WI0400033_Underground Injection Summary Report_20100719

Underground Injection Summary Report
for 2003 through 2009
Asheboro Sock Facility
515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
Ground Water Incident No. 21340
Site Priority Ranking 60/1)
June 22, 2010
Prepared For.
Kayser -Roth Corporation
Greensboro, North Carolina
Submitted To:
North Carolina Department of Environment and Natural Resources
Division of Water Quality — Aquifer Protection Section
Underground Injection Control Program
Raleigh, North Carolina 27699
Prepared By:
Duncklee & Dunham, P.C.
Cary, North Carolina
DUNCKLEE & DUNHAM, P.C.
RECEIVED / DENR / DWQ
Aquifer Protection Section
' JUL 19 2010

D UNCKLEE
-. - & DUNHAM
June 22, 2010
Mr. Thomas Slusser, L.G.
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Aquifer Protection Section — Underground Injection Control Program
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
ENVIRONMENTAL CONSULTANTS
511 KEISLER DRIVE - SUITE 102
CARY, NORTH CAROLINA 27518
OFFICE: (919) 858 - 9898
W W W. DUNCKLEEDUNHAM.COM
Reference: Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
Ground Water Incident Number 21340
Site Priority Ranking 60/D
Dear Mr. Slusser:
On behalf of Kayser -Roth Corporation (Kayser -Roth), Duncklee & Dunham, P.C. has prepared this
June 22, 2010, Underground Injection Summary Report for 2003 through 2009 for the above -referenced
site. This report presents a summary of current injection activities conducted from 2003 through 2009.
The injection of potassium permanganate is remediating the source area plume to the remediation goals
specified in the Corrective Action Plan. Adjustments to the remedial approach will be needed to deliver
the oxidant throughout the plume.
If there are any questions, please do not hesitate to contact Mr. Dave Duncklee at
dave(a)dunckleedunham.com or [phone], or Mr. Laval Choiniere of Kayser -Roth at
[phone].
Sincerely,
DUNCKLEE & DUNHAM, P. C.
-�, ;
�
B s n D. Trexler Jr. Ph.D.�P.G. R.S.M.
I:Y � >
Senior Hydrogeologist
,_ - ..-�
Id L. Dunc ee, P. R.S.M.
Senior Hydrogeologist
RECEIVED / DENR / DWQ
Aquifer Protection Section
c: Mr. Laval Choiniere — Kayser -Roth Corporation, Greensboro (2) JUL 19 2010
Mr. Kim T. Caulk, P.G. — DENR Inactive Hazardous Sites Branch
Ms. Doris H. Osborne — Adjacent Property Owner
P:\Kayser-Roth\Asheboro-026W\DWQ Phase\UIC Tasks-Proposals\Injection Permit Dmuments\2010\UIC Summary Report-10053.doc
MAILING ADDRESS — POST OFFICE BOX 33366 — RALEIGH, NORTH CAROLINA 27636

Table of Contents
Letter of Transmittal
Table of Contents
I
1 Introduction 1
1.1 Site Background 1
1.2 Corrective Action Plan and Injection Permitting 1
2 Injection Activities and Results 1
2.1 Injection Pilot Tests 1
2.2 Phase III Injection 3
2.3 Water Injection 4
2.3.1 Water Injection Process 4
2.3.2 October 2007 Saprolite Results 4
2.3.3 October 2007 Bedrock Results 6
3 Conclusions and Recommendations 8
3.1 Conclusions 8
3.2 Recommendations 9
4 UIC Documents Produced 9
ID i i

Figures
Fi ure Title
1
USGS Topographic Map
2
Site Plan
3
2003 Direct -Push Injection Locations
4
Snapshots of Saprolite Plume from 2001 to 2005
5
Potassium Permanganate Slurry Injection Locations
6
PCE Plume in Bedrock Unit — Pre Injection March 3, 2005
7
PCE Plume in Bedrock Unit — Post Injection May 23, 2005
8
PCE Plume in Bedrock Unit — Post Injection August 9, 2005
9
PCE Plume in Bedrock Unit — Post Injection December 6, 2005
10
Site Plan with Water Injection Locations — September 24-27, 2007
11
Saprolite Unit Ground Water Contour Map — October 2007
12
Bedrock Unit Ground Water Contour Map — October 2007
13
PCE Plume in Saprolite Unit — October 2007
14
PCE Plume in Bedrock Unit — October 2007
15
PCE Plume in Cross Section B-B'- October 2007
Tables
Table
Title
1 Historical Analytical Data
Appendices
Appendix Title
A Historical Water Levels
B Historical Inorganic Parameters
C Historical Field Parameters
iii

Underground Injection Summary Report
for 2003 through 2009
Asheboro Sock Facility
515 West Balfour Avenue
Asheboro, North Carolina
I1 Introduction
1.1 Site Background
` The Kayser -Roth Corporation (Kayser -Roth) Asheboro plant facility ("the site") is located at 515 West
Balfour Avenue in Asheboro, North Carolina (see Figure 1). The plant currently manufactures socks and
the property contains one main plant building and several smaller outbuildings located to the south and
southeast of the main plant (see Figure 2). In 1999, environmental site assessment activities detected
several chlorinated volatile organic compounds (VOCs) in ground water at concentrations exceeding
North Carolina 2L ground water standards. The primary ground water constituent detected. is
tetrachloroethene (PCE).
1.2 - Corrective Action Plan and Injection Permitting
In 2001, Duncklee & Dunham, P.C. (Duncklee & Dunham) continued site assessment activities and
_prepared a Corrective Action Plan (CAP) to address ground water remediation. The CAP, submitted to
the North Carolina Department of Environment and Natural Resources (DENR) in 2002, outlined a plan
to address the dissolved PCE plume through in -situ chemical oxidation (ISCO) via injection of potassium
permanganate.
An injection pilot test was proposed in the CAP to determine the most practical and cost-effective method
of oxidant delivery and to estimate overall ground water treatment time. Duncklee & Dunham submitted
an Application for Permit to Construct andlor Use a Class SI Injection Well to the DENR, Division of
Water Quality (DWQ), Aquifer Protection Section (APS)-Underground Injection.Control (UIC) Program
in late October 2002. An injection permit, WI0400033, was issued to Kayser -Roth by DWQ on
January 7, 2003. Duncklee & Dunham requested an amendment to the injection permit in a
correspondence" dated September 27, 2004, which included injection data results current through 2004.
DWQ amended the permit in early 2005 to allow the injection of permanganate slurry in the suspected
source area. The injection permit was renewed and approved without modification on August 1, 2007.
2 Injection Activities and Results
2.1 Injection Pilot Tests
Phase I injection pilot test activities were performed on July 14-16, 2003. Approximately 2,600 gallons
of 1 to 1.5 percent potassium permanganate solution (permanganate solution) was injected into saprolite
well MW-IOc, bedrock well DW-1, and five direct -push injection points (IB-1 through IB-5) advanced to
depths ranging from approximately 24 to 40 feet below land surface (ft bls) along the south fence line
(see Figure 3).
]� DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22; 2010
Page 2 of 10
Phase II injection pilot test activities were performed from September 16-19 and 22-25, 2003.
Approximately 20,000 gallons of 2.5 to 3 percent permanganate solution was again injected into wells
MW-10c and DW-1 along with seven additional direct push injection points (IB-6 through IB-12)
advanced to depths ranging from 28 to 38 ft bls along and south of the fence line in the vicinity of the
lithologic contact zone identified during the CAP development activities (see Figure 3).
Ground water levels were collected from the monitoring wells (see Appendix A Water Levels) and water
samples collected and analyzed for VOCs according to SW-846 Method 826.0. As part of the post -
injection monitoring, samples from saprolite wells MW-1, MW-3, MW-6b, MW-8, MW-10b, MW-12,
MW-17, MW-21, and bedrock wells DW-2 and DW-3 were also analyzed in the laboratory for
manganese and chromium according to Method 200.7 and for chloride according to Method 325.2 (see
-- Appendix B). Field measurements included pH, specific conductance, oxidation reduction potential
(ORP), dissolved oxygen (DO), and temperature (°C) were also collected (see Appendix Q.
Pre and post -treatment monitoring was performed on wells MW-1, MW-3, MW-6b, MW-8, MW-10b,
MW-12, MW-17, MW-21, DW-2 and DW-3 as outlined in the CAP and in the injection permit
application. Significant reductions in PCE concentrations were noted immediately after the first injection
event in MW-8 and MW-10b and immediately after the second event in MW-17 (see Figure 4).
A semiannual ground water monitoring event was performed on May 24-28, 2004. Ground water levels
and samples were collected from all monitoring wells except saprolite wells MW-2b, MW-9, MW-14
through MW-16, MW-18 and MW-19 (see Appendix A Water Levels). Well MW-2b remained
inaccessible, and off -site wells MW 9, MW-14 through MW-16, MW-18 and MW-19 were dry.
The 2004 shape and extent of the PCE plume in the saprolite unit wells is generally similar to that
detected in late 2001 (see Figure 4). The May 2004 semiannual sampling results indicate that the PCE
concentration in well MW-10b rebounded since the previous sampling event in November 2003 and was
slightly above levels detected in early to mid-2001. The PCE concentration in well MW-3 had decreased
since the previous sampling event in November 2003, but it remained above late 2001 levels. The PCE
concentration in well MW-17 had decreased significantly since the November 2003 sampling event and
showed a notable decrease compared to late 2001 levels. Well MW-8 also showed a decreased PCE
concentration compared to both the previous sampling event and late 2001 levels.
Bedrock wells DW-1 and DW-2 showed increased PCE concentrations compared to previous reductions
caused by Phase I and II injections as evidenced in the November 2003 and late 2001 results (see
Table 1). PCE levels in DW-3 remained stable and well DW-5 showed only trace levels of impact.
Bedrock well DW-4 showed no PCE contamination.
After a period of about six months subsequent to the Phase II injection, VOC concentrations in saprolite
wells near the source area rebounded to pre -injection levels (see Figure 4 and Table 1). Aquifer
recontamination in the shallow aquifer zone was attributed to dissolution of residual contaminants
remaining in the source area. The 1 to 3 percent permanganate solutions, while highly effective in the
dissolved VOC area of the ground water plume, was not able to overcome the residual VOC levels in the
source area.
DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22; 2010
Page 3 of 10
2.2 Phase III Injection
Phase III injection was conducted on March 15-17, 2005, and involved injection of a more concentrated
potassium permanganate slurry into the source area. The Phase III injection plan consisted of the
placement of 30 to 35 percent potassium permanganate slurry in the vicinity of MW-1Ob using 11 direct -
push injection points (see Figure 5). Approximately 330 pounds of potassium permanganate along
with 100 gallons of water was injected in each point along and south of the fence line in the vicinity of
g J P g tY
MW-10b and along the lithologic contact zone previously identified in this area (i.e., the same area where
the Phase I and II injection borings were completed).
Pre injection ground water monitoring was performed on March 9-10, 2005, followed by post injection
events on May 23-26, August 9-10, and December 6-7, 2005. Ten wells were sampled to evaluate the
effectiveness of the injection activities. Ground water samples were collected from MW-1, MW-3,
MW-8, MW-10b, MW-11, MW-17, MW-21, DW-1, DW-2 and DW-3.
CAP semiannual sampling events were performed during May 23-26 and December 6-7, 2005. Samples
were collected from all of the wells except for MW-2b, inaccessible, and off -site wells MW-14 through
MW-16, and MW-18 which are dry. MW-9 and MW-19 were dry during the December sampling event.
PCE was the primary plume constituent in both the saprolite (MW) and bedrock (DW)- wells (see
Table 1). Prior to Phase III injection activities PCE was detected in saprolite wells MW-3, MW-8,
MW-10b, MW-17, and MW-21. Monitoring wells MW-10b and MW-17 showed the greatest impact
from the PCE.
Sampling subsequent to the Phase III injection event showed a decrease in PCE concentration in MW-IOb
and MW-17, while saprolite wells MW-6, MW-8, MW-13, and MW-21 remained relatively unchanged.
Six months after injection the PCE concentration in MW-10b continued to be below laboratory detection
limits (BDL) while MW-17 also showed.a significant drop in PCE concentration.
Visual observations of the ground water during well purging activities indicated the presence of
permanganate (purple color) in two wells. Well MW-IOb well water has exhibited a purple color during
each post -Phase III injection event. Well MW-17 for the first time (post -Phase III injection) showed a
slight purple tint during the December 2005 sampling event.
Trichloroethene (TCE) was detected in saprolite wells MW-3, MW-10b, and MW-17 prior to Phase III
injection. After Phase III injection, TCE in MW-10b and NW-17 was BDL while MW-3 showed a small
increase. No other VOCs were detected in the saprolite unit wells.
Chloroform, PCE, and TCE prior to Phase III injection and after injection remained relatively unchanged
in the bedrock wells. PCE was detected at concentrations of 400 micrograms per liter (ug/L) in DW-I.
TCE was detected at 27 ,ug/L in DW-3. Trace levels of chloroform were detected in all bedrock wells,
with the exception of DW-1.
The PCE data collected in the bedrock unit wells prior to Phase III injection activities and the follow up
sampling have been contoured in plan view (see Figures 6, 7, 8, and 9).
r__ DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22, 2010
Page 4 of 10
ORP readings, pH readings, and electrical conductivity continue to be stable with minor fluctuations, and
no discernible trends (see Appendix Q. Well MW-10b was not measured for any field parameters
because of the visible presence of permanganate in the well water. DO continue to be stable in the
monitoring wells.
Dissolved manganese prior to and post Phase III injection appears to be unchanged with the exception of
MW-10b and possibly MW-17. Manganese in MW-10b since Phase III injection has increased
significantly and remains higher than pre Phase III injection levels. The levels of chromium and chlorides
have remained relatively unchanged in the monitoring wells (see Appendix B).
Field. and analytical data obtained during ground water sampling subsequent to the Phase III injection
event showed evidence that potassium permanganate had reached a,static state over time within the
original injection zone. Therefore, a plan was developed to inject water into the shallow aquifer and
suspected source area to better distribute the potassium permanganate slurry and improve oxidant contact
with the contaminants.
2.3 Water Injection and Results
2.3.1 - Water Injection Process
In February 2007, Duncklee & Dunham requested that the injection permit be renewed to facilitate water
injection in to the aquifer. The purpose of the injection was to improve distribution and contact of
residual potassium permanganate with the aquifer by moving the slurry farther away from the injection
zone. The DENR approved the injection permit renewal as documented in a letter dated August 1, 2007.
Subsequently, on September 24-28, 2007, water was injected into boreholes within the source area near
the Phase III injection wells.
The Phase IV water injection was performed by Geologic Exploration of Statesville, North Carolina at
nine soil boring points (Pt-1 to Pt-3 and Pt-5 to Pt-10, see Figure 10). Each point was advanced with a
direct push rig using two inch rods. Borings were advanced to approximately 30 ft bls (ft bls), with the
exception of Pt-3 and Pt-8 which were advanced to refusal at 22 ft bls and 28 ft b1s, respectively.
During the Phase IV injection event, water was injected into the potassium permanganate slurry in the
shallow saprolite portion of the aquifer. City of Asheboro municipal water was injected into the injection
points described above at pressures ranging from approximately 150 to 200 pounds per square inch (psi)
at a rate of four to ten gallons per minute (gpm). Approximately 5,969 gallons of water was injected in to
the shallow saprolite aquifer unit.
2.3.2 October 2007 Saprolite Results
Following the water injection, the CAP semiannual ground water monitoring was performed on October 8
and 9, 2007. This was the sixth monitoring event performed following -the Phase III injection event.
Physical and geochemical parameters were collected from saprolite monitoring wells MW-1, MW-3,
MW-6b, MW-8, MW-13, MW-17, MW-20, MW-21, MW-22, and bedrock wells DW-1 through DW-5.
Additionally, monitoring well MW-11 was sampled during this event. Monitoring wells MW-7, MW-1Ob
MW-14, MW-15, MW-16 and MW-18 were dry.
DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22, 2010
Page 5 of 10
Figure 11 shows the saprolite unit ground water contours and Figure 12 shows the bedrock unit ground
water contours. The October 2007 flow directions are similar to past. events.
During the ground water sampling process, field geochemical parameters were collected from select
monitoring wells. Additionally, a field colorimeter instrument was used during the recent sampling event
to evaluate potassium permanganate concentrations in select wells. This field data are summarized in
Appendices B and C.
PCE remains the primary ground water constituent present in saprolite and bedrock aquifer unit wells (see
Table 1). Recent PCE results found in the saprolite and bedrock aquifer unit wells collected during the
October 2007 semiannual sampling event have been contoured and shown in cross section and plan view
on Figures 13, 14, and 15.
During this event, VOCs were detected at various concentrations in MW-3, MW-6b, MW-8, MW-13,
MW-17, and MW-21. A summary of historical and recent data results are shown in Table 1. Water
levels, inorganic analysis, and field parameter data from this event are summarized on Appendices A, B,
and C, respectively. Based on this data, the following observations are made:
• Monitoring wells MW-1, MW-6b, MW-11, MW-20, and MW-22 continue to show PCE BDL.
• The highest concentration of PCE occurred in MW-17 at 2,350 µg/L. The remaining saprolite
wells showed detectable PCE concentrations above the 2L ground water standards at levels
ranging from 14.7 µg/L in MW-13 to 456 µg/L in MW-3.
• Additionally, analytical data showed degradation compound TCE present in select saprolite wells.
TCE was detected above the 2L ground water standard in MW-3 at a concentration of 9.0 µg/L.
Chloroform, which historically has been detected in several wells continues to be detected at low
levels in several wells but not above the 2L standard. No other target VOCs were detected above
the laboratory detection limit or 2L standards.
• Among the saprolite wells, MW-10b,MW-8'and MW-17 are used in evaluating the effectiveness
of injection activities. An analysis of historical data in these wells shows a good correlation
between the byproducts of the oxidation process and PCE concentrations. Trends show that as
manganese and chlorides increase in concentration, PCE decreases. October 2007 data collected
in MW-8 shows an increase in chlorides and manganese while PCE decreased.
Chloride, manganese, and chromium are byproducts of the oxidation process, and are used to evaluate
PCE degradation and as a tracer to evaluate the distribution and impact of the oxidant to the aquifer.
These results are summarized on Appendix B and the following observations can be made at this time:
• Manganese levels remained elevated in saprolite wells closest to the injection zone. Data
collected in wells MW-8 (0.905 mg/L) and MW-17 (0.818 mg/L) showed manganese at
concentrations slightly higher than peripheral wells MW-6b (0.173 mg/L) and MW-13 (0.161
mg/L). Downgradient wells MW-21 (0.0549 mg/L) and MW-3 (<0.005 mg/L) contained
manganese at levels much lower in comparison to wells adjacent to the injection zone.
DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22, 2010
Page 6 of 10
Chloride concentrations continue to be elevated in source area well MW-8 at concentrations
of 465 mg/L. Subsequently, chloride levels from the remaining saprolite wells ranged from
5 mg/L in MW-13 to 92.6 mg/L to in MW-6b.
• Chromium levels showed a similar pattern to manganese levels. Data collected from saprolite
wells closest to the injection zone showed chromium slightly higher than wells located on the
periphery or hydraulically downgradient. MW-8 and MW-17 contained chromium at 0.0073
mg/L and 0.0162 mg/L, respectively. Peripheral wells MW-6b and NM-13, and downgradient
wells MW-21 and MW-3, showed chromium level below laboratory detection limits.
Field parameters collected during the October 2007 sampling event are presented in Appendix C.
Additionally, a colorimeter was used to measure the concentration of potassium permanganate in
impacted wells (see Appendix B). Based on the data collected, the following observations can be made.
• Based on the colorimeter data, detectable levels of permanganate were present in monitoring
wells MW-8, MW-3, MW-13, and MW-17. MW-8 exhibited the highest concentration with a
colorimeter reading of 1.4 mg/L. Historically, MW-10b has showed the highest concentrations of
permanganate. However, during the October 2007 sampling event, MW-10b was dry and could
not be sampled or any other analysis performed.
• ORP data collected indicate increasing trends in wells closest to the injection zone following the
water injection event. Among the saprolite unit wells, MW-8 showed the highest ORP reading
at 604 mV (millivolts) while elevated ORP results were also noted in MW-6b (327 mV) and
j MW-17 (419 mV). Data collected in the remaining saprolite wells showed ORP readings ranging
from 271 mV (MW-13) to 279 mV (MW-21).
2.3.3 October 2007 Bedrock Results
During the October 2007 sampling event, PCE was the primary ground water constituent detected in the
bedrock wells DW-1, DW-2, DW-3, DW-4 and DW-5 (see Table 1). Based on this most recent sampling
event for the bedrock wells, the following observations were made:
• Analytical results show PCE continues to be present above 2L ground water standards. DW-2
continues to show the greatest impact of PCE at a concentration of 883 µg/L. In the remaining
bedrock wells, PCE ranged from 729 µg/L (DW-1) to 1.1 µg/L (DW-4). -
Based on pre -injection and post injection PCE data trends, PCE appears to increase slightly in
the bedrock wells following the injection work phases (see Table 1). The post water injection
data results also show TCE and chloroform present in the bedrock wells at low to trace levels.
TCE ranged from 39.3 µg/L (DW-4) to 4.0 µg/L (DW-5), while chloroform ranged from 33.3
µg/L (DW-4) to 9.0 µg/L (DW-1). No other target VOCs were detected above the laboratory
detection limits in the bedrock wells.
DUNCKLEE & DUNHAM, P.C.

