WQ0023896_Annual Report_20210225

-9W T INSTITUTIONAL INTEGRITY AND RISK MANAGEMENT
1 Environment, Health and Safety
February 25, 2021
Information Processing Unit
North Carolina Department of Environmental Quality
Division of Water Quality
1617 Mail Service Center
Raleigh NC 27699-1617
The University of North Carolina at Chapel Hill
Department of Environment, Health and Safety
1120 Estes Drive, CB# 1650
Chapel Hill, North Carolina 27599-1650
Subj ect: 2020 Annual Report
The University of North Carolina at Chapel Hill — Bingham Facility
Orange County, North Carolina
Permit No. WQ0023896
Dear Sir or Madam:
In accordance with the requirements of the subject permit, as specified in condition IV.14, please
find below an annual report summarizing the performance of the wastewater treatment plant
(WWTP) and drip irrigation system at The University of North Carolina at Chapel Hill's Bingham
Facility.
An electronic copy of this report has also been sent to Scott Vinson of the North Carolina
Department of Environmental Quality (NC DEQ) Raleigh Regional Office and Nathaniel
Thornburg of the DEQ Non -Discharge Branch.
Summary Description of Wastewater Treatment System
The wastewater treatment system provides secondary treatment for a permitted capacity of 3,556
gallons per day (GPD) of domestic wastewater generated from the three existing animal care
buildings at the Bingham Facility. Wastewater is conveyed to the AdvanTex secondary wastewater
treatment system via a gravity sewer collection system. The AdvanTex secondary wastewater
treatment system consists of an 8,000 gallon domestic wastewater septic tank, a 20 gallons per
minute (GPM) septic tank effluent pump station, and a 4,000 gallon AdvanTex recirculation tank
with two 55 GPM pumps to recirculate wastewater through the two AdvanTex textile media
wastewater treatment filter pods. Treated effluent from the Advantex system flows through a
chlorine contact tank with sodium hypochlorite injection for disinfection, an ultrasonic flow
monitoring system, and a duplex 80 GPM secondary effluent pump station to pump treated
wastewater to the 1,122,440 gallon clay -lined wet weather storage basin. A 75,843 gallon clay -
lined effluent storage basin is provided at the effluent pump station for secondary storage of
effluent. The wet weather storage basin includes a duplex 150 GPM irrigation pump station to
convey treated effluent to one of four drip irrigation zones for tertiary treatment in the soils via
uptake by the grass, trees, and shrubs in the drip irrigation fields and dispersal into the surficial
aquifer.

UNC Bingham Facility Wastewater Treatment Plant
2020 Annual Report
Page 2
Permit Item IV.14.a. — Permit Limits and Exceedances
WWTP Effluent
Table 1 lists WWTP effluent limits established by the permit and the number of exceedances
identified in 2020.
Table 1— WWTP Effluent Permit Limits and Number of Exceedances
Parameter
Monthly Avg.
No. of Permit
Limit
Exceedances
Flow, GPD
3,556
0
Biochemical Oxygen
30
0
Demand (BOD), m /l
Ammonia, m /l
15
0
Total Suspended Solids
30
0
TSS , m /l
Fecal Coliform, 9/100
200/100 ml *
0
ml
* Monthly Geometric Mean
Surface Water Monitoring
Analytical results of the two surface water sampling events in 2020 are included as Exhibit 1. The
NC DEQ permit for the facility does not specify limits for the parameters measured; therefore, no
exceedances were identified in 2020. Surface water quality standards are established in 15A
NCAC 2B (213), and no exceedances of the 2B standards were identified in 2020.
Land Application
Table 2 is a summary of the land application limits and the number of permit exceedances
identified in 2020.
Table 2 — Land Application Limits and Number of Exceedances
Irrigation
Field
Hourly Rate
Limit (in.)
Yearly
Maximum
in.
No. of
Exceedances
1
0.22
10.92
0
2
0.22
10.92
0
3
0.22
10.92
0
4
0.22
10.92
0

UNC Bingham Facility Wastewater Treatment Plant
2020 Annual Report
Page 3
Groundwater Monitoring
Analytical results of the four ground water sampling events in 2020 are included as Exhibit 2.
Groundwater quality limits established by the NC DEQ permit for the facility, groundwater quality
standards established by 15A NCAC 2L, and exceedances identified in 2020 are shown in Tables
3 and 4.
Table 3 — Groundwater Quality Limits and Number of Exceedances
Parameter
Permit
Limit
2L
Limit
MW-1
MW-3
MW-4
MW-5
MW-6
TOC, mg/l
10
-
0
0
0
0
0
Chloride
m g/l
250
250
0
0
0
0
0
Coliform
#/100 ml
-
1/100 ml
0
1
2
0
0
Ammonia,
m g/l
1.5
1.5
0
0
0
0
0
Nitrate, mg/l
10
10
0
0
0
0
0
pH, units
6.5-8.5
6.5-8.5
4
1 4
2
0
0
Phosphorus
-
-
0
0
0
0
0
TDS, mg/l
500
-
0
0
0
0
0
VOC
Yes / No
-
No
No
No
No
No
Table 4 — Recorded Groundwater Quality Exceedances
Location
Parameter
Limit
Measured
Value
Date
MW-1
pH
6.5-8.5
5.9 units
3/13/20
MW-1
pH
6.5-8.5
6.0 units
6/12/20
MW-1
pH
6.5-8.5
6.0 units
9/10/20
MW-1
pH
6.5-8.5
6.2 units
12/3/20
MW-3
pH
6.5-8.5
5.6 units
3/13/20
MW-3
pH
6.5-8.5
5.7 units
6/12/20
MW-3
pH
6.5-8.5
5.8 units
9/10/20
MW-3
pH
6.5-8.5
6.3 units
12/3/20
MW-3
Coliform
1/100 ml
12/100 ml
6/12/20
MW-4
pH
6.5-8.5
5.7 units
3/13/20
MW-4
pH
6.5-8.5
5.6 units
6/12/20
MW-4
Coliform
1/100 ml
11/100 ml
6/12/20
MW-4
Coliform
1/100 ml
3/100 ml
9/10/20

UNC Bingham Facility Wastewater Treatment Plant
2020 Annual Report
Page 4
Monitoring wells MW-3 and MW-4 have had groundwater quality exceedances for both pH and
coliform since the wells were first sampled in 2014, and it is unlikely that the exceedances are
attributed to drip irrigation at the facility. Additionally, MW-4 is located upgradient of the
irrigation fields.
Permit Item IV.14.b. — Irrigation Meter Calibration
Bingham Facility flow meter calibration was completed on September 3, 2020 by Clearwater, Inc.
Results of the calibrations are included as Exhibit 3.
Permit Item IV.14.c. — Residuals
On July 28, 2020, 4,000 gallons of septage were removed from the AdvanTex recirculating tank.
The removal was completed by Septics-R-Us under Septage Management Firm permit number
NCS-01489. Documentation regarding the septage removal is included as Exhibit 4.
Permit Item IV.14.d. — Soil Analysis
Attached as Exhibit 5 is a copy of the soil fertility analysis of representative soil samples taken
from the four drip irrigation fields. The results of the analysis generally indicate low levels of
nitrogen and phosphorus in the soil to support indigenous vegetation in the drip fields. Wastewater
irrigation to the site will improve soil fertility by providing additional nitrogen and phosphorus
nutrients to the soil.
Permit Item IV.14.e. — Priority Pollutant Analysis
A copy of the NC DEQ priority pollutant scan is attached as Exhibit 6. The priority pollutant
analyses identified low concentrations of dimethylphthalate, chlorine, hardness, total dissolved
solids, phosphorus, and nitrate. These results are within normal ranges for treated wastewater.
If you have any questions or require additional information, please contact me at 919.962.6666.
Sincerely
pe3�
CARD;
��` �0000`C�I17��%ooOYP" APB
p O O p
J. aurence Daw, L.G. m SEAL
vironmental Compliance Officer Geophysicist Licensed Geologist LZ��11Q16
o � o
Attachments e 11 I^\�'
RE
B�ca�BCQQ6C `9�040�

Exhibit 1
2020 Surface Water
Sampling Results

Environmental Chemists, Inc.
6602 WilIAMi!] Noy, WilMington, NCE 28405 0 910392,0223 Lab 11 910.392,442224 Fax
710 Bowsertowil Road, Manteo, NC 279,54 * 252,473,57 -)2 Lab /Fax
I Y C
't55-A Wilmington Hi-h-wav lacksonvflle, NC 28540 6 910.347 5 —.843 Lab/Fax
UNC-Chapel Hill Date of Report: Jun 26, 2020
1120 Estes Drive Extension Customer PO #:
Chapel Hill NO 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L,G, Report #: 2020-09790
Project ID: UNC-Bingham Stream Samples
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-24471 Site: SW-1 6/12/2020 10:30 AM Water Rob Clark
km
Results Date Analyz(B
Temperature
SM 2550 B
21.0C
06/12/2020
pH
SM 4500 H B
6,2 units
06/12/2020
Dissolved Oxygen
SM 4500 0 G
5.86 mg/L
06/12/2020
Total Phosphorus
SM 4500 P F
0.35 mg/L
06/23/2020
BOD
SM 5210 B
<2 mg/L
06/12/2020
All QC requirements for DO depletion
not met. Result estimated.
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
EPA 3512
11.6 mg/L
06/24/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
11.9 mg/L
06/23,12020
Total Nitrogen
Total Nitrogen
23.5 mg/L
06/25/2020
Lab ID Sample ID:
Collect DatelTime
Matrix Sampled by
20-24472 Site: SW-2
6/12/2020 10:50 AM
Water Rob Clark
Test
Method
Results Date Analyzed
Temperature
SM 2550 B
21.6 C
06/12/2020
pH
SM 4500 H B
6.6 units
06/12/2020
Dissolved Oxygen
SM 4500 0 G
6.26 mg/L
06/12/2020
Total Phosphorus
SM 4500 P F
0.20 mg/L
06/23/2020
BOD
SM 5210 B
2 rng/L
06/12/2020
Total Nitrogen (Calc)
Total Kieldahl Nitrogen (TKN)
EPA 3512
1.4 mg/L
06/22/2020
Nitrate+Nitrite-Nitrogen
EPA 3532
0.83 mg/L
06/22/2020
Total Nitrogen
Total Nitrogen
2.2 mg/L
06/25/2020
Report #:: 2020-09790 Page 1 of 2

ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 V�indmtll Way' 1,41il yin ton, NC 2 405 6 910,392.0223 Lab a 910.392.424 Fax
710 Bwse+to w n Road, Manteo, NC 2 954 e 252,4715 3 5, 02 Lab Tax
255 A Wflmhig'o F 15 g-hivay, Jacksonville,, NC 28540 0 910,3-i .5843 Lab/'Fax
iiL)i",,.C'.1-Ix"roI2mi'i1Lcilcheiii.5 s.i'om
UN -Chapel Full
Date of Report: Jun 26, 2020
1120 Estes Drive Extension
Customer PO :
Chapel Full NC
27599-1650
Customer ID: 13060013
Attention: Larry Daw, L,G.
Report ##: 2020-09790
Project ID: UNC-Bingharn Stream
Samples
Lab ID Sample ID:
Collect Date/Tire Matrix Sampled by
20-24473 Site: SW-3
6/12/2020 11:15 AM Water Rob Clark
Test
Method
Results Date Analyzed
Temperature
SM 2550 B
21.7 C
06/12/2020
pH
Sty 4500 H B
6.6 units
06/12/2020
Dissolved Oxygen
Sin 4500 0 0
6.26 mg/L
06/12/2020
Total Phosphorus
SM 4500 P r
0,24 mg/L
06/23/2020
B D
Sri 5210 B
3 mg/L
06/12/2020
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
1.6 mg/L
06/22/2020
Nitrate+Nitrlte-Nitrogen
EPA 3512
0,80 rng/L
06/22/2020
Total Nitrogen
Total Nitrogen
2A mg/L
06/25/2020
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
20®24474 Site: SW 4
6/12/2020 10:15 AM Water Rob Clark
Test
Method
Results Date Analyzed
Temperature
SM 2550 B
20.8 C
06/12/2020
pH
SM 4500 H B
6.5 units
06/12/2020
Dissolved Oxygen
SM 4500 0 0
7.55 mg/L
06/12/2020
Total Phosphorus
Sri 4500 P r
0.23 mg/L
06/23/2020
SQD
Sri 5210 B
2 rng/L
06/12/2020
Total Nitrogen (Dale
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
3,2 mg/L
06/22/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
2.13 mg/L
06/22/2020
Total Nitrogen
Total Nitrogen
5.3 mg/L
06/25/2020
Comment:
Reviewed by:
Report ##:: 2020-09790 Page 2 of 2

Date:
XnaNst:
Eahbratron -Iiine Cal Buffer 4 0 s u Cal But -Ter 10 0 s a
chiteik butler must read within ± 0 1 pH units of the buffer's vitie val
V`01
fication # 94
Facility Nsine:
tee: a Ertl
PH
,Jethod SN14500 1-1-�13 -2011
Check Buffer 7 0 s.u,
t1N
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so buffer Lot#i
Collection
Sample Analysis j pH Result
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S pie local
Time+
Time* S U
Check value s u
NMEEM
1, so buffer Lot# Ricer 2905A94 �Ex 10/�20
* Post analysis buffer check is required when performing anaiNses at multiple sampling locations and must be within � 0 1 units
,%ll PH values in pH units (i e, au.). Record all data to the nearest 0 01 s u and report to the nearest 0 1 s u,
Total Residual Chlorine (TRQ
Reference Method: Slat 4500 Cl-G2011 Hach 9167 HR: Please circle applicable Method
Post-aludystis
1 Sample
Daily Check I Time check Sample i Check Std. Sample TRC Result
Standard Result 1 1 Standard Collection Analysis
4&PL or mg!L 1 Analy
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buffer's true value
Lrumem ID
Comments/Data Qualifim
FRC Daily Check Standard rue value_
jaWL or mg/L
acceptance rangc_,Ug/L or m&!L
Check standards must recover within :i-10%
ofthe check standard's
true value
\nnual Calibration Curve Verification Date;
Reagent Blank Value, _i,When applicable, Analyze and document a reagent blank when standards, sample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference Method SM 4500 0 G-101 I Instrument ID
Calibration/ i Calibration variable
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# Post-anaiNsts calibration
venfication (when necessary)
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or % effielenCV
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after call bratitor i
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Sample Lariat
CommentsiDatia Qualifiers
Time
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Per-sonnel Note:
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Date,
A
Facility Name:
knaNst.
Permit 9,
pH
Reference Method-, SM4500 H+B -1-011
--------
instrument ID,. t-P
Casio ton Time
Cal Buffer 4 0, a
Cal Buffer I 10 u
tt Buffer 7.0 u
k Buffer s,u,
Chcct�
Comments
6
'pH check buffer must read within 0. I PH units of the butTer's true value,
4 su buffer
I so butTer Lot#/:
Ricca 2808744 Ex 7/20
i 0 so buffer Lot# 2405A94_ Exp 10/20
S pie location
Sample Collection
Sample Analysis
PH Result ►Post -analysis Buffer
Comments/Data Qualifiers
Tirne#
Time*
S4 Check value s,u.
I 3
Iri 1-1
1 ,
- j, 7
11,70
I iv
* Post analysis buffer check is required when performing analyses at multiple sampling locations and must be within ± 0.1 units of the buffer's true value
-U pH values in PH Units (i.e., 3.11r). Record all data to the nearest 0 01 s,u. and report to the nearest 0,1 s.u,
Total Residual Chlorine (TRC)
Reference Method: SM 4500 G-G201 I Hach 9167 HR: Please circle aulicable Method instrument ID -
I Post -analysis E I
Daily Check Sul. Time check Sample Sample TRC Result
Std Result Standard Collection Analysis I
Check SandarSample I omments/Data Qualifiers {when analyzing Amity Location pWL or mg/L
4g/L or mg/L at multiple sites) Zed Time Time
Check standards must recover within ±10% of the check standard's true value
\rumal Calibration Curve Verification Date:
Reagent Blank Value: _(When applicable, Analyze and document a reagent blank when standards, sample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference Method:SM 4500 0 G,2011 instrument ID
I
# Post -analysis calibration
Calibration/ Calibration variable i Meter reading
I verification (when necessary)
Verification I or % efficiency Comments
rime after calibration I
Temperain Barometric Theoretical Calculated
re "Pressure Value mj4 V*MS_rn
Z
Fs& this row when performing a verification iwaead of
Sample Location Sample Collection Sample Analysis DO reading Time 'rime ml, Comments/Data Qualifiers
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When performing analyses at multiple locations, the meter must be recalibrated at each site before analysis or a post -analysis calibration verification must be performed
maple is mcahitred directly ri die iican),indioi onsi,e, oqk !uTIC :maN ;ILd,,%ould be recoided tivith a -,ine [hat iher aie inemuicd it', SOLU or inlioledlabeiv
remperature
Reference Method: Sint 2550 B-2010 Instrument ID Cy I V/
i Sample i 'Sample Temperature
Sample Location Collection Analysis C Comments/Data Qualifiers
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,nnual Verification Date
F;rld Personnel Now
DOC,y)AM01

Environmental Chemist, Inc., Wilmington, NC Lab #94
Sample Receipt Checklist
6602 Windmill Way
Wilmington, NC 28405
910.392.0223
-ig A
Client:—L,Ln Date: tl, Report Number: Z
iReceipt of sample:
Delivered 0 UPS 171 FeclEx 0 Other M
111111111111iM �Tlff 1 Were custody seals present on the cooler?
If custody seals were present, were they intact/u n broken?
�'Original temperature upon receipt _,C Corrected temperature upon receipt
How temperature taken:
0 Temperature Blank JO Against Bottles
]R Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor 'C: 0.0
3. If temperature of cooler exceeded 6'C, was Project Mgr./QA notified?
V
7T�Were proper custody procedures (relinquished/received) followed?
6. Were samples ID's listed on sample containers?
7. Were collection date and time listed on the COC?
& Were tests to be performed listed on the COC?
9Did samples arrive in proper containers for each test?
10. Did samples arrive in good condition for each test?
11. Was adequate sample volume available?'
11 Were samples received within proper holding time for requested tests?
13, Were acid preserved samples received at a pH of <2?
14. Were cyanide samples received at a pH >12?
15. Were sulfide samples received at a pH >9?
1& Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L?
ere Sulfide/Cyanide received at a chlorine residual
18. Were orthophosphate samples filtered in field within 15 minutes?
TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
,Sample Pre ion:
(Must be completed for any sample(s) incorrectly preserved or with headspace)
i!Sample(s)
were received incorrectly preserved and were adjusted accordingly
,by adding (circle one):
H2SO4 HNO3 HCI NaOH
iTime of preservation:
If more than one preservative is needed, notate in comments below
�Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or
Inotify the state lab if directed to analyzed by the customer. Who was notified, date and time:
!Volatiles Sample(s)
were received with headspace

41=
ENVIRONMENTAL CHEMISTS,
6602 Windmill Way Wilmington, NC 284
INC OFFICE: 910-392-0223 FAX [phone]
Analytical & Consulting Chemists
NCDENR: DWO CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill
PROJECT NAME: UNC Bingham Stream Monitoring REPORT NO:
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
ICOPY
TO: Chuck Riley, RE (McKim&Creed)
email: [e-mail].
-------
SamleBy: 7
SAMPLEInfluent, E o Effluent, W = Well, ST ® Stream, SO = Soil, SL Sludge, Other:
ollection
C Collection
'L PRESERVATION
Sample Identification
LU
0 8 2 B 8 S ca M W le
C 2 z 0
M X M ANALYSIS REQUESTED
0 W
Date
1 m Ti.
Time
�(
E 0 '_51 5 0
z z
0 0
X z 0
—7—
C P J1
P t) Z J
sw
G X
BOD, Total N(calc),Total P, Dissolved 02
C ILA
C P
pH (field):
G G
6-1,
iti 131
C P
SW.
GC GP X X
X X
IMOD, Total N(calc),Total P, Dissolved 02
pH (field),
G G
17
C P
4
�Ir7 -I
S.
G G X X
BOD, Total N(calc),Total P, Dissolved 02
C P
pH (field)-
G G
7
C P 49'
X
Al 7
sw
G G X X
BOD, Total N(calc),Total P, Dissolved 02
C P
pH (field)
G G
:I
G G
:L
Transfer
Relinquished By:
Date/Time
Received By: Date/Time
2.
Temperature _raturo eceived: when
R
—Acceptei. Rejected:
Resample Requested:
Delivered By:
Received By
Time:
Comments:— --Samples due in
June and
TURNAROUND:

ANALYTICAL & CONSULTING CHEMISTS
r7 -. ""qql
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill
Date of Report: Dec 19, 2020
1120 Estes Drive Extension
Customer PO #:
Chapel Hill NC
27599-1650
Customer ID: 13060013
Attention: Larry Daw, L.G.
Report #: 2020-20574
Project ID: UNC-Bingham Stream
Samples
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
20-52390 Site: SW-1
12/3/2020 10:30 AM Water Rob Clark
Test
Method
Results Date Analyzed
Temperature
SM 2550 B
7.7 C
12/03/2020
pH
SM 4500 H B
6.6 units
12/03/2020
Dissolved Oxygen
SM 4500 o G
4.95 mg/L
12/03/2020
Total Phosphorus
SM 4500 P F
0.13 mg/L
12/16/2020
BOD
SM 5210 B
<2 mg/L
12/04/2200
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
< 0.5 mg/L
12/16/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
< 0.02 mg/L
12/10/2020
Total Nitrogen
Total Nitrogen
<0.5 mg/L
12/18/2020
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
20-52396 Site: SW-2
12/3/2020 11:00 AM Water Rob Clark
Test
Method
Results Date Analyzed
Temperature
SM 2550 B
8.0 C
12/03/2020
pH
SM 4500 H B
6.6 units
12/03/2020
Dissolved Oxygen
SM 4500 o G
11.6 mg/L
12/03/2020
Total Phosphorus
SM 4500 P F
0.10 mg/L
12/16/2020
BOD
SM 5210 B
<2 mg/L
12/04/2200
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
EPA 3512
0.6 mg/L
12/16/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
< 0.02 mg/L
12/10/2020
Total Nitrogen
Total Nitrogen
0.6 mg/L
12/18/2020
Report #:: 2020-20574 Page 1 of 2

[envirrochem:]
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20574
Project ID: UNC-Bingham Stream Samples
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-52397 Site: SW-3 12/3/2020 11:30 AM Water Rob Clark
Test Method Results Date Analyzed
Temperature
SM 2550 B
7.6 C
12/03/2020
pH
SM 4500 H B
6.7 units
12/03/2020
Dissolved Oxygen
SM 4500 o G
9.84 mg/L
12/03/2020
Total Phosphorus
SM 4500 P F
0.11 mg/L
12/17/2020
BOD
SM 5210 B
2 mg/L
12/04/2200
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
< 0.5 mg/L
12/16/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
< 0.02 mg/L
12/10/2020
Total Nitrogen
Total Nitrogen
<0.5 mg/L
12/18/2020
Lab ID Sample ID:
Collect Date/Time
Matrix Sampled by
20-52398 Site: SW-4
12/3/2020 12:00 PM
Water Rob Clark
Test Method Results Date Analyzed
Temperature
SM 2550 B
8.8 C
12/03/2020
pH
SM 4500 H B
6.6 units
12/03/2020
Dissolved Oxygen
SM 4500 o G
10.8 mg/L
12/03/2020
Total Phosphorus
SM 4500 P F
0.06 mg/L
12/16/2020
BOD
SM 5210 B
2 mg/L
12/04/2200
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
< 0.5 mg/L
12/16/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
< 0.02 mg/L
12/10/2020
Total Nitrogen
Total Nitrogen
<0.5 mg/L
12/18/2020
Comment:
Reviewed
by:
Report #:� 2020-20574
Pape 2 of 2

Date: fj- 3 '7210
Analyst: 9.YL
Certification # 94
Facility Name: i
I
Permit #: r eve ) naq
Reference Method. 14500 H+B -201 1 Instrument ID OTO
Calibration Time
Cal Buffer 4.0 s.0
Cal Buffer 10.0 s.u.
Check Buffer 7.0 s.u.
Comments
Wb�, 00
U ,0 O `J'
lI�. D Z `y'
o `y'
`pH check buffer must read within s 0. I pH units of the buffer's true value
4 su buffer Loth' Ricca 2001B20 Exp 112022 7 su buffer Lot#W: Ricca 2008993 Exo. 712022 10 su buffer LoO. Ricca 1001791 71'2021
Sample location
Sample Collection
Time*
Sample Analysis pH Result Do -Post -analysis Buffer
Time♦ s.0 Check value s.u. Comments,Data Qualifiers
SvJ
o
t0'35 6. o
SW- 3-
1'ioo
ib5 6.6 S
S
W,35 61t
U
il'. o o
la'. 0 6,
► Post analysis buffer check is required when performing anal) ses at multiple sampling locations and must be within = 0 1 units of the buffer's true value
All pH values in pH units (i.e , s u ) Record all data to the nearest 0 01 s u and reportto the nearest 0.1 s u
Total Residual Chlorine (TRC)
Reference Method S,vl 4500 CI-G201 I Hach 8167 HR ( Please circle a;.v:icable Method Instrument ID
Daily Check
Post -analysis
Time check
Sample
Sample
Standard Result
Check Std
(when anal%zine
Standard
Sample
Location
Collection
Analysis
TRC Result
µg L or mg'L
Comments/Data Qualifiers
µg'L or mg-1
at multiple sites)
Analyzed
Time
Time
TRC Daily Check Standard true value µg/L or mg/L acceptance range µg•'1 or mg1L
Check standards must recover within =10% of the check standard's true value
Annual Calibration Curve Verification Date: LOT # Exp. Date:
Reagent Blank Value. (When applicable Analyze and document a reagent blank when standards, sample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference Method.SS14500 0 G,-2011 Instrument ID.
Calibration'
Calibration variable
Meter readine
• Post -analysis calibration
Verification
or °'o efficiency
verification (when necessary)
Comments
Time
after calibration
Barometric
Theoretical
Calculated
Temperature
ressure
Value me
I Value me:'L
UCH
Use this row when performing a verification instead of
calibration
Sample Location
p
Sample Collection
Time
'Sample Analysis
Time
DO reading
m L
Comments Data Qualifiers
• When performing anahses at multiple locations, the meter must be recalibrated at each site before analysis or a post -analysis calibration verification must be performed
' If sample is measured directly in the stream and or onsite, only time analyzed would be recorded with a note that they are measured in situ or immediately
Temperature
Reference Method SM 2550 B-2010 Instrument ID. -
Sample Location
Sample 'Sample
Collection Analysis
Time Time
Temperature
°C
Comments,Data Qualifiers
05
SW-3
' If sample is measured directly in the stream and or on site, only time analyzed would be recorded, with a note that the% are measured in situ or immediatel%
Annual Verification Date _ I ;-2020
Field Personnel Note:
Rev 9-2020
QA.001

Environmental Chemist, Inc., Wilmington, NC Lab #94
Sample Receipt Checklist
6602 Windmill Way
Wilmington, NC 28405
910.392.0223
Client: JAA\Q C- S p,) �. 11. Date: 12 3 2-0 Report Number:
Receipt of sample:
E
HEM Pickup Client Delivery ❑
1 UPS ❑ FeclEx ❑ Other ❑
❑ YES
❑
NO
N/A
1. Were custody seals present on the cooler?
❑ YES
❑
NO
N/A
2. If custody seals were present, were they intact/unbroken?
Original temperature upon receipt °C Corrected temperature upon receipt 'C
How temperature taken:
❑ Temperature Blank Against Bottles
IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor °C: 0.0
YES
10
NO
3.
If temperature of cooler exceeded 6°C, was Project Mgr./QA notified?
YES
❑
NO
4.
Were proper custody procedures (relinquished/received) followed?
YES
❑
NO
5.
Were sample ID's listed on the COC?
YES
❑
NO
6.
Were samples ID's listed on sample containers?
YES
❑
NO
7.
Were collection date and time listed on the COC?
YES
❑
NO
8.
Were tests to be performed listed on the COC?
YES
❑
NO
9.
Did samples arrive in proper containers for each test?
YES 10
NO
10.
Did samples arrive in good condition for each test?
YES 10
NO
11.
Was adequate sample volume available?'
YES I0
NO
12.
Were samples received within proper holding time for requested tests?
YES 113
NO
13. Were acid preserved samples received at a pH of <2?
❑ YES 10
NO
14.
Were cyanide samples received at a pH >12?
❑ YES I0
NO
15.
Were sulfide samples received at a pH >9?
❑
NO
16.
Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L? **
❑ YES
❑
NO
17.
Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L?
Cr
❑ YES
❑
NO
18.
Were orthophosphate samples filtered in the field within 15 minutes?
* TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation:
Sample(s)
by adding (circle one):
(Must be completed for any sample(s) incorrectly preserved or with headspace)
were received incorrectly preserved and were adjusted accordingly
H2SO4 HNO3 HCI NaOH
Time of preservation: If more than one preservative is needed, notate in comments below
Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or
notify the state lab if directed to analyzed by the customer. Who was notified, date and time:
JVolatiles Sample(s) were received with headspace I
COMMENTS:
DOC. QA.002 Rev 1

4MD
Analytical & Consulting Chemists
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
COLLECTION AND CHAIN OF CUSTODY
6602 Windmill Way Wilmington, NC 28405
OFFICE: 910-392-0223 FAX [phone]
[e-mail]
Client: UNC-Chapel Hill
PROJECT NAME: UNC Bingham Stream Monitoring
REPORT NO:
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKim&Creed)
email: [e-mail]
Sampled By: SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
Sample Identification
P
Collection
E lL
m~
N
0. `o `�
C
;, _
:" `o
O CL
9
=
Q
o
0 W
m m
g 7
z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
m
O
Z
=
o
H
'�
z
=
Q
z
o
w
H
o
SW: laJ
u�7 C
L 0
)a
X
X
BOD, Total N(calc),Total P, Dissolved 02
G
G
PH (field): b v
„
7�.,
C
P
CAV
G
G
n
SW:
'Z -3-2-0
0 u
C
P
X
X
BOD, Total N(calc),Total P, Dissolved 02
G
G
pH (field): ,(. 61 I1. 60
o
(�, 0 <1
C
P
�\
G
G
SW: 3
a--5-- ,o
F• 3
C
P
X
�
X
BOD, Total N(calc),Total P, Dissolved 02
G
G
pH (field): 6 .7 0
�`a.- S-a.�
G
G
SW: .9
12;
C
P
X
X
BOD, Total N(calc),Total P, Dissolved 02
G
G
pH (field): 6 �� � �
/? ,. a
�Q �-
C
P
1�
W
G
G
C
P
G
G
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received: ,� 3•' Accepted: V Rejected: ResampleiRe nested:
Delivered Received By:Date: `0� - " 1� Time: �A • 'Zi
Comments: Sa es due in June and December TURNAROUND:

Exhibit 2
2020 Groundwater
Sampling Results

ANAMICAL & CONSULTINGCHEMISTS
Im
Km
Depth to water, tt.
Ammonia Nitrogen
Gallons bailed before sampling
Odor
Total Dissolved Solids (TD)
Temperature
Chloride
P
Total Phosphorus
Total Organic ;carbon (TOO)
Fecal Coll orm
Nitrate Nitrogen ( alc)
Nitrite Nitrogen
Nitrate+Nitrite-Nitrogen
Nitrate Nitrogen
Environmental Chemists, Inc.
66012 Windmill Way, , iVi n-iin ton, i� t; t 1 31;_ t 22,0223 La - 392,4424
i T �n, r � ic,, ; � {f t , �1'° ����.,Fax
e rto . t .c=, 1 =t c , NC �. 95 2 7 s.7`()r Lab/. -Fax
2r, —A W 12'-i1Ft-tort ¢igh a-,, ) amkst7iivi. lie, INC 28540 o 9 Eta„54-T 84 s La rt €=�s.x.
I11t)(alei vir onaientalcjhenii ts,co ri
Method
Results
Date Analyzed
Color
Lt `range/Turb
03/13/2020
Death 14 Water, Ft.
32.5 feet
03/13/2020
EPA 350,1
< 0,2 rng/L
03/27/2020
Gallons Baled before sampling
5, 0 gallons
03/13/2020
Qualitative
None
03/13/2020
SIDi 2540 c
159 g/L
03/16/2020
SM 2550 s
17.1 C
03/13/2020
Sty 4500 C1 r
< 5 mg/L
03/23/2020
SM 4500 H B
-9 units
0311 /2020
SM 4500 n r
0,65 mg/t_
03/31 /2020
SM 5310 s
<0,5 mg/L
03/17/2020
SM 9222D Mr
<1 Colonies/100mL 03/13/2020
EPA 353.2
0.23 mg/L
03/13/2020
EPA 353.2
0.69 mg/I_
031124/2020
Subtraction Method
0.41 mg/L
03/31/2020
Report #;; 2020-04353 Page 1 of 5

Environmental Chemists, Inc.
6602 rNrn.dn-fill`V ;.v, Wil-idii-torn, Nip_ _2�-�'. �� � 9:.1)392.0223 Lab _ 910,39 1424 Fax
ANALYTICAL ONSU..TI G CHEMISTS
Test
Method
Results
Date Analyzed
Color
Color
Clear
03/13/2020
Depth to water, ft,
depth to Water, Ft.
6.2 feet
03/13/2020
Ammonia Nitrogen
EPA350.t
< 0.2rrt /L
0 /27/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
03/13/2020
Odor
Qualitative
None
03/13120 0
Total Dissolved Solids JDS)
SM 2540 C
76 mg/L
03=16/2020
Temperature
SM 2550 S
17,5 C
03/13/2020
Chloride
SM 4500 ui s
mg/L
03/ 3/2020
PH
SM 4500 H S
5.6 units
0/13/2020
Total Phosphorus
SM 4500 P F
0,41 mg/L
03/31 /2020
Total Organic Carbon (TOC)
SM 5310 s
0.7 mg/L
03/17/2020
Fecal Coliform
SM 9222D Mr
<1 Colonies/100r L 03/1 /2020
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
03/13/2020
Nitrate+Nitrite-Nitro en
EPA 353.2
0,13 mg/L
03/24/2020
Nitrate Nitrogen
Subtraction Method
0,13 mg/L
03/31/2020
Report #:: 202;-04358 face 2 of 5

Environmental Chemists, Inc.
t 602 ,&'iiidrfflA' -, Wi1 rir,tt-)n, NC 28405 * 9'10.39),' 9?2 1,a - 910.3924,1424 Fax
710 Box scrt0-v, n 1. o d, Mi .T.t-C>, NC 27954 - =-).-73 571.12 I a , Ta
ANALYTICAL & CONSU!- , G ;CHEMISES
I N -hapel Hill
Date of Report: Apr 02, 2020
1120 Estes Drive Extension
Customer
Chapel Hill NC 27599-150
Customer ID, 13060013
Attention: Larry Davy, L.G.
Report : 2020-04358
Project ID; UNC-Bingham monitoring wells
Lab ID Sample ID:
Collect ate/Time Matrix Sampled by
20-10736 Site: MVV_q
3/13/2020
10.15 AM Water Eric McHorney
Test
Method
results Date Analyzed
Color
Color
Lt Yellow/Clear
03/13/2020
Depth to water, ft,
near: to water. Ff.
19.0 feet
03/13/2020
Ammonia Nitrogen
EPA 350.E
< 0.2 mg/L
03/27/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.Ogallons
0 113/ 020
Odor
Qualitative
None
03/13/2020
Total Dissolved Solids JDC}
Sid 2540 C
65 mg/L
03/16/2020
Temperature
SM 2550 S
16.7 C
03/13/2020
Chloride
SM 4500 cl E
< 5 mg/L
03/2 /2020
pH
Sir 4500 H l3
.7 units
03/13/2020
Total Phosphorus
SM 4500 P F
0.42 mg/L
03/31 /2020
Total Organic Carbon (TOC)
SM 5310 S
2.1 mg/L
03/17/2020
Fecal Conform
Sty 9322n rMF
<1 Colonies/100rnL
03/13/2020
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
03/13/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
0.06 rng/L
03/24/2020
Nitrate Nitrogen
Subtraction Method
0.06 mg/L
03/31/2020
Report : 2020-04358 Page 3 of 5

ANALYT # AL & CONSULTIINGCHEMISTS
Environmental Chemists, Inc.
66112 Wti dni =1Wa-,, ;t` ilr-r6zwU)n, 1,C 28405 e 910.3192, 223 Lab s 91U 39 4-'1- --'-1X
710 b< wsertowii Road, Ma te),NC 27924 o 252.d7- � �2 [ ab Fax
2. v l n;r ;)t ,n f i0h x, jacks nville, NC 28540 * 91031 843 -"ab/t
in (#t'jiicnietich- --1 i,° `Corn
UNC®Chapel Dill
Date of Report: Apr 02, 2020
1120 Estes Drive Extension
Customer ISO #:
Chapel Hill NC 27599-1650
Customer ID: 13060013
Attention: Larry Daw, L.G.
Report #: 2020-04353
Project IC: UNC-Bingham monitoring
wells
Lab ID Sample IC:
Collect Date/'Time Matrix Sampled by
20-10737 Site: MW-5
3/13/2020
11=135AM Water Eric McHorney
Test
Method
Results Date Analyzed
Color
Color
Clear
03/13/2020
Depth to water, ft.
Depth to water, Ft.
16.6 feet
03/13,12020
Ammonia Nitrogen
g
EPA 350.1
0.2 mg/L
03f27i2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
03/13/2020
Odor
Qualitative
None
03/13/2020
Total Dissolved Solids (TD )
sty 2540 c
267 mg/L
03/16/2020
Temperature
sty 2550 s
16.5 =C
03/13/2020
Chloride
Sri 4500 c' E
2,11 mg/L
03/23/2020
pH
SM 4500 H E
7.6 units
03/13/2020
Total Phosphorus
SM 4500 P r
0.20 mg/L
03/31 /2020
Total Organic Carbon (TOC)
sit 5310 B
1.9 mg/L
03/17/2020
Fecal Coliforrn
sip 9222D r.Ir
<1 Colonies/100rnL
03113J2020
Nitrate Nitrogen (Cale
Nitrite Nitrogen
EPA 353.2
< 0,02 mg/L
03/13/2020
Nitrate+Nitrite®Nitrogen
EPA 3512
< 0.02 mg/L
03/24/2020
Nitrate Nitrogen
subtraction Method
<0.02 mg/L
03/31/2020
Report #: 2020-0435 age 4 of 5

ANALYTICAL CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Win d-1-di1 XM,,y, IN"In-ington, NC 284(13 * W0,392,02231ab o 91[ .322.4424 Fax
0 Bowsertown Road', )vla-teol, NC 27954 * 252,473 702 Lab F
25'i—A rs�,t�gWn 1fi0-ov av, Jackson ill , C2854(, o 91€).347 5,843 L b,,Fax
h t tc#,Cil?% t`4int.lt '_ C c1 --:tli tl2 4.,f..;CJt? i
N -Chapel Hill
Date of Report: Apr 02, 2020
1120 Estes Drive Extension
Customer PO #;
Chapel Hill NC 27599-1650
Customer ID; 13060013
Attention: Larry Daw, L.G.
Report #. 2020-04358
Project ID, UNC-Bingham monitoring
wells
Lab ID Sample ID.
Collect Date/Time Matrix Sampled by
20-10738 Site: MVV-6
3/13/2020
11:05 AM Water Eric McHorney
Test
Method
Results Date Analyzed
Color
Color
dear
03/13/2020
Depth to water, ft,
Depth to Water, Ft.
21.3 feet
03/13/2020
Ammonia Nitrogen
EPA 35 ".i
< 0,2 mg/L
03/27/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
03/13/2020
Odor
Qualitative
None
03/13/2020
Total Dissolved Solids (TD)
SM 2540 C
295 mg/ L
03/16/2020
Temperature
SM 2550 s
16.6 C
03/13/2020
Chloride
SM 4500 ci E
17 mg/L
03/23/2020
ply
SM 4500 a B
6.8 units
03/13/2020
Total Phosphorus
SM 4500 P F
0.30 mg/L
03/31 /2020
Total Organic Carbon {TCC)
SM 5310 s
2.7 mg/L
03/17/2020
Fecal Coliform
SM 9222D MF
<1 Colonies/100mL
03/13/2020
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
03/13/2020
Nitrate+Nitrite-Nitrogen
EPA 3532
< 0.02 mg/L
03/24/2020
Nitrate Nitrogen
Subtraction Method
<0.02 mg/L
03/31/2020
Comment:
Reviewed by
Report #:: 2023 04v 53 Page 5 of 5

