Mining Incidents

Tierra Sagrada: 36 MSHA citations Metal/Non-Metal

AE Hiller & Sons, Inc · Surface
Controlled by Christopher W Hiller
Eagle Pass, Maverick County, TX  ·  Intermittent
MSHA Mine ID: 4105581

Tierra Sagrada has $7K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2021
36
citations
7
significant & substantial
$6,557
proposed penalties
$6,557
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2021
10
inspections on record
125
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: 125 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Tierra Sagrada has $7K in proposed MSHA penalties and $0 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
36 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-28.
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.
19.4%
significant & substantial
11.1%
high negligence or reckless
19.4%
reasonably likely or greater
11.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 88.9% moderate, 11.1% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. AE Hiller & Sons, Inc 2021 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 3
2024 1
2023 1
2022 2
2021 2
Source: MSHA quarterly employment and production, updated weekly.

Tierra Sagrada sits in Maverick County, Texas, where the Census mining category is 6.1% 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.
Maverick County, Texas · Population 57,770
6.1%
Mining share of county employment
$51,270
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 Q1 376 0 0 0.0
2025 Q4 267 23 4 86142.3
2025 Q3 315 1 0 3174.6
2025 Q2 345 0 0 0.0
2025 Q1 210 0 0 0.0
2024 Q4 186 0 0 0.0
2024 Q3 0 0 0
2024 Q2 0 0 0
Show 11 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 0 3 1
2023 Q4 150 0 0 0.0
2023 Q3 0 0 0
2023 Q2 180 1 0 5555.6
2023 Q1 0 0 0
2022 Q4 210 0 0 0.0
2022 Q3 234 0 0 0.0
2022 Q2 146 0 0 0.0
2022 Q1 210 0 0 0.0
2021 Q4 220 0 0 0.0
2021 Q3 37 7 1 189189.2

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.