Mining Incidents

SAN MANUEL PIT: 5 MSHA citations Metal/Non-Metal

Edinburg, Hidalgo County, TX  ·  Intermittent
MSHA Mine ID: 4105771

SAN MANUEL PIT has $769 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
1
Years on record
2026
Latest incident
Jul 2026
Compliance record
MSHA citations since 2025
5
citations
1
significant & substantial
$769
proposed penalties
$769
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2025
4
inspections on record
36
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: 36 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

SAN MANUEL PIT has $769 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.
$769
proposed penalties
$769
current assessed
$769
paid to date
$0
outstanding
5 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-31.
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.
20.0%
significant & substantial
0.0%
high negligence or reckless
20.0%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. TERRA FIRMA MATERIALS, L.L.C. 2024 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 9
2025 5
2024 3
Source: MSHA quarterly employment and production, updated weekly.

SAN MANUEL PIT sits in Hidalgo County, Texas, where the Census mining category is 1.8% 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.
Hidalgo County, Texas · Population 880,921
1.8%
Mining share of county employment
$52,281
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 4,229 0 0 0.0
2026 Q1 5,671 2 1 352.7
2025 Q4 4,482 0 0 0.0
2025 Q3 3,218 0 0 0.0
2025 Q2 3,563 3 0 842.0
2025 Q1 2,218 0 0 0.0
2024 Q4 2,400 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2026 · 1 incident

July 30, 2026 TX · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
TERRA FIRMA MATERIALS, L.L.C. · Over-exertion in lifting objects

07/30/26, Employee was operating an off-road truck when EE volunteered to shovel at the plant. After 15 minutes, EE reported lower back soreness, notified EE's supervisor, declined treatment, and went home. 08/04/26, EE reported lower back pain while operating the truck and was evaluated. MRI identified a herniated disc. Employee is pain-free and released without restrictions.