Mining Incidents

Rivergate: 126 MSHA citations Metal/Non-Metal

Gilmour and Company · Facility
St. Johns, Multnomah County, OR  ·  Active
MSHA Mine ID: 3503659

Rivergate has $19K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
15
Years on record
2007–2024
Latest incident
Sep 2024
Compliance record
MSHA citations since 2007
126
citations
19
significant & substantial
$18,979
proposed penalties
$18,979
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
62
inspections on record
1,040
inspection hours
12.1
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.
126 citations across 1,040 inspection hours.
Source: MSHA inspections data, updated weekly.

Rivergate has $19K in proposed MSHA penalties and $0 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.
$19K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
123 assessments are final orders; 1 contested dockets.
Of $687 in penalties contested before the Commission, $687 was upheld in final decisions.
As of the most recent assessment on 2025-12-29.
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.
15.1%
significant & substantial
2.4%
high negligence or reckless
15.1%
reasonably likely or greater
52.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 27.8% low, 69.8% moderate, 2.4% 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.
1 citations taken to the federal commission · 1% of citations on record
  • Settled 1 · 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 1 decided S&S contests · industry: 79%
0%
Penalty reduction in decided contests
$687 proposed, $687 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 2011-08-02.
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
WEST 2011-1324M Settlement Lesnick 2012 $687 → $687
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: 2026-01-06
0%
of limit-tested samples over the exposure limit
40
samples
31
limit-tested
Most sampled contaminants
  • Calcium oxide18
  • Unlisted Particulate, respirable, <1% Qtz6
  • Nuisance dust, total, <1% Qtz5
  • Nuisance dust, respirable, <1% Qtz4
Show the individual readings (52)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-01-06 Nuisance dust, total, <1% Qtz 0.22 10 0.02 Forklift Operator
2026-01-06 Nuisance dust, total, <1% Qtz 0.26 10 0.03 Forklift Operator
2025-08-19 Nuisance dust, total, <1% Qtz 1.07 10 0.11 Forklift Operator
2025-08-19 Nuisance dust, total, <1% Qtz 0.16 10 0.02 Truck Loader
2025-08-19 Nuisance dust, total, <1% Qtz 0.36 10 0.04 Mechanic
2021-09-22 Unlisted Particulate, respirable, <1% Qtz 0.4 Bagging Operator
2021-09-22 Unlisted Particulate, total, <1% Qtz 0.58 Packaging Operations Worker
2019-06-17 Calcium oxide 0.66 5 0.13 Bagging Operator
