WI0300104_Quarterly Progress_20061120

Engineering for the Environment PlanningforPeople.
1055
ive, Suite A
E. West Chester, ew rPA19380-42 3
te1610.840.9100 fax [phone]
www.advancedgeoservices.com
i
March 7, 2006 2004-1292-00
Mr. Kim Caulk
North Carolina Department of Environment and Natural Resources AQUIFFR-RECEIVED / DENR / DWQPROTFCVON S
Division of Waste Management ECTION
1646 Mail Service Center NOV 2 02006
Raleigh, NC 27699-1646
RE: Remedial Action Quarterly Progress Report
"90 Day Report"
REC Program — DWM No. 99-SF-188
Former Pelton and Crane Facility, Charlotte, North Carolina
_ Dear Mr. Caulk:
` In accordance with 15A NCAC 13C.0306(o) Advanced GeoServices Corp. (AGC), on behalf of
v~ ya Siemens Medical Solutions USA Inc. (SMS), submits this Remedial Action Quarterly Progress
Report. This report describes the activities at the Former Pelton and Crane Site (Figure 1)
between November 1, 2005 and January 31, 2005, and the activities scheduled for the upcoming
three months. This report is being submitted within 90 days of the completion/submittal of the
Groundwater Remedial Action Construction Completion Report (GRACCR), dated December 9,
2005 in accordance with the REC Program Implementation Guidance. A construction summary
of the monitoring wells, injection wells, and piezometers are described in Table 1. Monitoring
and injection well locations are shown on Figure 2.
1. Activities Performed
Groundwater monitoring for boron in accordance ents of
the Underground Injection Control (UIC) ermit (WI0300104) as
performed in November 2005 (i.e., 90 days post- i ' The results f
this event, and previous boron sampling events, are s le
2.
• One interim process monitoring groundwater sampling event was
completed in November 2005 (90 days post -injection). The sampling was
performed in accordance with Table 6-4 in the Groundwater Remedial
Action Engineering Design Report (GRAEDR) and the UIC permit. The
results of this event, and previous interim events, are summarized on
Table 3.
a
F:\OFICEAGC1FROJECTS\Files\2004-1292\Reports\Quanerly\FouA Quarterly Reporr2005.doc

Mr. Kim Caulk
i 2004-1201-00
March 7, 2006
Page 2of5
• The initial process monitoring groundwater sampling event was completed
in December 2005 (120 days post -injection). The sampling was
performed in accordance with Table 6-4 in the GRAEDR and the UIC
permit. The results of this event are provided in Tables 4 and 5. A
summary of all volatile organic compounds (VOCs) groundwater results
are also presented on Plate 1.
• Annual indoor air monitoring was conducted in December 2005 at the Site
(see Attachment A).
2. Performance Evaluation
• Boron groundwater concentrations In the up -gradient monitoring well
(1\4W-39) continued to increase (currently 200 ug/L) with respect to the
baseline sampling event (71.2 ug/L). However, the up -gradient
concentrations are still below the NC 2L standard of 315 µg/L. Boron
groundwater concentrations in monitoring wells MW-40 and MW-41, 35
feet and 50 feet down -gradient of the injection wells, respectively,
continue to have concentrations approximately 1.5 orders -of -magnitude
above the baseline concentrations (i.e., approximately 100 ug/L vs.
approximately 4,000 ug/L).
• Total organic carbon (TOC) is a key indicator for evaluating the extent of
SRS'rm 1 distribution in the bedrock. The 120-day post -injection TOC
results continue to show a 2 to 3 order -of -magnitude increase in TOC
concentrations at the first down -gradient (approximately 25 ft.) monitoring
well cluster (MW-1 and MW-40) in the shallow groundwater zone (i.e.,
upper 100 ft. No increase in TOC continues to be observed in the deep
groundwater (MW-38) at the same distance down-gradient.2 The next
down -gradient (approximately 50 ft) shallow groundwater monitoring well
cluster, MW-18 and MW-41, have TOC concentrations 2X and 50X,
respectively, above the baseline concentrations. Monitoring wells further
down -gradient did not show any significant increases in TOC.
• Dissolved oxygen (DO) levels remained below 1 mg/L3 in all the
monitoring wells MW-1, MW-38, MW-40, MW-41, and MW-18 near
(i.e., within 50- feet down -gradient) the Phase I injection zone, and were
typically below 0.5 mg/L during the 90-day and 120-day post -injection
I SRSTM is a vegetable oil emulsion. SRSTM was injected into the groundwater to help stimulate anaerobic
biodegradation by providing a carbon food source for the naturally occurring microorganisms.
2 SRSTM injections were only made within the upper 100 ft.
3 Dissolved oxygen levels above 1 mg/L3 are generally considered not conducive to anaerobic biodegradation of
chlorinated aliphatic hydrocarbons such as WE
F:\OFICEAGC\PROJECTS\Files\20041292\Reports\Quarterly\Fourth Quarterly Report2005.doc

Mr. Kim Caulk
2004-1201-00
March 7, 2006
Page 3 of 5
interim process monitoring events. The DO levels in monitoring wells
100 feet down -gradient of the Phase I injection zone (i.e., MW-42 and
MW-43) remained below 0.5 mg/L during the 90-day post -injection event
but increased to slightly above 1.0 mg/L during the 120-day post -injection
event. Monitoring wells MW-44 and MW-45, approximately 130 feet
down -gradient of the injection zone, had average DO levels of 0.7 mg/L
and 1.1 mg/L during the 90-day and 120-day post -injection sampling
events; this is a slight increase from the 30-day and 60-day post -injection
sampling events and represents an upward trend from the baseline
sampling event.
The oxidation/reduction potential (ORP) in the first down -gradient well
cluster (i.e., MW-1 and MW-40) in the shallow groundwater during the
90-day and 120-day post -injection sampling events decreased in
comparison to the 30-day and 60-day post -injection sampling events, and
were less than 50 millivolts (mv) in December 2005. The ORP increased
in the deep groundwater well (MW-38) but remained well below -100 mv.
The remaining down -gradient process monitoring wells were consistently
below -100 mv.
The pH results for the 90-day and 120-day post -injection events in
monitoring wells MW-1 and MW-40 increased by 2 or 3 standard units as
compared with the 30-day post -injection and 60-day post -injection results.
The breakdown of the SRSTM can cause a lowering of the pH if the
groundwater formation does not have sufficient buffering capacity. The
formation appears to be slowly buffering this effect of the SRSTM. The
remaining shallow groundwater wells typically had pH levels within the
range of 5 to 95. Deep groundwater well MW-38 continues to have a pH
greater than 12, which is consistent with the baseline sampling event.
A comparison of the monitored natural attenuation (MNA) parameters in
Table 4 and field parameters in Table 3 to the U.S Air Force Center for
Environmental Excellence screening criteria for evidence of
biodegradation of chlorinated organics indicates the following:
Strong evidence for biodegradation occurring is present in the
shallow groundwater within 50 feet down -gradient of the injection
zone;
4 Oxidation/reduction potentials greater than 50 millivolts are generally considered not conducive to anaerobic
biodegradtion of chlorinated aliphatic hydrocarbons such as TCE.
5 pH conditions within 5 to 9 standard units generally considered conducive to anaerobic biodegradtion of
chlorinated aliphatic hydrocarbons such as TCE.
F:\OFICEAGC\PROIECTS\Files\2004-1292\Reports\Quarterly\Fourth Quarterly Report2005.doc

Mr. Kim Caulk
2004-1201-00
March 7, 2006
Page 4 of 5
Limited evidence for biodegradation occurring in the deep
groundwater within 50 feet down -gradient of the injection zone.
However, increases in dissolved gases (i.e., ethane, ethene and
methane) may be an indication of some beneficial effects from the
substrate injection in the shallow groundwater zone above this
well; and,
Adequate evidence for biodegradation in the shallow groundwater
75 to 100 feet down -gradient on the injection zone.
• Trichloroethene (TCE), 1, 1 -Dichloroethene (IIDCE), 1,2-Dichloroethene
(12DCE), and Vinyl Chloride (VC) continue to be the predominant VOCs
detected at the Site. Order of magnitude reductions in TCE concentrations
(from the original baseline sampling) occurred in shallow wells: MW-40,
MW-18, MW-41, and MW-42. Significant reductions in TCE
concentrations were also observed in shallow wells MW-1 and MW-43.
Because the TCE concentration in MW-1 is still within the historic range
of concentrations at that location, we are not able to yet reach any
definitive conclusions regarding the efficacy of the remedial system at that
location. A variety of concentration trends were observed at these wells
for the biodegradation breakdown compounds (i.e., IIDCE, 12DCE and
VC). For example:
At MW-40 —1,1-DCE, 1,2-DCE and VC all significantly declined;
At MW-41 — 1, 1 -DCE and 1,2-DCE both significantly declined but
VC significantly increased; and,
At MW-42 —1,2-DCE significantly increased but 1,1-DCE and VC
remained stable.
The increase in dissolved gases at the first down -gradient well cluster
(MW-1, MW-40 and MW-38) is a good indication that complete
biodegradation is occurring.
In summary, based on an overall assessment of the field data and
groundwater chemical data, the injection of the SRSTM is appears to be
promoting the biodegradation of the chlorinated aliphatic hydrocarbons in
the shallow groundwater within the vicinity of the injection wells.
Continued monitoring will help determine the effectiveness of the
remedial system outside of the initial injection area:
• SMS and the current property owner initiated discussion regarding
potential land use restrictions that would be used to re-evaluate the
selected soil remedy for areas of concern in the building and the
shipping/receiving area off of Pelton Street.
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarterly\Fourth Quarterly Repor=05.doc

Mr. Kim Caulk
2004-1201-00
March 7, 2006
Page 5 of 5
• Samples of the borrow proposed for use as backfill during soil remediation
were collected and sent for chemical testing to assure the fill source meets
the REC Program Unrestricted Use Soil Remediation Goals.
3. Difficulties Encountered
• None.
4. Activities Scheduled for Upcoming Three Months
• Continue evaluation and performance of post -injection groundwater
monitoring.
• Continue discussions regarding land use restrictions.
• Initiate soil removal activities for the Western Baghouse Area, Unnamed
Tributary, and the North Parking Lot.
• Perform annual indoor air monitoring.
If you have any questions, please call me at 610-840-9122. The certification statements are
included in Attachment B.
Sincerely,
ADVANC DE G -SERV'--
TES CORP..
�' e„ ram,,• �
Paul G. Stratman, P.E., P.G.
Registered Site Manager
PGS:vm
Enclosures
cc: Stephen Kirschner, AGC
Robert L. Friedman, Siemens
Charles Case, Hunton and Williams
Thomas McKittrick, Clanton Partners
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarrerly\Fourth Quarterly Report2005.doc

TABLES
F:\OFICEAGC\PROJECTS\Files\20041292\Reports\Quutuly\Fourth Quutaly Report2005.doc

