NC0032719_Correspondence_20151218

GMA 7
Groundwater Management Associates, Inc.
December 18, 2015
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.qma-nc.com
Re: Initial Site Assessment
Valhalla Water Treatment Plant, 1608 Virginia Road, Edenton, Chowan County, North Carolina
NPDES Permit Number: NCO032719
Dear Mr. Tankard:
Enclosed is one copy of an Initial Site Assessment Report prepared by Groundwater Management
Associates, Inc. on behalf of Chowan County for the above referenced site. If you have any questions
or comments about the enclosed report, please do not hesitate to contact me at [phone].
Thank you.
Sincerely,
GMA
Lq-, 4,K
Katie T. Hackney, P.G.
Project Hydrogeologist
Enclosure: Initial Site Assessment Report
cc: Chowan County, Attn: Mr. Kevin Howard, County Manager
Z:\GMA\158101\ISA\ISACoverLetterNCDEQ.docx
The Groundwater Experts

RECEIVED/NCDENR/DWR
DEC 2 2 2015
Water Quality Regional
Operations Section
Washington Regional Office
INITIAL SITE ASSESSMENT
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:
Mr. Kevin Howard
Chowan County Manager
Post Office Box 1030
Edenton, North Carolina 27932
Telephone: [phone]
PREPARED BY:
Groundwater Management Associates, Inc.
4300 Sapphire Court, Suite 100
Greenville, North Carolina 27834
Telephone: [phone]
Facsimile: [phone]
December 18, 2015

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................................................................................................2
2.4 Wellhead Protection Areas...............................................................................2
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 Groundwater Sampling....................................................................................4
4.2 Field Measured Groundwater Parameters..........................................................4
5.0
CONCLUSIONS..................................................................................................4
6.0
RECOMMENDATIONS AND WORK PLAN.......................................................... 5
7.0
REFERENCES.....................................................................................................5
LIST OF FIGURES
1. Topographic Map
2. Properties Within 2000 Feet of the Site
3. Site Map
4. Equipotential Map
S. Proposed Groundwater Sample 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 Sampling Analytical Results
4. Summary of Groundwater Natural Attenuation Parameters
APPENDICIES
1. Copy of NCDWR Notice of Violation Dated October 6, 2015
2. Technical Methods and Standard Procedures
3. Copy of Analytical Report for Groundwater Samples

INITIAL SITE ASSESSMENT
1.0 GENERAL INFORMATION
1.1 SITE IDENTIFICATION
Date of Report: December 18, 2015 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; Attention 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). One groundwater sample was collected from a temporary monitoring
well installed by DWR staff to confirm that chloride concentrations above the 15A NCAC 2L
Groundwater Standards (Table 1). On November 18, 2014, the DWR issued a Notice of
Regulatory Requirements (NORR) directing assessment of the groundwater quality at the
compliance boundary for the water treatment plant (WTP). Based on review of the sampling
results from monitoring wells MW1 though MW3 installed by Chowan County on May 11, 2015,
NCDWR issued a Notice of Violation (NOV) on October 6, 2015 for the Valhalla WTP. The NOV
requires completion of site assessment activities and preparation of a Corrective Action Plan
(Appendix I).
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.

Initial Site Assessment
Chowan County Valhalla WTPJ
December 18, 2015 Page 2 of 5
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.
Katie T. Hackney, P.G.
Project Hydrogeologist
2.0 RECEPTOR INFORMATION
2.1 WATER -SUPPLY WELLS
.e��I► C A �' p
a SEAL ;.
A \� W
2101 �a : a
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 water -
supply 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, 314 feet deep, and has a screen from 304 feet to 314 below land surface
(BLS). Well WSW2 is currently offline and is reportedly 124 feet deep with a screen interval from
84 feet to 124 feet BLS. Chowan County plans to reactivate well WSW2 in 2016. Two inactive
irrigation wells are located 600 feet northwest (WSW4) and 1200 feet southwest (WSW6) of the
source area, respectively. One active irrigation well (WSW3) used for filling a swimming pool is
located 1200 feet to the northeast, and one active irrigation well located 650 feet southwest of
the source area is reportedly approximately 40 feet deep (Figure 2, Table 1).
2.2 PUBLIC WATER SUPPLIES
Potable water is provided throughout the survey area by Chowan County Water.
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.

Initial Site Assessment
Chowan County Valhalla WTP)
December 18, 2015 Page 3 of 5
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 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.
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
installation of three, 12-foot deep groundwater monitoring wells (MW1 through MW3). 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 shallow stratigraphy encountered at the site as reported on the well construction records is
sand to 13.0 feel BLS. However, the total thickness of the sandy, surficial aquifer is not known.
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, indicates that groundwater was flowing predominantly to the northwest along a hydraulic
gradient of 0.003 feet per foot (Figure 4). This gradient appears to generally correspond to the
topography of the area immediately around the monitoring wells. Groundwater in the surficial
aquifer generally migrates westward toward Bennett Millpond (Figure 1), which is approximately
24 feet lower in elevation than the site.

