NC0032719_Correspondence_20160826

RECEIVED/NCDENR/DWF1
AUG 29 2016
PHASE II SITE ASSESSMENT Water Quaiity Regional
Washington Re , ection
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VALHALLA WATER TREATMENT PLANT
1608 VIRGINIA ROAD
EDENTON, CHOWAN COUNTY
NPDES PERMIT NUMBER: NCO032719
GMA Project Number: 158101
Latitude (approx.) = N 36.1439660
Longitude (approx.) = W-76.6560480
PREPARED FOR:
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Mr. Kevin Howard
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Chowan County Manager
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Post Office Box 1030
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Edenton, North Carolina 27932
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PREPARED BY:
Groundwater Management Associates, Inc.
4300 Sapphire Court, Suite 100
Greenville, North Carolina 27834
Telephone: [phone]
Facsimile: [phone]
August 26, 2016

GMA
Groundwater Management Associates, Inc.
August 26, 2016
Mr. Robert Tankard
NCDEQ, DWR, Water Quality Regional Operations
Washington Regional Office
943 Washington Square Mall
Washington, North Carolina 27889
4300 Sapphire Court, Suite 100
Greenville, North Carolina 27834
Telephone: [phone]
www.omo-nc.com
Re: Phase II Site Assessment Report
Valhalla Water Treatment Plant, 1608 Virginia Road, Edenton, Chowan County, North Carolina
NPDES Permit Number: NCO032719
Dear Mr. Tankard:
Enclosed is one copy of a Phase II Site Assessment Report prepared by Groundwater Management
Associates, Inc. on behalf of Chowan County for the above referenced site. The report includes a plan
for completion of the Comprehensive Site Assessment. If you have any questions or comments about
the enclosed report, please do not hesitate to contact me at [phone]. Thank you.
Sincerely,
GMA
Katie T. Hackney, P.G.
Project Hydrogeologist
Enclosure: Phase II Site Assessment Report
cc: Chowan County, Attn: Mr. Kevin Howard, County Manager
Z:\GMA\158101-Chowan County Valhalla WTP\Phase II Site Assessment Rpt\PhaseIISA_CoverLetterNCDEQ.docx
The Groundwater Experts

TABLE OF CONTENTS
1.0
GENERAL INFORMATION................................................................................. 1
1.1 Site Identification...........................................................................................1
1.2 Release Information.......................................................................................1
1.3 Report Certification.........................................................................................2
2.0
RECEPTOR INFORMATION............................................................................... 2
2.1 Water -Supply Wells........................................................................................2
2.2 Public Water Supplies.....................................................................................2
2.3 Surface Water................................................................................................3
2.4 Wellhead Protection Areas...............................................................................3
2.5 Deep Aquifers in the Coastal Plain Physiographic Region....................................3
2.6 Subsurface Structures.....................................................................................3
2.7 Land Use.......................................................................................................3
2.8 Property Owners and Occupants......................................................................3
3.0
SITE GEOLOGY AND HYDROGEOLOGY............................................................ 3
4.0
SAMPLING RESULTS......................................................................................... 4
4.1 Historical Groundwater Sampling.....................................................................4
4.2 Sampling Methods..........................................................................................4
4.3 Current Groundwater Results...........................................................................5
4.4 Current Surface Water Results.........................................................................5
4.5 Water -Supply Well Sampling............................................................................6
4.6 Field Measured Water Quality Parameters.........................................................6
5.0
CONCLUSIONS..................................................................................................6
6.0
RECOMMENDATIONS AND CSA WORK PLAN .................................................. 7
7.0
REFERENCES.....................................................................................................7

LIST OF FIGURES
1. Topographic Map
2. Properties Within 2000 Feet of the Site
3. Site Map
4. Temporary Groundwater and Surface Water Sample Locations
5. Chloride Plume, May 25-26, 2016
6. Total Iron Concentrations, May 25-26, 2016
7. Total Manganese Concentrations, May 25-26, 2016
8. Proposed Permanent Monitoring Well Locations
LIST OF TABLES
1. List of Properties within 2000 feet of the Source Area
2. Construction Date, Depth, Screened Interval, and Water Level Measurement for
Monitoring Wells
3. Summary of Groundwater and Surface Water Sampling Analytical Results
4. Summary of Groundwater and Surface Water Natural Attenuation Parameters
APPENDICIES
I. Copy of NCDWR Letter Dated January 11, 2016
II. Technical Methods and Standard Procedures
III. Copy of Analytical Report for Groundwater and Surface Water Samples

PHASE II SITE ASSESSMENT
1.0 GENERAL INFORMATION
1.1 SITE IDENTIFICATION
Date of Report: August 26, 2016 NPDES Permit Number: NCO032719
Site Name: Valhalla Water Treatment Plant Site Location: 1608 Virginia Road
Nearest City/Town: Edenton ZIP: 27932 County: Chowan
Latitude: N 36.1439660 Longitude: W-76.6560480 Data Point: UST Basin
Property Owner: Chowan County; c/o Mr. Kevin Howard, Chowan County Manager
Address Post Office Box 1030, Edenton, North Carolina 27932
Phone: [phone]
Consultant/Contractor: Groundwater Management Associates, Inc. (GMA)
Address: 4300 Sapphire Court, Suite 100, Greenville, North Carolina 27834
Phone: [phone]
Analytical Laboratory: Prism Laboratories, Inc. State Certification #: 402
Address: 449 Springbrook Road, P.O. Box 240543, Charlotte, North Carolina 28224-0543
Phone: [phone]
1.2. RELEASE INFORMATION
Date Discovered: Elevated chloride concentrations were first discovered and identified in
groundwater beneath the Valhalla Water Treatment Plant (also referred to as the "site," Figure
1) in 2014 by the North Carolina Department of Environmental Quality (NCDEQ), Division of
Water Resources (DWR) when one groundwater sample was collected from a temporary
monitoring well installed by DWR staff to confirm chloride concentrations above the 15A NCAC
2L Groundwater Standards. On November 18, 2014, DWR issued a Notice of Regulatory
Requirements (NORR) directing assessment of the groundwater quality at the compliance
boundary for the water treatment plant (WTP). Analytical results from monitoring wells MW1
though MW3 installed by Chowan County on May 11, 2015 led DWR to issue a Notice of
Violation (NOV) on October 6, 2015 for the Valhalla WTP. The NOV required a site assessment
and preparation of a Corrective Action Plan.
On November 11, 2015, GMA collected groundwater samples from the monitoring -well network.
Analytical results were consistent with previous data from the May 26, 2015, and July 10, 2015
monitoring events. Well MW1 contained the highest concentrations of chloride, iron, and
manganese, and all three concentrations exceeded the 2L groundwater standards.
Concentrations of iron and chloride exceeded the 2L groundwater standards in all three
monitoring well samples. These results were submitted in an Initial Assessment Report (IAS)
dated December 18, 2015 (GMA, 2015) to DWR. Upon review of the ISA prepared by GMA,
DWR issued an ISA Report Review dated January 11, 2016, and directed completion of a
Comprehensive Site Assessment (CSA).

Phase II Site Assessment
Chowan County Valhalla WTP
August 26, 2016 Page 2 of 7
Cause of Release: The release appears to have been caused by groundwater infiltration from
the unlined former borrow pit that is the discharge point for Valhalla WTP effluent.
Source of Release: The source of the release appears to be effluent from the water treatment
processes (including removal of hardness, iron, and manganese from groundwater).
Estimated Quantity of Release: The quantity of the release is unknown.
1.3 REPORT CERTIFICATION
I, Katie T. Hackney, a Licensed Geologist for Groundwater Management Associates, Inc. (GMA),
do certify that the information contained in this report is correct and accurate to the best of my
knowledge. GMA is a professional corporation licensed to practice geology (Greenville and Apex,
NC #C-121) and engineering (Apex, NC #C-0854) in North Carolina.
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2.0 RECEPTOR INFORMATION •��''�,;c TARLES��'���,
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2.1 WATER -SUPPLY WELLS
GMA completed a survey within a radius of 2000 feet around the site to identify property owners
and water -supply wells. GMA conducted interviews, searched for water meters and well houses
on foot and by vehicle, reviewed the locations of Chowan County's production wells, and
gathered information from the County. All developed properties are connected to public water.
Six water --supply wells were identified within 2000 feet of the source area (Figure 2). Two
municipal production wells owned and operated by Chowan County (WSW1 and WSW2, Table 1)
(Figure 2) are located 335 feet northeast and 1600 feet northeast, respectively, of the source
area. Well WSW1 is currently active, 319 feet deep, and is screened from 304 feet to 314 below
land surface (BLS). Well WSW2 is currently offline, is reportedly 124 feet deep, and is screened
from 84 feet to 124 feet BLS. Two inactive non -potable wells are located 600 feet northwest-__
(WSW4) and 1200 feet southwest (WSW6) of the source area, respectively. One inactive non -
potable well, reportedly 12 feet deep (WSW3), was used to dewater during installation of an in-
- _—
ground pool located 1200 feet to the northeast, and one active irrigation well (WSW5) located-
650 feet southwest of the source area is reportedly 40 feet deep and screened from 14.to 40
feet BLS (Figure 2, Table 1).
2.2 PUBLIC WATER SUPPLIES
Potable water is provided throughout the survey area by Chowan County.