Table 1
Monitoring Well, Injection Well, and Piezometer Construction Summary
Former Pelton and Crane Facility
Charlotte, NC
Well
Identification
Monitoring Well
Type
Date
Installed
Outer Casing
Diameter/Depth
Boring Depth
(ft. bgs.')
Ground Surface
Elevation
Elevation
TOICZ
Screen/Open Length
(ft.)
Monitored Interval
Monitored
Zone
Northing
Easting
(ft. bgs.)
Elevation (ft.)
Phase I
PZ-1 **
1-inch diameter PVC
Jun-00
NA
15
724.1
723.86
10
5-15
709.1 - 719.1
Soils
531517.66
1440011.88
PZ-2 **
1-inch diameter PVC
Jun-00
NA
18
726.89
728.07
15
3 - 18
708.89 - 723.89
Soils
531792.17
1440055.54
PZ-3 **
1-inch diameter PVC
Jun-00
NA
28
726.27
727.05
20
8-28
698.27 - 718.27
Soils
531884.85
1439942.07
PZ-4 **
1-inch diameter PVC
Jun-00
NA
23
726.25
727.33
20
3-23
703.25 - 723.25
Soils
531862.73
1439850.17
PZ-5 **
1-inch diameter PVC
Jun-00
NA
23
724.8
725.4
20
3-23
702.17 - 722.17
Soils
531657.23
1439789.37
PZ-7 **
1-inch diameter PVC
Jun-00
NA
20
724.51
725.62
15
5 - 20
704.51 - 719.51
Soils
531372.81
1439837.70
PZ-8 **
1-inch diameter PVC
Jun-00
NA
22
726.61
728.06
20.
2'- 22
704.61 - 724.61
Soils
531387.89
1440108.99
MW-1
2-inch diameter PVC
Sep-00
10"/15-ft.
35
724.1
723.86
10
25 - 35
689.15 - 699.15
Bedrock
531517.66
1440011.88
MW-2
2-inch diameter PVC
Sep-00
10"/20-ft.
40
726.46
726.19
10
30 - 40
686.46 - 696.46
Soils
531850.05
1439863.12
NW-3
2-inch diameter PVC
Sep-00
10"/20-ft.
32
725.15
..724.83
8
24 - 32
693.15 - 701.15
Soils
531646.98
1439781.66
NM-4
2-inch diameter PVC
Sp-00
10"/20-ft.
39
725.53
725.3
10
29 - 39
686.53 - 696.53
Soils
531529.34
1439724.79
NM-5
2-inch diameter PVC
Sep-00
10"/20-ft.
27
726.58
728.96
5
22-27
699.58 - 704.58
Soils
531399.24
1440117.60
MW-6
2-inch diameter PVC
-0010"/10-ft.
15
726.44
726.18
2
13-15
711.44 - 713.44
Soils
531556.05
1439897.42
MW-7
2-inch diameter PVC
je -00
10"/28-ft.
34
727.04
726.78
3
31-34
693.04 - 696.04
Soils
531890.37
1439949.97
NW-8
2-inch diameter PVC
Sep-00
10"/20-ft.
26
724.01
726.44
4
22 - 2
698.01 - 702.01
Soils
531389.381
1439806.50
PHASE II
MW-9
2-inch diameter PVC
A r-01
NA
27
725.45
725.16
10
17 - 27
698.45 - 708.45
Soils
531244.98
1439914.40
NW-10
2-inch diameter PVC
A r-01
NA
36
721.96
721.77
10
26 - 36
685.87 - 695.87
Soils
531343.67
1439720.97
MW-11
2-inch diameter PVC
A r-01
NA
35
726.93
726.24
10
25 - 35
691.93 - 701.93
Soils
531797.97
1440049.22
MW-12
2-inch diameter PVC
A r-01
NA
28
727.26
727.09
10
18 - 28
699.26 - 709.26
Soils
531963.71
1439854.66
MW-15
o en borehole
A r-01
6"/77-ft.
97
727.34
726.89
20*
77 - 97
630.34 - 650.34
S. bedrock
531899.10
1439941.71
MW-16
open borehole
. A r-01
6"/43-ft.
58
724.19
723.96
15*
43 - 58
666.19 = 681.19
S. bedrock
531548.76
1439732.31
MW-17
open borehole
A r-01
6"/39-ft.
59
721.87
721.61
20*
39 - 59
662.96 - 682.96
S. bedrock
531336.52
1439713.11
MW-18
2-inch diameter PVC
A r-01
10"/21-ft. & 6"/55-ft.
85
723.26
722.91
20
65.-85
638.26 - 658.26
S. bedrock
531540.25
1439989.07
MW-19
2-inch diameter PVC
A r-01
NA
23
729.79
729.09
10
13-23
707.79 - 717.79
Soils
532003.08
1439947.96
NM-20
open borehole
Aug-01
10"/47-ft. & 6"/100-ft.
162
725.95
725.45
62*
100 - 162
625.95 - 563.95
D. bedrock
531775.61
1439843.54
MW-21
open borehole
Aug-01
10"/59-ft. & 6"/100-ft.
122
724.20
724.03
22*
100 - 122
624.20 - 602.20
D. bedrock
531564.36
1439737.96
MW-22
open borehole
Au -01
10"/42-ft. & 6"/100-ft.
162
722.24
722.06
62*
100 - 162
622.24 - 560.24
D. bedrock
531360.74
1439725.22
MW-23
open borehole
Au -01
6"/45-ft.
59
725.82
725.40
14*
45 - 59
680.82 - 666.82
S. bedrock
531754.08
1439833.56
MW-24
2-inch diameter PVC
Au -01
NA
43
732.71
734.77
10
33 - 43
699.71 - 689.71
Soils
531986.80
1440060.38
MW-32
open borehole
Ma -03
6"/80-ft.
100
729.63
729.33
20*
807100
649.63 - 629.63
S. bedrock
531998.02
1439955.21
MW-33
open borehole
May-03
6"/40-ft.
60
720.90
720.58
20*
40-60
680.90 - 660.90
S. bedrock
532045.68
1439653.12
MW-36
open borehole
Ma -03
10"/8.5-ft. & 6"/100-ft.
140
720.79
720.44
40*
100-140
620.79 - 580.79
D. bedrock
532051.76
1439644.88
MW-37
open borehole
Ma -03
10"/60-ft. & 6"/200-ft.
240
724.28
723.47
40*
200-240
524.28 - 484.28
D. bedrock
531542.24
1439733.28
MW-38
open borehole
May-03
10"/25-ft. & 6"/160-ft.
200
723.67
723.39
40*
1 160-200
563.67 - 523.67
D. bedrock
531532.90
1440007.51
F.\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quartedy\Table 1 4th Quarter 2005ads Page 1 of 2

1
Table 1
Monitoring Well, Injection Well, and Piezometer Construction Summary
Former Pelton and Crane Facility
Charlotte, NC
Well
Identification
Monitoring Well
Type
Date
Installed
Outer Casing
Diameter/Depth
Boring Depth
(ft. bgs.')
Ground Surface
Elevation
Elevation
TOICZ
I Screen/Open Length
(ft-)
Monitored Interval
Monitored
Zone
Northing
Easting
(ft. bgs.)
Elevation (ft.)
PHASE H OFF -SITE
MW-13
2-inch diameter PVC
A `r-01
NA
11
720.43
720.2
5
6 - 11
709.43 - 714.43
Soils
531969.73
1439626.01
MW-14
2-inch diameter PVC
A r-01
NA
36
718.15
717.58
10
26 - 36
682.15 - 692.15
Soils
531679.22
1439540.08
MW-25
2-inch diameter PVC
Jun-02
NA
35
713.79
713.40
10
25-35
688.4-678.4
Soils
531616.09
1439502.58
MW-26
2-inch diameter PVC
Jun-02
NA
35
722.49
722.02
10
25-35
697.02-687.02
Soils
531353.74
1439462.28
MW-27
2-inch diameter PVC
Jun-02
6"/42-ft.
62
713.74
.713.41
15
47-62
666.41-651.41
S. bedrock
531610.12
1439511.16
MW-28
open borehole
Jun-02
6"/40-ft.
60
722.17
721.91
20*
40-60
681.91-661.91
S. bedrock
531346.51
1439475.52
MW-29
2-inch diameter PVC
Jun-02
6"/50-ft.
66
723.04
722.76
15
51-66
671.76-656.76
S. bedrock
531161.33
1439609.86
MW-30
open borehole
Jun-02
8"/50-ft. & 6"/110-ft.
140
713.73
7i3.34
30*
110-140
603.34-573.34
D. bedrock
531606.11
1439517.01
MW-31
open borehole
Jun-02
10 735-ft. & 6"/95-ft.
115
722.35
722.07
21 *
95-115
627.07-606.07
D. bedrock
531350.82
1439467.47
MW-34
open borehole
May-03
6"/50-ft.
70
719.55
119.05
20*
50-70
669.55 - 649.55
S. bedrock
531911.93
1439542.98
MW-35
open borehole
May-03
10"/35-ft. & 6"/100-ft.
140
719.18+-'718.98
40*
100-140
619.18 - 579.18
D. bedrock
531907.89
1439546.68
SUPPLEMENTAL
PHASE H OFF SITE
MW-46
o en borehole
Feb-05
4"/80-ft.
100
716.40
716.08
20*
80-100
636.40-616.40
S. bedrock
532343.19
1440084.35
MW-47
open borehole
Jan-05
8"/84-ft. & 4"/150-ft
170
716.16
715.84
20*
150-170
566.16-546.16
D. bedrock
532349.16
1440082.91
MW-48
open borehole
A r-05
8"/16-ft. & 4"/80-ft
100
717.98
716.61
20*
80-100
637.98-617.98
S. bedrock
532249.50
1439763.66
MW-49
2-inch diameter PVC
Apr-05
10"/18-ft & 2"-170'
170
717.68
717.40
20
15070
567.68-547.68
D. bedrock
532257.73
1439769.36
GROUNDWATER REMEDIAL ACTION
MW-39
open borehole
Dec-04
8"/25-ft. & 4"/50-ft.
75
727.71
727.32
25*
50-75
677.70-652.71
S. bedrock
531438.05
1440144.36
MW-40
open borehole
Dec-04
8"/25-ft. & 4"/65-ft.
95
723.80
723.56
30*
65-95
658.80-628.80
S. bedrock.
531527.17
1440005.28
MW-41
open borehole
Dec-04
4"/25-ft.
55
723.41
723.05
30*
25-55
698.41-668.41
S. bedrock
531535.92
1439987.27
MW-42
o enborehole
Ma -05
4"/25-ft.
55.3
726.57
726.45
30.3*
25-55.3
701.57-671.27
S. bedrock
531554.07
1439943.70
MW-43
open borehole
May-05
8"/20.5-ft & 4"/65-ft
95
726.51
726.08
30*
65-95
661.51-631.51
S. bedrock
531557.17
1439938.07
MW-44
open borehole
May-05
8"/14.2-ft & 4"/65-ft
95.5
726.43
725.82
30.5*
65-95.5
661.43-630.93
S. bedrock
531559.89
1439898.63
MW-45
open borehole
A r-05
8"/35-ft & 4"/65-ft
95
726.38
725.89
30*
65-95
661.38-631.38
S. bedrock
531686.86
1439960.52
IW-IS
open borehole
A r-05
4"/25.5-ft
55
725.13
724.76
29.5*
25.5-55
699.63-670.13
S. bedrock
531519.33
1440038.81
IW-lI
open borehole
A r-05
4"/64-ft
93
1 724.60
724.33
29*
64-93
660.60-631.60
S. bedrock
531523.57
1440030.36
IW-2S
open borehole
A r-05
4"/27-ft
56.4
726.43
726.23
29.4*
27-56.4
699.43-670.03
S. bedrock
531497.10
1440027.94
IW-2I
open borehole
Apr-05
4"/65-ft
95
726.40
726.06
30*
65-95
661.40-631.40 1
S. bedrock 1
531500.411
1440020.66
Notes:
1. bgs. - Below ground surface
2. TOIC - Top of inner casing
3. PVC - Poly -vinyl chloride well casing
4. NA - Not Applicable
6. Elevation Datum is North American Vertical Datum (NAVD 88)
7. * Indicates length of open borehole
8. Filter pack goes from 21 to 26 feet.
9. PZ-6 not installed in boring SB-22 because water was not encountered before equipment refusal was met.
10. Filter pack goes from 148 to 170 feet
** - Abandoned in accordance with state regulations.,
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarterly\Table 1 4th Quarter 2005.)ds
Page 2 of 2

