18004_Tremont Redevelopment_VIMP Installation Report Buildings 3 & 4_2019.03.06

1 Via Email

March 6, 2019

NC Department of Environmental Quality
Brownfields Program
1646 Mail Service Center
Raleigh, NC 27699-1646

Attn: Ms. Joselyn Harriger, PG

Re: Vapor Mitigation System Installation Report – Building 3 and Building 4
Tremont Redevelopment
327 W. Tremont Avenue
Charlotte, North Carolina
Brownfields Project No. 18004-14-060
H&H Job No. POL-001

Dear Joselyn:

1.0 Introduction

On behalf of P7/PSREG Tremont, LLC (the prospective developer or PD), Hart & Hickman, PC
(H&H) has prepared this report to document vapor mitigation system (VMS) installation and
subsequent post-construction indoor air assessment activities completed at the Tremont
Redevelopment property located at 327 W. Tremont Avenue in Charlotte, Mecklenburg County,
North Carolina (Site or subject Site). A Brownfields Agreement between the North Carolina
Department of Environmental Quality (DEQ) and CCIP Tremont, LLC was finalized for the Site
in November 2015 (Brownfields Project No. 18004-14-060). The Site is comprised of
approximately 4.3 acres in the western portion of the approximately 7.7-acre CCIP Tremont,
LLC Brownfields property. A Site location map is provided as Figure 1, and the Site and
surrounding area are shown in Figure 2.
Ms. Joselyn Harriger, PG
March 6, 2019
Page 2

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
The Site is currently being redeveloped with a high-density residential apartment complex
identified as Tremont Apartments. The Brownfields Agreement for the Site does not allow first-
floor residential development. To resolve concerns expressed by the DEQ Brownfields Program
regarding first-floor residential use and allow redevelopment of the western portion of the
Brownfields property to include first-floor residential apartment units, H&H prepared a vapor
mitigation plan and revisions to the vapor mitigation plan based on DEQ comments. The Vapor
Mitigation Plan - Revision 2 (VMP) received DEQ Brownfields approval in a letter dated
January 4, 2017.

Construction of the Tremont Apartments is being completed in a phased approach with Building
2 and Buildings 5 through Building 8 completed for occupancy. In accordance with the
approved VMP, H&H completed indoor air assessment activities in representative first floor
residential units in Building 2 and within Building 5 through Building 8 after installation of the
VMS and prior to occupancy of the apartment complex by residents. Building locations within
the apartment complex are depicted on Figure 3.

The VMS installation activities and post-construction indoor air assessment activities for the
completed buildings have been documented in the reports prepared by H&H listed below:

 Building 2, Building 7, and Building 8 - Vapor Mitigation System Installation Report
dated October 10, 2018 – occupancy approval letter provided on November 9, 2018
 Building 6 - Vapor Mitigation System Installation Report-Building 6 dated November 20,
2018 - occupancy approval letter provided on December 17, 2018
 Building 5 - Vapor Mitigation System Installation Report Rev. 1 - Building 5 dated
January 21, 2019 - occupancy approval letter provided on January 22, 2019

Building 3 and Building 4 are the final buildings of the Tremont Apartments complex to be
completed for occupancy. Therefore, this report has been prepared to document installation of
the VMS and completion of post-construction effectiveness testing, and to request DEQ
Ms. Joselyn Harriger, PG
March 6, 2019
Page 3

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
Brownfields approval for occupancy into Building 3 and Building 4. Post-construction indoor
air samples were collected within Building 4 after installation of drywall and before finishing the
units with paint, carpet, or other products that could be indoor sources of the compounds of
potential concern identified at the Site. In accordance with the DEQ Brownfields approved
VMP, no indoor air samples are proposed for Building 3.

A summary of the VMS installation activities is provided in Section 2.0, a summary of the post-
construction indoor air assessment activities is provided in Section 3.0, a summary and
recommendations based on results of the assessment activities are provided in Section 4.0, and a
North Carolina Professional Engineer certification statement is provided as Section 5.0.

2.0 Vapor Mitigation System Installation

The VMS was installed during construction of the Tremont Apartments Building 3 and Building
4 in general accordance with the DEQ Brownfields approved VMP to reduce the potential for
vapor intrusion into occupied portions of the building. No significant deviations from the DEQ
Brownfields approved VMP were observed during VMS installation activities. As-built VMS
layout (Sheet V1.0) and as-built VMS specifications and details (Sheet V1.1) are presented in
Appendix A.

As indicated in Sheets V1.0 and V1.1, the VMS includes sub-slab vapor collection piping
installed beneath occupiable residential spaces located on the ground level of the apartment
buildings. The vapor intake piping is set within an approximately 4-inch thick permeable
aggregate layer installed beneath the concrete slabs of the buildings and connected by vertically-
oriented PVC pipe installed within above-slab walls and through the building roof to wind-
driven Empire Model TV04G turbine ventilator fans. In addition, a 15-mil vapor barrier
manufactured by Stego Industries LLC (Stego) is installed beneath occupiable spaces of the
building between the concrete floor slab and the aggregate beneath the slab. Stego vapor barrier
and Empire Model TV04G turbine ventilator fan manufacturer information documents are
included in Appendix B.
Ms. Joselyn Harriger, PG
March 6, 2019
Page 4

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
H&H conducted several VMS inspections during various phases of Building 3 and Building 4
construction to confirm the VMS was installed in accordance with the VMP. These inspections
were completed:
 prior to vapor barrier installation to inspect vapor collection piping;
 prior to concrete slab pour to inspect the vapor barrier;
 during concrete slab pour to observe for and reduce the potential for vapor barrier
damage;
 prior to installing sheetrock to inspect PVC conveyance pipe installed within the wall
system; and,
 after installation of the wind-driven fans on the building roof.