*PH check buffer must read within ±0A VH units of the buffer's true value
4 su bruTer LoulP_ Ricca 2901791 Exa 12120
so buffer Loth
Ricca 2809744 Exia 7/20 !0 Su buffer Lodi Fires 1905A94 Exp 10/2,1)
Sample IOCatl(in
Sample Cc!lectinra
Sample Analysis
pH Result 10, Post -analysis Buffer
Comments,Data Qualifiers
Time#
Time*
s u Check value 5 U,
4
* Post analysis buffer check is required when performing analyses at multiple sampling locations and must be within + 0,1 units of the buffer's true value
All pH values in PH units (i.e­ s.u.). Record all data to the nearest 0 01 s u. and report to the nearest 0.1 au.
Total Residual Chlorine (TRC)
Reference Method: SM 4500 CI-G201 1: Hach l!167HR: t Please circle applicable Method Instrument ID:
Post -analysis
Dells, Check Time check 1
Stand' Check Std, Sample Sample Sample TRC Result
Standard Result (when analyzing Standard Location collection Analysis I CornmentsiDatrit Qualifters,
4g/L or mg/L I I gg/L or mgrL
Analyzed 1 Time I Time I
rRC Daily Check Standard true value J�#WL or org/L acceptance range_iagi`L or mg1t,
Check standards must recover within e, /a of the check staridard's true value
Annual Calibration Curve Verification Dam:
Reagent Blank Value: _iWizen applicable. Analyze and document a reagent blank when standards, sample dflutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference sidetho&SM 4500 0 G,-2011 Instrument !D�
Calibration/ Calibration variable Meter reading I
* Post-analvios calibration i
venficansin or % effictency after ventication {when ecessary) Comments
Time calibration '1--- 7- ;=�
7.re=c.1 Calculated
I emverature
( to this row % hen Iterfarmoill a verification instleen or vatibrattlin
_ample Location
Sample Collection
Sample Analysis DO reading
Comments/Data Qualifiers
Time
me in "'L
When performing analyses at multiple locations, the meter must be recalibrated at each site before analysis or a post -analysis calibration verification must' percormed.
lf,aiiiplc Es mcicured
d"ectiv ;n the ircam and/ot, oimto­oniv time anab.zcd viould lre'econ11,:dmdii notic thin :hei, dic measured ill iftU cit' IminedhaterN
Temperature
Reference Method: SM 2550 B-2010 Instrument ID -
Sample
Sample Temperature
ample Temperature
Sarrip,71L--ei..
Sample Location
i Collection
Culfx��cn
Analvais �c
Analysis C CommentsiData Qualifiers
Time
Ice,
anot,:fllmtlhtn me Mhelstirld in situ orminculwid,
Annual Verification Date
Field Personnel Note:
DOC.
Rev 0`2019

Analyst: iI 14�- rr ,
Calibration Time Cl
—
t ertifreat€ears M 94
Facility Name. U i k.-
£ m
Permit ft:
VINJI
Instrainenc [: `� �-�
CaI fluffier 7 �; s.ts, ?? qq � Clae�k But€er f,a,�� s;�. tiarne:ats
� i.i �x{ l � F✓h' ��'$ �..� a"r�. fit+ �`
r�
$phi check buffer must read within ± 0, i pH units of the buffer's true value.
4 so b3_ttTer Lot#/, Ricca 2901791 Ex 12f20 7 su buffer Lo t: Ricca 2808744 Ex 7t20
Sample location j Sample
TimeCollection Sample:tnaiysis!77i- pig esu(E *Post -analysis But
f Time* s u Check value s u,
u
v %
or ._ - .w.
All VV to
%
Past analysis buffer check is required when performing analyses at it
1
10 sip buffer Lott Ricca 2905A94 EX � 10,7
s
and
All PH values in pH units 0-e., s.u.). Record all data to the nearest 0 01 s u. and report to the ntearest ions a 1 s ut be within f 0, I units of the
Total Residual Chlorine (°TRC)
Reference Method: SM 4500 CI-G201 I : Hach 81b7 HR r D1____ _:__t_ _ _ . ..
Daily Check I
rost-analysts � 1 I --�
Time check ----------
Standard
Result Check Std. Sample I Sample Sample
(when analyzing Standard Location 1 Collection Anabsis TRC Result
ugrl or mglL Analyzed
at multiple sites} Y Time Time pgfL or mgfL
Comments/Data Qualifiers
au7's true value
rent ID:
Comments/Data Qualifiers
rRC Daily Check Standard true value
gli, or ttagtf, acceptance range ug.1L or mgiL
Check standards must recover within;16pa
;/o of the check standard's true value
Annual Calibration Curve Verification hate:
Reagent Blank Value: (When applicable. Analyze and document a reagent blank when standards, sample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference Methcxi:SM 4500 0 Co,-201 1 Instrument ID
i
Post -analysis Calibration/ � Calibration variable I M
Meter rearing � calibration
or fo e iic;ee;t after
Verification 1 � � Verification (when necessary)
Time aiibratio-n Comments
Tempera€ure J,Theoretical Calculatcai
Sample Location, 1 Sample
Analysis I reading
{use this row saiaesc pvrfo�rmmg is veritte:ation in'sto
,olsir
Comments/Data Qualifiers
s When performing analyses at multiple locations the meter must be ee afi6rated at each site before analysis or a tx st-analysis calibration verification must be performed.
(C saint 1e ;, saieasurcd ire tic in t e stizanai ;Intl of uitsitc, {aitic ti is loci°rzc l .rriuld he rccoidcd sattli a ,note Ctat the} a_e easurcd in si€u t+€ iiitiaieai�tte[
Teesaperattsa e
Reference Method: S 2550 B-201 J Instrument ICI:
Sample Sam1 ple 1 emperature
Sample Location 1 Collection Analysis -C
o°
z e
t
i
111plc is Ineastn€ed dir:ctia in i'ae ri"C of aadt� ar On
Annual Verification Bate
Comments/Data Qualifiers
e
O'di, i nl, i ilc ZA d ,.child cc ic. ord d, ,i ,th a ni is hat chc, aNIM,isurcd in situ or iinimul i 1,
Rev '7i2DDC,

Etivfronrnental Chemist, inc., Wilmington, i

4=
Analytical & Consulting Chemists
Client: UNC-Chapel Hill
ADDRESS: 1120 Estes Drive Extension
Chapel Hill, NC 27599-1650
Sample Identification
Welk
Depth to water, ;,(W
pH(fjeld):
field cedar -
color .-'\)
M�
0
Temperature when
Delivered By:, - ------
Comments:
- C1,3
M
6WRARYMMIM UMIMUMn"Kam
[e-mail]
REPORT NO:
iM
email: [e-mail]
Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
ANALYSIS REOLIESTED
ITDS. Chloride- Write
-fle Ri�p'ues ed:,
IA —
TURNAROUND:

Sampled By:,�a�_�
Sample Identification
Well-,
Depth to grater: . .. .. 14
C"...
RH(fieldy
field odor.
color.� (AL.'C e-
2.
TemperatureWhen
Delivered By:--, m.
C 61102 Windmill Way Wilmington, NC 28405
ENVIRONMENTAL CHEMISTS, IN OFFICE: 910-392-0223 FAX [phone]
sts NCDENR: DWO CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
[e-mail]
COLLECTION AND CHAIN OF CUSTODY
PROJECT NAME: UNC-Bingham Monitoring well
REPORT NO: "(2
Extension
CONTACT NAME:
PO NO:
27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
,COPY TO: Chuck Riley, PE (McKim&Creed)
mail: [e-mail]
SAMPLE TYPE: 1= Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other.
ollection PRESERVATION
a 8 2
C z 0
0
ANALYSIS REQUESTED
E 0 <
0. V)
E 0— 0 z
z z
Date Time Temp 0
0
z <
!E
0
t 'T' G G x
TDS, Chloride, Nitrite
C P
G
4
3, NH3, Total P
P_
C c P
G G
TX
T0C
C C P
P
G G
X
C P
—FecalColiform
G G X
VOC's (December)
C P
G G
C P
G G
C P
G G
C P
in March, June, September, December (MW1,3,4 5 6
Relinquished By.
Received By:
Resample Rggli sted:
Date: 3/ Time:
TURNAROUND:

Sampled By:—,,,,` -4
SAMPLE TYPE: I = Influent, E Effluent, W = Well, ST = Stream, SO = Soil, St. = Sludge, Other:
C flection CL
Sample Identification
CL
2 z
0
ANALYSIS REOUESTED
E
Date Time Temp
E 0
0
0 CL
4
0
z z
z
x
0
<
z
0
C
P
Well: ikA 6_1 - L11
G
G
TDS, Chloride, Nitrite
C
P
d
<X L
Depth to water,
G
G
x
NO3, NH3, Total P
C
P
2aLons bailed:
G
G
x
TOC
C
P
pH(flel) a I
G
G
X
_FecalCofiform
C
P
fief odor-
G
G
X
V0C's (December)
C
P
color-
G
G
C
P
_4111-
G
G
C
—P
G
C
P
— ---------
G
::G::]_
Wells(total of - 5) due to be sampled in March, June, September, December (MW1,3,4,5,6)
Transfer Relinquished By:
Date/Time
Received By: DatefTime
2.
Temperature en Recei whved- z C-, Acceoted:
- --------
Rqque§ted:--..--
Delivered By: Received By: Date: 0,
m Coments:, TURNAROUND:
-Time:-
- ------ ----

Sample Identification
Well -
fieid odor. tNJa - -
color: L'kw"�A/
Wells(total of 5) due to be
Date I Time I T
T111MMMIMM
iTi
SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, St. = Sludge, Other:
PRESERVATION
2
CL
CL
2
z j 0 0
w
ANALYSIS REQUESTED
E
1p
E 0
0
C15
0
6
x
z
0 0
0 w z
z z
0
C
P
G
G
I
x
TDS, Chloride, Nitrite
C
P
t", d 4' a', L, I ")- <
G
G
x
NO3, NH3, Total P
C
P
G
G
x
TOC
C
P
G
G
X
—FecalCofiform
C
P
G
G
x
VOC's (December)
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
G
ember, December (MWI,3,4,5,6)
-,,-Rejegted:-- .-----------.--Resample R
By:_-- Date: Time:
TURNAROUND:

4=
Analytical & Consulting Chemists
Client: UNC-Chapel Hill
Chapel Hill, NC 27599-1650
Sample Identification
Well -
Depth to water,
gallons bailed,
field odor.- V,5
c6or' At-c",v",
1 w
2.
Temperature when
Delivered
rnmmsantQ-
6602 Windmill Way Wilmington, NC 28405
ENVIRONMENTAL CHEMISTS, INC OFFICE: 910-392-0223 FAX [phone]
NCDENR: DWO CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
PROJECT NAME: UNC-Bingham Monitoring wells c-
EPORTNO:
C 0; TAC T NAME:
J
COPY TO: Chuck Riley, PE (McKim&Creed)_— mail- ALA [e-mail]4u
trr" C' 4, '\ 1,
SAMPLE TYPE: I s Influent, E = Effluent, W = Well, ST = Stream, SO Soil, SL = Sludge, Other:
Collection
CL
2
PRESERVATION
54 .0
0
0.
0
C
x —_
W
LU
—_ — — —
0 0 LU
ANALYSIS REQUESTED
Date
Time Temp
E
0
0
0
0 6
z
0
z z
0 X 0
z
0
C
P
G
G
I S x
Chloride, Nitrite
C
P
C < v, -
G
G
t 3, NH3, Total P
C
P
G
G
x
T0C
C
P
G
G
X
C
P
_FecalColiform
G
G
x
VOC's (December)
C
P
G
G
C
P
G
G
C
P
G
G
C
C
P
G
G
led in March, June, September, December (MW1,3,4,5,6)
Relinquished By:
I
Date/Time
---]--Received
By:
DatefTime
1111000099 =0
Time:
_5
TURNAROUND:

Environmental Chemists, Inc.
6602 Wi,-)dmi111 May, Wilmington, NC 28405 * 910,392,0223 1 ab - 910.392.442a Fax
"iO Bowsertoovn Road, Manteo,, NC 27954 * 2-52,473.5702 Lab /Fax
255-A Wi1nnington Highway, Jacksonville, NC 28,540 * 910.347,')843 Lab/Fax
info tz nironrn en talchemi sts. con,
UNC-Chapel Hill Date of Report: Jun 26, 2020
1120 Estes Drive Extension Customer PO #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L,G. Report #: 2020-09789
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-24466 Site: MW-1 6/12/2020 10:35 AM Water Eric McHorney
Un
Color
Depth to water, ft.
Ammonia Nitrogen
Gallons bailed before sampling
Odor
Total Dissolved Solids (TDS)
Temperature
Chloride
pH
Total Phosphorus
Total Organic Carbon (TOC)
Fecal Coliform
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
Nitrate+ Nitrite -Nitrogen
ram��
Method
Results
Date Analyzed
Color
Tan/Turbid
06/12/2020
Depth to Water, Ft.
32, 0 feet
06/12/2020
EPA 350A
< 0.2 mg/L
06/17/2020
Gallons Bailed before sampling
5.0 gallons
06/12/2020
Qualitative
None
06/12/2020
SM 2540 C
76 mg/L
06/12/2020
SM 2550 B
17A C
06/12/2020
SM 4500 Cl E
< 5 mg/L
06/17/2020
SM 4500 H B
6.0 units
06/12/2020
SM 4500 P F
0.53 mg/L
06/23/2020
SM 5310 B
<0.5 mg/L
06/22/2020
SM 9222D MF
<1 Colon ies/11 00m L 06/12/2020
EPA 353.2
0,04 mg/L
06/13/2020
EPA 353.2
0,77 mg/L
06/22/2020
Subtraction Method
0.73 mg/L
06/25/2020
Report#:: 2020-09789 Page 1, of 5

Environmental Chemists, Inc.
6602 Windni ll WWI Wilmington, NC 28405 * 910,39102„ Lab 6 91 ,392,4424 Fax
710 BoxN,scrtown Road, Mariteo, NC 27954 a 252 4 3 5702 Lab/Fax
2'~5-A'ITilm ng-Lo Highw N, Jacksoi-t r 'ie, NC 'S54°I) * 910,31 f 5843 t"ab/-Pax
ANALYTICAL & CONSULTING CHEMISTS
Ei C-Chapel Full
Date of Report: Jun 26, 2020
1120 Estes Drive Extension
Customer PO #:
Chapel Hill NO 27599-1650
Customer ID: 13060013
Attention: Larry law, L.G.
Report : 2020-09739
Project ID: UNC-Bingham monitoring
wells
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
20-24467 Site: MW-3
6/12/2020
12:20 PM Water Ergo McHorney
Test
Method
Results Date Analyzed
Color
Color
mostly Clear
06/12/2020
Depth to water, ft.
Depth to water, Ft
4.3 feet
06/12/2020
Ammonia Nitrogen
EPA 3501
< 0.2 mg/L
06/17/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
06/12/2020
Odor
Qualitative
None
06/12/2020
Total Dissolved Solids (TICS)
sin 2540 c
63 mg/L
06/12/2020
Temperature
sM 2550 s
17.5 C
06/12/2020
Chloride
sir 4500 cl
5 mg/L
06/17r2020
pH
sin 4500 H B
5.7 units
06/12/2020
Total Phosphorus
SM 4500 P F
0.07 mg/L
06/23/2020
Total Organic Carbon (TOC)
sip 5310 B
0.9 mg/L
06/22/2020
Fecal Coliform
SM 9222D MF
12 Colonies/100mL
06/12/2020
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
06/13/2020
Nitrate+ N itrite-N itrogen
EPA 353.2
0,06 mg/L
06/22/2020
Nitrate Nitrogen
Subtraction Method
0.06 mg/L
06/25/2020
Report #:: 2020-09789 Paae 2 of 5

40,2-ftj
ANALYTICAL & CONSULTlNG CHEMSTS
Environmental Chemists, Inc.
6602 Whidmill V'Jay, Wflmington, NC 28405 1, 910.392,0223 Lab o 910,392,4424 Fax
' "10 Bowsertown Road, klantco, NC 27954 - 2-52,47'�.�57'02 Lab/Fax
25;-AWilm'n)nFlighway,,jackqonvil'�e,NC28540 0 910.347-5843 Lab /Fax
UNC-Chapel Hill
Date of Report: Jun 26, 2020
1120 Estes Drive Extension
Customer PO #:
Chapel Hill NC 27599-1650
Customer ID: 13060013
Attention: Larry Daw, L.G.
Report #: 2020-09789
Project ID: URIC -Bingham monitoring
wells
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
20-24468 Site: MVV-4
6/12/2020
10-10AM Water Eric McHorney
Test
Method
Results Date Analyzed
Color
Color
Lt Tan/Turbid
06/12/2020
Depth to water, ft.
Depth to Water. Ft.
17.3 feet
06/12/2020
Ammonia Nitrogen
EPA 3501
< 0.2 mg/L
06/1712020
Gallons bailed before sampling
Gallons Bailed before sampling
5,0gallons
06/12/2020
Odor
Qualitative
None
06/12/2020
Total Dissolved Solids (TDS)
SM 2540 C
45 mg/L
06/12/2020
Temperature
SM 2550 B
17,2 C
06/12/2020
Chloride
SM 4500 Cl E
< 5 mg/L
06/17/2020
pH
SM 4500 H B
5,6 units
06/12/2020
Total Phosphorus
SM 4500 P F
0.05 mg/L
06/23/2020
Total Organic Carbon (TOC)
SM 5310 B
1.0 mg/L
06/22/2020
Fecal Coliform
SM 9222D MF
11 Colon ies/1 OOmL
06/12/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
06/13/2020
Nitrate+Nitrite-Nitrogen
EPA 3512
0,29 mg/L
06/22/2020
Nitrate Nitrogen
Subtraction Method
0,29 mg/L
06/25/2020
Report #:: 2020-09789 Pace 3 of, 5

s�.
t
spy:,
ANAL i AF & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 IrVindmfll'Alaty, Wilmington, NIC 28405 * 910392,022 ;Fab 9 0,392 449e € ax
71() Bowsertoivn Road, Manteo, ETC 27933 & 232473.3702 Lab/Fax
255-.A Wilmington Highwav, Jacksonville, Nip 28540 s 91.0 3-47 `843 Lab /Fax
ITi ?+Gc�„;?1, irC?Ilit2�;Ti�.s1��'�5E',tlIiSts.i;CTZl1
UNC-Chapel Hill Date of Reports Jun 26, 2020
1120 Estes Drive Extension Customer PO #o
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #® 2020-09789
Project ID; UNC-Bingham monitoring wells
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-24469 Site: MW-5 6/12/2020 12:05 PM Water Eric McHorney
Test
Color
Depth to water, ft.
Ammonia Nitrogen
Gallons bailed before sampling
Odor
Total Dissolved Solids (TDS)
Temperature
Chloride
pH
Total Phosphorus
Total Organic Carbon (TOC)
Fecal Coliform
Nitrate Nitrogen (Cale)
Nitrite Nitrogen
Nitrate+Nitrite-Nitrogen
Nitrate Nitrogen
Method
Results
Date Analyzed
Color
Clear
06/12/2020
Depth to water, Ft.
13.7 fleet
06/12/2020
EPA 350.1
< 0.2 mg/L
06/18/2020
Gallons Bailed before sampling
5.0 gallons
06/12/2020
Qualitative
None
06/12/2020
SM 2540 c
229 mg/L
06/12/2020
SM 2550 B
16.9 C
06/12/2020
SM 4500 Cl E
23 mg/L
06/17/2020
SM 4500 H B
7.5 units
06/12/2020
SM 4500 P F
< 0.04 mg/L
06/23/2020
SM 5310 B
0.8 mg/L
06/22/2020
SM 9222D MF
<1 Colonies/100mL 06/12/2020
EPA 353.2
< 0.02 mg/L
06/13/2020
EPA 353.2
< 0.02 mg/L
06/22/2020
Subtraction Method
<0.02 mg/L
06/25/2020
Report #:: 2020-09789 Paae 4 of 5