1,
Underground Injection Summary P g Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22, 2010
Page 7 of 10
• Among the bedrock wells, key wells (DW-1 and DW-2) are used in evaluating the effectiveness
of injection activities. An analysis of historical data in these wells shows a good correlation
between the byproducts of the oxidation process and PCE concentrations. As manganese and
chlorides increase in concentrations, PCE decreases. Manganese concentrations remain
relatively low. The chlorides and PCE concentrations appear to be in an increasing trend.
As stated earlier, chloride, manganese, and chromium are typical byproducts of the oxidation process to
evaluate PCE degradation and are used as a tracer to evaluate the distribution and impact of the oxidant to
the aquifer. These data results for the bedrock wells are also summarized on Table 4 and the following
observations can be made at this time:
• Manganese levels remained elevated in DW-1 (0.379 mg/L) and DW-4 (0.436 mg/L) at
concentrations at or just below data results obtained during the pre -water injection monitoring
event that occurred in April 2007. The remaining wells revealed no substantive increase or
decrease in data trends when compared to the pre -water injection and the October results.
• Among the bedrock wells, chloride concentrations are higher in downgradient wells compared to
wells closer to the source area. DW-I and DW-4 contain chlorides at concentrations 23.2 mg/L
and 27.6 mg/L. However, downgradient wells DW-2, DW-3, and DW-5 contain chlorides at
concentrations 120 mg/L, 70.6 mg/L and 42.3 mg/L, respectively.
• Analytical data collected in the bedrock wells showed chromium levels decreased slightly in
comparison to the April 2007 sampling event. The highest chromium levels were detected in
wells closest to the injection zone. DW-1 and DW-4 contained chromium at concentrations
0.0094 mg/L and 0.0072 mg/L while downgradient bedrock well DW-2 contained chromium at
0.0063 mg/L. Data collected in peripheral bedrock wells DW-3 and DW-5 showed chromium
below the laboratory detection limit of 0.005 mg/L.
Field parameters collected in the bedrock wells during the October 2007 sampling event are presented in
Appendix C. Additionally, a colorimeter was used to evaluate during the recent sampling period to
ascertain the relative concentration of potassium permanganate in impacted wells. Based on the data
collected, the following observations can be made.
• Based on the colorimeter data, detectable levels of potassium permanganate were present in three
of the five bedrock wells. Upgradient well DW-4 (0.98 mg/L) showed the highest concentration
of permanganate while downgradient well DW-3 (0.20 mg/L) showed the lowest concentration of
permanganate.
• Data collected in the bedrock wells continue to show aerobic conditions. DO levels ranged from
5.75 mg/L in DW-5 to 6.77 mg/L in DW-1.
• Based on previous ORP and conductivity readings, no discernable trends can be seen at this time.
DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
-_J Asheboro, Randolph County, North Carolina
June 22, 2010
Page 8 of 10
Conclusions and Recommendations
3.1 Conclusions
Based on the 2003 to 2007 injection events and the ground water monitoring results, the following
conclusions are presented.
• Injection of 1 to 2.5 percent permanganate solution occurred in July and September 2003, a 30 to
35 percent permanganate slurry was injected in March 2005, and water to stir and reactivate the
permanganate slurry was injected in September 2007.
• The permanganate solution and slurry is effective in treating the PCE and TCE and reduced a
large mass of PCE.
• Analytical data showed one biodegradation compound, TCE, present in the saprolite wells.
The highest concentration of PCE based on the last sampling event (October 2007) occurred in
saprolite well MW-17 at 2,350 µg/L. The water injection event appears to have had a short-term
impact in this well and additional activation of the permanganate slurry is needed.
The October 2007 128 µg/L for PCE in saprolite well MW-8 is the lowest concentration detected
in this well in two and a half years. Ground water in this well exhibited the highest colorimeter
reading of dissolved permanganate of the wells sampled. Chlorides and manganese have
increased as PCE has decreased. This shallow well is adjacent to and hydraulically downgradient
of the slurry injection and water injection area. The water injection event appears to have had a
short term impact in this well and additional data is needed to evaluate the long term effects.
Field indicator parameters measured in key shallow saprolite wells suggest VOCs may be
degrading aerobically (cometabolism) due to the high DO and via enhanced degradation resulting
from the potassium permanganate injections as noted by the high ORP values. Based on the
historical data collected at the site, Duncklee & Dunham does not believe this ground water
system is capable of shifting to an anaerobic state.
In the bedrock wells, based on pre -injection and post- injection PCE data trends, PCE has
increased slightly following the injection work phases. This can possibly be explained by the
formation of PCE concentration gradients in the aquifer as a result of the permanganate injection.
The water injection is believed to mobilize the PCE to a certain extent at depth as it comes in
contact with the permanganate slurry. However, future monitoring events should reveal if PCE
degradation is occurring or additional source is impacting ground water.
The post injection data results indicated TCE and chloroform were present in the bedrock wells at
low to trace levels. TCE ranged from 39.3 µg/L (DW-4) to 4.0 µg/L (DW-5), while chloroform
ranged from 33.3 µg/L (DW-4) to 9.0 µg/L (DW-1). No other target VOCs were detected above
the laboratory detection limits in the bedrock wells.
Bedrock wells DW-1 and DW-4, used to evaluate the injection process in and adjacent to the
source area, indicate PCE levels are slow to degrade. However, residual impacts of the potassium
permanganate oxidation process .are present in the deep wells as evidenced by increased
magnesium concentrations.
DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22, 2010
Page 9 of 10
• It is believed that the chloride concentrations measured in the monitoring wells are a direct result
of the dechlorination of both PCE and TCE. In wells closest to the source area, TCE and
chlorides were detected at similar concentrations. However, the downgradient wells show a
proportionately higher concentration of chloride than TCE. It is believed this phenomenon. is
possible due to the distance and time traveled thereby allowing enough time to for the breakdown
of TCE to add to the amount of chlorides produced by the PCE oxidation processes.
3.2 Recommendations
Based on the 2003 to 2007 injection events and the ground water monitoring results, the following
recommendations are made.
• It is recommended that the potassium permanganate continue to be used as the injectate for the
remediation of the PCE and TCE compounds in the saprolite and bedrock plumes.
• A sampling event of the saprolite and bedrock wells should be conducted to continue the
evaluation of the effectiveness of the remediation since the October 2007 sampling event.
• Another water injection, or similar type event, should be considered in the area where the
permanganate slurry was injected and possibly southward along the fenceline. Consideration for
injection again in DW-I should also be reviewed..
• A sampling event of the select saprolite and bedrock wells should be conducted several months
after any additional injection event to continue the evaluation of the effectiveness of the
remediation.
• In the future, the bedrock unit needs permanganate injected directly into the plume and a
sampling event conducted several months later to evaluate the effective of the injection event.
4 UIC Documents Produced
The following list of documents has been provided to the Underground Injection Control Program in the
past and these documents were used to prepare this summary document.
Duncklee & Dunham, P.C., 2002, Application for Permit to Construct andlor Use a Well(s) for Injection,
Class 51 Wells, 515 W Balfour Avenue, Asheboro, Randolph County, North Carolina,
Groundwater Incident Number 21340, Site Priority Ranking 60ID: Prepared for Kayser -Roth
Corporation and Submitted to NC Department of Environment and Natural Resources, Division
of Water Quality, Underground Injection Control Program, Raleigh, August 26.
Duncklee & Dunham, P.C., 2004, Semiannual Ground Water Monitoring Report, Asheboro Sock Facility,
SI S W Balfour Avenue, Asheboro, Randolph County, North Carolina, Groundwater Incident
Number 21340, Site Priority Ranking 60ID: Prepared for Kayser -Roth Corporation and Submitted
to NC Department of Environment and Natural Resources, Division of Water Quality,
P Q tY
Groundwater Section, Winston-Salem, March 9.
i
DUNCKLEE & DUNHAM, P.C.

Underground Injection Summary Report for 2003 through 2009
Asheboro Sock Facility, 515 West Balfour Avenue
Asheboro, Randolph County, North Carolina
June 22, 2010
Page 10 of 10
Duncklee & Dunham, P.C., 2004, Injection Pilot Study Status Report and Permit Amendment Request,
Asheboro Sock Facility, 515 W. Balfour Avenue, Asheboro, Randolph County, North Carolina:
Prepared for Kayser -Roth Corporation and Submitted to Department of Environment and Natural
Resources, Division of Water Quality, Aquifer Protection Section, Raleigh, September 27.
Duncklee & Dunham, P.C., 2004, Semiannual Ground Water Monitoring Report, Asheboro Sock Facility,
515 W. Balfour Avenue, Asheboro, Randolph County, North Carolina, Groundwater Incident
Number 21340, Site Priority Ranking 60ID: Prepared for Kayser -Roth Corporation and Submitted
to NC Department of Environment and Natural Resources,, Division of Water Quality,
Groundwater Section, Winston-Salem, October 15.
Duncklee & Dunham, P.C., 2004, Semiannual Ground Water Monitoring Report, Asheboro Sock Facility,
515 W. Balfour Avenue, Asheboro, Randolph County, North Carolina, Groundwater Incident
Number 21340, Site Priority Ranking 60ID: Prepared for Kayser -Roth Corporation and Submitted
to NC Department of Environment and Natural Resources, Division of Water Quality,
Groundwater Section, Winston-Salem, November 10.
Duncklee & Dunham, P.C., 2006, Semiannual Ground Water Monitoring Report, Asheboro Sock Facility,
515 W. Balfour Avenue, Asheboro, Randolph County, North Carolina, Groundwater Incident
Number 21340, Site Priority Ranking 60ID: Prepared for Kayser -Roth Corporation and Submitted
to NC Department of Environment and Natural Resources, Division of Water Quality, Aquifer
Protection Section, Winston-Salem, February 24.
Duncklee & Dunham, P.C., 2007, Semiannual Monitoring and Injection Report, Asheboro Sock Facility,
515 W. Balfour Avenue, Asheboro, Randolph County, North Carolina, Groundwater Incident
Number 21340, Site.Priority Ranking 60ID: Prepared for Kayser -Roth Corporation and Submitted
to NC Department of Environment and Natural Resources, Division of Waste Management,
Superfund Section, Winston-Salem, May 31.
Duncklee & Dunham, P.C., 2007, Application for Permit to Construct and/or Use a Well(s) for Injection,
Class 51 Wells, 515 W. Balfour Avenue, Asheboro, Randolph County, North Carolina,
Groundwater Incident Number 21340, Site Priority Ranking 60ID: Prepared for Kayser -Roth
Corporation and Submitted to NC Department of Environment and Natural Resources, Division
of Water Quality, Underground Injection Control Program, Raleigh, February 6.
Duncklee & Dunham, P.C., 2008, October 2007 Semiannual Ground Water Monitoring and Injection
Evaluation Report, Asheboro Sock Facility, 515 W. Balfour Avenue, Asheboro, Randolph County,
_ North Carolina, Groundwater Incident Number 21340, Site Priority Ranking 60ID: Prepared for
Kayser -Roth Corporation and Submitted to Department of Environment and Natural Resources,
Division of Waste , Mana ementSu erfund Section, Inactive Hazardous Sites Branch, Winston-
Salem, March 14.
pj DUNCKLEE & DUNHAM, P.C.

