NCD095458527_20011031_FCX Inc. (Statesville)_FRBCERCLA SPD_April 2001 Sampling for Monitored Natural Attenuation OU-3-OCR

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I 1':\l'R( lJ\ l 8895\ l 8895.( 116\apr-(l 1 winc\'r.doc
April 2001 Sampling for
Monitored Natural Attenuation at
FCX-Statesville Superfund Site OU3
Statesville, North Carolina
prepared for
El Paso Energy Corporation
1001 Louisiana Street
Houston, Texas 77002
October 2001
27-18895.016
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I fn,;,onmental Eng;needng & ConsuWng
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501 Great Circle Road, Suite 150
Nashville, TN 37228
Tel: [phone]
Fax: [phone]
October 31, 2001
Ms. Nancy K. Prince, CGWP
El Paso Corporation
2 North Nevada Ave.
Colorado Springs, CO 80903
27-18895.016
RE: Results of April 2001 Sampling for Monitored Natural Attenuation at
Operable Unit Three (OU3) of the FCX-Statesville Superfund Site
Dear Nancy:
The Record of Decision (ROD) for Operable Unit Three (OU3) at the FCX-
Statesville Superfund Site (the Site) includes monitored natural attenuation (MNA) as
part of the remedy in addition to active source control. Currently, the MNA includes
semiannual groundwater sampling of selected wells for specific parameters as
described in the Remedial Action Work Plan ("Remedial Action Work Plan for
Operable Unit Three, FCX-Statesville Superfund Site, Statesville, North Carolina"
dated July 2000 by Brown and Caldwell). The primary constituents of concern in
OU3 are tetrachloroethene,"also referred to as perchloroethene (PCE), and its
daughter products.
This letter report presents the results of the sixth comprehensive round (Round 6) of
MNA sampling that took place in April 2001. The report also includes results from
groundwater sampling of monitoring wells that arc not routinely sampled as part of
the semiannual MNA sampling. The additional wells were sampled in May 2001
with the exception of one well that was sampled in June 2001. Some of these
additional wells had not been sampled since the Remedial Investigation (RI) in 1994
or 1995.
The previous MNA sampling rounds were as follows:
•
•
•
Round 1 -December 1998 with limited sampling in January 1999. These
results were reported in the pre-design investigation report ("Pre-Design
Investigation Report for Operable Unit Three, FCX-Statesville Superfund
Site, Statesville, North Carolina" dated March 1999 by Brown and
Caldwell).
Round 2 -June 1999. These results were presented and discussed in a
letter report dated December 2, 1999.
Round 3 -December 1999. These results were presented and discussed in
a letter report dated June 14, 2000.
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Ms. Nancy K. Prince
October 31, 2001
Page 2
•
•
Round 4 -June 2000. These results were presented and discussed in a
letter report dated November 10, 2000.
Round 5 -November 2000. These results were presented and discussed in
a letter report dated July 19, 2001.
Active source area remediation of OU3 has begun since the Round 5 MNA sampling
event with the start of the air sparging and soil vapor extraction (AS/SVE)
performance testing. The SVE system was started in early February 2001 and
operated through mid May 2001, which included the time period of the April 2001
Round 6 MNA sampling. Air sparging in the source area was conducted during the
weeks of April 2 and April 12, 2001, prior to the Round 6 sampling. The SVE
system was started again in July 2001 and is currently operating. Active remediation
of the groundwater associated with OUl has been ongoing since 1998. The OUl
system collects and treats shallow groundwater south of the textile plant on the FCX
property.
Following are conclusions from the April, May, and June 2001 sampling; a brief
description of the sampling activities; a compilation of the sampling results; and an
evaluation of the plume stability.
CONCLUSIONS
The following conclusions can be drawn from the current and historical data:
• Generally, the plume is undergoing little change; concentrations may be
increasing in the source area and at a moderate distance from the source
area, particularly to the north, but show no evidence of increase at the
farthest margins of the plume (i.e., the_ dimensions of the plume are not
expanding, in fact, there is evidence to indicate that the groundwater PCE
plume width may be receding, especially on the western edge of the
plume).
• There remains a substantial PCE concentration in the source area at.well
. W-17s. This well is located within the AS/SVE treatment area.
• The presence of daughter products and a generally stable plume at the Site
is compelling primary evidence that the biodegradation component of
natural attenuation is significant and remains relatively unchanged from
previous sampling events.
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Ms. Nancy K. Prince
October 31, 2001
Page 3
•
•
•
The secondary evidence (bioparameter data), though variable and affected
by sampling conditions, supports the conclusion that reductive
dechlorination is occurring.
Results from subsequent sampling events should continue to be evaluated
to identify trends that may develop; there may be trends that potentially
develop as a result of source area treatment. To date, trends have been
difficult to identify because of the relatively small data set for some
monitoring wells (six to eight sets of groundwater data are typically
required to establish a trend). Also, trends have been difficult to identify
because small changes in some parameters are difficult to distinguish from
normal variability in the data, particularly for volatile organic compound
(VOC) data when the concentrations are low (i.e., approaching the
detection limit). Overall, there appear to be few trends in the data. A
generally steady-state plume suggested by the lack of trends is an indication
of natural attenuation.
The conclusions from the previous MNA sampling report indicated that
the on-going MNA evaluation might be assisted by having additional
sample data to include in the analysis. This additional data is included in
this letter report. In particular, it has been useful to have data from the
additional wells that are not included in the regular MNA sampling
program as set forth in the Remedial Action Work Plan. These additional
results have indicated that the groundwater PCE plume width may be
receding, especially on the western edge of the plume. The sampling of the
additional Site wells was performed as a one-time event for the reasons
stated above; it is anticipated that the next semiannual MNA sampling
planned for October 2001 will include only the wells in the regular MNA
sampling program.
DESCRIPTION OF SAMPLING
Sampling of monitoring wells for groundwater quality, including analysis for VOCs
and metals designated by the United States Environmental Protection Agency
(USEPA) and analysis for MNA parameters, was conducted during the period
April 23 through April 27, 2001. The monitoring wells sampled as part of the
semiannual groundwater sampling are listed in Table 1. Two wells, W-22s and
W-22i, were not sampled during the April 2001 sampling event because of
inaccessibility due to the OU2 remedial action work that was in progress. Well
W-12s, was not sampled because of the low water table level that occurred during
that period. Two wells, W-Ss and W-17s, were purged with a bailer (rather than the
prescribed slow-purge technique with a pump) because of the low water table level.
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Ms. Nancy K. Prince
October 31, 2001
Page 4
The samples from these two wells were analyzed for a limited number of parameters
due to the limited volume of groundwater recovered.
Sampling of the additional wells for groundwater quality, including analysis for
VOCs and MNA parameters, was conducted during the period of May 15 through
May 23, 2001 with the exception of well W-15i which was sampled on June 22, 2001.
The additional wells chosen for sampling are listed in Table 2. Two wells, W-4s and
W-13s, were not sampled because of the low water table level that occurred during
that period. Four wells, W-7s, W-11s, W-15s, and W-21s, were purged with a bailer
(rather than the prescribed slow-purge technique with a pump) because of the low
water table level. The samples from these four wells were analyzed for a limited
number of parameters due to the limited volume of groundwater recovered.·
Groundwater from one well, W-16s, was not sampled for dissolved oxygen (DO)·
because of murky water at that location.
The monitoring wells associated with OU3 are shown in Figure 1. Figures 2 and 3
show the shallow and intermediate isoconcentration contours, respectively, for PCE;
the contours have been prepared using data from the April 2001 semiannual MNA
sampling and data from the May and June 2001 additional sampling. The shallow
groundwater PCE contours in the area of the textile plant (see Figure 2) reflect the
PCE results from source area sampling that took place in April 2001 (note that the
data from the source area sampling will be included in the report for the AS/SVE
Performance Test).
The protocols for sampling are the same as previously used including slow-purge
techniques. Details of the sampling method arc described in the document entitled
"Remedial Design Work Plan for Operable Unit Three, FCX-Statesville Superfund
Site, Statesville, North Carolina" dated July 1998 by ECKENFELDER INC. (now
Brown and Caldwell). A summary of the chemical analyses and analytical method
references is given in Table 3. Samples collected from the additional wells in May
and June 2001 were not analyzed for metals or for volatile fatty acids.
The primary constituents of concern in OU3 are PCE and its degradation products.
Additionally, three metals, iron, manganese, and aluminum were previously identified
as exceeding regulatory levels and are included in the MNA sampling program, as are
VOCs and parameters relevant to natural attenuation.
SAMPLING RESULTS
The sampling results for the wells used for MNA and other wells are presented in
Table A-1 in the Appendix. This table presents results from the previous MNA
sampling rounds, from the RI, and from the additional sampling that was performed
in May and June 2001. Table A-1 presents the data in the following order: the VOC
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Ms. Nancy K. Prince
October 31, 2001
Page 5
results, aluminum results, and the bioparameter results, which include iron and
manganese. The first five columns of the table provide monitoring well
identification and information including sampling dates. The VOC data are
organized with the first four columns containing PCE and its degradation (or
daughter) products: trichloroethene (fCE), cis-1,2-dichloroethene (cis-1,2-DCE),
and vinyl chloride. The remaining columns ofVOC data are organized in
alphabetical order. The bioparameter data are grouped into the following four
categories: electron acceptors, products of degradation (including PCE daughter
product ethene), nutrients, and geochemical parameters.
The following summarizes the PCE sampling results according to groundwater zone
(shallow and intermediate) and direction from the source (source area, north, and
south):
Shallow Groundwater Zone:
Source Area. The PCE concentrations from well W-17s have ranged from
42,000 µg/L to 150,000 µg/L and the most recent result is 110,000 µg/L. The
four most recent samples were obtained with a bailer rather than by the slow-
purge method because of low water levels. The range and variability of PCE
concentrations is within that often observed for source areas. The low water
table and sampling method make trend evaluation tenuous. This well is located
within the AS /SVE treatment area.
South Area of Shallow Zone. The PCE concentrations have remained
relatively constant at 190 µg/L to 380 µg/L in W-5s. The PCE concentration
from well W-22s has ranged from 3.6 µg/L to .11 µg/L and, though not
sampled this event, was 5.8 µg/L when last sampled in June 2000. The PCE
concentrations have been relatively constant at less than 2.0 µg/L in the
farthest downgradient well, W-24s. The most recent result for W-24s was
0.47 µg/L. There appears to be no trend in the south area of the shallow
groundwater zone.
North Area of Shallow Zone. The PCE concentrations in W-19s have
ranged from 26 µg/L to 2,200 µg/L and the most recent result was 750 µg/L.
There may be an upward trend in W-19s. PCE concentrations have trended
upward from 3 µg/L to 100 µg/L in W-20s; and have remained less than
1.0 µg/L in W-31s, the farthest downgradient well to the north.
Background of Shallow Zone. The PCE concentrations in W-12s remain
less than 1.0 µg/L through April 1998 (no samples were collected since then
due to low water levels). PCE concentrations in W-18s have ranged between
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Ms. Nancy K. Prince
October 31, 2001
Page 6
6.0 µg/L in December 1995 to 0.45 µg/L in November 2000 and the most
recent result was 2.0 µg/L.
Intermediate Groundwater Zone:
South Area of Intermediate Zone. The PCE concentrations in W-5i have
ranged between 25 µg/L and 7 6 µg/L and the most recent result was 51 µg/L.
In W-22i, PCE concentrations have ranged from 170 µg/L to 63 µg/L and
there may be a downward trend in PCE concentration. Due to inaccessibility
resulting from the ongoing OU2 remedial action work, W-22i has not been
sampled since December 1999. In W-29i, concentrations have varied between
15 µg/L and 78 µg/L (the results since 1998 have remained almost constant).
At the farthest downgradient well, W-32i, concentrations have varied from
0.26 µg/L to 1.4 µg/L (because of the low concentrations, no trend can be
identified).
North Area oflntermediate Zone. The PCE concentrations at W-28i have
fluctuated between 1 70 µg/L and 860 µg/L and show a possible upward trend
since 199_8. At W-30i, concentrations have ranged from 500 µg/L to
2,300 µg/L, and since 1999, an upward trend is indicated. At W-20i,
concentrations have fluctuated between 230 µg/L and 1,100 µg/L with the
most recent sample result of 300 µg/L and there is no indication of a trend. At
the farthest downgradient well, W-31i, concentrations have remained less than
1.0 µg/L (typically reported as less that the detection limit) and the most recent
result was 0.11 µg/L. ·
Background oflntermediate Zone. The PCE concentrations remain
between 0.66 µg/L and 2 µg/L in W-l0i and between 1.3 µg/L and 3.0 µg/L
in W-12i.
Deep well W-20d in the north plume area was installed in 1998 and is included as
part of the semiannual MNA sampling. The PCE concentrations in this well may be
decreasing from the September 1998 high of 34 µg/L to the most recent result of
3.0 µg/L.
EVALUATION OF PLUME STABILITY
Plume stability as a result of natural attenuation is evaluated using the primary
evidence, which is the groundwater VOC data, and the secondary evidence, which is
the groundwater bioparameter data.
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Ms. Nancy K. Prince
October 31, 2001
Page 7
Primary Evidence from VOC Data
Inspection of the data in Table A-1 for PCE and its daughter products indicates that
concentrations might be increasing in the source area and at a moderate distance
from the source area, particularly to the north, but show no evidence of increase at
the farthest distances downgradient. Continued monitoring is needed to assess the
apparent trends and to evaluate the impact by AS/SVE at reducing VOC
concentrations in and near the source area and, longer term, in the outer plume.
The daughter products of PCE (ICE, cis-1,2-DCE, vinyl chloride, and ethene)
continue to be present, which is evidence of reductive dechlorination. Daughter
products, especially TCE and cis-1,2-DCE, are found across much of the plume.
The daughter product concentrations remain essentially constant relative to PCE
concentrations. In W-Ss, the concentration of cis-1,2-DCE continues to exceed the
concentration of its parent compound(s). The high ratio of daughter product to
parent compound is consistent with the bioparameter data.
Other VOCs including 1,1,1-trichloroethane (1,1,1-TCA), 1,1,2-trichloroethane
(1,1,2-TCA) and the apparent degradation products 1,1-dichloroethane (1,1-DCA),
1,2-dichloroethane (1,2-DCA), and 1,1-dichloroethene (1,1-DCE) are present in a
few wells at relatively constant low levels. In a few cases, compounds reported to be
present in the December 1998 samples at concentrations barely exceeding detection
limits were reported as not detected for the June 1999 and December 1999 sampling
events. Except for samples obtained from W-Ss, the concentrations of these
compounds remained below 10 µg/L as of the April 2001 MNA sampling event.
Several other wells that were sampled as part of the additional sampling in May and
June 2001 (see list in Table 2) had concentrations of 1,1-DCA, 1,1-DCE, and
1, 1, 1-TCA that were higher than 10 µg/L.
Secondary Evidence from Bioparameter Data
The groundwater quality data with respect to plume stability and the presence of
daughter products represent the primary lines of evidence that natural attenuation is
taking place. In addition to the primary evidence, secondary evidence for the
occurrence of natural attenuation is provided by the bioparameter data in the form
of high or low concentrations of certain electron acceptors, products of degradation
(in addition to the VOC daughter products discussed earlier), nutrients, and
geochemical parameters. These data provide indirect evidence of reductive
dechlorination except for ethene, ethane, and chloride, which are degradation
products, and therefore, provide direct evidence of the process. These bioparameter
data also provide evidence of whether groundwater conditions are favorable for the
continued occurrence of reductive dechlorination. The data for this second type of
parameters are also presented in Table A-1.
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Ms. Nancy K. Prince
October 31, 2001
Page 8
The nature of the subsurface conditions at this Site make representative sampling
and analysis difficult for many of the parameters used herein as secondary evidence
of natural biodegradation. In particular, the tendency for many of the wells to pump
dry while purging and sampling increases the tendency for volatiles (e.g. ethene,
ethane, and methane) to be lost to the atmosphere. Suspended sediments in the
samples, even in small quantities, can significantly affect concentrations of metals
(e.g., aluminum, manganese;and iron) measured by the analyses. Furthermore, many
normal activities such as application of road salt to roads and driveways and
application of fertilizer to lawns can affect the groundwater chemistry (e.g., chloride
and nitrate, respectively). This can compromise interpretation of some of the
secondary evidence without causing notable environmental impact. Much of the
variability in the data in Table A-1 likely reflects these artifacts of sampling and Site
conditions, and renders some of the data equivocal.
Despite some variability in the data and potential effects of some of the wells going
dry during sampling, there is evidence supportive of reductive dechlorination.
Specifically, DO, nitrate, and sulfate are generally low, especially in the intermediate
zone and the downgradient portions of the plume. · Sulfide was also reported for
several wells. Frequent detections of methane, ethane, and ethene are also indicative
of reductive dechlorination. As previously noted, ethane and ethene are degradation
products of PCE and, therefore, direct evidence of its biological breakdown. The
presence of methane is very convincing evidence that highly reducing conditions
exist and that appropriate bacterial processes for degrading PCE under these
conditions are proceeding.
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Ms. Nancy K. Prince
October 31, 2001
Page 9
Please call Bob Norris at [phone] or Ken Oma at [phone] if you have
any questions or comments regarding this letter report.
Sincerely,
BROWN AND CALDWELL
?J!d· I!# / 1 ///; 1{!?,~l,f //,;"#/!.ii /;L
Robert D. Norri~: Ph.D.
Technical Director
In-Situ Remediation
cc: K. Mallary, EPA Region 4
N. Testerman, NCDENR
R. Towe, El Paso
S. Miller, El Paso
J. Porter, Coates, Davenport & Gurne
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Kenton H. Oma, P.E.
Assistant Technical Director
Design & Solid Waste
H. Mitchell, Jr., Beaunit
M. Garlick, Burlington
B. Wicker, Burlington
G. House, BPMH&L
R. Ash, Brown and Caldwell
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Table 1. Monitoring Wells Selected for Semiannual Groundwater Sampling,
FCX-Statesville Superfund Site OU3
Groundwater Monitoring
Zone Well'
Shallow: W-Ss
W-12s'
W-17s
W-18s'
W-19s
W-20s
W-22s
W-24s
W-31s
Intermediate: W-Si
W-10i'
W-12i b
W-20i
W-22i
W-28i
W-29i
W-30i
W-31i
W-32i
Deep: W-20d
Comments for April 2001 Sampling
Well was sampled for a limited list of parameters due to low water level.
Well was not sampled because of low water level or dryness.
Well was sampled for a limited list of parameters due to low water level.
Well was not sampled due to inaccessibility resulting from OU2 RA work.
Well was not sampled due to inaccessibility resulting from OU2 RA work.
'The analytical methods for the analyses of groundwater samples are given in Table 3.
'Natural attenuation background well.
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Table 2. Additional Monitoring Wells Selected for Non-Routine Groundwater Sampling,
FCX-Statesville Superfund Site OU3
Groundwater Monitoring
Zone Well"
Shallow: W-1s
W-2s
W-3s
W-4s
W-6s
W-7s
W-8s
W-9s
W-10s
W-11s
W-13s
W-14s
W-15s
W-16s
W-215
W-23s
W-25s
W-27s
MW-1
MW-2
MW-3
MW-4
MW-5s
MW-6s
MW-7
MW-8
MW-9
MW-10
Intermediate: W-1i
W-2i
W-8i
W-9i
W-13i
W-14i
W-15i
W-16i
W-26i
MW-5d
MW-6d
MW-11
Comments for May and June 2001 Sampling
Well was not sampled because of low water level or dryness.
Well was sampled for a limited list of parameters due to low water level.
Well was sampled for a limited list of parameters due to low water level.
Well was not sampled because of low water level or dryness.
Well was sampled for a limited list of parameters due to low water level.
Well was not sampled for DO due to murky water.
Well was sampled for a limited list of parameters due to low water level.
8 The analytical methods for the analyses of groundwater samples are given in Table 3. The samples were
not analyzed for metals or volatile fatty acids.
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Table 3. Summary of Chemical Analyses and Analytical Method References for Semiannual Groundwater Sampling,
FCX-Statesville Superfund Site OU3
Sample Evaluation Chemical TesUAnalyte Parameter Analytical Reference Method a DQO Level b
Field Measurements:
Laboratory Analyses:
Carbon dioxide
Iron (II)
Manganese (II)
Sulfide
Conductivity
Oxidation-reduction potential (ORP)
pH
Dissolved oxygen (DO)
Temperature
Chloride
Iron (total)
Manganese (total)
Aluminum (total)
Nitrate/nitrite
Sulfate
Ethane, ethene, and methane e
TCL voes
Alkalinity (carbonate/bicarbonate) f
Dissolved total organic carbon (TOC)
Volatile fatty acids
Hach Kit C
Hach Kit C
Hach Kit C
Hach Kit C
ASTM Method D-1125-82
ASTM Method D-1498-76
ASTM Method D-1293-84
CHEMETRICS Kit c
NAd
USEPA Method 325.2
Aquaterra QAPP Table 3
Aquaterra QAPP Table 3
Aquaterra QAPP Table 3
USEPA Method 353.2
USEPA Method 375.4/9038
USEPA Method 8015-Modified
Aquaterra QAPP Table 2
Standard Methods 23208
USEPA Method 415.1
Standard Methods 5560C
111
IV
IV
IV
111
111
111
IV
111
111
111
a Sample preservatives, when required by the method, will be added to sample containers at the analytical laboratory prior to sampling. Contract
Required Detection Limits (CRDLs) will be according to the contract laboratory procedure (CLP) methods referenced in the Aquaterra QAPP
Tables 2 and 3. .
b DQOs (Data Quality Objectives) and QA/QC · frequencies per "Environmental Investigations Standard Operating Procedures and Quality
Assurance Manual", May 1996, USEPA Region 4. Level I = Field Screening; Level II = Field Analyses; Level Ill = Screening Data with
Definitive Confirmation; Level IV = Definitive Data.
c Method will be per manufacturer's procedures.
d Not Applicable. · ·
e Analysis will be subcontracted to Microseeps Incorporated, Pittsburgh, Pennsylvania.
f Samples to be collected in zero head space containers to prevent exchange of carbon dioxide between the samples and the atmosphere.
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I ---I SCALE FEET
z ____ ._
Legend
Shallow Monitoring Well Location
Intermediate Monitoring Well Location
Deep Monitoring Well Location
MONITORING WELL LOCATION MAP
FCX-STATESVILLE SUPERFUND SITE OU3
STATESVILLE, NORTH CAROLINA
18895.016 10/01
BROWN AND
CALDWELL Nashville, Tennessee
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PCE SHALLOW GROUNDWATER
ISOCONCENTRATION MAP
FCX-STATESVILLE SUPERFUND SITE OU3
STATESVILLE, NORTH CAROLINA
18895.016 10/01
BROWN AND
CALDWELL Nashville, Tennessee
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11 - ----SCALE FEET
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FIGURE 3
PCE INTERMEDIATE GROUNDWATER
ISOCONCENTRATION MAP
FCX-STATESVILLE SUPERFUND SITE OU3
STATESVILLE, NORTH CAROLINA
18895.016 10/01
BROWN AND
CALDWELL Nashville, Tennessee
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APPENDIX
P: \PROJ\ 18895\18895.016\apr-01 ':'lincvr.doc
----- ------- ----Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information
Monitoring WeD Zone Well Type
WeU
Screened
Depth
(ft)
SampUng
Date
FCX OU3 Groundwater Perfonnance Standards per the RA Work Plan:
MW-1
MW-1Dup
MW-1
MW-1
MW-1
MW-1
MW-2
MW-3
MW-3
MW-3
MW-4Dup
MW-4
MW-4
MW-4
MW-5s
MW-5s
M\o\l-5s
MW-5s
MW-5d
MW-5d
MW-5d
MW-5d
MW-6s
MW-6s
MW-6s
MW-6d Dup
MW-6d
MW-6d
MW-6d
MW-6d Dup
MW-7
MW-7
MW-7
South Plume Shallow
South Plume Shallow
South Plume Shallow
South Plume Shallow
South Plume Shallow
South Plume Shallow
South Plume Shallow
South Plume ShaDow
South Plume ShaDow
South Plume Shallow
Side Gradient Shallow
Side Gradient ShaUow
Side Gradient Shallow
Side Gradient Shallow
South Plume Shallow
South Plume ShaUow
South Plume ShaOow
South Plume Shallow
41.56-51.56 4/19/1994
41.56-51.56 10/10/1994
41.56-51.56 10/10/1994
41.56-51.58 5/16/2001
41.51-51.51 4/29/1994
41.51-51.51 10/10/1994
42.52-52.52 5/23/2001
43.01-53.01 4/19/1994
43.01-53.01 9/18/1994
43.01-53.01 5/16/2001
51.43-61.43 4/28/1994
51.43-61.43 4/18/1994
51.43-61.43 10/511994
51.43-61.43 5/1712001
48.03-58.03 4118/1994
48.03-58.03 10/511994
48.03-58.03 11/11/1995
48.03-58.03 5116/2001
South Plume Intermediate 18.76-30.54 4/29/1994
South Plume Intermediate 18.76-30.54 10/6/1994
South Plume Intermediate 18.76-30.54 12/13/1995
South Plume Intermediate 18.76-30.54 5123/2001
South Plume Shallow
South Plume Shallow
South Plume Shallow
45.36-55.36 4128/1994
45.36-55.36 10/6/1994
45.36-55.36 5/21/2001
South Ph..lme Intermediate 26.8-16.3 4129/1994
South Pluine Intermediate 26.8-16.3 4129/1994
South Plume Intermediate 26.8-16.3 10/4/1994
South Plume Intermediate 26.8-16.3 5/22/2001
South Plume Intermediate 26.8-16.3 5122/2001.
South Plume ShaUow 37.0-47.0 4128/1994
South Plume Shallow 37.0-47.0 9/29/1994
South Plume Shallow 37.0-47.0 5122/2001
P;\Proj\ 18895\ 1 8895.01 B\apr-01-IA01
Tetrachloro-
ethene
(µgl\.)
440.00
450.00
470.00
500 D
64.00
50.00
69 D
0.80 J
0.60 J
-0.26 J
4.00
4.00
0.20 J
0.14 J
1.00
0.60 J
1.00 U
0.87 J
47.00
59.00
15.00
76
3.00
0.60 J
1.0 U
1.00
1.00
0.60 J
99 D
100 D
3.00
3.00
1.0 U
Trichloro-
ethene
(µgl\.)
1.8
10.00 J
11.00 J
13.00 J
6.8 JD
5.00 J
3.00 J
10
1.00 U
1.00 U
1.0 U
1.00 J
1.00 J
0.01 J
1.0 U
0.20 J
1.00 U
1.00 U
1.0 U
4.00 J
5.00
3.00
12
0.40 J
1.00 U
1.0 U
0.80 J
1.00
0.10 JB
18
18
0.60 J
0.30 J
1.0 U
cis-1,2-
Dichloro-
ethene
(µgl\.)
70
36.00
46.00
49.00
14 D
59.00
61.00
210 D
1.00 U
1.00 U
1.0 U
0.50 J
0.50 J
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
8.00
11.00
6.00
22
0.10 J
1.00 U
1.0 U
0.50 J
0.70 J
0.50 J
7.4
7.4
0.50 J
1.00 U
1.0 U
Vinyl chloride
(µgl\.)
0.015
15.00 U
25.00 U
15.00 U
20 UD
1.00 J
1.00 J
4.5
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
4.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.0 U
1.00 U
1.00 U
1.0 U
Volatile Organic Compounds
Acetone
(µgl\.)
71.00 U
110.00 U
110.00 U
100 UJD
31.00 U
15.00 U
NR
5.00 U
5.00 U
NR
5.00 U
5.00 U
7.00 U
NR
49.00 U
5.00 U
5.00 U
NR
10.00 U.
7.00 U
11.00 U
NR
76.00 U
5.00 U
NR
5.00 U
5.00 U
5.00 U
NR
NR
5.00 U
6.00 U
NR
Benzene
(µgl\.)
15.00 U
15.00 U
15.00 U
20 UD
5.00 U
5.00 U
0.36 J
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
10.00 J
1.00 J
0.50 J
0.30 J
1.00 U
1.00 U
1.0 U
0.10 J
0.40 J
1.00 U
1.0 U
0.11 J
1.00 U
1.00 U
1.0 U
Carbon
disulfide
(µgl\.)
15.00 U
15.00 U
15.00 U
20 UD
5.00 U
5.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
4.00 U
1.00 U
0.20 J
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.0 U
1.00 U
1.00 U
1.0 U
Carbon
tetrachloride
(µgl\.)
0.3
15.00 U
15.00 U
15.00 U
20 UD
5.00 U
5.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00
1.00
1.00 U
0.22 J
1.00 U
1.00 U
1.00 U
1.0 U
4.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.0 U
1.00 U
1.00 U
1.0 U
Chloroform
(µgl\.)
0.19
15.00 U
4.00 J
5.00 J
20 UD
5.00 U
5.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
4.00 U
1.00 U
0.60 J
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
9.2
9.3
1.00 U
0.90 J
1.0 U
Chloro-
methane
(µgl\.)
15.00 U
15.00 U
15.00 U
10 UD
5.00 U
5.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 u·
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
4.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.0 U
1.00 U
1.00 U
1.0 U
1, 1-Dichloro-
ethane
(µ91\.)
37.00
45.00
47.00
17 JD
46.00
46.00
60
1.00 U
1.00 U
1.0 U
0.10 J
0.10 J
1.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
9.00
11.00
6.00
12
1.00 U
1.00 U
1.0 U
0.10 J
0.10 J
0.10 J
1.4
1.4
0.10 J
1.00 U
1.0 U
Page 1 of 51
--- ------- ----Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information
Monitoring Well Zone Well Type
wen
Saeened
Depth
(ft)
Sampling
Date
FCX OUJ Groundwater Perfonnance standards per the RA Work Plan:
MW-8
MW-8
MW-8
MW-9
MW-90\Jp
MW-9
MW-9
MW-10
MW-10
MW-10
MW-11
MW-11
MW-11
MW-11
W-1s
W-1s Dup
W-1s
W-1s
W-1s
W-ti
W-11
W-1s
W-2s
W-2s
W-~
W-21
W-3s
W-3s
W•3S
W-4sDup
W-4s
W-4s
Side Gradient Shallow
Side Gradient Shallow
Side Gradient Shallow
Side Gradient Shallow
Side Gradient Shallow
Side Gradient ShaDow
Side Gradient Shallow
Side Gradient Shallow
Side Gradient Shallow
Side Gradient Shallow
45.88-55.88 412811994
45.88-55.88 9129/1994
45.88-55.88 5/1612001
53.5-63.5 4129/1994
53.5-63.5 101711994
53.5-63.5 101711994
53.5-63.5 5/2112001
50.56-60.56 4128/1994
50.56-60.56 9128/1994
50.56-60.56 5121/2001
South Plume Intermediate 4J)-8.0 4/29/1994
South Plume Intermediate 4.0-8.0 · 10/6/1994
South Plume Intermediate 4.0-8.0 12/13/1995
South Plume lntennedlate 4.0-8.0 5123/2001
Side Gradient Shallow 34-48 4127/1994
Side Gradient ShaUow 34-48 10/6/1994
Side Gradient Shallow 34-48 10/6/1994
Side Gradient Shallow 38-48 12/19/1998
Side Gradient Shallow 34-48 511612001
Side Gradient Intermediate 65.5-72.5 10/6/1994
Side Gradient Intermediate 65.5-72.5 5116/2001
Side Gradient Shallow 33.5-43.5 4127/1994
Side Gradient Shallow 33.5-43.5 10/5/1994
Side Gradient Shallow 33.5-43.5 511512001
SideGradient Intermediate 83-93 10/511994
Side Gradient Intermediate 83-93 511512001
South Plume Shallow 34.0-44.0 4127/1994
South Plume Shallow 34.0-44.0 10/10/1994
South Plume Shallow 34.0-44.0 5/1512001
South Plume Shallow 34-44 4127/1994
South Plume Shallow 34-44 4127/1994
South Plume ShaUow 34-44 9128/1994
P:\Proi'\18895118895.016\apr-01 -IA01
T etrachloro-
ethene
(µg/1.)
