United States
Environmental Protection
Agency
Office of
Emergency and
Remedial Response
EPA/ROO/R03-S8/059
September 1988
Superfund
Record of Decision
Bendix Flight System, PA
-------
.50272. 101
REPORT DOCUMENTATION Tr.-""REPORT NO.
PAGE EPA/ROD/R03-88/059
2.
3. Reclpient.s Accession No.
.. Title .nd Subtitle
SUPERFUND RECORD OF DECISION
Bendix, PA
First Remedial Action - Final
7. Author(s)
So Report O.te
09/30/88
-
I.
_.
8. Performin. Or..niZition Rept. No.
9. Performin. O....niZition N.me .nd Addre..
10. Project/Task/Work Unit No.
-- -- --
---
11. ContllctCC) or GrantCG) No.
CC)
CG)
- -- ------.----- -.-
12. Sponsorin. Or.aniZition Name and Addre..
U.S. Environmental Protection
401 M Street, S.W.
Washington, D.C. 20460
13. Type of Report & Period Covered
Agency
800/000
1..
,
15. Supplementary Notes
II. Abstllct CLimit: 200 words)
The Bendix site is an aircraft instruments manufacturing plant located near the
Village of South Montrose, Bridgewater Township, Susquehanna county, Pennsylvania. The
60-acre site is situated in a sparsely populated area (approximately 500 people) atop a
topographic divide between the Meshoppen Creek and wyalusing Creek watersheds. Natural
ground water discharge areas exist east of the site in a wetlands area of Meshoppen
Creek, and west of the site at the headwaters of wyalusing Creek. South Montrose is
sOlely dependent on private ground water wells for water. The Bendix corporation.
(Bendix) acquired the parcels of land comprising the site in 1951 and 1952, and was
acquired by Allied corporation (Allied) in 1983, and finally merged into Allied in 1985;
Allied is the current owner of the property. From 1952 to 1958 industrial solvent
wastes were disposed of in a lagoon northeast of the plant, and for several years
similar wastes also were disposed of in a series of onsite small trenches east of the
plant. In addition, from the early 1950s until 1978, an earthen disposal pit installed
by Bendix was used for the disposal of water-soluble cutting oil and oil-contaminated
water from air compressors. The basin was drained of free liquids, backfilled, and
seeded in late 1978. Investigations performed by Bendix from 1984 through 1987
indicated that as a result of past disposal practices, contamination from subsurface
(see Attached Sheet)
17Rg~~'P~t ~rl~~c /13 f~'tiriPtors
Bendix, PA
First Remedial Action - Final
Contaminated Media: gw, soil
Key Contaminants: VOCs (TCE)
b. Identlfiers/Open.Ended T.rms
c. COSATI Field/Group
.. Availability Stat.m.nt
19. Security Class (This Report>
None
21. No. of Pales
103
----- ---
20. Security Class (This Pale)
None
22. Price
CS.. ANSI-Z39.18)
See In,structlons on Reverse
OPTIONAL FORM 272 (4-77\
(Formerly NTI>3S>
Oepartment of Commerce
-------
-
~
~A/ROD/R03-88/059
..endix, PA
First Remedial Action - Final
16.
ABSTRACT (continued)
soil has been leaching into the underlying ground water. Five source areas of
contamination have been identified at the site: a TCE storage tank area, the pet/trench
ar~a, an old landfill area, the area of a former solvent evaporation facility, and a
former drum storage area behind the plant building. Bendix is currently supplying
carbon filter units to users of affected wells. The primary contaminants of concern
affecting the ground water and soil are VOCs including TCE.
The selected remedial action for this site includes: soil vacuum extraction and soil
aeration; onsite ground water pump and treatment with air stripping; and treatment of
offsite ground water contamination through carbon adsorption at the well heads. The
estimated present worth cost for this remedial action is $4,481,000 with annual O&M
costs of $542,000.
-------
DEX:LARATI~ FOR THE REXDRD OF DEX:ISI~
Site Name and Location
Bendix Superfund Site
Bridgewater Township, South Montrose, Susquehanna County, Pennsylvania
Statement of Purpose
This decision document represents the selected remedial action for
this site developed in accordance with the Comprehensive Environmental
Respons.e, Compensation and Liabi li ty Act of 1983, as amended by the
Superfund Amendments and Reauthorization Act of 1986 (CERCLA), 42 U.S.C.
Section 9631 et seq., and to the extent practicable, the National Contingency
Plan, 43 C.F.R. Part 333.
Statement of Basis
This decision is based upon and documented in the contents of the
Administrative Record. The attached index identifies the itE!'OS which
comprise the Administrative Record. The Commonwealth of Pennsylvania has
reviewed, commented and concurred on this Record of Decision.
Description of the Selected Remedy
The selected remedy includes the use of two innovative technologies
which are to be applied to the soil contamination. These technologies
are soil vacuum extraction and soil aeration. In addition, groundwater
will be pumped and treated on-site; and off-site groundwater contamination
will be treated at each residential well head prior to human consumption
and use. These selected site remedies ensure compliance with all ARARs
and will be consistent, to the extent practicable, with those
specified herein.
Declaration
The selected remedy is protective of human health and environment,
attains Federal and State requirements that are applicable or relevant
and appropriate, and is cost-effective as set forth in Section 12l(d) of
CERCLA, 42 U.S.C. Section 962l(d), and Section 333.6 of the NCP. This
remedy satisfies the statutory preference as set forth in Section 12l(b)
of CERCLA, 42 U.S.C. Section 962l(b), for rE!'Oedies that E!'Oploy treatment
that reduces toxicity, mbili ty or vollJDe as a principal element. Finally,
it is deteDDined that this remedy utilizes permanent solutions and
alternative treatment technologies to the maximum extent practicable.
Because this remedy will result in hazardous substances remaining on-
site, a review will be conducted within five years after comnence:nent of
remedial action to ensure that this remedy continues to provide adequate
protection of human health and the enviroment. / / /'./
9-3c;-~ ~~~.
Date stan"ey L. s owski (3RM0)
Acting Regional Administrator
-------
SEX:TION
III.
Table of Contents
for
Decision Summary
I.
INTROOUCTION. . . . . . . . . . : . . . . . . . . . . . . . . . . . . . . . . . . . . .
II.
SITE NAME, LOCATION AND DESCRIPTION...............
SITE HISTORY......................................
IV.
M'ORCEr1ENT HISroRY...............................
V.
SITE CHARACTERISTICS..............................
A. GEOLOGY,!HYDROLOGY..............................
B. EXTENT OF CONTAMINATION........................
L East Side
2. West Side
C. SUMMARY OF SITE RISKS..........................
VI. COMMUNITY RELATIONS HISroRY.......................
VII.
VIII.
XII.
REMEDIAL ALTERNATIVE OBJECTIVES...................
EVALUATION OF REMEDIAL ALTERNATIVES...............
IX.
DESCRIPTION OF ARARs..............................
X.
COMPARATIVE ANALYSIS OF ALTERNATIVES............ .
XI.
DOCUMENTATION OF SIGNIFICANT CHANGES..............
SELECTED REMEDIAL ALTERNATIVE.....................
A. Description AND PERFORMANCE GOALS..............
B. STATn1ENl' OF FINDINGS REGARDING WETLANDS
.
AND FLOODPLAINS................................
XI I I. STATUroRY DETERMINATIONS...........................
APPENDIX A. - JUSTIFICATION FOR SELECTING 1~~ Wb
VOCs IN SOIL AS CLEANUP GOAL
APPENDIX B. - SUf+1ARY OF ANALYTICAL DATA
APPENDIX C. - RESPONSIVENESS SUMMARY
APPENDIX D. - ADiINISTRATIVE RECORD
,'-
p~
1
1
1
2
2
2
8
10
11
11
12
19
2~
24
24
24
24
25
-------
1
I.
Introduction
Bendix Flight Systems Division of the Allied-Signal Corporation
manufactures aircraft instruments on a 60-acre site in Bridgewater
Township, Susquehanna County, Pennsylvania. From 1952 to 1978, solvent
wastes were dumped for disposal onto the ground within the plant boundaries.
From 1984 through 1987, Bendix performed various investigations and studies
regarding the site contamination and concluded that as a result of the
company's past disposal practices both soil and groundwater contamination
had occurred. On-site soils cOntain significant levels of several volatile
organic solvents which have leached into the groundwater and contaminated
several off-site residential wells. Initially, Bendix provided bottled
water to these residents and has subsequently installed carbon filter
adsorption units on each affected well. Bendix signed a Consent Order
with PADER in December 1987, which requires Bendix to: continue supplying
carbon filter units to all those affected by groundwater contamination
resulting from the Bendix plant; continue to monitor the affected wells
and the groundwater plume migration; and complete a Remedial Investigation
and Feasibility Study (RI/FS) for the Bendix Site. The RI/FS for this
Site was completed and sutmitted to EPA and PADER in July 1988. PADER
has assumed the lead for oversight of the Superfund RI/FS activities at
this Site.
II.
Site Name, Location, and Description
The Bendix Site consists of approximately 60 acres of land in and
near the Village of South Montrose, Bridgewater Township, Susquehanna
County, Pennsylvania (see Figures 1 and 2). This site is situated atop
a narrow, north to south-trending topographic divide between the Meshoppen
Creek and Wyalusing Creek watersheds. Natural groundwater discharge
areas occur in a swampy low swale in the Meshoppen Creek watershed east
of and at the headwaters of the south branch of Wya1using Creek west of
the Site. The area within a 3-md1e radius of the site is sparsely
populated with the only concentrated areas being Montrose and South
Montrose. t-k)ntrose is served by a municipal supply which draws surface
water from Lake Montrose. The town of South Montrose (population = 500)
is solely dependent on private groundwater wells for water.
III.
Site History
The Bendix manufacturing facility at the site is engaged in the
production of aircraft instrumentation. For RCRA purposes this facility
is identified as Small Generator Status and recycles approximately 1000
pounds of solvent per month by steam evaporaUon.
The Bendix Corporation, previously Bendix Aviation Corporation,
acquired the parcels of land comprising the site during the years 1951
and 1952. Although the results of a title search indicate that The Bendix
Corporation is the owner of record for all of the site parcels, corporate
information indicates that The Bendix Corporation was acquired by Allied
Corporation on January 31, 1983 and merged into Allied Corporation in
April 1985. This merger resulted in Allied Corporation being the current
owner of this property.
.,-
-------
ThCl ERM Group
..
N
-
r
.,-
-------
1M ER" Cifoup
~J
4;
I
~
o
... II
...... ......
;.
-
.-.
10
l
~
Q
r~~-... .
.........~
rI
~
","
~
~
./
~
~
rD:J
LIEGIENO
-....- sa.8....
----CuMt1
figure 2
facility ~Ians th Monlrose
, . Bendix, ou
-----
:="'iiL.... --~~
~~~~:;:~
\t C'n'" ." -~.~~----
- -..-=--2 -~:..-:---
'" =::..-~---=. ~-~
- --a-~ ..-
,.. J ~ .-=::':r: - -::"'"0 ' .0-
".'" ~-C~~~~
0- -=-- . ~---=-
~-= ~-:~-, .
- =:'"..::~~,
...~ ,
'-';\
'.
LA Sl009
.
N
o 1011 MIl
I
Sc... ... ,..
400
800
.
Lti11
-------
2
According to infonnation provided by Bendix, from approximately 1952
to 1958, industrial wastes of unknown type were disposed of in a lagoon
northeast of the plant near an existing sewage treatment plant. In
addition, for a number of years (exact dates unknown), such wastes also
were disposed of in a series of small trenches just east of the existing
security fence. When closed, the trenches were graded and seeded to .
conform to the natural topography. There is no present surface indication
of the prior jisposal operation. From the early 1950's until 1978, an
earthen disposal pit installed by Bendix and located east of the trench
area (approximately 10 feet in diameter) was used for the disposal of
water soluble cutting oil and oil contaminated water from air compressors.
The basin was drained of free liquids, backfilled and seeded in late
1978 so that there is no surface indication of prior disposal operations.
No records exist on any of these sites to indicate the amount or all
the types of substances disposed of at these locations. However, the
results of an April 1982 groundwater quality assessment by Chester
Engineers indicate the presence at this Site of various organic
chemicals normally associated with hazardous waste.
The Bendix Site was proposed for inclusion on the National Priority
List (NPL) in September 1985 and promulgated in June 1987. The HRS for
this site was 33.74 which was based primarily on release of hazardous
substances to groundwater beneath this Site.
Enforcement History
Past disposal practices (involving hazardous substances which
occurred between 1952 through 1958) have resulted in groundwater and soil
contamination at this Site. On October 11, 1985 EPA sent the Bendix
facility in South Montrose a CERCLA Section 104(e) information request
letter to which L,e f3cility responded. On March 5, 1986, EPA sent the
Bendix facility a letter informing the facility that it was a Potentially
Responsible Party (PRP) and liable for the contamination at this site.
In addition, this letter sought Bendix participation in the RIfFS
process. Bendix agreed to conduct an RIfFS at this Site and entered into
a Consent Order and Agreement for the performance of a RIfFS with PADER.
IV.
v.
Site Characteristics
A.
Geology /Hydrogeology
1.
Site Geology
.
The results of the RI drilling program show that the unconsoli-
dated overburden at the site consist principally of a brown silt and
gravel till. Glacial till was deposited directly from glacial ice without
significant sorting by water. This process creates a poorly sorted, dense
sediment with generally low permeability. At the study site, the till
varies in thickness from south to north from fourteen feet to over seventy
feet, and from west to east from nineteen feet to over seventy feet.
,'"
-------
- 3 -
The west to east (A-A' and B-B') geologic cross section in Figures 3 and.
4 show the stratigraphic relationship of the till and underlying bedrock
across the center and the northern boundary of the site.
In the southwestern section of the site, the till consists of fi~,
dense sand and silt. Northward and eastward, it becomes a hard silt and
gravel till with varying amounts of clay and little sand. East of the
plant buildings, the boring logs and backhoe pits indicate that the
dense silt and gravel till is overlain by a zone of silt, subrounded
gravel, and numerous large, flat sandstone chunks. This zone is from
about two to eight feet in depth in the fODDer pit/trench area. This unit
is peDDeable and transmits ground water and appears to pinch out eastward.
It appears that the shallow loose silt and gravel may persist beneath
some of the plant area.
West of the plant buildings, in the parking lot area, a ten-foot
thick section of loose gravel and organic-rich clay and silt was encountered
at the land surface overlying the till unit. This zone consists of
gravel fill installed under the parking lot and overlying stream and marsh
sediments fran the south branch of the Wyalusing Creek for which the
headwaters originally occurred in this area. During parking lot construction,
the creek was filled. The headwaters now arise west of the parking lot,
adjacent to the village ballfield. The base of this fill unit is presently
saturated. Northward and westward, this unit thins. Eastward, the gravel
fill quickly pitches out at the surfaces; however; a loose silt and gravel
unit is present under the plant site continuing westward and southward
beneath the flat plant site area. This unit is about eight feet thick
and may represent stream alluvium deposits in this area.
The greenish to greyish sandstone and grey to red siltstone and shale
layers of the New Milford Formation were encountered during the drilling
of the bedrock wells. This interlayered bedrock sequence was well cemented,
well sorted, and fi~ except for the upper thirty feet, which was highly
weathered and incanpetent. The first saturated zone in Wells No. 84-9,
84-11, and 84-12 were 2l~, 135, and l6~ feet deep and yielded only small
volunes of water, probably less than 1 gpn. An apparent vertical fracture
was penetrated in Well No. 84-l~. The fracture was filled with loosely
consolidated weathered rock set in a clay and silt matrix, and the potential
water yield appeared to be several gallons per minute.
Figure 5 shows the configuration of the bedrock surface beneath the
glacial deposits. As shown, a bedrock high slopes gently south to north
beneath the center of the site, following the trend of the previously
described surface topographic divide. East ~d west of the bedrock high,
two symmetric swales are present, likely representing erosional surfaces
foDned by the headwaters of two pre-glacial streams separated by the
topographic di vide. Along the southern boundary of the plant, a bedrock
outcrop is present with little glacial overburden evident. To the southwest
beneath the Village of South Montrose, little or no glacial overburden is
present, with bedrock outcrops observed in some house basements.
-------
Ed
FIGURE 3
CROSS-SECTION
GEOLOG Ie.
A-A'
Wesl
b
Q,
~
<.:.
~
~
c.;-
o
"
....
<:) o~
~ ,
o "-
, b
'. "-
b "-
l.. ,
o "-
'v .., ~
'--'J 1.."':)' Il,;
.;) "-
o ,v,
, ,->""
A
I ferred)
\;here n
Concentration
Volatile Organic
{AU9US t,l 9~:84
flovember,
-4
:::r
IQ
rn
;N
:I
Q
...
o
c
~
last
A'
-
-------
hJ
FIGURE - 4
GEOLOGIC CROSS-SECTION B-B'
-i
::r
IQ
m
~
::t
C\
.....
a
c
~
l !c-vdllUIl
~t~ ~ t
(I "L'l )
B
flu
1/0.1 Pono
"'OJ-I
UI\-)
OILi I.Jnlltill
?l;()
i:J. .'
!i.t-( ,.:.",; ~" '::'~:'''::!o6 \, :J'~:;;j'~:- '. .~A ~+7~:':.:l', ...., A, I~J
. ";:""::-1~~.~.~I""'."1'''' t-;-..h,','~"~"' ':,;.,.....'~ ;."'06" .':~..,-'" lJ-I UI\-4
~. :;'6~"'i..t......~n...;",,- ~ .f..~.'~.J""'~;~.' :..',' .I, .~..::<~.... ":,.,,..v;..\1k...;~:......... --
.: ,.: r-~ f."!:~;~.~.J. .~"l.\:' cr~.fi":~'~.J"I>:"t.;< : ~ d."""...~..~~....~..?~I~T~j~.i';~ ""'''','', ,:: ~
"'.' .l--'~..: .,',"I~"""'.''''r.-i.~~. .;,/:-":.. "1 ~....\.:~..'i::~~.~'."'~":":7:~' ...'.~' 0
-;1:- ~ '..:'.-,"6:;>.,. ""."~L,"'..A" .,...1.,- ,:'/i. ~'A."'~'~~,\""::'''A~.'' ....~.:---I.;...4." 0 '~:i..."
";~ """,'-. , .'," ~ LI ~. "1 ~. . ".. 11-.. ,-,: :/':; L ," ~""\ . 't' . ,'.\. ,.._~~-t . .t':........ l~' '~I t't y' ~~--"""".1 ~ .'.: ~.~'. ~.:, 0 ~ ,tA l .
"A~' :.. ,. .";..'.,'.I'.':f":::":'J.: i.'.,',p< ',:':16'p'~ J:' ,~I,:"'i'i-'h.:-".i';"...~lf"I;~'~;,l~",:." ',;,4560ppb .' 0 0 . '. :..
..'. ,. ',!;. ."'-~' ~"":~.,' ./,..;'t":.. .. ..'...I:.i~\"'~"'. )'" "';; I f""~:'.'11':"'c,..'\./ .'f"" ..i~~', 4)
,. ';'1 '':''':':If..,,\';,,.':''.' i.' ~JI.. '..12ppb. ,~,..,;,,'~..- '.:..';'.':./A::':\:io""" f?'13360PPb,_\~t. ,~:W':'i"I'r. 0
'~j~;. ~;/::~:~'t-~-~;\tif..;;(jZ' i~~~::~:l. ~.,':::':~~~i':~ .j /.:V>'~;+:~:J~~J.~~~}:~;~~;::.J~~d~;,;~:~/:.&1~~ ~:f;~~~f~:~~~~..t;/:-O( =,. 0.. v '0"".' ,
','.'. .Co."...:/." """,,,"'" ..'..}, '. '.;" JS2PPb".\':"""li:,';; '~'Vr'!';' ..,,'. ':''''''\t:'i~.'"~,, U. ';'.R,;,'{;j.J":~" .,..',.,;~,.,;'.' J '1~ '" ,
. \: ';';' '~'. :~':4;'r.',:":" .. .;>'~:.I.,,,, .';'~ 'V:' '~:"I~: ,663ppbl. ,"::'I,,~ ~'/1 ;.';'I,;~ ,::~">::,::"":\~~':'h;;::~. ~"~"~'~~:'~~;~:'~' ..: . ," ", ~A""':'::"':-::-
~'.':: -'~ .:, "::'.,.'.'" ,;--, .:,',,".; ....,,;\:.,j~ "t:-.::.t',:-.'>'!~;'~}':;",,':. ''',1.::.::''~':'' . . .' ~. i2Y:'pb"- \..~;:';'''.I~'..:'.:'IB(Oppb "'~-
iii"" /"""\'::"~';""':-;I.;.,:.,..t.~.,..:. .:..,~~...~~~f}.;l~"'!~':'''~',;,;:'':''.'' -. '. - "~19~bA.~."..,:'t;:.....,'.\<2JOPPb .'. ...;.',
i[ /.: ;"\/'~i~'\~';~;>?~~.:.:~;)tt?>:"(:\.!~,.:.::.;,~ ;.l~';!)~_\" ", ':'. .'. <. ... , . : ');;:~0~j.~<::,;,:'L:,;..","'\;':> ;:~~;..'.::'<:'A' ~
"Y.',~' ":"A'. .'r"'~""'\". ,....t. . "~I.~";'~'~'~):'!''''(.'';';t".i".,-. - )"y;i'.'\":"
~, /.' :,;:,,'~", . LEGEND' . "\"'~'~:A";;~'~';.; h./:~':' :':~rf:,~t:'..,:;\
I.~ o~pptl '<,t.'..I'-"";.-.', ':'! - ,~~'.:".i-",,:'"
'..' Spph ~ Silty And Gravelly Till .' ,...'t!:,~:..:.".> ..r,..f.:\),i:.,
., ,. . '.' ,:, 'i.':'" ....,,1' ,~~.\ '.
~ Silt, SdnG. Grdvel, S..lnLlstone C!ouillers ':'\r(~\.. :~):t;;1-::;~J~:;~'~
~ ,I..." "" 1/.,'
D ~~'~::.t~f~:le - Shallow Gldcial flow (OIllPonen't.~ ~,l.~~~'~~~',
.. P.. - . . -~-27PPb""
-.- 1l'!omelrIC ~urtJce - Deep 1.IJcIJI flow CufilpOflt:>nl . .. ..........- '
- Bedrock/Glacial OverburLien Uncontofllllty '"
i!.1
II
1.:11
IUli
1,1.
I.d
u
I
IOu'
cou'
I
jlll!
II.". Illm (J I :.,'.1 I,'
( '~i'P"IJ' ,,,,..I L' )
~Ie 11 Or Bor i ng
SJlurJted Zone
Scrt'i'Iit'Li Illli'rvJ I Wi lh T.Il.11
Vo I..l i Ie Or~:IIIIC Concelllr.1I ion
{,~ ..1'1',1 ,l'J:'.'~ .
.. '''''\101,''1 ,II"
,I,',
.,
-------
4
2.
Hydrogeology
A.
Groundwater
Ground water at the Site occurs in two principal flow systems:
a local system in the glacial overburden and a regional unconfined system
in the fractures, joints, and bedding planes of the underlying bedrock.
Flow in both systems is directed eastward and westward from the topographic
divide. The installation of the new monitoring wells and the evaluation
of the previously existing data have resulted in the definition of two
apparent flow components in the glacial till system:
1. A shallow flow component is present in the overburden
throughout the site. This flow component occurs primarily in the gravel
fill/alluvium in the western part of the site, and in the shallow loose
silt and gravel unit in the eastern portion of the site. This flow component
is perched atop the denser underlying till in the central and eastern
portions of the site. Beneath the west parking lot, this component appears
to be directly hydraulically connected with the deeper flow component
described below.
2. A deeper flow component is present in the till at the
bedrock surface. The water within this zone appears to be confined to
semi-confined and flows along the bedrock surface.
The basic hydrogeologic characteristics of each flow system are as
follows :
1.
Glacial Till Flow System
ShallCM CaDponent
The shallow flow component occurs in the gravel fill beneath
the west parking lot and in the shallow loose alluvium, silt and gravel
unit in the central and eastern sections of the site. A groundwater
contour map for this component is shown in Figure 6. This map shows that
flow is basically to the east and west from the surface divide beneath the
plant area, suggesting that control is topographic. To the east, this
system discharges to the swampy waters of the Meshoppen Creek watershed.
To the west, flow proceeds under the parking lot to discharge to the
headwaters of the South Branch of wyalusing Creek.
.
In the fill beneath the parking lot, highly saturated conditions
are present. This is to be expected as this was the natural discharge
area for the shallow groundwater, and the fill beneath the parking lot is
permeable gravel. It is likely that perennial recharge from the No. 1
Pond contributes additional recharge to the parking lot area. On the west.
edge of the parking lot no water was encountered in the shallow overburden
during drilling. This indicates that shallow perched water conditions may
be seasonal in this area. In the central and eastern sections of the
-------
-i
=r
fO
m
AJ
3
Ct
...
o
C
'1:J
()
N
',-
,
,
--...:..:.
- - .
1'--
I
\"A"~
"
I :.-:'~;..
'6 .
, ~..
. - <~
~
, .-
\-~ -.. ..
- . .
--
Ed
o ~:.~~:DO"'b"'.'. .,II."M, ".4--:~'_.
~ Overburden Well-Chester [nglneers, 1~91.1'/il" ' -. -""--..
191.14 G,-ound Wolter [Ievdt lon- .,--.-:::::,=::
~ Ground Wolter lontour (Ddshed Where Inferred)
.. Direction of Ground ~dter flow
-. - Inter'"l ttent Wolter Uf South Brdnch
WYdluSlng Creek
'" 'u"'" "0""'
'~ 0 "0, J ..,..
:-:-:-- - '.
o
100
':llt) feel
. .
ItORIIOlITAl SCALF
(APPROX I ~'A TE )
, I,'
-------
--
- 5 -
property, the backhoe trench installation indicated that very little water
was present in the loose silt and gravel unit. Thus, it appears that the
shallow flow component in these areas is a seasonally perched conditlon.
Deep Calp:>nent
The deep glacial till flow component occurs at the till/ bedrock
interface. It was observed as a slightly wet zone in the bottom few feet
of the deep wells. This flow is eastward and northwestward from the divide
beneath the plant site. However, comparison of this map with the top of
bedrock contours (Figure 5) shows that flow is down the bedrock surface
slope instead of in the direction of the land surface slope (Figure 7).
The piezometric levels east of the plant area are very deep,
indicating that flow is essentially unconfined in that area. To the
west, however, the piezometric levels are well above the tops of the
screens, indicating confined conditions. Discharge to the east is to the
Meshoppen Creek watershed. To the west, where the flow is into the bedrock
surface swale, the ultimate discharge area is uncertain. However, it may
be that most of this water ultimately leaks slowly downward into the bedrock.
2.
Bedrock Flow System
Groundwater in the bedrock aquifer occurs under unconfined
conditions, with a thick sequence of unsaturated rock separating the deep
glacial flow component from the bedrock system water table. East of the
surface divide, ground water flows toward the east, likely discharging to
the surface waters of the Meshoppen Creek watershed. West of the surface
divide, the ground water flows principally to the southwest toward discharge
in the wyalusing Creek watershed.
The configuration of the bedrock system water table is shown in
Figure 8. East of the topographic divide, ground water flow is directed
by a narrow, southwest-trending "swale" in the groundwater table,
suggesting that flow in this area is controlled by a southwest-trending
fracture.
The water table and ground water quality results strongly suggest
that this fracture may trend southwestward. The possible existence of such
a fracture has been postulated on the basis of aerial photograph
interpretation. The transmissivity along this fracture appears to be
higher than that of the surrounding rock, thus essentially acting as a
"drain" toward the southwest. This effect may be exaggerated by increased
recharge supplied to the bedrock system by the No. 1 Pond water.
Principal ground water recharge to the bedrock flow system likely
occurs on the ridge top south of the Bendix plant where bedrock is at or
near the land surface. Ho\otilever, on-site condi tions suggest that the ti 11
is well-drained enough to contribute some recharge to the bedrock as well.
Thus, the saturated top of bedrock zone in the glacial till leaks slowly
downward by unsaturated flow to the underlying water table.
-------
FIGURE 5.
BEDROCK SURFACE CONFIGURATION
.0
N
'-'~
84 -12 '----.:
14 /
191 ~
LEGEND ~ /~o
. Bedrock Well-fRM, 1984 ~
~ -----..:::::::: PUlit I ( II
V Deep Overburden Well-fRM, 19114 --~.~ --.
