Mining Incidents

River Aggregates Porter Plant: 147 MSHA citations Metal/Non-Metal

Controlled by Arcosa, Inc
Porter, Montgomery County, TX  ·  Abandoned
MSHA Mine ID: 4103884

River Aggregates Porter Plant has $91K in proposed MSHA penalties and $13K outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
3
Years on record
2004–2011
Latest incident
Sep 2011
Compliance record
MSHA citations since 2001
147
citations
56
significant & substantial
$90,948
proposed penalties
$74,400
paid to date
82% of proposed penalties paid to date, a $16,548 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
39
inspections on record
487
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: 487 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

River Aggregates Porter Plant has $91K in proposed MSHA penalties and $13K outstanding across 1 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.
$91K
proposed penalties
$88K
current assessed
$74K
paid to date
$13K
outstanding
143 assessments are final orders; 1 contested dockets.
Of $13K in penalties contested before the Commission, $10K was upheld in final decisions.
As of the most recent assessment on 2012-11-06.
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.
39.2%
significant & substantial
11.2%
high negligence or reckless
39.2%
reasonably likely or greater
53.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 4.2% low, 84.6% moderate, 11.2% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
12 citations taken to the federal commission · 8% of citations on record
  • Settled 12 · 100%
100%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 7 decided S&S contests · industry: 79%
25%
Penalty reduction in decided contests
$13K proposed, $10K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2009-12-22.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
CENT 2010-300M Settlement Lewis 2011 $13K → $10K
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2012-11-07, 13 years ago
13
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg13
Show the individual readings (13)
Date Contaminant Concentration Limit Conc / limit Occupation
2012-11-07 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2012-11-07 Respirable dust, <.1mg 0 Washer Operator
2008-04-22 Respirable dust, <.1mg 0 Washer Operator
2008-04-22 Respirable dust, <.1mg 0 Dredge/Barge Operator
2008-04-22 Respirable dust, <.1mg 0 Bulldozer Operator
2007-11-27 Respirable dust, <.1mg 0 Washer Operator
2007-11-27 Respirable dust, <.1mg 0 Washer Operator
2007-11-27 Respirable dust, <.1mg 0 Dredge/Barge Operator
2002-05-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-05-01 Respirable dust, <.1mg 0 Laborer, Bullgang
2002-05-01 Respirable dust, <.1mg 0 Truck Driver
2002-05-01 Respirable dust, <.1mg 0 Truck Driver
2002-05-01 Respirable dust, <.1mg 0 Sand Filler (Wet)
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.

River Aggregates Porter Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2012.

Injury rate, 2012
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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 2.48 and the all-US-mining average was 2.96 cases per 100 workers.
In Texas, metal and nonmetal mining averaged 2.82 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2012 * 0.00 0.00 0.000
2011 * 5.64 0.00 0.000
2010 * 6.91 6.91 0.000
2008 * 0.00 0.00 0.000
2007 * 0.00 0.00 0.000
2006 * 0.00 0.00 0.000
2005 * 0.00 0.00 0.000
2004 * 2.61 2.61 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
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.
Ownership history
  1. Sorters Road Sand & Gravel 1996 to 2006
  2. SUNRISE MATERIALS 2006 to 2010
  3. SUNRISE MATERIALS 2010 to 2011
  4. River Aggregates LLC 2011 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2013 8
2012 8
2011 13
2010 10
2009 10
2008 22
2007 25
2006 34
2005 35
2004 34
2003 29
2002 35
2001 21
2000 18
Source: MSHA quarterly employment and production, updated weekly.

River Aggregates Porter Plant sits in Montgomery County, Texas, where the Census mining category is 3.8% 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.
Montgomery County, Texas · Population 654,722
3.8%
Mining share of county employment
$97,266
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
2013 Q2 2,665 0 0 0.0
2013 Q1 6,027 0 0 0.0
2012 Q4 6,099 2 1 327.9
2012 Q3 5,569 0 0 0.0
2012 Q2 6,335 2 0 315.7
2012 Q1 7,142 0 0 0.0
2011 Q4 8,732 7 2 801.6
2011 Q3 10,565 0 0 0.0
Show 46 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2011 Q2 7,435 4 0 538.0
2011 Q1 8,707 0 0 0.0
2010 Q4 8,108 7 5 863.3
2010 Q3 7,640 0 0 0.0
2010 Q2 7,256 10 6 1378.2
2010 Q1 5,927 0 0 0.0
2009 Q4 6,076 12 7 1975.0
2009 Q3 1,465 0 0 0.0
2009 Q2 1,473 14 7 9504.4
2009 Q1 6,235 6 0 962.3
2008 Q4 1,030 0 0 0.0
2008 Q3 14,678 0 0 0.0
2008 Q2 17,657 5 3 283.2
2008 Q1 16,655 0 0 0.0
2007 Q4 16,318 5 2 306.4
2007 Q3 16,568 0 0 0.0
2007 Q2 17,089 26 10 1521.4
2007 Q1 14,880 0 0 0.0
2006 Q4 16,078 0 0 0.0
2006 Q3 17,017 5 3 293.8
2006 Q2 19,441 0 0 0.0
2006 Q1 18,659 8 2 428.7
2005 Q4 22,852 0 0 0.0
2005 Q3 28,027 0 0 0.0
2005 Q2 22,720 0 0 0.0
2005 Q1 18,358 5 0 272.4
2004 Q4 20,241 0 0 0.0
2004 Q3 19,260 0 0 0.0
2004 Q2 20,935 2 0 95.5
2004 Q1 16,183 3 0 185.4
2003 Q4 16,985 0 0 0.0
2003 Q3 15,123 1 0 66.1
2003 Q2 17,558 14 5 797.4
2003 Q1 16,370 0 0 0.0
2002 Q4 18,378 0 0 0.0
2002 Q3 17,906 0 0 0.0
2002 Q2 15,969 5 1 313.1
2002 Q1 13,452 0 0 0.0
2001 Q4 11,600 2 1 172.4
2001 Q3 10,800 0 0 0.0
2001 Q2 10,800 0 0 0.0
2001 Q1 9,600 2 1 208.3
2000 Q4 13,388 0 0 0.0
2000 Q3 13,400 0 0 0.0
2000 Q2 13,270 0 0 0.0
2000 Q1 1,488 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2011 · 1 incident

September 12, 2011 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
River Aggregates LLC · Struck by... (Not Elsewhere Classified)

Was grinding pontoon when grinder caught on steel and jumped up and cut his chin

2010 · 1 incident

October 22, 2010 TX · Metal/Non-Metal rotary bucket excavator operator HANDLING OF MATERIALS
SUNRISE MATERIALS · Struck against stationary object

EE got his finger cut with the edge of a 12" pipe while operators were performing maint. on the dredge. The injured finger is the right little finger or "pinky". Operator was wearing his P.P. E. at the time including gloves. EE was taken to the hospital immediately and doctors will determine the damage.

2004 · 1 incident

March 3, 2004 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Sorters Road Sand & Gravel · Struck by flying object

Employee, who is sorter sand mechanic was changing the travel motor on the Samsung excavator. He placed a steel on the sleeve of the excavator causing it to shatter and send flying metal. A piece of this metal hit EE on his eyebrow. He required stitches.