0.7
2.00
8.00
0.34 J
32.00
110.00
120.00
160 D
3.00
3.00
2.5
63.00
65.00
52.00
31
110.00
41.00
97.00
140 DJ
120 D
13.00
20
6.00
3.00
3.0
5.00
42
850.00
710.00
810 D
6.00
5.00
9.00
Trichloro-
ethene
(µg/1.)
2.8
0.30 J
0.40 J
1.0 U
3.00
8.00
8.00
33
0.20 J
1.00 U
1.0 U
2.00 J
2.00 J
2.00 J
10
1.00 J
0.70 J
2.00 J
0.7 DJ
0.57 JD
7.00 J
12
2.00
0.80 J
0.11 J
2.00
0.54 J
32.00 J
25.00 J
26 D
0.50 J
0.50 J
0.20 J
cis-1,2-
Didlloro-
ethene
(µg/1.)
70
0.20 J
1.00 U
1.0 U
25.00
100.00
110.00
370 D
0.10 J
1.00 U
1.0 U
10.00
13.00
16.00
6.9
5.00 U
5.00 U
2.00 J
1.0 U
5.0 UD
10.00 U
0.64 J
1.00 U
2.00 U
1.0 U
1.00 U
1.0 U
49.00 J
44.00 J
41 D
1.00 U
1.00 U
1.00 U
Vinyl chloride
(µg/1.)
0.015
1.00 U
1.00 U
1.0 U
0.30 J
1.00 J
1.00 J
2.8
1.00 U
1.00 U
1.0 U
5.00 U
5.00 U
2.00 U
1.0 U
5.00 U
5.00 U
5.00 U
5.0 UD
5.0 UD
10.00 U
0.19 J
1.00 U
2.00 U
1.0 U
1.00 U
1.0 U
50.00 U
50.00 U
20 UD
1.00 U
1.00 U
1.00 U
Volatile Organic Compounds
Acetone
(µg/1.)
7.00 U
5.00 U
6.6 UJ
17.00 U
20.00 JB
19.00 JB
NR
5.00 U
5.00 U
NR
25.00 U
25.00 U
12.00 U
NR
24.00 U
36.00 U
36.00 U
NR
NR
50.00 U
NR
5.00 U
10.00 U
NR
5.00 U
24 UJ
Benzene
(µg/1.)
1.00 U
1.00 U
1.0 U
2.00 U
0.60 J
0.60 J
0.62 J
1.00 U
1.00 U
1.0 U
5.00 U
5.00 U
2.00 U
1.0 U
Carbon
disulfide
(µg/1.)
1.00 U
1.00 U
1.0 U
2.00 U
5.00 U
5.00 U
1.0 U
1.00 U
1.00 U
1.0 U
5.00 U
5.00 U
2.00 U
1.0 UJ
5.00 U 5.00 U
5.00 U 5.00 U
5.00 U 5.00 U
5.0 UD 5.0 UD
5.0 UD 5.0 UD
10.00 U 100.00
0.42 J 0.97 J
1.00 U 1.00 U
2.00 U 2.00 U
1.0U 1.0U
0.10J 1.00U
1.0 U 6.5
250.00 U 50.00 U 50.00 U
50.00 U 250.00 U 50.00 U
100 UDJ 20 UD
5.00 U 1.00 U
2.00 J 1.00 U
5.00 U 1.00 U
20 UD
1.00 U
1.00 U
1.00 U
Carbon
tetrachloride
(µg/1.)
0.3
0.30 J
0.50 J
1.0 U
2.00 U
5.00 U
5.00 U
1.0 U
1.00 U
1.00 U
1.0 U
5.00 U
5.00 U
0.30 J
1.0 U
1.00 J
5.00 U
5.00 U
0.6JD
5.0 UD
10.00 U
1.0 U
3.00
2.00 U
0.82 J
14.00
1.3
50.00 U
50.00 U
3.9 JD
1.00 U
1.00 U
1.00 U
-- -
Chloroform
(µg/1.)
0.19
1.00 U
0.50 J
1.0 U
2.00 U
5.00 U
0.50 J
1.0 U
1.00 U
1.00 U
1.0 U
5.00 U
5.00 U
4.00
1.0 U
2.00 U
5.00 U
5.00 U
1.0 JD
5.0 UD
10.00 U
3.4 U
4.00 U
4.00 U
1.2 U
4.00 U
22 U
50.00 U
8.00 J
20 UD
1.00 U
1.00 U
0.40 J
Chiaro-
methane
(µg/1.)
1.00 U
1.00 U
1.0 U
2.00 U
5.00 U
5.00 U
1.0 U
1.00 U
1.00 U
1.0 U
5.00 U
5.00 U
2.00 U
1.0 U
5.00 U
5.00 U
5.00 U
5.0 U
5.0 UD
10.00 U
0.30 J
1.00 U
2.00 U
1.0 U
1.00 U
0.64 J
50.00 U
50.00 U
20 UD
1.00 U
1.00 U
1.00 U
1,1-Dichloro-
ethane
(µg/1.)
1.00 U
1.00 U
1.0 U
13.00
57.00
59.00
92
1.00 U
1.00 U
1.0 U
10.00
12.00
14.00
1.4
5.00 U
5.00 U
2.00 J
5.0 UD
5.0 UD
10.00 U
2.8
1.00 U
2.00 U
1.0 U
1.00 U
1.0 U
50.00 U
50.00 U
20 UD
1.00 U
1.00 U
1.00 U
Page 2 of 51
- ---- ---------- --- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information
Monitoring WeU Zone wen Type
WeU
Screened
Depth
(ft)
Sampling
Date
FCX OU3 Groundwater Perfonnance Standards per the RA Work Plan:
W-5s
W-5s Dup
W-5s
W-5s
W-5s
W-5s b
W-5s
W-5s Dup
W-5s
W-5s
W-5s
W-Si
W-Si
W-Si
W-Si
W-Si
W-SiDup
W-Si
W-Si
W-51
W-6s Dup
W-6s
W-6s Dup
W-6s
W-6s
W-7s
W-7s
W-8s
W-6s
W-6s
W-8s
W-Bi
W-Bi
W-8i
W-8i
W.Si
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
ShaDow
Shanow
Shanow
Shallow
ShaDow
Shanow
ShaDow
Shallow
ShaDow
Shanow
South Plume Shallow
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
Side Gradient
Side Gradient
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
lntennedlate
Shallow
Shallow
Side Gradient Shallow
Side Gradient Shallow
Side Gradient Shallow
North Plume Shanow
North Plume Shallow
32-42
32-42
32-42
32-42
32-42
32-42
32-42
32-42
32-42
32-42
32-42
56-66
56-66
56-66
56-66
56-66
56-66
56-66
56-66
56-66
22-37
22-37
22-37
22-37
22•37
15-30
15-30
Side Gradient ShaUow 20-35
Side Gradient Shallow 20-35
Side Gradient Shaffow . 20-35
Side Gradient Shallow 20-35
Side Gradient Intermediate 83-93
Side Gradient Intermediate 83-93
Side Gradient Intermediate 83-93
Side Gradient Intermediate 83-93
Slde Gradient lntennedlate 83-93
P:\Pmj\ 18895118895.0 16\;lpr-01-IA01
4/27/1994
10/11/1994
10/11/1994
4/30/1998
12/17/1998
6/9/1999
1217/1999
12/17/1999
6/6/2000
11/28/2000
4123/2001
10/11/1994
515/1998
12/19/1998
61811999
12/8/1999
619/2000
6/9/2000
11/30/2000
4/23/2001
10/12/1994
10/12/1994
4/3011998
4130/1998
5115/2001
10/12/1994
5116/2001
10/11/1994
1110/1995
12/12/1995
5115/2001
10/11/1994
111111995
12/14/1995
12/16/1998
5115/2001
T etrachloro-
ethene
(µg/L)
0.7
200.00
240.00
190.00
200 DJ
200 UJ
190 D
220 D
200 D
190 D
380 D
240 D
25.00
49 D
28 D
48 D
55 D
76 D
73 D
70 D
51 D
280.00
270.00 .
850 D
1,300.00
1,500 D
1.00 U
1.00 U
0.20 J
021 J
380.00
340.00
98.00
75 J
58
Trichloro-
elhene
(µg/L)
2.8
38.00 J
56.00
38.00 J
55 J
53 J
57 JD
75 JD
67 D
50 JD
120 D
76 D
2.00 J
4.9 DJ
4
4.6 D
6.5 D
6.4 D
6.7 D
8.5 D
5.4 D
48.00
51.00
63 D
66.00 J
44 JD
1.00 U
1.00 U
10.00
1.0 U
8.00 J
8.00 J
8.00
4
4.5
cis-1,2-
.Dichloro-
elhene
(µg/L)
70
1,000.00
1,200.00
1,000.00
1,300 DJ
1,600 J
1,100 D
1,100 D
1,600 D
1,100 D
2,300 D
2,100 D
11.00
4 DJ
10 J
6.9 D
9.9 D
12 D
12 D
14 D
12 D
43.00
48.00
73 D
200.00
150 D
1.00 U
1.00 U
0.70 J
1.0 U
10.00 J
14.00 J
6.00
3
2.7
Vinyl chloride
(µg/L)
0.015
50.00 U
50.00 U
50.00 U
8.2 J
50 J
100 UD
100 UD
26 DJ
100 UD
100 UD
9.5 JD
10.00 U
5.0 UD
0.3 J
2.0 UD
5.0 UD
5.0 UD
5.0 UD
5.0 UD
2.0 UD
25.00 U
25.00 U
1.9 JD
120.00 U
50 UD
1.00 U
1.00 U
1.00 U
1.0 U
25.00 U
25.00 U
5.00 U
0.09 J
0.10 J
Volatile Organic Compounds
Acetone
(µg/L)
530.00 U
250.00 U
250.00 U
61 UJ
NR
500 UJ
500 UD
NR
500 UD
2,000 D
50 UD
50.00 U
25 UD
NR
10 UJ
25 UD
25 UD
25 UD
75 D
10 UD
120.00 U
120.00 U
50 UDJ
Benzene
(µg/L)
50.00 U
7.00 J
50.00 U
2.9 J
200 UJ
100 UD
100 UD
4 JD
100 UD
100 UD
2.0 JD
10.00 U
5.0 UD
1.0 U
2.0 UD
5.0 UD
5.0 UD
5.0 UD
5.0 UD
027 JD
25.00 U
25.00 U
10 UD
Carbon
disulfide
(µg/L)
50.00 U
50.00 U
50.00 U
5.0 UJ
200 UJ
100 UD
100 UD
50 UD
100 UD
100 UD
10 UD
10.00 U
5.0 UD
1.0 U
1.0 JD
5.0 UD
5.0 UD
5.0 UD
5.0 UD
2.0 UD
25.00 U
25.00 U
10 UD
Carbon
tetrachloride
(µg/L)
0.3
50.00 U
50.00 U
50.00 U
5.0 UJ
200 UD
100 UD
100 UD
50 UD
100 UD
100 UD
10 UD
10.00 U
5.0 UD
1.0 U
2.0 UD
5.0 UD
5.0 UD
5.0 UD
5.0 UD
2.0 UD
25.00 U
25.00 U
10 UD
Chloroform
(µg/L)
0.19
50.00 U
5.00 J
50.00 U
2.2 J
200 UJ
100 UD
100 UD
50 UD
100 UD
100 UD
10 UD
2.00 J
5.0 UD
0.06 J
2.0 UD
5.0 UD
5.0 UD
5.0 UD
5.0 UD
2.0 UD
25.00 U
25.00 U
10 UD
Chiaro-
methane
(µg/L)
50.00 U
17.00 J
50.00 U
5.0 UJ
200 lJJ
100 UD
100 UD
50 UD
100 UD
100 UD
10 UD
10.00 U
5.0 UD
1.0 UJ
2.0 UD
5.0 UD
5.0 UD
5.0 UD
5.0 UDJ
2.0 UD
25.00 U
25.00 U
10 UD
620.00 U 120.00 U 120.00 U 120.00 U 120.00 U 120.00 U
~ 5000 5000 5000 5000 5000
5.00 U
5.00 U
5.00 U
NR
120.00 U
120.00 U
440.00
44 J
18 UJ
1.00 U
1.00 U
1.00 U
1.0 U
25.00 U
25.00 U
5.00 U
0.08 J
0.14 J
1.00 U
1.00 U
1.00 U
1.0 U
25.00 U
3.00 J
5.00 U
0.5 J
1.0
1.00 U
1.00 U
1.00 U
1.0 U
4.00 J
25.00 U
5.00 U
1.0 U
1.0 U
1.00 U
1.00 U
2.00
1.0 U
3.00 J
3.00 J"
2.00 J
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
25.00 U
25.00 U
5.00 U
1.0 U
0.45 J
1, 1-Dichloro-
ethane
(µg/L)
430.00
460.00
380.00
340 DJ
270 J
240 D
280 D
290 D
220 D
450 D
230 D
5.00 J
3.3 DJ
5 J
4.5 D
8.1 D
8.1 D
8.0 D
9.1 D
8.3 D
25.00 U
25.00 U
10 UD
120.00 U
50 UD
1.00 U
1.00 U
1.00 U
1.0 U
25.00 U
25.00 U
5.00 U
0.2 J
1.0 U
Page 3 of 51
----- -- - ----- - -----Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well cis-1,2-
Screened Samp01g T etrachloro-Trichloro-Dichloro-Carbon Carbon Chloro-1, 1-Dichloro-
Monitoring Well Zone Well Type Deplh Date ethene ethene ethene Vinyl chloride Acetone Benzene disulfide tetrachloride Chloroform methane ethane
(ft) (µg/L) (µgll) (µg/L) (µgll) (µgll) (µg/L) (µgll) (µg/L) (µg/L) (µgll) (µg/L)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan: 0.7 1.8 70 0.015 0.3 0.19
W-9s Treatment ShaDow 34-49 10/11/1994 6,800.00 500.00 U 500.00 U 500.00 U 1,500.00 U 500.00 U 500.00 U 500.00 U 500.00 U 500.00 U 500.00 U
W-9s Dup Treatment Shallow 34-49 5/511998 3,100 D 13 D 1 DJ 10 UD 50 UD 10 UD 10 UD 10 UD 1.1 DJ 10 UD 10 UD
W-9s Treatment ShaDow 34-49 5/511998 3,100 D 14 D 1.9 DJ 10 UD 50 UD 10 UD 10 UD 10 UD 1.1 DJ 10 UD 10 UD
W-9s Treatment Shallow 34-49 11/17/1998 6,000 D 14 DJ 100 UD 100 UD NR 100 UD 100 UD 100 UD 100 UD 100 U 100 UD
W-9s Treatment Shallow 34-49 5115/1001 3,100 D 11 JD 50 UD 50 UD 250 UDJ 50 UD 50 UD 50 UD 50 UD 50 UD 50 UD
W-9i Treatment Intermediate 81-91 10/11/1994 15.00 13.00 7.00 5.00 U 15.00 U 5.00 U 5.00 U 68.00 16.00 5.00 U 1.00 J
W-91 Treatment Intermediate 81-91 5115/2001 4.4 5,0 1.0 U 1.0 U NR 1.0 U 0,16 J 42 16 1.0 U 1.0 U
W-10s South Plume Shallow 10-35 10/7/1994 18.00 J 100.00 U 100.00 U 100.00 U 1,000.00 U 100.00 U 100.00 U 100.00 U 100.00 U 100.00 U 100.00 U
W-10s South Plume Shallow 10-35 1/10/1995 470.00 4.00 J 15.00 U 15.00 U 110.00 U 15.00 U 15.00 U 15.00 U 5.00 J 15.00 U 15.00 U
W-10s South Plume Shallow 10-35 11/14/1995 190.00 4.00 J 3.00 J 10.00 U 50.00 U 10.00 U 10.00 U 10.00 U 10.00 U 10.00 U 10.00 U
W-10& South Plume Shallow 20-35 5116/2001 26 0.34 J 0.20 J 1.0 U NR 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1,0 U
W-10i Side Gradient Intermediate 59-69 10/7/1994 1.00 U 1.00 U 1.00 U 1.00 U 11.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-10i Side Gradient Intermediate 59-69 1/11/1995 0.90 J 0.10 J 1.00 U 1.00 U 6.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-10i Side Gradient Intermediate 59-69 11/11/1995 0.90 J 1.00 0.10 J 1.00 U 8.00 U 1.00 U 1.00 1.00 U 0.10 J 0.10 J 1.00 U
W-10i Side Gradient Intermediate 59-69 4130/1998 0.66 J 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-69 11/19/1998 1 1.0 U 1.0 UJ 1.0 U NR 1.0 UJ 1.0 U 1.0 W 1.0 U 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-69 6/8/1999 1.8 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 14 D 1.0 U 1.0 U 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-69 11/9/1999 1.1 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-69 6/6/1000 0.81 J 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 0.35 J 1.0 U 1.0 U 1.0 U 1.0 U
W-10iDup(field) Side Gradient Intermediate 59-69 11/18/1000
W-10i Side Gradient Intermediate 59-69 11/18/1000 0.9 J 1.0 U 1.0 U 1.0 U 5.0 U 3.1 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W•10I South Plume Intermediate 59-69 4/14/1001 1.1 1.0 U 1.0 U 1.0 U 5.0 U 028 J 028 J 1.0 U 1.0 U 1.0 U 1.0 U
W-11s Dup Side Gradient Shallow 25-40 · 10/5/1994 0.30 J 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-11s Side Gradient ShaDow 15-40 10/5/1994 0.30 J 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-11s Side Gradient Shallow 15-40 1/10/1995 0.10 J 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-11s Side Gradient ShaDow 15-40 4/30/1998
W-11s Side Gradient Shallow 25-40 5117/1001 1.0 U 1.0 U 1.0 U 1.0 U NR 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-11s Background Shallow 18-33 10/4/1994 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-12s Dup Background Shallow 18-33 1/10/1995 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 0.10 J 1.00 U 1.00 U
W-11s Background Shallow 18-33 1/10/1995 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 0.10 J 1.00 U 1.00 U
W-12s Background Shallow 18-33 4/30/1998 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-12s Background Shaffow 18-33 11/8/1999
P:\Proj\ 18895\16a9S.016\apr-01-tA01 Page 4 of 51
- - - -- -- - -- -- -- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well lnfonnation
MonitOring Well Zone Well Type
WeD
Screened
Depth
(fl)
Sampflng
Date
FCX OUJ Groundwater Perfonnance Standards per the RA Work Plan:
W-12i Dup
W-12i
W-12i
W-12i
W-12i
W-12i
W-12i
W-12i
W-12i
W-121
W-13i Dup
W-13i
W-131
W-14s ll\lp
W-14s
W-14s
W-14s
W-14i
W-14i
W-141
W-15s
W-15s
W-15s ·
W-15i ~up
W-15i
W-15i
W-151
W-151 Dup
W-16s
W-16s
W-16s
W-16s
W-16i
W-16i
Background.
Background
Background
Background
Background
Background
Background
Background
Background
Background
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Side Gradient Intermediate
Side Gradient Intermediate
Side Gradient Intermediate
Side Gradient ShaDow
Side Gradient Shallow
Side Gradient ShaUow
73-a3
73-a3
73-83
73-83
73-83
73-83
73-83
73-a3
73-83
73-83
70-80
70-80
10-ao
37-52
37-52
37-52
10/411994
101411994
1/1111995
4130/1998
1211611998
61711999
121911999
61712000
1112912000
4125/2001
1013/1994
10/311994
512212001 ·
912911994
9/2911994
1110/1995
Side Gradient Shallow 37•52 5118/2001
Side Gradient Intermediate 105-115 9/30/1994
SideGradient Intermediate 105-115 1/10/1995
SideGradient Intermediate 105-115 5/2312001
Side Gradient Shanow 30-45 9/29/1994
Side Gradient Shallow 30-45 1/10/1995
Side Gradient Shallow 30-45 5/18/2001
Side Gradient Intermediate
Side Gradient Intermediate
Side Gradient Intermediate
Side Gradient Intermediate
Side Gradient Intermediate
Treatment
Treatment
Treatment
Treatment
Treatment
Treatment
ShaDow
ShaOow
Shallow
Shallow
Intermediate
Intermediate
71-a1
71-a1
71-81
11-a1
71-81
9/3011994
9130/1994
1/1011995
6/2612001
6/26/2001
35-50 10/1111994
35-50 51511998
35-50 1211711998
35-50 511612001
11-a1 1011111994
11-a1 51511998
W-16i Treatment Intermediate 11-a1
11-a1
1211711998
5/1612001 W-161 Treatment Intermediate
P:\Proj\18895\1 8895.016\apr.01-tAD1
T etrachloro-
ethene
{Ilg/I.)
0.7
3.00
3.00
2.00
1.5
2 J
2.5
2.2
1.3
2.5 B
1.5
6.00
7.00
3.8
0.90 J
1.00
0.40 J
0.11 J
1.00
4.00
1.0 U
4.00
0.20 J
0.42 J
1.00
1.00
2.00 J
1.0 U
1.0 U
4,000.00
2,300 D
4,700 D
1,200.00
1,000 D
400 D
Trichloro-
ethene
(µg/1.)
2.8
1.00 U
1.00 U
1.00
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
0.20 J
0.30 J
0.14 J
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
5.00
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.00 J
1.0 U
1.0 U
100.00 J
40 DJ
42 JD
37.00 J
26 D
5.7 D
cis-1,2-
Dichloro-
ethene
{Ilg/I.)
70
1.00 U
1.00 U
0.10 J
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
2.00 U
2.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
2.00
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
0.20 J
1.0 U
1.0 U
Vmyt chloride
{Ilg/I.)
0.015
1.00 U
1.00 U
1.00 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
2.00 U
2.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
2.00 U
1.0 U
1.0 U
86.00 J 250.00 U
200 UD 200 UD
40 JD 50 UD
43.00 J 100.00 U
18 D
3.6 JD
2.0 UD
5.0 UD
Volatile Organic Compounds
Acetone
(µg/1.)
5.00 U
5.00 U
6.00 U
310 DJ
NR
5.0 U
5.0 U
5.0 U
5.0 U
5.0 U
11.00
10.00 U
5.0 UJ
5.00 U
5.00 U
5.00 U
8.9 UJ
5.00 U
8.00 U
6.7 UJ
5.00 U
5.00 U
NR
5.00 U
5.00 U
10.00 U
5.0 UJ
5.0 U
Benzene
(µg/1.)
1.00 U
1.00 U
1.00 U
1.0 U
0.04 J
1.0 U
1.0 U
0.46 J
1.0 U
2.9
2.00 U
2.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
0.10 J
0.34 J
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
2.00 U
1.0 U
1.0 U
Carbon
disulfide
(µg/1.)
1.00 U
1.00 U
4.00
0.39 J
0.05 J
1.0 U
1.0 U
0.74 J
1.0 U
0.63 J
2.00 U
2.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
0.30 J
0.50 J
0.35 J
0.10 J
1.00 U
1.0 U
1.00 U
1.00 U
48.00
1.0 U
1.0 U
Carbon
tetrachloride
(µg/1.)
0.3
1.00 U
1.00 U
1.00 U
1.0 U
1.0 UJ
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
2.00 U
2.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
0.10 J
1.0 U
1.00 U
1.00 U
1.0 U
0.10 J
0.10 J
2.00 U
1.0 U
1.0 U
1,200.00 U 250.00 U 250.00 U 250.00 U
NR 200 UD 200 UD 200 UD
250 UJ 50 UD 50 UD 50 UD
500.00 U 100.00 U 100.00 U 50.00 J
NR
25 UDJ
2.0 UD
5.0 UD
2.0 UD
5.0 UD
54 D
4.3 JD
-
Chlorofom,
(µg/1.)
0.19
1.00 U
1.00 U
0.10 J
0.14 J
0.3 J
0.35 J
1.0 U
1.0 U
0.47 J
1.0 U
22.00
24.00
17
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
5.00
1.0 U
0.10 J
1.00 U
1.0 U
12.00
11.00
2.00 U
1.0 U
1.0 U
-
Chloro-
methane
(µg/1.)
1.00 U
1.00 U
1.00 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
0.14 J
2.00 U
2.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
2.00 U
1.0 U
1.0 U
--
1,1-Dichloro-
elhane
(µg/1.)