TABLE 2
SUMMARY OF GROUNDWATER BORON (µg/L) RESULTS
Former Pelton and Crane Facility
Charlotte, NC
Up -Gradient of
25' Down -Gradient
50' Down -Gradient of
Sampling Event
Injection Wells
of Injection Wells
Injection Wells
MW-39
MW-40
MW-41
Baseline
71.2
117
102
June 2005
30-Day Post -Injection
165
3,970
4,040
September 2005
90-Day Post -Injection
200
4,140
3,830
November 2005
F:IOFICEAGCIPROJECTS1Files120D4-12921ReportslQuarlerlylTable 2 4th Quarter 2005.)ds

E3
SUMMARY OF INTERIM PROCESS MONITORING
FIELD PARAMETERS AND TOTAL ORGANIC CARBON (TOC) RESULTS
Former Pelton and Crane Facility
Charlotte, NC
-el- I of 2
Location
Monitored Interval
(ft b sl)
Distance Down
Gradient (ft)
Date
Time Since Initial
Injection (days)
pH
SPC (ms)
ORP (mv)
Temp (°C)
DO ( m)
Turb (ntu)
TOC (m
MW-39
50-75
-135
June, 2005
baseline
12.23
2.26
177
22.58
4.76
1.96
2.3
September, 2005
30
13.07
1.99
78
24.71
0.65
7.8
0.63
October, 2005
60
12.27
1.92
91
20.53
0.81
25.9
1.3
November, 2005
90
12.6
2.33
-75
19.53
1.55
8.64
2
December, 2005
120
10.92
2.48
-58
11.06
1.27
8.15
2
MW-1
25-35
25
June, 2005
baseline
12.23
2.54
-69
16.17
0.68
5.05
8.1
September, 2005
30
4.79
2.329
62
24.8
0.77
237.5
4230
October, 2005
60
4.81
1.95
151
20.7
0.14
**
3000
November, 2005
90
3.88
2.36
118
22.17
0.08
**
3770
December, 2005
120
6.29
2.42
46
17.39
0.13
**
8,560
MW-40
65-95
35
June, 2005
baseline
7.26
0.339
-106
27.03
0.52
15.6
0.98
September, 2005
30
5.28
2.08
-1
27.22
0.66
273.8
14400
October, 2005
60
5.35
1.86
79
21.14
0.25
**
2860
November, 2005
90
4.36
2.92
2
21.46
0.23
**
9870
December, 2005
120
7.73
2.91
-41
11.68
0.60
**
8,950
MW-38
160-200
35
June, 2005
baseline
12.73
4.05
-598
25.52
0.48
3.55
15.8
September, 2005
30
13.96
3.67
-551
25.03
0.46
4.23
13.9
October, 2005
60
12.49
3.2
-575
21.84
0.30
7.2
14.2
November, 2005
90
12.85
3.75
-334
21.31
0.47
2.34
14.4
December, 2005
120
13.49
3.89
-237
17.45
0.73
3.77
13.6
MW-41
25-55
50
June, 2005
baseline
6.58
0.436
15
18.43
0.16
23.4
1.4
September, 2005
30
6.65
0.5516
-168
22.97
0.56
50
79.9
October, 2005
60
6.79
0.403
-104
20.75
0.15
17.9
60.4
November, 2005
90
6.25
0.570
-96
20.77
0.40
14.39
76.4
December, 2005
120
8.28
0.688
-152
18.18
0.13
10.30
80.5
MW-18
65-85
50
June, 2005
baseline
6.57
0.452
-9
21.73
0.24
9.04
2.7
September, 2005
30
6.71
0.3305
-108
22.11
0.76
8.00
9.6
October, 2005
60
7.08
0.312
-303
21.56
0.07
8.79
5.3
November, 2005
90
6.95
0.357
-202
20.38
0.31
6.11
6.7
December, 2005 1
120
9.72
0.364
-153
15.83
0.45
2.50
4.7
F:\OFICEAGC\PROJECfS\Files\2004-1292\Reports\Quarterly\Table 3 4th Quarter 2005.x1s

3
SUMMARY OF INTERIM PROCESS MONITORING
FIELD PARAMETERS AND TOTAL ORGANIC CARBON (TOC) RESULTS
Former Pelton and Crane Facility
Charlotte, NC
-_a-2of2
Location
Monitored Interval
(ft b sl)
Distance Down
Gradient (ft)
Date
Time Since Initial
Injection (days)
pli
SPC (ms)
ORP (mv)
Temp (°C)
DO ( m)
Turb (ntu)
TOC (m L
MW-42
25-55
96
June, 2005
baseline
6.69
0.413
-420
19.80
0.22
91.4
2.2
September, 2005
30
6.62
0.4577
-119
1 24.88
0.54
379
1.8
October, 2005
60
6.98
0.339
-160
21.04
0.39
27
2.1
November, 2005
90
6.65
0.418
-114
21.11
0.29
16.85
2.5
December, 2005
120
9.09
0.446
-129
18.98
1.03
4.01
2.2
MW-43
65-95
102
June, 2005
baseline
7.69
0.371
-519
31.17
0.03
197
1.3
September, 2005
30
7.98
0.3527
-219
21.64
0.49
24
0.67
October, 2005
60
7.75
0.29
-322
21.17
0.07
12.9
1.2
November, 2005
90
7.91
0.359
-193
21.18
0.27
15.83
8.7
December, 2005
120
10.51
0.349
-172
17.41
1.15
9.49
1.9
MW-44
65-95
137
June, 2005
baseline
7.49
0.336
-386
20.72
0.28
*
1.4
September, 2005
30
7.03
0.3709
-111
22.37
0.72
11.7
1.4
October, 2005
60
7
0.289
-234
21.31
0.26
21.7
1.1
November, 2005
90
7.06
0.352
-143
21.06
0.27
4.38
1.8
December, 2005
120
9.3
0.369
-120
18.48
1.05
4.71
1.4
MW-45
65-95
130 4
June, 2005
baseline
8.75
0.236
-372
22.65
0.31
932
1.9
September, 2005
30
9.21
0.285
42
22.77
0.67
336
ND
October, 2005
60
7.57
0.239
72
22.93
0.59
79.1
0.86 J
November, 2005
90
6.83
0.278
-12
21.95
1.3
57.39
1.2
December, 2005
120
9.5
0.249
-124
20.61 1
0.87
22.4
1.4
1: ft bgs - Feet Below Ground Surface
2: NC 2L Standard for Boron is 315 µg/L
3: NT - Well was not tested for this parameter
4: MW-45 also approximately 145 feet north from line connecting all other wells
*: Turbidity was too high for the instrument to read correctly
**: Turbidity was too high for the instrument to read correctly due to opaque water from the injection of the vegetable oil emulsion
Denotes baseline reading
F:\OFICEAGC\PROIECTS\Files\2004-1292\Reporb\Quarterly\Table 3 4th Quarter 2005.xls

TABLE 4
COMPARISON OF BASELINE AND 120 DAY POST -INJECTION MNA SAMPLING RESULTS
Former Pelton and Crane Facility
Charlotte, North Carolina
Page 1 of 2
LOCATION
150' Upgradient of Original Plating Area
Original Plating/Process Line Discharge Break Areas
25' Down Gradient of Injection Wells
50' Down Gradient of Injection Wells
WELL
MW-39
MW-1
MW40
MW-38
MW41
MW-18
TYPE
Shallow Bedrock
Shallow Bedrock
Shallow Bedrock
Deep Bedrock
Shallow Bedrock
Shallow Bedrock
DEPTH (ft. bgs)
50-75
25-35
65-95
160-200
25-55
65-85
SAMPLE DATE
6/21/2005
12/12/2005
6/1/2005
12/14/2005
6/22/2005
12/14/2005
5/27/2005
12/12/2005
6/l/2005
= 12/14/2005
5/31/2005
12/13/2005
PARAMETER UNITS
RESULT Q I DL
RESULT
DL
RESULT I Q I DL
I RESULT I Q I DL
RESULT I Q I DO
RESULT Q DL
RESULT I Q I DL
I RESULT I DL
RESULT 10 1 DL
I RESULT DL
RESULT I Q DL
RESULT Q DL
Field Parameter
pH
12.23
10.92
12.23
6.29
7.26
7.73
12.73
13.49
6.58
8.28
6.69
9.72
Specific Conductivity
mS
2.26
2.48
2.54
2.42
0.339
2.91
4.05
3.89
0.436
0.688
0.455
0.364
Redox Potential
mV
177
-58
-69
46
-106
41
-598
-237
15
-152
-11
-153
Temperature
°C
22.58
11.06
16.17
17.39
27.03
11.68
25.52
17.45
18.43
18.18
21.11
15.83
Dissolved Oxygen
ppm
4.76
1.27
0.68
0.13
0.52
0.6
0.48
0.73
0.16
0.13
0.24
0.45
Turbidity
NTU
1.96
8.15
5.05
NR
15.6
NR
3.55
3.77
23.4
10.3
10.48
2.5
Conventionals
Bicarbonate Alkalinity
mg/L
U
5
U
5
U
5
651
5
147
5
916
5
U
5
U
5
173
5
236
5
191
5
145
5
Carbonate Alkalinity
mg/L
140
5
76
5
272
5
U
5
U
5
U
5
143
5
103
5
U
5
U.
5
U
5
U
5
Chloride
mg/L
5.4
3
4.7
3
11.6
3
25.6
J
3
12.4
3
21.7
3
4.9
J
6
5.9
J
6
12.2
3
13.7
3
15.5
3
15.8
3
Ferrous Iron
mg/L
U
0.2
U
0.2
0.097
J
0.2
66
10
UJ
0.2
445
40
0.05
J
0.2
U
0.2
9.6
1
10.1
10
1 0.97
J
0.2
0.06
J
0.2
Nitrate
mg/L
1.1
0.5
0.27
J
0.5
0.18
J
0.5
0.25
J
0.5
U
0.5
' 0.21
J
0.5
U
1
0.24
J
1
0.046
J
0.5
0.2
J
0.5
0.051
J
0.5
0.19
J
0.5
Nitrite
mg/L
U
0.5
0.98
0.5
0.12
J
0.5
0.65
J
2.5
U
0.5
1.3
J
5
1 Ul
1
1 0.14
J
1
0.1
J
0.5
1 0.14
J
0.5
0.14
J
0.5
0.14
J
0.5
Sulfate
mg/L
15
5
10.5
5
13.8
1 J
5
1 5
U
1 5
1 10.9
5
5
U
5
10.7
J
10
8.2
J
10
14.4
J
5
5
U
5
11.3
J
5
5.4
5
Total Organic Carbon
mg/L
2.3
1
2
U
1
8.1
1
8,560
100
0.98
J
1
8,950
500
15.8
J
1
13.6
1
1.4
1
80.5
2.1
2.7
1
4.7
1
Total Sulfide
mg/L
0.6
U
1
U
1
U
1
3
U
1
0.6
U
1
32
J
40
U
1
1
EU
1
U
1
1
U
1
U1
1
I 1
U
1
Dissolved Gases
Carbon dioxide
1g/L
100
J
160
U
170
94,000
E
160
530,000
170
3,300
160
310,000
170
U
160
U
170
130,000
E
160
45,000
170
16,000
160
9,400
170
Ethane
µg/L
U
0.5
U
2
11
R
25
5.9
2
9.3
3
6.3
2
0.32
J
0.5
1
J
2
0.39
J
0.5
4.6
2
0.67
0.5
3.1
2
Ethene
µg/L
U
0.5
U
1
8,600
R
25
2.8
1
14 '
3
U
1
1.6
0.5
4.1
1
48
0.5
57
1
2.8
0.5
80
1
Methane
99/L
0.52
0.5
U
1
150
R
25
7,000
1
640
3
12,000
1
17
0.5
230
1
3
0.5
14,000ji
1
429
0.5
3,100
1
Notes:
Q = Qualifier
Detection Limit (DL) - The lowest concentration that can be reliably achieved within specified limits of precision and accuracy during routine laboratory operating conditions.
U = Undetected at or below the detection limit
J = Estimated
UJ = Undetected, detection limit is qualified as estimated
E = Concentration exceeded the instrument's calibration range, concentration reported is estimated
R = The value reported has been rejected due to the laboratory exceeding the method holding time
mg/L = milligrams per liter
µg/L= micrograms per liter
NR = not recorded due to instrument malfunction
1. VOE injection was performed in early August 2005
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarterly\Table 4 41h Quarter 2005.xls

