NCG030251_Emails RE ROS and Tier Relief Cont with Report_20210913

Georgoulias, Bethany
From: Reed, Isaiah L
Sent: Monday, September 13, 2021 10:30 AM
To: Greg Kanellis
Cc: Crosby, Tiffany; Matt Bramblett; Aiken, Stan E; Smith, Mike M; Granger, T. Mack;
Georgoulias, Bethany; McCoy, Suzanne
Subject: RE: [External] Watts Water Technologies - Spindale, NC: Tiered Relief and
Representative Outfall Status Request
Attachments: Watts Spindale BG and RO Report 20210910.pdf
Mr. Kanellis,
Your request has been received. I am no longer with the Division of Energy, Mineral and Land Resources, but I am
copying the appropriate Regional and Central Office Staff on this email, who will follow up on your request.
I apologize for the confusion.
Isaiah
Isaiah Reed, Ell, CPSWQ, MS4CEC1
Asheville Regional Office — Environmental Engineer
Division of Water Resources — Public Water Supply
North Carolina Department of Environmental Quality
828-296-4581 office
828-545-3024 mobile
[e-mail]
2090 U.S. Highway 70
Swannanoa, NC 28778
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties.
From: Greg Kanellis <[e-mail]>
Sent: Friday, September 10, 2021 4:02 PM
To: Reed, Isaiah L <[e-mail]>
Cc: Crosby, Tiffany <[e-mail]>; Matt Bramblett <[e-mail]>
Subject: [External] Watts Water Technologies - Spindale, NC: Tiered Relief and Representative Outfall Status Request
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Mr. Reed,
As you previously discussed with Tiffany Crosby of Watts Water Technologies (WWT) and Matt Bramblett of Hart &
Hickman (H&H), please find the attached letter requesting the reinstatement of the Tiered Relief and Representative
Outfall Status for the WWT site in Spindale, NC. Please let us know if you have any questions or would like to discuss.
Best regards,

Greg Kanellis, PE, Project Manager
Hart & Hickman, PC
3921 Sunset Ridge Rd, Ste 301 • Raleigh, NC 27607
Direct: 919-723-2512 • Mobile: [phone]
www.harthickman.com I U 0

Via Email
September 10, 2021
NC Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
2090 US 70 Highway
Swannanoa, NC 28778
Attn: Mr. Isaiah Reed
Re: Tier Relief and
Representative Outfall Request
Watts Water Technologies
Spindale, NC
H&H Project No. WWT-009
Dear Isaiah:
hart hickman
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1.0 Introduction and Background
Hart & Hickman, PC (H&H) is providing this letter to request reinstatement of the tier relief and
representative outfall status (ROS) for the Watts Water Technologies (Watts) facility in
Spindale, NC (Figure 1). The Watts facility was previously in Tier 3 status for metals in 2015
under the National Pollutant Discharge Elimination System (NPDES) Stormwater Permit
(NCG030251). Samples from representative Stormwater Drainage Outfalls 001, 002, 004, and
006 for the Watts facility previously indicated levels of copper and zinc above 2012 NPDES
permit benchmarks for multiple sampling periods, putting the Watts facility under Tier 3 status
for zinc and/or copper at Outfalls 001, 002, 004, and 006.
Watts engaged H&H to evaluate the stormwater metal detections and to improve stormwater
management for the facility. H&H recommended three key action items which included the
placement of stormwater filter socks, addition of limestone riprap in high flow areas to raise the
pH, and improvement in the grass coverage density for soil surface stabilization. Watts
implemented these recommendations, and stormwater metal concentrations (copper, lead and
zinc) significantly decreased based on the October 2015 monthly sampling event, which
2923 South Tryon Street, Suite 100 3921 Sunset Ridge Rd, Suite 301
Charlotte, NC 28203 Raleigh, NC 27607 www.harthickman.com
704.586.0007 main 919.847.4241 main

Mr. Isaiah Reed
September 10, 2021
Page 2
represented the first stormwater sampling event after these recommendations had been fully
implemented. These decreases were sustained in subsequent sampling events, though zinc
and/or copper continued to exceed 2012 NPDES permit benchmarks for Outfalls 001, 002, 004,
and 006. The limestone riprap remains and the filter socks continue to be maintained to improve
stormwater quality.
Based on these results and the common occurrence of these metals in stormwater, H&H
suspected background sources of these metals to be contributing to the collected stormwater
samples. Samples were collected from the roof and road runoff during a storm event on October
27, 2015. Relatively high levels of copper, lead, and zinc were found in these samples. These
results were reported to the North Carolina Division of Energy, Mineral and Land Resources
(NC DEMLR) by H&H in a letter dated November 24, 2015. Elevated metals were confirmed in
additional background samples collected November 18, 2015, as submitted with the Discharge
Monitoring Report (DMR) dated December 29, 2015.
On January 27, 2016, an inspector from the North Carolina Department of Environmental
Quality (NCDEQ) visited the site at Watts' request to evaluate NPDES permit compliance.
Though the inspection confirmed exceedances of copper and zinc at the sampled outfalls, the
inspector indicated that background sources may be influencing the outfalls, and temporarily
reduced tiered sampling to a semi-annual frequency. Additionally, the inspector noted that
Outfall 2 is the only outfall representative of the Watts site without being impacted by off -site
background sources. The inspector requested additional background sampling to confirm the
initial sampling results. Two additional background sampling events were conducted on April 1,
2016, and April 22, 2016. Results from these sampling events were reported to NC DEMLR by
H&H in a letter dated August 24, 2016. Details of the sampling events can be found in Sections 2
and 3 below. As a result of this letter and the ROS Request Form submitted therein, NC DEMLR
granted the Watts facility tiered sampling relief and authorized Outfall 002 as the representative
outfall for the facility in a letter dated December 30, 2016. The requirements of this tiered relief
and ROS approval were semi-annual qualitative analysis for all facility outfalls but sampling of
14
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https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Watts Water Technologies - WWT/WWT-009 Stormwater Spindale 2021/Tiered Reliefand ROS
Request/Watts Stormwater Background.docx

Mr. Isaiah Reed
September 10, 2021
Page 3
only Outfall 002 in accordance with the general stormwater permit.
On August 25, 2020, a routine Compliance Evaluation Inspection (CEI) was conducted by DEQ
at the Watts facility. The facility was determined to be in compliance with the general
stormwater permit; however, the tier relief and ROS were rescinded. The inspection summary
indicated that a request to reinstate these conditions would need to be submitted for evaluation
once the pending new NPDES general permit was issued. This letter serves as a request to
reinstate these conditions for the Watts facility for the new NPDES general stormwater permit.
2.0 Prior Background Sampling Results
Watts previously collected background stormwater samples from two locations on the roof and
two locations on Watts Road, an adjacent road which partially drains into the Watts property
upgradient of Outfalls 001, 003, 004, 005, 006, and 007. These background sample locations
were sampled during four separate storm events, including samples on October 27, 2015,
November 18, 2015, April 1, 2016, and April 22, 2016. The outfall data were collected after the
completion of the stormwater management improvements in October 2015. Additional details
on background sample results are provided below.
2.1 Road Runoff Results
Outfalls 001, 002, 004, and 006 were previously monitored for metal concentrations. Among
these outfalls, only Outfall 002 has a low probability of runoff from Watts Road contributing to
the collected stormwater sample. Furthermore, the lowest metal concentrations in outfall
samples were generally found in Outfall 002. As such, Watts Road was investigated as a
potential contributor to metals detected at the outfalls on -site. Two locations were selected to
sample runoff from Watts Road. Road Run Off — 01 DC was taken from the south side of Watts
Road across from the distribution center, near Outfall 007. Road Run Off — 02 DR was taken
from the south side of Watts Road across from the Watts facility, near Outfall 002. Copper (up
hart hickman
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Request/Watts Stormwater Background.docx

Mr. Isaiah Reed
September 10, 2021
Page 4
to 0.438 mg/L) was found in every road runoff sample at concentrations exceeding the 2012
NPDES permit benchmark (0.007 mg/L) and all of the road runoff samples at concentrations
exceeding the 2021 NPDES permit benchmark (0.010 mg/L) except the sample Road Run Off —
01 DC collected October 27, 2015. Zinc (up to 0.224 mg/L) was detected at concentrations
exceeding the 2012 NPDES permit benchmark (0.067 mg/L) in five of the eight background
samples and exceeding the 2021 NPDES permit benchmark (0.126 mg/L) in two of the eight
background samples. Lead (0.0524 mg/L) was also detected in the October 27, 2015 Road Run
Off-02 sample at a concentration exceeding the 2012 NPDES permit benchmark (0.030 mg/L)
but not the 2021 NPDES permit benchmark (0.075 mg/L). These background samples indicate
that the runoff from Watts Road is contributing to the detected metal concentrations at the
outfalls.
2.2 Roof Runoff Results
As buildings on -site take up a considerable portion of the overall area, the runoff from the
building roofs was sampled for metals. Two sampling points were selected to monitor the roof
runoff on -site. Both samples were collected from the roof of the Drains Department of the Watts
site. Roof Drain #1 Dock was collected from over the loading dock for the Drains Department
warehouse, and Roof Drain #2 Evap was collected from over the out of service evaporator room
within the Drains Department warehouse. The roof samples were found to contain copper (up to
0.221 mg/L), lead (up to 0.0692 mg/L), and zinc (up to 1.89 mg/L). Copper was found in every
roof runoff sample at concentrations exceeding the 2012 NPDES permit benchmark and all of
the roof runoff samples at concentrations exceeding the 2021 NPDES permit benchmark except
the sample Roof Drain #1 Dock collected November 18, 2015. Every roof runoff sample except
the Roof Drain #1 Dock sample collected on April 22, 2016 contained zinc at concentrations
exceeding the 2012 and 2021 NPDES permit benchmarks. Lead was detected above the 2012
NPDES permit benchmark in every Roof Drain #2 Evap sample except on April 1, 2016
sampling event. The April 1, 2016 Roof Drain #1 Dock sample contained lead above the 2012
NPDES permit benchmark. Neither of the roof runoff samples contained lead concentrations
14
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https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Watts Water Technologies - WWT/WWT-009 Stormwater Spindale 2021/Tiered Reliefand ROS
Request/Watts Stormwater Background.docx

Mr. Isaiah Reed
September 10, 2021
Page 5
above the 2021 NPDES permit benchmark.
To identify the potential source of these metals in the roof runoff, Watts checked the coating
materials used on the roof, as well as the material of the roof, vents, and other structures. The
roof vents are galvanized, and the drains spouts are electroplated with a white metal. These
materials may be contributing to the metals detected in the runoff samples. Additionally, Watts
stated that a reflective white roof sealant known as Kool Seal has been used in select roof
locations. A study published in 2008 analyzed the potential for a variety of roofing materials,
including Kool Seal, to leach metals (Appendix B). It was reported that Kool Seal has the
potential to leach copper, lead, and zinc at low levels. In addition, storage trailers parked on -site
also have galvanized roofs and siding that may be contributing similarly to metals at the outfalls.
The roof runoff samples indicate that the roofs on -site are made of typical materials and are still
contributing to the metal exceedances at the outfalls for the Watts site.
Due to the presence of metals in the roof runoff, annual roof inspections were incorporated into
the facility SWPPP to identify any degraded materials and to repair or resurface degraded areas
if necessary.
2.3 Direct Rainfall Results
Two direct rainfall samples were collected concurrent with the two background sampling events
in April 2016. The first rainfall sample was collected in close proximity to a galvanized fence,
which may have influenced the metal concentrations detected within the sample. This sample
was found to contain levels of zinc (2.27 mg/L) and copper (0.0176 mg/L). These concentrations
exceed 2012 and 2021 NPDES benchmarks. As the zinc concentration is significantly greater
than the outfall concentrations, H&H believes that these data provide runoff data for the
galvanized fence rather than the direct rainfall. This supports the conclusion that the galvanized
surfaces are contributing zinc and copper to the stormwater onsite.
hart hickman
SMARTER ENVIRONMENTAL SOLUTIONS
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Watts Water Technologies - WWT/WWT-009 Stormwater Spindale 2021/Tiered Reliefand ROS
Request/Watts Stormwater Background.docx

Mr. Isaiah Reed
September 10, 2021
Page 6
The second rainfall sample was taken from within a parking lot on -site, unaffected by runoff
from the galvanized fence. Even so, it was found to contain elevated levels of copper (0.158
mg/L) and zinc (0.35 mg/L) above the 2012 and 2021 NPDES permit benchmarks. This
supports the conclusion that background levels of copper and zinc in rainfall are influencing the
outfall concentrations.
3.0 Representative Outfall Status
The Watts facility currently monitors stormwater discharge visually at Outfalls 001, 003, 004,
005, 006, and 007, and analytically at Outfall 002. Outfalls 001, 004, and 006 are impacted by
runoff from Watts Road, which has been shown to contain metals at concentrations in excess of
the NPDES permit benchmarks, which affects the reported concentrations at the outfalls. Due to
its isolation from the Watts Road runoff and its drainage area being representative of site
operations and potential pollutant sources, Outfall 002 has been determined as the most
representative outfall for the site and the use of Outfall 002 as the single representative outfall
was approved by NC DEMLR in 2016.
Outfall 002 drains a portion of the main eastern building on the Watts site. Other than light
assembly, manufacturing no longer occurs on -site, and the primary activity is warehousing.
Warehouse operations are similar across the entire site such that a single outfall is representative.
The portion of the Watts facility which drains to Outfall 002 includes a portion of the building
roof, a parking area where galvanized roof trailers may be stored, and a loading dock. The
drainage basin for Outfall 002 is representative of the entire Watts facility. H&H is requesting
that DEMLR reinstate the approval Outfall 002 as the single representative outfall for analytical
monitoring. A ROS Request Form is included as Appendix C.
4.0 Summary
In 2016, the Watts facility implemented improved stormwater management practices which
14
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Mr. Isaiah Reed
September 10, 2021
Page 7
reduced the metals discharged at the outfalls on -site, though zinc and copper continued to exceed
the low NPDES permit benchmarks. In order to identify whether background sources may be
contributing to these elevated concentrations, multiple background sampling events were
conducted to investigate the influence of runoff from Watts Road, the roof of buildings on -site,
and direct rainfall. On average, the copper, lead, and zinc concentrations in these background
samples were greater than those recorded at the outfalls. Among the background samples, the
roof runoff samples showed the highest average metal concentrations. These elevated
concentrations may be due to the roof coating, runoff from galvanized vents, or interaction with
the metal roof drains.
With the improvement of stormwater management at the Watts facility starting in 2015, and the
likelihood of current permit benchmark exceedances to be caused by background sources rather
than industrial activity, H&H on behalf of Watts is respectfully requesting that the Spindale
facility be reinstated under Tier I status. Additionally, H&H is respectfully requesting
reinstatement of Outfall 002 as the single representative outfall for the Spindale facility.
Should you have any questions or need any additional information, please feel free to contact us.
Sincerely,
Hart & Hickman, PC
Matt Bramblett, PE
Principal Engineer
Attachments
Cc: Mr. Brad Bowen, Watts (via email)
Ms. Tiffany Crosby, Watts (via email)
Af
y Z1.0
Gregory Kanellis, PE
Project Manager
hart hickman
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https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Watts Water Technologies - WWT/WWT-009 Stormwater Spindale 2021/Tiered Reliefand ROS
Request/Watts Stormwater Background.docx

Table 1
Background Stormwater Data
Watts Water Technologies
Spindale, NC
H&H Job No. WWT-009
Sample Location
Road Run Off-01 DC
Road Run Off-02 DR
Roof Drain #1 Dock
Roof Drain #2 Evap
Direct
Rainfall #1
Direct
Rainfall #2
Background
Average
NPDES Permit
NPDES Permit
Benchmark
Date
10/27/15 11/18/16
4/1/16
4/22/16
10/27/15 11/18/16
1 4/1/16
1 4/22/16
10/27/15
11/18/16
1 4/1/16
4/22/16
10/27/15
11/18/16
1 4/1/16
4/22/16
4/1/16
4/22/16
10/27/15 to 4/1/16
Benchmark (2012)
2021
Units
m /L
m /L
m /L
m /L
m /L
m /L
m /L
m /L
m /L
Metals 200.7
Copper
0.0081
0.0164
0.0163
0.0426
1 0.438
0.0710
0.0151
0.116
0.0120
0.0099
0.221
0.0104
0.205
0.107
0.0442
0.160
0.0176
0.158
0.093
0.007
0.010
Lead
<0.005
<0.005
<0.005
0.0067
0.0524
<0.005
<0.005
0.6064
<0.005
<0.005
0.0692
1
<0.005
0.0512
0.0476
0.0227
0.0429
<0.005
0.0242
0.019
0.030
0.075
Zinc
0.0469
0.0964
0.0638
0.119
0.178
0.0698
0.0295
0.224
0.338
0.229
0.356
1 0.0469
1.890
0.759
0.197
0.260
2.270
0.350
0.418
0.067
0.126
Note:
Data collected after two days with approximately 0.2 inches of rain per day
Non -detects averaged at 1/2 of the reporting limit
Shaded indicates exceedance of benchmark in the NCG030000 general stormwater permit effective November 1, 2012
Bold and Italics indicate exceedance of benchmark in the NCG030000 general stormwater permit effective July 1, 2021
Table 1, Page 1 of 1
File: https://harthick.sharepointcom/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Watts Water Technologies - WWT/WWT-009 Stormwater Spindale 2021[Fiered Relief and ROS Request/Background SW Table 1
Date:8/19/2021 Hart & Hickman, PC

