20130702 Ver 1_TOC Final Report 8-20-15_20151013

Maynard Road Nitrogen
Removal Water Quality Study
- Final Report
Prepared for:
North Carolina Ecosystem
Enhancement Program
(3 Stantec
Prepared by:
Stantec Consulting Services, Inc.
August 20, 2015

Sign -off Sheet
This document entitled Maynard Road Nitrogen Removal Water Quality Study - Final Report was
prepared by Stantec Consulting Services Inc. ( "Stantec ") for the account of the Town of Cary (the
"Client "). Any reliance on this document by any third party is strictly prohibited. The material in it
reflects Stantec's professional judgment in light of the scope, schedule and other limitations stated
in the document and in the contract between Stantec and the Client. The opinions in the
document are based on conditions and information existing at the time the document was
published and do not take into account any subsequent changes. In preparing the document,
Stantec did not verify information supplied to it by others. Any use which a third party makes of this
document is the responsibility of such third party. Such third party agrees that Stantec shall not be
responsible for costs or damages of any kind, if any, suffered by it or any other third party as a result
of decisions made or actions taken based on this document.
Prepared by
(signature)
Kristin Weidner, PWS
Reviewed by ALL
(signature)
Ken Carper, PE, CFM

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Table of Contents
1.0 BACKGROUND ................................................................................ ..............................1
2.0 WATER QUALITY SAMPLING PLAN ................................................. ............................... 2
3.0 WATER QUALITY RESULTS ................................................................ ............................... 6
4.0 STATISTICAL ANALYSIS ................................................................... ............................... 9
5.0 DISCUSSION ................................................................................. ............................... 11
6.0 REFERENCES .................................................................................... .............................12
LIST OF TABLES
Table 1 Number of samples collected pre- and post- construction ....... ............................... 2
Table 2 Pre - construction water quality results ........................................... ............................... 7
Table 3 Post - construction water quality results .......................................... ............................... 8
LIST OF FIGURES
Figure1 Monitoring sites ................................................................................ ............................... 5
Figure 2 Regression analysis results (baseflow and stormflow events) . ............................... 10
Figure 3 Regression analysis results (stormflow events only) .................. ............................... 10
LIST OF APPENDICES
APPENDIX A POST - CONSTRUCTION LABORATORY REPORTS ........... ............................A.1
Stantec

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
The Town of Cary (Town) and the North Carolina Ecosystem Enhancement Program (NCEEP)
signed a Memorandum of Agreement on January 26, 2005 to design, install, and monitor a
nitrogen (N) reduction best management practice (BMP) system as part of a stream restoration
project to remove 1,215 pounds of N per year from within the Neuse River Basin.
The project is focused on a 624 -acre sub -basin draining approximately two - thirds of Cary's town
center located in the western portion of the 8,000 -acre Swift Creek Basin. Swift Creek and its
unnamed tributaries in the watershed are designated as 303(d) listed streams and contain
federally protected aquatic species downstream of the Town Center Area Plan (TCAP)
revitalization area. The purpose of the installed BMP system is to improve water quality in the Swift
Creek subbasin by reducing N exports. In a feasibility study conducted by Stantec (2005), it was
estimated that the current load in the watershed is 6,424 pounds of N per year. A removal of
1,215 pounds would equate to a 19% reduction in N loads per year.
The nutrient offset project was designed and constructed in conjunction with a multi -phase
stream restoration project completed in the fall of 2012. Pre - construction water quality and flow
monitoring was conducted between 2005 and 2007, prior to project construction. Two years of
post- construction water quality and flow monitoring was performed from July 2013 to June of
2015.
4 Stantec

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Two water quality monitoring sites were established pre- construction at the upstream and
downstream ends of UT to Swift Creek within the project area. For consistency in water quality
data, the same sites (as close as could be established post- construction) were established for
post- construction monitoring. The first site (Site #10) was established upstream of the original
restoration project area. Subsequent restoration phases resulted in Site # 10 being located within
the stream restoration project area. The downstream site (Site # 1) was established downstream
of Maynard Road. Photos of the sites are below and locations are depicted in Figure 1. Note
that sites #249 were abandoned early during pre- construction monitoring and are not included
as part of this water quality study.
The study entailed the collection of grab samples primarily during stormflow events to determine
the effects of the BMPs on attenuating nitrogen from storm events.
A total of 15 sampling events were conducted at the upstream (Site #10) and downstream (Site
# 1) monitoring sites pre- construction. An additional four samples were collected downstream
without a corresponding upstream sampling event, pre- construction. Post - construction, a total
of 11 sampling events were conducted both upstream and downstream.
Table 1 Number of samples collected pre- and post- construction
No. of Samples
Site Pre- Post -
Construction Construction
Site #10 15 11
(Upstream)
Site #1 19 11
(Downstream)
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2

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
'hoto 1. Water quality Site #10 (Upstream, pre- construction)
Photo 2. Water quality Site #10 (Upstream, post- construction)
Stantec
3

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Photo 3. Water quality Site # 1 (Downstream, pre- construction)
0.
Photo 4. Water quality Site # 1 (Downstream, post- construction)
Stantec
4

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Water Quality Sampling Sites
Maynard Road Nitrogen Removal
VVater Quality Study
Cary, North Carolina
Stantec
(3 Stantec
Water quality monitoring sites
Project area
As -built stream centerline
Restoration reaches
Hydrography
5

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Samples were analyzed by ENCO Environmental Laboratories, which holds North Carolina
environmental certification under NELAP accreditation guidelines. Samples were analyzed for
Total Kjeldahl nitrogen (TKN), nitrate (NO2), nitrite (NO3), and nitrate /nitrite (NO2 /NO3). Full copies
of laboratory reports are presented in Appendix A.
Pre - construction and post- construction water quality data are presented in Table 1 and Table 2,
respectively. Total nitrogen (TN) was calculated by summing TKN and NO2 /NO, or NO2 and NO3
as applicable. Where parameter results were reported to be less than the method detection
limits (MDL), an assumed value of half the MDL was used for the purposes of calculating TN.
Stantec
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MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Table 2 Pre - construction water quality results
4/29/2005
Stormflow
Site #1 (Downstream)
Site #10 (Upstream)
0.6
0.77
TN
5/13/2005
Stormflow
<0.10
TN
0.78
Nitrite
Nitrate
Nitrate /Nitrite
TKN
(mg/L.)
Nitrite
Nitrate
Nitrate /Nitrite
TKN
(mg/L.)
Date
Type
(mg/L.)
(mg /L)
(mg /L)
(mg/L.)
caic'd
(mg/L.)
(mg/L.)
(mg/L.)
(mg/L.)
calc'd
4/29/2005
Stormflow
<0.10
0.12
0.6
0.77
5/13/2005
Stormflow
<0.10
0.4
0.78
1.23
<0.10
0.35
0.7
1.10
6/2/2005
Stormflow
<0.10
0.3
0.53
0.88
<0.10
0.26
0.68
0.99
6/30/2005
Baseflow
<0.10
0.16
0.38
0.59
<0.10
0.17
0.23
0.45
8/23/2005
Intermediate
<0.10
0.43
0.84
1.32
9/27/2005
Baseflow
<0.10
<0.10
0.18
0.28
10/7/2005
Stormflow
<0.10
0.2
0.54
0.79
11/28/2005
Intermediate
<0.10
0.28
<0.05
0.36
<0.10
0.35
0.52
0.92
12/9/2005
Stormflow
<0.10
0.31
0.46
0.82
<0.10
0.33
0.55
0.93
1/12/2006
Baseflow
<0.1
0.31
<0.30
0.51
<0.10
0.10
0.30
0.45
1/31/2006
Stormflow
<0.10
0.40
0.30
0.75
<0.10
0.44
0.30
0.79
2/22/2006
Stormflow
<0.10
0.23
2.20
2.48
<0.10
0.56
1.70
2.31
3/14/2006
Stormflow
<0.10
0.76
2.20
3.01
<0.10
0.13
<0.30
0.33
4/17/2006
Stormflow
<0.10
0.6
0.60
2.89
3.49
<0.10
<0.6
<0.5
2.38
2.63
5/11/2006
Stormflow
0.20
<0.1
0.20
0.99
1.19
<.1
0.31
0.30
1.30
1.60
9/13/2006
Stormflow
<0.05
0.27
0.81
1.11
<0.05
0.28
0.89
1.20
10/6/2006
Stormflow
0.73
0.71
1.24
2.68
<.1
0.63
0.65
1.05
1.70
11/7/2006
Stormflow
<0.1
0.32
0.32
1.25
1.57
<.1
0.40
0.40
1.28
1.68
3/16/2007
Stormflow
<0.1
0.65
0.678
1.5
2.18
<0.1
0.75
0.772
1.5
2.27
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MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Table 3 Post - construction water quality results
7/29/2013
Intermediate
Site #1 (Downstream)
Site #10 (Upstream)
<0.041
0.5
0.52
Nitrite-
Nitrate-
0.18
0.64
TN
Nitrite-
Nitrate-
<0.017
<0.025
TN
0.65
0.67
N
N
Nitrate /Nitrite -
TKN
(mg/L.)
N
N
Nitrate /Nitrite -
TKN
(mg/L.)
Date
Type
(mg/L.)
(mg/L.)
N (mg/L.)
(mg/L.)
caic'd
(mg/L.)
(mg /L)
N (mg /L)
(mg /L)
calc'd
7/29/2013
Intermediate
<0.017
<0.025
<0.041
0.5
0.52
0.023
0.16
0.18
0.64
0.82
10/8/2013
Baseflow
<0.017
<0.025
<0.041
0.65
0.67
<0.017
<0.025
<0.041
0.62
0.64
12/10/2013
Stormflow
<0.017
0.18
0.18
0.55
0.73
<0.017
0.20
0.22
0.63
0.85
1/6/2014
Stormflow
<0.017
0.21
0.21
0.46
0.67
<0.017
0.11
0.11
0.58
0.69
2/10/2014
Intermediate
<0.017
0.054
0.054
<0.26
0.18
<0.017
0.041
0.041
0.75
0.79
5/8/2014
Baseflow
<0.017
0.15
0.15
0.94
1.09
<0.017
0.11
0.11
0.62
0.73
7/16/2014
Stormflow
0.019
<0.025
<0.041
0.68
0.70
<0.017
0.13
0.13
1.0
1.13
11/26/2014
Stormflow
0.017
0.23
0.25
1.1
1.35
<0.017
0.25
0.25
0.64
0.89
12/16/2014
Stormflow
0.017
0.21
0.23
1.1
1.33
<0.017
0.23
0.23
1.0
1.23
3/20/2015
Stormflow
<0.017
0.27
0.27
0.81
1.08
<0.017
0.36
0.36
0.90
1.26
6/2/2015
Stormflow
<0.017
0.15
0.15
0.88
1.03
0.019
0.24
0.26
1.2
1.46
Stantec
8

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
For the purposes of this study, a regression analysis was performed to determine the 'treatment
effect' of the BMPs as part of the stream restoration project within the study area. Specifically, a
multiple linear regression which investigated interactions between variables was performed. In
effect, the change in average concentration in the upstream location before and after
construction was treated as the control (i.e., the variables were set to 0). The downstream
location and post- construction scenario was the treatment (i.e., the variables were set to 1). A
dummy variable was created multiplying location by scenario, such that only downstream, post -
construction scenario samples were assigned a value of one. Note that the treatment effect of
the BMPs versus the stream restoration project cannot be separated. The regression equation
was set up as follows:
y= c +/31 *d +#2 *f +fl3 *9
Where y = sample concentration (mg /L)
c = intercept
d = location (upstream = 0, downstream = 1)
f = construction scenario (pre- construction = 0, post- construction = 1)
g = d *f (only downstream and post- construction maintains a value of 1)
In this equation, the coefficient of g ((33) represents the treatment effect of the BMPs within the
study area. The regression analysis was performed using the Analysis Tool Pak in the Microsoft
Excel 2010 software. To perform the analysis, sampling events which included an upstream and
downstream sample on an individual date were included in the analysis, i.e. sampling events
which occurred in only one location were omitted. The regression analysis was then performed a
second time, removing baseflow samples from the dataset, to determine if the effect of the
BMPs and stream restoration could more strongly be seen for stormflow events. Results of the
analysis are presented in Figures 2 & 3 below.
For the analysis on all flow events, R3 = - 0.3360. The result signifies that in effect, if downstream
and post- construction, on average TN concentrations will be 0.3360 mg /L lower than predicted
in the absence of the project for all flow events. For stormflow events only, (33 = - 0.4227. If
downstream and post- construction, on average TN concentrations will be 0.4227 mg /L lower
than predicted in the absence of the project for storm events. This is a 27% reduction from the
average pre- construction upstream stormflow concentration.
It should be noted that p- values for (33 were high for both analyses (p = 0.3927 and 0.3237,
respectively). This signifies that there is high variability in the data, and the results are not
statistically significant despite the decreased concentration levels that the model attributed to
the project, due in large part to the substantial variation in observed concentrations.
Stantec

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
Figure 2 Regression analysis results (baseflow and stormflow events)
SUMMARY OUTPUT
Regression Statistics
Multiple R
0.3710
R Square
0.1376
Adjusted R Square
0.0837
Standard Error
0.6940
Observations
52
ANOVA
df
SS
MS
F
Significance F
Regression
3
3.6893
1.2298
2.5536
0.0664
Residual
48
23.1158
0.4816
Total
51
26.8051
Coefficients Standard Error
t Stat
P -value
Lower 95%
Upper 95%
Lower 95.0%
Upper 95.0%
Intercept
1.2898
0.1792
7.1984
0.0000
0.9295
1.6501
0.9295
1.6501
Location (d)
0.2327
0.2534
0.9185
0.3630
- 0.2768
0.7422
- 0.2768
0.7422
Construction Time (f)
- 0.3360
0.2755
- 1.2198
0.2285
- 0.8899
0.2178
- 0.8899
0.2178
Multiplier (g)
- 0.3360
0.3896
- 0.8625
0.3927
- 1.1193
0.4473
- 1.1193
0.4473
Figure 3 Regression analysis results (stormflow events only)
SUMMARY OUTPUT
Regression Statistics
Multiple R
0.4410
R Square
0.1944
Adjusted R Square
0.1340
Standard Error
0.6898
Observations
44
ANOVA
df
SS
MS
F
Significance F
Regression
3
4.5939
1.5313
3.2184
0.0327
Residual
40
19.0320
0.4758
Total
43
23.6259
Coefficients Standard Error
t Stat
P -value
Lower 95%
Upper 95%
Lower 95.0%
Upper 95.0%
Intercept
1.419
0.1913
7.4172
0.0000
1.0323
1.8057
1.0323
1.8057
Location (d)
0.2532
0.2706
0.9357
0.3551
- 0.2937
0.8000
- 0.2937
0.8000
Construction Time (f)
- 0.4056
0.2991
- 1.3559
0.1827
- 1.0101
0.1990
- 1.0101
0.1990
Multiplier (g)
- 0.4227
0.4230
- 0.9993
0.3237
- 1.2776
0.4322
- 1.2776
0.4322
Stantec
10

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
The feasibility study for this project (Stantec 2005 and 2008) investigated land use to estimate
annual pollutant loads, and literature values for BMP percent pollutant reduction rates to
estimate potential nitrogen load reduction by the project. While the MOA specified a 19%
reduction in loads, the feasibility study estimated a potential 24% reduction in annual nitrogen
loads by the project.
Statistical analysis of pre- and post- construction water quality data showed that on average,
nitrogen concentrations were lowered by the treatment of the BMPs and stream restoration
project by 27%; however, the results were not statistically significant due to the variability in the
data. Literature values of BMP pollutant reductions in stormwater wetlands are estimated to be
40% for nitrogen (NCDENR, 2009). Stream restoration projects are noted to attenuate nitrogen
loads as well via reconnecting the stream to the floodplain and decreasing stream velocities.
Stantec

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - FINAL REPORT
6.0 REFERENUs
Stantec 2005. Nitrogen Removal BMP Project Feasibility Study. Prepared for the Town of Cary.
Prepared by Stantec Consulting Services, Inc. September 2005.
Stantec 2008. Nitrogen Removal BMP Project Phase II Feasibility Study. Prepared for the Town of
Cary. Prepared by Stantec Consulting Services, Inc. January 2008.
NCDENR 2009. NCDENR Stormwater BMP Manual. Chapter 9. Stormwater Wetlands. Revised 07-
10 -2009. Available at: httr): / /r)ortal.ncdenr.orQ /c /document library /aet file ?uuid= ed7e696f-
eb72- 473d -b81 f- cc7df68d l Oec&arour)ld =38364
Stantec
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MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY — FINAL REPORT
Appendix A Post- Construction Laboratory Reports
August 20, 2015
Appendix A POST- CUNSTKU(. i ivN
5 Stantec
A.1