2018-04-10 Calcium oxide 0.71 5 0.14 Hydrating Plant Operator
2018-04-10 Calcium oxide 0.44 5 0.09 Building Repair/Maint.
2018-04-10 Calcium oxide 2.81 5 0.56 Bagging Operator
2017-04-05 Quartz, respirable, >1% Qtz 0.32 1.61 0.20 Hydrating Plant Operator
2017-04-05 Nuisance dust, respirable, <1% Qtz 0.61 10 0.06 Hydrating Plant Operator
2016-08-01 Calcium oxide 0.15 5 0.03 Forklift Operator
2016-08-01 Calcium oxide 0.46 5 0.09 Bagging Operator
2016-08-01 Calcium oxide 0.33 5 0.07 Bagging Operator
2015-02-26 Calcium oxide 0.11 5 0.02 Bagging Operator
2015-02-26 Calcium oxide 0.24 5 0.05 Bagging Operator
2014-07-08 Respirable dust, <.1mg 0 Hydrating Plant Operator
2014-07-08 Calcium oxide 0.67 5 0.13 Warehouse Man
2014-07-08 Calcium oxide 1.07 5 0.21 Bagging Operator
2014-07-08 Nuisance dust, respirable, <1% Qtz 0.4 10 0.04 Warehouse Man
2014-07-08 Nuisance dust, respirable, <1% Qtz 0.56 10 0.06 Bagging Operator
2013-04-03 Calcium oxide 0.08 5 0.02 Bagging Operator
2013-04-03 Calcium oxide 0.1 5 0.02 Bagging Operator
2011-03-31 Calcium oxide 0.05 5 0.01 Utility Man
2011-03-31 Nuisance dust, respirable, <1% Qtz 1.71 10 0.17 Bagging Operator
2011-03-31 Calcium oxide 0.43 5 0.09 Bagging Operator
2010-06-15 Arsenic fumes 0 1500 0.00 Welder, etc.
2010-06-15 Zinc oxide fumes 0 10 0.00 Welder, etc.
2010-06-15 Vanadium fumes 0.59 50 0.01 Welder, etc.
2010-06-15 Nickel fumes 0 3 0.00 Welder, etc.
2010-06-15 Molybdenum fumes 0 20 0.00 Welder, etc.
2010-06-15 Manganese fumes 0.29 5 0.06 Welder, etc.
2010-06-15 Magnesium oxide fumes 0.03 20 0.00 Welder, etc.
2010-06-15 Lead fumes 12.55 450 0.03 Welder, etc.
2010-06-15 Iron oxide fumes 3.58 20 0.18 Welder, etc.
2010-06-15 Copper fumes 19.02 300 0.06 Welder, etc.
2010-06-15 Cobalt fumes 0.78 300 0.00 Welder, etc.
2010-06-15 Chromium, insoluble 0 3 0.00 Welder, etc.
2010-06-15 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2010-06-15 Beryllium fumes 0 6 0.00 Welder, etc.
2010-02-10 Calcium oxide 0.21 5 0.04 Forklift Operator
2010-02-10 Calcium oxide 0.16 5 0.03 Laborer, Bullgang
2010-02-10 Calcium oxide 0.15 5 0.03 Mechanic
2009-01-22 Unlisted Particulate, respirable, <1% Qtz 0.58 Laborer, Bullgang
2009-01-22 Unlisted Particulate, respirable, <1% Qtz 0.9 Truck Loader
2009-01-22 Respirable dust, <.1mg 0 Mechanic
2009-01-22 Unlisted Particulate, respirable, <1% Qtz 0.43 Laborer, Bullgang
2007-05-17 Quartz, respirable, >1% Qtz 0.98 3.2 0.31 Laborer, Bullgang
2007-05-17 Unlisted Particulate, respirable, <1% Qtz 2 Laborer, Bullgang
2007-05-17 Unlisted Particulate, respirable, <1% Qtz 0.61 Laborer, Bullgang
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.