. Shdllow Boring-fRM. 19U4-.~:--- -
tD Deep Boring-fRM, 19114 ~
"""':', .
~ Overburden We II-Chester fngineers, 19U2 . ,
III rh ickness of G I", i d I Till
174 Bedrock f levdtion
IZO
---- BedrOCk [Ievdtion Contour
/6;
V
.'1 pu"" -GuS(
"01 "ILL
,
\
o
100
-4
=r
jQ
rn
~
::l
C\
...
o
c
~
1'11'1
\...A...t"
--~~:-. -
I
~
IIOR' lorn AL ~CI\L f
(APPROX lI.tA IE )
- .
.".
I ".-: :
, -
'. !--.
, -
-'-
\ -
- .
- . .
--
~ r I'u,..p "0"'.'
~"o '-Ill
-
lOO feet
-------
FIGURE 7
GROUND WATER CONTOUR MAP
DEEP GLACIAL FLOW COMPONENT
SEPTEMBER 17,198Q
-6
N
, 100.1 '0100
"
'.
\..A,..'"
'--. -fa::..:...
I ~.
I
- -
I ~-
0.. ....-- ..
\. -
\ ...
\
LEGEND
84-1 <>- Deep Overburden Well-£RH.
1toI-~~ Overburden Well-Chester' £ngin~en.
1981-1 ~tl2
. -~..~._--.
Ed
121.32 Ground Wdter £Ievdt,on
~ Ground Wdter Contour (Odshed Where
.. Direction of Ground Wdter flow
HOR IIOIlTAl ~(Al [
(APPROXINATE )
o
100
200 F~~l
Inferred)
I,
---0004
=:T
40
rn
~
:I
C\
...
o
c
~
~
- -
- .
-. -
--
I I,'
.,
-------
- 6 -
3. Relationship of Flow Systems
The complexity of the groundwater flow at the Site is
illustrated by the differences in flow directions in the three systems:
- The shallow glacial component flows in the direction
of slope of the land surface topography.
- The deep glacial component flows along the slope of
the bedrock surface.
- The bedrock system flows generally down the land
surface topography, but with a major influence from
bedrock fracturing.
This indicates that very limited hydraulic connection is present
among the systems. If such vertical connection were strong, the flow pattern
in each succeedingly deeper system would reflect that of the system above.
A more detailed assessment of water level measurements also indicates this
condition. East of the surface topographic divide, two factors indicate
that the glacial till is not fully saturated:
- The piezometric levels in the deep glacial flow
component are much deeper than in the wells in the
shallow glacial flow component (Figures 6 and 7).
- The shallow glacial flow component responded promptly
to an early November 1984 recharge event, with water
levels up one to four feet from previous levels. However,
the top of bedrock water levels continued to decline,
indicating lack of recharge from above.
Thus, there is little or no hydraulic connection between the
deep and shallow glacial flow components in this area. The shallow flow
component is a seasonal perched condition from which only very slight
downward discharge occurs.
West of the divide, several factors indicate that the full
thickness of the glacial till is saturated beneath the parking lot fill:
- In response to early November 1984 recharge, water
levels in top of bedrock rose significantly.
- The piezometric levels in the deep wells rose above
the bottom elevations of the* shallow piezometers.
- Flow in the deep component is semi-confined.
-------
-
7
This full saturation was.not observable during drilling, as the
dense till contains very little water even under saturated conditions.
However, the apparent saturation in this area is likely due to the perennial
recharge available from the parking lot fill and likely from the No.1.
Pond leakage as well. A mounding effect in the piezometric surface of the
deep flow component near the No.1 Pond can be seen in Figure 4. This
fully saturated condition is limited to the parking lot area.
Although vertical hydraulic connection aPPears to exist between the
shallow and deep overburden beneath the parking lot, the principal flow
vector is westward, laterally through the parking lot fill. The groundwater
water quality analyses substantiates the fact that the actual vertical
flow volune is very limited in this area. As previously noted, the deep
unconfined water table in the bedrock aquifer indicates that there is no
direct hydraulic connection with the deep glacial flow component. However,
it is likely that slow downward leakage by unsaturated flow occurs to the
bedrock system.
B.
Surface Water
This facility is situated on an elevated parcel which separate
the headwater areas of Meshoppen Creek and the South Branch Wyalusing Creek.
The sanitary wastewater treatment system effluent discharges from the Number
2 Pond via a weir to natural channel which terminates in a swamp or wetland.
Flow from the swamp constitutes the headwater of Meshoppen Creek. An unnamed
farm pond to the west of the facility constitutes the headwaters of the
South Branch Wyalusing Creek. The flow fran the farm pond has been diverted
into a culvert where the open channel flowed through what is now a filled
and paved parking area. The approximate enclosed flow route is indicated
in Figure 8 as well as the orientation of the headwaters of Meshoppe Creek.
N\Dber2Pond
The Number 2 Pond serves as the final polishing step in the
sani tary wastewater treatment system. The channel leading fram the weir
to the wetland consists rocky channel with a length of approximately 200
feet and a dr in elevation of 30-40 feet from the pond outfall weir to the
wetland. This channel is interested by a gas pipeline right of way (Rem).
From the pipeline RCM to the wetland, the water flowed through the alder
fringe of the wetland.
WetlaDds - Headwater of Heshoppen Creek
The wetland, which receives the ou~flow of the Number 2 Pond,
consists of two distinct areas, namely an island of trees and shrubs
(approximate size of 2 acres) surrounded by an approximate 20 acre area
dominated by cattails. The area appears to have been a hemlock forest
which may have been harvested in the past.
-------
, Pu"''' "(J"~l
~~!? ,.0 J -l a ,
FIGURE a
GROUND WATER CONTOUR MAP
BEDROCK SYSTEM - OCTOBER 20,1984
0-
N
110.1 '0"0
r -J! Ol 0 l AND' III
'0 Ll-
(:~:;:~~~ei/'~t, V.I. !~.. W"""'~-'--=-;--)
SIOUIi( UUS < : ''...:::..') ~OIlD i.
II . I I~~~~:~:;J:~:':" "''''-",
PLANT /' , ./ 1!4-11 '-,
/" 1 t :r:i:;~'I\U'(I::I.OJ"I':' i 4.66
/ OF"CE ,. "
~~ . ~ ~I i\ \ \ \!
~~ r'-U8:i.l;~'I--,--.J \ ,,,i
~--=--=c:~~!l I" t.\~ \. ~ t; \~, J :~"; :;~~(
LfGfND -~-- ."8l
84 -9 --- -. -'. Ie ."40
59.87. Bedrock Well dnd Wdler £Ievdtion ------------- -
100- Ground Wdler Contour (Odshed Where Inferred)
III'Cali I'll't
84-9
59.87 .
"-
,
--
. -
o
@
HORI1o~rAL ~(ALf
(APPHOX II'IA If )
IlI,j
--4
=r
jQ
m
~
:t
Q
...
o
c:
~
~"'A"'"
~
..
.
I ..
I . -:-~ ~
. -
.
, -.
- -.
, -
, -
- . .
--
--,It I feet
-------
--
8
Table 1, which lists ERM observed plant species as well as the FWS
indicator status confirms the mapping of the area as a wetland. As a note
of interest, the USGS Montrose West Quadrangles (photo revised 1978) indicates
the eastern portion of the site as being open water which conflicts wi th the
FWS delineation as shown in Figure 3. Observations from both transect vantage
points indicated that the area mapped as open water by the USGS supported a
dense cattail population, indicating that the area has been under wetland
rather than open water conditions for at least several growing seasons.
4.
South Branch Wyalusing Creek Headwaters
The headwaters of the South Branch Wyalusing Creek are the outfall
of the farm pond located to the west of the Number 1 Pond (see Figure 2).
The flow from this pond flows through a culvert as the water passes under the
filled and paved parking area. The culvert discharge is directed through a
second culvert which carries the water under the abandoned Lehigh Valley
Railroad ROW. Downstream of this railroad ROW, the flow follows a natural
channel. Near the intersection with LR 57009 (as identified in Figure 2)
the flow pattern becomes braided and supports a wetland (approximately
one-quarter acre based on field observation) consisting of two small stands
of cattail.
B.
Extent of Contamination
1.
Soil Contamination
soils.
so ils .
The primary source of contamination at the site is subsurface
This contamination has leached out into the groundwater underlying these
The following lists the source areas of contamination:
- the area of the ~E storage tank,
- the formerly used pit/trench area,
- the old landfill area,
- the area of a fo~r solvent evaporation facility, and
- a fo~r drum storage area directly behind the plant
building.
The soils investigations indicated that volatile organics are
present in the shallow zone of ground water flow in the source areas at the
plant, both in the vapor and water phases, apd adsorbed on the soil (see
Figure 9). The contamination decreases quickly with depth, and the restriction
of high concentrations to the upper weathered zone in the potential source
-------
FIGURE 9
ISOCONCENTRATION MAP -. TOTAL VOLATILE ORGANICS
IN SHALLOW GLACIAL COMPONENT, AUGUST, 1984
()
N
100
-
-
'AlvIOuS ,OCOI.OII 0'
SOt vI'" OIS"llaIlOll
SYSII"-
,
'~:~.
- --- --===--=----
--------.
- --- - - -=:::::::-----
--- ----.
--- --
- ----:.::::::::----
.
I
-- i
'-.~ _/
L~--- f
.----. -""
HW.J It)
liD
1 ~tJ"'P "ulJ~(
"0 , .(It
LEGEND
PIJ'H Ie .00"0
----
84.8 0 ~h.lliow Uverbu,-den We I ,- [RI1. 19S4
"101.1«> Ove.bun1l'n Well.(heHcr [n9ineen.. 19tH.19t1t'
~ lsoconcentration line.ppb
(Dashed Where Inferred)
8..1~ Deep Overburden Well-ERH.
1984
'ltHlIlf p...(
~"""P
--4&~' -
I ..::~.
I ~,..
'. .
&
._~ .
,- -
\
,
,
'\
~. p",..., Hlh""
'" . 0 ftO , ,,' II
~.~
~
--
,
- -
o
I JIll
~\JCI feet
.
tlOR 110lif Al ~rAI. F
(APPRO)(lr':'dF I
--i
;;r
IQ
m
~
:.t
D
...
o
c
~
~
.
. -
- . .
~
-------
9
areas strongly suggests that the unweathered zone of dense silt matrix glacial
till vertically restricts contaminant migration. Thus, it has been deteDnined
that the soil contamination of potential concern is limited to the upper ten
to twenty feet of soil. These soils may be considered as a continuing source
of ground water contamination, although their effect on the regional ground
water is perhaps limited by the intervening presence of the unweathered
glacial till.
2.
Groundwater Contamination
Ground water contaminant movement through advection and
dispersion is the principal pathway of migration at the Site. Hydrolysis,
sorption, oxidation, and biodegradation are not considered to be significant
fate processes for the contaminants of concern, indicating that the ground
water pathway offers little retardation of contaminant movement.
The hydrogeologic investigations revealed that ground water at
the Site occurs in two flow systems consisting of the following three
components: a system in the glacial overburden consisting of a shallow zone
of a perched groundwater component less than twenty feet deep; a deeper
flow system component at the glacial tiUjbedrock interface; and a
regional flow system in the underlying bedrock aquifer.
Hydraulic connection among the three flow system components is
limited by the presence of a dense glacial till directly overlying bedrock.
Flow in the overburden systems is principally lateral, generally toward the
east and west fran a topographic high beneath the Bendix plant. However,
some limited leakage of water downward between flow systems does occur
which is evidenced by the low VOC concentrations detected in the regional
aquifer. The Village of South Montrose residents use the bedrock aquifer for
water supply via domestic wells, and Bendix uses it for process and potable
water via production wells.
The groundwater contamination is concentrated in the shallow
flow zone, where it ranges fran a few hundred to hundreds of thousands of
ppb beneath the plant property. Beneath the west parking lot, gravel fi 11
material is present that contains several thousand ppb of volatile organics.
In this area, volatile organics of up to 1,000 ppb have been shown to have
migrated vertically to the top of bedrock flow zone and fran there to the
bedrock aquifer, where the concentrations are 100 to 150 Wb. In the bedrock
system, the contaminants have migrated southwestward along a bedrock fracture.
In the eastern section of the Site, volatile organics up to
several hundred thousand ppb are present in the shallow flow zone at the
former pit disposal site. There apPears to be very limited downward migration
of contaminants in this area due to restrictions on flow through a thick
unsaturated glacial till. However, VOC concentrations of several thousand
ppb have been detected in the top of the bedrock flow zone at one location.
-------
HJ
3.
surface wat:er Contamination
The initial hydrogeologic investigation found no volatile
organics in a marsh located on the eastern portion of the site, which forms
the headwaters of Meshoppen Creek. Wyalusing Creek is a headwater stream
which crosses the western property boundary of the site; the headwaters area
of the Wyalusing Creek watershed was dry during the initial field investigation.
Since the stream could be a discharge area for the ground water contamination
beneath the parking lot, samples were taken during the wet season from the
parking lot drain pipe and three samples were taken selected locations in the
stream itself. This sampling and analysis indicated the presence of low
levels of trichloroethylene and trans-l,2-dichloroethylene at the point of
discharge. Samples taken downstream exhibited lower concentrations. Samples
of pond water have also been analyzed. This sampling also indicated the
presence of low levels of trichloroethylene and trans-l,2dichloroethylene.
Additional surface water samples were collected and analyzed as
part of the Supplemental Remedial Investigation. The results correlate with
those reported above, indicating the presence of low levels of trichloroethylene
and trans-I,2-dichloroethylene in surface waters.
4.
Air Contamination
Minimal air rooni toring data have been required by the EPA at
the site, since all of the contamination is subsurface. As part of the RI,
organic Vapor Analyzer (OVA) readings were taken in each of the four suspected
source areas,' the TCE Storage Area, the former solvent evaporation area, the
old landfi 11 area, and the former pit/trench disposal area. Two background
OVA readings were taken as well. No detectable concentrations of VOCs above
background concentrations were observed. Also, no odors were detected,
and in the absence of disturbance of contaminated soils, volatilization of
contaminants and subsequent transport by air is not expected to be an exposure
pathway.
5.
Sediment Contamination
Analysis of the sediment from the No.1 Pond showed trace
concentrations of toluene, an organic compound that was not detected in the
water analysis. In the No. 2 Pond, trace concentrations of toluene and
ethylbenzene were detected in the sediment sample fran the north end and no
volatile compounds were detected in the sample from the south end.
C.
Su:D:ary of 81 te Risks
.
The following conclusions are based on the analyses performed in
the July 1988 risk assessment.
- The maximum detected levels of carbon tetrachloride
and trichloroethylene and the projected concentration
of vinyl chloride in the regional aquifer exceed MCLs.
.,-
-------
11
- The maximun detected levels of benzene, chloroform, and
trichloroethylene in surface water exceed their respective
Ambient Water Quality Criteria for drinking water and
ingestion by organisms.
- The maximlln detected level of trichloroethylene in surface
water exceeds its Ambient Water Quality Criteria for
ingestion by organisms only.
- The maximum detected level of trans-l,2-dichloroethylene
exceeds its Ambient Water Quality Criteria for acute
protection of aquatic life.
- All other potential ARARs are not violated by existing
site conditions.
In summary, ambient site conditions represent an acceptable level
of risk, with the exception of projected migration of vinyl chloride from
beneath the old landfill area to the regional aquifer. As stated previously,
to-date no vinyl chloride has been detected in the regional aquifer. Ho\to'ever,
elimination of the source of contamination represents a desirable action for
long-term protection of human health and the environment.
VI.
Ccm1I1ni ty Relations History
The main carmunity concerns for the affected residents and business
revolve around the issues of how much time will cleanup take; will the
contamination spread further; and can groundwater be effectively cleansed.
PADER and Bendix have worked cooperatively to inform each resident and business
person of sample results and significant remedial or pilot activities. Bendix
also agreed with PADER's request to provide bottled water to all affected
individuals during the initial evaluation of the contamination. Bendix then
installed dual-stage carbon filters to PADER specifications, and is continuing
to rebed and maintain these filters while conducting periodic sampling of the
affected wells.
VII.
RsEdia1 Alternative Objectives
The major objectives of remedial work to be taken at the Bendix
Superfund Site include: (1) removal of soil contaminants to protective
levels; (2) minimization of the amount of hazardous substances leaching into
the groundwater; (3) treat groundwater both on and off-site to <1 ppb TeE;
(4) protecting the human population which utilizes groundwater for
both contact and drinking water purposes. .
Based on the above objectives, numerous source control and mitigation
control technologies were screened to provide a limited number of technologies
applicable for remedial actions at the Site.
-------
12
Section 121 of SARA and the current version of the National
Contingency' Plan (NCP) (50 Fed. ~. 47912, November 20, 1985) establish
a variety of requirements pertaining to remedial actions under CERCLA
(See Table 1). The following nine criteria were used in the evaluation
of the remedial action alternatives at the Bendix Site:
- Overall protection of human health and the environment
addresses whether or not a remedy provides adequate protection and
describes how risks posed through each pathway are eliminated, reduced or
controlled through treatment, engineering controls, or institutional
controls.
- Compliance with ARARS addresses whether or not a remedy will
meet all of the applicable or relevant and appropriate requirements of
other Federal and State environmental statutes and/or provides ground for
invoking a waiver.
- Long-term effectiveness and permanence refers to the ability
of a remedy to maintain reliable protection of human health and the
environmental over time once cleanup goals have been met.
- Reduction of toxicity, rrobili ty or volume is the anticipated
performance of the treatment technologies a remedy may employ.
- Short-term effectiveness addresses the period of time needed .
to achieve protection"and any adverse impacts on human health and the
environment that may be posed during the construction and UDplementation
period until cleanup goals are achieved.
- Implementability is the techical and administrative
feasibility of a remedy, including the availability of materials and
services needed to implement a particular option.
- Cost includes estimated capital and operation and maintenance
costs and net present worth costs.
- State Acceptance indicates whether, based on its review of
RI/FS and Proposed Plan, the State concurs on, opposes, or has no comnent
on the preferred alternative at the present time.
- Ccmnuni ty Acceptance wi 11 be assessed in the Record of Decision
following a review of the public comments received on the Administrative
Record and Proposed Plan.
.
VIII .
Dascription of t:h3 Alternatives
A.
Remedial Alternative Evaluation
1.
Technologies Available
Each technology was evaluated not only in terms of theoretical
feasibility, but also in terms of whether the technology is applicable to
the site sPecific conditions. The technologies that have been retained for
further analysis, after the initial technology review occurred, can be grouPed
into the following nine categories:
.,-
-------
13
1.
No-action with Contaminant Plume Monitoring
2.
Excavation and Secure Off-Site Disposal
3.
Capping
4.
Vacuum Extraction
5.
Soil Aeration
6.
Containment of Bedrock Plume by Pumping and Treatment On-Site
7.
Air-stripping Surface Water (i.e. Parking Lot Drain)
8.
On-Site Shallow Groundwater Collection and Treatment
9.
Off-Site Groundwater Treatment
To analyze these technol~ies, an evaluation was conducted that
considered the requirements of the Superfund Amendments and Reauthorization
Act of 1986 (SARA) (P.L. 99-499) and the current version of the National
Contingency Plan (NCP) (50 Fed. ~. 47912, November 20, 1985). Three broad
categories were used for the evaluation: effectiveness, implementability,
and cost. Within these categories there are seven factors that consider the
short-term and long-term effects of each alternative (see Table 1). The
evaluation is presented in detail in the Bendix Site RI/FS report. The
following is a summary of the evaluation.
Technology - 1. No-Action with Continued Contaminant Plume Monitoring
The NCP requires that the no-action alternative be considered.
This alternative will have no environmental or public health benefits. It
will not be protective in the short-term or the long-term. The
environmental and public health problems will continue into the
foreseeable future.
Technology - 2. Excavation and secure Off-Site Disposal
Using this method, contaminated soils would be excavated and
transported offsite for disposal. Another important limitation is off-site
disposal capacity. This method is not applied to less contaminated soils
that are present at this site.
.
The method of off-site disposal is dependent on the
halogenated organic compounds in the soil. After November 8,
soil and debris generated by 104 and 106 response actions can
disposed ("Land Ban") unless a waiver is obtained.
concentration of
1988 all CERCLA
not be land
Technology - 3.
Paving or Capping to ElUninate Infiltration
This prevents rainwater from infiltrating through the contamined
soil minimizing contaminated recharge to groundwater. Paving is done in
areas where any foot or motorized traffic occurs. This allows normal use
of the area, while preventing infiltration. Capping, on the other hand
occurs in unused areas, and effectively prevents dermal contact and
infiltration. Capping may be accomplished, as specified in the RCRA
regulations, using clay, an artificial membrane, or a combination thereof.
. .~
-------
TABLE
1
EVALUATION FACTORS FOR ALTERNATIVE EVALUATION
.
P.""'" Md
aignilicMI ,..~
0I1o.ay. I8GbiIiIy Of
.,...
UM 01 pelmaMnI
$OIuIiona Md 8''''-
"""'I~S 01
..$GUIce '8COV.ry
aed\noIogMts
EFFECTIVENESS IMPLEMENT ABILITY COST
- ~nol
T OXicily 8: Technical Administrative
Uobility,
Protectiveness . Of VolulJ18 Feasibility Feasibility Availability Remedy Replacement
.
AbiIiIy 10 consl.uct
lechnology
Otha,capilaland
shod-18,m coslS
unlil.8medlal
aclion is comptele
j-
SHORT- Redudionol
TERM existing ,ias
~wiIh
ARAAa
~wiIh
0Ih8I a...ia.
8dviIof"'. and
guidMc81
P,0I8CIion 01
eotnIftUniIy during
,emedia8 8diona
T.. unIi p1G18C8DR
..~
Developmenl and
con~l,uclion cosl:'
Availabililv 01 III~al'
menl. s10,a98, and
disposal 58. vICes
;and capacilV
Ope,aling cIJ51s
101 implementing
,emedial aclion
ShOt1.I... feli~ly
oIlacMoIogy
Av;ailabililv o.
necMssiU'f equip-
mena ;and sp8clalisls
. ne. with some
. -spec4ic AAAR
?'1~~~' _1~~:~~r~1,,~;"-"n'-~~ '-m"'~-'~ ~ . ~~~~ ~"~'.£'.' :;>'~" "'1",:' :...."':'"."",,:,.,::,,:....,..,,','~',"',-:;'~::.' . :......' ~.:'.'."
lONG- Redt"<:tio-\ anU'W8
TERM ,1Ika
Long""" feUbilily
~wtahAAARa
P,ev.naioR 01 'ulUf.
exPO$Uf81O f."""
POienli.1lRtid Iof
..ptow:amttfll
E...01~
8ddiIioniI.~
acUon. I MC8SSiU'f
AbiIiy 80 1DORi801
eU8div....ss 01
.emedy
Abilily 10 perlOfm
opd.illion;and main.
I.n;anc. lunelions
Co5lS of ope. aaion
and mail\l.n;anc.
10, as IOI\g ;as
necessary
P0I8f\1iitl 10,
,.machal acaion
Of ..pliM:em8f\l
cosls iI ,emodV
w.r.to 'ail
COSIS 01 S.yaa,
'UVIOWS
-------
-
- 14 -
Technology - 4. Vacuum, Extraction
Vacuum extraction is a technology that allows in situ removal of organic
compounds fram the soil. The treatment system consists of extraction wells
placed in a grid pattern throughout an affected area and screened in the
zones of soil contamination. The extraction wells are coupled to a common
header system which is attached to a high-efficiency blower. The blower
induces a partial vacuum in the system which effectively lowers the ambient
air pressure in the soils. This creates a non-equilibrium condition which
causes the liquid phase contaminants in the soils to undergo a phase change
to a gaseous phase. As this vapor is removed, the concentrations of volatile
contaminants in the soil are reduced. The exhaust from the blower system
may be treated using a carbon adsorption vapor recovery system if treatment
is determined to be necessary.
This method is well suited for remediation affected soils under and
around permanent facilities. This method is dependent on the rrovement of
air through the unsaturated zone. Because of the occurrence of fine, low
permeability soils at this site, vacuum extraction would require the wells
to be very closely spaced.
Technology - 5. Soil Aeration
The 1985 evaluation of alternatives included on-site purging by
excavation and forced aeration. Since the completion of that study, ERM
has develop and tested better methods of removing VOCs from soils. As an
alternative to the method proposed for on-site purging of soils con-
tamination, mechanical sieves would be utilized for aeration of the
affected soils after excavation. A mechanical sieve is a conventional
piece of portable construction equipment normally used for on-site grading
of road construction materials. The mechanical sieve disaggregates the
contaminated soils, facilitating the release of interstitial VOCs from the
soil matrix.
Using this technology, affected soils are excavated using a backhoe
or hydraulic excavator. The excavated soils are then dumped into the
loading hopper of the mechanical sieve. The mechanical sieve processes the
excava~ed material through a series of grates and blades to break down the
soils. The soil is then carried up a conveyor belt to a set of shaking
screens, where it is then dropped through the air to piles on plastic
sheeting. Samples are collected from the piled material to determine
whether target soil concentrations have been met (i.e. l~~ ppb leachable
VOCs). Sane soils may require rrore than one t>ass through the sieve to
achieve the target concentrations.
Technology - 6. Contairment of Bedrock Pl\De by ~ing Production Wells and
Carbon Infiltration Treatment
In implementing this technology, Bendix production wells 2, 3, and 4
would be run 9Qntinuously, instead of periodically, as they are now, to
prevent contaminant migration to off-site wells. The supplemental RI
showed that all groundwater east of the hydrologic divide beneath the
-------
- 15 -
plant flows toward an east~est trending fracture which serves as the
source of yield to the production wells. At the current average pumping
rate of approximately 5~,~~~ gpd, all of the VOC plume east of the ground-
water divide is controlled. Any off-site migration has been due to the
noncontinuous nature of the pumping. Thus, as long as the Bendix production
wells are pumped continuously at a rate equal to or greater than the existing
average production rate, no further contamination will migrate off-site.
The groundwater pumped from the bedrock aquifer to prevent off-site migration
would be treated via the existing carbon adsorption units. The water pumped
by the production wells would be passed through the Calgon Model II Dual
Carbon Msorber. The excess production water would then be discharged to
Pond 1.
Technology - 7. Air-Stripping SUrface Water
In Unplementing this technology, perforated tubing and an air compressor
would be provided in order to aerate the flow in the existing parking lot
storm sewer. Aeration of the flow in the sewer would volatilize the VOCs
present in the water due to infiltration of contaminated groundwater. This
alternative would provide treatment to prevent the discharge of VOCs to
wyalusing Creek.
Technology - 8. on-site Shallow Groundwater Collection by Trenching and
Treatment tN-Peroxide
In implementing this technology, shallow groundwater would. be recovered
in a fifteen-to-twenty foot deep collection trench located perpendicular to
the axis of the shallow contaminant plume. This trench would be located at
the eastern edge of the parking lot fill to intercept the l~,~~~ };pb and
greater concentrations of contaminants from the plant area. This water
would either be pumped to storage for batch processing of air stripping or
UV-Peroxide treatment or be pumped directly to the existing Calgon Model II
carbon model filtration unit. This alternative would serve to cut off the
contaminant source from the bedrock flow system. Thus, as the residual
contamination in the downgradient materials decreases, the discharge of
contaminants to the bedrock system would diminish.
Technology - 9. Off-Site Grounct.tater Treatment
Off-site migration of contaminated groundwater would be eliminated
by cleaning up the highly contaminated soils in the ~E Tank Areas and by
capturing the contaminated groundwater in the overburden via a recovery
trench or another method of dewatering. Purdt>ing frem the bedrock aquifer
on the West Side of the groundwater divide is not an acceptable alternative
as a Bendix production well on the west side of the plant was abandoned in
the past due to interference of water supply of downgradient residential
wells. Once VOC mass loading to the bedrock is eliminated, concentrations
of VOC in the bedrock should be reduced to less than 1 };pb fairly rapidly
due to the high velocities in the bedrock fracture zone. However, to
account for the fracture zone by induced pumping of domestic. wells, an
additional ten years is estimated. Thus, a range of approximately 11 to 3~
years is considered possible for remediation. Domestic wells will continue
to be monitored and provided with carbon filtration units until the ground-
water remediation has been completed.
."
-------
- 16 -
2.