ENCOLabtwafories
3
Y
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Wednesday, August 7, 2013
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Maynard N Removal
ENCO Workorder(s): C309605
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Monday, July 29, 2013.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
www,encolabs.com
SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Site 1 -DS
Lab ID: C309605 -01
Sampled: 07/29/13 14:50 Received: 07/29/13 15:30
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
08/26/13
08/02/13
11:55
08/05/13 09:43
EPA 353.2
07/31/13 14:50
07/30/13
13:11
07/30/13 14:20
EPA 353.2
08/26/13
07/31/13
07:20
07/31/13 12:02
EPA 353.2
04/23/16
07/31/13
14:34
07/31/13 14:42
Client ID: Site 10 -US
Lab ID: C309605 -02
Sampled: 07/29/13 09:45 Received: 07/29/13 15:30
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
08/26/13
08/02/13
11:55
08/05/13 09:45
EPA 353.2
07/31/13 09:45
07/30/13
13:11
07/30/13 14:22
EPA 353.2
08/26/13
07/31/13
07:20
07/31/13 12:02
EPA 353.2
04/23/16
07/31/13
14:34
07/31/13 14:42
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: Site 1 -DS
Lab ID:
C309605 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Total Kjeldahl Nitrogen
0.50
0.26
0.48
mg /L
EPA 351.2
Client ID: Site 30 -US
Lab ID:
C309605 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.16
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.18
0.041
0.10
mg /L
EPA 353.2
Nitrite as N
0.023
1
0.017
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.64
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

Description: Site 1 -DS
Matrix: Surface Water
Project: Maynard N Removal
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
ANALYTICAL RESULTS
Lab Sample ID:C309605 -01
Sampled: 07/29/13 14:5 0
Sampled By: Kristin Weidner
Analvte fCAS Numberl
Results
Flaa
Units
DF MDL P L Batch
Nitrate as N [14797- 55 -8]1
0.025
U
mg /L
1 0.025 0.10 3G31026
Nitrate /Nitrite as N [ECL- 0010]1
0.041
U
mg /L
1 0.041 0.10 3G31002
Nitrite as N [14797- 65 -0]^
0.017
U
mg /L
1 0.017 0.10 3G30019
Total Kjeldahl Nitrogen [ECL- 0162]^
0.50
3G31002
mg /L
1 0.26 0.48 3HO2005
Description: Site 10 -US
J mg /L
1
0.017
Lab Sample ID:C309605 -02
Matrix: Surface Water
EPA 353.2
Total Kjeldahl Nitrogen [ECL- 0162]^
0.64
Sampled: 07 /29/13 09:45
Project: Maynard N Removal
0.26
0.48
3HO2005
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
9 0 E (D
www.encolabs.com
Received: 07/29/13 15:30
Work Order: C309605
Method
Analyzed
I
By Notes
EPA 353.2
07/31/13 14:42
JCS
EPA 353.2
07/31/13 12:02
JCS
EPA 353.2
07/30/13 14:20
JCS
EPA 351.2
08/05/13 09:43
JCS
EPA 353.2
Received: 07/29/13 15:30
0.18
Work Order: C309605
Analvte fCAS Numberl
Results
Flaa Units
DF
MDL
P L
Batch
Method
Nitrate as N [14797- 55 -8]^
0.16
mg /L
1
0.025
0.10
3G31026
EPA 353.2
Nitrate /Nitrite as N [ECL- 0010]^
0.18
mg /L
1
0.041
0.10
3G31002
EPA 353.2
Nitrite as N [14797- 65 -0]^
0.023
J mg /L
1
0.017
0.10
3G30019
EPA 353.2
Total Kjeldahl Nitrogen [ECL- 0162]^
0.64
mg /L
1
0.26
0.48
3HO2005
EPA 351.2
Analyzed
By Notes
07/31/13 14:42
JCS
07/31/13 12:02
JCS
07/30/13 14:22
JCS
08/05/13 09:45
JCS
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 3G30019 - NO PREP
Blank (3G30019 -BLK3)
QUALITY CONTROL DATA
Analvte
Result
Flaq
Q
Nitrite as N
0.017
U
0.10
I LCS (3G30019-BSI)
mg /L
Level Result %REC Limits RPD
Limit
Analvte
Result
Flaq
POL
Nitrite as N
0.95
Units
0.10
I LCS (3G30019-BS2)
mg /L
1.00 95 90 -110
Analvte
Result
Flaq
POL
Nitrite as N
0.96
Units
0.10
I LCS (3G30019-BS3)
mg /L
1.00 96 90 -110
Limit
Analvte
Result
Flag
Pall-
Nitrite as N
0.97
Units
0.10
I LCS (3G30019-BS4)
mg /L
1.00 97 90 -110
Analvte
Result
Flaq
POL
Nitrite as N
0.96
Units
0.10
Matrix Spike (3G30019 -MSS)
mg /L
1.00 96 90 -110
Limit
Source: C309605 -03
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:21
Analvte
Result
Flaq
POL
Nitrite as N
0.98
1.00 0.017 U 98 90 -110
0.10
Matrix Spike Dup (3G30019 -MSD1)
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:22
Source: C309605 -03
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flag
PQL
Nitrite as N
1.0
0.10
Batch 3G31002 - NO PREP
9 0 E (D
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I Blank (3G33002 -BLK3) Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:12
Analvte
Nitrate /Nitrite as N
ILCS(3G33002 -BSS)
Analvte
Nitrate /Nitrite as N
Matrix Spike (3G31002 -MS1)
Source: C308252 -02
Analyte
FINAL
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:19
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Level Result %REC Limits RPD
Limit
0.041
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 13:59
0.10
mg /L
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 95 90 -110
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:25
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 96 90 -110
Limit
1.3
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:44
0.10
mg /L
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 97 90 -110
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:49
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 96 90 -110
Limit
This report relates only to the sample as received by the laboratory, and may only be reproduced in full.
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:21
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 98 90 -110
Prepared: 07/30/2013 13:11 Analyzed: 07/30/2013 14:22
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 100 90 -110 1
10
I Blank (3G33002 -BLK3) Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:12
Analvte
Nitrate /Nitrite as N
ILCS(3G33002 -BSS)
Analvte
Nitrate /Nitrite as N
Matrix Spike (3G31002 -MS1)
Source: C308252 -02
Analyte
FINAL
Notes
I
Notes
I
Notes
I
Notes
I
Notes
I
Notes
M
Notes
Notes
M
Notes
I
Notes
Page 5 of 8
Spike Source %REC
RPD
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
0.041
U
0.10
mg /L
Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:16
Spike Source %REC
RPD
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
1.3
0.10
mg /L
1.25 103 90 -110
Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:21
Spike Source %REC
RPD
Result
Flaq
Q
Units
Level Result %REC Limits RPD
Limit
This report relates only to the sample as received by the laboratory, and may only be reproduced in full.
Notes
I
Notes
I
Notes
I
Notes
I
Notes
I
Notes
M
Notes
Notes
M
Notes
I
Notes
Page 5 of 8

IQUALITY CONTROL DATA
(961EP)
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Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:21
(Classical Chemistry Parameters - Quality Control
RPD
Batch 3G31001- NO PREP - Continued
Level Result %REC Limits RPD
Limit
Matrix Spike (3G31002 -MS1) Continued
5.00 11 46 90 -110
Source: C308252 -02
Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:23
Analvte
Result
Flag
Q
Nitrate /Nitrite as N
14
5.00 11 54 90 -110 3
1.0
Matrix Spike Dup (3G31002 -MSD3)
Prepared: 08/02/2013 11:55 Analyzed: 08/05/2013 09:14
Source: C308252 -02
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
14
1.0
Batch 3H02005 - Same
RPD
Units
Level Result %REC Limits RPD
Blank (311-102005 -BLKi)
mg /L
12.0 99 90 -110
Analvte
Result
Flaci
POL
Total Kjeldahl Nitrogen
0.26
U
0.48
1LCS(31-102005 -BS1)
mg /L
4.79 4.1 99 90 -110
Analvte
Result
Flag
PQL
Total Kjeldahl Nitrogen
12
Units
0.48
Matrix Spike (31-102005 -MS1)
mg /L
4.79 4.1 105 90 -110 3
10
Source: C308252 -02
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
8.9
0.48
Matrix Spike Dup (31-102005 -MS131)
Source: C308252 -02
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
9.2
0.48
(961EP)
www.encolabs.com
1
7
Notes
QM -05
I
Notes
QM -05
I
Notes
I
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:21
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
5.00 11 46 90 -110
Prepared: 07/31/2013 07:20 Analyzed: 07/31/2013 11:23
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
5.00 11 54 90 -110 3
10
Prepared: 08/02/2013 11:55 Analyzed: 08/05/2013 09:14
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 08/02/2013 11:55 Analyzed: 08/05/2013 09:17
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 99 90 -110
Prepared: 08/02/2013 11:55 Analyzed: 08/05/2013 09:21
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 4.1 99 90 -110
Prepared: 08/02/2013 11:55 Analyzed: 08/05/2013 09:23
Spike Source %REC
RPD
Units
Level Result o /.REC Limits RPD
Limit
mg /L
4.79 4.1 105 90 -110 3
10
1
7
Notes
QM -05
I
Notes
QM -05
I
Notes
I
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
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I FLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
QM -05 The spike recovery was outside acceptance limits for the MS and /or MSD due to matrix
interference. The LCS and /or LCSD were within acceptance limits showing that the laboratory is
in control and the data is acceptable.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

Sample Kit Prepared By. ; Date. Time
Cornnients!Sfaeual Reporting ReguiremerTs
Relinquished By
R inyuiseI� he����j
Ralrnyuished By
Total # of Confainers
Data..•'Time Re[.ei +; -d
DaleiThnn. Received Bv U
Date,Time Recerved By
cooler It's R Temps an Receipt .... . , tttC ondi tpon Receiut
Acceptable
o Yix :.GW- Groundwater SO -Sort DW Orinkrna 4Valnr SE Sediment SW- Surface UNatnr W W )Arast. stater A -Air G -other (detail Irr orrirnerls) Preservation: f -tee H -HCa N -HNO3 S SO4 NO -NaOl` I O- D[Iier /detail in. ccrnrnen[s)
i uir—: All samples 31100111ted to ENCO Lab:; are in accordance with the rr rms and corWRluns li. lI J on flit reverse of this larrr. unless Pnor written agren.ments exist
r
Diate.•7im
DatelTime !
Datel-ime
Unacceptable
ENVIRONMENTAL CONSERVATION LABORATORIES
CHAIN-OF-CUSTODY RECORD
www.encolabs.com
10775 CE'ntral Port Dr. 4H10 Executive Park Court Suite 711
(el
1W A Waodwirds Industrial [a.
-
LEE)) Or to .i F'I. 3 ?E3 ?4 Jacksonville, FL 32216-6069
Cary NC 27511
(407) 826-5:3-14 Fax j407) 850- 69,15 (904) 296 -3007 Fax (904) 236 - 6210
1919) 467 -3090 Fax[phone]
Page of �
Client Name Project Number
V,) GL
-
Requested Analyses
Requested Turnaround
times
Address Projeci NarneiDP,%
�
60 151`/E � Yl -j-I to 1`c,, Sk- ! t y,,,a (.j[ 1 ' r ICY'-
Note: Rush requests subject to
aecop3ance by the fiacllity
City,`S'T/7ip PO d 1 Billlnq Info
ip, f1iLG__
Standard
Tel 1 Fax HeporlinrJ CnntOct
Expedited
Sampler(s) Name. Affiliation (Print) Biding Contact
K{ �y, L .�. Ex,/� ter iL-Y ,� �/ Ii'1�.�y {,�`,+} � /'j�i�
"7 t 0! T S i�=99r1 i''C�' i!1•'�. 1 V vS/`t.- 'tom
�
t
�"�r r,
► _1
Que. f 1
KL J1 +� Y �-C:lY ' l
Site Locattiion/ Time.Zone
Samplcr(s) Signature ��y
�
�
, °r��']P
�
Preservation ;Snr* Code =; (CSomhrnv
Lab Workorder
ac neeessary)
Collection Matrix Total d of
Penn 4 Sample ID (Field Identification) collection pale Time Comp i Crab (Gee,CDde5) Containers
Sample. Comments
v4
4 j
- --
_.. --•-
Sample Kit Prepared By. ; Date. Time
Cornnients!Sfaeual Reporting ReguiremerTs
Relinquished By
R inyuiseI� he����j
Ralrnyuished By
Total # of Confainers
Data..•'Time Re[.ei +; -d
DaleiThnn. Received Bv U
Date,Time Recerved By
cooler It's R Temps an Receipt .... . , tttC ondi tpon Receiut
Acceptable
o Yix :.GW- Groundwater SO -Sort DW Orinkrna 4Valnr SE Sediment SW- Surface UNatnr W W )Arast. stater A -Air G -other (detail Irr orrirnerls) Preservation: f -tee H -HCa N -HNO3 S SO4 NO -NaOl` I O- D[Iier /detail in. ccrnrnen[s)
i uir—: All samples 31100111ted to ENCO Lab:; are in accordance with the rr rms and corWRluns li. lI J on flit reverse of this larrr. unless Pnor written agren.ments exist
r
Diate.•7im
DatelTime !
Datel-ime
Unacceptable

ENCOLabtwafories
3
Y
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, October 15, 2013
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Maynard N Removal
ENCO Workorder(s): C313093
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, October 8, 2013.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Site 10 -US
Lab ID: C313093 -01
Sampled: 10/08/13 09:15 Received: 10/08/13 10:27
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date/Time(s).
EPA 351.2
11/05/13
10/09/13
11:19
10/10/13 10:54
EPA 353.2
10/10/13 09:15
10/09/13
09:04
10/09/13 09:04
EPA 353.2
11/05/13
10/08/13
15:18
10/08/13 15:18
EPA 353.2
07/03/16
10/09/13
11:41
10/09/13 12:56
Client ID: Site 1 -DS
Lab ID: C313093 -02
Sampled: 10/08/13 10:10 Received: 10/08/13 10:27
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
11/05/13
10/09/13
11:19
10/10/13 10:57
EPA 353.2
10/10/13 10:10
10/09/13
09:05
10/09/13 09:05
EPA 353.2
11/05/13
10/08/13
15:19
10/08/13 15:19
EPA 353.2
07/03/16
10/09/13
11:41
10/09/13 12:56
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
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SAMPLE DETECTION SUMMARY
Client ID: Site 30 -US
Lab ID:
C313093 -01
Anal a
Results
Flaa MDL
POLL
Units
Method Notes
Total Kjeldahl Nitrogen
0.62
0.26
0.48
mg /L
EPA 351.2
Client ID: Site 1 -DS
Lab ID:
C313093 -02
Anal a
Results
Flaa MDL
POLL
Units
Method Notes
Total Kjeldahl Nitrogen
0.65
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8
9 0 E (D
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ANALYTICAL RESULTS
1
Description: Site 10 -US
Lab Sample ID:C313093 -01
Received: 10/08/13 10:27
Matrix: Surface Water
Sampled: 10 /08/13 09:15
Work Order: C313093
Project: Maynard N Removal
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
Analvte fCAS Numberl Results
Flag Units
DF MDL P L Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8]1
0.025
U mg /L
1 0.025 0.10 3]09019
EPA 353.2
10/09/13 12:56 CV
Nitrate /Nitrite as N [ECL- 0010]1
0.041
U mg /L
1 0.041 0.10 3308001
EPA 353.2
10/08/13 15:18 Clv
Nitrite as N [14797- 65 -0]^
0.017
U mg /L
1 0.017 0.10 3309002
EPA 353.2
10/09/13 09:04 clv
Total Kjeldahl Nitrogen [ECL- 0162]^
0.62
mg /L
1 0.26 0.48 3109007
EPA 351.2
10/10/13 10:54 Clv
Description: Site 1 -DS
Lab Sample ID:C313093 -02
Received: 10/08/13 10:27
Matrix: Surface Water
Sampled: 10 /08/13 10:10
Work Order: C313093
Project: Maynard N Removal
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
•
^ - ENCO Cary certified analyte [NC 591]
Analvte fCAS Numberl Results
Flag Units
DF MDL P L Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8]^
0.025
U mg /L
1 0.025 0.10 3309019
EPA 353.2
10/09/13 12:56 CV
Nitrate /Nitrite as N [ECL- 0010]^
0.041
U mg /L
1 0.041 0.10 3308001
EPA 353.2
10/08/13 15:19 clv
Nitrite as N [14797- 65 -0]^
0.017
U mg /L
1 0.017 0.10 3309002
EPA 353.2
10/09/13 09:05 clv
Total Kjeldahl Nitrogen [ECL- 0162]^
0.65
mg /L
1 0.26 0.48 3109007
EPA 351.2
10/10/13 10:57 cly
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

