HomeMy WebLinkAboutCamden Grandview_GW_Monitoring_ReportGroundwater Monitoring Report
American Dry Cleaning Company
DSCA ID: 60-0002
Charlotte, Mecklenburg County
North Carolina Dry-Cleaning
Solvent Cleanup Act Program
H&H Project No. DS0-35C
June 2, 2011
2923 South Tryon Street
Suite 100
Charlotte, NC 28203
704-586-0007
3334 Hillsborough Street
Raleigh, NC 27607
919-847-4241
#C-1269 Engineering
#C-245 Geology
DSCA ID No.:
Submittal Date:
Reporting Period:to
Type of Report:One-Time Event Quaterly
Semi-Annual Annual
June 2, 2011
60-0002
May-10 Mar-11
Groundwater Monitoring Report Forms
for
North Carolina Dry-Cleaning Solvent Cleanup Act Program
Prepared By:
Facility Name:American Dry Cleaning Company
309 East Morehead Street, Charlotte, Mecklenburg County
2923 South Tryon Street, Suite 100, Charlotte, North Carolina 28203
Hart & Hickman, PC
Table of Contents
DSCA ID No.: 60-0002
Form/Att
. No.
Check box
if included
Form 1 Report Summary
Form 2 Quality Assurance/Quality Control Procedures
Form 3 Results, Conclusions and Recommendations
Att. 1
Att. 2
Att. 3
Att. 4
Att. 5
Att. 6
Att. 7
Att. 8
Att. 9
GWMR TOC
Description
Grooundwater Monitoring Report Attachments
Groundwater Monitoring Report Forms
Site Location Map
Laboratory Analytical Reports
Plume Stability Graph
Groundwater PCE Isoconcentration Map
Groundwater PCE Concentration Map
Site Map
Boring Log and Well Construction Record (TDMW-1)
Disposal of IDW receipts from receiving facilities, or any required harzardous
Groundwater Gradient Map
Report Summary
DSCA ID No.: 60-0002
Dates samples were collected:
Number of existing monitoring wells:
List the sampled monitoring wells:
List the sampled water supply wells:
List surface water samples collected:
Date analyses were performed:
Were any holding times exceeded?
Dates monitoring/supply wells were gauged:
disposal?
Average depth to groundwater:
Groundwater flow direction:
Was the static groundwater level above the top of the well screen in any wells?
If Yes, indicate which wells:
Is the aquifer:
Were any existing monitoring wells damaged?
If Yes, indicate which wells:
Has the groundwater plume been defined?
Any ongoing assessment activities?
If Yes, provide details in the space below:
Any ongoing remediation activites?
If Yes, provide details in the space below:
Any significant changes in the subsurface conditions?
If Yes, provide details in the space below:
Previously, water levels were measured for TW-1 through TW-6 on 11/19/2008.
No groundwater elevations were obtained.
East/Northeast
TDMW-1
No supply wells sampled
No surface water samples collected during this period
25.53 (Based on 11/19/2008 data)
5/27/10, 8/26/10, 11/22/10, 3/14/11 and 3/16/11
None
Temporary wells TW-14, TW-15, TW-16, TW-17, and TDMW-1
6/4/10, 9/4/10, 12/3/10, 3/17/11 and 3/19/11
Does investigation derived waste (IDW) generated during these activities still remain at the site pending
GWMR Form 1
Yes No
Yes No
Confined Unconfined Perched
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Quality Assurance/Quality Control Procedures
DSCA ID No.: 60-0002
Describe the specific sampling technicque employed during the collection of all ground water samples.
Groundwater samples were analyzed for volatile organic compounds (VOCs) by EPA Method 8260B. The
maximum holding time for VOC analysis is 14 days from the sample collection date (when the sample is
preserved with HCL). All samples were preserved with HCL and were analyzed within 14 days of collection.
There were no discrepancies noted on the laboratory analytical reports for the sample analyses performed
during this period.
GWMR Form 2
Describe the standard quality assurance/quality control (QA/QC) procedures which are practiced in order to
ensure that the samples are representative of actual conditions and that analytical results are valid.
Describe the EPA approved methods used to extract and analyze the samples submitted the laboratory.
Reference the maximum holding time for each type of analysis performed.
New sample tubing (both polyethylene and silicone) was used at each temporary well. New sterile nitrile
gloves were used for sampling of each well. Samples were collected directly into laboratory-prepared sample
containers, labeled with the site and sample identifications, time, date, sampler's initials, and analysis method.
