REMEDIAL ACTION WORK PLAN OPERABLE UNIT 2, LANDFILL ...

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Table 6-1
Constructability Improvements
Design Comment Improvement Advantage
Hydrolo~ dcaign of Design inwrrcctly mwiels the Elimin& infihmtionUlns on Iss impact on scnsitiw
infiltrationbsaiis inmrectly Suk hydrology as Areas B thrOUgh F. Use a species ~, less cost by not
uses curve numtm (CN) of subsurface flOW. resign pcrimctcr drain to wllcct ccmstructingbasiis.
85 for kcsa B through F. runoffs arc probably much runoff, prevent run on, and
Basin excavation used as higherthanactualrunoffs. allow intdtration.
bcamwsourcefor earthworks Borrow can k made up from
oprations. rmncdiationsites and misting
cover excavation.
Wsign vckily of stormwater High velmity in unliicd Ehminatc chsnnel and Iawer instruction and
flow in the tra~idal ditches in sandy sOih will infWrationbasiis. msintcnancc costs.
@rnctcrditch (drawingC38, pJmblycmlcthe ditchLwforc
don U) arcgenerallyabout the end of the first~n.
3 feet ~ second.
Specifications 02050 Bun vegctatbnat the site Obtainfire marshallapproval I.mwcrcost and an alternative
Denwhion, 1.6 Burning using a pit burneror normal and burnvegetationat the site to mulching and disposing of
prohibitsburning oontrollcdburns. if convcnicntand #at unwantedvegetationseeds.
effcctivc.
Specifications 02050 D&mad ofw stumps,roots, Grind, stmkpile, and dispose kducc dditiOlld landfdlgas
D~litian, 3.7 Disposition LmUd&androtknwd inwith of vegetationas mulch on the andptcntial scttlcmcntof the
of Malerial and 3.8 Cban
up allows dispod of
the gcncrrdfill will probably
generatelandfillgss for many
clean subgradc of Area A.
Mcrnativcly, usx Offsitc
aver Surfaw during
decomposition. Easier to
vegetation fkmnclcsring and years after camplction of the diqmsol or a controlled bum compact fill without
grubbing O@OIIS into the proposed cover. Additionally, using an ovcrfim-air devim vegetation.
generalfill - vegetation is dficult to such as a pit burneror csrcful
compact and will probably control by burning in
cause settlement of the cover Windrowa.
Silk duringdccom~tion
Sptcificationr 02050 COmtruOdondcbrisiswlid Incoqmratefkbrisin withthe Eli- .s ptential legal
Denwlition, 3.7 Disposkion k., Ulihbk fm ImdfWing,and garMalfiu qMatkms and pbkmswith off-site disposal
Of biatd and 3.8 ~an tithe asmcolnaitcaslhc plalxundcrthc popadq. and diapaal cats.
UP rcquim rcmo~ dcbri~ -vatcd Ehfivm Aru A
=~tiy solid construction
debristim the aitc.
S’cij%atiom 02226 Site Cover willacttlc -placing Me@ bkranoc rcquirunults l&moving unncixawy and
-work - Gctural F4 WnUalml- S* of - ~ pa ~. iMp_ tolcrancm and
33 ~&n T&~w
rcqti a 0.1 foct atunwand
fill is not important tk
Iaymismttomeetthc
d A Uircmcnts should clarify
cmwtmcbn ex@ations.
Mowthcgradaa
the dmvings.
hownon minimumthich.
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