Al ternati yes Presentation
Due to the topography and distinct groundwater system the Bendix
Site has been divided into two areas of remediation, the east and west
sides of the topographic divide. The east side includes three areas of
source contamination: The fo~er Pit/Trench Area, the old Landfill Area,
and the fo~er solvent Evaporation Area. The west side includes the former
TeE Storage Tank Area. The impe~eability of the glacial till and the
unsaturated zone prevents the use of conventional methods of groundwater
recovery in the east side. Remediation of the west side is complicated
by the impermeability of the glacial till, the location of the building in
the area of heavy contamination, the location of the unconsolidated parking
lot fill 'and recharge of the hydrogeologic system.
A.
East Side
Remediation alternatives for the East Side are targeted at the following
objectives:
- Prevention of migration of contaminants from the shallow flow zone
to headwaters of Meshoppen Creek and;
- Recovery of contaminated groundwater in the bedrock aquifer.
The East side can be subdivided into five areas for the purpose of
defining and comparing alternatives. These consist of:
1. the Pi t
2. the former Landfill
3. the Evaporation Area
4. the Trench Area and the less contaminated area
surrounding each of the above areas
5. .the Bedrock Aquifer.
Sauua.ry of Alternatives
Table 2 summarizes the alternatives according to the applicable
assessment factors for the east side, the fOl!owing is a brief synopsis of
the remedial measures. See Appendix A for explanation of soil treatment
limit of 100 ppb leachable VOCs.
Alternative - 1.
No remediation of the sources or the contaminated groundwater is
undertaken. Restrictions concerning the use of the site and the ground-
water are entered in the property deed. Monitoring of the groundwater is
conducted to track the extent and movement of. the contamination.
-------
- 17 -
Alternative - 2.
This involves the aeration of soils from the Landfill, Pit/Trench and
the Evaporation Areas. Soil aeration involves the excavation of the
contaminated soils above the l~~ ppb leachable level for processing through
a mechanical sieve where the soils are disaggregated, facilitating the
release of VOCs from the soil matrix. The soils are passed through the
process until they are reduced to the l~~ ppb level for leachable VOCs.
It is expected that this system would take approximately 24 months to
remediate the leachable VOCs to the l~~ ppb level. The pumping of the
Bendix production wells at a predetermined rate would effectively contain
the contaminant plume and prevent off-site migration. The treatment of the
on-site production wells and the off-site domestic wells will continue
under the conditions specified by the ACO.
Alternative - 3.
o
Highly contaminated sources in the Pit and the Landfill will be excavated
to the l~~ ppb level for leachable VOCs and removed off-site for secure
disposal. An estimated total of 64~ cubic yards of contaminated soils
would be removed. A soil vacuum extraction system would be installed in
the Evaporation and Trench Areas. It is expected that this system would
take approximately 24 months to remediate the soils to the l~~ ppb level
for leacha~le VOCs. The remediation of the pit and Landfi~l source areas
would be imnediate. The pumping of the Bendix production wells would
effectively contain the contaminant plume and prevent off-site migration.
The treatment of the onsite production wells and the off-site domestic
wells will continue under the conditions specified. by the ACO.
Alternate - 4.
This involves the installation of a soil vacuum extraction system in
all three source areas of the east side, the Former Landfill, the Pit/Trench
Disposal Area, and the former Evaporation system area. It is expected this
system would take approximately 24 months to remediate the soils to the ~~
ppb level for leachable VOCs. The pumping of the Bendix production wells
would effectively contain the contaminant plume and prevent off-site migration.
The treatment of the on-site production wells and the off-site domestic
wells will continue under the conditions specified by the ACO.
Alternate - 5.
.
This involves the aeration of the highly contaminated soils fram the
former landfill Area, Pit Disposal Area, and the Evaporation System Area.
Highly contaminated soils are those soils that contain VOCs in the ppm
range. Soil aeration involves the excavation of the contaminated soils
above the leachable VOC l~~ ppb level for processing through a mechanical
where the soils are disaggregated, facilitating the release of VOCs fram
the soil matrix. The soils are passed through the process until they are.
reduced to the 1~0 ppb level for leachable VOCs. A soil vacuum extraction
system would be installed in the less contaminated areas (100 ppb - 1 ppm
range). It is expected this system would take approximately 24 months to
remediate the soils to the 100 ppb level for leachable VOCs. The pumping
of the Bendix production wells would effectively contain the contaminant
sieve
-------
- 18 -
plume and present off-site migration. The treatment of the on-site
production wells and the off-site domestic wells will continue under the
conditions of the ACO. The proposed remedial alternatives provide complete
protection, in the short-term, to the groundwater users by treatment of the
water at the individual wells. Longterm effectiveness is provided by the
installation of facilities to remove VOCs from the ground water and soils.
B.
West Side
Remediation alternatives for the West Side are targeted at
the following objectives:
1.
Recovery of contaminated groundwater in the shallow flow
zone originating from the TCE Tank Area.
2.
Prevention of further migration of contaminants from the
TCE Tank Area into the groundwater system.
3.
Prevention of discharge of contaminants to surface waters
through the existing parking lot storm drain.
Summary of Alternatives
Table 3 summarizes the alternatives according to the applicable
assessment factors for the west side, the following is a more detailed
explanation of the remedial measures. See Appendix A for explanation of
soil treatment limit of 100 ppb leachable VOCs.
Alternative - 1.
No remediation of the sources or the contaminated groundwater is
undertaken. Restrictions concerning the use of the site and the groundwater
are entered into the property deed. Only monitoring of the groundwater is
conducted to track the extent and movement of the contamination.
-------
- 19 -
Alternative - 2.
This involves the installation of a soil vacuum extraction system in
the area of the 'l':E Tank and the Former Drum Storage Area to remove the
VOCs from these sources. It is expected that this system can remediate the
contaminated soils to the 100 ppb level for leachable VOCs within 2-5 years.
A groundwater recovery trench would be installed to intercept the shallow
contaminant plume. This trench would be located at the eastern edge of the
parking lot. The recovered contaminated groundwater can be treated by
conventional air stripping or in the Bendix facilities existing carbon
adsorption system. The treatment of the on-site production wells and the
off-site domestic wells will continue under the conditions SPeCified by the
Administrative Consent Order (ACO).
Alternative - 3.
This involves the installation of a soil vacuum extraction system in
the weathered till from the TCE tank area to the eastern edge of the
parking lot. The saturated weathered till would be dewatered prior to
installation of the system. It is expected that this system can remediate '
the contaminated soils to the 100 ppb level for leachable VOCs within 2-5
years. The treatment of the on-site production wells and the off-site
domestic wells will continue under the conditions specified by the ACO.
Al ternati ve - 4.
This involves the installation of a groundwater recovery trench to
intercept the shallow contaminant plume. The trench would be located at the
eastern edge of the parking lot. The recovered contaminated groundwater can
be treated by conventional air stripping or in the Bendix facility's existing
carbon adsorption system. A multimedia cap or asphalt pavement would be
placed from the 'l':E tank area to the parking lot to eliminate recharge to the
shallow flow zone and lO\Er the water table. It is expected that this system
can remediate the groundwater to <1 ppb for leachable VOCs from 11 to 30 years.
The treatment of the on-site production wells and the off-site domestic wells
will continue under the conditions specified by the ACO.
IX.
A. Description of Major ARARs
Federal
S~
- ~LS
.
CWA
- Ambient Water Quality Criteria
RCRA
- Closure Requirements
-------
- 213 -
State
Pennsylvania Clean Streams
Law Section 4132
- Water Soil Clean-up Standards
Pennsylvania Solid Waste
Managanent Act Section 5131
- Soil Clean-up Standards
Pennsylvania Air Pollution
Control Act
- Ambient Air Quality Standards
B.
Additional Requirements for Protectiveness
The selected site remedy must consider and be consistent with the
following:
Federal Executive Order
11988, Protection of
Floodplains 413 CFR 6,
A~ndix A
- Action to advoid adverse effects,
minimize potential harm, restore
and preserve natural and beneficial
value.
Federal Executive Order
119913 Protection of
Wetland$, 413 CPR 6,
A~ndix A
- Action to minimize destruction, loss
or degradation of wetlands.
Federal Clean Water Act
- Differential Groundwater Policy Class II
A aquifer
RCRA
- Land Ban Disposal Restrictions
x.
~ati ve Analysis
A.
East Side Alternatives (See Table 2)
Alternative - 1.
No action with continuation of groanlwater monitoring.
No environmental or public health benefits would result from implement-
ing this alternative. The reduction of.existing and future health risks by
preventing continued exposure to contaminated groundwater would not be
addressed. 'l\:E and vinyl chloride occurs in 19 residential wells at a
concentration of 1-30 Wb. Contaminated soil on si te which acts as a
continuing source of groundwater contamination remains. Groundwater monitor-
ing wi 11 track pl\De roovement, but will not remediate contamination. There
will be no red\X:tion of toxicity, mobility, or volu:ne, since no treatment is
employed. Site specific ARARs will not be canplied with. The Present Worth
of this Alternative is $7713,0013.
Alternative - 2.
Soil Aeratioo; Groundwater Recovery TreabEnt
Soil Aeration system would take 6 months for design and construction.
The system would be operated for 24 months. Groundwater collection and
treatment is presently taking place with the existing production wells.
VOC's are being removed through the carbon treatment system prior to
discharge to surface waters.
-------
...-.,.... F'-'
........ tL.-oL .....
~ '18M IIIIIIII ...t, - ..
......... ROD
.....
. "'11f""""--
..., .... ........
.....
. 'ut. ~- .. """'1
.... --- M8-.
I.
......... I ..
.~
OeM ..."'1 ~ . .~-
_III . J -U ...
............... J' ~
............. ...
"M" ...
... l1li& .... ... .-..a;
INk .... ..... ... .......
.......
.
... ......... - ..
.. .. ... .....
........ .... -.......
TABLE
a
US, 6tDE
...~,... AIa.....av. Ii..-.'V
AI.m.II.,. 2 --
Soil A8t~ GlOUIId
We., Rlco~rn'..fnwlll
b-8IMIII.en.. -~ 8M
..-~ 01 ..... --
1M "nd'lIpI&ItI~
..~ .. - ...... 1,-
... II 100 .... .....
......... ... If"'"
..... .. ......... .. .
....-; .- ....
II' I .. ~--. I........ 01
....... .....-c """ .....
... ....... If"" ~
..... ..... ... ...
-"8'uW- n.~
.........-- III at ......
.......... .......-
,,,"'r' .. ,,888IIIW
...... .... IIIIIh ..
...... "lit.! c8r- .....
¥OC'I......--
....... .. C8IMA ....
.... .,.... ..... .. 1M.
..... .. IUIIIc8 ......
...... .... .. »40 ""1
. .............-a--
......... ,,10).
~.
1Ir""-'" ..... III
..... ....,'-.. .....
III ...... ......
"11I:rR" --"1
,..... ...... WwIaIIon
.. .... ..... V.,.wl ......
...8IIM 01 ... _8IIOn
....... On...--
..8I8CIIon pl8"'" hough
--- ......... .. 8ft 1M
...... ......
AlltlllI/IlWe :J -- 01' ",. D"P06"'-
If- Ed'M:""" GleJUnd W....
H.tcOtlW r/f, "/nltlllf
fau.... .... ,_. IDf III ....
~ 240 CtIIIII; ...eII r- h
I8nd8M .... 400 CtIIIII; ,... 110m
1M pII; 1M... Mil v... ...ea.
lion .,.... In ..... ~
~ ...; .... 1811 01 'DO JIIID
...; ...... ~ ....
.GUIId ..... .. II'~ III .
..,8IIDn; on 8fIIn8 -8811118.
1,,,,,,,,, .. .. .... .....
I&IIIfIw well.
~ Veplll ..1I8C1IIft .,.18111
-... .. . ~ IDf pIOI
IMIine. l188l8I\. ~ --YA8IL
I.. .,.... ..... .. ",MM IDf
24""'" ~ MIll r-
... ..... .... ... pel ..... ...
...-.. ~ 8apGM11 III . ..".
... ...... GI~..... ~
1IOft8ftI- .. ~ 2.
&IgnIk8nI1ncr.... In
...... ....... --l1li
..c;av88lll\. ""
IqI8ctl .- -pili ...,,1IIft
If'" ........ law ...-...n
C8IIII" .......
"oI8..:88n .equwed ~
InhaIaII8n 01 du., CIf V8fI8I. dullfI8
an.a.IIaIion ~ 1IfI8I""
08 ..w W8pOI ....8A8A .,.....
On . --'-
INOIKIMIII INCMIId8d hough
c;.mon IIINIIm8fII" - ...
po&Mbl4t -.... .
Al18,II/IW. , -- Soli
AI..".."... 4 .. V.u:uum EdM:1Ion Ae18811f\ "awulll E"'~fl/Jn.
GlOUIWI w..,.., ",",Wtf-r/',...""" GIound W..., ~8IW"'-"''''''
1na1811 v..- .."aC:1IIft
., .'am In Ian..hll/pIII" enc;hI
di.....1Ion .,". 1,,,, ao'"
ID IDO PfIb ......; pump end
.... .ound ..lflii ID II'~
o' .... lIIIQI..un; on P'8
monoIOIlII8. 1'''8nIInI 01 aU .,18
clDfMaac: auwIr ........
SolI vafl'll ..UKIIOn ..118m
-.W IBM . monIh8 lor plkal
"'Me. dMIgn. and c:onaIIUC;8On.
The .,18111 -.AId ... opwa1811 IDf
24 monIha. GI-.d _lei
mlloKlMIn and tr8Un8nl ..
II'~ 88IUn8 pIKa ..III
... u'l&IfI8 jlfCI
-------
A_- .11 fadIJI.
iIIJtur If I"" .....
u,...... f~ ...11
.,...p ...
. &.&..."...........
....
;.
. tv,..,""'"
. ... L~1J. .. c.-.
AMI.... . --
lilt .a-
No"'" '\t11. n.
........
RI8k ....... ... .... .....
W"0 ~ 8ft ..TeI_",
............ Tel -...
...... --.. II .1.", III'
.... .. . -..-. .. t . .
... C 'T ~...t'"
.......... - - ........
--........... --
...... ................
.... ...
Me ... ....... .......
.. .........,..... .. 11-'17'"""--
... ... 8M ....... ......
.... ..... --~ ..
-- ..... .. .. - ..
... 1I'lf Of 1 ~ rl'
... 18M! .. ....... IWI;
~""'CUIII '1
-------
A....r~ F....
~ ~I .. 1"1dIW.
........ ., "..,...
;.
""'...M.~IIf'"
. ,...-.. frI8IMW
. ~r'~I","""" ~M~
. A~t"""~""""
.. .......
C8tI
. c..w...
. 0...
. ,...... W8rII .
MIf- . -
MI~
1M .881c118 .. .....,.
---..~...
.- 1 .'1. t
Gr8uM - ....... ...
.....' I'W. ..... -
...... .-- -..
,
I
Me .. .... 18Atlru r't ~
....... .. .- .......
for on-site .J.
i:m~~1.a~-
-.... ~ .. ....,
.....
. . .
150.000
1118.010
TUU
I
EUT &IOE
"'_.&8"" AMerUlIw.. au-ery
..,.,...... , -
W A.MIW\ Gt-w
MI.I- #tKo-if,.."..,.,
'... 8M ....... ..
II-If l:1li1111 . ...
I~ - II.""" ..
........... ..........
.. _""'1 lit .. .....
- 11~ -I""
...... r IT £ . ~.. ...
--.... "cl- TeL
GI8uM- -... 8M
.. ... . 'I' '1. ...
........ .. .... ....
.. ......
III ....... ......
... ..... .J .r.I
..... ...... ...
II r It ~Jl"""'. 'M
'.It . ...........
...... .. .... .. .......
11 i/ . .....-
-. 8M"'" ...
...' I' ~...
.....
Iw ...... .... ....
........ .. .... ......
..... for on-site
remediation.
..... 8M .........
......... 0..........
...... ........ - -
.w...,. ......... ..,
.....
82.136.000
810.000
11.406.000 Ca)
Aotw,.... J - 011 .... ~
V.... E.IIKIDI\ ~ ..,...,
"~0It..p/f,.......
....... ,...... .. canIMIIfto
81M .. ...... .. ...; ......
11M ..... .. 8M .... -
...,.... ..-....... CD"'- "IT",
flIT ~ -..... .. ..,.. ".KIeft;
........ .88IIC_........
Ta.. ~...........
o.-w .... 8ft .... aM
.. .... .-f' '; ..
...... .. C8ItI8ft ......
-- .......
f-.. "DR""""""'" AI
..., .. "', . II; ... .....
- ........ ... ..
!mi'. IT" ..... ...... ....
....... ........, r-. It"
~r 't ... .... ..; 8f8UNII
..... ....., .... ...... AI
. ...... IIGI ',..
» ,.,... 11- ....
....- .. - ......
I""'. for on-site
~iation.
..... -......
........ Due..........
,...,.. ...8InIa 8ft -
ealr8Cll8l\ ............ ...
KaW.
".107.000
12".001
U.040.ooo CIt)
Mr.ma..,. J - Soil
A-.m.'- . .. VKWIII £...,;.". Aela8Gll\ ~-- &ar~
Gt--' w... R.r:ottM'llr,..1m8tI ~......,.... . ""',......,
loall:- and woIYrn8"
~. In .....
..,..,., .8duC8d !If
.~;........ -
C8II8I_11 ~
liT ~r--'''" ...la.
ca-.n.a - 11ft ... 8nII
.. .... ~ ..
......... !If cadICIft .....
-- .......
&ell .... "'.C8Ol\ ..........,
... . ~II; .......-
- ....--0......... , -II"
.,..... 81M .." ..,a; 11)8
I8ct1.IDi118r Ma 8I8M-
....... .. - ... .......
'* ~1 . GI-----
........ III AM8f... a.
AM ,."..1 lIam ....
'eqylf8l8; 118 .... .........
.......,.. for on-site
remediation
6eMce8 8l1li In8I8n818
8WII8III8 0..... pGI8fI88I
,...,., ...."".. 11ft VKUUIII
.."KIDn. iIInI18- -w
~.
".363.000
U....ooo
U.bll3.000 (bl
loalarr 11M ....... ..
~--- lit 88M
~ .........
-- 8M ..... -......
III"""" .....
..... II8f'iIr'l1l-I'.n -
....... If . Iri"",
---........... ... fa.
GI-- - 8ft .... 8fTI8
a' .... ..,-' 1 "W ...
v. ~ I'" .. CIIIII8ft If...
... .......
v.,., ........ ....
... --- "'8C8N ...,
.. .".-... ,~ 1WII
........ .......... If-
c..wucaara 1nIIuuJ. fhe
---.-...... ---
..81M .. ..... ...... --.
- ~"'"' Gr...,.......
....., ... ""-11 ....
....... Il ...."
......
All 8t8"IIIII ,- "'l8
.....- .. ... -...
......... for on-site
remediation.
ieMcM 8M ........
.,........ 0...............
paI8nI ....... 8ft --
""8C8If\. ........... ..,
Mo:6II.
. '.210.000
123'.000
82.1.1.000 CIt)
-------
- 21 -
Pumping time of 20 to 40 years is expected. Significant increase in
fugitive emissions during soil aeration process is expected. Protection of
workers required against inhalation of dusts and vapors during operation of
soil aeration process. In addition, ambient air monitoring throughout the
the site will take place. Potable water will be treated by carbon filtration.
Environmental impacts anticipated during remediation are aquifer drawdown
during groundwater recovery and treatment and air impacts fram soil
aeration process.
Treatment of soil and groundwater significantly reduces residual site
risk thereby reducing the potential for human exposure to soil and/or
.contaminated migration of groundwater. Groundwater will have <1 ppb of TCE
which is expected to be achieved. Soil aeration will significantly reduce
contaminants in soil, and groundwater on-site and off-site will be restored
to drinkable quality. Soil aeration is highly reliable due to removal of
material causing risk. Reliability of groundwater containment and recovery
has already been shown by monitoring and pump tests. Toxicity and volume of
contaminants in soil are significantly reduced by the aeration process.
This alternative is technically implementable. Site specific ARARs will be
complied with. Risk to human health and the environment will be
significantly reduced by described soil and groundwater treatment. The
The Present Worth of this Alternative is $3,405,000.
Alternative - 3. Off-site Disposal of Soil, VacutD Extraction,
Groundwater Recovery/Treatment
Soil vapor extraction system would take 8 months for pilot testing,
design and construction. This system would be operated for 24 months.
Contaminated soils fram the landfill and pit areas would be removed and
disposed off-site over an 8 months period. Groundwater collection and
treatment is expected to be completed within 20-40 years. Significant
increase in fugitive emissions during excavation is expected. Air impacts
fram vapor extraction system will be mitigated by emission control system.
Environmental impacts anticipated are aquifer drawdown during groundwater
recovery and treatment, air impacts fram excavation and construction and
operation of vapor extraction system, and immediate mitigation of 2
highly contaminated source areas.
Removal of contaminated soil off-site from landfill and pit areas
immediately mitigates highly contaminated sources. Treatment of soils in
other areas significantly reduces residual, leachable VOCs in soil.
Reduction in potential for human exposure to spil and/or contaminated
groundwater will be accomplished. Groundwater remediation is expected to
be achieved in 20-40 years. Volune and toxicity of soil and water contamin-
ation will be remediated by vapor extraction. Groundwater contamination will
be reduced by activated carbon treatment. Remediation technologies identified
in this alternative are implementable. All site-specific ARARs will be met.
The Present Worth of this Alternative is $3,040,000.
Alternative - 4.
Vacuum Extraction, Groundwater Recovery trreatment
Soil vapor extraction system would take 8 months for pilot testing, design
and construction. The system would be operated for 24 months. Groundwater
collection and treatment is presently taking place with the existing production
wells. VOCs are being removed through the carbon treatment system. Pumping
.~ .
-------
- 22 -
time of 20-40 years is expected. Air impacts from vapor extraction will be
mitigated by emissions control system. Protection is against inhalation of
dust or vapors during installation, and operation of soil vapor extraction
system will be required. Environmental impacts anticipated are aquifer
drawdown during groundwater recovery and treatment and air impacts from soil
vapor extraction system.
The treatment of soil and groundwater significantly reduces residual
site risk. Reduced potential for human exposure to soil and/or contaminant
migration to groundwater is accomplished. Toxicity and volume of
contaminants in soil significantly reduced by treatment. Groundwater on-site
and off-site is remediated by carbon filtration. All technologies identified
in this alternative are implementable. All site specific ARARs will be met.
The Present Worth of this Alternative is $2,593,000.
Alternative - 5.
Recovery /l'reatment
SOil Aeration, VaCU\D Extraction, GrOUDdwater
The soil aeration system would take 5 roonths for design and
construction. The system would be operated for 4 roonths. The soil vapor
extraction system would take 8 roonths for pilot testing, design, and construction.
The system would be operated for 2 years. Groundwater collection and treat-
ment is presently taking place with the existing production wells. VOC's
are being ranoved through the carbon treatment system. Pumping time of
20-40 years is expected.
Significant increase in fugitive emissions during soil aeration process
is anticipated. Air impacts fram vapor extraction will be mitigated by
emissions control system. Environmental impacts expected are aquifer drawdown
during groundwater recovery and treatment and air impacts fram soil aeration
process and soil vapor extraction system. Treatment of soil and groundwater
significantly reduces residual site risk. Reduced potential for human exposure
to soil and/or contaminant migration to groundwater. TOxicity and volume of
contaminants in soil significantly reduced by aeration and vapor extraction
process. Groundwater contamination remediated by soi 1 aeration. Technologies
identified in this alternative are imp1ementable. All site specific ARARs will be
met. The Present Worth of this Al ternati ve is $2,315,000.
West Side (See Table 3)
B.
Alternative - 1.
~iaa with continued monitoriDg
No environmental or public health benefits would result fram implement-
ing this Alternative. The reduction of existing or future health risks by
preventing continued exposure would not be addressed. The contaminants would
remain roobile and would continue to contaminate area groundwater. This
alternative presents no additional adverse environmental impact.
Risks remains from groundwater contamination of TCE on site. TeE is
projected to occur in 19 residential wells at a concentration of 1-30 ppb.
Contaminated soil on site acts as a continuing source of groundwater contamin-
ation. There is no reduction of toxicity, roobility, or volume, since no treat-
ment is employed. Groundwater roonitoring will continue to be implemented.
,~
-------
TABLE 3
WEST SIDE
Remedle1loft AU..neUv.. Summa.y
AIfSfnilUllfI 2 . - AI'BmatJlIs J
.......... . -. Vacwm EJlltacllon. Glound Vacwm E.llacbotl. GtoUl!d AI'BtnaIJIIS 4 -- Gtound W..,.,
Auassmenf FIIdDt8 .... W.a8fl1 RfICOlIBtylTtBilUntm, Wa,st Supply TtBd,mUI/' RBCOlllltyITt"a",..,." ~
Deed n .'''''' I II ...... on- In5W vapor ..bactlon &pl8m 1nI~ Vilpor e.llaclion 1n,1aJI wound w... '8COWIIY
.... ,. 1" , - utwa: 011 IA88 In TCE ..... ar... T,88I iOMI &yUHil '*IwUOO palklng 101 and lllIOd1 In parking 101 8Rd .....
end 01... aM 08 GCIfl1l m' WIled 10 100 ppb 18v8I. 1nI..... TCE ""'''N T .ttalmunl at of'. by iii, '1I1pplng, 01 with IKWIy'Ji
ground -: -.... auund WUN '8CCMNY lIench 111M don'Mt5IIC ,upply weu.. CiI.bon ilb6Ofpion 'pl8m;
80ftA80f1n8- In ~ 101 and 11..1 by .. pIaat ~ ClIp "om TCE
1IrW*18 01 wIIh ladllly'& Idnk iIIN 10 paiklng 101; on going
c:IIIbon IIb6cIIp8Ian &y&I8m; mOnlkMlng. T,..Imen'" 0II.1it...
011 going 18OnIIOrk\g. domu,1IC ...
T....... at ".&Me dom85l1G
~....
,. 6bor'-Mlm En.c:8Iv8M6t
. 111M unII ptol8C:llon II 0IIec:8 GOIUC8 18 no8 ~; Sol v8pOI' ..1I8CIion &V'1fIm Soil vapor ..lIaclOll 'y'lwn TINt g,ound willw .ecovery
"-.ild C'" ROO .1IIk 11018 ground .... ~~p-" would IBM 10 IIMIRh 80f pilot would .... 8 monlha lot pllol lIuna. would &iIk8 up 10 12
~ ........ ......, d85.18n, and ...lrUCllOn. 18U1nQ, .'!gR, and wru;IIUCIOO. moo"" lor pilot le5llng, dt.UUn
The aylllllA would be Clp8fal8d lor 1h8 IV""" would bM operalOO lot end con&lfUC:IIOn. Cap
. 2-1,..... GlOLftd WaI8r 2.6 V88I&. Ground willuf .8COV8l.V . c:ombucdon would
.....-.y lIench would lalla up to would IiIk8 11 10 30 VNfI 10 ,ewa. lake .. man". Ground Wille.
12 MOnIha 80f pMoI "ling, 1 P.O!tiCUon ,equl,ed 8Qain&I
dudn8 ........ KIIona InhalilIIOn 01 ""1 ~ dual 01 Vaporli dUfiog inhalauon oe dwil
OIvaporadurtng InIiI.illllillion and ope, abon Of Vaporl during
1nllillal6on, and oper alAon 08 ground wal8f .ecov8l,y 1n!>lalladon. and opIIfilllon
a &Oil V8pOI' ..If~ IiV.l8m. IWu..m. of ground wa... '8COV8I'Y
'~~lufO and Cilpping c:oo.lluctlon.
.' .
-------
,-
AsNum8If FaatJt8
-
EnWonmenI8I Imp8cI
lGft8-.... En.cIu'8n8u
-~
;.
. ......... GI ......
IWi
. ~~ 01...-
AUf,..... , --
....
No ....... ...... rI1 vIIIII
.......
RIIk ........ .C8 grOURlti ....
~01 TCE.. lie.
TCE .. Pf~ ID --In 18
........... .... .. . GOnC8U.
.. 01 1 - 30 NIb- Corlllllln8l8d
101" ... Ida - ..........
1GUl'C8 01 8'ound .... ....-
1n8IIan- ....... 1.1 . 1~'
- rtIk.
No dlf8G8 .,...1n8 ~.
ID 11'''''' ...... ID CGnI88IIn-
..... 8GI and ground ......