Initial Site Assessment
Chowan County Valhalla WTP)
December 18, 2015 Page 4 of 5
4.0 SAMPLING RESULTS
4. 1 GROUNDWATER SAMPLING
On November 12, 2015, groundwater samples were collected from the monitoring wells MW1
though MW3 and submitted to Prism Laboratories, Inc. for analysis of chloride, total manganese,
and total iron.
Analytical results (Table 3) indicated that chloride and iron concentrations in all the samples
exceeded the 15A NCAC 2L groundwater standards (2L groundwater standards). The manganese
concentrations in the monitoring well MW1 sample also exceeded the 2L groundwater standard.
A description of the groundwater sample collection procedures and field methods is provided as
Appendix II. A copy of the laboratory report and chain -of -custody form is included in Appendix
III.
4. 2 FIELD MEASURED GROUNDWATER PARAMETERS
On November 11, 2015, monitoring wells (MW1 though MW3) were also tested in the field for
dissolved oxygen (DO), specific conductivity, conductivity, temperature, pH, and oxidation-
reduction potential (ORP) 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 (especially MW1).
5.0 CONCLUSIONS
Elevated chloride concentrations were first discovered in the subsurface at the Valhalla WTP in
2014 by the NCDEQ, DWR. One groundwater sample collected from a temporary monitoring
well installed by DWR was analyzed and confirmed the presence of chloride above 2L
groundwater standards. On November 18, 2014, the DWR issued a NORR directing assessment
of the groundwater quality at the WTP compliance boundary. Based on review of the sampling
results for three permanent monitoring wells conducted by Chowan County Water staff, NCDWR
issued a NOV on October 6, 2015 for the Valhalla Water Treatment Plant. The NOV requires
completion of a site assessment and 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
sampling 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.
GMA completed a sensitive receptor survey within a radius of 2000 feet around the site to
identify property owners, water -supply wells, and other potential receptors. Public water is
provided throughout the survey area by Chowan County, and all occupied properties are
connected to county water.

Initial Site Assessment
Chowan County Valhalla WTPJ
December 18, 2015 Page 5 of 5
Six water -supply wells were identified within 2000 feet of the source area. Two water -supply
wells owned and operated by Chowan County Water (WSW1 and WSW2) are located 335 feet
northeast and 1600 feet northeast, respectively, of the source area. Well WSW1 is currently
active, and well WSW2 is currently inactive, but Chowan County plans to reactivate well WSW2
in 2016. Two inactive irrigation wells are located 600 feet northwest (WSW4) and 1200 feet
southwest (WSW6) of the source area, respectively. One active irrigation well (WSW3) used for
filling a pool is located 1200 feet to the northeast, and one active irrigation well is located 650
feet southwest of the source area.
Four surface water features were identified within the 2000 feet of the source area. Ponds are
located approximately 550 feet west, and approximately 800 feet west of the source area. A
tributary of Pollock Swamp is located approximately 1300 feet east of the source area. Bennett
Mill Pond is located approximately 1450 feet west of the source area (Figures 1 and 2).
6.0 RECOMMENDATIONS AND WORK PLAN
The results of this Initial Site Assessment have lead GMA to recommend the following for the
Valhalla Water Treatment Plant:
• Obtain written access agreements from surrounding property owners for surface water
and groundwater assessment.
• Install and sample temporary monitoring wells to determine locations and depths for
installation of future permanent monitoring wells as part of the Comprehensive Site
Assessment (estimated 15 temporary sample locations).
• Obtain necessary well construction permits for installation of permanent monitoring wells.
• Install permanent monitoring wells (estimated 11 total).
• Monitoring well data from an upgradient, offsite location will be used to establish
background concentrations for chloride, iron, and manganese.
• Conduct a comprehensive groundwater monitoring event that includes all monitoring
wells, area water -supply wells, and select surface water samples.
• Complete aquifer testing using select monitoring wells.
• Complete a Comprehensive Site Assessment (CSA) Report and required Public
Notification of the CSA Report.
7.0 REFERENCES
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.

