410 Quarry Inc · Fall onto or against objects
WAS CHECKING WATER IN LOADER, TURNED FELL OFF LOADER HITTING TIRE ON WAY DOWN, REINJURING PREVIOUS CONDITION.
Ryterra LLC: 107 MSHA citations Metal/Non-Metal
Ryterra LLC has $20K in proposed MSHA penalties and $12K outstanding across 2 contested dockets, plus health sampling and the full incident record.
Watch this mine
Email me when a new MSHA incident is filed at Ryterra LLC.
- Fatalities
- 0
- Total incidents
- 10
- Years on record
- 1989–2000
- Latest incident
- Aug 2000
Compliance record
MSHA citations since 2000
107
citations
32
significant & substantial
$19,662
proposed penalties
$7,071
paid to date
36% of proposed penalties paid to date, a $12,591 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
37
inspections on record
636
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: 636 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ryterra LLC has $20K in proposed MSHA penalties and $12K outstanding across 2 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.$20K
proposed penalties
$19K
current assessed
$7K
paid to date
$12K
outstanding
103 assessments are final orders; 2 contested dockets.
Of $6K in penalties contested before the Commission, $4K was upheld in final decisions.
As of the most recent assessment on 2026-05-20.
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.31.1%
significant & substantial
1.9%
high negligence or reckless
31.1%
reasonably likely or greater
61.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 20.4% low, 77.7% moderate, 1.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
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 |
|---|---|---|---|---|
| WEST20000236M | Settlement | Melick | 2001 | $6K → $4K |
| WEST20020450M | Settlement | Manning | 2003 | $385 → $110 |
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: 2026-06-01
ⓘ
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.7
samples
0
limit-tested
Most sampled contaminants
- Quartz, respirable, >1% Qtz3
- Respirable dust, <.1mg2
- Unlisted Particulate, respirable, <1% Qtz2
Show the individual readings (7)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2026-06-01 | Quartz, respirable, >1% Qtz | 0.33 | Crusher Oper/Worker | ||
| 2026-06-01 | Quartz, respirable, >1% Qtz | 0.15 | Front-end Loader Operator | ||
| 2026-06-01 | Quartz, respirable, >1% Qtz | 0.13 | Supervisor, Co. Official | ||
| 2026-06-01 | Respirable dust, <.1mg | 0 | Mechanic | ||
| 2009-06-02 | Unlisted Particulate, respirable, <1% Qtz | 0.21 | Shovel Operator | ||
| 2009-06-02 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2009-06-02 | Unlisted Particulate, respirable, <1% Qtz | 0.13 | Crusher Oper/Worker |
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.
Ryterra LLC recorded 18.11 reportable injury cases per 100 full-time workers in 2000.
Injury rate, 2000
ⓘ
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.18.11
total case rate
18.11
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 4.77 and the all-US-mining average was 5.64 cases per 100 workers.
In Washington, metal and nonmetal mining averaged 5.62 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.
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
- 410 Quarry Inc 1988 to 2007
- 410 Quarry Dibella Enterprises Inc 2007 to 2011
- Interwest Development NW Inc 2011 to 2020
- Ryterra 2020 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 4 |
| 2025 | 3 |
| 2024 | 3 |
| 2023 | 2 |
| 2022 | 4 |
| 2021 | 4 |
| 2020 | 2 |
| 2012 | 2 |
| 2011 | 2 |
| 2010 | 2 |
| 2009 | 6 |
| 2008 | 7 |
| 2007 | 4 |
| 2002 | 7 |
| 2001 | 11 |
| 2000 | 16 |
Source: MSHA quarterly employment and production, updated weekly.
Ryterra LLC sits in King County, Washington, 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.King County, Washington · Population 2,262,713
0.0%
Mining share of county employment
$122,148
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 | 1,597 | 16 | 3 | 10018.8 |
| 2026 Q1 | 1,560 | 0 | 0 | 0.0 |
| 2025 Q4 | 1,168 | 0 | 0 | 0.0 |
