20040313 Ver 2_Monitoring Report_20140919

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Maynard Road Nitrogen
Removal Water Quality Study
- Year 1 Interim Report
N /Qi 20040313
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Prepared for:
North Carolina Ecosystem
Enhancement Program
4 Stantec
Prepared by:
Stantec Consulting Services, Inc.
July 31, 2014

Sign -off Sheet
This,document entitled Maynard Road Nitrogen Removal Water Quality Study - Year 1 Interim
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 inJight 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
Z-4 MR 0 W. _1W �
(signature)
Kristin Weidner, PWS
Reviewed by IL�� K,:�
(signature)
Melissa Ruiz, PWS
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MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - YEAR 1 INTERIM REPORT
Table of Contents
1.0 BACKGROUND ................................................................................ ..............................1
2.0 WATER QUALITY SAMPLING PLAN ................................................. ............................... 2
3.0 WATER QUALITY RESULTS ................................................................ ............................... 7
LIST OF TABLES
Table 1 Number of samples collected pre- and post- construction ....... ............................... 6
Table 2 Post - construction water quality results .......................................... ............................... 8
LIST OF FIGURES
Figure1 Monitoring sites ................................................................................ ............................... 5
LIST OF APPENDICES
APPENDIX A POST - CONSTRUCTION LABORATORY REPORTS ........... ............................A.1
Stantec

2
MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - YEAR 1 INTERIM REPORT
1.0 BACKGROUND
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 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 proposed BMP system is to improve water quality in the
Swift Creek subbasin by reducing N exports.
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 initiated in July 2013 and will be
completed in July of 2015.
This report serves as an interim report on the status of water quality and flow data collected to
date. A final report containing a comparison of N loads pre- and post- construction will be
prepared after post- construction monitoring is complete in July 2015.
Stantec

Is
MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - YEAR 1 INTERIM REPORT
WATER QUALITY SAMPLING PLAN
Two water quality and flow 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. A corresponding flow monitoring site (Site # 1 1) was established
approximately 100 feet downstream of Site # 1. Photos of the sites are below. The locations of the
monitoring sites 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.
Photo 1. Water quality Site # 10 (Upstream, post- construction)
® Stantec
F

MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - YEAR 1 INTERIM REPORT
Photo 2. Stage height gage at Site #10 (Upstream, post- construction)
Photo 3. Water quality Site # 1 (Downstream, post- construction)
® Stantec
3
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V
MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - YEAR 1 INTERIM REPORT
Photo 4. Flow cross - section site (Site # 1 1) downstream of Site # 1 (post- construction). Note water
flows freely underneath rock shelf pictured.
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Town of Cary

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MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - YEAR 1 INTERIM REPORT
Sampling entailed collection of water quality samples for Total Kjeldahl nitrogen (TKN), nitrate
(NO2), nitrite (NO3), and nitrate /nitrite (NO2 /NO3). Additionally, cross - sectional area and flow
data was recorded against a stage height gage in order to generate discharge rating curves at
both monitoring sites. Flow and cross - sectional area will be used to calculate discharge in order
to generate total nitrogen load calculations (in pounds) from the water quality data.
A total of 19 samples were collected downstream (Site # 1) and a total of 12 samples were
collected upstream (Site # 10) pre- construction. For statistical validity, approximately the same
number of samples will be collected post- construction. Table 1 below summarizes the number of
samples collected pre- construction and post- construction, and the number of samples
remaining for post- construction monitoring.
Table 1 Number of samples collected pre- and post- construction
® Stantec
No. of Samples
Post-
Post -
Pre-
Construction
construction
Site
Construction
to date
(remaining)
Site 10
12
7
-6
(Upstream)
Site 1
19
7
-6
Downstream
® Stantec

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MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY - YEAR 1 INTERIM REPORT
3.0 WATER QUALITY RESULTS
To date, seven water quality samples have been collected post- construction. It would be
statistically invalid to compare N loads pre- and post- construction without a sufficient number of
post- construction samples. A final report on the comparison of N loads pre- and post -
construction will be prepared after post- construction monitoring is complete in July 2015.
Table 2 summarizes the water quality data collected post- construction in the study area
between July 2013 and July 2014. Copies of the full laboratory reports are presented in Appendix
A.
® Stantec

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MAYNARD ROAD NITROGEN REMOVAL WATER QUALITY STUDY — YEAR 1 INTERIM REPORT
Appendix A Post - Construction Laboratory Reports
July 31, 2014
Appendix A POST - CONSTRUCTION LABORATORY REPORTS
(3 Stantec
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Ape Y i
Aftwffi MCA.', � '`rte 7 -06 N 0� Opeg
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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, Suite1300
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 wdl'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
1
This report relates only to the sample as received by the laboratory, and may only be reproduced in full
Page 1 of 8
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SAMPLE SUMMARY / LABORATORY CHRONICLE
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Client ID: Site 1 -DS
LabrID: C309605 -01
Sampled: 07/29/13 14:50 Received: 07,/29/13 15:30
Parameter
EPA 3512
Hold Date /Time(s)
08/26/13
Pma Date
08/02/13
/Time(sl Analysis Date /Time(sl
1155 08/05/13 09 43
EPA 353 2
07/31/13 1450
07/30/13
1311 07/30/13 34 20
EPA 353 2
08/26/13
07/31/13
0720 07/31/13 12 02,
EPA 353 2
04/23/16
07/31/13
1434 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
EPA 3512
Hold Date /Time(s)
08/26/13
Pren Date
08/02/13
/Time(s1 Analysis, Date/Timefs)
11 55 08/05/13 09 45
EPA 353 2
07/31/13 0945
07j30/13
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
1434 07/31/13 14 42
i
FINAL 'This'report relates only to the sample as received by the,laboratory, and,may only be reproduced m,full Page,2 of 8

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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 3 of 8
SAMPLE'DETECTION SUMMARY
Client ID: Site 1, -DS
Lab ID:
0309605 -01
Anahrte
B
FJ,s Hu
EQL
Units
Method Notes,
Total'K7eldahl,Nitrogen
050
0.26
048
mg /L
EPA 3512
Client ID: Site 10 -US
Lab ID:
C309605 -02
A0alyte
89sul
E619 Hu
E"
Units,
Method Notes
Nitrate as N
016
0 025
010
mg /L
EPA 353 2
Nitrate %Nitrite as N
018
0 041
010
mg /L -
EPA *353 2
Nitrite as N
0 023
1 0 017
010
mg /L
EPA 353'2
Total Kjeldahl Nitrogen
064
016
048
mg /L
EPA 3512
t
'FINAL This report relates only to the sample as received by the laboratory„and may only be reproduced in full Page 3 of 8

ANALYTICAL RESULTS
Description: Site 1 -DS Lab Sample ID:C309605 -01
Matrix: Surface Water Sampled: 07 /29/13'14.50
Project: Maynard N Removal Sampled By: Knsbn Weidner
Classical Chemistry Parameters
^ - ENCO Cary certified ana4 to [NC 5911
www.encolabs.com
Received: 07/29/13 15.30
Work Order: C309605
Analvte rCAS Numberl Results
Flag
unts
]IE
]U
TQL
BAfgh
Method
Analyzed
ft ]Vnfnc
Nitrate as N [14797- 55 -8]^
0 025
U
mg /L
1
0.025
010
31331026
EPA 353 2
07/31/13 14 42
JCS
Nitrate /Nitrite as N [ECL- 0010]^
0 041
U
mg /L
1
0 041
010
- 3G31002
EPA 353 2
07/31/13 12 02
JCS
Nitnte as N [14797- 65 -0]^
0 017
U
mg /L
1
0 017
010
3G30019
EPA 353 2
07/30/13 14 20
JCS
Total Kjeldahl Nitrogen [ECL- 0162]^
0.50
mg /L
1
026
048
3HO2005
EPA 3512,
08/05/13 09 43
JCS
Description: Site 10 -US
Lab Sample ID:C309605 -02
Received: 07/29/13 15:30
Matrix: Surface Water
Sampled:07 /29/13 09.45
Work Order: C309605
Project: Maynard N Removal
Sampled By: Kristin Weidner
Classical Chemistry,Parameters
^ - ENCO Cary certified ana4,te [NC 5911
Analvte rCAS Numberl Results
Flag
Units
]E
MU
PQL
ukh
Method
Analyzed
Notes
Nitrate as N [14797= 55 -8]^
0.16
mg /L
1
0 025
010
3G31026
EPA 353 2
07/31/13 14 42
JCS'
Nitrate /Nitrite as N [ECL- 0010]^
0.18
mg /L
1
0041
0110
3G31002
EPA 353 2
07/31'/13612 02
JCS'
Nitrite as N [14797- 65 -0]^
0.023
J
mg /L
1
0017
010
31330019
EPA 353 2
07/30/13 14 22
JCS
Total Kjeldahl Nitrogen [ECL - 0162] ^'
0.64
mg /L
1
026
048
3HO2005
EPA 3512
08/05/13 09 45
JCS
r
FINAL
This report relates only to the sample as received,by the laboratory, and may only be reproduced in full
Page 4 of 8