Environmental Chemists, Inc.
66(-)2 Windr-ii'11'01ayl Wilmington, NC 2840'; * 910.392,011223 Lab a 910,392.442-4 Fax
10 Bowsertown Road, Manted, NC 27954 0 252.473.5702 I-ab/Fax
255-A Wilmii-igton High-ovay, Jacksonv ifle, NC 28540 * 0.347,
911
- 0 1 -5843 Lab/'Fax
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill Date of Report: Jun 26, 2020
1120 Estes Drive Extension Customer PC #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #: 2020-09789
Project ID: ZINC -Bingham monitoring wells
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-24470 Site: MW-6 6/12/2020 11:10AM Water Eric McHorney
Test
Color
Depth to water, ft.
Ammonia Nitrogen
Gallons bailed before sampling
Odor
Total Dissolved Solids {TDB)
Temperature
Chloride
pH
Total Phosphorus
Total Organic Carbon (TOC)
Fecal Coliform
Nitrate Nitrogen (Ca1c)
Nitrite Nitrogen
Nitrate+Nitrite-Nitrogen
Nitrate Nitrogen
(-nMMnn+W
Color
Depth to Water, Ft.
EPA 350.1
Gallons Bailed before sampling
Qualitative
SM 2540 C
SM 2550 B
SM 4500 C1 E
SM 4500 H B
SM 4500 P F
SM 5310 B
SM 9222D MF
EPA 353.2
Subtraction Method
Reviewed by. KQJ_ dcz ,
Results
Clear
18A feet
< 0.2 mg/L
5.0 gallons
None
277 mg/L
17.6 C
21 mg/L
06/17/2020
6.6 units
06/12/2020
0,06 mg/L
06/23/2020
1,0 mg/L
06/22/2020
<1 Colonies/100ml-
06/1212020
06/14/2020
06/22/2020
06/25/2020
Report #:: 2020-09789 Page 5 of 5

Date:
AA
R
Certifleation # 94
Facility Name:
Permit 4:
41,
nH
ad: S%14500 H+B -'-Of I
Cat _B U f! el r 1 10 0 s u.
C heck DB U I Tic r 7/ UO 5 U,
=Ed>---I
s7
'pH check buffer must read within ± 0 1 pH units of the buffer's true value.
4 so butler Lot#/ _2Ricca _2I B11,20 _90179 7 so buffer Lot#/ Ricca 2808744 Eats7/10 0 so buffer [,at# Ric, 2905A94 Ex 10,10
,2_
sample Lorrection
Sample location
SampleAmflysis pH ResultPost-analysis—_B—UtT-e­­r 7
110�
I
Time#
I rime*s a Check value s u
A-,,—
ii
PA Li
Post analysis buffer check is required when performing analyses at multiple sampling locations an must be within 0 11 units of the
ip
ail pH values in pH units 0 e , a u,). Rectud all data to
the nearest o Cif s u, and repair to the nearest I s U,
Total Residual Chlorine
Reference Method! SM 4500 Cl-G201 I Hach 8 167 1 1W ITRC)
(Please circle app icable Method Instrumic
Daily Check frost -analysis Time check
Check Std,
- Sample Sample
Sample ampe
Standard Result Standard
iwhen analyzing
ag/L Analyzed
Collection rRC Result
Location Analysis
Loca I
pg/L or mg
at multiple S
sites)
T
Time Time
Comments/Data Qualifiers
7.7777 true �7ne
it Ild- ECHEM-04)02
Comments/Data Qualifiers
I - RIC Daily Check Standard true value— Rg/L or mg/L acceptance range L
Check standards must recover within --i� 10% ofthe check standard's true value g/ Is r i il L
-Ximuid Calibration Curve Verification Date:
Reagent Blank Value- —(When applicable, Analyze and document a reagent blank when standards, sample dilutions or P'T Samples are prepared)
Dissolved Oxygen (DO)
Reference Method SM 4500 0 GA011 Instrument ID ECHUM-DO-002
I
i lib ca calibration
C,ilibranon/ Calibration variable Meter reading i fast-analysisj
i . enfication (when necessary) i Verificatron % efficiencv i
1,11ne Comments
i Barometric after calibration I
i I "heoretical I Calculated
rcirperature i — I I -
Sample Location
Sample Collection Sample Analysis
I T _D0,ead.ng
I I rime I "Im mad,
I se this roo, Aheii perforriumit a —verification Instead of
Comments/Data, Qualifiers
When performinganalsses at multiple locations, the meter must be recalibrated at Cach site before anaivsis m,Ora
31 Is in ilic I!­1sI1,mo,w lirlsll[C, oi![% ;1inctil, /t:d ,�,jfld !,v, rL" P cis t -anaivsis calibration verification frust he performed
� I I �(­dcd"idld - lh—
Temperature
Reference 'vlethot:f SM 2550 B-2010 i"isolimer"! ID
Sample Sat fle FenIveratUre
Sample Location Collection
Analysis
CornmcrusiDara Qualifiers
rime Lune
10 t
Allk W--3
9
1' irnric. is inc xiuisd Viul Ail'Vor
Annual Verification Date _d owd ro!" li,.il 01c" '11,, In �:tIi j
2Q20
Rev 0-1 20 19 DOC'ox,00l

Diate:
knalysit: �' , I/N c 14-
I Ca! Buffer ! 0 0 s u.
7 77
IpH check buffer trust read within ± 0.1 pH units of the buffer's true value
Certification ss 94
Facility Nanne-
Permit iiii.
F
to clethod: SM4500 H+B -2011
Check Buffer 7 0 s u.
' 'su `�'ec' Buffer 77 7 , 7v
4 su butTer Lot#/ _Rlc,,
�ZQO 1791 �Exl 2/20
7 su butTer Lor#/
Ricca 2808744 Exrt 7/70
Sample location
Sample Collection
77.7ple—Analysis �IpH Result i *Post -analysis Buffer
Time*
Time* I
Sit Check value s u,
AN V-1
A,
A --I
IS-)
I0, so but 1, cite Ricca 2905A94 Exn lilvin
Comments/Data Qualifiers
NO- Post analysis buffer check is required when performing analyses at multiple sampling locations and must be within zi, 0-1 units of the but true value
X11 pH values in PH units 0 e, s u,f Recoil all data to the nearest 0 01 s,u. and report to the nearest 0 1 s i,r
Reference !Methoth SM 4500 CI-62011 Hach 8167 HR: Total Residual Chlorine (TRC)
— --------- I Please circle applicable Method Instrument ID: ECHEM-0-002
Post -analysis
Daily Check Check Std. Timecheck Sample C Sample Sample rRC Result
Standard Result (when analyzing Standard Location Collection Analysis CommentsiDant Qualifiers
Ng or mg/L Analyzed Time Time
at multiple qlte-1 ugiL or mg/L
f'RC Daily Check Standard true value Ag/L or mg/L acceptance range_Ag/L or mg/L
Check standards must recover within +- 10% of he check standard's true value
Annual Calibration Curve Verification Date:
Reagent Blank Value:
,—(When applicable. Analyze and document a reap ,ent blank when standards, sample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference Met 4500 0 G -2011 instrument IDECUEM-DO-002
I
Calibration/ Calibration variable # Post -analysis calibration
Meter reading
V „ n fica or "s efficiencv erification (when necessary)
Comments
iIBarometric
after calibration
Theoretical
I Calculated
Pressure VA.- i I
Sample Collection
Sample Location Sample Analysis —F—ED65 —reading
— ­ 1' me I rime I
I W this ron, Aheu Performing a r "11-1catio. instead of
CortirrientscData Qualifiers
When performing analyses at arulliple locations, the meter must be recahbrated at each site before analysis or a PO!o-anal}sls calibration serificatron must be performed
1! �, vllrhc is wCa2A1r­d Joo Cclk 1n, the .:cant indiot on�lt_ oilk mak /Ud owur_j i-c 711" k[ I
remperature
Rei'crence Method SNI 2550 B-2010 instrument 1D ECIUM—ti-nna
ample Sarnple
Sample Location
C011ection Analysts Corro nenucData Qualifiers
rime r me
M 5
G 4
d0r ol! Ml, ",:d tmd-(��,tith,.% m", in­
.Isw "I In di,llc­
,nnUal Verification Date 1 2020
Field Petwonnel Note:
DOC,(�vo(ll
Rev 07 1019

4M*I*l
gainst Bottles
!L4AWMfWT*
AW
r
hin mrnutes�
'OC/Volatiles are pH checked
at time of analysis and recorded on the benchsheet,
Bacteria samples are checked
for Chlorine at time of anaiysis and recorded on the benchSheet.
SaMple Preservation:
Must be completed for any sample(s) in—correctly—
Sample(s) preserved or with headspace)
'vere received incorrectly preserved and were adjusted accordingly
by adding (circle one): H,SO, HNOI HCJ NaOH
Time of preservation: if more than one preservative is needed, notate in comments below Note, Notify customer servtce minediately for mcor-prti%, nrac-.g
motif""
Lou=

4g=
ENVIRONMENTAL CHEMISTS,
6602 Windmill Way Wilmington, NC 28405
INC OFFICE: 910-392-0223 FAX [phone]
Analytical & Consulting Chemists
NCDENR: DWO CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 infoOenvironmentalchemists.com
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells; REPORT NO:
ADDRESS: 1120 Estes Drive Extension CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650 REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKim&Creed)
email: [e-mail]
Samplet, 41
SAMPLE TYPE: I e Influent, E Effluent, W = Well, ST ® Stream, SO Soil, SL = Sludge, Other:
Collection n cc PRESERVATION
Sample Identification
0 �c
CL 8 T
CL E 0 z 0
0 0 0 ANALYSIS REQUESTED
Date
E 0 0 0
Time Temp z z X
z
X z 0
C P
Well: 3,0
rA- G G X
TDS, Chloride, Nitrite
Depth to water:
G G TXN6,
NI-13, Total P
C P
gallons balled-
G G X
T C
0(
C P
t_al
211(field). (,O�-
G G
X TX Fee Coliform
C P
field odo F7
G G;', X
VOC's (December)
C P
J
color,
r
G G
C P
G G
C P
G G
C P
G G LLLJ
Wells(total of 5) due to be sampled in March, June, September, December (MW1,3,4,5,6)
Transfer r
Relinquished By: I Date/Tim
Date/Time
1.
17,
Temperature when Received: —Accepted:---AZ-------- Rejected ------.—Resa1rnp1e R qu sted:
Delivered By:-- __Received Date: Timer"
Comments: TURNAROUND:

4=10
Analytical & Consulting Chemists
Client: UNC-Chapel Hill
ADDRESSII : 1120 Estes Drive Extensior
Chaoel Hill. NC 27599-1650
I
Sample Identification
Welk
Depth to water:
gallons iled-
pH(field): xi
field odor-
color-
1 .
2.
Temperature when
Delivered By:—,-�",'.'
C
R6602 Windmill Way Wilmington, NC 284
ENVIONMENTAL CHEMISTS, IN OFFICE: 910-392-0223 FAX [phone]
NCDENR: DWO CERTIFICATION # 94 NCDHHS: DLS CER71FICATION # 37729 infoOenvironmentalchemists.com
COLLECTION AND CHAIN OF CUSTODY
REPORT NO:
,CONTACT NAME:
REPORT TO: Larry Daw, L.G.•
........... email: [e-mail]
SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stre
C61lection
C.
PRESERVATION
ILI
0
:2
g
'W
M '
1E
.t "Mom
0 W
Date
Temp
W
0
U
0 CL
0 CT.7
z
0 0
z 0 z z P
ej)
(C
P
/JI)o
11'�"Allp-- )'-I S"'
®
G
D(44o-)
X
C
P
G
G
x
C
P
G
G
x
C
P
G
G
x
C
P
G
G
x
C
P
G
G
C
P
G
G
C
P
G
G
C
P
led in March, June, September, December (MW1,3,4,5,6)
Relinquished By:
I
DatefTime
Received BY:
SO = Soil, St. = Sludge, Other:
ANALYSIS REQUESTED
NO3, NH3, Total P
W0
-A&u�l,Xo Time: '3
TURNAROUND:

6602 Windmill Way Wilmington, NC 28405
44= ENVIRONMENTAL CHEMISTS, INC OFFICE: 910-392-0223 FAX [phone]
Analytical & Consulting Chemists NCDENR: DWO CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: LINC-Chapel Hill PROJECT NAME: UNC-Bingham Monitoring wells REPORT NO:
ADDRESS: 1120 Estes Drive Extension !,CONTACT NAME: PO NO:
Chapel Hill, NC 27599-1650 !1 REPORT TO: Larry Daw, L.G. THONE/FAX:
MtOPY TO: Chuck Riley, PE (McKim&Creed) email: [e-mail]
Sampled BY: t ,- �,,-
Sample Identification
Well: �"-'! ­ L4
Depth to water -
allows bailed:
pH(field):
field odor, jQ-q'
color: k J� 1%
ells total of 5) due to be sampi
Transfer
Temperature when Received:
Delivered By:
Comments:
in March, June, Septet
Relinquished
SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
PRESERVATION
CL
4 8 S
z 0 0
0
Uj
ANALYSIS REQUESTED
E
E
0
C
0 d
'42
M
z
01 0
0 z
z
S!
z
X
0
C
P
G
G
X
TDS, Chloride, Nitrite
C
P
G
G
N63, NH3, Total P
C
P
G
G
X
TOC
F-1
C
P
P
G T
G
X
Fecal Coliform
Fecal Coliform
C
C
P
IVOC's
G
G
G
X
(December)
C
C
P
G
G
X
C
P
GG
C
P
G
G
C
P
G
G
December (MW1,3,4,5,6)
Datefrim
DatefTime
Ilu Received �sll!����1�III II�1
By:—
III
6'ul7eea:
J 0III- Time: '3 P
TURNAROUND:

44=
ENVIRONMENTAL CHEMISTS,
6602 Windmill Way Wilmington, NC 28405
INC OFFICE: 910-392-0223 FAX [phone]
Analytical & Consulting Chemists
NCDENR: DWO CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO: ).,z, C"t-)
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
,COPY
TO: Chuck Riley, PE (McKim&Creed)
Sampled By— AA, f-
SAMPLE TYPE: I Influent, E = Effluent, W m Well, ST ® Stream, SO Soil, SL = Sludge, Other:
Collection PRESERVATION
ScZ
Sample Identification
0
CL8 T 2 8
E 0 C < 2 z 0
0
0 0
ANALYSIS REQUESTED
D ate
0 D 0
z
Time Temp z
z
z
0
P
Well: mv -
—C
G G X
TDS, Chloride, Nitrite
C P
IN
Depth to water'.
G G X
NH3, Total P
C_ P
2allons bailed- S
G G X
TOC
C P
-4 "1
pH(field):
G G
#1
X
Fecal Coliform
C P
field odor:
G G X
VOC's (December)
C P
color, C­",,V'
G G
C P
G G
C P
G G
C P
Wells(total of 5) due to be sampled in March, June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By: Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received:
___Accepted: V 7- ___Rejected:__________ResampIe
Requesjed:___
Delivered y®_ Received By:
Comments:
Time:
ff flazlUff 0-14"t

6602 Windmill Way Wilmington, NC 28405
44M ENVIRONMENTAL CHEMISTS, INC OFFICE: 910-392-0223 FAX [phone]
Analytical & Consulting Chemists NCDENR: DWO CER71FICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill JECT NAME: UNC-Bingham Monitoring wells REPORT NO:
ADDRESS: 1120 Estes Drive Extension !ICONTACT NAME:
Chapel Hill, NC 27599-1650
!COPY TO: Chuck Riley, PE (McKim&Creed)_ email: [e-mail]
Rim
Sample Identification
Well- N'- to
va
to water: d i
s bailed.-
ld): 6 "5--7
field odor- Li1Z.—.L,
color: e,, U,,,
ells total of 5) due to be
Transfer
Temperature when Received: -
Delivered By:
Comments:
M�
WITMAW1,
shed
SAMPLE TYPE: I = Influent, E Effluent, W = Well, ST = Stream, SO = Soil, St. = Sludge, Other: -
PRESERVATION
ANALYSIS REQUESTED
I
E 0 0 e:1
-W1 z 5
z 0
z
z�O r--
0
C P
G G
)-44 X
FDS, Chloride, Nitrite
C P
G— G
X
463, NH3, Total P
C P
G G
X
TOO
C P
G G
X
Fecal Coliform
C P
G G
X
VOC's (December)
C P
G G
G
P
C P
G G
C P
G G
C P
G G
December (MW1,3.4.5.6)
Rejected: steel: ResamplR
Date: 777Time: --,�,
TURNAROUND:

7 q1
Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ` 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ' 252.473.5702 Lab/Fax
sM 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Lab ID Sample ID:
20-39290 Site: MW-1
Test
Color
Depth to water, ft.
Ammonia Nitrogen
Gallons bailed before sampling
Odor
Total Dissolved Solids (TDS)
Temperature
Chloride
pH
Total Phosphorus
Total Organic Carbon (TOC)
Fecal Coliform
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
Nitrate+Nitrite-Nitrogen
Nitrate Nitrogen
Date of Report: Sep 21, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-15441
Project ID: UNC-Bingham monitoring wells
Collect Date/Time Matrix Sampled by
9/10/2020 10:00 AM Water Eric McHorney
Method Results Date Analyzed
Color
Lt Tan/Mild Turb
09/10/2020
Depth to water, Ft.
32.6 feet
09/10/2020
EPA 350.1
< 0.2 mg/L
09/11 /2020
Gallons Bailed before sampling
5.0 gallons
09/10/2020
Qualitative
None
09/10/2020
SM 2540 C
63 mg/L
09/11 /2020
SM 2550 B
18.3 C
09/10/2020
SM 4500 Cl E
< 5 mg/L
09/14/2020
SM 4500 H B
6.0 units
09/10/2020
SM 4500 P F
0.21 mg/L
09/16/2020
SM 5310 B
<0.5 mg/L
09/17/2020
SM 9222D MF
<1 Colonies/100ml-
09/10/2020
EPA 353.2
EPA 353.2
Subtraction Method
0.03 mg/L
09/10/2020
0.76 mg/L
09/14/2020
0.73 mg/L
09/17/2020
Report #:: 2020-15441 Page 1 of 5

envirochem
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab ' 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ' 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Sep 21, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-15441
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID:
20-39291 Site: MW-3
Test
Collect Date/Time
9/10/2020 11:25 AM
Method
Matrix Sampled by
Water Eric McHorney
Results Date Analyzed
Color
Color
Mostly Clear
09/10/2020
Depth to water, ft.
Depth to Water, Ft.
6.3 feet
09/10/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
09/11/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
09/10/2020
Odor
Qualitative
Mild Sulfur
09/10/2020
Total Dissolved Solids (TDS)
SM 2540 C
59 mg/L
09/11/2020
Temperature
SM 2550 B
20.9 C
09/10/2020
Chloride
SM 4500 Cl E
< 5 mg/L
09/14/2020
pH
SM 4500 H B
5.8 units
09/10/2020
Total Phosphorus
SM 4500 P F
0.11 mg/L
09/16/2020
Total Organic Carbon (TOC)
SM 5310 B
1.1 mg/L
09/17/2020
Fecal Coliform
SM 9222D MF
<1 Colonies/100ml-
09/10/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
09/10/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
< 0.02 mg/L
09/14/2020
Nitrate Nitrogen
Subtraction Method
<0.02 mg/L
09/17/2020
Report #.. 2020-15441 Page 2 of 5

F-7-70-7irochem
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab ' 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ' 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill Date of Report: Sep 21, 2020
1120 Estes Drive Extension Customer PO #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #: 2020-15441
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-39292 Site: MW-4 9/10/2020 9:40 AM Water Eric McHorney
Test Method Results Date Analyzed
Color
Color
Mostly Clear
09/10/2020
Depth to water, ft.
Depth to Water, Ft.
19.2 feet
09/10/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
09/11/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
09/10/2020
Odor
Qualitative
None
09/10/2020
Total Dissolved Solids (TDS)
SM 2540 C
47 mg/L
09/11/2020
Temperature
SM 2550 B
17.9 C
09/10/2020
Chloride
SM 4500 Cl E
< 5 mg/L
09/14/2020
pH
SM 4500 H B
5.8 units
09/10/2020
Total Phosphorus
SM 4500 P F
0.07 mg/L
09/16/2020
Total Organic Carbon (TOC)
SM 5310 B
1.3 mg/L
09/17/2020
Fecal Coliform
SM 9222D MF
3 Colonies/100mL
09/10/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
09/10/2020
Nitrate+Nitrite-Nitrogen
EPA353.2
0.21 mg/L
09/14/2020
Nitrate Nitrogen
Subtraction Method
0.21 mg/L
09/17/2020
Report #:: 2020-15441 Page 3 of 5

jenvirochem
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab ' 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ' 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill Date of Report: Sep 21, 2020
1120 Estes Drive Extension Customer PO #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #: 2020-15441
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-39293 Site: MW-5 9/10/2020 11:05 AM Water Eric McHorney
Test
Method
Color
Color
Depth to water, ft.
Depth to Water, Ft.
Ammonia Nitrogen
EPA350.1
Gallons bailed before sampling
Gallons Bailed before sampling
Odor
Qualitative
Total Dissolved Solids (TDS)
SM 2540 c
Temperature
SM 2550 B
Chloride
SM 4500 Cl E
pH
SM 4500 H B
Total Phosphorus
SM 4500 P F
Total Organic Carbon (TOC)
SM 5310 B
Fecal Coliform
SM 9222D MF
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
Nitrate+Nitrite-Nitrogen
EPA 353.2
Nitrate Nitrogen
Subtraction Method
Results Date Analyzed
Clear
09/10/2020
14.8 feet
09/10/2020
< 0.2 mg/L
09/11 /2020
5.0 gallons
09/10/2020
None
09/10/2020
234mg/L
09/11/2020
18.5 C
09/10/2020
22 mg/L
09/14/2020
7.5 units
09/10/2020
0.15 mg/L
09/16/2020
1.1 mg/L
09/17/2020
<1 Colonies/100ml-
09/10/2020
< 0.02 mg/L
< 0.02 mg/L
<0.02 mg/L
09/10/2020
09/14/2020
09/17/2020
Report #. 2020-15441 Page 4 of 5