0.40 J
0.30 J
0.40 J
1.0 U
0.5 J
0.50 J
0.59 J
1.0 U
1.0 U
0.46 J
2.00 U
2.00 U
1.0 U
1.00 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
1.0 U
1.00 U
1.00 U
2.00 U
1.0 U
1.0 U
44.00 J 250.00 U 250.00 U
25 DJ 200 UD 200 UD
50 UD 50 UD 50 UD
44.00 J 100.00 U 100.00 U
40 D
40 D
2.0 U 2.0 UD
5.0 UD 5.0 UD
Page 5 of 51
--- -- --- - --- - -- - -- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well cis-1,2-
Screened Sampang T etrachloro-Trichloro-Dichloro-Carbon Carbon Chiaro-1, 1-Dichloro-
Monitoring Well Zone Well Type Depth Date ethene ethene ethene Vlllyl chloride Acetone Benzene disulfide tetrachloride Chloroform methane ethane
(fl) (µ9/1.) (µ9/1.) (µg/1.) (µ9/1.) (µ9/1.) (µg/1.) (µ9/1.) (µ9/1.) (µ9/1.) (µ9/1.) (µ9/1.)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan: 0.7 2.8 70 0.015 0.3 0.19
W-17s Source Shallow 29.5-44.5 10/11/1994 42,000.00 4,000.00 ~ 430.00 J 4,000.00 U 20,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U
W-17s Source Sh~low 29.5-44.5 1/10/1995 57,000.00 480.00 J 880.00 J 4,000.00 U 20,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U
W-17s Source ShaDow 29.5-44.5 5/5/1998 84,000 D 410 D 720 D 250 UD 1,200 UD 250 UD 250 UD 250 UD 110 DJ 250 UD 250 UD
W-17s Source Shallow 29.5-44.5 12/18/1998 72,000 D 10,000 UD 10,000 UD 10,000 UD NR 10,000 UD 10,000 UD 10,000 UDJ 10,000 UD 10,000 UD 10,000 UD
W-17Sd Source ShaDow 29.5-44.5 12/9/1999 110,000 D 5,000 UD 510 JD 5,000 UD 25,000 UD 5,000 UD 5,000 UD 5,000 UD 5,000 UD 5,000 UD 5,000 UD
W-17s Source Shanow 29.5-44.5 6/6/2000 70,000 D 10,000 UD 1,000 JD 10,000 UD 50,000 UD 10,000 UD 10,000 UD 10,000 UD 10,000 UD 10,000 UD 10,000 UD
W-17s Source Shallow 29.5-44.5 11/28/2000 150,000 D 570 JD 930 JD 1,000 UD 20,000 D 1,000 UD 1,000 UD 1,000 UD 1,000 UD 1,000 UDJ 1,000 UD
W-17s Source Shallow 29,5-44,5 4/24/2001 110,000 D 2,000 UD 770 JD 2,000 UD 10,000 UD 2,000 UD 2,000 UD 2,000 UD 1,000 UD 2,000 UD 2,000 UD
W-18s Background ShaUow 22.5-37.5 12/11/1995 6.00 6.00 0.80 J 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 0.60 J 1.00 U 1.00 U
W-18s Background ShaDow 22.5-37.5 4/30/1998 3.5 1.0 U 1.0 U 1.0 U 6.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 12/16/1998 4 J 1.0 U 1.0 U 1.0 U NR 1.0 U 1.0 U 1.0 UJ 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 6/8/1999 3.8 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 12/6/1999 1.7 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Sh~low 22.5-37.5 6/6/2000 3.1 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shanow 22.5-37.5 11/28/2000 0.45 J 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 4/23/2001 2.0 1,0 U 1,0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-19s North Plume ShaUow 17-27 12/14/1995 26.00 4.00 1.00 J 2.00 U 10.00 U 2.00 U 0.40 J 2.00 U 0.30 J 2.00 U 2.00 U
W-19s North Plume Shallow 17-27 5/5/1998 26 D 1.2 DJ 0.82 DJ 2.5 UD 12 UD 2.5 UD 2.5 UD 2.5 UD 0.56 DJ 2.5 UD 2.5 UD
W-19s North Plume Shallow 17-27 12/17/1998 250 J 5 4.0 U 1.0 U NR 1.0 U 1.0 UD 0.3 J 1.0 J 1.0 U 1.0 U
W-19s North Plume Shallow 17-27 6/10/1999 330 D 7.4 JD 10 UD 20 UD NR 20 UD 20 UD 20 UD 20 UD 20 UD 20 UD
W-19s North Plume Shallow 17-27 12/7/1999 420 D 11 JD 22 D 20 UD 100 UD 20 UD 20 UD 20 UD 20 UD 20 UD 20 UD
W-19s North Plume Shallow 17-27 6/6/2000 620 D 13 D 25 D 5.0 UD 25 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD
W-19s North Plume Shallow 17-27 11/28/2000 2,200 D 14 JD 25 JD 50 UD 1,000 D 50 UD 50 UD 50 UD 50 UD 50 UD 50 UD
W-19s Dup North Plume ShaDow 17-27 11/28/2000 2,200 D 17 30 D 1.0 U 5.0 U 1.0 U 1.0 U 1.1 1.7 U 1.0 U 1.0 U
W-19s North Plume Shallow 17-27 4/24/2001 750 D 12 JD 22 D 20 UD 100 UD 20 UD 20 UD 20 UD 20 UD 20 UD 20 UD
W-20s North Plume ShaDow 4-14 12/12/1995 3.00 0.50 J 0.80 J 1.00 U 7.00 U 1.00 U 1.00 U 0.20 J 0.20 J 1.00 U 1.00 U
W-20s Oup North Plume Sha!low 4-14 4/29/1998 17 0.8 J 3.1 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 0.21 J 1.0 U 1.0 U
W-20s North Plume Shallow 4-14 4/29/1998 20 0.89 J 3.4 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 0.23 J 1.0 U 1.0 U
W-20s North Plume Shallow 4-14 12/20/1998 27 DJ 1.3 4 J 1.0 U NR 1.0 U 1.0 U 0.1 J 0.2 J 1.0 U 1.0 U
W-20s North Plume Shallow 4-14 6/8/1999 48 D 1.9 JD 5.1 D 2.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD
W-20s Dup North Plume Shallow 4-14 1217/1999 42 D 3.1 D 8.3 D 2.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD
W-20s North Plume Shallow 4-14 12/7/1999 40 D 2.9 D 8.4 D 2.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD
W-20s Dup North Plume Shallow 4-14 6/812000 31 D 1.8 5.6 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-20s North Plume ShaDow 4-14 6/8/2000 35 D 1.3 JD 4.8 JD 5.0 UD 25 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD
W-20s North Plume ShaUow 4-14 11/29/2000 120 D 5.5 D 11 D 5.0 UD 75 D 5.0 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UDJ 5.0 UD
W-20s North Plume Shallow 4-14 4/24/2001 100 D 4.7 D 10 D 2.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD 2.0 UD 2,0 UD 2.0 UD
P:\Proj\ 18895118895.016\apr-01-IA01 Page 6 of 51
----- -- --- -- --- - ---Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Com,eounds
Well cis-1,2-
Saeened Sampling T etrachloro-Trichloro-Dichloro-Carbon Carbon Chloro-1, 1-Dichloro-
Monitoring Well Zone Well Type Depth Date ethene ethene ethene Vinyl chloride Acetone Benzene disulfide tetrachloride Chloroform methane ethane
(ft) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 0.7 2.8 70 0.015 0.3 0.19
W-20i North Plume Intermediate 84-94 312511996 240.00 13.00 J 29.00 20.00 U 100.00 U 20.00 U 20.00 U 20.00 U 20.00 U 20.00 U 20.00 U
W-20i North Plume Intermediate 84-94 4/29/1998 310 DJ 18 JD 25 J 2.0 UJ 10 UJ 2.0 UJ 0.48 J 2.0 UD 0.77 J 2.0 UJ 2.0 UJ
W-20i North Plume Intermediate 84-94 12/1511998 1,100 D 75 D 120 D 50 UD NR 50 UD 14 DJ 50 UD 5 JD 50 UD 50 UD
W-20i North Plume Intermediate 84-94 1/26/1999 450 D 34 D 29 D 1.0 U 5.0 U 0.08 J 1.0 U 0.4 J 1.0 U 0.3 J
W-20i North Plume Intermediate 84-94 1/2711999 380 D 29 D 24 D 20 UD 100 UD 20 UD 20 UD 20 UD 20 UD 20 U 20 UD
W-20i North Plume Intermediate 84-94 6/8/1999 440 D 30 JD 23 JD 50 UD 250 UD 50 UD 50 UD 50 UD 50 UD 50 UD 50 UD
W-20i North Plume Intermediate 84-94 12/7/1999 270 D 25 JD 19 JD 50 UD 250 UD 50 UD 50 UD 50 UD 50 UD 50 UD 50 UD
W-20i North Plume Intermediate 84-94 6/8/2000 230 D 20 16 0.19 J 5.0 U 1.0 U 1.1 1.0 U 1.0 U 1.0 U 1.0 U
W-20i Dup (field) North Plume Intermediate 84-94 11/30/2000
W-20i North Plume Intermediate 84-94 11/30/2000 360 BDJ 36 E 22 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 UJ 1.0 U 1.0 U
W-20I North Plume Intermediate 84-94 4/24/2001 300 D 50 UD 19 JD 50 UD 250 UD 50 uo 50 UD 50 UD 50 UD 50 UD 50 UD
W-20d' North Plume Deep 152-166 9/23/1998 34 D 4.9 9.4 1.0 U 22 1.0 U 1.0 U 0.50 U 1.0 U 1.0 U
W-20d North Plume Deep 152,166 12/17/1998 12 J 2 0.02 J 1.0 U 12 J 0.07 J 1.0 U 1.0 UJ 1.0 U 1.0 U 1.0 U
W-20d North Plume Deep 152-166 6/9/1999 4.3 2.0 1.2 1.0 U 8.4 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-20d North Plume Deep 152-166 12/9/1999 5.8 3.1 1.6 1.0 U 13 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-20d North Plume Deep 152-166 6/9/2000 1.7 1.4 1.3 1.0 U 11 U 1.0 U 1.0 U 1.0 U 1.0 U 0.18 J 1.0 U
W-20d North Plume Deep 152-166 11/29/2000 4.6 2.7 1.3 1.0 U 9.5 1.0 U 1.0 U 1.0 U 1.0 U 1.0 UJ 1.0 U
W-20d North Plume Deep 152-166 4/25/2001 3.0 2.4 1.6 1.0 U 5.0 U 0.48 J 1.0 U 1.0 U 1.0 U 0.15 J 1.0 U
W-21s North Plume ShaDow 10-20 12/12/1995 0.80 J 7.00 0.60 J 1.00 U 6.00 U 1.00 U 1.00 U 1.00 U 0.40 J 1.00 U 1.00 U
W-21s North Plume Shallow 10-20 5/17/2001 0.23 J 1.0 U 1.0 U 1.0 U NR 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-22s South Plume Shallow 20-35 12/14/1995 4.00 3.00 1.00 J 0.30 J 6.00 U 1.00 U 1.00 U 1.00 U 0.30 J 1.00 U 0.70 J
W-22s South Plume ShaDow 20-35 5/1/1998 3.6 0.12 J 2.5 0.45 J 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.1
W-22s South Plume Shallow 20-35 12/20/1998 4 1.0 U 2 J 0.4 J NR 1.0 U 1.0 U 1.0 UJ 1.0 U 0.1 J 0.6 J
W-22sd South Plume Shallow 20-35 12/8/1999 11 0.20 J 2.1 0.43 J 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0
W-22s Sooth Plume ShaDow 20-35 6/7/2000 5.8 1.0 U 1.0 U 0.23 J 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-22i South Plume Intermediate 57-67 3/2511996 170.00 16.00 90.00 10.00 U 50.00 U 10.00 U 10.00 U 10.00 U 10.00 U 10.00 U 47.00
W-22i South Plume Intermediate 57-67 511/1998 150 D 11 100 D 2.1 5.0 U 0.28 J 1.0 U 1.0 U 0.54 J 1.0 U 46 D
W-22i South Plume Intermediate 57-67 12/20/1998 110 J 10 D 140 J 3 DJ NR 10 U 10 UD 10 UD 0.8 J 10 UJ 58 J
W-22i South Plume Intermediate 57-67 6/9/1999 86 D 11 D 96 D 10 UD NR 10 UD 10 UD 10 UD 1_0 UD 10 UD 46 D
W-22i Dup South Plume Intermediate 57-67 12/8/1999 63 D 8.2 JD 73 D 1.4 JD 50 UD 10 UD 10 UD 10 UD 10 UD 10 UD 38 D
W-22i South Plume Intermediate 57-67 12/8/1999 65 D 8.5 JO 770 10 UD 50 UD 10 UD 10 UD 10 UD 10 UD 10 UD 40 D
W-23s Dup South Plume Shallow 25-40 1/29/1996 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-23s South Plume Shallow 25-40 1/29/1996 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U
W-23s South Plume Shallow 25-40 5/23/2001 1.0 U 1.0 U 1.0 U 1.0 U NR 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
P:IProj\ 16B95\16695.016\apr-01-tA01 Page 7 of 51
-- - -- --- -- -- --- - - --Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well cis-1,2-
Screened Sampm19 T etrachloro-Tnchloro-Dichloro-Carbon Carbon Chiaro-1, 1-Dichloro-
Monitoring Well Zone Well Type Depth Date elhene ethene ethene Vinyl chloride Acetone Benzene disulfide tetrachloride Chloroform methane ethane
(ft) (µg/l) (µg/l) (µgll) (µg/l) (µg/l) (µgll) (µg/l) (µg/l) (µgll) (µg/l) (µgll)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan: 0.7 2.8 70 0.015 0.3 0.19
W-24s South Plume ShaUow 5-20 12/13/1995 1.00 2.00 0.30 J 1.00 U 7.00 U 1.00 U 1.00 U 1.00 U 0.20 J 1.00 U 0.30 J
W-24s South Plume Shallow 5-20 51111998 0.35 J 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-24s Dup South Plume Shallow 5-20 1/2711999 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 0.06 J 1.0 U 0.2 J
W-24s South Plume Shallow 5-20 112711999 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 0.1 J 1.0 U 0.2 J
W-24s South Plume Shallow 5-20 619/1999 0.50 J 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-24s South Plume Shallow 5-20 12/811999 1.9 1.0 U 0.25 J 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 0.30 J
W-24s South Plume Shallow 5-20 61712000 0.55 J 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-24s South Plume ShaUow 5-20 11/2912000 1.8 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 UJ 1.0 U
W-24s South Plume Shallow 5-20 412512001 0.47 J 1.0-U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-25s Dup Side Gradient Shallow 10-25 12/12/1995 1.00 U 6.00 0.50 J 1.00 U 7.00 U 1.00 U 1.00 U 1.00 U 0.40 U 1.00 U 1.00 U
W-25s Side Gradient Shallow 10-25 12/12/1995 1.00 U 3.00 0.30 J 1.00 U 7.00 U 1.00 U 0.20 J 1.00 U 0.40 J 1.00 U 1.00 U
W-25s Side Gradient Shallow 10-25 5117/2001 0.13 J 1.0 U 1.0 U 1.0 U NR 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-26i Dup Side Gradient Intermediate 103-118 12/14/1995 2.00 2.00 0.20 J 1.00 U 8.00 U 1.00 U 1.00 U 1.00 U 0.20 J 1.00 U 1.00 U
W-26i Side Gradient Intermediate 103-118 12/14/1995 2.00 2.00 0.20 J 1.00 U 9.00 U 1.00 U 0.80 J 1.00 U 0.30 J 1.00 U 1.00 U
W-26i Side Gradient -Intermediate 103-118 12/16/1998 0.3 J 0.09 J 0.03 U 0.2 J 3 J 0.1 J 0.4 J 1.0 UJ 1.0 U 1.0 U 1.0 U
W-26I Side Gradient Intermediate 103-118 5117/2001 0.35 J 1.0 U 1.0 U 0.17 J 5.0 W 1.0 U 0.20 J 1.0 U 1.0 U 0.22 J 1.0 U
W-261 □up Side Gradient Intermediate 103-118 5117/2001 0.32 J 1.0 U 1.0 U 0.14 J 5.0 W 1.0 U 0.21 J 1.0 U 1.0 U 1.0 U 1.0 U
W-27s South Plume ShaDow 25-40 12/12/1995 1.00 U 2.00 0.10 U 1.00 U 7.00 U 1.00 U 1.00 U 1.00 U 0.20 U 1.00 U 1.00 U
W-27s South ~lume Shallow 25-40 5122/2001 0.71 J 1.0 U 1.0 U 1.0 U NR 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-28i Dup North Plume Intermediate 73-88 12119/1995 220.00 32.00 11.00 10.00 U 22.00 U 10.00 U 10.00 U 10.00 U 4.00 J 10.00 U 10.00 U
W-28i North Plume Intermediate 73-88 12/1911995 230.00 32.00 12.00 10.00 U 50.00 U 10.00 U 10.00 U 10.00 U 4.00 J 10.00 U 10.00 U
W-28i North Plume Intermediate 73-88 51511998 170 D 42 D 16 D 10 UD 50 UD 10 UD 10 UD 10 UD 10 UD 10 UD 10 UD
W-28i North Plume Intermediate 73-88 12/18/1998 640 D 24 D 9.0 OJ 10 UD NR 10 UD 10 UD 2 JD 2 JD 100 U 10 UD
W-28i North Plume Intermediate 73-88 61811999 250 D 40 JD 15 JD 50 UD 250 UD 50 UD 50 UD 50 UD 50 UD 50 UD 50 UD
W-28i 'North Plume Intermediate 73-88 1217/1999 310 D 43 D 14 JD 50 UD 250 UD 50 UD 50 UD 50 UD 50 UD 50 UD 50 UD
W-28i North Plume Intermediate 73-88 6/612000 580 D 33 D 11 D 5.0 UD 25 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD 5.0 UD
W-28i North Plume Intermediate 73-88 1112912000 860 D 52 D 12 JD 50 UD 970 D 50 UD 50 UD 50 UD 50 UD 50 UOJ 50 UD
W-28I North Plume Intermediate 73-88 4125/2001 720 D 35 D 12 JD 20 UD 100 UD 20 UD 20 UD 20 UD 20 uo 20 UD 20 uo
W-28d North Plume Deep 234-249 5117/2001 0.34 J 1.0 U 1.0 U 1.0 U 21 UJ 1.0 U 0.33 J 1.0 U 1.0 U 1.0 U 1.0 U
P:\Proj\1889S\18B9S,016\apr-01-IA01
Page 8 of 51
-- ----- ---- -- ------
Well Information
Monitoring Well Zone Well Type
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
WeU
Screened
Depth
(fi)
Sampling
Date
T etrachloro-
elhene
(µ9/L)
Trich!oro-
elhene
(µ9/L)
cis-1,2-
Dichloro-
ethene
(µ9/L)
Vinyt chloride
(µ9/L)
Volatile Organic Compounds
Acetone
(µ9/L)
Benzene
(µ9/L)
Carbon
disulfide
(µ9/L)
Carbon
tetrachloride
(µ9/L)
FCX OU3 Groundwater Performance Standards per the RA Work Plan: 0.7 1.8 70 0.015 0.3
W-19i Dup
W-29i
W-29i
W-29i Oup
W-19i
W-29i Dup
W-19i
W-19i Dup
W-29i
W-29i Dup
W-29i
W-29i
W-19i Dup (W-GB)
W-191
W-30i
W-30i
W-30i
W-30i
W-30i
W-30i
W-30i
W-30i
W-30i
W-30i
W-31s
.W-31s Dup
W-31s
W-31s Dup
W-31s
W-31s d
W-31s d
W-31s
W-31s Dup
W-31s
W-31s
W-31s
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
South Plume
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
South Plume Intermediate
South Plume Intermediate
South Plume Intermediate
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
North Plume
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Shallow
ShaDow
Shallow
Shanow
ShaUow
Shallow
ShaDow
Shallow
ShaDow
Shallow
ShaUow
Shallow
P:\Pn:,j\1 S895\1S895.016\apr-01-1All1
88-98
88-98
88-98
_88-98
88-98
88-98
88-98
88-98
88-98
88-98
88-98
88-98
88-98
88-98
37.5-47.5
37.5-47.5
37.5-47.5
37.5-47.5
37.5-47.5
37.5-47.5
37.5-47.5
37.5-47.5
37.5-47.5
37.5-47.5
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
11/13/1995
11/13/1995
51111998
11120/1998
1112011998
6/911999
6/911999
1119/1999
111911999
6{1/2000
61711000
1112912000
412412001
412412001
11/1911995
4130/1998
11/1911998
1126/1999
112711999
6/911999
11/811999
61711000
11119/2000
412412001
111111998
11/1911998
11119/1998
11/1611998
11/16/1998
61711999
6/1011999
11/611999
11/16/1999
615/1000
11/2712000
4123/1001
13.00
15.00
41 D
34 DJ
31 J
49 D
50 D
50 D
51 D
55 D
60 D
56 BDJ
78
60 D
530.00
500 D
560 DJ
1,100 D
1,100 D .
1,100 D
1,100 D
810 D
1,900 D
2,300 D
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
0.16 J
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.00
0.80 J
1.4 DJ
1 DJ
1 JD
5.3 D
5.0 D
1.6 JD
2.7 JD
2.6
1.7 JD
3.1 JD
6.4
5.7 D
18.00 J
34 D
46 D
81 D
85 D
71 D
71 JD
59 D
140 D
110 D
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
5.00
3.00
8 D
7 DJ
7 DJ
7.8 D
7.9 D
7.8 D
8.1 D
11
9.8 D
9.3 D
11
9.6 D
18.00 J
10 D
18 JD
43 JD
41 JD
34 JD
33 JD
34 D
55 JD
64 D
1.0 U
0.06 J
1.0 U
0.06 J
0.04 J
1.0 U
1.0 U
1.0 U
0.06 J
1.0 U
1.0 U
1.0 U
1.00 U
1.00 U
1.5 UD
0.1 DJ
0.1 DJ
1.0 UD
1.0 UD
5.0 UD
5.0 UD
1.0 U
5.0 UD
5.0 UDJ
0.11 J
2.0 UD
50.00 U
1.5 UD
10 UD
0.1 J
50 UD
50 UD
100 UD
5.0 UD
100 UD
5.0 UD
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
5.00 U
5.00 U
11 UD
NR
NR
NR
NR
25 UD
15 UD
5.0 U
15 UD
15 UD
5.0 U
10 UD
150.00 U
10 UD
NR
5.0 U
150 UD
NR
500 UD
15 UD
1,000 D
25 UD
5.0 U
5.0 U
5.0 U
NR
NR
5.0 U
NR
5.0 U
NR
5.0 U
5.0 U
5.0 U
1.00 U
1.00 U
1.5 UD
1.0 UD
1.0 UD
1.0 UD
1.0 UD
5.0 UD
5.0 UD
1.0 U
5.0 UD
5.0 UD
1.0 U
2.0 UD
50.00 U
1.5 UD
20 UD
0.1 J
50 UD
50 UD
100 UD
5.0 UD
100 UD
5.0 UD
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.00 U
1.00 U
1.5 UD
1.0 UD
1.0 UD
1.0 UD
1.0 UD
5.0 UD
5.0 UD
1.0 U
5.0 UD
5.0 UD
1.0 U
2.0 UD
50.00 U
1.5 UD
10 UD
1.0 U
50 UD
50 UD
100 UD
5.0 UD
100 UD
5.0 UD .
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.00
0.70 J
1.5 UD
1.0 UD
0.4 JD
1.0 UD
1.0 UD
5.0 UD
5.0 UD
0.68 J
5.0 UD
5.0 UD
023 J
023 JD
50.00 U
1.5 UD
10 UD
1.0 U
50 UD
50 UD
100 UD
5.0 UD
100 UD
5.0 UD
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
Chloroform
(µ9/L)
0.19
1.00
0.80 J
1.1 DJ
1 DJ
1 J
0.83 JD
0.91 JD
5.0 UD
5.0 UD
1.0 U
5.0 UD
1.1 JD
1.2 U
2.0 UD
6.00 J
1.5 UD
10 UD
0.4 J
50 UD
50 UD
100 UD
5.0 UD
100 UD
5.0 UD
0.15 J
0.19 J
0.15 J
0.04 J
0.05 J
1.0 U
1.0 U
1.0 U
0.04 U
1.0 U
1.0 U
1.0 U
Chloro-
melhane
(µ9/L)
1.00 U
1.00 U
1.5 UD
1.0 UDJ
1.0 UJ
1_.0 UD
1.0 UD
5.0 UD
5.0 UD
1.0 U
5.0 UD
5.0 UD
1.0 U
2.0 UD
50.00 U
1.1 DJ
10 U
1.0 U
50 UD
50 UD
100 UD
5.0 UD
100 UDJ
5.0 UD
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1, 1-Dichloro-
ethane
(µ9/l)
4.00
1.00
5.4 D
5 DJ
4 J
4.5 D
4.7 D
6.3 D
6.3 D
7.6
6.9 D
6.6 D
6.3
5.6 D
50.00 U
1.5 UD
10 UD
0.1 J
50 UD
50 UD
100 UD
5.0 UD
100 UD
5.0 UD
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
1.0 U
Page 9 of 51
-- -- - --- -- -------- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well cis-1,2-
Screened Sampling Tetrachloro-Trichloro-Dichloro-Carbon Carton Chiaro-1,1-Dichloro-
Monitoring WeU Zone Well Type Depth Date ethene ethene ethene Vinyl chloride Acetone Benzene disulfide tetracilloride Chlorofonn methane ethane
(It) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 0.7 2.8 70 O.Q15 0.3 0.19
W-31i North Plume Intermediate 34-44 11/1/1998 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-31i North Plume lntennediate 34-44 11/19/1998 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-31i North Plume Intermediate 34-44 12/16/1998 0.1 J 1.0 U 1.0 U 1.0 U NR 1.0 U 1.0 U 1.0 U 0.09 J 1.0 U 1.0 U
W-31i North Plume Intermediate 34-44 6/7/1999 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.2 1.0 U 1.0 U 1.0 U 1.0 U
W-31i North Plume lntennediate 34-44 12/6/1999 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-31i North Plume Intermediate 34-44 6/5/2000 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-31i Dup (fu!ld) North Plume lntennedlate 34-44 11/27/2000
W-31i North Plume Intermediate 34-44 11/27/2000 1.0 U 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U ·1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-31I North Plume Intermediate 34-44 4/23/2001 0.11 J 1.0 U 1.0 U 1.0 U 5.0 U -1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-32i South Plume Intermediate 112-132 11/1/1998 0.26 J 0.11 J 1.0 U 1.0 U 5.o u · 1.0 U 1.0 U 0.14 J 1.0 U 1.0 U
W-32i South Plume lntennediate 112-132 11/19/1998 0.26 J 0.11 J 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 0.14 J 1.0 U 1.0 U
W-3~ South Plume Intermediate 112-132 12/16/1998 0.4 J 0.2 J 1.0 UJ 1.0 U NR 1.0 U 1.0 U 1.0 UJ 1.0 U 1.0 u· 1.0 U
W-32i South Plume · Intermediate 112-132 6/9/1999 0.63 J 0.22 J 1.0 U 1.0 u· 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-32i South Plume Intermediate 112-132 12/7/1999 0.95 J 0.28 J 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-32i South Plume Intermediate 112-132 6/8/2000 0.59 J 1.0 U 1.0 U 1.0 U 5.0 U 1.0 U 2.3 1.0 U 1.0 U 0.13 J 1.0 U
W-32i Dup (field) South Plume Intermediate 112·132 11/28/2000
W·32i South Plume Intermediate 112-132 11/28/2000 1.4 0.38 J 1.0 U 1.0 U 5.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U 1.0 U
W-32I South Plume lntennedlate 112-132 4/26/2001 1.4 0.48 J 0.16 J 1.0 U 5.0 U 1.0 U 0.14 J 1.0 U 1.0 U 1.0 UJ 1.0 U
P:IPl"'J'\18895\18895.016\apr--01-IA01 Page 10 of 51
-- -- ---- - - - ------- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well trans-1,2-
Screened Sampling 1,2-Dichloro-1,1-Dichloro. Dichloro-1,2-Dichloro-Methylene 4-Melhyl-1-' 1, 1, 1-Tlich1on> 1, 1,2-Trichloro-
Monitoring Well Zone wen Type Depth Date ethane elhene ethene propane chloride pentanone Toluene ethane ethane
(ft) (µ9/L) (µ9/L) (µ9/L) (µ9/L) (µ9/L) (µ9/L) (µgll) (µ9/L) (µ9/L)
FCX OUJ Groundwater Perfonnance Standards eer the RA Work Plan: 7 0.56 5
MW-1 South Plume Shallow 41.56-51.56 4/29/1994 15.00 U 16.00 15.00 U 15.00 U 50.00 U 110.00 U 15.00 U 6.00 J 15.00 U
MW-1Dup South Plume Shallow 41.56-51.56 10/10/1994 15.00 U 19.00 15.00 U 15.00 U 50.00 U 110.00 U 15.00 U 5.00 J 15.00 U
MW-1 South Plume Shallow 41.56-51.56 10/10/1994 15.00 U 31.00 15.00 U 15.00 U 10.00 J 110.00 U 3.00 J 6.00 J 15.00 U
MW-1 South Plume Shallow 41.56-51.56 5116/2001 20 UD 11 JD 20 UD 20 UD 40 UD 100 UD 20 UD 20 UD 20 UD
MW-1 South Plume Shallow 41.51-51.51 4129/1994 5.00 U 18.00 5.00 U 5.00 U 10.00 U 15.00 U 5.00 U 14.00 5.00 U
MW-1 South Plume Shanow 41.51-51.51 10/10/1994 5.00 U 16.00 5.00 U 5.00 U 10.00 U 15.00 U 5.00 U 11.00 5.00 U
MW-2 South Plume Shallow 42.52-52.52 5/23/2001 1.0 U 14 12 0.24 J 2.0 U 5.0 U 1.0 U 18 0.81 J
MW-3 South Plume Shallow 43.01-53.01 4/29/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-3 South Plume Shallow 43.01-53.01 9/28/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-3 South Plume Shallow 43.01-53.01 5116/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-4Dup Side Gradient ShaDow 51.43-61.43 4/28/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-4 Side Gradient Shallow 51.43-61.43 4128/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-4 Side Gradient Shallow 51.43-61.43 10/5/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U . 1.00 U
MW-4 Side Gradient Shallow 51.43-61.43 5117/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UB 5.0 U 1.0 U 1.0 U 1.0 U
MW-5s South Plume Shallow 48.03-58.03 4128/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-5s South Plume Shallow 48.03-58.03 10/5/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-5s South Plume Shallow 48.03-58.03 11/11/1995 mo u 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-5s South Plume Shallow 48.03-58.03 5118/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-5d South Plume Intermediate 18.76-30.54 4/19/1994 4.00 U 7.00 4.00 U 4.00 U 8.00 U 10.00 U 4.00 U 0.40 J 4.00 U
MW-5d South Plume Intermediate 18.76-30.54 10/6/1?94 1.00 U 9.00 1.00 U 1.00 U 5.00 U 11.00 U 1.00 U 0.40 J 1.00 U
MW-5d South Plume Intermediate 18.76-30.54 11/13/1995 1.00 U 5.00 1.00 U 1.00 U 4.00 U 10.00 U 1.00 U 0.30 J 1.00 U
MW-5d South Plume Intermediate 18.76-30.54 5/23/2001 1.0 U 8.4 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-6s South Plume Shallow 45.36-55.36 4/18/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-6s South Plume Shallow 45.36-55.36 10/8/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-6s South Plume Shallow 45.36-55.36 5/2211001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-6d Dup South Plume Intermediate 16.8-16.3 4/29/1994 1.00 U 0.40 J 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-6<1 South Plume Intermediate 16.8-16.3 4129/1994 1.00 U 0.70 J 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 0.10 J 1.00 U
MW-6d South Plume Intermediate 16.6-16.3 10/4/1994 1.00 U 0.30 J 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-6d South Plume Intermediate 26.8-16.3 5/12/1001 1.0 U 6.1 1.0 U 0.30 J 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-6d Dup South Plume Intermediate 26.8-16.3 5/2212001 1.0 U 6.0 1.0 U 0.27 J 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-7 South Plume Shallow 37.0-47.0 4/28/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 0.10 J 1.00 U
MW-7 South Plume Shallow 37.0-47.0 9/19/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 11.00 U 1.00 U 1.00 U 1.00 U
MW-7 South Plume Shallow 37.0-47.0 5/2212001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
P:\?n:if\18895\ 1 B89S.0161apr-01-IA01
Page11of51
---- --- -- ---- ----- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile O~anlc Comeounds
Well trans-1,2-
Saeened Sampling 1,2-Dichloro-1,1-Dichloro-Dichiaro-1,2-Didlloro-Methylene 4-Melhyl-2-1,1,1-Trichloro-1,1,2-Trichloro-
Monitoring Well Zone wen Type Depth Dale ethane ethene ethene propane chloride pentanone Toluene ethane ethane
(ft) (µg/l) (µg/l) (µg/l) (µg/l) (µg/l) (µg/l) (µg/l) (µg/l) (µg/l)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 7 0.56 5
MW-8 Side Gradient Shallow 45.88-55.88 4/28/1994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-8 Side Gradient Shallow 45.88-55.88 9/29/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-8 Side Gradient Shallow 45.88-55.88 5116/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-9 Side Gradient Shallow 53.5-83.5 4/2911994 2.00 U 5.00 2.00 U 2.00 U 4.00 U 10.00 U 2.00 U 5.00 2.00 U
MW-9Dup Side Gradient Shallow 53.5-63.5 101711994 5.00 U 0.60 J 0.60 J 5.00 U 25.00 U 25.00 U 5.00 U 17.00 5.00 U
MW-9 Side Gradient Shallow 53.5-63.5 101711994 5.00 U 5.00 U 5.00 U 5.00 U 25.00 U 25.00 U 5.00 U 17.00 5.00 U
MW-9 Side Gradient Shallow 53.5-63.5 5121/2001 1.0 U 52 3.8 0.29 J 2.0 U 5.0 U 1.0 U 24 0.66 J
MW-10 Side Gradient Shallow 50.56-60.56 4/2811994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
MW-10 Side Gradient Shallow 50.56-60.56 9/28/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 0.20 J 1.00 U
MW-10 Side Gradient Shallow 50.56-60.56 512112001 1.0 U 0.16 J 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
MW-11 South Plume Intermediate 4.0-8.0 4/29/1994 5.00 U 10.00 5.00 U 5.00 U 10.00 U 25.00 U 5.00 U 2.00 J 5.00 U.