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www.encolabs.com
Spike Source %REC RPD
Anal Result Elm P-QL WAS Level 'Result; %REC Limits RPD Limit Notes
Nitrite as N 097 010 mg /L 100 97 90 -110
LCS (3G30019 -BS4) Prepared 07/30/2013 13 11 Analyzed. 07/30/2013 14 49
QUALITY CONTROL DATA
RPD
Classical Chemistry Parameters - Quality Control
Result Flan" POL Units Level Result %REC Lipiits RPD
Spike Source %REC
-
Analybe
Batch 3G30019 - NO PREP
Elan
P9L
Units
Level Result %REC Limits RPD
Limit Notes
Blank (3G30019 -BLK:)
096
Spike Source. %REC
Prepared 07/30/2013 13 11 Analyzed, �07 /30/2013 14 19
mg /L
Ana11ite Result Elm
Nltnte as N 0 017 U
PQL
010
Unite
mg /L
Spike Source %REC
Level Result %REC Limits RPD
RPD
Limit Notes
LCS,(3G30019 -BS1)
Prepared 07/30/2013 13 11 Analyzed 07/30/2013 14 21
Prepared 107/30/2013'13'11 Analyzed 07/30/2013 13 59
Analide Result Elan
Nitrite as N 095
RQL
010
Units
mg /L
Spike Source %REC
Level Result %REC Limits RPD
100 95 90 -110
RPD
Limit Notes
LCS (31330019 -BS2)'
Prepared 07/30/2013 13.11 Analyzed 07/30/2013 14 25
Anal Result Etas
Nitrite as N 096
PAL
0 10
Units
mg /L
Spike Source %REC
Level Resin %REC Limits RPD
100 96 90 -110
RPD
Limit Notes
LCS (3G30019 -BS3)
Units
Level Result %REC Mmits RPD
Prepared 07/30/2013 13 11 Analyzed 07/30/2013 14 44
Nltnte as N
Spike Source %REC RPD
Anal Result Elm P-QL WAS Level 'Result; %REC Limits RPD Limit Notes
Nitrite as N 097 010 mg /L 100 97 90 -110
LCS (3G30019 -BS4) Prepared 07/30/2013 13 11 Analyzed. 07/30/2013 14 49
Spike Source %REC
RPD
Analvte
Result Flan" POL Units Level Result %REC Lipiits RPD
Spike Source %REC
RPD
Analybe
Result
Elan
P9L
Units
Level Result %REC Limits RPD
Limit Notes
Nitrite as N
096
Spike Source. %REC
010
mg /L
100 96 90 -110
Limit Notes
Matrix Spike (3G30019 -MS1)
This report relates only to the sample as received by the laboratory, and may only be reproduced in full
Page 5 of 8
Prepared 07/30/2013 13 11 Analyzed 07/30/2013 14 21
Source: C309605 -01
Spike Source %REC
RPD
Analyte
Result
alas
M
Units
Level Result %REC Mmits RPD
Lima Notes
Nltnte as N
098
010
mg /L
100 0 017 U 98 90 -110
Matrix Spike Dup (3G30019 -MSD3)
Prepared 07/30/2013 13 11 Analyzed 07/30/2013'14 22
Source: 0309605 -01
Spike Source %REC
RPD
Anallde
Result
Ela9
P-QL
Unity
Level Result %REC Limits RPD
Limit Notes
Nitrite as N
10
0 10
mg /L
1,00 0 017 U 100 90 -110 1
10
Batch 3G31002 - NO PREP
Blank,(3G31002 -BLK3)
Prepared 07/31/2013 07 20 Analyzed .07/31/2018 11 12
Spike Source %REC
RPD
Analyte
Result
Flan
PAL
Units
Level Result %REC 'Urn"ts RPD
Limit Notes
Nitrate /Nitrite as N
0 041
U
010
mg /L
x
LCS (3G31002 -BS1)
Prepared, 07/31/2013 07 20 Analyzed 07/31/2013 11 16
Spike Source %REC
RPD
Analvte
Result Flan" POL Units Level Result %REC Lipiits RPD
Lima Notes
Nitrate /Nitrite as N
1,3 010 mg /L 1 25 103 90-110
Matrix Spike (3G31002 -MS3)
Prepared 07/31/2013 07 20 Analyzed 07/31/2013 11 21
Source: 0308252 -02
Spike Source. %REC
RPD
Ana110&
Result Elan PQL Units Level Result %REC Limits RPD
Limit 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

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1l: www.encolabs.com
QUALITY-CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch 3G31002 - NO PREP - Continued
I Matrix Spike QG31002 -MS3) Continued Prepared 07/31/2013 07 20 Analyzed 07/31/2013 11 21 1
'Source: C308252 -02,
Spike
Source
,Spike Source %REC
RPD
Anal Ytg Result
Flan' M
Units Level Resulh . %REC Limits RPD
Limit Notes
Nitrate /Nitrite as'N 14
10
mg /L 5'00 11 46 90 -110
QM -05
Matrix Spike Dup (3G81002 -MSD3)
048
Prepared 07/31/2013'07 20,Analyzed 07/31/2013 1123
479
Source: C308252 -02
99
90 -110
Matrix Spike'Dup (3H02005 -MSD1)
Spike Source %REC
RPD
Anal lde Result
Flan PGL
Units Level Result %REC limits RPD
limit Notes
Nitrate /Nitrite as N 14
10
mg /L 500 11 54 90 -110 3
10 QM -05
Batch 3H02005 - Same
Blank (3H02005 =BLK1)
Source
Prepared 08/02/2013 11 55,Analyzed 08/05/2013 09 14
%REC
Spike Source %REC RPD
Analvte Result Flag P_4L Units Level Result %REC Limits RPD Lima Notes
Total K7eldahl'Nitrogen 026 U 048 mg /L
LCS,(3H02005 -BS1) r Prepared 08/02/2013 1155 Analyzed '08/05/2013 09.17
Spike Source %REC RPD
Analyte Result Flan POL units Level Resin %REC Limits 'RPD Limit Notes
Total K7eldahl Nitrogen 12 048 mg /L 120 99 90 -110
Matrix Spike (3H02005 -MS1) Prepared 08/02/201341 55 Analyzed 08/05/2013 09 21
FINAL This report relates only to the sample as received by thelaboratory, and'may only be reproduced in full Page 6 of, 8,
Spike
Source
%REC
`RPD
Anallds Result
Flan PGL
Units
Level
Besult
%REC
limit RPD
limit Notes
Total Kjeldahl Nitrogen 89
048
mg /L
479
41
99
90 -110
Matrix Spike'Dup (3H02005 -MSD1)
Prepared ,08/02/2013 11 55 Analyzed 08/05/201109 23
Source: C308252 -02
Spike
Source
%REC
RPD
Anal Resul
Flag PQL
Units
Level
Besul
%REC
limit RPD
Limit Notes
Total Kleldahl Nitrogen 92
048
mg /L
4-79
41
105
90 -110 3
10
FINAL This report relates only to the sample as received by thelaboratory, and'may only be reproduced in full Page 6 of, 8,

www.encolabs.com
FLAGS /NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed,at dilution.
7 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, appllcable.
E The concentration indicated -for this analytelis an estimated value above the,calibration range of the
Instrument. This value Is considered an estimate.
r
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 caseW sod samples, moisture content.
QM -05 The spike, eecovery 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

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'r't ; - AM W, ON Q- 01* , I - WN
A'APON; WARA" D M ww&
102 -A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, October 15, 2013
Stantec,Consulting, Inc. (ST018)
Attn: Kristin Weidner
801,3ones 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 liy Environmental Conservation
Laboratories. Unless otherwise noted, all,analyses were'performed it.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,
e�l e
Link Thrower
Project a Manager
Enclosure(s)
FINAL This report relates only to the sample as, receivedl by the laboratory,and may only be reproduced in full Page 1 of 8

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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(s)
Preg Date
/Time(s) Analysis Date /Time(s)
EPA 3512
11/05/13
10/09/13
1119 10/10/13 10 54
EPA 353 2
10/10/13 09 15
10/09/13
0904 10/09/13 09 04
EPA353 2
11/05/13
10/08/13
15 18 10/08/13 15 18
EPA353 2
07/03/16
10/09/13
1141 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
EPA 351.2
Hold Date /Time(s)'
11/05/13
Pip Date
10/09/13
/Time(s) Ana sis Date /Time(s)
11 19 10%10/13 10 57
EPA,3532
10/10/13 1010
10/09/13
0905 10/09/13 09 05
EPA'353 2
11/05/13
10/08/13
1519 10/08/13 15 19
EPA 353 2
07/03/16
10/09/13
1141 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

CS
0
FINAL This report relatesonly, to the sample as received by the laboratory, and may only be reproduced in full Page 3 of 8
SAMPLE DETECTION SUMMARY
www.encolabs.com
Client ID: Site 10 -US
Lab ID: C313093 -03
Anal>de
Total K7eldaKl Nitrogen
Results Eat Hu EQL
062 026 048
Units Method Dotes
mg /L EPA 3512
Client ID: Site 1 -DS
Lab ID: C313093 -02
Anatilte
Total Kjeldahl Nitrogen
Results flan MU E"
065 0-26 048
unm Method Motes
mg /L EPA 3512
0
FINAL This report relatesonly, to the sample as received by the laboratory, and may only be reproduced in full Page 3 of 8

y
0
FINAL This report relates only to the sample as received by the laboratory„and may only be reproduced in full Page 4 of 8
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ANALYTICAL RESULTS
Description: Site 10 -US
Lab Sample ID:C313093 -01
Received: 10/08/13 10.27
Matrix: Surface,Water
Sampled: 10 /08/13 0915
Work Order:FC313093
Project: Maynard N Removal
Sampled By: Kristin Weidner
Classical Chemistry Parameters
^ - ENCO Cary certified anaoe [NC 5911
Anahrte rCAS Numberl Results
flag
Ug[t
DE MU EQL RAM
Method
Anahaed R1L, Notes
Nitrate as N [14797- 55 -8]A
0.025
U
mg /L
1 01025 010 3109019
'EPA 353 2
10/09/13 12 56 Cv
Nitrate /Nitrite as N [ECL- 0010]^
0 041
U
mg /L
1 0 041 010 3108001
EPA 353 2
10/08/13 15 18 civ
Nitnteias N [14797- 65 -0]A
0.017
U
mg /L
1 0 017 010 3709002
EPA 353-2
10/09/13 09 04 civ
Total Kjeldahl Nitro gen [ECL- 0162]A
0.62
mg /L
1 0 26 048 '3309007
EPA 351.2
10/10/13 10 54 civ
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 cerbfied anaW [NC 5911
Anahrte rCAS Numberl Results
F[ag
Units
9E MU Ea Batch
Method,
Analyzed ft Notes
Nitrate as N [14797- 558]A
0 025
0
mg /L
1 0025 0 10 3]09019,
EPA 353 2
10/09/1312 56 Cv
Nitrate /Nitrite as N [ECL- 0010]^
0 041
U
mg /L
1 0.041 0 10 3]08001
EPA 353 2
10/08/13 15 19 civ
Nitrite as'N'[14797- 65 -0]^
0.017
U
mg /L
1 0 017 0'10 3]09002
EPA 353'2
10/09/13 09 05 civ
Total Kjeldahl Nitrogen [ECL- 0162]A
0.65
mg /L
1 0 26 048 3309007
EPA 3512
10/10/13 10 57 civ
0
FINAL This report relates only to the sample as received by the laboratory„and may only be reproduced in full Page 4 of 8

