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RR302368
Source: USGS Topographic Quadrangle, Glen Alien,".-."_ _-. /Virginia, 1963, PhotorevisecU 994.
£67040301 ETK/DGS-15-94
AR302369
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Aft302377
Ground Water PCB Data
MW-1upgradient
unfilteredfiltered
Phase I RI — Phase II RI Group's(fig/L) <|ig/L) (|i_s/L)
ND ND . ND- ND
MW-3Ddowngradient
unfilteredfiltered
ND ' - -1.9L .... ,r. ND_-__. -,..,_ ND
MW-3Bdowngradient
unfilteredfiltered
- 3.5L NDMT>
PCBs not detected any of the shallowwells
Development record indicate highturbidities
• PCBs in MW-3B could be due to mudrotary drilling.
ftR302378
Ground Water Beryllium DataWellNo.MW-I
MW-2
MW-3
MW-3B
MW-3D
MW-4
MW-5
MW-6
MW-8
MW-SD
SampleType
unfilteredfilteredunfiltered
filteredtmfiiteredfilteredunfilteredfilteredunfilteredfilteredunfilteredfilteredunfilteredfilteredunfiltered
filteredunfilteredfilteredunfilteredfiltered
fhaselRI-(ng/u
- - 1 2 . _NDNDND165
• - -----
:__..___ is •419 .. .
• ND
4:.. : - 2
- . -. ... -_-_:. - . . - - - - :
• • - . . . . - - - • - . _
-__ - . .
...__ . . ._.—— . - .
'• —— -
- - -.-:- •••-•
Phase II RI(M-S/D
...-.- 1.6' 1,4i.2
--- : ;ND
- 7.5.
6.7
- ND' - - ND
-NDND
- "" .. ND- 1.2 .
4. .: -. 3,4
-..,._ -,- X4
.---.-. : 1.7
8 \.ND
- 1.8..;•---?:- _"_ND
Group's(ng/u
. .... 2
1 - -
— - -
— - -
.
,
0.1ND0.70.4
— •.,...,
. .
-----"
— ."
——_--
Beryllium present in both upgradient andon-site wells at similar concentrations
RI/FS concluded that beryllium is naturallyoccurring and will not require remediation(FS/Pg.2-2Q) /
AR302379
\&HBurn Pit SiteI
ijjjwparison of Proposed Remedies
£P/i Criteria____USEPA Alternative | Group AlternativeOverall Protection ofjHyman Health and theWnvironment
Compliance with ARARS
Long-term Effectivenessand Permanence
Reduction of Toxiaty,Mobilifty, or VolumeThrough Treatment
Short-Term Effectiveness
implementability
Costs
State AcceptanceCommunity Acceptance
AR302383