Based on observations made by H&H during installation inspections, the VMS was properly
installed in general accordance with the VMP and equipment/material manufacturer
recommendations. Photographs taken during the VMS inspections are included in Appendix C.

3.0 Indoor Air Assessment Activities

On January 2 and January 3, 2019, H&H collected indoor air samples (IAS-8 and IAS-9) within
representative first floor residential units (Unit 162 and Unit 138) located in Building 4 to
evaluate the effectiveness of the VMS. In addition, H&H collected an exterior background
ambient air sample (BAS-5) in a location upwind of the apartment complex during the indoor air
sampling event.

Results of the initial post-construction effectiveness testing activities indicated that trace levels
of trichloroethene (TCE) were unexpectedly detected in both the IAS-8 and IAS-9 indoor air
samples. Based on results of previous assessment activities completed at the Site including
results of previous post-construction effectiveness testing in other Site buildings, the TCE
detections are thought to be from an indoor source and not from structural vapor intrusion.
Therefore, H&H returned to the Site to collect confirmation samples within Building 4 on
Ms. Joselyn Harriger, PG
March 6, 2019
Page 5

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
January 30 and January 31, 2019. The indoor air and background ambient air sample locations
are shown in Figure 3.

The indoor air sampling events were conducted after installation of drywall, but prior to
finishing the units with paint, carpet, or other products that could be indoor sources of
compounds of potential concern. Indoor air samples were collected with the windows of the
buildings closed and ingress and egress activities minimized. The HVAC system for Building 4
was not operational during or before the indoor air assessment activities. However, temporary
propane heaters were used to control temperature within the Site buildings during the initial
sampling event and subsequent confirmation sampling event.

The indoor air assessment activities were conducted in general accordance with the DEQ
Brownfields approved VMP and the DEQ Division of Waste Management (DWM) Vapor
Intrusion Guidance (Guidance) dated March 2018. A copy of completed DEQ DWM Vapor
Intrusion Indoor Air Building Survey and Sampling Forms for each sampling event are provided
in Appendix D. A summary of the indoor air sampling activities and results is provided below.

3.1 Indoor Air Sampling Procedures

The background and indoor air samples were collected using 6-liter stainless steel Summa
sample canisters connected to in-line flow controllers with a vacuum gauge. The flow
controllers were set to collect the samples over an approximately 24-hour period. A 3-foot long
sampling cane was connected to the flow controller to position the sample intake point
approximately 5 ft above grade (typical breathing zone height) when the sample canister was set
on its base.

During the sampling activities, indoor/outdoor air pressure differential was measured using a
manometer sensitive to 0.001 inches of water. In addition, barometric pressure, exterior wind
speed, exterior wind direction, and indoor/outdoor temperature were recorded near the start,
Ms. Joselyn Harriger, PG
March 6, 2019
Page 6

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
middle, and end of the sampling period during each sampling event. Summary of the field
measurement data collected at the time of the indoor air sampling events is provided as Table 1.

For quality assurance purposes, H&H personnel periodically monitored the sample canisters to
prevent tampering or damage during each sampling event. Per laboratory standard operating
procedures, a vacuum was maintained within the canisters at the conclusion sampling activities.

Prior to and after the indoor and background air samples were collected, vacuum in each of the
canisters was measured using a laboratory supplied vacuum gauge and the vacuum
measurements were recorded on the sample chain-of-custody. The sample canisters were then
labeled with the sample identification, sample dates, apartment unit number, and shipped under
standard chain-of-custody protocols to Con-Test Analytical Laboratory (Con-Test) for analysis
of the following select volatile organic compounds (VOCs) by EPA Method TO-15: benzene,
sec-butylbenzene, 1,1-dichloroethane, 1,2-dichloroethane, 1,1-dichloroethene, cis-1,2-
dichloroethene, trans-1,2-dichloroethene, isopropylbenzene (cumene), naphthalene,
tetrachloroethene, trichloroethene, and vinyl chloride.

3.2 Indoor Air Sample Results

Results of indoor air and background air analyses are summarized in Table 2. The laboratory
analytical reports and chain-of-custody records are provided in Appendix E. Indoor air sample
analytical results were compared to the February 2018 DEQ DWM Indoor Air Screening Levels
(IASLs). The IASLs used for comparison to the analytical data are based upon a lifetime
incremental target potential carcinogenic risk (TCR) of 1 x 10-5 and a target hazard quotient
(THQ) of 0.2 for potential non-carcinogenic effects. The DEQ and EPA acceptable risk level
for cumulative potential carcinogenic risks is 1 x 10-4 and the acceptable level for cumulative
potential non-carcinogenic risks is a hazard index (HI) less than 1.

Indoor air sample IAS-8 and IAS-9 laboratory analytical results for the initial January 2 and
January 3, 2019 sampling event indicate that low-levels of benzene (up to 1.2 micrograms per
Ms. Joselyn Harriger, PG
March 6, 2019
Page 7

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
cubic meter [µg/m3]), naphthalene (up to 0.31 µg/m3), and tetrachloroethene or PCE (up to 0.26
µg/m3) were detected in each indoor air sample and in the background ambient air sample at
concentrations below the Residential IASLs. In addition, a low level of cumene (0.19 J µg/m3)
was detected in initial indoor air sample IAS-9 at a concentration below the Residential IASL.