r
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QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch 3108001- NO PREP
Blank (3108001 -BLK1) Prepared 10/08/2013 12 50 Analyzed 10/08/2013-12 50
Spike Source %REC RPD
Anande Result Elm Eal. Units. Level ;Result ' %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 0 041 U 010 mg /L
LCS,(3308001 -BS1) Prepared 10/08/2013 13.17,Analyzed 10/08/2013 13 17
Spike Source %REC RPD
Anal ade Result Flan PQL Units Level Result %REC Limits RPD Lima Notes
Nitrite as N 0 017 U 010 mg /L
LCS (3309002 -BS1) Prepared 10/09/201108 28 Analyzed 10/09/2013 0828
Spike Source %REC
RPD
Anal lfte Result
Flan M
Units,
Level Result %REC Limits RPD
Limit Notes
Nitrate /Nltrite,as N 1,2
010
mg /L
125 95 90 -110
Nitrite as N
Matrix Spike (3308001 -MS1)
010
Prepared 10/08/2013 13 25 Analyzed 10/08/2013 13 25
100 98 90 -110
Source:iC309375 -01
Matrix Spike (3309002 -MS1)
Prepared`& Analyzed 110/09/201309 01'
Spike Source %REC
RPD
AnalYtB Result
Elan POL
Units
Level Resin o /aREC Limits, RPD
Limit Notes
Nitrate /Nitrite as,N 017
0110
mg /L
0 513 019 AR 90 -110
QM -07
Matrix,Spike Dup (3308001 -MSD3)
RPD
Analvte'
Prepared 10/08/2013 13 28 Analyzed 10/08/2013 13 28
MCI
Source: C309375 -01
Unft
Level Result %REC Limits RPD
Limit Notes
Nitnte as N
10
010
Spike Source %REC
RPD
Anallrte Result
Flan PQL
Un(m
Level Result %REC Limits RPD
Limit Notes
Nitrate /Nitrite as N 0.17
0 10
mg /L
0 513 019 NR 90 -110 0 2
10 QM -07
Batch 3109002 - NO PREP
Blank (3309002 -BLKl)
Prepared 10/09/2013 08 57 Analyzed 10/09/2013 08 57
Spike Source %REC RPD
Anal ade Result Flan PQL Units Level Result %REC Limits RPD Lima Notes
Nitrite as N 0 017 U 010 mg /L
LCS (3309002 -BS1) Prepared 10/09/201108 28 Analyzed 10/09/2013 0828
FINAL This report relates only to the sample as received Iby the laboratory, and may only be reproduced in full Page 5 of 8
Spike Source %REC
RPD
Anal vte
Result
Flag
P-GL
Units
Level Resul! %REC Limits RPD
bimit Notes
Nitrite as N
0198
010
mg /L
100 98 90 -110
Matrix Spike (3309002 -MS1)
Prepared`& Analyzed 110/09/201309 01'
Source:'C312748 -01
Spike Source %REC
RPD
Analvte'
Result
MCI
PQL
Unft
Level Result %REC Limits RPD
Limit Notes
Nitnte as N
10
010
mg /L
100 0 017 U 103 90 -110
Matrix Spike Dup (3309002 -MS61)
Prepared 10/09/2013 09 01 Analyzed 10/09/2013 09 01
Source: C312748 -01
Spike Source %REC
RPD
Anal
Result
Flag
P91
Units
Level Result %REC Limits RPD
'Limit Notes
Nitnte as N
11
010
mg /L
100 0 017 U 105 90 -110 2
10
Batch 3109007 - Same
Blank (3309007 -611-Kl)
Prepared 10/09/2013 11 19 Analyzed 10/10/2013 09 57
Spike Source %REC
RPD
Ana11dg
Result
Flag
P”
Unim
Level RessllL %REC Ljmitg RPD
Limit Notes
Total Kleldahl Nitrogen
026
U
048
mg /L
FINAL This report relates only to the sample as received Iby the laboratory, and may only be reproduced in full Page 5 of 8

y
ENC0
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Source: C308705 -01
Anallde
Total K7eldahl Nitrogen
FINAL
Spike Source %REC
Result Elm P91 Units Level Sew %REC Limits RPD
60 048 mg /L 479 12 100 ,90 -110 07
This report relates only to the sample,as received bydhe laboratory, and'may only be reproduced'm full
RPD
Limit Notes
10
Page 6bf 8
QUALITY CONTROL, DATA
Classical Chemistry Parameters - Quality Control
Batch 3109007 - Same,- Continued
LCS`(3309007 -BSI)
Prepared 10/09/2013 11 19 Analyzed 10/10/2013 10 00
Anallde Result Flan
Total K7eldahl Nitrogen 12
MI.
048
Spike Source %REC
Anita. Level "Result %REC Limits RPD
mg /L 120 100 90 -110
RPD
Limit Notes
Matrix, Spike,(3309007 -MS1)
Prepared, 16/09%2013 11 19 Analyzed 10/10/2013 10.04
Source: C308705 -01
Anal lde Result Rao
'Total K7eldahl,Nitrogen 60
P91
048
Spike Source %REC
Units Level, Bed %REC Limits RPD
mg /L 479 12 101 90 -110
RPD
Limit Notes
Matrix Spike Dup (3309007 -MSDI)
Prepared 10/09/2013 11 19 Analyzed 10/10/2013 10 06
Source: C308705 -01
Anallde
Total K7eldahl Nitrogen
FINAL
Spike Source %REC
Result Elm P91 Units Level Sew %REC Limits RPD
60 048 mg /L 479 12 100 ,90 -110 07
This report relates only to the sample,as received bydhe laboratory, and'may only be reproduced'm full
RPD
Limit Notes
10
Page 6bf 8

CS go �►
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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.
] The reported value IsIbetween the laboratory" method detection limit (MDL)'and the laboratory method
reporting limit (MRL'), ad)usted`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 amestimate
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 recerved'by the laboratory, and may only be reproduced in full Page,7 of 8

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�a�,@y -'r� ?Y n.P -. �+s.a- �. _. .s .Mme. -s._ _b �•.A ' map aw:
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): C3158SS
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 m 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 recerved1by the,laboratory, and may only be reproduced in full Page 1 of 8

Ni
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SAMPLE SUMMARY /LABORATORY CHRONICLE
Client ID: Site 1 -DS
Lab ID: C315SSS -01
Sampled: 12/10/13. 11:45 Received: 12/10/13 12:15'
Parameter
EPA 3512
Hold Date /Time(s)
01/07/14
Piren Date
12/13/13
/Time(s) ,Analysis Date /Time(s)
1044 12/16/13 1056
EPA 353 2
12/12/13 11 45
12/10/13
1731 12/10/13 1731
EPA 353,2
01/07/14
12/13/13
0742 12/13/13 1222
EPA 353 2
09/04/16
12/16/13
1103 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
EPA 3512
Hold Date /Time(s)
01/07/14
PreQ Date
12/13/13
/Time(sl Ana sis Date /Time(s)
1044 12/16/13 1058
EPA 353 2
12/12/13 1100
12/10/13
1733 12/10/13 1733
EPA 353 2
01/07/14
12/13/13
0742 11/13/13 12 23
EPA 353 2
09/04/16
12/16/13
11 03 12/16/13 1115
I
FINAL This report relates only to the sample as receiv ed by the laboratory, and may only be reproduced,in full Page'2 of 8

V,
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0
P
FINAL This report relates only, to the sample as received try the laboratory, and may only be reproduced on-full Page 3 of 8
SAMPLE DETECTION SUMMARY
Client ID: Sited -DS
Lab ID:
C315855 -01
A08lyte
Results
flag MU
EQL
Ulf"
Method dotes
Nitrate as N
018
0 025
010
mg /L
EPA 353 2
Nitrate /Nitrite as N
018
0 041
0 -10
Mg/1L
EPA 353.2
Total K7eldahl Nitrogen
055
026
0.48
mg /L
EPA 351.2
Client ID: Site 10 -US
Lab ID:
C315855 -02
Anal>te
Results
flag MU
EQL
main
Method dotes
Nitrate as N
020
0 025
010
mg /L
EPA 353 2
Nitrate /Nitrite as N
022
0 041
010
mg /L
EPA 353-2
Nitnte -as N
0 017
J 0 017
010
mg /L
EPA 353 2,
Total Kleldahl Nitrogen
063
026
048
mg /L
EPA 3512
0
P
FINAL This report relates only, to the sample as received try the laboratory, and may only be reproduced on-full Page 3 of 8

1
cem
M99
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ANALYTICAL RESULTS
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:Knstln`Weldner
Classical Chemistry Parameters
^ - ENCO Caly certified ana" [NC 591]
Analvte, rCAS Numberl
Results'
flag Maas
PE HU 12L Batch
Method
Nitrate as,R[14797- 55 -8]^
0.18;
mg /L
1 0025, 010 31-16017
EPA 353 2
Nitrate /,Nitrite,as,N [ECL- 0010]^
0.18
mg /L
1 0,041 010 3L13002
EPA 353 2
Nltrite,as N [14797- 65 -0]^
0 017
U mg /L
1 0 017 010 3LI0028
EPA 353 2
Total Kjeldahl Nitrogen [ECL - '0162]^
0.55'
mg /L
1 026 048 31-13003
EPA 3512
Description: Site 10 -US
048,
3L13003
Lab Sample ID:C315855 -02
3512
Matrix: Surface Water
Sampled: 12 /10/13 11.00
Project: Maynard N Removal
Sampled By: Kristin Weidner
Classical Chemistry Parameters
^ = ENCO Cary certified analyre [NC 591]
Flag UnM
Nitrate as M [14797- 55 -8]^
0.20 mg /L
Nitrate /Nitritelas,N [ECL- 0010]^
0.22 mg /L
Nitrite as N [14797- 65 -0]^
0.017 3 mg /L
Total Kjeldahl Nitrogen [ECL- 0162]^
0.63 mg /L
/
PE
Hu
EU
utra
Method
clv
1
0,025
0.10
3LI6017
EPA
353 2
1
0`041
`0 10
3L13002
EPA
353 2
1
0 017
610
3L10028
EPA
353 2
1
0 26'
048,
3L13003
EPA
3512
Anatil7�Sd
@Y ]Votes
12/16%13 1115
Cv
12/13113 12 22
clv
12/10/13 17 31
clv
12/16/13 10 56
clv
Received: 12/10/13 12.15
Work Order: C315855
Anahfzed
ft Motes
12/16/13 11 15
Cv
12/13%13 12 23
civ
12/10/13 17 33
clv
12/16/13 10 58
clv
'FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full Page 4 of 8
t