FIGURES

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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
Figure 1

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LEGEND
® SITE CHURCH 2000 FOOT RADIUS GMA
® MUNICIPAL WSW —- — ROAD CENTERLINE PARCEL BOUNDARIES SCALE IN FEET
0 600'1�..._. ^.
NONPOTABLE WSW SURFACE WATER
File: DRAWINGS/158101/ PROPERTIES WITHIN 2000 FEET OF SITE Date: 12/15/2015
1500
Project No. 158101 VALHALLA WTP, EDENTON, CHOWAN COUNTY, NC Figure 2

® SITE --- ROADCENTERLINE GMA
MONITORING WELLS SURFACE WATER SCALE IN FEET
0 120'
COMPLIANCE BOUNDARY PARCEL BOUNDARIES
File: DRAWINGS/158101/ SITE MAP Date: 12/15/2015
SITE
Project No. 158101 VALHALLA WTP, EDENTON, CHOWAN COUNTY, NC Figure 3

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GENERAL NOTES:
1. CONTOUR INTERVAL= 0.50 FEET
2. ARROW INDICATES DIRECTIONS OF GROUNDWATER FLOW
3. ISOTROPIC CONDITIONS ARE ASSUMED
4. WATER LEVEL ELEVATIONS ARE POSTED BY EACH WELL
5. (I INDICATES DATA NOT USED
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PARCEL BOUNDARIES �---`�
File: DRAWINGS/158101/ EQUIPOTENTIAL MAP Date.- 12/15/2015
EQUIPOTENTIAL
Project No. 158101 VALHALLA WTP, EDENTON, CHOWAN COUNTY, NC Figure 4

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® MUNICIPAL WSW SURFACE WATER
File: DRAWINGS/158101/ PROPOSED GROUNDWATER SAMPLE LOCATIONS Date: 12/15/2015
PROPMW
Project No. 158101 VALHALLA WTP, EDENTON, CHOWAN COUNTY, NC Figure 5

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 Address
Property Owner's
Telephone
Well Status
Well ID
Water
Distance &
Direction
Property
Name
Address
Service
from Site*
Description
1
689700290354
Chowan County
1608 Virginia Road
Post Office Box 1030
252-482-7447
municiple, active
WSWI
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 (Thomas
no
yes
250' N
County water
Edenton, NC 27932
Edenton, NC 27932
Bulls)
treatment plant
4
689700298434
Chowan County
Off Coffield Road
Post Office Box 1030
252 482 7447
no
no
430' E
undeveloped cleared
Edenton, NC 27932
land
West Byrum, Jr. and
123 Pembroke Circle
252-482-4068
5
689700282038
wife Hattie
Off Virginia Road
Edenton, NC 27932
252-333-0063 (Ginger
no
no
600' SE
farmland
Vogedes)
6
689700189746
West Byrum, Jr. and
1528 Virginia Road
123 Pembroke Circle
252-482-4068
252-333-0063 (Ginger
no
no
400' S
farmland
wife Hattie
Edenton, NC 27932
Edenton, NC 27932
Vogedes)
7
689700184985
Linda G.Bunch
1541 Virginia Road
1541 Virginia Road
252-221-4151(work #)
no, per neighbor
yes
520' SW
house
Edenton, NC 27932
Edenton, NC 27932
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 Virginia Road
252-482-3082
252-333-5215 (Marsha
inactive irrigation
WSW4
yes
600' NW
acreage with barn,
Gregory (daughter)
Edenton, NC 27932
Edenton, NC 27932
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
p
Property Address
Property Owner's
P
Telephone
Well Status
Well ID
Water
Distance &
Direction
Property
Name
dd
Address
Service
Description
from it *
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 (Clark
no (yes per
wooded acreage +
Edenton, NC 27932
Newport, NC 28570
and Joyce)
no
Mrs. Wylde)
1150' NW
modular home closer
to 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 Ashley
1646 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
y y
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
Edenton, NC 27932
Cleveland, NC 27013
Byrum III, renter)
no
yes
500' N
house
23
689800217017
Gertrude Faye Ashley110
y
Coffield Road
1646 Virginia Road
252-562-4706
no
no
1530' NE
wooded
Edenton, NC 27932
Edenton, NC 27932
(Ed Ashley Jr.)
acreage
24
689800300577
Chowan County
122 Coffield Road
Post Office Box 1030
252 482 7447
municiple, inactive
yySW2
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
=ye,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
Properly Owner's
Telephone
Well Status
Well ID
Water
Distance &Property
Direction
Name
Address
Service
Description
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)
no
no
980' E
vacant lot
Richardson
Edenton, NC 27932
Edenton, NC 27932
252-482-8767 (Brandi)
West Byrum, Jr. and
200 Coffield Road
123 Pembroke Circle
252-482-4068
29
689700389906
wife Hattie
Edenton, NC 27932
Edenton, NC 27932
252-333-0063 (Ginger
no
no
1650' E
wooded acreage
Vogedes)
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
Curtis and Barbara
108 Warren Grove
302 Mexico Road
252-482-3077
wood and farmland
31
689700275313
Twine
Road Edenton, NC
Edenton, NC 27932
919-212-2817
no
no
1450' SE
acreage
27932
Geraldine W Wilson,
116 Warren Grove116
Warren Grove Road
252-482-8125
32
689700271764
Trustee
Road Edenton, NC
Edenton, NC 27932
(James Wilson)
no
yes
1550' SE
house
27932
West Byrum, Jr. and
1511 Virginia Road
123 Pembroke Circle
252-482-4068
wood and farmland
33
689700170689
wife Hattie
Edenton, NC 27932
Edenton, NC 27932
252-333-0063 (Ginger
no
no
1270' S
acreage
Vogedes)
Ray and Teresa
1531 Virginia Road
1531 Virginia Road
34
689700182472
Bateman
Edenton, NC 27932
Edenton, NC 27932
252-482-8987
inactive irrigation
9
WSW6
yes
1200' SW
house and shop
West Byrum, Jr. and
123 Pembroke Circle
252-482-4068
wood and farmland
35
689700083880
wife Hattie
Off Virginia Road
Edenton, NC 27932
252-333-0063 (Ginger
no
no
700' W
acreage
Vogedes)
1537 Virginia Road
252-482-8538
36
689700184732
Thomas Birckhead
1537 Virginia Road
252-333-7461 (Thomas
no
yes
750' SW
house
Edenton, NC 27932
cell)
Thomas and Susan
1537 Virginia Road
252-482-8538
active irrigation
37
689700184856
Birckhead
1539 Virginia Road
Edenton, NC 27932
252-333-7461 (Thomas
(approx 40' deep)
WSW5
yes
650' SW
art studio
cell)
* 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
Well ID
Date
Well
Depth
Interval
of Well
Elevation
Stickup
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 Sampling Analytical Results
Valhalla WTP Edenton, Chowan County
Well ID
Date Collected
Chloride
Iron
Manganese
MW1
5/26/2015
3,200
1,963
1,929
7/10/2015
3,350
2,650
1,301
11/12/2015
4,800
4,600
6,600
MW2
5/26/2015
1,110
484
31
7/10/2015
1,000
446
33
11/12/2015
460
340
29
MW3
5/26/2015
918
1,001
37
7/10/2015
1,200
2,632
64
11 12 2015 11
1,000
1 700
48
201215A NCAC
2L Std, u /L
250 m /L
I 300u_qlL 1
50 u /L
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