| 2025 Q3 | 1,408 | 0 | 0 | 0.0 |
| 2025 Q2 | 1,878 | 0 | 0 | 0.0 |
| 2025 Q1 | 1,408 | 2 | 0 | 1420.5 |
| 2024 Q4 | 1,128 | 0 | 0 | 0.0 |
| 2024 Q3 | 854 | 0 | 0 | 0.0 |
Show 44 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 1,298 | 4 | 0 | 3081.7 |
| 2024 Q1 | 1,394 | 0 | 0 | 0.0 |
| 2023 Q4 | 1,026 | 0 | 0 | 0.0 |
| 2023 Q3 | 540 | 4 | 1 | 7407.4 |
| 2023 Q2 | 152 | 1 | 0 | 6578.9 |
| 2023 Q1 | 0 | 0 | 0 | |
| 2022 Q4 | 1,824 | 0 | 0 | 0.0 |
| 2022 Q3 | 1,671 | 1 | 0 | 598.4 |
| 2022 Q2 | 1,483 | 0 | 0 | 0.0 |
| 2022 Q1 | 1,336 | 0 | 0 | 0.0 |
| 2021 Q4 | 1,211 | 0 | 0 | 0.0 |
| 2021 Q3 | 738 | 0 | 0 | 0.0 |
| 2021 Q2 | 1,126 | 0 | 0 | 0.0 |
| 2021 Q1 | 2,231 | 12 | 4 | 5378.8 |
| 2020 Q4 | 283 | 0 | 0 | 0.0 |
| 2012 Q4 | 0 | 0 | 0 | |
| 2012 Q3 | 116 | 0 | 0 | 0.0 |
| 2012 Q2 | 540 | 0 | 0 | 0.0 |
| 2012 Q1 | 784 | 0 | 0 | 0.0 |
| 2011 Q4 | 853 | 2 | 2 | 2344.7 |
| 2011 Q3 | 870 | 4 | 1 | 4597.7 |
| 2011 Q1 | 160 | 0 | 0 | 0.0 |
| 2010 Q4 | 520 | 7 | 4 | 13461.5 |
| 2010 Q3 | 600 | 13 | 6 | 21666.7 |
| 2010 Q2 | 440 | 2 | 0 | 4545.5 |
| 2010 Q1 | 816 | 3 | 2 | 3676.5 |
| 2009 Q4 | 2,067 | 8 | 3 | 3870.3 |
| 2009 Q3 | 3,098 | 2 | 2 | 645.6 |
| 2009 Q2 | 3,348 | 4 | 3 | 1194.7 |
| 2008 Q4 | 3,601 | 0 | 0 | 0.0 |
| 2008 Q3 | 5,177 | 1 | 1 | 193.2 |
| 2008 Q2 | 2,995 | 0 | 0 | 0.0 |
| 2008 Q1 | 2,729 | 1 | 0 | 366.4 |
| 2007 Q4 | 1,200 | 0 | 0 | 0.0 |
| 2002 Q2 | 1,332 | 0 | 0 | 0.0 |
| 2002 Q1 | 2,975 | 2 | 0 | 672.3 |
| 2001 Q4 | 2,967 | 0 | 0 | 0.0 |
| 2001 Q3 | 2,881 | 3 | 0 | 1041.3 |
| 2001 Q2 | 4,426 | 0 | 0 | 0.0 |
| 2001 Q1 | 5,133 | 0 | 0 | 0.0 |
| 2000 Q4 | 5,461 | 0 | 0 | 0.0 |
| 2000 Q3 | 5,444 | 0 | 0 | 0.0 |
| 2000 Q2 | 5,909 | 14 | 0 | 2369.3 |
| 2000 Q1 | 5,276 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
10 on file2000 · 2 incidents
410 Quarry Inc · Struck by falling object
WAS CHANGING A CUTTING EDGE ON LOADER BUCKET, ADGE SLIPPED & FELL ONTO FOOT.
1999 · 2 incidents
March 18, 1999
WA · Metal/Non-Metal
warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator
SLIP OR FALL OF PERSON
410 Quarry Inc · Fall to lower level, (Not Elsewhere Classified)
FELL OFF ECOLOGY BLOCKS AND ONTO ROCKS BY THE 1/2 MAN MAN PLANT.
March 10, 1999
WA · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
MACHINERY
410 Quarry Inc · Struck by... (Not Elsewhere Classified)
MECHANIC WA NOT AWARE OF THE PRESSURE ON THE SPRING ASSEMBLY RESULTING IN THE XXXX INTO HIS ABDOMEN.
1998 · 1 incident
October 15, 1998
WA · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
SLIP OR FALL OF PERSON
410 Quarry Inc · Caught in, under or between (Not Elsewhere Classified)
WAS WELDING ON EXCAVATOR. STOOD UP AND SLIPPED ON WET DECK, FELL OFF AND CAUGHT COVERALL SLEEVE ON WELDING GUN, INJURING SHOULDER.
1996 · 1 incident
August 6, 1996
WA · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
SLIP OR FALL OF PERSON
410 Quarry Inc · Fall from ladders
WHILE CLIMBING A FIXED LADDER HE LOST HIS HAND HOLD AND FELL 5-6 FEET TO GROUND.
1995 · 1 incident
410 Quarry Inc · Caught in, under or between (Not Elsewhere Classified)
EE WAS DRILLING, FLIPPED THE GUIDE OVER AND CAUGHT HIS FINGER BETWEEN THE GUIDE AND THE STOP.
1994 · 1 incident
410 Quarry Inc · Over-exertion in pulling or pushing objects
WHILE TIGHTENING BOLTS ON SCREEN, FELT PAIN IN LEFT WRIST.
1991 · 1 incident
February 5, 1991
WA · Metal/Non-Metal
haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver
POWERED HAULAGE
410 Quarry Inc · Struck against a moving object
EE WAS OPERATING A 980B LOADER AND THE ENGINE DIED CAUSING HIM TO REL BACKWARDS INTO AN OBJECT WITH REAR TIRE CAUSING HIM TO JERK BACKWARDS.
1989 · 1 incident
December 28, 1989
WA · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
POWERED HAULAGE
410 Quarry Inc · Caught in, under or between (Not Elsewhere Classified)
HE WAS OILING A DRY CHAIN AS IT WAS RUNNING. OPERATOR KICKED AT A BINDING CHAIN LINK. THE CHAIN CAUGHT HIS FOOT. HE HAD TO KICK UP IN THE AIR TO GET AT THE CHAIN AND NEVER SHOULD HAVE HAD HIS FOOT UP THERE.