1
CS NIS CO +�
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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 5 of 8
QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch,3L10028 - NO PREP
Blank (31.30028 -611-Kl)
Prepared 12/10/20134618 Analyzed 12/10/2013 16 18'
Spike Source %REC
RPD
Anallfte
Result
Elm
P9L
!!nits
Level Result %REC Limits RPD
Limit Notes
Nitrite as -N
0 017
U
010
mg /L
LCS (3110028 -BS1)
Prepared 12/10/2013 16 05 Analyzed 12/10/2013 16 05
i
Spike Source %REC
RPD
Analyte
Result
Elm
WL
Units
Level! get %REC Limits RPD
limit Notes
Nitrite as N
0 96'
0 10
mg /L
100 96 90 -110
Matrix Spike (31.10028 -MSI)
Prepared 12/10/2013 17 23 Analyzed 12/10/2013 17 23
Source: C315401 -03
Spike Source %REC
RPD
Anal vte
Result
Rao
PQL
Units
Level get %REC limits RPD
Limit Notes
Nitrite as N
1 1
010
mg /L
100 0 017 U 107 90 -110
Matrix Spike Dup (31.10028 -MSD1)
Prepared 12/10/2013 17.24 Analyzed 12/10/2013 17 24
Source: C315401 -01
Spike Source %REC
RPD
AnalYte
Result
E)ag
P4L
Units.
Level Result %REC Limits RPD
Limit Notes
Nitrite as`N
1 1
010
mg /L
100 0 017 U 106 90 -110 08
10
Batch 3L13002 - NO PREP
Blank (31.13002 -BLKI)
Prepared 12/13/2013 07.42 Analyzed 12/13/2013 11 03
Spike Source %REC
RPD
Analyte
Result
flag
PGL
Units
Level Result %REC Limits RPD
Limit Notes
Nitrate /Nitrite as N
0 041
U
010
mg /L
LCS (31.13002 -BSI)
Prepared 12/13/2013 07 42 Analyzed 12/13/2013 1'1 01
Spike Source %REC
RPD
Analvte
Result
flag
P41
Units
Level Resul %REC Limits RPD
limit Notes
Nitrate /Nitrite as N
13
0 10
mg /L
125 102 90 -110
Matrix Spike (31.13002 -MS3)
Prepared 12/13/2013 07 42 Analyzed 12/13/2013 11.12
Source: C311807 -01
-
Spike Source %REC
RPD
Analyte
Result
flag
P-QL
Unit,
Level Result %REC Limits RPD
Lima Notes
Nitrate /Nitrite as N
12
0 10
mg /L
0 513 0 56 117 90 -110
QM -05+
Matrix Spike Dup (31.33002- MSD'1)
Prepared. 12/13/201307 42 Analyzed 12/13/201311.14
Source:,C311807 -01
Spike Source %REC
RPD
Anal
Result
Elm
P"
Units
Level gesul %REC Limits, RPD
Limit Notes
Nitrate /Nitrite'as N
12
010
mg /L
0 513 056 120 90 -110 2
10 QM -05
Batch 3L13003 - Same
Blank (31.13003 -BLK1)
Prepared 12/13/2013 10 44 Analyzed 12/16/2013'10 00
Spike Source %REC
RPD
Anal lde
Result
Elag
P-GL
Unit
Level get , %REC Limits RPD
Limit Notes
Total Kleldahl Nitrogen
026
U
048
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
ce-NSWO)
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QUALITY CONTROL DATA
Classical Chemistry, Parameters, - Quality Control
Batch 3[13003 - Same,- Continued
LCS (31.13003 -BSI) Prepared 12/13/2013 10 44 Analyzed i2 /16/2013 10 03
Source: C311807 -01
Anal lLt& 'Result Etas M
Total Kleldahl Nitrogen 56 048
Spike Source %REC
Units Level Result %REC Limits RPD
mg /L 479 0 72 102 90 -110 2
FINAL This report relates only to the sample as received by the laboratory, and may only tie reproduced in full
RPD
Limit Notes_
10
Page 6 of 8
Spike Source %REC
RPD
9naiyte Result
Flag P41
Units Level Result %REC Limits RPD
Limit Notes
Total Kieldahl Nitrogen 12
048
mg /L 12,0 104 90 -110
Matrix Spike (31.33003 -MS1)
Prepared 12/13/2013 10 44,Analyzed. "12 /16/2013 10 07
Source:'C311807 -01
Spike Source %REC
RPD
Anal lde Result
Elm PQI.
Units Level Resin %REC Limits RPD
Limit Notes
Total Kieldahl Nitrogen 55
048
mg/L. 4-79 072 100 90 -1110
Matrix Spike Dup (31.13003 -MSD1)
Prepared 12/13/2013 10 44 Analyzed 12/16/2013,10 09
Source: C311807 -01
Anal lLt& 'Result Etas M
Total Kleldahl Nitrogen 56 048
Spike Source %REC
Units Level Result %REC Limits RPD
mg /L 479 0 72 102 90 -110 2
FINAL This report relates only to the sample as received by the laboratory, and may only tie reproduced in full
RPD
Limit Notes_
10
Page 6 of 8

B
D
U
E
MRL
QM -05
Y
Ce NS 0 -0)
✓♦'
- www.encolebs.00m
FLAGS/ NOTES AND DEFINITIONS
The analyte was,detected'In the associated method' blank.
The sample was analyzed at dilution.
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
The analyte was,analyzed -for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
The concentration Indicated for this analyte Is,an estimated value above the calibration range of the
Instrument. This value Is considered an estimate.
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.
The spike recovery was outside °acceptance limits for the MS,and%or MSD duelo matrix
Interference The LCS and /or LCSD were within acceptance limits showing that,the laboratory'Is
In control and the data is acceptable.
W
FINAL This report relates only to the sample as received by the laboratory; and may only be reproduced in full Page 7 of 8

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Z ab -o Oa 'em �,
At.-w-•r -ae�i ' a �} 0 1� 1 �s , a� e.^ 4` —1-910,40 k"
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,,January6, 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:
T,his�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,
le
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
a
Page 1 of 8
0
m
•

'8
l
'FINAL Thisseport relates only todhe,sample,as recerved;by the laboratory; and may only be reproduced in full Page 2 of 8
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SAMPLE3suMMARY /LABORATORY CHRONICLE
Client ID: Upstream
_ LabjD: C315256 -01
Sampled: 01/06%14 10:30
Received: 01/06/14 11:30
'Parameter
EPA 351'2
Hold'Date
02/03/14'
/Time(sl Preo Date/rime(s)
01/10/14
AnalvsliMate /Time(s),
1102, 01%13/14 09 50
EPA 353 2
01/08/14
1030 01%07/14
09.52 01'/07/14 09 52
EPA 353 2
02/03/14
01/07/14
12 11 01'/07%1,4 12 1'1
EPA 353 2
10/01/16
01/13/14
12 39 01/13/14 1,252
'Client ID: Downstream
Lab ID_ C315256 -02
Sampled: 01/06/14 11:20
Received: 01/06114 11:30 IT
Parameter
EPA,351 2
Hold Date
02/03/14
/Time(s] Preo Date
01%10/14
/Rime(s] Analysis Date /Time(sl
11 02 `01%13/14 0952
,EPA-353 2
01/08/14
11 20 01/07/,14
0954 01/07/14 0954
EPA 353 2
02/03/14
01/07/14
12:22 01'/07/14 1222
EPA 3532'
10/01'/16
01'/, 13/,1'4
12 39' 01/13/14 1252
l
'FINAL Thisseport relates only todhe,sample,as recerved;by the laboratory; and may only be reproduced in full Page 2 of 8

Ca N04
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced imfull Page 3 of 8
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SAMPLE DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C315256 -01
Anuhft
Results
EL119 Hu
EQL
flab
Method Hots
Nitrate as N
021
0 025
010
mg /L
EPA 353 2
Nitrate /Nitrite as N
021
0 041
0,10
mg /L
EPA 353 2
Total Kieldahl Nitrogen
0 46'
J 026
048
mg /L
EPA.351 -2
Client ID: Downstream
Lab ID:
C315256 -02
Analyte
Results'
F1aS MU
EM
Units
Method Notes
Nitrate as N
0.11
0 025
,0.10
mg /L
EPA 353.2
Nitrate /Nitrite as N
Oil
0 041
010
mg /L
EPA 353 2
Total Kieldahl Nitrogen
058
026
048
mg /L
EPA -351 2
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced imfull Page 3 of 8

