Mining Incidents

Kolberg: 17 MSHA citations Metal/Non-Metal

Derek Nikko Excavating Inc · Surface
Controlled by Derek William Nikko
Waverly, MN, Wright County, MN  ·  Abandoned
MSHA Mine ID: 2103531

Kolberg has $2K 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 2009
17
citations
6
significant & substantial
$1,899
proposed penalties
$1,899
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
26
inspections on record
150
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: 150 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Kolberg has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
16 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2017-11-02.
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.
35.3%
significant & substantial
0.0%
high negligence or reckless
35.3%
reasonably likely or greater
35.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 35.3% low, 64.7% 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: 2012-09-18, 13 years ago
1
samples
0
limit-tested
Most sampled contaminants
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Occupation
2012-09-18 Unlisted Particulate, respirable, <1% Qtz 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. Derek Nikko Excavating Inc 2006 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
2014 2
2013 2
2012 2
2011 2
2010 2
2009 3
2008 3
2007 3
2006 3
Source: MSHA quarterly employment and production, updated weekly.

Kolberg sits in Wright County, Minnesota, where the Census mining category is 0.2% 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.
Wright County, Minnesota · Population 145,270
0.2%
Mining share of county employment
$106,666
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 0 0 0.0
2026 Q1 2 0 0 0.0
2025 Q4 2 0 0 0.0
2025 Q3 2 0 0 0.0
2025 Q2 2 0 0 0.0
2025 Q1 2 0 0 0.0
2024 Q4 2 0 0 0.0
2024 Q3 2 0 0 0.0
Show 73 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 51 0 0 0.0
2024 Q1 51 0 0 0.0
2023 Q4 51 0 0 0.0
2023 Q3 101 0 0 0.0
2023 Q2 101 0 0 0.0
2023 Q1 11 0 0 0.0
2022 Q4 51 0 0 0.0
2022 Q3 101 0 0 0.0
2022 Q2 11 0 0 0.0
2022 Q1 2 0 0 0.0
2021 Q4 2 0 0 0.0
2021 Q3 101 0 0 0.0
2021 Q2 161 0 0 0.0
2021 Q1 2 0 0 0.0
2020 Q4 91 0 0 0.0
2020 Q3 31 0 0 0.0
2020 Q2 181 0 0 0.0
2020 Q1 2 0 0 0.0
2019 Q4 91 0 0 0.0
2019 Q3 91 0 0 0.0
2019 Q2 101 0 0 0.0
2019 Q1 11 0 0 0.0
2018 Q4 21 0 0 0.0
2018 Q3 101 0 0 0.0
2018 Q2 21 0 0 0.0
2018 Q1 6 0 0 0.0
2017 Q4 11 1 1 90909.1
2017 Q3 9 2 0 222222.2
2017 Q2 2 0 0 0.0
2017 Q1 6 0 0 0.0
2016 Q4 11 0 0 0.0
2016 Q3 26 0 0 0.0
2016 Q2 41 0 0 0.0
2016 Q1 11 0 0 0.0
2015 Q4 251 0 0 0.0
2015 Q3 481 2 0 4158.0
2015 Q2 481 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 441 0 0 0.0
2014 Q3 481 0 0 0.0
2014 Q2 381 1 1 2624.7
2014 Q1 1 0 0 0.0
2013 Q4 481 0 0 0.0
2013 Q3 601 1 0 1663.9
2013 Q2 481 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 481 0 0 0.0
2012 Q3 481 1 0 2079.0
2012 Q2 600 0 0 0.0
2012 Q1 130 0 0 0.0
2011 Q4 400 0 0 0.0
2011 Q3 720 2 1 2777.8
2011 Q2 720 0 0 0.0
2011 Q1 65 0 0 0.0
2010 Q4 50 0 0 0.0
2010 Q3 650 4 2 6153.8
2010 Q2 1,120 0 0 0.0
2010 Q1 120 0 0 0.0
2009 Q4 1,580 0 0 0.0
2009 Q3 1,820 3 1 1648.4
2009 Q2 1,400 0 0 0.0
2009 Q1 30 0 0 0.0
2008 Q4 1,260 0 0 0.0
2008 Q3 1,820 0 0 0.0
2008 Q2 1,485 0 0 0.0
2008 Q1 120 0 0 0.0
2007 Q4 660 0 0 0.0
2007 Q3 1,365 0 0 0.0
2007 Q2 1,300 0 0 0.0
2007 Q1 20 0 0 0.0
2006 Q4 120 0 0 0.0
2006 Q3 564 0 0 0.0
2006 Q2 504 0 0 0.0

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.