MW-11 South Plume Intermediate 4.0-8.0 1016/1994 5.00 U 10.00 5.00 U 5.00 U 10.00 U 25.00 U 5.00 U 2.00 J 5.00 U
MW-11 South Plume lntennediate 4.0-8.0 12113/1995 2.00 U 10.00 2.00 U 2.00 U 2.00 U 12.00 U 2.00 U 2.00 J 0.40 J
MW-11 South Plume lntennediate 4.0-8.0 5123/2001 1.0 U 1.3 1.0 U 2.0 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-1s Side Gradient Shanow 34-48 4/2711994 5.00 U 5.00 U 5.00 U 5.00 U 2.00 U 25.00 U 5.00 U 5.00 U 5.00 U
W-1s Dup Side Gradient Shallow 34-48 101611994 5.00 U 5.00 U 5.00 U 5.00 U 5.00 U 25.00 U 5.00 U 5.00 U 5.00 U
W-1s Side Gradient ShaDow 34-48 101611994 5.00 U 5.00 U 5.00 U 5.00 U 10.00 U 25.00 U 5.00 U 5.00 U 5.00 U
W-1s Side Gradient Shallow 38-48 12/19/1998 5.0 UD 20 U 1.0 U 5.0 UD 10 U 25 UD 5.0 UD 5.0 UD 5.0 UD
W-1s Side Gradient Shallow 34-48 5116/2001 5.0 UD 4.0 JD 5.0 UD 5.0 UD 10 UD 25 UD 5.0 UD 5.0 UD 5.0 UD
W-1i Side Gradient lntennediate 65.5-72.5 10/611994 10.00 U 60.00 10.00 U 10.00 U 20.00 U 21.00 J 10.00 U 4.00 J 8.00 J
W-11 Side Gradient lntennediate 65.5-72.5 5116/2001 2.4 88 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.2 6.0
W-2s Side Gradient Shallow 33.5-43.5 4/27/1994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-2s Side Gradient Shallow 33.5-43.5 1015/1994 2.00 U 2.00 U 2.00 U 2.00 U 4.00 U 10.00 U 2.00 U 2.00 U 2.00 U
W-2s Side Gradient Shallow 33.5-43.5 511512001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-2i Side Gradient Intermediate 83-93 101511994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-2I Side Gradient lntennediate 83-93 511512001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 4.3 J 0.44 J 1.0 U 1.0 U
W-3s South Plume ShaRow 34.0-44.0 4/2711994 50.00 U 50.00 U 50.00 U 50.00 U 100.00 U 250.00 U 50.00 U 50.00 U 50.00 U
W-3s SOuth Plume Shallow 34.0-44.0 1011011994 50.00 U 5.00 J 50.00 U 50.00 U 100.00 U 250.00 U 50.00 U 50.00 U 50.00 U
W-3s South Plume Shallow 34.0-44.0 511512001 20 UD 4.1 JD 20 UD 20 UD 40 UD 100 UD 20 UD 20 UD 20 UD
W-4s Dup South Plume ShaDow 34-44 4/2711994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-4s South Plume Shallow 34-44 4/2711994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-4s South Plume Shallow 34-44 9/2811994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 0.10 J 1.00 U
P:\Proj\1 S895\ 16895 016\apr-OUA01 Page 12 of 51
---- -- --- ------- ---Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX.Statesville Superfund Site OU3
Well lnfonnatlon Volatile Organic Comeounds w,u trans-1,2-
Screened Sampling . 1,2-Dichloro-1, 1-Dichloro-Dichiaro-1,2-Dichloro-Methylene 4-Methy\-2-1,1, 1-Trichloro-1,1,2-Trichloro-
Monitoring WeU Zone WeU Type Depth Date ethane ethene ethene propane chloride pentanone Toluene ethane ethane
(ft) (µgn.) (µgn.) (µgn.) (µgn.) (µgn.) (µgn.) (µgn.) (µgn.) (µgn.)
FCX OU3 Groundwater Performance standards eer the RA Wof'X Plan: 7 0.56 5
W-Ss South Plume Shallow 32-42 4127/1994 50.00 U 81.00 50.00 U 50.00 U 50.00 U 250.00 U 50.00 U 150.00 13.00 J
W-5s Dup South Prume ShaDow 32-42 10/11/1994 50.00 U 93.00 50.00 U 50.00 U 39.00 J 250.00 U 7.00 J 170.00 18.00 J
W-5s South Plume Sh~low 32-42 10/11/1994 50.00 U 73.00 50.00 U 50.00 U 32.00 J 250.00 U 50.00 U 140.00 11.00 J
W-5s South Plume ShaDow 32-42 4130/1998 3.8 J 83 J 3.1 J 2.4 J 3.4 J 25 UJ 5.0 UJ 140 DJ 13 J
W-5s South Plume Shallow 32-42 12/17/1998 200 UJ 76 J 200 UJ 200 UJ 400 UJ 1,000 UJ 200 UJ 85 J 200 UJ
W-5s b South Plume ShaDow 32-42 6/9/1999 100 UD 72 JD 100 UD 100 UD 200 UD 500 UD 100 UD 94 JD 100 UD
W-5s South Plume Shallow 32-42 12/7/1999 100 UD 73 JD 100 UD 100 UD 200 UD 500 UD -100 UD 130 D 100 UD
W-5s Dup South Plume Shallow 32-42 12/17/1999 50 UD 100 D 50 UD 50 UD 100 UD 250 UD 50 UD 110 D 10 JD
W-5s South Plume Shallow 32-42 6/6/2000 100 UD 64 JD 100 UD 100 UD 200 UDJ 500 UD 100 UD 110 D 100 UD
W-5s South Plume ShaDow 32-42 1112812000 100 UD 140 D 100 UD 100 UD 39 JD 500 UD 100 UD 190 D 100 UD
W-5s South Plume Shallow 32-42 412312001 10 UD 68 D 22 JD 1.6 JD 20 UD 50 UD 10 UD 120 D 5.5 JD
W-Si South Plume Intermediate 56-66 10/11/1994 10.00 U 3.00 J 10.00 U 10.00 U 4.00 J 50.00 U 10.00 U 2.00 J 10.00 U ·
W-Si South Plume Intermediate 56-66 5/5/1998 5.0 UD 3.6 DJ 5.0 UD 5.0 UD 10 UD 25 UD 5.0 UD 5.0 UD 5.0 UD
W-5i South Plume Intermediate 56-66 12/19/1998 1.0 U 4 1.0 UD 1.0 U 2.0 UJ 5.0 U 0.40 J 1.0 U 1.0 U
W•5l South Plume Intermediate 56-66 6/8/1999 2.0 UD 4.6 D 2.0 UD 2.0 UD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD
W•5i South Plume Intermediate 56-66 12/8/1999 5.0 UD 7.2 D 5.0 UD 5.0 UD 10 UD 25 UD 5.0 UD 5.0 UD 5.0 UD
W•5i0up South Plume Intermediate 56-66 6/912000 5.0 UD 11 D 5.0 UD 5.0 UD 10.0 UDJ 25 UD 5.0 UD 5.0 UD 5.0 UD
W-5I South Plume Intermediate 56-66 6/912000 5.0 UD 11 D 5.0 UD 5.0 UD 10.0 UDJ 25 UD 5.0 UD 5.0 UD 5.0 UD
W-5i South Plume Intermediate 56-66 11/3012000 5.0 UD 12 D 5.0 UD 5.0 UD 10.0 UBD 25 UD 5.0 UD 5.0 UD 5.0 UD
W-5I South Plume Intermediate 56-66 412312001 2.0 UD 8.0 D 2.0 UD 2.0 UD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD
W-6s Dup Side Gradient Shallow 22-37 10/12/1994 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 120.00 U 25.00 U 25.00 U 25.00 U
W-6s Side Gradient ShaDow 22-37 10/12/1994 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 120.00 U 25.00 U 25.00 U 25.00 U
W•6S Dup Side Gradient Shallow 22-37 4/30/1998
W-6s Side Gradient Shallow 22-37 4/30/1998
W-6s Side Gradient Shallow 22-37 5/1512001 10 UD 1.4 JD 10 UD 10 UD 20 UD 50 UD 10 UD 10 UD 10 UD
W-7s North Plume Shanow 15-30 10/12/1994 120.00 U 120.00 U 120.00 U 120.00 U 120.00 U 620.00 U 120.00 U 120.00 U 120.00 U
W-7s North Plume Shallow 15-30 5/16/2001 50 UD 50 UD 50 UD 50 UD 100 UD 250 UD 50 UD 50 UD 50 UD
W•8S Side Gradient Shallow 20-35 10/11/1994 1.00 U 1.00 U 1.00 u. 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-6s Side Gradient Shallow 20-35 1/10/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-8s Side Gradient Shallow 20-35 12/12/1995 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 0.10 J 1.00 U 1.00 U
W-8s Side Gradient Shallow 20-35 5/1512001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-8i Side Gradient Intermediate 83-93 10/11/1994 25.00 U 25.00 U 25.00 U 7.00 J 50.00 U 120.00 U 25.00 U 25.00 U 25.00 U
W-8i Side Gradient Intermediate 83-93 1/11/1995 25.00 U 25.00 U 25.00 U 6.00 J 50.00 U 120.00 U 25.00 U 25.00 U 25.00 U
W-8i Side Gradient Intermediate 83-93 12/14/1995 5.00 U 5.00 U 5.00 U 5.00 J 5.00 U 25.00 U 5.00 U 5.00 U 5.00 U
W-8i Side Gradient Intermediate 83-93 12/16/1998 1.0 U 0.07 J 0.1 J 5 2.0 U 5.0 U 0.9 JB 1.0 U 1.0 U
W-8I Side Gradient lntennedlate 83-93 5/1512001 1.0 U 1.0 U 1.0 U 4.4 2.0 U 5.0 U 0.45 J 1.0 U 1.0 U
P:\Prtlf, 1889511 8895.01 6\apr-01-IA01 Page 13 of 51
-------------------Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Com~ounds
Well trans•1,2-
Screened SampOng 1,2-0ichloro-1, 1-Dichloro-Dichloro-1,2-Dichloro-Methylene 4-Methyl-2· 1,1,1-Trichloro-1,1,2-Trichloro,
Monitoring Well Zone WeUType Depth Date ethane ethene ethene propane chloride pentanone Toluene ethane ethane
(ft) (µg/1.) (jJg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (µg/1.) (jJg/1.) (µg/1.)
FCX OUJ Groundwater Perfonnance Standards eer the RA Work Plan: 7 0.56 5
W-9s Treatment Shallow 34-49 10/1111994 500.00 U 500.00 U 500.00 U 500.00 U 1,000.00 U 2,500.00 U 500.00 U 500.00 U 500.00 U
W-9s Dup Treatment Shallow 34-49 51511998 10 UD 10 UD 10 UD 10 UD 20 UD 50 UD 10 UD 10 UD 10 UD
W-9s Treatment Shallow 34-49 51511998 10 UD 10 UD 10 UD 10 UD 20 UD 50 UD 10 UD 10 UD 10 UD
W-9s Treatment Shanow 34-49 12/1711998 200 UD 200 UD 200 UD 200 UD 400 U 1,000 UD 200 UD 200 UD 200 UD
W-9s Treatment Shallow 34-49 5115/2001 50 UD 50 UD 50 UD 50 uo 100 UD 250 UD 50 UD 50 uo 50 uo
W-9i Treatment Intermediate 81·91 1011111994 5.00 U 0.60 J 5.00 U 5.00 U 10.00 U 25.00 U 5.00 U 1.00 J 5.00 U
W-9I Treatment Intermediate 81-91 5115/2001 1.0 U . 1.0 U 1.0 U 1.0 U 2.0 UB 5.0 U 1.0 U 1.0 U 1.0 U
W-10s South Plume ShaUow 20-35 101711994 200.00 U 200.00 U 200.00 U 200.00 U 400.00 U 1,000.00 U 200.00 U 200.00 U 200.00 U
W-10s South Pllme Shallow 20-35 111011995 25.00 U 25.00 U 25.00 U 25.00 U 50.00 U 120.00 U 25.00 U 25.00 U 25.00 U
W-10s South Plume Shallow 20-35 12/1411995 10.00 U 10.00 U 10.00 U 10.00 U 20.00 U 50.00 U 10.00 U 10.00 U 10.00 U
W-10s South Plume Shallow 20-35 5116/2001 1.0 U 1.0 U 1.0 U 1.0 U · 2.0 U 5.0 U 1.0 U 1.0 u 1.0 U
W-10i Side Gradient Intermediate 59-69 101711994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-10i Side Gradient Intermediate 59-.9 1111/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-10i Side Gradient lntennediate 59-.9 12/12/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 0.10 J 1.00 U 1.00 U
W-10i Side Gradient Intermediate 59-69 4/30/1998 1.0 U 1.0 U 1.0 U 1.0 U 4.1 5.0 U 1.0 U 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-69 1211911998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 UJ 1.0 UJ 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-69 61811999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-.9 12/911999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U · 1.0 U 1.0 U
W-10i Side Gradient Intermediate 59-.9 61612000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-1 Oi Dup (field) Side Gradient Intermediate 59-69 11/28/2000
W-10i Side Gradient Intermediate 59-69 11/28/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-10I South Plume lntennediate 59-69 4124/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UB 5.0 U 1.0 U 1.0 U 1.0 U
W-11s Dup Side Gradient Sh~iow 25-40 101511994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-11s Side Gradient Shallow 25-40 101511994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-11s Side Gradient Shallow 25-40 111011995 t.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-11s Side Gradient Shanow 25-40 4/3011998
W-11s Side Gradient Shallow 25-40 5117/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-12s Background ShaDow 18-33 101411994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-12s Dup Background ShaUow 18-33 1/1011995 1.00 U 1.00 U t.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-12s Background Shallow 18-33 1110/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-12s Background Shallow 18-33 4130/1998 1.0 U 1.0 U 1.0 U 1.0 U 0.61 J 5.0 U 1.0 U 1.0 U 1.0 U
W-12s Background ShaDow 18-33 12/811999
P:\Pmj'\18895\ \ 8895 016\apr.01-tAO\
Page 14 of 51
---- -- -------------Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well trans-1,2-
Screened Sampling 1,2-Dichloro-1,1-Dichloro-Dichiaro-1,2-Dichloro-Methylene 4-Melhye2-1,1,1-Trich!oro-1,1,2-Trichtoro-
Monitoring Well Zone Well Type Depth Date ethane ethene ethene propane chloride pentanone Toluene ethane ethane
(ft) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L)
FCX OUJ Groundwater Perfonnance Standards eer the RA Work Plan: 7 0.56 5
W-12i Dup Background Intermediate 73-83 10/4/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-12i Background Intermediate 73-83 10/4/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-12i Background Intermediate 73-83 1/11/1995 1.00 U 0.10 J 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-12i Background Intermediate 73-83 4/30/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 1.1 J 0.24 J 1.0 U 1.0 U
W-12i Background lnt~rmediate 73-83 12/16/1998 1.0 U 0.2 J 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-12i Background Intermediate 73-83 617/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-12i Background Intermediate 73-83 12/9/1999 1.0 U 0.17 J 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-12i Background 1ntennediate 73-83 6/7/2000 1.0 U 1.0 U · 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-12i Background Intermediate 73-83 11/29/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-12I Background Intermediate 73-83 4/25/2001 1.0 U 0.10 J 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-13i Dup Side Gradient Intermediate 70-80 10/3/1994 2.00 U 2.00 J 2.00 U 2.00 U 3.00 U 10.00 U 2.00 U 2.00 U 2.00 U
W-13i Side Gradient Intermediate 70-80 10/311994 2.00 U 2.00 J 2.00 U 2.00 U 1.00 U 10.00 U 2.00 U 2.00 U 2.00 U
W-13I Side Gradient Intermediate 70-80 5/22/2001 1.0 U 1.4 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 0.20 J 1.0 U .
W-14s Dup Side Gradient Shallow 37-52 9/29/1994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-14s Side Gradient ShaDow 37-52 9/29/1994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-14s Side Gradient Shallow 37-52 1/10/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-14s Side Gradient Shallow 37-52 5/18/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-14i Side Gradient Intermediate 105-115 9/30/1994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-14i Side Gradient Intermediate 105-115 1/10/1995 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 2.00 U 1.00 U 1.00 U
W-14I Side Gradient Intermediate 105-115 5/23/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 0.19 J 1.0 U 1.0 U
W-15s Side Gradient Shallow 30-45 9/29/1994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-15s Side Gradient ShaTiow 3045 1/10/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W,15s Side Gradient Shallow 30-45 5/18/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-15i Dup Side Gradient Intermediate 71-81 9/30/1994 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-15i Side Gradient Intermediate 71-81 9/30/1994 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-15i Side Gradient Intermediate 71-81 1/10/1995 2.00 U 2.00 U 2.00 U 2.00 U 5.00 U 12.00 U 2.00 U 2.00 U 2.00 U
W-15I Side Gradient Intermediate 71-81 6/26/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-15I Dup Side Gradient Intermediate 71-81 6/26/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 W 5.0 U 1.0 U 1.0 U 1.0 U
W-16s Treatment Shailow 35-50 10/11/1994 250.00 U 250.00 U 250.00 U 250.00 U 500.00 U 1,200.00 U 250.00 U 250.00 U 250.00 U
W-16s Treatment Shallow 35-50 5/5/1998
W-16s Treatment Shallow 35-50 12/17/1998 200 UD 200 UD 200 UD 200 UD 400 UD 1,000 UD 200 UD 200 UD 200 UD
W-16s Treatment Shallow 35-50 5/16/2001 50 UD 50 UD 50 UD 50 UD 100 UD 250 UD 50 UD 50 UD 50 UD
W-16i Treatment Intermediate 77-87 10/11/1994 100.00 U 100.00 U 100.00 U 24.00 J 200.00 U 500.00 U 100.00 U 100.00 U 100.00 U
W-16i Treatment Intermediate 77-87 5/5/1998
W-16i Treatment Intermediate 77-87 12/17/1998 0.9 DJ 0.4 DJ 2.0 UD 20 D _4.0 UJ 10 UD 2.0 U 2.0 UD 2.0 UD
W-161 Treatment Intermediate 77-87 5/18/2001 5.0 UD 5.0 UD 5.0 UD 2.0 JD 10 UD 25 UD 5.0 UD 5.0 UD 5.0 UD
P:\Pn:ij\ 16895118895.D 16\ilpr-01-IA01 Page 15 of 51
-- --11!!1 - -----.. _, -- ----Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well lnfonnatlon Volatile Organic Coineounds
WeU trans-1,2-
Screened Sampling 1,2-Dichloro-1, 1-Dichloro-Dichloro-1,2-Dichloro-Methylene 4-Methy,2· 1, 1, 1-Trich1oro-1, 1,2-Trichtor<>
Monitoring WeU Zone WeUType Depth Date ethane elhene ethene propane chloride pentanone Toluene ethane ethane
(fl) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 7 o.56· 5
W-17s Source Shallow 29.5-44.5 10/11/1994 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 8,000.00 U 20,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U
W-17s Source Shallow 29.5-44.5 111011995 4,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U 8,000.00 U 20,000.00 U 4,000.00 U 4,000.00 U 4,000.00 U
W-17s Source Shallow 29.5-44.5 51511998 250 UD 250 UD 250 UD 57 DJ 500 UD 1,200 UD 250 UD 250 uo 250 UD
W-17s Source ShaUow 29.5-44.5 12118/1998 10,000 UD 10,000 U 10,000 UD 10,000 uo 20,000 UJ 50,000 UJ 10,000 UD 10,000 UD 10,000 uo
W-17sd Source Shallow 29.5-44.5 12/911999 5,000 UD 5,000 UD 5,000 uo 5,000 UD 10,000 UD 25,000 UD 5,000 UD 5,000 uo 5,000 UD
W-17s Source Sh~low 29.5-44.5 61612000 10,000 uo 10,000 UD 10,000 UD 10,000 UD 20,000 UDJ 50,000 UD 10,000 UD 10,000 UD 10,000 UD
W-17s Source Shallow 29.5-44.5 11128/2000 1,000 UD 1,000 UD 1,000 UD 1,000 UD 2,000 USO 5,000 UD 1,000 UD 1,000 UD 1,000 uo
W-17s Source Shallow 29.5-44.5 4124/2001 2,000 UD 2,000 UD 2,000 UD 2,000 UD 4,000 UD 10,000 UD 2,000 UD 2,000 UD 2,000 UD
W-18s Background Shallow 22.5-37.5 1211111995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 0.10 J 1.00 U 1.00 U
W-18s Background Shallow 22.5-37.5 4130/1998 1.0 U 1.0 U 1.0 U 1.0 U 3.4 5.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 12116/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 61811999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-18s Background ShaDow 22.5-37.5 121611999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 618/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-18s Background ShaOow 22.5-37.5 1112812000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-18s Background Shallow 22.5-37.5 4123/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U .1.0 U 1.0 U 1.0 U
W-19s North Plume Shallow 17-27 12114/1995 2.00 U 2.00 U 2.00 U 2.00 U 2.00 U 10.00 U 2.00 U 2.00 U 2.00 U
W-19s North Plume Shallow 17-27 51511998 2.5 UD 2.5 UD 2.5 UD 2.5 UD 5.0 UD 12 UD 2.5 UD 2.5 UD 2.5 UD
W-19s North Plume Shallow 17-27 1211711998 1.0 U 0.3 J 0.05 J 2.0 U 5.0 U 1.0 U 1.0 U 1.0 UD
W-19s North Plume Shallow 17-27 6/1011999 20 UD 20 UD 20 UD 20 UD 40 UD 100 UD 20 UD 20 UD 20 UD
W-19s North Plume Shallow 17-27 121711999 20 UD 20 UD 20 UD 20 UD 40 UD 100 UD 20 UD 20 UD 20 uo
W-19s North Plume Shallow 17-27 61612000 5.0 uo 5.0 uo 5.0 uo 1.6 JD 10.0 UDJ 25 UD 5.0 UD 5.0 UD 5.0 UD
W-19s North Plume Shallow 17-27. 11128/2000 50 UD 50 UD 50 UD 50 UD 19 JD 250 UD 50 UD 50 UD 50 UD
W-19s Dup North Plume Shallow 17-27 11/2812000 1.0 U 0.79 J 0.32 J 3.9 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-19s North Plume Shallow 17-27 412412001 20 UD 20 UD 20 UD 20 UD 40 UD 100 UD 20 UD 20 UD 20 UD
W-20s North Plume Shallow 4-14 1211211995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-20s Oup North Plume ShaUow 4-14 4129/1998 1.0 U 1.0 U 1.0 U 0.26 J 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-20s North Plume Shallow 4-14 412911998 1.0 U 1.0 U 1.0 U 0.28 J 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-20s North Plume Shalk>w 4-14 12/20/1998 1.0 U 1.0 U 1.0 U 0.4 J 2.0 UJ 5.0 U 1.0 U 1 UD 1.0 U
W-20s North Plume Shallow 4-14 618/1999 2.0 UD 2.0 UD 2.0 UD 0.58 JD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD
W-20s Dup North Plume Shallow 4-14 1217/1999 2.0 UD 2.0 UD 2.0 UD 1.2 JD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 uo
W-20s North Plume Shallow 4-14 1217/1999 2.0 UD 2.0 UD 2.0 UD 1.3 JD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD
W-20s Oup North Plume Shallow 4-14 618/2000 1.0 U 1.0 U 1.0 U 0.53 J 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-20s North Plume ShaOow 4-14 61812000 5.0 UD 5.0 UD 5.0 uo 5.0 uo 10.0 UDJ 25 UD 5.0 UD 5.0 UD 5.0 UD
W-20s North Plume Shallow 4-14 11/2912000 5.0 UD 5.0 UD 5.0 UD 5.0 UD 10 UBD 25 UD 5.0 UD 5.0 UD 5.0 UD
W-20s North Plume Shallow 4-14 4124/2001 2.0 UD 2.0 UD 2.0 UD 1.8 JD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD
Page 16 of 51
P:\Proj\ 18895\18895.0 16\apr-01-tA0 1
----11111!! --------------Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well trans-1,2-
Screened Sampling 1,2-Dichloro-1, 1-Dichloro-Dichiaro-1,2-Dichforo-Methylene 4-Methy\-2-1, 1, 1-Trichlor<r 1, 1,2-Trich!oro-
Monitoring Well Zone Well Type Depth Date ethane ethene ethene propane ch!Ofide pentanone Toluene ethane ethane
(ft) (µ9/L) (µ9/L) (µ9/L) (µ9/L) (µ9/L) (µ9/L) (µg/L) (µ9/L) (µ9/L)
FCX OUJ Groundwater Perfonnance Standards eer the RA Work Plan: 7 0.56 5
W-20i North Plume Intermediate 84-94 3/25/1996 20.00 U 20.00 U 20.00 U 20.00 U 40.00 U 100.00 U 20.00 U 20.00 U 20.00 U
W-20i North Plume Intermediate 84-94 4/29/1998 2.0 UJ 0.4 J 2.0 UJ 8.6 J 4 UJ 1.4 J 2.0 UJ 2.0 UJ 2.0 UJ
W-20i North Plume Intermediate 84-94 12/15/1998 50 UD 50 UD 50 UD 48 DJ 100 U 250 UD 50 U 50 UD 50 UD
W-20i North Plume Intermediate 84-94 1/26/1999 1.0 U 0.6 J 0.2 J 16 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-20i North Plume Intermediate 84-94 1/27/1999 20 U 20 UD 20 UD 15 JD 40 U 100 UD 20 UD 20 U 20 U
W-20i North Plume Intermediate 84-94 6/8/1999 50 UD 50 UD 50 UD 13 JD 100 UD 250 UD 50 UD 50 UD 50 UD
W-20i North Plume Intermediate 84-94 12/7/1999 50 UD 50 UD 50 UD 11 JD 100 UD 250 UD 50 UD 50 UD 50 UD
W-20i North Plume Intermediate 84-94 6/812000 1.0 U 0.34 J 1.0 U 12 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-20i Dup (field) North Plume Intermediate 84-94 11/30/2000
W-20i North Plume Intermediate 84-94 11/30/2000 1.0 U 0.5 J 0.18 J 15 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-20I North Plume Intermediate 84-94 4/24/2001 50 uo 50 UD 50 UD 16 JD 100 UD 250 uo 50 uo 50 UD 50 uo
W-20dc North Plume Deep 152-166 9/23/1998 1.0 U 1.0 U 1.0 U 2.8 0.58 J 5.0 U 0.88 J 1.0 U 12.0 U
W-20d North Plume Deep 152-166 12/17/1998 1.0 U 0.03 J 3 2.0 U 0.4 J 0.7 J 1.0 U 1.0 U
W-20d North Plume Deep 152-166 6/9/1999 1.0 U 1.0 U 1.0 U 0.61 J 2.0 U 5.0 U 0.10 J 1.0 U 1.0 U
W-20d North Plume Deep 152-166 12/9/1999 1.0 U 1.0 U 1.0 U 0.95 J 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-20d North Plume Deep 152-166 6/9/2000 1.0 U 1.0 U 1.0 U 0.63 J 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-20d North Plume Deep 152-166 11/29/2000 1.0 U 1.0 U 1.0 U 0.94 J 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-20d North Plume Deep 152-166 4/25/2001 1.0 U 1.0 U 1.0 U 1.0 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-21s North Plume ShaHow 10-20 12/12/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 0.20 J 1.00 U 1.00 U
W-21s North Plume Shallow 10-20 5/17/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-22s South Plume Shallow 20-35 12/14/1995 1.00 U 1.00 J 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-22s South Plume Shallow 20-35 5/1/1998 1.0 U 1.0 U 1.0 U 1.0 U 3.7 5.0 U 1.0 U 0.88 J 1.0 U
W-21,, South Plume Shallow 20-35 12/20/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 UJ 1.0 U 0.6 J 1.0 U
W-22sd South Plume Shallow 20-35 12/8/1999 1.0 U 1.3 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 0.78 J 1.0 U
W-22s South Plume Shallow 20-35 6/7/2000 1.0 U 0.71 J 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-22i South Plume Intermediate 57-67 3/25/1996 10.00 U 10.00 U 10.00 U 10.00 U 20.00 U 50.00 U 10.00 U 12.00 10.00 U
W-22i South Ph.une Intermediate 57-67 5/1/1998 1.0 U 20 0.46 J 1.0 U 2.0 U 5.0 U 1.0 U 11 0.31 J
W-22i South Plume Intermediate 57-67 12/20/1998 10 UD 20 D 0.4 JD 10 UD 20 UJ 50 UD 10 UD 12 D 10 UD
W-22i South Plume Intermediate 57-67 6/9/1999 10 UD 11 D 10 UD 10 UD 20 UD 50 UD 10 UD 10 UD 10 UD
W-22iDup South Plume Intermediate 57-67 12/8/1999 10 UD 7.3 JD 10 UD 10 UD 20 UD 50 UD 10 UD 5.0 JD 10 UD
W-22i South Plume Intermediate 57-67 12/8/1999 10 UD 10 UD 10 UD 10 UD 20 UD 50 UD 10 UD 5.4 JD 10 UD
W-23s Dup South Plume Shallow 25-40 1/29/1996 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-23s South Plume Shallow 25-40 1/29/1996 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-23s South Plume Shallow 25-40 5/23/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
P:\Proj\ l889S\1889S.016\a.pr-01-IA01 Page 17 of 51
-- -
lill ---- ---------_, -Table A-1. Data from Monitoring Wells Used for E.valuation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well bans-1,2-
Screened SampDng 1,2-0ichloro-1, 1-Dichloro-Dichiaro-1,2-Dichloro-Methylene 4-Methyl-2· 1,1,1-Trichloro-1,1,2-Trichloro-
Monitoring Well Zone Well Type Depth Date ethane ethene ethene propane chloride pentanone Toluene ethane ethane
(ft) (µ9/L) (µ9/L) (µ9/L) (µ9/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 7 0.56 5
W-24s South Plume Shallow 5-20 12/13/1995 1.00 U 0.20 J 1.00 U 1.00 U 1.00 U 5.00 U 0.10 J 1.00 U 1.00 U
W-24s South Plume Shallow 5-20 511/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-24s Dup South Plume ShaDow 5-20 · 1/27/1999 1.0 U 0.08 J 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-24s South Plume ShaDow 5-20 1/27/1999 1.0 U 0.1 J 1.0 U 1.0 U 2.0 U 5.0 U 1.0 J 1.0 U 1.0 U
W-24s South Plume Shallow 5-20 6/9/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-24s South Plume Shallow 5-20 12/8/1999 1.0 U 0.21 J 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-24s South Plume Shallow 5-20 617/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-24s South Plume Shallow 5-20 11/29/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-24s South Plume Shallow 5-20 412512001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UB 5.0 U 1.0 U 1.0 U 1.0 U
W-25s Dup Side Gradient Shallow 10-25 12/12/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-25s Side Gradient Shallow 10-25 12/12/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W-25s Side Gradient Shallow 10-25 5117/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U ·
W-26i0up Side Gradient Intermediate 103-118 12/14/1995 1.00 u · 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W•26i Side Gradient Intermediate 103-118 12/1411995 1.00 U 1.00 U 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 1.00 U 1.00 U
W•26i Side Gradient Intermediate 103-118 12/16/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 0.5 J 0.6 J 1.0 U 1.0 U
W-261 Side Gradient Intermediate 103-118 5117/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W•261 Oup Side Gradient Intermediate 103-118 5117/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W•27s South Plume Shallow 25-40 12/12/1995 1.00 U 1.00 U 1.00 U 1.00 U 2.00 U 5.00 U 0.10 J 1.00 U 1.00 U
W-27s south Plume Shallow 25-40 5122/2001 1.0 U. 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U · 1.0 U 1.0 U 1.0 U
W-28i Dup North Plume Intermediate 73-88 12/19/1995 10.00 U 6.00 J 10.00 U 10.00 U 20.00 U 50.00 U 10.00 U 10.00 U 10.00 U
W•28i North Plume Intermediate 73-88 12/19/1995 10.00 U 6.00 J 10.00 U 10.00 U 20.00 U 50.00 U 10.00 U 10.00 U 10.00 U
W•28i North Plume Intermediate 73-88 5/5/1998 10 UD 2.9 DJ 10 UD 10 UD 20 UD 50 UD 10 UD 10 UD 10 UD
W-281 North Plume Intermediate 73-88 12/18/1998 10 UD 14 D 10 UD 0.8 JD 20 U 50 UD 10 U 10 UD 10 UD
w.2ai North Plume Intermediate 73-88 6/811999 50 UD. 50 UD 50 UD 50 UD 100 UD 250 UD 50 UD 50 UD 50 UD
W-281 North Plume Intermediate 73-88 12/7/1999 50 UD 50 UD 50 UD 50 UD 100 UD 250 UD 50 UD 50 UD 50 UD
W-281 North Plume Intermediate 73-88 6/6/2000 5.0 UD 7.0 D 5.0 UD 5.0 UD 10.0 UDJ 25 UD 5.0 UD 5.0 UD 5.0 UD
W-28i North Plume Intermediate 73-88 11/29/2000 50 UD 50 UD 50 UD 50 UD 100 UBD 250 UD 50 UD 50 UD 50 UD
W-28i North Plume Intermediate 73-88 4/25/2001 20 UD 10 JD 20 UD 20 UD 40 UD 100 UD 20 UD 20 UD 20 UD
W-28d North Plume Oeep 234-249 5117/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U . 0.27 J 1.0 U 1.0 U
P:\Proj\1 8895\1 8895.016\apr-Oi.t.A.01 Page 18 of 51
----·-, .. .. --,_ liii llii lliii , .. -• , .. --Table A-1, Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile Organic Comeounds
Well trans-1,2-
Screened Sampling 1,2-Dichloro-1, 1-Dichloro-Dichiaro-1,2-Dichloro-Methylene 4-Melhye2-1,1,1-Trichloro-1,1,2-Trichloro.