Table 1
Background Stormwater Data
Watts Water Technologies
Spindale, NC
H&H Job No. WWT-009
Sample Location
Road Run Off-01 DC
Road Run Off-02 DR
Roof Drain #1 Dock
Roof Drain #2 Evap
Direct
Rainfall #1
Direct
Rainfall #2
Background
Average
NPDES Permit
NPDES Permit
Benchmark
Date
10/27/15 11/18/16
4/1/16
4/22/16
10/27/15 11/18/16
1 4/1/16
1 4/22/16
10/27/15
11/18/16
1 4/1/16
4/22/16
10/27/15
11/18/16
1 4/1/16
4/22/16
4/1/16
4/22/16
10/27/15 to 4/1/16
Benchmark (2012)
2021
Units
m /L
m /L
m /L
m /L
m /L
m /L
m /L
m /L
m /L
Metals 200.7
Copper
0.0081
0.0164
0.0163
0.0426
1 0.438
0.0710
0.0151
0.116
0.0120
0.0099
0.221
0.0104
0.205
0.107
0.0442
0.160
0.0176
0.158
0.093
0.007
0.010
Lead
<0.005
<0.005
<0.005
0.0067
0.0524
<0.005
<0.005
0.6064
<0.005
<0.005
0.0692
1
<0.005
0.0512
0.0476
0.0227
0.0429
<0.005
0.0242
0.019
0.030
0.075
Zinc
0.0469
0.0964
0.0638
0.119
0.178
0.0698
0.0295
0.224
0.338
0.229
0.356
1 0.0469
1.890
0.759
0.197
0.260
2.270
0.350
0.418
0.067
0.126
Note:
Data collected after two days with approximately 0.2 inches of rain per day
Non -detects averaged at 1/2 of the reporting limit
Shaded indicates exceedance of benchmark in the NCG030000 general stormwater permit effective November 1, 2012
Bold and Italics indicate exceedance of benchmark in the NCG030000 general stormwater permit effective July 1, 2021
Table 1, Page 1 of 1
File: https://harthick.sharepointcom/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Watts Water Technologies - WWT/WWT-009 Stormwater Spindale 2021[Fiered Relief and ROS Request/Background SW Table 1
Date:8/19/2021 Hart & Hickman, PC

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DRAINAGE AREA AND OUTFALL CHARACTERISTICS
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LONGITUDE
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DA-1
N 35- 21' 01"/
4.1
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W 81° 54' 39"
SDO-002
DA-2
N 35° 21' 01"/
1.4
80
W 81° 54' 44"
SDO-003
DA-3
N 35° 21' 01"/
2.3
80
W 81° 54' 47"
N 35° 21' 02"/
SDO-004
DA-4
W 81° 54' 49"
4.0
90
SDO-005
DA-5
N 350 21' 02"/
2.0
80
W 81° 54' 51"
SDO-006
DA-6
N 350 21' 03"/
5.4
90
W 81° 54' 55"
OQ
SDO-007
DA-7
N 35° 21' 03"/
3.0
75
W 81° 54' 58"
VISUAL ONLY
NITORING PO
SDO-004
VISUAL ONLY
LEGEND
— - - _
SITE PROPERTY BOUNDARY
--g_
SURFACE WATER FLOW
RIP- RAP
ADJACENT PROPERTY BOUNDARY O
DRUM STORAGE AREA
OUTFACE MONITORING POINT
NOTES:
DA-4- — — DRAINAGE AREA -->-->-
STORMWATER DRAINAGE DITCH
Q BACKGROUND SAMPLE LOCATION
1.
ALL FEATURE LOCATIONS ARE APPROXIMATE.
T RAILROAD TRACKS
INLET TO CORRUGATED
UNDERGROUND PIPE —1044—
TOPOGRAPHIC CONTOUR (FT MSC)
2.
DRAINAGE &DRAINAGE AREAS BASED ON URS
BASE MAP.
FD-j DUMPSTER
RIP RAP SWALE
3.
RECEIVING WATERS: BRACKETTS CREEK (CLASS
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STORMWATER DRAINAGE PIPE
C; NOT IMPAIRED)
®® DRAINAGE INLET
■
STORMWATER PIPE TO SURFACE
4.
OUTFALL SDO-002 IS PROPOSED TO BE
REPRESENTATIVE OF THE REMAINING OUTFALLS.
LOADING AREA
-
FILTER SOCKS (APPROXIMATE)
Fp
SDO-003
VISUAL ONLY
& ANALYTICAL
SDO-001
VISUAL ONLY
MONITORING POINT
1
DRAINAGE AREAS, OUTFALLS, BMPs, AND
BACKGROUND SAMPLE LOCATIONS
�3rdFcr
WATTS WATER TECHNOLOGIES
N
SPINDALE, NORTH CAROLINA
APPROXIMATE
120 240
2923 South Tryon Street -Suite 100
hart ^• h i c k m a n Charlotte, North Carolina 28203
•
SCALE IN FEET
704-586-0007(p)704-586-0373(f
SMARTER ENVIRONMENTAL SOLUTIONS License # C-1269 / #C-245 Geology
DATE: 8-17-21
REVISION NO. 0
JOB NO. WWT-009
FIGURE NO. 1

0.450
0.400
0.350
0.300
0.250
J
to
E
0.200
0.150
0.100
0.050
0.000
Figure 2
Metals Concentration in Stormwater
Watts Water Technologies
Spindale, NC
H&H Job No. WWT-004
Copper Lead Zinc
Outfall data collected on October 27, 2015, November 18, 2015, December 22, 2015, and January 8, 2016
Background data collected on October 27, 2015, November 18, 2015, April 1, 2016, and April 22, 2016
Background Average
Outfall Average