TABLE 4
COMPARISON OF BASELINE AND 120 DAY POST -INJECTION MNA SAMPLING RESULTS
Former Pelton and Crane Facility
Charlotte, North Carolina
LOCATION
Truck Well - 75 to 100' Downgradient of Original Plating Area
Northern Warehouse
WELL
MW-42
MW-43
MW-44
MW-45
TYPE
Shallow Bedrock
Shallow Bedrock
Shallow Bedrock
Shallow Bedrock
DEPTH (ft. bgs).
25-55.3
65-95
65-95.5
65-95
SAMPLE DATE,'
6/l/2005
12/13/2005
6/22/2005
12/13/2005
6/21/2005
12/13/2005
6/21/2005 12/12/2005
PARAMETER UNITS
RESULT DL
RESULT DL
RESULT DL
RESULT Q DL
RESULT Q DL
RESULT Q DL
RESULT DL RESULT Q DL
Field Parameter
pH
6.69
9.09
7.69
10.91
7.49
9.3
8.74
9.5
Specific Conductivity
mS
0.413
0.446
0.371
0.349
0.336
0.369
0.236
0.249
Redox Potential
mV
-420
-129
-519
-172
-386
-120
-372
-124
Temperature
°C
19.8
18.98
21.17
17.41
20.72
18.48
22.65
20.61
Dissolved Oxygen
ppm
0.22
1.03
0.03
1.15
0.28
1.05
0.31
0.87
Turbidity
NTU
91.4
4.01
I97
9.49
NR
4.71
1 932
1
f
22.4
Conventionals
Bicarbonate Alkalinity
mg/L
157
5
179
5
142
5
153
5
U
5
148
5
U
5
105
5
Carbonate Alkalinity
mg/L
U
5
U
5
U
5f123
5
380
5
U
5
270
5
U
5
Chloride
mg/L
16.3
3
13.9
3
14.1
3
ki
3
9
3
13
3
13.8
3
8.2
3
Ferrous Iron
mg/L
0.79
0.2
8.2
1
UJ
0.2
0.2
U
0.2
U
0.2
U
0.2
1.9
0.2
Nitrate
mg/L
0.035
J
0.5
0.2
J
0.5
0.23
J
0.5
0.2
0.5
0.04
J
0.5
0.2
J
0.5
0.052
J
0.5
0.11
J
0.5
Nitrite
mg/L
0.12
J
0.5
0.14
J
0.5
0.14
J
0.5
0.14
J
0.5
0.1
J
0.5
0.14
J
0.5
0.13
J
0.5
U
0.5
Sulfate
mg/L
19.9
J
5
1.9
U
5
18.6
5
9
5
21.3
5
5
15.4
5
1.9
J
5
Total Organic Carbon
mg/L
2.2
1
2.2
U
1
1.3
1
1.9
U
1
1.4
1
nlu
1
1.9
1
1.4
U
1
Total Sulfide
mg/L
U
1
U
1
U
1
1
U
1
0.6
U
1_
1
0.6
U
1
1
U
1
Dissolved Gases
Carbon dioxide
µg/L
100,000
E
160
45,000
170
3,100
1601
12100
170
2,200
160
9,300
170
220
160
26,000
1 00
Ethane
µg/L
530
R
25
4.4
2
14
1.5
7.5
2
5.6
0.5
4.3
2
4.6
0.5
0.56
J
2
Ethene
µg/L
12,000
R
25
2.2
1
37
1.5
1
14
1
6.4
0.5
3.7
1 1
U
0.5
U
1
Methane
µg/L
4,300
R
25
630
1
400
1.5
320
1
32
0.5
120
1
32
0.5-,
10
1
Notes:
Q = Qualifier
Detection Limit (DL) - The lowest concentration that can be reliably achieved within specified limits of precision and accuracy during routine laboratory operating conditions.
U = Undetected at or below the detection limit
J = Estimated
UJ = Undetected, detection limit is qualified as estimated
E = Concentration exceeded the instruments calibration range, concentration reported is estimated
R= The value reported has been rejected due to the laboratory exceeding the method holding time
mg/L = milligrams per liter
µg/L = micrograms per liter
NR = not recorded due to instrument malfunction
1. VOE injection was performed in early August 2005
Page 2 of 2
F:\OFICEAGCTROJECTS\Files\2004-1292\Reports\Quarrerly\Table 4 4th Quarter 2005.xls

TABLE 5
COMPARISON OF BASELINE AND 120 DAY POST -INJECTION VOLATILE SAMPLING RESULTS
Former Pelton and Crane Facility
Charlotte, North Carolina
Page 1 of 2
LOCATION
150' Upgradient of Original Plating Area
Original Plating/Process Line Discharge Break Areas
25' Down Gradient of Injection Wells
50' Down Gradient of Injection Wells
WELL
MW-39
MW-1
MW-40
MW-38
MW-41
MW-18
TYPE
Shallow Bedrock
Shallow Bedrock
Shallow Bedrock
Deep Bedrock
Shallow Bedrock
Shallow Bedrock
DEPTH (ft. bgs)
50-75
25-35
65-95
160-200
25-55
65-85
SAMPLE DATE
6/21/2005
12/12/2005
6/l/2005
12/14/2005
6/22/2005 =
12/14/2005
5/27/2005
12/12/2005
6/l/2005
12/14/2005
5/31/2005
12/13/2005
PARAMETER UNITS
RESULT Q I DL
I RESULT
IDL
RESULT I Q I DL
I RESULT I Q DL
I DL
I RESULT Q DL
RESULT I Q I DL
I RESULT 0 DL
RESULT 10 DL
I RESULT I Q I DL
RESULT I Q I DL
I RESULT I Q I DL
Field Parameter
1,1,1-Trichloroethane
µg/L
U
1
U
1
U
50
U
100
U1
50
U
10
U
201
U
1 10
U
501
U
100
U
20
U
10
1,1,2,2-Tetrachloroethane
µg/L
U
1
U
1
U
50
U
100
U
50
UJ
10
U
20
U
10
U
50
U
100
U
20
U
10
1,1,2-Trichloroethane
µg/L
UJ
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
UJ
20
U
10
11-Dichloroethane
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
1.6
J
10
U
50
U
100
4.8
J
20
3.8
J
10
11-Dichloroethee
µg/L
U
1
U
1
19
J
50
U
100
12
J
`50
U
10
U
20
1.9
J
10
16
J
50
U
100
41
20
3.8
J
10
1,2-Dichloroethane
µg/L
U
1
U
1
U
50
1
U
1 100
U
50`
U
10
U
20
U
10
U
50
U
100
U
20
U
10
1,2-Dichloroethee (total)
µg/L
U
1
U
1
2700
50
4,000
100
1000
50
260
10
130
20
190
J
10
1900
50
650
100
1300
20
650
D
30
1,2-Dichloropropane
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
2-Butanone
µg/L
4.3
J
5
1.8
J
5
R
250
400
J
500
R
250
560
J
50
R
100
R
50
R
250
R
500
R
100
R
50
2-Hexanone
µg/L
UJ
5
U
5
U
250
U
500
UJ
250
U
50
UJ
100
U
50
U
250
U
500
UJ
100
U
50
4-Methyl-2-pentanone
µg/L
UJ
5
U
5
U
250
U
500
U
25.0
5.7
J
50
R
100
U
50
U
250
U
500
R
100
U
50
Acetone
µg/L
65
J
10
39
J
10
76
J
500
430
J
1000
84
J
500
62
J
100
65
J
200
190
J
100
R
500
250
J
1000
R
200
31
J
100
Benzene
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
1.7
J
10
Bromodichloromethane
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Bromoform
µg/L
U
1
UJ
1
UJ
50
U
100
U
50
U
10
U
20
UJ
10
UJ
50
U
100
UJj
20
U
10
Bromomethane
µg/L
U
2
U
2
U
100
U
200
U
100
U
20
U
40
U
20
UJ
100
U
200
U
40
U
20
Carbon disulfide
µg/L
U
1
U
I 1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Carbon tetrachloride
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Chlorobenzene
µg/L
U
1
U
1
U
50
U
100
U.
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Chloroethane
µg/L
U
2
U
2
UJ
100
U
200
U
100
U
20
U
40
U
20
U
100
U
200
U
40
U
1 20
Chloroform
µg/L
0.84
J
1
U
1
U
50
U
100
6.2
J
50
U
10
U
20
U
10
U
50
U
100
Ul
20 1
U
1 10
Chloromethane
µg/L
0.21
J
2
0.17
J
2
UJ
100
U
200
U
100
U
20
Ul
40
U
20
U
100
U
200
Ul
40 1
U
20
cis-1,3-Dichloropropene
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Dibromochloromethane
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Ethylbenzene
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Methylene chloride
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Styrene
µg/L
U
1
U
1
U
50
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Tetrachloroethene
µg/L
U
1
0.11
J
1
U
50
U
100
U
50
U
10
U
20
1.6
J
10
U
50
U
100
U
20
U
10
Toluene
µg/L
0.76
J
1
0.15
J
1
5.4
Jr
U
100
U
50
U
10
4.8
J
20
4.5
J
10
U
50
U
100
U
20
1.2
J
10-
trans- 1,3-Dichloropropene
µg/L
UJ
1
U
1
U
U
100 .
UJ
50
U
10
U
20
U
10
U
50
U
100
UJ
20
U
10
Trichloroethene
µg/L
0.16
J
1
U
1
840
420
100
1500
50-
23
10
400
20
310
J
10
610
50
U
100
670
20
9.8
J
10
Vinyl chloride
µg/L
U
2
U
2
940
360
200
440
100
46
20
50
40
120
J
20
600
100
3,800
200
980
40
680
D
60
Xylenes (total)
µg/L
0.53
J
1
U
1
U
U
100
U
50
U
10
U
20
U
10
U
50
U
100
U
20
U
10
Q = Qualifier
Detection Limit (DL) - The lowest concentration that can be reliably achieved within specified limits of precision and accuracy during routine laboratory operating conditions.
U = Undetected at or below the detection limit.
J = Estimated
UJ = Undetected, detection limit is qualified as estimated
R = The value reported has been rejected due to the laboratory exceeding the method holding times.
pg/L = micrograms per liter
1. VOE injection was performed in early August 2005
F:\OFICEAGOPROJECTS\Files\2oo4-I292Uteports\QoarterlylTable5 4th Quarter 2005.xls