Table 4. Summary of Groundwater Natural Attenuation Parameters
Valhalla WTP Edenton, Chowan County
Well
Sample
DO
Specific
Conduc-
Conduc-
ORP
Number
Date
aturTemper-
(mg/L)
tivity
tS/c
pH
(mV)
(0c)
(°C)
(MS/cm)
MW1
11/12/2015
21.9
0.69
13,466
12,669
6.60
30.0
MW2
11/12/2015
19.5
0.75
1887
1688
6.69
-26.0
MW3
11/12/2015
18.4
0.36
3579
3136
6.11
18.6

APPENDIX I
COPY OF NCDWR NOTICE OF VIOLATION DATED OCTOBER 6, 2015

",
North Carolina Department of Environmental Quality
Pat McCrory Donald R. van der Vaart
Governor Secretary
October 6, 2015
CERTIFIED MAIL 7015 0640 0007 23.58 9885
RETURN RECEIPT RERESTI+'.I)
Mr. Kevin Howard, County Manager
County of Chowan.
PO Box 1030
Edenton, North Carolina 27932
Subject: Notice of Violation and Recommeuidn ion Action
NOV-2015-G W-0001
Groundwater Quality Violations
Vahalla Water'freatment Plant
NPDES Permit No. NCO032719
Chowan County, North Carolina
Dear Mr. Howard:
The North Carolina Division of Water Resources issued Permit No. NC0032719 on December
6, 2013 to Chowan County for the continued operation of the above referenced facility. On October
1, 2105 the Washington Regional Office received a copy of a groundwater monitoring report
documenting the results of sampling conducted at the above referenced facility's compliance
boundary, as required by the Notice of Regulatory Requirements (NORR) issued to Chowan County
by the Washington Regional Office on November 1.8, 2014..Based upon groundwater samples
collected on May 26, 2014 and July 10, 2015, the Division of Water Resources has reason to believe
that the above referenced facility in violation of the North Carolina Groundwater Quality Standards
found in 15A NCAC 21, 0.202. This Notice is to formally notify you of violations of North Carolina
Groundwater Quality Standards and to advise you of what you are required to do to correct these
violations.
Division of Water Resources - Water Quality Regional Operations Section -
Washington Regional Office
943 Washington Square Mall, Washington, NC 27889
Phone: [phone] \ Fax: [phone]\ Internet: www.ncdenr.gov
An Equal opportunity i Alfirmalivo Action Employer - Made in part by recycled paper