APPENDIX A
ROOFING MATERIALS STUDY

Roofing Materials' Contributions to Storm -Water
Runoff Pollution
Shirley E. Clark, P.E. D.WRE, M.ASCE1; Kelly A. Steele, A.M.ASCE2; Julia Spicher, A.M.ASCE3;
Christina Y. S. Siu4; Melinda M. Lalor5; Robert Pitt, P.E. D.WRE, M.ASCE6; and
Jason T. Kirby, A.M.ASCE7
Abstract: Development in sensitive watersheds continues to pose environmental problems for receiving waters. One contributor to this
long-term pollution is building and other construction materials. However, the long-term effect of many building materials on the
environment has not been quantified due to limited testing of these materials prior to sales and installation. Laboratory "leach" testing of
commercially available roofing materials by this research group indicated that the potential for release (primarily nutrients, lighter
hydrocarbons, pesticides, and metals) is substantial. Testing of metals' release from aged roofing panels also has shown that the potential
for pollutant release still exists after 60 years. The data missing from a complete evaluation of many roofing materials is behavior over the
lifespan of the material, including the critical period of initial exposure. The 2 years of runoff data from a pilot -scale testing of these
materials indicated substantial concerns regarding zinc from uncoated galvanized metals and copper from treated woods in this early part
of the materials' lifespan, plus the potential for long-term nutrient releases in the runoff from several roofing types.
DOI: 10.1061/(ASCE)0733-9437(2008)134:5(638)
CE Database subject headings: Stormwater management; Water management; Runoff; Water pollution; Roofs; Leaching;
Construction materials.
Introduction
Urban runoff has been identified as a major contributor to the
degradation of many urban streams, rivers, and estuaries (Burton
and Pitt 2002, which includes an extensive literature review).
Using the Microtox acute toxicity testing procedure, Pitt et al.
(1995) investigated the toxicity of source -specific urban wet
'Assistant Professor of Environmental Engineering, School of
Science, Engineering and Technology, Penn State Harrisburg, 777
W. Harrisburg Pike TL-105, Middletown, PA 17057 (corresponding
author). E-mail: [e-mail]
2Engineering Technician, Dawood, Inc., 2020 Good Hope Rd., Enola,
PA 17025; formerly, Project Engineer, Navarro and Wright Consulting
Engineers, Inc., 151 Reno Ave., New Cumberland, PA 17070. E-mail:
[e-mail]
3Environmental Engineer, Greeley and Hansen, Inc., 1818 Market
St., Ste. 3400, Philadelphia, PA 19103-3613. E-mail: jspicher@greeley-
hansen.com
4Research Scientist, School of Science, Engineering and Technology,
Penn State Harrisburg, 777 W. Harrisburg Pike TL-123, Middletown,
PA 17057. E-mail: [e-mail]
5Associate Dean, School of Engineering, Univ. of Alabama at
Birmingham, 1075 13th St. S., Birmingham, AL 35294. E-mail: mlalor@
uab.edu
6Cudworth Professor of Urban Water Systems, Dept. of Civil,
Construction and Environmental Engineering, Univ. of Alabama,
Tuscaloosa, AL 35487-0205. E-mail: [e-mail]
Assistant Professor, Univ. of Alabama at Birmingham, 1075 13th St.
South, Room 140, Birmingham, AL 35294. E-mail: [e-mail]
Note. Discussion open until March 1, 2009. Separate discussions must
be submitted for individual papers. The manuscript for this paper was
submitted for review and possible publication on June 28, 2007; approved
on January 28, 2008. This paper is part of the Journal of Irrigation and
Drainage Engineering, Vol. 134, No. 5, October 1, 2008. OASCE, ISSN
0733-9437/2008/5-638-645/$25.00.
weather flows. Roofs, storage areas, streets, and loading docks
had the highest frequency of moderately toxic and highly toxic
runoff samples. Runoff from roofs and paved surfaces had the
greatest organic toxicant detection frequencies and the highest
levels of detected metals. Boller (1997) found roof runoff to con-
tain not only heavy metals, but polycyclic aromatic hydrocarbons
(PAHs) and organic halogens as well. In addition to the well
known component materials in roofing and pavements, seemingly
unrelated compounds have been added to improve performance
and durability, and these compounds could be the source of many
pollutants detected in the runoff.
Based on a review of the literature, other building materials of
concern included concrete, paints, and exposed wood/pressure
treated wood. A summary of the literature on concrete and asphalt
paving can be found in Clark et al. (2002). For paint, the concerns
reported were lead and other metals incorporated into the paint
itself (Davis and Burns 1999). In New Zealand, limits were
placed on the heavy metal content of paints applied to metal
construction materials, such as roofs, as an environmental barrier
(Kingette Mitchell Ltd. and Diffuse Sources Ltd. 2003). This use
of paint as an environmental barrier was, for example, a practice
that occurred on a site in the western United States to reduce the
zinc release from galvanized metal roofing.
A summary of the literature on roofing (both surface covers
and materials used as subbases such as treated wood) is presented
in Table 1. The older field studies in the table inferred the differ-
ences in roofing's pollutant contributions by analyzing runoff
from nearby roofs made from different materials, using small
areas where atmospheric contributions could be assumed to be
similar. Newer studies directly or indirectly measured atmo-
spheric contributions in order to isolate the materials' contribu-
tions. In addition to the research projects that reported runoff
concentrations, others investigated the effects of these materials
638 / JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING O ASCE / SEPTEMBER/OCTOBER 2008
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Table 1. Roof Runoff Analysis —Literature Summary
Roof type
Location
Analytes
Cu
(µg/L)
Zn
(µg/L)
Pb
(µg/L)
Cd
(µg/L)
As
(µg/L)
pH
NH4
(mg/L)
NO3
(mg/L)
Reference
Polyester
Duebendorf, Switzerland
6,817
2,076
510
3.1
Boller (1997)
Tile
1,905
360
172
2.1
Flat gravel
140
36
22
0.2
Plywood w/ roof paper/tar
Washington
166T/ 128D
877T/909D
11T/ < 5 D
4.3
Good (1993)
Rusty galv. metal
5.9
4.8
Old metal w/Al paint
20T/2D
12,200T/I1,900D
302T/35D
4.1
Flat tar surface w/fibrous reflective Al paint
11T/7D
1,980T/1,61OD
10T/ <5D
5.9
New anodized Al
25T/14D
297T/257D
10T15D
16T/7D
101T/82D
15T/ < 5D
Zinc-galv. Fe
Dunedin City, New Zealand
560 µg/g
5,901 µg/g
670 µg/g
Brown and Peake (2006)
Fe—Zn sheets
Ile-Ife, Nigeria
6.77
0.06
1.52
Adeniyi and Olabanji (2005)
Concrete slate tiles
7.45
0.05
3.34
Asbestos cement sheets
7.09
0.06
2.26
Aluminum sheets
6.68
0.05
6.18
Cu panels
Munich, Germany
200-11,100
6.7-7.0
Athanasiadis et al. (2006)
Galvanized metals (primarily Galvalume)
Seattle, Wash.
10-1,400
420-14,700
ND
Tobiason et al. (2004)
CCA wood
Florida
1,200-1,800
Khan et al. (2006)
Untreated wood
2-3
Note: Fraction of metal: D=dissolved, T=total; ND=not detected.
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on receiving waters and biota. Bailey et al. (1999) investigated
the toxicity to juvenile rainbow trout of runoff from British Co-
lumbia sawmills and found that much of the toxicity may have
been a result of divalent cations, in particular, zinc from galva-
nized roofs. Other sources of toxicity included tannins and lignins
from the woods. Lebow et al. (1999) tested chromated-copper-
arsenate (CCA) treated wood in seawater and deionized water and
found that the steady-state release rate of copper was much
greater in seawater than in deionized water (vice versa for ar-
senic). Seawater testing may be indicative of material behavior
when exposed to salt -laced rainwater in the winter.
Stormwater runoff in a ditch water near pentachlorophenol
(PCP) treated utility poles had chlorophenol concentrations 1.8
times the 96-h LC50 (lethal concentration for 50% of the salmonid
test organisms) (Stranks 1976). As these studies showed, preser-
vative release during storms from CCA and other preserved
woods was sufficiently high to be implicated in these toxicity
studies. These materials, therefore, have to be of concern in the
environment since they are used as subbase for roofing, as eaves
or, in the case of cedar, as a roofing material itself.
Wallinder et al. (2007) and Van Assche et al. (2003) modeled
worldwide copper and zinc runoff rates, respectively, based on
runoff rates and concentrations reported in the literature, in addi-
tion to laboratory testing on degradation. These results, in com-
bination with the runoff concentrations reported in Table 1,
indicated that roofing has the potential to be a significant pollutant
source in the urban environment, where roofing covers a substan-
tial fraction of the landscape.
What cannot be determined from the prior roofing runoff stud-
ies and the Table 1 results is the contribution to toxicity and
runoff pollutant concentrations from the various roofing materials
themselves versus contributions from atmospheric deposition.
The literature very strongly suggests that these materials contrib-
ute to increased runoff pollutant concentrations. This is evident
especially when nearby roofs of different compositions produce
vastly different runoff concentrations. To address the concerns
about pollutant release in the field from common construction
materials, laboratory "leaching" studies (Pitt et al. 1999; Clark
2000) were performed. The results indicated that the potential
existed for many construction materials to release pollutants into
the environment. Concerns about the environmental impacts of
roofing led to the development of newer materials. However,
these newer materials do not have readily available results show-
ing both their short-term and long-term pollutant contributions to
urban runoff.
This ongoing research project examined a variety of roofing
materials (including subbase materials such as treated and un-
treated woods and roofing felts, which may be exposed both dur-
ing roof installation and after damage to the roof) to determine
their long-term pollutant release after typical installation and ex-
posure to the weather. The goal was to develop a better under-
standing of how aging and exposure processes impacted the
temporal release of pollutants to runoff which, eventually, should
translate into a model of pollutant release over the material's life
cycle.
Methodology
This research consisted of two parts: (1) a laboratory leaching
study of test coupons (including a simulated runoff event on aged
roofing sections, described below); and (2) a 2-year (to date),
pilot -scale field study in Pennsylvania. The project focused on
roofing and subbase materials commonly used in the roofing in-
dustry. The categories of materials investigated during the
laboratory -scale survey included the following:
1. Roofing materials (galvanized metal, asphalt/tar shingles,
cedar shingles, plastic/vinyl/fiberglass roofing panels, fake
slate roofing, and roofing sealers); and
2. Woods [one (2 X 4) treated with CCA, another (2 X 4) with
an alternative waterproofing compound (modified copper
combination), and one untreated wood].
The materials, with two exceptions, were purchased from Lowes
Home Improvement Stores in Birmingham, Ala., for the labora-
tory studies, and in Harrisburg, Pa., for the field studies. The aged
metal roofing panels (-60 years old), used in laboratory studies
only, were obtained from a barn in Lancaster County, Pa. One
panel was on the roof for the entire time and was rusted. The
second panel was stored in the barn as a replacement and still had
its paint intact. Besides the paint, which likely contained lead, it
was unknown whether the panels were subjected to other coating
treatments like zinc oxide. The appearance of the panels was
similar to galvanized metal. The results from testing these older
materials guided the experimental design for the field studies,
particularly in terms of monitoring program length.
Laboratory "Leaching" Studies
The laboratory tests were performed in 2002 using a modified
toxicity characteristic leaching procedure (TCLP) test. This test
simulated the exposure of a material or waste to acidic environ-
mental conditions. The two modifications to the USEPA-
prescribed test were the weight of material (approximately
100-200 g) and the length of exposure [48 h for these tests, using
Leachant Solution I —the more aggressive, lower pH leachant.
The pH of Leachant 1 was approximately 0.5 pH units lower than
the acidic rainwater measured at the Penn State Harrisburg (PSH)
site]. The resulting leachate for each material (triplicate samples
for each material) was analyzed for the following constituents:
pH, conductivity, chemical oxygen demand (COD), semivolatile
organics, pesticides, heavy metals, major cations, and nutrients.
The analytical methodologies were described in Clark et al.
(2005) and conformed to methods outlined by EPA or Standard
Methods (APHA 1995). The aged roofing panels were analyzed in
2004 using the "leaching" protocols described above, as well as
being subjected to a synthetic rainfall applied with a spray bottle
over the surface of the material. The formula for the simulated
rainwater was from Davis and Burns (1999). The runoff and the
original rainwater were analyzed using EPA Method 200.9, with
the rainwater concentrations subtracted from the runoff results to
obtain the contributions from the materials themselves. For these
panels, heavy metals were the only pollutants of interest.
Pilot -Scale Field Testing
Two sites in the eastern United States were selected for the field
tests based on climatic differences: the southern site was at the
University of Alabama -Birmingham (UAB), while the mid -
Atlantic site was at PSH. These two sites occur in two EPA rain-
fall zones (PSH: Zone 1; UAB: Zone 3) and two different rainfall
pH zones (from USGS data, PSH: 4.3-4.5; UAB: >4.8). The
roofing materials (whole panels: 1.22 m X 2.44 m, shingles at-
tached in sheet rows as prescribed by the manufacturer) were
attached to A frames, with slopes similar to those used in residen-
tial pitched roofs (Fig. 1 shows the test setup at PSH). Construc-
tion was completed and testing began at PSH in the summer of
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Fig. 1. Roofing setup at PSH field site
2005. At UAB, roofing panels and frames were reconstructed in
the spring of 2007 as a result of prior hurricane damage. The test
panels were placed on each campus in areas with no overhead
canopy to obstruct rainfall onto the panels. Installation techniques
and fasteners, including spacing of fasteners, matched those used
by roofers to the maximum extent practicable. The panels were
left covered until just before the first monitored rain event. The
field results portion of this paper focused on the PSH site data
since the UAB evaluation recently was restarted. For the PSH
site, samples were collected for every storm for the first 2 months,
with periodic sampling thereafter.
The field testing evaluated the following materials (manufac-
turer information provided where available from the store):
• Plexiglass (as a control to quantify and background subtract
atmospheric deposition);
• Plytanium plywood [untreated and pressure -treated (CCA)];
• Severe -weather pressure treated/water sealed planks;
• Cedar shakes;
• Roofing felt/tar paper-30 lb. (United Roofing Mfg.);
• Asphalt fiberglass shingles (Supreme Owens Corning 3-tab
[25-year limited warranty] treated for 10-year algae resis-
tance);
• Rubberized roofing material (similar to the layer on a built-up
roof);
• Galvanized aluminum, corrugated;
• 55% aluminum -zinc alloy coated steel (Galvalume)—
prepainted;
• Asphalt impregnated organic fiber panel (Ondura 2002), cor-
rugated; and
• Polyvinyl chloride panel, corrugated.
Analytes included pH (including periodic direct measurement of
rainfall by pH meter in beaker of rainfall collected during a storm;
the pH was measured as soon as sufficient rainwater was col-
lected to submerge the probe tip), specific conductance, COD,
nutrients, and heavy metals. These parameters were analyzed
using the methods described in Clark et al. (2005), except for
metals which were analyzed, after nitric -acid digestion, by graph-
ite furnace/atomic absorption spectrophotometry (GFAA)
(Perkin-Elmer Zeeman 5100, Perkin-Elmer) in accordance with
EPA Method 200.9.
Results and Discussion
Laboratory "Leaching" and Simulated Runoff Tests
The results from the modified TCLP test were used to indicate if
a pollutant "existed" in the material, and whether, over time, it
might be released to the environment. The organic data indicated
very little potential contributions of specific semivolatile organics
(highest leachate concentration=315 µg/L of bis(2-ethylhexyl)
phthalate, a common plasticizer, in roofing felt). The lack of el-
evated bis(2-ethylhexyl) phthalate concentrations in other
samples indicated that this result likely was not due to environ-
mental contamination of the samples, but to dissolution of the felt
paper in the leachant solution.
For the nutrients and metals, all samples were run in triplicate
and the results averaged after background subtraction of the initial
leachant solution concentration. These results are shown in Table
2. Even though each subsample was cut from the same intact
panel of material, the heterogeneity of the materials themselves
was reflected in the high variability seen in the data (in many
cases, coefficients of variation were 2.0 or greater). Therefore,
these comparisons were not made based on absolute values of the
median concentration, but on general observations made from the
data. The results from the nutrient testing showed release of ni-
trate and phosphate to the leachate, especially of phosphate from
the galvanized metal. A review of hot -dip and cold galvanizing
process information available online from several manufacturers
indicated that phosphorus may be an ingredient in some binders
and some wash solutions. The metals' results also showed that
significant potential exists for metals to be leached from these
materials as they degrade. This was expected for certain materi-
als, such as the galvanized metal, the shingles, the treated wood,
and several sealers that listed one or more metals as ingredients
since certain metals were added as a protective coating or impreg-
nated in the exposed surface of the material. Table 2 results high-
light the reservoir of pollutants potentially available for release
during storm events.
The leach testing indicated the "size" of the pollutant reservoir
in new materials, but did not address the potential of aged roofing
to release pollutants. Two aged (60+year old), painted metal roof-
ing panels were evaluated using both leach testing and simulated
rainfall. One panel was exposed to the atmosphere since installa-
tion and was rusted across approximately 75% of the surface area,
while the other was an intact replacement panel. The panels were
subjected to the following tests: (1) a dissolution test in which an
approximate 100 g piece of the panel was submerged in concen-
trated nitric acid; (2) a leaching test (approximately 100 g) similar
to the previously discussed laboratory work; and (3) a simulated
rain exposure test. While these exact material formulations cur-
rently may not be available, these results were used to develop the
field testing plan and to determine if an "end date" may exist in
the pollutant release.
The lead results showed that releases from the aged panels
were between 0.01 and 1 g/kg for the dissolution and leaching
tests (not shown). Prior to testing, it was thought that lead would
result mostly from what was likely lead paint. However, the test-
ing on the bare metal (the nonrusted portion) showed lead con-
centrations equivalent to that of the painted metal, indicating two
potential causes: (1) lead was a component of the metal roofing
panel itself; or (2) lead was deposited on the bare metal surface
and "contaminated" the bare roofing. Unlike copper and iron, lead
also was released from the material during "rain."
The results for zinc are shown in Fig. 2 as a comparison be-
tween the results in the "leach" tests described above and simu-
lated rain. The 2002 leach test results were designated as
"pristine" panels since they were purchased less than 1 month
before testing. The results indicated that substantial quantities
were released from the material during both the dissolution and
leaching tests. It also was apparent that "raining" on the material
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Table 2. Laboratory Leaching of Building Materialsa
PO4 NO3 NH3-N COD Cu Pb Zn Fe
Material (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg)
Asphalt/tar shingles
29.4 (0.5)
1.52 (0.4)
0.83 (0.8)
2,698 (0.4)
0.66 (1.1)
0.34 (0.5)
1.22 (0.3)
46.7 (0.2)
Roofing felt
44.6 (0.245)
4.2 (1.7)
108 (0.9)
26,367 (0.9)
0.026 (2.4)
0.11 (0.2)
0(0.05)
1.87 (0.4)
Ondura red vinyl roofing
0 (na)b
2.44 (2.4)
1.44 (0.4)
13,161 (0.6)
0 (na)b
0 (na)b
0 (na)b
0 (na)b
Fiberglass roofing
0.86 (1.7)
0 (na)b
0 (na)b
0(0.9)
0.017 (2.0)
0.005 (4.2)
0.53 (0.9)
0 (na)b
White plastic roofing
0 (na)b
0.99 (1.7)
0 (na)b
6,842 (0.5)
0.076 (0.4)
0 (na)b
1.42 (0.1)
2(0.7)
Cedar roofing shingles
1.23 (1.0)
0 (na)b
0(0.7)
18,852 (0.6)
0.033 (1.1)
0.11 (0.4)
0.64 (1.2)
1.64 (0.3)
Galvanized metal roofing
53.8 (1.2)
58.4 (0.3)
12.1 (0.2)
20,471 (0.1)
0.44 (0.5)
0.16 (1.2)
16,500 (0.03)
9,400 (0.4)
Galvanized metal roofing (replicate)
30.8 (1.5)
nab (na)b
1.14 (0.7)
0(0.3)
0(0.09)
1.61 (0.3)
11,900 (0.01)
3,300 (0.4)
Waterproofed wood
0 (na)b
9.12 (0.2)
0 (na)b
0(0.5)
161 (0.2)
0.29 (0.3)
3.72 (0.8)
3.22 (3.1)
Pressure treated wood
62.2 (0.06)
6.47 (0.2)
0.38 (0.8)
53,002 (0.2)
191 (0.05)
0 (na)b
1.35 (0.02)
2.69 (0.5)
Fake slate roofing shingle
0.07 (1.7)
2.71 (0.4)
0 (na)b
0(0.3)
0.2 (0.1)
0.42 (0.07)
1.81 (0.3)
20.1 (1.1)
Leak stopper rubberized roof patch
0.05 (1.7)
9.43 (0.5)
0 (na)b
726 (15.4)
0.13 (0.5)
3.78 (0.8)
2.61 (0.9)
2.25 (1.0)
Kool seal acrylic patching cement
21.6 (1.7)
0 (na)b
0 (na)b
2,297 (1.2)
0.15 (1.4)
0.65 (0.9)
2.94 (1.5)
229 (0.9)
Gardner Wet-R-Dri roofing patch
203 (0.6)
0 (na)b
0 (na)b
0(2.7)
0(11.1)
0.094 (1.3)
0 (na)b
1.39 (5.1)
Silver dollar aluminum roof coating
0 (na)b
nab (na)b
nab (na)b
21,520 (1.1)
1.14 (1.0)
0.3 (6.1)
0 (na)b
151 (0.5)
aTable value equals average concentration [coefficient of variation (std. dev./avg.) in parenthesis].
bna=not available. Coefficient of variation cannot be calculated because none of the triplicate samples was indistinguishable from the background
(material contribution was zero).
caused zinc to be released to the environment, although the mag-
nitude of the release was >2 log less than the release from dis-
solution and leaching. While these results were not comparable
directly since they were not from the same manufacturer and
batch, they were indicative of the zinc reservoir that may be avail-
able for release into the environment under the right conditions in
the order of several grams per kilogram of roofing panel. Com-
paratively, the lead, copper, and cadmium releases were 2-4 or-
ders of magnitude less than zinc's releases.
Pilot -Scale Field Tests
The laboratory testing showed that these materials had a reservoir
of pollutants that could be released if conditions were right. How-
ever, in order to perform these tests, the materials had to be cut
to fit the test vessels. This cutting potentially exposed sublayers
that would not be exposed during the material's normal life. The
concern was that the cuts, in the aggressive environment of the
testing, were the source of the pollutants and that the results
would not be easily translatable to the field. Since both the PSH
and UAB sites were in areas of the United States with acid rain,
these sites were considered ideal for studying the long-term be-
havior of intact panels (installed according to manufacturer in-
structions). Because of the destruction of the UAB test site during
a hurricane and its recent rebuilding, this paper focused on the
PSH results.
Approximately 2 years of field monitoring occurred at PSH.
The results are shown in Figs. 3-6 for four pollutants of interest:
nitrate, reactive phosphorus, copper, and zinc, respectively. These
results have been background corrected using the concentrations
from the plexiglass control panel. Results were not included in
this paper for pH, specific conductance, total nitrogen, total
phosphorus, ammonia, and lead for every material. Since this
testing occurred well after lead phaseout from gasoline, lead
concentrations from the materials, after background correction,
were approximately 0 mg/L. pH for all materials were below
neutral, with runoff pHs measuring between 5 and 6.5 for all
materials except the cedar shakes (consistently approximately
4.5-5).
For the nutrients and copper graphs, only the results from the
treated woods and cedar shakes were incorporated. For zinc, only
the galvanized metal and aluminum -zinc alloy coated steel were
plotted. These materials were selected for each of these graphs
because of the nature of the material -woods composed of nutri-
ents in cells, and copper used as a preservative. Galvanized metal
and the alloy coated steel both advertised zinc in the product. In
addition, the daily rainfall, as reported by the National Weather
Service for the Harrisburg International Airport, was included as a
hyetograph on each figure. The airport monitoring location is
across Pennsylvania State Route 230 from the test site (within
0.5 km of the test site).
To confirm that the site was subjected to acid rain, periodic
monitoring of rainfall pH was conducted. The rainfall pH varied
le+6
1e+5
Y 1e+4
rn
E
N 1e+3
le+2
1e+1
Pristine=2002 purchase
Aged = 60+ years
Rx = Replicate number
e\9� e\Rf�l �eaor o\Jea Qa��
P9edfed
Sea P
P
Fig. 2. Zinc in galvanized metals -comparison of new and aged
materials
642 / JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING © ASCE / SEPTEMBER/OCTOBER 2008
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60
50
40
_o- --reared plywooa
J
-v- Waterproof Wood
p,
-o- Cedar Shakes
E
d 30
Z
iQ
20
i n
I p
10
04
0
200 400 600
Age (days)
0
30
25
100
20
E
E
E
200
c
5
d
sz
O
U
10
300
5
—+ 400
800
Fig. 3. Nitrate runoff concentrations for wood products
between 3.7 and 6.0, depending on the portion of the storm mea-
sured. In addition, the panels were inspected periodically for vis-
ible degradation.
The field results showed that nutrient concentrations were el-
evated early in the materials' lives (Fig. 3 for nitrate as nitrogen,
and Fig. 4 for reactive phosphorus as phosphate). Figs. 3 and 4
focused on the wood -based materials only. The woods typically
had higher concentrations than the metal -based or vinyl -type
roofing for these pollutants. The metal, rubber, and vinyl con-
centrations (not shown) were closer to background levels with
periodic spikes in the runoff (rubberized roofing reactive phos-
phorus spike of 32 mg/L at approximately Day 60; galvanized
aluminum nitrate spike of 35 mg/L at Day 50). Similar trends
were seen for ammonia, total nitrogen, and total phosphorus. In
general, the highest concentrations of these nutrients were found
in the runoff from the wood products, and in the case of the
nitrate, the untreated wood. This was not surprising since the
untreated wood was the first wood product to show visible deg-
radation (a split in the wood), exposing the underlayers to the
atmosphere. In addition, since these were wood products, the deg-
radation of cells and the release of nutrients from the cell mass
would be anticipated. Because these periodic spikes occurred
throughout the 2-year observation period, including winter, and
the control data were subtracted from the results before data
50
J
40
O
a
m 30
N
0
0
0 20
t
d
d 10
of
0
Fr 1' Q 11111'1111\r�r� T
-o-- Treated Plywood
-v-- Waterproof Wood
-ff- Cedar Shakes
P
/
I'
r
i
YO v
P '
G
i
0
100
E
E
200 -�
K
300
400
0 200 400 600 800
Age (days)
Fig. 5. Copper runoff concentrations for wood products (Note:
all values above 5 mg/L are estimated concentrations because
substantial dilution of the sample was needed to be within range of
the analytical method)
analysis. These spikes were not believed to be due to wash -on/
blow -on of fertilizer or grass cuttings, but instead, resulted from
the materials themselves. In addition, several of these spikes
could be correlated to additional visible material degradation (i.e.,
splitting of the wood).
Good (1993) found that dissolved metals' concentrations and
toxicity remained high in roof runoff samples, especially from
rusty galvanized metal roofs during first flush and several hours
after the rain started, indicating metal leaching continued through-
out the events. Figs. 5 and 6 highlight the results for copper and
zinc. As noted in the caption, many of the earlier samples from
the treated woods had copper concentrations that were very high
(upper analytical limit=5 mg/L; concentrations above 5 mg/L
were measured using substantial dilution and are estimates only).
Lead and arsenic concentrations were near background levels,
indicating minimal concerns. This was contrary to the results seen
by Khan et al. (2006), who noted elevated concentrations of ar-
senic from treated wood decks. For copper, preliminary results
showed that releases were substantially higher than expected for
many materials. Rubberized roofing had the highest Cu concen-
60
0
50
100 40
J
m
30
200 c
c N
20
300 10
0
0 MOO MRTgfe ID, 9 e F 400
0 200 400 600 Soo
Age (days)
Fig. 4. Reactive phosphorus runoff concentrations for wood products
-o- AI-Zn Coated Steel
-�- Galvanized Metal
V
R 'y`
n '\
I1 \
1 I \ I I
0
100
E
E
200
It
300
400
0 200 400 600 800
Age (days)
Fig. 6. Zinc runoff concentrations for galvanized metal and
aluminum -zinc alloy coated steel
JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING © ASCE / SEPTEMBER/OCTOBER 2008 / 643
Downloaded 13 May 2009 to 128.143.22.132. Redistribution subject to ASCE license or copyright; see http://pubs.asce.org/copyright