9 0 E (D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
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QUALITY CONTROL DATA
(Classical Chemistry Parameters - Quality Control
1
Batch 3108001 - NO PREP
Blank (3308001 -BLK3)
Prepared: 10/08/2013 12:50 Analyzed: 10/08/2013 12:50
Spike Source %REC
RPD
Analvte
Result
Flaq
Q
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
0.041
U
0.10
mg /L
LCS (3308001 -BSI)
Prepared: 10/08/2013 13:17 Analyzed: 10/08/2013 13:17
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
1.2
0.10
mg /L
1.25 95 90 -110
Matrix Spike (3308001 -MS1)
Prepared: 10/08/2013 13:25 Analyzed: 10/08/2013 13:25
Source: C309375 -03
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
0.17
0.10
mg /L
0.513 0.19 NR 90 -110
QM -07
Matrix Spike Dup (3308001 -MSD1)
Prepared: 10/08/2013 13:28 Analyzed: 10/08/2013 13:28
Source: C309375 -03
Spike Source %REC
RPD
Analvte
Result
Flag
_Pall-
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
0.17
0.10
mg /L
0.513 0.19 NR 90 -110 0.2
10
QM -07
Batch 3109002 - NO PREP
Blank (3309002 -BLKI)
Prepared: 10/09/2013 08:57 Analyzed: 10/09/2013 08:57
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
0.017
U
0.10
mg /L
LCS (3309002 -BS1)
Prepared: 10/09/2013 08:28 Analyzed: 10/09/2013 08:28
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
0.98
0.10
mg /L
1.00 98 90 -110
Matrix Spike (3309002 -MS3)
Prepared & Analyzed: 10/09/2013 09:01
Source: C312748 -03
Spike Source %REC
RPD
Analyte
Result
Flan
P2
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
1.0
0.10
mg /L
1.00 0.017 U 103 90 -110
Matrix Spike Dup (3309002 -MSDI)
Prepared: 10/09/2013 09:01 Analyzed: 10/09/2013 09:01
Source: C312748 -03
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
1.1
0.10
mg /L
1.00 0.017 U 105 90 -110 2
10
Batch 3109007 - Same
Blank (3309007 -BLK1)
Prepared: 10/09/2013 11:19 Analyzed: 10/10/2013 09:57
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Total Kjeldahl Nitrogen
0.26
U
0.48
mg /L
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 3109007 - Same - Continued
LCS(3309007 -BS1)
Analvte
Total Kjeldahl Nitrogen
Matrix Spike (3709007 -MS1)
Source: C308705 -01
Analvte
Total Kjeldahl Nitrogen
Matrix Spike Dup (3309007 -MSD1)
Source: C308705 -03
Analvte
Total Kjeldahl Nitrogen
QUALITY CONTROL DATA
Result Flag Q
12 0.48
Result Flaq POL
6.0 0.48
Result Flaq POL
6.0 0.48
9 0 E (D
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Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 10/09/2013 11:19 Analyzed: 10/10/2013 10:00
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 100 90 -110
Prepared: 10/09/2013 11:19 Analyzed: 10/10/2013 10:04
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 1.2 101 90 -110
Prepared: 10/09/2013 11:19 Analyzed: 10/10/2013 10:06
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 1.2 100 90 -110 0.7
10
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
www.encolabs.com
I FLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
QM -07 The spike recovery was outside acceptance limits for the MS and /or MSD. The batch was
accepted based on acceptable LCS recovery.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

ENVIRONMENTAL CONSERVATION LABORATORIES CHA[N-OF-CUSTODY RECORD
1;'.,'.7, I. r.mml P.-ir fJr r, 1 D 1_ ,� r ij li Ve P.3 r k �.:. o i i 11. (,Ur� , I!11 ---. ', Ncm.w.ids dio�1HAtCl
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Rwml",,j Prilirq(.ii.;�pfll Gy [m:!! Tn &: �1
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�°queSted Tumwairko
r1me!3
14g.L : Ru'. it quam 3uoecl to
accl3pmoce by Me l?rkry
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— Expedited
Due
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2
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14 ili, -III 4;rrohi. In =N! -0 Lihn dn' 1 Willi -I,- nmlw .!!n.1 14U, 1­1 al, h, 1 ,ivw LIJ )1 11• 1..11 j, klpVic m:41.n apie.q-,
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Page of j
�°queSted Tumwairko
r1me!3
14g.L : Ru'. it quam 3uoecl to
accl3pmoce by Me l?rkry
Standalrd
— Expedited
Due
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2
Sample Commonis
::,:r, it A P nm, , . - °n Hi yipl Gwu,,vn Uptvt fldcei3t
idtim r,, in rr,jmm­1;:
m r %V-jlnj WW-Wisl-vortr A Ait PresmrwiNion; I Irn 14 1 C! 14 HNID3 e- 01213('} 1 NO -Ra0l I 0.011im Idnwil in cor7ww"Inj
14 ili, -III 4;rrohi. In =N! -0 Lihn dn' 1 Willi -I,- nmlw .!!n.1 14U, 1­1 al, h, 1 ,ivw LIJ )1 11• 1..11 j, klpVic m:41.n apie.q-,
- A. -r'1'1. -
t j -Iq :r r) I a E31 e

ENCOLabtwafories
3
Y
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, December 17, 2013
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Maynard N Removal
ENCO Workorder(s): C315855
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, December 10, 2013.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Site 1 -DS
Lab ID: C315855 -01
Sampled: 12/10/13 11:45 Received: 12/10/13 12:15
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
01/07/14
12/13/13
10:44
12/16/13 10:56
EPA 353.2
12/12/13 11:45
12/10/13
17:31
12/10/13 17:31
EPA 353.2
01/07/14
12/13/13
07:42
12/13/13 12:22
EPA 353.2
09/04/16
12/16/13
11:03
12/16/13 11:15
Client ID: Site 10 -US
Lab ID: C315855 -02
Sampled: 12/10/13 11:00 Received: 12/10/13 12:15
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
01/07/14
12/13/13
10:44
12/16/13 10:58
EPA 353.2
12/12/13 11:00
12/10/13
17:33
12/10/13 17:33
EPA 353.2
01/07/14
12/13/13
07:42
12/13/13 12:23
EPA 353.2
09/04/16
12/16/13
11:03
12/16/13 11:15
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: Site 1 -DS
Lab ID:
C315855 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.18
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.18
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.55
0.26
0.48
mg /L
EPA 351.2
Client ID: Site 30 -US
Lab ID:
C315855 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.20
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.22
0.041
0.10
mg /L
EPA 353.2
Nitrite as N
0.017
1
0.017
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.63
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8
9 0 E (D
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ANALYTICAL RESULTS
1
Description: Site 1 -DS
Lab Sample ID:C315855 -01
Received: 12/10/13 12:15
Matrix: Surface Water
Sampled: 12 /10/13 11:45
Work Order: C315855
Project: Maynard N Removal
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
Analvte fCAS Numberl Results
Flag Units
DF MDL P L Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8] A
0.18
mg /L
1 0.025 0.10 31-16017
EPA 353.2
12/16/13 11:15 CV
Nitrate /Nitrite as N [ECL- 0030]A
0.18
mg /L
1 0.041 0.10 31-13002
EPA 353.2
12/13/13 12:22 Clv
Nitrite as N [14797- 65 -0]A
0.017
U mg /L
1 0.017 0.10 31-10028
EPA 353.2
12/10/13 17:31 clv
Total Kjeldahl Nitrogen [ECL- 0162]A
0.55
mg /L
1 0.26 0.48 31-13003
EPA 351.2
12/16/13 10:56 Clv
Description: Site 10 -US
Lab Sample ID:C315855 -02
Received: 12/10/13 12:15
Matrix: Surface Water
Sampled: 12 /10/13 11:00
Work Order: C315855
Project: Maynard N Removal
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
•
^ - ENCO Cary certified analyte [NC 591]
Analvte fCAS Numberl Results
Flag Units
DF MDL P L Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8] A
0.20
mg /L
1 0.025 0.10 31-16017
EPA 353.2
12/16/13 11:15 CV
Nitrate /Nitrite as N [ECL- 0030]A
0.22
mg /L
1 0.041 0.10 3L13002
EPA 353.2
12/13/13 12:23 clv
Nitrite as N [14797- 65 -0] A
0.017
J mg /L
1 0.017 0.10 31-10028
EPA 353.2
12/10/13 17:33 clv
Total Kjeldahl Nitrogen [ECL- 0162]A
0.63
mg /L
1 0.26 0.48 31-13003
EPA 351.2
12/16/13 10:58 cly
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

9 0 E (D
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
www,encolabs.com
QUALITY CONTROL DATA
(Classical Chemistry Parameters - Quality Control
1
Batch 3L10028 - NO PREP
Blank (311-10028 -BLKl)
Prepared: 12/10/2013 16:18 Analyzed: 12/10/2013 16:18
Spike Source %REC
RPD
Analvte
Result
Flaq
Q
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
0.017
U
0.10
mg /L
LCS (311-10028 -BSS)
Prepared: 12/10/2013 16:05 Analyzed: 12/10/2013 16:05
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
0.96
0.10
mg /L
1.00 96 90 -110
Matrix Spike (3L10028 -MS3)
Prepared: 12/10/2013 17:23 Analyzed: 12/10/2013 17:23
Source: C315401 -03
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
1.1
0.10
mg /L
1.00 0.017 U 107 90 -110
Matrix Spike Dup (3L10028 -MSD1)
Prepared: 12/10/2013 17:24 Analyzed: 12/10/2013 17:24
Source: C315401 -03
Spike Source %REC
RPD
Analvte
Result
Flag
_Pall-
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrite as N
1.1
0.10
mg /L
1.00 0.017 U 106 90 -110 0.8
10
Batch 3L13002 - NO PREP
Blank (311-33002 -BLKI)
Prepared: 12/13/2013 07:42 Analyzed: 12/13/2013 11:03
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
0.041
U
0.10
mg /L
LCS (311-13002 -BSI)
Prepared: 12/13/2013 07:42 Analyzed: 12/13/2013 11:01
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
1.3
0.10
mg /L
1.25 102 90 -110
Matrix Spike (311-13002 -11VISl)
Prepared: 12/13/2013 07:42 Analyzed: 12/13/2013 11:12
Source: C311807 -03
Spike Source %REC
RPD
Analyte
Result
Flan
P2
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
1.2
0.10
mg /L
0.513 0.56 117 90 -110
QM -05
Matrix Spike Dup (3L33002 -MSDi)
Prepared: 12/13/2013 07:42 Analyzed: 12/13/2013 11:14
Source: C311807 -03
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Nitrate /Nitrite as N
1.2
0.10
mg /L
0.513 0.56 120 90 -110 2
10
QM -05
Batch 3L13003 - Same
Blank (3L13003 -BLK1)
Prepared: 12/13/2013 10:44 Analyzed: 12/16/2013 10:00
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Notes
Total Kjeldahl Nitrogen
0.26
U
0.48
mg /L
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 3[13003 - Same - Continued
LCS (311-13003 -1353)
Analvte
Total Kjeldahl Nitrogen
Matrix Spike (311-13003 -MS1)
Source: C311807 -01
Analvte
Total Kjeldahl Nitrogen
Matrix Spike Dup (311-13003 -MSD1)
Source: C311807 -01
Analvte
Total Kjeldahl Nitrogen
QUALITY CONTROL DATA
Result Flag Q
12 0.48
Result Flaq POL
5.5 0.48
Result Flaq POL
5.6 0.48
9 0 E (D
www.encolabs.com
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 12/13/2013 10:44 Analyzed: 12/16/2013 10:03
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 104 90 -110
Prepared: 12/13/2013 10:44 Analyzed: 12/16/2013 10:07
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 0.72 100 90 -110
Prepared: 12/13/2013 10:44 Analyzed: 12/16/2013 10:09
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 0.72 102 90 -110 2
10
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
www.encolabs.com
I FLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
QM -05 The spike recovery was outside acceptance limits for the MS and /or MSD due to matrix
interference. The LCS and /or LCSD were within acceptance limits showing that the laboratory is
in control and the data is acceptable.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

ENVIRONMENTAL CONSERVATION LABORATORIES CHAIN -OF- CUSTODY RECORD
10775 Central Port Dr. 4810 Executive Park Court, Suite 211 102 -A Woodwinds Industrial Ct.
((El Orlando, FL 32824 Jacksonville, FL 32216 -6069 • Cary, NC 27511 (9) r (407) 826 -5314 Fax [phone] (964) 296 -3007 Fax [phone] (919) 4673090 Fax [phone]
Client,Name Project Number - Requested Analyses
Address Project Name /Desc
Yves Vn—)
City/ST /Zip PO t / Billin (yinfo
www.encolabs.com
Page d of P
Requested Turnaround
Times
Note : Rush requests subject to
acceptance by the facility
✓ Standard
Tel `✓
3U, 6
Fax
Reporting Contact
� Yi" -'t �`1 t l
Sampler(s) Name, Affiliation (Print)
V1 CCs
Billing Contact
K',i,r hYl
Sampler(s �
Site Location /Time Zone
u '
_
Item # Sample ID (Field Identification) Collection D/aatte
Collection Matrix
Time Comp / Grab (see codes)
2_110/[;
L
f 1 `l�roa
www.encolabs.com
Page d of P
Requested Turnaround
Times
Note : Rush requests subject to
acceptance by the facility
✓ Standard
< Total # of Containers
Sample Kit Prepared By Date/Time Ill inquis y Date/Time Receji"�ved
eci IRe Reporting Requirements Relinquished Dale(Timey P� ceComments/Sp - a p g q �7 Relinquished By DateMme R e
Dale/Time
Dale/Time
DatelTlme
Cooler #'s &Tamps on Receipt IConditioonReceipl
m i
_Acceptable U n accepiab le
o Matrix : GW- Groundwater SO -Soil DW- Urinking Water SE- Sediment SW- Sadace Water WW- Waslemater A -Air O -Dther (detail in comments( Preservation: I Ice H -RCI N-HNC3 S -H2SO4 ND -NaOH O -Other (delail in comments)
Note All samples submitted to Ell Labs are in accordance with the terms and conditions listed on the reverse of this form, unless prior written agreements exist
Expedited
Due
14
.I1
4')
Z
_Q
�
Lab Workorder
Preservation (See Codes) (Combir e as necessary)
Total # of
Containers
Sample Comments
r
�6
< Total # of Containers
Sample Kit Prepared By Date/Time Ill inquis y Date/Time Receji"�ved
eci IRe Reporting Requirements Relinquished Dale(Timey P� ceComments/Sp - a p g q �7 Relinquished By DateMme R e
Dale/Time
Dale/Time
DatelTlme
Cooler #'s &Tamps on Receipt IConditioonReceipl
m i
_Acceptable U n accepiab le
o Matrix : GW- Groundwater SO -Soil DW- Urinking Water SE- Sediment SW- Sadace Water WW- Waslemater A -Air O -Dther (detail in comments( Preservation: I Ice H -RCI N-HNC3 S -H2SO4 ND -NaOH O -Other (delail in comments)
Note All samples submitted to Ell Labs are in accordance with the terms and conditions listed on the reverse of this form, unless prior written agreements exist

ENCOLabtwafories
3
Y
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, January 13, 2014
Stantec Consulting, Inc. (ST018)
Attn: Brad Fairly
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C315256
Dear Brad Fairly,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Monday, January 6, 2014.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

ENCOLabtwafories
3
Y
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, February 17, 2014
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C400187
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Monday, February 10, 2014.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C400187 -01
Sampled: 02/10/14 15:00 Received: 02/10/14 15:15
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
03/10/14
02/14/14
10:17
02/17/14 10:12
EPA 353.2
02/12/14 15:00
02/11/14
08:26
02/11/14 08:26
EPA 353.2
03/10/14
02/11/14
12:58
02/11/14 12:58
EPA 353.2
11/05/16
02/17/14
10:22
02/17/14 10:36
Client ID: Downstream
Lab ID: C400187 -02
Sampled: 02/10/14 13:45 Received: 02/10/14 15:15
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
03/10/14
02/14/14
10:17
02/17/14 10:14
EPA 353.2
02/12/14 13:45
02/11/14
08:29
02/11/14 08:29
EPA 353.2
03/10/14
02/11/14
13:05
02/11/14 13:05
EPA 353.2
11/05/16
02/17/14
10:22
02/17/14 10:36
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C400187 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.054
1
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.054
1
0.041
0.10
mg /L
EPA 353.2
Client ID: Downstream
Lab ID:
C400187 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.041
1
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.041
1
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.75
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