GfOUftd ...... ---1n8 wMI
..... ..... I8OII8IMnI. .... ...
AiIII 11111.""""" ~.
TABLE 3
WEST SIDE
RamadlaUon AUa.naU".. Summary
A/'BmaUIIB 2 --
VOICUU/II EII"iIQIon. Gtound
Walal RBCOIIB1¥IT,BalmBn,
Y6nor a6r ImpacIa "om 5011
vlIpOf ..IIf~ ay68am;
.1IIIIdawn 08 .... w1d8r
p8dIIng 101 durln8 8'ound
..., ...ac8on and 1I8alm8n1
Tr....... 01 iOIIlIAd ground
..... ~ .~
......... IM8 rtIk. Treal
.. 10 100 ppb ..,..; Reduo8d
poI8nI&aIlof .... ..poiw.
ID 10M 8nd/CIr ~
..don 01 ground WAIef.
o,ound ..... .. ...,. d
... 01 TCE. 1ookIRD" '* aile
Pf8Wd88 po88nIiaI 01 UA8UIhor-
ked UI8 a8 ~ w...
VIIpOI ..trKtkln ..
UgnIIc8nIIy .8duC8
CIDAI8I'nNnIa In 801; ground
..... on .. IIAd 01 aII8 ..
be ...ed II) CDatPY .... ACO.
o,ound wal8r moniIofIng wilt
Ir" plume fnOVI8IA8nI.
A/fllmaUlI1I J
Vacuum ElillaCllOll. GtOund
Waflll Supply T,tldfllltJo,
Uinof ail Impac" '.om iU'
a,,1ppIIIQ aYlilltm.
TrUlm8nlol 501I1II\d ground
INI8r itgnIlicilnUy .ttduati
.8i1duill U18.1U. T .ltal
ioIi 10 100'" Iwttl; ROOucad
poI8n1ia11Df human ItllpoiUla
JnlQriAl60n oIlI'ound waaa..
Ground wal8f WII.I hiWa < 1
... 01 TCE. MonIIoIIng on f>ita
pt8dud8a polalllW of unaulhor-
Il8d UM 01 oonLilJlllnalttd Waklf.
Ground waIW raoovary iy&tOOt
1AgnIIacan~ .aduoui c:on&amInanM
In iOII. Ground waIW monIIorlng
WIll ".1Iy .1tK:I"lNMICii 0' IiYitam.
AI'tlmallllll 4 -- Ground W4IIIN"
RIICOlltilylTIBillnWnt ~
Aqudtil dJ awdown dullng
gtound wal. '8COII8Jy and
halmant; minoI Ilk Irnpac;lli
Irom all a"ipping ayil8m-
T.~t 01 &Oil and gtound
wallK iIgrIillcanlly .aduca.
.6tildual il18 dik. T.alll
50. 10 100 ... Iwal; ROOooad
. polanliallOl human ..poiUl'.
10 iOtI and/or CXWIIiIJNnarad
migrallon 01 ground WilfUl.
Ground wa... WIll hava < 1
ppb of TCE. UonIIoIIng on &ita
ptedudai polanlial 01 unaulhOJ-
Wid U58 01 oonlillmlna8lMl w_.
Ground waIW .aooV8ty .yilam
iJgolIlWM'I.y .aduGua ~-
In.~ Ground wiWlf monMoIang
WIll "wily .1Iac:lht8n866 01 .yalam.
-------
AwIum8nf F61&fDt8
. N"''W 01 CoM-
;.
~"1Ion 01 To**1.
~ Of VobN
t....,,8ab&U1Y
- T"'" -......--
Aa8ml1Iv8 , ..
A.o..o....... ........ -
GIiDIM - ..........
~..- ...
No .8ducMon oIlD~.
~. Of ...... .... no
........ ~~ 1'"
\ .
Ground .... manIIodn8 eMf
10 ~"III.nI; lJfound ....
.... ...... ....
TABLE 3
WEST SiDE
H...da.Uon AUa.naUv.. Summ..v
AI,amatilla 2 --
V~ E."itAIDII. Gtound ..
W.llar RlICOIIa n'fHllman,
Vapor ..lIacion meb»d ....,l8Ia
good poI8nIIai 'aIIabMIIv
'eIiabIe, nMd ....... ID v"'1y
. per8Drmance. Ground waler
.~ IA8Iwxi R88dIIlNlllIO
varllv p"'o..n..~. T'''&manl
oIlJfound ... II . proven
InM8aod 01 ~ VOC..
"oaa lJfound waaer.
T 0IIicMv and vobne 01
conIafNn8nII In 80M
~ .8duc:8d tar
..........; Ground .,....,
~ II .8duQed.
Ground -- on .... 8nd
oil-a'" ~ ..
"""'--d bf carbon ......
..... .,.....
&01 v8plf ...8C86on
...............; .equIr-
-- ,-.8d"""""" 8nd
~"I lor a.... up; ...
~.... b88ndwnon-
........ .. .... MIla .....
GOndiIona. Ground W8IIN '~ry
8nd .......... II . prown
~.
AI'8malllla J
Vacuum Exllacwn. Ground
Wattt, Su TUId,nldn'
Ground walor .uc.o"8f~ mttftOd
.~. need ltiS.ng 10
\/8f11y .'1ac1l"8,",66.
T o.k;Mv iInd \/oIl.Ifna of
~" In 601
~~ .educ4Ni bV
............; Ground wale.
~ II .Mduo&d.
Ground will8r .ecov..~ 6V61orn;
~~ hMlI88n dernon6ar..w aa
obw ......
AI'8rnalille 4 .. Glound W.,.,.
Rttcolltlr 'Il
Glound waler '8COV8IV mel10d
.oIlabt8. n88fI IMIIfIQ ID
\/&lily ellucliv.neu.
TOIIICIIV iInd volume 01
~1Ii In 601
aIgnIIM:anIIv .8duc8d bV
.earnena; Ground wal8r
C1OnIIUnInaUon it '8Ib8d.
GlQWId wat« '8CXMI8Iy apl8m
and ~; 8achnoIow
ha5 be8n demonqal8d lit
oUwir "'Iaa.
, I,
-------
~ Fa&M1I'I
Ad8InII8r8iv8 V _lWIItr
- 1111~ 08 I8IUIoII
.. --. 118
;.
c.I
- c..- 0018
- 0&..
- ........ WorIb8
~.. ARAftI
- C~... AAARI
- ~r. _08
....
- C~...
..... --.. ...
8"~ ." "
."r -.... . -
.~
No II 111----:
....1IIt. - ...... ......
for on-site
remediation
&8N6cK III .... -
8M1ft18Df1ll8 .. cu.....,
.........
.
- 0 -
110,000
1110,000
t
YCLa R ground - ....
... .. ........
Mol )I..'''''''''
0.. not .... ......- 08
.............. .......
TABLE 3
WEST SIDE
R...dl.llon Alle.nellv.. 6ummer,
AII.,n.li~ I -
V~ Ea.abl. GIound
W..., RKOtI8/Yn,..,men,
Nt p8dIII8 ..om .....
........ Iof v8fIGI ..1I8C8ion
...... """118 perlllll ma,
.. ...... III ..... .......
-: .. 0Ih8f .....
..~N4 for on-site
remediation
.... 8nd ....... 8I1IM8bI8.
0u8 10 pCII8nIIIII pIII8n8 .......
- v.... 8dM8iaI..
.....~... ... .., .....
Nt 8""'-
11,110,000
1'&3,000
12,'72,000(8)
C8dMIn ~pMon
1',064,000
1'''',000
1',8",000 (a.
AI ARARa ... be IMl
NGI applicable
eompi88 wtIh .... 8nd
IoGaI cd8ria 8nd
...... adwilaliI8.
AI,ema"",,, J
v~ EailQlOfl. Glound
Wille' Supplr T,lJaimlln,
AJt p8fINl !rom 5~.
.equued Iof vapol ..aracalon
1,518m; CllKhillge 1*""1 maw
be '8qUlled IDI ..aa8d ground
.....; no 0Ih8f ,*""15
'8qUi.8d. for on-site
remediation
S8nI6c8I and male,1iII5 avall4lbl8.
Du8 10 polen'" ~""'I'.",1IInII
on vacuum ....ac:aaon,
ImI&aIaone maw occur.
$1.680.000
$238,000
U,611.ooo (C;)
AI ARARI wMI be mel
,
NGI . applicable
CompI8I wih 5"" and
Ioc:4III c:nI8fIa and
...... 8dvi50n88.
AI,,,m.iI,,,,,, 4 - GtOlM8d W...,
Recollflryfl ,.8UrttIIft ~
AJt permll Irom ....
.equu8d lor vapor .1Itr8Cl8on
IVII8m; d8c:Mrge ..- 1M,
be lequW8d lor ...... gr""
.aaw; no 01h8r .....
..qul.ed. for on-site
remediation
s.rw. and maI8daII
........w .vadable.
$1.104,000
$81,000
U,030.ooo
AI ARARI wMI be mal
Not applicable
Comf*ea with I"" and
local c:n18lta and
--AI 8dvilGd88.
-------
TABLE 3
WEST SlOE
He.edlealon Allernaalv.. 6ummerv
AuauIn8fJI FI/dDI8
AIn8M f ee
....
""flfnallllfl 2 --
VOICUIMD E.lliiaIOn. GrOUld
WaIM R8COtI8I¥fl'Ba'm1llU
0IMf.. P,088C:IIan 01
..... ........ ..
ErwlfonlNRl
- Haw"'..
111II1n..1, ,.....,
.. 0GM0I8d
RIIk . ....... ... ...
111811. '1 CIf eLl. . T L- ~..........
.... II MI GGII""".
EM""""" ....,.... ..
00IIIRa8 . I88ct*'8 '- -
... ... ..........
RAY of dIIec;8 ~ wllh
~.. 8nddui8
~ ,eduaId bV
In . ......... of I0Il.
ConIMIIn8nI _810ft 110m
an ... MIa lID ground W8I8f
~ ,eduaId ~ a
IINIIn8nI; nu 8D hum8A
hMIIh 8nd .. enWonmenI
~ I8d&M;8d ~
ground .... I8CiGV8IY 8nd
1I.1IIMnl
. .
AJ'flfndUlla J
Vacuc.m EJtI,..cIIOfI. Gfound
Wa'a, Supplr TfUd,mun,
RIU 08 dUecI conlact willi
~I&d 50116 and do"
~.~ .fIduc4Id by
k\ ... lfealnMlnl 0' 5..
ConIamInana mlgfauon I.om
on ~.. .. 8D gtGOOd walel
8AgnIan~ .8duc8d by iOII
IIUIm8nI; .IU 10 human
h8aIIh 8nd Iw Wlv6Ionnwnl
~ .8duc8d by
grGOOd .- '8(;OIf8fV and
...aamenl.
AJ'flma,JVf' 4 .. Ground W...,
Rucollfl/r/T'a~ ~
Risk 0' dltecl conlaCl wU"
c:onIamInaI8d aoIIa and dust
5lgndican~ .8duc8d bV
In 51., Ilea....... of a..
ConIamInanI mlgfilllon "om
an ~.. .. 8D gtGOOd wal8r
aIgnIlCiIII~ .8duo8d by aoI
~aalm8nl; ,16k 8D human
haaIIh and Iw enWOM18na
5IgnIecan~ .8duc8d by
gtGOOd w... '8(;OIf8fV and
lI.idllWnl.
. C...,................... ouINd In "GLtk88nG8 IDr ~ RMJWIII --~ 8nd F..1b6ll1r S&"*- Und8f CERCLA:. Dla" Milch 1888
Cat .. IIDr ..... ...... 8ftd .-....me. ft . 11 IDr InIIr~ ..8ftdI
... .. JO 1Dr~. .1. IDr ~ II"
(4 .. IIDr .... .......
, "
-------
- 23 -
Risk to human health and the environment will not be controlled.
Environmental degradation will continue as leaching from on-site soils
continues. Site-specific ARARs will not be met. The Present Worth of
this Alternative is $77~,~~~.
Alternative - 2.
Vacuan Extraction, Groundwater Recovery/l'reat:ment
Soil vapor extraction system would take 1~ months for pilot testing,
design, and construction. The system would be operated from 2-5 years.
Groundwater recovery trench would take up to 12 months for pilot testing,
design, and construction. Pumping time of 11 to 3~ years would be required
to remediate groundwater. Increase in dust expected during excavation and
construction of soil vapor extraction system and groundwater recovery trench.
Environmental impacts anticipated are air impacts from soil vapor
extraction system and drawdown of aquifer during groundwater extraction and
treatment. Treatment of soil and groundwater significantly reduces residual
site risk. Reduction in potential for human exposure to soil and/or continued
migration of groundwater will result from implementation of this remedy.
Monitoring off-site precludes potential of unauthorized use of contaminated
water. Toxicity and vollEe of contaminants in soil and groundwater will be
significantly reduced by treatment'. All technologies identified in this
alternative are implementable.
Risk of direct contact with contaminated soils and dust is significantly
reduced by in-situ treatment of soils. Contaminant migration from on-site
soils to groundwater significantly reduced by soil treatment, and risk to
human health and the environment is 'significantly red\,JCed by groundwater
recovery and treatment. All. site-specific ARARs will be met. The Present
WOrth of this Alternative is approximately $2,l72,~~~.
Al ternati ve - 3.
VacmD Extraction, Groundwater Supply Treatment
Soil vapor extraction system would take 8 months for pilot testing,
design, and construction. The system would be operated for 2-5 years.
Groundwater recovery would take 11-3~ years. A sl ight increase in dust is .
anticipated during excavation and construction of groundwater recovery
trench. Environmental impacts anticipated are air impacts from the air
stripping system. The treatment of soil and groundwater significantly
reduces residual site risk. There will be a reduced potential for human
exposure due to migration of contaminants in groundwater. Monitoring
groundwater offsite precludes potential of unauthorized use of contaminated
water. The toxicity and vollEe of contaminants in soi 1 and groundwater are
significantly reduced by treatment. All technologies identified in this
Alternative are implementable. .
The risk of direct contact with contaminated soils and dust are
significantly reduced by in-situ treatment of soils. Contaminant migration
from on-site soils to groundwater is significantly reduced by soil treatment.
The risk to human health and the envirorInent is significantly reduced by
groundwater recovery and treatment. All sitespecific ARARs will be met.
The Present WOrth for this Alternative is $2,6l1,~0~.
-------
- 24 -
Alternative - 4.
Groundwater Recovery trreatment, Capping
The groundwater recovery trench would take up to 12 roonths for pilot
testing; design and construction would take 4 roonths. Groundwater recovery
would take 11-3~ years. A slight increase in dust during the construction
of a groundwater recovery trench and an increase in dust during cap
construction are anticipated. The environmental impacts anticipated are
aquifer drawdown during groundwater recovery and treatment and air impacts
fram the air stripping system. Treatment of soil and groundwater
significantly reduces residual site risk. There is a reduction in the
potential for human exposure to soil and/or continued migration of groundwater
contamination. Monitoring off-site precludes potential of unauthorized use
of contaminated water.
The toxicity and volume of contaminants in groundwater and soil
significantly are reduced by treatment. All technologies identified in the
alternative are implementable. The risk of direct contact with contaminated
soils and dust are significantly reduced by in-situ treatment of soils.
Contaminant migration fram onsite soils to groundwater is significantly
reduced by soil treatment. The risk to human health and the environment is
significantly reduced by groundwater recovery and treatment. All site-specific
ARARs will be met. The Present Worth of this alternative is $2,~3~,~~~.
XII.
Selected Remedial Al ternati ve
A.
Description and Performance Goals
Section Ul of SARA and the current version of the National
Contingency Plan (NCP) (5~ Fed. ~. 47912, November 2~, 1985) establish a
variety of requirements pertaining to remedial actions under CERCLA. Applying
the current evaluation criteria in Table 1 to the four remaining remedial
alternatives, we recommend that the following alternatives be implemented.
The cleanup goal for all the groundwater flow zones at this Site has
been set at <1 ppb. This goal is consistent with the cleanup goals established
in the December, 1987 COA negotiated between PADER and the Site PRPs.
West Site Area
The selected alternative is alternative number 2. This alternative
includes vacuum extraction, groundwater supply treatment, and groundwater
recovery/treatment.
East Site Area
The selected alternative is altet'native number 5. This alternative
includes vacuum extraction, soil aeration, groundwater supply treatment and
groundwater recovery/treatment.
B.
Statement of Findings Regarding Wetlands and Floodplain Management
All excavation and fill activities during the remedial action shall be
conducted in a manner consistent with provisions of Appendix A of 4~ CFR Part 6.
The subject regulations have been entitled "Statement of Procedures On Floodplain
Management And Wetlands Protection." These procedures constitute policy and guidance
for carrying out provisions of Executive Order l199~ and 11988 respectively.
-------
- 25 -
The Remedial Design 0 the Rerredial Action shall be developed in a
manner consistent with Appendix A of 4~ CFR Part 6 to assure that potential
harm and adverse effects to the wetlands is minimized. The Remedial Design
has not yet been initiated at this time, therefore, specific steps to minimlze
impacts have not yet been identified. In addition, the effect of the Ra:nedial
Action on the wetlands cannot accurately be assessed at this time.
While all remedial measures shall be designed to minimize harm to
wetlands, it is possible that some adverse effects may be unavoidable. Should
remedial activity be expected to create such effects, restorative measures
shall be developed during the Remedial Design. Should anticipated adverse
effects occur, restorative measures shall be implemented as part of the Remedial
Action.
Schedule
The anticipated schedule is to comnence the remedial design by
January, 1989.
XII I.
'!be Statutory Deteminatioos
A.
Protection of Human Health and the Environment
The selected remedy will reduce, control, and eliminate the amount of
VOCs leachating into the environment at this site and will ensure adequate
protection of human health and the environment. No unacceptable short or
long term risks or cross-media impact will be caused by Unplementation of
the remedy.
B. 1. Attainment of ARARs
The selected remedy will attain the applicable or relevant and
appropriate requirements and are as follows:
Federal
SDWA
- M:LS
CWA
- Ambient Water Quality Criteria
RCRA
- Closure Requirements
State
Pennsylvania Clean
Streams Law Section
4~2
- Water Clean-up Standards
.
Pennsylvania Solid
Waste Management Act
Section 5~l
- Soil Clean-up Standards
Pennsylvania Air
Pollution Control Act
- Ambient Air Quality Standards
-------
- 26 -
2. Additional Requirements for Protectiveness
The selected site remedy must consider and be consistent with
the following:
Federal Executive
Order 11988,
Protection of
Floodplains 4~ CFR 6,
Awendix A
Federal Executive
Order l199~
Protection of Wetlands,
4~ CFR 6, Awendix A
Federal Clean Water Act
RCRA
C.
Cost-effectiveness
- Action to advoid adverse effects,
minimize potential harm, restore
and preserve natural and beneficial
value.
- Action to minimize destruction, loss,
or degradation of wetlands.
- Differential Groundwater Policy
Class II A aquifer.
- Land Ban Disposal Restrictions
The selected remedy provides overall effectiveness commensurate to
its costs such that it represents a reasonable value for the money.
D. Utilization of permanent solutions employing alternative
technologies to the maximum extent practicable
The selected remedy is the most appropriate solution for this
operable unit and represents the maximum extent to which permanent solutions
and treatment can be practicably utilized.
E.
Preference for treatment as a principal element
The preference is satisfied since treatment of the principal threats
were found to be practicable.
-------
APPENDIX A
-
.,-
-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION III
841 Chestnut Building
Philadelphia. Pennsylvania 19107
SUBJECTBendix ROD Clarification
pat:icia M. Tan, ~3HW17~;- I ~
FROM: Envlronmental Engmeer ~ ft;( . \
DA T~: SEP 2 ! 1988
TO:
Dave Crownover, Chief
Superfund Remedial Enforcement
Pennsylvania Department of Environmental Resources
Justification for Selecting l00ppb VOCs in soil as the Cleanup Goal
The February 4, 1985 Bendix Feasibility Study, which is referenced
in the supplemental Feasibility Study dated July 18, 1988, contains
a discussion of the "100ppb" excavation/treatment limit. (Both the
1985 and 1988 reports comprise the Feasiibility Study for this
site and are part of the Bendix Site's Administrative Record). The
rationale is as follows:
The hydrogeologic study indicates that the vertical contami-
nant distribution from the shallow flow component to the top of
the bedrock component in the bedrock flow system is approximately
logarithmic. That is, each succeeding flow component contains
approximately one order of magnitude lower volatile organic
concentrations than the overlying component. At the Bendix
Site, the Glacial Till Flow System, which overlies the Bedrock
Flow System, is comprised of two components. which are referenced
as the shallow compament and the deep component. For example,
under condi tions of maxiItl\.ll\ contaminant migration, approximately
1,000 ppb mobile contaminants in the shallow component results
in approximately 10 R'b in the bedrock flow system. Using
this as a guide, approximately 100 R'b of mobile contaminants
in the soils could ultimately result in 1 R'b in the bedrock
system under maximum contaminant transmission conditions.
This rationale was further explored in the literature and
verified in field leaching studies performed during the pilot
air-stripping program described in the report dated February,
1988.
.
The pilot air-stripping program focused on 5ppb as the cleanup
goal for the groundwater at the Bendix Site. This goal is
inconsistent with the COA that PADER negotiated with the Site
PRPs. The COA set < 1 R'b as the goal for groundwater remediation
at this si te. This cleanup goal of <1 R'b for groundwater has been
adopted in the ROD for this site.
-------
APPENDIX B
-------
Synopsis
Table 2.1
of Samples Collected and Parameter(s)
Bendix. South Montrose
RI/FS
Analyzed for
Analytical Parameter
PPL PPL Semi.
Sample Sample Sample Volatile Volatile
Location matrix TVDe Oraanlcs Oroanlcs Metals PCBs
TCE Storace Area:
ST -1 I soil arab X X X X
. I
Solvent Evaooration Area:
SE-1 I soil arab X X X X
I
PiUTrench Dis :3osal Area:
SP-1 soil arab X
SP-2 soil arab X
SP-1+2 soil comcosite X X X
SP.3 soil arab X
SP-4 soil arab X
SP-3+4 soil comcosite X X X
Old Landfill Area:
S L.1 soil arab X
SL.2 soil arab X
SL-1+2 soil comoosite X X X
8ackaround Area:
S8-1 soil arab .X X X X
S8-2 soil arab X X X X
S5-1 sediment arab X
sediment comoosite X X X
-
MW-9 water arab X X X X
8 - 1 water arab X X X X
8-4 water arab X X X X
8-5 around water arab X . X X X
Pond 1 surface water arab X X X X
Pond 2 surface water arab X X X X
Parkina lot surface water arab X X X X
TIle
~
-
-------
Figure 2-4
Surface Water and Sediment Sampling Locations
Supplemental RI - 1988
~J
.
I
.1
o
.... ..
...... ........
Q
C::J
i
r:::::.~
'- "-
"- ..:::----
,
8-1 , tiC)
8 ./
-_../// -."...
\1;8-3 "'m ~S8-1-W-~
...---...""""'-~-:JIIII!!I -.-;-: ~.-:
::: ~i?S!5~~
~=- ~=--~
-= ~~-,,~
~,
UI .,001 '\..
~.."...
LEGEND
8-18 Surface Water Sampling location
-----
- ". ..- ". Intermittenl Stream
85-18 Sediment Sample Local ion
..
N
o 100 200
, --
400
.,nt_1
-------
Figure 2-1
Soil Boring Locations
Supplemental RI - 1988
W
No.1 Pond
[ [00 .........
r-.----- Sl-1~.~-2------~~~,.
£:-s----- ~ 0 ~~...
~ ~,....
f Fonner Drum L. - : L---JI' "", Q
- &or. AlUI..< - -. SP-~ 8 "" 0
T,1III8bnw 0 rL -. J /; 8 SP-3-,
TCE &or. AI"hi-i SE-1". :SP-2 8 . :
I ST-1f8~IAW-8 jL_-------/~~P-4
/ Old ~'8nCh
0Isp0sM AI..
PlANT I P'1Mous l~ 01
SoMQ Pl5"~""'\
I Sv-m
OffICE
l
l
--.-.J
8S8-2
. IAW-3
8S8-1
~ / / SW,"IIV
.~ ~7
, -~:.
, !' -
, : _:..: -
\~---
\":. .;'c
,. , . - -
\ -. ~- -
\ . =7
~ House
No 2 Well
f!
~ ~ T,atlslo,
-----_fJJe,
---
- ------
----.....
~
~~
o Pump 'kill:'''
No :t WcU
--
lEGEND
58-18 Soil Boring
UW-9. Monitoring Well
.
N
.
Scdlu '" t cC1IAI1"".,"..,ILI
o
.
100
~'tllJ
I.
-------
Figure 1-4
Monitoring Well Locations
ERM -1984
..'
No.1 Pond
i
l
'LEGEND .-.~~.-.J
. Bedrock We. - ERU. 1984 (4)
o Shallow Overburden We. - ERU. 1984 (2)
~DeepOverburdenWe.- ERU. 1984 (5)
. Deep Boring - ERU. 1984 (2)
.- -, ..,
L _...J Potential Source Area lor Organic Solvenl Contamination
SW-1 Pond Sample location
PS-1 Pond Sediment Sample location
,
\ --
\ 0
) Pump House
No.2 WeM
~!~~n
~~(
-.:.::~
----- ~
~~
~, ,
'~
o Pump lIolI:'u
, No 3 Wcd
..
N
o
WCI
."..
. - J
Sc4Iu I..fccl/AI'I'''""",,'''I
.,
I,
-------
Figure 2-5
I Phase I Monitoring Well Installation Locations
No.1 Pond
r-
L -: ~
r"-----_- ---. [;:J 0 Dr~ay
I ......-r;'?T~5f--",- 0 ".88-13
"8g8A1"',.~... 88-14.' "''''''-
. 0 .. - - .:: /: :
T,8n8IonMf - . .,
-- '. ,
TCE SIor8g8 AI.. ; -, :..
/ -'...w-g l______-tooln~:;'2lR1
~ Iv..
I p,.vtoualoc;aUon 01
RANT SoIIt8Q Evaporiilion8aa-15
S~......
I
l
l
. --..-.J
~.~~ ~W
-------
Figure 2-2
Ground Water Samrling Locations
Supplementa RI - 1988
4
{)
N
No,I Pond
r-
-.
. . C\Ien,,~ ,
r--~ --- - -. Ul't1Iru~-
. -"- r--. 0 -=-~4"
- - ----...... ~
~-. Cj"::;'l"........
~. ..... Q
1 FOfIII8I Drum
-------
Figure 2-3
Air Monitoring Locations'
Supplemental RI- 1988
I ;/' Prevailing Wind DlreClion
No.1 Pond
<) [] . Old UndIII Alea
r"--",-- Ait~....
~.._---- (;J 0 ~...
~ ' r-.!::Jl"'"
/" fcImw Dnn-
o ~ Hou:ou
No3Wcli
LEGEND
..
N
M
o
100
;'00
.
Air Moniloring locations
I
Scald In ft:tI' (Ai'Vfu,,,,,:",,,
I,
-------
Table 3-7
Results 01 Air Sampling with Organic Vapor Meter
Supplemental RI - February 1988
voc
Concentration
Location ~
A1 0.1
A2 0.0
A3 0.0
A4 0.1
AS (upwind) 0.1
AS (downwind) 0.0
ppm above calibrated background
.~
-------
Figure 1-3
Location 01 Soil Borings and
Monitoring Wells - Chester Engineers
~~I~
r-
B-1. -: ~~
:._~-- --I [;::J 0 ~...
I --9T1J:JJr.B-~., o.
&lor. AI..._~ B-38 8 B-" ~
UW-1280 8UW-13 ,: :
I '-B 88 8B-7 8B-5~
1IW-11 -t-TCE 50. Alea '. -IL 8B-6 : 80-10
UW'1~.1 -.~-14 h_. -1::::://
UW.10 I'LAHT I ",=~OI II
SvAlm 80-9
I UW-38
it
LEGEND
. Bedrock Wen - Chesler Engineers. 1982
8 ShaUow Ov~rburden WeU - Chesler Engineers. 1982. 1983
~ -= J Polential Source Area 'or Org~nic Solvent Contamination
SW-1 Pond S~mple Location
PS-1 Pond Sedimenl Sample Location
~ House
No2Wtill
~~_~.SWdll~
,--....-
I ,. -
, ;-, -:: --
\ ~ - -
\ .~ ,
,-
,
-
\--.-
\ o. - .
