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: 314 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Keenesburg #2 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
44 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-27.
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.
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: 2025-06-12
13%
of limit-tested samples over the exposure limit
10
samples
8
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz61 over
Respirable dust, <.1mg2
Arsenic fumes1
Beryllium fumes1
Show the individual readings (22)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-01-18
Quartz, respirable, >1% Qtz
0.65
0.57
1.14
Front-end Loader Operator
2025-06-12
Zinc oxide fumes
0
10
0.00
Welder, etc.
2025-06-12
Molybdenum fumes
0
20
0.00
Welder, etc.
2025-06-12
Nickel fumes
0
3
0.00
Welder, etc.
2025-06-12
Vanadium fumes
0
50
0.00
Welder, etc.
2025-06-12
Quartz, respirable, >1% Qtz
0.47
0.65
0.72
Dry Screen Plant Operator
2025-06-12
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-06-12
Quartz, respirable, >1% Qtz
0.2
0.93
0.22
Cleanup Man
2025-06-12
Quartz, respirable, >1% Qtz
0.42
1.04
0.40
Welder, etc.
2025-06-12
Arsenic fumes
0
1500
0.00
Welder, etc.
2025-06-12
Beryllium fumes
0
6
0.00
Welder, etc.
2025-06-12
Cadmium oxide fumes
0
100
0.00
Welder, etc.
2025-06-12
Chromium, insoluble
0
3
0.00
Welder, etc.
2025-06-12
Cobalt fumes
0
300
0.00
Welder, etc.
2025-06-12
Copper fumes
0
300
0.00
Welder, etc.
2025-06-12
Iron oxide fumes
0
20
0.00
Welder, etc.
2025-06-12
Lead fumes
0
450
0.00
Welder, etc.
2025-06-12
Magnesium oxide fumes
0.09
20
0.00
Welder, etc.
2025-06-12
Manganese fumes
0
5
0.00
Welder, etc.
2024-01-18
Quartz, respirable, >1% Qtz
0.15
0.55
0.27
Dry Screen Plant Operator
2024-01-18
Quartz, respirable, >1% Qtz
0.13
0.52
0.25
Washer Operator
2024-01-18
Respirable dust, <.1mg
0
Sampler, Dust
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.
Keenesburg #2 recorded 0.64 reportable injury cases per 100 full-time workers in 2025.
Injury rate, 2025
ⓘThis rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.64
total case rate
0.64
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Colorado, metal and nonmetal mining averaged 1.64 cases per 100 workers that year.
Year
total case rate
days-away
fatal
2025
0.64
0.64
0.000
2024
1.53
0.00
0.000
2023
2.80
0.00
0.000
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
130
2025
132
2024
109
2023
81
2022
45
Source: MSHA quarterly employment and production, updated weekly.
Keenesburg #2 sits in Weld County, Colorado, where the Census mining category is 2.4% 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.
Weld County, Colorado · Population 340,711
2.4%
Mining share of county employment
$93,287
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
Driver and Passenger (IE). Both employees were wearing seat belts when traveling in a Polaris UTV. Took a corner too sharp, turned UTV onto it's side on concrete surface. Passenger sustained elbow laceration.
January 17, 2026CO · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
Employee was attempting to break frozen material on grizzly feeder using a 10lbs sledgehammer. When swinging the hammer, employee caught EE's right index finger. Resulted in laceration requiring 10 sutures. Employee was wearing gloves.
Colorado Sand Company · Caught in, under or between a moving and a stationary object
Employee was driving Dingo, backed into a metal post & caught their left foot between post & equipment. EE fell to the right, landed on cement, causing a small contusion on right elbow. EE pulled themselves up, hit the Forward controller & equipment moved, releasing foot. Removed their boot, found their ankle bleeding. Was taken in to be seen. No ligament or tendons damaged.
May 14, 2025CO · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY
The employee was using a hammer drill with a chipping bit to chip out concrete. The bit attached to the hammer drill got stuck in the concrete and while the employee was trying to free the stuck bit from the concrete the hammer drill kicked back and hit them in the nose. After visiting the doctor it was determined that the employee had a small fracture to their nose.
2024 · 2 incidents
December 9, 2024CO · Metal/Non-Metaloutside foreman, leadmanOTHER
Injured worker was working with Maintenance Crew member. The pair were to pull a gear box & motor off the belt while being supervised by Maintenance manager. When they unbolted the assembly it rolled and struck injured employee on the right shoulder, arm, and torso. Resulting in employee Needing Stitches.
2023 · 2 incidents
July 14, 2023CO · Metal/Non-Metalclerk, timekeeper, office worker, director of salesHANDLING OF MATERIALS
Colorado Sand Company · Caught in, under or between a moving and a stationary object
Employee was moving a motor and had gotten hand caught in between the motor and the concrete floor. This caused a small 3/8" cut to the inside of right hand.
March 29, 2023CO · Metal/Non-Metalclerk, timekeeper, office worker, director of salesHANDTOOLS (NONPOWERED)
Employee was cutting a zip tie from a cable. Wile having the utility knife in right hand the cable was moving around so they grabbed it with left hand putting their hand in the path of the cut resulting in a 1 ½" laceration on the top of the employee's left hand. Employee was taken to the local urgent care and received 9 stiches. Employee returned to work afterwards.