Rivergate recorded 8.83 reportable injury cases per 100 full-time workers in 2019.

Injury rate, 2019
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.
8.83
total case rate
8.83
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.94 and the all-US-mining average was 2.32 cases per 100 workers.
In Oregon, metal and nonmetal mining averaged 2.22 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
2019 * 8.83 8.83 0.000
2018 * 9.37 9.37 0.000
2017 * 8.97 8.97 0.000
2016 * 0.00 0.00 0.000
2015 * 17.08 17.08 0.000
2014 * 8.04 8.04 0.000
2013 * 0.00 0.00 0.000
2012 * 25.39 8.46 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. Gilmour and Company 2007 to present
  2. Graymont Western US Inc 2008 to 2009
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 7
2025 8
2024 9
2023 10
2022 10
2021 11
2020 13
2019 13
2018 11
2017 13
2016 14
2015 13
2014 13
2013 13
2012 14
2011 13
2010 12
2009 13
2008 12
2007 11
Source: MSHA quarterly employment and production, updated weekly.

Rivergate sits in Multnomah County, Oregon, where the Census mining category is 0.0% 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.
Multnomah County, Oregon · Population 803,863
0.0%
Mining share of county employment
$86,247
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 3,236 0 0 0.0
2026 Q1 3,310 0 0 0.0
2025 Q4 3,620 2 0 552.5
2025 Q3 3,895 0 0 0.0
2025 Q2 3,945 2 1 507.0
2025 Q1 3,195 0 0 0.0
2024 Q4 4,044 4 1 989.1
2024 Q3 3,870 1 0 258.4
Show 70 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,504 0 0 0.0
2024 Q1 4,646 3 0 645.7
2023 Q4 4,493 0 0 0.0
2023 Q3 4,763 0 0 0.0
2023 Q2 4,995 0 0 0.0
2023 Q1 4,501 2 0 444.3
2022 Q4 3,851 0 0 0.0
2022 Q3 5,087 0 0 0.0
2022 Q2 5,035 1 0 198.6
2022 Q1 4,720 0 0 0.0
2021 Q4 4,093 1 0 244.3
2021 Q3 5,000 0 0 0.0
2021 Q2 5,170 3 1 580.3
2021 Q1 4,790 7 1 1461.4
2020 Q4 3,835 0 0 0.0
2020 Q3 5,429 0 0 0.0
2020 Q2 5,067 1 0 197.4
2020 Q1 5,183 0 0 0.0
2019 Q4 4,599 3 0 652.3
2019 Q3 6,175 1 1 161.9
2019 Q2 6,550 2 0 305.3
2019 Q1 5,327 0 0 0.0
2018 Q4 5,051 9 1 1781.8
2018 Q3 5,692 0 0 0.0
2018 Q2 5,500 1 0 181.8
2018 Q1 5,108 1 0 195.8
2017 Q4 5,526 0 0 0.0
2017 Q3 6,235 0 0 0.0
2017 Q2 5,112 1 0 195.6
2017 Q1 5,418 0 0 0.0
2016 Q4 5,660 1 0 176.7
2016 Q3 7,718 0 0 0.0
2016 Q2 6,741 0 0 0.0
2016 Q1 5,257 5 0 951.1
2015 Q4 4,868 0 0 0.0
2015 Q3 6,298 3 0 476.3
2015 Q2 6,148 0 0 0.0
2015 Q1 6,101 5 0 819.5
2014 Q4 5,718 0 0 0.0
2014 Q3 6,458 5 1 774.2
2014 Q2 6,623 0 0 0.0
2014 Q1 6,080 5 0 822.4
2013 Q4 6,200 0 0 0.0
2013 Q3 6,892 0 0 0.0
2013 Q2 6,418 5 2 779.1
2013 Q1 5,750 0 0 0.0
2012 Q4 5,955 4 0 671.7
2012 Q3 6,399 1 1 156.3
2012 Q2 6,099 0 0 0.0
2012 Q1 5,174 0 0 0.0
2011 Q4 5,270 0 0 0.0
2011 Q3 6,300 0 0 0.0
2011 Q2 5,763 0 0 0.0
2011 Q1 5,300 1 1 188.7
2010 Q4 5,088 2 0 393.1
2010 Q3 7,097 0 0 0.0
2010 Q2 5,342 2 0 374.4
2010 Q1 5,656 8 3 1414.4
2009 Q4 5,800 0 0 0.0
2009 Q3 6,988 0 0 0.0
2009 Q2 4,557 4 0 877.8
2009 Q1 5,500 4 0 727.3
2008 Q4 5,500 0 0 0.0
2008 Q3 6,200 0 0 0.0
2008 Q2 4,847 8 2 1650.5
2008 Q1 5,800 0 0 0.0
2007 Q4 6,813 9 2 1321.0
2007 Q3 5,962 0 0 0.0
2007 Q2 4,887 3 0 613.9
2007 Q1 4,152 3 0 722.5
No fatalities recorded at this mine.

Reportable incidents

15 on file

2024 · 1 incident

September 11, 2024 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gilmour and Company · Over-exertion in lifting objects

While restacking pallets of damaged hydrated lime bags on 09/11/24, the miner felt a strain in EE's back.

2019 · 1 incident

August 22, 2019 OR · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Gilmour and Company · Fall to the walkway or working surface

Contract Truck Driver was injured when EE fell over tightening the load straps.