tration of the metal, rubber, and vinyl materials (data not shown),
<70 µg/L at Day 50. The remaining materials from this group
showed concentrations near background levels and less than
20 µg/L. Runoff concentrations of copper for the two treated
wood panels (Fig. 5) exceeded 5 mg/L for the first 9 months of
exposure. Only after 270 days postinstallation did the copper con-
centrations from these woods approach the analytical range of the
instrumentation. These results indicated that copper continued to
be released from these wood products and at levels high enough
to exceed the aquatic life criteria and that this release likely was
not due to an excess surface coating that would wash off in the
first few storms postinstallation.
The literature showed that zinc from traditional unpainted or
uncoated hot -dip galvanized steel could be an environmental
concern. Fig. 6 compares the zinc runoff concentrations from a
traditional galvanized panel and from Galvalume, a prepainted
aluminum -zinc alloy coating on steel. The results showed that
the zinc runoff concentration was 5 - 3 0 mg/L throughout the first
2 years of monitoring for the traditional galvanized metal panel,
while the prepainted aluminum -zinc alloy panel was less than
250 µg/L, more than two orders of magnitude less. Whether the
reduction in zinc runoff concentration was due to the painting/
coating on the material or due to a different formulation/
application method for the protective coating cannot be deter-
mined from these data.
The laboratory -scale research showed that there could be sig-
nificant potential for pollutants (especially nutrients and metals)
to be released from common roofing materials. However, the
laboratory activities did not mimic the cyclic wet -dry weathering
(including rainfall, ultraviolet radiation, temperature, etc.) to
which these materials are exposed over the course of their
10-50 year life span. Therefore, to better predict the pollutant
release over a material's installed lifetime, field testing was
started in August 2005 and continues to date. The ongoing field
tests confirmed several of the results seen in the laboratory. Met-
als, such as copper and zinc, still were being released from ma-
terials well after any short-term protective coatings should have
washed off, indicating that measurable quantities of pollutants
may continue to be released in an acid rain environment through-
out the material's useful life. This contradicts prior assumptions
that releases tended to stabilize to negligible levels over a prod-
uct's lifespan. Given the large quantity of these materials installed
in the environment, the overall contribution may be significant
and deserves further investigation.
Conclusions
The laboratory leaching results showed that traditional galvanized
metal roofing contributed the greatest concentrations of many of
the pollutants of interest —specific conductance, cations, metals
(particularly zinc), and nutrients. In addition, the metals' analyses
showed that the pressure treated and waterproofed wood contrib-
uted substantial copper loads. The potential for nutrient release
exists in many of these materials, such as from the galvanized
metal (potentially as a result of phosphate washes and binders
used in the material's preparation) and wood products due to
natural degradation. Tests conducted in the laboratory on the aged
roofing panels suggested that this pollutant release may occur for
an extended period of time. The laboratory testing results were
limited because they were single tests of a material (which had
been precut, exposing edges and the underlying structure) and
were performed under very aggressive conditions. Their results
were used to decide whether further investigation through a long-
term field study was warranted. The 2 years of field testing that
began in August 2005 documented low-level, long-term releases
of many pollutants from these materials.
These results indicated that investigation of the potential envi-
ronmental impact of roofing should be encouraged prior to the
material entering the market. In addition, stormwater modeling
and management should not ignore roofing when assessing
sources of pollutants. Roofs do not simply collect atmospheric
deposition and transport it to the drainage system. They also may,
depending on the material's composition and ability to degrade
and release pollutants, be a significant source of pollutants in
urban runoff. These results, in combination with those generated
from the UAB test site, will be used to develop models that ac-
count for the environmental and material characteristics that in-
fluence the degradation and release patterns seen in this study and
others.
Acknowledgments
The writers would like to acknowledge the contributions of three
undergraduate students at UAB—Blaine Collier, Amanda Lowry,
and Bridget Shealy, and one graduate and two undergraduate
students at PSH—Brad Mikula, Jim Elligson, and Christopher
Roenning. In addition, the writers would like to express their
appreciation to the following funding sources: Alabama Water
Resources Research Institute and the Penn State Harrisburg
Graduate Council Faculty Research Grants Committee.
References
Adeniyi, I. F., and Olabanji, I. O. (2005). "The physicochemical and
bacteriological quality of rainwater collected over different roofing
materials in Ile-Ife, southwestern Nigeria." Chem. Ecol., 21(3),
149-166.
American Public Health Association (APHA). (1995). Standard methods
for the examination of water and wastewater, 19th Ed., American
Water Works Association, Water Pollution Control Federation, Wash-
ington, D.C.
Athansiadis, K., Helmreich, B., and Wilderer, P. A. (2006). "Infiltration
of a copper roof runoff through artificial barriers." Water Sci. Tech-
nol., 54(6-7), 281-289.
Bailey, H. C., Elphick, J. R., Potter, A., and Zak, B. (1999). "Zinc tox-
icity in stormwater runoff from sawmills in British Columbia." Water
Res., 33(11), 2721-2725.
Boller, M. (1997). "Tracking heavy metals reveals sustainability deficits
of urban drainage systems." Water Sci. Technol., 35(9), 77-87.
Brown, J. N., and Peake, B. M. (2006). "Sources of heavy metals and
polycyclic aromatic hydrocarbons in urban stormwater runoff." Sci.
Total Environ., 359(1-3), 145-155.
Burton, G. A., Jr., and Pitt, R. (2002). Stormwater effects handbook:
A tool box for watershed managers, scientists, and engineers, CRC,
Boca Raton, Fla.
Clark, S. E. (2000). "Urban stormwater filtration: Optimization of design
parameters and a pilot -scale evaluation." Ph.D. dissertation, Univ. of
Alabama at Birmingham, Birmingham, Ala.
Clark, S. E., Lalor, M. M., and Pitt, R. (2005). "Wet -weather pollu-
tion from commonly -used building materials." Proc., World Environ-
mental and Water Resources Congress (CD-ROM), ASCE/EWRI,
Reston, Va.
Clark, S. E., Pitt, R., and Field, R. (2002). "Wet -weather pollution pre-
vention by product substitution." Proc., United Engineering Conf. on
Linking Stormwater BMP Designs and Performance to Receiving
644 / JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING © ASCE / SEPTEMBER/OCTOBER 2008
Downloaded 13 May 2009 to 128.143.22.132. Redistribution subject to ASCE license or copyright; see http://pubs.asce.org/copyright

Water Impacts, ASCE, Reston, Va., 266-283.
Davis, A., and Burns, M. (1999). "Evaluation of lead concentration in
runoff from painted structures." Water Res., 33(13), 2949-2958.
Good, J. C. (1993). "Roof runoff as a diffuse source of metals and aquatic
toxicity in stormwater." Water Sci. Technol., 28(3-5), 317-321.
Khan, B. I., Solo-Gabriele, H. M., Townsend, T. G., and Cai, Y. (2006).
"Release of arsenic to the environment from CCA-treated wood. 1:
Leaching and speciation during service." Environ. Sci. Technol., 40,
988-993.
Kingette Mitchell Ltd., and Diffuse Sources Ltd. (2003). A study of roof
runoff quality in Auckland, New Zealand: Implications for stormwater
management, Takapuna, Auckland, New Zealand.
Lebow, S. T., Foster, D. O., and Lebow, R K. (1999). "Release of copper,
chromium, and arsenic from treated southern pine exposed in sea-
water and freshwater." For. Prod. J., 49(7), 80-89.
Ondura. (2002). Ondura® has it all over other roofing, Fredericksburg,
Va.
Pitt, R., Field, R., Lalor, M., and Brown, M. (1995). "Urban stormwater
toxic pollutants: assessment, sources and treatability." Water Environ.
Res., 67(3), 260-275.
Pitt, R., Robertson, B., Barron, P., Ayyoubi, A., and Clark, S. (1999).
Stormwater runoff treatment at critical areas: The multichambered
treatment train (MCTT), EPA 600/R-99/017, U.S. Environmental Pro-
tection Agency, Water Supply and Water Resources Division, National
Risk Management Laboratory, Cincinnati.
Stranks, D. W. (1976). "Wood preservatives: Their depletion as fungi-
cides and fate in the environment." Canadian Forest Service Techni-
cal Rep. No. 10, Ottawa, Canada.
Tobiason, S. (2004). "Stormwater metals removal by media filtration:
Field assessment case study." Proc., Watershed 2004 Conf. Proc.,
(CD-ROM), Water Environment Federation, Alexandria, Va.
Van Assche, E, Regoli, L., and Cook, M. (2003). "Atmospheric zinc
run-off in a general perspective of diffuse zinc emissions to surface
waters: Experience of the EU zinc risk assessment." Korrosionsinsti-
tutet Rap. No. 109E, 159-167.
Wallinder, I. O., Bahar, B., Leygraf, C., and Tidblad, J. (2007). "Model-
ling and mapping of copper runoff for Europe." J. Environ. Monit., 9,
66-73.
11 eN R11We]0 1 1[eII�1Eel ►F_1►1811►1_\e]:111:1QEe11►1MIA IINO[o7_6YyFA9Ai9:1Jil:3:1:7NZ0C0] :1 I I : liP
Downloaded 13 May 2009 to 128.143.22.132. Redistribution subject to ASCE license or copyright; see http://pubs.asce.org/copyright

APPENDIX B
ANALYTICAL DATA

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
November 10, 2015
Mark Kennard
Watts Water Technologies
815 Pickens Street
Chesnee, SC 29323
RE: Project: WATTS SPINDALE SW
Pace Project No.: 92273665
Dear Mark Kennard:
Enclosed are the analytical results for sample(s) received by the laboratory on October 28, 2015.
The results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Nicole Gasiorowski
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, Inc..
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
Project: WATTS SPINDALE SW
Pace Project No.: 92273665
Asheville Certification IDs
2225 Riverside Drive, Asheville, INC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
West Virginia Certification #: 356
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273665
Sample: ROAD RUN OFF-01 DC Lab ID: 92273665001 Collected: 10/27/15 10:25 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 8.1 ug/L 5.0 1 10/29/15 20:00 11/02/15 19:24 7440-50-8
Lead ND ug/L 5.0 1 10/29/15 20:00 11/02/15 19:24 7439-92-1
Zinc 46.9 ug/L 10.0 1 10/29/15 20:00 11/03/15 21:43 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Date: 11/10/2015 10:54 AM without the written consent of Pace Analytical Services, Inc.. Page 3 of 11

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273665
Sample: ROAD RUN OFF-02 DR Lab ID: 92273665002 Collected: 10/27/15 10:30 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 438 ug/L 5.0 1 10/29/15 20:00 11/02/15 19:42 7440-50-8
Lead 52.4 ug/L 5.0 1 10/29/15 20:00 11/02/15 19:42 7439-92-1
Zinc 178 ug/L 10.0 1 10/29/15 20:00 11/03/15 21:51 7440-66-6
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273665
Sample: ROOF DRAIN #1 DOCK Lab ID: 92273665003 Collected: 10/27/15 10:05 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 12.0 ug/L 5.0 1 10/29/15 20:00 11/02/15 19:46 7440-50-8
Lead ND ug/L 5.0 1 10/29/15 20:00 11/02/15 19:46 7439-92-1
Zinc 338 ug/L 10.0 1 10/29/15 20:00 11/03/15 21:54 7440-66-6
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273665
Sample: ROOF DRAIN #2 EVAP Lab ID: 92273665004 Collected: 10/27/15 10:10 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 205 ug/L 5.0 1 10/29/15 20:00 11/02/15 19:49 7440-50-8
Lead 51.2 ug/L 5.0 1 10/29/15 20:00 11/02/15 19:49 7439-92-1
Zinc 1890 ug/L 10.0 1 10/29/15 20:00 11/03/15 21:57 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: WATTS SPINDALE SW
Pace Project No.: 92273665
QC Batch: MPRP/19925 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92273665001, 92273665002, 92273665003, 92273665004
METHOD BLANK: 1595294
Matrix: Water
Associated Lab Samples:
92273665001, 92273665002, 92273665003, 92273665004
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Copper
ug/L
ND 5.0
11/05/1516:28
Lead
ug/L
ND 5.0
11/05/1516:28
Zinc
ug/L
ND 10.0
11/05/1516:28
LABORATORY CONTROL SAMPLE:
1595295
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
504 101 85-115
Lead
ug/L
500
493 99 85-115
Zinc
ug/L
500
485 97 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1595298
1595299
MS
MSD
92273665001
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
8.1
500
500
480
470
94
92
70-130
2
Lead ug/L
ND
500
500
475
473
94
94
70-130
0
Zinc ug/L
46.9
500
500
495
486
90
88
70-130
2
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Huntersville, INC 28078
[phone]
QUALIFIERS
Project: WATTS SPINDALE SW
Pace Project No.: 92273665
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
WORKORDER QUALIFIERS
WO: 92273665
Ill Report revised to remove full analyte list from sample -001. Only Cu, Pb, Zn were requested. Samples -002 through -004
had correct list.
REPORT OF LABORATORY ANALYSIS
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Pace Analytical Services, Inc.
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Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project:
Pace Project No.:
WATTS SPINDALE SW
92273665
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Batch
92273665001
ROAD RUN OFF-01 DC
EPA200.7
MPRP/19925
EPA200.7
ICP/17967
92273665002
ROAD RUN OFF-02 DR
EPA200.7
MPRP/19925
EPA200.7
ICP/17967
92273665003
ROOF DRAIN #1 DOCK
EPA200.7
MPRP/19925
EPA200.7
ICP/17967
92273665004
ROOF DRAIN #2 EVAP
EPA200.7
MPRP/19925
EPA200.7
ICP/17967
REPORT OF LABORATORY ANALYSIS
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aceArtalyfr`ca!
Sample Condition U onaRecei t SCUR LJu4ul'ICI
ILPage 1 of lay
Document Number: issuing Authority:
F-CHR-CS-003-rev.16 Pace Huntersville Quality Office
Client Name: �,/,i + -�wit f- Qf ' Page 2 of 2 is for Internal Use Only
Courier: ❑ Fed E70 UP ' USP❑ Clier❑ CommerciC Pace Other Optional
Custody Seal on Cooler/Box Present: ❑ yes ❑ no Seals intact: ❑ yes ❑ no Proj. Due Date:
Proj. Name:
Packing Material: ❑ Bubble Wrap ❑ Bubble Bags None ❑ Other
Thermometer Used: IR Gun T 402 Type of Ice: et Blue None amples on ice, cooling process has begun
C.M... TlAn*) Nn r..nrrartinn
Corrected Cooler Temp.:5. -C
Biological Tissue is Frozen: Yes No
Date and Initials of person examining
contents:_,�1
Temp should be above freezing to 6°C
Comments:
Chain of Custody Present:
- es
❑NrA
1.
Chain of Custody Filled Out:
D,6, ❑
❑NIA
2.
Chain of Custody Relinquished:
es ❑No
NIA
3.
Sampler Name & Signature on COC:
es ONo
❑N/A
4.
Samples Arrived within Hold Time:
Ef es ❑No
❑NIA
5.
Short Hold Time Analysis (<72hr):
❑Yes
rA
6.
Rush Turn Around Time Requested:
Dyes
❑NIA
7,
Sufficient Volume:
❑ es_QWo
❑NIA
8.
Correct Containers Used:
es No
❑N!A
g.
-Pace Containers Used:
es No
❑NIA
Containers Intact:
Z Yes ❑No
❑NIA
10.
Filtered volume received for Dissolved tests
Dyes ❑No
❑ IA
11.
Sample Labels match COC:
es ❑No
❑NIA
12.
-Includes date/time/10/Analysis Matrix:
4,/
All containers needing preservation have been checked.
es o
❑NIA
13.
All containers needing preservation are found to be in
Yes ❑No
❑NIA
compliance with EPA recommendation.
exceptions: VOA, coliform, TOG, O&G, VVI-SRO (water)
❑Yes ❑t(
Samples checked for dechlorination:
Dyes ❑No
NIA
Headspace in VOA Vials ( >6mm):
Dyes ❑No
❑ IA
Trip Blank Present:
❑Yes ❑No
DNIA
t6.
Trip Blank Custody Seals Present
Dyes ❑No
IA
Pace Trip Blank Lot ## (if purchased):
Client Notification! Resolution: Field Data Required? Y 1 N
Person Contacted:
Comments/ Resolution:
Date/Time:
SCURF Review: Date: 7' S
SRF Review: Date:
Note: Whenever there is a discrepancy affecting North Carolina compliance
samples, a copy of this form will be sent to the North Carolina DEHNR
Certification Office ( La out of hold, incorrect preservative, out of temp,
incorrect containers)
Wpp;92273665
1114 111111
92213665
,il Div rd❑el available)
Page 10 of 11

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4
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N
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c
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o
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Z
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YIN
^-
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n
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8
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y
m
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Page 11 of 11