t
Mr. I<evin Howard
October 6, 2015
Page 2 oi'4
Violations to the Grouch+ paler Qualily SIanclur•clti• (21) clelec lc (l (it the suhjec•t /ircilily
include, but are not lirnilecl to the lbllolvitlo.
.n�luent ci'rrr�rp/c I)ulr Cunccntrulrr�ir �l cslurrrluri%_
I� r''h orrde T 7// J .V2Gll 32no nr177. 230 Ing.. 11
Iron
1!1
.5/0/15
l963 fig/l.
300 rrfI
Manganese
!! I
5/ 2(// 5
/ 929 uglL
50 a /L
Chloride
'i '
>/261/.5
1 / l0 al,Vl,
250 rng1l,
lr r,n
'!:>
5120 15
5�20/15
/84 rrs;/l.
9/8 rrrg/l,
Sou rrf;//,
250 rng1l,
Chloride
Iron
113
5126115
101 / 1I'VL
rn;/l,
.300
- — -- --
Chlor•icle
-- ---- -..
!1 /
_ _ _..__..._-----
711011.5
---—
3350 rng1l.
2,50 rn 1l,
Iron
fi 1
711011.5
2650 ugll"
300 l/g/I"
Manganese
111
7//U;"IS
1301 rr�;/l.
SU lrl;//,
Chloricle
112
7/10%/j
1000 lnv/l.
2.50 rn 1l,
Iron
112
7110115 -
446 ug/l,
300 l.NO,
C'lrl—or i—he
1!3
7/10/l5
1200 rrrg/l.
250 Ing/l,
Irorr
113 _—_
7/I0/15---------2632
al,s;/l,
— 300 !!r;// ----
Manganese
113 — —
7// 0// 5
-- 6-1 ug1l. — -
50 ug/l,
Permit No. NC0032719 was originally issued on January 5, 1983. As described in 1.5A NCAC
21, .0106(c), because Permit No. NCO032719 was issued before 1)eccn+ber 30, 1983, the subject
llicilit.y is subject to the applia:+ble provisions in 15A NCAC 21, .0106(e) and Chowan County is
rccluircd to take the following <+clions to Mddress tl-+e g+-ou)I(Iwater cont�.uriination al the subject facility:

Mr. Kevin Howard
October 6, 2015
Page 3 of 4-
Ta.l:c imnacdi;_ltc action tO cliluillate 111e soul -cc or Sources oFcontalllinatiorl;
2. Sublllil a site ISSCSSnlcnl. report (o the Wa�;hing;ton Retjonal Office assessing) the cause,
Ognif iaulue and extent or the violalbn; and
3. Impimmenl an alllinwed corrective Action plan, as per the requirements or 15A NCAC 21,
.0107(I), Ior restoration ol'groundwatcr glialily in acre rdancc with a. schedule established
by the I )hector, or his designee. In establishing a schedLllc the Director, or his dcsignec
Shull consider any reasolx:Lbic schedule proposccl by Illc person subnlitting the plan. A
report shall he Illade to the I le-alth I)irector of' thecounty or couli ics in which the
contamination occurs in accordance with the requirements of' 15A NC'A(' 21, .01 Id(:I).
Please note that. the site asscssnlellt rcc:luired by 15A NCAC' 21, .0106(g), and conducted
I:)Ln•suant to requirements of 15A NCAC 21, .0106(c), shall include (he Fclllowing:
]'Ile SOLII-Ce and CaLISC OI COIlta1111llalloll;
2. Any imminent hazards to pul- lic health and safely and actions taken to militate lhclll in
accordance with 151, NCAC 21, .01 M(I);
3. /1.11 receptors and significant exposure pathways;
4. "l'hc horizontal and vertical extent of soil and groundwater collf,alllination and all
SIfa11111CiUll factors allectillg Contaminant transport.; all(]
5. Geological and hydrogcological Fcatw•es infiucncing the movernent, chemical, and
physical character oFthe contaminants.
Tlie Site Assessment must he COMILIGI-M under the supervision ofa Professional Linginecr (C'.t..)
or fAcensed GeWogisi (f,.O.). '111e subsequent report. Il1nS( be signed and scaled by a PJL,. or LAI. For
informat.loll on available -consultants and enWnec;rs, you may contact the Consulting Engincers
Council of North C:.arolina at (919) 781 -7934, or the I'Wh Carolina Board For Liucnsing ofGcologist
.01 [phone], or To AM Carolina NtrOIClllll Marketers Association at. (919) 782-441 1.
A WelI C:.onstrucdon Permit. is required to construct any monitoring well on property other than
(hat On Wh.ICh 1.11C Lllll:)CrI1nitied activity tool: place. A II wells must be installed by <a well ddiller certified
by the North Carolina Well Contractors Certification Commission