If
s
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full
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ANALYTICAL RESULTS
Description: Upstream
Lab Sample ID: 015256 -01
Received: 01/06/14 11.30
Matrix: Surface Water
Sampled:01 /06/14 10.30
Work Order: C315256
;Project: Town,of Cary
Sampled By: Kristin Weidner
Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 5911
Analyte rCAS Numberl Results
Flag ][nits,
[E MU pQL Bath
Method
Anahized BY Notes
Nitrate as N [14797- 55 =8]^
0.21
mgA
1 0 025 010 4A13031
EPA 353 2
01/13/14 12.52 CV
Nitrate /Nitrite as N [ECL- 0010]^
0.21
mg /L
1 0 041 010 4AO7007
EPA 353 2
01/07/14 12 11 clv
Nitrite as N [14797- 65 -0]^
0 017
u mg /L
1 0 017 010 4A07004
EPA 3532
01/07/14 09 52 cly
Total Kjeldahl Nitrogen [ECL- 0162]1
0.46
1 mg /L
1 026 0 48 4A10003
EPA 3512
01/13/14 09 50 AIB
Description: Downstream
Lab Sample ID:C315256 -02
Received: 01/06/14 11:30
Matrix: Surface Water
Sampled: 01 /06/14 11:20
Work Order: C315256
Project: Town of Cary
Sampled By: Kristin Weidner
ICIassical Chemistry Parameters
^ - ENCO Cary certified anaW [NC 5911
Anahite rCAS Numberl Results
fin Unjft
ICE MU EQL Batch
Method
Analyzed BY
Nitrate'as N [14797- 55 =8]^
0.11
mg /L
1 0 025 010 4A13031
EPA,353'2
01/13/14 12 52 CV
Nitrate /Nitrite as N [ECL- 0010]^
0.11
mg /L
1 0 041 010 4AO7007
EPA 353 2
01/07/14 12,22 c1v
Nitrite as�N [14797- 65 -0]^
0 017
u mg /L
1 0 017 0'10 4AO7004
EPA 353 2
01/07/14 09 54 clv
Total Kjeldahl,N1trogen1[EC1L- 0162]^
0.58
mg /L
1 026 048 4A10003
EPA 3512
01/13/14 09 52 AIB
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full
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FJVCO
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Spike Source %REC RPD
ARahfie Result Elan POL units Level Bed %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 0 041 U 010 mg /L
WS (4A07007 -BS1) Prepared 01/07/2014 12 07 Analyzed 01/07/2014 12 07
Spike Source %REC RPD
Anal vte Result Elan P91 Units Level Resul %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 13 010 mg /L 125 106 90 -110
Matrix'Spike (4A07007 -MS1) Prepared 01/07/2014 12 13 Analyzed 01/07/2014,12 f3
C315256 -01
Spike Source %REC RPD
Analyte Result Flan PQL Units Level Result %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 073 010 mg /L 0 513 021 102 90 -110
Matrix Spike Dup (4A07007 -MSD1) Prepared 01/07/2014 12 15�Analyzed_.01 /07/2014 12 15
Source: C315256 -01
Spike Source %REC RPD
Anal Result Elan P-01. UIdts Level Result %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 068 010 mg /L 0 513 021 93 90-110 7 10
Batch 4AI0003 - Same
Blank (4A10003 -BLK1) Prepared 01/10/2014 .11,02 Analyzed 01/13/2014 09 39
Spike Source %REC RPD
Analvte Result Flan PGL Units Level Result %REC Limits RPD Limit Notes
Total Kleldahl Nitrogen 026 U 048 mg /L
FINAL This report relates only to the sample as receivedlby the laboratory, and may only be reproduced in full Page 5 of 8
QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch 4AO7004 - NO PREP
Blank (4A07004 -BLK3)
Prepared 01/07/2014,09 47,Analyzed 01/07/2014 09 47
Spike Source %REC
RPD
Anal vtg
Resift Elan
POL
Unib
Level Result 0/bREC Limits, RPD,
Limit Notes
Nitrite as N
.0 017' U
010
mg /L
LCS'(4A07004 -BS1)
Prepared 01/07/2014'09.46 Analyzed 01/07/2014 09 46
Spike Source %REC
RPD
Analtde
Result Elam
POL
Units
Level Result %REC Limits RPD
Limit Notes
Nitnte,as N
098
'010
mg /L
1 -00 98 90 -110
Matrix Spike (4A07004 -MS1)
Prepared 01/07/2014 09 53 Analyzed 01/07/2014,09 53
Source: C315256 -01
Spike Source %REC
RPD
Anal
Resat Ehu
PQL
Units
Level B0sul %REC Limits RPD
Limit Notes
Nitnte'as N
1 0
010
mg /L
100 0 017 U 103 90 -110
„Matrix Spike Dup (4A07004 -MSD3)
Prepared 01/07/201409-54 Analyzed 01/07/2014'09'54,
Source: C315256 -01
Spike Source %REC
RPD
Analyte
Result Elan
POL
Units
Level Result %REC Limits RPD
Limit Notes
Nitnte,as N
10
0 10
mg /L
100 0 017 U 103 90 -110 0 7
10
Batch 4AO7007 - NO PREP
Blank (4A07007 -BLK1)
Prepared 01/07/2014 12 09 Analyzed x01/07/2014'12 09
Spike Source %REC RPD
ARahfie Result Elan POL units Level Bed %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 0 041 U 010 mg /L
WS (4A07007 -BS1) Prepared 01/07/2014 12 07 Analyzed 01/07/2014 12 07
Spike Source %REC RPD
Anal vte Result Elan P91 Units Level Resul %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 13 010 mg /L 125 106 90 -110
Matrix'Spike (4A07007 -MS1) Prepared 01/07/2014 12 13 Analyzed 01/07/2014,12 f3
C315256 -01
Spike Source %REC RPD
Analyte Result Flan PQL Units Level Result %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 073 010 mg /L 0 513 021 102 90 -110
Matrix Spike Dup (4A07007 -MSD1) Prepared 01/07/2014 12 15�Analyzed_.01 /07/2014 12 15
Source: C315256 -01
Spike Source %REC RPD
Anal Result Elan P-01. UIdts Level Result %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 068 010 mg /L 0 513 021 93 90-110 7 10
Batch 4AI0003 - Same
Blank (4A10003 -BLK1) Prepared 01/10/2014 .11,02 Analyzed 01/13/2014 09 39
Spike Source %REC RPD
Analvte Result Flan PGL Units Level Result %REC Limits RPD Limit Notes
Total Kleldahl Nitrogen 026 U 048 mg /L
FINAL This report relates only to the sample as receivedlby 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
,Batch 4410003 =Same - Continued
LCS (4A10003 -BS1) Prepared., 01/10/201,4 11 02.Analyzed ',01/13/2014 09 41
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full Page 6 of 8
Spike Source %REC
RPD
Anallde Resin Flag
P-QL
units
Level Resul %REC Limits RPD
limit, Notes
Total'Kleldahl Nitrogen 13
048
mg /L
120 107 90-110 -
Matrix Spike (4A10003 -MS1)
Prepared 01/10/2014 1102 Analyzed 01/13/2014 09 46
Source: C315769 -01
Spike Source %REC
RPD
Anal Yte Result Elag
M
Units
Level Result %REC limits RPD
limit Notes
Total Kleldahl Nitrogen 54
048
mg /L
4 79 066 100 90 -110
Matrix Spike Dup (4A10003 -MSD1)
Prepared 01/10/2014 1102 Analyzed 01/13/2014 09 48
Source: C315769 -01
Spike Source %REC
RPD
Anal ltfS Result Ebw
PQ.L
units
Level ResulF %REC limits RPD
limit Notes
Total K7eldahl,Nitrogen 5 0
048
mg /L
479 066 90 90 -110 9
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

i
Ce- US
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FLAGS %NOTES'AND DEFINITIONS
1
B The,analyte was?deiected;m the associated method blank.
D Theesarndle,was analyzedAtdilution:
I 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 apolicable.
U Thekanalyte'wassanalyzed,foribut not detected,to,the level shown, adjusted for,actual sample preparation
data and moisture content; where applicable.
E The concentration iridicated`for this analyte,is.an estimated value,above theicalibratioh range of the
instrument. This,-,value is,considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent,to,the practical duantitation limit (PQL)gand is
based,on'the,16W point,of'the calibration curve, whensapplicable, sample preparation, factor, dilution
factor, and; m the case,of,soil samples,`moisture content.
0
FINAL This report relates only to the sample asaecervealby,the` laboratory, and may,only be�reproduced in full ' Page 7 of,8

J
Sample Chain of Custody f=orm
Acct#
ST018
Client
Stantec Consulting, Inc (ST018)
Contact
Brad Fairly
Ship To 801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
Report To 801 Jones Franklin Road, Suite 300
Raleigh, NC 27606
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
r
�,` '.�� `1,r'I.'y• � a•w1H 1k- '�$]�,,. ie i`�t..}�,l^ .vr „' .k J• "'.^ �
La Number DatelCimeSate led m Ie61D 3�i�7R Analyses %Costa +Hers
C315256 -01 '^ : ')� _v - ; „ 4tppstream 5i k `$tl D Analyses Nitrate as N 353 2 , Nitrate Calc 353 2,, Nitrite as N
f 353 2, NOX 353 2, T,KN 351 2
Containers 1 - 250mLP , 1 - 250mLP +H2SO4
C315256 -02 jr �u a .ti . !; 4� , `, yI Downstream C, k'r 1 Analyses Nitrate as N 353 2 , Nitrate Calc,353.2 , Nitrite as N
353 2, NOX 353 2 , TK'N 351 2
Containers 1 - 250mLP , 1 - 250mLP +H2SO4
Sampled By
Condition
Acceptable _Unacceptable
T —Temp Rghnqufst"d Py
By
Date/Time
I //s X1,4,
Date/Time-
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
usel
When filling preserved containers use caution not to Inhale vaporstthat may be caused'in the chemical,reaction between the sample and the � preservatives iCollect samples ima well - ventilated area
or take appropriate precautions to avoid exposure to these fumes See �cautions below pertaining to the handling,of these materials
4
IOs the shippers 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 recelpl at the
laboratory
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 Irva similar manner This bottle contains deionized water only
The information below are PRECAUTIONARY STATEMENTS oNLYI'All potential hazards posed'by these materials have,nofbeemaddressed' For additional linformation,or assistance, please
contact your organization'ssafety professional
Cautions & Abbreviations
HCI' Hydrochlonc Aad -STRONG ACID' Avoid,skm and eye contact If contact Is made, flush affected areas immediately with water
_HNO3 Nitric Acid -STRONG ACID i'STRONG OXIDIZER Avoid skin and eye contact If contact is made, flush affected areas immediately with water
H3PO4 Phosphoric Aad -STRONG ACIDi,Avoid skin and eye contact 'i(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
Zne,c Zinc Acetate -Avoid skin end eye contact If contactis'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
NaOH Sodium, Hydroxide - STRONG'CAUSTIC1 Avoid skimand eye contact, Ificontact is,made „flush affected areas immediately with water
McOH1 Methanol - Avoid skin and eye,contact If contact is made, flush affected areas immediately with water
Page,B of,8

*c wrra
V^ ARM
rw N*- P _
102 -A Woodwinds Industrial Court
Cary NC, 27,511
Phone: [phone] FAX: [phone]
Monday, February 17, 2014
Stantec Consulting, Inc. (ST018)
Attn. Kristin Weidner
801 ]ones 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,
e� 12
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as'recerved by the laboratory, and may only,be reproduced in-full Page 1 of 8

F
0 . �19
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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
EPA 351-2,
Hold Date /Time(sl
03/10/14
Preo Date
02/14/14
/Time(sl Analysis Date/Time(s)
10 17 02/17/14 10 12
EPA 1353'2
02/12/14 1500
02/11/,14
0826 02/11/14 08 26
EPA 853 2
03/10/14
02/11/14
12 58 02/11/14 12.58
EPA 353 2
11/05/16
02/17/14
1022 02/17/14 �10 36
Client ID: Downstream
LabID:� C400187 -02
Sampled: 02/10/14 13:45 Received: 02/10/14 15:15
Parameter
EPA 3512
Hold Date/Time(s)
03/10/14
Prep Date
02/14/14
/Time(sl Analysis, Date /Time(s)
10 17 02/17/14 10 14
EPA 353 2
02/12/14 1345
02/11/14
0829 02/11/14 08 29
EPA 353 2
03/10/14
02/11/14
1305 02/11/14 13 05
EPA 353 2
11/05/16
02/17/14
1022 02/17/14 10 36
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced,m full Page 2 of 8

� CAW
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r
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full Page 3 of 8
SAMPLE DETECTION'SUMMARY
ClienbID: Upstream
Lab ID:
C400187 -01
Ana!>lle
Results
Bag
HU
PQL
Ueits
Note i
Nitrate as N
0 054
1
0 025
010
mg /L
EPA 353 2
Nitrate /Nitrite as N
0 054
1
0 041
010
mg /L
EPA 353 2
Client ID: Downstream
Lab ID:
C400187 -02
Ana
Results
Ellis
MU
EQL
!!nil
Method Notes
Nitrate as N
0 041
1
0 025
010
mg /L
EPA 353 2
Nitrate /Nitrite as N
0 041
J
0.041,
010
mg/L.
EPA 353 2
Total Kieldahl Nitrogen
075
026
048
mg /L
EPA351 2
r
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full Page 3 of 8

