Pit Number One Metal/Non-Metal
Arkansas Valley Aggregate LLC
· Surface
Controlled by
Marilyn Diamond
Buena Vista,
Chaffee County,
CO
·
Intermittent
MSHA Mine ID: 0504714
Pit Number One has $2K in proposed MSHA penalties and $151 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 2007
12
citations
4
significant & substantial
$1,770
proposed penalties
$1,619
paid to date
91% of proposed penalties paid to date, a $151 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
11
inspections on record
145
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: 145 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Pit Number One has $2K in proposed MSHA penalties and $151 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
$151
outstanding
12 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
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 |
|---|---|---|---|---|
| 2025 Q4 | 435 | 0 | 0 | 0.0 |
| 2025 Q3 | 50 | 3 | 2 | 60000.0 |
| 2025 Q2 | 900 | 0 | 0 | 0.0 |
| 2025 Q1 | 119 | 0 | 0 | 0.0 |
| 2014 Q1 | 20 | 0 | 0 | 0.0 |
| 2013 Q4 | 0 | 0 | 0 | |
| 2013 Q2 | 0 | 0 | 0 | |
| 2012 Q4 | 80 | 0 | 0 | 0.0 |
Show 26 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2012 Q3 | 679 | 0 | 0 | 0.0 |
| 2012 Q2 | 293 | 1 | 0 | 3413.0 |
| 2012 Q1 | 0 | 0 | 0 | |
| 2011 Q4 | 46 | 0 | 0 | 0.0 |
| 2011 Q3 | 849 | 0 | 0 | 0.0 |
| 2011 Q2 | 876 | 1 | 1 | 1141.6 |
| 2011 Q1 | 360 | 0 | 0 | 0.0 |
| 2010 Q4 | 80 | 0 | 0 | 0.0 |
| 2010 Q3 | 360 | 0 | 0 | 0.0 |
| 2010 Q2 | 624 | 4 | 0 | 6410.3 |
| 2010 Q1 | 50 | 0 | 0 | 0.0 |
| 2009 Q4 | 0 | 0 | 0 | |
| 2009 Q3 | 869 | 0 | 0 | 0.0 |
| 2009 Q2 | 340 | 1 | 0 | 2941.2 |
| 2009 Q1 | 40 | 0 | 0 | 0.0 |
| 2008 Q4 | 40 | 0 | 0 | 0.0 |
| 2008 Q3 | 1,300 | 0 | 0 | 0.0 |
| 2008 Q2 | 1,200 | 0 | 0 | 0.0 |
| 2008 Q1 | 0 | 0 | 0 | |
| 2007 Q4 | 20 | 0 | 0 | 0.0 |
| 2007 Q3 | 850 | 1 | 1 | 1176.5 |
| 2002 Q3 | 0 | 0 | 0 | |
| 2002 Q2 | 0 | 0 | 0 | |
| 2002 Q1 | 0 | 0 | 0 | |
| 2001 Q4 | 0 | 0 | 0 | |
| 2001 Q3 | 118 | 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.
For insurers, brokers, and safety consultants
The full compliance file on Pit Number One
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.