VIr. l`evin I Io\-varcl
Ownber 6, 2015
FourSite Asscsst11et1t 11111st sul)1ltittc(1 t() the Kegion)11 f)i'1'ice for
review wit hitl ninrtv 9f)�la o[' reccivitlg tllrw Nutice. Failure to si.ibmi( the required reports or
Hurt: t: to eapedidously climinale the contanair(a nt source and restore fromm dwaalet- quality in the
af(c.acd area nvV result in Me reconunendation of enlitr(,.enacral acliora. Fiaaes may be imposed under
NCGS 143015AA(a)(1) of not more than $21000 per vie NHon of any claassitication, staamblal,
limitation or management luactice established pursuaual. to G.S. 143-214.1. Additional action naay
inclladc 111e issuance of a sl?ccial order agAnsl you under the authority ofGA. 143-215.2; or a request.
to the Attorney General to institute an actimi for alunclive relief. Ifaray failt.tre to acf is c011611.lous,
penalties rraay be assessed not to exceed a rnaainauna penalty =10,000 per day per violation under
\t:.'(T 143-21 5AAOQ so long as the violation continue.:;.
;1s at result ()t' the �c�iuia Hons desm il)ed in this Notice this ofl•ico tv cot)sidctill � it
---- __ . - - - — —YIL .
__. ._...
r: t lcnd,ttit>n 1(,r :l caVtl 3ictt:►lf>> :��;was;tlic_tI to tlrc 6*il.-cc_tor- of fhe 1 jvisign. We request. Ih(It
),oil respond to this Notice within ten (10) days Wn its receipt. In your msNonsc, plcasc coiAkra
Chowan County's intent to coimdy k illa the aahove requirements by specify4y the actions you Q1
to undertake to correct the violations and by sulnaailtiaal" a proposed Schedule I61- atccoalaplishing Il)ese
acoo ns.
lf'yau h,'AVC any (.11a0,stions rc,,paarc:ling this Notice or need additional infc)ranaation, you inaty cOniaict
Rob ri. Tankard at (252) 948- 3921 or Randy Sipc at (252) 9-18-`W1 .
Sinccrel y,
Robert Tnnk,ard, Assistant I- Wgional Supervisor
Water Quality Regional (.)peraations Section
Division of Water llesourccs,
cc (Towaan Ch3unty I leaalth Dcpartmem
Water Quality I:eghmal Operaations Section (Central Files
Wa I.:O
it l :!d -s

APPENDIX II
TECHINCAL METHODS AND STANDARD PROCEEDURES

TECHNICAL METHODS AND STANDARD PROCEDURES
I. WATER -LEVEL MEASUREMENTS
Depth to water within the monitoring wells was measured with an electronic water level meter
that is accurate to within 0.01 feet. Standard practice is to measure the water level soon after
the well plug is removed, and then re -measure the water level after an adequate period of time
has elapsed and the water level has equilibrated. If consecutive measurements do not correspond
to within 0.01 feet, it is standard practice to continue collecting water -level measurements until
equilibration has occurred.
II. WELL PURGING AND COLLECTION OF GROUNDWATER SAMPLES
The monitoring wells were purged of three well volumes prior to groundwater sampling using
either a new disposable bailer and new vinyl rope, a peristaltic pump with new disposable
polyethylene tubing, or a decontaminated purge pump with new disposable polyethylene
tubing. New disposable nitrile gloves were worn during the purging and sampling of each well.
The groundwater samples were collected immediately after purging in order to minimize
turbidity in the samples.
Groundwater samples were transferred to 500 milliliter, plastic jars with Teflon®- lined lids.
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 SAMPLES

Full -Service Analytical &D�V Environmental Solutions
LABORATORIES,
Groundwater Manage. Assoc.(GREE)
Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
NC Certification No. 402
SC Certification No. 99012
NC Drinking Water Cert No. 37735
VA Certification No. 460211
DoD ELAP: L-A-B Accredited Certificate No. L2307
ISO/IEC 17025: L-A-B Accredited Certificate No. L2307
Project: 158101 -Valhalla WTP
Lab Submittal Date: 11/17/2015
Prism Work Order: 5110345
Case Narrative
12/03/2015
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.
6 /1
�'J
Angela D. Overcash
VP Laboratory Services
Data Qualifiers Key Reference:
Reviewed By Robbi A. Jones For Angela D. Overcash
President/Project Manager
B Analyte is found in the associated blank at a concentration >1/2 RL.
BH MB greater than one half of the RL, but the sample concentrations are greater than 10x the MB.
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: 1-800/629-6364 - Fax: [phone] Page 1 of 9

'P R I S M I Full -Service analytical s
Environmental Solutions
... �neoAnroa
Sample Receipt Summary
12/03/2015
Prism Work Order: 5110345
Client Sample ID
Lab Sample ID
Matrix
Date Sampled
Date Received
MW1
5110345-01
Water
11/12/15
11/17/15
MW2
5110345-02
Water
11/12/15
11/17/15
MW3
5110345-03
Water
11/12/15
11/17/15
Samples were received in good condition at 2.3 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 28224-0643
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 2 of 9