Phase II Site Assessment
Chowan County Valhalla WTP
August 26, 2016 Page 3 of 7
2.3 SURFACE WATER
Multiple ponds are located near the source of the release (additional former borrow pit ponds,
Figure 2). A pond owned by Mr. Rodney Harrell is located approximately 550 feet west of the
source area. A pond owned by Mr. C.T. Dixon is located approximately 800 feet west of the
source area. A tributary of Pollock Swamp is located approximately 1300 feet east of the source
area (Figures 1 and 2). Bennett Millpond is located approximately 1450 feet west of the source
area (Figures 1 and 2).
2.4 WELLHEAD PROTECTION AREAS
There are no designated wellhead protection areas in Chowan County.
2.5 DEEP AQUIFERS IN THE COASTAL PLAIN PHYSIOGRAPHIC REGION
The site (Figure 1) is located in the Coastal Plain Physiographic Province (NCGS, 1985), and is
underlain by Tertiary -age Yorktown, Pungo River, Castle Hayne, and Beaufort Formations.
These Tertiary -age formations are underlain by the Cretaceous -age Black Creek and Cape Fear
Formations. The primary aquifers underlying the source area are the shallow post -Miocene
Yorktown/Surficial aquifer, the middle -Miocene Pungo River aquifer, the Oligocene to Eocene
Castle Hayne aquifer, and the Paleocene Beaufort aquifer. These are underlain by the
Cretaceous Aquifer System (CAS), which is comprised of the Black Creek, Upper Cape Fear, and
Lower Cape Fear aquifers (Winner and Coble, 1989).
2.6 SUBSURFACE STRUCTURES
There are subsurface raw water, potable water, electric, telephone, fiber optic, and cable
television lines throughout the survey area. Basements were not identified at the site or in the
surrounding area.
2.7 LAND USE
Properties within the surrounding area are primarily used for residential and agricultural
purposes or are undeveloped (Figure 2). A few small businesses are located along Virginia Road
(NC Highway 32). The current property uses appear unlikely to change in the near future. The
closest place of public assembly is the Faith Pentecostal Holiness Church located 300 feet north
of the source area (Figure 2, Table 1). The residence closest to the source area is located 325
feet west and is owned by Robert and Janie Harrell (Figure 2, Table 1).
2.8 PROPERTY OWNERS AND OCCUPANTS
Property owners located within the 2000 foot survey radius (Figure 2) are identified in Table 1.
Property access agreements were negotiated and obtained from multiple property owners
concerning ongoing groundwater and surface water investigations of the site.
3.0 SITE GEOLOGY AND HYDROGEOLOGY
The site (Figure 1) is located in the Coastal Plain Physiographic Province according to the
Geologic Map of North Carolina (NCGS, 1985). Shallow stratigraphy was determined during the

Phase II Site Assessment
Chowan County Valhalla WTP
August 26, 2016 Page 4 of 7
installation of three, 12-foot deep groundwater monitoring wells (MW1 through MW3) and recent
field activities including Geoprobe° borings. Magette Well and Pump Company, Inc. installed the
monitoring wells for compliance boundary monitoring purposes, as requested by NCDEQ, DWR.
Table 2 includes detailed well construction information. The generalized stratigraphy
encountered is a brown to tan fine sand from the land surface to 14 feet BLS, an orange to
mottled tan medium to fine sand from 14 to 16 feet BLS, and a dark grey very fine sandy silt
interbedded with clay lenses, some shell fragments, and coarse sand lenses from 16 to at least
32 feet BLS. The total thickness of the surficial aquifer is not presently known, but it is_
anticipated to be no more than 50 feet.
On November 11, 2015, GMA measured the average depth to groundwater in the monitoring
wells at approximately 5.1 feet BLS (Table 2). The resulting equipotential map for November 11,
2015, indicated that groundwater was flowing predominantly to the northwest along a hydraulic
gradient of 0.003 feet per foot (GMA, 2015). This gradient appears to generally correspond to
the topography of the area surrounding the monitoring wells. Groundwater in the_ urficial
aquifer generally migrates westward toward Bennett Millpond (Figure 1), which is approximately
24 feet lower in elevation than the site. A Steeper hydraulic gradient probably exists west of
Virginia Road.
4.0 SAMPLING RESULTS
4.1 HISTORICAL GROUNDWATER SAMPLING
On November 12, 2015, groundwater samples were collected from the monitoring wells MW1
though MW3 and submitted to Prism Laboratories, Inc. (Prism) for analysis of chloride, total
manganese, and total iron. Analytical results (Table 3) indicated that chloride andiron
concentrations in all samples exceeded the 15A NCAC 2L groundwater standards (2L Standards).
The manganese concentrations in the monitoring well MW1 sample also exceeded the 2L
Standard (GMA, 2015)
4.2 SAMPLING METHODS
On May 25-26, 2016, 15 temporary Geoprobe° groundwater borings were advanced (TW1
through TW15) to depths ranging from 20 to 32 feet below land surface (BLS). Multiple
groundwater samples were collected at different depths from each boring (Figure 4, Table 4).
The borings were located on multiple parcels surrounding the Valhalla WTP (Figures 2 and 4),
and property access agreements were obtained from area property owners prior to performing
the field work.
A four -foot, 0.006-inch, continuous -slot screen was advanced to two or three different sampling
intervals (ranging from 3-7 feet to 28-32 feet BLS) at each Geoprobe° boring location. Table 4
shows the total boring depths and the screen interval for the sample collection. The data
reported for each boring location is for the screen interval with the highest chloride
concentration. A peristaltic pump was used to purge the temporary wells and to collect the

Phase II Site Assessment
Chowan County Valhalla WTP
August 26, 2016 Page 5 of 7
samples. The Geoprobe° rods and screen were decontaminated after each sample and each
boring, and fresh vinyl pump tubing was used to collect each sample.
Multiple surface water (SW1 through SW5, and SW7) and water -supply well samples (WSW4 and
WSW5) were collected on May 25-26, 2016. Grab samples were collected from either the surface
water body or discharge water from the well.
Water quality analysis was performed in the field on all surface water and groundwater samples.
GMA's field water -quality analyses included temperature, dissolved oxygen (DO), specific
conductivity, conductivity, pH, oxidation-reduction potential (ORP), and chloride. The field
measurements of DO, ORP, pH, specific conductivity, conductivity, and temperature were
monitored using an YSI Professional Plus meter. GMA performed field chloride analyses using
Hach QuanTab° titration test strips.
Select samples were submitted to Prism, for analysis of chloride, total manganese, dissolved
manganese, total iron, and dissolved iron. A description of GMA's technical methods and
standard procedures used are summarized in Appendix II. A copy of the laboratory report and
chain -of -custody forms for the surface and groundwater samples is included in Appendix III.
4.3 CURRENT GROUNDWATER RESULTS
Eleven of the 15 boring locations contained detectable concentrations of chloride by field and
laboratory analyses. Nine of the 15 samples shown in Table 3 are reported above the chloride 2L
Standard of 250 milligrams per liter (mg/Q. Samples from TW5 and TW12 contained detectable
iron and manganese.
The greatest concentrations of chloride (TW3, TW4, and TW5) are located to the west of the
WTP and generally toward Bennett Millpond, toward the southwest (TW8 and WSW5) and
perhaps toward well WSW5 due to active irrigation use, and north (TW10) of the WTP. Total
iron, total manganese, dissolved iron, and dissolved manganese were all detected above the 2L
standards for samples TW5 and TW12.
4.4 CURRENT SURFACE WATER RESULTS
Six surface water samples were collected on May 25-26, 2016, from surface water features
located near the WTP (SW1 though SW5 and SW7; no SW6 was collected at this time). The
former borrow ponds are located adjacent to the source of the release (SW7). A pond owned by
Mr. Rodney Harrell is located approximately 550 feet west of the source area (SW3). An
intermittent tributary of Bennett Millpond is located approximately 750 feet west and southwest
of the source area (SW2 and SW4). A pond owned by Mr. C.T. Dixon is located approximately
800 feet west of the source area (SW5). A tributary of Pollock Swamp is located approximately
1300 feet east of the source area (SW1). Bennett Millpond is located approximately 1450 feet
west of the source area (Figures 1 through 4).