Description: Upstream
Matrix: Surface Water
Project: Town of Cary
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
ANALYTICAL RESULTS
Lab Sample ID:C400187 -01
Sampled: 02/10/14 15:00
Sampled By: Kristin Weidner
Analvte fCAS Numberl
Results
Flaa
Units
DF MDL P L Batch
Nitrate as N [14797- 55 -8]^
0.054
J
mg /L
1 0.025 0.10 4617019
Nitrate /Nitrite as N [ECL- 0030]^
0.054
J
mg /L
1 0.041 0.10 4611006
Nitrite as N [14797- 65 -0]^
0.017
U
mg /L
1 0.017 0.10 4611004
Total Kjeldahl Nitrogen [ECL- 0162]^
0.26
U
mg /L
1 0.26 0.48 4614002
Description: Downstream
EPA 353.2
Nitrite as N [14797- 65 -0]^
0.017
Lab Sample ID:C400187 -02
Matrix: Surface Water
1
0.017
0.10
Sampled: 02 /10/14 13:45
Project: Town of Cary
Total Kjeldahl Nitrogen [ECL- 0162]^
0.75
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
9 6 1 ES
www.encolabs.com
Received: 02/10/14 15:15
Work Order: C400187
Method
I
Analyzed By Notes
EPA
353.2
02/17/14 10:36 CV
EPA
353.2
02/11/14 12:58 Clv
EPA
353.2
02/11/14 08:26 Clv
EPA
351.2
02/17/14 10:12 Clv
0.025
0.10
Received: 02/10/14 15:15
EPA 353.2
Nitrate /Nitrite as N [ECL - 0030]^
Work Order: C400187
Analvte fCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Nitrate as N [14797- 55 -8]^
0.041
J
mg /L
1
0.025
0.10
4617019
EPA 353.2
Nitrate /Nitrite as N [ECL - 0030]^
0.041
J
mg /L
1
0.041
0.10
4611006
EPA 353.2
Nitrite as N [14797- 65 -0]^
0.017
U
mg /L
1
0.017
0.10
4611004
EPA 353.2
Total Kjeldahl Nitrogen [ECL- 0162]^
0.75
mg /L
1
0.26
0.48
4614002
EPA 351.2
Analyzed
By Notes
02/17/14 10:36
CV
02/11/14 13:05
Clv
02/11/14 08:29
Clv
02/17/14 10:14
Cly
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4811004 - NO PREP
Blank (4B31004 -BLK3)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrite as N
0.017
U
0.10
I LCS (4B11004-BS1)
Level Result %REC Limits RPD
Limit
Notes
Analvte
Result
Flaq
POL
Nitrite as N
0.98
0.10
Matrix Spike (4B11004 -MS1)
Spike Source %REC
RPD
Source: C400187 -03
Level Result %REC Limits RPD
Limit
Notes
Analvte
Result
Flaq
POL
Nitrite as N
1.0
0.10
Matrix Spike Dup (4B13004 -MSD1)
Spike Source %REC
RPD
Source: C400187 -03
Level Result %REC Limits RPD
Limit
Notes
Analvte
Result
Flag
_P(LL
Nitrite as N
1.0
0.10
Batch 4B11OO6 - NO PREP
Spike Source %REC
RPD
Blank (4B31006 -BLKi)
Level Result %REC Limits RPD
Limit
Notes
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.041
U
0.10
I LCS (4B11006-BS1)
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
1.3
0.10
Matrix Spike (4B13006 -MS1)
Prepared: 02/11/2014 12:45 Analyzed: 02/11/2014 12:45
Source: C309972 -01RE3
Spike Source %REC
RPD
Analyte
Result
Flaa
P2
Nitrate /Nitrite as N
23
2.0
Matrix Spike Dup (4B11006 -MSD1)
Prepared: 02/11/2014 14:31 Analyzed: 02/11/2014 14:31
Source: C309972 -OIRE1
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
22
2.0
Batch 4B14OO2 - Same
Prepared: 02/11/2014 14:32 Analyzed: 02/11/2014 14:32
Blank (4B14002 -BLK3)
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
0.26
U
0.48
9 0 E (D
www.encolabs.com
Prepared: 02/14/2014 10:17 Analyzed: 02/17/2014 09:59
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit Notes
mg /L
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
Prepared: 02/11/2014 08:25 Analyzed: 02/11/2014 08:25
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
Prepared: 02/11/2014 08:20 Analyzed: 02/11/2014 08:20
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
1.00 98 90 -110
Prepared: 02/11/2014 08:27 Analyzed: 02/11/2014 08:27
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
1.00 0.017 U 102 90 -110
Prepared: 02/11/2014 08:28 Analyzed: 02/11/2014 08:28
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
1.00 0.017 U 105 90 -110 2
10
Prepared: 02/11/2014 12:48 Analyzed: 02/11/2014 12:48
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
Prepared: 02/11/2014 12:45 Analyzed: 02/11/2014 12:45
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
1.25 108 90 -110
Prepared: 02/11/2014 14:31 Analyzed: 02/11/2014 14:31
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
10.0 11 117 90 -110
QM -05
Prepared: 02/11/2014 14:32 Analyzed: 02/11/2014 14:32
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
Notes
mg /L
10.0 11 113 90 -110 2
10
QM -05
Prepared: 02/14/2014 10:17 Analyzed: 02/17/2014 09:59
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit Notes
mg /L
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4814002 - Same - Continued
LCS (41314002 -1351)
Analvte
Total Kjeldahl Nitrogen
Matrix Spike (4814002 -MS1)
Source: C400084 -03
Analvte
Total Kjeldahl Nitrogen
Matrix Spike Dup (4614002 -MSDS)
Source: C400084 -03
Analvte
Total Kjeldahl Nitrogen
QUALITY CONTROL DATA
Result Flag Q
12 0.48
Result Flaq POL
5.9 0.48
Result Flaq POL
6.2 0.48
9 0 E (D
www.encolabs.com
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 02/14/2014 10:17 Analyzed: 02/17/2014 10:01
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 98 90 -110
Prepared: 02/14/2014 10:17 Analyzed: 02/17/2014 10:05
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 1.3 96 90 -110
Prepared: 02/14/2014 10:17 Analyzed: 02/17/2014 10:08
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 1.3 103 90 -110 6
10
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
www.encolabs.com
I FLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
QM -05 The spike recovery was outside acceptance limits for the MS and /or MSD due to matrix
interference. The LCS and /or LCSD were within acceptance limits showing that the laboratory is
in control and the data is acceptable.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

(999CEG)) ENVIRONMENTAL CONSERVATION LABORATORIES CHAIN -OF- CUSTODY RECORD
10775 Central Port Dr. 4810 Executive Park Court, Suite 111 102 -A Woodwinds Industrial Cf.
Orlando, FL 32824 Jacksonville, FL 32216 -6069 , Cary, NC 27511
(407) 826 -5314 Fax [phone] (904) 296 -3007 Fax [phone] (919) 467 -3090 Fax [phone]
Client Name
Stantec Consulting_. Inc. (ST0181
Address
8011 Jones Franklin Road, Suite 300
City /ST /Zip
Raleigh, NC 276136
Tel I Fax
(0119) 851 -6866 () -
Sampler(s) Name, Affiliation (Print)
Client
Sampler(s) Signature
Project Number
Collection
17130011:5
Total # of
Project Name /Desc
Time
Town of Cary
Containers
PO # / Billing Info
N
-+
SW _
clJ
Reporting Contact
M
rarl �a irl�;
�
Billing Contact
ACCOunts Playable
Site Location / Time Zone
►J
Requested Analyses
LO
N CY)
C6 z
Lo
M F--
Z N
at
CO �
X
0
Preservation (See Codes) (Combir e as necessary)
www.encolabs.com
Page of
Requested Turnaround
Times
Note : Rush requests subject to
acceptance by the facility
Standard
Expedited
Due
Lab�Workorder "
C*`400 i f
Sample Comments
X -X
Do#nstream 2� J�� �y l : �S (�„ S4j't( 2 X X X
le Kit Prepared By D e/Time Rel' quished By 1
Comment /Special Reporting Requirements Rel1 quisT hed By�
y
Relinquished By
< Total # of Containers
Dat /T ie Receivr By
Date(Time t R',9Eeivgd By i7
DateMme k Zyed By
Cooler #'s & Temps on Receipt - I Conditio pon Receipt
Acceptable
o itrix : GW- Groundwater SO -Soil DW- Drinking Water SE- Sediment SW- Surface Water WW- Wastewater A -Air -Other (detail in comments) Preservation: 1 -Ice H -HCI N -HNO3 S -H2SO4 NO -NaOH O -Other (detail in comments)
Note : All samples submitted to ENCO Labs are in accordance with the terms and conditions listed on the reverse of this form, unless prior written agreements exist
Date/Time
Date/Time
Date(Time
Unacceptable
Collection
Matrix
Total # of
Item It Sample ID (Field Identification) Collection Date
Time
Comp /Grab (see codes)
Containers
I J0 I stha M y� LIT
-J. o D
-+
SW _
—' 2
Requested Analyses
LO
N CY)
C6 z
Lo
M F--
Z N
at
CO �
X
0
Preservation (See Codes) (Combir e as necessary)
www.encolabs.com
Page of
Requested Turnaround
Times
Note : Rush requests subject to
acceptance by the facility
Standard
Expedited
Due
Lab�Workorder "
C*`400 i f
Sample Comments
X -X
Do#nstream 2� J�� �y l : �S (�„ S4j't( 2 X X X
le Kit Prepared By D e/Time Rel' quished By 1
Comment /Special Reporting Requirements Rel1 quisT hed By�
y
Relinquished By
< Total # of Containers
Dat /T ie Receivr By
Date(Time t R',9Eeivgd By i7
DateMme k Zyed By
Cooler #'s & Temps on Receipt - I Conditio pon Receipt
Acceptable
o itrix : GW- Groundwater SO -Soil DW- Drinking Water SE- Sediment SW- Surface Water WW- Wastewater A -Air -Other (detail in comments) Preservation: 1 -Ice H -HCI N -HNO3 S -H2SO4 NO -NaOH O -Other (detail in comments)
Note : All samples submitted to ENCO Labs are in accordance with the terms and conditions listed on the reverse of this form, unless prior written agreements exist
Date/Time
Date/Time
Date(Time
Unacceptable

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
www,encolabs.com
SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C315256 -01
Sampled: 01/06/14 10:30 Received: 01/06/14 11:30
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
02/03/14
01/10/14
11:02
01/13/14 09:50
EPA 353.2
01/08/14 10:30
01/07/14
09:52
01/07/14 09:52
EPA 353.2
02/03/14
01/07/14
12:11
01/07/14 12:11
EPA 353.2
10/01/16
01/13/14
12:39
01/13/14 12:52
Client ID: Downstream
Lab ID: C315256 -02
Sampled: 01/06/14 11:20 Received: 01/06/14 11:30
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
02/03/14
01/10/14
11:02
01/13/14 09:52
EPA 353.2
01/08/14 11:20
01/07/14
09:54
01/07/14 09:54
EPA 353.2
02/03/14
01/07/14
12:22
01/07/14 12:22
EPA 353.2
10/01/16
01/13/14
12:39
01/13/14 12:52
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C315256 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.21
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.21
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.46
1
0.26
0.48
mg /L
EPA 351.2
Client ID: Downstream
Lab ID:
C315256 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.11
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.11
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.58
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

Description: Upstream
Matrix: Surface Water
Project: Town of Cary
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
ANALYTICAL RESULTS
Lab Sample ID:C315256 -01
Sampled: 01/06/14 10:30
Sampled By: Kristin Weidner
Analvte fCAS Numberl
Results
Flaa Units
DF MDL P L Batch
Nitrate as N [14797- 55 -8] A
0.21
mg /L
1 0.025 0.10 4A13031
Nitrate /Nitrite as N [ECL- 0030]A
0.21
mg /L
1 0.041 0.10 4AO7007
Nitrite as N [14797- 65 -0]A
0.017
U mg /L
1 0.017 0.10 4AO7004
Total Kjeldahl Nitrogen [ECL- 0162]A
0.46
J mg /L
1 0.26 0.48 4A10003
Description: Downstream
0.10
4AO7007
Lab Sample ID:C315256 -02
Matrix: Surface Water
0.017
u mg /L
Sampled: 01 /06/14 11:20
Project: Town of Cary
0.10
4AO7004
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
9 0 E (D
www.encolabs.com
Received: 01/06/14 11:30
Work Order: C315256
Method
Analyzed
I
By Notes
EPA 353.2
01/13/14 12:52
CV
EPA 353.2
01/07/14 12:11
clv
EPA 353.2
01/07/14 09:52
clv
EPA 351.2
01/13/14 09:50
AJB
EPA 353.2
Received: 01/06/14 11:30
0.11
Work Order: C315256
Analvte fCAS Numberl
Results
Flaa Units
DF
MDL
P L
Batch
Method
Nitrate as N [14797- 55 -8] A
0.11
mg /L
1
0.025
0.10
4A13031
EPA 353.2
Nitrate /Nitrite as N [ECL- 0030]A
0.11
mg /L
1
0.041
0.10
4AO7007
EPA 353.2
Nitrite as N [14797- 65 -0]A
0.017
u mg /L
1
0.017
0.10
4AO7004
EPA 353.2
Total Kjeldahl Nitrogen [ECL- 0162]A
0.58
mg /L
1
0.26
0.48
4A10003
EPA 351.2
Analyzed
By Notes
01/13/14 12:52
CV
01/07/14 12:22
clv
01/07/14 09:54
clv
01/13/14 09:52
AJB
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4A07004 - NO PREP
Blank (4A07004 -BLK3)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrite as N
0.017
U
0.10
I LCS (4A07004-BSI)
mg /L
Analvte
Result
Flaq
POL
Nitrite as N
0.98
Units
0.10
Matrix Spike (4A07004 -MS1)
mg /L
1.00 98 90 -110
Source: C315256 -03
Prepared: 01/07/2014 09:53 Analyzed: 01/07/2014 09:53
Analvte
Result
Flaq
POL
Nitrite as N
1.0
1.00 0.017 U 103 90 -110
0.10
Matrix Spike Dup (4A07004 -MSD1)
Prepared: 01/07/2014 09:54 Analyzed: 01/07/2014 09:54
Source: C315256 -01
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flag
_P(LL
Nitrite as N
1.0
0.10
Batch 4A07007 - NO PREP
RPD
Units
Level Result %REC Limits RPD
Blank (4A07007 -BLKI)
mg /L
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.041
U
0.10
I LCS (4A07007-BS1)
mg /L
1.25 106 90 -110
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
1.3
Units
0.10
Matrix Spike (4A07007 -MS1)
mg /L
0.513 0.21 102 90 -110
Source: C315256 -03
Prepared: 01/07/2014 12:15 Analyzed: 01/07/2014 12:15
Analyte
Result
Flan
P2
Nitrate /Nitrite as N
0.73
0.513 0.21 93 90 -110 7
0.10
Matrix Spike Dup (4A07007 -MSDi)
Source: C315256 -03
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.68
0.10
Batch 4A10003 - Same
Blank (4A10003 -BLK3)
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
0.26
U
0.48
9 0 E (D
www.encolabs.com
Prepared: 01/10/2014 11:02 Analyzed: 01/13/2014 09:39
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
M
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
Prepared: 01/07/2014 09:47 Analyzed: 01/07/2014 09:47
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 01/07/2014 09:46 Analyzed: 01/07/2014 09:46
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 98 90 -110
Prepared: 01/07/2014 09:53 Analyzed: 01/07/2014 09:53
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 103 90 -110
Prepared: 01/07/2014 09:54 Analyzed: 01/07/2014 09:54
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 103 90 -110 0.7
10
Prepared: 01/07/2014 12:09 Analyzed: 01/07/2014 12:09
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 01/07/2014 12:07 Analyzed: 01/07/2014 12:07
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.25 106 90 -110
Prepared: 01/07/2014 12:13 Analyzed: 01/07/2014 12:13
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.21 102 90 -110
Prepared: 01/07/2014 12:15 Analyzed: 01/07/2014 12:15
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.21 93 90 -110 7
10
Prepared: 01/10/2014 11:02 Analyzed: 01/13/2014 09:39
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
M
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4A10003 - Same - Continued
�LCS(4A10003 -BS1)
Analvte
Total Kjeldahl Nitrogen
Matrix Spike (4A10003 -MS1)
Source: C315769 -03
Analvte
Total Kjeldahl Nitrogen
Matrix Spike Dup (4A10003 -MSD1)
Source: C315769 -03
Analvte
Total Kjeldahl Nitrogen
QUALITY CONTROL DATA
Result Flag Q
13 0.48
Result Flaq POL
5.4 0.48
Result Flaq POL
5.0 0.48
9 0 E (B
www.encolabs.com
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 01/10/2014 11:02 Analyzed: 01/13/2014 09:41
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 107 90 -110
Prepared: 01/10/2014 11:02 Analyzed: 01/13/2014 09:46
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 0.66 100 90 -110
Prepared: 01/10/2014 11:02 Analyzed: 01/13/2014 09:48
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 0.66 90 90 -110 9
10
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
www.encolabs.com
FLAGS /NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