UW-8
--. J
-.
PubIJc fio
-'- aa l,.......",-
- - - -QOUfIflttr
--------
-~-
------ ----- --
-------....:~:-.....
--~
l) Pump 1t1l"~U
- No 3 WeM
.
N
o
1110
~'t M)
'- I
&:dlol II. "eel (A"."...."....".
.'.--~---._.
I.
-------
Tabla 3.,
AllalWllcal Haaulll 10' Yola"le Ind SlmI.YoIaUle Organic Compoundl and pca. III 5011. and Sedlmen'l
Supplemenl" HI - ,....
;. .
fSMlDi8. Loc8l1oll ST., Sf' -1 Sl-1 Il-2 Sl- 1+2 sp., SP.2 5P-3 5P.4 SP.1+2 5P 3.4 58-, 58.2 SSe J
IOaDa"- 4-" .-4. . - l' 1-4' 4." 0.2' 1." 0.2' 4.1' ['comDI 4.1' comD' 4.1' 4 -,' -.oil -."
IDIit. t'l .,..- "..,.. ,It .,.. t,I I'" t'l "., 211"" 211"" 2111/1' t/l'II' 2/1'"' 2"1/'1 2/1"11' tit II" 211118.
I.. ........... 11 .1 't.' 12 tI.8 .. 17 17 21 US e.8 " 12 -,.
111
V"""" OM.... ~ We We
:
dIIDrIda 58 . . ,. 118 108 18 '8 78 78 38-
r8<:.1 .... u. I . Ift. .a 148 78 53 8 4S A .. 58 SO
1~ . 2.1 2.1 t _J
1 ."Io:hIorHlllefta 4.1 3.1
1 .4III1dI1or08-"'"
1 '.4III1dI'---1I. 1.1 2.1 2.1
1 '..oIIdoIM08- -'to.... JJl ,. 4.1 270 .I 2.1 2.1 1.1 2.1
".-,1 '.01"'1\ 270
. 'I 15 8
.. .AM.I , . .. 17 18 13 la 46 .I
~ 2.1 2.1 1 B
08- Ilia .I 21
1 .1,"'1\''''0 II.". 5.1
,.... ... ..
4.. li\Wi~"," IUO'" 18 38
1 1 1'181'
1 I
I~ I. II 2A
, ,-.1
,- --- 11 . 38 38
0.."" .. .. .. HI'. ~ HI'
:
=8dd 2116 J
&11 100 I .78 608 ..8 888 718 104 0
45.1
dI. . u. DI 7.8 S38 4'" 8 74 B 118 12!) J
..1 120.1 88.1
130 180 .I 130 .I
...,- ItO 180 .I 150 .I
"'818'''' 438 388 398 40 II
""~"'I 11.1 71.1 63.1
= 71.1 82.1 74 .I
1W1. !1811 B 180 8 1408 ISO B ~A 2908 300 II
-" .I - 'M 70.1
",,-06111 47.1 ., .I S8 J
, ".I 100 .I S7.1
I~..... N) N) .. We N) ~ ~ We ~ N> N> N) to .---
N)
~i
I~':
QuIIIar CotIa8:
8; ,.. ...., II 01 ~1IonaIII8 qu8lll8llwa aIgnIlcanc8 .w. II1II CGlllpound ... 1110 dIIl8Clttd In . blink I' 1 aInIIlar concllllllallOll.
j; ,.. ...,. 8hou6d III conaId8Iad 1 q&I8NItatIvl _n-.
NA: ,.. ~... - nol anaIwled Iar ItIIa ,.,---
N): - dIoI8ca8d
All ,eau118 In"'" : Drw .1tIgII1 CQI,eclttd
-; lMae iMlpII '_"'Ii lIa,aponrtd 011" 'aaNvad N$I'
-------
Table 3-3
Analytical Ae.un. lor Metal. In Soli. and Sediment Sample.
Supplemental AI . 1888
SarftD18 Location ST.t 8..:1 SL. 1+2 SP-1+2 (comp) SP 3+4 IcomD' S8-1' 58-2' 55."
deDlh ".1' t.... ".8" 4-8" 4.8 I 4 - 8 I 4.&"
Dal. SamDIed 2111/11 2/.../11 2/15188 2/16/88 2/16/88 2/15/88 2/15/88 2/17/88
Mol.lur. % 10.5 17.1 18.6 12.5 9.8 11.6 11.8 87
Inoraanlc
Con.tltul.nt.:
.ndmonv
bervlllum 0.6 0.6
cadmium 0.8
chromium 17.8 12.2 28.3 J 17.1 17.7 19.2 18.1 12
22.3 13.4 20.9 22.9 18.8 21.5 19.3 90
m.rcurv 0.3
nlck.1 22.3 12.2 23.3 22.9 23.3 22.6 20.4 8
.lIv.r .. 3
.runlc 12.3 8.5 11.1 J 12.6 11. 1 10.2 11.3 1
. ~Inc 82.8 40.2 65.1 80 65.4 67.9 57.& 77J
lead 13.4 B 12.1 B 17 B 17 12.3 B 14 B 20.4 6
..Ienlum
Ihallium
Quail. Cod88:
B: Thi. r8IUII .. 01 quuUonabI8 quallaave &lgnUlcance slnee thil compound waa aslo detected In a blank at a similar concenlfalion.
J: Thi. raaula ahouId be c:onaId8red a quantllalv.8 8IIImata.
All raault. In mg,1&g : DIy W8Ight COIrected
. The.. n"", r8lUlla ara reponed a. r8C8lved
. Bad90und Sampl8a
~:i
~-
~,
-------
Table 3-2
Comparison 01 1a84 and 1988 Volatile Organic Data for Soil Samples
Bendix-South Montrose
BorinQ Location
Range of
Total VOC..
1984
(ppb)
Total VOCs
1988
(ppb)
Former TCE Storage Area:
ST-1, 4'-8'
NO to 10,560
139
Former Solvent Evaporation Area:
SE-1, 1'-4'
40 to, 184,700
968
Pit/Trench Are.:
SP-1, 0'-2'
SP.-2, 7'-8'
SP-3, 0'-2'
SP-4, 4'-6'
NO to 3,000
60 to 260
NO to 3,000
ND to 40
444.4
24.2
71.1
64.3
Old Landfill Area:
SL-1, 0'-1'
SL-2, 3'-4'
4,700
4,700
1 4
40
. Range given for samples taken from approximately the same depth.
~
-------
Anal~Ucal Re.ult.
Table 3-4 .
'or VolaUte' and Seml-VolaUle Organic Compounds
Ground Waler and Sur'ace Waler Samples
Supplemenlal RI - 1888
and PCBs
Sample Locallon B-1 8-4 B-5 UW-9 S-1fparklnq 101\ S-2 'Pond' S-3 (Pond 2'
Da.. Sampled 2117/88 2/17/88 2/17/88 2/17/88 2/17/88 2/17/88 2/17/88
1
Volallla Oraanlc -
ComDOUnd.:
loluene 2808 . ' 200 8
elhYlbenzena 780
vinyl chloride 1 200
methylene chloride 700 8 30 000 8
, 1-dlchloroelhane 500
tranl-1 2-dlchloroelhene 7.300 , 400 20 000 4 7
chloro'orm 808 800 28
, , '-trlchloroelhana 50 4 900
carbon lelrachloride 20000
Irlchloroelhana 380 39.000 980000 6 5 80
letrachloro"h8na 1.000
Sa.lvola'" Oraanlc
eo.DOUAd8: N) N) N> N>
Phenol 28 8
dlmelhYi phlhalale 63
bls 12-elhvlha.yn ohlhalala 228
'Iuoranlhena 10
PCB.: N> N) N) N> N> N>
archlor 1242 13
Quail... Codes:
8: This result I. of questionable qualitative signficance since this compound was also detected In a blank at a IWmilar concentralion.
J: This reaull should be consld8red a quanlilalive 8sdmat8.
NA: This sample was no8 anal'ized lor this paramet8r.
~t:iD: none d818C88d
.... ~ ,.sub. In ug/1
~':
I,
-------
Tabla 3-'
Analytical Heaulae 'or lIe18', in Ground Wa.er end Surlace We.er
Supplemen.el HI - 188.
; Bendl. Drinking
5-1 5-2 S-3 Production Wa'er
SemDle Lacellon . -1 B-4 B-5 IIw-e fPerklna Lon fPond1' 'Pond 2' Well S'.nd.rd.
0... S8m1Dled 2/17"1 2117111 2/17/11 2/17/18 2/17/.. 2/17/88 2/17118
Inora.nic Con.Uluenl.:
Antlmonv NA -
Bervlllum NA -
CadnUn <5 5
Chromium <50 120
60 40 40 30 40- 70 1300
Uercurv 0.8 NA 3
NIdi.. DO <40 -
Sliver <10 50
Ar..nIc 10 10 10 NA 50
Zinc 20B 250 40 B 220 30 B 80 30-40 5000
lad 10 B 115 <50 20
SelenIum - NA 45
Thallium NA -
A........ Codee:
B: ThI8 red Is 01 que8IIon8bI8 qualitative UgnIbnce aInc8 tie compound wae .110 ttelec841d In a blank at . e!milar concanlraUon.
J: This red 8houId be canaId8Ied . quanIi8a_ve e8llma18.
ND: none d888ded
NA: Hal analyzed tor
- : none ava118b18
.: R8aonm8nd8d IIuJrrun ConIarrinanI1.8w1
~l
-------
Table 3-5
Comparison 0' 1984 and 1988 Volatile Organic Data for Ground Water Samples
Bendix - South Montrose Supplemental RI
Range 0' Total
vOCe Total VOCs
Monitoring 1982-1984 1988
Well (ppb) (ppbL-
MW-9 1.338.100 . 380.472 1,030.000
8-1 8.075 . 3.360 9.570
8-4 not sampled 1,890
8.5 329,400 . 19.927 67,300
W1i
-
-------
c .pasf
8 .WIO
A.P~
HIS 1 ORICAl WO DA U
RESIDENIiAl WEllS. VOlAJIlE ORGANIC RESUUS (ppbl
f."..
loe TAP SAWPl E TOUl E U'WI. c:hlolo.
, DAlE VOlATILES TCE e.n..n. e.n..n. .'h.n.
. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. ... .. ..'
A 01113/1. 0 °
A 04l22/U 0 °
A 011l2/1!! ° °
A I 1I04/1!! 0 0
A 01/06116 ° .
A 0!!/06/16 0 .
A 01/0!!/16 0 .
A I 1101/11 0 .
A 01 '2"87 0 I
A 11105187 0 I
A 02/03111 BAD. I
A 04120/11 0 0
Chlolo.
lI.n..n.
TI.n.-1.2.
cllc:hlolo.
.1I,.n.
Chloro-
lorm
Dlb,omo-
c:h'oro.
m.th.n.
................-.. ..
.......... -..--....
....... -..............................
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... ........ .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
2 C 10102/84 4 0 1 3
2 C 11/14/84 0 0
2 C 12104/.4 I 0
2 C 03113/'$ 0 0
2 C 01124115 0 0
2 C 01112/15 0 0
2 C 11104/15 0 0
2 C 01/06/" 0 0
2 C 03110/" 0 0
2 C 0$10111' 0 0
:I C 01121187 0 0
2 C 04/21187 41 0
:I C 07/22/87 0 0
2 C 11/01/.7 0 0
2 C 02103111 BAD. e 0
:I C 04120/11 0 0
2 B 10102/14 0 0
, 2 B 11114/.4 0 0
2 . 03113116 0 0
2 B 01124/15 1 0
2 B 01112/.5 0 0
2 B 11104/15 4. 0
2 B 01101111 0 0
:I B 03110/" 0 0
:I . 06101111 0 0
2 B 01121/87 0 0
2 B 04127187 0 0
2 B 01122/17 0 0
2 B 11101/87 0 0
2 B 02103/11 BWDl 0
:I . 04/20/11 BWDl 0
.. .. .. .. .. .. .. .. .. ... ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. ..
, olu.n.
.......... -........
................ -
fILTERS HECHARGED .....
fIlTERS RECHARGED. . . . .
48
fIlTERS RECHARGED... - .
. - - -PRE L'M'~lARY... _.. - - --
. DATA
[),\ TE
Ui,TA [UTE REO
-l~..~E'Ji[\\!EO
---
(.'AiE
1.2- d I.
chlolo-
eth.n.
O4Inllll A."050paC8
30t 06
Potg.. 1 01 I"
- . - - - - .. - .... .. .. .. .. .. - .. .. - .. .. .. .. .. .. .. - . .
Wethwl.ne
c:hlorld.
2-r:hlo,u.
.'hl/hl"",.
eth.r
8WDl 8
. .. - .. - .. .. .. .. - .. .. .. -,'" ... ... .. .. ... .. .. ... .. .. .. .. . .. -
BWDl B
01186
, 11.6
III' 7
o
37 S
BWOl 8
4
.. - .. .. .. .. - .. - . .. - - .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. - .. - . .. .. . - -
DUO&. 8
BWOl 8
-------
fOST
b 'WIO
A . Pft£
lOC
,
TAP
&AWPlE
DATE
"'''''''''''''' .......... ..... ..... ..... .. .. .. .. .. ".."''''''''''''''''''''''''' -..................................."'''' .. .. ........ ..... ... .. ... ... ........ .. ... ... .. .... .. .. .. .. .. .... .. .. .... .... .. -.- -." .. .. .... .................. - .. .. .. - - .. ... .. .. -
2
2
2
2
2
2
2
,
2
2
2
2
,
2
2
,
2
,
J
J
01/13/14
10/02/14
11/14114
12104/14
03113115
04122/15
01124185
01112/85
11104115
0110611'
0311011.
05/01/11 .
01/05/11
11/05/11
01121117
04/27117
07/22/17
11105/17
02/03/88
4/20/88
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
TOTAl
VOUTILU
13
.
1
4
o
.
7
21
11
o
o
310
o
o
o
o
o
o
....
o
tUSIORICAl WQ DATA
RESIDENTIAL WUL& - VOLA11lE ORGANIC RESUL IS (ppb)
TeE
EIIIVI.
a.n.....
I.In.
chlo,o.
.U,....
Chlo,o.
81."18".
".".-1.2.
"Ichlo,o.
.Ih....
lOlu.n.
..................... -............. ................................-
W.lhVI.n.
chlo,ld.
2.chlo,u.
.'hVhlll~l.
.Ih..
Dlb,'omo-
chlo,o.
m.lh....
Chlo,o.
lo,m
u
.
.
.
.
.
.,
II
11
.
o
a.o fIO'IUfJlALUI SRJ\.RESLLTS TO BE \IEAF£O
o
o
o
o
o
o
o
o
a c 02/22115 0 0
a c 01124111 0 0
a c 01112/1' o . 0
a c 11104185 0 0
a c 01106/1. 0 0
, a c 03110/11 0 0
.. a c 05101111 0 0
a c 01lU/17 0 0
a c 04127/17 0 0
a c 11101117 0 0
a c 02/03/11 0 0
a c 04/20/11 a 0
a a 02/22111 0 0
a 8 01124/11 0 0
a 8 01112/1' 0 0
a 8 11104185 0 0
a 8 01101/11 0 0
a 8 03110/11 1 0
a B 05101111 0 0
a 8 01lU/17 0 0
3 B 04127/17 0 °
3 B 11/0"17 0 0
3 B 02103/11 0 0
3 B 04/20/11 .... 0
"'''''''''''''..''' ",..",......... ....................-....... ..................................-..................................................
a..,.".
2
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... - ... .. ... ... ... .. ... ... ... ... ... ... ... ... .. ... ... ... ... ... ... ... ... ... ... ... ... ... .. .. ... ... ... .. ... .. ... ... ... ... .. ... ... .... ... ... ... ... ... ... ... ... .. ...... ............",.................. ... ... ... .. ... .. ... ... ...
1.2. dl.
chlo,o.
.Ih....
&n".., Ae.ospac.
301,06
Peg. 2 o' II
°
......... ............. .....-............-...---.......- - -.. - - - -.
BWOL 8
fll TER RECHARGED. - - - -
fUER RE~GED . . . . .
fUER RE~GED . . . . .
~.. -------~-_..__..- ...
01/86
12/16
11111
38
tJ ~I~) F I f r~l i {-.) t~ fi-11 '::
. .- . .- I BWOL 8
. -. . - . . - .. . -lJ l\ '~f' i\. ....... . - - - - - - . - - - . . - . - - . - . . . . . . . . . - . . - - - -. . . - . - . . . . . - . . . . . ,
--- ----------
--..--
-- .. --_.
L.\: l.
- . [" J . l I' r:' ,
\ ~~ '." .. 10: '-'
"
-------
..
.10
.-PRE
HISIORICAL WO OAIA
RESJOEHIIAL WEllS - VOlAIIlE ORGANIC RESUL IS (ppb)
Otond.. A... ospac-
301.0ti
PiIjI- 3 0".
LOC
.
TAP
SAMPLE
DAlE
TOTAl
VOlATILES
TCE
B......
E.hyl-
B.n..".
T.".-
chloro-
.Ih...
Chloro-
8I.....n.
Tr.".-1.2-
.'chlor 0-
.111...
Olbromo-
chloro-
...111...
Chloro-
lorm
T olu...
. ,2 - d I-
c"Moro-
.Ih...
M.lhWI...
chlorld.
2-chloro.
.'hwhlny"
.Ih.,
.. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ...
............ -.... ........................................
-................ .
. .. . .. - .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . .
:I A 01"3/84 3 :8
:8 A 02/22/11 7 7 .
3 A 04/221U " 11
3 A 06/24/11 0 0
3 A OI/U/IS 7 .
3 A 1 H04/1S 7 .
3 A 01/06/86 . 4 ,.
3 A 03/1 OIl' . 4
3 A 01/01/11 11 11
3 A 01/01/1. . .
3 A 1./05111 11 11
3 A 01121/17 11 11
3 A 04/27/17 . .
3 A 11101117 ao 10
3 A 02/03/11 . .
3 A 0./20/11 10 10
IWOl 8
BMOl 8
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. e. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .................. .. .. - .. .. .. .. .. .. .. ..
.......... -.......
.. -.o. -.....----..-............... -...... -....
. C 08/12/.4 . 2 0 2 2 0 2
. C 10102/'. . 0 a 2
. C 12/041'. 0 0
. C 02/22/1S 0 0
;. . C IH04/1S 0 0 0
. C 01101/81 0 0 fillERS RECHARGED. - - - . '"16
4 C 01121117 0 0 fILlERS RECHARGED - - - - - "'81
4 C 11101.,87 12 12
4 C 02/04/11 0 0
. C 4/20/88 J 0 28
4 B 10102/84 J . J 0 0
4 B 02122/1S 0 0
4 B 11104,.1 1 1 0
~, 4 8 01101/11 0 0
. 8 01128/87 0 0
4 8 11/01/.7 0 0
. 8 02/04/88 8IIIDl 0 BMUl 8 BUOl B
4 8 04/20/11 J 0 28
4 A 011.3184 II .0 2 4
4 A 01182184 4. 31 2 :8 .
. A 10102/'. ... 73 8 .
. A 12104,.. II II
. A 02/22/1S II U :8
4 A 11104111 II II 3
. A 01101/" . .
4 A 01101/11 . .
4 A 11/01/11 70 .7 3
. A 01121/87 ... ...
. A 11101,., ... ... PRELIMINARY
. A 02104188 10 10
4 A 04120/11 11 U ao.8 28 (Wus
.-.. - - - -.. - - D-A T A- -. - -.. - - - -. . - ... e. ... ... ... ... ... .. ... ... .. ...... .......................... .. ... ... .. .. .. .. .. .... .................. . - .. .. - ... .. .. .. - .. ... .. .. .. .. .. .. .. .. .. .. .. .. - .... ..
.. .. ... .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .... ... .. .. .. .. .. .. .. .. - .. .. .. ...
---
. . . - '-."'" )
.. . .;\ L..: ~ I ~- i ';.....
. '.,"
~...L.:
.. ----~..
.....-..,..-
.._---~
. "
-. .,
; 12
-------
~IORICAL WO DAIA
RESlDEHIIAL wars . VOlAIIlE ORGANIC RE5UL T5 (ppb)
.r
.10
I'ftE
Dando. Aa'dIII
301.06
Plljla40111
T.lr8-
. chloro-
.Ih....
Tr8...-1,2-
.Ichloro.
.Ih....
Dlbromo.
chi oro-
m.lhana
1,2 - dl.
chlo,o.
.Ihana
2-chlu,u-
.'h,hlnwl
.Ih..
E,..,I.
aan.a...
Chloro.
ban.ana
6A..PLE
DAlE
TOIAl
VOlAIIlES
TAP
Chloro-
I..,m
lOC
.
".Ihrl.n.
chlorlda
TCE
aan.....
lOlu.n.
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... - .. .. ... ... .. .. .. .. ... .. ... ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ..
...........-...... ..
""""'.""""""""""""" ..
.............. .
. . . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .
~ C 09112/114 3 :1
~ C 08/2"14 0 0
~ C 12/04/14 0 0
~ C 02/22/1$ 0 0
~ C 04/25/1S 0 .
~ C 06/24/1$ 0 .
~ C 01/1211$ 0 .
5 C 11104/1$ 0 .
1 C 01/0"11 0 .
1 C 03110111 0 0
1 C 05/06/86 0 0
5 C 01121117 0 0
~ C 04121/17 0 0
1 C 01122/17 0 0
1 C 1110"17 ° 0
1 C 02/04/11 .... 0
1 C 04/20111 0 0
1 B 01/21114 0 0
1 B 02122/11 0 °
. B 04/21111 0 °
1 B 01124/11 0 0
1 B 01112115 1 1
.. B 11104/11 1 1
1 B 01101/" 0 °
5 B 03110/1. ° 0
. B 0110111. 0 0
. B 01121/17 0 0
1 B 04121/17 O. 0
. B 01122/17 0 0
. B 11103117 0 0
1 B 02104/11 8foM)l 0
1 B 04/20/11 0 0
I A 01113114 .2 20
. A 01112114 .1 II
. A 0112"14 U U
. A 11104/.4 II II
. A 02/22/11 J J U
I A 04121/11 . .
. A 01124/.1 U U
. A 01112/.1 U 30
. A 11104115 U 2J
. A 01101/1. 10 10
. A 03110/" . 5
. A 011011" . .
. A 01101/" . .
. A II 105/11 28 U
1 A 01128/17 I .
. A 04121117 n 0
1 A 01/22/17 "13 '"3
5 A 11/03/17 U I'
5 A 02/04/11 10 10
. 8113 . r861111 1r0l1l l8nc8618r L8bo18l11riea1re6UI1 1r0lll Cambridge en"'8C8I
~ A 04/20/11 5 5
°
o
o
BOIH flUERS RECHARGED - - . . .
01/1'
BOIH FI..IERS RECHARGED - . . - .
1 III'
PRELI(\II'Nj;.I~ ~(
0/.\ T i\
BOIH FUERS RECHARGED - - - - .
11/11
0M0l B
BMDt. B
-
........;.:
~. . ~ [NfiREO
~. . .,\
;.
°
-(;i\ I E
-- -
.' -'vlr-\,.~; ."\.
O - , ... a.l >- ,.. - J
I'\'~ .... -,.",
DMOLB
8MOL B
..'
2
3
.
4
II
.
4
2
1
50
30S
11 °
8MDL
IIMOl 0
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. o.. .. .. . . - .. .. .. .. - .. . .. - .. .oo .. . .. ... ... . ... ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. . .. - .. .. ... .. .. .. . .. ... ... .. ... ..... .................... - - . - - . . . . .
-"....... -.
-... -... _...... - -...." -... _...
I.
-------
C - POS'
8 -1110
A-PRE
HISfORICAl WQ OAU
RESIDENflAl WEllS. VOt.AfIlE ORGANIC R£SUlfS (ppb)
Bend.. A,"ospac:e
301.06
Pag" ~ 01 I.
LOC
.
UP
SAUPlE
DAfE
TOJAl
VOt.A'IlES
ICE
B...,...
Elh,l-
B.nl...
T.I..-
chlolo,
.Ih.n.
ChloI.-
".nl.n.
',.n.-8,a.
.'chlolo,
.Ih....
Dlblomo-
chlolo,
m.lhana
Chlolo,
101m
10Iu.n.
I. a. d I. .
chlolo,
elhen.
U.lhyl.n.
chlolld.
a.chl....."
.1"y"'l..yl"
.Ih.,
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .... ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... ...................... .. .. .. .. .. .. .. .. ..
................ ..
.. .. .. .. .. .. .. .. - .. .. .. .. .. ...... .. .. .. .. ... .. .. .. .. .. .. .. ..
6 A 01113/14 0 0
6 A II 104/1S 0 0
, A 01106/16 0 0
, A O!l/01/1. 0 0
. A 01/0~/11 0 .
I A II/O!l/U 0 .
I A 01/21111 0 .
. A 04/21111 14 .
. A 07122111 0 .
. A 81/0!l/11 0 0
. A 02104/11 N)L au.
1 A 04/20/11 0 .
40
805
BUOl B
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. ... .. .. ... .. .. .... .. .. .... .. - .. .. .. .... -........ .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .... ........ .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
.. .. ... .. .. .. .. .. ..
.............-.............-.-.....-....... -
7
A
0" 1 3114
o
o
.. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. _.. .. .. .. .. - ...... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. ... .. .. ... .. .. .. .. .. .. .. .. .. .... .............. .. . . . . . . . . . . . .
.".......'........-."""""..oO..""- ......-
. C 01121/.4 0 0
. C 1 "141'4 0 0
. C 12/04/.4 0 0
. C 02122/.5 0 0
. C 0"2411~ 0 0
. C OI/UII~ 0 0
;. . C 11104/1& 0 0
. C 0"01111 0 0 FILlERS RECHARGED.. -. - 011.6
. C 03/10/" 0 0
. C 0~/07/11 0 0 FILfERS RECHARGED. - - . - 121.6
. C 01/28187 0 0
. C "/05187 0 0 FILfERS RECHARGED. - . -. 111.,
. C 02/03/11 O . 0
. C 04122111 2 0 28
. 8 081261.4 0 0
,-" B 8"84114 0 0
. 8 02122/11 0 0
. . 011241" 0 0
. . 01112/15 0 0
. 8 11104/11 0 0
. B 01101/" 0 0
1 8 03180/" 0 0
. 8 OW 7/11 0 0
. . 01128/87 1 0
. . 1 1/0~1I7 0 0
. 8 02/03/11 0 0
. 8 04/22/11 BAD. 0
.. . . .. . .. .. . .. .. . .. . .. .. .. . .. . .. . . .. . . .. .. . . . . .. - . .. .. . .. ... .. .. .. .. .. .. .. .. .. . .. .. .. .. .. . . .. .. .. .. . .. . .. .. .. .. . . .. .. .. .. .. .. .. oO' . .. . . . . . . . .. . - - . - - . - - - - . - . - - - . - -
8UOl. 8
- - - - ....-.
- . - - - - . - - . .. - . . .. - - . . . - - . - - - . . .
PRELIMINARY
DATA
C,",fA [NTEnED
L/', iE
--
DAf A RL V!EWED
L'.\il
-------
C-P05T
8 .MIO
A-PRE
LOC
,
TAP
'AMPlE
DAlE
TOTAL
VOLATILES
TCE
... .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
I A 01113184 I I
I A 09126184 U U
I A 11114114 4 4
I A 12104/14 S I
I A 0212211S U 11
I A 04122185 2 I
1 A 06124/15 . .
I A 01"2/15 0 .
I A 11104/1S U II
I A 01106186 1 1
I A 03110111 a a
1 A 0S/07l11 1 1
I A 01105/11 a a
1 A 1 11OSI11 11 11
1 A 01/28111 a I
1 A 1 IIOS/I1 . .
1 A 02103/11 a a
1 A 04/22/11 .. a
~ I ORiCAl WQ DA fA
RESIOENIlAl WElL& . VOLATILE ORGANIC RESUllS (ppb)
8........
ElhVI-
8........
T .1,..
clllo,o-
.Ih.n.
Chlo,o.
".n..n.
T,a....1.2-
~Ic:hlo'o-
.th.n.
Dlbromo-
c:hlo,o-
m.lhan.
Chloro-
lorm
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .......... .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
;.
10
10
10
A
A
A
01113/14
01121/81
04/11/81
o
o
o
o
o
o
.. .. .. .. .. .. : .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. -. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .... .. .. .. .. .. .. .. .. .. ... .. ... .. .. .. .. .. .. .. ..... ...... .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. ..
