HAYNES AGGREGATES - SEYMOUR LLC has $10K in proposed MSHA penalties and $151 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
1
Total incidents
2
Years on record
2020–2026
Latest incident
Aug 2026
Compliance record
MSHA citations since 2011
68
citations
17
significant & substantial
$10,124
proposed penalties
$9,973
paid to date
99% of proposed penalties paid to date, a $151 gap.
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: 384 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
HAYNES AGGREGATES - SEYMOUR LLC has $10K 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.
$10K
proposed penalties
$10K
current assessed
$10K
paid to date
$151
outstanding
56 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-06-25.
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.
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: 2025-03-26
0%
of limit-tested samples over the exposure limit
5
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg3
Quartz, respirable, >1% Qtz2
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-03-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-04-03
Respirable dust, <.1mg
0
Jackhammer Operator
2019-04-03
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-04-03
Quartz, respirable, >1% Qtz
0.63
1.27
0.50
Cleanup Man
2019-04-03
Quartz, respirable, >1% Qtz
0.46
Rotary Bucket Ex. 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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
15
2025
10
2024
8
2021
6
2020
8
2019
9
2014
14
2013
7
2012
8
2011
5
2010
0
Source: MSHA quarterly employment and production, updated weekly.
HAYNES AGGREGATES - SEYMOUR LLC sits in Naugatuck Valley Planning Region, Connecticut, 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.
Naugatuck Valley Planning Region, Connecticut · Population 452,303
0.0%
Mining share of county employment
$86,365
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