TABLE 5
COMPARISON OF BASELINE AND 120 DAY POST -INJECTION VOLATILE SAMPLING RESULTS
Former Pelton and Crane Facility
Charlotte, North Carolina
LOCATION
Truck Well - 75 to 100' Downgradient of Original Plating Area
Northern Warehouse
WELL
MW42
MW43
MW-44
MW-45
TYPE
Shallow Bedrock
Shallow Bedrock
Shallow Bedrock
Shallow Bedrock
DEPTH (fL bgs)
25-55.3
65-95
65-95.5
65-95
SAMPLE DATE
6/l/2005
12/13/2005
6/22/2005
12/13/2005
6/21/2005
12/13/2005
6/21/2005
12/12/2005
PARAMETER UNITS
RESULT DL
RESULT DL
RESULT DL
RESULT DL
RESULT DL
RESULT DL
RESULT DL
RESULT DL
Field Parameter
1, 1, 1-Trichloroethane
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
1,1,2,2-Tetrachloroethane
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
1,1,2-Trichloroethane
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
1,1-Dichloroethane
µg/L
4
J
20
5.3
J
20
6.3
J
50
U
100
9.9
J
50
11
J
33
5.9
2
9.5
1
1,1-Dichloroethene
µg/L
8.6
J
20
10
J
20
10
J
50
13
J
100
11
J
50
15
J
33
4.4
2
6.4
1
1,2-Dichloroethane
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
1,2-Dichloroethene (total)
µg/L
1000
20
1600
20
920
50
1900
100
770
50
2200
J
33
84
2
110
DJ
2
1,2-Dichloropropane
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
2-Butanone
µg/L
R
100
R
100
R
250
R
500
R
250
R
170
R
10
R
5
2-Hexanone
µg/L
U
100
U
100
UJ
250
U
500
UJ
250
U
170
UJ
10
U
5
4-Methyl-2-pentanone
µg/L
U
100
U
100
U
250
U
500
U
250
U
170
U
10
U
5
Acetone
µg/L
R
200
U
200
85
J
500
290
J
1000
89
J
500
100
J
330
12
U
20
10
R
10
Benzene
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
0.35
J
2
0.39
J
1
Bromodichloromethane
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Bromoform
µg/L
UJ
20
U
20
U
50
U
100
U
50
U
33
U
2
UJ
1
Bromomethane
µg/L
UJ
40
U
40
U
100
U
200
U
100
U
67
U
4
U
2
Carbon disulfide
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Carbon tetrachloride
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Chlorobenzene
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
0.1
J
1
Chloroethane
µg/L
U
40
U
40
U
100
U
200
U
100
U
67
U
4
U
2
Chloroform
µg/L
2.7
J
20
U
20
U
50
U
100
U
50
U
33
0.66
J
2
0.54
J
1
Chloromethane
µg/L
U
40
U
40
U
100
U
200
U
100
U
67
0.45
J
4
U
2
cis-1,3-Dichloropropene
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Dibromochloromethane
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Ethylbenzene
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Methylene chloride
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Styrene
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
1
Tetrachloroethee
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
1.7
J
2
2.7
1
Toluene
µg/L
U
20
U
20
U
50
U
100
U
50
U
33
U
2
U
I
trans-1,3-Dichloropropene
µg/L
U
20
U
20
UJ
50
U
100
UJ
50
U
33
UJ
2
U
1
Trichloroethee
µg/L
410
20
16
J
20
1700
50
710
100
2100
50
950
J
33
35
2
33
J
1
Vinyl chloride
µg/L
340
40
380
40
350
100
320
200
83
J
100
210
J
67
7
4
6.1
J
2
Xylenes (total)
µg/L
U
20
U
1 20
U
50
U
100
U
-501
U
33
U
2
U
1
Notes:
Q = Qualifier
Detection Limit (DL) - The lowest concentration that can be reliably achieved within specified limits of precision and accuracy dining routine laboratory operating conditions.
U = Undetected at or below the detection limit.
J = Estimated
UJ = Undetected, detection limit is qualified as estimated
R = The value reported has been rejected due to the laboratory exceeding the method holding times.
pg/L = micrograms per liter
1. VOE injection was performed in early August 2005
Page 2 of 2
F:\OFICEAGC\PROJECT'S\Files\2004-1292\Reports\Quarlerly\TableS 4th Quarter 2005.xts

FIGURES
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarterly\Fourth Quarterly Report2005,doc

Revision I Description Date I BY
edgef
�• y A }l v�J C4
j 1
INS..'�� - P. r > t ✓
t `c ll;t Bwoex i 1
� `,�1 � k. '''Y�`� � f � if �.tt ���.+//��►—•
Basemap Source:
U.S.G.S. 7.5 minute quadrangles of East and
West Charlotte, North Carolina, dated 1967 and
1993 respectively.
Notes:
1. One —quarter and one—half mile radius FORMER PEL TON & CRANE FACILITY
shown. 200 CLANTON kO AD, CHARL U TTL, NO H 1H CAROLINA
2. Latitude: 35' 11' 45" c11e=1400•
Longitude: 80' 52' 30" Originated
i inat d By. SITE LOCATION MAP
row, By
S.M.F.
Necked By. Advanced GeoServices Corp.
B.B.B. 1055 Andrew Drive, Suite A
roject Mgr. West Chester, Pennsylvania 19380
S.W.K. [phone]
0 1400 wg No. /G. FAX: [phone]
99596-39-03 R.)c Nu
J:\CLANTDN\DRAWINGS\99596-39\99596-39-03 SCALE: FEET 2004-1292-03 FIGURE: 1

Revision
Description
Date T By
I
IW-11S
IW-I
11
1
MW-f8
1
' —1
fit J 18
iw— s
IW-40
W-41
INSERT No. 1
SCALE: 1 "=50'
MW-46
MW-47,0
MW-49
I I '
I I I
I
I I SEE INSERT lo. 1
I ,
i
I
I
I
W11 11
1
1
I
MVjI-24*
1
I ;
1 i ' MW 7
W— 5
1
L�.W_MW-32
jg
MW-12tji�
I 1
I
I I1
I 1
I
1 I 1
I I I
1
1
MW-33 1
W-36 I
I
�I
MW-35
SO UT11
'rRtr0 MW-34
NOTES-
1 L tY
. BASEMAP FROM R.B. PHARR & ASSOCIATES, PA. STREET
BOUNDARY SURVEY FOR 200 CLANTON ROAD,
CHARLOTTE, NC, MAY 18, 1999.
2. LOCATION OF UNDERGROUND UTILITIES ARE NOT SHOWN. 4. PROPERTY BOUNDARIES FOR LOTS ON THE SOUTH SIDE OF CLANTON
ROAD AND NORTH SIDE OF CLANTON ROAD, WEST OF SITE, ARE
3. MONITORING WELL AND INJECTION WELL LOCATIONS SURVEYED BY APPROXIMATE AND ARE BASED ON TAX PARCEL MAPS OBTAINED
R.B.PHARR & ASSOCIATES, PA. HORIZONTAL DATUM WAS NORTH FROM THE MECKLENBURG COUNTY INTERNET GIS SYSTEM.
CAROLINA PLANE COORDINATES, NORTH AMERICAN DATUM (NAD83)
AND THE VERTICAL DATUM WAS NATIONAL VERTICAL GEODETIC 5. OFF —SITE BUILDING LOCATIONS ARE APPROXIMATE.
DATUM (NVGD29).
201— 07 \2004-1201— 07— 29
PELTON STREET
I Ilj
114
I II
IrE
I I IE_
S
—�1
' N
1W AIW 11 IW� I I I�
MW-18 —
IrMW-4o
W-41
—18
II
Do-, _ 2 I
�IMW-43 I I I
— ASPHALT I
W MW PARKING
® Ili
MW-22
I
MW 21A �♦ MW-4
1 MAW-16
/
/
/MW 7p.__,
�MW-14 WIN-2
/
I
I
I
I
9
LEGEND
— — SITE PROPERTY BOUNDARIES
— — — — PROPERTY BOUNDARIES
— - — . — . — EASEMENT BOUNDARY
— — — — — SETBACK BOUNDARY
?VW-28 SHALLOW BEDROCK
MONITORING WELL
♦MW-22
DEEP BEDROCK
MONITORING WELL
OVERBURDEN
*MW-9
MONITORING WELL
*W-1S INJECTION WELL CLUSTER
SAW-29
t
t
3TW-28
W-26
FORMER PELTON & CRANE FACILITY
/ I 200 CLANTON ROAD, CHARLOTTE, NORTH CAROLINA
t
Scale: MONITORING AND INJECTION
1' =100'
riginoted By. WELL LOCATION PLAN
C.P.
Drawn By.
P.S.G.
Checked By.
B.B.B.
Project Mgr:
S.W.K.
0 25 50 100 D2 No.
gg2004-1201—G7-29
SCALE: FEET IdWI( Q 4 2006
0 Advanced GeoServices Corp.
1055 Andrew Drive Suite A
West Chester, Pennsylvania 19380
[phone]
• FAX: [phone]
ject No.
2004-1292-03 FIGURE: 2

PLATE
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarterly\Fourth Quarterly Rq*rt2O05.doc