Group #3 Name
Summary of Detections
PRISM
I
Full -Service Analytical 8
/
Environmental Solutions
12/03/2015
LABORATORIES,
INC,
Prism Work Order: 5110345
Prism ID
Client ID
Parameter
General Method
Method Result Units
5110345-01
MW1
Chloride
Anions by Ion Chromatography
300.0 4800 mg/L
5110345-01
MW1
Iron
Total Metals
*200.7 4.6 mg/L
5110345-01
MW1
Manganese
Total Metals
*200.7 6.6 BH, mg/L
B
5110345-02
MW2
Chloride
Anions by Ion Chromatography
*300.0 430 mg/L
5110345-02
MW2
Iron
Total Metals
*200.7 0.34 mg/L
5110345-02
MW2
Manganese
Total Metals
*200.7 0.029 mg/L
5110345-03
MW3
Chloride
Anions by Ion Chromatography
*300.0 1000 mg/L
5110345-03
MW3
Iron
Total Metals
*200.7 1.7 mg/L
5110345-03
MW3
Manganese
Total Metals
*200.7 0.048 mg/L
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 9

/PRISM I Full -Service Analytical sEnvironmental SolutionsIBR
Laboratory Report
12/03/2015
Groundwater Manage. Assoc.(GREE)
Project: 158101 - Valhalla WTP
Client Sample ID: MW1
Attn: Katie Hackney
Prism Sample ID: 5110345-01
4300 Sapphire Court, Suite 100
Prism Work Order: 5110345
Greenville, NC 27834
Sample Matrix: Water
Time Collected: 11/12/15 12:00
Time Submitted: 11/17/15 09:05
Parameter
Result Units
Report
MDL Dilution Method Analysis Analyst
Batch
Limit
Factor Date/Time
ID
Anions by Ion Chromatography
Chloride
4800 mg/L
100
7.8 100 `300.0 11120115 9:02 CDE
P51(0474
Total Metals
Iron
4.6 mg/L
0.10
0.020 1 *200.7 11/25/16 20:57 BGM
P51(0516
Manganese
6.6 BH, B mg/L
0.010
0.0019 1 *200.7 11/26/16 20:67 BGM
P51<0516
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 4 of 9

Full -Service Analytical /PRISM I Environmental Solutions
nBOR
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Project: 158101 -Valhalla WTP
Sample Matrix: Water
Laboratory Report
12/03/2015
Client Sample ID: MW2
Prism Sample ID: 5110345-02
Prism Work Order: 5110345
Time Collected: 11/12/15 12:45
Time Submitted: 11/17/15 09:05
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
430
mg/L
100
7.8
100
*300.0
11/20/16 9:19 CDE
P51<0474
Total Metals
Iron
0.34
mg/L
0.10
0.020
1
*200.7
11/26/15 21:06 BGM
P5K0516
Manganese
0.029
mg/L
0.010
0.0019
1
*200,7
12/2/15 12:01 BGM
PSL0004
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 5 of 9

j P R ISM n8FIE$tNC. Full-Servicevice Analytical
Environmental Solutions
- L
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Project: 158101 -Valhalla WTP
Sample Matrix: Water
Laboratory Report
12/03/2015
Client Sample ID: MW3
Prism Sample ID: 5110345-03
Prism Work Order: 5110345
Time Collected: 11/12/15 11:00
Time Submitted: 11/17/15 09:05
Parameter
Result
Units
Report
MDL
Dilution
Method
Analysis Analyst
Batch
Limit
Factor
Date/Time
ID
Anions by Ion Chromatography
Chloride
1000
mg/L
100
7.8
100
`300.0
11/20/15 9:36 CDE
P6K0474
Total Metals
Iron
1.7
mg/L
0.10
0.020
1
*200.7
11/26/15 21:14 BGM
P5K0516
Manganese
0.048
mg/L
0.010
0.0019
1
*200.7
12/2/15 12:26 BGM
P61-0004
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 9