�ll��lN
Sample Chain of Custody Form
Acct#: ST018
Client Stantec Consulting, Inc. (ST018)
Contact Brad Fairly
Ship To: 801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
C315256 -01
C315256 -02
Upstream 51l
Prelog #: C315256
Project# /Reference: Town of Cary
Required TAT: 5
ENCO Contact: Link Thrower
102 -A Woodwinds Industrial Court
Cary, NC 27511
Raleigh, NC 27606
Anatyses/Contatiners ter :
I I •. IIII I I
Analyses: Nitrate as N 353.2 , Nitrate Calc 353.2 , Nitrite as N
353.2 , NOX 353.2 , TKN 351.2
Containers: 1 - 250mLP , 1 - 250mLP +H2SO4
Downstream "' I Analyses: Nitrate as N 353.2 Nitrate Calc 353.2 , Nitrite as N
353.2 , NOX 353.2 TKN 351.2
Containers: 1 - 250mLP , 1 - 250mLP +H2SO4
Sampled By: Temp: R /inquisiyed 13y: Date/Time:
Condition: ZA,,eptable _Unacceptable Rece yed By: f Date, Time:
Notes: . _ .._....... __ ,.._
Containers in this sample kit may contain chemical preservatives as required by the EPA procedures. Information concerning the materials can be found below. DO NOT rinse containers prior to
use!
When filling preserved containers, use caution not to inhale vapors that may be caused in the chemical reaction between the sample and the preservatives. Collect samples in a well - ventilated area
or take appropriate precautions to avoid exposure to these fumes. See cautions below pertaining to the handling of these maferials
It is the shipper's responsibility to ensure that the samples are packed in such a manner to prevent breakage and that any required temperature is maintained during transit until receipt at the
laboratory.
A temperature blank has been Included to measure the ambient temperature of the cooler upon receipt a the lab. Please do not remove this container from the cooler, but pack along with the
samples in a similar manner. This bottle contains deionized water only.
The information below are PRECAUTIONARY STATEMENTS ONLY! All potential hazards posed by these materials have not been addressed, For additional information or assistance, please
contact your organization's safety professional.
Cautions & Abbreviations
HCl . Hydrochloric Acid - STRONG ACID! Avoid skin and eye contact. If contact is made flush affected areas immediately with water.
HNO3:Nitric Acid - STRONG ACID! STRONG OXIDIZER! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
H31`04 : Phosphoric Acid - STRONG ACID! Avoid skin and eye contact. If contact is ,Wade, flush affected areas immediately with water.
H2SO4 : Sulfuric Acid - STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
Aso Acid . Ascorbic Acid - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
ZnAc Zinc Acetate - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
NaHSO4 Sodium Thiosulfate - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
i Sodium Hydroxide - STRONG CALISTIC! Avoid skin and eye contact- If, contact is made, flush affected areas immediately with water.
McOH : Methanol - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
Page 8 of 8

ENCO Laboratories
�eoR11�
Accurate. Timely. Responsive. Innovative.
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Thursday, May 15, 2014
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C401553
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Thursday, May 8, 2014.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

Client ID: Downstream Lab ID: C401553 -02 Sampled: 05/08/14 09:40 Received: 05/08/14 10:00
Parameter
Hold Date /Time(sl
Preo Date /Time(s)
Analvsis Date /Time(s)
9 0 E (D
06/05/14
05/09/14 10:11
05/12/14 09:36
EPA 353.2
www,encolabs.com
05/09/14 07:21
05/09/14 09:00
SAMPLE SUMMARY/ LABORATORY CHRONICLE
06/05/14
Client ID: Upstream
05/08/14 12:55
Lab ID: C401553 -01
Sampled: 05/08/14 08:54 Received: 05/08/14 10:00
Parameter
Hold Date /Time(sl Preo Date
/Time(s)
Analvsis Date/Time(s).
EPA 351.2
06/05/14
05/09/14
10:11
05/12/14 09:34
EPA 353.2
05/10/14
08:54 05/09/14
07:21
05/09/14 08:55
EPA 353.2
06/05/14
05/08/14
12:53
05/08/14 12:53
EPA 353.2
01131117
05/14/14
13:34
05/14/14 14:00
Client ID: Downstream Lab ID: C401553 -02 Sampled: 05/08/14 09:40 Received: 05/08/14 10:00
Parameter
Hold Date /Time(sl
Preo Date /Time(s)
Analvsis Date /Time(s)
EPA 351.2
06/05/14
05/09/14 10:11
05/12/14 09:36
EPA 353.2
05/10/14 09:40
05/09/14 07:21
05/09/14 09:00
EPA 353.2
06/05/14
05/08/14 12:55
05/08/14 12:55
EPA 353.2
01/31/17
05/14/14 13:34
05/14/14 14:00
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C401553 -01
Anal a
Results
Flaa MDL
POLL
Units
Method Notes
Nitrate as N
0.11
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.11
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.62
0.26
0.48
mg /L
EPA 351.2
Client ID: Downstream
Lab ID:
C401553 -02
Anal a
Results
Flaa MDL
POLL
Units
Method Notes
Nitrate as N
0.15
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.15
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.94
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

Description: Upstream
Matrix: Surface Water
Project: Town of Cary
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
ANALYTICAL RESULTS
Lab Sample ID:C401553 -01
Sampled: 05 /08/14 08:54
Sampled By: Kristin Weidner
Analvte fCAS Numberl
Results
Flaa Units
DF MDL P L Batch
Nitrate as N [14797- 55 -8] A
0.11
mg /L
1 0.025 0.10 4E14039
Nitrate /Nitrite as N [ECL- 0030]A
0.11
mg /L
1 0.041 0.10 4EO8003
Nitrite as N [14797- 65 -0]A
0.017
U mg /L
1 0.017 0.10 4EO9002
Total Kjeldahl Nitrogen [ECL- 0162]A
0.62
mg /L
1 0.26 0.48 4EO9003
Description: Downstream
0.10
4EO8003
Lab Sample ID:C401553 -02
Matrix: Surface Water
0.017
u mg /L
Sampled: 05 /08/14 09:40
Project: Town of Cary
0.10
4EO9002
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
9 0 E (D
www.encolabs.com
Received: 05/08/14 10:00
Work Order: C401553
Method
I
Analyzed By Notes
EPA
353.2
05/14/14 14:00 CV
EPA
353.2
05/08/14 12:53 Clv
EPA
353.2
05/09/14 08:55 Clv
EPA
351.2
05/12/14 09:34 Clv
4E14039
EPA 353.2
Received: 05/08/14 10:00
0.15
mg /L
Work Order: C401553
Analvte fCAS Numberl
Results
Flaa Units
DF
MDL
P L
Batch
Method
Nitrate as N [14797- 55 -8] A
0.15
mg /L
1
0.025
0.10
4E14039
EPA 353.2
Nitrate /Nitrite as N [ECL- 0030]A
0.15
mg /L
1
0.041
0.10
4EO8003
EPA 353.2
Nitrite as N [14797- 65 -0]A
0.017
u mg /L
1
0.017
0.10
4EO9002
EPA 353.2
Total Kjeldahl Nitrogen [ECL- 0162]A
0.94
mg /L
1
0.26
0.48
4EO9003
EPA 351.2
Analyzed
By Notes
05/14/14 14:00
CV
05/08/14 12:55
Clv
05/09/14 09:00
Clv
05/12/14 09:36
Cly
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4E08003 - NO PREP
Blank (4E08003 -BLK3)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrate /Nitrite as N
0.041
U
0.10
ILCS(4E08003 -BSI)
mg /L
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
1.3
Units
0.10
Matrix Spike (4E08003 -MS1)
mg /L
1.25 102 90 -110
Source: C404517 -03
Prepared: 05/08/2014 12:49 Analyzed: 05/08/2014 12:49
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.26
0.513 0.14 23 90 -110
0.10
Matrix Spike Dup (4E08003 -MSD1)
Prepared: 05/08/2014 12:51 Analyzed: 05/08/2014 12:51
Source: C404517 -01
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flag
_P(LL
Nitrate /Nitrite as N
0.30
0.10
Batch 4E09002 - NO PREP
RPD
Units
Level Result %REC Limits RPD
Blank (4E09002 -BLKI)
mg /L
Analvte
Result
Flaq
POL
Nitrite as N
0.017
U
0.10
ILCS(4E09002 -BSS)
mg /L
1.00 98 90 -110
Analvte
Result
Flaq
POL
Nitrite as N
0.98
Units
0.10
ILCS(4E09002 -BS2)
mg /L
1.00 97 90 -110
Analvte
Result
Flaq
POL
Nitrite as N
0.97
Units
0.10
Matrix Spike (4E09002 -MS1)
mg /L
1.00 0.017 U 96 90 -110
Source: C401553 -01
Prepared: 05/09/2014 07:21 Analyzed: 05/09/2014 08:58
Analvte
Result
Flaq
POL
Nitrite as N
0.96
1.00 0.017 U 99 90 -110 3
0.10
Matrix Spike Dup (4E09002 -MSD1)
Source: C401553 -01
Analvte
Result
Flaq
POL
Nitrite as N
0.99
0.10
Batch 4E09003 - Same
E 0 E (D
www.encolabs.com
Notes
I
Notes
I
Notes
QM -05
M
Notes
QM -05,
QM -11
Notes
I
Notes
I
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
Prepared: 05/08/2014 12:44 Analyzed: 05/08/2014 12:44
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 05/08/2014 12:42 Analyzed: 05/08/2014 12:42
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.25 102 90 -110
Prepared: 05/08/2014 12:49 Analyzed: 05/08/2014 12:49
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.14 23 90 -110
Prepared: 05/08/2014 12:51 Analyzed: 05/08/2014 12:51
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.14 33 90 -110 17
10
Prepared: 05/09/2014 07:21 Analyzed: 05/09/2014 08:54
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 05/09/2014 07:21 Analyzed: 05/09/2014 08:19
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 98 90 -110
Prepared: 05/09/2014 07:21 Analyzed: 05/09/2014 08:59
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 97 90 -110
Prepared: 05/09/2014 07:21 Analyzed: 05/09/2014 08:56
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 96 90 -110
Prepared: 05/09/2014 07:21 Analyzed: 05/09/2014 08:58
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 99 90 -110 3
10
Notes
I
Notes
I
Notes
QM -05
M
Notes
QM -05,
QM -11
Notes
I
Notes
I
Notes
I
Notes
I
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4EO9003 - Same - Continued
Blank (4E09003 -BLK3)
Analvte
Total Kjeldahl Nitrogen
ILCS(4E09003 -BSI)
Analvte
Total Kjeldahl Nitrogen
Matrix Spike (4E09003 -MS1)
Source: C403749 -02
Analvte
Total Kjeldahl Nitrogen
I Matrix Spike Dup (4E09003 -MSD1)
Source: C403749 -02
Analvte
Total Kjeldahl Nitrogen
QUALITY CONTROL DATA
Result Flag Q
0.26 Ll 0.48
Result Flaq POL
12 0.48
Result Flaq POL
11 0.48
Result Flag Pall-
10 0.48
9 0 E (D
www.encolabs.com
7
Notes
I
Notes
I
Notes
M
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 05/09/2014 10:11 Analyzed: 05/12/2014 09:23
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 05/09/2014 10:11 Analyzed: 05/12/2014 09:25
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 102 90 -110
Prepared: 05/09/2014 10:11 Analyzed: 05/12/2014 09:30
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 5.8 102 90 -110
Prepared: 05/09/2014 10:11 Analyzed: 05/12/2014 09:32
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 5.8 93 90 -110 4
10
7
Notes
I
Notes
I
Notes
M
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
www.encolabs.com
I FLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification ".
QM -05 The spike recovery was outside acceptance limits for the MS and /or MSD due to matrix
interference. The LCS and /or LCSD were within acceptance limits showing that the laboratory is
in control and the data is acceptable.
QM -11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

® ENVIRONMENTAL CONSERVATION LABORATORIES CHAIN -OF- CUSTODY RECORD
® 10775 Central Port Dr. 4810 Executive Park Court, Suite 111 102 -A Woodwinds Industrial Ct,
Orlando, FL 32824 Jacksonville, FL 32216 -6069 Cary, NC 27511
(407) 826 -5314 Fax[phone] (904) 296 -3007 Fax[phone] (919) 467 -3090 Fax [phone]
Client Name -
Startec Consuitinq, Inc. (ST01$1
Address
801 ,!ones Franklin Road, Suite 300
City /ST /Zip
Raleigh, NC 27606
Tel I Fax
(919) 851 -13866
Sampler(s) Name, Affiliation (Print)
Client
Project Number
171300/15
Project Name /Desc
Town of Cary
PO # / Billing Info
Reporting Contact
Kristin Weidner
Billing Contact
Accounts Payable
Sampler(s) Signature
Site Location / Time Zone
Note: Rush requests subject to
DatelTime Relif gquished By
Date/Time Received B .""
r°
UJ
acceptance by the facility
N
Comments /Special Reporting Requirements Relinquished By
Collection
bate/ Time
Matrix
Item # Sample ID (Field Identification)
Collection Date
Time
Comp / Grab
(see codes)
1 U lo, stre =tn°
131
SAN
Downsirearn
6_1,%17,o;4
.
I
cm
S1N
www.encolabs.com
Page of
Requested Analyses Requested Turnaround
Times
'
-
< Total # of Containers
Note: Rush requests subject to
DatelTime Relif gquished By
Date/Time Received B .""
r°
UJ
acceptance by the facility
N
Comments /Special Reporting Requirements Relinquished By
Date/Time Received By
bate/ Time
Standard
Cn
I
z:
N
Expedited
r.7;
Due
Lab Workorder
C401553
Preservation (See Codes) (Combine as necessary)
Total # of
Containers
Sample Comments
2
— X
X
X
2
X
X
X
-
< Total # of Containers
Sample Kit Prepared By
DatelTime Relif gquished By
Date/Time Received B .""
Datelrime ,r
Comments /Special Reporting Requirements Relinquished By
Date/Time Received By
bate/ Time
Relinquished By
Date/Time - Received By
Cooler #'s & Temps on Receipt �^ L. Cond7zptable eceipt
o itrix : GW- Groundwater SO -Soil DW- Drinking Water SE- Sediment SW- Surface Water WW- Wastewater A -Air O -Other (detail in comments) Preservation: Fice H -HCI N -HNO3 S -H2SO4 NO -NaOH O -Other (detail in comments)
Note : All samples submitted to ENCO Labs are in accordance with the terms and conditions listed on the reverse of this form, unless prior written agreements exist
Date/Time
Unacceptable

ENCO Laboratories
�eoR11�
Accurate. Timely. Responsive. Innovative.
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Wednesday, July 23, 2014
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C405688
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Wednesday, July 16, 2014.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
www,encolabs.com
SAMPLE
SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C405688 -01 Sampled: 07/16/14
09:20
Received: 07/16/14 11:38
Parameter
Hold Date /Time(sl
Preo Date /Time(s)
Analvsis
Date /Time(s)
EPA 351.2
08/13/14
07/17/14 10:34
07/21/14
09:13
EPA 353.2
07/18/14 09:20
07/16/14 13:24
07/16/14
17:00
EPA 353.2
08/13/14
07/18/14 10:44
07/18/14
16:36
EPA 353.2
04110117
07/21/14 12:19
07/21/14
12:39
Client ID: Downstream
Lab ID: C405688 -02 Sampled: 07/16/14
10:40
Received: 07/16/14 11:38
Parameter
Hold Date /Time(sl
Preo Date /Time(s)
Analvsis
Date /Time(s)
EPA 351.2
08/13/14
07/17/14 10:34
07/21/14
09:15
EPA 353.2
07/18/14 10:40
07/16/14 13:24
07/16/14
17:04
EPA 353.2
08/13/14
07/18/14 10:44
07/18/14
16:47
EPA 353.2
04/10/17
07/21/14 12:19
07/21/14
12:39
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C405688 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.13
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.13
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
1.0
0.26
0.48
mg /L
EPA 351.2
Client ID: Downstream
Lab ID:
C405688 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrite as N
0.019
1
0.017
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.68
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