[en7virochhem]
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab ' 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 * 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill Date of Report: Sep 21, 2020
1120 Estes Drive Extension Customer PO #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #: 2020-15441
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-39294 Site: Mw-6 9/10/2020 10:30 AM Water Eric McHorney
Test
Method
Color
Color
Depth to water, ft.
Depth to Water, Ft.
Ammonia Nitrogen
EPA 350.1
Gallons bailed before sampling
Gallons Bailed before sampling
Odor
Qualitative
Total Dissolved Solids (TDS)
SM 2540 C
Temperature
SM 2550 B
Chloride
SM 4500 Cl E
pH
SM 4500 H B
Total Phosphorus
SM 4500 P F
Total Organic Carbon (TOC)
SM 5310 B
Fecal Coliform
SM 9222D MF
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA353.2
Nitrate+Nitrite-Nitrogen
EPA 353.2
Nitrate Nitrogen
Subtraction Method
Comment: t
Reviewed by: - o
Results Date Analyzed
Clear
09/10/2020
18.7 feet
09/10/2020
< 0.2 mg/L
09/11 /2020
5.0 gallons
09/10/2020
None
09/10/2020
260mg/L
09/11/2020
21.1 C
09/10/2020
19 mg/L
09/14/2020
6.6 units
09/10/2020
0.16 mg/L
09/16/2020
1.2 mg/L
09/17/2020
<1 Colonies/100ml-
09/10/2020
< 0.02 mg/L
< 0.02 mg/L
<0.02 mg/L
09/10/2020
09/14/2020
09/17/2020
Report #n 2020-15441 Page 5 of 5

Date: c4hx� l a O
%nalyst .
Certiflcation # 94
Facility.Name: (APE -13It-1kc ..... MWrS
Permit #:
pH
Calibration Time
C>all Buffer 4 0 s u
Cal Buffer 10 0 s u
Check Buffer 7 0 s u
Comments
-pn cnecK ouuci must ruau µnnm x u I pn units of the ousters true %ague
4 su buffer Lot#/ Ricca 2901791 ExD 1120 7 su buffer Lot#/ Rocca 2808744 Exo W20 10 su butler Lot# Ricca 2905A94 Exv 10,,20
Sample location
Sample Collection
Sample Analysis
Time*
pH Result
Su
►Post -analysis Buffer
Check values u
CommzntsData Qualifiers
M i,j -- 5'
I l lb 19- A-•-
I t 0 "1 /1^
'I �
M
A---
0
- ••� - + .•.•. �,��� ,� ,�.{,+• ^ ,� i.—.„I ..6 dual) °p - IIIUItlp10 °dlllp,l,lr 1ULdLIUlls anu must De µi(nln = U I units of me Dul[ers true i aiue
\ II pH Values in pH units It e . s u ) Recol.l all data to the nearest 0 01 s u and report to the nearest 0 1 s u
Total Residual Chlorine (TRC)
Reference kleihnd• CM ainn ('i_(.,)ni i P -h AIA7 14R I Di-. -,.I_ .,....1.,...I,1-....—
Daily Chick
Post -analysis
Time check
Sample
Sample
Standard Result
Check Sid
(µhen analyzing
Standard
Sample
Location
Collection
Analysis
rRC Result
ug./l or mg/L
Comments/Data Qualifiers
ugiL or mg/L
at mule le sites)
Analyzed
Time
Time
, M`­ Uany I-uccK .Trdnuaru tfUU N dJUC )lg/L or mg/L acceptance range pg/L or me/L
Check standards must reco%er within :i: 10% of the check standard's true %slue
\nnual Calibration Curie Verification Date:
Reagent Blank Value - _.•_ _ _ _i When applicable. Anahze and document a reagent blank I.0en standards. ,ample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
QPI}rx.nre ki-k vt CM aGnn (1 !': _7nI i 1_-....... ._. Ifl
Calibration/ Calibration tanable
Verification
I imz Barometric
1 r mpera[ure Pressure
Meter reading
or ° o efficiency
after calibration
I Post -analysis calibration
tentication (µhen necessary)
Comments
� I
Theoretical
Value m
Calculated
Value mgiL
I
I
i
i
1 se this rot( µhru perhinuing a terititution insle,id of
'alibration
Sample Location
Sample Collection
Time
-Sample Analysis
Time
DO reading
mg/L
CommentsiData Qualifiers
-• ••-•• r`•••"•�•�•^5 ��+ •.. �••..•.•N.� Iv�uumu, tile. uium n,un Uc Ic'duuldtou .0 caal site uciurc anai�sis Ora post-anai\sis calibration veriticatlon intAt be peribrmed.
n:u,ur(•d !real% !n ilic ,(ream ind:(a oti:rt_,. oiu% 1 Ire u•dk i_d uliul.l :r r_a,•urd v. th -, `01, ti .a'hc-•• In_ nr,l,u;cu tit ,nu nr
Temperature
Sample Sample
Sample Location I Collection :\nalysis I
i 'rime lime
Temperature
°C i Comments. Data Qualifiers
W — l �S/d� �• t�'i �.
S'
I
- - -----` ---...---.. . .._ .. _ .... .. •.,. .,..• . .,:_ . . . • ....... n,n .... u.­­ - i-_..,n,._u •. -li, .I 1'(Ii 1, .a i�,.:• .,, r _.IS (1, :.� in S; tti Ili .rI i7 C111.1��,•
\nnual Verification Date 1 2020
Field Personnel Note:
Rev 07 2019

Environmental Chemist, Inc., Wilmington, NC Lab #94
6602 Windmill Way
Wilmington, NC 28405
910.372. 0223
Sample Receipt Checklist
Client: Date u Report Number:,
Receipt of sample:
Delivered CR UPS ❑ FedEx ❑ Other ❑
❑ YES
❑ NO
N/A
11. Were custody_seals present on the cooler?
❑ YES
10 NO
N/A
12. If custody seals were present, were they intact/unbroken?
Original temperature upon receipt 3 —°C Co rected temperature upon receipt °C
How temperature taken:
❑ Temperature Blank Against Bottles
IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor °C: 0.0
❑ YES TO NO
IVvGc r-1 %in
3. If temperature of cooler exceeded 6°C, was Project Mgr./QA notified?
A ,.,--- -
-I --
I -
••--
- --- r1UN=l,.u3.LJUyN1ULt!uure5treiinquisneo/received)tollowed?
YES
10
NO
5. Were sample ID's listed on the COC?
YES
❑
NO
6. Were samples ID's listed on sample containers?
YES
10
NO
7. Were collection date and time listed on the COC?
YES
10
NO
8. Were tests to be performed listed on the COC?
YES
10
NO
9. Did samples arrive in proper containers for each test?
YES
10
NO
10. Did samples arrive in good condition for each test?
YES
10
NO
11. Was adequate sample volume available?'
YES
❑
NO
12. Were samples received within proper holding time for requested tests?
113.
YES
1101
NO
Were acid preserved samples received at a pH of <2?
❑ YES
10
NO
114. Were cyanide samples received at a pH >12?
❑ YES
10
NO
115. Were sulfide samples received at a pH >9?
YES
❑
NO
16. Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L? **
❑ YES
❑
NO
17. Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L?
❑ YES
10
NO
18. Were orthophosphate samples filtered in the field within 15 minutes?
* TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation: (Must be completed for any sample(s) incorrectly preserved or with headspace)
Sample(s) were received incorrectly preserved and were adjusted accordingly
by adding (circle one): H2SO4 HNO3 HCl NaOH
Time of preservation: If more than one preservative is needed, notate in comments below
Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or
notify the state lab if directed to analyzed by the customer. Who was notified, date and time:
Volatiles Sample(s) were received with headspace
COMMENTS:
DOC. OA.002

Date: I(���
%nalrst:
Cert'n tion N 94
Facility Name: _(,IPALL " 13,6..r,Inct
Permit N:
pH
Reference Method swsoo H+R -?ni i Incrnim— in cruc%r_.,u_nne
Calibration Time
Cal Butfer4.0 s.u.
Cal Buffer 10.0 s.u.
Check Buffer 7.0 s.u.
-- ........ - -- -... ..
---
Comments
*pH check butter must read within t 0 1 pH units of the buffer's true value
4 su buffer Lodi/ Ricca 2901791 Exo 12/20 7 su buffer Lot#/ Ricca 2808744 Exo 7120 10 su buffer Lot# Ricca 2905A94 Exo 10+20
Sample location
Sample Collection
Time♦
Sample Analysis
Time*
pH Result
s u
No- Post -analysis Buffer
Check values u
Comments/Data Qualifiers
W - 1
tJ �UD/i
o , v 4_ --
%.
AA -
I I ls/�--
' a-� A—
g'
R
► Post analysis butter checK is required when pertormmg analyses at multiple sampling locations and must be within t 0 1 units of the buffer's true value
\11 pH salues in pH units (I e , s u ) Reco,.l all data to the nearest 0 01 s u and report to the nearest 0 1 s u
Total Residual Chlorine (TRC)
Reference Method: SM 4500 CI-G20I 1 Hach 8167 HR: I Please circle annhcahle Methrxi Incf-ment In cr uc�rs i1u»
Daily Check
Post -analysis
Check Std.
Time check
Sample
Sample
Sample
- .._.........
rRC Result
._ _�.. ... �.
Standard Result
(%vhen analyzing
Standard
Location
Collection
Analysis
ug/L or mg/L
Comments/Data Qualifiers
ug/L or mg/L
at multiple sites)
gnal%zed
Time
Time
I RC Daily Check Standard true %aloe µg/L or mg/L acceptance range µg/L or mg/L
Check standards must recover within f 10% of the check standard's true %slue
annual Calibration Curve Verification Date:
Reagent Blank Value. ( When applicable. Analyze and document a reagent blank when standards. ,ample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference Method SM 4500 O G.-201 I Instrument ID ECHENI-1304002
Calibration/
Venfication
rime
Calibration variable
Meter readmg
or oeflic!ency
alter calibration
• Post -analysis calibration
%enfication (when necessary)
Comments
Temperature
Barometric
Pressure
Theoretical
Value mg1L
Calculated
Value mg/L
i
I se this rue whru performing a ierificudoo insrrdd of
calibration
Sample Location
Sample Collection
Time
• Sample Analysis
rime
DO readingp
n
CommenwDataQualitiers
• When performing analyses at multiple locations, the meter must be recalibrated at each site before analysis or a post -analysis calibration verification must be performed
it .wnple Is mc3-iiwd directl% In the ,t!cam and,in „n}it,,. inn i:irle .utah itd x,ould be fe,oiocd n ih a •otr �Iw,t tl%% tic ncauncd tit ,iw ni uume:b.nch.
Temperature
Reference Method SM 25iO R-1010 1--­1 in cCucvil ..0 nni
Sample
Sample Location i Collection
rime
Sample
Analysts
rim-
Temperature
'C
-- - - - - - --... ............ ........- ..-., .
CommentsiData Qualifiers
0 '. W A--
1 0-0a,4--
I�.3
w-3 114M
114_7A,
W -,! j1'49A, 9' LPG
.I ,ariolc is Ine.6UICd .lirclt!', n i'ic woun and or tin ,tie ,inl•. tun. 3n6 zcJ ,+,nth[ 7c rccurusl ,�. tin .! nu!, !i�,n titc� ,u: rtc.tswal in suitor .mitwdi.itcf•
\nnual Verification Date 12020
Field Personnel Note:
DOC'.Q.%.001
Rev 07 2019

on, NC
ENVIRONMENTAL CHEMISTS, INC OFFICE: 9101392- 223'IFAX 910392-44245
Analytical & Consulting Chemists
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO:
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKim&Creed)
email: [e-mail]
Sampled By: f- v8L I ✓ SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
Sample Identification
ollection
a
"
E
�,
0
a o 2
o
a o
c a
""
w
O
c
UJ
m M
Z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
Z
o
Z
=
o
N
z
=
°a
Z
o_
=
w
o
Well: t'►W'- (
l �S• =
C
P
3i, `(�
X
TDS, Chloride, Nitrite
W ty Lo
10"CV'A--
G
G
Depth to water: 3 ct 1
C
P
ctZ
4- 4
X
Pik ,-
NO3, NH3, Total P
G
G
gallons bailed: S
C
P
X
TOC
G
G
pH(field): L
C
P
X
Fecal Coliform
G
G
field odor: &"-L
C
P
X
VOC's (December)
G
G
L—k- 'Cam.
color:
C
P
G
C
P
G
G
C
P
G
G
C
P
G
I G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received: -'S� Accepted:, Rejected: Resample Re ue ted:
Delivered By: li�iL�c Received By: G.�f,C� Date: � �,0 Time: ;1 , 3 0 /' "
Comments: 41 1 0 TURNAROUND:

6602 Windmill Way on, NC
ENVIRONMENTAL CHEMISTS, INC OFFICE: 910-392-2231IFAX 910- 92-44245
Analytical 8 Consulting Chemists
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO: —�
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKim&Creed)
email: [e-mail]
Samplea tiy: g.a �� tt'b SAMPLE
TYPE: I = Influent,
E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
Sample Identification
Collection
a
a
N
0
L
9c�
c°
" `
o
gW
00 2
J Z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
z
°
�
_
ao
_
0
=
0
z
°
~
w
o
Well: /�lLv-'3
_
`1
C
P
35 �-`1
X
TDS, Chloride, Nitrite
9 (s,,
II' lam-
G
G
Depth to water: ��'
C
P
X
NO3, NH3, Total P
G
G
gallons bailed: 5
C
P
X
TOC
G
G
pH(field): ��
C
P
X
Fecal Coliform
G
G
`
field odor: lot Two �e ✓
C
P
X
VOC's (December)
G
G
color: to s j U-•,/-
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received
Delivered By: -
Comments: l
S �3
Accepted: Rejected:
Received By: Z- t�- L- /i
le Requested:
6 Va;�n Time:p--
TURNAROUND:

on, NC
envirochem min
ENVIRONMENTAL CHEMISTS, I N C OFFICE: 910'392- 223'IFAX 910 392-44245
Analytical & Consulting Chemists
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO:
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKimBCreed)
email: [e-mail]
Sampled By: SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
Sample Identification
Collection
T
CL
N
a
° `o
_
c °
° a
vUj
c
¢ 2
J Z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
i
$
-�
_
o
_
0
0
z
°
w
o
Well: t%W —"
j'I.
C
P
X
lTDS, Chloride, Nitrite
q co
'4o
G
G
Depth to water: a� C
C
P
X
�N& NH3, Total P
G
G
gallons bailed: 5
C
P
X
�TOC
G
G
pH(field): S
C
P
X
Fecal Coliform
G
G
field odor: N -
C
P
X
VOC's (December)
G
G
color: a..� s� Lam+ v�
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received:
Delivered By:
Comments:
is Pf Reje
Received By:4��
Resample R qu sted:
_Date: Time: 2�—
TURNAROUND:

6602
l Way
ENVIRONMENTAL CHEMISTS, INC OFFICE: 0i1392-022311FAX910� 92-44245
Analytical 8 Consulting Chemists
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CIISTOIIY
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bin ham Monitoring wells
REPORT NO: >
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
r—
COPY TO: Chuck Riley, PE McKim&Creed
email: [e-mail]
Sampled Bv: RAMPLF TYPE- I = Influent F = Fffhianf W = Wall ST = Ctramm sn = Cnil Cl - Q1-4 a nfk—
Sample Identification
Collection
W F
0O
E° r;
_
c°
0 a
D
o
w
°0 2
g z
PRESERVATION
J
ANALYSIS REQUESTED
Date
Time
Temp
z
z
J
U)
"_
o
=
p
Z
o
w
o
Well:
Ir• S
C
P
3
X.
TDS, Chloride, Nitrite
Ito h.
(I'-os/I-
G
G
Depth to water: 1� I (
C
P
X
/)!-/<.L / C /1 c -
NO3, NH3, Total P
G
G
gallons bailed:
C
P
X
TOC
G
G
H(field): 'T q(o
C
P
X
Fecal Coliform
G
G
field odor: OoI\_a-
C
P
X
VOC's (December)
G
G
color: C (
C
P
G
G
C
P
G
G
C
P
G
G
C
P
-IT
G
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
I V111purdlure wnen meCeiveu: L
Delivered By: [�r�
Comments:
I'�
By:
;ample R qu sted:
Date: Time:—
TUR AROUND:

ton
ENVIRONMENTAL CHEMISTS, I N C OFFICE: 910 I392-02 3IFAX9910 392-44245
Analytical & Consulting Chemists NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 [e-mail]
COLLECTION AND CHAIN OF CUSTODY
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO:
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKimBCreed)
email: [e-mail]
Sampled By: cr,,Ll r SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
Sample Identification
ollection
T
F
"
E
N
«
y n
a `o 2
o
_
c C9
`o
c a
"'
w
w
O
o
2
m
�
Z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
w
o
Z
o
_
�'
M
z
x
°a
Z
o
=
W
_
o
Well: MIJ "
- 1
C
P
X
TDS, Chloride, Nitrite
G
G
Depth to water:
X
NO3, NH3, Total P
G
G
gallons bailed: S
C
P
X
TOC
G
G
pH(field): , ��
C
P
X
Fecal Coliform
G
G
field odor: .-,tif-
C
P
X
VOC's (December)
G
G
color: c`tc""
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
I G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received:
Delivered By:
Comments: r
ived By:
Rejected;
Time: ��o �—
ND:

r- - 70 --,Oqm I
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID:
20-52412 Site: MW-1
Test
Collect Date/Time
12/3/2020 11:45 AM
Method
Matrix Sampled by
Water Eric McHorney
Results Date Analyzed
Color
Color
Lt Orange/Turb
12/03/2020
Depth to water, ft.
Depth to Water, Ft.
33.5 feet
12/03/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
12/14/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
12/03/2020
Odor
Qualitative
None
12/03/2020
Total Dissolved Solids (TDS)
SM 2540 C
89 mg/L
12/05/2020
Temperature
SM 2550 B
16.3 C
12/03/2020
Chloride
SM 4500 Cl E
< 5 mg/L
12/17/2020
pH
SM 4500 H B
6.2 units
12/03/2020
Total Phosphorus
SM 4500 P F
0.28 mg/L
12/16/2020
Total Organic Carbon (TOC)
SM 5310 B
<0.5 mg/L
12/09/2020
1, 1, 1,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1, 1, 1 -Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2-Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trimethyl benzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromo-3-Chloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromoethane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578 Page 1 of 15

SM
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 . 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 . 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC
Attention: Larry Daw, L.G.
27599-1650
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
1,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,3,5-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,4-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
2,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
2-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
4-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
Benzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromodichloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromoform
SM 6200B
<0.5 pg/L
12/08/2020
Bromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Carbon tetrachloride
SM 6200B
<0.5 pg/L
12/08/2020
Chlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Chloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Chloroform
SM 6200B
<0.5 pg/L
12/08/2020
Chloromethane
SM 6200B
<0.5 pg/L
12/08/2020
cis- 1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
cis- 1,3-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
Dibromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Dibromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Dichlorodifluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Ethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Hexachlorobutadiene
SM 6200B
<0.5 pg/L
12/08/2020
Isopropyl benzene
SM 6200B
<0.5 pg/L
12/08/2020
M+P Xylene
SM 6200B
<1.0 pg/L
12/08/2020
Methylene chloride
SM 6200B
<0.5 pg/L
12/08/2020
Naphthalene
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578
Page 2 of 15

