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7/28/2019 Aggregate Extraction Primer
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A Primer on AggregateExtraction Mining in Utah
When is aggregate extractionconsidered mining under Utah
law?
- Mary Ann Wright, Associate Director Mining
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1975 Utah Mining statute
A mining industry is essential to theeconomic and physical well-being of thestate of Utah and the Nation.
It is necessary to alter the surface of theearth to extract minerals required by our
society, but this should be done in sucha way as to minimize undesirableeffects on the surroundings.
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History
Utah Mined Land Reclamation Act1975* IncludedIncluded sand and gravel as mining
MLRA was amended 1987
*ExcludedExcluded sand gravel and rockaggregate from mining definition
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1987 Legislative Session
Sometimes you deal with sand andgravel, House members, you get somebig rocks in there. And you kinda make
small ones out of them. This is theaggregate part of it.
Quote of Rep. Christensen, H.B. 311,Leg History, 1987
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SGRA Rulemaking
1997 Rulemaking to define SGRA terms1998 Rules became final
1999 Appealed by AGC to 3rd
DistrictCourt - Rulemaking upheld
2001 AGC Appealed to Supreme Court
Rulemaking upheld 12/2001
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Issues of AGC Appeal
Wanted definition by end use - what the endproduct is called, i.e. rock aggregate
Wanted definition by no greater intrinsicvalue than the material in which it iscontained argument
OGM did improper rulemaking
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Definitions
Associated with sand, graveldeposit /sedimentaryprocesses
-Excludes solid bedrockexposed at the surface
Rock Aggregate
2mm to 10mm deposited bysedimentary processes
Gravel
1/16mm to 2mm, deposited by
sedimentary processes
Sand
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SGRA exemptionexemption applies to
unconsolidated sand or graveland larger rocks associated
with sand or gravel
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So what is regulatedmining?
In regard to Sand. Gravel & Rock
Aggregate
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Mining Is When the SGRAOperator:
Is no longer mining unconsolidatedalluvial material
Is mining into the bedrock
Is using a pattern of explosives to minethe bedrock
Is no longer in rip-able material, and istherefore mining consolidated bedrock
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Lets look at some examples
Example #1Blasting intobedrock
Example #2Blasting is beingused in place of
ripping
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This site has extracted themajority of sand and gravel at
the site
They are currently using patternblasting on bedrock to achieve thesame/similar product as before
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This site is still extracting sandand gravel in some areas
But is also using ripping to mine thebedrock
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If mining is in the bedrock, it is regulated mining
OGM is clear on what is regulated
But, the issues of Sand Gravel RockAggregate extraction in Utah still remains
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This is what is exempt:
Sand extractionGravel extraction
Rock aggregate extraction whenassociated with a sand and graveldeposit
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At first glance, this exemptextraction looks much like
regulated mining
This is an example:
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2003 Legislation
Authorized a Task Force Study of theImpact of Gravel Pits
Purpose: to study the operations of
gravel pits in the state and their impacton the surrounding environment and
infrastructure
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The Legislative Task Forcestudied the issue of sand,
gravel and rock aggregateextraction
They studied the following:
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Issues of SGRANoise, lights and Operation times
Dust Air quality
Aesthetics
SafetyReal Estate values
Road wearWater quality
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Task Force findings:
Recommendation: Change the statuteto delete current exemption for SGRA
This change did not go forward sinceLegislators were not convinced of this
as the solution to the SGRA issues.
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