ATTACHMENT A
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarrerly\Fourrh Quarterly Report2O05.doc

February 17, 2006
(Revised March 1, 2006)
Mr. Robert L. Friedman
Siemens Medical Solutions USA, Inc.
51 Valley Stream Parkway
Malvern, PA 19355
RE: Former Pelton and Crane Facility
REC Program -Indoor Air Sampling
Dear Mr. Friedman:
ADV . CED.
eoSenrices
Engineerrn8 for the Fitduoxmmt P><aming farPmpfe
1055 Andrew Drive, Suite A
West Chester, PA 19380-4293
te1610.840.9100 fax [phone]
www.advancedgeoservices.com
2004-1292-02
This letter provides a summary of the field activities and results regarding the indoor air
sampling activities conducted at the Former Pelton and Crane Facility (Facility) by Advanced
GeoServices Corp. (AGC) during November 2005.
Field Activities
The air sampling was performed overnight while the building was closed to reduce the potential
for sample concentration dilution. The samples were collected using SUMMATm canisters (6-
liter, evacuated, stainless steel spheres equipped with a pre -calibrated 12-hour flow controllers).
Six SUMMATm canisters were set in place inside the Facility after the employees left for the day
(approximately 4:30 p.m. to 5:30 p.m.). The interior canisters were placed 3 to 5 feet above the
floor level. A seventh SUMMATm canister was placed outside the building on the ground
surface near Pelton Street. This location was selected since it is upgradient of the known extent
of VOC-impacted groundwater. Figure 1 shows the air monitoring locations. Below are the air
sample numbers and location descriptions of the seven SUMMATm canisters.
Sample Location
IAS-01-01 1972 Building Expansion
IAS-01-02 Former Second Plating/Cleaning Area
IAS-01-03 Former Paint Room
IAS-01-04 Former Machine Shop
IAS-01-05 Former Fabrication Area
IAS-01-06 Former Original Plating Room
IAS-01-07 Outside the Facility, East side near Pelton Street
The locations were consistent with previous indoor air sampling locations.
F:\OFICEAGC\PROJECTS\Files\20041292\Communications\ll Og Oiairsampling.doc

Mr. Robert L. Friedman
2004-1292-02
February 17, 2006
(Revised March 1, 2006)
Page 2 of 4
AGC returned to the Facility at 5:30 a.m. on November 13, 2005 to turn off and collect the
SUMMAT'm canisters. All SUM1WATm canisters were turned off between 6:00 a.m. and 6:30 a.m.
The ending SUMMATm canister pressure was also documented. The SUMMATM canisters were
relinquished and shipped to Pace Analytical Services, Inc. in Minneapolis, Minnesota for
Volatile Organic Compound (VOC) analysis utilizing EPA Methods TO-14 and TO-15 with
Select Ion Monitoring.
Site Constituents of Concern
The VOC Constituents of Concern (COCs) in soil and/or groundwater associated with the
Facility are as follows:
• Tetrachloroethene (PCE);
• Trichloroethene (TCE);
• 1,2-Dichloroethene (1,2-DCE);
• 1, 1 -Dichloroethene (1,1-DCE);
• Vinyl chloride;
• Bromomethane;
• 1,2-Dichloropropane;
• Chloromethane; and,
• Methylene chloride.
Air Quality Sample Results
The validated air sampling analytical results are included in Attachment A. Table 1 provides a
summary of the results for the aforementioned nine site VOC COCs. Table 2 provides a
summary of the results for the non -site VOCs detected in at least one sample at/or above the
respective laboratory reporting limit (RL).
The REC Implementation Guidance Manual, Appendix DA suggested the most current U.S.
Environmental Protection Agency Subsurface Vapor Intrusion Guidance be used to evaluate
indoor air exposure due to vapor intrusion from impacted soil and groundwater. As such, AGC
developed screening level air concentration values for the site COCs based on the current
industrial use of the Site. Screening values were developed for both a target hazard quotient
(THQ) ' of 1 and target carcinogenic risk (TCR) of 1.0 x 104 (i.e., the upper limit of the
acceptable risk range) for each COC. The lower of the two screening values was used to
compare to the indoor air concentrations measured at the Site. Toxicity values for each COC
were selected based on USEPA developed information in the Integrated Risk Information
System (IRIS) database or Health Effects Assessment Summary Tables (BEAST). The
Pennsylvania Land Recycling Program Technical Guidance Manual was used as a third source
for cis 1,2-DCE since toxicity values were not provided in either IRIS or BEAST for this COC.
Exposure factors were selected from USEPA's Risk Assessment Guidance and based on
F:\OFICEAGCTR07ECTSWilu120041292\Communications\I l 08 05av sampling doe

Mr. Robert L. Friedman
2004-1292-02
February 17, 2006
(Revised March 1, 2006)
Page 3 of 4
industrial land use. Attachment B includes the screening level air concentration calculations. In
addition, the Occupational Safety and Health Administration's (OSHA) Permissible Exposure
Limits (PELs) for general industry based on the current use of the Facility are shown on Tables 1
and 2.
All of the VOC COCs were below the OSHA PELs. All the November 2005 sample results were
below the calculated screening level indoor air concentrations, except one sample (IAS-0304).
This sample was located in the Former Machine Shop, and exceeded the screening level indoor
air concentration for TCE (5.03 ug/m3 vs 4.0 ug/m3).
Twelve non-COC VOCs were detected during this event. All of the VOCs were well below the
PELs. No screening level indoor air concentrations were developed for.these constituents since
they are not Site COCs. Therefore, the OSHA PELs are the appropriate standards to use for
comparison.
Conclusion and Recommendation
All of the air concentration results for the site VOC COCs and non -site VOCs were significantly
below the OSHA PELs. All of the COCs, with one exception, were also below the calculated
screening level indoor air concentration developed using the USEPA's current Subsurface Vapor
Intrusion Guidance.
Three sampling rounds have been completed at the Site (two fall and one winter event). Only
two exceedances of the calculated indoor air screening levels have occurred during these three
events. Each exceedance was at a different location and were both for TCE. Current technical
guidance on indoor air sampling recommends the sampling program be designed to account for
temporal, meteorological and seasonal effects, or to try to simulate a worst -case scenario by
sealing the building for 24 to 48 hours. Ultimately, the best approach is to characterize
variability by conducting multiple sampling events 1.2. AGC believes no remedial action is
necessary at this time due to the marginal and limited exceedance of the screening values.
However, AGC recommends the sampling be repeated in the early spring 2006 to account for
seasonal variability. This next recommended sampling event will complete two data sets two
years apart for the same two seasons.
IU.S. Environmental Protection Agency (USEPA, 2003b), Draft Guidance for Evaluting the Vapor
Intrusion to Indoor Air Pathway from Groundwater and Soils, EPA 530-F-02-052, November 2002.
2Massachusetts Department of Environmental Protection (PADEP 2002), Indoor Air Sampling and
Evaluation Guide, WSC Policy #02-430, April 2002.
\O;
F:\OF[CEAGWROJECTS\Files\2004-1292\Communications\l1-08 05a'u sampling doe

Mr. Robert L. Friedman
2004-1292-02
February 17, 2006
(Revised March 1, 2006)
Page 4 of 4
Please contact Steve Kirschner at 610-840-9117 if you have any questions regarding this data.
Sincerely,
ADVANCED GEOSERVICES CORP.
d- s /17—
Stephen schner, P.E.
Project Consultant
aul G. Stra an, eSM
Senior Project Consultant
SWK:PGS:vm
Enclosures
cc: C. Case
- T. McKittrik
F:\OECEAGC\PROJECTS\Files\20041292\Communications\l l 08 05au samplin&doc