A
(a �O
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CANAL "YTICAL, RESU LTS
Description: Upstream
Lab,54mple ID:C400187-1)1
Received: 02/,10/14 -15:15
Matrix:, Surface Water
Sampled: 02/10%14 15.00
Work Order: C400187
Project: Town of Cary
Sampled By: KristinVeldner
i
Classical Chemistry Parameters
^`- ENCO Cary certified analyte [NC 5911
Anahrte rCAS Numberl Westilta
El i9
Units
pF MDL &L Batch
Method
Anadiaed ]ly Notes,
Nitrate as N;[14797- 55 -8]A
0.054
J
mg /L
1 0 025` '0 °10' 4617019
EPA 3532
02/17/14 1036 CV
Nitrate /Nitrite as NJECL- 0010]A
0.054
1
mg /L
1 0 041 0110 4811006
EPA 353 2
"02/11/1412 58 Clv'
Nitnte -as N [34797- 65 -0]^
0'01-7
U
mg /L
1 01017 0`,10 4BI1004
EPA 353 2
02/11/14,08 26 Clv
Total K7eldaiif Nitrogen l[ECL- 0162]^
026,
U
mg /L
1 0.26, 0 148, 4B14662
EPA 351,2
02/17/14 10.12, Clv'
Description: Downstream
Lab'SampleID:C400187 -02
Received: 02/10/,14,15.15'
Matrix: Surface'Water
Sampled: 02 /,10/14 13.45
Work Order:'C400187
Project: Town of Cary
Sampled By9'Kristin Weidner
Classical Chemistry Parameters
^- ENCO Cary Certified ana/yre'[NC 5911
Anahrte rCAS Numberl Reiidlts
flog,
YAM
RE MU M Batch
'Method
ft Notes
Nitrate as N,[14797-55 -8]^
0:041
J
mg /L
1 0 025 0110` 4B17019
EPA 353-2
02/17/1410 36 Cv
Nitrate %Nitrite as N [ECL- 0030]A
0:041
I
mg /L°
1 0 041 040 4B11006
EPA 353 2
02/11/14E1305 Clv
Nitrite asA [14797- 65 -0]A
0.017
U,
mg /L
1 0'017' 010 4611004
EPA 353 2
02/11/114 08 29 Clv
Total KjeldahlrNitragen [ECL- 0162]^
OJ5
mg /L
1 0 26 048, 4814002
EPA 3512
02/17/14`5014 c1G
f
FINAL This report relates only to the sample asnceived byAhe laboratory, and`may only tie iepio uced4n full Page 4 of 8

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QUALITY CONTROL DATA
Classical, Chemistry Parameters- Quality Control
Batch 4B11004 - NO PREP
Blank (4B13004 -BLKI) Prepared 02/11%2014 0825,Anaiyzed :02/11/2014 08 25
Spike Source %REC RPD
Analltte Result Flan P9L Units Level Result %REC Limits RPD Limit Notes
Nitrite as N 0 017 U 0-10 mg /L
LCS (4B11004 -BS1) Prepared 02/11/2014 08 20 Analyzed 02/11/2014 08 20
Blank (4531006 -BLK1) Prepared 02/11/2014 12.48 Analyzed 02/11/2014 12 48
Spike Source � %REC RPD
Anal lde Resul Ela9 PQL Units Level Result %REC Limits RPD Limit, Notes
Nitrate /Nitrde,as N 0 041 U 010 mg /L
LCS (4B11006 -BS1) Prepared, 02/11/2014 12 45�Analyzed 02/11/2014 12 45
Spike Source %REC
Spike Source %REC
RPD
Anal Result Has
RQL
Units
Level Result %REC Limits RPD
Limit Notes
Nitrite as N 098
010
mg /L
100 98 90 -110
Prepared 02/11/2014 14 31 Analyzed 02/11/201414 31
Matrix Spike (4B11004 -MS1)
Source: 0309972 -01RE3
Prepared 02/11/2014 08 27 Analyzed 02/11/2014 08 27
Source: C400187 -01
Spike Source %REC
RPD
Anal be
Result Elm POL
Spike Source %REC
RPD
Spike Source %REC
RPD
Anal ldiH Result Elau
PQL
Units
Level Result %REC Limits RPD
Limit Notes
Nitrite as N 10
010
mg /L
100 0 017 U 102 90 -110
Matrix Spike Dup (4811004 -MSD1)
Prepared 02/11/2014 08 28 Analyzed 02/11/2014 08 28
Source: C400187 -01
Spike Source %REC
RPD
Anal Result E104
PQL
units.
Level Result %REC Limits RPD
Limit Notes
Nitrite as,N 10
0 10
mg /L
100 0 017 U 105 90 -110 2
10
Batch 4011006 - NO PREP
Blank (4531006 -BLK1) Prepared 02/11/2014 12.48 Analyzed 02/11/2014 12 48
Spike Source � %REC RPD
Anal lde Resul Ela9 PQL Units Level Result %REC Limits RPD Limit, Notes
Nitrate /Nitrde,as N 0 041 U 010 mg /L
LCS (4B11006 -BS1) Prepared, 02/11/2014 12 45�Analyzed 02/11/2014 12 45
Source: C309972 -01RE1
Spike Source %REC
RPD
Anallde Result
Elan PQL
Units Level Result %REC Limits RPD
Limit Notes
Nitrate /Nitrite as N 1.3
010
mg /L 1 -25 108, 90 -110
10 QM -05
Matrix Spike (4831006 -MS1)
Prepared 02/11/2014 14 31 Analyzed 02/11/201414 31
Source: 0309972 -01RE3
Prepared 02/14/2014 10 17,Analyzed 02/17/2014 09 59
Spike Source %REC
RPD
Anal be
Result Elm POL
Spike Source %REC
RPD
Anande Result
Eka PQL
Units Level Result %REC Limits RPD
Limit Notes
Nitrate /Nitrite as N 23
2 0
mg /L 100 11 117 90 -110
QM-'05
Matrix Spike Dup (4611006 -MSDi)
Prepared 02/11/2014 14 32 Analyzed 02/11/2014 14 32
Source: C309972 -01RE1
FINAL This report relates only to the sample as received by,the laboratory; and may only be reproduced in full Page 5 of 8
Spike Source %REC
RPD
Anal
Result Flan QQL
Units Level Result %REC Limits RPD
Lima Notes
_ Nitrate /Nitrite as N
22 20
mg /L 100 11 113 90 -110 2
10 QM -05
Batch 4014002 - Same
Blank (41314002 -BLK1)
Prepared 02/14/2014 10 17,Analyzed 02/17/2014 09 59
Spike Source %REC
RPD
Anal be
Result Elm POL
Units Level Result %REC Limits RPD
Lima Notes
Total Kleldahl Nitrogen
026 U 048
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

h
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QUALITY CO111TROL DATA,
Classical_Chemistry Parameters - Quality Control
Balch 4814002 - Same - Continued
LCS (4814002 -M) Prepared 02/14/2014 10 17 Analyzed 02/17/2014 10 01
Source: C400084 -01
Analyte
Total.K7eldahl Nitrogen
FINAL
Spike Source
Result Elan PQL Units Level Sesult
62 048 mg/L. 479 13
%REC
%REC Limits RPD
103 90 -110 6
Th&report relates;only to the,sample as received by the laboratory, andimay only be reproduced in full
RPD
Limit Notes
10
Page 6 of,8
r
Spike
Source %REC
RPD
Analyze Result
Elan PGL
Units Level
Result %REC Limits RPD
Limit Notes
Total Kjeldahl'Nitrogen 12
048
mg /L 120
98 90 -110
Matrix Spike (4B14002 -MS3)
Prepared
g02 /14/2014,10 17 Analyzed 02117/2014,10 05
Source: C400084-01
Spike
Source %REC
RPD
Anal Result
Elsa POL
Units Level
Result %REC Limuts RPD
Limit Notes
Total Kleldahl Nitrogen 59
048
mg /L 479
13 96 90 -110
Matrix Spike Dup (4814002 -MSDi)
Prepared 02/14/2014 10 17 Analyzed 02/17/2014 10 08
Source: C400084 -01
Analyte
Total.K7eldahl Nitrogen
FINAL
Spike Source
Result Elan PQL Units Level Sesult
62 048 mg/L. 479 13
%REC
%REC Limits RPD
103 90 -110 6
Th&report relates;only to the,sample as received by the laboratory, andimay only be reproduced in full
RPD
Limit Notes
10
Page 6 of,8
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QM-'05
www.encolabs.com
FLAGS /NOTES AND DEFINITIONS '
The analyte was detected In the associated method blank.
The sample was analyzed -at.dllutlon.
The reported,value is between theJaboratory method detection limiti(MDL)iand the'laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
The analyte was analyzed for but not detected to the level shown, adjusted for actual sample,preparation
data and moisture content, where applicable. -
The concentration Indicated for this analyte Is an estimated value above the calibration range of the
Instrument. This value is considered an estimate.
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 prepa ration, factor, dilution
factor, and, In,the case of soil samples, moisture content.
The spike recove yTwas?outside,acceptance limits for the MS and /or MSD dueito)matrix
Interference. The, LCS and /or LCSD were within acceptance limits showing that the laboratory m
In control and the,data Is,acceptable.
FINAL This report relates only to the sample as recerved[6y the laboratory, and may only be reproduced in full _ Page 7 of 8

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IW-COLaboratonles,
Accurate. Timely. Responsive. Innovative.
10VA WoodwindsAndustrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Thursday, May 15, 2014
Stantec'Consulting, Inc. (ST018)
Attn: Kristin Weidner
801 ]ones 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, pleaseAo not hesitate -to contact me.
Sincerely,
Link Thrower
Project Manager
Enclosure(s)
FINAL This report relates only to the sample,as received by thebboratory„and may only be reproduced in full Page 1,of 8
1

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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID:- C401553 -01
Sampled: 05/08114 08:54 'Received: 05/08/14 10:00
Parameter
EPA 3512
Hold Date /Time(s)
06/05/14
Preo Date
05/09/14
/Time(s) Analysis Date /Time(s)
1011 05/12/14 09 34
EPA, 353 2
05/10/14 08:54,
05/09/14
07.21 05/09/14 08 55
EM 353 "2
06/05/14
05/08/14
1253 05/08/14 12 53
'EPA 353 2
01/31117
05/14/14
1334 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
EPA 3512
Hold Date /Time(s)
06/05/14
Prei Date
05/09/14
/Time(s) Analysis Date /Time(s)
1011 05/12/14 09 36
EPA-353 2
05/10/14 0940
05/09/14
0721 05/09/14 09 00
EPA 353 2
06/05/14
05/08/1,4
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