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Source Map: U.S. G.S. Asheboro 7.5-Minute Quadrangle.
DUNCKLEE & DUNHAM, P.C. Approximate Scale: Title:
ENVIRONMENTAL CONSULTANTS I" = 2000' USGS Topographic Map
511 KEISLER DRIVE - SUITE 102 Figure: Project:
CARY, NORTH CAROLINA 27518 Asheboro Sock Facility
1 Asheboro, North Carolina

Wooded .Area
M\\'-22 &
9
DUNCKLEE °"I��o ,1 F`°" N; o?
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® b1W-12
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02600-1 2 As Shown
Water
1V1Vc�-11 Towers it e
Estimated Impacted "0
Site Plan
Source Area MW-4
O ' ASTs Project Kayser Roth Facility
Asheboro, North Carolina
Brick DW -4
Residential �''-13 �: ' �'-106
Home
Q Legend
MW-17 0 Property Line
X Fence Line
Main
Pump Plant
/House Building MW-16 Saprolite Unit Well
Brick
MW-14
Garage MVO' 18 -19 N V-3 NnV-2b DW-3 Bedrock Unit Well
Electrical Substation B B' Cross Section Line
DW-1
Mobile Boiler
Homes ®DW-2 House
b1\k'-20 NI\ '-1 S DW-3
M\V-1
DW-5
Trailer Park
ip
M\1'-19
16
Parking
" �'-� ---- Fence Lot
Bun-"" Road (SR 1500
Scale
90 45 0 90 180
1 "=90'

MW-P Duncklee & Dunham, P.C.
Environmental Consultants
® MW 12 Author Drawing Layers Date
DIVIR 02600-1a 0,19 10-30-01
Wooded Job No. Revision Figure Scale
MlX/-1102600 9-24-04 3 1 "=50'
0
® Title
2003 Direct -Push Injection Point Locations
IB-3 1IIW-411 O
• Q Project
D�yi'-F O Asheboro Sock facility
MW-13 ® I:-11 Asheboro, North Carolina
�U-10b
-10C O
-9
1vIVG'-17® _ p �-4 0 Legend:
IB-7 IB-8 ® NiW-6b
'- ®IVIW-1 5aprolite Unit Monitoring Well
❑ B_ Main
Plant 1HDW-1 Bedrock Unit Monitoring Well
MW-22a) MW-21$ Building
bIW-14 B Property Line
lvfw 18® ® 1v1W- MTV-21e • 1B-2 Direct -Push Injection Point
R ® ❑
w� DW-1
C 14
R
®DW-2
El
-?� ® DW-3
Trailer Park MW-1
DW-5
MW-1�
MW-16
Parking
Lot
MW-
6) fence
Burmii Road (SR 1500)
Wooded

N1W_11ia ❑
MW-18
VIW-20 jD
(BDL)
DLL'-5
November 2001
Pre Phase I Injection
40
June 2004
Pre Phase III Injection
of
0
MW-200
(BDI,)
DW-5
Tip--'-11
;BDI;
MAX'-4
L)i "
igkb Da-4
NIW-6b
MiX'-1
\J b'IW-4
0 (<1) B
B
DW-4
NRt'-1 N -10b
(-1)
MW-6b
(5.41
9
(NS) N
& S( S
MW-18
Y. 0
x
x
DW-2
X?y(NS+
M)XI-20Q) NIX 1- MVP 1
<< a (\.
DW-5
October 2006
Legend
Mi7L'-] 1
OTAW-11
ti ®MW-1 Saprolite Unit Well
N]W-4 QO (BDL Nam'-4
DW_4 � (� O � E
NIW-13Q' ] DW-4 DW-1 Bedrock Unit Well
0(5,800) MW- h° '-10b
(BD )
Nltx;_17 (6,100) Tetrachloroethene Concentration in ppb
(BQ L) NIW-6b
17 (2) NIX'-6b
PCE Concentration 1,000-10,000 ppb
✓-2] MW
!D PCE Concentration 100-1,000 ppb
! (24 N1W-14
•� � 3
ElN, g ❑ PCE Concentration 10-100 ppb
1 ( 0
] PCE Concentration BDL-10 ppb
DNX-2
DW-2
NU 20 ^ August 2005
September 2003 MW i Mt�i_20 MW-1 M
P 'BO LI Two Weeks Post hzW_1
Post Phase II Injection D\X'-5 cBDLI
Phase III Injection DW.-5ENTAL t�nl,l
0 0. Layers ate Title
DUNCKLEE avv.ROLES LR VECONSSUITE
UI EN02 02600 1 12-15-2005 Snapshots of Saprolite Plume from 2001 to 2005
CARY. NORTH CAROLINA 27511
& DUNHAM OFFICE 919)85B-9898 cawing lgure Scale Project
WEB DUNCKLEEDUMAMCOM 4 Not to Scale Asheboro Sock Facility, Asheboro North Carolina

Wooded Area
MW-22
DUNCKLEE ENvtiLONMENrAL CONSULTANTS
s11 KELA.ER GRrvE - SUITE 102
CART, r+oRni caea.Bm Mn& DUNFiAM OFFICE rq19)esa-9e9a
WEB SWCK WUNIAM COM
Job No. Layers Date
02600 0, 1,20 1/28/2008
� M\x'-12
Drawing Figure Scale
02600-1 5 As Shown
® Water
MW-11 Towers Title
Estimated Impacted Potassium Permanganate Slimy Injection Locations
O
Source Area M\V-4
ASTs Project Kayser Roth Facility
B- N Asheboro, North Carolina
Brick SIB-23 DW-4
Residential NRV-13 fir IVG'_10b
Home �� B- 3 SIB-22
IB-21 O Legend
iB-i iB-zo
MW7_17 ,%: 1B-1 _» Q Property Line
iB MW-6b
1 -19 �( Fence Line
Main
PumpL-1 Plant OMW-16
A1W-21� /House Building Saprolite Unit Well
Brick
Garage MW-14 -
MW-18 9 Bedrock Unit Well
® Electrical Substation • 113-2; Injection Points for March 2005
D\W-1 Permanganate Slurry Injection
l3 R Cross Section Line
Mobile Boiler
Homes ®DW-2 House
MNV-20 _ - 6 DW-3
M\V_1
D\w'-5
Trailer Park
ik
&RV-19
MW-16
Parking
—Fence Lot
Bumvl Road (SR 1500)
Scale
90 45 0 90 180
1 "=90'

Wooded Area
M\V-22 &
Estimated Impacted
Source Area
Brick
Residential ��\ -7 3 S
Home
IviW-17 i
MW
TiW-21
Brick T `-14
Garage &� it
:�l
rD
MW-18
rz
r
v,
rD
rD
Mobile
Homes
TIW-20 0
DW-
Trailer Park (N'S)
al'
TI\V-19
T '-9
BUrrnil Road (SR 1500
J
Wooded
Water
Towers
TIW-4
DW-4
10br w, (NS)O
MW-6b
Pump
/House
91
DW-2
W
MW-1
1
�H
�a
--- '
0 G
APT-5 S
00
Y
C
U
r`
U
b
W
3
3
Z
O
Rt'
r4
« N
i-r
R
Ln .S
�L
STs
N o
�
�v
'n
Plain
Plant
,n
Building
o
TIW-2b
Electrical Substation
Boiler
Legend
U
House
M\'
a�
o
°r
l�
— — —
Property Line
.,
solo,DW-3
(S>) X Fence Line
Q� lv1W-16
Saprolite Unit Well
Z
Z
7---J
y o�
N
N DW-3
Bedrock Unit Well
o
y o
o
�--�
Cross Section Line
p � U
w
p
cs
a
a� Q
(390)
PCE Concentration in ppb-
(BDL)
Below Labratory Detection Limit
-
(NS)
Not Sampled
`-
swwdw
by D.I. In}2mxi
l
PCE Concentration 1,000-10,000 ppb
U
Fence
Parking
®
PCE Concentration 100-1,000 ppb
c
Lot
0 0
PCE Concentration 10-100 ppbCd
3 3
p
■ ®
PCE Concentration BDL-10 ppb
p
V))
Fi
aure
0 100' 200' 6
MEMi
Graphic Scale: V = 100'

� o
a
Q O
^y U
W � 3
MW-12 a 1z
Wooded Area ® Water „ N
1\fW"-11 Towers rA 5
Estimated Impacted !1 B Q w U
Source Area b1\Y'-4
1 ASTs N
•y z
Brick DW-4 � Residential MW-13 9 M W- I ObI. U
Home O
h1W-17 O
MW-R MW-6b
Main
Pump Plant o
N1\V-22 & IVIW-21 /House Building
Brick X -14 Ll
Garage_3 1\,IW-2b N y
MW-1 SfD
A
Electrical Substation
�• A
O
r
Boiler Legend y
Mobile House DW
Homes -2 o w
72
_ _ _
Property Line = �
/
1,1\lr' 20 DW-3 0 U w `;t MW-1 (92ff x------ n Fence Line aFi
o
DW B 0 bi\V-16 Saprolite Unit Well � 0 z � c
Trailer Park (4) � Z �
Cq
® DW-3 Bedrock Unit Well 0 0 o CU
Cross Section Line
b1W-19 pa d
MW-16 (190) PCE Concentration in ppb 0-
O3n1- Below Labratory Detection Limit
(\i) Not Sampled iu
1 a U in
Da by sa W by llata Inferred
0 ❑ PCE Concentration 1,000-10,000 ppb a
N -9 �.J 1 Fence
i Parking (3 Ej PCE Concentration 100-1,000 ppb
Lot 0 a 3 II
i PCE Concentration 10-100 ppb
� ■ ® PCE Concentration BUL-10 ppb
Bur�;1 Road (SR lsao� Figure
0 100' 200'
Wooded
Graphic Scale: 1 " = 100'

Table 1. Historical Ground Water VOC Analytical Data
MW-1"
Sample Date
PCE in µg/L
TCE in µglL
Chloroform in
0811,
cis 1,2-DCE in
µg/L
tran 1 2-DCE
inµ L
Manganese in
m
Chromium in
mglL
Chlorides in
m L
A nl9 1999
<5
<5
5
5
NA
NA
NA
Judy 9 1999
<5
<5
<5
<5
<5
NA
NA
NA
September 21999
<S
<5
<5
<5
5
NA
NA
NA
September 14 2000
<1
<1
2.7
<1
<1
NA
NA
NA
Feliniary 15 2001
<0.3
<0.5
2.4
<D.5
<0.5
NA
NA
NA
8.2001
<1
<1
2.1
<0.5
<0.5
NA
I NA
NA
ovember 27 2001
<1
<1
3.3
<]
I <1
0.12
NA
9.7
xil 9,2003
<1
<1
<1
<1
<1
0.14
<0.002
96
IIIIILIRRvnh a 1 Pilot T
>il 30 2003 <1 <t <1 i
<1
0.14
002 42 q4
13 2003
<1
I
<1
I
0.13
o2
U
ase II Pilot Test
Se tember 29 2003 <1 <l <i <I <l
0.13
.
<0.002 90 "
October 27 2003
<1
<I
L2
<I
<1
0.13
<0.002
100
November 24, 2003
<1
<I
-1
<l
<1
014
<0.002
120
Fe 16 2004
<1
<1
<1
<1
<1
0.15
<0.002
69
M 27 2004
<1
<1
<I
<1
<1
0.14
<0.002
130
March 3 2005
<1
<1
<5
1
0 I2
<0.002
5�)
May 23, 2005
<1
<1
`, Slurry InjeCti "
<5 <1
<I NA NA
NA
August 9 2005
<I
<1
<5
<1
<I
0.084
<0.010
35
December 5 2005
, I
7
<1
<5
<I
<1
NA
NA
NA
April 10 2006
<1
<1
<1
<1
<1
NA
NA
NA
October 11 2006
<1
<1
<1
<1
<1
NA
NA
NA
April ]7, 2007
<1
<1
<1
<1
<1
NA
NA
NA
October 23, 2007 <I
_ Water In'ectioo„
<I 3.5 <I
U
NA
SA
N:A
L Standard
0.7
2.8
70
1 70
100
NIW-2b
Sample Date
PCEin µg/L
TCEin µg/L
Ch loroform in
ugiL
cis 1,2-D(C1,in Iran l_-DCE
gitin pg/L
Manganese in
Chromiinu in
mr'1,
Chlorides in
m„L
September 8, 1999
3
<1
41
<I - I
NA
NA
NA
September IS 2000
9 1
<l
24
<1 <1
NA
NA
NA
November 6 2000
6
<1
24
<1 <]
NA
NA
NA
Feliniaty 15 2001
T8
<0.5
23
<0.5 <0.5
NA
NA
NA
Well Not Accessible After Febru 2001
21, Standard 0.7 2.8 70 10 100
MW-3
A nl9, 1999 180
TCE in
Chloroform in
µ2/L
cis 1,24DCE in
µg/1.
trap 12-IICE
in µyJL.
Manganese in
mg/L
Chromium in
Chlorides in
m;Jl.
5
5
<5
--5
NA
NA
NA
Jul 9 1999 250
6
<5
<5
<5
NA
NA
NA
September2 1999 160
10
10
<10
<10
NA
NA
NA
September 15 2000 440
6.3
4.6
<1
<1
NA
NA
NA
ovemb 8 2000 270
5.4
3.9
<1
<1
NA
NA
NA
j
Fe 15 2001 1 100
<5
11
<5
<5
NA
NA
NA
May 8, 2001 800
<10
- Io
<10
<10
NA
NA
NA
November 28, 2001 160
T2
43
<.I
<1
NA
NA
N:\
„ Phase I Pilot Test
ase 11 Pilot Test
August 13 2003
600 <1
<1
<t
<170!021
2
<0.002
7.1
Sear ber 29 2003
420 <1
<1
<1
<15
<0.002
8A
October 27 2003
670 <l
<1
<1
<13
<0.002
11
November 24 2003
540 <1
<t
<t
<18
<0.002
19
Fe 16 2004
1100 <10
<10
<10
<104
<0.002
14
M 28,2004
460 <5
<5
<5
<5
<0.002
29
March 3, 2005 760 1.8
May23 2005 690 4.1
<5 <I <13
,. Shtrry Injection
<5 <1 <I
0.047
<0.002
<0.010
12
IIIIIIIIIIIIIIIIEL-
13
August 9 2005
410 6.4
<5
<1
<1
0.019
<0.010
13
December 5 2005
320 7.1
<5
<1
<1
NA
<0.010
14
April 11 2006
660 5.2
2
<1
<1
0.0086
<0.002
14
October 11 2006
230 6.9
2.6
<1
<1
0.0088
0.011
19.9
April 17, 2007
390 <2
<2
<2
<2
0 078
<0.005
1 13.8
Water Injection
October 10._007
456.0
9.0
5.1
<5
-
0.005_u
005 22.9
Standard
0.7
2.8
70
1 70
100
RgIL = Parrs per billion or ppb
BDL - Below detection limit (laboratory reporting limit unknown)
NA - Not Analyzed (compound not on target list)
All samples through May 2001 collected by GalaTech, Inc.
* Samples Currently Collected in Passtve Diffusion Bag Samplers
mg/L=Para per million -pp.
PAKayser-Roth\Ashebomo 02600\DWQ Phase\Excel\Table 1 iEstorical Analytical 1 of 8