TABLES
F:\OFiCEAGMROJEC7S\Fila\2004-1292\CommuniatiomV l OB 05air wnPlin&dm

TABLE 1
INDOOR AM MONTTORING
SUMMARY OF STTE SPECIFIC COC VOLATILE ORGANIC COMPOUND ANALYTICAL RESULTS
Former Pelton and Crane Site
Charlotte, North Carolina
Sample Location
USEPADraft Subsurface
Vapor Intrusion
Guidance (11-2002)
TCR 10-4, THQ=1
200
4
5.1
90
35
90
136
4
46
OSHA
Permissable
Exposure -
UntieIndoor
(PEL)
NA4
350,000
77,800'
207,000
794,000'
86,750
678,000
537,000
2,560
IAS-01-01
1081127-001
IIIIV03
Air
Result Q RL
U 2 9
U 2.63
U 3
U LS I
1 U 2.9
U 2.68
U 4.96
U 3.39
U 1.97
IAS-02-01
105480818
0329/04
Indoor Air
Result Q RL
U 0.04
U 3.4
U 3.9
0.0987 0.021
0.121 0.04
U 0.11
1.86 0.069
0.546 0.055
0.0961 0.026
IAS-03-01
1023805001
11/18/05
Indoor Air
Result Q RL
0.133 0.037
U 3.1
U 2.6
0.798 0.073
U 0.028
0.219 0.071
2.21 0.24
.1.37 0.023
0.0702 0.018
IAS-01-02
1081127-002
11/12/03
Indoor Air
Result Qr2.49
U
U
U
U .5
U 2.78
U 2.54
U 4.76
U 3.22.
U 1.87
IAS-02-02
105480826
0329/04
Indoor Air
Result Q RL
U 0.028
U 23
U 2.6
0.336 0.015
0.0766 0.028
U 0.071
0.965 0.048
. 0.393 0.037
0.0286 0.018
IAS-03-02
1023805002
11/18/05
Indoor Air
Result Q RL
U 0.039
U 3.4
U 2.8
0.882 0.31
0.169 0.03
0.286 0.074
1.65 0.051
1.42 0.025
0.0252 0.019
IAS-01-03
1081127-003
11/12/03
Indoor Air
Result Q RL
U 2.78
U 2.49
U 2.84
U 1 1.45
U 2.78
U 2.54
U 4.76
U 3.22
U 1.87
LkS-02-03
IOS480834
0329/04
It
Result Q RL
U 0.028
U 2.3
U 2.6
0.462 0.015
0.153 0.028
1.41 0.71
2.72 E 0.048 '
0.71 0.037
U 0.018
IAS-03-03
1023805003
11/18/OS
It Q Air
Result Q RL
U 0.04
U 3.5
U 2.9
0.693 0.016
0.443 0.031
07166 0.078
9.65 0.53
3 0.26
U 0.019
IAS-01-04
1081127-004
11/12/03
Indoor Air
Result Q RL
U 2.78
U 2.49
U 2.84
U 1.45
U 2.78
U 2.54
U 4.76
U 3.22
U 1.87
IAS-02-04
105480842
0329/04
Indoor An
Result Q RL
U 0.028
U 2.3
U 2.6
0.861 D 0.29
0.306 0.028
0.0883 0.071
1.1 0.048
1.15 0.037
U 0.037
IAS-03-04
1023805004
I1/18/OS
Indoor Air
Result Q RI,
U 0.037
U 3.1
U 2.6
0.609 0.015
U 0.028
0.219 0.071
1.65 0.048'
-:•° ;S! � 0.23
U 0..23
Lab ID
Sample Date
Matrix
Parameter
1,1-Dichloroethene
1,2-Dichloropropane
romomethane
Chloromethane
cis-1,2 Dichloroethene
Methylene chloride
Tetracbloroethene
Trichloroethene
Vinyl chloride
Units
µg/m,
99/m3
µ8/m'
µElm
1191m3
991m3
9962
µ8IM
µFA
Sample Location
USEPA Draft Subsurface
•Vapor Intrusion '
Guidance(11-2002)
TCR=10-4, THQ=1
200
4
5.1
90
35
.90
136
4
46
OSHA
Permissable
Exposure
Limle
(PEL)
NA4
350,000
77,80e
207,000
794,0003
86,750
678,000
537,000
2,560
IAS-01-05
1081127-005
11/12/03
Indoor Air
Result Q RL
U 2.86
U 2.58
U 2.92
1.57 1.49 '
U 2.86
U 2.61
U 4.9
U 3.33
U 1.92
IAS-02-05
105480859
0329/04
Indoor Air
Result Q RL
U 0.052
U 4.2
U 4.7
1.28 D 0.27
0.806 0.052
0.191 0.13
1.38 0.09
2.08 0.066
U 0.031
IAS43-05
1023805005
11/19/05
Indoor Air
Result Q RL
U 0.039
U 17
U 15
1.57 0.16
0.685 0.03
0.293 0.074
1.32 0.051
3.11 0.25
0.148 0.019
IAS41-06
1081127-006
11/12/03
Indoor Air
Result Q RL
U 1 2.74
U 2.44
U 2.76
1.47 1.43
U 2.74
3.04 . 2.47
U 4.69
U 3.17
U 1.82
IAS-02-06
105480867
0329/04
Indoor Air
Result Q RL
IT 0.031
U 16
U 2.9
1.3 D 0.31
1.01 D 1 0.6
0.706 0.078
2.76 E 0.053
g�' "'ry 0.82
U 0.019
IAS-03-06
1023805006
11/18/05
Indoor Air
Result Q RL
U 0.037
U 3.1
U 2.6
0.588 0.015
U 1 0.028
0.201 0.071
0.896 0.048
2.51 0.23
U 0.018
iAS-01-07
1081127-007
I IIIV03
Outdoor Air
Result Q RL
U 2.58
U Z35
U 2.64
U 1.41
U 2.58
U 2.37
U 4.41
U 3
U 1.74
IAS42-07
105480875
0329/04
Outdoor Air
Result Q RL
U 1 0.027
U . 2.3
U • 2.6
0.0357 0.014
U 0.027
U 0.071
3.38 D 0.47
0.0546 0.036
1 U 1 0.017
IAS-03-07
1023805007
11/18/05
Outdoor Air
Result Q RL
U 0.034
U 15
U 12
0S46 0.014
U 0.026
0.145 0.067
0.414 0.045
0.0874 0.022
U 0.017
Lab M
Sample Date
Matrix
Parameter
1,1-Dichloroethene
1,2 Dichloropropane
Bromomethane
'hloromethaae
'1,2 Dichloroethene
Methylene chloride
Tetrachloroethwe
Trichioroethene
Vinyl chloride
Units
µ91m3
µ9/m3
µgin3
µg/m3
µg/m3
µg/m3
µ!/m3
µ911n3
µ--
Notes:
4. NA -None available.
5. Ceiling limit, no PEL
U The analyte was not detected at the given reporting limit.
D The value was obtained from a analysis of a diluted sample.
E Concentration exceeded the instrumenfs calibration range and should be considered as estimated The sample should be diluted.
F:IOFICEAGLVR07EC1'S1FilesVOD4-12921CommL6rauons%Table 1 airsamp9n&xls

TABLE 2 •
INDOOR AIR MONITORING
SUMMARY OF NON-COC VOLATILE ORGANIC COMPOUND ANALYTICAL RESULTS
Former Pelton and Crane Site
Charlotte, North Carolina
ziampk Location
OSHA
Permissable
Exposure
Line
(PEL)
NA
35,000
400,000
NA
120,000
120,000
3,247
159.885
240,000s
4,950,000
435,000
435,000
435,000
420,006s
765,995
790,0006
IAS-01-01
1081127-001
11/12/03
Indoor Air
Result Q RL
U 3.55
U 4.12
U 2.91
U 2.43
U 3.54
5 3.6
2.66 2.11
U 3.96
U 3.57
U 3.82
3.75 2.78
4.9 2.52
4.9 .5
U 2.6
t23-'36 2.76
NR
IAS-02-01
105480818
.03/29/04
Indoor Air
Result Q RL
0.388 0.055
0216 0.07
U 0.091
U 0.041
U 4.7
7 4.7
8.77 D 0.65
U 0.064
0.0794 0.05
U 4.9
6.62 3.7
2.5 7.1
7.5 33
80.4 3.6
U 0.04
IAS-03-01
1023805001
11/18/05
Indoor Air
Result Q RL
0.105 0.038
U 0.049
U 0.062
9.99 3.3
0.202 0.029
U 3.3
2.7 0.11
0.512 0.045
0.298 0.035
U 3.4
2.65 0.15
13.7 5.7
4.86 3
U 2.9
62.8 2.6
U 0.028
IAS-01-02
1081127-002
11/12/03
Indoor Air
Result Q RL
U 3.33
U 3.91
U 2.79
U 2.31
U' 3.39
U 3.45
2.11• 1.98
3.78
U 3.42
U 3.62
2.91 2.65
10.15 4.85
3.05 2.38
U 2.47
14.55 2.64
NR
IAS-02:02
105480826.
03/29/04
Indoor Air
Result Q RL
0.311 0.038
U 0.049
U 0.062
U 0.029
U: �3-20.0741
U
4.55 D 0.45
0.0601 0.045
0.0432 0.035
U 3.4
4.15 2.5
15.4 4.9
3.97 2.3
372 2.5 •
HU 0-028
IAS-03-02
1023805002
11/18/05
Indoor Air
Result Q RL
0.183 0.04
U 0.052
U 0.066
9.49 3.6
0.03
5.5 3.6
7.79 0.49
0.831 0.047
1.09 .0.037
U 3.6
4.86 0.66
24.7 6.2
4.86 3.2
U' 3.1
162 14
U 0.03
IAS-01-03
1081127-003
11/12/03
Indoor Air
Result Q RL
U 333
U 3.91
U 2.79
U 2.31
U 3.39
U 3.45
U 1.98
3.78
U 3.42
U 3.62
U 2.65
8.83 4.85
2.47 2.38
U 2.47
9.96 2.64
NR
IAS-02-03
105480834
03/29/04
Indoor Air
Result Q RL
0.322 0.038
0.286 0.049
U 0.062
U 0.029
U 3.2
7.5 3.2
3.15 D 022
0.064 0.045
0 243 0.035
3.47 3.4
6.62 2.5
22.5 4.9
6.18 2.3
53.6 2.5
0.0399 0.028
IAS-03-03
1023805003
11/18/05
Indoor Air
Result Q RL
0.0887 0.042
U 0.054
U 0.066
13.5- 3.7
0.0453 0.032
5.5 3.7
5.52 0.24
0.416. 0.049
3.37 0.38
U 3.7
6.18 0.34
37.1 M6.12.8
10.2
U
456 57
IAS-01-04
1081127-004
11/12/03
Indoor Air
Result Q RL
U 333
U 3.91
U 2.79
U 231
U 339
U 3.45
U 1.98
3.78
U 3.42
3.97 3.62
3.44 2.65
4.85
3.13 2.38
U 2.47
13.02 2.64
IAS-02-04
105480842
03/29/04
Indoor Air
Result Q RL
0.133 0.038
U 0.049
0.0864 0.062
U 0.029
U 3 2
3.45 3.2
422 D 0.45
0.0633 0.045
0.0633 0.035
U 3.4
3 2.5
11.5 4.9
3.05 23
29.1 2.5
IAS-03-04
1023805004
11/18/05
Indoor Air
Result Q RL
8.32 0.38
U 0.049
U 0.062
U 3.3
0.494 0.029
U 3.3
224 0,22
0.448 0.045
.44 00 5
U 3.4
7.06. 0.31
37.1 5.7
7.5 3
U 2.9
774 51
Lab ID
Sample Date
Matrix
Parameter
1,1,1-Trichloroethane
1,1,2,2-Tetrachlomethane
1,1-Dichloroethane
1,2-Dichloroethane
1,3,5-Trimethylbenzene
1,2,4=Trimethylbenzene
Benzene
Carbon tetrachloride
Chloroform
Dichlorodifluoromethane
Units
µg/m3
µg/m?
µg/m3
99112
µg/m3
µgJm3
µg/m3
99hr3
µg/m3
µg/m3
3
µghr
Ethylbenzene
mXy1cneene
µg�3
o-Xylene
µg/m3
Styrene
µg/m3
Toluene•
µg/m3
Mans-1,2-Dichloroethene
µghn3
U
0.031
NR
U
0.028
0.0443
0.028
'ample L.ocauon
ID
1.,a wle Date
OSHA IAS-01-05. IAS-02-05
Permissable 1081127-005 105480859
Exposure I 11/12/M naMoind
IAS-03-05 IAS-01-06 IAS-02-06• IAS-03-06 lAS-01-07 IAS-02-07 IAS-03-07
023805005 1081I27-006 105480867 1023805006 1081127-007 105480875 1023805007
11/18/05 11/12/03 03/29/04
Matrix
Parameter
1,1,1-Trichloroethane
Units
µg%m3
Limie
(PEL)
NA
Indoor
Result
Air
Q
U
RL
3.49
Indoor
Result
0.41
Q
Air
RL
0.067
Indoor
Result
0.887
Q
Air
RL
0.04
Indoor
Result
Air
Q
U
RL
3.33
Indoor
Result
1.39
Q
D
Air
RL
0.83
i1/18/OS
Indoor
Result
0.0832
Q
Air
RL
0.038
ILlLV03
Outdoor
Result
9.43
4.21
Q
U
U
U
U
U
U
U
U
U
U
U
U
U
NR
Air
RL
03/29/04
Outdoor
Result
Q
Air
RL
11
Ou
Result
3.16
3.71
2.59
2.19
3.15
3.2
1.88
3.52
3.18
3.37
2.47
4.85
2.25
2.34
2.45
0.061
1.23
2.68
U
U
U
U
U
D
U
U
U
U
U
U
U
0.037
0.047
0.058
0.028
3.1
3.1
0.21
0.043
0.034
3.3
2.4
4.4
2.2
2.4
0.027
0.0887
0.0407
1.33
0.492
0.109
2.69
132
1,1,2,2-Tetachloroethane
1,1. Dichlomethane
1,2-Dichloroethane
µglms
µg/m3
µg/m3
35,000
400,000
NA
U
U
U
4.05
2.87
2.39
0.174
U
U
0.091
0.11
0.053
U
U
U
0.052
0.066
18
U
U
U
3.84
2.75
2.27
0.148
U
U
0.054
6.066
.0.032
U
U
U
0.049
0.062
3.3
1,3,5-Trimethylbenzene
1,2,4-Trimethylbenzene
Benzene
Carbon tetrachloride
Chloroform
Dichiorodifluoromethane
Ethylbenzene
m+p-Xylene
o-Xylene
Styrene
Toluene
trans-1,2-Dichloroethene
µg/m3
µg/m3
11a
µg/m3
µg/m3
µg/m3
µa
Agin?
µg/m3
99/m3
µg/m3
99IM3
120,000
120,000
3,247
159.88'
240,0004
4,950,000
435,000
435,000
435,000
420,0004
765,995
790,0005
4.45
2.63
5.53
5.3
13.68
4.41
.3.59
18.77
U
U
U
NR
3.49
3.55
2.08
3.90
3.52
3.72
2.74
53
2.47
2.55
2.72
2.96
18.8
0.0887
U
U
D
U
U
U
U
U
U
6.0
6.0
0.39
0.083
0.065
6.0
4.4
8.4
4.1
4.6
0.052
0.0617
5.85
0.556
1.24
1.68
278
0.0484
U
U
U
U
U
0.03
18
0.24
0.047
0.037
19
0.33
33
16
16
14
0.03
4.88
3.53
9.71
3.00
3.03
16.09
U
U
U
U
U
NR
3.34
3.4
1.98
3.71
3.37•
3.52
2.6
4.85
238
2.42
2.6
1.69
0.0588.
7.95
23
U
U
D
U;
U
U
U
U
3.5
3.5.
0.49
0.049
0.038
3.7
2.7
5.3
2.5
2.7
0.031
0.0354
7.47
0.486
0.744
1.06
90.4
U
U
U
U
U
U
0.029
3.3
0.22
0.045
0.035
3.4
0.031
5.7
3.0
2.9
2.6
0.028
s:
-. OSHA General Industry Air Contaminants Standard (29 CFR 1910.1000).
2. PEL criteria for m+p-Xylene and o-Xylene expressed as total Xylenes.
3. NA - None available.
4. Ceiling limit, no PEL
5. PEL criteria expressed as total 1,2-dichloroethene.
U The analyte was not detected at the given reporting limit.
D The value was obtained from an analysis of a diluted sample.
NR The analyte was not reported.
/18105
tdoor Air
Q RL
0.035
U ' 0.045
U 0.058
Ul 15
0.027
U 15
0.1
'0.042
0.032
U 16
0.14
U 27
U 14
U 13
12
1I 0.026
R\0FICEAMPROJECI•Mcs\2004-1292\Communieadons\Table 2 Nov 05Indoor Air Data- NonCOC_s.xls

