15 Front-end Loader Operator
2026-05-05 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2022-03-23 Quartz, respirable, >1% Qtz 0.18 Front-end Loader Operator
2022-03-23 Nuisance dust, respirable, <1% Qtz 4.71 10 0.47 Front-end Loader Operator
2022-03-23 Nuisance dust, respirable, <1% Qtz 0.19 10 0.02 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. On-Spec Sand & Gravel, LLC 2015 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 2
2023 2
2022 2
2021 2
2020 2
2019 2
2018 2
2017 2
2016 2
2015 2
Source: MSHA quarterly employment and production, updated weekly.

On-Spec Sand & Gravel 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 1,121 2 0 1784.1
2026 Q1 670 0 0 0.0
2025 Q4 1,274 0 0 0.0
2025 Q3 1,248 0 0 0.0
2025 Q2 1,230 0 0 0.0
2025 Q1 1,130 0 0 0.0
2024 Q4 1,191 3 1 2518.9
2024 Q3 1,166 0 0 0.0
Show 35 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,203 0 0 0.0
2024 Q1 1,277 1 0 783.1
2023 Q4 1,161 0 0 0.0
2023 Q3 990 0 0 0.0
2023 Q2 1,321 0 0 0.0
2023 Q1 1,318 0 0 0.0
2022 Q4 1,241 0 0 0.0
2022 Q3 592 0 0 0.0
2022 Q2 842 0 0 0.0
2022 Q1 662 2 0 3021.1
2021 Q4 271 0 0 0.0
2021 Q3 732 1 1 1366.1
2021 Q2 1,216 0 0 0.0
2021 Q1 1,636 0 0 0.0
2020 Q4 1,198 0 0 0.0
2020 Q3 1,311 0 0 0.0
2020 Q2 987 0 0 0.0
2020 Q1 0 0 0
2019 Q4 1,207 0 0 0.0
2019 Q3 1,069 0 0 0.0
2019 Q2 1,168 0 0 0.0
2019 Q1 889 0 0 0.0
2018 Q4 1,062 0 0 0.0
2018 Q3 1,072 0 0 0.0
2018 Q2 918 0 0 0.0
2018 Q1 451 0 0 0.0
2017 Q4 1,163 0 0 0.0
2017 Q3 405 1 1 2469.1
2017 Q2 117 0 0 0.0
2017 Q1 141 0 0 0.0
2016 Q4 110 0 0 0.0
2016 Q3 151 0 0 0.0
2016 Q2 110 0 0 0.0
2016 Q1 107 0 0 0.0
2015 Q4 26 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2018 · 1 incident

October 10, 2018 NH · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
On-Spec Sand & Gravel, LLC · Struck against stationary object

Employee's hand struck gear box housing when wrench slipped off of a bolt that was being tightened. It was raining at the time of the injury.