/PRISM I Full -Service Analytical 8
Environmental Solutions
nf3R
Groundwater Manage. Assoc.(GREE)
Attn: Katie Hackney
4300 Sapphire Court, Suite 100
Greenville, NC 27834
Total Metals - Quality Control
Analyte
Project: 158101 - Valhalla WTP
Level II QC Report
12/3/15
Prism Work Order: 5110345
Time Submitted: 11/17/2015 9:05:OOAM
Reporting Spike Source %REC RPD
Result Limit Units Level Result %REC Limits RPD Limit Notes
Batch P51K0516 - 200.7
Blank (P5K0516-BLKI)
Prepared & Analyzed: 11/25/15
Iron
BRL
0.10
mg/L
Manganese
0.0239
0.010
mg/L
BH
LCS (P5K0516-BSI)
Prepared & Analyzed: 11/25/15
Iron
4.87
0.10
mg/L
5.000 97 85-115
Manganese
0.286
0.010
mg/L
0.2500 115 85-115 B
Batch P5L0004 - 200.7
Blank (P51-0004-BLK1)
Prepared: 12/01/15 Analyzed: 12/02/15
Manganese
BRL
0.010
mg/L
LCS (P5L0004-BS1)
Prepared: 12/01/15 Analyzed: 12/02/15
Manganese
0.240
0.010
mg/L
0.2500 96 85-115
Matrix Spike (P51-0004-MS1)
Source: 6110345-02
Prepared: 12/01/15 Analyzed: 12/02/15
Manganese
0.270
0.010
mg/L
0.2500 0.0289 97 70-130
Matrix Spike Dup (P5L0004-MSDI)
Source: 5110345-02
Prepared: 12/01/15 Analyzed: 12/02/15
Manganese
0.265
0.010
mg/L
0.2500 0.0289 95 70-130 2 20
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 7 of 9

SM � Pull -Service Analytical Environmental Solutions
LneOR4TOR -, INC,
Level 11 QC Report
12/3/ 15
Groundwater Manage. Assoc.(GREE) Project: 158101 -Valhalla WTP Prism Work Order: 5110345
Attn: Katie Hackney Time Submitted: 11/17/2015 9:05: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 PSK0474 - NO PREP
Blank (P6K0474-BLK1)
Prepared & Analyzed: 11/19/15
Chloride
BRL 1.0 mg/L
Blank (P5K0474-BLK2)
Prepared: 11/23/15 Analyzed: 11/24/15
Chloride
BRL 1.0 mg/L
LCS (P5K0474-BS1)
Prepared & Analyzed: 11/19/15
Chloride
41.5 1.0 mg/L
40.00 104 90-110
LCS (P5K0474-BS2)
Prepared & Analyzed: 11/20/15
Chloride
41.9 1.0 mg/L
40.00 105 90-110
Sample Extraction Data
Prep Method: 200.7
Lab Number Batch Initial Final Date/Time
5110345-01
P51<0516
50
mL
50 mL
11/25/15
7:30
5110345-02
P51-0004
50
mL
50 mL
12/01/15
8:05
5110345-02
P51<0516
50
mL
50 mL
11/25/15
7:30
5110345-03
P51_0004
50
mL
50 mL
12/01/15
8:05
5110345-03
P51<0516
50
mL
50 mL
11/25/15
7:30
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 8 of 9

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7. 1 equested Due Date ❑ 1 Day ❑ 2 Days ❑ 3 Days ❑ 4 Days ❑ 5 Days Certification: NELAC USACE FL NC
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Site Location Name: A�`>`—�aZ��!
Samples received after 15:00 will b processed next business day.
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Site Location Physical Address: _
Turnaround time is based on business days, excluding weekends and holidays. Water Chlorinated: YES_ NO
{SEE REVERSE TERMS & CONDITIONS REGARDING SERVICES
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RENDERED BY PRISM LABORATORIES, INC. TO CLIENT)
LAB
Sari) le Iced Upon Collection: YES NO
Sample P
CLIENT
DATE
TIME
COLLECTED
MATRIX
(SOIL,
SAMPLE CONTAINER
PRESERVA-
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PRISM
LAB
"TYPE
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Sampler's Signature x`' Sampled By (Print Name) ` 1_1 ;;; Affiliation
Upon relinquishing, this Chain of Custody is yo r authorization for Prism to proceed with the analyses as requested above. Any changes must be
submitked 'i o writing to the Prism Project Manager. There will be charges for any changes after analyses have been initialized.
Relinqws d B (Iignatur Receiv y: (Signature) Date Militai
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SAMPLES ARE NOT ACCEPTED AND VERIFIED AGAINST COG UNTIL RECEPED AT THE LABORATORY. I ri
❑ �❑ ❑
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NPD:/ ; UST: GROUNDWATER: RINKINC WATER: 1 SOLID WASTE: RCRA: CERCLA LANDFILL OTHER:
❑ NO ❑ SCI ❑ NO ❑ SC ❑ NO ❑ SC ❑ NC Li SO ❑ NC ❑ SC ❑ NC ❑ SC ❑ NO ❑ SC ❑ NO ❑ SC ❑ NO ❑ SC
*CONTAINER TYPE CODES: A = Amber C = Clear G = Glass P = Plastic; TL = Teflon -Lined Cap VOA = Volatile Organics Analysis (Zero Head Space)
Additional Comments: 1
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