Phase II Site Assessment
Chowan County Valhalla WTP
August 26, 2016 Page 6 of 7
Samples SW1, SW2, SW4, SW5, and SW7 were collected as grab samples from the body of
water. Sample SW3 was collected from the underground french drain pipe that discharges into
the pond. All samples were submitted to Prism for analysis of chloride, total manganese,
dissolved manganese, total iron, and dissolved iron. The chloride concentrations detected in
samples SW3, SW4, SW5, and SW7 exceeded the 2L Standard (Table 3). Total iron and total
manganese concentrations detected in samples SW1 through SW5 were reported above the
respective 2L Standards. The dissolved manganese concentrations were also above the 2L
Standards in samples SW3 and SW4 (Table 3).
Technical methods and standard procedures utilized for sample collection are described in
Appendix II. A copy of the laboratory report and chain -of -custody forms is included in Appendix
III.
4.5 WATER -SUPPLY WELL SAMPLING
Two water -supply wells were sampled on May 25-26, 2016 (WSW4 and WSW5). Samples were
collected and submitted to Prism for analysis of chloride, total manganese, dissolved manganese,
total iron, and dissolved iron. Both samples contained detectable concentrations of chloride, total
iron, total manganese, and dissolved manganese (Table 3). The sample collected from well
WSW4 contained concentrations of total iron, total manganese, and dissolved manganese above
the 2L Standards. The sample collected from well WSW5 contained concentrations of chloride,
total manganese, and dissolved manganese above the 2L Standards.
Active use of well WSW5 for yard irrigation is likely increasing chloride migration toward the well
and the surrounding area. The use of the well should be limited or stopped to prevent additional
movement of the chloride plume in the direction of well WSW5 and to prevent accumulation of
chloride in the soils at this property over time. Technical methods and standard procedures
utilized for sample collection are described in Appendix II. A copy of the laboratory report and
chain -of -custody forms is included in Appendix III.
4.6 FIELD MEASURED WATER QUALITY PARAMETERS
On May 25-26, 2016, all surface water and groundwater samples were tested in the field for DO,
specific conductivity, conductivity, temperature, pH, ORP, and chloride to evaluate the surficial
aquifer conditions (Table 4). The high specific conductivity and conductivity measurements are
consistent with elevated chloride concentrations in the monitoring wells.
5.0 CONCLUSIONS
Based on the ISA Report, additional delineation of the chloride plume was required by DWR
(Appendix I). GMA obtained property access from multiple parcel owners for ongoing surface
water and groundwater investigations. On May 25-26, 2016, GMA completed field investigations
that included surface water, water -supply well, and groundwater sampling and testing.
Groundwater samples were collected from temporary Geoprobe° groundwater borings at varying
depths. GMA utilized field water quality analysis to aid in assessment horizontally and vertically

Phase II Site Assessment
Chowan County Valhalla WTP
August 26, 2016 Page 7 of 7
of the chloride plume and laboratory data for confirmation of select data. This investigation is
the subject of this Phase II Site Assessment Report.
The predominant movement of the chloride plume appears to be toward the west and Bennett
Millpond, and a tributary of Bennett Millpond, and toward the southwest and active irrigation
well WSW5. Additional groundwater data are needed for areas north of sample location TW10,
and additional surface water data is recommended for Bennett Millpond northwest of sample
location SW5. Existing data for iron and manganese are inadequate to determine the extent of
those metals, but additional sampling will be included as part of the Comprehensive Site
Assessment recommended below.
6.0 RECOMMENDATIONS AND CSA WORK PLAN
GMA recommends completion of a Comprehensive Site Assessment for the Valhalla Water
Treatment Plant which will include the following tasks:
• Installation of 13 permanent groundwater monitoring wells for horizontal and vertical
delineation of the chloride, iron, and manganese plumes. Ten wells are proposed to
depths up to 50 feet BLS, and three deeper wells are proposed to depths of 90 feet BLS
(Figure 8).
• Coordination with property owners to select locations for permanent monitoring wells.
• Obtain necessary well construction permits for installation of permanent monitoring wells.
• Monitoring well data from an upgradient, offsite location will be used to establish natural
background concentrations for chloride, iron, and manganese (proposed wells MW13 and
MW13D).
• Conduct a comprehensive groundwater monitoring event that includes all monitoring
wells, area water -supply wells, and surface water samples, including the nearest point of
Bennett Millpond.
• Conduct aquifer testing using select monitoring wells.
• Complete a Comprehensive Site Assessment (CSA) Report and required Public
Notification of the CSA.
7.0 REFERENCES
Groundwater Management Associates, Inc., December 18, 2015, Initial Site Assessment, Valhalla
Water Treatment Plant, Edenton, Chowan County, North Carolina, 5 pages plus
attachments.
North Carolina Geological Survey, 1985, Geologic Map of North Carolina: North Carolina
Department of Environment and Natural Resources, Raleigh, North Carolina, 1 Sheet, 1:
500,000 Scale.
Winner, M.D. Jr., and Coble, R.W., 1989, Hydrogeologic Framework of the North Carolina Coastal
Plain Aquifer System, Raleigh, North Carolina, 155 pages.

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NORTH CAROLINA-CHOWAN COUNTY
7.5 MINUTE SERIES (TOPOGRAPHIC)
CONTOUR INTERVAL=2 METERS
MAP DATED 1981
File: DRAWINGS/158101
TOPO
TOPOGRAPHIC MAP
Date: 10/26/2015
Project No. 158101
VALHALLA WTP, EDENTON, CHOWAN CO.,
NC
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LEGEND
® SITE CHURCH a 2000 FOOT RADIUS GMA
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File: DRAWINGS/158101/ PROPERTIES WITHIN 2000 FEET OF SITE Date: 12/15/2015
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File: DRAWINGS/158101/ SITE MAP Date.- 8/1/2016
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TEMPORARY GROUNDWATER
Date: 8/1/2016
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Project No. 158101
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ESTIMATED HORIZONTAL EXTENT OF CHLORIDE CONCENTRATIONS
GREATER THAN 15A NCAC 2L GROUNDWATER STANDARDS
Concentrations of Chloride in'parts per million (ppm) are listed beside each well.
Chloride standard (per 15A NCAC 2L) is 250 ppm. Value inside (,) not used to constuct map* ,
LEGEND
® SITE ® MUNICIPAL WSW — -- CHLORIDE PLUME USED WHERE GMA
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OSCALE IN FEET40
0 SURFACE WATER SAMPLES
File: DRAWINGS/158101/ CHLORIDE PLUME, MAY 25-26, 2016 Date.- 8/1/2016
CHLORIDEPLUME201605
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LEGEND
SITE Q SURFACE WATER SAMPLES X INACTIVEWSW NS = NO SAMPLE
GMA
MONITORING WELL ® MUNICIPAL WSW —ROAD CENTERLINE
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Q TEMPORARY WELL LOCATIONS NONPOTABLE WSW — SURFACE WATER 0 SCALE IN FEET400
File: DRAWINGS/158101/ TOTAL IRON CONCENTRATIONS, MAY 25-26, 2016 Date: 8/1/2016
TOTALIRONPLUME201605
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SWS ' ' TNN3 / TW10 O
TW Q,.. WSW1 �.
V4 Jj '' 1
Is
SW3 e! CSC a
TW5
7.
SW7 MW3 %�4
k
% A
h
,WSWS TW8®
" TW12
SW2 /
0 TVV9
SW6
1 '
� TW13
� A
G O
},►` ,'��', it
� � g
TW14
1
/
Concentrations of Total Manganese in parts per billion (ppb)
are listed beside each well.
'4
Total Manganese standard (per 15A NCAC 2L) is 50 ppb. % =.
LEGEND
SITE
SURFACE WATER SAMPLES X INACTIVEWSW NS = NO SAMPLE
GMA
MONITORING WELL ®
MUNICIPAL WSW — — ROAD CENTERLINE
® TEMPORARY WELL LOCATIONS
SCALE IN FEET
NONPOTABLE WSW — SURFACE WATER 0 400'
11
File: DRAWINGS/158101/
TOTAL MANGANESE CONCENTRATION, MAY 25-26, 2016
Date: 8/1/2016
TOTALMANGPLUME201605
Project No. 158101
VALHALLA WTP, EDENTON, CHOWAN COUNTY, NC
Figure 7

i
j xl � �•
y
T J w
WS
• r l rr� �`
1NSW3 \
e j
MW11•
MW10
t: MW13
MW13D`a
WSW4 ! /
SW5 %, . ' MW9D + / MW12 "
NMW8 MW9 MW1 ry;
SW4 o � r `� WS0.
MW7 = ,/ MW213 MW4 SW1
MW3 r tqW
40—
j WSW5i
t
! 'S
WSW6 /
X MW6
".^ I MW5
to
LEGEND
® SITE X INACTIVEWSW — — ROAD CENTERLINE
MONITORING WELL ® SURFACE WATER SAMPLES SURFACE WATER G MA
"* SCALE IN FEET
® MUNICIPAL WSW � PROPOSED MW, INTERMEDIATE TYPE II PARCEL BOUNDARIES 0 400 "'
NON POTABLE WSW PROPOSED MW, DEEP TYPE II
File: DRAWINGS/158101/ PROPOSED PERMANENT MONITORING WELL LOCATIONS Date: 7/21/2016
PROP PERM MW
Project No. 158101 VALHALLA WTP, EDENTON, CHOWAN COUNTY, NC Figure 8

