REP35525

• Permit No: M1978305
• IBM Index Class Name: Report
• Doc Date: 5/18/2004
• Doc Name: Environmental Assessment
• From: Nat. Park Service
• To: DMG
• Media Type: D
• Archive: No

I mostly short term because emissions would be r
range from negligible to minor adverse im
state and federal eadily dissipated b
standards. pacts. qtr quality would be exeVaitmg winds, and
Conclusion Pected to stay within
Under gltemative
the Dickerson Pit would restult in localized,
the Dickerson Pit would not expand. Continuin
adverse impacts on air quality, within the a mostly intermittent or short term,
mineral operation at the Dickerson Pit; routine g °perations at
recreational vehicle uses; nalysrs area. Cumulative im negligible to minor,
term, ne li and other land park operations; park, pacts from the existing
g Bible to minor, adverse i uses outside the commercial, and
would remain within state mPacts on air park are expected to r
implementation and federal standards, quality throughout the esult in short
of this alternative, No impairment to air park, and air
quali w quality
Impacts of tY ould result from
UnderAlternative B tp 9g' Proposed Action o
mineral ri Posed Action, the n Air Quality
ght of 33,18 acres, minus 1,22 a Dickerson Pit would
Pit would have the same t ores reserv expand 19,5 acres to its full
from activities such YPes of emissio ed as a visual buffer. The
as btastin , ns as under alternative A, includin eXpansion of the
°Peration of combustion en roes rushing, screenin ,
of hydrocarbon g use of the conveyowand t~~ks• and reclarr~ articulate matter
increases in a products used on site. This ex anon grading;
P rticulate matter durin Pansion would result in lo~ai zedaand sort term
and increased truck traffic durin
g ground-disturbing activities such as blastin
other emissions would be re g haulm
winds would be g °Perations. Mitigation measures to c°ngtrol dust and g
expected to quired and applied as described i
of mining operations dissipate emission n Tables 2.2 and
result in localized shortPProximately q2 s quickly out of the ar 2'3• Prevailing
and Ion Years, and the increase in ea' However, the duration
Cumulative f 9 term, negligibte to minor adverse~m rly production, would
Under mPacts pacts on air quality.
Alternative B Pro
those described under Posed Action, cumulative itr,
contribute to air alternative q. Outside pacts on air
and recreationalgvehi e' use;cand °lude routine f the minis quality would be similar to
maintenanceooferation, other activities that could
and prescribed fires would public recreational activities park roads;
contribute to irn also add to air such park- commercial,
maintenance, pacts on air qualit i p°tiution. Activities as motor boating, Natural
vehicle e Y n°tude various land d outside that park that
air quality in the park are fissions, and fires. AS a result ofevelopment ro~ w°uld
dissi expected thes p leas, road building and
gated by prevailin to be mostly short ter e activities, cum
would be expected g winds and ran m, because a ulative impacts on
to stay within state a e from negligible to missions would be readily
nd federal standards. inor adverse impacts. Air
Conclusion quatity
Under alternative
in disturbanc ~~ Praposed Action t
e to an additional 19, ~ he Dickerson pit would be
increased truck traffic associated 5 acres. A allows
term, with th dditionaf blasting and crushind to expand, resulting
negligible to minor, adverse im
impacts would be e expansion, would result in localized the pit, as welt as
similar to those pacts on air quality within the .short
minor, adverse impacts on air described Alternative anal to long
state and fed qualit under Ysis area. Cumulative
this alts eral standards. Y throughout the ar , a• with short ter
mauve. No impairment p k and air m. negligibte to
to air qualit quality would remain within
Y would result from impterpentation of
1 I
~~
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