Table 1. liistorical Ground NNatei M(C Xllalctical Data
Sample Date PCE in µg/L ICE in py,/I.
Chloroform in
11901,
cis l,2-DCE in
µ
tran 12-DCE
i 1,
Manganese in
mg/L
Chromium in
mg/l,
Chlorides in
Se tember9 1999 <1.., I
<1
<1
<1
September 15 2000 <1 <1
<1
<1
<1
\A
\ \
Webruary 13 2001 <0.5 <0.5
<0.5
<0.5
<0.5
%A
NA
1M.v 8 2001 <0.5 <0.5
<0.5
<0.5
<0.5
NA
\A
\ \
ovember262001 <1 <1
<1
<t
<l
NA
NA
\\
Phase I Pilot Test
Phase II Pilot Test
Nov ember 21, 2003 <1 <I <1 <1 <I NA
Mav 26.2004
<1
<1
<I
<1
<I
AA
NA
A,A
Aw Slurry Injection
May 23 2005
<1
<1
<5
1 <1
<1
NA
NA
\:\
Decembers 2005
<I
<1
<5
<1
<1
NA
NA
\ \
April 12 2006
<1
<1
1.7
<1
<1
NA
NA
\:\
Ocotber 12 2006
<1
<1
<1
<I
<1
NA
NA
\ \
A ril 17, 2007
1 <1
<l
1-I
<1
<1
NA
NA
S1
Water Injection
October 10. 2007
NS
NS
\S
SS
\S
\S
\
\�
LStandard
0.7
2.8
70
70
loo
►\ \\M
Sample Date
PCE in µg/L
TCE in µg/L
Chloroform in
µg/L
cis 1,2-DCE in
µg/L
tran 1,2-DCE
in pg/L
Manganese in
mg/L
Chromium in
mg&
Chlorides in
in
April 91999
15
<5
<5
<5
<5
NA
NA
NA
July 9 1999
<5
<5
<5
<5
<5
NA
NA
NA
September 2 1999
<5
<5
<5
<5
<5
NA
NA
NA
September 14 2000
<1
<1
<1
<1
<1
NA
NA
NA
February 12 2001
<t
<1
<1
<1
<1
NA
NA
NA
May 8 2001
<0.5
<0.5
<0.5
<0.5
<0.5
1 NA
NA
NA
November 26 2001
<1
<I
<1
<1
<1
NA
NA
NA
November 21 2003
<1
<1
<1
<1
<1
NA
NA
NA
May 26 2004
<1
<1
<1
<1
<1
NA
NA
NA
21, Standard
0.7
2.8
70
70
100
\t\4'-&h
Sample Date
PCE in µg/L.
ICE in µg/1.
Chloroform in
L
p
cis 1,2-DCE in
p
tran ] 2-DCE
is
Manganese in
-
m L
Chromium in
m L
Chlorides in
m L
September 8, 1999
<1
<1
<1
I <1
NA
NA
NA
Se tember 15 2000
<1
<1
<1
<1
NA
NA
NA
February 13 2001
<0.5
<0.5
<0.5
<0.5
NA
NA
1 NA
May 8 2001
<0.5
<0.5
<0.5
<0.5
<0.5
NA
NA
NA
ovember 27 2001
<1
<1
<I
<1
<1
0.98
<0.002
48
My 9, 2003
1.2
<1
<1
<1
<1
0.52
<0.002
220
Phase I Pilot Test
July 30 2003
1.3
<I
<i
I <1
<1
0.45
<0.002
200
August 13, 2003
<1
<1
<1
<1
<1
0.44
<0.002
210
_ Phase
<1
it Pilot Test
<1
<1
"
0.41
<0 002
180
September 12 2003
2
<1
October 27 2003
<1
<1
<1
<1
<1
0.51
<0.002
220
ovember24 2003
2.8
<1
<1
<1
<1
0.48
<0.002
220
Fe 16 2004
2.2
<1
<1
<1
<1
0.58
<0.002
220
May 27, 2004
2.9
<1
<1
<1
<1
0.47
<0.002
390
Slurry Injection
May 23 2005 1.4 <1 <I <1
<1
0.370
<0.010
MEME
170
December 5 2005
3.8
<1
<1
<I
<1
NA
<0.010
82
April 11 2006
10
<1
7
<1
<1
0.130
<0.002
121
October 11 2006
5.4
<1
<1
<1
<1
0.210
0.0061
138
April 17 2007
2.3
<1
<1
<1
<1
0.170
<0.005
128
Water Injection
Octoberl0 2007 <t - l - 1 U
-
<t
-
0_173
<0.005
92 o
M&btanclard
0.7
2.8
70
70
100
µg/L = Parts per billion or ppb
BDL = Below detection limit (laboratory, reporting limit unlawwn)
NA - Not Analyzed (ro end not on target lisp
.-111 samples through:Nay 2001 collected by Uaial ech, Inc
Samples Currently Collected in Passive Dion Bag Samplers
mg/L=Pats per million or ppm
P:\Kayser-Roth\Asheboro-02600\DWQPhase\Excel\Table 1 Historical Analytical 2 of 8

Table 1. Historical Ground Water I'OC Analvtical Data
M W-7"
Sample Date
PCE in µg/L
TCE in µg/L
Chloroform in
cis 1,2-DCE in
/L
tran 1,2-DCE 11anganese in
in /L m •/L.
Chromium
in
mg/1,
Chlorides in
m •/t.
July 12, 1999
5
7
5
<5
1 5
NA
VA
SA
September 2 1999
<1
10
7
<l
<1
NA
NA
NA
September 15 2000
<1
4.4
7
<1
<1
NA
NA
NA
February IS 2001
<0.5
6.4
3 8
<0.5
<0.5
NA
NA
NA
8 2001
ovember 24, 2003
<0.5
<1
1.7
<1
8 5
2
Phase
Phase
<0 5
I Pilot Test
11 Pilot Test
<0.5
NA
NA
NA
NA
NA
A' A
May 25, 2004
<t
<1
3.3
NA
NA
NA
z Slurry Injection
May 23 2005
<1
<1
<5
- I
- I
NA
NA
December 5 2005
<I
<1
<5
I
NA
NA
April 12 2006
<1
<1
1.7
11
<1
NA
NA
October 12 2006
<1
<1
1
<1
<t
U
NA
NA
April 17, 2007
<_ 1
<1
Q
<1
- 1
NA
N.AWater
Injection
(Otober10,2007
Dig
Dn
Dry
Dnii„
Dn
1)"
2L Standard
0.7
2.8
70
70
100

Table 1. Historical Ground Water VOC Anal tical Data
.-.1 tat.
Sample Date
PCE in µg/L
"CCE in µg/L
Chloroform in
cis 12-DCE in
tran 1.2-DCE
-Nt:mganese in
Chromium in
Chlorides in
September 281999
4300
<50
<50
<50
<50
NA
NA
October6 1999
4000
1
<1
<1
<1
NA
NA
NA
September 15 2000
8,900
2.5
<1
<1
<1
NA
NA
NA
November 8 2000
6,300
<100
<100
<100
<100
NA
NA
NA
February 12 2001
9,000
14
<l
<1
<1
NA
NA
NA
May 8 2001
1 7 000
<10
<10
<10
<10
NA
NA
NA
Jul 9 2003
9 700
1.2
<1
<1
<1
0.084
0.0059
3
Jul, 30, 2003 6,900 <1
Phase I To Test
< Q <1
0.053
0.0043
24
August 13, 2003
9,300
<I
<I
<l
<1
0.046
0.0028
Phase II Pilot Test
<1 <t
•-'
<1
1.1
-.-
0.01
7.2
September 29, 2003
5,800
<1
October 27 2003
4,400
<I
<I
<1
<I
0.24
0.0042
4.9
November 26 2003
6,400
<1
<1
<1
<I
0.22
0.0054
4.6
February 16 2004
8,200
Q00
<200
Q00
<200
0.41
0.0043
3.8
May 28 2004
10 000
<100
I <100
<100
<100
0.26
0.0033
0
March 3, 2005
6,100
1.4
<5
<I
<1
0.33
1 <0.010
1.5
Slurry InjidW
May 23 2005
<100
<100
<500
<100
<100
730
<0.010
<50
Au 9 2005
<1
<1
<5
<1
<1
23
0.012
<10
December 5 2005
2.6
<1
<5
<1
<1
NA
<0.010
<10
April 12 2006
<1
<1
<1
<1
<1
12
0.045
7.78
October 12 2006
<1
<1
<1
<1
<1
NS
NS
12.9
A ril 17 2007
<1
<1
<1
<1
<I
270
0.011
42,900
Water Iti eeliod _�.__.. .
October 1 Q 2007
Di
Dr,
Dn-
Dn-
Drv-
Dry
Dry
Dn
L Standard
0.7
1 2.8
70
70
100
NIX ADc
Chloroform in
cis 1.2-DCE: in
tran 1 2-DCE
j Manganese in
Chromium in
Chlorides in
Sample Date
PCL in pg/l.
TCE in pg/L
µ /l,
µ
inµ L
m L
m
m L
\ht\ _'8.2004
42
- I
26
<I
'I
NA
NA
NA
21. Standard
0.7
'_.8
70
70
100
%1" -41
Sample Date
PCE in µg/L
TCE in pg/L
Chloroform in
µg/L
cis 1,2-DCE in
µg/L
tran 1,2-DC'E
in 1g/1.
Manganese in
mg/L
Chromium in
mg/L
Chlorides in
mg/L
Octobers, 1999
Q
I
i
I
N�
September 14 2000
<1
<1
-1
\,\
N
February 13 2001
<05
<0.5
<OS
\A
NA
Nd
May 8,2001
062
<0,5
<0.5
-05
<U.5
NA
NA
A:>
Phase 1 Pilot Test
Phase 11 Pilot Test
ovember2l 2003
Q
<t
<7
<=7
4
NA
NA
May 26 2004
<i
1
I
<7
<l
NA
NA
March 3 2005
<1
�1-5
<1
<1
0.02
<0.010
'- Slur Injection
M 23 2005
<t
<1
<5
<1
<1
0.019
<0.010
8
9 2005
<1
<1
<5
<1
<1
0.022
<0.010
2.7
December 5 2005
<1
<1
<5
<1
<1
NA
<0.010
2.5
April 12 2006
NS
NS
NS
NS
NS
NS
NS
NS
October 12 2006
<I
<1
<1
<1
<1
0,046
<0.005
4.15
ril 17, 2007
NS
NS
NS
NS
NS
NS
NS
NS
- Water Injection
October 23, 2007
<1 °I
-I
<1
<1
NA
NA
NA
L Standard
0.7 2.8
70
70
100
ag L - Parrs per b,lh, or ppb .,.a = Xot Analr d (compound not on target list)
BDL = Below detection limit (laboratory reporting limit unknown)
NS-Not Smnpled
'.Samples ['urrentlr Collected in Pass- D ff slon Bag Samplers
All samples through May 2001 collected by GaiaTech, Inc.
mg/L=Parts per million or ppm
P:\Kayser-Roth\Asheboro-02600\DWQ Phase\Excel\Table I Historical Analytical 4 of 8

Table 1. Historical Ground Water VOC Analytical Data
MW-12
Sample Date
PCE in µg/L
TCE in µg/L
Chloroform in
PKIL_
cis 1,2-DCE in
PWL
tran 1,2-DCE
is L
Manganese in
L
Chromium in
in L
Chlorides in
in0,
October 6 1999
1
<I
<1
<1
<I
September 14, 2000
<1
<1
<1
<1
<I
February 13, 2001
<0.5
<0.5
<0.5
<0.5
<0.5
May 8 2001
<0.5
<0.5
<0.5
<0.5
<0.5
NA
NA
NA
Jul 9 2003
<1
<1
<I
<1
<1
0.066
0.0048
3.7
July 30, 2003
I Pilot d!t'
<1 1 <l <I
- •_ .. - ,
<l 0.0'_ 0.0027 2 Q
August 13,2003
<1
....I
-:1
<-I <1
0.01
0.0021
I
Aff Phase 11 Pilot Test
September 29 2003
1
<I
<I
<1
<1
0.012
<0.002
15
October27 2003
<I
<1
<1
<l
<1
0.0054
<0.002
2.5
ovember 21 2003
< 1
<1
<1
<t
<1
0.012
0.0026
2.9
February 16 2004
<1
<1
<1
<1
<1
0.016
0.0021
2.6
May 26 2004
<1
<1
<1
<1
0.03
0.03
0
21, Standard
0.7
IN
70
70
100
,\I\\-13
Sample Date PC}: in I.
µg/
TCE in pglL
Chloroform in
cis I,'_-D('E in
tran 1,2-DCE
L
Manganese in
tit gll.
Chromiwn in
Chlorides in
February 15, 2001 -
<0,5
NA
NA
March 1, 2001 -
-
_
<0.5
NA
NA
May 9, 2001 I.:+ -
OS
<0.5
NA
NA
NA
November 28, 2001 9.2
i-
I
<1
NA
NA
NA
Phase I Pilot Test
Phase 11 Pilot Test
November 25, 2003
3.8
- 1
-I
I
- 1
S4
NA
NA
May 28, 2004
J 3
I
- I
- 1
NA
N A
A
Slurn Injection
May 23, 2005
<1
- I
_-1
1
1 1
0.57
<0 01
Decembers 2005
14
"1
1
- 1
NA
0.011
24
April 10 2006
4
<1
4 1
<1
1
0.15
100026
�30
October 1 2006
5.2
<1
-
<1
- 1
1 '_
0",
4 69
April 13, 2007
6.2
-1
b.4
-1
- 1
0.11)
49
Water Injection
October 10, 2007
14.7
1
; 1
0.161
<0.005 " 0
21, Standard
0.7
2.8
70
70
lu0
Nl\\-17
Sample Date
PCE in µg/L
TCE in µg/L
Chloroform in
cis 1,2-DCE in
µ /L
tran 1,2-DCE
in pg/L
Manganese in
mg/L
Chromium in
mg/L
Cli lorides in
m
February 15 2001
2,500
4.6
1.2
<0.5
<0.5
\A
NA
NA
March 1 2001
2,200
6.2
1.4
<0.5
<0.5
NA
NA
NA
May 9, 2001
9600
<100
<100
<I 000
<1 000
NA
NA
NA
ovember 28, 2001
1,200
6.9
1.9
<1
1.5
NA
NA
NA
Augwt 13, 2003 13,000 <1
ase i Pil; "t '
<1 <1 <1 O.G'_6 <0.002 10
'Phase I Pilot Test
Se [ember 29 2003
<1
<1
<1
<l
<I
12
0.020
14
October27 2003
900
<1
2.1
<1
<1
9.6
0.016
16
ovembes 25 2003
5 00
<1
1.9
<1
<1
2.4
0.019
17
Feb 16 2004
1 00
<50
G50
<50
<50
11
0.021
11
Ma 28 2004
760
<10
<10
<10
<10
35
0.024
20
March 3, 2005
May 23,2005
6 500
6300
8.8 <5
Slur jB' '
QO <100 <20
<1
<20
0.14
0.53
0.020
0.023
5.4
5.2 `
August 9 2005
5 800
<20
<100
<20
<20
0.43
0.015
4.9
December 5 2005
720
<20
<100
<20
QA
NA
<0.010
5.7
April2 2006
6800
<50
<50
<50
<50
0.35
0,019
7.49
October 12 2006
1,800
<0
QO
<20
<20
1.5
0 01 a
8.36
A ril 17, 2007
7,200
<10
<10
<10
<10
0.044
0.0I S
5.91
Water Injection
October 10 2007
2,350.0
<50
10
10
Its
�1818
0 0102
7.8
L S
0.7
2.8
70
70
1 oo
ug,L = Paru per billion or ppb NA = NmAnalysed (compound not on target list) • Samples Currently Collected in Passive Dion Bag Samplers
BDL - Below detection limit (laboratory reporting limit unknown) All samples through May 2001 collected by GmaTech, Inc.
mglL-Paru per million or ppm
P:\Kayser-Roth\Asheboro-02600\DWQ Phase\Excel\Table 1 Rstoncal Analytical 5 of 8