FIGURE
F:1OFICEAG(,VROlECTS1Fi1a12004-12921Communications\I l OS 05air samplingdoc

PRPrERT{
M.W. LEMMOND I W.D. CORNWELL LLC
DEED 4555-05 DEED 9042-73E
I
5 24' 55' 27" W 341.49'
Kul S 24.
�"9.7T'
Is PELTOINTSTREET
I� (60. F/w) .
1 EASTEPJJ GAG
PDSS"IX .1
12 DE 1.
ICES CORPORATION mI
I DEED ;571-4%.t
lr N
W
L 1
ra O C 4•' ri!•}6�—• un
POWER y
Ono
ZAKSAV
,n PAVED FDPJP_F n.FUMAME
•V SYD.2AGE ApEA � _
W - YIDRA7'dK 3
FT°S7tYr6
1AS-03-0i rIASSLQZ—
ZMp�'1C
stw!a MOORAGE
Vl Af6w k
F POUS/ m
F4FMER �
Ll
CorI�ETE .�
:r t
v Waflm.* r.,r
'
FppOAG Y�vTWt BAG
HWSE fppMER
WASH WATER
FlkMER 441P 61M5. AaD t TREATMENT
NA,.rAJS WASTE
H.J. FRIDELL ST(RADE A4EA SOLOMON SHAP[RO
DEED 6509-344� =+/ - DEED 6575-474
.q� z
ti •N
r
fi
h f,
E.
IJ
N
y'
un
3 .ZC .3bxrnaR
F!
SOUTH TRY01V
S rREET
G.7949 AL.
�
Pr= I I t
-10
osFTrra � I I II
Ila
GT�.a2 I I
Q d�
,S-03-0B .AFTces "�
11
u
AP.EA GUT OF PIW: I
262.634 SG.FT.
rACRhr � � iK I
• �C
ASPHALT
D P
PARKINGPUftAr
I I
I,l
&gw II
sxa I I
MINC l '
.9,Oro%
�£9:btV 3-yt ,rb .£Z•Yir oy •lS .I
awY l,Df- r
FARM $1'ACE
� � I
J.W. HOPIGNS
!/ DEED 5321-430
AAnes�' AOp„yy
D.Pgak.Nl,n '
LEGEND
PROPERTY BOUNDARIES
EASEMENT BOUNDARY
- - - - - SETBACK BOUNDARY
AIR MONITORING LOCATION
n
r
-? NOTES:
�C5 1). BASEMAP FROM R.B. PHARR & ASSOCIATES,
PA. BOUNDARY SURVEY FOR 200 CLANTON ROAD,
CHARLOTTE, NC, MAY 18. 1999.
0
d 2). LOCATION OF UNDERGROUND UTILITIES ARE NOT SHOWN.
11SLS tl9Att91f
[sse•rut
: 1l3i]itM
i s � ncwsr-Tat.o
i
FORMER PELTON & CRANE FACILITY I
200 CLANTON ROAD, CHARLOTT& NORTH CAROLINA
0 25 50 100
-0131
SCALE: FEET

ATTACHMENT A
FAOFICEAGOPROJECrWila\2004-1292\Communiatimu\il OB 05,irsempling.doc

mrowNRIq
ATTACHMENT B
F.\OFICEAGC\PROJECTS\Files\2004-1292\Communiatiom\l l 08 05av sampling.doc

Industrial Scenario Target Indoor Air Concentrations based on USEPA Subsurface VI Guidance (USEPA 2002)
For Carcinogens-
C... (ug/m') = [(TCR*ATc)/(EF*ED*URF)]
For Non -Carcinogens:
,C ..Ka... (ug/m3) (THQ*RfC* 1000 ug/mg)
.where:
Cw as = target indoor air concentrations, carcinogen, (ug/m')
C„...... =target indoor air concentration, non -carcinogen, (ug/m')
TCR = target cancer risk (e.g., 1.Ox10'5)
THQ = target hazard quotient (e.g., 1.0)
URF = unit risk factor (ug/m')"
RIC = reference concentration (mg/m')
At, = averaging time, carcinogens (70 years * 365 days/year = 25,550 days)
EF = exposure frequency (days/year)
ED = exposure duration (years)
INPUT PARAMETERS VALUE
SOURCE
TCR
0.0001
Site -Specific
THQ
1
Site -Specific
URF
Chemical Specific
See Below
RfC
Chemical Specific
See Below
At,
25550
USEPA - RAGS
EF
250
USEPA - RAGS
ED
25
USEPA-RAGS

CHEMICAL
URF
SOURCE
Tetrachloroethene
0.000003
USEPA NCEA provisional value
Trichloroethene
0.00011
USEPA-NCEA provisional value
Methylene Chloride
0.000001
USEPA-NCEA provisional value
l,l-Dichloroethene
NA
NA
1,2-Dichloropropane
0.000019
HEAST
Vinyl chloride
0.0000098
IRIS
Bromomethane
NA
NA
Chloromethane
0.000001
USEPA-NCEA provisional value
cis-1,2-Dichloroethene
NA
NA
CHEMICAL SPECIFIC TARGET INDOOR AIR CONCENTRATION
CHEMICAL
Ccancer
C'non-cancer
Tetrachloroethene
136
NA
Trichloroethene
4
40
Methylene Chloride
409
90
1,1-Dichloroethene .
NA
200
1,2-Dichloropropane
22
4
Vinyl chloride
46
100
Bromomethane
NA
5.1
Chloromethane
409
90
cis-1,2-Dichoroethene
NA
35
RfC
SOURCE
NA
NA
0.04
USEPA-NCEA provisional value
0.09
IRIS
0.2
USEPA NCEA provisional value
0.604
IRIS
0.1
IRIS
0.0051
IRIS
0.09
IRIS
0.035
PA Act 2 State -Wide Health Standard, LRP Tech Manual
As a comparison, the TCE Region 9 PRG for a residential scenario (i.e., TCR = 0.000001; ED = 30; EF = 350) is 0.017 ug/m?.

ATTACHMENT B
F:\OFICEAGC\PROJECTS\Files\2004-1292\Reports\Quarterly\Fourth Quarterly Report2005.doc

REMEDIATING PARTY CERTIFICATION STATEMENT (.0306(b)(2)):
"I certify under penalty of law that I have personally examined and am familiar
with the information contained in this submittal, including any and all documents
accompanying this certification, and that, based on my inquiry of those
individuals immediately responsible for obtaining the information, the material
and information contained herein is, to the best of my knowledge and belief, true,
accurate and complete. I am aware that there are significant penalties for willfully
submitting false, inaccurate or incomplete information."
L
(Name 1 f Remediatin Party Official)
(Signature of Remediating Party Official)
3 z 2cc �
Date
* NOTE. -The RSM certifies all documents LAST. Failure to do so is a
violation of I5A NCAC 13C.0306(b) (2) of the REC Rules and
subject to possible enforcement actionnagainst the RECand/or RSM.
PC 11) ru 4 )ya q t a (Enter State)
l iL.1de,- COUNTY
I, _ffZ i.ssv- A, VaLt!a � , a Notary Public of said County and State, do
hereby certify that Ro be rt L-- {=r R d ^a vi did personally appear and
sign before me this the o? day of i(YM6 f C11
�(migmtum)
Notary bli (OFFICML SEAL)
My commission expires:
NOTARtAL SF------�'•,w
MELM A VAUMNt
!t{
V. 2ipQ
G - 2

REGISTERED SITE MANAGER CERTIFICATION STATEMENT (.0306(b)(1)):
"I certify under penalty of law that I am personally familiar with the information
contained in this submittal, including any and all supporting documents
accompanying this certification, and that the material and information contained
herein is, to the best of my knowledge and belief, true, accurate and complete and
complies with the Inactive Hazardous Sites Response Act G.S. 130A-310, et seq,
and the voluntary remedial action program Rules 15A NCAC 13C .0300. I am
aware that there are significant penalties for willfully submitting false, inaccurate
or incomplete information."
(Name of Registered Sitc'Marfager)
IX
(Signature of Registered Site Manager) Da
* NOTE: The RSM certifies all documents LAST. Failure to do so is a
violation of 15A NCAC 13C.0306(b)(2) of the REC Rules and -
subject to possible enforcement action against the REC and/or RSM.
Ril il-'21 V JI Ok-(Enter State)
COUNTY
a Notary Public of said County and State, do
hereby certify that _- Irl,U� I S- C I l`�}'� Cjt r1 did personally appear and
sign before me this the day of
Notary Public (signature) (OFFICIAL SEAL)
My coNOARW Ptdft
IDU
G - 3