Low levels of TCE were detected in both the IAS-8 (0.63 µg/m3) and the IAS-9 (0.14 J µg/m3)
indoor air samples collected on January 2 and January 3, 2019. The TCE concentration detected
in the IAS-8 indoor air sample slightly exceeds the Residential IASL of 0.42 µg/m3. TCE was
not detected at a concentration above the laboratory method detection limit in the initial BAS-5
background air sample. Results of previous sub-slab soil gas and exterior soil gas assessment
activities completed at the Site by others indicate that TCE has not been detected at
concentrations above laboratory method detection limits in soil gas in the vicinity of Building 4.
In addition, results of post-construction VMS effectiveness indoor air assessment activities have
not identified TCE at concentrations above the laboratory method detection limits within other
Tremont Apartment buildings. As such, the TCE detections in the initial IAS-8 and IAS-9
indoor air samples appear to be from an indoor source and not from structural vapor intrusion.

Due to the unexpected presence of TCE in initial indoor air samples IAS-8 and IAS-9, H&H
returned to the Site on January 30 and January 31, 2019 to collect confirmation indoor air
samples to further evaluate the effectiveness of the Building 4 VMS. In addition, H&H collected
an exterior background ambient air sample (BAS-5) in a location upwind of the apartment
complex during the indoor air sampling event. Confirmation indoor air samples IAS-8 and
IAS-9 were collected in the same apartment units as the initial sampling (Figure 3).
Confirmation background air and indoor air samples were collected using the same methodology
as described above in Section 3.1.

As shown in Table 2, laboratory analytical results indicate that low levels of benzene (up to 0.80
µg/m3) were detected at concentrations below the Residential IASLs in confirmation indoor air
samples IAS-8 and IAS-9 as well as confirmation background air sample BAS-5 (0.61 µg/m3).
Ms. Joselyn Harriger, PG
March 6, 2019
Page 8

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
In addition, low levels of naphthalene (0.27 J µg/m3) and PCE (0.42 µg/m3) were detected at
concentrations below the Residential IASLs in confirmation indoor air sample IAS-8, but were
not detected in indoor air sample IAS-9 or background air sample BAS-5. No compounds were
detected at concentrations exceeding the Residential IASLs in the confirmation indoor air
samples. TCE was not detected above the laboratory method detection limits in either
confirmation indoor air sample.

3.3 Indoor Air Risk Evaluation

To further evaluate potential exposure risks associated with the low-level compound
concentrations detected in the indoor air samples, H&H used the DEQ Residential-use Risk
Calculator (February 2018) to calculate the cumulative risks for post-construction samples
collected within Building 4. As a precautionary measure, the highest concentrations of any
compound detected in the IAS-8 and IAS-9 indoor air samples from either sampling event were
used in the risk evaluation to represent a hypothetical worst-case scenario.

Risk calculator results indicate that the hypothetical worst-case scenario cumulative lifetime
incremental carcinogenic risk (LICR) is 8.4 x 10-6 and the cumulative non-carcinogenic hazard
index (HI) is 0.45. The LICR and HI values for Building 4 are below 1 x 10-4 and 1,
respectively. Risk calculator results are included in Appendix F.

4.0 Summary and Recommendations

Installation of the VMS for Tremont Apartment buildings at the Tremont Redevelopment
Brownfields property located at 327 W. Tremont Avenue in Charlotte, Mecklenburg County,
North Carolina has been completed for Building 3 and Building 4. H&H provided oversight and
completed inspections during each stage of the VMS installation process. The VMS has been
installed for Building 3 and Building 4 in accordance with the DEQ Brownfields approved VMP.

Ms. Joselyn Harriger, PG
March 6, 2019
Page 9

S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness
Testing\final to client\Building 3 & 4\final to DEQ\VIMP Installation Report_Buildings 3 & 4_Tremont
Redevelopment (BPN 18044-14-060)_20190306.doc
To evaluate the effectiveness of the VMS, H&H completed post-construction indoor air
assessment activities within two first floor residential units in Building 4 upon completion with
drywall, but prior to finishing with paint, carpet, and other products that may be indoor sources
of compounds of concern at the Site. Due to unexpected detections of low level TCE
concentrations in the initial indoor air samples, H&H returned to the Site to collect confirmation
indoor air samples within Building 4.

Results of the confirmation indoor air sampling event indicate that TCE was not detected above
the laboratory method detection limits in either indoor air sample and no compounds were
detected above the Residential IASLs. In addition, results of hypothetical worst-case scenario
risk calculator results indicate that cumulative potential carcinogenic risks and cumulative
potential non-carcinogenic risks are below acceptable levels for residential-use. As such, H&H
concludes that the VMS is effectively mitigating potential structural vapor intrusion into the
Tremont Apartment complex.