Table 1. Historical Ground Water VOC Analytical Data
t'iw_10
Sample Date
PC F, in µg/1.
TCE in µy/L
Chloroform in
µg/I,
cis l,'_-DCE in
µglL
I tran 1,2-DCE
in µg/L
Manganese in
mg/L
Chromium in
mglL
Chlorides in
mg/L
Phase I Pilot Test
Phase Il Pilot Test
ovember 20, 2003 <1 <1 - I <l <I NA NA
Slurry Injection
May 23, 2005
<l
<15
<1
<1
0.65
<0.0103
December 5, 2005
Dry
Dry
Dn
Dry
Dry
Dry
D
Dry
21, Standard
0,7
2.8
70
70
100
xlx%-Mn
Sample Date
PCE in µg/L
TCE in µg/I,
Chloroloi-n in
/1,
cis 1; -DCE in
1L
tran 1,2-1)CE
in L
Manganese in
ra I,
Chrominm in
m L
Chlorides in
no L
November 27, 2001
<7
<1
<I
II
NA
NA
NA
Phase 1 Pilot Test
Phase II Pilot Test
November25, 2003
32
A
SA
N:A
May 26 2004
<l
A
NA
AA
Slurry Injection
May 23 2005
<1
<1-1
<1
NA
NA
NA
Decembers 2005
<1
<1
5
<1
<1
NA
NA
NA
April 12 2006
<1
<1
,.I
<t
<I
NA
NA
NA
October 10, 2006
April 17, 2007
<1
<I
I
<1
<1
NA
NA
NA
WE
Water Injection _
October 23, 2007
<1 <1
3 9
<7
<t
NA
NA
NA
L Standard
0.7 2.8
70
70
100
Sample Date
PCE in µg/L
TCE in µg/L
Chloroform in
µ /L
cis 1,2-DCE in
µ
tran 1,2-DCE
inµ L
Manganese in
m
Chromium in
m
Chlorides in
m L
ovember 27, 2001
22
<1
2
<1
<1
0.068
0.002
17
July 9, 2003
<1
<I
I
<1
<1
0.03
1 <0.002
12
Phase I Pilot Test
July 30, 2003
1 18
4
- I
<t
<7
0.01
<0.002
16
August 13, 2003
5.1
<1
I
<1
<1
0.04
<0A02
8.4
Phase If Pilot Test _
September 29 2003
21
<1
<1
<1
<1
0,014 <OM2
19
October 27 2003
30
<1
L5
<1
<1
0.016 <0.002
19
November 20 2003
35
<1
1.9
<1
<1
0.0004 <0.002
26
February 16 2004
30
<1
<l
<l
<1
0.02 <0.002
22
May 25, 2004
26
<1
1.9
<1
<1
0.024 0.024
23
March 3. 2005
23
<1
<5
<1
<1
0.013 <0.010
16
Slurry
injection
May 23 2005
24
<1
<5
<1
<1
0.023 <0.010
16
August 9 2005
24
<1
<5
<1
<1
0.028 <0.010
17
Decembers 2005
35
<1
<5
<1
<1
NA <0.010
19
April 10 2006
45
<1
2.6
<1
<1
0.0098 <0.002
22.7
October 10 2006
28
<1
1.5
<1
<1
0.034 <0.005
18.3
April 17, 2007
39
<t
L8
<1
<1
0.014 <0.005
19.2
Water Injection
October 10.
1 9.7
<1
I
I 1
� I
I 0.0549 <0.005
11.4
2L Standard
1 0.7
2.8
70
1 70
100
ug "L = Paru per billion or ppb • Samples Currently Collected in Passive Diffusion Bog Samplers
BDL - Below defection limit (laboratory reporting limit -k—n.) mg/L=Parts per million or ppm
NA = NotAnalyred (,compound not oa target list)
P:AKayser-Roth\Asheboro-02600VDWQPhaaeAExcel\Table 1 IEistorical Analytical 6 0` 8

Table 1. Historical Ground Water VOC Analytical Data
MW-22•
DN-1
Sample Date
PCE in µg/L
TCE in µg/L
Chloro grit in
µ L
us In
µ L
file -
•2-
inµ L
anganese in
to L
Chromium in
mg/L
COnMes in
mg/L
July 12 1999
120
10
11
<5
<5
NA
NA
NA
September 8 1999
210
12
8
<1
<1
NA
NA
NA
September 15 2000
190
11
9.3
<1
<1
NA
NA
NA
November 8 2000
240
9.4
8.9
<1
<1
NA
NA
NA
February 15 2001
310
14
12
<2.5
<2.5
NA
NA
NA
May 8, 2001
240
12
14
<10
<10
NA
NA
NA
November 28, 2001
11
8.6
4.2-I
<.I
NA
I NA
NA
November 24, 2003 <1 <1
Phase l Pilot Test JOEL
Phase II Pilot Test
6.6 1 <1 NA NA NA
May27 2004
540 11
3
1
<1 NA NA NA
March 3, 2005
270 <25
<25
<25 0.012 0,017 15
.. Slurry Injection
May 23 2005
400
16
<5
<10
<10 <0.010
0.014
14
August 9 2005
400
15
<5
<1
<1 0.19
0.013
14
December 5 2005
420
16
<5
<1
<1 NA
0.014
15
April 112006
590
16
4.1
<1
<1 3.6
0.012
20.7
October 11, 2006
440
15
3.8
<1
<1 1.2
0.012
22.3
A riI 17, 2007
480
16
<5
<5
<5 0.01
0.01
23.9
`_�"
October 10. 2007
729 0 24.6
'W'ater ln'
6.1 1 <5.0
<5.0 0.379
0 0094 23.2
L Standard
0.7 1 2.8
70
1 70
100
Doi'-2
Sample Date
PCE in µg/L
TCE'ie µg/I,
"Toro form"
µg/L
,2-DCE in
µg/L
trap 1,2-DCE
in µg/L
.0
Chromium in
mg/L
Chlorides in
mg/L
July 12 1999
140
<25
<25
<25
-
NA
NA
NA
September 8 1999
190
3
14
<1
<l
NA
NA
NA
September 15 2000
320
3.3
18
<1
<1
NA
NA
NA
November 8 2000
410
<10
19
<10
<10
NA
NA
NA
February 15 2001
420
<2.5
14
<2.5
<2.5
NA
NA
NA
May 8 2001
420
<10
18
110
<10
NA
NA
NA
November 28, 2001
340
4.5
15
<1
<l
0
NA
85
July 9,2003
350
<1
<1
<1
<1
0
<0.002
130
`
Phase I Pilot Test "
July 30 2003
250
<1
15
<1
<1
0
<0.002
1'n
t13 2003
370
<1
I
<1
0
<0.002
1
September 29 2003
<1
Phase If Pilot Test
<1 I <1 <1 29
0.044 89
October27 2003
290
1.5
15
<1
<1
0.079
0.11
100
November 24 2003
21
<1
16
<1
<1
9.3
0.12
130
February 16 2004
81
<1
<1
<1
<1
1
0.18
80
May 27 2004
550
1.4
10
<1
<1
0.016
0.075
160
March 3 2005
May 23 2005
340
390
3.7 15 <1 <1 <0.010
Slurry Injection
3.4 14 <10 <-10 <0.010
0.031
0.022
90
98
August 9 2005
330
3.7
11
<1
1
<0.010
0.021
88
Decembers 2005
390
4.3
11
<1
<I
<0.010
0.021
83
April 11 2006
710
5.5
12
<1
1
0.0083
0.017
80.1
October 11, 2006
430
4.6
15
<1
;-1
<0.005
0.013
9Z0
A nl 17, 2007
610
<5
15
<5
=5
0.037
0.0089
98.7
"
Water In'
October 10, 2007
1 883.0
1 5.6
252
<5
<5
1 0.0344
0.0063
1200.11
2L Standard
1 0.7
1 2.8
1 70
70
1 100
ug L - Parts per billion or ppb-Samples Currently Colle-din Passive Div,,- Rag .Sample,,
BDL - Below demcnon limit (laboratory reporting limit unimown) mg L -Parts per million or ppm
NA - Not Anal ned (compound not on target list)
P:\Kayser-Roth\Asheboro-02600\DWQ Phase\Excel\Table 1 Historical Analytical 7 of 8

Table 1. Historical Ground Water VOC Analytical Data
"W-'2
Date
1'CE in µg/L
TCE in µg/L
-
(chloroform in
g/L
cis L2-D('F. in
µi"A'
tran 1,2-DCE
in no.
Manganese in
m
Chromium in
m
Chlorides in
m
38
15
-
NA
NA
NA
999
F15,2001
37
31
34
<1
NA
NA
NA
2000
54
37
41
1
<1
NA
NA
NA
000
47
18
59
<7
<1
NA
NA
NA
001
70
22
86
05
<0.5
NA
NA
NA
May 8 2001
78
18
78
<1
<1
NA
NA
NA
November 27 2001
51
28
43
<l
<1
NA
NA
NA
" --
August 13, 2003
99
<l
Phase I Pilot Test
39 �- l <1
0 <0.002 61
Phase II Pilot Test
26 30 <1
<1
0
<0.002 60
September 29 2003
90
October27 2003
230
57
55
<1
<14NA<0.010
0.002 65
ovemher24 2003
110
26
36
<1
<10.002
77
Fe 16 2004
100
32
33
QO
QO0.002
64
May 25, 2004
97
29
32
<1
<10.002
140
March 3,2005
85
38
'I
<10.010
64
May 23 2005
98 25L29
SlurryInjectioa
<10
<100.010
65
Au t 9 2005
76
26
<1
<10.010
64
December 5 2005
80
23
<1
<1
65
April 10 2006
110
26
<1
<1
<0.005
<0.002
71.4
October 10 2006
97
23
<1
<1
<0.005
<0.005
70.5
A ril 17, 2007
120
24
<1
<1
<0.005
<0.005
71 6ter
October 10, 2007 126.0 28 9
33.3
In' n
<1 <1
<0.005
1 <0.005
70.6
2L Standard
0.7
2.8
70
70
1 100
ill\ _A
Sample Uate t hlorofnrm in
P(E in µg/L TCE in µg/L
ug/l.
cis 1.2-DCin in
µK/L
Iran 1, -DCE
L
Manganese in
-in it,
Chromium in
m;/1,
Chlorides in
m
Se tember;,'rr�%�� -1 39
<1
S.4
'v,1
NA
September 14 2000 <1 44 <1
<1
<1
NA
NA
NA
February 15 2001 <0.5 32 1.2
<0.5
<0.5
NA
NA
NA
May 8 2001 <1 40 1.5
<1
<1
NA
NA
NA
November 28 2001 <1 29 1.7
<l
<l
NA
NA
NA
Phase I Pilot Test
Phase 11 Pilot Test
November 21, 2003 4 24
2.6
--1
I
NA
NA
NA
May 26, 2004 4 25
3 4
1I
NA
NA
NA
Slurry Injection
May 23 2005
1 2
24
5.3
<1
<1
0.14
<0.010
13
Decembers 2005
<1
31
<5
<1
<1
NA
0.037
14
April 10 2006
<1
35
7.4
<1
<1
0.67
0.021
NA
October 10 2006
<1
37
6.6
<1
<1
0.21
0.0086
22.3
April 17, 2007
= 1
-
9.5
<1
<1
0.85
0.028
29.2
Water Injection _
October 10, 200-
1 1
0
I <1
0.436 0 Ot1-9
21
L Standard
1 0.7
2.8
1 70
I 70
1 100
DW-5
Sample Date
PCE in µg/L
TCE in µg/L
Chloroform in
µg/L
cis l,2-DCE in
µ /L
tran 1,2-DCE
in µg/L
Manganese in
mgll.
Chromium in
m';/1,
Chlorides in
mg/L
November 27, 2001
<L
1.2
11
1
'I
SA
NA
Phase I Pilot Test
Phase Il Pilot Test
November 25,_0-',
35
8.2
IS
- I
- I
NA >A.
NA
Mav 25, 2004
4.5
6.7
1-7
I
<1
NA NA
NA
May 23, 2005 4
Slur Injection
7.8 16 <1 <1 0.029 <0.010
52
December 5 2005
2.8
4.0 11
<1
<t
NA <0.010
37
April 10 2006
2.4
2.5 15
<1
<1
0.013 <0.002
42.9
October 10, 2006
2.9
3.6 13
<1
<1
0.014 <0.005
40.4
A ril 17, 2007
3.0
3.8 13
<1
<1
0.0078 <0.005
47.5
October I Q 2007 28 4.0 15.0
<1 4
<0 005 <0.005
42.3
L Standard. J
0.7
1 2.8 70
70
100
ug/L = Party per billion or ppb • Samples Currenrlr ('o(lected in Passive Diffusion Bng sarnplrr.
BDL = Below detection limit Qaborotory reporting limit unknown) mg L=/',- per mlllimr or pp.
NA = Not Analyzed (compound not on target list)
P:IKayser-RothlAsheboro-026001DWQ Phase\Exceffable 1 Ilistoncal Analytical 8 of 8

Table 1. Water Level Data, September 20, 2002.
Well
Top of Casing
Elevation
(ft)
Well Depth
Below Grade
A
Screen Interval
Below Grade
(ft)
Depth to
Water
(ft)
Ground Water
Elevation
(ft)
MW-1
195.69
45.5
25.5 to 45.5
22.98
172.71
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
21.35
166.15
MW-4
207.50
52
32 to 52
24.5
171.34
MW-5
200.53
51.5
31.5 to 51.5
15.84
184.69
MW-6b
205.35
46
26 to 46
24.90
169.03
MW-7
199.26
30
20 to 30
22.98
176.28
MW-8
204.65
50
30 to 50
24.15
180.50
MW-9
175.17
15.71
10.71 to 15.71
11.07
164.10
MW-10b
207.61
38.5
18.5 to 38.5
26.13
169.53
MW-11
205.50
42
32 to 42
21.96
183.54
MW-12
203.62
53
43 to 53
20.42
171.54
MW-13
201.51
40.41
20.41 to 40.41
22.59
168.68
MW-14
199.44
24.78
14.78 to 24.78
Dry
Dry
MW-15
195.34
24.5
14.5 to 24.5
Dry
Dry
MW-16
191.42
14.87
4.87 to 14.87
Dry
Dry
MW-17
200.99
40.9
21.37 to 40.90
27.39
173.60
MW-18
198.70
21
11 to 21
Dry
Dry
MW-19
191.07
25.78
15.78 to 25.78
21.68
169.39
MW-20
198.53
42
32 to 42
23.07
166.02
MW-21
189.09
40
30 to 40
21.45
162.01
MW-22
182.64
37
22 to 37
17.58
160.92
DW-1
200.54
70
60 to 70
29.83
170.71
DW-2
196.53
96
86 to 96
25.81
163.30
DW-3
199.23
87
77 to 87
22.12
166.61
DW-4
207.83
98
83 to 98
26.51
181.32
IL-=
197.98
99
89 to 99
25.89
163.97
NM = Well not measured
Top -of -casing elevations referenced to arbitrary site datum of 200.00 feet
Duncklee Dunham Job No. 02600 Page 1 of 1
02600.xls

Table 1. Water Level Data, September 20, 2003.
Well
Top of Casing
Elevation
(ft)
Well Depth
Below Grade
(ft)
Screen Interval
Below Grade
(ft)
Depth to
Water
(ft)
Ground Water
Elevation
(ft)
MW-1
195.69
45.5
25.5 to 45.5
24.36
171.33
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
23.5
175.61
MW-4
207.50
52
32 to 52
25.52
181.98
MW-5
200.53
51.5
31.5 to 51.5
16.91
183.62
MW-6b
205.35
46
26 to 46
25.99
179.83
MW-7
199.26
30
20 to 30
21.42
177.84
MW-8
204.65
50
30 to 50
25.71
178.94
MW-9
175.17
15.71
10.71 to 15.71
13.78
161.39
MW-10b
207.61
38.5
18.5 to 38.5
27.37
180.24
MW-11
205.50
42
32 to 42
23.09
182.41
MW-12
203.62
53
43 to 53
21.45
182.17
MW-13
201.51
40.41
20.41 to 40.41
22.7
178.81
MW-14
199.44
24.78
14.78 to 24.78
Dry
Dry
MW-15
195.34
24.5
14.5 to 24.5
Dry
Dry
MW-16
191.42
14.87
4.87 to 14.87
Dry
Dry
MW-17
200.99
40.9
21.37 to 40.90
28.39
172.60
MW-18
198.70
21
11 to 21
Dry
Dry
MW-19
191.07
25.78
15.78 to 25.78
23.78
167.29
MW-20
198.53
42
32 to 42
24.96
173.57
MW-21
189.09
40
30 to 40
22.7
166.39
MW-22
182.64
37
22 to 37
19.29
163.35
DW-I
200.54
70
60 to 70
30.95
169.59
DW-2
196.53
96
86 to 96
27.29
169.24
DW-3
199.23
87
77 to 87
23.29
175.94
DW-4
207.83
98
83 to 98
27.60
180.23
DW-5
197.98
99
89 to 99
27.93
170.05
NM = Well not measured
Top -of -casing elevations referenced to arbitrary site datum of 200.00 feet
Duncklee Dunham Job No. 02600 Page 1 of 1
02600.xis