Description: Upstream
Matrix: Surface Water
Project: Town of Cary
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
ANALYTICAL RESULTS
Lab Sample ID:C405688 -01
Sampled: 07 /16/14 09:20
Sampled By:Alex Baldwin
Analvte fCAS Numberl
Results
Flaa Units
DF MDL P L Batch
Nitrate as N [14797- 55 -8]^
0.13
mg /L
1 0.025 0.10 4G21018
Nitrate /Nitrite as N [ECL- 0010]^
0.13
mg /L
1 0.041 0.10 4G18017
Nitrite as N [14797- 65 -0]^
0.017
U mg /L
1 0.017 0.10 4G16036
Total Kjeldahl Nitrogen [ECL- 0162]^
1.0
mg /L
1 0.26 0.48 4G17005
Description: Downstream
mg /L
1
Lab Sample ID:C405688 -02
Matrix: Surface Water
4G18017
EPA 353.2
Sampled: 07 /16/14 10:40
Project: Town of Cary
J
mg /L
Sampled By:Alex Baldwin
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
9 0 E (D
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Received: 07/16/14 11:38
Work Order: C405688
Method
Analyzed
I
By Notes
EPA 353.2
07/21/14 12:39
CV
EPA 353.2
07/18/14 16:36
c1v
EPA 353.2
07/16/14 17:00
AJB
EPA 351.2
07/21/14 09:13
C1V
0.10
Received: 07/16/14 11:38
EPA 353.2
Work Order: C405688
Analvte fCAS Numberl
Results
Flaa
Units
DF
MDL
P L
Batch
Method
Nitrate as N [14797- 55 -8]^
0.025
u
mg /L
1
0.025
0.10
4G21018
EPA 353.2
Nitrate /Nitrite as N [ECL- 0010]^
0.041
U
mg /L
1
0.041
0.10
4G18017
EPA 353.2
Nitrite as N [14797- 65 -0]^
0.019
J
mg /L
1
0.017
0.10
4G16036
EPA 353.2
Total Kjeldahl Nitrogen [ECL- 0162]^
0.68
mg /L
1
0.26
0.48
4G17005
EPA 351.2
Analyzed
By Notes
07/21/14 12:39
CV
07/18/14 16:47
clv
07/16/14 17:04
AJB
07/21/14 09:15
C1V
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4G16036 - NO PREP
Blank (4G16036 -BLK3)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrite as N
0.017
U
0.10
ILCS(4G16036 -BSI)
mg /L
Analvte
Result
Flaq
POL
Nitrite as N
0.96
Units
0.10
Matrix Spike (4G16036 -MS1)
mg /L
1.00 96 90 -110
Source: C405688 -03
Prepared: 07/16/2014 13:24 Analyzed: 07/16/2014 17:01
Analvte
Result
Flaq
POL
Nitrite as N
0.93
1.00 0.017 U 93 90 -110
0.10
Matrix Spike Dup (4G36036 -MSD3)
Prepared: 07/16/2014 13:24 Analyzed: 07/16/2014 17:03
Source: C405688 -01
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flag
_P(LL
Nitrite as N
0.94
0.10
Batch 4G17005 - Same
RPD
Units
Level Result %REC Limits RPD
Blank (4G17005 -BLK3)
mg /L
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
0.26
U
0.48
ILCS(4G17005 -BS1)
mg /L
12.0 104 90 -110
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
12
Units
0.48
Matrix Spike (4G17005 -MS1)
mg /L
4.79 0.58 107 90 -110
Source: C406835 -03
Prepared: 07/17/2014 10:34 Analyzed: 07/21/2014 09:10
Analvte
Result
Flan
POL
Total Kjeldahl Nitrogen
5.7
4.79 0.58 104 90 -110 3
0.48
Matrix Spike Dup (4G17005 -MSD1)
Source: C406835 -03
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
5.6
0.48
Batch 4G18017 - NO PREP
Blank (4G18017 -BLK1)
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.041
U
0.10
9 0 E (D
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Prepared: 07/18/2014 10:44 Analyzed: 07/18/2014 16:34
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
M
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
Prepared: 07/16/2014 13:24 Analyzed: 07/16/2014 16:59
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 07/16/2014 13:24 Analyzed: 07/16/2014 16:58
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 96 90 -110
Prepared: 07/16/2014 13:24 Analyzed: 07/16/2014 17:01
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 93 90 -110
Prepared: 07/16/2014 13:24 Analyzed: 07/16/2014 17:03
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 94 90 -110 0.9
10
Prepared: 07/17/2014 10:34 Analyzed: 07/21/2014 09:01
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 07/17/2014 10:34 Analyzed: 07/21/2014 09:04
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 104 90 -110
Prepared: 07/17/2014 10:34 Analyzed: 07/21/2014 09:08
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 0.58 107 90 -110
Prepared: 07/17/2014 10:34 Analyzed: 07/21/2014 09:10
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 0.58 104 90 -110 3
10
Prepared: 07/18/2014 10:44 Analyzed: 07/18/2014 16:34
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
M
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4618017 - NO PREP - Continued
�LCS(4G18017 -HSIL)
QUALITY CONTROL DATA M
Analvte
Result Flaci
Q
Nitrate /Nitrite as N
1.3
0.10
Matrix Spike (4G18017 -MS1)
Level Result %REC Limits RPD
Limit Notes
Source: C405688 -03
1.25 102 90 -110
Analvte
Result Flaq
POL
Nitrate /Nitrite as N
0.64
0.10
Matrix Spike Dup (4G18017 -MSD3)
Level Result %REC Limits RPD
Limit Notes
Source: C405688 -03
0.513 0.13 98 90 -110
Analvte
Result Flaq
POL
Nitrate /Nitrite as N
0.62
0.10
9 0 E (D
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FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 07/18/2014 10:44 Analyzed: 07/18/2014 16:32
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit Notes
mg /L
1.25 102 90 -110
Prepared: 07/18/2014 10:44 Analyzed: 07/18/2014 16:39
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit Notes
mg /L
0.513 0.13 98 90 -110
Prepared: 07/18/2014 10:44 Analyzed: 07/18/2014 16:41
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit Notes
mg /L
0.513 0.13 96 90 -110 2
10
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
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FLAGS /NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification ".
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

< Total # of Containers f/ j
Sample Kit Prepared By _ DatefTime Relinquished �Ily / Date,Time Received By Date�Tirgr0 I� °d�� Comments %Special Reporting Requirements Re cnqul ne Date/Ti a Recalved Date`fime
Relinquished By DatelTime Received By Date/Time
Cooler #'s 8 Temps on Receipt Condition Upon Receipt
Acceptable Unacceptable
° latrix : CW- Groundwater SO -Sail UW- Drinking Water SE- Sediment SW- Surface Water WIN Wastewater A -Air O -Other (detail in comments) Preservation: 1 -Ice H-HCI N -HNO3 S -H2SC4 NO -Na0H O -Other ( detai Comments)
b
.
Note: All samples submitted to ENCC Labs are in accordance with the terms and conditions listed an the reverse of this form, unless prior written agreements exist
ENVIRONMENTAL CONSERVATION LABORATORIES
CHAIN -OF- CUSTODY RECORD
www.encolabs.com
10775 Central Port Dr 4810 Executive Park Court. Suite 111
102 -A Woodwinds Industrial CL
(OrlancID, FL 32824 Jacksonville, FL 32216 -6069
Cary. NC 27511
(407) 826 -5314 Fax [phone] (904) 296 -3007 Fax [phone]
{919) 467 -3090 Fax [phone]
Page of
Client Name
Project Number
Requested Analyses
Requested Turnaround
Star-Ii ConFuOh-1 }jnc. (S)T01 FQ 171300-115
Times
Address
Project NamelDesc
(�
Note -. Rush requests subject to
H1 Jcrnws Ffankl(n Road,
Suite 300 Town of Cary
�
u'l
acceptance by he taclity
CitylSTIZip
PO it 1 Billing Info
M
RaIF i.I N+ 2'61.)6
�"'
Irl
Standard
Tel Fax
Reporting Contact
[+;r
Lr}
Y
1; 11 7) f3Fr1 -6f?6b ,) -
Kristirl Weidner
Z
cv
Expedited
Sampler(s) Name, Affiliation (Print)
Billing Contact
�}
III
1ielit °5 --� C
� V AuG0LlntS Payable -
a,
a
r�-a
Due
Sampler(s) Signature
Site Location 1 Time Zane
L;
Lab Vlrorkorder
Z,
z
z
405688
_
Preservation (See Code:) (Combir e as necessary)
Collection 'Matrix Total 0 of
Item # Sample ID (Field Identification)
Collection Comp ! Grab (see codes) Containers
Sample Comments
�Dca�te pTime. ,�(�
�Ir%1, --1P*' ^�
3 Jpgtvaarr
f f ,N 9
x
X
x
v:,/
Ti (I> '
X
Dow- astrearn
SW 2
f
X
X
< Total # of Containers f/ j
Sample Kit Prepared By _ DatefTime Relinquished �Ily / Date,Time Received By Date�Tirgr0 I� °d�� Comments %Special Reporting Requirements Re cnqul ne Date/Ti a Recalved Date`fime
Relinquished By DatelTime Received By Date/Time
Cooler #'s 8 Temps on Receipt Condition Upon Receipt
Acceptable Unacceptable
° latrix : CW- Groundwater SO -Sail UW- Drinking Water SE- Sediment SW- Surface Water WIN Wastewater A -Air O -Other (detail in comments) Preservation: 1 -Ice H-HCI N -HNO3 S -H2SC4 NO -Na0H O -Other ( detai Comments)
b
.
Note: All samples submitted to ENCC Labs are in accordance with the terms and conditions listed an the reverse of this form, unless prior written agreements exist

ENCO Laboratories
�eoR11�
Accurate. Timely. Responsive. Innovative.
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, December 9, 2014
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C409032
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Wednesday, November 26, 2014.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C409032 -01
Sampled: 11/26/14 09:15 Received: 11/26/14 10:15
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date/Time(s).
EPA 351.2
12/24/14
12/05/14
11:13
12/08/14 10:34
EPA 353.2
11/28/14 09:15
11/26/14
13:32
11/26/14 15:14
EPA 353.2
12/24/14
12/02/14
07:59
12/02/14 13:03
EPA 353.2
08/21/17
12/02/14
16:26
12/03/14 10:21
Client ID: Downstream
Lab ID: C409032 -02
Sampled: 11/26/14 10:00 Received: 11/26/14 10:15
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
12/24/14
12/05/14
11:13
12/08/14 10:37
EPA 353.2
11/28/14 10:00
11/26/14
13:32
11/26/14 15:17
EPA 353.2
12/24/14
12/02/14
07:59
12/02/14 13:09
EPA 353.2
08121117
12/02/14
16:26
12/03/14 10:21
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
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SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C409032 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.25
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.25
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.64
0.26
0.48
mg /L
EPA 351.2
Client ID: Downstream
Lab ID:
C409032 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.23
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.25
0.041
0.10
mg /L
EPA 353.2
Nitrite as N
0.017
1
0.017
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
1.1
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

Description: Upstream
Matrix: Surface Water
Project: Town of Cary
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
ANALYTICAL RESULTS
Lab Sample ID:C409032 -01
Sampled: 11 /26/14 09:15
Sampled By: Kristin Weidner
Analvte fCAS Numberl
Results
Flaa Units
DF MDL P L Batch
Nitrate as N [14797- 55 -8] A
0.25
mg /L
1 0.025 0.10 4LO2042
Nitrate/ Nitrite as NA
0.25
mg /L
1 0.041 0.10 4LO2004
Nitrite as N [14797- 65 -0]A
0.017
U mg /L
1 0.017 0.10 4K26023
Total Kjeldahl NitrogenA
0.64
mg /L
1 0.26 0.48 4LO5007
Description: Downstream
0.10
4LO2004
Lab Sample ID:C409032 -02
Matrix: Surface Water
0.017
J mg /L
Sampled: 11 /26/14 10:00
Project: Town of Cary
0.10
4K26023
Sampled By: Kristin Weidner
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
9 0 E (D
www.encolabs.com
Received: 11/26/14 10:15
Work Order: C409032
Method
Analyzed
I
By Notes
EPA 353.2
12/03/14 10:21
AJB
EPA 353.2
12/02/14 13:03
AJB
EPA 353.2
11/26/14 15:14
AJB
EPA 351.2
12/08/14 10:34
SHA
EPA 353.2
Received: 11/26/14 10:15
0.25
Work Order: C409032
Analvte fCAS Numberl
Results
Flaa Units
DF
MDL
P L
Batch
Method
Nitrate as N [14797- 55 -8] A
0.23
mg /L
1
0.025
0.10
4LO2042
EPA 353.2
Nitrate/ Nitrite as NA
0.25
mg /L
1
0.041
0.10
4LO2004
EPA 353.2
Nitrite as N [14797- 65 -0] A
0.017
J mg /L
1
0.017
0.10
4K26023
EPA 353.2
Total Kjeldahl NitrogenA
1.1
mg /L
1
0.26
0.48
4LO5007
EPA 351.2
Analyzed
By Notes
12/03/14 10:21
AJB
12/02/14 13:09
AJB
11/26/14 15:17
AJB
12/08/14 10:37
SHA
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4K26023 - NO PREP
Blank (4K26023 -BLK1)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrite as N
0.017
U
0.10
I LCS (4K26023-BS1)
mg /L
Analvte
Result
Flaq
POL
Nitrite as N
0.98
Units
0.10
Matrix Spike (4K26023 -MS1)
mg /L
1.00 98 90 -110
Source: C409032 -03
Prepared: 11/26/2014 13:32 Analyzed: 11/26/2014 15:15
Analvte
Result
Flaq
POL
Nitrite as N
1.0
1.00 0.017 U 102 90 -110
0.10
Matrix Spike Dup (4K26023 -MSD3)
Prepared: 11/26/2014 13:32 Analyzed: 11/26/2014 15:16
Source: C409032 -01
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flaq
P_QL
Nitrite as N
1.1
0.10
Batch 4LO2004 - NO PREP
RPD
Units
Level Result %REC Limits RPD
Blank (411-02004 -BLK3)
mg /L
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.041
U
0.10
ILCS(4L02004 -BS1)
mg /L
1.25 99 90 -110
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
1.2
Units
0.10
Matrix Spike (4L02004 -MS1)
mg /L
0.513 0.25 106 90 -110
Source: C409032 -01
Prepared: 12/02/2014 07:59 Analyzed: 12/02/2014 13:07
Analvte
Result
Flag
P2
Nitrate /Nitrite as N
0.80
0.513 0.25 109 90 -110 1
0.10
Matrix Spike Dup (4L02004 -MSD1)
Source: C409032 -01
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.81
0.10
Batch 4LO5007 - Same
Blank (4LOS007 -BLK1)
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
0.26
U
0.48
9 0 E (D
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Prepared: 12/05/2014 11:13 Analyzed: 12/08/2014 10:21
Spike Source %REC RPD
Units Level Result o /aREC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
I
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
Prepared: 11/26/2014 13:32 Analyzed: 11/26/2014 15:13
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 11/26/2014 13:32 Analyzed: 11/26/2014 15:06
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 98 90 -110
Prepared: 11/26/2014 13:32 Analyzed: 11/26/2014 15:15
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 102 90 -110
Prepared: 11/26/2014 13:32 Analyzed: 11/26/2014 15:16
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 105 90 -110 3
10
Prepared: 12/02/2014 07:59 Analyzed: 12/02/2014 12:58
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 12/02/2014 07:59 Analyzed: 12/02/2014 13:01
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.25 99 90 -110
Prepared: 12/02/2014 07:59 Analyzed: 12/02/2014 13:05
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.25 106 90 -110
Prepared: 12/02/2014 07:59 Analyzed: 12/02/2014 13:07
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.25 109 90 -110 1
10
Prepared: 12/05/2014 11:13 Analyzed: 12/08/2014 10:21
Spike Source %REC RPD
Units Level Result o /aREC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
I
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4LO5OO7 - Same - Continued
LCS (411-05007 -1351)
Analvte
Total Kjeldahl Nitrogen
Matrix Spike (411-05007 -MS1)
Source: C413766 -OIRE1
Analvte
Total Kjeldahl Nitrogen
Matrix Spike Dup (4L05007 -MSD1)
Source: C413766 -01RE1
Analvte
Total Kjeldahl Nitrogen
QUALITY CONTROL DATA
Result Flaq Q
12 0.48
Result Flaq POL
49 D 2.4
Result Flaq POL
57 D 2.4
9 0 E (D
www.encolabs.com
Notes
I
Notes
QM -16
M
Notes
QM -16
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 12/05/2014 11:13 Analyzed: 12/08/2014 10:23
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 102 90 -110
Prepared: 12/05/2014 11:13 Analyzed: 12/08/2014 14:26
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 51 NR 90 -110
Prepared: 12/05/2014 11:13 Analyzed: 12/08/2014 14:28
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 51 124 90 -110 14
10
Notes
I
Notes
QM -16
M
Notes
QM -16
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
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I FLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification ".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
QM -16 Matrix spike recovery could not be calculated due to high concentrations of analyte in source
sample.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