Building 3 and Building 4 are the final buildings to be completed and are planned to be opened
for residential tenant occupancy in the very near future. Based on results of VMS inspections
and post-construction effectiveness testing, H&H requests that DEQ Brownfields provide
approval for occupancy into Building 3 and Building 4.
Table 1 Summary of Indoor Air Assessment Field Measurement DataTremont Redevelopment327 W. Tremont AvenueCharlotte, North CarolinaH&H Job No. POL-001TemperatureoFDifferential Pressure (inches H2O)TemperatureoFPrecipitation (inches)Barometric Pressure(in Hg)Wind DirectionWind Speed (mph)14:25 -29.5-- --62 0.0030.19 →NE 516:58 -27.5-- --57 0.0030.14 ↘NE 28:15 -13-- --50 0.5530.03 ↘-- Calm12:20 -9-- --53 0.5730.04 →W315:15 -6-- --56 0.5730.00 ↘SW 213:32 -30-- --36 0.0030.08S1214:02 -26.5-- --46 0.0030.08 →SSW 1416:38 -24-- --48 0.0030.10 ↗S78:09 -9-- --25 0.0030.41 ↗SE 610:32 -6.25-- --30 0.0030.42 ↗SE 414:30 -27 62 0.00016:50 -24.5 63 0.0008:20 -11 58 0.00012:25 -7 60 0.00014:25 -5 60 0.00010:02 -28 -- -0.02013:34 -25 -- -0.00916:28 -22 -- -0.0037:58 -8.5 -- -0.00310:02 -6.5 -- -0.00414:33 -29.5 62 0.00016:53 -27.5 64 0.0008:25 -15 60 0.00012:27 -12 62 -0.00115:50 -9 61 -0.00310:13 -29.5 ---0.02011:00 -28.75 -- -0.00313:40 -26 -- 0.00016:35 -23.5 -- 0.0008:05 -9 -- -0.00310:13 -6.75 -- -0.003Notes:Weather data collected with an on-Site weather station and recorded by H&H.Negative values for differential pressure measurements indicate that pressure indoors was negative relative to oudoor pressure at the time of the measurement.Arrows for baormetric pressure measaurements indicate rising or falling ambient pressure.Weather station data for indoor temperature at the time of sampling on January 30-31 is unavailable due to an equipment malfunction. Temperature within the building was estimated to be approxiamtely 60° F.Hg = mercury; mph = miles per hour; -- = Not ApplicableIAS-8IAS-91/2/20191/3/20191/3/20191/2/2019BAS-51/3/2019Sample Location Sample Sample DateOutdoorIndoorTimeSample Canister Vacuum1/30/20191/2/2019Upwind ExteriorBuilding 41/30/20191/31/20191/30/20191/31/20191/31/2019File: S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness Testing\final to client\Building 4\Tables and Calculators\Table 1 - weather data bldg 4Table 1 - weather data bldg 4Date: 2/18/2019Table 1 (Page 1 of 1)Hart & Hickman, PC
Table 2Summary of Indoor Air Analytical DataTremont Redevelopment337 W. Tremont AvenueCharlotte, North CarolinaH&H Job No. POL-001Benzenesec-Butylbenzene1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-DichloroetheneIsopropylbenzene (Cumene)NaphthaleneTetrachloroethene (PCE)Trichloroethene (TCE)Vinyl Chloride01/03/19 0.82<0.15 <0.043 <0.054 <0.056 <0.057 <0.056 <0.140.31 0.260.63<0.05701/31/19 0.80<0.15 <0.043 <0.054 <0.056 <0.057 <0.056 <0.140.27 J 0.42<0.076 <0.05701/03/19 1.2<0.15 <0.043 <0.054 <0.056 <0.057 <0.0560.19 J 0.27 0.20 J 0.14 J<0.05701/31/19 0.80<0.15 <0.043 <0.054 <0.056 <0.057 <0.056 <0.14 <0.14 <0.13 <0.076 <0.05701/03/19 0.73<0.15 <0.043 <0.054 <0.056 <0.057 <0.056 <0.140.17 J 0.24<0.076 <0.05701/31/19 0.61<0.15 <0.043 <0.054 <0.056 <0.057 <0.056 <0.14 <0.14 <0.13 <0.076 <0.0573.6 NS 18 1.1 42 NS NS 83 0.63 8.3 0.42 1.716 NS 77 4.7 180 NS NS 350 2.6 35 1.8 28Notes:1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Indoor Air and Crawlspace Screening Levels (IASLs) (February 2018)2) North Carolina DEQ DWM Non-Residential IASLs (February 2018)Reported detection limits are the laboratory method detection limit. Compound concentrations