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
November 09, 2015
Mark Kennard
Watts Water Technologies
815 Pickens Street
Chesnee, SC 29323
RE: Project: WATTS SPINDALE SW
Pace Project No.: 92273668
Dear Mark Kennard:
Enclosed are the analytical results for sample(s) received by the laboratory on October 28, 2015.
The results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Nicole Gasiorowski
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 1 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
Charlotte Certification IDs
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Certification #: 99006001
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
West Virginia Certification #: 357
Virginia/VELAP Certification #: 460221
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
West Virginia Certification #: 356
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc.. Page 2 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
Sample: OU-001 Lab ID: 92273668001 Collected: 10/27/15 09:25 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/04/15 08:33
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
72.2 ug/L
5.0
1 10/29/15 20:00
11/02/15 19:52 7440-50-8
Lead
7.4 ug/L
5.0
1 10/29/15 20:00
11/02/15 19:52 7439-92-1
Zinc
73.4 ug/L
10.0
1 10/29/15 20:00
11/03/15 22:01 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
55.1 mg/L
2.6
1
10/29/15 10:12
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc.. Page 3 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
Sample: OU-002 Lab ID: 92273668002 Collected: 10/27/15 09:35 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/04/15 08:33
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
5.9 ug/L
5.0
1 10/29/15 20:00
11/02/15 19:55 7440-50-8
Lead
ND ug/L
5.0
1 10/29/15 20:00
11/02/15 19:55 7439-92-1
Zinc
28.7 ug/L
10.0
1 10/29/15 20:00
11/03/15 22:04 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
3.1
1
10/29/15 10:13
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc.. Page 4 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
Sample: OU-004 Lab ID: 92273668003 Collected: 10/27/15 09:45 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/04/15 08:34
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
55.0 ug/L
5.0
1 10/29/15 20:00
11/02/15 19:58 7440-50-8
Lead
ND ug/L
5.0
1 10/29/15 20:00
11/02/15 19:58 7439-92-1
Zinc
196 ug/L
10.0
1 10/29/15 20:00
11/03/15 22:16 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
4.4 mg/L
2.9
1
10/29/15 10:13
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc.. Page 5 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
Sample: OU-006 Lab ID: 92273668004 Collected: 10/27/15 09:55 Received: 10/28/15 11:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/04/15 08:34
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
37.8 ug/L
5.0
1 10/29/15 20:00
11/02/15 20:01 7440-50-8
Lead
ND ug/L
5.0
1 10/29/15 20:00
11/02/15 20:01 7439-92-1
Zinc
117 ug/L
10.0
1 10/29/15 20:00
11/03/15 22:19 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
3.5 mg/L
3.1
1
10/29/15 10:13
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc.. Page 6 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
QC Batch: GCSV/23097
Analysis Method:
EPA 1664B
QC Batch Method: EPA 1664E
Analysis Description:
1664 SGT-HEM, TPH
Associated Lab Samples: 92273668001, 92273668002, 92273668003, 92273668004
METHOD BLANK: 1598176
Matrix: Water
Associated Lab Samples: 92273668001, 92273668002, 92273668003, 92273668004
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Total Petroleum Hydrocarbons
mg/L
ND 5.0
11/04/15 08:22
LABORATORY CONTROL SAMPLE:
1598177
Spike LCS
LCS % Rec
Parameter
Units
Conc. Result
% Rec Limits Qualifiers
Total Petroleum Hydrocarbons
mg/L
20 14.5
72 64-132
MATRIX SPIKE SAMPLE:
1598178
92273784002 Spike
MS MS % Rec
Parameter
Units
Result Conc.
Result % Rec Limits Qualifiers
Total Petroleum Hydrocarbons
mg/L
ND 20
16.1 80 64-132
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc..
Page 7 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
QC Batch: MPRP/19925 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92273668001, 92273668002, 92273668003, 92273668004
METHOD BLANK: 1595294
Matrix: Water
Associated Lab Samples:
92273668001, 92273668002, 92273668003, 92273668004
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Copper
ug/L
ND 5.0
11/05/1516:28
Lead
ug/L
ND 5.0
11/05/1516:28
Zinc
ug/L
ND 10.0
11/05/1516:28
LABORATORY CONTROL SAMPLE:
1595295
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
504 101 85-115
Lead
ug/L
500
493 99 85-115
Zinc
ug/L
500
485 97 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1595298
1595299
MS
MSD
92273665001
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
8.1
500
500
480
470
94
92
70-130
2
Lead ug/L
ND
500
500
475
473
94
94
70-130
0
Zinc ug/L
46.9
500
500
495
486
90
88
70-130
2
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc.. Page 8 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
QC Batch: WET/41108
Analysis Method: SM 2540D
QC Batch Method: SM 2540D
Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92273668001, 92273668002, 92273668003, 92273668004
METHOD BLANK: 1594264
Matrix: Water
Associated Lab Samples: 92273668001, 92273668002, 92273668003, 92273668004
Blank Reporting
Parameter
Units
Result Limit Analyzed Qualifiers
Total Suspended Solids
mg/L
ND 2.5 10/29/15 10:09
LABORATORY CONTROL SAMPLE:
1594265
Spike LCS LCS % Rec
Parameter
Units
Conc. Result % Rec Limits Qualifiers
Total Suspended Solids
mg/L
250 250 100 90-110
SAMPLE DUPLICATE: 1594266
92273613003 Dup
Parameter
Units
Result Result RPD Qualifiers
Total Suspended Solids
mg/L
31.0 33.0 6 D6
SAMPLE DUPLICATE: 1594267
92273669003 Dup
Parameter
Units
Result Result RPD Qualifiers
Total Suspended Solids
mg/L
ND ND
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc.. Page 9 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALIFIERS
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
ANALYTE QUALIFIERS
D6 The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/09/2015 04:34 PM without the written consent of Pace Analytical Services, Inc.. Page 10 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: WATTS SPINDALE SW
Pace Project No.: 92273668
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
92273668001
OU-001
EPA 1664B
GCSV/23097
92273668002
OU-002
EPA 1664B
GCSV/23097
92273668003
OU-004
EPA 1664B
GCSV/23097
92273668004
OU-006
EPA 1664B
GCSV/23097
92273668001
OU-001
EPA 200.7
MPRP/19925
EPA 200.7
92273668002
OU-002
EPA 200.7
MPRP/19925
EPA 200.7
92273668003
OU-004
EPA 200.7
MPRP/19925
EPA 200.7
92273668004
OU-006
EPA 200.7
MPRP/19925
EPA 200.7
92273668001
OU-001
SM 2540D
WET/41108
92273668002
OU-002
SM 2540D
WET/41108
92273668003
OU-004
SM 2540D
WET/41108
92273668004
OU-006
SM 2540D
WET/41108
Date: 11/09/2015 04:34 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Analytical
Batch
ICP/17967
ICP/17967
ICP/17967
ICP/17967
Page 11 of 13

�/ _ft�ceAnalytrcal'
Sample Condition Un[on ReceiptSCUR ""`'"IIICI��Pave 1 of tar JV,
Document Number: Issuing Authority:
F-CHR-CS-003-rev.16 Pace Huntersville Quality Office
Client Name: �' Li � 45 [, 6t 1" * Page 2 of 2 is for Internal Use Only
Courier: ❑ Fed E UP❑ USP❑ Clier❑ CommerciC Pace Other optional
Custody Seal on CoolerlBox Present: ❑ ye El no Seals intact: El yes El no Proj. Due Dater
Proj. Name:
Packing Material: ❑ Bubble Wrap ❑ubble Bags ❑ None ❑ Other
Thermometer Used: IR Gun T 402 Type of Ice: et f Blue None amples on ice, cooling process has begun
TAA Aln i`n rra n#inn
Corrected Cooler Temp.: C.
Biological Tissue is Frozen: Yes No NIA
g
Date and Initials of person examining
contents:_/q
Temp should be above freezing to 6'C
Comments:
Chain of Custody Present:
es PNo
❑NIA 1.
Chain of Custody Filled Out:
es No
❑NIA 2.
Chain of Custody Relinquished:
0 1 es 9NO
13 N/A
3.
Sampler Name & Signature on COC:
D<es o
❑NIA
4.
Samples Arrived within Hold Time:
DKs ❑No
NIA
6,
Short Hold Time Analysis (<72hr):
Dyes o
gRA
6.
Rush Turn Around Time Requested:
Dyes
❑NIA
7.
Sufficient Volume:
- es
❑NIA
g.
Correct Containers Used:
❑2N6' ❑NIA
9,
-Pace Containers Used:
0No
❑NIA
Containers Intact:
s ❑No
❑NIA
10,
Filtered volume received for Dissolved tests
Dyes ❑
❑
11.
Sample Labels match COC:
es ❑No
El NIA
12.
W
-Includes date/time/ID/Analysis Matrix:
All containers needing preservation have been checked.❑No
❑N!A
13.
All containers needing preservation are found to be in
�e,[]N,
❑NIA
,compliance with EPA recommendation.
s ONO
exceptions: VOA, coliform, TOC, 0&G, 4NI-DRO (water)
Samples checked for dechlorination:
Dyes ❑No
ON<
14.
Headspace in VOA Vials (>6mm):
Dyes ❑No
CKIA
15.
Trip Blank Present:
Dyes ❑No
❑
16
Trip Blank Custody Seals Present
Dyes ❑No
CNIA
Pace Trip Blank Lot # (if purchased):
Client Notification! Resolution: Field Data Required? Y 1 N
Person Contacted: DatelTime:
Comments/ Resolution:
SCURF Review: w Date: iV�,_. L�-'Q
SRF Review: Date: I i b -23
Note: Whenever there is a discrepancy affecting North Carolina compliance
samples, a copy of this form will be sent to the North Carolina DEHNR
Certification Office ( i.e out of hold, incorrect preservative, out of temp,
incorrect containers)
Place label here
WO# : 92273668
1111111111111111111111
92273668
Page 12 of 13

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0
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nn
3
Page 13 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
November 30, 2015
Mark Kennard
Watts Water Technologies
815 Pickens Street
Chesnee, SC 29323
RE: Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Dear Mark Kennard:
Enclosed are the analytical results for sample(s) received by the laboratory on November 19, 2015.
The results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Nicole Gasiorowski
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, Inc..
Page 1 of 17

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Huntersville, INC 28078
[phone]
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Charlotte Certification IDs
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Certification #: 99006001
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
West Virginia Certification #: 357
Virginia/VELAP Certification #: 460221
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
West Virginia Certification #: 356
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
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ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: OU-001 Lab ID: 92276912001 Collected: 11/18/15 07:05 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/24/15 10:44
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
68.8 ug/L
5.0
1 11/23/15 20:30
11/25/15 00:09 7440-50-8
Lead
9.2 ug/L
5.0
1 11/23/15 20:30
11/25/15 00:09 7439-92-1
Zinc
44.3 ug/L
10.0
1 11/23/15 20:30
11/25/15 00:09 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
22.5 mg/L
3.8
1
11/20/15 11:56
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: OU-002 Lab ID: 92276912002 Collected: 11/18/15 07:12 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/24/15 10:44
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
40.3 ug/L
5.0
1 11/23/15 20:30
11/25/15 00:17 7440-50-8
Lead
ND ug/L
5.0
1 11/23/15 20:30
11/25/15 00:17 7439-92-1
Zinc
64.5 ug/L
10.0
1 11/23/15 20:30
11/25/15 00:17 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
16.3 mg/L
7.1
1
11/20/15 11:56 D6
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: OU-004 Lab ID: 92276912003 Collected: 11/18/15 07:21 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/24/15 10:45
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
142 ug/L
5.0
1 11/23/15 20:30
11/25/15 00:21 7440-50-8
Lead
20.7 ug/L
5.0
1 11/23/15 20:30
11/25/15 00:21 7439-92-1
Zinc
220 ug/L
10.0
1 11/23/15 20:30
11/25/15 00:21 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
30.8 mg/L
4.2
1
11/20/15 11:57
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: OU-006 Lab ID: 92276912004 Collected: 11/18/15 07:32 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM, TPH
Analytical Method: EPA 1664E
Total Petroleum Hydrocarbons
ND mg/L
5.0
1
11/24/15 10:45
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
67.4 ug/L
5.0
1 11/23/15 20:30
11/25/15 00:24 7440-50-8
Lead
ND ug/L
5.0
1 11/23/15 20:30
11/25/15 00:24 7439-92-1
Zinc
196 ug/L
10.0
1 11/23/15 20:30
11/25/15 00:24 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
4.2
1
11/20/15 11:57
REPORT OF LABORATORY ANALYSIS
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9800 Kincey Ave. Suite 100
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[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: ROAD RUN OFF-01 DC Lab ID: 92276912005 Collected: 11/18/15 08:10 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 16.4 ug/L 5.0 1 11/23/15 20:30 11/25/15 00:36 7440-50-8
Lead ND ug/L 5.0 1 11/23/15 20:30 11/25/15 00:36 7439-92-1
Zinc 96.4 ug/L 10.0 1 11/23/15 20:30 11/25/15 00:36 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Date: 11/30/2015 02:20 PM without the written consent of Pace Analytical Services, Inc.. Page 7 of 17

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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: ROAD RUN OFF-02 DR Lab ID: 92276912006 Collected: 11/18/15 08:15 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 71.0 ug/L 5.0 1 11/23/15 20:30 11/25/15 00:39 7440-50-8
Lead ND ug/L 5.0 1 11/23/15 20:30 11/25/15 00:39 7439-92-1
Zinc 69.8 ug/L 10.0 1 11/23/15 20:30 11/25/15 00:39 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Date: 11/30/2015 02:20 PM without the written consent of Pace Analytical Services, Inc.. Page 8 of 17

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: ROOF DRAIN #1 DOCK Lab ID: 92276912007 Collected: 11/18/15 08:25 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 9.9 ug/L 5.0 1 11/23/15 20:30 11/25/15 00:42 7440-50-8
Lead ND ug/L 5.0 1 11/23/15 20:30 11/25/15 00:42 7439-92-1
Zinc 229 ug/L 10.0 1 11/23/15 20:30 11/25/15 00:42 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Date: 11/30/2015 02:20 PM without the written consent of Pace Analytical Services, Inc.. Page 9 of 17

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Sample: ROOF DRAIN #2 EVAP Lab ID: 92276912008 Collected: 11/18/15 08:30 Received: 11/19/15 10:15 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 107 ug/L 5.0 1 11/23/15 20:30 11/25/15 00:45 7440-50-8
Lead 47.6 ug/L 5.0 1 11/23/15 20:30 11/25/15 00:45 7439-92-1
Zinc 759 ug/L 10.0 1 11/23/15 20:30 11/25/15 00:45 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/30/2015 02:20 PM without the written consent of Pace Analytical Services, Inc.. Page 10 of 17

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
QC Batch: GCSV/23323
Analysis Method:
EPA 1664B
QC Batch Method: EPA 1664E
Analysis Description:
1664 SGT-HEM, TPH
Associated Lab Samples: 92276912001, 92276912002,
92276912003, 92276912004
METHOD BLANK: 1613786
Matrix: Water
Associated Lab Samples: 92276912001, 92276912002,
92276912003, 92276912004
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Total Petroleum Hydrocarbons
mg/L
ND 5.0
11/24/15 10:28
LABORATORY CONTROL SAMPLE:
1613787
Spike LCS
LCS % Rec
Parameter
Units
Conc. Result
% Rec Limits Qualifiers
Total Petroleum Hydrocarbons
mg/L
20 15.5
78 64-132
MATRIX SPIKE SAMPLE:
1613788
92275825001 Spike
MS MS % Rec
Parameter
Units
Result Conc.
Result % Rec Limits Qualifiers
Total Petroleum Hydrocarbons
mg/L
ND 20
17.3 86 64-132
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 11/30/2015 02:20 PM without the written consent of Pace Analytical Services, Inc..
Page 11 of 17

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
QC Batch: MPRP/20101
Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7
Analysis Description: 200.7 MET
Associated Lab Samples: 92276912001, 92276912002,
92276912003,
92276912004, 92276912005, 92276912006, 92276912007,
92276912008
METHOD BLANK: 1613593
Matrix: Water
Associated Lab Samples: 92276912001, 92276912002,
92276912003,
92276912004, 92276912005, 92276912006, 92276912007,
92276912008
Blank
Reporting
Parameter Units
Result
Limit
Analyzed Qualifiers
Copper ug/L
ND 5.0
11/25/15 00:02
Lead ug/L
ND 5.0
11/25/15 00:02
Zinc ug/L
ND 10.0
11/25/15 00:02
LABORATORY CONTROL SAMPLE: 1613594
Spike
LCS
LCS % Rec
Parameter Units
Conc.
Result
% Rec Limits Qualifiers
Copper ug/L
500
476
95 85-115
Lead ug/L
500
471
94 85-115
Zinc ug/L
500
478
96 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 1613595
1613596
MS
MSD
92276912001
Spike
Spike MS
MSD MS MSD
% Rec
Parameter Units Result
Conc.
Conc. Result
Result % Rec % Rec
Limits
RPD Qual
Copper ug/L 68.8
500
500 537
530 94 92
70-130
1
Lead ug/L 9.2
500
500 468
464 92 91
70-130
1
Zinc ug/L 44.3
500
500 509
504 93 92
70-130
1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 1613597
1613598
MS
MSD
92276695001
Spike
Spike MS
MSD MS MSD
% Rec
Parameter Units Result
Conc.
Conc. Result
Result % Rec % Rec
Limits
RPD Qual
Copper ug/L ND
500
500 498
495 98 97
70-130
1
Lead ug/L ND
500
500 407
409 81 81
70-130
0
Zinc ug/L ND
500
500 479
471 91 89
70-130
2
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
QC Batch: WET/41531
Analysis Method: SM 2540D
QC Batch Method: SM 2540D
Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92276912001, 92276912002,
92276912003, 92276912004
METHOD BLANK: 1611897
Matrix: Water
Associated Lab Samples: 92276912001, 92276912002,
92276912003, 92276912004
Blank Reporting
Parameter
Units
Result Limit Analyzed Qualifiers
Total Suspended Solids
mg/L
ND 2.5 11/20/15 11:54
LABORATORY CONTROL SAMPLE:
1611898
Spike LCS LCS % Rec
Parameter
Units
Conc. Result % Rec Limits Qualifiers
Total Suspended Solids
mg/L
250 228 91 90-110
SAMPLE DUPLICATE: 1611899
92276978001 Dup
Parameter
Units
Result Result RPD Qualifiers
Total Suspended Solids
mg/L
164 176 7 D6
SAMPLE DUPLICATE: 1611900
92276912002 Dup
Parameter
Units
Result Result RPD Qualifiers
Total Suspended Solids
mg/L
16.3 21.7 29 D6
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALIFIERS
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
ANALYTE QUALIFIERS
D6 The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits.
REPORT OF LABORATORY ANALYSIS
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aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: WATTS SPINDALE STORMWATER
Pace Project No.: 92276912
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
92276912001
OU-001
EPA 1664B
GCSV/23323
92276912002
OU-002
EPA 1664B
GCSV/23323
92276912003
OU-004
EPA 1664B
GCSV/23323
92276912004
OU-006
EPA 1664B
GCSV/23323
92276912001
OU-001
EPA 200.7
MPRP/20101
EPA 200.7
92276912002
OU-002
EPA 200.7
MPRP/20101
EPA 200.7
92276912003
OU-004
EPA 200.7
MPRP/20101
EPA 200.7
92276912004
OU-006
EPA 200.7
MPRP/20101
EPA 200.7
92276912005
ROAD RUN OFF-01 DC
EPA 200.7
MPRP/20101
EPA 200.7
92276912006
ROAD RUN OFF-02 DR
EPA 200.7
MPRP/20101
EPA 200.7
92276912007
ROOF DRAIN #1 DOCK
EPA 200.7
MPRP/20101
EPA 200.7
92276912008
ROOF DRAIN #2 EVAP
EPA 200.7
MPRP/20101
EPA 200.7
92276912001
OU-001
SM 2540D
WET/41531
92276912002
OU-002
SM 2540D
WET/41531
92276912003
OU-004
SM 2540D
WET/41531
92276912004
OU-006
SM 2540D
WET/41531
Date: 11/30/2015 02:20 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Analytical
Batch
ICP/18128
ICP/18128
ICP/18128
ICP/18128
ICP/18128
ICP/18128
ICP/18128
ICP/18128
Page 15 of 17

