Signal Peak Silica of Carrizo has $9K in proposed MSHA penalties and $118 outstanding across 0 contested dockets, plus health sampling and the full incident record.
Watch this mine
Email me when a new MSHA incident is filed at Signal Peak Silica of Carrizo.
Fatalities
0
Total incidents
2
Years on record
2024–2025
Latest incident
Feb 2025
Compliance record
MSHA citations since 2024
47
citations
4
significant & substantial
$8,949
proposed penalties
$8,831
paid to date
99% of proposed penalties paid to date, a $118 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: 174 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Signal Peak Silica of Carrizo has $9K in proposed MSHA penalties and $118 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.
$9K
proposed penalties
$9K
current assessed
$9K
paid to date
$118
outstanding
45 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-11-20.
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.
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: 2025-08-26
50%
of limit-tested samples over the exposure limit
8
samples
6
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz63 over
Respirable dust, <.1mg2
Show the individual readings (8)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-02-05
Quartz, respirable, >1% Qtz
0.72
0.72
1.00
Truck Loader
2024-09-10
Quartz, respirable, >1% Qtz
3.12
0.79
3.95
Truck Loader
2024-09-10
Quartz, respirable, >1% Qtz
1.91
0.77
2.48
Truck Loader
2025-08-26
Quartz, respirable, >1% Qtz
0.56
0.7
0.80
Utility Man
2025-08-26
Respirable dust, <.1mg
0
Hand Loader
2025-08-26
Quartz, respirable, >1% Qtz
0.2
0.65
0.31
Dry Screen Plant Operator
2024-09-10
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-09-10
Quartz, respirable, >1% Qtz
0.23
0.94
0.24
Kiln/Dryer 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.
Signal Peak Silica of Carrizo recorded 1.82 reportable injury cases per 100 full-time workers in 2025.
Injury rate, 2025
ⓘ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.
1.82
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Texas, metal and nonmetal mining averaged 1.17 cases per 100 workers that year.
Year
total case rate
days-away
fatal
2025
1.82
0.00
0.000
2024
0.00
0.00
0.000
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
53
2025
47
2024
48
2023
8
Source: MSHA quarterly employment and production, updated weekly.
Signal Peak Silica of Carrizo sits in Dimmit County, Texas, where the Census mining category is 14.4% 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.
Dimmit County, Texas · Population 8,507
14.4%
Mining share of county employment
$33,409
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
An Employee was opening the door for the mineral separator (Rotex), the door handle sprung unexpectedly catching the tip of EE's right pinky finger between the handle and door structure causing a laceration that required 6 sutures and an open fracture to the tip of the finger.
Installing 4" conduit into MCC on site. Limited space for movement in electrical trailer prevented the necessary help to maneuver a pre-fab conduit piece into the gear. Employee lost control of the conduit piece, and it pinched EE's hand against the pre-cut hole it was being positioned into