TABLES

Table 1. List of Properties within 200 Feet of the Source Area
Valhalla WTP Edenton, Chowan County
MAP ID
Parcel Number
Property Owner's
Property AddressT
Property Owner's
Telephone
Well Status
I
Well ID
Water
Distance &
Direction
Property
Name
Address
Service
Description
-
from i
1
689700290354
Chowan County
1608 Virginia Road
Post Office Box 1030
252-482-7447
municipal, active
WSW1
yes
Site
County water
Edenton, NC 27932
Edenton, NC 27932
potable water -supply
treatment plant
2
689700290717
Faith Pentecostal
1614 Virginia Road
1614 Virginia Road
252-482-7195
no
yes
300' N
church
Holiness Church
Edenton, NC 27932
Edenton, NC 27932
3
689700292664
Chowan County
1610 Virginia Road
Post Office Box 1030
252-482-9989
no
yes
250' N
County water
Edenton, NC 27932
Edenton, NC 27932
(Thomas Bulls)
treatment plant
4
689700298434
Chowan County
Off Coffield Road
Post Office Box 1030
252-482-7447
no
no
430' E
undeveloped
Edenton, NC 27932
cleared land
5
689700282038
Virginia B. Vogedes
Off Virginia Road
104 Blount Street
252-333-0063
no
no
600' SE
farmland
and Hattie Byrum
Edenton, NC 27932
(Ginger Vogedes)
6
689700189746
Virginia B. Vogedes
1528 Virginia Road
104 Blount Street
252-333-0063
no
no
400' S
farmland
and Hattie Byrum
Edenton, NC 27932
Edenton, NC 27932
(Ginger Vogedes)
7
689700184985
Linda G.Bunch
1541 Virginia Road
1541 Virginia Road
252-221-4151
per no, neighbor
p g
yes
520' SW
house
Edenton, NC 27932
Edenton, NC 27932
(work #)
8
689700195008
Todd and Virginia
1543 Virginia Road
1543 Virginia Road
252-482-4043
no
yes
400' SW
house
Smith
Edenton, NC 27932
Edenton, NC 27932
9
689700193377
Rodney T. Harrell, Jr.
1545 Virginia Road
602 E. Church Street
252-312-7518
no
yes
230' W
acreage with house,
and Joyce B. Harrell
Edenton, NC 27932
Edenton, NC 27932
pond, buildings
10
689700195391
Robert and Janie
1601 Virginia Road
1601 Virginia Road
no
yes
250' W
house
Harrell
Edenton, NC 27932
Edenton, NC 27932
11
689700196433
Rodney T. Harrell, Jr.
1603 Virginia Road
602 E. Church Street
252-312-7518
no
yes
200' W
house
and Joyce B. Harrell
Edenton, NC 27932
Edenton, NC 27932
12
689800104205
C.T. Dixon Jr.; Marsha
1623 Virginia Road
2016 Rocky Hock Road
252-482-3082
252-333-5215
inactive irrigation
WSW4
yes
600' NW
acreage with barn,
Gregory (daughter)
Edenton, NC 27932
Edenton, NC 27932
(Marsha Gregory cell
office, mini storage
* The distance (in feet) is measured from the source area to the closest percel boundary of the property if a water -supply well (WSW) is not present on the property.

Table 1. List of Properties within 200 Feet of the Source Area
Valhalla WTP Edenton, Chowan County
MAP ID
Parcel Number
Property Owner's
Property Address
Property Owner's
Telephone
Well Status
Well ID
Water
Distance &Property
Direction
Name
Address
Service
Description
P
from Site*
13
689700198910
Waldo and Nancy
1609 Virginia Road
216 Oak Ridge Road
252-333-2712
apartments and
Winslow
Edenton, NC 27932
Edenton, NC 27932
(Winslow rentals)
no
yes
350' NW
houses
14
689800115106
Clark and Joyce Wylde
1629 Virginia Road
Post Office Box 487
252-223-2673
no
no (yes per
1150' NW
wooded acreage,
modular home near
Edenton, NC 27932
Newport, NC 28570
p
(Clark and Joyce)
Mrs. Wylde)
millpond
15
689800201819
Jessie Ward
1637 Virginia Road
1637 Virginia Road
252-482-2975
no
yes
1400' NW
house
Edenton, NC 27932
Edenton, NC 27932
Church of the Lord
16
689800211184
Jesus Christ of the
1641 Virginia Road
1641 Virginia Road
252-482-8063
no
yes
1580' NW
church
Apostolic Faith
Edenton, NC 27932
Edenton, NC 27932
17
689800212344
Elton and Gloria Griffin
1645 Virginia Road
1645 Virginia Road
252-482-3746
no
yes
1880' NW
house
Edenton, NC 27932
Edenton, NC 27932
(Carroll Griffin)
18
689800214291
Gertrude Faye Ashley1646
y
Virginia Road
1646 Virginia Road
252-562-4706
no
yes
1800' NW
house
Edenton, NC 27932
Edenton, NC 27932
(Ed Ashley Jr.)
19
689800214028
Gertrude Faye Ashley
1642 Virginia Road
1646 Virginia Road
252-562-4706
no
yes
1660' N
house
Edenton, NC 27932
Edenton, NC 27932
(Ed Ashley Jr.)
20
689800204409
Gertrude Faye Ashley
1630 Virginia Road
1646 Virginia Road
252-562-4706
no
no
500' N
farmland
Edenton, NC 27932
Edenton, NC 27932
(Ed Ashley Jr.)
21
689800200096
Linda Vaughan
1620 Virginia Road
1515 Blanche Drive,
757-469-6105
no
yes
600' N
house
Edenton, NC 27932
Portsmouth, VA 23701
(Jamie Meads, renter)
22
689700290972
Scott and Jody Mason
1618 Virginia Road
1946 Mocksville Highway
252-339-9478 (Jesse
no
yes
500' N
house
Edenton, NC 27932
Cleveland, NC 27013
Byrum III, renter)
23
689800217017
Gertrude Faye Ashley
110 Coffield Road
1646 Virginia Road
252-562-4706
no
no
1530' NE
wooded acreage
Edenton, NC 27932
Edenton, NC 27932
(Ed Ashley Jr.)
24
689800300577
Chowan County
122 Coffield Road
Post Office Box 1030
252-482-7447
municipal, inactive
WSW2
no
1600' NE
WSW well lot
Edenton, NC 27932
Edenton, NC 27932
potable water -supply
25
689800301308
James Russell
124 Coffield Road
124 Coffield Road
252-482-3458
no
yes
1420' NE
house
Edenton, NC 27932
Edenton, NC 27932
(# not in service)
26
689800207352
Brian and Brandi
118 Coffield Road
134 Coffield Road
252-333-0810 (Brian)
irrigation for pool
WSW3
yes
1200' NE
house with acreage
Richardson
Edenton, NC 27932
Edenton, NC 27932
252-482-8767 (Brandi)
* The distance (in feet) is measured from the source area to the closest corner of the property, if a water -supply well (WSW) is not present on the property.