Samples were secured in protective wrap or bags before being covered with ice and cooled to 4 degrees
Celcius in a laboratory-supplied sample cooler. A sample chain-of-custody was completed and placed in the
sample cooler. The cooler was delivered by field personnel or picked up by a courier for delivery to a NC
certified laboratory. The laboratory ran standard Type II QC measures on each set of samples.
Installation of temporary monitoring wells (TW-14, TW-15, TW-16, and TW-17) was completed using a 4-
foot, stainless steel, screen-point sampler using a direct-push technology (DPT) rig. A check-valve attached to
dedicated polyethylene tubing was used to draw groundwater from the screened-interval into the tubing.
Samples were collected from the outflow of the polyethylene tubing.
Standard USEPA-approved low stress (low-flow) purge techniques were used to sample the deep temporary
monitoring well (TDMW-1). Polyethylene tubing was installed to the middle of the well screen, secured at the
top of the well, and connected to a short piece of silicone tubing at the peristaltic pump rotor. Groundwater
was drawn through the tubing by the peristaltic pump at a rate that prevented drawdown of the water column in
the well (approximately 100 mL/min). Field measurements of temperature, pH, conductivity, and oxidation-
reduction potential (ORP) were collected during the low-flow purging and the final readings are included in
Table 9. Readings of each parameter were collected at 3 to 5 minute intervals. After field readings stabilized,
samples were collected from the outflow tubing of the peristaltic pump.
Results, Conclusions and Recommendations
DSCA ID No.:
Sampling
Date Sample ID Concentration
[mg/L]
Sampling
Date Sample ID Concentration
[mg/L]
3/16/2011 TDMW-1 0.0053 11/17/2008 TW-2 0.014
NA NA ND NA NA ND
NA NA ND NA NA ND
3/16/2011 TDMW-1 0.01 11/17/2008 TW-2 0.012
3/16/2011 TDMW-1 0.00064J 11/17/2008 TW-3 0.0013
NA NA ND 11/18/2008 TW-5 0.00081J
NA NA ND 11/18/2008 TW-5 0.0035
NA NA ND 11/22/2010 TW-15 0.068
NA NA ND 11/22/2010 TW-15 0.0028J
H&H completed quarterly groundwater monitoring events for the American Dry Cleaning Company site to
evaluate PCE concentration trends at the site. Based on the analytical data, PCE concentrations in
groundwater appear to be stable. H&H recommends completing a Tier 1 risk assessment and evaluating
closure options for the site.
Chloroform
Methyl tert-butyl ether
Benzene
Toluene
Acetone
Methyl Ethyl Ketone
Instructions: Discuss any trends or changes noted in analytical results.
Conclusions
Recommendations
Hart & Hickman, PC (H&H) completed quarterly groundwater sampling events for temporary monitoring wells TW-14,
TW-15, TW-16, TW-17, and TDMW-1 (March 2011 sampling event) to evaluate groundwater plume stability at the
site. TW-14 was dry at refusal depth during the May 2010, November 2010, and March 2011 events. During these
events, only PCE has been detected in groundwater above NCAC 2L Standards. PCE was detected in TW-15 and TW-
16 at concentrations above the 2L Standard. A graph depicting the concentration versus time for these two monitoring
wells is provided as Attachment 7. In general, PCE concentrations appear to be stable at the site. PCE was not detected
above the laboratory reporting limit in TW-14 or TW-17. A concentration of PCE was detected in Type III temporary
well TDMW-1 above the 2L Standard during the March 2011 sampling event. The PCE concentration in TDMW-1 was
similar in magnitude to the PCE concentrations detected in nearby shallow wells TW-15 and TW-16.