i
ENVIRONMENTAL CONSERVATION LABORATORIES
CHAIN -OF- CUSTODY RECORD
www.encolabs.com
XT75 Central Fort D, 4"610 EK2cutiNe Park Court, Sure 111
102 -A Woodwinds Indnslria? Cr-
DaterTirne
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Received Ry
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Cary, NC 27_i 11
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Suite 340 Town of Cary
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Item 9 Sample f4 (Field Identification)
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ENCO Laboratories
�eoR11�
Accurate. Timely. Responsive. Innovative.
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, December 23, 2014
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C412230
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, December 16, 2014.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
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SAMPLE
SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C412230 -01 Sampled: 12/16/14
13:19
Received: 12/16/14 14:17
Parameter
Hold Date /Time(sl
Preo Date /Time(s)
Analvsis
Date /Time(s)
EPA 351.2
01/13/15
12/19/14 10:52
12/22/14
12:03
EPA 353.2
12/18/14 13:19
12/17/14 15:40
12/17/14
15:40
EPA 353.2
01/13/15
12/18/14 11:31
12/18/14
11:31
EPA 353.2
09/10/17
12/22/14 13:36
12/22/14
13:47
Client ID: Downstream
Lab ID: C412230 -02 Sampled: 12/16/14
13:57
Received: 12/16/14 14:17
Parameter
Hold Date /Time(sl
Preo Date /Time(s)
Analvsis
Date /Time(s)
EPA 351.2
01/13/15
12/19/14 10:52
12/22/14
12:05
EPA 353.2
12/18/14 13:57
12/17/14 15:46
12/17/14
15:46
EPA 353.2
01/13/15
12/18/14 11:33
12/18/14
11:33
EPA 353.2
09/10/17
12/22/14 13:36
12/22/14
13:47
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
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SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C412230 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.23
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.23
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
1.0
0.26
0.48
mg /L
EPA 351.2
Client ID: Downstream
Lab ID:
C412230 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.21
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.23
0.041
0.10
mg /L
EPA 353.2
Nitrite as N
0.017
1
0.017
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
1.1
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

Description: Upstream
Matrix: Surface Water
Project: Town of Cary
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
ANALYTICAL RESULTS
Lab Sample ID:C412230 -01
Sampled: 12 /16/14 13:19
Sampled By: Client
Analvte fCAS Numberl
Results
Flaa Units
DF MDL P L
Batch
Nitrate as N [14797- 55 -8] A
0.23
mg /L
1 0.025 0.10
41-22030
Nitrate/ Nitrite as NA
0.23
mg /L
1 0.041 0.10
41-18005
Nitrite as N [14797- 65 -0]A
0.017
U mg /L
1 0.017 0.10
4L17032
Total Kjeldahl NitrogenA
1.0
mg /L
1 0.26 0.48
41-19001
Description: Downstream
J mg /L
1
Lab Sample ID:C412230 -02
0.10
Matrix: Surface Water
EPA 353.2
Total Kjeldahl NitrogenA
Sampled: 12 /16/14 13:57
mg /L
Project: Town of Cary
0.26
0.48
Sampled By: Client
EPA 351.2
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
9 0 E (D
www.encolabs.com
Received: 12/16/14 14:17
Work Order: C412230
Method
Analyzed
I
By Notes
EPA 353.2
12/22/14 13:47
AJB
EPA 353.2
12/18/14 11:31
AJB
EPA 353.2
12/17/14 15:40
SHA
EPA 351.2
12/22/14 12:03
SHA
EPA 353.2
Received: 12/16/14 14:17
0.23
Work Order: C412230
1
Analvte fCAS Numberl
Results
Flaa Units
DF
MDL
P L
Batch
Method
Nitrate as N [14797- 55 -8] A
0.21
mg /L
1
0.025
0.10
41-22030
EPA 353.2
Nitrate/ Nitrite as NA
0.23
mg /L
1
0.041
0.10
4L18005
EPA 353.2
Nitrite as N [14797- 65 -0] A
0.017
J mg /L
1
0.017
0.10
41-17032
EPA 353.2
Total Kjeldahl NitrogenA
1.1
mg /L
1
0.26
0.48
41-19001
EPA 351.2
Analyzed
By Notes
12/22/14 13:47
AJB
12/18/14 11:33
AJB
12/17/14 15:46
SHA
12/22/14 12:05
SHA
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 4L17032 - NO PREP
Blank (411-37032 -BLKl)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrite as N
0.017
U
0.10
ILCS(4L17032 -BSS)
mg /L
Analvte
Result
Flaq
POL
Nitrite as N
1.0
Units
0.10
Matrix Spike (4L17032 -MS3)
mg /L
1.00 103 90 -110
Source: C412230 -01
Prepared: 12/17/2014 15:41 Analyzed: 12/17/2014 15:41
Analvte
Result
Flaq
POL
Nitrite as N
1.0
1.00 0.017 U 102 90 -110
0.10
Matrix Spike Dup (4L37032 -MSD1)
Prepared: 12/17/2014 15:42 Analyzed: 12/17/2014 15:42
Source: C412230 -01
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flaq
P_QL
Nitrite as N
1.0
0.10
Batch 4LIB005 - NO PREP
RPD
Units
Level Result %REC Limits RPD
Blank (411-38005 -BLK1)
mg /L
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.041
U
0.10
ILCS(4L18005 -BSI)
mg /L
1.25 101 90 -110
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
1.3
Units
0.10
Matrix Spike (411-18005 -11VISl)
mg /L
0.513 0.53 96 90 -110
Source: C414995 -01
Prepared: 12/18/2014 11:20 Analyzed: 12/18/2014 11:20
Analvte
Result
Flan
PQL
Nitrate /Nitrite as N
1.0
0.513 0.53 92 90 -110 2
0.10
Matrix Spike Dup (4L18005 -MSD1)
Source: C414995 -01
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
1.0
0.10
Batch 4LI9001 - Same
Blank (4L19001 -BLKl)
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
0.26
U
0.48
9 0 E (D
www.encolabs.com
Prepared: 12/19/2014 10:52 Analyzed: 12/22/2014 11:50
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
I
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
Prepared & Analyzed: 12/17/2014 15:39
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 12/17/2014 15:27 Analyzed: 12/17/2014 15:27
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 103 90 -110
Prepared: 12/17/2014 15:41 Analyzed: 12/17/2014 15:41
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 102 90 -110
Prepared: 12/17/2014 15:42 Analyzed: 12/17/2014 15:42
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 100 90 -110 2
10
Prepared: 12/18/2014 11:13 Analyzed: 12/18/2014 11:13
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 12/18/2014 11:11 Analyzed: 12/18/2014 11:11
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.25 101 90 -110
Prepared: 12/18/2014 11:18 Analyzed: 12/18/2014 11:18
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.53 96 90 -110
Prepared: 12/18/2014 11:20 Analyzed: 12/18/2014 11:20
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.53 92 90 -110 2
10
Prepared: 12/19/2014 10:52 Analyzed: 12/22/2014 11:50
Spike Source %REC RPD
Units Level Result %REC Limits RPD Limit
mg /L
Notes
I
Notes
I
Notes
I
Notes
Notes
I
Notes
I
Notes
I
Notes
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch A19001 - Same - Continued
LCS (4[19001 -1351)
QUALITY CONTROL DATA M
Analvte
Result Flaq
Q
Total Kjeldahl Nitrogen
13
0.48
Matrix Spike (411-19001 -MS1)
Level Result %REC Limits RPD
Limit Notes
Source: C415261 -01
12.0 104 90 -110
Analvte
Result Flaq
POL
Total Kjeldahl Nitrogen
7.0
0.48
Matrix Spike Dup (411-19001 -MSD1)
Level Result %REC Limits RPD
Limit Notes
Source: C415261 -03
4.79 2.1 101 90 -110
Analvte
Result Flaq
POL
Total Kjeldahl Nitrogen
6.8
0.48
9 0 E (D
www.encolabs.com
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 12/19/2014 10:52 Analyzed: 12/22/2014 11:52
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit Notes
mg /L
12.0 104 90 -110
Prepared: 12/19/2014 10:52 Analyzed: 12/22/2014 11:56
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit Notes
mg /L
4.79 2.1 101 90 -110
Prepared: 12/19/2014 10:52 Analyzed: 12/22/2014 11:58
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit Notes
mg /L
4.79 2.1 97 90 -110 3
10
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 0 E (B
www.encolabs.com
I FLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification ".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

ENVIRONMENTAL CONSERVATION LABORATORIES CtiAIN-OF-CUSTODY RECOPD
I II'.- h I , Wray I l` F I I I
4 ,0-. R Awd
CG) jdrTidZzl:'aU F"j&L`imbLtm-= jWA&kjEw 11 11 1,
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Stanclard
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Due
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Up.1 14 IJVj 71 WFtAIVM I'V317.'M 13W.[1irinq'O.'qIw FA L%t-r d;4= Q47 W-W-011 Fma�>src. 11 � It 11971 of 1,11M 14174`{i NU.Wfjl I U til�w mwmmi m, uwiml ij
tirm 01 sum bL& kLilw4ow 14 T"*-.- I.jc.t mr - F% k� -Airimt All *4 w-i -owt!- 44,vs u,+Amapm*- Ammi jrwwwfn wm
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Page 8 of 8

ENCO Laboratories
�eoR11�
Accurate. Timely. Responsive. Innovative.
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, March 31, 2015
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C416637
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Friday, March 20, 2015.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8
9 0 E (D
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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C416637 -01
Sampled: 03/20/15 09:57 Received: 03/20/15 11:05
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
04/17/15
03/25/15
09:53
03/26/15 08:40
EPA 353.2
03/22/15 09:57
03/20/15
14:24
03/20/15 15:19
EPA 353.2
04/17/15
03/24/15
07:30
03/24/15 09:51
EPA 353.2
12/13/17
03/24/15
13:12
03/24/15 13:34
Client ID: Downstream
Lab ID: C416637 -02
Sampled: 03/20/15 10:49 Received: 03/20/15 11:05
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
04/17/15
03/25/15
09:53
03/26/15 08:42
EPA 353.2
03/22/15 10:49
03/20/15
14:24
03/20/15 15:26
EPA 353.2
04/17/15
03/24/15
07:30
03/24/15 09:58
EPA 353.2
12/13/17
03/24/15
13:12
03/24/15 13:34
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8

(96JE(B)
www.encolabs.com
SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C416637 -01
Anal a
Results
Flaa MDL
POLL
Units
Method Notes
Nitrate as N
0.36
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.36
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.90
0.26
0.48
mg /L
EPA 351.2
Client ID: Downstream
Lab ID:
C416637 -02
Anal a
Results
Flaa MDL
POLL
Units
Method Notes
Nitrate as N
0.27
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.27
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.81
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8
9 6 1 ES
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ANALYTICAL RESULTS
1
Description: Upstream
Lab Sample ID:C416637 -01
Received: 03/20/15 11:05
Matrix: Surface Water
Sampled: 03 /20/15 09:57
Work Order: C416637
Project: Town of Cary
Sampled By: Nick Ronan
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
Analvte fCAS Numberl Results
Flag
Units
DF MDL P L
Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8] A
0.36
mg /L
1 0.025 0.10
5C24023
EPA 353.2
03/24/15 13:34 SHA
Nitrate/ Nitrite as NA
0.36
mg /L
1 0.041 0.10
5C24002
EPA 353.2
03/24/15 09:51 SHA
Nitrite as N [14797- 65 -0]A
0.017
U
mg /L
1 0.017 0.10
5C20025
EPA 353.2
03/20/15 15:19 SHA
Total Kjeldahl Nitrogen
0.90
mg /L
1 0.26 0.48
5C25008
EPA 351.2
03/26/15 08:40 SHA
Description: Downstream
Lab Sample ID:C416637 -02
Received: 03/20/15 11:05
Matrix: Surface Water
Sampled: 03 /20/15 10:49
Work Order: C416637
Project: Town of Cary
Sampled By: Nick Ronan
(Classical Chemistry Parameters
•
^ - ENCO Cary certified analyte [NC 5911
Analvte fCAS Numberl Results
Flag
Units
DF MDL P L
Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8] A
0.27
mg /L
1 0.025 0.10
5C24023
EPA 353.2
03/24/15 13:34 SHA
Nitrate/ Nitrite as NA
0.27
mg /L
1 0.041 0.10
5C24002
EPA 353.2
03/24/15 09:58 SHA
Nitrite as N [14797- 65 -0]A
0.017
U
mg /L
1 0.017 0.10
5C20025
EPA 353.2
03/20/15 15:26 SHA
Total Kjeldahl Nitrogen
0.81
mg /L
1 0.26 0.48
5C25008
EPA 351.2
03/26/15 08:42 SHA
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 5C20025 - NO PREP
Blank (SC20025 -BLK3)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrite as N
0.017
U
0.10
I LCS (SC20025-BSI)
mg /L
Analvte
Result
Flaq
POL
Nitrite as N
0.99
Units
0.10
ILCS(5C20025 -BS2)
mg /L
1.00 99 90 -110
Analvte
Result
Flaq
POL
Nitrite as N
1.0
Units
0.10
Matrix Spike (SC20025 -MS1)
mg /L
1.00 100 90 -110
Source: C416637 -01
Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:21
Analvte
Result
Flaq
P_(LL
Nitrite as N
0.97
1.00 0.017 U 97 90 -110
0.10
Matrix Spike Dup (SC20025 -MSD1)
Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:22
Source: C416637 -03
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flaq
POL
Nitrite as N
0.97
0.10
Batch SC24002 - NO PREP
RPD
Units
Level Result %REC Limits RPD
Blank (SC24002 -BLKI)
mg /L
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.041
U
0.10
I LCS (SC24002-BS1)
mg /L
1.25 102 90 -110
Analvte
Result
Flag
P2
Nitrate /Nitrite as N
1.3
Units
0.10
Matrix Spike (SC24002 -MS1)
mg /L
0.513 0.36 128 90 -110
Source: C416637 -03
Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:56
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
1.0
0.513 0.36 99 90 -110 16
0.10
Matrix Spike Dup (5C24002 -MSD1)
Source: C416637 -01
Analvte
Result
Flaq
POL
Nitrate /Nitrite as N
0.87
0.10
Batch 5C25008 - Same
(96JEO)
www.encolabs.com
Notes
I
Notes
I
Notes
I
Notes
I
Notes
Notes
I
Notes
I
Notes
QM -05
M
Notes
QM -11
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8
Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:18
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:10
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 99 90 -110
Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:30
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 100 90 -110
Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:21
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 97 90 -110
Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:22
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 97 90 -110 0.3
10
Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:49
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:47
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.25 102 90 -110
Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:54
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.36 128 90 -110
Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:56
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.36 99 90 -110 16
10
Notes
I
Notes
I
Notes
I
Notes
I
Notes
Notes
I
Notes
I
Notes
QM -05
M
Notes
QM -11
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8

I
(Classical Chemistry Parameters - Quality Control
Batch 5C25008 - Same - Continued
Blank (SC25008 -BLK3)
Analvte
Total Kjeldahl Nitrogen
I LCS (SC25008-BSI)
QUALITY CONTROL DATA
Result Flaq Q
0.26 Ll 0.48
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
12
Units
0.48
Matrix Spike (SC25008 -MS1)
mg /L
Source: C501354 -03
Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:31
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
43
D
1.5
I Matrix Spike Dup (SC25008 -MSD3)
Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:35
Source: C501354 -01
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flaq
P_QL
Total Kjeldahl Nitrogen
42
D
1.5
9 0 E (D
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M
Notes
Notes
I
Notes
QM -05
M
Notes
QM -05
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8
Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:29
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:31
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 100 90 -110
Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:35
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 40 47 90 -110
Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:37
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 40 45 90 -110 0.2
10
M
Notes
Notes
I
Notes
QM -05
M
Notes
QM -05
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8