Table 1. List of Properties within 200 Feet of the Source Area
Valhalla WTP Edenton, Chowan County
MAP ID
Parcel Number
Property Owner's
Property Address
Property Owner's
Telephone
Well Status
Well ID
Water
Distance &
Direction
Property
Name
Address
Service
Description
P
from Site*
27
689700397702
James and Connie
140 Coffield Road
2355 Virginia Road
252-221-4726
no
no
1100' NE
farmland
Copeland
Edenton, NC 27932
Edenton, NC 27932
28
689700394328
Brian and Brandi
134 Coffield Road
134 Coffield Road
252-333-0810 (Brian)
Richardson
Edenton, NC 27932
Edenton, NC 27932
252-482-8767 (Brandi)
no
no
980' E
vacant lot
29
689700389906
Virginia B. Vogedes
200 Coffield Road
104 Blount Street
252-333-0063
and Hattie Byrum
Edenton, NC 27932
Edenton, NC 27932
(Ginger Vogedes)
no
no
1650' E
wooded acreage
Warren Grove Baptist
122 Warren Grove
122 Warren Grove Road
30
689700282004
Church
Road Edenton, NC
Edenton, NC 27932
252-482-8084
no
yes
1200' SE
church
27932
31
689700275313
Curtis and Barbara
108 Warren Grove
Road Edenton, NC
302 Mexico Road
252-482-3077
no
1450' SE
wood and farmland
Twine
27932
Edenton, NC 27932
919-212-2817
no
acreage
32
689700271764
Geraldine W Wilson,
116 Warren Grove116
Road Edenton, NC
Warren Grove Road
252-482-8125
Trustee
Edenton, NC 27932
(lames Wilson)
no
yes
1550' SE
house
27932
33
689700170689
Virginia B. Vogedes
1511 Virginia Road
104 Blount Street
252-333-0063
wood and farmland
and Hattie Byrum
Edenton, NC 27932
Edenton, NC 27932
(Ginger Vogedes)
no
no
1270' S
acreage
34
689700182472
Ray and Teresa
1531 Virginia Road
1531 Virginia Road
252-482-8987
inactive irrigation
9
WSW6
yes
1200' SW
house and shop
Bateman
Edenton, NC 27932
Edenton, NC 27932
35
689700083880
Virginia B. Vogedes
Off Virginia Road
104 Blount Street
252-333-0063
no
no
700' W
wood and farmland
and Hattie Byrum
Edenton, NC 27932
(Ginger Vogedes)
acreage
1537 Virginia Road
252-482-8538
36
689700184732
Thomas Birckhead
1537 Virginia Road
252-333-7461
no
yes
750' SW
house
Edenton, NC 27932
(Thomas cell)
37
689700184856
Thomas and Susan
1539 Virginia Road
1537 Virginia Road
252-482-8538
252-333-7461
active irrigation
WSWS
yes
650' SW
art studio
Birckhead
Edenton, NC 27932
(Thomas cell)
(approx 40' deep)
* The distance (in feet) is measured from the source area to the closest corner of the property, if a water -supply well (WSW) is not present on the property.

Table 2. Construction Date, Depth, Screened Interval, and Water Level Measurement for Monitoring Wells
Valhalla WTP Edenton, Chowan County
MW
11/12/2015
Well Casing
Screened
Bottom
Ground
Top of
Date
Well
Stickup
Well ID
Depth
Interval
of Well
Elevation
Casing
Depth to
Elevation
Installed
Diameter
(ft bls)
(ft bls)
(ft bls)
at MW
Height
Elevation
Water
of Water
(ft als)
MW1
5/6/2015
2"
0 - 2.0
2.0 - 12
12
37.86
2.93
40.79
9.63
31.16
MW2
5/6/2015
2"
0 - 2.0
2.0 - 12
12
37.17
2.96
40.13
8.29
31.84
MW3
5/6/2015
2"
0 - 2.0
2.0 - 12
12
36.30
3.08
39.38
6.46
32.92
bls = Below Land Surface als = above land surface
Depth to water is measured from the top of the well casing, and the well depth is measured from land surface.
All measurements are in feet except for well diameter, which is in inches.

Table 3. Summary of Groundwater and Surface Water Sampling Analytical Results
Valhalla WTP Edenton, Chowan County
Well ID
Date Collected
Chloride
Total Iron
Total
Manganese
Dissolved
Iron
Dissolved
Manganese
5/26/2015
3,200
1,963
1,929
MW1
7/10/2015
3,350
2,650
1,301
11/12/2015
4,800
4,600
6,600
5/26/2015
1,110
484
31
MW2
7/10/2015
1,000
446
33
11/12/2015
460
340
29
5/26/2015
918
1,001
37
MW3
7/10/2015
1,200
2,632
64
11/12/2015
1,000
1 700
48
TW 1 *
5/25/2016
148
TW2*
5/25/2016
NM
TW3*
5/25/2016
2,257
TW4*
5/26/2016
921
TW5
5/25/2016
1,000
140,000
910
460
610
TW6*
5/25/2016
NM
TW7*
5/25/2016
549
TW8*
5/26/2016
999
TW9*
5/26/2016
500
TW10*
5/26/2016
1,492
TW11*
5/26/2016
52
TW12
5/26/2016
660
70,000
1500
560
1200
TW13*
5/26/2016
NM
TW14*
5/26/2016
NM
TW15*
5/26/2016
279
WSW4
5/26/2016
150
9,200
400
<100
120
WSW5
5/25/2016
1,100
280
310
270
310
SW 1
5/26/2016
21
2,800
54
<100
38
SW2
5/26/2016
30
6,900
57
<100
<10
SW3
5/25/2016
510
8,900
120
<100
99
SW4
5/26/2016
320
1,400
140
160
76
SW5
5/25/2016
540
5,100
230
100
20
SW7
5/26/2016
1,300
200
39
<100
11
201215A NCAC 2L Standard
250 mq1L
300 uglL 1
50 uglL f
NSE I
NSE
Micrograms per liter (ug/L), is equivalent to parts per billion (ppb).
Milligrams per liter (mg/L), is equivalent to parts per million (ppm).
Bold = Concentration exceeds Laboratory Detection Limits
Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard
NM - not measureable (on Quantab Chloride test strip scale)
* - chloride test strip (no laboratory data); highest reading from temp well
NSE - no standard established

Table 4. Summary of Groundwater and Surface Water Natural Attenuation Parameters
Valhalla WTP Edenton, Chowan County
Well
Number
Screen
Interval
Total Boring
Depth
Sample
Date
Temper-
aturDO
(OC)
C)
(mg/L)
Specific
Conduc-
tivity
CMSICMMW1
Conduc-
(MS/cm)
tS/c
pH
ORP
(mV)
Chloride
ppm
(test strip)
2-12
12
11/12/2015
21.9
0.69
13,466
12,669
6.60
30.0
MW2
2-12
12
11/12/2015
19.5
0.75
1887
1688
6.69
-26.0
MW3
2-12
12
11/12/2015
18.4
0.36
3579
3136
6.11
18.6
TW1
16-20
28
5/25/2016
21
3.39
704
646
4.1
241
148
TW2
16-20
20
5/25/2016
20.1
2.21
333
302
5.7
79.8
NM
TW3
28-32
32
5/25/2016
23.8
7.07
7664
7529
5.6
102
2257
TW4
16-20
30
5/26/2016
21.0
5.35
3907
3619
4.8
190
921
TW5
24-28
28
5/25/2016
26.1
8.75
3039
3113
5.8
147
657
TW6
6-10
20
5/25/2016
18.4
7.02
335.3
297
4.62
159
NM
TW7
24-28
28
5/25/2016
NR
NR
NR
NR
NR
NR
549
TW8
4-8
30
5/26/2016
22
1.14
4173
3924
5.03
196
999
TW9
26-30
30
5/26/2016
22.1
1.09
2865
2707
4.87
224
500
TW10
26-30
30
5/26/2016
25.6
0.78
8068
8167
4.62
170
1492
TWil
26-30
30
5/26/2016
NR
NR
NR
NR
NR
NR
52
TW12
16-20
30
5/26/2016
20.5
0.55
3847
3525
6.02
129
921
TW13
16-20
20
5/26/2016
20
8.11
281
255
4.78
166
NM
TW14
16-20
20
5/26/2016
22.4
1.55
421
401
5.58
164
NM
TW15
20-24
24
5/26/2016
25.8
0.57
2144
2151
5.9
159
279
SW1
NA
NA
5/26/2016
26
6.16
235
240
5.37
152
NR
SW2
NA
NA
5/26/2016
21.3
7.66
295
276
5.54
170
30
SW3
NA
NA
5/25/2016
18.6
3.6
1869
1637
6.06
149
482
SW4
NA
NA
5/26/2016
19.9
6.28
1054
952
5.7
189
260
SW5
NA
NA
5/25/2016
25.4
6.63
1809
1923
5.36
153
482
SW7
NA
NA
5/26/2016
26.3
12.78
4168
4240
5.31
164
848
WSW4
?
NA
5/26/2016
17.8
6.57
646
558
5.55
182
162
WSW5
14-40
NA
5/25/2016
18.8
4.57
3580
3164
4.33
204
999
NR - no reading (not enough water to take readings)
NM - not measureable (on Quantab Chloride test strip scale)
NA - not applicable
*Indicates maximum level detected at sample point if multiple
samples collected (i.e. tempoary well (TW) locations)

