Mining Incidents

Alvarez Pit: 9 MSHA citations Metal/Non-Metal

Rio Grande Aggregates LLC · Surface
Controlled by Eli Camargo
Rio Grande City, Hidalgo County, TX  ·  Active
MSHA Mine ID: 4105841

Alvarez Pit has $1K in proposed MSHA penalties and $1K 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 2026
9
citations
0
significant & substantial
$1,208
proposed penalties
$0
paid to date
0% of proposed penalties paid to date, a $1,208 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2026
5
inspections on record
42
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: 42 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Alvarez Pit has $1K in proposed MSHA penalties and $1K 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.
$1K
proposed penalties
$1K
current assessed
$0
paid to date
$1K
outstanding
8 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-01-21.
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.
0.0%
significant & substantial
0.0%
high negligence or reckless
0.0%
reasonably likely or greater
22.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 11.1% low, 88.9% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Rio Grande Aggregates LLC 2025 to present
Source: MSHA controller and operator history, updated weekly.

Alvarez 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.

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.