2018 · 1 incident

September 28, 2018 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gilmour and Company · Absorption of radiations, caustics, toxic and noxious substances

EE was climbing down a ladder when they felt something enter their right eye. EE was wearing all required PPE. EE immediately reported the issue and began flushing eye with saline eye wash solution. After a couple of hours of eye washing, Site manager suggested that the EE go to the clinic to get checked out. EE was prescribed Prednisolone eye wash solution.

2017 · 1 incident

June 23, 2017 OR · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Gilmour and Company · Absorption of radiations, caustics, toxic and noxious substances

Employee was cleaning at end of shift. EE was sweeping up Hydrated lime with a squeegee and a dust bin when lime from the pile became airborne due to the dust bin adjusting quickly and a small amount of dust got into the employee's eyes. The employee did not report any injury until Sunday 06/25/2017 @ 10:50 am. Employee was instructed to visit a clinic and then file a report.

2015 · 2 incidents

July 14, 2015 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gilmour and Company · Struck by... (Not Elsewhere Classified)

A small amount lime dust fell from buildup on an overhead guard and entered the employee's eye even though the employee was wearing eye and head protection. (High-viz type 1 Hardhat, Safety glasses with side-shields and foam guard inserts on the lens.) Employee was seen by an ophthalmologist and prescribed hydrocodone to relive the pain from the scratches to the cornea.

February 12, 2015 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Gilmour and Company · Bodily reaction, (Not Elsewhere Classified)

Employee was doing pre-shift stretches when he felt pain in his lower back.

2014 · 1 incident

October 3, 2014 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator STEPPING OR KNEELING ON OBJECT
Gilmour and Company · Struck against stationary object

Employee stepped on a discarded plastic covering while attempting to pull a new roll of 5mil. shrink wrap bags off the pallet they were sitting on; while performing this action, employee slipped on the discarded plastic covering, straining his back.

2013 · 1 incident

January 18, 2013 OR · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDLING OF MATERIALS
Gilmour and Company · Absorption of radiations, caustics, toxic and noxious substances

Working at lime plant, Workers were in all their PPE. Air born lime dust got on workers skin and then into his eye causing irritation. As a preventative measure eye was flushed and he was sent to the clinic to be checked. They flushed they eye some more and sent him to the eye clinic to make sure there was no damage. He was given prescription eye drops and was released.

2012 · 3 incidents

July 20, 2012 OR · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Gilmour and Company · Over-exertion (Not Elsewhere Classified)

Employee was using a crescent wrench to tighten a bolt when he felt pain in his right wrist.

July 19, 2012 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gilmour and Company · Over-exertion in lifting objects

Employee was lifting sack on to pallet when he felt pain in his upper left back. Sack weighed 35lbs.

April 26, 2012 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gilmour and Company · Struck by falling object

Employee was pulling plastic bag off of roll, the bracket for the roll broke causing the roll to fall approximately 3 feet down onto the employees left foot.

2011 · 1 incident

March 21, 2011 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gilmour and Company · Absorption of radiations, caustics, toxic and noxious substances

Employee was packing 35# sacks at the packer station when a bag blew off of the spout. When this happened, employee reached to push the stop button to stop the flow of material and his arm came in contact with the stream hydrated lime causing material to deflect up and around his safety glasses and into his right eye.

2010 · 1 incident

February 4, 2010 OR · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Gilmour and Company · Over-exertion in pulling or pushing objects

EE and a co-worker of maintenance department, were working trying to install a power shaft into a tube on a 41 inch workbench. Co-worker was at one end of the tube, guiding the shaft so it did not score the inside of the tube. EE inadvertently used his middle back, instead of his whole body as one motion, to push the shaft into the tube, thereby causing the injury.

2009 · 1 incident

2007 · 1 incident

March 22, 2007 OR · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gilmour and Company · Absorption of radiations, caustics, toxic and noxious substances

Employee was unplugging a pipe with Hydrated lime when the material back flushed and entered the left eye above the side shield of his safety glasses.