APPENDIX I
COPY OF NCDWR LETTER DATED
JANUARY 11, 2016

PAT MCCRORY
DONALD R. VAN DER VAART
S. JAY ZIMMERMAN
January 11, 2016
Mr. Kevin Howard, County Manager
County of Chowan
PO Box 1030
Edenton, North Carolina 27932
RE: Initial Site Assessment Report Review
Vahalla Water Treatment Plant
NPDES Permit No. NCO032719
Chowan County, North Carolina
Dear Mr. Howard:
On December 22, 2015, the Washington Regional Office received a report for the above
referenced facility that presented the results of the Initial Site Assessment performed in response
to the Notice Of Violation (NOV) issued by the Division of Water Resources — Water Quality
Regional Operations Section on October 6, 2015, for exceedance of the North Carolina
Groundwater Quality Standards (15A NCAC 2L). Based on our review, this office concurs with
the conclusions and recommendations in the report and requests that Chowan County proceed with
the performance of a Comprehensive Site Assessment (CSA), as required by 15A NCAC 2L
.0106(g). The CSA should include, but is not limited to the following:
The source and cause of contamination;
2. Any imminent hazards to public health and safety and actions taken to mitigate them
in accordance with 15A NCAC 2L .0106(fl;
All receptors and significant exposure pathways;
4. The horizontal and vertical extent of soil and groundwater contamination and all
significant factors affecting contaminant transport; and
5. Geological and hydrogeological features influencing the movement, chemical, and
physical character of the contaminants.
State of North Carolina I Environmental Quality I Water Resources —Water Quality Regional Operations —Washington Regional Office
943 Washington Square Mail, Washington, NC 27889
252-946-6481

Mr. Kevin Howard
January 11, 2016
Page 2 of 2
The CSA must be conducted under the supervision of a Professional Engineer (P.E.) or
Licensed Geologist (L.G.). The subsequent report must be signed and sealed by a P.E. or L.G.
For information on available consultants and engineers, you may contact the Consulting Engineers
Council of North Carolina at [phone], or the North Carolina Board for Licensing of
Geologist at [phone], or the North Carolina Petroleum Marketers Association at (919) 782-
4411.
The items listed above must be addressed in a CSA report within ninety (90) days of
issuance of this letter. As noted in the NOV, failure to submit the CSA report by the required
deadline may result in the recommendation of enforcement action.
If you have any questions regarding the contents of this letter or need additional
information, you may contact Robert Tankard at [phone] or Randy Sipe at [phone].
Sincerely,
Robert Tankard, Assistant Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
cc: rowan County Health Department
--- -- - - atie X.- Hackney,. P.G. - -Groundwater Management —Associates, Inc.,..4300 -..-. -.-
Sapphire Court, Suite 100, Greenville, NC 27834
Water Quality Regional Operations Section Central Files
WaRO
RT/drs

APPENDIX II
TECHINCAL METHODS AND STANDARD PROCEEDURES

TECHNICAL METHODS AND STANDARD PROCEDURES
I. GEOPROBE® GROUNDWATER SAMPLING
A pick-up truck mounted Geoprobe°, decontaminated 4-foot Geoprobe° rods, and a
decontaminated 4-foot, 0.006-inch continuous -slot screen was used to collect the Geoprobe°
groundwater samples (TW1 through TW15). The screen segment was advanced to two or
three select sampling intervals at each boring. A peristaltic pump was used to purge the
temporary wells and to collect the samples. The Geoprobe° rods and screen were
decontaminated after each sample and boring, and fresh vinyl tubing was used for the purging
and sampling of each temporary well. Fresh, disposable vinyl gloves were worn during the
installation, purging, and sampling of each temporary well. Groundwater collected for field
analysis was collected in decontaminated stainless steel beakers. All laboratory sample
containers were stored in plastic Ziploc® bags and were immediately placed in a cooler with ice
following sample collection. Select groundwater samples collected from the temporary
Geoprobe° wells were submitted to a North Carolina certified laboratory, for analysis of
chloride, total iron, dissolved iron, total manganese, and dissolved manganese. Samples were
delivered to the North Carolina certified laboratory, Prism Laboratories, Inc., for analysis under
chain -of -custody protocol by the lab's courier service. All borings were abandoned using
bentonite clay and capped with native soil at land surface.
II. COLLECTION OF SURFACE WATER SAMPLES
Surface water samples were collected using a stainless -steel beaker and new disposable nitrite
gloves. The stainless -steel beaker was decontaminated between each sample location. Prior to
sample collection the stainless -steel pitcher was rinsed with surface water by submerging it into
standing water within the surface water feature, then removing it from the water and dumping
its contents on the bank of the surface water feature. The stainless -steel pitcher was then used
to collect standing water within the surface water feature and transferred to sample containers
provided by the North Carolina certified laboratory. All sample containers were stored in plastic
Ziploc® bags and were immediately placed in a cooler with ice. Samples were delivered by a
courier to a North Carolina certified laboratory, Prism Laboratories, Inc., for analysis under
chain -of -custody protocol.
III. COLLECTION OF WATER -SUPPLY WELL SAMPLES
The water -supply well was purged for a minimum of five minutes prior to sample collection. Any
hose was disconnected prior to sample collection in the laboratory supplied container. New
disposable nitrile gloves were worn during the purging and sampling of each well.
For wells without an active pump, either a peristaltic pump with new disposable polyethylene
tubing, or a decontaminated purge pump with new disposable polyethylene tubing was used to
purge the well. New disposable nitrile gloves were worn during the purging and sampling of
each well.

Groundwater samples were transferred to laboratory supplied containers for analysis. Standard
procedure for chloride, manganese, and total iron analysis is to collect one groundwater sample
for all three analysis from the well. All sample containers were stored in plastic Ziploc® bags
and were immediately placed in a cooler with ice. Samples were submitted to a North Carolina
certified Laboratory for analysis under chain -of -custody protocol, by courier service.

APPENDIX III
COPY OF ANALYTICAL REPORT FOR GROUNDWATER AND SURFACE WATER
SAMPLES

RSIM
ABR
Full-Service Analytical &
Environmental Solutions
Groundwater Manage. Assoc.(GREE)
Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
NC Certification No. 402
NC Drinking Water Cert No. 37735
SC Certification No. 99012
FL NELAC Cert No. E87519
VA NELAC Cert No. 460211
Project: 158101 - Valhalla WTP
Lab Submittal Date: 06/01/2016
Prism Work Order: 6060004
Case Narrative
This data package contains the analytical results for the project identified above and includes a Case Narrative, Sample
Results and Chain of Custody. Unless otherwise noted, all samples were received in acceptable condition and processed
according to the referenced methods.
Data qualifiers are flagged individually on each sample. A key reference for the data qualifiers appears at the end of this case
narrative.
Please call if you have any questions relating to this analytical report.
Respectfully,
PRISM LABORATORIES, INC.
Angela D. Overcash
VP Laboratory Services
Data Qualifiers Key Reference:
Reviewed By Terri W. Cole For Angela D. Overcash
Project Manager
BH MB greater than one half of the RL, but the sample concentrations are greater than 1 Ox the MB.
M Matrix spike outside of the control limits.
BRL Below Reporting Limit
MDL Method Detection Limit
RPD Relative Percent Difference
* Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and
reporting limit indicated with a J.
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-8001529-6364 - Fax: [phone] Page 1 of 16

PFull -Service Analytical R
R1 S M I Environmental Solutions
Sample Receipt Summary
06/13/2016
Prism Work Order: 6060004
Client Sample ID Lab Sample ID Matrix Date Sampled Date Received
SW1
6060004-01
Water
05/26/16
06/01/16
SW2
6060004-02
Water
05/26/16
06/01/16
SW3
6060004-03
Water
05/25/16
06/01/16
SW4
6060004-04
Water
05/26/16
06/01/16
SW5
6060004-05
Water
05/25/16
06/01/16
SW7
6060004-06
Water
05/26/16
06/01/16
WSW5
6060004-07
Water
05/25/16
06/01/16
WSW4
6060004-08
Water
05/26/16
06/01/16
TW5
6060004-09
Water
05/25/16
06/01/16
TW12
6060004-10
Water
05/26/16
06/01/16
Samples were received in good condition at 3.6 degrees C unless otherwise noted.
This report should not be reproduced. except in its entirety, without the written consent of Prism Laboratories; Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 2 of 16

PRISM Full-5arvice Analytical
Environmental Solutions
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville; NC 27834
Project: 158101 -Valhalla WTP
Sample Matrix: Water
Laboratory Report
06/13/2016
Client Sample ID: SW1
Prism Sample ID: 6060004-01
Prism Work Order: 6060004
Time Collected: 05/26/16 17:40
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
21
mg/L
1.0
0.20
1
*300.0
612116 13:46
EGC
P6170094
Dissolved Metals
Iron
BRL
mg/L
0.10
0.020
1
*200.7
6/9/16 18:19
bgm
P6F0189
Manganese
0.038
mg/L
0.010
0.0019
1
*200.7
6/9116 18:19
BGM
P6F0189
Total Metals
Iron
2.8 BH
mg/L
0.10
0.020
1
*200.7
617/16 20:42
bgm
P6F0130
Manganese
0.064
mg/L
0.010
0.0019
1
*200.7
617/16 20:42
bgm
P6170130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories; Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0643
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 3 of 16