11 C 08112114 0 0
11 C 01121/84 0 0
11 C 11114/84 0 0
11 C 12104114 0 0
11 C 02/22/1S O . 0
11 C 01l24/1S 0 0
11 C 0"12/1S 0 0
i.' 11 C 11/04/1S 0 0
11 C 01101/11. 0 0
11 C 03110/11 0 0
11 C 0S/07l11 0 0
11 C 01128/81 0 0
11 C 04127/11 0 0
11 C 02/03/11 0 0
11 C 04/21111 .... 0
11 8 01121/14 1 0
11 B 11114114 0 0
11 8 02/22/85 0 0
11 8 0.,24185 0 0
11 8 0"12/1S 0 0
11 B 11/04/1S 0 0
11 B 01101111 0 0
11 B 0311011' 0 0
11 B 05/0"11 0 0
11 8 01128/87 0 0
" 8 04/27/11 0 0
11 8 02103/11 0 0
11 B 04121111 Ba.IDl 0
.. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. ... .. .. ..
,.
o
PRELIMINA~& ~(
DATA
-[[[ ..
L. .., [.N IlnlD
. . ,"
L.AIE
-----..-----
...-----
r .. , ~..
o
o
o
o
o
o
, ol...n.
. -.............
.. .. .. .. .. .. ... .. .. .
1.2. d I-
chloro-
.th.n.
I)'lnll.. A... 011
301.06
Pagll 6 01 18
.. . .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .
M.lhrl.n.
chlorld.
2-c:hlo,o,
.1"r"'I..,I.
.th.,
.. .. .. .. .. .. .. .. -. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. . .
1 B
.. .. .. .. .... .. .. .. . .. .. .. .. .. .. .. ... - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . . -
fILTERS RECHARGED. - -.-
fILTERS RECHARGED - - - - .
fIlTERS RECHARGED - - - - -
0"1"
1 "I"
12/11
-------
TABLE I
EAST SIDE
SlUMMiy
Sot Aaraaarv (bound
J -- OM «la OujMMal AAamalwa i - Soil
Vacuum frlracaan, (Wound Wafer AU»in*tn» 4 •• Vacuum £*»acao/i Awafton, Vacuum
AJ ARAf* wll ba mat
AH ARAH* •• to IML
At AflAfU Ml to iMi
Required due to Not applicable
Land Ban restrictions
Cenytmt «Mt Mil* and Com^lHtt M*I tute and
l»c«l criUria and tocal ciihuia and
ladwal advUona*. tadatal
AHARAftoatfbaiMl
Not applicable
C«npUM M»I MMa and
local oMaria and
Mak at dbact canatci i
al dbacl conlacl
Nwfc ol dvacl conlacl M»I
comananalad no** and dual
at Md§ bam tandM and
at ataaa; almdat taducion al i»k
by Mabnanl al *oM». oMUamnant
a»y>>an bam an tda Mil* la
paund Mgnlacanty taducad by
•at kaaMMAt iMk to human
naatti and ttia anAtonmani
•Igntfhcandy laducad by
ilgniacanlly laducad by
baaknanl al MMlt
C«nUn«nani nvemMf) bom
an ttta Mda lo atuund oalar
Manbcanlly lailucad by aoil
baaknanl. iltk lo human
haatttand Mia amwonmanl
•ignlcanlly laducad by
ground uniK lacowaty and
baaimanl
Aih ol duacl conlacl wuh
coMammalad tota and dual
•Ignttcandy laducad by
baaananl al *o k> ground MBIM*
•lanbcandy raducad by MMI
baaMMM; ii«k to human
haalliand Mia anwdonmanl
•IgntcanMy laducad by
ground tualar raoMary and
baalmant
ngto
In fk»
-------
C-P05T "-ISTORICAl WO DATA
8 -10"0 RESIDENTIAL WEllS. VOLATILE QftGANIC RESULTS (ppbt
A-PRE
T.,,.. T'."..',3- Dlbromo-
lOC TAP 6A..PlE TOTAl E'hWI. chicuo. Chlo.o. l88chlo.o. chloro. Chloro.
, DATE VOLATILES TCE a...... a...... .Ih.". 81."..". .'h.". m.'''.n. lo.m
... .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. ." .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .............. .. .. .. - - .. .. .. .. .. .. .. ..
~ " A 0'/21114 38 33 3 3
" A 0911 2/14 20 II 2
II A 08/26/14 , 3 2
II A '1114114 t2 12
II A 12/04/14 II 11 '
II A 021221" U .. I
II A 04122/85 10 .
II A. 061241" U II 2
II A. 0'" 2115 4t I' 11 2
II A. '"0411' 31 14 2
II A 01101111 U II 2
11 A. 03110/11 ao II
II A. "10"" 11 11
II A. 01/0511t 11 11
II A. "/0"11 U II
II A. 0"28117 17 n
II A. 04121117 13 13
II A. 02/03/11 ao JO BUOl
11 A 0412"11 14 14 IMJl B
T 01...".
................ .
1,3. d I-
chloro.
.I".n.
Dandl..AIII~
301.06
Pili" 1 01 II
. . .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .
".I"rl.".
chlo.ld.
a-chlo..,'
.thrlvlnyl.
.1"..
0t.I0l
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .... ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
...... .. .. .. .. .. .. .. .. .. .... ...... .. - .... ......... .... .. .... .. .. .. .. .. .. .. .. .
BMOlO
DMOl 0
;.
t2
12
12
12
12
12
12
II
II
12
12
, 11
.. II
II
II
II
II
II
II
II
II
12
12
12
12
12
C
C
C
C
C
C
C
C
C
C
C
C
C
8
B
.
8
8
.
8
8
.
8
8
B
.
OliO""
02122/15
01124/85
01"2115
11104/85
0110811.
OJ/'Oll'
05/0"1t
01128/17
04121/17
, 1102/17
02103111
04121111
01101185
02122/1.
08124/1.
01112/15
11104115
01108/11
OJ/'O/lt
05107/"
II 1121117
08/1 "17
11/02117
02/03111
04121111
o
o
o
o
o
o
o
o
o .
o
o
o
BIoM)l
o
o
1
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
fILlERS RECHARGED - - - -.
fILTERS RECHARGED. - - - -
fillERS RECHARGED - - - . -
PRELIMINARY
DATA'
.. .. .. ... ... .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. ..
011.'
'2186
, 11.,
0t.I0l 0
..... .................----...-..... .....-..-..-..............-........-..........-......
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .... .. .. .. .. .. .. .. ..
OAIE
Dh T A ENTlOED
-
u:~,j, r.EVIEW~.O
-Of, T E
1---' ."-
-------
C - P06T
8 -MID
" - PRE
LOC
.
TAP
&AUPlE
DAlE
TOTAL
VOL "TIL ES
TCE
8......
HISTORICAL WO DATA
RESIDENTIAL WELLS. VOLA fILE ORGANIC RESULTS tppb)
ElIIWI.
.......
T.....
Dllicno.
.......
Chloro-
b......
Tr....I,2-
.Ichloro.
.",.n.
Dlbromo-
chloro-
.....h.n.
Chloro-
lorm
... .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. ",. .. .. .. .. .. .. ... .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. ... .. .. .. .. .. .. .. .... ...... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
12 A 01/21114 8 I
12 " 01101115 1 1
12 A 02122/15 I I
12 A 04/22/15 ° 0
12 A 0"24/15 . .
12 A 0111 2/15 7 ,
12 A 11104/15 . .
12 A 01106/" 4 .
12 A 03110/1' 0 1
12 A 05/01111 2 I
12 A 01105/11 , ,
12 A 11/05/11 0 1
12 A 01128/87 , ,
12 " 01115187 . I
12 " 11102187 4 4
12 " 02/03111 2 2
II " 04/21188 , I
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .... ........... .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
;.
13
11
13
13
13
13
11
11
11
11
13
11
..n
11
11
11
11
11
11
11
13
1:1
13
1:1
11
13
11
11
11
13
13
11
C
C
C
C
C
C
C
C
C
C
C
C
.
.
.
8
.
.
.
8
8
8
8
.
A
A
A
"
A
A
A
A
02/22/15
0112411.
01"2/15
11104/85
01106111
03110/1.
05101111
01128187
04127/87
11102/87
02/04/88
04/21188
02/22/11
01124111
01112/1.
11104115
01106111
03110/11
0510"11
01128/87
1.,27/87
11102/87
02/04/11
04/21 III
01127/84
08/12/14
02/22/15
04122185
01124115
01112/15
11104115
01106111
o
o
°
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
I
o
I
2
o
o
2
o
o
o
o
°
o
o
o
°
o
°
. °
o
o
o
o
o
o
o
°
°
o
o
o
o
o
o
I
2
°
°
2
o
°
PRELIMINARY
DATA
.. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... ... .. .. .. - .. .. .. .. .. ... ... .. .. .. ... ... .. .. .. .. .. .. .. ..
- L. ~~~\£NT~AED -.. - - - .i.J;-\"tL:'"
I.
--
LJ\ i i\ Ht:. \/i:.":';:,j
lJJ\ I E
-_._~
T olu.n.
1,2- d I.
chloro.
.Ih.n.
8endll.AIIIO!>p8'.
301.06
Pili.' 01 II
.. .. .. .. .. .. .. .. .. . .. . "" .. .... .. -.. ...... ...... .. .. .... .. .. .. .. .. .. .. . . - .
U.I""I.n.
chlorld.
2-chloro-
.'hwhln"l-
.,h.,
2
.. .. .. .. .. ..... .. .. . .. .. . .. .. .. .. .. - .. .. .. .. ..... .. .. .. .. .. .. .. .. .. .. .. .. .. .. . - .
BMOl 0 -
fll TERS RECHAI~GED - - . . -
fIlTERS RECHAAGED . . . - -
fIlTERS RECHARGED - - - - -
0111&
12/1&
12111
I 0
DUCt. S
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... ................... - . . .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. - . . .
-------
c 0 POSI
8 -MO
A - Pft(
~ORICAl WQ DA IA
RESIDENTIAL W£lla - VOLAIIlE ORGANIC RESUl1S (pflb»
~
lOC
,
TAP
&lE
PAlE
TOIM.
VOLAIIlU
E'h.'.
8.A.a..
T."a-
. chloro.
.'h.na
1r..a-'.3.
.Ich'or.-
.,h."a
Chloro-
'orm
Plbromoo
chioroo
",.'hana
Chloro-
'a".a..
ICE
8...a..
. ... .. .. .. .. .. .. .. .. .. .. . . .. .. .. .. .. . .. . .. .. .. . . .. .. . . .. - .. .. .. .. .. .. . .. .. .. .. . . . .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. ... .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... ...................... .. - .. .. .. .. . .. ..
13 A 03110/86 0 0
13 A OS/OlllS 0 0
13 A OliOS lIS 0 0
13 A "/O~/" 0 .
13 A 0 1121/87 0 .
13 A 04121187 0 .
13 A "/02187 0 .
13 A 02104/11 BMDL ....
11 A 04/2"" I ....
I.'".n.
. . 2 0 d I.
ehl.ro-
.Ih.na
iMndo. A8'0sp8~
30' .06
"8118 II 01 II
.. . . .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - . .
M.'h,l.n.
chlorld.
2-chl.ro-
....,...In,'-
.'h. r
........ --.......
fillERS R£CHARG£OANO HUAOVEO fOO W.",uW . -. --
fl.lERS R£CltARGEOANOH1.UOVEOfOO WINIEH. - - - 0
fl.lERSRECltAAGEOAHDREUOVEOFORWlNlEH - - ---
..
A
01121114
o
.
................. ..........---......--...-...."""--",,.
38
BMUt:>
. . .. .. .. .. .. . . .. .. . . .. .. .. .. .. .. .. . ... .. . . . . .. .. .. .. .. - . .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. . . .. . .. .. . . . . .. .. .. .. .. .... .. . ... .. .. .. .. .. . .. ... .. .. .. .. .. .. .. .. .... ........ .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
.. . .. . .. . ... .. . . .. . .. . .. ... .. .. .. . ... .. .. . .. ... .. .. .. .. . .. - .. .. .. .. .. - .. ...... .. .. .. .. .. .. .. .. .. .. . . . . . . .. . .. .. . .. . ... .. .. .. ... ... .. . ... ... .. ... ... ... . . . .. .. .. ...o .o...o... . .. .. . .. .. .. .. .. . . - - . ..
.. . .. . . . .. . . . - . .. - - .. .. .. - . ... ...... .. ...... . . .... ... ... ... ... .. ... .. - . . . .
;.
, . C 06124/'. 0 0
II C 0111211. 0 .
U C 04127187 0 0
11 C 0412"" IJMI1 0
, . 8 0612411. 0 0
, . B 01112/11 0 0
11 8 01101111 0 0
11 B 04127181 0 0
U 8 0412 "" IJMI1 IItoIDL
, . A 01121114 3 ,
11 A 08112/14 3 ,
,. A oun/u 0 0
, . A 01124/11 0 0
II A 01112/1. 0 0
, . A 0110 JI.' O. 0
, . A 01lOS/1I 0 0
U A 04127187 0 0
U A 04121111 BMDL IItoIDL .
...'. .. ... ... . .. ... ... . .. ... . .. . ... . . . . . ..o . . . . ... . . ... . - . . ... . .. ..... . . . . . .. ... ... . ... . .. . ... . . ... ... ... . ... ... . . ... ... ... .... ... ... ... .. ... ... .. ... .. .... ... . ... . . . .. . . ... ....................... .. .. .. . . .. .. ... ..
2
2
U A 01121114 0 0
U A 04122111 0 0
U A 011' 211. . 0
U A '"04111 . 0
U A 01101/11 0 0
U A OiIDJlII 0 0
U A "'Oi/ll 0 0
II A 0"21187 0 0
U A 04127181 0 0
II A ",..181 0 0
U A 02103/11 BMDL 0
U A 04/2"11 0 0
... ... ... .. . ... . ... ... . ... ... . . .. .. ... . ... . ... ... .... ... ... .. ... ... ... . ... ... - .. ... . .. ... .. . ... . .. ... ... . ... ... ... .
" A 01121114 0 0
... ... ... ... . ... . ... ... ... ... ... ... ... ... .. . . .. .. . ... .. . ... . .. . . . .. .. .. .. .. . ... . .. . ... ... . . .. . ... . . ..
. - - . - . 0 . . . 0 - 0 - 0IM '''' -A R V' 0 0 - - 0 - 0 0 0 0 0 0 0 0 0 - 0 - . 0 - - - -
.. . . P.R ~~.ATf"'" .. . . . . . . . .. ........... . . . . - - . . ,
CAfE
o~ T A EN1EnEO
.-.------
r.: t\ H:
DATA REV,r-WEO
0"1.
, "I.
, '/17
BMDl 8
.. .. .. .. .. .. .. .. .. . .. - - .. - .. .. ... - .. .. .. . .. .. .. ... ... .. .. .. ... .. ... .. . . .o.o ..
8UOl 0
.. . .. ... . .. . .. .. . . - - - . . .. .. - .. .. .. .. .. .. .. .. ... .. ... .. .. . .. . - - . . .
0U0l 8
.. .. .. - .. .. .. .. .. . - .. .. - - . .. .. - .. ..... .... .. .. .. .. .. .. .. .. .. .. - . .. . . .
-------
~
C - POST
8 ...10
A.PRE
HlSlORICAl WQ DAIA
RESlOENIIAl WEllS. VOlATILE ORGANIC R£SUlIS (ppbt
lOC
.
T.".-
."'0'0-
.I".n.
lAP
SAMPlE
DATE
TOIAl
VOlATILES
EI",I-
8..,...
.. .. .. .. .. .. .. .. '. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. ... .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. e. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
TCE
8..,...
11 A 01/21114 1 0
11 A 04/23/15 0 0
11 A 011l2/1~ 0 0
11 A 1 1I04/1~ 0 0
11 A 01106/16 0 .
11 A 0~/01/" 0 .
11 A Ol/O~/" 0 .
11 A 1110~/I6 0 .
11 A 01/28/17 0 0
11 A 04/27117 0 0
11 A 11/02117 0 0
11 A 02102/88 O . "
18 A 04/11/88 0 .
Chlo,o-
b..,.n.
T'."0-1,2.
.Ielllo,.-
.."...
Olb,omo.
ehlo,o-
m.'hon.
Chlo,o-
10fln
.. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. - .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
18 C 06124115 0 .
11 C 01/12/85 0 0
11 C 11104115 0 0
11 C 0110&/1. 0 0
11 C 03110/" 0 0
11 C 051011" 0 0
11 C 01128/17 0 0
;. 11 C 04/27117 0 0
18 C '"02117 0 0
11 C 02/02/88 0 0
18 C 04/2' 188 0 0
11 8 06124115 , 0
11 8 01'12185 , 0
11 8 '"04185 0 . 0
11 8 01101/" 0 0
11 8 031'0/11 0 0
.... 8 051011" 0 0
11 8 01128/81 0 0
11 . 04121181 2 0 2
11 . 1,/02187 0 0
11 . 02101/88 0 0
11 . 04121188 0 0
11 A 01121184 2 0 2
11 A 04/22115 1 1
11 A 0&124/15 0 0
11 A 01112/85 0 0
11 A 1 1104115 0 0
11 It 0110&/" 0 0
11 A 031'0/" 0 0
11 A 0510111. 0 0
11 A 01105/" , 1
11 A "/0"" 0 0
11 A 0112"17 0 0
11 A 04127117 0 0
11 It '"02117 0 0
11 A 02/02'88 8MDl BMOl
11 A 04/21188 &MOl BMOl
... ... .. .. .. .. .. .. ... .. .. .. .. ... .. .. .. .. .. .. .. .. ... .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. .. ... .. .. ... ... .. .. ... .. ... .. .. .. .. .. .. .. ..
T ol...n.
............... ..
1,2- d I-
chlo,o.
..h.n.
Uandl..Ae,ospaco
3QI.06
Page 10 01 II
. .. . - .. .. .. .. .. - .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. ... .. . - . .
M.'hrl.n.
ehlo,ld.
2-ehlo,0.
.1","ln,l-
.1 h.,
........--. _..-. ......oo-....................................oooo....
FILlERS RECHAHGED - - . - -
FILlERS RECHARGED - - - . -
P A E L 11\111 NAn y
DATA
. -oid t't (J ! iL: HEO-" .. pL",lE- - -
. - - - .. . - - . . . . - . . - . . . . . . . - - . . . . . . . - . . . - . . . . . .
DA1A 1.,1.:\;'IEO
--
DATE
12'16
11181
-------
C - POST
8 -WO
A-~
LOC
.
TAP
SAWPLE
DATE
10TAL
VOLATILES
B......
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. ... ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. ... .. .. .. .. .. .. .... .... .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. ..
lCE
IImoIOAICAl WO DATA
RESIDENTIAL WEllS - VOLATILE ORGANIC RESULTS (ppb»
Elh,,-
.."....
1..,.-
ohlo,o-
..h.".
1,....-1.2-
~Ichlo'o-
.......
T olu.".
1 . 2 - d I-
chlo,o-
.'ha...
Bando..A",o~
301.06
Pag.. 11 01 11
W.lh,18na
chlol.d.
2-chlo.o-
.lh,lvln,l-
.Ih.,
Dlb,omo-
chlo,o-
m.lha".
Chlo.o-
101m
Chlo,o-
"."'8".
.................. . ................ - ........ .. .. .. .. .. .... .. .. .. .. .. .. .. .. . . - .
20 C 11/0.,'S 0 0
20 C 01/06/1i 0 0
20 C 03/10/" 1 0
20 C OS/OU., 0 0 fllflHS nlCItAAGEU 12/86
20 C 01/28181 0 .
20 C 0./21111 0 . fllTEHS HECItAHGED 11181
20 C 02/0411. BWOl . BWOL B
20 C 04/22/11 8W)L . BWOl 8
20 B 11/04185 0 .
20 B 01/06/1i 0 .
20 8 03110111 0 .
20 8 OSlO U" 0 .
20 8 01/28181 0 0
20 8 04121/81 0 .
20 B 02/04111 8IoD. .
20 8 04/22/11 -.mL 0
20 A 011211.. 1 0
20 A 04/22/85 0 0
20 A 01l12/'~ I I
20 A I 1104 III I 1
20 A 01101/" 0 0
;. 20 A 03110/" 0 0
20 A 0~07/" 0 0
20 A 01l~/" 0 0
20 A 1110"11 0 0
20 A 01128/81 0 0
20 A 04121/81 0 0
20 A 02104/11 8IoD.. IM)l
20 A 04122/11 8W)L 8MI)l
ULtOl B
BWOl B
&MOl B
&MOl B
............ ............ ............ .. ... .... -.................... .... .. ....... ...... .......... .... .. ........ .. .. .. .. ...... .... .. ........ .. .. .. .. ...... .. .. .... .. ............ .... ......... --.. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
a
.. .. .. .. .. ... .. .. ... . .. .. .. .. .. .. .. .. - .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .
2
, 21 C 101021" 14 0 .
,. II C 1111"'" 0 0
11 C 12104/14 0 0
II C 02/2211~ 0 0
21 C 0112"'" 0 0
11 C 011121" . ~
21 C 10113/'~ 0 0
21 C 1110411~ 0 0
21 C 01101/" 0 0
21 C 0311011. 0 0
21 C 0~011" 0 0
II C 0' 121117 0 0
21 C 11/0~/17 0 0
II C 02/03111 0 0
11 C ...111111 0 .
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. . .. .. .. ... .. .. .. .. .. .. .. . .. .. .. .. .. . . .. . . . .
fl.1ERS RECHARGED. - - . -
'n.TERS RECHARGED - - - - .
PRELIMII~ARV
. - - . - . . - . . - - D A T.A - . - - - - - . . -, - . -
fIlTERS RECHARGED - - - . -
0"16
12/16
1""
....... ............................. ....................-.....-............................-..-
D;,TA [tJ fEllED
DATE
DATA nlVJ[\'w'ED
VATE
-------
C . P06T
8 -"10
A-PRE
HlSIORICAl WQ DAIA
RESIDENTIAL WEllS. VOlATILE ORGANIC AESUlIS (ppb)
lOC
,
TOIAl
VOlATILES
T."..
0"'0'0-
.111.".
Chloro-
'orm
".".-1.2.
4Ich'oro.
.Ih....
Dltuomo-
chloro-
m.lh....
TAP
5AMPLE
DAlE
Elhyl.
8...a.,,0
Chlo,o-
ta...aono
TCE
80....0
.. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. ... .. .. .. .. .. .. .... ...... .. .. .. .. .. .. .. - .. .. .. .. .. .. - .. ..
T olu.n.
................. .
21 8 10/02/84 0 0
21 8 11114184 0 0
21 B 02/22/.5 0 0
21 B 06/24/.5 0 0
21 B 0"12"5 0 .
21 8 10113/.5 0 .
'21 B 11104/.5 0 .
21 B 01106/.6 0 .
21 8 03/10/" 0 .
21 8 o~o 11.. 0 0
21 8 01/2"11 0 0
21 8 02/03/11 0 0
21 B 11105/11 0 0
21 8 04121/11 0 0
21 A 01121184 II II to 2
21 A 10102114 11 II
21 A 11/14184 0 0
21 A 12/04114 0 0
21 A 02122/.5 " "
21 A 04/22115 0 0
21 A 06124115 1 .
,. 21 A 01112/85 . .
21 A 10113/.5 :I 2
21 A 11104/.5 . .
21 A 01/01/11 2 2
II A ,,/I 0/" 0 0
21 A 0~01l" 0 0
21 A 01105/11 0 . 0
II A 11/01/11 1 .
21 A 01128111 0 0
_ra I A 04127111 2 0 2J
.1 A 11101/11 0 0
II A 02/03/" 5 IItoO. 4
II A 04/21111 I 0 18
.. .. .. .. .. .. .. .. .. .. .. .. ...... .. .. .. .. .. .. .. _. .. .... .. .. .. .. .. .. - .. .. .. .. .. ..- .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. -. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. ... .. .. .... ................ ... .. .. .. .. .. .. .. .. .. .. ..
U A 011211.4 0 0
II A 14122/11 0 0
II A 01112/.1 0 0
II A 11104115 0 0
U A 01101/11 0 0
II A OMtl/1l 0 0
U A 01105/11 0 0
U A 11101111 0 0
II A 01121111 0 0
U A 04/27111 0 0
U A 11/02/11 0 0
U A 02/0)111 2 0
II A 04120/11 0 0
.. .. .. ... ... .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. .. - .. .. .. .. .. ..... .. .. .. .. .. .. .. .. ... .. ..
--
PRELIMINA:11Y
DA-f .1\
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... ... .. .. .. .. .. .. .. .. ..
1.2 - d I-
c:hl..ro-
.Ihan.
Dendi. - AI""!>pac:.
301 _06
P-e8 120118
- .. . . ...... .. - .. .. ...... .. .. .. .. .. .. .. .. .. .. .. .. .. - . . .
".'hr'.n.
chlorld.
2-chloro-
olhyhlnrl,
olhar
... .. .. .. .. .. ... .. .. . .. - .. .. .. .. .. ... -... .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. . .. . . .
8MOl 8
. ... ... ... .. ... .. .. .. ... .. .. .. .. .. .. .. .. .... ........ - .. - .. ..
. -- I'IT'.')' r)
Ui\ ,;\ .:h L 1\..-:
~,-',rE
..------
---
DATA nEVi£WFiJ
OAIL:
I.
- .. . - - - - .. .. - ..... ...... .... .. - .. - .. - .. . .. . . . -
28
-------
C - POST
8 .1110
A-PRE
~TORICAl WO DATA
RESIDENTIAL WEllS - VOlATILE ORGANIC RESULTS (ppbt
o..ndol ""'05'-'-
301.06
P.". 13 01 11
lOC
.
TAP
&A..PlE
DAlE
TOTAl
VOlA TIlU
TCE
8......
E...,I'
8......
T.tr..
...10.0'
.1".".
Chloro.
b.n....
Tr...-I,2.
"'chlo...
.....".
Dlbromo-
chloro-
"'.Ihan.
Chloro-
lorm
101.....
. 1,2 - d I.
chlo.o-
.Ih.n.
".Ihwl.n.
chlorld.
2-chloro-
.'''Whln,l-
.'''.r
.. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .... .................. - .. .. .. .. .. .. .. .. .. ..
.... -.... --.....
. . . .. .. .. .. .. - .. .. .... ...... .. .. .. .. .. .. .. .. .. .. .. .. .
n C 1211 0/.5 0 0
n C 01106/86 0 0
U C 03110/86 0 0
U C 01128/81 0 . f IllUiS HlCIt"UGlO - - - .. 12/.116
U C 04/27181 0 .
n C 11105/81 0 .
n C 02103/88 0 . fllTlHS H£CItAHGEO - . - - - 12/81
U C 04/20/88 BtooQ. . BUOl 8
U 8 1211 0185 0 .
U B 01106/1. 0 .
U B 0311011. 0 .
U 8 01121111 0 .
U B 04121181 0 .
U B IllUlll 0 .
U B 02103188 0 0
U B 04/20/88 0 0
U A 01121114 0 0
U A 04122/15 0 0
U A 01112115 0 0
U A 11104/15 1 1
U A 12110/85 0 0
;. U A 01101111 3 1 2
U A 03110/11 0 0
U A 05/01/11 0 0
U A 01105111 0 0
U A 11 lUlU 0 0
U A 01/21/11 0 0
.
U A 04121111 0 0
U A 11/05/11 0 0
U A 02103/11 BtooQ. IU)L
-.h A 04/20/11 8MDl IIMDl
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. ..... ............ .. .. .. .. .. .. .. .. .. .. .. .. .. :
.... .... .. .... .. .. . .. .. .. .. .. .. .. .. - .. ........ .... .. .. .. .... .. .. .. .. .. .. .. - - .. .. .
14
A
01121114
o
o
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. . . . . . .. . . . . .. . .. .. . .. .. .. . .. .. .. - .... .. . .. .. .. .. . .. .. .. .. .. .. . .. . .. .. .. ... ...... .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. ..
.. .. . "Oo .. . OoOo . .. .. .. .. .. - - .. - . . . .. .. .. .... .. "Oo .. .. .. .. .. . - - - . .
II
A
01121114
o
o
. . .. . .. .. . . . .. .. . .. .. .. .. . .. .. . .. . .. .. . .. .. .. . . . .. - . . .. .. . Oo. .. .. .. . . . . . . . .. . .. .. .. . .. .. .. . . . .. .. .. .. .. .... .. .. .. .. . .. .. . .. ... .. .. . .. .. .. .. .. . .... ........ .. . .. .. .. .. . .. .. .. .. .. .. .. .. ..