Monitoring wen Zone WeDType Deplh Date ethane ethene ethene propane chloride pentanone Toluene ethane ethane
(ft) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan: 7 0.56 5
W-29i Dup South Plume Intermediate 88-98 12/1311995 1.00 U 5.00 1.00 U 1.00 U 1.00 U 5.00 U 1.00 U 0.80 J 1.00 U
W-29i South Plume lntennedlate 88-98 12/13/1995 1.00 U 3.00 1.00 U 1.00 U 2.00 U 5.00 U 1.00 U 0.50 J 1.00 U
W-29i South Plume Intermediate 88-98 5/1/1998 2.5 UD 4.4 D 2.5 UD 2.5 UD 5.0 UD 12 UD 2.5 UD 2.5 UD 2.5 UD
W-29iDup South Plume Intermediate 88-98 12120/1998 2.0 UD 4D 2.0 UD 2.0 UD 4.0 UJ 10 UD 2.0 UD 2.0 UD 2.0 UD
W-29i South Plume Intermediate 88-98 12/20/1998 2.0 UD 3D 2.0 UD 2.0 UD 4.0 UJ 10 UD 2.0 UD 2.0 UD 2.0 UD
W-29i Oup South Plume Intermediate 88-98 6/9/1999 2.0 UD 4.4 D 2.0 UD 2.0 UD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD
W-29i South Plume Intermediate 88-98 6/9/1999 2.0 UD 4.4 D 2.0 UD 2.0 UD 4.0 UD 10 UD 2.0 UD 2.0 UD 2.0 UD
W-29i Dup Sooth Plume Intermediate 88-98 12/9/1999 5.0 UD 4.3 JD 5.0 UD 5.0 UD 10 UD 25 UD 5.0 UD 5.0 UD 5.0 UD
W-29i South Plume Intermediate 88-98 12/9/1999 5.0 UD 3.8 JD 5.0 UD 5.0 UD 10 UD 25 UD 5.0 UD 5.0 UD 5.0 UD
W-29i0up South Plume Intermediate 88-98 617/2000 1.0 UD 5.9 1.0 UD 1.0 UD 2.0 UJ 5.0 U 1.0 U 0.73 J 1.0 U
W-29i South Plume Intermediate 88-98 6/7/2000 5.0 UD 4.0 JD 5.0 UD 5.0 UD 10.0 UDJ 25 UD 5.0 UD 5.0 UD 5.0 UD
W-29i South Plume Intermediate 88-98 11/29/2000 5.0 UD 5.5 D 5.0 UD 5.0 UD 10 UD 25 UD 5.0 UD 5.0 UD 5.0 UD
W-291 Dup (W-GB) South Plume lntennedlate 88-98 4/24/2001 1.0 U 5,0 1.0 U 0,82 J 2,0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-291 ' South Plume lntennedlate 88-98 4/24/2001 2.0 UD 4.6 D 2.0 UD 0.75 JD 4.0 UD 10 UD 2,0 UD 2.0 UD 2.0 UD
W-30i North Plume Intermediate 37.5-47.5 12/19/1995 50.00 U 50.00 U 50.00 U 50.00 U 100.00 U 250.00 U 50.00 U 50.00 U 50.00 U
W-30i North Plume Intermediate 37.5-47.5 4/30/1998 2.5 UD 1.1 DJ 0.38 DJ 5.3 D 12 D 12 UD 0.46 DJ 2.5 UD 2.5 UD
W-30i North Plume Intermediate 37.5-47.5 12/19/1998 20 UD 20 U 20 UD 5 DJ 40 U 100 UD 20 U 20 UD 20 UD
W-30i North Plume Intermediate 37.5-47.5 1/26/1999 1.0 U 3 0.1 J 5 2.0 U 5.0 U 0.1 J 1.0 U 0.2 J
W-30i North Plume Intermediate 37.5-47.5 1/27/1999 50 UD 50 UD 50 UD 50 UD 100 U 250 UD 50 UD 50 UD 50 UD
W-30i North Plume Intermediate 37.5-47.5 6/9/1999 50 UD 50 UD 50 UD 50 UD 100 UD 250 UD 50 UD 50 UD 50 UD
W-30i North Plume Intermediate 37.5-47.5 12/8/1999 100 UD 100 UD 100 UD 100 UD 200 UD 500 UD 100 UD 100 UD 100 UD
W-30i North Plume Intermediate 37.5-47.5 6/7/2000 5.0 UD 2.1 JD 5.0 UD 4.4 JD 10.0 UDJ 25 UD 5.0 UD 5.0 UD 5.0 UD
W-30i North Plume lntermerliate 37.5-47.5 11/29/2000 100 UD 100 UD 100 UD 100 UD 200 UBD 500 UD 100 UD 100 UD 100 UD
W-301 North Plume lntennedlate 37.5-47.5 4/24/2001 5,0 UD 3.7 JD 5.0 UD 7.9 D 10 UD 25 UD 5,0 UD 5,0 UD 5,0 UD
W-31s North Plume Shallow 5-15 11/1/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 0.06 J 1.0 U 1.0 U
W-31s Dup North Plume Shallow 5-15 11/19/1998 · 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s North Plume Sh~low 5-15 11/19/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 0.068 J 1.0 U 1.0 U
W-31s Oup North Plume ShaUow 5-15 12/16/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s North Plume Shaeow 5-15 12/16/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s d North Plume ShaUow 5-15 6/7/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s d North Plume ShaDow 5-15 6/10/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s North Plume Shanow 5-15 12/6/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s Dup North Plume Shatlow 5-15 12/16/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s North Plume ShaDow 5-15 615/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-31s North Plume Shallow 5-15 11/27/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.U U 5.0 U 1.0 U 1.0 U 1.0 U
W-31s North Plume Shallow 5-15 4/23/2001 1,0 U 1.0 U 1.0 U 1,0 U 2,0 UB 5.0 U 1.0 U 1.0 U 1,0 U
P:\Pnij11 BB95\18B95.016\ap,--O 1-tA01 Page 19 of 51
.. -/ - --,, •. !-· -· -,_ --- - --·----Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Volatile O~anlc Comeounds
Wcll trans-1,2·
Screened Sampling 1,2-Dichloro-1, 1-Dichloro-Dichloro-1,2-Dichtoro-Methylene 4-Methyi-2-1,1,1-Trichloro-1,1,2-Trichloro,
Monitoring Well Zone Well Type Depth Date ethane ethene elhene propane chloride pentanone Toluene ethane ethane
(ft) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L)
FCX OU3 Groundwater Performance Standards ~r the RA Work Plan: 7 0.56 5
W-31i North Plume Intermediate 34-44 11/1/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 5.0 U 1.0 U 1.0 U 1.0 U
W-311 North Plume Intermediate 34-44 11/19/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 J 5.0 U 1.0 U 1.0 U 1.0 U
W-31i North Plume Intermediate 3441 12116/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-311 North Plume Intermediate 34-44 617/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-311 North Plume Intermediate 34-44 1216/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31i North Plume Intermediate 34-44 6/5/2000 1.0 u 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-311 Dup (field) North Plume Intermediate 34-44 11/27/2000
W-31i North Plume. Intermediate 34-44 11/27/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-31I North Plume Intermediate 34-44 4/23/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UB 5.0 U 1.0 U 1.0 U 1.0 U
W-3~ South Plume Intermediate 112-132 11/111998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 0.24 J 1.0 U 1.0 U
W-321 South Plume Intermediate 112-132 11/19/1998 1.0 U 1.0 u 1.0 U 1.0 U 2.0 U 5.0 U 0.24 J 1.0 U 1.0 U
W-321 South Plume Intermediate 112-132 12118/1998 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 UJ 1.0 U 1.0 U 1.0 U
W-32i South Plume Intermediate 112-132 6/9/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-32i South Plume Intermediate 112-132 1217/1999 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-32i South Plume Intermediate 112-132 6/812000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 UJ 5.0 U 1.0 U 1.0 U 1.0 U
W-321 Dup (field) South Plume Intermediate 112-132 11/26/2000
W-3~ South Plume Intermediate 112-132 11/28/2000 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.0 U 1.0 U
W-321 South Plume lntennediate 112-132 4/26/2001 1.0 U 1.0 U 1.0 U 1.0 U 2.0 U 5.0 U 1.0 U 1.o·u 1.0 U
P:\PrDj\ 18895118895.0161api--01-IAD1 Page 20 of 51
., a&> !--,. -·-· --·'-.. -... ,. ~ -11111 --Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well lnfonnation Electron AcceE:tors
WeU Field
Screened Sampling Manganese Manganese
Monitoring Well Zone Well Type Depth Date Aluminumd Field DO Nitrate/Nitrite (total) (11) Iron (total) Field Iron (II) Sulfate Field Sulfide H2S
(ft) (mg/I.) (ppm) (mg/I.) (mg/I.) (ppm) (mgA.) (ppm) (mg/I.) (mg/I.) (mg/I.)
FCX OU3 Groundwater Perfonnance standards eer the RA Work Plan: 0.05 0.05 0.3
Ml'/·1 South Plume Shallow 41.56-51.56 4/29/1994
MN-1Dup South Plume Shallow 41.56-51.56 10/10/1994 0.367 N 0.230 0.247 N
MW-1 South Plume Shallow 41.56-51.56 10/10/1994 0.375 N 0.256 0.281 N
MW-1 South Plume Shallow 41.56-51.56 5/16/2001 5.0 3.1 0 0.9 1.2 0
MW-2 Souih Plume Shallow 42.52-52.52 4/29/1994
MW-2 South Plume Shallow 42.52-52.52 10/10/1994
MW-2 South Plume Shallow 42.52-52.52 5/23/2001 2.0 5.4 0 1.8 1.0 U 0.1
MW-3 South Plume Shallow 43.01-53.01 4/2911994
MW-3 South Plume Shallow 43.01-53.01 9/2811994
MW-3 South Plume Shallow 43.01-53.01 5/1612001 1.0 5.8 0 0.6 1.2 0
MW-4Dup Side Gradient Shallow 51.43-61.43 4/2811994
MW-4 Side Gradient Shallow 51.43-61.43 4/2811994
MW-4 Side Gradient Shallow 51.43-61.43 1015/1994
MW-4 Side Gradient Shallow 51.43-61.43 5/17/2001 2.0 13 0.1 0.9 1.0 U 0.1
MW-5s South Plume Shallow 48.03-58.03 412811994
MN-5s South Plume Shallow 48.03-58.03 1015/1994
MW-5s South Plume Shallow 48.03-58.03 12/1111995
MW-5s South Plume Shallow 48.03-58.03 5/16/2001 4.0 1.9 0.1 1.8 1.2 0
MW-5d South Plume Intermediate 18.76-30.54 4/2911994
MW-5d South Plume Intermediate 18.76-30.54 101611994
MW-5d South Plume Intermediate 18.76-30.54 12/13/1995
MW-Sd South Plume Intermediate 18.76-30.54 5/2312001 0.1 0.25 U 0 0 16 02
MW-6s South Plume Shallow 45.36-55.36 4128/1994
MW-6s South Plume Shallow 45.36-55.36 10/6/1994
MW-6s South Plume Shallow 45.36-55.36 5/22/2001 4.0 7.8 0 2.9 4.9 0
MW-6d Dup South Plume Intermediate 26.8-16.3 4/2911994
MW-6d South Plume Intermediate 26.8-16.3 4129/1994
MW-6d South Plume Intermediate 26.8-16.3 10/4/1994
MW-6d South Plume Intermediate 26.8-16.3 5/22/2001 0.8 0.25 U 0.2 2.0 12 0
MW-6d Cup South Plume Intermediate 26.8-16.3 5/22/2001 0.8 0.25 U 0.2 2.0 12 0
MW-7 South Plume Shallow 37.0-47.0 412811994
MW-7 South Plume Shallow 37.0-47.0 9/2911994
MW-7 South Plume Shallow 37.0-47.0 5/22/2001 4.0 22 0 0.2 1.8 0
P:\Proj\ 18895118895 016\apr-0 1-tA01 Page 21 of 51
--, ... .. , ---, ,_ ~-(-\ /-/ -, __ . , -·---,_ .. , ... Table A-1, Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Electron Acceetors
WeU Field
Screened Sampang Manganese Manganese
Monitoring WeD \.'?:one WeUType Depth Date Alumlnumd Field DO Nitrate/Nitrite (total) (II) Iron (totaO Field Iron (10 Sulfate Field Sulfide H2S
(ft) (mg/l) (ppm) (mg/l) (mg/L) (ppm) (mg/l) (ppm) (mg/l) (mg/l) (mg/l)
FCX OU3 Groundwater Pertonnance Standards eer the RA Work Plan: 0.05 0.05 0,3
MW-8 Side Gradient Shallow 45,88-55.88 4/2811994
MW-8 · Side Gradient Shallow 45,88-55,88 9/29/1994
MW-8 Side Gradient Shallow 45,88-55,88 5/1612001 5,0 0,25 U 0 0 1,2 0
MW-9 Side Gradient Shallow 53.8-63,5 4129/1994
MW-9Dup Side Gradient Shallow 53,8-63,5 101711994 2.28 N 1.01 2.84 N
MW-9 Side Gradient ShaHow 53,8-63,5 101711994 1.98 N 0.973 2.54 N
MW-9 Side Gradient Shallow 53,5-63,5 5121/2001 1,0 3,0 0,1 2,2 3,4 0
MW-10 Side Gradient Shallow 50.58-60.56 4/2811994
MW-10 Side Gradient Shallow 50.58-60.56 9125/1994
MW-10 Side Gradient Shallow 50,56-80,56 5121/2001 3,0 2,7 0,1 1,1 1,8 0,1
MW-11 South Plume lntesmediate 4,0-8,0 4129/1994
MW-11 South Plume Intermediate 4,0-8.0 10/611994
MW-11 South Plume Intermediate 4,0-8.0 12/13/1995
MW-11 South Plume lntennediate 4,0-8.0 5123/2001 0,1 0,25 U 0 0 18 0
W-1s Side Gradient ShaUow 34-48 4/2711994
W-1s Dup Side Gradient ShaUow 34-48 1016/1994
W-1s Side Gradient Shallow 34-48 1016/1994
W-1s Side Gradient Shallow 38-48 12119/1998 4.5 0.58 0,749 u 1.810 0.5 u
W-1s Side Gradient Shallow 34-48 5/16/2001 4,0 0,47 0,1 0,7 1.2 0,1
W-1i Side Gradient Intermediate 65.5-72.5 10/611994
W-1i Side Gradient lntennediate 65.5-72,5 5/16/2001 2,0 0,38 0 0,2 1,8 0
W-1,, Side Gradient Shallow 33.5-43.5 4/2711994
W-1,, Side Gradient Shallow 33,5-43.5 10/5/1994
W-2s Side Gradient Shallow 33,8-43,5 5/1512001 1,0 1,5 0 0 1,0 U 0
W-~ Side Gradient Intermediate 83-93 10/511994
W-2i Side Gradient lntennediate 83-93 5115/2001 2.0 4,2 0 0 1.8 0
W-3s South Plume Shallow 34.0-44.0 4127/1994
W-3s South Plume Shallow 34.0-44.0 10/10/1994
W-3s South Plume Shallow 34,0-44.0 5115/2001 3,0 0,31 0 1,4 1.0 _u 0,3
W-4s Dup South Plume Shallow 34-44 4127/1994
W--1s South Plume Shallow 34-44 4127/1994
W--1s South Plume ShaDow ., 34-44 9/2811994
P:\Pr'Oj"\18895\18895.016\apr-01-lA01 Page 22 of 51
-., .. .. ·-IIIIJj ,. ;-i ... i __ , -,_ ., ,,_. -... ,111111 , .. '1111
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OUJ
Well lnfonnatlon Electron Acceetors
Well Field
Screened Sampflng Manganese Manganese
Monitoring Well Zone Well Type Depth Date Aluminumc1 Field DO Nitrate/Nitrtte (lotaij (II) Iron (total) Fi~d Iron (II) Sulfate Field Sulfide H2S
(ft) (mg/I.) (ppm) (mg/I.) (mg/L) (ppm) (mg/I.) (ppm) (mg/I.) (mg/I.) (mg/I.)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-Ss South Plume Shallow 32-42 4127/1994
W-5s Oup South Plume Shallow 32-42 1011111994 10.1 N 1.30 16.3 N
W-Ss South Plume ShaUow 32-42 1011111994 17.1 N 1.62 26.0 N
W-5s South Plume Shallow 32-42 4130/1998 0.2 1.2 1.12 u 2.93 u u u
W-5s South Plume ShaUow 32-42 1211711998 1.9 1.430 11.100 u u
W-5s b South Plume Shallow 32-42 61911999 34.9 1.0 2.3 2.43 0.4 36.1 0.3 1.8 0
W-Ss South Plume Shallow 32-42 1217/1999 7.350 2.6 1.710 0,3 7.710 1.6 2.3 0
W-5s Dup South Plume Shallow 32-42 1211711999 2.0 1.6 13.0 u
W-5s South Plume Shallow 32-42 616/2000 0.894 J 3.2 1.56 J 0,3 0.879 0.5 1.6 0
W-5s South Plume ShaUow 32-42 11128/2000 17.6 4.2 2.13 20.9 1.0 U
W-5s South Plume Shallow 32-42 4/2312001
W-Si South Plume Intermediate 56-66 10/11/1994
W-Si South Plume Intermediate 56-66 515/1998 2.0 u 0.0467 u 1.02 1.1 22 u
W-Si South Plume Intermediate 56-66 12119/1998 u 0.011 B u 0.0706 8 0.2 u
W-Si South Plume Intermediate 56-66 6/811999 0.746 2.0 u 0.0406 0 0.595 0.4 19 0
W-5i South Plume Intermediate 56-66 121811999 10,400 1.5 0.26 0.101 0 5.990 2.5 18 0
W-Si Dup South Plume Intermediate 56-66 61912000 2.01 0.25 U 0.059 0 1.38 1 17 0
W-Si South Plume Intermediate 56-66 619/2000 1.95 1 0.32 0.0559 0 1.36 18 0
W-Si South Plume Intermediate 56-66 11/30/2000 0.758 0.8 0.25 U 0.0505 0.741 18
W-51 South Plume Intermediate 66-66 4/2312001 0.635 0.8 025 U 0.0328 0 0.456 0 15 0
W-6s Dup Side Gradient ShaUow 22-37 10/1211994 1.79 N 0.133 N 2.55
W-6s Side Gradient Shallow 22-37 1011211994 6.93 N 0.395 N 10.6
W-6s Dup Side Gradient Shallow 22-37 4130/1998 0.184 5.44
W-6s Side Gradient Shallow 22-37 4130/1998 -0.173 5.16
W-6s Side Gradient Shallow 22-37 5/15/2001 1.0 1.7 0 0.5 8.6 0.1
W-7s North Plume Shallow 16-30 10/1211994 1.16 N 2.52 N 0.206
W-7s North Plume Shallow 16-30 5116/2001
W-6s Side Gradient Shallow 20-35 10/1111994
W-8s Side Gradient ShaUow 20-35 1110/1995
W-6s Side Gradient Shallow 20-35 1211211995
W-6s Side Gradient Shallow 20-35 5115/2001 2.0 0.49 0 1.0 1.0 U 0.1
W-8i Side Gradient Intermediate 83-93 10111/1994
W-8i Side Gradient Intermediate 83-93 1111/1995
w-ai Side Gradient Intermediate 83-93 12/14/1995
W-8i Side Gradient Intermediate 83-93 12116/1998 1.0 u 0.0331 u 4.380 0.2 63 u
W-61 Side Gradient Intermediate 83-93 5115/2001 0.8 0.25 U 0 1.0 27 1.0
P:\Proj\18f!95\18895 016\apr--01-IA01 Page 23 of 51
... , ~ (1!1!11' ., ,. 'lllllti -~i ., /
,111111 ~· ,_ -· ,lll!!!IJ '-11!11 -.... --·-Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation'
FCX-Statesville Superfund Site OU3
Well Information Electron Acceetors
WeU Field
Screened Sampling Manganese Manganese
Monitoring Well Zone wen Type Depth Date Aluminumd Field DO Nitrate/Nitrite (total) (II) Iron (total) Field Iron (II) Sulfate Field Sulfide H,S
(ft) (mg/I.) (ppm) (mg/I.) (mg/I.) (ppm) (mg/I.) (ppm) (mg/I.) (mg/I.) (mg/I.)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-9s Treatment Shallow 34-49 10/11/1994
W-9s Dup Treatment ShaUow 34-49 5/5/1998 1.3 0.0529 2.43 u
W-9s Treatment Shallow 34-49 5/5/1998 1.3 0.0365 1.08 u
W-9s Treatment ShaHow 34-49 12/17/1998 1.8 0.535 35.6 1 u
W-9s Treatment Shallow 34-49 5115/2001 2.0 2.6 0 2.4 1.0 U 0.1
W-9i Treatment Intermediate 81-91 10/11/1994
W-91 Treatment Intermediate 81-91 5/15/2001 4.0 2.3 0 0 1.8
W-10s South Plume ShaHow 20-35 10/7/1994
W-10s South Plume Shanow 20-35 1/10/1995
W-10s South Plume Shallow 20-35 12/14/1995
W-10s South Plume Shallow 20-35 5/16/2001 3.0 0.29 0 1.0 1.8 0
W-10i Side Gradient Intermediate 5!H;9 10/7/1994
W-10i Side Gradient Intermediate 5!H;9 1/11/1995
W-10i Side Gradient Intermediate 59-69 12/12/1995
W-10i Side Gradient Intermediate 5!H;9 4/30/1998 0.6 u 0.0022 B u 0.0361 B u 4.3 0.1
W-10i Side Gradient Intermediate 59-69 12/19/1998 2.0 0.31 0.0044 B u 0.111 0.2 u
W-10i Side Gradient Intermediate 59-69 6/8/1999 0.128 B 2.0 u 0.0019 B 0 0.0434 B 0.1 3.3 0.1
W-10i Side Gradient Intermediate 5!H;9 12/9/1999 0.271 u 0.0051 0 0.0974 0.3 5.3 0
W-10i Side Gradient Intermediate 59-69 6/6/2000 · · 0.368 J 1 0.31 0.0064 BJ 0 0.148 0.5 7.2 0.1
W-1 0i Dup (field) Side Gradient Intermediate 5!H;9 11/28/2000 1.0
W-10i Side Gradient Intermediate 59-69 · 11/28/2000 0.225 1.0 0.41 0.005 U 0 0.12 0.1 4.6 0.1
W-10I South Plume Intermediate 59-69 4/24/2001 0.67 1.0 0.31 0.005 U 0 0.23 0.2 7.0 0
W-11s Dup Side Gradient ShaHow 25-40 10/5/1994 1.34 0.263 E 0.688
W-11s Side Gradient Shallow 25-40 10/5/1994 0.894 0.248 E 0.113
W-11s Side Gradient Shallow 25-40 1/10/1995
W-11s Side Gradient Shallow 25-40 4/30/1998 0.0839 2.17
w-11, Side Gradient Shallow 25-40 5/17/2001 2.6 1.8
W-12s Background Shallow 18-33 10/4/1994
W-12s Dup Background Shallow 18-33 1/10/1995
W-12s Background Shallow 18-33 1/10/1995
W-12s Back.ground Shallow 18-33 4/30/1998 7.0 1.7 0.0357 u 2.37 0.25 5.8 u
W-12s Background Shallow 18-33 12/8/1999
P;\Pn,j\18895\ 18895.016\apr-Ol-tA01 Page 24 of 51
-· -l-' ~ ---.. I ~I 111111!1' -... , .. , 11111!1, ;--· :--· ·-· <-llli :-/ •.-. . -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
I\
Well Information Electron Acceetors
Well Field
Screened Sampling Manganese Manganese
· ~nitoring Well Zone WeUType Deplll Date Aluminumd Field DO Nitrate/NitJile (total) (II) lrnn (total) Field Iron (ll) Sulfate Field Sulfide H2S
(ft) (mg/I.) (ppm) (mg/I.) (mg/I.) (ppm) (mg/I.) (ppm) (mg/I.) (mg/I.) (mg/I.)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-1~Dup Background Intermediate 73-83 10/411994
W-1~ Background Intermediate 73-83 10/411994
W-1~ Background Intermediate 73-83 1/11/1995
W-12i Background Intermediate 73-83 4/30/1998 4.0 2.7 0.0056 B u 0.042 B u 38 u
W-12i Background Intermediate 73-83 12116/1998 3.5 3.1 0.0041 B u 0.02138 0.1 46
W-12i Background Intermediate 73-83 6/7/1999 0.0247 U 3.0 3.3 0.0054 B 0 0.017 U 0 u 0
W-1~ Background Intermediate 73-83 1219/1999 1.250 4 2.9 0.0293 0.1 1.890 0.3 32 0
W-1~ Background Intermediate 73-83 6/7/2000 0.503 J 3 0.25 U 0.029 J 0 0.88 0.25 11 0.7
W-1~ Background Intermediate 73-ll3 11/29/2000 0.322 2.5 4.8 0.0148 B 0.1 0.427 0.5 29 0.1
W-121 Background Intermediate 73-83 4/25/2001 0.148 B 3,0 4,8 0.0134 B 0 0.209 0 28 0.7
W-13i Cup Side Gradient Intermediate 70-l!0 10/3/1994 0.419 0.091 E 0.683
W-13i Side Gradient Intermediate 70-l!0 10/3/1994 0.446 0.0873 E 0.725
W•13i Side Gradient Intermediate 70-l!0 5/2212001 0,8 0.79 0 1.2 1.0 U 0.7
W-14s Dup Side Gradient Shallow 37-52 9/29/1994
W-14s Side Gradient Shallow 37-52 9/29/1994
W-14s Side Gradient Shallow 37-52 1/10/1995
W-14s Side Gradient Shallow 37-52 5/18J2001 0.6 0.25 U 5.0 57 0,4
W-141 Side Gradient Intermediate 105-115 9/30/1994
W-141 Side Gradient Intermediate 105-115 1/10/1995
W-14i Side Gradient lntennediate 105-115 5/23/2001 1.0 0.25 U 0 0.5 17 0.5
W-15s Side Gradient Shallow 30-45 9/29/1994
W-15s Side Gradient Shallow 30-45 1/10/1995
W•15s Side Gradient Shallow 30-45 5/18/2001 0.25 U 1.0 U
W-15i Dup Side Gradient Intermediate 71-81 9/30/1994
W-15i Side Gradient Intermediate 71-ll1 9/30/1994
W-15i Side Gradient Intermediate 71-ll1 1/10/1995
W-15i Side Gradient lntennedlate 71-ll1 6/26/2001 7,0 025 U 0 0.1 1.8 0
W-15i Dup Side Gradient lntennediate 71-81 6/26/2001 025 U 1.8
W-16s Treatment Shallow 35-50 10/11/1994 7.26 N 0.227 N 13.9
W-16s Treatment ShaDow 35-50 5/5/1998 0.0413 0.721
W-16s Treatment ShaDow 35-50 12/17/1998
W-16s Treatment Shallow 35-50 5/16/2001 12 0 0.5 1.0 U 0.3
W-16i Treatment Intermediate 77-87 10/11/1994 1.35N 0.0334 N 0.971
W-16i Treatment Intermediate 77-ll7 5/5/1998 0.001 U 0.157
W-16i Treatment lnterme<ftate 77-87 12/17/1998
W-161 Treatment lntennediate 11-a1 5/16/2001 3,0 0 0.3 16 0
P;\Proj\18895\18895.01 6\apr-01-IA01 Page 25 of 51
--,.. -· (-.. /-~ 111!!1!1I ·-'.ll!!!!lt ,:--------·-Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Electron Acceetors
WeU Field
Screened Sampling Manganese Manganese
Monitonng wen Zone Well Type Depth Date Aluminumd Field DO Nitrate/Nitrite 11o1an (II) Iron (total) Fiekl Iron (II) Sulfate Field Sulfide H,S
(ft) (mg/L) (ppm) (mg/L) (mg/L) (ppm) (mg/L) (ppm) (mg/L) (mg/L) (mg/L)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-17s Source Shrulow 29.5-44.5 10/11/1994 34.1 N 1.06 N 18.3
W-17s Source Shanow 29.5-44.5 1/1011995
W-17s Source ShaDow 29.5-44.5 515/1998 5.0 24 0.494 u 1.7 0.2 u u
W-17s Source Shallow 29.5-44.5 12/18/1998 4.0 27 0.699 0.3 5.1 0.8 u
W-17sd Source ShaUow 29.5-44.5 12/911999 5.450 0.707 1.000
W-17s Source Shallow 29.5-44.5 616/2000
W-17s Source Shrulow 29.5-44.5 11/2812000 46.6 0.037 1 0.969 . 9.481
W-17s Source Shallow 29.5-44.5 412412001 135 26 1.29 31.8 1
W-18s Background Shallow 22.5-37.5 12/1111995
W-18s Background Shallow 22.5-37.5 4130/1998 6.0 0.43 0.0332 u 1.12 0.2 u u
W-18s Background ShaDow 22.5-37.5 12/16/1998 u 0.285 14.300 u
W-18s Background ShaDow 22.5-37.5 61811999 37.4 3.0 0.47 0.530 0 28.4 0.2 1.8 0
W-18s Background ShaUow 22.5-37.5 12/611999 0.444 3 0.32 0.0211 0 0.231 0.4 1.3 0
W-18s Background Shallow 22.5-37.5 61612000 0.379 3 0.40 0.0191 J 0 0.229 0.2 1.6 0
W-18s Background Shanow 22.5-37.5 11/2812000 0.376 3.0 0.38 0.0207 0 0.286 0.1 1.0 U 0.1
W-18s Background Shallow 22.5-37.5 412312001 93.1 1 2.5 0.46 1.57 I 0 79.0 I 0 1.5 0
W-19s North Plume Shallow 17-27 12/14/1995
W-19s North Plume Shallow 17-27 515/1998 5.0 0.45 0.0364 u 1.67 0.2 47 u
W-19s North Plume Shallow 17-27 12/17/1998 0.0744 3.260 31
W-19s North Plume Shallow 17-27 6/1011999 0.795 4.0 0.83 0.0414 0.758 0.4 25 0
W-19s North Plume Shallow 17-27 12/711999 0.0376 2 1.2 0.0337 0 0.0156 0.1 17 0
W-19s North Plume Shallow 17-27 61612000 0.0855 BJ 0.94 0.0403 J 0 0.042 B 0.2 19 0