Table 2. Water Level Data, November 20, 2003.
Well
Top of Casing.
Elevation
(ft)
Well Depth
Below Grade
(ft)
Screen Interval
Below Grade
(ft)
Depth to
Water
(ft) 1
Ground Water
Elevation
(ft)
MW-1
195.69
45.5
25.5 to 45.5
24.36
171.33
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
23.5
175.61
MW-4
207.50
52
32 to 52
25.52
181.98
MW-5
200.53
51.5
31.5 to 51.5
16.91
183.62
MW-6b
205.35
46
26 to 46
25.99
179.83
MW-7
199.26
30
20 to 30
21.42
177.84
MW-8
204.65
50
30 to 50
25.71
178.94
MW-9
175.17
15.71
10.71 to 15.71
13.78
161.39
MW-10b
207.61
38.5
18.5 to 38.5
27.37
180.24
MW-11
205.50
42
32 to 42
23.09
182.41
MW-12
203.62
53
43 to 53
21.45
182.17
MW-13
201.51
40.41
20.41 to 40.41
22.7
178.81
MW-14
199.44
24.78
14.78 to 24.78
Dry
Dry
MW-15
195.34
24.5
14.5 to 24.5
Dry
Dry
MW-16
191,42
14.87
4.87 to 14.87
Dry
Dry
MW-17
200.99
40.9
21.37 to 40.90
28.39
172.60
MW-18
198.70
21
11 to 21
Dry
Dry
MW-19
191.07
25.78
15.78 to 25.78
23.78
167.29
MW-20
198.53
42
32 to 42
24.96
173.57
MW-21
189.09
40
30 to 40
22.7
166.39
MW-22
182.64
37
22 to 37
19.29
163.35
DW-1
200.54
70
60 to 70
30.95
169.59
DW-2
196.53
96
86 to 96
27.29
169.24
DW-3
199.23
87
77 to 87
23.29
175.94
DW-4
207.83
98
83 to 98
27.60
180.23
DW-5
197.98
99
89 to 99
27.93
170.05
NM = Well not measured, not accessible
Top -of -casing elevations referenced to arbitrary site datum of 200.00 feet
DunclJee Dunham Job No. 02600 Page 1 of 1 02600. \l <

Table 2. Water Level Data, May 24, 2004.
Well
Top of Casing
Elevation
(ft)
Well Depth
Below Grade
(ft)
Screen Interval
Below Grade
(ft)
Depth to
Water
(ft)
Ground Water
Elevation
(ft)
MW-1
195.69
45.5
25.5 to 45.5
25.4
170.29
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
24.6
174.51
MW-4
207.50
52
32 to 52
26.45
181.05
MW-5
200.53
51.5
31.5 to 51.5
17.69
182.84
MW-6b
205.35
46
26 to 46
26.97
178.38
MW-7
199.26
30
20 to 30
23.10
176.16
MW-8
204.65
50
30 to 50
26.77
177.88
MW-9
175.17
15.71
10.71 to 15.71
Dry
Dry
MW-10b
207.61
38.5
18.5 to 38.5
28.37
179.24
MW-11
205.50
42
32 to 42
24.18
181.32
MW-12
203.62
53
43 to 53
22.13
181.49
MW-13
201.51
40.41
20.41 to 40.41
23.99
177.52
MW-14
199.44
24.78
14.78 to 24.78
Dry
Dry
MW-15
195.34
24.5
14.5 to 24.5
Dry
Dry
MW-16
191.42
14.87
4.87 to 14.87
Dry
Dry
MW-17
200.99
40.9
21.37 to 40.90
29.65
171.34
MW-18
198.70
21
11 to 21
Dry
Dry
MW-19
191.07
25.78
15.78 to 25.78
Dry
Dry
MW-20
198.53
42
32 to 42
26.14
172.39
MW-21
189.09
40
30 to 40
23.13
165.96
MW-22
182.64
37
22 to 37
19.56
163.08
DW-1
200.54
70
60 to 70
31.77
168.77
DW-2
196.53
96
86 to 96
28.09
168.44
DW-3
199.23
87
77 to 87
24.53
174.70
DW-4
207.83
98
83 to 98
28.47
179.36
DW-5
197.98
99
89 to 99
28.93
169.05
NM = Well not measured, not accessible
Top -of -casing elevations referenced to arbitrary site datum of 200.00 feet
Duncklee Dunham Job No. 02600 Page 1 of 1 Semiannual Tables Oct 04

Table 2a. Water Level Data, March 9, 2005.
Well
Top of Casing
Elevation
(ft)
Well Depth
Below Grade
(ft)
Screen Interval
Below Grade
(ft)
Depth to
Water
(ft)
Ground Water
Elevation
(ft)
MW-1
195.69
45.5
25.5 to 45.5
24.97
170.72
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
28.03
171.08
MW-4
207.50
52
32 to 52
NM
NM
MW-5
200.53
52
32 to 52
NM
NM
MW-6b
205.35
46
26 to 46
NM
NM
NM-7
199.26
30
20 to 30
NM
NM
MW-8
204.65
50
30 to 50
27.43
177.22
MW-9
175.17
15.71
10.71 to 15.71
NM
NM
MW-10b
207.61
38.5
18.5 to 38.5
29.21
178.40
NM-11
205.50
42
32 to 42
25.22
180.28
MW-12
203.65
42
32 to 42
NM
NM
MW-13
201.51
40.41
20.41 to 40.41
NM
NM
MW-14
199.44
24.78
14.78 to 24.78
NM
NM
MW-15
195.34
24.5
14.5 to 24.5
NM
NM
MW-16
191.42
14.87
4.87 to 14.87
NM
NM
MW-17
200.99
40.9
21.37 to 40.90
29.40
171.59
MW-18
198.70
21
11 to 21
NM
NM
MW-19
191.07
25.78
15.78 to 25.78
NM
NM
MW-20
198.53
42
32 to 42
NM
NM
MW-21
189.09
40
30 to 40
22.70
166.39
MW-22
182.64
37
22 to 37
NM
NM
DW-1
200.54
70
60 to 70
31.59
168.95
DW-2
196.53
96
86 to 96
27.76
168.77
DW-3
199.23
87
77 to 87
24.96
174.27
DW-4
207.83
98
83 to 98
NM
NM
DW-5
197.98
99
89 to 99
NM
NM
NM = Well not measured, not accessible
Top -of -casing elevations referenced to arbitrary site datum of 200.00 feet
Duncklee Dunham Job No. 02600 Page 1 of 1 Water Levels -Field Data March-05

Table 2c. Water Level Data, August 9, 2005.
Well
Top of Casing
Elevation
(ft)
Well Depth
Below Grade
(fQ .
Screen Interval
Below Grade
(ft)
Depth to
Water
(ft)
Ground Water
Elevation
(ft)
MW-1
195.69
45.5
25.5 to 45.5
27.74
167.95
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
27.55
171.56
MW-4
207.50
52
32 to 52
NM
NM
MW-5
200.53
52
32 to 52
NM
NM
MW-6b
205.35
46
26 to 46
NM
NM
MW-7
199.26
30
20 to 30
NM
NM
MW-8
204.65
50
30 to 50
29.94
174.71
MW-9
175.17
15.71
10.71 to 15.71
NM
NM
MW-10b
207.61
38.5
18.5 to 38.5
31.68
175.93
MW-11
205.50
42
32 to 42
27.07
178.43
MW-12
203.65
42
32 to 42
NM
NM
MW-13
201.51
40.41
20.41 to 40.41
NM
NM
MW-14
199.44
24.78
14.78 to 24.78
NM
NM
MW-15
195.34
24.5
14.5 to 24.5
NM
NM
MW-16
191.42
14.87
4.87 to 14.87
NM
NM
MW-17
200.99
40.9
21.37 to 40.90
32.26
168.73
MW-18
198.70
21
11 to 21
NM
NM
MW-19
191.07
25.78
15.78 to 25.78
NM
NM
MW-20
198.53
42
32 to 42
NM
NM
MW-21
189.09
40
30 to 40
25.00
164.09
MW-22
182.64
37
22 to 37
NM
NM
DW-I
200.54
70
60 to 70
34.03
166.51
DW-2
196.53
96
86 to 96
30.16
166.37
DW-3
199.23
87
77 to 87
27.14
172.09
DW4
207.83
98
83 to 98
NM
NM
DW-5
197.98
99
89 to 99
NM
NM
NM = Well not measured, not accessible
Top -of -casing elevations referenced to arbitrary site datum of 200.00 feet
Duncklee Dunham Job No. 02600 Page 1 of 1 Water Levels -Field Data Aug-05

fable 2d. NN ater Level Data, December 5, 2005.
Well
Top of Casing
Elevation
(ft)
"ell Depth
Below Grade
(ft)
Screen Interval
Below Grade
(ft)
Depth to
NNater
A
Ground Water
Elevation
(ft)
MW-1
195.69
45.5
25.5 to 45.5
29.66 166.03
MW-2b
198.78
44
24 to 44
NM NM
NM-3
199.11
46.5
26.5 to 46.5
29.78 169.33
MW-4
207.50
52
32 to 52
32.07 175.43
MW-5
200.53
52
32 to 52
22.64 177.89
MW-6b
205.35
46
26 to 46
32.68 172.67
MW-7
lW26
30
20to30
28.39 170.87
NW-8
204.65
50
30 to 50
32.36 172.29
MW-9
175.17
15.71
10.71 to 15.71
DRY DRY
MW-10b
207.61
38.5
18.5 to 38.5
34,10 173.51
MW-11
205.50
42
32 to 42
29.69 175.81
MW-12
203.65
42
32 to 42
27.76 175.89
NM-13
201.51
40.41
20.41 to 40.41
29.22 172.29
MW-14
199.44
24.78
14.78 to 24.78
DRY DRY
MW-15
195.34
24.5
14.5 to 24.5
DRY I DRY
MW-16
191,42
14.87
4.87to14.87
DRY I DRY
MW-17
200.99
40.9
21.37 to 40.90
28.12 17287
MW-18
198.70
21
11 to 21
DRY DRY
MW-19
191.07
25.78
15.78 to 25.78
DRY DRY
MW-20
98.53
:89.09
42
32 to 42
30.29 168.24
MW-21
40
30 to 40
25.65 163.44
MW-22
182.64
37
22 to 37
21.09 161.55
DW-1
200.54
70
60 to 70
35.23 165.31
DW-2
196.53
96
86 to 96
31.33 165.20
DW-3
199.23
87
77 to 87
29.39 169.94
DW4
207.83
98
83 to 98
33.91 173.92
DW-5
197.98
99
89 to 99
32.47 165.51
NM = Well not measured, not accessible
Topo casing elevations referenced to arbitrary site datum of200.00 feet
MW-1. MW-4, MW-7, MW-20, MW-22 were measured on 4120105
Duncklee Dunham Job No. 02600 Page I of 1 Water Levels -Field Data 12-05

Table 2a. Water Level Data, April 11, 2006.
Well
Top of Casing
Elevation
(ft)
Well Depth
Below Grade
(ft)
Screen Interval
Below Grade
(ft)
Depth to
N'ater
(ft)
Ground Rater
Hlevation
(ft)
MW-1 •
195.69
45.5
25.5 to 45.5
27.01
168.68
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
27.24
171.87
MW4 •
207.50
52
32 to 52
29.18
178.32
MW-5
200.53
52
32 to 52
2039
180.14
MW-6b
205.35
46
26 to 46
30.01
175.34
MW-7 *
199.26
30
20 to 30
25.72
173.54
MW-8
204.65
50
30 to 50
29.54
175.11
MW-9
175.17
15.71
10.71 to 15.71
DRY
DRY
MW-10b
207.61
38.5
18.5 to 38.5
31.04
176.57
MW-11
205.50
42
32 to 42
27.88
177.62
MW-12
203.65
42
32 to 42
25.21
178.44
MW-13
201.51
40.41
20.41 to 40.41
26.53
174.98
MW-14
199.44
24.78
14.78 to 24.78
DRY
DRY
MW-15
195.34
24.5
14.5 to 24.5
DRY
DRY
MW-16
191.42
14.87
4.87 to 14.87
DRY
DRY
MW-17
200.99
40.9
21,37to40.90
30.95
170.04
MW-18
198.70
21
11 to 21
DRY
DRY
MW-19
191.07
25.78
15.78to25.78
25.3
165.77
MW-20 *
198.53
42
32 to 42
27.78
170.75
NW-21
189.09
40
30 to 40
24.03
165.06
MW-22 *
182.64
37
22 to 37
19.3
163.34
DW-1
200.54
70
60to70
33.25
167.29
DW-2
196.53
96
86 to 96
29.47
16Z06
DW-3
199.23
87
77 to 87
27.08
172.15
DW-4
207.83
98
83 to 98
31.47
176.36
DW-5
197.98
99
89 to 99
30.16
167.82
*Water levels were measured on 3-22-2006
NM = Well not measured not accessible
Topaf-casing elevations referenced to arbitrary site datum of 200. 00 jeer
Duacklee Dunham Job No. 02600 Page 1 of I Water Levels -Field Data April-06

Table 2b. Water Level Data, October 10, 2006.
Well
Top of Casing
Elevation
(ft)
Well Depth
Belot, Grade
(ft)
Screen Interval
Below Grade
(fo
Depth to
Water
(ft)
Ground Water
Elevation
(ft)
M1;-I
195.69
1S5
25.5to45.5
29.22
16647
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46 5
26.5 to 46.5
29.96
169 15
MW-4
207.50
52
32 to 52
31.02
176.48
MW-5
200.53
52
32 to 52
22.21
178.32
MW-6b
205.35
46
26 to 46
32.71
172.64
MW-7
lW26
30
20to30
26.81
172.45
MW-8
204.65
50
30 to 50
31.24
173.41
MW-9
175.17
1571
10.71 to 15.71
DRY
DRY
MW-10b
207.61
38 5
18.5 to 38.5
34.61
173.00
MW-11
205.50
42
32 to 42
27.22
178.28
MW-12
203.65
42
32 to 42
28.07
175.58
MW-13
201.51
40 41
20.41 to 40.41
29.56
17195
MW-14
199.44
24.78
14.78 to 24.78
DRY
DRY
MW-15
195.34
24.5
14.5 to 24.5
DRY
DRY
MW-16
191.42
14.87
4.87 to 14.87
DRY
DRY
MW-17
200.99
40.9
21.37 to 40.90
34.52
166.47
MW-18
198.70
21
11to21
DRY
DRY
MW-19
191.07
25.79
15.78 to 25.78
25.39
165.68
MW-20
198.53
42
32 to 42
29.92
168.61
MW-21
199.09
40
30to40
26.19
162.90
MW-22
182.64
37
22 to 37
21.10
161.54
DW-I
200.54
70
60 to 70
36.17
164.37
DW-2
196.53
46
86 to 96
31.92
164.61
DW-3
199.23
87
77 to 87
29.61
169.62
DW-4
207.83
1)8
83 to 98
34.23
173.60
DW-5
197.98
9e
89 to 99
32.99
164.99
Water Levels -Field Data Oct-06