.. - .. .. .. . . .. .. . . - . - . .. . . - .. . . .. .. .. .. . .. . .. - . . .. . .. .. - . ..
U A 01121114 0 0
. . .. . .. . . . . .. . .. .. . . . . .. .. .. .. .. ... .. .. . . .. .. .. .. . - .. .. .. ... .. Oo. .. .. .. .. .. .. . ... .. .. ... .. .. .. . . .. .. .. . .. .. ... .. . .. .. Oo" .. .. .. .. .. . .. .. .. ..- . .. .. .. .. .. .. .. .. .... ...........Oo"OoOo . .. .. .. .. . .. .. .. .. ..
OoOo Oo" . "Oo . . . . . - .. . . .. .. - . .. . . .. .. .. . . "Oo .. .. . - .. .. . . - .
21 A 01/21114 0 0
11 A 01/05/11 0 0
.. .. .. .. .. . .. . .. . . .. . . .. ... .. .. .. .. .. .. .. . .. . . .. .. . .. .. - . .. .. ... .. ... . .. .. .. ... .. . .. . .. . .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. Oo" .. .. . . .. .. .. .. .. ... ... .. .. .. .. .. .. .. .. .... Oo..""""Oo .. .. .. . . . .. . .. . . . .
.... .. . . . . ..... .. .. . . . .. . . - . .. . . . . .. . .. "Oo .. . - .. - . .. .. .. .
21 A 01121114 1 0
U A 04122111 0 0
21 A 01112/15 0 0
U A 11104115 0 0 PRELIMINARY
21 A 01101111 0 0
21 A 05101/11 0 0
21 A 01/05/11 0 0 DATA
21 A 11/05/11 0 0
21 A 01/28/11 0 0
21 A 04/21111 0 0
21 A 1110!l/l1 0 0
21 A 02/03/88 2 0 DATA UHEI1EO (;:\ fE UMUlB 20
21 A 04/21188 0 0
. .. .. .. .. .. .. .. . .. .Oo .. . - .. .. . . . . .. .. . .. .. .. .. .. .. .. .... ..Oo".
-"Oo""OoOo".... -Oo. -.. ...Oo'''''''''.'
.. . . .. . .. . .. - . . .. . .. .. .. .. .. . .. .. . .. .. .. .
.. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. . .. .. - .. . .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
I.
DATA nLVIEWED
DAlE
-------
C-P06'
8 -WID
A-PRE
lOC
.
TAP
SAWPlE
DAlE
TOTAl
VOlATILES
8.....-
(I"yl-
B.n..".
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. e. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ...
..................... .......................................
TCE
2tI C 02/22/U 0 . °
2tI C 0412!HIS ° °
2tI C 06/24/15 ° 0
U C 01/12115 I 0
U C 11104,U 0 .
28 C 01106'" 0 .
U C 03110'" 0 .
U C 05106'" 0 .
U C 01128/" 0 .
U C 04121181 0 .
It C '1/OS/" 0 .
U C 02/03/11 0 .
28 C 04120/11 BMDl .
U 8 02/22/11 J .
-u 8 04/25/11 0 .
U 8 06124/.5 , 0
U 8 01/12115 2 .
U 8 '"04/15 0 0
U 8 0110111. I 0
U 8 03/10/11 0 0
U 8 OSlOa/Ii 0 0
;. U 8 01121181 0 0
U 8 04121181 0 0
U 8 'IIOS/81 0 0
U B 02103/11 4 0
U B 0412011. 0 0
U A 01/211'4 0 0
A 01112/.4 , e 0
U
U A 02122115 0 0
U A 04l2i111 0 0
..'2. A 01124/1$ J 0
It A 01/12/15 0 0
U A "104/1$ 0 0
U A 01101/11 0 0
U A 03110/11 0 0
U A 0lIOII.. 0 0
U A 08/05/11 .0 0
U A , "01111 0 0
U A 01128/81 0 0
U A 04121181 0 0
U A 11105111 0 0
U A 01/03/11 0 0
U A 04'20'11 0 0
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. - .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
HISTORICAL WO DATA
RESiDENTIAL WElL. . VOlA'IlE OROANIC RESULTS (ppbt
T..,.-
.chlo,.-
.1".".
T..n.-1.a-
cUchlo..-
..hen.
Dlb.omo-
chlo.o-
"'.Ih.ne
Chlo..-
ben..n.
Chlo.o-
lo,m
T olu.n.
.............. .
F Il nHS HI:.CHAHGlO . - . . .
FllllRS HECttAHGlO. . . . .
FIl 'ERS RECHAHGEO . . - - -
PRE L 11\11' 1'1 AnY
- - - - - - - - .- - . 0 A 1 A- . - . - - -. - - - - - - . - - - . . . . . . . - . .
O:.T AU 11 Eni:D
DATE
OAT A RE VIEWED
DAlE
---
45
1.2 - d I-
chlo.o-
.Ih.n.
Bcondl..A810I>pac.
301.06
PilQ8 140118
- . . .. . .. .. .. _.. ...... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - . .
W.lhyl.n.
chlo.ld.
2-chlo.o-
.lhy"'lnyl-
.Ih..
01/86
12116
I 1181
BWOl B
2
1
2
3
.. .. .. .. .. .. .. .. - . .. - .. .. .. .. .. .. ... .. ... ... .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. . -
-------
C - POST
8 .WID
A-PRE
LOC
,
lAP
SAWPlE
DAlE
TOTAl
VOLATILES
.. .. .. .. .. .. .. .. .. .. .. .. .. ~ .. .. .. .. - .. .. .. .. .. .. .. .. .. .. ... ... .. - .. .. .. .. .. ... .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ..
.................... ..
30 A 01111114 0 0
30 A 08" 2184 0 0
30 A 03113/1S 0 0
30 A 04/221IS 0 0
30 A 06124/1S 1 .
30 A 01/12/1S 0 .
30 A 1 "04/IS 0 .
30 A 0 "06/86 0 .
30 A 03110/1' 0 .
30 A 05/06/1' 0 .
30 A OI/H/" 0 .
30 A 1 1106/11 0 .
3D A 01/21/11 0 .
3D A 04/21/81 0 .
30 A 1II0SIIl 0 .
30 A 02103/11 BtooD. 0
3D A 04120111 0 .
TCE
8a.,a..
E thWl,
8anlana
'''III.!U ORICAl WQ DA' A
RESIDENTIAL WELLS. VOLAIILE ORGANIC RESULTS (ppb)
Ta...,
chIaro'
atha..a
Chloro'
lIanla..a
Tra.a-I,2-
~Ichloro'
alhan.
Dlbromo'
chloro-
mathana
Chloro-
'orm
...................................... ..
.. .. .. .. .. .. .. .. .. .. ... ... .. .. .. .. .. .. .. .. .. .. ... .. .. ... .. .. .. .. .. .. - .. ... ... ... .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. ... .. .. .. .. ... .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..... ............... .. .. .. .. .. .. .. .. .. .. .. .. ..
'I C 02/22/1S 2 0
31 C Oll24/1S 0 0
31 C 01/06/86 .. 0
r 31 C 05101/1. 0 0
31 C 01121181 0 0
31 C 04121/81 0 0
'I C 11/02/81 0 0
31 C 02/03/11 1 0
31 C 04/211" BtooD. 0
31 8 02/22/1S 2 . 0
31 8 01124 lIS 0 0
31 8 0110&/1. 0 0
,. .., 1 8 05101/11 0 0
31 8 01121111 3 0
31 8 04/21/11 0 0
3' 8 11102/11 0 0
31 . 02/03/11 3 0
3' . 04/21111 BtooD. 0
31 A 01112/.4 3 I
31 A 02/22/15 4 2
31 A 04/22116 3 3
31 A 0II24/1S 0 0
31 A . "04/U . .
31 A 01106111 0 0
31 A OS/011" 0 0
31 A 01105/" 2 2
31 A . ./051" 3 3
31 A 01121181 2 2
31 A 04121/81 . . 8
31 A . 112/11 . .
31 A 213/" 1 .
31 A 4/21111 2 2
... .. ... .. .. .. .. .. ... ... .. ... ... .. .. ... .. .. .. .. ... .. .... .. .. ... .. ... ... .. .. .. - .. .. .. ... ... .... .. .. .. .. ... .. .. .. .. .. .. .. ... .. ..
I,
IIWI1 a
. a
r
PAELI~J'INAnv
[) AT l\
.. .. ... .. ... .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. ... .. ... .. .. .. .. .... ... ..
--~- ---.- .-..---
---
~;,~.: /". t.f.:! i.~~.;i.~_)
\ ~;;, ,.-~I- ~J-,. r.~!)
L,',TE
..-- ---
l" . -, r:
~I\ I L:
, ol...n.
... -.... _.
.... -....-
5
flL IERS H£CUAHGED . - - - -
flLUHS H£CUAHGlD - - - --
fl.1ERS RECHARGED - - - - -
I.:Z. d I.
chloro-
athana
8endo.-A",o~
301 06
P~..I!lolll
. . - - . - . . - . . .. . . .. . .. . . . . . . . . .. .. . . . .
W.,h,,18na
chlorlda
2-chI0. 0-
.thwhln"I'
.th.r
2
. . . .. - - . .. .. . .. .. .. . . . - . . .. . . . . .. - . . .. . .. . . .
BWDL 8
° III'
11186
111.1
2
3
2
.. - . . .. .. . .. . .. .. .. . . .. - - . . - . .. - . .
t 5
BMOl 8
25
BMOl 8
. -... - -""."Oo......... -........ -..
BWDL 8
-------
C - POST
8 -"0
A - PRE
LOC
,
HiSTORICAL WO DATA
RESIDENTIAL WELLS. VOLATILE ORGANIC RESULTS (ppbJ
TAP
&A..PlE
DAlE
TOTAl
VOLATILES
E18IWI-
a."....
T.....
."10'0-
.1"...
Chloro.
~....".
T,....-1.2.
.le"lo..-
.1"...
TCE
8......
... ... .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. ..- ... .. .. .. .. .. .. ... .. - .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ..
Dlbromo-
chlo,o-
...Iha...
Chloro-
lo,m
.. .. .. .. .. .. .. .. .. .... .... .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. ..
32 C O!l/I6/85 32 28
32 C 06/24/15 14 12
32 C 07/'''15 0 0
32 C 0118 2/15 0 0
32 C 06/15/81 0 .
32 B O!ll16/U 0 .
32 B 06124/15 0 .
32 B 0118 7/15 0 .
32 B 0118 2/85 1 0
U B 01/15181 0 0
U A 08112/84 II II
u A 08/21/14 140 137
U A 04122/1S 131 130
U A 0511"85 40 40
U A 01124/85 II 14
U A 0118 1115 21 21
U A 01/12/15 122 120
U A 01105/1. 101 100
U A 01116/" 64 0 64
3
2
Toll.....
1.2 - d I-
chloro-
.Iha...
8610111. . A... oSpil'.
301.06
PIIIgIt 16 01 II
- .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. - .. .. .... .. .. .. .. .. - .. .. ... .. .. .. .. .. . .. . -
".Ihrl.n.
ohlorld.
2-chloro'
.'hrhlnrl'
.'h..
ft nRS HI CIIAIIGI U ANO HI May! 0 f OIl WIN II II . . . . .
fLIERS H1CltAHGlD ANOHl..aYLOIOH WINIUI. . . . .
4
2
2
2
1
;.
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. -- .. .. .. .. .. .. .. .. .. ..
Bt.8Ol B
.. .. .. ... .. .. ... .. .. .... ...................... .. .. .. .. .. .. .. .. ..
u
u
A
A
12/04/14
01110/81
1
11
1
11
...."................... .......... .... ................. .......... -.. .... ............... ........ .... .......... .... ......... ..OoOo - . . . .. .. .. OoOoOo' OoOo .. ............ "Oo ..""OoOoOo"OoOo"" . .. . . .. .. .. . .
u
u
u
u
u
u
U
k,S4
14
U
U
U
14
14
U
14
14
U
14
U
U
U
U
U
U
U
U
U
U
34
. ... . . . .. .. . ... ..
c
C
C
C
C
C
C
C
C
8
B
B
B
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
A
A
12110115 0 0
01101/11 1 0
03110/11 0 0
05107111 0 0
01121111 o. 0
04/21111 0 0
11105/11 0 0
02103111 8100. 0
04/20/81 0 0
121'0115 0 0
01101111 0 0
03110/11 0 0
05107111 0 0
01121/11 0 0
04/21111 0 0
11101111 0 0
02/03/81 8100. 0
04/20/11 0 0
11104/15 4 4
12110/15 4 4
0'101/11 0 0
03110/1. 1 1
05107111 2 2
O"O~/I' 3 3
, "01111 2 2
0"28'11 2 2
04/27/11 2 2
'1/0~/11 3 3
02/03/11 3 3
04/20/11 2 2 --.. -- -.-
-...... ..... - - - -.. - - - - -.. -- - -.. - -.. -.. - - - 'D"'\' f i\ ri~ jt-(;~ ~)I"~-. .. DA";Z-
PAELlr,,1JNAAV
D Ii - '. i\
/.\ J l\
""'" ~ ~" Il'n-1 ",-, .. --= -
~---
01116
1 II' 7
....Oo.............. -"...Oo""" ......... ............................. -..
8WUl B
...... OoOoOo""".""""" ......... """""""""Oo""""".."'...
FILTERS RECHARGED. - - - -
F.IL lEftS REC~GEO - - - . -
.. . .. .. .. . .. .. .. .. .. .. .. .. . .. .. . .
12/16
12117
BWOl B
BWOl B
BUOLB
...... -. - - -. -. -... -....... _.....-. - -... -...
-------
C - POST
8,"0
A ' PRE
""III!rloAICAl WQ DAJA
RESIDENIlAl WEllS. VOLAIIlE. ORGANIC RESUll5 (ppb)
lOC
.
&AYPLE
OAf(
TOIAl
VOlATILES
To".-
o"loro-
01"0..
Chloro-
'orm
1r....-1.2-
.Uc"lor..
01".".
Dlb.omo-
c"loro-
111.1"....
fl"y'-
B........
TAP
C"lor.-
..........
TCE
B......
.. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. e. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. - .. .. .. .. - - .. .. . .. .. .. .. .. .. - .. ..
:as c 03110116 0 0
:IS C 0!)101116 0 0
311 C 01128/81 0 0
U C 04/21181 0 .
U C 02/03/11 BMDL .
:IS C 04120111 0 .
U B 031'0/16 0 .
U 8 05/01116 0 .
311 8 01128/81 0 .
:IS 8 01128181 0 .
U 8 04127181 0 .
U 8 02/03/11 1 .
U 8 04/20/11 0 .
U A 01101/11 2 .
U A 03110111 0 .
U A 05/01116 0 0
U A 01/011/16 2 2
U A 111011/11 0 0
:u A 01121/81 2 2
U A 04127181 0 0
:as A 02/03/11 3 2
U A 04/20/11 1 1
loluono
.. -............ ...
filII US IUCtlAIlGi 0 - - - - -
fll1l11S HlCttAHGlO - - - - -
8MOl
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .... .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. -
U A 03110116 0 0
U A 011101111 0 0
U A 081011/11 0 0
U A 11/011/11 0 0
31 A 01128181 0 0 0
31 A 04127/81 0 0
31 A 111011/11 0 0
. ..11 A 02/03111 8MDl BMDt.
'-II A 14/20/11 IIUDl IMDl
.. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .... .. .. .. .. ." .. .. .. .. .. .. .. .. .. .... ............ .. .. .. .. .. .. .. .. .. .. .. .. .. ..
u
A
01lOS/1I
o
o
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - . . . . . -. . . . . . . . .. .. . . .. . . . . . . . . . . . . . . . ... . . .. .. .. .. .. .. . .. .. . . .. . . . ... . . .. -. . . . .. .. . . . . ... . .. . ... - ... .. - -
U
II
II
A
A
A
o
o
o
o
o
o
01101,.
04127/11
04120/11
--'
- - - - PRE LI [\:1 t vI A R Y- - - - -
IJ AI i\
1.2. dl-
chlo.o-
olhon.
o..na.. - A...o",paZl'
301.06
PMg" 11 01 II
. -..................................... -.
Yolh,lono
chlorld.
2-chlo,o-
.'h,hln,l-
.Ihu
111B6
11/B 1
&tOlD
8MDL B
BMDl 8
................ -.... .-..-......... -....... -...
BMOl 8
DMOl B
. . . . .. . .. - . . . . . . . .. . . . . - . ... .. . . .. .. - . . .. . . .. . .. . . . . .
8UOl S
.......... ......... .................................. -...
........... -...... ................ -....... ............ ........... -... - -..
. . . - . . . . . .. . . . . . . . . .. . . - .. . .. . .. . . . . .. - . .. .. - . .- .. .. - - - .. . .. .. .. .. - . - .. - .
u
u
u
A
A
A
01101111
04127111
04120/88
o
o
8MDl
o
o
8MDl
. . . . . . .. . . .. . .. . . . .. .. .. . .. . .. .. .. .. . . . . .. .. .. - . . . .. .. .. .. . . . .. .. . . .. . .. . .. .. .. . . ..
. .. . ... . .. .. .. .. . . .. .. . .. . .. . .. . .. .. . .. . .. .. .. .... ....... ..
....... -..........
40
A
01128181
o
--.----
o
------
-D./\-i:X-[;~ itJ~:~)""'" -L-;\'j'c'"
.. . . . .. . .. .. .. ... .. . .
. .. . . . . . .. .. . . . . . .. .. .. ... ... . .. ... .. .. .. .. . .. . . .. . .. . .. . .. . .. .. . . . . . . . . . . . . .. . . . ..
4 1 A 08/05/11 0 0
41 A 01128181 0 0
41 A 111011181 0 0
41 A 04121181 0 0
4' A 11105181 0 0
41 A 02/03/11 0 0
- - ~_1- - - - - ~- - ,,~~/_2,1_'_1_1- ,- .., ~, - - - -, ~ - , ., , , , , - , - , , , , , , - , , , , , - , - - , , - - ,. , , , , - - , , - _. - - . , - - - - - - - ., - - - , , , - , - , , . , - - - , -
--
--
OAlE
OAT A REVieWED
.. . . . .. . . . . . . . .. .. . . . .. - - ... ... ... .. . . . . .. . .. .. . . .. .. . . . . .
BMOl B
. . . . . . - - . . - - . .. . . . .. - .. .. . ... ... . . .. ... .. .. . . . . .. - . . . . .
- - -' -. - -.
..... - -................ -..
8MOl 8
-------
C . P06J
8 .80110
A . PRE
LOC
.
TAft
SAMPlE
DAlE
TOTAL
VOLATILES
TCE
EIII'VI-
8....".
HIS IOAICAl WO DA I A
RESIDENTIAL WELLS - VOLATILE ORGANIC RESULTS tppb)
T.lr.-
cM.r.-
.Ih.".
Ir...-1.3'
"chlo..-
.Ih.".
Dlb.omo-
chlo.o.
rn.lh.n.
TOlu.n.
'.:1. d I-
chlo.o-
.Ih.n.
8.......
Chloro-
It."..".
Chlo.o-
'.,m
42
42
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .... ........ .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
.................. .
A
A
Ol/O!!/Ii
, IIO!!/81
o
o
o
o
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .. ..
4~
A
Ol/O!!/II
o
.
Bendl..AoIO&pac:O
30'-06
Pauo II 01 18
M.lhWI.n.
ch'o.ld.
a.chlo,u-
81"v..,I".I.
.Ih..
. .. .. . .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .
.................. .
.. .. - . .. .. .. .. - .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. ... .. .. .. . . .
...................................... ..
.................. .
.. ....--------..............-.-......- -.
44
.. .. .. ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... .. .. .. ... .. .. .. .. .. - . . . .. ., . . . .. .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .. ... .. .. .. .. .. .. .. .. .. .... .. - - . - - . . - . - - . . - - - - - -
.... - -. - - - - - - - - -"'OoOo-
A
01/2U/81
o
.
. . . .. . ... .. .. . . . .. .. .. . . .. . .. .. ... ... . .. . . . . ........ -....,.. . . .. . .. .. . .. . . . . . . . . . . .. - . - - - . - - .. - - - . Oo. - .. .. . - .. .. .. .. .. ..
,
------. -..-. --.-.--.o..'OO..'OO..'OO.........--.. _.
HOTE: ....... - dII8d8d.
uw.OCIIES :
J . T" ... IhouId ... C11118id818d 8 ..8..'" ........
8. ,...... "'..-........... 81&4 'A n..." co.pound... MIKI8d in tIIaIU 81 -... Q)ftC8II8.DOna.
8 . EAM CIIIrI8idw8 fill ..... 8I8fI8CI - ... ... ENI ~ A81u18M8 R8wiow.
IIMDl - ,.. v-,.... ... -...aM .. 8 ..... ..... .... ... ..... ..ion .....
. - . -.......,
. PRELlr~.11f\'AIlV
IJ j~-rI\
--.---- -- -.----- -
Q,"\ 1/. EH III t:D
~/.I[
-------
--
0.\1.\ f\[\,'IEW[O
DAlE
-------
"'....
.-.- Wu.u - _AC' W.... ........
'.'.'- 1.....1.1..
.... -. .- ".r" ....,.... w.... -... I.I-DI..'.'.. 1.1-.'..'..... .......... 8'e..I....
_..M. 8-.-""""" . .....18. ......- ....... M...8- caaa..... c ....... '.'.8.a'M'H ...... 84"'" M-- ..IMM CR'.'.'.'.
e.. .,.,.. .... 11M . 10" u.
.,.... .... ... "" U.
'11"'" n.. II.' ...
....,.. .u II . ... ..
"..,.. .... ... ... .'1'
..",.. .... ....
...,.. .... ....
.,.,.. .... ... ,...
.,.,.. .... ... .11.
.11.." .... ... ..,.
0 ...., .... ... ... .. III ... ....
0 .,.- ra" .. .- ... "" II .... II
......... .... ... . . ... . . . - . . . . . . ............................... ........... ............... ..... .... ......... .. ... .. . . .. .... . .. .. . . . .. .........-.-..... ........... ..-."..........,
e.. .,.... ...... .... .... .u..
II ..,.. ...... .... 11M ... .... ... ... II'.. I"" ....
.11..." ...... .... If. .... .. ... ,." ..,.. II'.
.,..,.. .U... .... ..... .... ....
"..,.. ...... .... .... .... ... ..... ..... ....
III"" ...... .... .... ..... ....
.,.... ...... .... .... ..... ....
.,.,.. ..... .... ,... .....
.,.,.. ...... .... .... ..... ....
,".." ..... .... u.. ..... ...
0 III"" .".. ... ... II" .....
0 -, ..... .... ... ... ... .... ..... ....
0 -, ..... .... .. .... II.. .....
. .-, ...... ,... I'" - .. .... ..... ..... ....
[[["......'''....'.....''.-.'''''''''''''.''''...'-.''..........'.".'-.""'" """"""""'- -..........
..
D.&".....
......
...Mllle
..
e.,
e...
I"'"''
...
.........",.."",.,.......,.,.............."...."......"".."....""""...."......'.".."-""'."'.'.-"."""""""".'.""""
....................
...... .... ..
""''' ''11 II .
III"'" Mil . .
....... ...
J,..,.. ....
III'''' au.
...,.. ....
".... ....
.,.,.. ....
""'" M"
0 -, .11. .
. - u..
. ......, ....
.- .11.
..
... ..
.. ,
.. It
II ,
..
II.
.. It
.. -..,
;.
,
- e...
[[[-...._--'."'."...'"
.........................
...... .... II'
"II'" .... "'
"""" II'
...".. M'"
"..... H"
III"" .ral II . .
...,.. Mar . II "
.,.... "" ..
I"'''' UJt U It , I
. - .... .. , . .
. -, .... ..
. .-.. .... II
.- .... JI
...
...
...
....
u..
....
....
....
....
....
....
....
u..
[[[-.."..".'."'-"""'.."""
...-..""
...............
.w..
"","
.,,,..
.......
II"'"
"''''
.,....
,..,..
'"""
o 118M'
o -..
. -,
0'_"
o ......
. .......
.
..
a
.
.
.
.
.
I
.
.
.
.
.
...-.......................
......-.-.................,..............................-........
.............................."............
....
.,.....
.IIU'"
.,U,..
II
U
II
II
.
.
.
.
,,"""'.""
.........-.......
""""".",.,.",,"""'."-
.............
QU.8t.NIt'l"WW8 0 - ........................... -''''0...-.''''''''.''''
. . ... ..... II .. .......... ......... ..,....... ... -..,.. A
8M ............. . ..... C8M_""
, hII8........... .. ~ . ........ ......
...a.-_-_-
....
I.
1.1&.......
.'M.
u
...
..
u
.,
"000.
......
IU."
.....
,.....
......
.....
.....
,....
.....
.....
.....
,....
. .....
...
u..
....
....
...
....
....
....
....
....
....
....
u..
....
....
...
u.
...
....
U.'
....
....
....
U..
...
....
u.
....
"""-""',.".-
.......... ""...".
-------
....
.......
....
...a
...,
....
...,
;.
....
....
..'
-
......
...,..
"..,..
. "..,..
""'11
o .....
....1 . ICOII'--'
,-
v....n..
"",.-
.......
....,,18"
e......-
',','-
,.I..t.....
........
WI.,.
Cat..'-
C..,..
I.............
1.1"0".'8'..
.........
1.1-8..111'.'..
.. ...-.
........
, ......
.
.
IJ
.
..
.,.,..
.".. ..
. "..,..
.. .. .. .... .. .. .. .. - .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ....... ........... .. .......... .......... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .
.
.
.
....-.-0..
.............
"."..1.1.
81.......
........
I
........."'"
,..........
.................
DI.8II'8..'"
.......
.......
-0.......-.
I
I
................ ......-
I
I
II
.
-
I
..................
18.
..
[[[
u..
....
....
I"
-0..-0....
.. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .. ~ . . . . . . . . . . . . . . . . . . . . . . . . ~ . . . . . . . . . ~ . . ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
....... ........ ...... ................................................ ... .....................
..................................
.
.
.
[[[
"....
.".,..
. ".....
.......... ..... ..................... ........ ............. ............. . .
.
.
.
."".
"..,..
. ".....
........ .. . . . . . .. .................................. ..... ............... .. ............... .. . .. . . . . . . . . .. .. . .. . .. .. . . . ... . . ... .. . . . . . . .
.",.. ... a
"..,.. ... .
. "..... ...
....'II .11
"U,II ...
,""11 ,.
.,.... .11
.,.". ...
. ".... II
0 ..."" II
0 ...., . .
o ..-, .. .
o -- II .... III ,
...............
................
[[[
"..".
"..,..
....,..
.11.....
................
.",..
.".,..
.11.....
""'11
"U'II
.",,,.
""11
.",..
.It".
.".".
o .......
o ....
O.~
.
,
.
. . ,~. . ,............. t. .. .. ..... .......... . -... ............. ..,. .. . , .... .... . .... . . . . ., ... .. .. - , . . ., -" -" . . . . . . . . . . . , . . . . . , , . , . , . , . . . . , , . . .
. nu.. ......... ..... ....
"....,.. .,...
...... ..-
....-
.......
.......
....-
.......
..-.
......
......
..-
r-
....
,..
""
.....
.....
.....
...
....
...
.....
"'
.....
.....
.....
......
.-
..
.....
....
...11 . "'"'' ..... U..
....'II ..... III
""," a.... ... ...
. "".. a.... ... u. ...
."'.. .U.. I..
""11 a.... ... ... ...
""11 II'" U.
. ".... ..... ...
o III"" ..... .... ... .. " ".
o -, U... . ... II .. U.
o -.. ..... - I8t
0 .-.. ..... ... II II ....
0"- .... ....
CUll..NArlft88 o. ..... ........................... c:a..., -....- .....
8'--."'-"-""---- -
--..-.---.
J ...--...-..--
-.._---
...
...
...
II
"'
...
..'.......
".Cl&.....
.........
uo....
..,...
......
.......
u.....
.......
un...
. ......
.......
......
......
.......
,.....
.....
.....
.....
lUll
.....
118..
"...
.....
.....
.....
'18..
.....
a.. J
"1118. ",-,,,...-.
)", u.
r~' ...
...-
,....CIt...... 8'."'.'."
81M... .......
0'8'.--.
........