Document Name:
Document Revised: November 17, 2015
ae� 4nalyficalu
Sample Condition Upon Receipt SCUR
Page 1 of 2*
Document Number:
Issuing Authority:
F-CHR-CS-003-rev.16.1
Pace Huntersville Quality Office
Client Name.�_j )�j�i� � � � � u e 1; �� * Page 2 of 2 is for Internal Use Only
Courier: ❑ Fed E)o UI?E] USP❑ Clier❑ CommercIC Pace Other O tlorial
Custody Seal on Cooler/Box Present: 0_ yes ❑ no Seals intact: [1 yes ❑ no pro) . Que Date::
Rroj., Name:
Packing Material: ❑ Bubble Wrap ❑ Bubble Bags ❑ None ❑ Other
Thermometer Used: IR Gun T1505 Type of Ice: (Wej Blue None} Samples on ice, cooling process has begun
Temp Correction Factor No Correction
Corrected Cooler Temp.: 7 ti °C
Biological Tissue is Frozen: Yes
No' � Date and Initials of person examining
-: � contents: � � �I •- � i
Temp should be above freezing to 6°C
Comments:
Chain of Custody Present:
0 es
❑No
©NIA
1.
Chain of Custody Filled Out:
PY6
❑No
❑N/A
2.
Chain of Custody Relinquished.
J2r'&
❑No
❑NIA
3.
Sampler Name & Signature on COC:
d Yes ❑No
❑NIA
4.
Samples Arrived within Hold Time:
I
©No
❑NIA
5.
Short Hold Time Analysis (a72hr):
❑Yes
(I V�ovfo
❑NIA
6,
Rush Turn Around Time Requested:
Oyes I INo
❑NIA
7.
Sufficient Volume:
❑Yes
❑No
❑NIA
$,
Correct.Containers Used:
dYes
ONO
❑NIA
g,
-Pace Containers Used:
dYes
❑No
❑NIA
Containers Intact:
Des
❑No
❑NIA
10,
Filtered volume received for Dissolved tests
O[Yes
©No
❑NIA
11,
Sample labels match COC:
Ilyes
❑No
❑NIA
12.
L
-Includes date/time/ID/Analysis Matrix:
' 1
All containers needing preservation have been checked,
-
❑Yes
❑No
❑NIA
13.
All containers needing preservation are found to be in
[eyes
❑No
❑NIA
compliance with EPA recommendation.
exceptions: VOA, coliform, TOQ O&G, Wl-DRO (water)
Oyes
i7No
Samples checked for dechlorination:
10 as
❑No
❑NIA
14,
Headspace in VOA Vials (>6mm):
❑Yes
❑No
0
15.
Trip Blank Present:
❑Yes
❑No
0�NIA
i!INIA
16.
Trip Blank Custody Seals Present
❑Yes
❑No
© A
Pace Trip Blank Lot # (if purchased):
Client Notification/ Resolution: Field Data Required? Y 1 N
Person Contacted: Date/Time:
Comments/ Resolution:
SCURF Review: VU Data:
SRIF Review: �, �; Date: l l ?: ` ;�
Note: Whenever there is a discrepancy affecting North Carolina compliance
samples, a copy of this form will be sent to the North Carolina DEHNR
Certification Office ( i.e out of hold, incorrect preservative, out of temp,
incorrect containers)
922769
Page 16 of 17

TEMP in C
Received on
Ice
(YIN)
Custody
�
Sealed
Cooler
(YIN)
_
Samples
Intact
(YIN)
ITEM #
o
p
Z.
G
G G
C
N
o13
N w
Icc
I'
MCI m
0
9
3 00
z
M
N
�
n
m
y °p A g O N L A
A �yrr'
z
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Page 17 of 17

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
December 31, 2015
Mark Kennard
Watts Water Technologies
815 Pickens Street
Chesnee, SC 29323
RE: Project: November Stormwater
Pace Project No.: 92281098
Dear Mark Kennard:
Enclosed are the analytical results for sample(s) received by the laboratory on December 23, 2015.
The results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
The samples were received outside of required temperature range. Analysis was completed upon
client approval.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Nicole Gasiorowski
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 1 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
Project: November Stormwater
Pace Project No.: 92281098
Charlotte Certification IDs
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Certification #: 99006001
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
West Virginia Certification #: 357
Virginia/VELAP Certification #: 460221
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
West Virginia Certification #: 356
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc.. Page 2 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: November Stormwater
Pace Project No.: 92281098
Sample: OU-001 Lab ID: 92281098001 Collected: 12/22/15 16:50 Received: 12/23/15 11:45 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
12/31/15 05:14
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
50.0 ug/L
5.0
1 12/24/15 18:30
12/29/15 00:02 7440-50-8
Lead
ND ug/L
5.0
1 12/24/15 18:30
12/29/15 00:02 7439-92-1
Zinc
73.2 ug/L
10.0
1 12/24/15 18:30
12/29/15 00:02 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
2.9
1
12/24/15 11:49
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc.. Page 3 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: November Stormwater
Pace Project No.: 92281098
Sample: OU-002 Lab ID: 92281098002 Collected: 12/22/15 16:59 Received: 12/23/15 11:45 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
12/31/15 05:14
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
6.9 ug/L
5.0
1 12/24/15 18:30
12/29/15 00:05 7440-50-8
Lead
ND ug/L
5.0
1 12/24/15 18:30
12/29/15 00:05 7439-92-1
Zinc
13.4 ug/L
10.0
1 12/24/15 18:30
12/29/15 00:05 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
2.6
1
12/24/15 11:49
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc.. Page 4 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: November Stormwater
Pace Project No.: 92281098
Sample: OU-004 Lab ID: 92281098003 Collected: 12/22/15 17:10 Received: 12/23/15 11:45 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
12/31/15 05:15
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
44.8 ug/L
5.0
1 12/24/15 18:30
12/29/15 00:08 7440-50-8
Lead
ND ug/L
5.0
1 12/24/15 18:30
12/29/15 00:08 7439-92-1
Zinc
79.7 ug/L
10.0
1 12/24/15 18:30
12/29/15 00:08 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
2.5
1
12/24/15 11:49
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc.. Page 5 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: November Stormwater
Pace Project No.: 92281098
Sample: OU-006 Lab ID: 92281098004 Collected: 12/22/15 17:20 Received: 12/23/15 11:45 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
12/31/15 05:16
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
16.1 ug/L
5.0
1 12/24/15 18:30
12/29/15 00:11 7440-50-8
Lead
ND ug/L
5.0
1 12/24/15 18:30
12/29/15 00:11 7439-92-1
Zinc
66.9 ug/L
10.0
1 12/24/15 18:30
12/29/15 00:11 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
5.6
1
12/24/15 11:52
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc.. Page 6 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: November Stormwater
Pace Project No.: 92281098
QC Batch: GCSV/23716
Analysis Method:
EPA 1664B
QC Batch Method: EPA 1664E
Analysis Description:
1664 HEM, Oil and Grease
Associated Lab Samples: 92281098001, 92281098002, 92281098003, 92281098004
METHOD BLANK: 1639713
Matrix: Water
Associated Lab Samples: 92281098001, 92281098002, 92281098003, 92281098004
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Oil and Grease
mg/L
ND 5.0
12/31/15 05:12
LABORATORY CONTROL SAMPLE:
1639714
Spike LCS
LCS % Rec
Parameter
Units
Conc. Result
% Rec Limits Qualifiers
Oil and Grease
mg/L
40 37.8
94 78-114
MATRIX SPIKE SAMPLE:
1639715
92281201001 Spike
MS MS % Rec
Parameter
Units
Result Conc.
Result % Rec Limits Qualifiers
Oil and Grease
mg/L
ND 40
39.5 99 78-114
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc..
Page 7 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: November Stormwater
Pace Project No.: 92281098
QC Batch: MPRP/20379 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92281098001, 92281098002, 92281098003, 92281098004
METHOD BLANK: 1637297
Matrix: Water
Associated Lab Samples:
92281098001, 92281098002, 92281098003, 92281098004
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Copper
ug/L
ND 5.0
12/28/15 23:37
Lead
ug/L
ND 5.0
12/28/15 23:37
Zinc
ug/L
ND 10.0
12/28/15 23:37
LABORATORY CONTROL SAMPLE:
1637298
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
480 96 85-115
Lead
ug/L
500
468 94 85-115
Zinc
ug/L
500
457 91 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1637299
1637300
MS
MSD
92281031003
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
26.0
500
500
542
530
103
101
70-130
2
Lead ug/L
ND
500
500
491
488
98
98
70-130
1
Zinc ug/L
20.5
500
500
502
504
96
97
70-130
0
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1637301
1637302
MS
MSD
92280766004
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
2720
500
500
3300
3380
116
133
70-130
3 M1
Lead ug/L
ND
500
500
488
567
97
113
70-130
15
Zinc ug/L
862
500
500
1300
1410
88
109
70-130
8
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc..
Page 8 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: November Stormwater
Pace Project No.: 92281098
QC Batch: WET/42173
Analysis Method:
SM 2540D
QC Batch Method: SM 2540D
Analysis Description:
2540D Total Suspended Solids
Associated Lab Samples: 92281098001, 92281098002, 92281098003
METHOD BLANK: 1637248
Matrix:
Water
Associated Lab Samples: 92281098001, 92281098002, 92281098003
Blank
Reporting
Parameter
Units
Result
Limit
Analyzed Qualifiers
Total Suspended Solids
mg/L
ND
2.5 12/24/15 11:39
LABORATORY CONTROL SAMPLE:
1637249
Spike
LCS
LCS % Rec
Parameter
Units
Conc.
Result
% Rec Limits Qualifiers
Total Suspended Solids
mg/L
250
246
98 90-110
SAMPLE DUPLICATE: 1637250
92281034001
Dup
Parameter
Units
Result
Result
RPD Qualifiers
Total Suspended Solids
mg/L
ND
ND
SAMPLE DUPLICATE: 1637251
92280964001
Dup
Parameter
Units
Result
Result
RPD Qualifiers
Total Suspended Solids
mg/L
3.2
4.0 23 D6
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc.. Page 9 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: November Stormwater
Pace Project No.: 92281098
QC Batch: WET/42174
Analysis Method:
SM 2540D
QC Batch Method: SM 2540D
Analysis Description:
2540D Total Suspended Solids
Associated Lab Samples: 92281098004
METHOD BLANK: 1637259
Matrix:
Water
Associated Lab Samples: 92281098004
Blank
Reporting
Parameter
Units
Result
Limit
Analyzed Qualifiers
Total Suspended Solids
mg/L
ND
2.5 12/24/15 11:51
LABORATORY CONTROL SAMPLE: 1637260
Spike
LCS
LCS % Rec
Parameter
Units
Conc.
Result
% Rec Limits Qualifiers
Total Suspended Solids
mg/L
250
234
94 90-110
SAMPLE DUPLICATE: 1637261
92281098004
Dup
Parameter
Units
Result
Result
RPD Qualifiers
Total Suspended Solids
mg/L
ND
ND
SAMPLE DUPLICATE: 1637262
92281127001
Dup
Parameter
Units
Result
Result
RPD Qualifiers
Total Suspended Solids
mg/L
894
856 4
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc.. Page 10 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALIFIERS
Project: November Stormwater
Pace Project No.: 92281098
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
ANALYTE QUALIFIERS
D6 The relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits.
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 12/31 /2015 02:44 PM without the written consent of Pace Analytical Services, Inc.. Page 11 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: November Stormwater
Pace Project No.: 92281098
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
92281098001
OU-001
EPA 1664B
GCSV/23716
92281098002
OU-002
EPA 1664B
GCSV/23716
92281098003
OU-004
EPA 1664B
GCSV/23716
92281098004
OU-006
EPA 1664B
GCSV/23716
92281098001
OU-001
EPA 200.7
MPRP/20379
EPA 200.7
92281098002
OU-002
EPA 200.7
MPRP/20379
EPA 200.7
92281098003
OU-004
EPA 200.7
MPRP/20379
EPA 200.7
92281098004
OU-006
EPA 200.7
MPRP/20379
EPA 200.7
92281098001
OU-001
SM 2540D
WET/42173
92281098002
OU-002
SM 2540D
WET/42173
92281098003
OU-004
SM 2540D
WET/42173
92281098004
OU-006
SM 2540D
WET/42174
Date: 12/31 /2015 02:44 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Analytical
Batch
ICP/18384
ICP/18384
ICP/18384
ICP/18384
Page 12 of 14

fir uocument Name:
aceAna jca1' Sample Condition Upon Receipt(;
Document No.:
1 F-CHR-CS,008-rev,17
° Client Name: Project ff:
courier:e❑ d Ex UPS ❑USP5 EICIlent -
❑Comrnercia! ❑Pace - ❑Other:
uocument Revises: put;l,lulb
Page':f of Y: '
Issuing Authority:
Pace Huntersvilfe,QlYality Office
W0#:92281098
giuiiipuiimiuu
Custody Seal on Cooler/Box Present? ❑Yes ZJNo Seals Intact? ❑Yes X❑No J ,
Packing Material: ❑Bubble Wrap (❑Bubble Bags []None ❑Other:
Thermometer P T1505
Used: Type of ice: .�VJet ❑Blue ❑None ❑Samples an 9ce; cooling process has begun
;•
Cooler Temp Corrected (°C):� Biologics! Tissue.Frozen? ❑Yes ❑No N/A ! ` Z Temp should be above frep2ingto 6°C Correction Factor: 0,0 °C Date and Initials of Person Exam€ningontos. ? r
USDA Regulated Soil aNIA, water sample}
Did samples o inate in a quarantine zone within the United States: CA, NY, or 5C {check maps}? Did samples originate fra`m a foeign source (internationally,.
[]Yes o including Hawaii and Pue:f#n Ricg)3': Dyes No
k,
If Yes to either question, fill out a Regulated Soil Checklist and include with .SCUR/CDC papecgvork.
COMMENTS::
Chain of Custody Present?
Yes
[]No
❑N/A
1,
Chain of Custody Filled Out?
es
[]No
❑N/A
2.
Chain of Custody Relinquished?
es
[]No
❑NIA
3.
Sampler Name and/or Signature on COC7
Yes
❑No
❑N/A
4,
Samples Arrived within Hold Time?
es
❑No
❑N/A
S.
Short Hold Time Analysis (<72 hr)?
[]Yes
05,
[]NIA
6,
Rush Turn Around Time Requested?
o
❑N/A
7.
Sufficient Volume?
,❑,,d/yes
- Y s
❑No
❑N/A
8.
f
Correct Containers Used?
Yes
❑No
❑N/A
9.
-Pace Containers Used?
Yes
❑No
❑N/A
Containers Intact?
EAS
❑No
❑N A
10.
Filtered Volume Received for Dissolved Tests?
❑Y
[]No
N/A
11.
Note If sed€ment is visible in the d€s ved container
Sample Labels Match CDC?
ves
[]NO
El N/A
12.
�
-includes Date/Time/ID/Analysis Matrix:
All containers needing acid/base preservation have been
13'
checked?
Yes
❑No
❑N/A
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HNO3, H2SO4, HC[Q; NaOH >9 Sulfide, NaOH>12 Cyanide}
❑No
❑N/A
Exceptions; VOA, Coliform, TOC, Oil and Grease,
ZY
DRO/8015 (water) DOC,LLHg
[]No
1--]NIA
_. .
Samples checked for dechlorization
Yes
[]No
❑N A
14.
Headspace in VOA Vials (>5-6mm)?
❑Yes
[]No
NIA
15.
Trip Blank Present?
❑Yes
❑No
le N
16.
r r.
Trip Blank Custody Seals Present?
[2Yes
]—]NoN/A
Pace Trip Blank Lot # (if purchased):
CLIENT NOTIFICATf6N/RESOLUTION " i
Field Data�Bequ€red? ❑Yes ❑No
rJ
Person Contacted: Date/Time: 12 Z 7j 1 .:. :,� . .
Comments/Resolution: dn A) f mod
Project Manager SCURF Review: Nix _ �iln(l �� Date:
Note: Whenever there Is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Certi cation office (i.e. Out of
hold, incorrect preservative, out of temp, incorrect containers), Page 13 of 14

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Page 14 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
January 20, 2016
Mark Kennard
Watts Water Technologies
815 Pickens Street
Chesnee, SC 29323
RE: Project: Stormwater - January
Pace Project No.: 92282687
Dear Mark Kennard:
Enclosed are the analytical results for sample(s) received by the laboratory on January 12, 2016.
The results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Nicole Gasiorowski
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 1 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
Project: Stormwater - January
Pace Project No.: 92282687
Charlotte Certification IDs
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Certification #: 99006001
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
West Virginia Certification #: 357
Virginia/VELAP Certification #: 460221
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
West Virginia Certification #: 356
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc.. Page 2 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater - January
Pace Project No.: 92282687
Sample: OU- 001 Lab ID: 92282687001 Collected: 01/08/16 09:55 Received: 01/12/16 14:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
01/20/16 07:14
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
53.6 ug/L
5.0
1 01/13/1617:30
01/14/1616:29 7440-50-8
Lead
ND ug/L
5.0
1 01/13/1617:30
01/14/1616:29 7439-92-1
Zinc
36.0 ug/L
10.0
1 01/13/1617:30
01/14/1616:29 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
5.2
1
01/13/16 09:35
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 3 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater - January
Pace Project No.: 92282687
Sample: OU-002 Lab ID: 92282687002 Collected: 01/08/1610:10 Received: 01/12/1614:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
01/20/16 07:14
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
24.8 ug/L
5.0
1 01/13/1617:30
01/14/1616:32 7440-50-8
Lead
7.2 ug/L
5.0
1 01/13/1617:30
01/14/1616:32 7439-92-1
Zinc
22.0 ug/L
10.0
1 01/13/1617:30
01/14/1616:32 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
3.1
1
01/13/16 09:36
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 4 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater - January
Pace Project No.: 92282687
Sample: OU-004 Lab ID: 92282687003 Collected: 01/08/1610:15 Received: 01/12/1614:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
01/20/16 07:15
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
65.5 ug/L
5.0
1 01/13/1617:00
01/14/1619:04 7440-50-8
Lead
5.8 ug/L
5.0
1 01/13/1617:00
01/14/1619:04 7439-92-1
Zinc
109 ug/L
10.0
1 01/13/1617:00
01/14/1619:04 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
7.2 mg/L
3.3
1
01/13/16 09:37
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 5 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: Stormwater - January
Pace Project No.: 92282687
Sample: OU-006 Lab ID: 92282687004 Collected: 01/08/1610:22 Received: 01/12/1614:30 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
HEM, Oil and Grease
Analytical Method: EPA 1664E
Oil and Grease
ND mg/L
5.0
1
01/20/16 07:15
200.7 MET ICP
Analytical Method: EPA 200.7 Preparation
Method:
EPA 200.7
Copper
47.2 ug/L
5.0
1 01/13/1617:00
01/14/1619:13 7440-50-8
Lead
ND ug/L
5.0
1 01/13/1617:00
01/14/1619:13 7439-92-1
Zinc
113 ug/L
10.0
1 01/13/1617:00
01/14/1619:13 7440-66-6
2540D Total Suspended Solids
Analytical Method: SM 2540D
Total Suspended Solids
ND mg/L
2.5
1
01/13/16 09:37
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 6 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater - January
Pace Project No.: 92282687
QC Batch: GCSV/23846
Analysis Method:
EPA 1664B
QC Batch Method: EPA 1664E
Analysis Description:
1664 HEM, Oil and Grease
Associated Lab Samples: 92282687001, 92282687002, 92282687003, 92282687004
METHOD BLANK: 1650466
Matrix: Water
Associated Lab Samples: 92282687001, 92282687002, 92282687003, 92282687004
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Oil and Grease
mg/L
ND 5.0
01/20/16 07:11
LABORATORY CONTROL SAMPLE:
1650467
Spike LCS
LCS % Rec
Parameter
Units
Conc. Result
% Rec Limits Qualifiers
Oil and Grease
mg/L
40 37.7
94 78-114
MATRIX SPIKE SAMPLE:
1650468
92282919001 Spike
MS MS % Rec
Parameter
Units
Result Conc.
Result % Rec Limits Qualifiers
Oil and Grease
mg/L
ND 40
38.3 96 78-114
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc..
Page 7 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater - January
Pace Project No.: 92282687
QC Batch: MPRP/20464 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92282687001, 92282687002
METHOD BLANK: 1646195
Associated Lab Samples: 92282687001, 92282687002
Parameter Units
Copper ug/L
Lead ug/L
Zinc ug/L
Matrix: Water
Blank Reporting
Result Limit Analyzed
ND 5.0 01/14/1614:53
ND 5.0 01/14/1614:53
ND 10.0 01/14/1614:53
Qualifiers
LABORATORY CONTROL SAMPLE:
1646196
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
495 99 85-115
Lead
ug/L
500
472 94 85-115
Zinc
ug/L
500
456 91 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1646197
1646198
MS
MSD
92282581001
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
21.8
500
500
533
538
102
103
70-130
1
Lead ug/L
ND
500
500
423
418
84
83
70-130
1
Zinc ug/L
3.9J
500
500
418
412
83
82
70-130
1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1646199
1646200
MS
MSD
92282660003
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
357
500
500
860
880
100
104
70-130
2
Lead ug/L
17.5
500
500
457
460
88
89
70-130
1
Zinc ug/L
718
500
500
1150
1160
86
88
70-130
1
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 8 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater - January
Pace Project No.: 92282687
QC Batch: MPRP/20465 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92282687003, 92282687004
METHOD BLANK: 1646201
Associated Lab Samples: 92282687003, 92282687004
Parameter Units
Copper ug/L
Lead ug/L
Zinc ug/L
Matrix: Water
Blank Reporting
Result Limit Analyzed
ND 5.0 01/14/1618:58
ND 5.0 01/14/1618:58
ND 10.0 01/14/1618:58
Qualifiers
LABORATORY CONTROL SAMPLE:
1646202
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
498 100 85-115
Lead
ug/L
500
468 94 85-115
Zinc
ug/L
500
452 90 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1646203
1646204
MS
MSD
92282687003
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
65.5
500
500
561
576
99
102
70-130
3
Lead ug/L
5.8
500
500
467
475
92
94
70-130
2
Zinc ug/L
109
500
500
549
558
88
90
70-130
2
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1646205
1646206
MS
MSD
92282745010
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
29.1
500
500
543
542
103
102
70-130
0
Lead ug/L
ND
500
500
405
409
81
82
70-130
1
Zinc ug/L
25.1
500
500
442
451
83
85
70-130
2
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 9 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: Stormwater - January
Pace Project No.: 92282687
QC Batch: WET/42441
Analysis Method: SM 2540D
QC Batch Method: SM 2540D
Analysis Description: 2540D Total Suspended Solids
Associated Lab Samples: 92282687001, 92282687002, 92282687003, 92282687004
METHOD BLANK: 1645853
Matrix: Water
Associated Lab Samples: 92282687001, 92282687002, 92282687003, 92282687004
Blank Reporting
Parameter
Units
Result Limit Analyzed Qualifiers
Total Suspended Solids
mg/L
ND 2.5 01/13/16 09:34
LABORATORY CONTROL SAMPLE: 1645854
Spike LCS LCS % Rec
Parameter
Units
Conc. Result % Rec Limits Qualifiers
Total Suspended Solids
mg/L
250 228 91 90-110
SAMPLE DUPLICATE: 1645855
92282687001 Dup
Parameter
Units
Result Result RPD Qualifiers
Total Suspended Solids
mg/L
ND ND
SAMPLE DUPLICATE: 1645856
92282592001 Dup
Parameter
Units
Result Result RPD Qualifiers
Total Suspended Solids
mg/L
ND ND
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 10 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALIFIERS
Project: Stormwater - January
Pace Project No.: 92282687
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 01/20/2016 04:39 PM without the written consent of Pace Analytical Services, Inc.. Page 11 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: Stormwater - January
Pace Project No.: 92282687
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
92282687001
OU- 001
EPA 1664B
GCSV/23846
92282687002
OU- 002
EPA 1664B
GCSV/23846
92282687003
OU- 004
EPA 1664B
GCSV/23846
92282687004
OU- 006
EPA 1664B
GCSV/23846
92282687001
OU- 001
EPA 200.7
MPRP/20464
EPA 200.7
92282687002
OU- 002
EPA 200.7
MPRP/20464
EPA 200.7
92282687003
OU- 004
EPA 200.7
MPRP/20465
EPA 200.7
92282687004
OU- 006
EPA 200.7
MPRP/20465
EPA 200.7
92282687001
OU- 001
SM 2540D
WET/42441
92282687002
OU- 002
SM 2540D
WET/42441
92282687003
OU- 004
SM 2540D
WET/42441
92282687004
OU- 006
SM 2540D
WET/42441
Date: 01/20/2016 04:39 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Analytical
Batch
ICP/18464
ICP/18464
ICP/18465
ICP/18465
Page 12 of 14

Document Name: Document Revised: 260CT2015.
le Condition Upon Rece€pt(SCUR) Page 1 of 2
Document No.: Issuing Authority: =
F-CHR-CS-003-rev.17 Pace Huntersville Quality Office
Client Name:
Project#; 1 un* 9n#3Q*3CQ 1
Courier; []Fed Ex S ❑LISPS ❑Client
❑Commercial ❑Pace 00ther:
92282687
Custody Seal on Cooler/Box Present? ❑Mess No Seals Intact? []Yes []No
Packing Material: �15BUOS
le Wrap ❑ ui7B ble Ba s None
g ❑ ❑Other:
Thermometer
Used: Type of ice: Wet El Blue []None ❑ amS pies on ice, cooling process has begun
7
Cooler Temp Corrected (-Q. -7 Biological Tissue Frozen? []Yes ❑hia 0-
Temp should be above freezing to VC Correction Factor. 0.0 °C Date and Initials of Person Examining .Gontents:
USDA Regulated Soil (❑ N/A, water sample)
Did samples or€ irate in a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a,foreign.source {€nternationally,
❑Yes ❑NI including Hawaii and Puerto Rico)? []Yes ❑No —
If Yes to either question, fill out a Reeulated Soil Checklist and inrlima with Cri ipirnr nennm-0,
COMMENTS:
Chain of Custody Present?
Yes
❑No
❑N/A
1.
Chain of Custody Filled Out?
13 es
[-]No
❑N/A
2.
Chain of Custody Relinquished?
es
No
[I N/A
3.
Sampler Name and/or Signature on COC?
es
❑No
[I N/A
4.
Samples Arrived within Hold Time?
� " eY s
❑No
❑N/A
S.
Short Hold Time Analysis (<72 hr)?
❑Yes
El o
❑N/A
6.
Rush Turn Around Time Requested?
❑Yes
` No
❑N/A
7.
Sufficient Volume?
❑Yes
_-- No
❑N/A
8.
Correct Containers Used?
Yes
[]No
❑iv/A
9.
-Pace Containers Used?
es
❑No
❑N/A
Containers Intact?
0-Yes
[]No
❑N/A
10.
Filtered Volume Received for Dissolved Tests?
❑Yes
❑No
❑N/A
11, Note if sediment is visible in the dissolved container
Sample Labels Match COC?
es
❑No
❑N/A
12.
-Includes Date/Time/lD/Analysis Matrix: C
All containers needing acid/base preservation have been
checked?
❑Yes
[]No
❑N/A
13
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HNO3, HzSO4, HCI<2; NaOH >9 Sulfide, NaOH>12 Cyanide)
Yes
❑No
[]NIA
Exceptions: VOA, Coliform, TOC, Oil and Grease,
URO/8015 (water) DOC,LLHg
es
❑No
❑N/A
,
Samples checked for dechlorization
El Yes
❑No
❑ /A
14.
Headspace in VOA Vials (>5-6mm)?
❑Yes
[:]No
' N/
15,
Trip Blank Present?
Des
❑No
16.Trip
Blank Custody Seals Present?
[]Yes❑No
VIA
Pace Trip Blank lot 4 (if purchased):
CLIENT NOTIFICATION/RESOLUTION
Person Contacted:
Comments/Resolution:
Field DatI Required? Dyes ❑No
Date/Time:
Project Manager SCURF Review:LW6 Date; ( ?s j
Note: Whenever there is a discrepancy aff cting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Certification Office (i.e. Out of
hold, incorrect preservative, out of temp, incorrect containers). Page 13 of 14

ITEM #
n;
d
a
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Page 14 of 14

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
April 14, 2016
Mark Kennard
Watts Water Technologies
815 Pickens Street
Chesnee, SC 29323
RE: Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
Dear Mark Kennard:
Enclosed are the analytical results for sample(s) received by the laboratory on April 06, 2016. The
results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Nicole Gasiorowski
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 1 of 12

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc.. Page 2 of 12

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
Sample: ROAD RUNOFF-01 DC Lab ID: 92292668001 Collected: 04/01/16 07:10 Received: 04/06/16 11:00 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 16.3 ug/L 5.0 1 04/07/16 18:30 04/13/16 05:27 7440-50-8
Lead ND ug/L 5.0 1 04/07/16 18:30 04/13/16 05:27 7439-92-1
Zinc 63.8 ug/L 10.0 1 04/07/16 18:30 04/13/16 05:27 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 3 of 12

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
Sample: ROAD RUNOFF-02 DR Lab ID: 92292668002 Collected: 04/01/16 07:15 Received: 04/06/16 11:00 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 15.1 ug/L 5.0 1 04/07/16 18:30 04/13/16 05:30 7440-50-8
Lead ND ug/L 5.0 1 04/07/16 18:30 04/13/16 05:30 7439-92-1
Zinc 29.5 ug/L 10.0 1 04/07/16 18:30 04/13/16 05:30 7440-66-6
REPORT OF LABORATORY ANALYSIS
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Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 4 of 12

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
Sample: ROOF DRAIN #1 DOCK Lab ID: 92292668003 Collected: 04/01/16 07:20 Received: 04/06/16 11:00 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 221 ug/L 5.0 1 04/07/16 18:30 04/13/16 05:33 7440-50-8
Lead 69.2 ug/L 5.0 1 04/07/16 18:30 04/13/16 05:33 7439-92-1
Zinc 356 ug/L 10.0 1 04/07/16 18:30 04/13/16 05:33 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 5 of 12

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
Sample: ROOF DRAIN #2 EVAP Lab ID: 92292668004 Collected: 04/01/16 07:22 Received: 04/06/16 11:00 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 44.2 ug/L 5.0 1 04/07/16 18:30 04/13/16 05:37 7440-50-8
Lead 22.7 ug/L 5.0 1 04/07/16 18:30 04/13/16 05:37 7439-92-1
Zinc 197 ug/L 10.0 1 04/07/16 18:30 04/13/16 05:37 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 6 of 12

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
Sample: DIRECT RAINFALL Lab ID: 92292668005 Collected: 04/01/16 07:25 Received: 04/06/16 11:00 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 17.6 ug/L 5.0 1 04/07/16 18:30 04/13/16 05:40 7440-50-8
Lead ND ug/L 5.0 1 04/07/16 18:30 04/13/16 05:40 7439-92-1
Zinc 2270 ug/L 10.0 1 04/07/16 18:30 04/13/16 05:40 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 7 of 12

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
QC Batch: MPRP/21282 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92292668001, 92292668002, 92292668003, 92292668004, 92292668005
METHOD BLANK: 1704408
Matrix: Water
Associated Lab Samples:
92292668001, 92292668002, 92292668003, 92292668004, 92292668005
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Copper
ug/L
ND 5.0
04/13/16 04:00
Lead
ug/L
ND 5.0
04/13/16 04:00
Zinc
ug/L
ND 10.0
04/13/16 04:00
LABORATORY CONTROL SAMPLE:
1704409
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
463 93 85-115
Lead
ug/L
500
472 94 85-115
Zinc
ug/L
500
470 94 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1704410
1704411
MS
MSD
92292645001
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
ND
500
500
491
460
98
91
70-130
6
Lead ug/L
ND
500
500
492
497
98
99
70-130
1
Zinc ug/L
ND
500
500
546
544
107
107
70-130
0
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1704412
1704413
MS
MSD
92292645011
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
ND
500
500
440
451
87
90
70-130
3
Lead ug/L
ND
500
500
459
454
92
91
70-130
1
Zinc ug/L
ND
500
500
465
472
92
94
70-130
2
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 8 of 12

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALIFIERS
Project: SHORT-TERM RAINFALL
Pace Project No.: 92292668
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 9 of 12

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project:
Pace Project No.:
SHORT-TERM RAINFALL
92292668
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Batch
92292668001
ROAD RUNOFF-01 DC
EPA200.7
MPRP/21282
EPA200.7
ICP/19123
92292668002
ROAD RUNOFF-02 DR
EPA200.7
MPRP/21282
EPA200.7
ICP/19123
92292668003
ROOF DRAIN #1 DOCK
EPA200.7
MPRP/21282
EPA200.7
ICP/19123
92292668004
ROOF DRAIN #2 EVAP
EPA200.7
MPRP/21282
EPA200.7
ICP/19123
92292668005
DIRECT RAINFALL
EPA200.7
MPRP/21282
EPA200.7
ICP/19123
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/14/2016 03:01 PM without the written consent of Pace Analytical Services, Inc.. Page 10 of 12

Document Name:
Sample Condition Upon Recei
Ar7alytleal Document No.:
F-CHR-CS-003•rev.18
Document Revised: 18FEB2016
Page 1 of 2
Issuing Authority:
Pace Huntersviile Qualitv rlf-"
-� 9Z668
Client Name: �� C� cT� 1 42_a',''vtC)WQZ?•
Project t �+
aa 1111
Courier: [—]Fed Ex ❑UPS USPS []Client AW
❑ Commercial ❑Pace Other: toNN8
156
Custody Seal Present? [:]Yes[�No Seats Intact? []Yes NNo t 8i
Date/initials Person Examining Contents:
Packing Material: ❑Bubble Wrap Bubble Bags ❑None [-]Other:
Thermometer: N T150$ Type of Ice: Wet [—]Blue❑None []Samples on ice, cooling process has begun
❑
Correction Factor: 0.0°C Cooler Temp Corrected (°C): Lj ' U Biological Tissue Frozen? Dyes XNo ❑N/A
Temp should be above freezing to VC
USDA Regulated Soil (❑ N/A, water sample)
Did samples originate in a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a foreign source (internationally,
❑Yes ®No including Hawaii and Puerto Rico)? []Yes @No
COMMENTS:
Chain of Custody Present?
Yes
[:]No
❑N/A
1,
Chain of Custody Filled Out?
WYes
[:]No
[]N/A
2.
Chain of Custody Relinquished?
Yes
❑No
❑N/A
3.
Sampler Name and/or Signature an COC7
Yes
❑No
❑N/A
4.
Samples Arrived within Hold Time?
DgYes
❑No
[]N/A
5.
Short Hold Time Analysis (<72 hr.)?
❑Yes
No
❑N/A
6,
Rush Turn Around Time Requested?
❑Yes
RNo
[]N/A
7,
Sufficient Volume?
NYes
❑No
[]N/A
8.
Correct Containers Used?
PYes
❑No
[]N/A
9,
-Pace Containers Used?
®Yes
❑No
[]N/A
Containers Intact?
INYes
[:]No
❑N/A
10.
Filtered Volume Received for Dissolved Tests?
❑Yes
No
❑N/A
11. Note if sediment is visible in the dissolved container
Sample Labels Match COC?
[Yes
[]No
[--]N/A
12.
-Includes Date/Time/lD/Analysis Matrix:
All containers needing acid/base preservation have been
checked?
19Yes
❑No
[]N/A
13.
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HNO3, H2SO4, HCI<2; NaOH >9 Sulfide, NaOH>12 Cyanide)
79Yes
[:]No
❑N/A
Exceptions: VOA, Coliform, TOC, Oil and Grease,
DRO/8015 (water) DOC,LLHg
❑Yes
WNo
❑N/A
Samples checked for dechlorination
[-]Yes
UgNo
❑N/A
14.
Headspace in VOA Vials (>5-6mm)?
❑Yes
WNo
❑N/A
15.
Trip Blank Present?
[]Yes
IF No
❑N/A
16.
Trip Blank Custody Seals Present?
❑Yes
WNo
[--]N/A
Pace Trip Blank Lott (if purchased):
CLIENT NOTIFICATION/RESOLUTION
Person Contacted:
Comments/Resolution:
Date/Time:
Field Data Required? ❑Yes ❑No
Project Manager SCURF Review: niZ Date:
Project Manager SRF Review: n� V� 1 _ Date: l
Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Caro ina DEHNR Certification Office (i.e.
.Out of hold, incorrect preservative, out of temp, incorrect containers)
Page 11 of 12

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Page 12 of 12

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
April 28, 2016
Mark Kennard
Watts Water Technologies
815 Pickens Street
Chesnee, SC 29323
RE: Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Dear Mark Kennard:
Enclosed are the analytical results for sample(s) received by the laboratory on April 25, 2016. The
results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Nicole Gasiorowski
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 1 of 13

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc.. Page 2 of 13

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Sample: ROOF DRAIN #1 DOCK Lab ID: 92295021001 Collected: 04/22/16 13:25 Received: 04/25/16 10:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 10.4 ug/L 5.0 1 04/26/1616:30 04/27/1615:21 7440-50-8
Lead ND ug/L 5.0 1 04/26/1616:30 04/27/1615:21 7439-92-1
Zinc 46.9 ug/L 10.0 1 04/26/1616:30 04/27/1615:21 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 3 of 13

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Sample: ROOF DRAIN #2 EVAP Lab ID: 92295021002 Collected: 04/22/16 13:40 Received: 04/25/16 10:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 160 ug/L 5.0 1 04/26/1616:30 04/27/1615:34 7440-50-8
Lead 42.9 ug/L 5.0 1 04/26/1616:30 04/27/1615:34 7439-92-1
Zinc 260 ug/L 10.0 1 04/26/1616:30 04/27/1615:34 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 4 of 13

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Sample: ROAD RUN OFF-01 DC Lab ID: 92295021003 Collected: 04/22/16 13:50 Received: 04/25/16 10:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 42.6 ug/L 5.0 1 04/26/1616:30 04/27/1615:51 7440-50-8
Lead 6.7 ug/L 5.0 1 04/26/1616:30 04/27/1615:51 7439-92-1
Zinc 119 ug/L 10.0 1 04/26/1616:30 04/27/1615:51 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 5 of 13

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Sample: ROAD RUN OFF-02 DR Lab ID: 92295021004 Collected: 04/22/16 13:45 Received: 04/25/16 10:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 116 ug/L 5.0 1 04/26/16 16:30 04/27/16 20:48 7440-50-8
Lead 6.4 ug/L 5.0 1 04/26/16 16:30 04/27/16 20:48 7439-92-1
Zinc 224 ug/L 10.0 1 04/26/16 16:30 04/27/16 20:48 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 6 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Sample: DIRECT RAINFALL Lab ID: 92295021005 Collected: 04/22/16 14:30 Received: 04/25/16 10:50 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
200.7 MET ICP Analytical Method: EPA 200.7 Preparation Method: EPA 200.7
Copper 158 ug/L 5.0 1 04/26/16 16:30 04/27/16 20:56 7440-50-8
Lead 24.2 ug/L 5.0 1 04/26/16 16:30 04/27/16 20:56 7439-92-1
Zinc 350 ug/L 10.0 1 04/26/16 16:30 04/27/16 20:56 7440-66-6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 7 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
QC Batch: MPRP/21506 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92295021001, 92295021002, 92295021003
METHOD BLANK: 1719457
Matrix: Water
Associated Lab Samples:
92295021001, 92295021002, 92295021003
Blank Reporting
Parameter
Units
Result Limit
Analyzed Qualifiers
Copper
ug/L
ND 5.0
04/27/1613:50
Lead
ug/L
ND 5.0
04/27/1613:50
Zinc
ug/L
ND 10.0
04/27/1613:50
LABORATORY CONTROL SAMPLE:
1719458
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
498 100 85-115
Lead
ug/L
500
479 96 85-115
Zinc
ug/L
500
474 95 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1719459
1719460
MS
MSD
92295043002
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
ND
500
500
492
487
98
97
70-130
1
Lead ug/L
ND
500
500
440
434
87
86
70-130
1
Zinc ug/L
20.8
500
500
459
453
88
86
70-130
1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1719461
1719462
MS
MSD
92294969002
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
ND
500
500
486
496
97
99
70-130
2
Lead ug/L
ND
500
500
463
479
93
96
70-130
3
Zinc ug/L
3.7J
500
500
456
471
91
93
70-130
3
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 8 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
QC Batch: MPRP/21507 Analysis Method: EPA 200.7
QC Batch Method: EPA 200.7 Analysis Description: 200.7 MET
Associated Lab Samples: 92295021004, 92295021005
METHOD BLANK: 1719463
Associated Lab Samples: 92295021004, 92295021005
Parameter Units
Copper ug/L
Lead ug/L
Zinc ug/L
Matrix: Water
Blank Reporting
Result Limit Analyzed
ND 5.0 04/27/16 20:42
ND 5.0 04/27/16 20:42
ND 10.0 04/27/16 20:42
Qualifiers
LABORATORY CONTROL SAMPLE:
1719464
Spike
LCS LCS % Rec
Parameter
Units
Conc.
Result % Rec Limits Qualifiers
Copper
ug/L
500
487 97 85-115
Lead
ug/L
500
469 94 85-115
Zinc
ug/L
500
464 93 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1719465
1719466
MS
MSD
92295021004
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
116
500
500
612
611
99
99
70-130
0
Lead ug/L
6.4
500
500
480
478
95
94
70-130
0
Zinc ug/L
224
500
500
691
692
93
94
70-130
0
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
1719467
1719468
MS
MSD
92295114008
Spike
Spike
MS
MSD
MS
MSD
% Rec
Parameter Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD Qual
Copper ug/L
9.0
500
500
467
502
92
99
70-130
7
Lead ug/L
ND
500
500
443
472
88
94
70-130
6
Zinc ug/L
392
500
500
822
858
86
93
70-130
4
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 9 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALIFIERS
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether, Styrene, and Vinyl chloride.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 04/28/2016 02:56 PM without the written consent of Pace Analytical Services, Inc.. Page 10 of 13

aceAnalytical
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Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: SHORT TERM RAINFALL
Pace Project No.: 92295021
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
92295021001
ROOF DRAIN #1 DOCK
EPA200.7
MPRP/21506
EPA200.7
92295021002
ROOF DRAIN #2 EVAP
EPA200.7
MPRP/21506
EPA200.7
92295021003
ROAD RUN OFF-01 DC
EPA200.7
MPRP/21506
EPA200.7
92295021004
ROAD RUN OFF-02 DR
EPA200.7
MPRP/21507
EPA200.7
92295021005
DIRECT RAINFALL
EPA200.7
MPRP/21507
EPA200.7
Date: 04/28/2016 02:56 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Analytical
Batch
ICP/19312
ICP/19312
ICP/19312
ICP/19313
ICP/19313
Page 11 of 13

Document Name:
Document Revised: 18FEB2016
/55'ceAnalXical'
Sample Condition Upon Receipt(SCUR)
Page 1 of 2
Document No.:
Issuing Authority:
F-CHR-CS-003-rev.18
Pace Huntersville Quality Office
Page 2 of 2 for Internal Use ONLY
Sample Condition Upon Client Name: WO# ; 92295021
Receipt y Project #:
C L 004c_r
Courier: ❑Fed Ex ❑UPS ❑LISPS lient 111111111111111
IN ���❑ ❑ Commercial ❑Pace Other:
92295021
easS�ai-PrefnF? es NO No y^
Date/Initials Person Examining Contents:
Packing Material: ❑Bub a Wrap ❑Bubble Bags None ❑Other: I�
Thermometer; 1505 Wet slue g process h�NjAg
un ❑ Type ❑ ❑None Samples on ice cooling
Correction Factor 0.0°C Cooler Temp Corrected (°C): 1� Biological Tissue Frozen? ❑Yes ONO
Temp should be above fr ng to VC
USDA Regulated Soil [ N/A, water sample)
Did samples on ' ate in a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a foreign source (intern ' nally,
[—]Yes LKO including Hawaii and Puerto Rico)? ❑Yes ZNo
COMMENTS:
Chain of Custody Present?
ElYes
[:]No
❑N/A
1.
Chain of Custody Filled Out?
es
[:]No
❑N/A
2,
Chain of Custody Relinquished?
12 es
[:]No
❑N/A
3.
Sampler Name and/or Signature on COC?
2<
❑No
❑N/A
4.
Samples Arrived within Hold Time?
Yes
[--]No
❑N/A
5.
Short Hold Time Analysis (<72 hr.)?
❑Ves
[ to
❑N/A
6.
Rush Turn Around Time Requested?
Des
OK.
❑N/A
7,
Sufficient Volume?
es
[]No
❑N/A
8.
Correct Containers Used?
es
❑No
❑N/A
9.
-Pace Containers Used?
Lifes
No
❑N/A
Containers Intact?
Mfes
❑No
❑N/A
10.
Filtered Volume Received for Dissolved Tests?
El Yes
[--]No
❑ /A
11. Note if sediment is visible in the dissolved container
Sample Labels Match COC?
es
❑No
❑N/A
12.
-Includes Date/Time/ID/Analysis Matrix:
All containers needing acid/base preservation have been
checked?
- es
❑No
❑N/A
13.
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HNO3i H2SO4, HCI<2; NaOH >9 Sulfide, NaOH>12 Cyanide)
Yes
[:]No
❑N/A
Exceptions: VOA, Coliform, TOC, Oil and Grease,
DRO/8015
(water) DOC,LLHg
Dyes
❑No
N/A
Samples checked for dechlorination
❑Yes
❑No
DK/A
14.
Headspace in VOA Vials (>5-6mm)?
❑Yes
❑No
N/
15.
Trip Blank Present?
❑Yes
[]No
16.
Trip Blank Custody Seals Present?
❑Ves
[--]No
N/A
Pace Trip 81ank Lot tt (i€ purchased):
CLIENT NOTIFICATION/RESOLUTION Field Data Required? ❑Yes []No
Person Contacted: Date/Time:
Comments/Resolution:
Project Manager SCURF Review: Date.
Project Manager SRF Review: i� � YAI _ Date: (7-6 ! V
Note: Whenever there is a discrepancy affectin'dNorth Caroli compliance samples, a copyof this form will be sent to the North Carolina DERNR Certification Office (i.e.
.Out of hold, incorrect preservative, out of temp, incorrect containers)
Page 12 of 13

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A Pagj 13 of 13

APPENDIX C
REPRESENTATIVE OUTFALL STATUS REQUEST FORM

Division of Energy, Mineral & Land Resources
Stormwater Program
M National Pollutant Discharge Elimination System
Environmental REPRESENTATIVE OUTFALL STATUS (ROS)
nunlifii
FOR AGENCY USE ONLY
Date Received
Year
Month
Day
`.------- I IKEVU :a1 rvxlvl
If a facility is required to sample multiple discharge locations with very similar stormwater discharges, the
permittee may petition the Director for Representative Outfall Status (ROS). DEQ may grant Representative
Outfall Status if stormwater discharges from a single outfall are representative of discharges from multiple
outfalls. Approved ROS will reduce the number of outfalls where analytical sampling requirements apply.
If Representative Outfall Status is granted, ALL outfalls are still subject to the qualitative monitoring
requirements of the facility's permit —unless otherwise allowed by the permit (such as NCG020000) and DEQ
approval. The approval letter from DEQ must be kept on site with the facility's Storm water Pollution
Prevention Plan. The facility must notify DEQ in writing if any changes affect representative status.
For questions, please contact the DEQ Regional Office for your area (see page 3).
(Please print or type)
1) Enter the permit number to which this ROS request applies:
Individual Permit (or) Certificate of Coverage
N I C S I I I � ] I N I c G 10 3 0 2 5]
2) Facility Information:
Owner/Facility Name Watts Regulator
Facility Contact
Street Address
City
County
Telephone No.
Tiffany Crosby
100 Watts Road
Spindale
Rutherford
[phone]
State NC
E-mail Address
Fax: (910)
ZIP Code 28160
[e-mail]
824-9430
3) List the representative outfall(s) information (attach additional sheets if necessary):
Outfall(s) 002 is representative of Outfall(s) 001, 003, 004, 005, 006, 007
Outfalls' drainage areas have the same or similar activities?
Outfalls' drainage areas contain the same or similar materials?
Outfalls have similar monitoring results?
Outfall(s) is representative of Outfall(s)
Outfalls' drainage areas have the same or similar activities?
Outfalls' drainage areas contain the same or similar materials?
Outfalls have similar monitoring results?
Outfall(s) is representative of Outfall(s)
Outfalls' drainage areas have the same or similar activities?
Outfalls' drainage areas contain the same or similar materials?
Outfalls have similar monitoring results?
® Yes ❑ No
® Yes ❑ No
® Yes ❑ No ❑ No data*
❑ Yes
❑ No
❑ Yes
❑ No
❑ Yes
❑ No ❑ No data*
❑ Yes
❑ No
❑ Yes
❑ No
❑ Yes
❑ No ❑ No data*
*Non-compliance with analytical monitoring prior to this request may prevent ROS approval. Specific
circumstances will be considered by the Regional Office responsible for review.
Page 1 of 3
SWU-ROS-2009 Last revised 12/30/2009

Representative Outfall Status Request
4) Detailed explanation about why the outfalls above should be granted Representative Status:
(Or, attach a letter or narrative to discuss this information.) For example, describe how activities and/or
materials are similar.
Outfall 002 drains an area of the Watts Water Technologies facility which contains a portion of the eastern building. This eastern building is
currently used for warehousing of product, and no manufacturing occurs on -site. The area also includes a loading dock and a portion of the parking
lot for the facility, upon which trailers are sometimes stored. These structures represent the bulk of the Watts Water Technologies facility, and no
other significant material, structure, or activity is present on -site. Other outfalls for the facility have drainage areas which include runoff from the
adjacent roads and railroad, which have been linked to elevated metal concentrations in these outfalls. For this reason, Outfall 002 is the most
representative outfall for the Watts Water Technologies facility.
5) Certification:
North Carolina General Statute 143-215.6 B(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record,
report, plan, or other document filed or required to be maintained under this Article or a rule implementing this
Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case
under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device
or method required to be operated or maintained under this Article or rules of the [Environmental Management]
Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed
ten thousand dollars ($10,000).
1 hereby request Representative Outfall Status for my NPDES Permit. I understand that ALL outfalls are still
subject to the qualitative monitoring requirements of the permit, unless otherwise allowed by the permit
and regional office approval. I must notify DEQ in writing if any changes to the facility or its operations
take place after ROS is granted that may affect this status. If ROS no longer applies, I understand I must
resume monitoring of all outfalls as specified in my NPDES permit.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: Brad Bowen
Title: Operations Manager
01
(Signature of Applicant)
(Date igned)
Please note: This application for Representative Outfall Status is subject to
approval by the NCDEQ Regional Office. The Regional Office may inspect your
facility for compliance with the conditions of the permit prior to that approval.
Final Checklist for ROS Retluest
This application should include the following items:
❑ This completed form.
❑ Letter or narrative elaborating on the reasons why specified outfalls should be granted representative
status, unless all information can be included in Question 4.
❑ Two (2) copies of a site map of the facility with the location of all outfalls clearly marked, including the
drainage areas, industrial activities, and raw materials/finished products within each drainage area.
❑ Summary of results from monitoring conducted at the outfalls listed in Question 3.
❑ Any other supporting documentation.
Page 2 of 3
SWU-ROS-2009 Last revised 12/30/2009

Representative Outfall Status Request
Mail the entire package to:
NCDEQ DEMLR at the appropriate Regional Office (See map and
addresses below)
Notes
The submission of this document does not guarantee Representative Outfall Status (ROS) will be granted as
requested. Analytical monitoring as per your current permit must be continued, at all outfalls, until written
approval of this request is granted by DEQ. Non-compliance with analytical monitoring prior to this request
may prevent ROS approval. Specific circumstances will be considered by the Regional Office responsible for
review.
For questions, please contact the DEQ Regional Office for your area.
Asheville Regional Office
2090 U.S. Highway 70
Swannanoa, NC 28778
Washington Regional Office
943 Washington Square Mall
Phone [phone]
Washington, NC 27889
FAX [phone]
Phone [phone]
Fayetteville Regional Office
FAX [phone]
Systel Building,
225 Green St., Suite 714
Wilmington Regional Office
Fayetteville, NC 28301-5094
127 Cardinal Drive Extension
Wilmington, NC 28405
Phone [phone]
FAX [phone]
Phone [phone]
FAX [phone]
Mooresville Regional Office
610 East Center Ave.
Winston-Salem Regional Office
Mooresville, NC 28115
585 Waughtown Street
Winston-Salem, NC 27107
Phone [phone]
Phone [phone]
FAX [phone]
Water Quality Main FAX [phone]
Raleigh Regional Office
Central Office
1628 Mail Service Center
1612 Mail Service Center
Raleigh, NC 27699-1628
Raleigh, NC 27699-1612
Phone [phone]
Phone [phone]
FAX [phone]
FAX [phone]
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SWU-ROS-2009 Last revised 12/30/2009