Table 2c. eater Level Data, April 17. 2007.
Well
Top of Casing
Elevation
ft
Well Depth
Below Grade
ft
Screen Interval
Below Grade
ft
Depth to
Water
It
Ground Water
Elevation
ft
MW-1'
195.69
45.5
25.5 to 45.5
25.80
169.89
MW-2b
198.78
44
24 to 44
NM
NM
NW-3
199.11
46.5
26.5 to 46.5
25.12
173.99
MW4 *
207.50
52
32 to 52
27.48
180.02
MW-5
200.53
52
32 to 52
18.11
182.42
MW-6b
205.35
46
26 to 46
27.79
177.56
MW-7 '
199.26
30
20 to 30
24.07
175.19
MW-8
204.65
50
30 to 50
27.86
176.79
MW-9
175.17
15.71
10.71 to 15.71
13.12
162.05
MW-10b
207.61
38.5
18.5 to 38.5
29.49
178.12
MW-11
205.50
42
32 to 42
21.82
183.68
MW-12
203.65
42
32 to 42
22.72
180.93
MW-13
201.51
40.41
20.41 to 40.41
24.57
176.94
MW-14
199.44
24.78
14.78 to 24.78
DRY
DRY
MW-15
195.34
24.5
14.5 to 24.5
DRY
DRY
MW-16
191.42
14.87
4.87 to 14.87
DRY
DRY
MW-17
200.99
40.9
21.37 to 40.90
25.34
175.65
MW-18
198.70
21
11 to 21
DRY
DRY
MW-19
191.07
25.78
15.78 to 25.78
24.37
166.70
MW-20 r
198.53
42
32 to 42
25.90
172.63
MW-21
189.09
40
30 to 40
22.22
166.87
MW-22 w
182.64
37
22to 37
18.54
164.10
DW-1
200.54
70
60 to 70
33.25
167.29
DW-2
196.53
96
86 to 96
29.47
167.06
DW-3
199.23
87
77 to 87
27.08
172.15
DW4
207.83
98
83 to 98
31.47
176.36
DW-5
197.98
99
89 to 99
30.16
167.82
DW-I
200.54
70
60 to 70
31.43
169.11
DW-2
196.53
96
86 to 96
27.69
168.84
DW-3
199.23
87
77 to 87
25.16
174.07
DW4
207.83
98
83 to 98
31.69
176.14
DW-5
197.98
99
89 to 99
28.01
169.97
*Water levels were collected on 4-3-2007
NM = Well not measured, not accessible
Top flcasing elevations referenced to arbitrary site datum of 200. 00 feet
P:\Kayser-Roth\Asheboro-02600\DWQ Phase\ExM\2007 Data\Water Levels -Field Data April-07 Page 1 of l

Table 2. Water Level Data, October 8, 2007.
Nell16 '
MW-1
Top of Casing
Elevation
195.69
Well Depth
Below Grade
Screen Interval
Below Grade
Depth to
Water
Ground Water
Elevation
45.5
25.5to45.5
32.34
MW-2b
198.78
44
24 to 44
NM
NM
MW-3
199.11
46.5
26.5 to 46.5
32.45
166.66
MW4
207.50
52
32 to 52
34.74
172.76
bfW-5
200.53
52
32 to 52
26.11
174.42
MW-6b
205.35
46
26 to 46
35.02
170.33
MW-7
199.26
30
20to30
DRY
DRY
MW-8
204.65
52
30to50
34.89
169.76
MW-9
175.17
15 71
10.71 to 15.71
DRY
DRY
MW-10b
207.61
38.5
18.5 to 38.5
DRY
DRY
n1W-11
205.50
42
32to42
31.78
173.72
MW-12
203.65
42
32to42
30.74
172.91
MW-13
201.51
40.41
20.41to40.41
31.95
169.56
MW-14
199.44
24.78
14.78to24.78
DRY
DRY
MW-15
195.34
24.5
14.5 to 24.5
DRY
DRY
MW-16
191.42
14.87
4.87 to 14.87
DRY
DRY
MW-17
200.99
40.9
21.37 to 40.90
36.71
164.28
MW-18
198.70
21
11 to 21
DRY
DRY
MW-19
191.07
25.78
15.78 to 25.78
DRY
DRY
\fW-20
198.53
42
32to42
33.23
165.30
MW-21
189.09
40
30 to 40
29.06
160.03
MW-22
182.64
37
22 to 37
25.23
157.41
DW-1
200.54
70
60 to 70
38.61
161.93
DW-2
196.53
U6
86 to 96
34.56
161.97
DW-3
199.23
87
77 to 87
31.81
167.42
DW 4
207.83>8
83 to 98
35.71
172.12
DW-5
197.98
99
89.99
35.28
162.70
NM - Well not measured, not accessible
7bp-oJ=casing ele-ti.-- referenced to.,ha p site datum of200.00feet
PAKayam-RothWsheboro-02600\DWQ Phm\Exce1t2007 DatsMater Levels -Field Data Oct-07 Page 1 of 1

Table 3. Ground Water Inorganics Laboratory Analytical Data, November 20-26, 2003.
Well
Manganese
(mg/L)
Chromium
(mg/L)
Chloride
(mg/L)
MW-1
0.14
<0.002
120
MW-3
0.028
<0.002
19
MW-6b
0.48
<0.002
220
MW-8
0.91
<0.002
850
MW-10b
0.22
0.0054
4.6
MW-12
0.012
0.0026
2.9
NM-17
2.4
0.019
1-
MW-21
0.0094
<0.002
26
DW-2
9.3
0.12
130
DW-3
<0.005
<0.002
77
21, Standard
0.05
0.05
250
m&L = Parts per million or ppm
Duncklee Dunham Job No. 02600 Page 1 of 1 02600.x1s

Table 3. Ground Water Inorganics Laboratory Analytical Data, May 24-28, 2004.
Well
Manganese
(mg/1.)
Chromium
(mg/L)
Chloride
(m /1.)
M W-1
0.14
<0.002
130
M W -3
0.021
<0.002
29
MW-6b
0.47
<0.002
390
MW-8
1.3
<0.002
1,300
MW-10b
0.26
0.0033
<5
MW-12
0.03
0.0044
<
MW-17
35
0.024
20
MW-21
0.024
<0.002
23
DW-2
0.016
0.075
160
DW-3
<0.005
<0.002
100
mg/L = Parts per million or ppm
Duncklee Dunham Job No. 02600 Page 1 of I Semiannual Tables Oct 04

Table 3. Ground Water Inorganics Laboratory Analytical Data, May 23-26, 2005.
Well
Manganese
(mg/L)
Chromium
(mg/L)
Chloride
(mg/L)
Chemical Oxygen Demand
(mg/L)
MW-3
0.047
<0.010
13
<20
MW-6b
0.37
<0.010
170
<20
MW-8
1.4
<0.010
580
30
MW-9
0.12
<0.010
27
<20
MW-10b
730
<0.010
<50
6100
MW-11
0.019
<0.010
2.8
<20
MW-13
0.57
<0.010
2.7
<20
MW-17
0.53
0.023
5.2
<20
MW-19
0.65
<0.010
2.4
<20
MW-21
0.023
<0.01
16
<20
DW-I
<0.010
0.014
14
<20
DW-2
<0.010
0.022
98
<20
DW-3
0.03
<0.010
65
<20
DW-4
0.14
<0.010
13
<20
DW-5
0.029
<0.010
52
<20
mg/L = Parts per million or ppm
Duncklee Dunham Job No. 02600 Page I of 1 Water Levels -Field Data May-05

Table 4. Field Measured Ground Water Data, November 20-26, 2003.
Well
Temperature
(Deg. Celsius)
p11
(Stan(ard ! nits)
Conductivity
(us)
ORP
(MV)
Dissolved Oxygen
(mg/L)
MW-I
21.5
4.8
354
387
6.05
MW-3
18.3
3.6
71
674
6.59
MW-6b
18.3
2.5
741
455
7.32
MW-8
17.7
1800
565
7.73
MW-10b
17.3
?- I
23
473
5.74
MW-12
17.1
44
35
440
6.11
MW-17
NM
4.o
56
492
NM
MW-21
17.7
130
382
4.43
DW-2
NM
4.�
434
648
NM
DW-3
19.7
285
331
6.59
mg/L = Parts per million or ppm
NM = Not measured due to presence ojpoiassium permanganate
ORP = Oxidation Reduction Potential
Duncklee Dunham Job No. 02600 Page 1 of 1 02600.xis

I able 4. Field Measured Ground Water Data, May 24-28, 2004.
Well
T emperature
(Dcg. Celsius)
pH
(Standard t nits)
ConductivitN
(us)
ORP
(mV)
Dissolved Oxygen
(mg/L)
MW-1
21.6
5.1
307
270
7.98
MW-3
19.1
5.5
89
700
7.24
MW-6b
20
5.1
864
360
7.45
MW-8
18.5
4.7
1926
720
8.33
MW-10b
18.3
5
20
675
6.43
MW-12
17.8
: 4
39
270
5.76
MW-17
18.3
5 4
155
752
NM
MW-21
18.2
5.7
147
255
4.18
DW-2
20
6,6
429
238
8.23
DW-3
19.9
6-5
33?
232
6.01
mg/L = Parts per million or ppm
NM = Not measured due to presence of potassimn permanganate
ORP = Oxidation Reduction Potential
Duncklee Dunham Job No. 02600 Page I of I Semiannual Tables Oct 04

Table 3a. Field Measured Ground Water Data, March 3, 2005.
NN ell
Temperature
(De,. Celsius)
p1l
(Standard t nits)
Coil ducticit'N
(µS4ut)
ORP
(IIIN
Dissolved Oxygen
(mg/L)
MW-3
17.8
5.1
75
321
6.9
MW-6B
NS
NS
NS
NS
NS
MW-8
17.8
4.5
206
407
8.2
MW-9
NS
NS
NS
NS
NS
MW-10b
17.2
5.4
24
318
8.0
MW-11
16.0
5.9
86
234
6.0
MW-13
NS
NS
NS
NS
NS
MW-17
16.6
5.4
46
498
8.1
MW-19
NS
NS
NS
NS
NS
MW-21
16.6
5.7
128
273
4.5
DW-1
18.0
6.8
162
302
7.0
DW-2
19.1
6.1
371
227
8.3
DW-3
19.1
6
278
222
6.7
DW-4
NS
NS
NS
NS
NS
DW-5
17.5
6.14
234
128
5.6
mg,L -Paris per million orppm
NM = Not measured due to presence of potassium permanganate
ORP = Oxidation Reduction Potential
NS = Not sampled
Duncklee Dunham Job No. 02600 Page 1 of 1 Water Levels -Field Data March-05

Table 3b. Field Measured Ground Water Data, May 23-26, 2005.
A cll
Temperature
(Deg. Celsius)
pH
(Standard l nits)
Conductivity
(µSleet)
ORP
(III V)
Dissolved Oxygen
(mg/L)
MW-3
18.3
5.23
75
302
6 6
MW-6B
18.4
4.85
667
362
0 v
MW-8
17.9
4.57
2010
415
8
MW-9
18.1
4.49
135
300
MW-IOb
NM
NM
NM
NM
NN1
MW-11
17.5
6.13
103
223
6 3
MW-13
16.9
5.8
44
236-�
MW-17
16.9
5.49
54
421
7 S
MW-19
19.8
5.63
32
268
S_8
MW-21
17.4
5.86
131
243
4.9
DW-I
18.4
7.31
162
169
7 2
DW-2
20
6.25
407
196
76
DW-3
19.4
6.37
291
211
6 7
DW-4
18.7
6.43
110
221
9
DW-5
17.5
6.14
234
128
5.6
mg = Parts per million or ppm
NM = Not measured due to presence ofpotassium permanganate
ORP = Oxidation Reduction Potential
Duncklee Dunham Job No. 02600 Page 1 of I Water Levels -Field Data May-05

Table 3c. Field Measured Ground Water Data, August 9, 2005.
�� 11
Temperature
(Deg. Celsius)
pH
(Standard units)
Conductivity
(µs/em)
ORP
Dissolved Oxygen
(ing/L)
MW-3
19.6
5.37
140
280
6.44
MW-6B
NS
4.85
667
362
6.90
MW-8
18.5
4.58
167
385
7.45
MW-9
NS
NS
NS
NS
NS
MW-10b
NM
NM
NM
NM
NM
MW-11
17.7
5.58
94
270
5.13
MW-13
NS
NS
NS
NS
NS
MW-17
17.5
5.34
77
558
7.24
MW-19
NS
NS
NS
NS
NS
MW-21
18.1
5.33
134
182
4.75
DW-1
19.5
6.25
235
164
6.61
DW-2
21.8
5.73
379
182
6.90
DW-3
19.7
5.45
303
190
6.42
DW-4
NS
NS
NS
NS
NS
DW-5
17.5
6.14
234
128
5.60
mg/L = Parts per million or ppm
NM = Not measured due to presence ofpotassium permanganate
ORP = Oxidation Reduction Potential
Duncklee Dunham lob No. 02600 Page I of I Water Levels -Field Data Aug-05

"Fable 3d. Field Measured Ground Water Data, December 5, 2005.
N� ell
Temperature
(Deg. Celsius)
pH
(Standard units)
CondUctiN ity
(us)
ORP
(no
Dissolved Oxygen
(mg/L)
MW-3
17.5
5.72
472
242
4.61
MW-6B
17.8
5.06
305
271
4.47
MW-8
17.2
4.55
331
394
5.50
MW-9
18.1
4.49
135
300
5.50
MW-10b
NM
NM
NM
NM
NM
MW-11
15.9
5.93
535
186
3.94
MW-13
16.4
5.75
161
187
5.47
MW-17
NM
NM
NM
NM
NM
MW-19
19.8
5.63
32
268
8.80
MW-21
16.7
5.84
8840
190
1.48
DW-1
18.0
6.76
580
160
4.66
DW-2
18.7
6.19
1080
207
5.28
DW-3
19.0
6.17
7440
173
4.65
DW-4
17.8
6.25
598
221
7.15
DW-5
16.7
5.82
600
146
3.83
mg/L = Parts per million or ppm
NM = Not measured due to presence of potassium permanganate
ORP = Oxidation Reduction Potential
Duncklee Dunham Job No. 02600 Page I of 1 Water Levels -Field Data 12-05

Table 3a. Field Measured Ground Water Data, April 11, 2006.
Well
Temperature
(Deg. Celsius)
pH
(Standard Units)
Conductivity
(PS/cm)
ORP
(mV)
Dissolved Oxygen
(mg/L)
Colorimeter
(mg/L)
MW-3
18.5
5.56
118
243
6.50
MW-613
19.1
5.09
195
330
6.66
MW-8
17.7
4.64
221
492
8.76
MW-10b
18.2
4.62
>9999
737
3.21
145.0
MW-13
16.7
6.70
394
222
7.23
MW-17
17.2
4.53
274
514
8.13
0,0
MW-21
17.2
6.20
330
237
3.17
D W-1
18.0
6.93
219
171
6.57
DW-2
18.8
6.43
179
180
6.99
D W-3
19.1
7.17
464
170
5.66
D W-4
17.9
7.20
638
204
7.25
DW-5
16.9
6.70
440
162
5.27
Blank Cell=No Data
mg/L = Parts per million or ppm
ORP = Oxidation Reduction Potential
µS/cm=microseimens per centimeter
Duncklee Dunham Job No. 02600 Pagc I of I Water Levels -Field Data April-06

Table 3b. Field Measured Ground Water Data, October 10, 2006.
Well
Temperature
(Deg. Celsius)
pH
(Standard Units)
Conductivity
(PS/CM)
ORP
(mV)
Dissolved Oxygen
(mg/L)
Colorimeter
(mg/I,)
MW-3
18.3
6.27
17.6
41)
7.49
II.4
MW-613
18.2
5.62
90.0
79
6.84
MW-8
18.3
6.27
40.9
41
7.43
0.4
MW-10b
19.9
3,9.5
702
>19.99
134.5
MW-11
18.0
6.29
34.6
47
6.26
0.2
MW-13
16.5
3.53
82.0
177
9.77
0.8
MW-17
16.6
64.6
601
10.34
2.8
MW-21
18.3
6.31
31.3
49
2.49
0.4
DW-1
18.1
7.00
48.4
17
7.17
2.3
DW-2
18.8
6.16
65.2
54
8.32
0.2
DW-3
19.5
6.68
59.2
33
7.44
0.0
DW-4
18.0
6.39
16.9
47
11.30
0.4
DW-5
16.9
6.73
20.5
1 9
6.36
0.0
Blank Cell =No Data
mg/L = Parts per million or ppm
µS/cm=microseimem per centimeter
OPP = Oxidation Reduction Potential measured in millivolts
Duncklee Dunham Job No. 02600 Page I of 1 Water Levels -Field Data Oct-06

Table 3c. Field Measured Ground Water Data, April 17, 2007.
NN ell
Temperature
(Deg. Celsius)
pH
(Standard Units)
Conductivity
(PS/CM)
ORP
(mV)
Dissolved Oxygen
(mg/L)
Colorimeter
(mg/L)
MW-3
18.0
7.71
94
99
6.48
0.6
MW-613
18.2
6.27
655.0
276
6.29
().1
MW-8
17.5
1.58
1,700
754
11.91
1.4
MW-10b
17.4
1.32
900
801
13.93
1 �OJ)
MW-13
17.3
7.81
60.0
102
9.10
0.7
MW-17
16.9
5.16
48
412
7.87
0.0
MW-21
17.4
7.85
174
96
4.87
0.0
DW-I
18.1
7.86
239
88
7.01
0.4
DW-2
18.8
7.70
597
102
7.75
1.6
D W-3
19.2
7.79
410
97
7.09
().2
D W-4
17.9
7.76
209
90
9.40
() IS
DW-5
16.9
7.95
302
87
6.69
0.0
mg1L = Parts per million or ppm
µNcm=microseimens per centimeter
ORP = Oxidation Reduction Potential measured in millivolts
Duncklee Dunham Job No. 02600 Page I of 1 Water Levels -Field Data April-07

Table 3. Field Measured Ground Water Data, October 2007.
Well
'temperature
(Deg. Celsius)
pH
(Standard Units)
Conductivity
(pS/cm)
ORP
(mv)
Dissolved Oxygen
(mg/L)
Colorimeter
(mg/L)
MW-3
18.9
5.76
102
276
5.10
0.43
MW-613
19.1
5.01
327.0
327
5.39
0.00
MW-8
18.6
5.10
132
604
9.98
1.40
MW-10b
DRY
DRY
DRY
DRY
DRY
DRY
MW-13
17.1
5.55
530.0
271
6.88
0.38
MW-17
19.1
5.57
46
419
7.58
0.22
MW-21
17.5
5.80
980
271)
3.84
0.01
DW-1
18.4
6.77
155
215
4.35
0.00
DW-2
19.3
6.16
436
236
5.31
0.00
DW-3
11).)
6.10
273
209
5.41
0.20
DW-4
18.4
6.14
117
239
6.21
0.98
DW-5
17.0
5.75
191
226
4.83
0.06
mg/L = Parts per million or ppm
µNcm=microseimens per centimeter
ORP = Oxidation Reduction Potential measured in millivolts
Duncklee Dunham Job No. 02600 Page 1 of 1 Water Levels -Field Data Oct-07

Wooded Area
NAV-22 R
r
Burmil Road (SR 1500
to
Wooded
T,TW-5"
Boiler
House
— Fence
1\1W-2b y
DW-3
(76J
Main
Plant
Building
Electrical Substation
Parking
T.ot
— — —
Property Line
X
Fence Line
bfW-16
Saprolite Unit Well
® DW-3
Bedrock Unit Well
®--®
Cross Section Line
(390)
PCE Concentration in ppb
(BDL)
Below Labratory Detection Limit
(NS)
Not Sampled
Supported
ny p„t. In f—d
PCE Concentration 1,000-10,000 ppb
® ®
PCE Concentration 100-1,000 ppb
0 0
PCE Concentration 10-100 ppb
■ ®
PCE Concentration BDL-10 ppb
0 100' 200'
Graphic Scale: 1" = 100'
�n
0
o
N
U
w
�
O �
a~
ai
•Y � U
L;
ti.
Q
O
QI
II
Cz
.�
�
rn
Figure
0
•

MW-5 &
1.
S, MW-12
Wooded Area 1� ® Water
MW-11 Towers
Estimated Impacted
Source Area MW-4
1 9 A!
Brick DW-4
Residential h1W-13 0 ` T 'MW-10b (131JL)
Home O
MW-g hIVU-6b
Pump
Brick
MW-22 ® MW-21 / House -T
h W-14
Garage M W-3
rb
f2 hIW-18�
DW-I
rb
Boiler
Mobile House
Homes DW-2
h1W-20
MW-1
11
nn
DW
Trailer Park (,.h)
1
4P
NIA'-19
4' hIW-16 1,
1
1
0 1
Tv Fence
Burn,, Road (SR 1500
Wooded
Maui
Plant
Building
Electrical Substation
ISA
DW-3
— — —
X x
Property Line
Fence Line
® bIW-16
Saprolite Unit Well
® DW-3
Bedrock Unit Well
3 —@
Cross Section Line
(390)
PCE Concentration in ppb
BDL)
Below Labratory Detection Limit
(Ns)
Not Sampled
Supported
by Data inferred
0
PCE Concentration 1,000-10,000 ppb
■ ®
PCE Concentration 100-1,000 ppb
Parking
T,ot
PCE Concentration 10-100 ppb
■ ®
PCE Concentration BDL-10 ppb
0 100, 200'
Graphic Scale: 1" = 100'
O
O
N
r�
a�
U
N
Q
N o
R
p; �z
o
N
V4
O d
.�
U ,,O
�-
0
U
u
a
U
��
o
Figure
Z,

Wooded Area
MW-22 S
® Water
MW_1O Towers
Estimated Impacted
Source Area MW'-4
S
19
Brick P• t DW-4
Residential
LVRV-13 S Pr PJG'-10b
Home
• t_
Pt 6
MW'-17
N ,8•Pt8
MW-6b
Pt 10
P1 ` Pump
A1W-21 S House
Brick
Garage 1- SMW-14 D '-3
IvIW'-18
& ❑
DW'-1
Mobile
Homes ® DW-2
MW-1
DW-5
Trailer Park
IvAV-19
MW-16
n
0
B iel Road (SR 1500
MW'-O'
ASTs
C
Boiler
House
S
-is
DW-3
DUNCKLEE
r i�r
C�. Dvly �M
T,..- ff1�AL-s`rLr''"02
511 �[9.ESt LiUVE - SVIiE 10]
UTICE 1019)35$-9598
cnar. I+M UMUNI nOM
WEB Ewr+criEErvt+tuaca�t
Job No.
Layers
Date
02600
0, 1, 34
1/28/2008
Drawing
Figure
Scale
02600-1
10
As Shown
Title Site Plan with Water Injection Point Locations
September 24-27, 2007
Project Kayser Roth Facility
Asheboro, North Carolina
Main
Plant
Building
Electrical Substation
1
— Fence Parking
Lot
Legend
Property Line
X---X
Fence Line
&ff-16
Saprolite Unit Well
5%oDW-3
Bedrock Unit Well
R g
Cross Section Line
Water Injection Point
Scale
90 45 0 90 180
1 "=90'

Wooded Area
Icy
MW-22
(157.41)
MW-12
(172.Q1
Water
11 Towers
Estimated ImpacteJ71 is
Source Area (17 . 1)O M��'-4 —
(172.76)S
16' '
Brick 10 DW-4
Residential MW-13 9 -10b
Home (169.56) 1 DRY)
1633
MW-17�
(164.28) 1-8 � Mom'-6b
161 � 61 (170.3�
Pump
MW-21 House
i160.03)
Garage I MW-14
(MW 18 (DRY) k 3
I r,1.
CA
w DW-1
cn
n
Mobile
Homes + (D S ®DW-2
MW-20e-]- S(I3.35)
165.30) MW-1
DW-5 I ,
Trailer Park
NRV-19
(DRY)
e MW-16
n
0 0
8'In1v1 Road (sR 1500)
Mtn-5&
DUNCKLEE
& DUNI IAM
E 'T'ONNENTAL CONSUL7AMTS
51It�LSLERLRNE - SUITE 102
CARP, r+oRTM CAROLQJA 2751!
ICE(174.42) WWED DUWKUlU)UN WC M
Job No.
Layers
Date
02600
0, 1, 35
1/28/2008
Drawing
Figure
scale
02600-1
11
As Shown
it e
Saprolite Ground Water Contour Map
October 8, 2007
ASTs
—I
Project Kayser Roth Facility
Asheboro, North Carolina
165 I Boiler
House
� Fence
Dom'-2bAV
DW-3
Main
Plant
Building
Electrical Substation
Parking
Lot
Legend
Property Line
Xz----<
Fence Line
.NM-16
Saprolite Unit Well
NDW-3
Bedrock Unit Well
&�
Cross Section Line
(175.33)
Ground Water Elevation in Feet
Ground Water Contour Line in Feet
Inferred Ground Water Contour Line
Ground Water Flow Direction
Not Measured
Note: The average hydraulic gradient across the
site is 0.03 ft/ft based on well pair distances
between MW-11 to MW-13, MW-17 to MW-21,
and MW-3 to MW-1
Scale
90 45 0 90 180
1 11=90'

Wooded Area
NINX'-22 (110
n
w
Brick
Residential
Home
D
NIW-21 1:1
Brick
Garage
Q5
Mobile
Homes
Estimated Impacted
Source Area -,_
MW-12
® Water
MW-11 Towers
SO
MNV-4
(172.12)19
DW-4
M\TV -5 &
DUNCKLEE
^ -I LA` -
� UUN M
& DU
ENVM MENTAL CONSULTANTS
:11 KEOMER DRIVE - SUITE 102
CARP, NOR1N CARO 9) 55 2751:
�TIQ 19J9)!Si-9693
WEB r-utr UMUIVAM COM
Job No.
Layers
Date
02600
0,36
1/28/2008
Drawing
Figure
Scale
02600-1
12
As Shown
Title Bedrock Unit Ground Water Contour Map
October 8, 2007
,STs
Project Kayser Roth Facility
Asheboro, North Carolina
MRY1-139 7 -10b 172
' 17 171 Legend
MW-17 & Property Line
169 - MWI-6b
1G7 169 �-�( Fence Line
166 Main
mp Plant
165 e \ Building1vIW-16 Saprolite Unit Well
�NiW 1464 �/- T\M�-2b6 19DW-3 Bedrock Unit Well
NIVV'-18 � 63 —
® (161.93 Electrical Substation @—� Cross Section Line
DW-1 175.33) Ground Water Elevation in Feet
Ground Water Contour Line in Feet
Boile
DW-2 Hous$ N11G'-29 (167.42) \ Inferred Grotmd Water Contour Line
&
��U,1.97j i ® �_
MVi'-20 -1- I DW-3
0 MAN'-1 16r, 167 Ground Water Flow Direction
DW-5 O
Trailer Park 1 1 6_ -,
Not Measured
Note: The average hydraulic gradient across the
� g Y
M\V-19 site is 0.04 ft/ft based on well pair distances
between DW-2 to DW-3, and DW-I to DW-4
MON
m
Bun2v1 Road (SR 1500
01—
MW-16
Fence
Parking
Lot
Scale
90 45 0 90 180
1 11=901

Wooded Area
Brick
Residential
Home
(<1) (9.7)
P—
rb
w
n
� IMobile
Homes
Iv V'-9
(NS)
9 MW-12
®1) Water
b1N`V-11O Towers
Estimated Impacted
Source Area 1ANV-4
(NS) +Sr
DW-4
-10b
(14.7) DRY)
(23 50) MWI-lb
-- (128) (<1)
Pump
House
(DRY) MW-1
51 �(DR 3
MW-18 (456>
DNV'-2
DINk'-20 -�
(�I) (DRY) MW-1
DNN'-5 1 t I
Trailer Park V
(NS)
MVV-19 (DRY)
a MVi/-16
C:D a
Bunilil Road (SR 1500)
MW-5'9
ASTs
Boiler
House
Fence
1 N"'
(NS_
DN`G'-3
DUNCKLEE
R DUNI iAM
NTS
envve0.Nm.x AVLc-',U, E102
;11 l�tSl.FR DRIVE 9JfTE I0:
ROLM 27,11
CAR
OFFICE '939)!51-908
WEB NORiH C E[)UHH C0M
WEB GVFICYtEmUNSAMCOM
Job No.
Layers
Date
02600
0,37
1/28/2008
Drawing
Figure
Scale
02600-1
13
As Shown
Title PCE Plume in Saprolite Unit,
October 10, 2007
Project Kayser Roth Facility
Asheboro, North Carolina
Main
Plant
Building
Electrical Substation
Parking
Lot
Legend
Property Line
Xz--�
Fence Line
eNM-16
Saprolite Unit Well
19DW-3
Bedrock Unit Well
g
Cross Section Line
(480)
PCE Concentration in ppb
(NS)
Not Sampled
PCE Concentration 1,000-10,000 pp
PCE Concentration 100-1,000 ppb
❑
PCE Concentration 10-100 ppb
PCE Concentration BDL-10 ppb
Scale
90 45 0 90 180
1 t'=90'

Wooded Area
NIV'-22
Brick
Residential
Home
Nf\V-21 ❑
9 Brick
Garage
Mr,-9
Mobile
Homes
,9 MW-12
® Water
bAV_10/1
Towers
W-4
10
W-4
NnV-13 & '-10b (1.1)
NM'-17
N
MW-14
09
IVRV-18
MW-20 je
Doti
Trailer Park
IhRxl-19
�.I
Estimated Impacted
Source Area --�
MW-5 9
ASTs
O
O
MW-6b
Pump
�--House
►'�'-3 I I
MW-2b,�
DLJNCKLEE
R DUN LIAM
ENYTYIONMENTAL CONSULTANTS
5I1 Fv:ISLER GRI'fE - SUITE 102
CAR
CARO
OFFR'E 1919)959-969!
WEB GVIrF]iEDUli{AAICOM
WEB tDUI Z.EEDUJA C0M
Job No.
Layers
Date
02600
0,38
1/28/2008
Drawing
Figure
Scale
02600-1
14
As Shown
it e PCE Plume in Bedrock Unit,
October 10, 2007
Project Kayser Roth Facility
Asheboro, North Carolina
Main
Plant
Building
Electrical Substation
IC MW-16
c:: Fence Parking
Lot
Bu""'i' Road (SR 1500)
Legend
Property Line
X4 ----- — X
Fence Line
AM-16
Saprolite Unit Well
0iDW-3
Bedrock Unit Well
B B
Cross Section Line
(480)
PCE Concentration in ppb
(NS)
Not Sampled
PCE Concentration 1,000-10,000 ppb
O
PCE Concentration 100-1,000 ppb
❑
PCE Concentration 10-100 ppb
PCE Concentration BDL-10 ppb
Scale
90 45 0 90 180
111=90'

U O
U
® S ru O
�z
210 MW-11 Pt-3 MW-10b MW-10c 210 U C C v
— _ Pt-5 Yt-7 t_9 �.n7p_g
Ground Surface DW-1
200-3 DW-2 MW_I 200 ;~ >
.5 190 Clay and Silt Saprolite 190 W
°o to Soft Weathered Rock y
180 —
180 w i
- _..
170
+ + + (T�S) — O ON
160 (128) iG) 160 y r;
+ + + + + + + + + + _rq
150 + + + + + + + + + - — — 150
Q
140 + + + + + + + + + + \+ + + Hard W�eathercd + + + + + + + _ Iv
+ + + + + + + + + + + + + �t Rock to Fractures + + + + + + + — _ _
l30 + + + + + + + + + + + + + d rock + + + + + + + + + + J 130 C
+ + + + + + + + + + + + + + + + + + + + + + + + — �120 �
120 + + + + + + + + + + + +- + + + + + + + + + + + _ N
+ + + + + + + + + + + + + + +� + + + + + + + + + 7+ + + 110 C
110+ + + + + + + + + + + + + + + + +.+ + + + + + + + + + +r
+ + + + + + + + + + + + + + + + + + + + + + + + - + + `100 o c c
100 + + + + + + + + + + + + + + + + + + + + + + +� ` + + + + + +- '' q
90 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - 90 —
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + --+ —� so `
8U
A
legend: h
❑ Well Casing F+�' �i
© Well Screen Approximate Horizontal Scalc V=30'
Vertical Scale as Shuwn 9u }
Approximate Location of Potassium Permanganate Slurry Injection (Phase 111) +�
❑ and Water Injection (Phase IV) F
(3,111, PCE in ug/L (ppb)
[251 TCR Concentration
w Water Table (10-08-07)
PCE Concentration 1,000-10,000 ppb
r..r r..r
■ PCF. Concentration 100-1,000 ppb h..
❑ PCF, Concentration 10-100 ppb Z
J
■ PCE Concentration BDL-t0 ppb z ✓,
Note: Isoconcentration are dashed where inferred ~ ~
r'1
Temporary Injection Point Advanced on September 28, 2007