......,.. ,.--
Ie
.
..
-------
I.." . IC_.--'
'.'." ...... ...~ 01.111'.'."
.... - 1- ''",.- -,.... ..." c.a- t.I.0""'8,.. 1.1.8'."'.'.. "".1.'.. 01..'.'.. ......
....... ----.. ,........ ....- ,~,-- ........-.- CaMll. elM..... '8.r8."'''''' ...... ..---- ..MIla ....... Cln.....,. -.,.....
...11 ..".. .11" au. ... ... ...a .... ...
.,..,.. ..... .... .... ..0.' ....
II' ..... ...., .... .... u. ... II" 010" ,...
.,,.,.. ..... 1M ... JI H' .11.. '11'
"..,.. .u.. ... ... ..... ....
'" ".. ..... NIl .... .... ..... ....
...,.. ..... .... ... .... .18.. ....
.,.,.. II... - ... ..... '11'
...,.. ..... 1M ... ... ..... ....
.11.... ..... .... UM ,.. ".. ..... ....
[[[ .... ...... ..... ....... ................................................ ..... ......... . . ..... .. . ..... .......... .
"""""""""'."
..-,
"....
'11'"''
.
..
.
.............. ....... .......................... ..... ........... ... ..... ............................... ....... ..... .. .... .... ... . . . . ... ... ......... .. . . . .
. ............
11-'
"..... II , ,
II""" .n
.,..,.. ""
,'..,.. ....
'""" ....
.,,,.. ....
.,.... ....
."... ....
. II.,.. ""
0 ....... at"
0 ......, ....
0 "..., II..
0 "III" ..... -...
0...... .....
II
.
. . ,
II II ..
II ..
II '1. II'
U ... ...
... ,..
II. ... ....
II ". ...
.. .U '11
.. ... ....
II. "' .".
... II" ....
,.. .... ....
... .... ....
.
II
;.
.........................................'...'.......'.""[[[
..........
11-'
"..... II. .. .. a
.." ".. II .
....... ... .. .. . .
"..,.. II' .. " ,
'""" .. .. I
".,.. .. .
.,,,.. tI. at II
.,.,.. .. . .
0 -, ... .. at . .
o - ..
0 ......, ..
. ..... .. " ....
0 ..... .. .... . .... I
II
II
I"
..
II
II
..
II
.n
"
.,
It
JI
II
I
- '
[[[
.....-.......
........-....-
II.'
"'"'' "' II .' ..
1111.... ,.. . . .
....,.. ".. ... ...
.,..,.. ".. ,.. ...
.11"" .... .. ,.
"".. ar.. , II . II
...... .... ...
.",.. .... JI
....,.. .... II
0 III'" ",. "'" ..
o -, .... .. . ... . . 8J
o -, .... ..... ..
. ......, .... ..... II
0..... .... . .... - II
II
,
.
[[[
...............
11-' "..... .
.....,.. .
....... ..
"..,.. ..
.11"" ..
".,.. ..
.,.... ..
.,.... IJ
....,.. II
0 W..., ..
0 ....... 8J
0 ...... II . "'
o 111)1" ..
0 ".... ..
.
.
.
.
.
.
.
. . . . . . . . - . . . -
...-...............
G.M. WtIItc.OOBo Q n-............. ..... ~ 8ft .... aa.., ....... .......
. ............. .......... ....,.. ...... .... - ..... ...-c.....
... -.-....... ........ c..-.:.......
1""--"-"''--'
....... ---_.
"........
......
u.
II'.
... .
...
,...
...
....
II
...
.u.
....
....
....
....
IU.
IU.
....
IJI.
....
....
....
................
.
-
".
...
....
u..
....
....
....
....
-------
'_1' ac-.--.
.... - .-
.~. 8.....--- W........ ....... ,.......
.... ....,.. .. I
.... .,.. ...
""'11 .n
"U'II ...
'''''11 .n
.,.,.. .
""11 ....
al.," ...
'''''11 .n
0 ......, .n
0 - ...
0 .....11 ..
I...,..
......-
....,..-
c.......
..."
'III.,'M
','.1.
"1......-
....-.-
"..... t.'- Oil.'.'..
8'..'.'.. a.....
..M" ,.....,... .........
.
..
II .,
II
II .
.. I"
II "
If .
II "
II .
.. .
...
... II
.11
a.. "
...
c.....
18".'''''''..
I.' ...1.......
......
8.1..01..,.....
.......
.
.. ........ .... .... .. .......... .... . . . .... ...... .. .. .. .. .. .... ... ........... ..... ..."""""" .. .. ........ .. .. .... .. ........ .. . .
......,...................
. .. . .. . . .. . .. . . .. -
.... ....,.. .... ...
. "",.. ..,..
....... ....
"U... .....
'''''11 .....
.,.,.. n..
...,.. .....
...,.. . ....
..,.,.. .....
0 -' ..,..
0 -, .....
0 .-., .....
II
..
II
..
II
...
II
..
...
...
...
...
,..
...
...
...
...
...
...
N' ~
..
....-......,..-
[[[ ..... ...o...... ........ [[[ ................ .......... ........ ............ .......... ....... - . .
-."""""""'"
....
.....,.. II
. "..... II
....,.. ...
""'II ..
"",.. ..
"".. II
.,.,.. ..
...,.. ...
"'''II a.
0_' II
o ...... II
o ....... a.
..... ..
[[[-............................'..........-.............
---...._.-.......-.
;.
I"
... II
........ .
.....,.. ..
""'II .
"11'11 I
. ""II II
""II .
."... II
.,.,.. a
lI,a,.. II
. -. .
. -, .
. . WII.' II
. ...... II
0"" a.
,..... ,... .......... ..........."... -.... ........,............,........ ...".. ii' ....., . ... . . ... ...... -. .. .. -, ,.0. 00". . . .. . . . . . . . . .. . . . . . . . ... 0 . .~
::::::: :: .. .
""'II la . :
"u'" I'
[[[-.................-............
..-..".",..""
.
.
.
I
0'
-
... It
-....................
...u
........
..,.....
..",..
""'II
. "',..
".. II
""11
.,....
""'11
o .....,
o .....,
o ......
o .-..
o II''''
.
.
.
.
.
a
I
a
I
I
I
I
a
.~ . ... . . 0 . . .. ..... .. . . . 0 ..... 0" 0 0 ..... ,. ..0.. . 0 0 . 0 . 0 . 00. . . 0 . . .. 00. . .
[[[-
a
PREllf\lllNARY
DATA
...-.............
lilt
..... ---...........
...u
.....
o ......
I
...
..................................-[[[
. .~
DATA EN1EAEO..o......QAlE.
.
o ......
-......................-.....................-.-.............-.........-.
...-....-.......
.... - r~ Q. ...... ..................... .. .... ~ ...............
. . .... ..-. .. --..-.. ...-- - -. ... I
... ..- . ..... .. ..... aN"""
, -'--"-''--
.... . -......--
-
DA"EV1E~!ED
DATE
.....a....
.......
..
...
...
...
..
I
...
...
...
n.
...
.J
f...
.1...
JJt8
.....
a....
II..
u...
.....
I""
.....
-------
...
......
......
8.....
;.
...
..'
--
. "'--
-
-
-
- ~.
....
..~.-
...-
-...
-..
-.C
."".. .
.,.... .
.".., ,
."... ..
''''," .
o III""
o .l1li" ::
.. 0411181 .
.'...~~;''''''''''''''''..' I.
. ..r I'. ......~...................
0.l1li" .., ............ .........
o -- :: . . . . . .. . . . . . .. . . . . . . . . .
..... ..:::::........u...... ._...u............~.~...u.u..u. u..... u.. u................. .... ............ .......
...... :...... ...u .u.. ............
.,.... .
....,.. .
o "'I11III .
0-'
o .,-, ...
0.., II'
o ..,.11' .
o .,- .
0..... :
....... i;i;~i.' '.'i'."'. ...... ......
....... . .......,.............
.,.,.. . ..........,....... ......
....... . . . . . . . .. . . . .. . . .
. -- . ................
:.- . ....................
- ."""". ."."0. .........
o .-.. .
00:': .
."""i;i;ii""'~.. .... ............
....... . ......................
: 'E:' uO"" ........ 0 0" """0 ...... oo..u 0".."" 0"""""'''''''
...... : ...............
0..,
o 1_" :
0.,- -
....~..~ .
:::::-. u.:-..... 0"_" _..u........_....~-~o.... o-.._-ou"." u u. "u...... 0..........."..................................
..................~. ............... .......................... ..... . .. . . . . .
-
--~
I-
.........
--
, .
,..,1.
-
--,....
e.......
II
.
II
..
..
...
..
..
""'" II
o -' .
0.., .
II ..... I
o -, IJ
0 '" ..
.. ..,.. II
""'" II
""'" I
....,..
I. __a ~~~':~~'I~'" ........... ..... ....
---.-...... a....,...--- .............
......... ........ - .
..---..:::::.::---' -.....,
- . --...:::'::-..
I.
'1Ia' . ec---.
.,.,-
c......
'. I. I.
I"..'....
.......
c.....
I...........
I. ,..,..,.,..
..--
lo.l-e.......-
.......
.
.............................
.......1.1.
..........
.......
Ca..,.....
Dt...,.....
......
...-
.
II
.
.
. ..... ..
-
-....................................
PREL'M'NARY
DATA
-
DATE
DATA EN1ERED
-
.
.................
.
. DATA REViEWE.D
DATE
............
-
.
.
.
.
.
...... ... ..... ..1
,Su' ".
...,.. ...
..........
.......
,............ D':~:.~..
....... ........
D,.,..-
."'.f.
..!~'~
.
.
,
II
I
II
.
,
....................... .
...
...
n
..
......
..........................
.
,
.
.
.
u.
.
.
.
.
.
.. ..j.".".'.'.".""
.
.
.
......................
............................
......
.
.........................
.
.
..
II
..
"
II
. . . . . . . . . . . . .
-------
..... . ac---.
..11 - .-
.....,' - -I J'I""". - ...
,.. ., ". .
"..,.. .
. "..,.. ..
"..,.. .
. "".. II
...,.. ..
.,.,.. ..
",.,.. II
0 ....., It
0 -.. at
0 n.. II
0 ....... ..
0"- II
0 .... It
....,,-
-----
.,."
e.......
1.1.8..8.....
.....
.. ............
.....
'.'. ..
I.h"'.,..
......
CN.......
.,.",....
......
........
.,.... t. I.
........ e.
8fI"''''
-..
lau.........
....,....
1:......
a
.
.
. ...
....................... ....................... .... ...... ....... ........ .................................... .................., .. ... .. .. .... .. .......... ........ ......... ..... . . ....... . . .
...-0"""-
,...
"..,.. .
.....,.. It
"11'" .
...,... II
"".. ..
.,.". .
.,.,.. .
.,.". .
. ".... .
o ....., .
o -, .
o -, .
. ....... .
o ..- ,
..... ..
[[[-............................-
...........
.. . .. . .. .. .. . . . .. . . . .. - ..
--
;.
,...
..".. .
"..,.. ...
. "..,.. .
. "..... .
.,..,.. .
"..... .
. ",... .
"".. .
...". .
...i.. .
",.,.. .
o III'" .
.... .
. -, .
. . ....., .
0- .
..... .
[[[-
.................
.
..'
._A- ..
...... .
.. - -.. ~~~~~~.. -' .~ ......... -. .... -... -.. ..... ..,............ -.,....... ..... .... -.. -.. ......,... ....... - ..... ..... .. . . . ..... . - . . . . . - . . ; . . . . . . . .. . . . . . . . . . - - . .. - . . - . . .
;:::::: ::: ..
"",.. ... II
:::::: ~!.. . ::
....,.. .11 ..
. ""' ... .
.......~..~.. ...~~~..................... ...... ............ ..... ...... ...... ................ ....... '...' ...... ..... . ............................................. - ............
.....
.---
.
- ......
II
. "".. ,
...,.. .
.,.... ..
...,.. II
"'I'" II
o ......, II
o -, ..
o -, II
o II"''' II
o ..... II -
o ...... II . . ...
. . . . . . . .
~. ..:.:..~;.; ~;';';"-~~'-~...-~-_.-
. . ... ... II .......... ........ ...... - - 1 , J
-..-....... -- u.-""
I ....,--..-....--
_._--_.
I
.
I
.
....
.
.
,
I
-III
.............
........................
--
I.
'...8......
......
.
.
..
I
at
II
..
II
II
at
II
II
II
"
..... ........,...
.". ..
'IIIJI.".
'.1.
,............ ..........
..-. .......
.a......
..'..e-
...ft8...
.,..........,......",.......,.
.
"
.
II
II
.
.
.
.
.
.
.
.
,
II
-.8'
................. ...
.
-------
1-- . IC-.....
w... - ,-
."'r ~,.. ,........ ....- 1---
... .
11"'" ,
1111.'" ..
1I1f'" ,
'" ".. II
,.., II "
".,.. .,
'".'11 U
0 III"' II
0 _ar II
0 nar II
0 ..... II
0"- U
0 - II
,...".
- --
" " ,.
.,......e-
M""
C"I.'.'.'.
D'..'.'."
......
.......
"...".'-
.,..,....
.......
..t.,....
C........
.,.,-
c...,..
_...
lau..........
1.1.81.......
.....
1.1.8........
.....
I
.
.
. '1,
[[[--.............................
"""""""""""",-'0...
....
II'"''
, ",.".
.'11'"
, ""..
""..
."..,
,..,..
.,.,..
",.,"
o III"'
o -,
o -,
o ,.....,
0"-
0-
.
II
,
II
II
.
.
.
,
.
,
.
,
,
II
-
;.
[[['.....".'........'-"."-""""""'-"""--"'".---...
.............
....
.",.. .
11'.'11 ..,
''''''II ,
,,,,.... .
.'U,.. .
"If'" ,
. "".. .
"".. .
".... .
.,.,.. ,
,,,.,., .
o III'" .
0- .
. -, .
. ,..., .
0- .
. - .
[[['''...''.''...'''...'''..''.''..''....'''...'....'..'''''.,.,,-'0...-....................
.........................
.
..'
.-- ...
.,.... .
1181'" . . . . . . . . . . . . . . . . . . .
...... ;;i;;~~"" ;i~""'''''' '''''.'''''''''' "'" .......,.. ..... ..... ............... . .... ... .. ....... . ...., .. ... ... . . . . . .. . .., . . . . . . ~ . . . . . . . . . .
"11'" ... II
. """ ,.. II
~~:::: ;:, II
"".. " .
'''''11 .11 II
o -- ... ~.
.....~. ~.. .. ~ ~~........... .... ....,. .., . . . .... .......... ..,.. .. ... ...,...... . . . .. . . .. . . . .. . . .. .... """""""'''''''''''''''''''''''''''''' ...............
.....
.---
- .......
II
,,,,,..
.,.,..
",..,
".'11
."....
o 111M'
o _ar
. nI'
o ,1/11"
o ......
o OIl''''
,
,
U
II
II
81
II
II
II
II
..
.
.
.
.
,
.
'...
.
.
.
-...
I
-
....
.............
....................,..
QK""C
-------
APPENDIX C
-------
.$*~ "..,.. UNITED STATES ENVIRONMENT At PROTECTION AGENCY
: A \ REGION III
\ Sl 841 Chestnut Building
~..( ~"" Philadelphia. Pennsylvania 19107
RESPONSIVENESS SUMMARY FOR 'mE
POOPOSED REMEDIAL AcrICN PIAN
AT THE BENDIX FLIGHT SYSTEMS SUPERFUND SITE
SOO'l1i r-K)NmJSE, SUSQUEHANNA COUNI'Y
PENNSYLVANIA
September 30, 1988
-------
I.
Introduction
'!he Bendix Fl ight Systems site, located in Bridgewater Township, is an
active facility involved in the manufacture of aircratt instrumentation
and is currently owned by Allied Signal. Past waste handli~ practices
conducted at approximately five areas of the plant resulted in contamination
of both on-site soils and area ground water. Available information indicates
that solvent wastes were dlJtt)ed onto the property. An investigation of the
site and sampling studies have revealed the presence of assorted volatile
organic catpOUnds. '!he Bendix si te was placed on the SUperfund National
Priorities List (NPL) in June, 1986.
II.
summary of Oammunity Relations Activities
. '!he Bendix site was added to. the Superfund . National Priorities List in
June, 1986. Oammunity relations activities have been perfoDned largely
by PADER and the Bendix Corporation who have developed a close w:>rki~
relationship with area homeowners and businesses. COmmunity relations
activities have included public meetings to discuss site contamination
and possible cleanup plans. A special slide presentation, produced t:7i Bendix,
was used for this purpose. News releases and site tact sheets were issued
periodically to provide residents with intormation on site developments.
The community relations effort has been described by PADER as a grass roo~
program in that residents who received bottled water and carbon filters w:>rked
closely with the Bendix contractor. '!here was little media interest in this
site. On August 26, 1988, a public notice was placed in the Scranton Times
to infoIm residents that the Proposed Remedial Action Plan was available
for ccmnent at. the SUsquehanna Camty Planning Camlission in ~ntrose.
'!his notice also offered a public meeting on the PRAP, however requests
for a public 88eting were never received.
-------
III.
wri~ten qDmments
-
The following are responses regarding cooments made during the Public
Carment Period in regard to the Proposed Ranedial Action Plan for the
Bendix site. The catments were made in a letter dated September 22, 1988
from Celeste M. Miller, Supervisor of Environmental Affairs at the Bendix
South r-t:>ntrose plant, to Gary r-t:>ulder. (See attached)
1. Carment: '!he public notice am supporting information stated that there are
four remedial alternatives for dealing with the contamination of the west side
but listed only five items.
Response: !here are only four remedial alternatives developed for remediation
of the west portion of the 8emix site. !he listed Alternative 15 in the
Proposed Plan was an alternative developed by EPA for carparative purposes.
Information to develop this alternative can be found in the Feasability Study.
2. Q:mnent: '!he support information in the Proposed Plan contained certain
errors concerning costs associated with the remedial alternatives.
Specifically the following:
COst Presented
Proposed Cost Revision
west Side
Alternative #1
~: $0
$50,000
west Side
Alternative #3
Cbnstruction: $1,580,000
Q&M: $0
$953,000
$189,000
East Side
Alternative 11
~: $0
$50,000
Response: EPA agrees with these mxtifications for \'est Side Alternative
#3 althou;;JR these costs are just estimates. '!he cited O&M costs for both
the East and W8St Sides are typographical errors in the Proposed Plan.
3. Comnent: Alli~Signal agrees with the s~lection of Alternative #2
for the \'est Side and Alternative #5 for the East Side as outlined in the
Feasability Study as the preferred alternatives for remedial action at the
Bendix Site.
-------
Allied-Signal Aerospace Company
FligI'It Systems Division
Souttl Montrcee. PA 18843
T~One\7'7)27a-"6'
,~lIied
-==- Signal
September 22, .1988
Gary Mou1der-
PA DER
625 Cherry Street
Reading, PA 19602
-
Mark Carmon
PA DER
90 E. Union Street
Wilkes-Barre. PA
18701
R E:
Bendix Superfund Site
South Montrose. Susquehanna County. Pennsylvania
Dear Gary:
Flight Systems Division' of Allied-Signal Aerospace Company is provid-
ing the following comments to the Pennsylvania Department of Environ-
mental Resources (PADER) and the U.S. Environmental Protection Agency
as requested in the public notice for the Bendix Superfund Site.
The publ ic notice and supporting information stated that there are
four remedial alternatives for dealing with the contamination of the
west side but listed five items. The fifth item listed "15 - Excava-
tion and Off-Site Disposal of Soil", was not an alternative provided
for in the Feasibility Study. In addition. .there is no data in the
Feasibility Study to support the estimated costs indicated in the sup-
port information for implementing this remedial alternative.
The support information contained certain errors concerning costs as-
sociated with the remedial alternatives. Specifically, the following
alternatives should be revised accordingly:
West Side
Alternative 1
contaminated
groundwater.
- No remediation of soil contamination sources or the
groundwater is undertaken. Continue to monitor the
Estimated Construction cost: S 0
Estimated Annual a & M costs: S 50.000
Estimated Implementation Timeframe: 0 years
Alternative 3 - Vacuum extraction of soil in weathered till from the
trichloroethylene (TCE) tank area t~ the eastern edge of parking lot.
domestic and industrial well treatment by carbon adsorption.
Estimated Construction cost:
Estimated Annual a & M costs:
Estimated Implementation Timeframe:
$ 953,000
$ 189.000
Soi 1 2-5 years
Groundwater 11-30
years
-
'". ,. .j
-------
I;'
Gary Moulder
PADER
September 22,
Page 2
1988
East Side
-
Alternative 1 - No remediation of the soil
the contaminated groundwater is undertaken.
groundwater.
contamination sources or
Continue to monitor the
Estimated Construction cost: $ 0
Estimated Annual 0 & M costs: $ 50,000
Estimated Implementation Timeframe: 0 years
Allied-Signal agrees with the selection of Alternative #2 for the West
Side and Alternative 15 for the East Side as outlined in the
Feasibility Study as the preferred alternative for remedial action.
Allied-Signal appreciates this opportunity to provide comments to the
Pennsylvania Department of Environmental Resources and the U.S. En-
vironmental Protection Agency on the Bendix Superfund site.
Sincerely,
e~ -,rJ.tflfll/\
Celeste M. Milr;;--'
Supervisor Environmental Affairs
cc: P. Tan, EPA Region III
-------
Bendix Superfund Site Proposed Remedial Action Plan
Presented by pennsylvania Department of Environmental Resources
and the united States Environmental Protection Agency
INTRODUCTION
This proposed remedial action (Proposed Plan) plan has been pre-
pared by the pennsylvania Qepartment of Environmental Resources
(PADER) and the United States Environmental Protection Agency
(EPA) as part of PADER and EPA's Superfund pUblic outreach efforts.
This Proposed Plan presents actions that PADER and EPA may take
to respond to public concern regarding the Bendix Site in South
Montrose, pennsylvania. These actions were identified by a
Remedial Investigation/Feasibility Study (RI/FS) report prepared
to evaluate: 1) the extent of the contamination problem at the
Site, 2) the potential risks to the public health and the environ-
ment, and 3) the steps to be taken to correct the problem.
The proposed plan begins with a brief history of the Bendix Site,
followed by a summary of each of the remedial alternatives PADER
and EPA have under consideration for dealing with the contamination
at this Site. PADER's and EPA's rationale for recommending and,
in some cases eliminating anyone of these remedial alternatives
is included in each of the summaries. In addition, this proposed
Plan identifies the preliminary decision on a preferred alternative
and explains the rationale for the preference. EPA and PADER are
seeking public comment on these remedial alternatives currently
under consideration. At the conclusion' of this proposed Plan, a
glossary of terms that may be unfamiliar to the general public is
provided.
SITB DBSCRIPTION AND HISTORY
The Bendix Flight Systems Division Plant Site (Site) is located
in Bridgewater Township, Susquehanna County, Pennsylvania, ad-
jacent to the Village of South Montrose. This plant is an active
facility involved in the manufacture of aircraft instrumentation
and is currently owned by Allied Signal.
Past waste handling practices conducted at least five areas
of the plant (see Pigure 1) resulted in contamination of both on-
site soil. and area groundwater. According to available infor-
mation solvent wastes were dumped onto the Site. The drinking
water supply for the area is excl~sively private wells. Bendix
has installed filters on water lines to area residents whose wells
have become contaminated and continues to monitor and replace
these filters according to a periodic schedule.
-------
~
- 3 -
EVALUATION CRITBRIA
.
With PACER oversight, Allied-Bendix conducted a Remedial
Investigation/Feasibility Study (RI/FS) of the site during 1985
through Spring 1988. The RI/ FS evaluated several alternatives
against the following nine evaluation criteria:
- Overall rotection of human health and the environment
a resslng w et er or not a reme y provi es a equate protection
and describes how risks posed through each pathway are
eliminated, reduced or controlled through treatment,
engineering controls, or institutional controls.
- Compliance with
~eet all of the
requirements of
and/or provides
ARARs addressing whether or not a remedy will
applicable or relevant and appropriate
other Federal and State environmental statutes
grounds for invoking a waiver.
- Long-term effectiveness and permanence referring to the ability
of a remedy to maintain reliable protection of human health and
the environment over time once cleanup goals have been met.
- Reduction of toxicit , mobilit or volume is the anticipated
per ormance 0 the treatment technologies a remedy may employ.
- Short-term effectiveness addresses the period of time needed t~
achieve protection, and any adverse impacts on human health a~
the environment that may be posed during the construction and
implementation period until cleanup goals are achieved.
- Implementability is the technical and administrative
feasibility of a remedy, including the availability of
materials and services needed to implement a particular option.
- Cost includes estimated capital and operation and maintenance
COSts and net present worth costs.
- State Acceptance indicates whether, based on its review of the
RI/FS and the proposed Plan, the State concurs on, opposes,
or haa no comment on the preferred alternative at the present
time.
- COm8DDity Acceptance will be assessed in the Record of Decision
follow1nq a review of the public comments received on the
RI/FS report and the Proposed Plan.
-------
- 6 -
Alternative 5 - Excavation, soil aeration and replacement of
soils from highly contaminated areas, soil vacuum extraction in
~oderate to low contaminated areas, groundwater recovery/treatment
to orevent off-site contamination migration, treatment of off-site
dom~stic supply wells.
Estimated Construction cost:
Estimated Annual 0 & M cost:
Estimated Implementation timeframe:
$1,210.0"".
231,0"0
soil 3 yrs.
groundwater
20-40 yrs.
PRELIMINARY SELECTION OF REMEDIAL ALTERNATIVE
The following are brief discussions which identify the preferred
alternatives for the east and west portions of the Bendix Site.
The selection of these alternatives are preliminary and could
change as a result of public comments and other new information.
West Site Area
The preferred alternative is alternative number 2. This alter-
native includes vacuum extraction, groundwater supply treatment,
and groundwater recovery/treatment.
East Site Area
The preferred alternative is alternative number 5. This alter-
native includes vacuum extraction, soil aeration, groundwater
supply treatment, and groundwater recovery/treatm~nt. .
Based on new information or public comments, EPA, in consultation
with PACER, may modify the preferred alternative or select another
response action presented in this proposed Plan and RI/FS report.
The public, therefore, is encouraged to review and comment on all
of the alternatives identified in this proposed Plan. The RI/FS
report should be consulted for more information on these alternatives.
All alternatives for both the east and west Site areas provide
complete protection, in the short-term, to the groundwater users
by treatmeQ~ ~f tb. water at the individual wells. Long-term
effective.=_t8 provided by the installation of facilities to
remove co tiOD from the groundwater and the soils at the
Site...' .
EPA, in consultation with PACER, has made a preliminary
determination that the preferred alternatives provide the best
balance of trade-offs with respect to the nine criteria. If
selected, the preferred alternatives are anticipated to meet the
following statutory requirements to:
-------
- 7 -
- protect human heal~h and the environment
- Attain ARARs
- Be cost-effective.
- utilize permanent solutions and alternative treatment
(or resource recovery) technologies to the maximum
extent practicable
SUMMARIZING THE STATUTORY FINDINGS
In summary, at this time the preferred alternatives are believed to
provide the best balance of trade-offs among alternatives with
respect to the criteria used to evaluate remedies. Based on the
information available at this time, therefore, EPA and PADER
believe the preferred alternative would be protective, would
attain ARARS, would be cost-effective, and would utilize permanent
solutions and alternative treatment technologies or resource
recovery technologies to the maximum extent practicable.
NEXT STEPS
Following the conclusion of the 3g-day public comment period on
this proposed plan, a Responsiveness Summary will be prepared.
The Responsiveness Summary summarizes citizens' comments on the
Proposed Plan and PADER and EPA's responses to these comments.
Thereafter, PADER and EPA will prepare a formal decision document
that summarizes the decision process and the selected remedy.
This document will include the Responsiveness Summary. Copies
will be made available, for public review, in the information
repository listed previously.
GLOSSARY OF TERMS
Administrative Record (AR) - A legal document that
information on a Superfund site. The AR serves as
the selection of a.Superfund response action, and
available to the public.
contains
the basis for
this record is
ARARs - Applicable or relevant and appropriate Federal, State or
other promulgated public health and environmental requirement.
- The purpose of this study is to identify
ernatives for remedial action, and to
technology and costs involved with the
.
National ContingenCX plan (NCP) - Contains the regulations that
govern the superfun program.
-------
APPENDI,X D ~ ~
~.~
------- |