are reported in micrograms per cubic meter (µg/m3)NS = Not SpecifiedSampling Date Analytical Methodµg/m3138BAS-5 Background Ambient AirSample IDBuildong SampledSample LocationResidential IASLs(1)(TCR = 1 x 10-5 and THQ = 0.2)Non-Residential IASLs(2)(TCR = 1 x 10-5 and THQ = 0.2)TO-15IAS-8Building 4162IAS-9File: S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness Testing\final to client\Building 4\Tables and Calculators\Table 2 - Indoor Air dataTable 2 - Indoor Air dataDate: 2/18/2019Table 2 (Page 1 of 1)Hart & Hickman, PC
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE EAST, NORTH CAROLINA 1991
TITLE
PROJECT
SITE LOCATION MAP
TREMONT REDEVELOPMENT
337 W. TREMONT AVENUE
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
9-13-2018 0
1POL-001
SITE
REVISION NO. 1
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
JOB NO. POL-001
DATE: 9-24-18
FIGURE NO. 2
TREMONT REDEVELOPMENT
337 WEST TREMONT AVENUE
CHARLOTTE, NORTH CAROLINA
SITE MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
SITE PROPERTY BOUNDARY
W.TREMONT A
V
E
N
U
ES. TRYON ST
REET
HAWKI
N
S
S
T
R
E
E
T
RAMPART STREET
COREY
TRANSMISSION
SERVICE, INC.
SIGNS DESIGNED
UNIQUE BACKGROUND
SOLUTIONS
INNER PEAKS
CLIMBING CENTER
PETRO EXPRESS
CHARLOTTE RESTAURANT
DISTRIBUTORS
KEG-N-CUE
K9 PLAYLAND
GLOBAL MEDICAL
IMAGING INC.ULTIMATE CROSS-FIT
CAROLINA CLAY
CONNECTION
BIRD DECORATIVE
HARDWARE AND BATH
COMMON MARKET
SOUTHEND
DOUGHTON
MANUFACTURING
DILWORTH MATTRESS
COMPANY
THREE 30 FIVE
APARTMENTS
NOTE:
AERIAL BASEMAP OBTAINED FROM MECKLENBURG COUNTY GIS.S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\VMP\Figures\Sample Location Map.dwg, FIG 2, 9/24/2018 4:18:18 PM, erichardsonGAS FIRED
PRODUCTS
TREMONT CENTER(MULI-TENANT)
REF
Xref .\X_CIP WALL.dwgXref .\X_PRECAST.dwg
REVISION NO. 1
JOB NO. POL-001
DATE: 1-21-19
FIGURE NO. 3
TREMONT REDEVELOPMENT
327 WEST TREMONT AVENUE
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
SITE PROPERTY BOUNDARY
PREVIOUS MONITORING WELL
LOCATION
PREVIOUS INDOOR AIR SAMPLE
PREVIOUS SUB-SLAB SOIL-GAS
SAMPLE
PREVIOUS NEAR-SLAB SOIL-GAS
SAMPLE
PREVIOUS BACKGROUND AMBIENT AIR
SAMPLE LOCATION
PROPOSED INDOOR AIR SAMPLE
LOCATION
POST CONSTRUCTION INDOOR AIR
SAMPLE LOCATION
POST CONSTRUCTION BACKGROUND
AMBIENT AIR SAMPLE LOCATION
BUILDING NUMBER
NOTES:
1.PREVIOUS SAMPLE LOCATIONS OBTAINED FROM ECS
INDOOR AIR & SOIL GAS SAMPLING REPORT DATED
JULY 21, 2015.
2.BUILDING LAYOUT PROVIDED BY POOLE & POOLE
ARCHITECTURE OF MIDLOTHIAN, VA.
3.POST CONSTRUCTION INDOOR AIR SAMPLES IAS-1 AND IAS-2
COLLECTED BY H&H ON JUNE 28, 2018.
4.POST CONSTRUCTION INDOOR AIR SAMPLES IAS-3 THROUGH
IAS-5 COLLECTED BY H&H ON AUGUST 14, 2018.
5.POST CONSTRUCTION INDOOR AIR SAMPLE IAS-6 COLLECTED
BY H&H ON OCTOBER 10, 2018.
6.POST CONSTRUCTION INDOOR AIR SAMPLE IAS-7 COLLECTED
BY H&H ON NOVEMBER 16, 2018.
7.POST CONSTRUCTION INDOOR AIR SAMPLES IAS-8 AND IAS- 9
COLLECTED BY H&H ON JANUARY 3, 2019. CONFIRMATION
INDOOR AIR SAMPLES IAS-8 AND IAS-9 COLLECTED BY H&H
ON JANUARY 31, 2019.
PARKING DECK
PARKING
DECK
ACCESS
IAS-6
IAS-1
IAS-3
IAS-4
IAS-5
2
3
4 5
6
78
2
IA-3
A-2
IA-5
IA-6
IA-4
MW-3
MW-7
MW-4
MW-5 MW-6
SS-3
SS-5
SS-6
SS-4
SS-7
NS-6
NS-4
NS-7
NS-5
IA-2 SS-2 NS-2
MW-1
NS-3
SS-1
IA-1
A-1
NS-1
MW-2
BAS-1 / BAS-2/
BAS-5 (1/30/19 - 1/31/19)
BAS-3
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
IAS-7
BAS-4 /
BAS-5 (1/2/2019 - 1/3/2019)
IAS-8
IAS-9
S:\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness Testing\final to client\Building 4\Figures\Sample Location Map.dwg, FIG 3, 1/21/2019 12:20:41 PM, erichardson