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9 �G 9
www.encolabs.com
FINAL This report relates only to the sample as received by the laboratory; and,may only be reproducedim full Page 3 of 8
SAMPLE`DETECTION SUMMARY
Client ID: Upstream
Lab ID:
C401553 -01
ADalyte
Bgsults
EhM Mu
EQL
Notes
Nitrate as N
Oil
0 025
010
mg /L
EPA 353 2
Nitrate /Nitrite as N r
Oil
0 041
010
mg %L
EPA 353 2
Total Kjeldahl Nitrogen
062
026
048
mg /L-
EPA 3512
Client ID: Downstream
Lab ID:f
C401553 -02
Ate'
Bli11115
894 HU
EQL
unb
Method Notes
Nitrate as N
015
0 025
010
mg /L
EPA 353 2
Nitrate /Nitrite as N
015
0 041
010
mg /L
EPA 353 2
Total Kjeldahl Nitrogen
094
026
048
mg /L
EPA 3512
FINAL This report relates only to the sample as received by the laboratory; and,may only be reproducedim full Page 3 of 8

CM 0-)
Ilk Ce i WS, www.encolabs.com
ANALYTICAL RESULTS
Description: Upstream Lab Sample,ID:C401553`01 Received: 05/08/14 10 00
Matrix: Surface Water Sampled: 05 /08/14 08.54 Work Order: C401553
Project: Town of Cary Sampled By: Knsbn Weidner
FINAL, This,reporf relates only to the sample as received by the laboratory, and,may only be reproduced in full Page 4 of 8
Classical Chemistry Parameters
^ - ENCO Cary certified anaW [NC 5911
Analyte rCAS Numberl Rest
flag
un tt4
]E
]DL
PQL,
latch
Method
Analyzed
RY Notes
Nitrate as N [14797- 55 -8] A
0.11
mg /L
1
0 025
010
4E14039
EPA 353 2
05/14/14 1,4o6
CV
Nitrate /Nitrite as N [ECL- 0010]A
0.11
mg %L
1
0041
0 10
4E08003
EPA 353 2
05/08/14 12 53
Clv
Nitrite as N [14797- 65 -0]A
0 017
U
mg /L
1
0 017
010
4EO9002
EPA 353 2
05/09/14 08 55
Clv
Total Kjeldahl Nitrogen [ECL- 0162]A
0.62
mg /L
1
026
048-
4EO9003
EPX351 2
05/12/14 09 34
Clv
Description: Downstream
Lab Sample ID:C401553 =02
Received: 05/08/14 10 00
Matrix: Surface Water
Sampled: 05
/08/14 09.40
Work Order: C401553
Project: Town of,Cary
Sampled By: Kristin Weidner
ICIassical Chemistry Parameters
^ - ENCO Cary certified analyle [NC 5911
Analvte fCAS Numberl
fin
Units
pF
Mal.
E46
Batch
Method
Analyzed
!3Y Notes
Nitrate as N [14797- 55 -8]A
0.15
mg /L
1
0 025
- 0 10
4E14039
EPA 353 2
05/14/14 14 00
CV
Nitrate /Nitrite as�N [ECL- 0010]A
0.15
mg /L
1
0 041
010
4EO8003
EPA 353 2
05/08/14 12 55
Clv
Nitnte as N [14797- 65 -0]A
0 017
U
mg /L
1
0 017
0 10
4EO9002
EPA 353 2
05/09/14 09 00
clv
Total Kjeldahl Nitrogen [ECL- 0162]A
0.94
mg /L
1
026
048
4EO9003
EPA 3512
05/12/14 09 36
clv
FINAL, This,reporf relates only to the sample as received by the laboratory, and,may only be reproduced in full Page 4 of 8

Caco
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QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch 4EO9003 - NO PREP
Blank (4E08003 -BLK3) Prepared 05/08/2014 12 44 Analyzed 05/08/2014 12 44
Spike Source %REC RPD
Analyte Result Elan P91 Units Level Result %REC Limits RPD !shit Notes
Nitrate /Nitrite as N 0 041 U 010 mg /L
LCS (4E08003 -BSI) Prepared 05/08/2014 12 42 Analyzed 05/08/2014 12 42
Blank,(4E09002 -BLK3)
Spike Source ?/oREC
RPD
Prepared 05/09/201,4 07 21 Analyzed 05/09/2014 08 54
Anal vie Result
Elan QQL
Units
Level Result " /oREC bjmjts RPD
LimR
Notes
Nitrate /Nitrite as N 13
010
mg /L
125 102 90 -110
Elan
RQL
Matrix Spike (4E08003 -MS3)
Level gilt %REC Limits RPD
Ljpijt Notes
Prepared 05/08/2014 12 49 Analyzed 05/08/2014 12 49
0 017
U
Source: C404317 -01
mg /L
LCS (4E09002 -BS1)
Spike Source '%REC
RPD
AnalYte Result'
Elm PAL
Units
Level Befit %REC Limes RPD
Llmlt
Notes
Nitrate /Nitrite as N 026
0 10
mg /L
0 513 0.14 23 90 -110
Units
QM -05
Matrix Spike, Dup (4E08003 -MSD1)
Ndnte as N
098
Prepared 05/08/2014 12.51 Analyzed 05/08/2014 12 51'
010
mg /L
Source: C404517 -01
LCS (4E09002 -BS2)
r
Prepared 05/09/2014 07 21 Analyzed 05/09/2014 08 59
Spike Source %REC
RPD
Anande Result
Ela9 EM
Units
Level Result %REC Limits RPD,
>imit,
Notes
Nitrate /Nitrite as N N 030
0 10
mg /L
0 513 014 33 90 -110 17
10
QM -05,
097
0 10
mg /L
100 97 90 -110
QM -11
Batch 4EO9002 - NO PREP
Matrix Spike (4E09002 -MS3)
Blank,(4E09002 -BLK3)
Prepared 05/09/201,4 07 21 Analyzed 05/09/2014 08 54
Spike Source %REC
RPD
Anal.Yte
Result
Elan
RQL
Uniu
Level gilt %REC Limits RPD
Ljpijt Notes
Nitrite as N
0 017
U
010
mg /L
LCS (4E09002 -BS1)
Prepared 05/09/2014907 21 Analyzed 05/09/2014 08 19
Spike Source %REC
RPD
Anal lde
Result
Elan
PQL
Units
Level Besyyjt %REC Limft RPD
Limi Notes
Ndnte as N
098
010
mg /L
100 98 90 =110
LCS (4E09002 -BS2)
Prepared 05/09/2014 07 21 Analyzed 05/09/2014 08 59
Spike Source %REC
RPD
Analyte
Result
Elao
POL
Units
Level Result " /oREC blMft - RPD
wit Notes
Nitrite as,N
097
0 10
mg /L
100 97 90 -110
Matrix Spike (4E09002 -MS3)
Prepared. 05/09/2014 07 21 Analyzed. 05%09/2014 08 56
Source: C401553 -01
Spike Source %REC
RPD
Ana L1d&
Result
Ela9
ML
Unit£
Level Rat %REC Limits RPD
Limit Notes
Nitrite as N
096
010
mg /L
100 0 017 U 96 90410
Matnx Spike Dup (4E09002 -MSD3)
Prepared 05/09/2014,07 21 Analyzed 05/09/2014 08 58
Source: C401553 -01
Spike Source %REC'
RPD
Analltte
Result
Elm
P4L
Units
Level Result %REC Limits RPD
Limit Notes
Nltnte as N
099
010
mg /L
100 0 017 U 99 90 -110 3
10
Batch 4EO9003 - Same
FINAL This report relates only to the sample as recerved�by the laboratory, and may only be reproduced in full Page 5 of 8

III
r III
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QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch 4EO9003 - Same - Continued
Blank (4E09003- BLKS), Prepared 105/09/2014 10 11,Analyzed 05/12/2014 09 23
Spike Source %REC RPD
AnalYte Result Elm P91 Units Level Result %REC Lititz RPD Limit Notes
Total K7eldahl Nitrogen 026 U 048 mg /L
LCS (4E09003 -BS1) Prepared 05/09/2014 10 11 Analyzed 05/12/2014 09 25
Source:, C403749 -02
Anal1te
Total Kleldahl Nitrogen
FINAL
Spike Source OAREC
Result Elan ka Units Level Result %REC Limits RPD
10 048 mg /L 479 58 93 90 -110 4
This,report relates only to the sample as received by the laboratory, and may only be reproduced in full
RPD
4imm 1Y9teST
10
Page 6 of 8
Spike 'Source %REC
RPD
Result
Elan POL
Units Level Rii911 %REC 611i11tj, RPD,
bi0lit Notes
Total Kjeldahl Nitrogen 12
0`48
mg /L, 120 102 90 -110
Matrix Spike'(4E09003 -,MS1)
Prepared 05/09/2014 10 11 Analyzed 05/12/2014 09 30
Source: C403749-02
Spike Source %REC
RPD
Analyte 'Reasilt
Elm P9l
Units Level Resul 0/nREC Limits RPD
limit Notes
Total K7eldahl Nitrogen 11
048
mg /L 4 79 5.8 102 90 -110
Matrix Spike Dup (4E09003 -MSD1)
Prepared 05/09/2014 10 11 Analyzed 05/12/2014 09 32
Source:, C403749 -02
Anal1te
Total Kleldahl Nitrogen
FINAL
Spike Source OAREC
Result Elan ka Units Level Result %REC Limits RPD
10 048 mg /L 479 58 93 90 -110 4
This,report relates only to the sample as received by the laboratory, and may only be reproduced in full
RPD
4imm 1Y9teST
10
Page 6 of 8

a
CS NOS go ii
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FLAGS /NOTESAND DEFINITIONS
8 The analyte was detected in the associated method blank.
D The sample was analyzed atidilution.
] 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 T,he,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 quantitatiom limit (PQQ 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 whichithere 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 L'CS 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 Tof 8

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ENCO Laboratories
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
ProjectAumber: 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, ,alFsamples 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 projecf 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'bereported 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 Iabofatory, and may only be reproduced in full Page 1 of 8
40