FuII-Service Analytical 8
Laboratory Report
Environmental Solutions
Iv�' AM
06/13/2016
Groundwater Manage. Assoc.(GREE)
Project: 158101 -Valhalla WTP
Client Sample ID: SW2
Attn: Katie Hackney
Prism Sample ID: 6060004-02
4300 Sapphire Court, Suite 100
Prism Work Order: 6060004
Greenville, NC 27834
Sample Matrix: Water
Time Collected: 05/26/16 18:05
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution Method Analysis Analyst
Batch
Limit
Factor Date/Time
ID
Anions by Ion Chromatography
Chloride
30
mg/L
1.0
0.20
1 *300.0 612/16 14:02 1
P6F0094
Dissolved Metals
Iron
BRL
mg/L
0.10
0.020
1 *200.7 6/9/16 18:42 bgm
P6F0189
Manganese
BRL
mg/L
0.010
0.0019
1 *200.7 6/9/16 18:42 BGM
P6F0189
Total Metals
Iron
0.69 BH mg/L
0.10
0.020
1 *200.7 617/16 20:49 bgm
P6F0130
Manganese
0.057
mg/L
0.010
0.0019
1 *200.7 617/16 20:49 bgm
P6F0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories: Inc.
449 Springbrook Road - P.O. Box 240643 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 4 of 16 ,

PFull -Service Analytical
R I S M ( Environmental Solutions
:tl
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Project: 158101 -Valhalla WTP
Sample Matrix: Water
Laboratory Report
06/13/2016
Client Sample ID: SW3
Prism Sample ID: 6060004-03
Prism Work Order: 6060004
Time Collected: 05/25/16 16:00
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
510
mg/L
20
4.1
20
*300.0
612/16 16:02
EGC
P61`0094
Dissolved Metals
Iron
BRL
mg/L
0.10
0.020
1
*200.7
6/9/16 18:49
bgm
P6F0189
Manganese
0.099
mg/L
0.010
0.0019
1
*200.7
6/9/16 18:49
BGM
P6170189
Total Metals
Iron
8.9 BH
mg/L
0.10
0.020
1
*200.7
617/16 20:66
bgm
P6F0130
Manganese
0.12
mg/L
0.010
0.0019
1
*200.7
617/16 20:56
bgm
P61`0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories: Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/629-6364 - Fax: [phone] Page 5 of 16

RISM Full -Service Analytical &
Environmental Solutions
r '3f1�F. S. IYG_
Groundwater Manage. Assoc.(GREE) Project: 158101 -Valhalla WTP
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834 Sample Matrix: Water
Laboratory Report
06/13/2016
Client Sample ID: SW4
Prism Sample ID: 6060004-04
Prism Work Order: 6060004
Time Collected: 05/26/16 08:10
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
320
mg/L
10
2.0
10
*300.0
6/2/16 16:19
EGC
P6170094
Dissolved Metals
Iron
0.16
mg/L
0.10
0.020
1
*200.7
619/16 18:67
bgm
P6F0189
Manganese
0.076
mg/L
0.010
0.0019
1
*200.7
6/9/16 18:67
BGM
P61`0189
Total Metals
Iron
1.4 BH
mg/L
0.10
0.020
1
*200.7
6/7/16 21:04
bgm
P6F0130
Manganese
0.14
mg/L
0.010
0.0019
1
`200.7
617/16 21:04
bgm
P6F0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/629-6364 - Fax: [phone] Page 6 of 16

PRISM Full -Service Analytical &
Environmental Solutions
_. _fif i.ncaoa�.",'� .�n
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Project: 158101 -Valhalla WTP
Sample Matrix: Water
Laboratory Report
06/13/2016
Client Sample ID: SW5
Prism Sample ID: 6060004-05
Prism Work Order: 6060004
Time Collected: 05/25/16 11:50
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
540
mg/L
10
2.0
10
*300.0
6/2/16 17:08
EGC
P6F0094
Dissolved Metals
Iron
0.10
mg/L
0.10
0.020
1
*200.7
619116 19:05
bgm
P6170189
Manganese
0.020
mg/L
0.010
0.0019
1
*200.7
6/9116 19:06
BGM
P61`0189
Total Metals
Iron
5.1 BH
mg/L
0.10
0.020
1
`200.7
617/16 21:12
bgm
P6F0130
Manganese
0.23
mg/L
0.010
0.0019
1
`200.7
617/16 21:12
bgm
P6170130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories; Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0643
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 7 of 16

Laboratory Report
Analytical
P R I S M
&
ZFull-Service
Environmental Solutions
06113/2016
Groundwater Manage. Assoc.(GREE)
Project: 158101 - Valhalla
WTP
Client Sample ID: SW7
Attn: Katie Hackney
Prism Sample ID: 6060004-06
4300 Sapphire Court, Suite 100
Prism Work Order: 6060004
Greenville, NC 27834
Sample Matrix: Water
Time Collected: 05/26/16 12:15
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution Method Analysis Analyst
Batch
Limit
Factor Date/Time
ID
Anions by Ion Chromatography
Chloride
1300
mg/L
20
4.1
20 *300.0 612116 17:24 EGC
P6170094
Dissolved Metals
Iron
BRL
mg/L
0.10
0.020
1 *200.7 6/9116 19:12 bgm
P6F0189
Manganese
0.011
mg/L
0.010
0.0019
1 *200.7 6/9/16 19:12 BGM
P6F0189
Total Metals
Iron
0.20
mg/L
0.10
0.020
1 `200.7 6/9/16 22:28 bgm
P6F0179
Manganese
0.039
mg/L
0.010
0.0019
1 *200.7 617/16 21:20 bgm
P6F0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories; Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 8 of 16

.= Full -Service Analytical 8
P R I S M I
Environmental Solutions
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Project: 158101 -Valhalla WTP
Sample Matrix: Water
Laboratory Report
06/13/2016
Client Sample ID: WSW5
Prism Sample ID: 6060004-07
Prism Work Order: 6060004
Time Collected: 05/25/16 17:45
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
1100
mg/L
10
2.0
10
*300.0
613/16 10:46
EGC
P6F0094
Dissolved Metals
Iron
0.27
mg/L
0.10
0.020
1
*200.7
6/9/16 19:20
bgm
P61`0189
Manganese
0.31
mg/L
0.010
0.0019
1
*200.7
619/16 19:20
BGM
P6F0189
Total Metals
Iron
0.28
mg/L
0.10
0.020
1
*200.7
6/9/16 22:36
bgm
P6F0179
Manganese
0.31
mg/L
0.010
0.0019
1
*200.7
617/16 21:38
bgm
P6F0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories; Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-8001529-6364 - Fax: [phone] Page 9 of 16

�R R I S M � Environmental
Analytical s
Environmental Solutions
.. ^.� Ln6iJAA�ORiFS IhG.
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Project: 158101 -Valhalla WTP
Sample Matrix: Water
Laboratory Report
06/13/2016
Client Sample ID: WSW4
Prism Sample ID: 6060004-08
Prism Work Order: 6060004
Time Collected: 05/26/16 07:45
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
160
mg/L
1.0
0.20
1
*300.0
6/2/16 17:66
EGC
P6F0094
Dissolved Metals
Iron
BRL
mg/L
0.10
0.020
1
*200.7
6!9/16 19:28
bgm
P6F0189
Manganese
0.12
mg/L
0.010
0.0019
1
*200.7
619/16 19:28
BGM
P61`0189
Total Metals
Iron
9.2 BH
mg/L
0.10
0.020
1
*200.7
617116 21:54
bgm
P6F0130
Manganese
0.40
mg/L
0.010
0.0019
1
*200.7
617/16 21:64
bgm
P6F0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories; Inc.
449 Springbrook Road - P.O. Box 240643 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/629-6364 - Fax: [phone] Page 10 of 16

P R I S M � Environmental
Analytical s
Environmental Solutions
Groundwater Manage. Assoc.(GREE) Project: 158101 -Valhalla WTP
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834 Sample Matrix: Water
Laboratory Report
06/13/2016
Client Sample ID: TW5
Prism Sample ID: 6060004-09
Prism Work Order: 6060004
Time Collected: 05/25/16 17:15
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis
Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
1000
mg/L
10
2.0
10
*300.0
6/3116 11:01
EGC
P6F0094
Dissolved Metals
Iron
0.46
mg/L
0.10
0.020
1
*200.7
619/16 19:35
bgm
P6F0189
Manganese
0.61
mg/L
0.010
0.0019
1
*200.7
619/16 19:36
BGM
P61`0189
Total Metals
Iron
140 BH
mg/L
0.10
0.020
1
*200.7
617/16 22:01
bgm
P6F0130
Manganese
0.91
mg/L
0.010
0.0019
1
*200.7
617/16 22:01
bgm
P61`0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-8001529-6364 - Fax: [phone] Page 11 of 16