Appendix A
As-Built VMS Layout - Sheet V1.0
As-Built VMS Details and Specifications - Sheet V1.1
REF3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA
3" DIA3" DIA3" DIA3"

D
I
A
3" DIA3" DIA
3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA3" DIA 3" DIA3" DIA3" DIA3" DIA
3" DIA
3" DIA3" DIAAS-BUILTVMS LAYOUTMARCH 6, 20193736 Winterfield Road, Suite 102Midlothian, Virginia 23113Telephone [phone]www.2pa.netNC FIRM #51972© 2016 Poole & Poole Architecture, LLCDrawings and specifications are and shall remain theproperty of Poole & Poole Architecture, LLC and shall notbe used or reproduced in whole or part in any formwithout prior written consent of Poole & PooleArchitecture, LLC.Drawing Title:Tremont Apartments
an Apartment Community by
Pollack Shores Real Estate Group
at 327 West Tremont Avenue, Charlotte, North Carolina 28203
ISSUED FOR CONSTRUCTIONV1.02923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyVapor Mitigation Plan Prepared By:PROFESSIONAL APPROVAL1VAPOR MITIGATION PLANV1.01" = 30'LEGENDRISER DUCT PIPE CONNECTION TO SUB-SLAB PIPE2" DIA SLOTTED SCH 40 PVC PIPE2" DIA SOLID SCH 40 PVC PIPE (UNLESS INDICATEDOTHERWISE)APPROXIMATE LOCATION OF TURBINE FAN ON BUILDINGROOF (SEE SPECIFICATION #3 ON SHEET V1.1 & DETAIL 8ON SHEET V1.1)SUB-SLAB PRESSURE MEASURING POINTNOTES:1.FINAL INSTALLATION AND INSPECTION OF VERTICAL RISERS AND FANSHAS NOT YET BEEN COMPLETED IN BUILDING 3. LOCATIONS SHOWNARE PROPOSED. UPDATED AS-BUILT WILL BE PROVIDED AFTERINSTALLATION IS COMPLETE.2.FOUNDATION PLAN AND DETAILS PROVIDED BY POOLE & POOLEARCHITECTURE OF MIDLOTHIAN, VA AND DAVIS & CHURCHSTRUCTURAL ENGINEERS OF ALPHARETTA, GA AND ARE SUBJECT TOCOPYRIGHT PROTECTION.3V1.12" PVC 45° ELBOW (TYPICALAT 45° TURNS IN SUB-SLABSLOTTED PIPE)8V1.12V1.11V1.1TYPICAL IN PORTIONS OF BUILDING WITH FIRSTFLOOR RESIDENTIAL LIVING/AMENITY SPACES2" X 2" X 3" PVC TEE(TYPICAL AT 3" SOLID TO 2" SLOTTED PIPECONNECTIONS)5V1.13V1.13V1.14V1.11V1.1TYPICAL IN PORTIONS OF BUILDING WITH FIRSTFLOOR RESIDENTIAL LIVING/AMENITY SPACES8V1.13V1.13V1.12V1.12" X 2" X 3" PVC TEE(TYPICAL AT 3" SOLID TO 2" SLOTTED PIPECONNECTIONS)2" PVC VENT PIPE PROTECTION SCREEN(TYPICAL AT ENDS OF SLOTTED PIPE)2V1.12V1.12V1.17V1.12V1.13V1.13V1.12" PVC VENT PIPE PROTECTION SCREEN(TYPICAL AT ENDS OF SLOTTED PIPE)2" X 2" X 3" PVC TEE(TYPICAL AT 3" SOLID TO 2"SLOTTED PIPE CONNECTIONS)6V1.17V1.12V1.13V1.16V1.15V1.1\\HHFS01\MasterFiles\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness Testing\Figure\VMP2019.dwg, V1.0, 3/7/2019 12:17:39 PM,SVincent
VMS VAPOR LINER AND BASE COURSE (TYP)1V1.1VMS SLOTTED COLLECTION PIPE (TYP)2V1.1BASE COARSE - CLEAN #57 OR #67 STONE,MIN 4" THICK BENEATH VMS VAPOR LINERVAPOR LINER (SEE SPECIFICATION #1)2" SCH 40 THREADED FLUSH JOINTSLOTTED PVC PIPE (0.020" SLOT WIDTH,1/8" SLOT SPACING) WITH FILTER SOCKSET WITHIN MIN 4" BASE COURSEFLOOR CLEANOUT, ADJUSTABLE,2" DIA ZURN INDUSTRIESMODEL #CO2450-PV2 (OR EQUIVALENT)VAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS2" PVC 90 DEGREE ELBOWVAPOR LINER (SEE SPECIFICATION #1)TOP OF THICKENEDSLAB TURNDOWNVMS PRESSURE MEASURING POINT THRU THICKENED SLAB (TYP)8V1.1CONCRETE FLOOR SLABSUBBASESUBBASEVAPOR LINER PENETRATION SEALEDTO PIPE PER MANUFACTURERINSTRUCTIONSSOLID TO SLOTTED 2" SCH 40PVC PIPE TRANSITION (SLIP COUPLINGOR THREADED JOINT)STUD WALL(NOT PRESENT IN ALL LOCATIONS)VAPOR LINERBENEATH THICKENED SLABVMS AT HORIZONTAL PIPE THRU THICKENED SLAB (TYP)3V1.1TOP OF THICKENEDSLAB TURNDOWNFIRE WALL (NOT PRESENTIN ALL LOCATIONS)FLOOR CLEANOUT, ADJUSTABLE,2" DIA ZURN INDUSTRIESMODEL #CO2450-PV2 (OR EQUIVALENT)VAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS2" PVC 90 DEGREE ELBOW2" VENT PIPEPROTECTION SCREENVMS PRESSURE MEASURING POINT (TYP)7V1.12" VENT PIPEPROTECTION SCREENNTSNTSNTSNTSVMS AT VERTICAL SLAB PENETRATION (TYP)5V1.1NTSVAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS3" PVC 90 DEGREE ELBOWSTUD WALL/DEAD SPACE3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #2)BASE