W-19s North Plume Shallow 17-27 11/2812000 10.3 3 1.7 0.23 0 12' 0.5 11 0.1
W-19s Dup North Plume Shallow 17-27 1112812000 24.5 0.546 -29.0 1
W-19s North Plume Shallow 17•27 412412001 0.0843 B 2.0 1.8 0.0308 0 0.0500 U 0.1 19 0
W-20s North Plume Shallow 4-14 12/12/1995
W-20s Dup North Plume Shallow 4-14 4/2911998 u 0.0076 B 0.357 u
W-20s North Plume Shallow 4-14 4/2911998 8.0 u 0.0004 B u 0.0123 U u u u
W-20s North Plume Shanow 4-14 12/20/1998 4.0 0.21 0.016 B u 0.844 0.2 u
W-20s North Plume Shallow 4-14 61811999 0.593 3.5 u 0.0107 B 0 0.730 0.2 u 0
W-20s Dup North Plume Sh81!ow 4-14 12/711999 0.0217 u 0.00044 0.0161 1.3
W-20s North Plume Shanow 4-14 12/711999 0.0282 5 0.37 0.001 0.1 0.0389 0.1 1.3 0
W-20s Dup North Plume Shallow 4-14 61812000 0.0701 BJ 3 0.25 U 0.00097 BJ 0 0.0406 B 0.2 1.1 0
W-20s North Plume ShaUow 4-14 61812000 0.0685 BJ 3 0.25 U 0.0011 BJ 0 0.0419 B 0.2 1.1 0
W-20s North Plume Shallow 4-14 11/29/2000 0.050 U 1.0 0.59 0.005 U 0 0.106 0.1 1.7 0.1
W-20s North Plume Shallow 4-14 4/2412001 0.0629 B 2.0 0.26 0.0050 U 0 0.0741 B 0.1 2.0 0.1
P .\Prt>J,18895\18895 0161apr-01-IA01
Page 26 of 51
-·-! -: < -~' '""°'' illl!II ,,-· ,' -= ... ... ... .. .• , -) -1 \ ... --.. Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Electron Acceetors
Wei! Field
Screened Sampling Manganese Manganese Monitoring Well Zone Well Type Depth Date Aluminumd Field DO Nitrate/Nitrite (totaQ (II) Iron (total) Field Iron (II) Sulfate Field Sulfide H2S
(ft) (m9/l) (ppm) (m9/l) (rng/l) (ppm) (m9/L) (ppm) (m9/l) (rng/l) (m9/l)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-20i North Plume Intermediate 84-94 3/25/1996
W-20i North Plume Intermediate 84-94 4/29/1998 2.0 0.32 0.0016 B u 0.0181 B u 6.8 u
W-20i North Plume Intermediate 84-94 12/15/1998 1.0 0.067 0.0013 B u 0.0745 B u 13 u
W-20i North Plume Intermediate 84-94 1/26/1999
W-20i North Plume Intermediate 84-94 1/27/1999
W-20i North Plume Intermediate 84-94 6/8/1999 0.0247 U 1.1 0.48 0.003 U 0 0.017 U 0.1 9.8 0
W-20i North Plume Intermediate 84-94 12/7/1999 0.0604 0.8 0.71 0.0011 0 0.0156 0.1 13 0
W-20i North Plume Intermediate 84-94 6/8/2000 0.0737 BJ 0.8 0.25 U 0.0043 BJ 0 0.103 0.2 13 0.1
W-201 Dup (field) North Plume Intermediate 84-94 11/30/2000 1.5 0 0 0
W-201 North Plume Intermediate 84-94 11/30/2000 0.05 U 1.5 0.74 0.005 U 0 0.05 U 0.1 15 0
W-20i North Plume Intermediate 84-94 4/24/2001 0.122 B 0.6 0.69 0.0050 U 0 0.050 U 0 14 0
W-20dc . North Plume Deep 152-166 9/2311998
W-20d North Plume Deep 152-166 12/17/1998 0.5 0.00024 B u 0.012 B u 22 u
W-20d North Plume Deep 152-166 6/9/1999 0.423 0.2 u 0.0028 B 0 0.147 0 11 0
W-20d North Plume Deep 152,166 12/9/1999 0.137 0.6 u 0.0016 0 0.0282 0 9.2 0
W-20d North Plume Deep 152-166 6/9/2000 0.22 0.05 0.25 U 0.0011 B 0 0.0134 U 0 9.1 0.5
W-20d North Plume Deep 152-166 11/29/2000 0.351 0.6 0.25 U 0.005 U 0 0.165 0 8.9 0.3
W•20d North Plume Deep 152-166 4/25/2001 0233 0.05 0.25 U 0.0050 U 0 0.166 0.3 12 0.1
W-21s North Plume Shallow 10-20 12/12/1995
W-21s North Plume Shallow 10-20 5/17/2001 0.25 U 1.0 U
W-22s South Plume Shallow 20-35 12/14/1995
W-22s South Plume Shallow 20-35 5/1/1998 7.0 9.5 0.523 0.3 1.82 1.2 1.3 u
W-22s South Plume Shallow 20-35 12/20/1998 4.5 9 0.645 0.2 5.340 2.2 u
W-22sd South Plume Shallow 20-35 12/8/1999 12.200 5.9 0.997 13.700 1.3
W-22s South Plume Shallow 20·35 6/7/2000 31 J 6.9 1.92 J 38.6 1.6
W-22l South Plume Intermediate 57-67 3/25/1996
W-22i South Plume Intermediate 57-67 5/1/1998 2.0 4.2 0.0464 u 1.26 0.95 u u
W-22i South Plume Intermediate 57-67 12/20/1998 1.0 4 0.0222 u 1.320 1.9 u
W-22i South Plume Intermediate 57-67 6/9/1999 0.0247 U 0.8 2.9 0.070 0 1.08 1.6 1.3 0
W-22i Dup South Plume Intermediate 57-67 12/8/1999 0.0165 3.3 0.0296 1.950 2.8
W-22i South Plume Intermediate 57-67 12/8/1999 0.0213 3.2 0.0316 0 2.130 3.1 2.8 0
W-23s Dup South Plume Shallow 25-40 1/29/1996
W-23s South Plume Shallow 25-40 1/29/1996
W-23s South Plume Shallow 25-40 5/23/2001 4.5 0.25 U 0 0.2 1.8 0
P:\Proj\18895118895.016\apr.01 "IA01 Page 27 of 51
---· ,-:_o ~ -,-<WIii\ <■-!l!t '~ ~ (-~ _, ~---:111!11 -~ zl!!!!!!i -Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Electron Acceetors
Well Field
Screened SampUng Manganese Manganese
Monitoring WeD Zone WeD Type Depth Date Aluminumd Field 00 Nitrate/Nitrite (totaQ (II) lrun (total) Field Iron (II) Sulfate Field Sulfide H,S
(fl) (m9/l) (ppm) (m9/l) (mgll) (ppm) (mg/l) (ppm) (mg/l) (mg/l) (mg/l)
FCX OUJ Groundwater Performance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-24s South Plume ShaDow 5-20 12/13/1995
W-24s South Plume ShaUow 5-20 5/1/1998 0.25 2.59 65.7 18
W-24s Dup South Plume Shallow 5-20 1/27/1999
W-24s South Plume ShaDow 5-20 1/27/1999 0.9 0.60 1.78 J 0.1 55.8 J 1.2 3.3 u
W-24s South Plume ShaUow 5-20 619/1999 81.3 2.0 u 1.47 0.3 80.8 2.0 u 0
W-24s South Plume Shallow 5-20 12/8/1999 18.000 1 0.55 0.573 0.1 16.500 1.5 u 0
W-24s South Plume Shanow 5-20 6/7/2000 42.2 J 3 0.25 U 1.26 J 0.3 34.5 3 100 I 0.1
W-24s South Plume Shallow 5-20 11/29/2000 20.9 2.0 0.75 0.729 0.1 19.7 2.0 2.2 0
W-24s South Plume Shallow 5-20 4/25/2001 57.8 1.0 1.4 1.24 0.3 30.6 1.7 3.5 0.1
W-25s Dup Side Gradient Shallow 10-25 12/12/1995
W-25s Side Gradient Shallow 10-25 12/12/1995
W-25s Side Gradient Shallow 10-25 5/17/2001 2.0 0.88 0 0.4 1.0 U 0
W-26i Oup Side Gradient Intermediate 103-118 12/14/1995
W-261 Side Gradient Intermediate 103-118 12/14/1995
W-26i Side Gradient Intermediate 103-118 12/16/1998 3.5 2 0.0174 u 0.0234 B u 11 u
W-261 Side Gradient Intermediate 103-118 5/17/2001 1.0 1.9 0 0 9.6 0.1
W-261 Cup Side Gradient lntennedlate 103-118 5/17/2001 1.0 2.0 0 0 9.6 0.1
W-27s South Plume Shallow 25-40 12/12/1995
W-27s South Plume Shallow 25-40 5/22/2001 1.0 0.99 0 1.2 1.3 0
W-28i Dup North Plume Intermediate 73-88 12/19/1995
W-28i North Plume Intermediate 73-88 12/19/1995
W-281 North Plume Intermediate 73-88 5/5/1998 2.5 0.14 0.0086 B u 0.573 u 42 u
W·28i North Plume Intermediate 73-88 12/18/1998 2.5 0.52 0.0071 B u 0.433 0.1 24 u
W-281 North Plume Intermediate 73-88 618/1999 0.813 0.5 u 0.0401 0 0.695 0 29 0
W-281 North Plume Intermediate 73-88 12/7/1999 0.556 0.8 0.44 0.0043 0 0.233 0 14 0
W-28i North Plume Intermediate 73-88 6/6/2000 0.766 J 0.3 0.32 0.0034 BJ 0 0.234 0 12 0
W-28i North Plume Intermediate 73-88 11/29/2000 0.456 0.8 0.25 U 0.0057 B 0 0.173 0.1 9.4 0
W-281 North Plume lntennedlate · 73-88 4/25/2001 0.341 0.2 0.29 0.0050 U 0 0.166 0.1 9.5 0.1
W-28d North Plume Deep 234-249 5/17/2001 0.1 0.25 U 0 0 1.0 U 5.0
P:\Prof\18895\18895.0 l61apr-01-1.AD1 Page 28 of 51
-1!111111 --... -.... --------I --= -@!!II ... -\
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Electron Acceetors
WeU Field
Screened Sampling Manganese Manganese
Monitoring Well Zone Well Type Depth Date Aluminumd Field DO Nitrate/Nitrite (total) (II) Iron (total) Field Iron (II) Sulfate Field Sulfide H,S
(ft) (mg/I.) (ppm) (mg/I.) (mg/I.) (ppm) (mg/I.) (ppm) (mg/I.) (mg/I.) (mg/I.)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-29i Dup South Plume Intermediate 88-98 12/13/1995
W-291 South Plume Intermediate 88-98 12/1311995
W-29i South Plume Intermediate 88-98 51111998 5.0 8.5 0.0274 u 0.0123 U u u u
W-291 Dup South Plume lntennediate 88-98 12/20/1998 4.5 7.4 0.0001 u 0.026 u u
W-291 South Plume Intermediate 88-98 12/20/1998 4.0 7.5 0.0256 u 5.7U u u
W-291 Dup South Plume Intermediate 88-98 6/911999 0.0247 U 4.0 5.7 0.0194 0 0.0170 U 0.1 u 0
W-29i South Plume Intermediate 88-98 6/911999 0.0247 U 4.0 5.8 0.0190 0 0.0170 U 0.1 u 0
W-29i Dup South Plume Intermediate 88-98 1219/1999 0.0367 6.8 0.0265 0.0224 1.8
W-29i South Plume Intermediate 88-98 1219/1999 0.0260 3 6.0 0.0257 0 0.0156 0.1 2.3 0.1
W-29i Dup South Plume Intermediate 88-98 617/2000 0.0625 J 3 7.1 0.0285 J 0 0.0266 B 0.2 1.1 0
W-29i South Plume Intermediate 88-98 617/2000 0.0654 J 3 6.8 0.0288 J 0 0.0138 B 0.2 1.6 0
W-291 South Plume Intermediate 88-98 11/29/2000 0.050 U 2.0 8.4 0.0232 0 0.005 U 0.2 1.7 0
W-291 Dup (W-GB) South Plume lntermedl.ate 88-98 4124/2001 0.050 U 1.0 5.7 0.0166 0 0.050 U 0.2 1.5 0
W-291 South Plume lntennedlate 88-98 412412001 0.050 U 1.0 5.6 0.0172 0 0.050 U 02 1.0 U 0
W-30i North Plume lntennediate 37.5-47.5 12/19/1995
W-30i North Plume Intermediate 37.5-47.5 4/3011998 1.8 u 0.023 u 1.59 0.7 35 5
W-30/ North Plume Intermediate 37.5-47.5 12/19/1998 0.3 u 0.0784 0.1 3.030 0.7 0.3
W-30/ North Plume Intermediate 37.5-47.5 1126/1999
W-30/ North Plume Intermediate 37.5-47.5 1127/1999
W-30i North Plume Intermediate 37.5-47.5 61911999 3.04 0.6 u 0.0735 0 1.63 0.4 35 0.1
W-30i North Plume Intermediate 37.5-47.5 12/811999 4.310 0.9 u 0.166 0 1.960 0.1 27 2
W-301 North Plume Intermediate 37.5-47.5 617/2000 1.45 J 0.05 0.25 U 0.139 J 0 1.04 0.1 32
W-30i North Plume Intermediate 37.5-47.5 11119/1000 0.478 0.8 0.5 U 0.0189 0 0.457 0.5 24 0.3
W-301 North Plume Intermediate 37.5-47.5 412412001 8.59 0.5 025 U 0.15 0 4.02 0.3 25 0.3
W-31s North Plume Shallow 5-15 1111/1998
W-31s Oup North Plume Shallow 5-15 11119/1998 6.5 u 17.4 0.4 64.1 6 10 u
W-31s North Plume Shallow 5-15 11/19/1998 6.0 u 0.975 0.45 12.8 7 9.1 u
W-31s Dup North Plume ShaUow 5-15 12/16/1998
W-31s North Plume ShaUow 5-15 12/16/1998 0.4 0.50 1.420 0.3 4.730 2.9 10 u
W-31s d North Plume Shallow 5-15 617/1999 54.6 1.0 u 1.41 0 66.7 2.1 u 0
W-31s" North Plume Shallow 5-15 611011999 1.10 1.0 0.89 0.784 0.4 1.31 0.9 3.8 0
W-31s North Plume Shallow 5-15 1216/1999 0.491 0.95 0.152 0.3 0.597 1.6 3.8 0
W-31s Dup North Plume Shallow 5-15 12/16/1999 0.51 1.4 4.4 22
W-31s North Plume Shallow 5-15 615/2000 4.82 1.7 0.176 J 0 6.33 1.1 3.9 0
W-31s North Plume ShaDow 5-15 11/27/2000 1.29 1.0 1.9 0.0687 0 1.62 0.7 1.0 U 0.1
W-31s North Plume Shallow 5-15 4123/2001 4.03 1.0 1.8 0.325 0 5.68 0.6 3.5 0
P:\Proj\18895\1889S.D1 6\apr-01-tAOt Page 29 of 51
.. -ll.W' ... 1!!!1111 ~ -.. ----... -· -... a1' .. -Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Electron Acce~tors
WeU Field
Screened Sampling Manganese Manganese
Monitoring wen Zone Well Type Depth Date Aluminumd Field DO Nitrate/Nitrite (total) (II) Iron (total) Field Iron (II) .Sulfate Field Sulfide H,S
(It) (mg/L) (ppm) (mg/L) (mg/L) (ppm) (mg/L) (ppm) (mg/L) (mg/L) (mg/L)
, FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan: 0.05 0.05 0.3
W-31i North Plume lntennediate 34-44 11/1/1998
W-31i North Plume Intermediate 34.44 11/19/1998 1.6 0.50 0.0045 u 0.0399 u 11 u
W-31i North Plume Intermediate 34-44 12/1611998 0.6 0.60 0.0048 B 0.15 0.0208 B 0.1 6.6 u
W-31i North Plume Intermediate 34-44 617/1999 0.546 0.6 0.93 0.0101 B 0 0.336 0.8 15 2
W-31i North Plume Intermediate 34-44 12/611999 0.087 0.6 0.56 0.0057 0 0.107 0.3 9.7 0.1
W-31i North Plume Intermediate 34-44 615/2000 0.0818 B 0.6 0.45 0.0054 BJ 0 0.0915 B 0.25 9.6 0
W-31i Dup (field) North Plume lntennediate 34-44 11/27/2000 1.0
W-31i North Plume Intermediate 34-44 11/27/2000 0.435 1.0 0.49 0.0342 0 0.604 0.2 25 0.1
W•311 North Plume Intermediate 34-44 4/23/2001 0.050 U 0.8 0.64 0.0079 B 0 0.050 U 0.3 13 0
W-32i South Plume Intermediate 112-132 11/1/1998
W-32i South Plume Intermediate 112-132 11/19/1998 1o" 0.59 0.0288 u 1.2 14 u
W-321 South Plume Intermediate 112-132 12/18/1998 1.0 0.74 0.01_22 B 0.1 0.344 u 10 u
W-32i South Plume Intermediate 112-132 6/9/1999 0.143 B 0.8 0.53 0.0154 0 0.217 0.1 8.8 0
W-32i South Plume Intermediate 112-132 1217/1999 0.101 1 0.36 0.0142 0 0.157 0.1 10 0
W-32i South Plume Intermediate 112-132 618/2000 0.0906 BJ 0.2 0.32 0.0172 J 0 0.0879 B 0.5 9.6 0.7
W-32i Dup (field) South Plume Intermediate 112-132 11/28/2000 1.0 0 0.1 0
W-32i South Plume Intermediate 112-132 11/28/2000 0.050 U 1.0 0.6 0.0125 0 0.0776 0 12 0
W-321 South Plume lntennedlate 112-132 4/26/2001 0.0699 B 0.1 0.42 0.0105 B 0 0.0992 B 0.2 12 0
P;\Proj\18895\ 188115.016',;tpr-01-tA0 1 Page 30 of 51
-- -- --- -- ---- - - - - - -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Products of Degradation
Well
Screened Sampling Volatile Fatty
Monitoring Wen Zone WeUType Depth Date Field CO2 Alkalinity Methane Ethene Ethane Acids Chloride
(ft) (mg/I.) (mg/I.) (µg/1.) (µg/1.) (µg/1.) (mg/I.) (mg/I.)
FCX OU3 Groundwater Perfonnance standards eer the RA Work Plan:
MW-1 South Plume Shallow 41.56-51.56 4129/1994
MW-1Dup South Plume Sh~low 41.56-51.56 10/10/1994
MW-1 South Plume Shallow 41.56-51.56 10/10/1994
MW-1 South Plume Shallow 41.56-51.56 5116/2001 25 1.0 0.12 0.0050 U 0.0050 U 9.7
MW-2 South Plume Shallow 42.52-52.52 4129/1994
MW-2 South Plume Sh~low 42.52-52.52 10/10/1994
MW-2 South Plume Shallow 42.52-52.52 512312001 65 4.6 0.58 8 0.025 8 0.017 8 24
MW-3 South Plume Sh~low 43.01-53.01 4129/1994
MW-3 South Plume ShaDciw 43.01-53.01 9128/1994
MW-3 South Plume Shallow 43.01-53.01 5116/2001 65 3.6 0.039 0.780 0.0050 U 8.5
MW-4Dup Side Gradient ShaDow 51.43-61.43 4/28/1994
MW-4 Side Gradient ShaUow 51.43-61.43 4128/1994
MW-4 Side Gradient Shallow 51.43-61.43 10/5/1994
MW-4 Side Gradient Shallow 51.43-61.43 5/1712001 25 1.3 0.080 8 0.093 J 0.0050 UJB 5.0
Mv\'•5S South Plume ShaUow 48.03-58.03 4128/1994
MN-Ss South Plume ShaUow 48.03-58.03 10/5/1994
MW-5s South Plume ShaDow 48.03-58.03 12/11/1995
MW-5s South Plume Shallow 48.03-58.03 5116/2001 30 1.6 0.045 0.060 0.0050 U 10
MW-5d South Plume Intermediate 18.76-30.54 4129/1994
MW-5d South Plume Intermediate 18.76-30.54 10/6/1994
MW-5d South Plume Intermediate 18.76-30.54 12/13/1995
MW•Sd South Plume lntennedlate 18.76-30.54 5123/2001 10 42 2.3 8 0.075 8 0.010 8 25
MW-6s South Plume ShaDow '45.36-55.36 4/28/1994
MW-6s South Plume Shallow 45.36-55.36 10/6/1994
MW-6s South Plume Shallow 45.36-55.36 5122/2001 55 1.0 U 0.053 8 0.0050 UB 0.0050 UB 19
MW-6d Dup South Plume Intermediate 26.8-16.3 4129/1994
MW-6d South Plume Intermediate 26.8-16.3 4129/1994
.MW-6d South Plume Intermediate 26.8-16.3 10/4/1994
MW-6d South Plume lntennedlate 26.8-16.3 5122/2001 20 47 4.48 0.079 8 0.03 8 5.8
MW-6d Dup South Plume Intermediate 26.8-16.3 5/22/2001 20 39 2.6 8 0.052 8 0.032 8 5.7
MW-7 South Plume Sh~low 37.0-47.0 4/2811994
MW-7 South Plume Shallow 37.0-47.0 9129/1994
MW-7 South Plume Shallow 37.0-47.0 5122/2001 60 1.5 0.079 8 0.012 8 0.0050 UB 8.2
P:\ProJ,18895\ 18895.016\apr-01-IAOl Page 31 of 51
----------- - -- -- -- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuatio_n •
FCX-Statesville Superfund Site OU3
Well Information Products of Degradation
Well
Screened SampHng Volatile Fatty
Monitoring wen Zone WellType Depth Date Field CO, Alkalinity Methane Ethene Ethane Acids Chloride
(ft) (mg/L) {mgll) {µ9/L) {µg/L) {µ9/L) (mg/L) {mg/L)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan:
MW-8 Side Gradient Shallow 45.85-55.88 4/28/1994
MW-8 Side Gradient Shallow 45.85-55.88 9/29/1994
MW-8 Side Gradient Shallow 45.88-55.88 5/16/2001 15 5.7 0.057 0.0050 U 0.0050 U . 1.0 U
MW-9 Side Gradient Shallow 53.5-83.5 4/29/1994
MW-9Dup Side Gradient Shanow 53.5-83.5 10/7/1994
MW-9 Side Gradient ShaUow 53.5-83.5 10/7/1994
MW-9 Side Gradient Shallow 53.5-63.5 5/21/2001 60 29 0.44 B 0.034 B 0.073 B 5.4
MW-10 Side Gradient Shallow 50.55-80.56 4/28/1994
MW-10 Side Gradient Shallow 50.55-80.56 9/28/1994
MW-10 Side Gradient Shallow 50.56-60.56 5/21/2001 35 8.4 0.12 B 0.0050 UB 0.0050 UB 15
MW-11 South Plume Intermediate 4.0-8.0 4/29/1994
MW-11 South Plume Intermediate 4.0-8.0 10/6/1994
MW-11 South Plume Intermediate 4.0-8.0 12/13/1995
MW-11 South Plume lntennedlate 4.0-8,0 5/23/2001 20 n 027 B 0.049 B 0.054 B 8.4
W•1s Side Gradient ShaUow 3448 4/27/1994
W-1s Dup Side Gradient Shallow 34-48 10/6/1994
W-1s Side Gradient Shanow '3448 10/6/1994
W-1s Side Gradient ShaUow 35-48 12/19/1998 16 13 0.14 0.007 0.011 u u
W-1s Side Gradient Shallow 3448 5/18/2001 30 1.0 U 0.069 0.0050 U 0.0050 U 1.2
W-1i Side Gradient Intermediate 65.5-72.5 10/6/1994
W-11 Side Gradient Intermediate 65.5-72.5 5/16/2001 10 17 0,39 1.400 0.026 1.0
W-2s Side Gradient Shallow 33.5-43.5 4/27/1994
W-2s Side Gradient Shallow 33.5-43.5 10/5/1994
W-2s Side Gradient Shallow 33.5-43.5 5/15/2001 25 1.5 0.063 0.470 0.0050 U 2.7
W-~ Side Gradient Intermediate 83-93 10/5/1994
W-2i Side Gradient Intermediate 83-93 5/15/2001 SU 71 0.71 2.000 0.024 2.0
W-3s South Plume Shallow 34.0-44.0 4/27/1994
W-3s South Plume Shaflow 34.0-44.0 10/10/1994
W-3s South Plume Shallow 34.0-44.0 5/15/2001 20 4.2 0.086 0.0050 U 0.0050 U 52
W-4s Dup South Plume Shallow 34-44 4/27/1994
W-4s South Plume ShaOow 3444 4/27/1994
W-4s South Plume ShaDow 34-44 9/28/1994
P:\f>roj\ 18895\ 18895.01 6\apr-01-IA01 Page 32 of 51
-- - --- ---- -- - ------Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Products of De9radation wen
Screened Sampling Volable Fatty Monitoring wen Zone WeU Type Depth Date Field CO2 Alkalinity Methane Ethene Ethane Acids Chloride
(ft) (mg/I.) (mg/I.) (µg/1.) (µg/1.) (µg/L) (mg/I.) (mg/I.)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan:
W-5s South Plume Shallow 32-42 4/2711994
W-5s Dup South Plume Shallow 32-42 10/11/1994
W-5s South Plume Shallow 32-42 10/11/1994
W-5s South Plume ShaUow 32-42 4/30/1998 112 u u u u 12 34'
W-5s South Plume Shallow 32-42 12/17/1998 234 7.6 6.2 0.024 0.30 6.0 5.3
W-5s b South Plume ShaDow 32-42 6/9/1999 105 9.3 4.5 0.12 0.015 4.3
W-5s South Plume Shanow 32-42 12/7/1999 85 7.8 u u u 13 4.7
W-5s Dup South Plume ShaUow 32-42 12/17/1999 9.8 6.48 0.03 0.14 3.0 5.6
W-5s South Plume Shallow 32-42 6/6/2000 85 10 5.0 U 1.0 U 1.0 U 7.8 U 5.2
W-5s South Plume Shallow 32-42 11/28/2000 4.5 7.0 0.16 0.026 250 I 6.3
W-Ss South Plume Shallow 32-42 4/23/2001 5.7 0.09 0.021
W-Si South Plume Intermediate 56-66 10/11/1994
W-Si South Plume Intermediate 56-66 5/5/1998 40 39 u u u 14 2.0
W-Si South Plume Intermediate 56-66 12/19/1998 38 52 0.56 0.36 0.15 3.0 1.3
W-Si South Plume Intermediate 56-66 6/811999 60 51 0.48 0.072 0.091 2.4
W-Si South Plume Intermediate 56-66 12/8/1999 20 56 u u u 5.5 2.2
W-Si Oup South Plume Intermediate 56-66 6/9/2000 40 60 5.0 U 1.0 U 1.0 U 7.8 U 2.5
W-5i South Plume Intermediate 56-66 6/9/2000 40 59 5.0 U 1.0 U 1.0 U 39 I 2.4
W-5i South Plume Intermediate 56-66 11/30/2000 18 57 0.39 · 0.77 0.1 10 3.3
W-51 South Plume lntennedlate 56-66 4/23/2001 20 34 0.41 0.086 0.069 3.0 U 2.1
W-6s Dup Side Gradient Shallow 22-37 10/12/1994
W-6s Side Gradient ShaUow 22-37 10/12/1994
W-6s Dup Side Gradient Shanow 22-37 4/30/1998
W-6s Side Gradient Shallow 22-37 4/30/1998
W-6s Side Gradient Shallow 22-37 5/15/2001 50 6.1 0.23 0.230 0.100 84
W-7s · North Plume Shallow 15-30 10/12/1994
W-7s North Plume Shallow 15-30 5/16/2001
W-8s Side Gradient Shallow 211-35 10/11/1994
W-8s Side Gradient Shallow 211-35 1/10/1995
W-6s Side Gradient Shallow 211-35 12/12/1995
W-8s Side Gradient Shallow 20-35 5/15/2001 35 1.0 U 0.032 1.300 0.0050 U 1.4
W-8i Side Gradient Intermediate 83-93 10/11/1994
W-Bi Side Gradient Intermediate 83-93 1/11/1995
W-8i Side Gradient Intermediate 83-93 12/14/1995
W-8i Side Gradient Intermediate 83-93 12/16/1998 2 110 0.77 27 0.15 3.0 9.2
W-81 Slde Gradient Intermediate 83-93 5/15/2001 SU 130 0.59 4.200 0.110 8
P;\Prtlj"\1 se95\18895.016\apr..01-IA01 Page 33 of 51
-- -- ------ - -- - ---- -
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well lnfonnation Products of Degradation
Well
Screened Sampling Volatile Fatty
Monitoring Well Zone Welt Type Depth Date Field CO2 Alkalinity Methane Ethene Ethane Acids Chloride
(fl) (mg/L) (mg/L) (µg/L) (µg/L) (µg/L) (mg/L) (mg/L)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan:
W-9s Treatment ShaHow 34-49 10/1111994
W-9s Dup Treatment Shallow 34-49 5/5/1998 u u u u 4.6 4.7
W-9s Treabnent Shallow 34-49 5/5/1998 u u u u 5.7 4.9
W-9s Treatment Shallow 34-49 12/17/1998 2.2 0.51 0.009 0.12 u 3.1
W-9s Treatment Shallow 34-49 5115/2001 20 1.0 U 0.18 0.0050 U 0.023 1.5
W-9i Treatment Intermediate 81-91 10/11/1994
W-91 Treatment Intermediate 81-91 5115/2001 5 27 0.32 0.0050 U 0.031 1.4
W-10s South Plume Shallow 20-35 10/7/1994
W-10s South Plume Shallow 20-35 1/10/1995
W-10s South Plume Shallow 20-35 12/14/1995
W-10s South Plume Shallow 20-35 5116/2001 15 3.3 0.055 0.0050 U 0.0050 U 2.1
W-10i Side Gradient Intermediate 59-69 10/7/1994
W-10i Side Gradient Intermediate 59-69 1/11/1995
W-10i Side Gradient Intermediate 59-69 12/12/1995
W-10i Side Gradient Intermediate 59-69 4/30/1998 15 38 u u u 12 u
W-10i Side Gradient Intermediate 59-69 12/19/1998 10 39 1.6 0.010 0.016 -u u
W-10i Side Gradient lntennediate 59-69 6/8/1999 15 39 540 0.63 u 1.1
W-10i Side Gradient Intermediate 59-69 12/9/1999 10 38 u u u u 1.1
W-tOi Side Gradient Intermediate 59-69 6/6/2000 10 55 93 1.0 U 1.0 U 7.8 U 1.3
W-1 0i ll\Jp (fie~) Side Gradieiit lntennediate 59-69 11/28/2000
W-10i Side Gradient Intermediate 59-69 11/28/2000 10 37 1,600 1 0.98 0.005 U 14 1.5
W-10i South Plume lntennedlate 59-69 4/24/2001 5 38 430 0.45 0.005 U 3.0 U 1.3
W-11s Dup Side Gradient Shallow 25-40 10/5/1994
W-11s Side Gradient Shanow 25-40 10/511994
W-11s Side Gradient Shallow 25-40 1/1011995
W-11s Side Gradient ShaDow 25-40 4130/1998
W-11s Side Gradient Sh~llow 25-40 5/1712001 1.0 U 0.088 B 0.014 J 0.0050 UJB 6.8
W-12s Background Shanow 18-33 10/4/1994
W-12s Oup Background ShaDow 18-33 1/1011995
W-12s Background ShaDow 18-33 1/10/1995
W-12s Background ShaDow 18-33 4130/1998 24 u u u u 5.7 1.9
W-12s Background Shallow 18-33 12/8/1999
P:\proj"118895118l!9S.01 Slapr-01-tA01 Page 34 of 51
---- -- --- ---== iillil --iii) iiiil Iii!