GWMR Form 3
Results
Maximum Concentration Detected in Groundwater
Chemical
Most Recent Event Detected at Site To-date
Tetrachloroethylene
Trichloroethylene
Vinyl Chloride
ATTACHMENT 1
IDW DOCUMENTS
ATTACHMENT 2
SITE LOCATION MAP
TITLE
PROJECT
REVISION NO. 0
ATTACHMENT NO.2
DATE: 5-20-11
SITE
SITE LOCATION MAP
U.S.G.S. QUADRANGLE MAP
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE EAST, NC 1971
REVISED/ INSPECTED 1988
JOB NO. DS0-35
AMERICAN DRY CLEANING COMPANY
DSCA SITE NO. 60-0002
309 EAST MOREHEAD STREET
CHARLOTTE, MECKLENBURG COUNTY
N
0 2000 4000
APPROXIMATE SCALE IN FEET
ATTACHMENT 3
SITE MAP
ATTACHMENT 4
GROUNDWATER GRADIENT MAP
ATTACHMENT 5
GROUNDWATER PCE CONCENTRATION MAP
ATTACHMENT 6
GROUNDWATER PCE ISOCONCENTRATION MAP
ATTACHMENT 7
PLUME STABILITY GRAPH
0
0.001
0.002
0.003
0.004
0.005
0.006
May-10 Jun-10 Aug-10 Sep-10 Nov-10 Jan-11 Feb-11 Apr-11
PC
E
C
o
n
c
e
n
t
r
a
t
i
o
n
(
m
g
/
L
)
Date
PCE Concentration vs. Time Graph
Temporary Monitoring Wells
TW-15 and TW-16
American Dry Cleaning Company, Charlotte, Mecklenburg CountyDSCA ID: 60-0002
TW-15
TW-16
Note: Non-detect values are graphed as half the laboratory method detection limit.
ATTACHMENT 8
LABORATORY ANALYTICAL REPORTS
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ATTACHMENT 9
BORING LOG AND WELL CONSTRUCTION RECORD (TDMW-1)
Analytical Data Tables
for
North Carolina Dry-Cleaning Solvent Cleanup Act Program
DSCA ID No.:
Submittal Date:
Prepared By:
Facility Name:American Dry Cleaning Company
309 E. Morehead Street, Charlotte, Mecklenburg County
2923 S. Tryon Street, Suite 100, Charlotte, NC 28203
Hart & Hickman, PC
June 2, 2011
60-0002
Table of Contents
DSCA ID No.: 60-0002
Table/
Att. No.
Check box
if included
Table 1 Site Chronology
Table 2 Analytical Data for Soil
Table 3 Monitoring Well Construction Data
Table 4 Groundwater Elevation Data
Table 5 Analytical Data for Groundwater
Table 6 Analytical Data for Surface Water
Table 7 Water Well(s) Survey Data
Table 8 Analytical Data for Water Supply Well(s)
Table 9 Analytical Data for Natural Attenuation Parameters
Att. 1 Site map showing location(s) of soil boring(s).
Att. 2
Att. 3 Soil isoconcentration maps.
Att. 4 Site map showing location(s) of monitoring well(s).
Att. 5
Att. 6 Groundwater gradient map for each sampling event.
Att. 7
PCE concentration map showing the concentration at each sampling point and
isoconcentration map. However, if there are significant plumes for other dry-
cleaning contaminants contaminant concentration maps for each chemical of
ADT TOC
Description
Attachments
Tables
Soil contaminant concentration maps showing the concentration at each sampling
point.
Well completion diagrams and records of construction submitted to state.
Att. 8
Att. 9 Map showing location(s) of surface water sample(s) (if applicable).
Att. 10
Att. 11
Att. 12
Att. 13
Att. 14
Att. 15
Att. 16
Att. 17
Att. 18
Att. 19
Att. 20
Note:
1. All maps must include a bar scale, north arrow, site name, DSCA ID No., and date.
USGS Quad map with plotted water well location(s) within the 1,500 foot and 0.5
mile radii of the site (if applicable).
Signed laboratory analytical reports including chain-of custody and quality
assurance/quality control (QA/QC) documentation (only if not previously
submitted).
Site map showing location(s) of monitoring well(s) for natural attenuation parameter
cleaning contaminants,contaminant concentration maps for each chemical of
concern should be included.
Surface water concentratin map showing the concentration at each sampling point
(if applicable).
Groundwater concentration trend plots.
Table 1: Site Chronology
DSCA ID No.: 60-0002
Chronology of Events
September 1997 LAW Engineering and Environmental Services, Inc. (LAW) submitted report documenting Phase I ESA activities.
July 1998 LAW submitted Report of Geotechnical Investigation documenting investigation activities during which odors indicative of
contamination were observed during soil sampling.
October 1998
LAW submitted Notification of Contamination Discovery, Assessment and Proposed Remedial Action Planreport documenting
additional investigation activities conducted based on the odors observed during the geotechnical investigation. PCE (1.15 mg/kg)
was detected in a soil sample and PCE (0.127 mg/L) was detected in a groundwater sample collected during the activities.