Laboratory Report
Full -Service Analytical &
PRISM Environmental Solutions
06/13/2016
Groundwater Manage. Assoc.(GREE)
Project: 158101 -Valhalla WTP
Client Sample ID: TW12
Attn: Katie Hackney
Prism Sample ID: 6060004-10
4300 Sapphire Court, Suite 100
Prism Work Order: 6060004
Greenville, NC 27834
Sample Matrix: Water
Time Collected: 05/26/16 16:15
Time Submitted: 06/01/16 08:35
Parameter
Result
Units
Report
MDL
Dilution Method Analysis Analyst
Batch
Limit
Factor Date/Time
ID
Anions by Ion Chromatography
Chloride
660
mg/L
10
2.0
10 *300.0 613/16 11:17 EGC
P6F0094
Dissolved Metals
Iron
0.56
mg/L
0.10
0.020
1 *200.7 6/9116 19:43 bgm
P6F0189
Manganese
1.2
mg/L
0.010
0.0019
1 *200.7 619116 19:43 BGM
P6F0189
Total Metals
Iron
70 BH mg/L
0.10
0.020
1 `200.7 617/16 22:10 bgm
P6F0130
Manganese
1.6
mg/L
0.010
0.0019
1 `200.7 617/16 22:10 bgm
P6F0130
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories; Inc,
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0643
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 12 of 16

PService Analytical Environmental Solutions
R ISM
Level 11 QC Report
6/13/16
Groundwater Manage. Assoc.(GREE) Project: 158101 -Valhalla WTP Prism Work Order: 6060004
Attn: Katie Hackney Time Submitted: 6/1/2016 8:35:OOAM
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Total Metals - Quality Control
Reporting Spike Source %REC RPD
Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes
Batch P6F0130 - 200.7
Blank (P6F0130-BLK1)
Prepared & Analyzed: 06/07/16
Iron
BRL
0.10
mg/L
BH
Manganese
BRL
0.010
mg/L
LCS (P6F0130-BSI)
Prepared & Analyzed: 06/07/16
Iron
5.08
0.10
mg/L
5.000 102 85-115
Manganese
0.246
0.010
mg/L
0.2500 98 85-115
Batch P6F0179 - 200.7
Blank (P6F0179-BLK1)
Prepared & Analyzed: 06/09/16
Iron
BRL
0.10
mg/L
LCS (P6F0179-BS1)
Prepared & Analyzed: 06/09/16
Iron
5.23
0.10
mg/L
5.000 105 85-115
This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 13 Of 16

P M
Full-Service Analytical &
JEnvironmental Solutions
Ji[30C 0
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Dissolved Metals - Quality Control
Analyte
Project: 158101 -Valhalla WTP
Level 11 QC Report
6/13/16
Prism Work Order: 6060004
Time Submitted: 6/1/2016 8:35:OOAM
Reporting Spike Source %REC RPD
Result Limit Units Level Result %REC Limits RPD Limit Notes
Batch P6170189 - 200.7
Blank (P6F0189-BLK1)
Prepared & Analyzed: 06/09/16
Iron
BRL
0.10
mg/L
Manganese
BRL
0.010
mg/L
LCS (P6F0189-BSI)
Prepared & Analyzed: 06/09/16
Iron
5.06
0.10
mg/L
5.000 101
85-115
Manganese
0.250
0.010
mg1L
0.2500 100
85-115
Matrix Spike (P6F0189-MS1)_
Source: 6060004-01
Prepared & Analyzed: 06/09/16
Iron
5.43
0.10
mg/L
5.000 0.0920 107
70-130
Manganese
0.297
0.010
mg/L
0.2500 0.0384 104
70-130
Matrix Spike Dup (P6F0189-MSD1)
Source: 6060004-01
Prepared & Analyzed: 06/09/16
Iron
5.32
0.10
mg/L
5.000 0.0920 105
70-130 2 20
Manganese
0.289
0.010
mg/L
0.2500 0.0384 100
70-130 3 10
This report should not be reproduced. except in its entirety. without the written consent of Prism Laboratories, Inc.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0643
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 14 o 116

Level II QC Report
P /� Feu servloe Analyticalns
a 6/13/16
��/� Environmental Solutio
( ISs
Groundwater Manage. Assoc.(GREE) Project: 158101 -Valhalla WTP Prism Work Order: 6060004
Attn: Katie Hackney Time Submitted: 6/1/2016 8:35:OOAM
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Anions by Ion Chromatography - Quality Control
Reporting
Spike Source
%REC RPD
Analyte
Result
Limit Units
Level Result %REC
Limits RPD Limit Notes
Batch P6F0094 - NO PREP
Blank (P6F0094-BLK1)
Prepared & Analyzed: 06/02/16
Chloride
BRL
1.0 mg/L
LCS (P6F0094-BS1)
Prepared & Analyzed: 06/02/16
Chloride
41.3
1.0 mg/L
40.00 103
90-110
Matrix Spike (P6F0094-MS1)
Source:
6060004-02
Prepared & Analyzed: 06/02/16
Chloride
76.5
1.0 mg/L
40,00 29.9 117
90-110 M
Matrix Spike Dup (P6F0094-MSD1)
Source:
6060004-02
Prepared & Analyzed: 06/02/16
Chloride
75.7
1.0 mg/L
40.00 29.9 114
90-110 1 15 M
Sample Extraction Data
Prep Method: 200.7
Lab Number
Batch
Initial
Final
Date/Time
6060004-01
P61`0189
50
mL
50 mL
06/09/16 14:35
6060004-02
P61`0189
50
mL
50 mL
06/09/16 14:35
6060004-03
P61`0189
50
mL
50 mL
06/09/16 14:35
6060004-04
P6F0189
50
mL
50 mL
06/09/16 1435
6060004-05
P61`0189
50
mL
50 mL
06/09/16 14:35
6060004-06
P61`0189
50
mL
50 mL
06/09/16 1435
6060004-07
P61`0189
50
mL
50 mL
06/09/16 14:35
6060004-08
P61`0189
50
mL
50 mL
06/09/16 14:35
6060004-09
P61`0189
50
mL
50 mL
06/09/16 14:35
6060004-10
P61`0189
50
mL
50 mL
06/09/16 14:35
Prep Method: 200.7
Lab Number
Batch
Initial
Final
Date/Time
6060004-01
P61`0130
50
mL
50 mL
06/07/16 8:25
6060004-02
P61`0130
50
mL
50 mL
06/07/16 8.25
6060004-03
P61`0130
50
mL
50 mL
06/07/16 8:25
6060004-04
P61`0130
50
mL
50 mL
06/07/16 8:25
6060004-05
P61`0130
50
mL
50 mL
06/07/16 8:25
6060004-06
P6F0179
50
mL
50 mL
06/09/16 8:10
6060004-06
P61`0130
50
mL
50 mL
06/07/16 825
6060004-07
P6F0179
50
mL
50 mL
06/09/16 8:10
6060004-07
P6F0130
50
mL
50 mL
06/07/16 8:25
6060004-08
P61`0130
50
mL
50 mL
06/07/16 8:25
6060004-09
P6F0130
50
mL
50 mL
06/07/16 825
6060004-10
P61`0130
50
mL
50 mL
06/07/16 8:25
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1 CUSTODY RECORD
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PAGE OF - QUOTE # TO ENSURE PROPER BILLING: �;;a:r�i,' "'-
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i �� E eThem, C.• C,
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SAMPLE DESCRIPTION COLLECTED ✓ MILITARY
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— -
*TY
12
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Sampler's Signature ''"'(�=4% ' -I
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y
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4G1�4�
Date
y�•• q/�
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.- tS1CF11PLES ARE NOT ACCEPTED AND VERIFIED AGAINST COC UNT ECEIVED AT THE LABORATORY.
ed E ­Ci UPS pl Hand -delivered O Prism Field Service Other ,•� �; � •. ^ `"
N ES: UST: � GROUNDWATER: RINKING WATER: SOLID WASTE: RCRA: CERCLA LANDFILL OTHER:
❑NC❑SCI ❑NC ❑SC ❑NC ❑SC ❑NC C]SC FINC El SC ❑NC❑SCI ❑NC ❑SC El NC ❑SC❑NC El SC
❑ ❑ ❑ -- ❑— - —' ® ❑----' ❑---- — ❑ CI
*CONTAINER TYPE CODES: A = Amber C = Clear G= Glass P = Plastic; TL = Teflon -Lined Cap VOA = Volatile Organics Analysis (Zero Head Space)