[envirrochem)
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
n-Butylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
n-Propylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
ortho-Xylene
SM 6200B
<0.5 pg/L
12/08/2020
p-Isopropyltoluene
SM 6200B
<0.5 pg/L
12/08/2020
sec-Butylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Styrene
SM 6200B
<0.5 pg/L
12/08/2020
tert-B utyl benzene
SM 6200B
<0.5 pg/L
12/08/2020
Tetrachloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Toluene
SM 6200B
<0.5 pg/L
12/08/2020
Trans-1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trans- 1,3-dichloropropene
SM 6200B
<0.5pg/L
12/08/2020
Trichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trichlorofluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Vinyl chloride
SM 6200B
<0.5 pg/L
12/08/2020
Fecal Coliform
SM 9222D MF
<1 Colonies/100mL
12/03/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
0.05 mg/L
12/04/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
0.75 mg/L
12/10/2020
Nitrate Nitrogen
Subtraction Method
0.70 mg/L
12/18/2020
Report #.. 2020-20578 Page 3 of 15

envirochem
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID:
20-52413 Site: MW-3
Test
Collect Date/Time
12/3/2020 12:25 PM
Method
Matrix Sampled by
Water Eric McHorney
Results Date Analyzed
Color
Color
Clear
12/03/2020
Depth to water, ft.
Depth to Water, Ft.
5.3 feet
12/03/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
12/14/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
12/03/2020
Odor
Qualitative
Sulfur
12/03/2020
Total Dissolved Solids (TDS)
SM 2540 C
70 mg/L
12/05/2020
Temperature
SM 2550 B
16.0 C
12/03/2020
Chloride
SM 4500 Cl E
6 mg/L
12/17/2020
pH
SM 4500 H B
6.3 units
12/03/2020
Total Phosphorus
SM 4500 P F
0.05 mg/L
12/16/2020
Total Organic Carbon (TOC)
SM 5310 B
0.9 mg/L
12/09/2020
1, 1, 1,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1, 1, 1 -Trichloroethane
SM 5200B
<0.5 pg/L
12/08/2020
1,1,2,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2-Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromo-3-Chloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromoethane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578 Page 4 of 15

Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ■ 910.392.4424 Fax
;srn 710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
1,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,3,5-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,4-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
2,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
2-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
4-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
Benzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromodichloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromoform
SM 6200B
<0.5 pg/L
12/08/2020
Bromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Carbon tetrachloride
SM 6200B
<0.5 pg/L
12/08/2020
Chlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Chloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Chloroform
SM 6200B
<0.5 pg/L
12/08/2020
Chloromethane
SM 6200B
<0.5 pg/L
12/08/2020
cis- 1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
cis- 1,3-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
Dibromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Dibromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Dichlorodifluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Ethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Hexachlorobutadiene
SM 6200B
<0.5 pg/L
12/08/2020
Isopropylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
M+P Xylene
SM 6200B
<1.0 pg/L
12/08/2020
Methylene chloride
SM 6200B
<0.5 pg/L
12/08/2020
Naphthalene
SM 6200B
<0.5 pg/L
12/08/2020
Report #-: 2020-20578
Page 5 of 15

6:n:v7irochem:]
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
info environmentalchemists.com
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
n-Butylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
n-Propylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
ortho-Xylene
SM 6200B
<0.5 pg/L
12/08/2020
p-Isopropyltoluene
SM 6200B
<0.5 pg/L
12/08/2020
sec -Butyl benzene
SM 6200B
<0.5 pg/L
12/08/2020
Styrene
SM 6200B
<0.5 pg/L
12/08/2020
tert-Butyl benzene
SM 6200B
<0.5 pg/L
12/08/2020
Tetrachloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Toluene
SM 6200B
<0.5 pg/L
12/08/2020
Trans- 1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trans-1,3-dichloropropene
SM 6200B
<0.5pg/L
12/08/2020
Trichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trichlorofluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Vinyl chloride
SM 6200B
<0.5 pg/L
12/08/2020
Fecal Coliform
SM 9222D MF
<1 Colonies/100ml-
12/03/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
12/04/2020
Nitrate+Nitrite-Nitrogen
EPA353.2
<0.02mg/L
12/10/2020
Nitrate Nitrogen
Subtraction Method
<0.02 mg/L
12/18/2020
Report #:: 2020-20578 Page 6 of 15

SM
ANALYTICAL & CONSULTING CHEMISTS
Folio . . . . . . ............... I I
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
infoCenvironmentalchemists.com
Date of Report: Dec 21, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID:
20-52414 Site: MW-4
Test
Collect Date/Time
12/3/2020 10:30 AM
Method
Matrix Sampled by
Water Eric McHorney
Results Date Analyzed
Color
Color
Mostly Clear
12/03/2020
Depth to water, ft.
Depth to water, Ft.
17.9 feet
12/03/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
12/14/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
12/03/2020
Odor
Qualitative
None
12/03/2020
Total Dissolved Solids (TDS)
SM 2540 C
60 mg/L
12/05/2020
Temperature
SM 2550 B
14.6 C
12/03/2020
Chloride
SM 4500 Cl E
< 5 mg/L
12/17/2020
pH
SM 4500 H B
5.9 units
12/03/2020
Total Phosphorus
SM 4500 P F
0.07 mg/L
12/16/2020
Total Organic Carbon (TOC)
SM 5310 B
1.2 mg/L
12/09/2020
1,1,1,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1, 1, 1 -Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2-Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromo-3-Chloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromoethane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Report # : 2020-20578 Page 7 of 15

[envirrochem]
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 + 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
info[wenvironmentalchemists.com
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC
Attention: Larry Daw, L.G.
27599-1650
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
1,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,3,5-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,4-Dichlorobenzene
SM 62008
<0.5 pg/L
12/08/2020
2,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
2-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
4-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
Benzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromodichloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromoform
SM 6200B
<0.5 pg/L
12/08/2020
Bromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Carbon tetrachloride
SM 6200B
<0.5 pg/L
12/08/2020
Chlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Chloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Chloroform
SM 6200B
<0.5 pg/L
12/08/2020
Chloromethane
SM 6200B
<0.5 pg/L
12/08/2020
cis-1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
cis-1,3-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
Dibromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Dibromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Dichlorodifluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Ethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Hexachlorobutadiene
SM 6200B
<0.5 pg/L
12/08/2020
Isopropylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
M+P Xylene
SM 6200B
<1.0 pg/L
12/08/2020
Methylene chloride
SM 6200B
<0.5 pg/L
12/08/2020
Naphthalene
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578
Page 8 of 15

SM
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 . 910.392.0223 Lab . 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 . 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
n-Butylbenzene
SM 6200B
n-Propylbenzene
SM 62008
ortho-Xylene
SM 6200B
p-Isopropyltoluene
SM 6200B
sec-B utyl benzene
SM 6200B
Styrene
SM 6200B
tert-B utyl benzene
SM 6200B
Tetrachloroethene
SM 6200B
Toluene
SM 6200B
Trans-1,2-Dichloroethene
SM 6200B
Trans- 1,3-dichloropropene
SM 6200B
Trichloroethene
SM 6200B
Trichlorofluoromethane
SM 6200B
Vinyl chloride
SM 6200B
Fecal Coliform
SM 9222D MF
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
Nitrate+Nitrite-Nitrogen
EPA 353.2
Nitrate Nitrogen
Subtraction Method
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
<0.5 pg/L
12/08/2020
22 Colon ies/100mL
12/03/2020
< 0.02 mg/L
0.33 mg/L
0.33 mg/L
12/04/2020
12/10/2020
12/18/2020
Report #.: 2020-20578 Page 9 of 15

Follow'- -- 7:"qqql
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
in fo(oenvironmentalchemists. com
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID:
20-52415 Site: MW-5
Test
Collect Date/Time
12/3/2020 12:05 PM
Method
Matrix Sampled by
Water Eric McHorney
Results Date Analyzed
Color
Color
Clear
12/03/2020
Depth to water, ft.
Depth to water, Ft.
16.1 feet
12/03/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
12/14/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
12/03/2020
Odor
Qualitative
None
12/03/2020
Total Dissolved Solids (TDS)
SM 2540 C
259 mg/L
12/05/2020
Temperature
SM 2550 B
16.4 C
12/03/2020
Chloride
SM 4500 Cl E
27 mg/L
12/17/2020
pH
SM 4500 H B
7.4 units
12/03/2020
Total Phosphorus
SM 4500 P F
< 0.04 mg/L
12/16/2020
Total Organic Carbon (TOC)
SM 5310 B
1.5 mg/L
12/09/2020
1, 1, 1,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1, 1, 1 -Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2-Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
1,2, 3-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromo-3-Chloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromoethane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578 Page 10 of 15

SM
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab ' 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
1,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1, 3, 5-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,4-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
2,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
2-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
4-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
Benzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromodichloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromoform
SM 6200B
<0.5 pg/L
12/08/2020
Bromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Carbon tetrachloride
SM 6200B
<0.5 pg/L
12/08/2020
Chlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Chloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Chloroform
SM 6200B
<0.5 pg/L
12/08/2020
Chloromethane
SM 6200B
<0.5 pg/L
12/08/2020
cis-1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
cis- 1,3-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
Dibromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Dibromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Dichlorodifluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Ethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Hexachlorobutadiene
SM 6200B
<0.5 pg/L
12/08/2020
Isopropylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
M+P Xylene
SM 6200B
<1.0 pg/L
12/08/2020
Methylene chloride
SM 6200B
<0.5 pg/L
12/08/2020
Naphthalene
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578
Page 11 of 15

envirochem
'sM
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 . 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
n-Butlbenzene
SM 6200B
<0.5 pg/L
12/08/2020
n-Propylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
ortho-Xylene
SM 6200B
<0.5 pg/L
12/08/2020
p-Isopropyltoluene
SM 6200B
<0.5 pg/L
12/08/2020
sec-Burylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Styrene
SM 6200B
<0.5 pg/L
12/08/2020
tert-Butylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Tetrachloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Toluene
SM 6200B
<0.5 pg/L
12/08/2020
Trans- 1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trans-1,3-dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
Trichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trichlorofluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Vinyl chloride
SM 6200B
<0.5 pg/L
12/08/2020
Fecal Coliform
SM 9222D MF
<1 Colonies/100ml-
12/03/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
12/04/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
< 0.02 mg/L
12/10/2020
Nitrate Nitrogen
Subtraction Method
<0.02 mg/L
12/18/2020
Report #:: 2020-20578 Page 12 of 15

envirochem
SM
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
infoCenvironmentalchemists.com
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
Lab ID Sample ID:
20-52416 Site: MW-6
Test
Collect Date/Time
12/3/2020 11:15 AM
Method
Matrix Sampled by
Water Eric McHorney
Results Date Analyzed
Color
Color
Clear
12/03/2020
Depth to water, ft.
Depth to Water, Ft.
19.7 feet
12/03/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
12/14/2020
Gallons bailed before sampling
Gallons Bailed before sampling
5.0 gallons
12/03/2020
Odor
Qualitative
None
12/03/2020
Total Dissolved Solids (TDS)
SM 2540 C
283 mg/L
12/05/2020
Temperature
SM 2550 B
16.8 C
12/03/2020
Chloride
SM 4500 Cl E
23 mg/L
12/17/2020
pH
SM 4500 H B
6.7 units
12/03/2020
Total Phosphorus
SM 4500 P F
0.17 mg/L
12/16/2020
Total Organic Carbon (TOC)
SM 5310 B
0.9 mg/L
12/09/2020
1, 1, 1,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1, 1, 1 -Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2,2-Tetrachloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1,2-Trichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
1,1-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,3-Trichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2,4-Trimethyl benzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromo-3-Chloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dibromoethane
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,2-Dichloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578 Page 13 of 15

envirochem
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 . 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Dec 19, 2020
Customer PO #:
Customer ID: 13060013
Report #: 2020-20578
Project ID: UNC-Bingham monitoring wells
1,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,3,5-Trimethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
1,3-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
1,4-Dichlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
2,2-Dichloropropane
SM 6200B
<0.5 pg/L
12/08/2020
2-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
4-Chlorotoluene
SM 6200B
<0.5 pg/L
12/08/2020
Benzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Bromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromodichloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Bromoform
SM 6200B
<0.5 pg/L
12/08/2020
Bromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Carbon tetrachloride
SM 6200B
<0.5 pg/L
12/08/2020
Chlorobenzene
SM 6200B
<0.5 pg/L
12/08/2020
Chloroethane
SM 6200B
<0.5 pg/L
12/08/2020
Chloroform
SM 6200B
<0.5 pg/L
12/08/2020
Chloromethane
SM 6200B
<0.5 pg/L
12/08/2020
cis-1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
cis- 1,3-Dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
Dibromochloromethane
SM 6200B
<0.5 pg/L
12/08/2020
Dibromomethane
SM 6200B
<0.5 pg/L
12/08/2020
Dichlorodifluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Ethylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Hexachlorobutadiene
SM 6200B
<0.5 pg/L
12/08/2020
Isopropylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
M+P Xylene
SM 6200B
<1.0 pg/L
12/08/2020
Methylene chloride
SM 6200B
<0.5 pg/L
12/08/2020
Naphthalene
SM 6200B
<0.5 pg/L
12/08/2020
Report #:: 2020-20578
Page 14 of 15

[env7iiirrochem
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab ► 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ► 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ► 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill
Date of Report: Dec 19, 2020
1120 Estes Drive Extension
Customer PO #:
Chapel Hill NC
27599-1650
Customer ID: 13060013
Attention: Larry Daw, L.G.
Report #: 2020-20578
Project ID: UNC-Bingham monitoring
wells
n-Butylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
n-Propylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
ortho-Xylene
SM 6200B
<0.5 pg/L
12/08/2020
p-Isopropyltoluene
SM 6200B
<0.5 pg/L
12/08/2020
sec -Butyl benzene
SM 6200B
<0.5 pg/L
12/08/2020
Styrene
SM 6200B
<0.5 pg/L
12/08/2020
tert-Butylbenzene
SM 6200B
<0.5 pg/L
12/08/2020
Tetrachloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Toluene
SM 6200B
<0.5 pg/L
12/08/2020
Trans- 1,2-Dichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trans-1,3-dichloropropene
SM 6200B
<0.5 pg/L
12/08/2020
Trichloroethene
SM 6200B
<0.5 pg/L
12/08/2020
Trichlorofluoromethane
SM 6200B
<0.5 pg/L
12/08/2020
Vinyl chloride
SM 6200B
<0.5 pg/L
12/08/2020
Fecal Coliform
SM 9222D MF
<1 Colonies/100mL
12/03/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen EPA 353.2 < 0.02 mg/L 12/04/2020
Nitrate+Nitrite-Nitrogen EPA353.2 0.03mg/L 12/11/2020
Nitrate Nitrogen Subtraction Method 0.03 mg/L 12/18/2020
Comment:
Reviewed by: ,
Report #:: 2020-20578 Page 15 of 15

1 J 3 1�
Date:_ t Y!
11 Certifif�t, # 9J
Facilih Name: •'L
Analyst: -V•
(N�%J.,G�
Permit %{: ' l� !:)q
pH
Reference Method SM4500 H—B -2011 Instrument ID
Calibration Time Cal Buffer 4 0 s u
Cal Buffer 10.0 s u Check Buffer 7.0 s.0 Comments
'pH check buffer must read within = 0.1 pH units of
the buffer's true value.
4 su buffer Lo&4,. Ricca 2001B20 Exp 1/2022
7 su buffer Lot#/: Ricca 2008993 Exp. 7/2022 10 su buffer LoC: Ricca 1001791 712021
Sample location I Sample Collection
Time♦
Sample Analysis pH Result ►Post -analysis Buffer
imz♦ Comments.-Data Qualifiers
Ts.0 Check values.u.
W— ( //•yr
iG. iv
- 3 /1:35 !''"•-
/J : 3? Pam- 16.33
11:0-7 p— -7. Tel
W-Ca 1(:1SA—
I 10(1A, &.08
Post analysis buffer check is required when performing analyses at multiple sampling locations and must be within = 0 1 units of the buffer's true value
All p1i values in pli units (i.e, s u ) Record all data to
the nearest 0.01 s.u. and report to the nearest 0 1 s u
Total Residual Chlorine (TRC)
Reference Method: SM 4500 CI-G2011:
flach 8167 HR: ( Please circle applicable Method Instrument ID.
Post -analysis
Daily Check Time check
Check Std.
Standard Result Standard
(when analyzing
Sample Sample
Sample TRC Result Comments Data Qualifiers
Collection Analysi;
Location
µg L or mg.'L Analyzed
at multiple'sites)
Time Time µg L or me L
TRC Daily Check Standard true value µg/L or mg/L acceptance range
lip`L or mg_rL.
Check standards must recover within ±10% of the check standard's true value
Annual Calibration Curve Verification Date:
LOT 9 Exp. Date:
Reagent Blank Value: (Chen applicable. Analyze and document a reagent blank when
standards. sample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
�fD �O
Reference Method:SM 4500 O G: 201 I
Instrument ID. �O
Calibration Calibration variable Meter reading • Post -analysis calibration
I I I
I
verification when necessary)
Verification or % efficiency
Comments
Time Barometric after calibration Theoretical Calculated
Temperature
pressure Value met Value mp-L
D��S/r� �•�—75-7.0 1 Cl.gq =too dl.
Use this row when performing a verification instead of
calibration
Sample Location Sample Collection 'Sample Analysis DO reading
P
Comments Data Qualifizrs
Time Time meL
♦ When performing analyses at multiple locations, the meter must be recalibrated at each site before analysis or a post -analysis calibration verification must be performed
' If sample is measured directly in the stream and or onsite,
only time analyzed would be recorded with incite that they are measured in situ or immediately
Temperature
Reference Method SM 2550 B-2010 Instrument ID
Sample
*Sample
Temperature
Sample Location Collection
Analysis
I
°C Comments Data Qualifiers
I
Time
Time
_AAW- l 104!�A
t :&-n4 .
4. 3
p— I
it%*.
1 y: a� p,,.
1 L . c•�
MW - Le I r 1k'"
11:1-14-- 1
16.$
If sample is measured directly in the stream and or on site, only- time analyzed would be recorded, with a note that they are measured in situ or immediatey
Annual Verification Date — 2D2fl
Field Personnel Note:
QA 001
Rev 9-2020

Environmental Chemist, Inc., Wilmington, NC Lab #94
Sample Receipt Checklist
Client:kLL Date: 3 2� ReportNumber:
6602 Windmill Way
Wilmington, NC 28405
910.392.0223
Receipt of sample: ECHEM Pickup Client Delivery ❑ JUPS ❑ FeclEx ❑ Other ❑
❑ YES
❑ NO
N/A
Ji. Were custody seals present on the cooler?
❑ YES
❑ NO
N/A
2. If custody seals were present, were they intact/unbroken?
Original temperature upon receipt Corrected temperature upon receipt C
How temperature taken: ❑ Temperature Blank Against Bottles
92
IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor °C: 0.0
YES
❑ NO
3. If temperature of cooler exceeded 6°C, was Project Mgr./QA notified?
YES
I0 NO
4. Were proper custody procedures (relinquished/received) followed?
YES
10 NO
5. Were sample ID's listed on the COC?
YES
❑ NO
6. Were samples ID's listed on sample containers?
YES
❑ NO
7. Were collection date and time listed on the COC?
YES
❑ NO
8. Were tests to be performed listed on the COC?
YES
❑ NO
9. Did samples arrive in proper containers for each test?
YES
❑ NO
10. Did samples arrive in good condition for each test?
YES
❑ NO
11. Was adequate sample volume availableT
YES
❑ NO
12. Were samples received within proper holding time for requested tests?
YES
❑ NO
13. Were acid preserved samples received at a pH of <2?
YES
❑ NO
14. Were cyanide samples received at a pH >12?
❑ YES I0
NO
15. Were sulfide samples received at a pH >9?
Is YES
❑ NO
16. Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L? **
13 YES
❑ NO
17. Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L?
❑ YES
❑ NO 118.
Were orthophosphate samples filtered in the field within 15 minutes?
* TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation: (Must be completed for any sample(s) incorrectly preserved or with headspace)
Sample(s) were received incorrectly preserved and were adjusted accordingly
by adding (circle one): H2SO4 HNO3 HCI NaOH
Time of preservation: If more than one preservative is needed, notate in comments below
Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or
notify the state lab if directed to analyzed by the customer. Who was notified, date and time:
Volatiles Sample(s)
were received with headspace
COMMENTS:
DOC. QA.002 Rev 1