9 *1E0
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IFLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification ".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
QM -05 The spike recovery was outside acceptance limits for the MS and /or MSD due to matrix
interference. The LCS and /or LCSD were within acceptance limits showing that the laboratory is
in control and the data is acceptable.
QM -11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8

0
Sample Chain of Custody Form
Acct#:
ST018
Client
Stantec Consulting, Inc. (ST018)
Contact:
Kristin Weidner
Ship To:
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
Report To: I 801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
C416637 -01 IS " q r c��um Upstream
Prelog #: C416637
Project# /Reference: Town of Cary
Required TAT: 5
ENCO Contact: Link Thrower
102 -A Woodwinds Industrial Court
Cary, NC 27511
Raleigh, NC 27606
Analysestontainers
Analyses: Nitrate as N 353.2 , Nitrate Calc 353.2 , Nitrite as N
353.2 , NOX 353.2 , TKN 351.2
Containers: 1 - 250mLP . 1 - 250mLP +H2SO4
--------------------------------- - - - - -- - - - -- - ---- - - - - --
C416637 -02 V9 (- ,Mownstream Analyses: Nitrate as N 353.2 , Nitrate Calc 353.2 , Nitrite as N
353.2 , NOX 353.2 , TKN 351.2
Containers: 1 - 250mLP , 1 - 250mLP +H2SO4
Sampled By: Temp:
Condition. _Acceptable _Unacceptable
z ►2,> 07�, 12t, 1 k
Relinquished By: DatilTme: C
Received By: DataMlme:
- JI;1-
Notes.
Containers in this sample kit may contain chemical preservatives as required by the EPA procedures. Information concerning the materials can be found below. DO NOT rinse containers prior to
use!
When filling preserved containers, use caution not to inhale vapors that may be caused in the chemical reaction between the sample and the preservatives. Collect samples in a well - ventilated area
or take appropriate precautions to avoid exposure to these fumes. See cautions below pertaining to the handling of these materials.
It is the shipper's responsibility to ensure that the samples are packed in such a manner to prevent breakage and that any required temperature is maintained during transit until receipt at the
aboratory
A temperature blank has been included to measure the ambient temperature of the cooler upon receipt at the lab. Please do not remove this container from the cooler, but pack along with the
samples in a similar manner. This bottle contains deionized water only
The information below afe PRECAUTIONARY STATEMENTS ONLYI All potential hazards posed by these materials have not been addressed. For additional information or assistance, please
contact your organization's safety professional.
Cautions 8 Abbreviations
HCI Hydrochloric Acid - STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
HNO3 Nitric Acid - STRONG ACID! STRONG OXIDIZER' Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
H310,1 : Phosphoric Acid -STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
H2SO4: Sulfuric Acid -STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
Asc Acid: Ascorbic Acid -Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
ZnAc : Zinc Acetate -Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
NaHSO4 : Sodium Thiosulfate - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. Page 8 of 8
NaOH : Sodium Hydroxide - STRONG CAUSTIC! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
McOH Methanol - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.

ENCO Laboratories
�eoR11�
Accurate. Timely. Responsive. Innovative.
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, June 9, 2015
Stantec Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
RE: Laboratory Results for
Project Number: 171300115, Project Name /Desc: Town of Cary
ENCO Workorder(s): C503609
Dear Kristin Weidner,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, June 2, 2015.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods /procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative. This report shall not be reproduced except in full, without
the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
OO'6LC'=-:;tA
Chuck Smith For Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 9

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 9
9 0 E (D
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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C503609 -01
Sampled: 06/02/15 12:08 Received: 06/02/15 13:13
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
06/30/15
06/04/15
10:00
06/05/15 09:16
EPA 353.2
06/04/15 12:08
06/02/15
14:23
06/02/15 16:03
EPA 353.2
06/30/15
06/04/15
07:30
06/04/15 13:34
EPA 353.2
02/25/18
06/05/15
11:11
06/05/15 14:28
Client ID: Downstream
Lab ID: C503609 -02
Sampled: 06/02/15 12:30 Received: 06/02/15 13:13
Parameter
Hold Date /Time(sl
Preo Date
/Time(s)
Analvsis Date /Time(s)
EPA 351.2
06/30/15
06/04/15
10:00
06/05/15 09:18
EPA 353.2
06/04/15 12:30
06/02/15
14:23
06/02/15 16:05
EPA 353.2
06/30/15
06/04/15
07:30
06/04/15 13:38
EPA 353.2
02/25/18
06/05/15
11:11
06/05/15 14:28
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 9

9 0 E (B
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SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C503609 -01
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.24
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.26
0.041
0.10
mg /L
EPA 353.2
Nitrite as N
0.019
1
0.017
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
1.2
0.26
0.48
mg /L
EPA 351.2
Client ID: Downstream
Lab ID:
C503609 -02
Anal a
Results
Flaa
MDL
POLL
Units
Method Notes
Nitrate as N
0.15
0.025
0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
0.15
0.041
0.10
mg /L
EPA 353.2
Total Kjeldahl Nitrogen
0.88
0.26
0.48
mg /L
EPA 351.2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 9

FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 9
9 6 1 ES
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ANALYTICAL RESULTS
1
Description: Upstream
Lab Sample ID:C503609 -01
Received: 06/02/15 13:13
Matrix: Surface Water
Sampled: 06 /02/15 12:08
Work Order: C503609
Project: Town of Cary
Sampled By: Client
(Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
Analvte fCAS Numberl Results
Flag
Units
DF MDL P L
Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8] A
0.24
mg /L
1 0.025 0.10
5FO5015
EPA 353.2
06/05/15 14:28 SHA
Nitrate/ Nitrite as NA
0.26
mg /L
1 0.041 0.10
5F04002
EPA 353.2
06/04/15 13:34 SHA
Nitrite as N [14797- 65 -0]A
0.019
1
mg /L
1 0.017 0.10
5FO2029
EPA 353.2
06/02/15 16:03 SHA
Total Kjeldahl Nitrogen
1.2
mg /L
1 0.26 0.48
5FO4005
EPA 351.2
06/05/15 09:16 SHA
Description: Downstream
Lab Sample ID:C503609 -02
Received: 06/02/15 13:13
Matrix: Surface Water
Sampled: 06 /02/15 12:30
Work Order: C503609
Project: Town of Cary
Sampled By: Client
(Classical Chemistry Parameters
•
^ - ENCO Cary certified analyte [NC 5911
Analvte fCAS Numberl Results
Flag
Units
DF MDL P L
Batch
Method
Analyzed By Notes
Nitrate as N [14797- 55 -8] A
0.15
mg /L
1 0.025 0.10
5FO5015
EPA 353.2
06/05/15 14:28 SHA
Nitrate/ Nitrite as NA
0.15
mg /L
1 0.041 0.10
5FO4002
EPA 353.2
06/04/15 13:38 SHA
Nitrite as N [14797- 65 -0]A
0.017
U
mg /L
1 0.017 0.10
5F02029
EPA 353.2
06/02/15 16:05 SHA
Total Kjeldahl Nitrogen
0.88
mg /L
1 0.26 0.48
5FO4005
EPA 351.2
06/05/15 09:18 SHA
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 9

I
(Classical Chemistry Parameters - Quality Control
Batch 5FO2029 - NO PREP
Blank (SF02029 -BLK1)
QUALITY CONTROL DATA
Analvte
Result
Flaci
Q
Nitrite as N
0.017
U
0.10
LCS(SF02029 -BSI)
mg /L
Analvte
Result
Flaq
POL
Nitrite as N
0.98
Units
0.10
Matrix Spike (SF02029 -MS1)
mg /L
1.00 98 90 -110
U
Source: C503609 -03
Prepared: 06/02/2015 14:23 Analyzed: 06/02/2015 16:02
Analvte
Result
Flaq
POL
Nitrite as N
0.98
1.00 0.019 96 90 -110
0.10
Matrix Spike (SF02029 -MS2)
Prepared: 06/02/2015 14:23 Analyzed: 06/02/2015 16:07
Source: C503609 -02
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flaq
P_(LL
Nitrite as N
0.99
1.3
0.10
Matrix Spike Dup (SF02029 -MSD1)
RPD
Units
Level Result %REC Limits RPD
Source: C503609 -03
mg /L
1.00 0.019 97 90 -110 0.8
10
Analvte
Result
Flaq
POL
Nitrite as N
0.99
0.10
Batch SF04002 - NO PREP
9 0 E (D
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Blank (SF04002 -BLKI)
Prepared: 06/02/2015 14:23 Analyzed: 06/02/2015 16:00
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Spike Source %REC
Prepared: 06/02/2015 14:23 Analyzed: 06/02/2015 15:40
Analvte
Result
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 98 90 -110
U
0.10
Prepared: 06/02/2015 14:23 Analyzed: 06/02/2015 16:02
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.019 96 90 -110
Prepared: 06/02/2015 14:23 Analyzed: 06/02/2015 16:07
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.017 U 99 90 -110
Level Result %REC Limits RPD
Limit
Prepared: 06/02/2015 14:23 Analyzed: 06/02/2015 16:04
1.3
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
1.00 0.019 97 90 -110 0.8
10
Blank (SF04002 -BLKI)
Prepared: 06/04/2015 07:30 Analyzed: 06/04/2015 13:25
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Nitrate /Nitrite as N
0.041
U
0.10
mg /L
LCS (SF04002 -BS1)
Prepared: 06/04/2015 07:30 Analyzed: 06/04/2015 13:23
Spike Source %REC
RPD
Analyte
Result
Flag
P2
Units
Level Result %REC Limits RPD
Limit
Nitrate /Nitrite as N
1.3
0.10
mg /L
1.25 103 90 -110
Matrix Spike (SF04002 -MS3)
Prepared: 06/04/2015 07:30 Analyzed: 06/04/2015 13:27
Source: C503609 -03
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Nitrate /Nitrite as N
0.75
0.10
mg /L
0.513 0.26 95 90 -110
Matrix Spike (SF04002 -MS2)
Prepared: 06/04/2015 07:30 Analyzed: 06/04/2015 13:40
Source: C503609 -02
Spike Source %REC
RPD
Analvte
Result
Flaq
POL
Units
Level Result %REC Limits RPD
Limit
Nitrate /Nitrite as N
0.55
0.10
mg /L
0.513 0.15 78 90 -110
Matrix Spike Dup (SF04002 -MSD1)
Prepared: 06/04/2015 07:30 Analyzed: 06/04/2015 13:36
Source: C503609 -01
Spike Source %REC
RPD
Ana11L
Result
Flaq
Q
Units
Level Result %REC Limits RPD
Limit
FINAL
This report relates only to the sample as received by the
laboratory, and may only be reproduced in full.
Notes
I
Notes
I
Notes
I
Notes
I
Notes
Notes
I
Notes
I
Notes
I
Notes
QM -05
I
Notes
Page 5 of 9

I
(Classical Chemistry Parameters - Quality Control
Batch 5FO4002 - NO PREP - Continued
Matrix Spike Dup (SF04002 -MSD1) Continued
Source: C503609 -01
QUALITY CONTROL DATA
Analvte Result Flag P2
Nitrate /Nitrite as N 0.81 0.10
Batch 5FO4005 - Same
Blank (SF04005 -BLKi)
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
0.26
U
0.48
1 LCS (5F04005-BS1)
mg /L
0.513 0.26 106 90 -110 8
10
Analvte
Result
Flaci
POL
Total Kjeldahl Nitrogen
12
Units
0.48
Matrix Spike (SF04005 -MS3)
mg /L
Source: C506196 -01
Prepared: 06/04/2015 10:00 Analyzed: 06/05/2015 09:07
Analvte
Result
Flag
PQL
Total Kjeldahl Nitrogen
5.9
12.0 100 90 -110
0.48
Matrix Spike Dup (SF04005 -MSD1)
Prepared: 06/04/2015 10:00 Analyzed: 06/05/2015 09:12
Source: C506196 -03
RPD
Units
Level Result %REC Limits RPD
Analvte
Result
Flaq
POL
Total Kjeldahl Nitrogen
6.7
0.48
(96JEO)
www.encolabs.com
1
7
Notes
I
Notes
I
Notes
I
Notes
QM -05
I
Notes
QM -11
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 9
Prepared: 06/04/2015 07:30 Analyzed: 06/04/2015 13:36
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
0.513 0.26 106 90 -110 8
10
Prepared: 06/04/2015 10:00 Analyzed: 06/05/2015 09:05
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
Prepared: 06/04/2015 10:00 Analyzed: 06/05/2015 09:07
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
12.0 100 90 -110
Prepared: 06/04/2015 10:00 Analyzed: 06/05/2015 09:12
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 1.7 88 90 -110
Prepared: 06/04/2015 10:00 Analyzed: 06/05/2015 09:14
Spike Source %REC
RPD
Units
Level Result %REC Limits RPD
Limit
mg /L
4.79 1.7 105 90 -110 13
10
1
7
Notes
I
Notes
I
Notes
I
Notes
QM -05
I
Notes
QM -11
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 9

9 *1E0
www.encolabs.com
IFLAGS /NOTES AND DEFINITIONS M
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
J The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification ".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
QM -05 The spike recovery was outside acceptance limits for the MS and /or MSD due to matrix
interference. The LCS and /or LCSD were within acceptance limits showing that the laboratory is
in control and the data is acceptable.
QM -11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 9

- 10775 Central Port Dr. 4810 Executive Park Court, Suite 111 102 -A Woodwinds Industrial Ct.
Orlando, FL 32824 Jacksonville, FL 32216 -6069 Cary, NC 27511
(407)826 -5314 Fax[phone] (904)296 -3007 Fax[phone] (919)467 -3090 Fax[phone]
ww yr •w.c.. I ..
Page of
Client Name
Stantec Consulting, Inc.
ST018'
Project Number
171 Gp115
Project Name /Desc
Town of Cary
PO # / Billing Info
Reporting Contact
Kristin Weidner
N
co
M
CU
U
z
Requested Analyses
CV
N M
6 z
CO
Z c'J
V.1 Cn
M
~ X
O
z z
Preservation (See Codes) (Combine as necessary)
Requested 'Turnarour o
Times m
a
Note :Rush requests subject
acceptance by the facility
Standard
Expedited
Due
Address
801 Jones Franklin Road,
City /ST/Zip
Raleigh, NC 276+06
Tel Fax
(9 19) 851 -6q �) -
Sampler(s) Name, Affiliation (Print)
Client
�aam r Si at
Item # Sample ID (Field Identification)
Suite 300
__ -
Collection Date
Billing Contact
Accounts Payable
Site Location / Time Zone
Collection Matrix
Time Comp ! Grab (see codes)
Total # of
Containers
Lab Workorder
c ,503609
Sample Comments
b a
l �a
Downstream
b
SW
2
X
X
X
< Total # of Containers ,
le kit p�repared By rJa' iYime fie mqufsf ed datelfil e Neceived1B 0 Date/Ti
- Comments/Sbecial Reporting Requirements Reh uisF%d By DAtelTime Recei ed 6 Daterrime
�.���......J!!! Relinquished gy Date/Time Received By Date/rime
Co " #'s & p on Receipt Condition on Receipt
�_ 4 _ ' . C ji C on
Unacceptable
Matrix : GW- Groundwater '' - g% 9W-Surface Water WW- Wastewater A -Air O -Other (detail in comments) H -HCI N -HNO3 S -H2SO4 NO -NaOH O -Other (detail in`Lromments)
Note : All samples submitted to ENCO Labs are , - , , with the terms and conditions listed on the reverse of this form, unless prior written agreements exist

Sample Preservation Verification
ENCO Cary
Work Order: C503609
Client: Stantec Consulting, Inc. (ST018)
Logged In: 02- Jun -15 14:01
C503609 -01
(4ff N',I"
Project: Town of Cary
Project #: 171300115
Logged By: John C King
Y` Requirement pin Control Adjusted -
Cont Type Re pr! tControl t nH ,adjusted J /ste � Reagent Used /Comments
B 250mLP +H2SO4 <2 / N / NA Y /M / NA
C503609 -02
Cont I Type Tres (pH) pH Checked J Date/] me Yp Requirement In Control pH Adjusted Adjusted Reagent Used /Comments
B 250mLP +H2SO4 <2 Fu / N / NA ( Y / ((�l / NA
Reagent Name ID Reagent Nan* Ifs Reagent Narne
1; 31 5.�
2I I 41 61
ID
Page 9 of 9
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