Mining Incidents

Madbury Pit C629: 32 MSHA citations Metal/Non-Metal

Pike Industries Inc · Surface
Controlled by CRH PLC
Madbury, Strafford County, NH  ·  Intermittent
MSHA Mine ID: 2700128

Madbury Pit C629 has $8K 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
3
Years on record
1991–2025
Latest incident
Mar 2025
Compliance record
MSHA citations since 2000
32
citations
5
significant & substantial
$7,669
proposed penalties
$7,669
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
36
inspections on record
387
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: 387 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Madbury Pit C629 has $8K 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.
$8K
proposed penalties
$8K
current assessed
$8K
paid to date
$0
outstanding
32 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-03-28.
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.
15.6%
significant & substantial
9.4%
high negligence or reckless
18.8%
reasonably likely or greater
50.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 34.4% low, 56.2% moderate, 9.4% 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: 2024-04-10
0%
of limit-tested samples over the exposure limit
8
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg6
  • Quartz, respirable, >1% Qtz2
Show the individual readings (8)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-04-10 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-12-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-12-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-04-21 Respirable dust, <.1mg 0 Backhoe Operator
2016-04-21 Quartz, respirable, >1% Qtz 0.37 1.04 0.36 Front-end Loader Operator
2016-04-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-04-13 Respirable dust, <.1mg 0 Scale Man
2010-04-13 Quartz, respirable, >1% Qtz 0.14 0.98 0.14 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. John Iafolla Company Inc 1950 to 1996
  2. Tilcon Maine Inc 1996 to 1996
  3. Pike Industries Inc 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 5
2024 4
2023 5
2022 5
2021 7
2020 6
2019 6
2018 7
2017 7
2016 9
2015 6
2014 6
2013 6
2012 6
2011 7
2010 5
2009 4
2008 5
2007 5
2006 4
2005 4
2004 4
2003 3
2002 5
2001 4
2000 7
Source: MSHA quarterly employment and production, updated weekly.

Madbury Pit C629 sits in Strafford 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.
Strafford County, New Hampshire · Population 131,743
0.1%
Mining share of county employment
$86,564
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 2,234 0 0 0.0
2026 Q1 901 0 0 0.0
2025 Q4 2,023 0 0 0.0
2025 Q3 2,819 0 0 0.0
2025 Q2 2,843 0 0 0.0
2025 Q1 1,173 2 0 1705.0
2024 Q4 1,826 0 0 0.0
2024 Q3 3,222 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,269 1 0 440.7
2024 Q1 1,035 0 0 0.0
2023 Q4 2,017 0 0 0.0
2023 Q3 2,386 0 0 0.0
2023 Q2 2,348 0 0 0.0
2023 Q1 714 0 0 0.0
2022 Q4 1,453 1 0 688.2
2022 Q3 2,407 0 0 0.0
2022 Q2 2,963 0 0 0.0
2022 Q1 1,414 1 0 707.2
2021 Q4 2,692 0 0 0.0
2021 Q3 3,743 0 0 0.0
2021 Q2 3,292 0 0 0.0
2021 Q1 2,186 0 0 0.0
2020 Q4 2,645 1 0 378.1
2020 Q3 2,589 2 0 772.5
2020 Q2 2,758 0 0 0.0
2020 Q1 1,705 0 0 0.0
2019 Q4 2,919 0 0 0.0
2019 Q3 3,056 0 0 0.0
2019 Q2 3,021 0 0 0.0
2019 Q1 1,510 0 0 0.0
2018 Q4 2,823 0 0 0.0
2018 Q3 2,744 0 0 0.0
2018 Q2 2,498 0 0 0.0
2018 Q1 1,644 0 0 0.0
2017 Q4 2,128 0 0 0.0
2017 Q3 3,490 0 0 0.0
2017 Q2 2,900 0 0 0.0
2017 Q1 1,713 0 0 0.0
2016 Q4 3,526 2 0 567.2
2016 Q3 3,759 0 0 0.0
2016 Q2 3,379 1 0 295.9
2016 Q1 2,168 0 0 0.0
2015 Q4 3,226 0 0 0.0
2015 Q3 3,601 0 0 0.0
2015 Q2 2,790 0 0 0.0
2015 Q1 1,444 0 0 0.0
2014 Q4 3,065 0 0 0.0
2014 Q3 3,466 3 0 865.6
2014 Q2 3,036 0 0 0.0
2014 Q1 1,426 0 0 0.0
2013 Q4 2,622 0 0 0.0
2013 Q3 2,815 0 0 0.0
2013 Q2 2,685 0 0 0.0
2013 Q1 1,589 0 0 0.0
2012 Q4 2,742 0 0 0.0
2012 Q3 2,749 0 0 0.0
2012 Q2 2,980 0 0 0.0
2012 Q1 1,335 0 0 0.0
2011 Q4 4,380 0 0 0.0
2011 Q3 3,064 0 0 0.0
2011 Q2 2,842 2 0 703.7
2011 Q1 800 0 0 0.0
2010 Q4 2,402 0 0 0.0
2010 Q3 3,133 0 0 0.0
2010 Q2 2,439 6 3 2460.0
2010 Q1 521 0 0 0.0
2009 Q4 2,432 0 0 0.0
2009 Q3 3,088 0 0 0.0
2009 Q2 1,978 3 1 1516.7
2009 Q1 219 0 0 0.0
2008 Q4 1,170 0 0 0.0
2008 Q3 2,001 0 0 0.0
2008 Q2 1,959 2 0 1020.9
2008 Q1 204 0 0 0.0
2007 Q4 1,813 0 0 0.0
2007 Q3 2,369 0 0 0.0
2007 Q2 2,614 0 0 0.0
2007 Q1 274 0 0 0.0
2006 Q4 2,095 0 0 0.0
2006 Q3 2,516 0 0 0.0
2006 Q2 2,604 0 0 0.0
2006 Q1 223 0 0 0.0
2005 Q4 1,810 0 0 0.0
2005 Q3 2,141 0 0 0.0
2005 Q2 2,133 0 0 0.0
2005 Q1 193 0 0 0.0
2004 Q4 2,535 0 0 0.0
2004 Q3 2,508 0 0 0.0
2004 Q2 1,969 0 0 0.0
2004 Q1 57 0 0 0.0
2003 Q4 1,727 0 0 0.0
2003 Q3 258 0 0 0.0
2003 Q2 179 0 0 0.0
2003 Q1 394 0 0 0.0
2002 Q4 957 0 0 0.0
2002 Q3 642 0 0 0.0
2002 Q2 1,022 0 0 0.0
2002 Q1 164 0 0 0.0
2001 Q4 831 2 1 2406.7
2001 Q3 1,498 0 0 0.0
2001 Q2 887 1 0 1127.4
2001 Q1 196 0 0 0.0
2000 Q4 1,375 0 0 0.0
2000 Q3 1,593 0 0 0.0
2000 Q2 1,617 2 0 1236.9
2000 Q1 469 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2025 · 1 incident

March 10, 2025 NH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Pike Industries Inc · Over-exertion in lifting objects

Employee was changing the screens when EE felt pain in EE's back

1996 · 1 incident

July 15, 1996 NH · Metal/Non-Metal mine manager, mine foreman, mine owner STEPPING OR KNEELING ON OBJECT
Tilcon Maine Inc · Struck against stationary object

WHILE EXITING FUEL TRUCK, SLIPPED ON ROCK. RIGHTFOOT TWISTED RESULTING IN FRACTURE.

1991 · 1 incident

June 10, 1991 NH · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
John Iafolla Company Inc · Fall from machine

ASCENDING LADDER ON SIDE OF WATER T5UCK USED FOR DUST CONTROL SLIPPED & FELL APPROS 4' TO GROUND. FRACTURE TO LEFT COLLAR BONE CRACKED ONE RIB & CUT TO BACK OF HEAD.