Analytical & Consulting Chemists
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
r_ni 1 1=r Tlrlkl Aklr1 PWAIAI nC f`11QTf1r1V
6602 Windmill Way Wilmington, NC 28405
OFFICE: 910-392-0223 FAX [phone]
[e-mail]
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO: - ,2 0 S-7 $
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKimBCreed)
email: [e-mail]
Sampled Bv: RAMPI F TVPF• I = Inflnpn4 F = Ffflnan# W = Wall CT = Qf—.— Crl = Q-H C1 - C1..A..- r%fk ...
Sample Identification
Collection
. F
vl
a
E
o
c C7
c°
° a
" `"
v
w
O
o
O w
0° 2
g
z
PRESERVATION
J
ANALYSIS REQUESTED
Date
Time
Temp
z
0
Z
=
o
N
0
z
=
o
a
z
g
=
m
_
o
Well: M W-'
N- 3
C
P
`{/
X
TDS, Chloride, Nitrite
g-A.-
G
G
l l
Depth to water: Ll v,-
C
P
X
,b,cf G 1 C- It c o.
NO3, NH3, Total P
G
G
gallons bailed:
C
P
X
TOC
G
G
pH(field): • �-'
C
P
X
Fecal Coliform
G
G
field odor: e:n
C
P
X
VOC's (December)
G
G
color:
C
P
v
G
G
C
P
G
G
C
P
G
G
C
P
T
G
--
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
1 C1111.1Cfdlurt7 Wllt:11
Delivered By:-Z'
Comments:
Time: y=� P—

Analytical & Consulting Chemists
4:114: MM - d
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
COLLECTION AND CHAIN OF CUSTODY
6602 Windmill Way Wilmington, NC 28405
OFFICE: 910-392-0223 FAX [phone]
[e-mail]
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO: 1 o - a-6:' —7 8�
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKim&Creed)
email: [e-mail]
Sampled By: Czvt. 4Ac-t SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream. SO = Soil. SL = Sludge. Other:
Sample Identification
ollection
E a
M'~
2
CL `o
_
:° `o
0
9
=
°o
W
—W
m
g'z
PRESERVATION
V
ANALYSIS REQUESTED
Date
Time
Temp
W
$
ao
N
=
^
=
=
Z
o
w
o
Well: M l�J"3
(�' °
C
P
`���
X
TDS, Chloride, Nitrite
l 3)o
1a35e
G
G
Depth to water: Coo ��
X
NO3'NH3, Total Pc • • r
G
G
gallons bailed:
C
P
X1
TOC
G
G
pH(field): (. 3 1
C
P
X
Fecal Coliform
G
G
field odor: �M��'.-✓
C
P
X
VOC's (December)
G
G
color:
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received: Accepted: Rejected: Resample
Delivered By: Received By: ���LL- ��, Date:_
Time:
Comments: V TURNAROUND:

Analytical & Consulting Chemists
4=
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
COLLECTION AND CHAIN OF CURTonY
6602 Windmill Way Wilmington, NC 28405
OFFICE: 910-392-0223 FAX [phone]
[e-mail]
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO:
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
r-
COPY TO: Chuck Riley, PE (McKim&Creed)
email: [e-mail]
Sampled By: SAMPLE TYPE: I = Influent, E = Effluent W = Well ST = Stream SO = Soil SL = Sludge Other:
Sample Identification
Collection
a w
E C
m
c a
E°
o
�
c C7
c°
oa
2
C;g�
o
0:
W
°0 M
z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
z
o
Z
=
'o
N
o
z
=
p
a
Z
g
=
w
o
Well: •MV"Li
ly'kO
C
P
S�
X
TDS, Chloride, Nitrite
p.3 .0
18:
G
G
l�
Depth to water: oZl S
C
P
X
,,00#�, Gf t= <o .
3
N[--C3, NH3�Total P
G
G
gallons bailed: S
C
P
X
TOC
G
G
pH(field): S c 3
C
P
X
Fecal Coliform
G
G
field odor: Now%-e
C
P
I X
VOC's (December)
G
G
color: M C�t
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
i emperature wnen meceivea: Acceptea: ✓ Rejected: Resample Reu sted:
Delivered By: fi 4� �-� Received By: ` Date: 1017 .� Time: 41!c%5a--
Comments: TURNAROUND:

Analytical & Consulting Chemists
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
COLLECTION AND CHAIN OF CUSTODY
6602 Windmill Way Wilmington, NC 28405
OFFICE: 910-392-0223 FAX [phone]
[e-mail]
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO: )�o - S� g
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
L--
COPY TO: Chuck Riley, PE (McKimBCreed)
email: [e-mail]
Sampled By: rt r SAMPLE TYPE: I = Influent. E = Effluent. W = Well. ST = Stream_ SO = Soil- SL = Shirinp Othpr•
Sample Identification
ollection
E IL
U) ~
Yl
a `o 2
o
2 `o
c o
� `"
'=
O
o
W
m�
g
z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
Z
O
Z
�
=
o
N
=
o
z
x
xo
¢
z
o
=
~
w
x
o
Well:
C
P
t{tS
X
TDS, Chloride, Nitrite
G
G
l
Depth to water: a
C
P
X
pro< a- l e- 4- t e. r
NO3, NH3, Total P
G
G
gallons bailed:
C
P
X
TOC
G
G
pH(field): -3g
C
P
X
Fecal Coliform
G
G
field odor: Par,Q
C
P
X
IVOC's (December)
G
G
color: C--<<&-✓
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
Temperature when Received:
Delivered By:
Comments:
pie Re ue ted:
e: / Time: y'oo,o
TURNAROUND:

Analytical & Consulting Chemists
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
COLLECTION AND CHAIN OF CUSTODY
6602 Windmill Way Wilmington, NC 28405
OFFICE: 910-392-0223 FAX [phone]
[e-mail]
Client: UNC-Chapel Hill
PROJECT NAME: UNC-Bingham Monitoring wells
REPORT NO: - a e'S^t ?r
ADDRESS: 1120 Estes Drive Extension
CONTACT NAME:
PO NO:
Chapel Hill, NC 27599-1650
REPORT TO: Larry Daw, L.G.
PHONE/FAX:
COPY TO: Chuck Riley, PE (McKim&Creed)
email: [e-mail]
Sampled By: SAMPLE TYPE: I = Influent. E = Effluent. W = Well_ ST = Stream_ SO = Snil_ RI = Shidna Othar-
Sample Identification
Collection
ay
E
~
m a
E `o
U
c(7
c a`o
—y
C;g
o
Ow
j
z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
T---2
0
NZ
=
0
=
0
-C=
Z
o
`
W
o
Well: iAw`(p
C
P
S3a-tcto
X
TDS, Chloride, Nitrite
1t-ISA,-
G
G
Depth to water: ,23
C
P
X
PWI- ). ",, x •• r-
NO3, NH3, Total P
G
G
gallons bailed: 57'
C
P
X
TOC
G
G
pH(field): • t. $
C
P
X
Fecal Coliform
G
G
field odor: N" ''
C
P
X
VOC's (December)
G
G
color: C l
C
P
V,
G
G
C
P
G
G
C
P
G
G
C
P
G
G
Wells(total of 5) due to be sampled in March,
June, September, December (MW1,3,4,5,6)
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
I emperature when Kecelvea: Accepted: Rejected: Resample Re ue ted:
Delivered By: /i1%C•« Received Bye c-e c Date: Time:
Comments: TURNAROUND:

Exhibit 3
Bingham Facility
Flow Meter Calibration

CALIBRATION CERTIFICATION
Date of Services -September 3, 2020
Site -Bingham Laboratories
Contact
Larry Daw, L.G.
Environmental Compliance Officer/
Geophysicist/Licensed Geologist
The University of North Carolina at Chapel Hill
Department of Environment, Health and Safety
1120 Estes Drive Extension
Campus Box 1650
Chapel Hill, NC 27599-1650
919.962.6666 Office
919.883.7019 Mobile
919.962.0227 Fax
Site 1-Bingham 2 Humidifier
Meter Model DT5XB
SN 117339
Totalizer 143659
1" Copper Line
Verified flow with a Dynasonic transit time meter. During verification meter totalized 15.0 gallons and the
test meter totalized 15.2 gallons. Verification was within 2% of each other. State allowance is +/- 10%
Result -PASSED
Site 2-Bingham 3 Humidifier
Meter Model DT5XB
SN 108323
Totalizer 199703
0.75" Copper Line
Verified flow with a Dynasonic transit time meter. During verification meter totalized 17.0 gallons and the
test meter totalized 16.3 gallons. Verification was within 4% of each other. State allowance is +/- 10%
Result -PASSED
Site 3-Bingham 3 Domestic
Meter Model Neptune
3" Line
Verified flow with a Dynasonic transit time meter. During verification meter totalized 29.0 gallons and the
test meter totalized 31.0 gallons. Verification was within 6% of each other. State allowance is +/- 10%
Result -PASSED
Main Office: 1105 8th Street Court SE, Hickory, NC 28602: Phone [phone]: Fax [phone]

Site 4-Well Backwash
Meter Model Hershey
SN 0806851
Totalizer 239800
2" Line
Verified flow with a Dynasonic transit time meter. During verification meter totalized 132.0 gallons and the
test meter totalized 131.2 gallons. Verification was within 1% of each other. State allowance is +/- 10%
Result -PASSED
Site 5-Well
Meter Model Hershey
SN 562
Totalizer 069850
1.5" Line
Verified flow with a Dynasonic transit time meter. During verification meter totalized 35.0 gallons and the
test meter totalized 33.8 gallons. Verification was within 1% of each other. State allowance is +/- 10%
Result -PASSED
Site 6-Bingham 1 Supply
Meter Model Hershey
SN 0308871
1.5" Line
Verified flow with a Dynasonic transit time meter. During verification meter totalized 15.0 gallons and the
test meter totalized 15.2 gallons. Verification was within 4% of each other. State allowance is +/- 10%
Result -PASSED
Site 7-Waste Water
Meter Model ISCO 3010
SN 208DO1055
Totalizer 03179300
Large Trapezoidal Flume
Perform open channel calibration per the manufacturer's specs. Calibrated level to 0.159 feet. Indicated
instantaneous flow was within 1% of the flow table for a Large Trapezoidal Flume. State allowance is +/-
10
Result -PASSED
Site 8-Spray Field
Meter Model EMCO 4411E
Totalizer 67651
4" Line
Verified flow with a Dynasonic transit time meter. During verification meter totalized 288.0 gallons and the
test meter totalized 284.7 gallons. Verification was within 2% of each other. State allowance is +/- 10%
Result -PASSED
CERTIFIED BY:
%eftt x, 6"4
Page 2
Main Office: 1105 8ch Street Court SE, Hickory, NC 28602: Phone [phone]: Fax [phone]

Exhibit 4
Septage Removal
Documentation

jj
lk
24 f
V F671
(gem? 4 go. NXS -o1 y89
UNC Bingham Facility
1907 Orange Chapel Clover Garden Rd
Chapel Hill. NC 27516
[phone]
[e-mail]
INVOICE
INVOICE #5956428
SERVICE DATE Jul 28, 2020
DUE upon receipt
AMOUNT DUE $855.00
CONTACT US
Durham, NC 27703
[phone]
p [e-mail]
Septic Services - Pump Septic Tank $855.00
4000 gallon tank at $.18 per gallon
Plus additional 750 gallons back fill and cleaning tank.
Total $855.00
Please make checks payable to Septics-R-Us
and mail to: 480 Rock Creek Drive, Milton, NC 27305
UNC Bingham Facility
Water and Wastewater S -s
Okay for Payment rM 7_-2
'v
Septics-R-Us I NCS-01489 https://www.septicsruspros.com 1 of 4

Exhibit 5
2020 Soil Fertility
Analysis Reports

F 7
gZiroehe]m]
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Lao iu sampie iiu:
20-52417 Site: Field 1
Test
pH
Soil Fertility
Calcium
Copper
Magnesium
Manganese
Potassium
Sodium
Zinc
Acidity (Soil Fertility)
Base Saturation
Cation Exchange Capacity
Exchangeable Sodium Percentage
Humic Matter
Total Solids (%)
Total Phosphorus
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ' 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Jan 06, 2021
Customer PO #:
Customer ID: 13060013
Report #: 2020-20580
Project ID: UNC-Bingham (soil samples)
Collect Date/Time Matrix
12/3/2020 12:15 PM Solid/Sludge
Method
SW 846 Method 9045D
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
NCDA-Agronomic Division
NCDA-Agronomic Division
NCDA-Agronomic Division
NCDA-Agronomic Division
NCDA-Agronomic Division
SM 2540 B
SM 4500 P F
Results
Sampled by
Rob Clark
Date Analyzed
6.74 units 12/21/2020
1540 mg/kg
12/08/2020
11.3 mg/kg
12/08/2020
1070 mg/kg
12/08/2020
378 mg/kg
12/08/2020
527 mg/kg
12/08/2020
<59.8 mg/kg
12/14/2020
20.6 mg/kg
12/14/2020
0.4 meq/100g
12/21/2020
97.8 %
01 /06/2021
18.2 meq/100g
01/06/2021
1.40 %
01 /06/2021
0.16 %
12/22/2020
74.6 %
12/04/2020
219 mg/kg
12/16/2020
Report #:: 2020-20580 Page 1 of 4

envirochem
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill Date of Report: Jan 06, 2021
1120 Estes Drive Extension Customer PO #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #: 2020-20580
Project ID: UNC-Bingham (soil samples)
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-52418 Site: Field 2 12/3/2020 12:20 PM Solid/Sludge Rob Clark
Test Method Results Date Analyzed
pH
SW 846 Method 9045D
6.48 units
12/21/2020
Soil Fertility
Calcium
EPA 200.7
572 mg/kg
12/08/2020
Copper
EPA 200.7
4.39 mg/kg
12/08/2020
Magnesium
EPA 200.7
372 mg/kg
12/08/2020
Manganese
EPA 200.7
466 mg/kg
12/08/2020
Potassium
EPA 200.7
348mg/kg
12/08/2020
Sodium
EPA 200.7
<64.4 mg/kg
12/14/2020
Zinc
EPA 200.7
13.9 mg/kg
12/14/2020
Acidity (Soil Fertility)
NCDA-Agronomic Division
1 meq/100g
12/21/2020
Base Saturation
NCDA-Agronomic Division
82.5 %
01 /06/2021
Cation Exchange Capacity
NCDA-Agronomic Division
8.20 meq/100g
01 /06/2021
Exchangeable Sodium Percentage
NCDA-Agronomic Division
3.40 %
01 /06/2021
Humic Matter
NCDA-Agronomic Division
0.17 %
12/22/2020
Total Solids (%)
SM 2540 a
76.1 %
12/04/2020
Total Phosphorus
SM 4500 P F
314 mg/kg
12/16/2020
Report #:: 2020-20580 Page 2 of 4

Environmental Chemists, Inc.
envirochem J 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
SM
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
UNC-Chapel Hill Date of Report: Jan 06, 2021
1120 Estes Drive Extension Customer PO #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #: 2020-20580
Project ID: UNC-Bingham (soil samples)
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-52419 Site: Field 3 12/3/2020 12:25 PM Solid/Sludge Rob Clark
Test Method Results Date Analyzed
pH
SW 846 Method 9045D
7.09 units
12/21 /2020
Soil Fertility
Calcium
EPA 200.7
1080 mg/kg
12/08/2020
Copper
EPA 200.7
6.78 mg/kg
12/08/2020
Magnesium
EPA 200.7
461 mg/kg
12/08/2020
Manganese
EPA 200.7
212 mg/kg
12/08/2020
Potassium
EPA 200.7
441 mg/kg
12/08/2020
Sodium
EPA 200.7
61.1 mg/kg
12/14/2020
Zinc
EPA 200.7
41.4 mg/kg
12/14/2020
Acidity (Soil Fertility)
NCDA-Agronomic Division
0.4 meq/100g
12/21/2020
Base Saturation
NCDA-Agronomic Division
95.9 %
01/06/2021
Cation Exchange Capacity
NCDA-Agronomic Division
10.7 meq/100g
01/06/2021
Exchangeable Sodium Percentage
NCDA-Agronomic Division
2.50 %
01/06/2021
Humic Matter
NCDA-Agronomic Division
0.20 %
12/22/2020
Total Solids (%)
SM 2540 s
72.3 %
12/04/2020
Total Phosphorus
SM 4500 P F
249 mg/kg
12/16/2020
Report #.: 2020-20580 Page 3 of 4

r-7 _747 Environmental Chemists, Inc.
envirochem J 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
sM 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
UNC-Chapel Hill Date of Report: Jan 06, 2021
1120 Estes Drive Extension Customer PO #:
Chapel Hill NC 27599-1650 Customer ID: 13060013
Attention: Larry Daw, L.G. Report #: 2020-20580
Project ID: UNC-Bingham (soil samples)
Lab ID Sample ID: Collect Date/Time Matrix Sampled by
20-52420 Site: Field 4 12/3/2020 12:30 PM Solid/Sludge Rob Clark
Test Method Results Date Analyzed
pH SW 846 Method 9045D 6.02 units 12/21 /2020
Soil Fertility
Calcium
EPA 200.7
587 mg/kg
12/08/2020
Copper
EPA 200.7
3.67 mg/kg
12/08/2020
Magnesium
EPA 200.7
388mg/kg
12/08/2020
Manganese
EPA 200.7
307 mg/kg
12/08/2020
Potassium
EPA 200.7
346 mg/kg
12/08/2020
Sodium
EPA 200.7
<64.8 mg/kg
12/14/2020
Zinc
EPA 200.7
10.4 mg/kg
12/14/2020
Acidity (Soil Fertility)
NCDA-Agronomic Division
2 meq/100g
12/21/2020
Base Saturation
NCDA-Agronomic Division
79.2 %
01/06/2021
Cation Exchange Capacity
NCDA-Agronomic Division
8.80 meq/100g
01/06/2021
Exchangeable Sodium Percentage
NCDA-Agronomic Division
3.20 %
01/06/2021
Humic Matter
NCDA-Agronomic Division
0.25 %
12/22/2020
Total Solids (%)
SM 2540 B
70.0 %
12/04/2020
Total Phosphorus
SM 4500 P F
226 mg/kg
12/16/2020
Comment: Results, except pH, reported on a dry weight basis. pH reported on an as received basis
Reviewed by: %A�M -6n- A-J aAA-��
Report #:: 2020-20580
Page 4 of 4

Environmental Chemist, Inc., Wilmington, NC Lab #94
Sample Receipt Checklist
6602 Windmill Way
Wilmington, NC 28405
910.392.0223
Client: MV. 410,10e�V
"t , Date: ZJ 4.2-UReport Number:
20-2���0
Receipt of sample:
,E�HEM PickupA Client Delivery ❑
JUPS ❑
FeclEx ❑
Other ❑
❑ YES
Cl NO
N/A
1. Were custody seals present on the cooler?
❑ YES
❑ NO
A N/A
12. If custody seals were present, were they intact/unbroken?
Original temperature upon receipt °C Corrected temperature upon receipt 'C
How temperature taken: ❑ Temperature Blank Against Bottles
IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor °C: 0.0
YES
10 NO
3. If temperature of cooler exceeded 6°C, was Project Mgr./QA notified?
YES
❑ NO
4. Were proper custody procedures (relinquished/received) followed?
YES
❑ NO
5. Were sample ID's listed on the COC?
YES ID
NO
6. Were samples ID's listed on sample containers?
YES
I ❑ NO
7. Were collection date and time listed on the COC?
YES
10 NO
8. Were tests to be performed listed on the COC?
YES
113 NO
9. Did samples arrive in proper containers for each test?
YES
❑ NO
10. Did samples arrive in good condition for each test?
YES
❑ NO
11. Was adequate sample volume available?'
YES
❑ NO
12. Were samples received within proper holding time for requested tests?
❑ YES 10
NO
13. Were acid preserved samples received at a pH of <2?
❑ YES 10
NO
14. Were cyanide samples received at a pH >12?
❑ YES
❑ NO 115.
Were sulfide samples received at a pH >9?
❑ YES I0
NO 116.
Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L? **
❑ YES
❑ NO
17. Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L?
❑ YES 10
NO 118.
Were orthophosphate samples filtered in the field within 15 minutes?
* TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation: (Must be completed for any sample(s) incorrectly preserved or with headspace)
Sample(s) were received incorrectly preserved and were adjusted accordingly
by adding (circle one): H2SO4 HNO3 HCl NaOH
Time of preservation: If more than one preservative is needed, notate in comments below
Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or
llnotify the state lab if directed to analyzed by the customer. Who was notified, date and time:
Volatiles Sample(s)
were received with headspace
COMMENTS:
DOC. QA.002 Rev 1