COARSE(SEE SPECIFICATION #1)BASE COARSE(SEE SPECIFICATION #1)BASE COARSE(SEE SPECIFICATION #1)BASE COARSE(SEE SPECIFICATION #1)NTSVMS TURBINE VENTILATOR FAN & EXHAUST9V1.1NTSTURBINE FANELECTRICAL JUNCTION BOX FORFUTURE VACUUM FAN(IF NEEDED)4" X 3" PVC COUPLING3" PVC DUCT PIPE THROUGH ROOFFLASHINGROOFTOPVAPOR LINER PENETRATION SEALEDTO PIPE PER MANUFACTURERINSTRUCTIONSSOLID TO SLOTTED 2" SCH 40PVC PIPE TRANSITION (SLIP COUPLINGOR THREADED JOINT)VAPOR LINERBENEATH THICKENED SLABVMS AT HORIZONTAL PIPE THRU RAMP SLAB4V1.1TOP OF THICKENEDSLAB TURNDOWNBASE COARSE(SEE SPECIFICATION #1)NTSVAPOR LINER PENETRATION SEALEDTO PIPE PER MANUFACTURERINSTRUCTIONSVAPOR LINERBENEATH THICKENED SLABVMS AT VERTICAL SLAB PENETRATION AT THICKENED SLAB (TYP.)6V1.1TOP OF THICKENEDSLAB TURNDOWNNTSSTUD WALL/DEAD SPACE3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #2)BASE COARSE(SEE SPECIFICATION #1)3" PVC 90 DEGREE ELBOWAS-BUILT VMS DETAILS ANDSPECIFICATIONSMARCH 6, 2019NOTE: FOUNDATION PLAN AND DETAILS PROVIDED BY POOLE & POOLE ARCHITECTURE OFMIDLOTHIAN, VA AND DAVID & CHURCH STRUCTURAL ENGINEERS OF ALPHARETTA, GA FORREFERENCE AND ARE SUBJECT TO COPYRIGHT PROTECTION.3736 Winterfield Road, Suite 102Midlothian, Virginia 23113Telephone [phone]www.2pa.netNC FIRM #51972© 2016 Poole & Poole Architecture, LLCDrawings and specifications are and shall remain theproperty of Poole & Poole Architecture, LLC and shall notbe used or reproduced in whole or part in any formwithout prior written consent of Poole & PooleArchitecture, LLC.Drawing Title:ISSUED FOR CONSTRUCTIONV1.12923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyVapor Mitigation Plan Prepared By:PROFESSIONAL APPROVALTremont Apartments
an Apartment Community by
Pollack Shores Real Estate Group
at 327 West Tremont Avenue, Charlotte, North Carolina 28203 VAPOR MITIGATION SYSTEM (VMS) SPECIFICATIONS1. VMS VAPOR LINER INCLUDES STEGO WRAP 15-MIL VAPOR BARRIER MANUFACTURED BYSTEGO INDUSTRIES LLC VAPOR LINER WAS INSTALLED PER MANUFACTURERINSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW FLOOR SLABSLOCATED IN LOWER LEVEL RESIDENTIAL LIVING AND RESIDENTIAL AMENITY BUILDINGSPACES. A MINIMUM 4-INCH THICK BASE COURSE CONSISTING OF CLEAN #57 OR #67STONE WAS INSTALLED BENEATH THE VMS VAPOR LINER.2. VMS PIPING WAS NOT TRAPPED AND WAS SLOPED A MINIMUM OF 18 UNIT VERTICAL IN 12UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN. PVC PIPE JOINTS WERE CONNECTEDUSING PVC SOCKET COUPLINGS AND PVC GLUE. SUB-SLAB SLOTTED VAPOR COLLECTIONPIPE CONSISTS OF THREADED FLUSH JOINT 2" SCH 40 PVC PIPE WITH 0.020" SLOT WIDTHAND 18" SLOT SPACING. FABRIC FILTER SOCK WAS INSTALLED OVER SLOTTED PIPESECTIONS. ABOVE-SLAB RISER DUCT PIPING WAS IDENTIFIED WITH HIGH VISIBILITYYELLOW PAINT AND LABELED WITH "VAPOR MITIGATION SYSTEM" WITHIN EACH FLOORLEVEL AND ABOVE THE ROOF LINE. 3" PVC RISER DUCT PIPING WAS INSTALLED TOCONNECT EACH SLAB PENETRATION LOCATION TO A ROOFTOP EXHAUST DISCHARGEPOINT WITH TURBINE FAN (SEE SPECIFICATION #3). ABOVE-SLAB RISER DUCT PIPE RUNSBETWEEN THE SLAB PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE WEREINSTALLED PER APPLICABLE BUILDING CODE AND AS SPECIFIED IN THE CONSTRUCTIONDOCUMENTS AND DRAWINGS.3. RISER DUCT PIPING EXTENDS IN A VERTICAL ORIENTATION THROUGH THE BUILDINGROOF AND TERMINATES A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. A EMPIREMODEL TV04G TURBINE VENTILATOR FAN (OR APPROVED ALTERNATE) WAS INSTALLED ONTHE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. A 4" X 3" PVC ADAPTORCOUPLING WAS INSTALLED AT THE DISCHARGE END OF THE 3" RISER DUCT PIPE AND THEFAN WAS SECURED TO THE PVC IN A VERTICAL ORIENTATION. EXHAUST DISCHARGELOCATIONS ARE LOCATED MINIMUM OF 10 FT FROM ANY OPERABLE OPENING OR AIRINTAKE INTO THE BUILDING.\\HHFS01\MasterFiles\AAA-Master Projects\Pollack Shores\POL-001 Tremont Redevelopment\Post Construction Effectiveness Testing\Figure\VMP2019.dwg, V1.1, 3/7/2019 12:18:12 PM,SVincent