Approximately 350 cubic yards of contaminated soils were excavated from the site during these activities.
July 2009
LAW submitted Report of Soil Remediation Activities documenting additional soil excavation activities and removal of three USTs.
Approximately 1,500 cubic yards of contaminated soils were excavated and removed from the site during these activities. Analysis of
the UST contents indicated unidentified hydrocarbons. The report indicated that there were plans for extensive excavation to 28 feet
below grade for construction of the sub-grade parking garage which currently exists at the property (2008).
September 2008 Site certified into the NCDENR-DSCA Program.
January 2009
Hart & Hickman, PC (H&H) submitted Prioritization Assessment Report (PAR) to DSCA. The PAR documents groundwater
assessment activities and a receptor survey conducted by H&H during November 2008. The site was assigned a priority ranking of
3.2. As part of the assessment activities, six temporary wells (TW-1 through TW-6) were installed and sampled. The well TOCs were
surveyed and groundwater elevations were calculated for each TW location.
H&H submitted an Updated Assessment Report to DSCA documenting groundwater assessment activities conducted by H&H during
Instructions: Brief description of all significant events that have occurred since a problem was
suspected at the facility. Commence with the first date a problem was suspected and continue
through the most recent activity described in the current report.
Date
ADT 1
August 2009
& sub tted a Updated ssess e t epo t to SC docu e t g g ou dwate assess e t act v t es co ducted by & du g
May 2009. As part of the assessment activities, seven temporary wells (TW-7 through TW-13) were installed; however, only TW-11
was sampled. The other wells were dry at refusal depth.
November 2009 -
December 2009
H&H conducted additional assessment activites at the site including the collection of one sub-slab vapor monitoring point (VMP-1)
and two ambient air samples (IAS-1 and BAS-1). On May 12, 2010, H&H submited an Ambient Air and Sub-Slab Vapor Sampling
Results letter to the DSCA Program documenting the assessment activities.
May 2010 - March
2011
H&H completed quarterly groundwater sampling activities in May 2010, August 2010, November 2010, and March 2011. Due to
difficulties in obtaining off-site access for the installation of permanent monitoring wells, four temporary direct push technology
(DPT) monitoring wells (TW-14 through TW-17) were installed and sampled during each quarterly monitoring event. TW-14 was dry
at refusal depth during each sampling event except for August 2010. In March 2011, one Type III temporary monitoring well (TDMW-
1) was installed and sampled to delineate the vertical extent of groundwater impacts at the site. On June 2, 2011, H&H submitted a
Groundwater Monitoring Report to the DSCA Program documenting the May 2010 to March 2011 groundwater sampling events.
ADT 1
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3
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TW
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3
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/
1
7
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0
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1
31
2
21
-
3
1
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TW
-
4
11
/
1
7
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0
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1
40
2
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4
0
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TW
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5
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1
8
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1
20
2
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TW
-
6
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1
9
/
0
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2
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4
8
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TW
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1
1
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2
2
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0
9
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81
8
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1
4
08
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2
6
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1
0
1
28
1
24
-
2
8
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05
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2
7
/
1
0
1
35
1
31
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3
5
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08
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2
6
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1
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1
35
1
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3
5
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11
/
2
2
/
1
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1
35
1
31
-
3
5
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03
/
1
4
/
1
1
1
30
1
26
-
3
0
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05
/
2
7
/
1
0
1
22
1
18
-
2
2
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08
/
2
6
/
1
0
1
22
1
18
-
2
2
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11
/
2
2
/
1
0
1
22
1
18
-
2
2
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03
/
1
4
/
1
1
1
22
1
18
-
2
2
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05
/
2
7
/
1
0
1
17
1
13
-
1
7
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TW
-
1
5
TW
-
1
6
ADT 3
08
/
2
6
/
1
0
1
20
1
16
-
2
0
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11
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2
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1
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03
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Corrected* Groundwater Elevation [feet]
TW
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1
11
/
1
9
/
0
8
82
.
2
1
15
.
8
3
66
.
3
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1
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4
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TW
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5
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1
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.
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1
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5
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.
1
3
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.
4
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No
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s
:
1.
T
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2.
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5
NC
2
L
S
t
a
n
d
a
r
d
No
t
e
s
:
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l
d
v
a
l
u
e
e
x
c
e
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d
s
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C
2
L
S
t
a
n
d
a
r
d
(
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a
n
u
a
r
y
2
0
1
0
)
.
NA
d
e
n
o
t
e
s
N
o
t
A
n
a
l
y
z
e
d
;
N
E
d
e
n
o
t
e
s
N
o
t
E
s
t
a
b
l
i
s
h
e
d
TW
-
1
6
TW
-
1
7
ADT 5
Ta
b
l
e
5
(
1
)
:
A
n
a
l
y
t
i
c
a
l
D
a
t
a
f
o
r
G
r
o
u
n
d
w
a
t
e
r
(
U
s
e
r
S
p
e
c
i
f
i
e
d
C
h
e
m
i
c
a
l
s
)
DS
C
A
I
D
N
o
.
:
6
0
-
0
0
0
2
A
c
e
t
o
n
e
M
e
t
h
y
l
E
t
h
y
l
K
e
t
o
n
e
TW
-
1
11
/
1
7
/
0
8
0
.
0
1
1
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.
0
0
5
TW
-
2
11
/
1
7
/
0
8
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0
1
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.
0
0
5
TW
-
3
11
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1
7
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0
8
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0
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0
.
0
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TW
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11
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0
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5
TW
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11
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1
8
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1
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0
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0
0
5
TW
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6
11
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9
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0
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0
5
TW
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1
05
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2
2
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9
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05
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0
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8
0.
0
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2
8
J
S
a
m
p
l
i
n
g
D
a
t
e
(
m
m
/
d
d
/
y
y
)
[m
g
/
L
]
G
r
o
u
n
d
w
a
t
e
r
S
a
m
p
l
i
n
g
P
o
i
n
t
TW
-
1
5
ADT 5 (1 )
11
/
2
2
/
1
0
0 .06
8
0 .00
2
8
J
03
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4
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1
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0
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5
64
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
NC
2
L
S
t
a
n
d
a
r
d
No
t
e
s
:
Bo
l
d
v
a
l
u
e
e
x
c
e
e
d
s
N
C
2
L
S
t
a
n
d
a
r
d
(
J
a
n
u
a
r
y
2
0
1
0
)
.
NA
d
e
n
o
t
e
s
N
o
t
A
n
a
l
y
z
e
d
;
N
E
d
e
n
o
t
e
s
N
o
t
E
s
t
a
b
l
i
s
h
e
d
TW
-
1
6
TW
-
1
7
ADT 5 (1 )
Ta
b
l
e
9
:
A
n
a
l
y
t
i
c
a
l
D
a
t
a
f
o
r
N
a
t
u
r
a
l
A
t
t
e
n
u
a
t
i
o
n
P
a
r
a
m
e
t
e
r
s
DS
C
A
I
D
N
o
.
:
6
0
-
0
0
0
2
S
a
m
p
l
i
n
g
D
a
t
e
(
m
m
/
d
d
/
y
y
)
D
i
s
s
o
l
v
e
d
o
x
y
g
e
n
(
D
O
)
N
i
t
r
a
t
e
S
u
l
f
a
t
e
M
a
j
o
r
C
a
t
i
o
n
s
M
e
t
h
a
n
e
F
e
r
r
o
u
s
I
r
o
n
O
x
i
d
a
t
i
o
n
r
e
d
u
c
t
i
o
n
p
o
t
e
n
t
i
a
l
(
O
R
P
)
A
l
k
a
l
i
n
i
t
y
C
h
l
o
r
i
d
e
(
o
p
t
i
o
n
a
l
)
C
o
n
d
u
c
t
i
v
i
t
y
p
H
T
e
m
p
e
r
a
t
u
r
e
Total organic carbon (TOC)Ethane Ethene
Un
i
t
s
mg
/
L
m
g
/
L
m
g
/
L
m
g
/
L
m
g
/
L
m
g
/
L
mV
mg
/
L
m
g
/
L
μ s/
c
m
2
st
d
u
n
i
t
° C
mg/L
m
g
/
L
m
g
/
L
TD
M
W
-
1
3
/
1
6
/
2
0
1
1
NA
N
A
N
A
N
A
N
A
N
A
23
0
NA
N
A
33
4
.
1
6
.
3
0
1
8
.
2
NA
N
A
N
A
S
a
m
p
l
e
I
D
ADT 9 Page 1 of 1