An.aiybcal d Cmsulbnq Charrsts
Client: \j
ADDRESS:
Sampled By:
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWp CERTIFICATION • 94 NCDHHS_ DLS CERTIFICATION R 3TT29
COLLECTION AND CHAIN OF CUSTODY
6602 Windmill Way Wilmington, NC 28405
OFFICE. 910-392-0223 FAX 910-39i4424
Inf o(environmentalchemists.com
PROJECT NAME: s\q\4v\ 0, 5 REPORT NO:
CONTACT NAME: PO NO:
REPORT TO: PHONEIFAX:
COPY TO: email:
SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
Collection a PR —
Sample Identification
Date Time
Transfer
1.
2.
Temperature when
Delivered �P5
Comments:
0
6 o o W ESERVATION
A� E o v c d r E �� i � a i 0 4 W ANALYSIS REQUESTED
Temp coi u" t' i i z z o
moll
moll
moll
Accepted:
Date/Time I Received
I Daterl ime I
Resample Requested:
Date: Time:
'a
TURNAROUND:

Exhibit 6
2020 Priority Pollutant
Analysis of
Treated Wastewater

Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
sM 255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
UNC-Chapel Hill
Date of Report: Jan 14, 2021
1120 Estes Drive Extension
Customer PO #:
Chapel Hill NC
27599-1650
Customer ID: 13060013
Attention: Larry Daw, L.G.
Report #: 2020-20586
Project ID: UNC-Bingham Pollutant Scan
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
20-52432 Site: Effluent
12/3/2020 10:50 AM Water Eric McHorney
Test
Method
Results
Date Analyzed
Oil & Grease (O&G)
EPA 1664
<5.0 mg/L
12/09/2020
Antimony
EPA 200.7
<0.010 mg/L
12/08/2020
Arsenic
EPA 200.7
<0.010 mg/L
12/08/2020
Beryllium
EPA 200.7
<0.010 mg/L
12/08/2020
Cadmium
EPA 200.7
<0.010 mg/L
12/08/2020
Chromium
EPA 200.7
<0.010 mg/L
12/08/2020
Copper
EPA 200.7
<0.010 mg/L
12/08/2020
Lead
EPA 200.7
<0.010 mg/L
12/08/2020
Nickel
EPA 200.7
<0.010 mg/L
12/08/2020
Selenium
EPA 200.7
<0.01 mg/L
12/10/2020
Silver
EPA 200.7
<0.010 mg/L
12/08/2020
Thallium
EPA 200.7
<0.010 mg/L
12/08/2020
Zinc
EPA 200.7
<0.010 mg/L
12/08/2020
Mercury
EPA 245.1
<0.0002 mg/L
12/10/2020
Cyanide
EPA 335.4
< 0.005 mg/L
12/07/2020
Ammonia Nitrogen
EPA 350.1
< 0.2 mg/L
12/14/2020
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
< 0.5 mg/L
12/16/2020
Inorganic Phenols
EPA420.4
<0.005mg/L
12/07/2020
1, 1, 1 -Trichloroethane
EPA 624
<0.5 pg/L
12/09/2020
1,1,2,2-Tetrachloroethane
EPA 624
<0.5 pg/L
12/09/2020
1,1,2-Trichloroethane
EPA 624
<0.5 pg/L
12/09/2020
1,1-Dichloroethane
EPA 624
<0.5 pg/L
12/09/2020
1,1-Dichloroethene
EPA 624
<0.5 pg/L
12/09/2020
1,2-Dichlorobenzene
EPA 624
<0.5 pg/L
12/09/2020
1,2-Dichloroethane
EPA 624
<0.5 pg/L
12/09/2020
1,2-Dichloropropane
EPA 624
<0.5 pg/L
12/09/2020
Report #:: 2020-20586
Page 1 of 5

Cnvirochem:]
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
[e-mail]
UNC-Chapel Hill
Date of Report: Jan 14, 2021
1120 Estes Drive Extension
Customer PO #:
Chapel Hill NC
27599-1650
Customer ID: 13060013
Attention: Larry Daw, L.G.
Report #: 2020-20586
Project ID: UNC-Bingham Pollutant Scan
1,3-Dichlorobenzene
EPA 624
<0.5 pg/L
12/09/2020
1,4-Dichlorobenzene
EPA 624
<0.5 pg/L
12/09/2020
Acrolein
EPA 624
<5 pg/L
12/09/2020
Acrylonitrile
EPA 624
<5 pg/L
12/09/2020
Benzene
EPA 624
<0.5 pg/L
12/09/2020
Bromodichloromethane
EPA 624
<0.5 pg/L
12/09/2020
Bromoform
EPA 624
<0.5 pg/L
12/09/2020
Bromomethane
EPA 624
<0.5 pg/L
12/09/2020
Carbon Tetrachloride
EPA 624
<0.5pg/L
12/09/2020
Chlorobenzene
EPA 624
<0.5 pg/L
12/09/2020
Chloroethane
EPA 624
<0.5 pg/L
12/09/2020
Chloroform
EPA 624
<0.5 pg/L
12/09/2020
Chloromethane
EPA 624
<0.5 pg/L
12/09/2020
cis-1,3-Dichloropropene
EPA 624
<0.5 pg/L
12/09/2020
Dibromochloromethane
EPA 624
<0.5 pg/L
12/09/2020
Ethylbenzene
EPA 624
<0.5 pg/L
12/09/2020
M+P Xylene
EPA 624
<1.0 pg/L
12/09/2020
Methylene chloride
EPA 624
<0.5 pg/L
12/09/2020
ortho-Xylene
EPA 624
<0.5 pg/L
12/09/2020
Tetrachloroethene
EPA 624
<0.5 pg/L
12/09/2020
Toluene
EPA 624
<0.5 pg/L
12/09/2020
Trans- 1,2-Dichloroethene
EPA 624
<0.5 pg/L
12/09/2020
trans-1,3-Dichloropropene
EPA 624
<0.5pg/L
12/09/2020
Trichloroethene
EPA 624
<0.5 pg/L
12/09/2020
Trichlorofluoromethane
EPA 624
<0.5 pg/L
12/09/2020
Vinyl chloride
EPA 624
<0.5 pg/L
12/09/2020
2,4,6-Trichlorophenol
EPA 625
<5 pg/L
12/08/2020
2,4-Dichlorophenol
EPA 625
<5 pg/L
12/08/2020
2,4-Dimethyl phenol
EPA 625
<5 pg/L
12/08/2020
2,4-Dinitrophenol
EPA 625
<25 pg/L
12/08/2020
Report #:: 2020-20586
Page 2 of 5

envirochem
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Jan 14, 2021
Customer PO #:
Customer ID: 13060013
Report #: 2020-20586
Project ID: UNC-Bingham Pollutant Scan
2-Chlorophenol
EPA 625
<5 pg/L
12/08/2020
2-Methyl-4,6-dinitrophenol
EPA 625
<25 pg/L
12/08/2020
2-Nitrophenol
EPA 625
<25 pg/L
12/08/2020
4-Chloro-3-methylphenol
EPA 625
<5 pg/L
12/08/2020
4-Nitrophenol
EPA 625
<25 pg/L
12/08/2020
Pentachlorophenol
EPA 625
<25 pg/L
12/08/2020
Phenol
EPA 625
<5 pg/L
12/08/2020
1,2 Diphenylhydrazine
EPA 625
<5pg/L
12/08/2020
1,2,4-Trichlorobenzene
EPA 625
<5 pg/L
12/08/2020
1,2-Dichlorobenzene
EPA 625
<5 pg/L
12/08/2020
1,3-Dichlorobenzene
EPA 625
<5 pg/L
12/08/2020
1,4-Dichlorobenzene
EPA 625
<5 pg/L
12/08/2020
1-Methyl naphthalene
EPA 625
<5 pg/L
12/08/2020
2,4-Dinitrotoluene
EPA 625
<5 pg/L
12/08/2020
2,6-Dinitrotoluene
EPA 625
<5 pg/L
12/08/2020
2-Chloronaphthalene
EPA 625
<5 pg/L
12/08/2020
2-Methyl naphthalene
EPA 625
<5 pg/L
12/08/2020
3,3'-Dichlorobenzidine
EPA 625
<10 pg/L
12/08/2020
4-Bromophenyl phenyl ether
EPA 625
<5 pg/L
12/08/2020
4-Chlorophenyl phenyl ether
EPA 625
<5 pg/L
12/08/2020
Acenaphthene
EPA 625
<5 pg/L
12/08/2020
Acenaphthylene
EPA 625
<5 pg/L
12/08/2020
Anthracene
EPA 625
<5 pg/L
12/08/2020
Benzidine
EPA 625
<10 pg/L
12/08/2020
Benzo [a]pyrene
EPA 625
<5 pg/L
12/08/2020
Benzo(a)anthracene
EPA 625
<5 pg/L
12/08/2020
Benzo(b)fluoranthene
EPA 625
<5 pg/L
12/08/2020
Benzo(g,h,i)perylene
EPA 625
<5 pg/L
12/08/2020
Benzo(k)f uoranthene
EPA 625
<5 pg/L
12/08/2020
Bis ( chloromethyl ) ether
EPA 625
<5 pg/L
12/08/2020
Report #:: 2020-20586
Page 3 of 5

Environmental Chemists, Inc.
enviroehem
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
6602 Windmill Way, Wilmington, NC 28405 + 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ■ 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Jan 14, 2021
Customer PO #:
Customer ID: 13060013
Report #: 2020-20586
Project ID: UNC-Bingham Pollutant Scan
Bis(2-Chloroethoxy)methane
EPA 625
<5 pg/L
12/08/2020
Bis(2-Chloroethyl)ether
EPA 625
<5 pg/L
12/08/2020
Bis(2-Chloroisopropyl)ether
EPA 625
<5pg/L
12/08/2020
Bis(2-ethylhexyl)phthalate
EPA 625
<5 pg/L
12/08/2020
Butylbenzylphthalate
EPA 625
<5 pg/L
12/08/2020
Chrysene
EPA 625
<5 pg/L
12/08/2020
Dibenzo(a,h)anthracene
EPA 625
<5 pg/L
12/08/2020
Diethylphthalate
EPA 625
<5 pg/L
12/08/2020
Dimethylphthalate
EPA 625
5.87 pg/L
12/08/2020
Di-n-Butylphthalate
EPA 625
<5 pg/L
12/08/2020
Di-n-Octylphthalate
EPA 625
<5 pg/L
12/08/2020
Fluoranthene
EPA 625
<5 pg/L
12/08/2020
Fluorene
EPA 625
<5 pg/L
12/08/2020
Hexachlorobenzene
EPA 625
<5 pg/L
12/08/2020
Hexachlorobutadiene
EPA 625
<5 pg/L
12/08/2020
Hexachlorocyclopentadiene
EPA 625
<25pg/L
12/08/2020
Hexachloroethane
EPA 625
<5 pg/L
12/08/2020
Indeno(1,2,3-cd)pyrene
EPA 625
<5 pg/L
12/08/2020
Isophorone
EPA 625
<5 pg/L
12/08/2020
Naphthalene
EPA 625
<5 pg/L
12/08/2020
Nitrobenzene
EPA 625
<5 pg/L
12/08/2020
N-nitroso-dimethylamine(NDMA)
EPA 625
<5pg/L
12/08/2020
N-Nitroso-di-n-propylamine
EPA 625
<5 pg/L
12/08/2020
N-Nitroso-diphenylamine
EPA 625
<5 pg/L
12/08/2020
Phenanthrene
EPA 625
<5 pg/L
12/08/2020
Pyrene
EPA 625
<5 pg/L
12/08/2020
Chlorine
Hach 8167
0.030 mg/L
12/03/2020
Total Hardness
SM 2340 C
60 mg/L
12/14/2020
Total Dissolved Solids (TDS)
SM 2540 c
279 mg/L
12/05/2020
Temperature
SM 2550 B
8.9 C
12/03/2020
Report #:: 2020-20586
Page 4 of 5

envirochem
ANALYTICAL & CONSULTING CHEMISTS
UNC-Chapel Hill
1120 Estes Drive Extension
Chapel Hill NC 27599-1650
Attention: Larry Daw, L.G.
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Jan 14, 2021
Customer PO #:
Customer ID: 13060013
Report #: 2020-20586
Project ID: UNC-Bingham Pollutant Scan
pH
SM 4500 H B
8.2 units
12/03/2020
Dissolved Oxygen
SM 4500 o G
8.75 mg/L
12/03/2020
Total Phosphorus
SM 4500 P F
1.10 mg/L
12/16/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
EPA 353.2
< 0.02 mg/L
12/04/2020
Nitrate+Nitrite-Nitrogen
EPA 353.2
12.0 mg/L
12/11/2020
Nitrate Nitrogen
Subtraction Method
12.0 mg/L
12/18/2020
Comment:
Reviewed by:
Report #:: 2020-20586 Page 5 of 5

Date: 10/ 3 ( I.
Analyst: -C-
Cgrti c C)an # 94
Facility Name: uMe ' L♦2 / �r — IgiO
Permit
Reference Method SM4500 H—B -2011
Instrument ID
Calibration Time
Cal Buffer 4 0 s u
Cal Buffer 10.0 s u Check Buffer 7.0 s u
Comments
'pH check buffer must read within ± 0 1 pH units ofthe buffer's true value
4 su buffer Lots': Ricca 2001B20 Exp 1/2022
7 su buffer Loe,/: Ricca 2008993 Exo. 7/2022 10 su buffer Lot± Ricca 1001791 7'2021
Sample location
Sample Collection
Time♦
Sample Analysis pH Result ►Post -analysis Buffer
Comments Data Qualifiers
Time♦ su Check value s.0
EC�
ha's3-4— - .i r
► Post analysis buffer check is required %then performing analyses at multiple sampling locations and must be %%ithin - 0 1 units of the buffer's true value
All pH values in pH units (Le., s.0 ) Record all data to the nearest 0.01 s u and report to the nearest 0 1 s u
tal Residual Chlorine (TRC)
Reference Metho : S��14500 �CIG2���llach 8167 HR ( Please circle a licable Method Instrument ID
Post -aka sil
Daily Check im chec Sample Sample
Check Std Sample TRC Result Comments Data Qualifiers
StandardRzsult Standard Collection Analysis µgLor�
(when analyzing Location
µgL mg'L at multiple sites) Analyzed Time Time
m. c 1 1 is N C*A- I EA
W SV A-• I I4 : SlA-- I b. O I L
TRC Daih Check Standard true value r2 µg/t: o m
cceptance range Q�_µg L o mgil
Check standards must recover within ±10°Xb of the check st
s true value
Annual Calibration Curve Verification Date:
LOTk 2001 IZ I Exp. Date: 2
Reagent Blank Value: (When applicable. Analyze and document a reagent blank %%hen standards. sample dilutions or PT Samples are prepared)
Dissolved Oxygen (DO)
Reference Method-SM 4500 O G.-2011 Instrument ID.
Calibration Calibration variable Meter reading
• Post -analysis calibration
Verification or °o efficiency
%erification (when necessary)
Comments
Time Barometric after calibration
Temperature
Theoretical Calculated
pressure
Value met. Value meL
II I I I Use this rosy is -hen performing a %erification instead of
Sample Location Sample Collection 'Sample Analysis DO reading Commznts.Data Qualifiers
Time Time m°L
• When performing analyses at multiple locations, the meter must be recalibrated at each site before analysis or a post -analysis calibration verification must be performed
' Irsample is measured directly in the stream and or onsite, only time anal) zed %%ould be recorded with a note that they are measured in situ or immediatel)
Temperature
Reference Method. SM 2550 B-2010 Instrument ID
I Sample I -Sample I Temperature I
Sample Location Collection Analysis °C Comments Data Qualifiers
Time Timz
' If sample is measured direcy�% ittjhe str�and'or on site, only time analyzed would be recorded, with a note that they are measured in situ or immediately
Annual Verification Date 1 Lp
Field Personnel Note:
QA.001
Rev 9-2020

Environmental Chemist, Inc., Wilmington, NC Lab #94
Sample Receipt Checklist
6602 Windmill Way
Wilmington, NC 28405
910.392.0223
Client: UMC—���� L �- Date: 4 2 2O ReportNumber: 2 D — Z"b59'6
.A
Receipt of sample:
ECHEM Picku Client Delivery ❑
UPS ❑ FedEx ❑ Other ❑
❑ YES
I0
NO
N/A
11. Were custody seals present on the cooler?
❑ YES
❑
NO
N/A
2. If custody seals were present, were they intact/unbroken?
Original temperature upon receipt
°C Corrected temperature upon receipt °C
How temperature taken:
❑ Temperature Blank Against Bottles
IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor °C: 0.0
YES
❑
NO
3.
If temperature of cooler exceeded 6°C, was Project Mgr./QA notified?
YES
❑
NO
4.
Were proper custody procedures (relinquished/received) followed?
YES
❑
NO
5.
Were sample ID's listed on the COC?
YES
❑
NO
6.
Were samples ID's listed on sample containers?
YES
❑
NO
7.
Were collection date and time listed on the COC?
YES
❑
NO
8.
Were tests to be performed listed on the COC?
YES
❑
NO
9.
Did samples arrive in proper containers for each test?
YES
❑
NO
10.
Did samples arrive in good condition for each test?
YES
❑
NO
11. Was adequate sample volume available?'
YES
❑
NO
12.
Were samples received within proper holding time for requested tests?
YES
❑
NO
13. Were acid preserved samples received at a pH of <27
O YES I0
NO
14.
Were cyanide samples received at a pH >12?
❑ YES
❑
NO
15.
Were sulfide samples received at a pH >9?
YES
❑
NO
16.
Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L? **
❑ YES
❑
NO
17.
Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L?
❑ YES I0
NO 118.
Were orthophosphate samples filtered in the field within 15 minutes?
* TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation: (Must be completed for any sample(s) incorrectly preserved or with headspace)
Sample(s) were received incorrectly preserved and were adjusted accordingly
by adding (circle one): H2SO4 HNO3 HCI NaOH
Time of preservation: If more than one preservative is needed, notate in comments below
Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or
notify the state lab if directed to analyzed by the customer. Who was notified, date and time:
JVolatiles Sample(s) were received with headspace
COMMENTS:
DOC. QA.002 Rev 1

Analytical & Consulting Chemists
ENVIRONMENTAL CHEMISTS, INC
NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729
COLLECTION AND CHAIN OF CUSTODY
6602 Windmill Way Wilmington, NC 28405
OFFICE: 910-392-0223 FAX [phone]
[e-mail]
Client: UNC-Chapel Hill
PROJECT NAME: Effluent Pollutant Scan/Bingham
REPORT NO:
ADDRESS:
CONTACT NAME:
PO NO:
REPORT TO: Larry Daw, UNC
PHONE/FAX:
COPY TO:
email:
Sampled By: t r SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other:
Sample Identification
Collection
E C
w
E `o
o
c°
o a
—
—° °'
t E
"
°0 m
g>
Z
PRESERVATION
ANALYSIS REQUESTED
Date
Time
Temp
z
o
Z
J
c�
x
eQ
rn
="
o
Z
x
o
i
O
=
W
x
o
Effluent
C
P
,
2
NH3,NO3,NO2,TKN,Total P, TDS, Hardness
I? 3 ?-+
)�d=S-A—
G
G
DO (field):'T• -7S
C
P
G5'
/`t-R
X
—7\
Oil and Grease, metals, CN, Phenol
G
G
pH(field): '6 • / S
C
P
624/625
G
G
Chlorine: v • 0Nq 'L
C
P
G
G
C
P
/
%\
n
!i
Sb,As,Be,Cd,Cr,Cu,Pb,Hg,Ni,Se,Ag,TI,Zn
G
G
C
P
G
G
C
P
G
G
C
P
G
G
C
P
G
G
Meter reading (start): Meter reading (end):
Transfer
Relinquished By:
Date/Time
Received By:
Date/Time
1.
2.
I emperatur
Delivered 8
Comments:
ile Requested.
3 Time:
TURNAROUND: