Mining Incidents

NORTHERN PORTABLE PLANT #2: 1 MSHA citation Metal/Non-Metal

Controlled by Holcim Ltd
Denver, Larimer County, CO  ·  Abandoned
MSHA Mine ID: 0504360

NORTHERN PORTABLE PLANT #2 has $60 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
6
Years on record
1989–1999
Latest incident
Nov 1999
Compliance record
MSHA citations since 2005
1
citations
0
significant & substantial
$60
proposed penalties
$60
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
4
inspections on record
39
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: 39 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

NORTHERN PORTABLE PLANT #2 has $60 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.
$60
proposed penalties
$60
current assessed
$60
paid to date
$0
outstanding
1 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2005-07-12.
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.
0.0%
significant & substantial
0.0%
high negligence or reckless
0.0%
reasonably likely or greater
100.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 100.0% low, 0.0% 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: 2005-07-13, 21 years ago
33%
of limit-tested samples over the exposure limit
3
samples
3
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz31 over
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2005-07-13 Quartz, respirable, >1% Qtz 0.49 0.45 1.09 Supervisor, Co. Official
2005-07-13 Quartz, respirable, >1% Qtz 0.17 0.91 0.19 Front-end Loader Operator
2005-07-13 Quartz, respirable, >1% Qtz 0.15 0.72 0.21 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. Western-Mobile Northern Inc 1988 to 1998
  2. Western Mobile Northern Inc 1998 to 2002
  3. Lafarge West Incorporated 2002 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2009 0
2006 0
2005 4
2004 3
2003 3
2002 3
2001 4
2000 4
Source: MSHA quarterly employment and production, updated weekly.

NORTHERN PORTABLE PLANT #2 sits in Larimer County, Colorado, where the Census mining category is 0.6% 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.
Larimer County, Colorado · Population 363,561
0.6%
Mining share of county employment
$91,364
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
2009 Q1 0 0 0
2006 Q3 0 0 0
2006 Q2 0 0 0
2005 Q3 3,016 1 0 331.6
2004 Q3 0 0 0
2004 Q2 859 0 0 0.0
2004 Q1 1,998 0 0 0.0
2003 Q3 1,233 0 0 0.0
Show 12 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2002 Q4 966 0 0 0.0
2002 Q3 0 0 0
2002 Q2 2,528 0 0 0.0
2002 Q1 2,027 0 0 0.0
2001 Q4 2,008 0 0 0.0
2001 Q3 3,015 0 0 0.0
2001 Q2 3,267 0 0 0.0
2001 Q1 2,086 0 0 0.0
2000 Q4 2,158 0 0 0.0
2000 Q3 2,861 0 0 0.0
2000 Q2 2,870 0 0 0.0
2000 Q1 2,692 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

1999 · 2 incidents

September 10, 1999 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Western Mobile Northern Inc · Struck by... (Not Elsewhere Classified)

REPLACING FLASHING, UTILITY KNIFE SLIPPED & CUT WRIST

1998 · 1 incident

October 15, 1998 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Western Mobile Northern Inc · Struck against stationary object

PICKING MUD OUT OF PIT RUN ON SCREEN. WHILE CLIMBING DOWN, HIT KNEE AGAINST SCREEN BOX.

1995 · 2 incidents

May 9, 1995 CO · Metal/Non-Metal mine manager, mine foreman, mine owner SLIP OR FALL OF PERSON
Western-Mobile Northern Inc · Fall to the walkway or working surface

WALKING ON PLANT SITE AND HAD HIS KNEE GIVE OUT.HE HAS HAD NUMEROUS SURGERIES ON THE SAME KNEE.ALTHOUGH IT IS A PREVIOUS CONDITION HE WILL HAVE TO DO RESTRICTED DUTY AT THE PLANT.

1989 · 1 incident

June 25, 1989 CO · Metal/Non-Metal MACHINERY
Western-Mobile Northern Inc · Caught in, under or between (Not Elsewhere Classified)

CATCHING ANVIL THAT BROKE OUT OF MACHINE TO MINIMIZE DAMAGE.