I
cia M141 CEO
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SAMPLE SUMMARY/ LABORATORY CHRONICLE
Client ID: Upstream
Lab ID: C405688 -01
Sampled: 07/16/14 09:20 Received: 07/16/14 11:38
Parameter
EPA 3512
Hald Date %Time(s)
08/13/14
Prep Date
07/17/14
/Time(s) Analysis, Date /Time(s)
1034 07/21/14 09 13
EPA 353 2
07/18/14 0920
07/16/14
1324 07/16/14 17 00
EPA 353.2
08/13/14
07/18/14
1044 07/18/14 16 36
EPA 353`2
04/10/17
07/21/14
1219 07121114 12 39
Client ID: Downstream
LabIDe C405688 -02
Sampled: 07/16/1410:40 Received: 07/16/14 11:38
Parameter
EPA 3512
Hold Date /Time(s)
08/13/14
Prep Date
07/17/14
/Time(s) Analysis Date /Time(s)
-1034 07/21/14 09 15
EPA 353 2
07/18/14 10'40
07/16/14
1324 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

a r
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i
l
FINAL This report relates only to the sample as recerved'by,the laboratory, and may,only be reproduced;m full Page 3 of 8
SAMPLE DETECTIOWSUMMARY
Client ID: Upstream
Lab ID:
C405688 -01
Anehtte
Results
Elea Hu
P9L
l XIM
Method Notes
Nitrate as N
013
0 025
0 10
mg /L
EPA 353'2
Nitrate /Nitrite as N
013
0 041
010
mg /L
EPA, 353 2,
Total K7eldahl Nitrogen
10
026
048
mg /L
EPA 3512
Client ID: Downstream
Lab,ID:
C405688 -02,
Anshdu
Results
Ells Hu
M
Units
Method Notes
Nltnte as;N
0 019
J 0 017
010
mg /L
EPA 3532
Total K7eldahl Nitrogen
068
026
048
mg /L
EPA 3512
i
l
FINAL This report relates only to the sample as recerved'by,the laboratory, and may,only be reproduced;m full Page 3 of 8

e
F
O
J
FINAL This report relates only to the sample as received by the laboratory, and,may only be reproduced in full
Page 4 of 8
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ANALYTICAL RESULTS
Description:, Upstream
Lab Sample ID:C405688 -01
Received: 07/16/14 11.38
Matrix: Surface Water
Sampled: 07/16/14 09:20
Work Order: C405688
Project: Town of Cary
Sampled By:Alex Baldwin
Classical Chemistry Parameters
^ - ENCO Cary certified ana/yfe'[NC 591]
Analvte rCAS'Numberl Results
Hag Unil4
RE MU PQ6 latch
Method
Aged dotes
Nitrate as N [14797- 55 -8]^
0.13
mg /L
1 0 025 010 4G21018
EPA 353 2
07/21/14 12 39 CV
Nitrate /Nitrite as N [ECL- 0010]^
0.13
mg /L
1 0 041 0110 4G18017
EPA 353.2
07/18/14,16 36 clv
Nitrite as N [14797- 65 -0]^
0'017
U mg /L
1 0 017 010 4616036
EPA 3532
07/16/14 17 00 AIB
'Total Kteldahl Nitrogem[ECL- 0162]^
1.0
mg /L
1 0 26 0 48' 41317005
EPA 3512
07/21/1409 13 civ
Description: Downstream
Lab Sample ID:C405688 -02
Received: 07/16/14 11:38
Matrix: Surface Water
Sampled: 07 /16/14 10:40
Work Order: C405688
Project: Town of Cary
Sampled By:Alex Baldwin
Classical Chemistry Parameters
^ - ENCO Cary certified anayte [NC 5911
Anahrte rCAS Numberl Results
Pleg ' Mau
2f MBL PQL Adtsh
Method
Analyzed 1310 Notes
Nitrate as N [14797- 55 -8]^-
0 025
U mg /L
1 0 025 010 4G21018
EPA 353 2
07/21/14 12 39 CV
Nitrate /Nitrite as N [ECL- 0010]^
0 041
U mg /L
1 0 041 010 4G18017
EPA 353 2'
07/18/14`16 47 ciG
NitriteavN [14797-65 -0]^
0.019
]' mg /L
1 0 017 0-10 4616036
EPA 353 2
07/16/14rl7 04 A313
Total,Kjeldahl Nitrogen,[ECL- 0162]^
0.68
mg /L
1 0 26 048 4617005
EPA 3512
07/21/14 09 15 Civ
J
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
mi (0111Lc ®
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QUALITY CONTROL DATA
Classical Chemistry parameters— Quality Control
Batch 4GIO036 - NO PREP
Blank (4G16036 -BLK1) Prepared 07/16/2014 13 24 Analyzed 07/16/2014 16 59
Spike Source %REC RPD
Anal Result Elm POL Units Level gait %REC Limits RPD Limit, dotes
,Nitrite as N 0 017 U1 010 mg /L
LCS (4G36036 -BS1) Prepared 07/16/2014 13 24,Analyzed 07/16/2614 16 58
Source: C405688 -01
Analyte
Nitrite as N
Batch 4617005 - Same
Result Elan D L
094
010
Spike Source %REC RPD
pmts Level Result %REC LlMits RPD limit Notes
mg /L 100 0 017 U 194 90 -110 09 10
Blank (4G17005 -BLK1) Prepared 07/1-7/2014 10 34 Analyzed 07/21/2014 09 01
Spike Source %REC RPD
Anallde Result Ela9 PQL Units Level Result %REC Limits RPD Limit dotes
Total K3eldahl Nitrogen 026 U 048 mg /L
LCS (4G17005 -BS3) Prepared 07/17/2014 10 34 Analyzed 07/21/2014 09 04
Spike Source %REC
RPD
Anal Result Elan
RQL
!!nits
Level Sept %REC Limits RPD
Limit Notes
Nitrite as N 096
010
mg %L
1.00 96 90 -110,
Matrix Spike (4G36036 -MS1)
Prepared 07/16/2014 13 24 Analyzed 07/16/2014 17 01
Source: C405688 -01
Spike Source 0 /.REC
RPD
Anal Result Elan
PQL
Units
Level gilt %REC Limits RPD
Limit Notes
Nitrite as N 093
0 10
mg /L
100 0 017 U 93 90 -110
Matrix Spike Dup (41316036 -MSD3)
Matrix Spike Dup (4G17005 -MSD1)
Prepared 07/16/2014 13 24 Analyzed 07/16/2014,17 03
Prepared 07/17/2014 10 34 Analyzed 07/21/2014 09 10
Source: C405688 -01
Analyte
Nitrite as N
Batch 4617005 - Same
Result Elan D L
094
010
Spike Source %REC RPD
pmts Level Result %REC LlMits RPD limit Notes
mg /L 100 0 017 U 194 90 -110 09 10
Blank (4G17005 -BLK1) Prepared 07/1-7/2014 10 34 Analyzed 07/21/2014 09 01
Spike Source %REC RPD
Anallde Result Ela9 PQL Units Level Result %REC Limits RPD Limit dotes
Total K3eldahl Nitrogen 026 U 048 mg /L
LCS (4G17005 -BS3) Prepared 07/17/2014 10 34 Analyzed 07/21/2014 09 04
Blank (4G18017 -BLK1) Prepared 07/18/2014 10 44 Analyzed 07/18/2014 16 34
Spike Source %REC RPD
Anal1te Result Mw FOL units Level Resul %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 0 041 U 010 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
Spike Source %REC
RPD
Anallde, Result
Flag P-QL
Units
Level gesul , 'o /nREC Limits RPD
Lima Notes
Total K3eldahl Nitrogen 12
048
mg /L
120 104 90 -110
Matrix Spike (4G1700S -MS1)
Prepared 07/17/2014 10 34 Analyzed 07/21/2014 09 08
Source: C406835 -01
Spike Source %REC
"RPD
Analyte Result
Elan P91
Units
Level Resul %REC Limits RPD
Limit Notes
Total K3eldahl Nitrogen 57
048
mg /L,
4_79 058 107 90 -1110
Matrix Spike Dup (4G17005 -MSD1)
Prepared 07/17/2014 10 34 Analyzed 07/21/2014 09 10
Source: C406835 -01
Spike Source %REC
RPD
Anal ide Result
Elsa P9L
Units
Level gel %REC Limits RPD
Limit !votes
Total K3eldahl Nitrogen °5 6
048
mg /L
479 058 104 90 -110 3
10
Batch 4G15017 - NO PREP
Blank (4G18017 -BLK1) Prepared 07/18/2014 10 44 Analyzed 07/18/2014 16 34
Spike Source %REC RPD
Anal1te Result Mw FOL units Level Resul %REC Limits RPD Limit Notes
Nitrate /Nitrite as N 0 041 U 010 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

a
0•
QUALITY CONTROL DATA
Parameters - Ouality Control
www.encolabs.com
Batch 4618017 - NO PREP - Continued
LCS,(4G18017 -BS1) Prepared 07/18/2014 10 44 Analyzed 07/18/2014,16 32
Source: C405688 -01
Analvte
Nitrate /Nitrite as N
FINAL
Spike Source
Result Ela9 P41 Units Level Result
062 010 mg /L 0.513 013
w
%REC
%REC Limits
96 90 -110
This report relates only to the sample as received by the laboratory, and may only be reproduced m full
RPD
RPD. blmlt Notes
2 10
Page 6,of 8
Spike Source ?%REC
RPD
AnalYte Result Elan
PGL
�Units Level Resulh %REC Limits RPD
Lima Notes
Nitrate /Nitrite as N 13
010
mg /L 125 102 90 -110
Matrix Spike (4G18017 -MS1)
Prepared 07%18/2014 10.44,Analyzed 07/18/2014 16.39
Source: C405688 -01
Spike Source %REC
RPD
�nalr� Result Elaa
POL
Units Level Result %REC Limits RPD
Limit Notes
Nitrate /Nitrite as N 064
010
mg /L 0 513 0 13 98 90 -110
Matrix, Spike'Dup'(4G18017 -MSD1)
Prepared W /18/2014 10 44 Analyzed 07/18/2014 1641
Source: C405688 -01
Analvte
Nitrate /Nitrite as N
FINAL
Spike Source
Result Ela9 P41 Units Level Result
062 010 mg /L 0.513 013
w
%REC
%REC Limits
96 90 -110
This report relates only to the sample as received by the laboratory, and may only be reproduced m full
RPD
RPD. blmlt Notes
2 10
Page 6,of 8

�EO 5
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FLAGS /NOTES AND DEFINITIONS
B
The analyte wasAetected In the associated method blank.
D
The sample was,analyzed'at dilution.
7
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 notdetected'to the level shown,,ad]usted 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 ".
J
FINAL This report relates oniy,to the sample as received by the laboratory, and may only,be reproduced m'full , Page,7 of 8

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