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Products of Degradation
Well
Screened Sampling Volatile Fatty
Monitoring Well Zone Wen Type Depth Date Field CO2 Alka01itf Methane Ethene Ethane Acids Chloride
(ft) (mg/L) (m9/L) (µ9/L) (µ9/L) (µ9/L) (mg/L) (mg/L)
FCX OUJ Groundwater Performance Standards e!:r the RA Work Plan:
W-12i Oup Background Intermediate 73-83 10/4/1994
W-12i Background Intermediate 73-83 10/4/1994
W-12i Background Intermediate 73-83 1/11/1995
W-12i Background Intermediate 73-83 4/30/1998 60 25 u u u 34 30
W-11i Background Intermediate 73-83 11/16/1998 55 31 1.1 0.018 0.16 u 31
W-12i Background tntennediate 73-83 6/7/1999 120 1 31 1.7 0.016 u 18
W-12i Background lntennediate 73-83 11/9/1999 30 33 u u u 70 33
W-121 Background Intermediate 73-83 6/7/1000 50 50 230 1 1.0 U 1.0 U 39 33
W-11i Background Intermediate 73-83 11/19/1000 50 19 14 0.015 0.005 U 10 37
W-121 Background Intermediate 73-83 4/25/2001 5 u' 33 1,600 1 0.42 0.005 U 3.0 U 33
W-13iDup Side Gradient Intermediate 70-80 10/3/1994.
W-13i Side Gradient Intermediate 70-80 10/3/1994
W-131 Side Gradient Intermediate 70-80 5122/2001 SU 150 2.8 B 0.640 0.020 B 6.6
W-14s Dup Side Gradient Shallow 37-51 9/29/1994
W-14s Side Gradient Shallow 37-51 9/29/1994
W-14s Side Gradient Shallow 37-51 1/10/1995
W-14s Side Gradient Shallow 37-52 5/18/2001 35 21 0.84 B 0.047 J 0.024 JB 6.0
W-14i Side Gradient Intermediate 105-115 9/30/1994
W-14i Side Gradient Intermediate 105-115 1/10/1995
W-141 Side Gradient lntennediate 105-115 5/23/2001 15 60 730 1.100 0.0050 UB 7.1
W-15s Side Gradient Shallow 30-45 9/19/1994
W-15s Side Gradient ShaOow 30-45 1/10/1995
W-15s Side Gradient Shallow 30-45 5/18/2001 8.2 0.074 B 0.0050 UJ 0.0050 JB 1.0
W-15i Dup Side Gradient Intermediate 71-81 9/30/1994
W-15i Side Gradient Intermediate 71-81 9/30/1994
W-15i Side Gradient Intermediate 71-81 1/10/1995
W-15i Side Gradient Intermediate 71-81 6/26/2001 60 0.16 B 0.11 0.012 B 1.1
W-151 Oup Side Gradient Intermediate 71-81 6/26/2001 64 0.17 B 0.11 0.0089 B 1.0
W-16s Treatment ShaHow 35-50 10/11/1994
W-16s Treatment Shallow 35-50 5/5/1998
W-16s Treatment Shal!Ow 35-50 11/17/1998
W-16s Treatment Shallow 35-50 5116/2001 30 1.0 U 028 0.0050 U 0.0050 U 22
W-16i Treatment Intermediate 77-87 10/11/1994
W-16i Treatment Intermediate 77-87 5/5/1998
W-16i Treatment Intermediate 77-87 11/17/1998
W-161 Treatment Intermediate 77-87 5/16/2001 10 54 0.074 0.0050 U 0.036 14
l>;\Praj\1 8895\18895.01 6\apr-01-IA01 Page 35 of 51
----- - --------II!!!! == &iiiil liilil -Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Products of Degradation
WeU
Screened Sampling Volatile Fatty
Monitoring Well Zone WeU Type Depl/1 Date Field CO2 Alkalinity Methane Ethene Ethane Acids Chloride
(ft) (mg/L) (mg/L) (µg/1.) (µg/1.) (µg/1.) (mg/I.) (mg/I.)
FCX OUJ Groundwater Perfonnance Standards eer the RA Work Plan:
W-17s Source Shallow 29.5-44.5 10/11/1994
W-17s Source Shallow 29.5-44.5 1/10/1995
W-17s Source ShaHow 29.5-44.5 5/5/1998 46 u u u u 5.7 27
W-17s Source Shallow 29.5-44.5 12/18/1998 32 3.9 1.9 0.06 0.12 3.0 29
W-17sd Source Shallow 29.5-44.5 12/9/1999 u u u
W-17s Source ShaUow 29.5-44.5 6/612000
W-17s Source ShaUow 29.5-44.5 11/28/2000 7.2 0.35 0.055
W-17s Source Shallow 29.5-44.5 4/24/2001 0.44 0.09 0.019
W-18s Background Shallow 22.5-37.5 12/11/1995
W-18s Background Shallow 22.5-37.5 4/30/1998 90 1 u u u u 23 u
W-18s Background Shallow 22.5-37.5 12/16/1998 3.3 0.37 0.006 0.1 3.0 u
W-18s Background Shallow 22.5-37.5 6/8/1999 30 3.5 0.14 u u 1.7
W-18s C Background Shallow 22.5-37.5 12/6/1999 30 2.2 u u u u u
W-18s Background Shallow 22.5-37.5 6/6/2000 50 3.4 5.0 U 1.0 U 1.0 U 7.8 U 1.3
W-18s Background Shallow 22.5-37.5 11/26/2000 30 3.4 1.7 0.0081 0.005 U 7.0 1.3
W-18s Background Shallow 22.5-37.5 4/23/2001 20 3.5 0.19 0.005 U 0.005 U 3.0 U 2.5
W-19s North Plume Shallow 17-27 12/14/1995
W-19s North Plume Shallow 17-27 5/5/1998 100 26 u u u 18 31
W-19s North Plume ShaUow 17-27 12/17/1998 15 0.34 0.012 0.083 3.0 34
W-19s North Plume Shanow 17-27 6/10/1999 73 16 0.33 u u 43
W-19s North Plume ShaUow 17-27 12/7/1999 55 13 u u u 13 48
W-19s North Plume Shallow 17-27 6/6/2000 55 18 5.0 U 1.0 U 1.0 U 7.8 U 44
W-19s North Plume ShaUow 17-27 11/28/2000 55 7.4 0.07 0.02 0.005 U 28 I 43
W-19s Dup North Plume Shallow 17-27 11/28/2000 2.2 0.018 0.005 U 7.0 44
W•19s North Plume Shallow 17-27 4/24/2001 20 1 12 0.70 0.083 0.083 3.0 U 42
W-20s North Plume Shallow 4-14 12/12/1995
W-20s Dup North Plume Shallow 4-14 4/29/1998 29 u u u 2.9 u
W-20s North Plume Shallow 4-14 4/29/1998 40 1 28 u u u 12 u
W-20s North Plume ShaUow 4-14 12/20/1998 14 33 0.097 u 0.014 3.0 u
W-20s North Plume Shallow 4-14 6/8/1999 40 I 31 0.074 u u 1.6
W-20s Dup North Plume Shallow 4-14 12/7/1999 37 u u u 8.8 2.1
W-20s North Plume Shallow 4-14 . 12/7/1999 14 37 u u u 8,8 2.0
W-20s Dup North Plume Shallow ·4-14 6/8/2000 15 34 5.0 U 1.0 U 1.0 U 7.8 U 1.9
W-20s North Plume Shallow 4-14 6/8/2000 15 34 5.0 U 1.0 U 1.0 U 7.8 U 1.8
w.20s North Plume Shallow 4-14 11/29/2000 10 34 0.046 0.01 0.005 U 10 4.5
W-20s North Plume Shallow 4-14 4/2412001 15 35 0.66 0.064 0.058 3.0 U 3.2
P:\Proj\18895\18895.0 l6\apr-01-tA01 Page 36 of 51
iiiiil Iii! liiiiil -liiiiliil -liilil _, -iiiil liiiiiD -_, _, _, __, mliiiii1 ;a, ==
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Products of Degradation
Well
Screened SampUng Volatile Fatty
Monitoring Well Zone WeUType Depth Date Field CO2 Alkalinity Methane Ethene Ethane Acids Chloride
(ft) (mg/I.) (mg/I.) (µg/1.) (µ9/1.) (µ9/1.) (mg/I.) (mg/L)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan:
W-20i North Plume Intermediate 84-94 3/25/1996
W-20i North Plume Intermediate 84-94 4/29/1998 14 56 u u u 26 14
W-20i North Plume Intermediate 84-94 11115/1998 16 64 1.4 0.55 0.22 u 36
W-20i North Plume Intermediate 84-94 1/26/1999
W-2rn North Plume Intermediate 84-94 1/27/1999
W-2rn North Plume Intermediate 84-94 6/8/1999 20 61 1.6 0.028 0.025 23
W-20i North Plume Intermediate 84-94 1117/1999 10 68 u u u 13 35
W-20i North Plume Intermediate 84-94 6/8/2000 10 64 130 I 1.0 U 1.0 U 7.8 U 30
W-20i Dup (field) North Plume Intermediate 84-94 11/30/2000 15
W-20i North Plume Intermediate 84-94 11/30/2000 15 68 6.5 0.013 0.0072 10 40
W-20I North Plume Intermediate 84-94 4/24/2001 10 64 4,400 I 0.43 I 0.0086 3.0 U 28
W-20de North Plume Deep 152-166 9/23/1998
W-20d North Plume Deep 152-166 11117/1998 610 4.1 0.43 0.26 u 6.7
W-20d North Plume Deep 152-166 6/9/1999 510 1.8 0.59 0.064 2.9
W-20d North Plume Deep 152-166 11/9/1999 5 U 460 u u u 7.4 2.6
W-20d North Plume Deep 152-166 6/9/2000 5 U 180 5.0 U 1.0 U 1.0 U 7.8 U 2.7
W-20d North Plume Deep 152-166 11/29/2000 5 U 300 2.6 2.2 0.15 120' 1.8
W-20d North Plume Deep 152-166 4/25/2001 SU 170 1.1 1.8 0.047 3.0 U 3.2
W-21s North Plume Shanow 10-20 1111111995
W-21s North Plume Shallow 10-20 5/17/2001 5.1 0.079 B 0.0050 UJ 0.0050 UJB 3.5
W-22s South Plume Shallow 20-35 12114/1995
W-22s South Plume Shal!ow 20-35 5/1/1998 55 u u u u 14 9.9
W-22s South Plume Shallow 20-35 11120/1998 60 u 0.26 0.011 0.013 3.0 8.4
W-22sd South Plume Shallow 20-35 1118/1999 1.0 U u u u u 7.3
W-22s South Plume Shallow 20-35 6///2000 5.7 5.0 U 1.0 U 1.0 U 7.8 U 6.8
W-22i South Plume Intermediate 57-67 3/25/1996
W-22i South Plume Intermediate 57-67 5/1/1998 105 49 u u u 34 16
W-22i South Plume Intermediate 57-67 11120/1998 100 45 1.1 0.011 0.013 3.0 14
W-22i South Plume Intermediate 57-67 6/9/1999 85 57 33 0.69 0.262 9.9
W-22i Oup South Plume Intermediate 57-67 1118/1999 53 420 u u u 7.7
W-22i South Plume Intermediate 57-67 1118/1999 65 53 420 u u u 7.9
W-23s Oup South Plume Shallow 25-40 1/29/1996
W-23s South Plume Shallow 25-40 1/29/1996
W-23s South Plume Shallow 25-40 5/23/2001 35 1.5 0.10 B 0.027 B 0.0074 B 36
P:\Proj\ 1 8895\18895.016\apr-O \-IAD1 Page 37 of 51
------------- ---I!!!!!!!! I !!l!9 ==
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well I nfonnation Products of Degradation
WeU
Screened Sampling Volatile Fatty Monitoring Wen Zone Well Type Depth Date Field CO2 Alkalinity Methane Ethene Ethane Acids Chloride
(ft) (mg/L) (mg/L) (µg/L) (µg/L) (µg/L) (mg/L) (mg/L)
FCX OU3 Groundwater Perfonnance standards eer the RA Work Plan:
W-24s South Plume ShaUow 5-20 12/13/1995
W-24s South Plume Shanow 5-20 5/1/1998 15 0.408 u u 17 14
W-24s Dup South Plume ShaDow 5-20 1/27/1999
W-24s South Plume ShaUow 5-20 1/27/1999 90 14 51 0.041 u 3.0 29
W-24s South Plume Shallow 5-20 6/9/1999 55 17 0.34 u u 18
W-24s South Plume Shallow 5-20 12/8/1999 80 14 u u u u 12
W-24s South Plume Shallow 5-20 6/7/2000 65 15 16 1.0 U 1.0 U 16 28
W-24s South Plume Shanow 5-20 11/29/2000 110 20 0.03 0.005 U 0.005 U 7.0 14
W-24s South Plume Shallow 5-20 4/25/2001 20 I 10 0.14 0.005 U 0.005 U 3.0 U 25
W-25s Dup Side Gradient Shanow 111-25 12/12/1995
W-25s Side Gradient ShaDow 111-25 12/12/1995
W-25s Side Gradient Shallow 10-25 5/17/2001 30 2.0 0.081 B 0.0050 UJ 0.0050 UJB 18
W-26i Dup Side Gradient lntennediate 103-118 12114/1995
W-26i Side Gradient Intermediate 103-118 12/14/1995
W-26i Side Gradient Intermediate 103-118 12/16/1998 14 86 1.3 1.3 0.16 3.0 14
W-261 Side Gradient Intermediate 103-118 5/17/2001 10 78 0.68 B 1.000 J 0.032 JB 11
W-261 Dup Side Gradient Intermediate 103-118 5/17/2001 10 79 0.68 J 1.000 J 0.030 J 11
W-27s South Plume Shallow 25-40 12/12/1995
W-27s South Plume Shallow 25-40 5/22/2001 40 1.5 0.096 B 0.038 B 0.044 B 24
W-28i Dup North Plume Intermediate 73-88 12/19/1995
W-28i North Plume Intermediate 73-88 12/19/1995
W-28i North Plume Intermediate 73-88 5/5/1998 2 84 u u u 40· 5.2
W-28i North Plume Intermediate 73-88 12/18/1998 120 1.5 0.43 0.24 3.0 3.2
W-281 North Plume Intermediate 73-88 6/8/1999 130 0.66 0.85 0.11 4.3
W-28i North Plume Intermediate 73-88 12/7/1999 5 U 120 u u u u 2.6
W-28i North Plume Intermediate 73-88 6/8/2000 5 U 150 5.0 U 1.0 U 1.0 U 39 2.8
W-28i North Plume Intermediate 73-88 11/29/2000 5 U 120 2.5 2.2 0.38 10 3.2
W-28i North Plume Intermediate 73-88 4/25/2001 5 U 140 1.0 1.4 0.16 3.0 U 3.1
W-28d North Plume Deep 234-249 5/1712001 5 U 240 2.7 B 2.100 J 0.072 JB 8.5
P:\Prtlj"\18895\18895.01 6'apr-01-tA01 Page 38 of 51
--- -- - ----I!!!!!! .. -= -1111111 -iliiil liilil 1111
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well lnfonnation Products of Degradation
Well
Screened Sampling Volatile Fatty Monitoring Well Zone wf!n Type Depth Date Field CO2 Alkalinity Methane Ethene Ethane Acids Chloride
(ft) (mg/L) (mg/L) (µg/L) (µ9/L) (µ9/L) (mg/L) (mg/L)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan:
W-29i Dup South Plume Intermediate 88-98 12/13/1995
W-29i South Plume Intermediate 88-98 12/13/1995
W-29i South Plume Intermediate 88-98 5/1/1998 50 8.1 u u u 17 23
W-29i Dup South Plume Intermediate 88-98 12/20/1998 58 11 0.24 0.01 0.02 3.0 21
W-29i South Plume Intermediate 88-98 12/20/1998 60 8.7 0.26 0.009 0.019 3.0 21
W-29i Dup South Plume Intermediate 88-98 6/9/1999 80 12 0.43 0.050 0.016 14
W-29i South Plume lnterrnediate 88-98 6/9/1999 80 12 0.33 0.034 0.007 15
W-29i Dup South Plume Intermediate 88-98 12/9/1999 9.4 u u u 5.5 19
W-29i South Plume Intermediate 88-98 12/911999 45 9.4 u u u 5.5 19
W-29i Dup South Plume Intermediate 88-98 6/7/2000 50 15 5.0 U 1.0 U 1.0 U 7.8 U 22
W-29i South Plume Intermediate 88-98 6/7/2000 50 10 5.0 U 1.0 U 1.0 U 7.8 U 21
W-29i South Plume Intermediate 88-98 11/29/2000 60 7.9 1.2 0.026 0.005 U 7.0 20
W-291 Dup (W-GB) South Plume lntennedlate 88-98 4/24/2001 10 10 0.59 0.033 0.026 3.0 U 16
W•291 South Plume . Intermediate 88-98 4/24/2001 10 13 0.37 0.029 0.026 3.0 U 17
W-30i North Plume Intermediate 37.5-47.5 12/19/1995
W-30i North Plume Intermediate 37.5-47.5 4/30/1998 19 170 u u u 49' 30
W-30i North Plume Intermediate 37.5-47.5 12/19/1998 18 140 1.4 0.46 0.095 9.0 22
W-30i North Plume lnlennediate 37.5-47.5 1/26/1999
W-30i North Plume Intermediate 37.5-47.5 1/27/1999
W-30i North Plume Intermediate 37.5-47.5 6/9/1999 5 130 1.7 0.99 0.45 19
W-30i North Plume Intermediate 37.5-47.5 1218/1999 5 U 140 u u u 11 21
W-30i North Plume Intermediate 37.5-47.5 617/2000 5U 190 5.0 U 1.0 U 1.0 U 16 23
W-30i North Plume Intermediate 37.5-47.5 11/29/2000 22 150 130 1 2.1 0.25 10 26
W-301 North Plume Intermediate 37.5-47.5 4/24/2001 5 U 130 290' 1.4 0.13 3.0 U 31
W-31s North Plume Shallow 5-15 11/1/1998
W-31s Dup North Plume Shallow 5-15 11/19/1998 50 55 11.5 5.9 1.2 u 4.6
W-31s North Plume Shallow 5-15 11119/1998 45 61 11.6 7.6 1.2 u 4.6
W-31s Dup North Plume Shallow 5-15 12/16/1998
W-31s t-!orlh Plume Shallow 5-15 12/16/1998 26 64 3.8 0.015 0.27 3.0 5.5
W-31s d North Plume Shallow 5-15 6/7/1999 43 0.48 u u 5.5
W-31s d North Plume Shallow 5-15 6/10/1999 25 39 0.19 u u 4.1
W-31s North Plume Shallow 5-15 12/6/1999 20 39 u u u u 3.1
W-31s Dup North Plume Shallow 5-15 12/16/1999 64 3.3 0.011 0.23 u 6.1
W-31s North Plume Shallow 5-15 6/5/2000 25 32 5.0 U 1.0 U 1.0 U 7.8 U 3.4
W-31s North Plume Shallow 5-15 11/27/2000 25 25 3.6 0.005 U 0.005 U 14 3.5
W-31s North Plume Shallow 5-15 4/23/2001 5 35 0.53 0.005 U 0.005 U 3.0 U 3.6
P:\Pn:ij\18695\18895.016\apr-01-IA0I Page 39 of 51
---- -- -.. ----!!!!!I =i Illa iiliil --11111
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Products of Degradation
Well
Screened Sampling Volatile Fatty Monitoring WeU Zone WcllType Depth Date Field CO2 AlkaUnity Methane Ethene Ethane Acids Chloride
(ft) (mg/l.) (mg/L) (µg/L) (µg/L) (µg/L) (mg/L) (mg/L)
FCX OUJ Groundwater Pertonnance Standards ~r the RA Work Plan:
W-31i North Plume Intermediate 34-41 1111/1998
W-31i North Plume Intermediate 34-41 11/19/1998 12 34 0.18 1.8 0.022 u 1.1
W-31i North Ph.Jme Intermediate 34-44 12/16/1998 10 31 0.80 0.019 0.21 u 1.5
W-31i North Plume Intermediate 34-44 617/1999 15 58 0.20 u u 2.5
W-31i North Plume Intermediate 34-41 12/6/1999 10 30 u u u u 1.7
W-31i North Plume lntennediate 34-41 6/512000 15 33 5.0 U 1.0 U 1.0 U 7.8 U 1.6
W-31i Oup (field) North Plume Intermediate 34-41 11127/2000
W-31i North Plume Intermediate 34-44 11127/2000 10 75 8.2 0.005 U 0.005 U 70' 3.2
W-31I North Plume lntennedlate 34-41 4/23/2001 5 34 0.19 0.03 0.0097 3.0 U 2.1
W-32i South Plume Intermediate 112-132 11/1/1998
W-32i South Plume Intermediate 112-132 11/19/1998 10 65 0.20 1.4 0.023 3.0 1.7
W-32i South Plume Intermediate 112-132 12/18/1998 16 67 0.52 0.061 0.097 3.0 1.9
W-32i South Plume Intermediate 112-132 6/9/1999 20 62 0.61 0.15 0.020 2.6
W-32i South Plume Intermediate 112-132 12ll/1999 8 61 u u u 83 2.5
W-32i South Plume Intermediate 112-132 6/812000 5 68 5.0 U 1.0 U 1.0 U 7.8 U 2.0
W-32i Oup (field) South Plume Intermediate 112-132 11/28/2000 16
W-32i South Plume Intermediate 112-132 11128/2000 14 58 0.19 0.14 0.011 100 I 2.8
W-32I South Plume Intermediate 112-132 4/2812001 10 62 0.33 0.22 0.019 310 2.7
P:\Proj\18895\ 18895.016\apr-01,IAOt Page 40 of 51
!!!I = --GillllB liiiiil liiiil liilil iiiilD liiil ------181 -lilil
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well lnfonnatlon Nutrients Geochemical Parameters
WeU
Screened Sampling Fleld Fi~d Monitoring Well Zone Well Type Depth Date TOC Phosphate TKN Ammonium Nitrate/Nibite Conductivity Temperature Field pH Field Eh
(ft) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (µmhos) (C) (unitless) (mv)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan:
MW-1 South Plume Shallow 41.56-51.56 4129/1994
MW-1Dup South Plume Shallow 41.56-51.56 10/10/1994
MW-1 South Plume ShaUow 41.56-51.56 10/10/1994
MW-1 South Plume Shallow 41.56-51.56 5116/2001 1.0 U 3.1 60 20.3 6.6 35
MW-2 South Plume Shallow 42.52-52.52 4129/1994
MW-2 South Plume Shallow 42.52-52.52 10/10/1994
MW-2 South Plume Shallow 42.52,52.52 5123/2001 1.9 5.4 100 19.0 52 345
MW-3 South Plume ShaHow 43.01-53.01 4129/1994
MW-3 South Plume Shallow 43.01-53.01 9128/1994
MW-3 South Plume Shallow 43.01-53.01 5116/2001 1.0 U 5.8 80 20.8 5.2 206
MW-4Dup Side Gradient Shallow 51.43-<1.43 412811994
MW-4 Side Gradient Shallow 51.43-<1.43 4/28/1994
MW-4 Side Gradient Shallow 51.43-61.43 10/5/1994
MW-4 Side Gradient Shallow 51.43-<1.43 5117/2001 1.0 U 13 120 182 52 249
MW-5s South Plume Shallow 48.03-58.03 4128/1994
MW-5s South Plume Shallow 48.03-58.03 10/5/1994
MW-5s South Plume Shallow 48.03-58.03 12/11/1995
MW-5s South Plume Shallow 48.03-58.03 5/18/2001 1.0 U 1.9 50 20.4 52 136
MW-5d South Plume Intermediate 18.76-30.54 4/29/1994
MW-5d South Plume Intermediate 18.76-30.54 10/6/1994
MW-5d South Plume Intermediate 18.76-30.54 12/13/1995
MW-5d South Plume Intermediate 18.76-30.54 5/23/2001 1.0 U 0.25 U 210 18.6 8.4 •52
MW-6s south Plume ShaUow 45.36-55.36 4128/1994
MW-6s South Plume Shallow 45.36-55.36 10/6/1994
MW-6s South Plume Shallow 45.36-55.36 5122/2001 1.0 U 7.8 110 21.4 5.8 232
MW-6d Dup South Plume Intermediate 26.8-16.3 4129/1994
MW-6d South Plume Intermediate 26.8-16.3 4129/1994
MW-6d South Plume Intermediate 26.8-16.3 10/4/1994
MW-6d South Plume Intermediate 26.8-16.3 5122/2001 1.0 U 0.25 U 100 20.3 6.9 86
MW-6d Dup South.Plume Intermediate 26.8-16.3 5122/2001 1.0 U 0.25 U 100 20.3 6.9 86
MW-7 South Plume Shallow 37.0-47.0 4/26/1994
MW-7 South Plume Shallow 37.0-47.0 9/29/1994
MW-7 South Plume Shallow 37.0-47.0 5/22/2001 1.8 22 200 18.0 5.1 302
P:\Proj\ 18895\ 18895.01 6\apr-01-IA01 Page 41 of 51
----l!!!!I -== -iiiiiii liiii1 liiiii) iiliil lillll ----liiil -Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation a
FCX-Statesville Superfund Site OU3
Well lnfonnatlon Nutrients Geochemical Parameters
WeU
Screened Sampling Field Field Monitoring WeD Zone WeO Type Depth Date TDC Phosphate TKN Ammonium Nitrate/Nitrite Conductivity Temperature Field pH Field Eh
(ft) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (µmhos) (C) (unitless) (mv)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan:
MW-8 Side Gradient Shallow 45.88-55.88 4/28/1994
MW-8 Side Gradient Shallow 45.88-55.88 9/29/1994
MW-8 Side Gradient Shallow 45.88-55.88 5116/2001 1.0 U 0.25 U 10 20.1 6.1 295
MW-9 Side Gradient Shallow 53.5-83.5 4/29/1994
MW-9Dup Side Gradient Sh~low 53.5-83.5 10/7/1994
MW-9 Side Gradient Shallow 53.5-63.5 10/7/1994
MW•9 Side Gradient Shallow 53.5-63.5 5121/2001 2.8 3.0 330 20.3 6.3 196
MW-10 Side Gradient Shaffow 50.56-60.56 4/28/1994
MW-10 Side Gradient Shallow 50.56-60.56 9/28/1994
MW-10 Side Gradient Shallow 50.56-60.56 5121/2001 1.0 U 2.7 60 21.1 6.0 221
MW-11 South Plume Intermediate 4.0-8.0 4/29/1994
MW-11 South Plume Intermediate 4.0-8.0 10/6/1994
MW-11 South Plume Intermediate 4.0-8.0 12113/1995
MW-11 South Plume lntennedlate 4.0-8.0 5123/2001 1.0 U 0.25 U 190 21.0 7.2 90
W-1s Side Gradient Shallow 34-48 4/27/1994
W-1s Dup Side Gradient Shallow 34-48 10/6/1994
W-1s Side Gradient Shallow 34-48 10/6/1994
W-1s Side Gradient Shallow 38-48 12/19/1998 u 0.58 15 21 5.5 300
W-1s Side Gradient Shallow 34-48 5116/2001 1.0 U 0.47 10 20.3 5.5 245
W-1i Side Gradient Intermediate 65.5-72.5 10/6/1994
W-11 Side Gradient Intermediate 65.5-72.5 5116/2001 1.0 U 0.38 40 19.9 7.7 30
W-2s Side Gradient Shanow 33.5-43.5 4/27/1994
W-2s Side Gradient ShaBow 33.5-43.5 10/5/1994
W-2s Side Gradient Shallow 33.5-43.5 511512001 1.0 U 1.5 20 19.8 5.2 208
W-2i Side Gradient Intermediate 83-93 10/5/1994
W-21 Side Gradient Intermediate 83-93 511512001 1.0 U 4.2 230 18.6 10.5 -10
W-3s South Plume Sh~lcw 34.0-44.0 4/27/1994
W-3s South Plume Shallow 34.0-44.0 10/10/1994
W-3s South Plume Shallow 34.0-44.0 5/1512001 2.9 0.31 10 20.8 5.2 221
W-4s Dup South Plume ShaUow 3444 4/27/1994
W-4s South Plume Shallow 34-44 4/27/1994
W-4s South Plume Shanow 34-44 9/28/1994
P:\Proj\18895\1 8H5.016\apr-01-IA01 Page 42 of 51
-.. lilil --liiil liill lliil ---Ill] ---1111} 1111 liiiil -Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Nutrients Geochemical Parameters
Well
Screened Sampling Field Field Monitoring WeU Zone WellType Depth Date TOG Phosphate TKN Ammonium Nitrate/Nitrite Conductivity Temperature Field pH Field Eh
(ft) (mg/I.) (mg/I.) (mg/I.) (mg/I.) (mg/I.) (µmhos) rcJ (unitless) (mv)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan:
W-5s South Plume Shallow 32-42 4127/1994
W-5s Dup South Plume Shallow 32-42 10/1111994
W-5s South Plume ShaUow 32-42 10/11/1994
W-5s South Plume Shalow 32-42 4130/1998 9.4 u u u 1.2 157 21.3 4.7 216
W-5s South Plume ShaHow 32-42 1211711998 5.6 1.9
W-5s b South Plume ShaUow 32-42 61911999 3.6 2.3 70 22.5 6.8 298
W-Ss South Plume Sha9ow 32-42 121711999 6.4 2.6 70 17.4 4.9 205
W-5s Dup South Plume Shallow 32-42 12117/1999 5.6 2.0
W-Ss South Plume Shallow 32-42 616/2000 6.1 3.2 80 19.4 5.0 85
W-Ss South Plume Shallow 32-42 11/28/2000 6.9 4.2 90 21.1 5.0
W-S. South Plume Shallow 32-42 4123/2001 60 20.0 4.8
W-Si South Plume Intermediate 56-66 10111/1994
W-Si South Plume Intermediate 56-66 51511998 1.0 0.11 u u u 161 19.8 8.3 136
W-Si South Plume Intermediate 56-66 1211911998 u u 120 16 6.8 132
W-Si South Plume Intermediate 56-66 61811999 3.6 u 150 19 7.7 320
W-Si South Plume Intermediate 56-66 1218/1999 u 0.26 140 16.4 6.5 100
W-5iDup South Plume Intermediate 56-66 61912000 1.5 0.25 U 140 19.3 6.9 114
W-Si South Plume lntennediate 56-66 619/2000 1.7 0.32 140 19.3 6.9 114
W-5I South Plume lntennediate 56-66 11130/2000 1.0 U 0.25 U 320 1 19.2 6.7 77
W-5I South Plume lntennedlate 56-66 4123/2001 1.0 U 0.25 U 130 19.8 6.6 329
W-6s Dup Side Gradient Shallow 22-37 10/1211994
W-6s Side Gradient ShaUow 22-37 10/1211994
W-6s Dup Side Gradient Shanow 22-37 4/3011998 188 19.4 5.1
W-6s Side Gradient Shallow 22-37 4130/1998 188 19.4 5.1
W-6s Side Gradient Shallow 22-37 5/1512001 1.3 1.7 290 20.5 5.3 182
W-7s North Plume Shallow 15-30 10/1211994
W-7s North Plume Shallow 15-30 5116/2001
W-6s Side Gradient Shallow 20-35 1011111994
W-8s Side Gradient Shallow 20-35 1/1011995
W-8s Side Gradient Shallow 20-35 1211211995
W-8s Side Gradient Shallow 20-35 511512001 1.0 U 0.49 10 18.3 5.3 206
W-Si Side Gradient Intermediate 83-93 10/1111994
W-Si Side Gradient Intermediate 83-93 1111/1995
W-Si Side Gradient Intermediate 83-93 12114/1995
W-8i Side Gradient Intermediate 83-93 12116/1998 3.6 u 390 17 8.5 139
W-8I Side Gradient Intermediate 83-93 511512001 2.4 0.25 U 420 18.3 10.6 -14
P:\Profl 18895\18895 016\apr-01-tAOl Page 43 of 51
--1-: ----1!!!I -=· --liiiil iiiil ---.. a.iii liiiJ
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well lnfonnatlon Nutrients Geochemical Parameters
WeU
Screened Sampling Field Field Monitoring Well Zone Well Type Depth Date TDC Phosphate TKN Ammonium Nitrate/Nitrite Conductivity Temperature Field pH Field Eh
(fl) (mg,t) (mg,t) (mg,t) (mg,t) (mg,t) (µmhos) rCJ (uniHess) (mv)
FCX OU3 Groundwater Performance Standards eer the RA Work Plan:
W-9s Treatment ShaDow 34-49 10/11/1994
W-9s Cup Treatment ShaUow 34-49 51511998 1.0 0.050 u u 1.3 37 20.1 6.4 230
W-9s Treatment Shallow 34-49 51511998 u 0.050 u u 1.3 37 20.1 6.4 230
W-9s Treatment ShaUow 34-49 12/1711998 u 1.8
W-9s Treatment Shallow 34-49 511512001 1.0 U 2.6 30 18.7 5.1 332
W-9i Treatment Intermediate 81-91 1011111994
W-91 Treatment lntennedlate 81-91 5115/2001 1.0 U 2.3 70 18.7 8.3 -63
W-10s South Plume Shallow · 20-35 101711994
W-10s South Plume ShaUow 20-35 111011995
W-10s South Plume Shaflow 20-35 12/14/1995
W-10s South Plume Shallow 20-35 5/16/2001 1.0 U 0.29 20 1U 6.0 307
W-10i Side Gradient Intermediate 59-69 10/711994
W-10i Side Gradient Intermediate 59-69 1111/1995
W-10i Side Gradient Intermediate 59-69 12/12/1995
W-10i Side Gradient Intermediate 59-69 4130/1998 u 0.022 u u u 87.7 18.2 7.2 310
W-10i Side Gradient Intermediate 59-69 12/19/1998 u 0.31 80 17 7.7 350
W-10i Side Gradient Intermediate 59-69 618/1999 u u 100 16 7.5 124
w.10i Side Gradient Intermediate 59-69 12/911999 1.2 u 110 15.9 7.0 205
W•10i Side Gradient Intermediate 59-69 61612000 1.4 0.31 110 17.4 7.1 28
W-10i □up (field) Side Gradient Intermediate 59-69 1112812000 195
W•10i Side Gradient Intermediate 59-69 1112812000 1.0 U 0.41 90 17.6 7.4 141
W•10i South Plume lntennediate 59-69 4/2412001 1.0 U 0.31 120 17.0 7.3 359
W-11s Dup Side Gradient Shallow 25-40 101511994
W-11s Side Gradient ShaHow 25-40 101511994
W-11s Side Gradient Shanow 25-40 111011995
W-11s Side Gradient Shallow 25-40 4/30/1998 68 19.1 5.1 302
W•11s Side Gradient Shallow 25-40 5117/2001 1.0 U 2.6
W•12s Background Shallow 18-33 10/411994
w.12s Oup Background Shallow 18-33 111011995
W-12s Background Shallow 18-33 1/1011995
W-12s Background Shallow 18-33 4130/1998 u u u u 1.7 43.7 19.3 4.9 305
W-12s Background Shanow 18-33 12/8/1999
P:lr'rat,1 6695\\ 68!l5.016\a.pr.01 •IA01 Page 44 of 51
I!!!! == Ii=! -iiiiiil liliial· ! liiliiiiil ... -·-.... ,al ----iiiiii1 'iiliil iiiiil 1liii]
Table A-1, Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Nutrients Geochemical Parameters
Well
Screened Sampling Field Field Monitoring Wen Zone Well Type Depth Date TDC Phosphate TKN Ammonium Nitrate/Nitrite Conductivity Temperature Field pH Field Eh
(ft) (m9/L) (mgll) (mgll) (mgll) (mgll) (µmhos) (C) (unit!ess) (mv)
FCX OUJ Groundwater Performance standards eer the RA Work Plan:
W-12i Dup Background Intermediate 73-83 10/411994
W-12i Background lntennediate 73-83 10/4/1994
W-12i Background Intermediate 73-83 1111/1995
W-12i Background Intermediate 73-83 4130/1998 1.3 0,027 u u 2.7 281 20 6.0 284'
W-12i Background Intermediate 73-83 12116/1998 u 3,1 200 17 5.0 22
W-12i Background lntem1ediate 73-83 61711999 u 3.3 200 20 6,0 -168
W-12i Background Intermediate 73-83 12/9/1999 1,1 2.9 260 15.8 5.7 -90
W-12i Background Intermediate 73-83 61712000 28' 0.25 U 280 18,8 6.0 -124
W-121 Background Intermediate 73-83 11/29/2000 1.0 u 4.8 480' 17 5.7 -105
W-12i Background lntennedlate 73-83 4125/2001 1.0 U 4,8 260 17,5 5,8 -34
W-13i Dup Side Gradient Intermediate 70-80 10/311994
W-13i Side Gradient Intermediate 70-80 10/311994
W-13i Side Gradient Intermediate 70-80 5/2212001 3,5 0.79 1,580 22,1 11,9 -262
W-14s Dup Side Gradient ShaDow 37-52 9/29/1994
W-14s Side Gradient ShaDow 37-52 9/29/1994
W-14s Side Gradient Shallow 37-52 1110/1995
W-14s Side Gradient Shallow 37-52 5118/2001 2.9 0,25 U 170 18.4 6,3 -13
W-14i Side Gradient Intermediate 105-115 9/3011994
W-14i Side Gradient Intermediate 105-115 1110/1995
W-14i Side Gradient Intermediate 105-115 5123/2001 7,5 025 U 140 19,6 8,6 .95
W-15s Side Gradient ShaUow 30-45 9129/1994
W-15s Side Gradient Shallow 30-45 1110/1995
W-15s Side Gradient Shallow 30-45 5118/2001 1,0 U 0,25 U 20 202 5,6
W-15iDup Side Gradient Intermediate 71-81 9/3011994
W-15i Side Gradient Intermediate 71-81 9130/1994
W-15i Side Gradient Intermediate 71-81 1110/1995
W-15i Side Gradient Intermediate 71-81 8/2612001 1,0 025 U 120 19.8 8.9 -20
W-15i Dup Side Gradient Intermediate 71-81 6126/2001 1.0 U 025 U
W-16s Treatment Shallow 35-50 10/11/1994
W-16s Treatment Shanow 35-50 51511998 75 20 5.4 192
W-16s Treatment ShaDow 35-50 1211711998 75 20 5.4 323
W:,16s Treabnent Shallow 35-50 5/16/2001 1,0 U 1.2 80 20,4 5,0 286
W-16i Treatment Intermediate 77-87 10/11/1994
W-16i Treatment Intermediate 77-87 51511998 250 22 7,3 180
W-16l Treatment Intermediate 77-87 1211711998
W-16i Treatment Intermediate 77-87 5/16/2001 1.0 U 200 19.8 7,4 228
P:\Proj\ 18895110095. O16\apr-01-IAO1 Page 45 of 51
I!!!! =a ----! ,lii'i! -, .. .. IIIIJ.i ,_ ---liilill !iial iiil iiiJ
TableA-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Nutrients Geochemical Parameters
Well
SCreened Sampling Field Field
Monltoring Well Zone wen Type Depth Date TOG Phosphate TKN Ammonium Nitrate/Nitrite Conductivity Temperature Field pH Field Eh
(ft) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (µmhos) (C) (unitless) (mv)
FCX OU3 Groundwater Perfonnance Standards eer the RA Wcirk Plan:
W-17s Source Shallow 29.5-44.5 10/11/1994
W-17s Source Shallow 29.5-44.5 1/10/1995
W-17s Soun:e Shallow 29.5-44.5 5/5/1998 1.9 0.041 u u 24 320 27 4.9 230
W-17s Source Shallow 29.5-44.5 12/18/1998 u 27 300 23 4.4 252
W-17sd Source Shallow 29.5-44.5 12/9/1999 490 21.1 4.5
W-17s Source Shallow 29.5-44.5 6/6/2000
W-17s Source Shallow 29.5-44.5 11/28/2000 0.037 1 500 20.9 4.6
W•17s Source Shallow 29.5-44.5 4/24/2001 26 360 21.7 4.3
W-18s Background Shallow 22.5-37.5 12/11/1995
W-18s Background Shallow 22.5-37.5 4/30/1998 . u 0.088 u u 0.43 20 18.4 5.2 498
W-18s Background Shallow 22.5-37.5 12/1611998 u u
W-18s Background Shallow 22.5-37.5 6/8/1999 u 0.47 20 15 6.1 351
W-18s Background Shallow 22.5-37.5 12/6/1999 u 0.32 20 14.7 5.6 225
W-18s Background Shallow 22.5-37.5 6/612000 1.0 U 0.40 20 18.6 5.1 108
W-18s Background Shallow 22.5-37.5 11/28/2000 1.0 U 0.38 10 17.8 5.4 409
W-18s Background Shallow 22.5-37.5 4/23/2001 1.0 U 0.46 18.9 5.5 290
W-19s North Plume Shallow 17-27 12/14/1995
W-19s North Plume Shallow 17-27 5/5/1998 u 0.031 u u 0.45 269 17.8 6.3 196
W-19s North Plume ShaUow 17-27 12/17/1998 1.3
W-19s North Plume Shallow 17-27 6/10/1999 1.4 0.83 230 16 5.5 228
W-19s North Plume ShaDow 17-27 12/7/1999 u 1.2 270 16.6 5.4 326
W-19s North Plume ShaUow 17-27 616/2000 1.0 U 0.94 270 17.7 5.6 129
W-19s North Plume Shallow 17-27 11/28/2000 1.0 U 1.7 230 17.2 5.5 335
W-19s Dup North Plume Shanow 17-27 11/28/2000
350
W-19s North Plume Shallow 17-27 4/24/2001 1.0 U 1.8 240 17.7 5.5 373
W-20s North Plume Shallow 4-14 12/12/1995
W-20s Dup North Plume ShaUow 4-14 4/29/1998 u 0.069 u u u
W-20s North Plume Shallow 4-14 4/29/1998 u 0.045 u u u 70.4 14.8 7.4 131
W-20s North Plume Shallow 4-14 12/20/1998 u 0.21 55 15 6.9 252
W-20s North Plume Shallow 4-14 6/8/1999 u u 60 16 6.1 243
W-20s Dup North Plume Shallow 4-14 12/7/1999 u u
W-20s North Plume ShaDow 4-14 12/7/1999 u 0.37 80 13.5 6.6 321
W-20s Dup North Plume Shallow 4-14 6/8/2000 1.0 U 0.25 U 80 14.5 6.7 273
W-20s North Plume ShaUow 4-14 6/8/2000 1.0 U 0.25 U 80 14.5 6.7 273
W-20s North Plume Shallow 4-14 11/29/2000 1.0 U 0.59 80 14.4 6.8 192
W-20& North Plume Shallow 4-14 4/24/2001 1.0 U 0.26 100 15.0 6.7 250
P:\Proj\ 18895\18895.016\apr-0 \.tA01
Page 46 of 51
-· ---,,_, -.. --; ·--..-i •-' ·-✓---·lllili --liii1 iiiil
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Nutrients Geochemical Parameters
Well
Screened Sampling Field Field
Monitoring WeD Zone WcllType Depth Date TOG Phosphate TKN Ammonium Nitrate/Nitrite Conductivity Temperature Field pH Field Eh
(ft) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (µmhos) tCJ (unittess) (mv)
FCX OUJ Groundwater Pertonnance Standards eer the RA Work Plan:
W-20i North Plume Intermediate 84-94 3125/1996
W-20i North Plume Intermediate 84-94 4/29/1998 u u u u 0.32 172 15.2 8,6 ·328
W-20i North Plume Intermediate 84-94 1211511998 u 0.067 190 15 7.6 199
W-20i North Plume Intermediate 84-94 112611999
W-20i North Plume Intermediate 84-94 1/27/1999
W-20i North Plume Intermediate 84-94 61811999 u 0.48 210 16 7.3 227
W-20i North Plume Intermediate 84-94 121711999 u 0.71 250 13.8 7.4 -199
W-20i North Plume Intermediate 84-94 6/812000 1.6 0.25 U 250 15.4 7.6 163
W-20i Dup (field) North Plume Intermediate 84-94 11/3012000 -36
W-20i North Plume Intermediate 84-94 1113012000 u 0.74 490 I 14.3 7.2 -49
W-201 North Plume lntennediate 84-94 4/2412001 1.0 U 0,69 240 15.6 7.2 33
W-20d' North Plume Deep 152-166 9/2311998
W-20d North Plume Deep 152-166 12117/1998 4.6 -237
W-20d North Plume Deep 152-166 61911999 5.7 u 1,700 16 11.9 136
W-20d North Plume Deep 152-166 12/911999 4.8 u 1,750 14 11.7 -350
W-20d North Plume Deep 152-166 6/912000 1.8 0.25 U 760 16 11.9 -335
W-20d North Plume Deep 152-166 11129/2000 2.3 0.25 U 1,350 16.1 11.8 -852 1
W•20d North Plume Deep 152-166 4/2512001 3,3 0.25 U 270 I 16.2 11.6 .349
W-21s North Plume Shanow 10-20 1211211995
W-21s North Plume Shallow 10-20 5117/2001 1.1 0.25 U 20 16,8 5.2
W-22s South Plume Shallow 20-35 1211411995
W-22s South Plume Shallow 20-35 51111998 u u u u 9.5 108 18.9 4.7 332
W-22s South Plume Shallow 20-35 1212011998 u 9 85 18 4.7 230
W-22sd South Plume Shallow 20-35 121811999 1.0 5.9 120 16.4 4.8
W-22s South Plume Shallow 20-35 61712000 1.1 6.9 120 18.3 4.5
W-22i South Plume Intermediate 57-67 312511996
W-22i South Plume Intermediate 57-67 5/1/1998 1.0 u u u 4.2 176 19.1 6.2 222
W-2~ South Plume Intermediate 57-67 12/2011998 . 1.3 4 140 19 6.0 136
W-22i South Plume Intermediate 57-67 6/911999 2.4 2.9 170 16 6.3 145
W-22i Dup South Ph.lme Intermediate 57-67 1218/1999 1.0 3.3
W-22i South Plume Intermediate 57-67 1218/1999 u 3.2 220 6.2 94
W-23s Dup South Plume Shanow 25-40 1129/1996
W-23s South Plume Shallow 25-40 1/2911996
W-23s South Plume Shallow 25-40 5123/2001 1.0 U 0.25 U 100 16,6 5.2 332
P:\Prt1j"\18895\18895.016\apr-01-IA01 Page 47 of 51
-· -111111 ._, ·------,__. ... <a ---,iiiil -,iiii) ,iiiil
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Nutrients Geochemical Parameters
Well
SCreened . Sampling Field Field
Monitoring wen Zone Well Type Depth Date TOG Phosphate TKN Ammonium Nitrate/Nitrite Conductivity Temperature Field pH Field Eh
(ft) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (µmhos) ("C) (unitless) (mv)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan:
W-24s South Plume ShaDow 5-20 12/13/1995
W-24s South Plume Shallow 5-20 5/1/1998 1.3 0.12 u u 0.25 185 20.5 5.7 230
W-24s Dup South Plume ShaUow 5-20 1/27/1999
W-24s South Plume Shallow 5-20 1/27/1999 1.2 0.60 240
W-24s South Plume Shallow 5-20 6/9/1999 1.4 u 90 15.5 5.9 204
W-24s South Plume Shanow 5-10 12/8/1999 u 0.55 . 130 13 5.8 237
W-24s South Plume Shallow 5-10 611/2000 1.5 0.25 U 210 16.9 5.5 209
W-24s South Plume Shallow 5-20 11/29/2000 1.0 U 0.75 80 15.6 5.7 281
W-24s South Plume Shallow 5-20 4/2512001 1.0 U 1.4 100 15.4 5.8
W-25s Dup Side Gradient Shallow 10-25 12/12/1995
W-25s Side Gradient Shallow 10-25 · 12/12/1995
W-25s Side Gradient Sttallow 10-25 5117/2001 1.0 U 0.88 70 18.2 5.0 276
W-26i Dup Side Gradient Intermediate 103-118 12/14/1995
W-26i Side Gradient lntennediate 103-118 12/14/1995
W-26i Side Gradient Intermediate 103-118 12/16/1998 u 2 240 17 7.1 237
W•26I Side Gradient lntennediate 103-118 5117/2001 1.0 U 1.9 210 17.2 8.2 56
W-261 Dup Side Gradient lntennedlate 103-118 5117/2001 1.0 U 2.0 210 17.2 8.2 56
W-27s south Plume Shallow 25-40 12/12/1995
W-27s South Plume Shallow 25-40 5122/2001 1.0 U 0.99 100 18.4 5.1 385
W-28i Dup North Plume Intermediate 73-88 12/19/1995
W-28i North Plume Intermediate 73-88 12/19/1995
W-28i North Plume Intermediate 73-88 5/5/1998 6.0 0.13 u u 0.14 604 19.8 9.8 158
W-28i North Plume Intermediate 73-88 12/18/1998 2.5 0.52 220 18 10.0
W-28i North Plume Intermediate 73-88 6/8/1999 3.6 u 390 19 10.5 280
W-28i North Plume Intermediate 73-88 1217/1999 2.5 0.44 270 15.9 9.9 41
W-28i North Plume Intermediate 73-88 6/612000 2.3 0.32 380 21.9 10.6 120
W-28i North Plume Intermediate 73-88 11/29/2000 2.5 0.25 U 310 14.4 10.7 49
W-28i North Plume Intermediate 73-88 4/2512001 1.7 0.29 440 20.4 11.0 175
W-28d North Plume Deep 234-249 5117/2001 11 0.25 U 400 20.0 10.5 .754
P:\ProJ"\18B95\18895.016\apr-0 1-IA01 Page 48 of 51
.. -11111; ., ~:' ,.= ~ -liiiiill' -.. _--,. -liiil --..i -.911
Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX-Statesville Superfund Site OU3
Well Information Nutrients Geochemical Parameters
wen
Screened Sampling Field Field Monitortng WeU Zone wen Type Oeplh Date TOG Phosphate TKN Ammonium Nitrate/Nitrite Conductivity T emperab.Jre Field pH Field Eh
(ft) (mg/L) (mg/I.) (mg/I.) (mg/I.) (mg/I.) (µmhos) rCJ (uniUess) (mv)
FCX OUJ Groundwater Performance Standards eer the RA Work Plan:
W-19i Dup South Plume Intermediate 88-98 11/1311995
W-29i South Plume Intermediate 88-98 11/13/1995
W-29i South Plume Intermediate 88-98 51111998 u u u u 8.5 167 17.1 5.3 135
W-19i Dup South Plume Intermediate 88-98 11/1011998 1.7 7.4 110 17 4.9 147
W-29i South Plume Intermediate 88-98 11/10/1998 u 7.5 110 17 4.9 139
W-19i Dup South Plume Intermediate 88-98 61911999 u 5.7 110 16 5.6 118
W-19i South Plume Intermediate 88-98 61911999 1.4 5.8 110 16 5.6 118
W-19i Dup South Plume Intermediate 88-98 11/911999 u 6.8
W-19i South Plume Intermediate 88-98 11/911999 u 6.0 180 15.4 5.8 331
W-29i Dup South Plume Intermediate 88-98 61711000 1.0 U .7.1 180 18.6 5.4 119
W-29i South Plume Intermediate 88-98 6/711000 1.0 U 6.8 180 18.6 5.4 119
W-29i South Plume Intermediate 88-98 1111911000 1.0 U 8.4 150 16 5.5 163
w.29; Dup (W-GB) South Plume Intermediate 88-98 4114/2001 1.0 U 5.7 120 18.0 5.6 167
W-29i South Plume lntennediate 88-98 411411001 1.0 U 5.6 120 18.0 5.6 167 l.
W-30i North Plume Intermediate 37.5-47.5 11/1911995
W-30i North Plume Intermediate 37.5-47.5 4130/1998 14 0.078 u 1.1 u 409 18 9.3 -130
W-30i North Plume Intermediate 37.5-47.5 11/1911998 5.4 u 195 16 8.4 161
W-30i North Plume Intermediate 37.5-47.5 1116/1999
W-30i North Plume Intermediate 37.5-47.5 111711999
W-30i North Plume Intermediate 37.5-47.5 61911999 4:8 u 370 10 8.4 -145
W-30i North Ph.lme Intermediate 37.5-47.5 11/811999 3.7 u 390 14.6 9.3 -353
W-30i North Plume Intermediate 37.5-47.5 61711000 3.4 0.15 U 390 17.4 9.9 -315
W-30i North Plume Intermediate 37.5-47.5 1111911000 3.1 0.5 U 550 16.5 8.5 -135
W-301 North Plume lntennedlate 37.5-47.5 4114/2001 2.8 025 U 410 15.7 10.3 1 .335
W-31s North Plume Shallow 5-15 111111998
W-31s Dup North Phlme Shanow 5-15 · 1111911998 u 0.19 u u 115 18 6.9 -63
W-31s North Plume Shallow 5-15 1111911998 u 0.16 u u 115 18 6.9 -68
W-31s Dup North Plume Shallow 5-15 11/1611998
W-31s North Ph.lme Shallow 5-15 11/1611998 u 0.50 130 18 6.7 141
W-31s d North Plume Shallow 5-15 61711999 u u 110 16 7.6 157
W-31s d North Plume Shallow 5-15 6110/1999 1.4 0.89 110 14.5 6.9 341
W-31s North Plume ShaUow 5-15 11/611999 u 0.95 110 16.9 6.4 188
W-31s Dup North Plume Shallow 5-15 11/1611999 u u 0.51 130 18 6.7
W-31s North Plume ShaDow 5-15 61511000 1.0 U 1.7 100 16.1 6.1 101
W-31s North Plume Shallow 5-15 11/1711000 1.0 U 1.9 80 17.8 6.4 313
W-31s North Plume Shallow 5-15 411311001 1.0 U 1.8 40 15.2 6.4 437
P:\Pr'Oj\18895\18895.016\apr-O 1-IA0I Page 49 of 51
--. .-i,\ (ajg' ----liiiiil -'
r:il!it -. liiiiil l!iill ·; liiiii!l -<N iiiil -Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation a
FCX-Statesville Superfund Site OU3
Well Information Nutrients Geochemical Parameters
WeU
Screened Sampling Field Field
Monitoring Well Zone Well Type Depth Date TOG Phosphate TKN Ammonium Nitrate/Nitrite Cooductivily Temperature Field pH Field Eh
(ft) (mg/I.) (mg/I.) (mg/I.) (mg/I.) (mg/I.) (µmhos) (C) (un~ess) (mv)
FCX OU3 Groundwater Perfonnance Standards eer the RA Work Plan:
W-31i NOfth Plume Intermediate 34-44 11/1/1998
W-31i North Plume Intermediate 34-44 11/19/1998 u u 0.50 85 17 7.0 -118
W-31i North Plume Intermediate 34--44 12/1611998 u 0.60 80 16 7.0 142
W-31i North Plume Intermediate 34-44 617/1999 u 0.93 210 I 15 7.7 119
W-31i North Plume Intermediate 34-44 12/6/1999 1.9 0.56 120 15.6 6.8 107
W-31i North Plume Intermediate 34-44 6/5/2000 1.3 0.45 100 16.9 7.1 126
W-31i Dup (field) North Plume Intermediate 34-44 11/27/2000 232
W-31i North Plume Intermediate 34-44 11127/2000 1.2 0.49 100 15.4 7.4 218
W-31I North Plume Intermediate 34-44 4/23/2001 1.0 U 0.64 50 17.1 7.0 358
W-32i South Plume Intermediate 112-132 11/111998
W-32i South Plume Intermediate 112-132 11/19/1998 u u u u 0.59 160 17 8.8 -102
W-32i South Plume Intermediate 112-132 12/18/1998 1.3 0.74 120 16 8.0 250
W-32i South Plume Intermediate 112-132 619/1999 2.4 0.53 180 16 8.4 214
W-32i South Plume Intermediate 112-132 12/711999 1.8 0.36 150 14.2 8.0 109
W-32i South Plume Intermediate 112-132 6/812000 2.0 0.32 140 16.1 8.6 120
W-32i Dup {field) South Plume Intermediate 112-132 11/28/2000 -20
W-32i South Plume Intermediate 112-132 11/28/2000 1.0 U 0.6 310 1 15 8.8 -17
W-32I South Plume Intermediate 112-132 4/26/2001 1.0 U 0.42 150 14.5 8.6 ,104
P;\P~18895\ 18895.0161a.,,--01.IAQ\ Page 50 of 51
~
P:\Proj\ 18895\1 B895.01 6\apr-01-IA01
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Table A-1. Data from Monitoring Wells Used for Evaluation of Monitored Natural Attenuation•
FCX.Statesville Superfund Site OU3
TABLE FOOT NOTES:
a Data qualifiers are as follows:
·-· indicates that there was not an analysis or measurement performed.
B indicates the analyte was detected in a blank sample.
D indicates that the result is from a diluted sample.
E indicates that the result exceeded the upper limit of the linear range of the calibration cuive.
J indicates the result is estimated.
N indicates the result is estimated.
NR indicates the result is not reportable because it was determined as unusable by the data validator.
U indicates that the result_was less than one-fifth of the contract-required quantitation limit (CRQL); the reporting limit precedes the "U" qualifier.
bMonitoring weU W-5s was sampled but not purged; the sample was taken on June 8, 1999, and the NAPS were collected on June 9, 1999.
cvoc data forW-20d from September 1998 are DQL Ill.
d Monitoring wen W-31s was resainpled oo 6/10/99 using a slower purge rate.
• Additional aluminum data can be found in Table 3-4 of the Pre-Design Investigation Report
1 This result appears to be suspect relative to what is expected. Value should be considered estimated.
General Notes:
8evated DOs may be due to pumping the well dry and then collecting water that has been aerated.
Monitoring well W-12s was dry during December 1998, June 1999, June 2000, November 2000, and April 2001 sampling events.
Monitoring weUW-22s was dry during the June 1999 sampling; W-17s did not have enough water to purge or sample durtng the June 1999 samp~ng.
voe data from December 1999 sampling has been rounded to two (2) significant figures.
Monitoring wells W-22s and W-22i were not sampled during the November 2000 and April 2001 sampling events due to inaccessibility.
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