Appendix B
Vapor Barrier and VMS Fan Manufacturer Information
Stego Industries, LLC ‹San Clemente, CA
Tel: [phone] ‹ Toll Free: 877-464-7834 ‹ Fax: [phone]
www.stegoindustries.com
STEGO ® WRAP VAPOR BARRIER
ASTM E 1745 Class A-B-C Compliant
is made with our proven trade
secret blend of prime virgin resins
and additives. Stego Wrap Vapor
Barrier is an ASTM E 1745 Class A
Vapor Barrier (Below 0.01 perms).
We focus on producing a product
that will maintain its extremely low
permeance for the life of a building.
The protection of Stego Wrap Vapor
Barrier provides the flexibility to
change flooring types and overall
building use without worrying about
below-slab moisture vapor.
STEGO® WRAP
VAPOR BARRIER
FEATURES & BENEFITS
Unsurpassed Permeance
Characteristics
Life of the Building
Protection
Exceptional Tear and Puncture
Resistance
Easy, Reliable Installation
Competitively Priced
Available Nationwide
Local Support
SUPERIOR DEFENSE Against Floor Failures:
Experts say “the need for a vapor barrier (as opposed to a vapor retarder) is becoming
increasingly clear.” Concrete Construction Magazine, August 2003, p.18.
Infiltration of moisture through concrete slabs is a major building defect liability.
Stego Wrap Vapor Barrier has an extremely low permeance preventing water vapor,
soil gases (i.e. Radon), alkaline salts and soil sulfates from compromising the integrity
of the building envelope and leading to serious problems with the concrete slab, floor
coverings and indoor air quality. Stego Wrap Vapor Barrier is the best protection
against these costly failures.
MOLD PREVENTION:
Mold needs three things to survive: moisture, sustained temperature (between 50° and
122° F), and a food source (dust, drywall, etc.). In any given building environment,
contractors can only control one of these variables: moisture. Mold spores are present
in 100% of building interiors. If moisture is allowed into your building environment,
mold can and will grow. Toxic molds like Stachybotyrus can be fatal for nearly 5% of
people (Institute of Medicine 1993), and cause a variety of serious health problems
in others. Several recent well-publicized cases involving toxic mold have resulted
in multimillion-dollar insurance settlements. Many of the nation's leading Insurance
companies have severely limited or removed coverage for mold claims fearing that
these claims will bankrupt their companies. Now more than ever, it is critically
important that extra attention be paid to preventing the intrusion of moisture vapor
from your below-slab environment. Stego Wrap Vapor Barrier offers the level of
protection that many architects are now seeking and is considered to be inexpensive
insurance against these costly failures.
LONGEVITY AND STRENGTH:
Stego Wrap Vapor Barrier is NOT made with recycled materials and will not degrade.
Prime, virgin resins are the key. Molecules within Stego Wrap "interlock" to provide
strength, durability and unprecedented resistance to moisture vapor and radon gas.
Stego Wrap’s puncture resistance is excellent. Stego Wrap will not tear, crack, flake,
snag or puncture, even when 18,000 lb. laser-screed machines are driving directly
across the barrier (see the reverse side for Stego Wrap Vapor Barrier’s specifications).
THE STEGO® ADVANTAGES
INSTALLATION INSTRUCTIONS: (Based on ASTM E 1643)
Unroll Stego Wrap over the area where the slab is to be placed. Stego
Wrap should completely cover the concrete placement area. Overlap
seams 6 inches and tape using Stego Tape. All penetrations and
blockouts should be sealed using a combination of Stego Wrap,
Stego Tape and/or Stego Mastic. If the Stego Wrap is damaged,
cut a piece from the Stego Wrap roll, place over the damaged area,
and tape around all edges. Concrete may be placed directly on Stego
Wrap. For additional information, please refer to Stego's complete
installation instructions.
STEGO ® TAPE:
STEGO WRAP RED POLYETHYLENE TAPE (3.75” x 180’/roll) is specially designed to seal seams and penetrations
on Stego Wrap installations. The acrylic, pressure-sensitive adhesive provides permanent bonding and quick-stick
properties. The area to be bonded should be free of dust, dirt and moisture.
WARRANTY:
STEGO INDUSTRIES, LLC believes, to the best of its knowledge, that specifications and recommendations herein
are accurate and reliable. However, since site conditions and installations are not within our control, STEGO
INDUSTRIES, LLC does not guarantee results from use of the information provided and disclaims all liability from
any loss or damage. NO WARRANTY EXPRESS OR IMPLIED IS GIVEN AS TO THE MERCHANTABILITY, FITNESS FOR PARTICULAR
PURPOSE, OR OTHERWISE WITH RESPECT TO THE PRODUCTS REFERRED TO.
Note: Test results above are for Stego Wrap products made as of March 15, 2013. If you have product made prior to March 15, 2013, please refer to
Stego literature dated 10/12 for representative test results or call your local Stego Representative with questions.
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
Stego Industries, LLC ‹San Clemente, CA
Tel: [phone] ‹ Toll Free: 877-464-7834 ‹ Fax: [phone] ‹ www.stegoindustries.com 04/2013
Note: perm unit = grains/(ft2 *hr* in.Hg) * WVTR = water vapor transmission rate **GTR = Gas Transmission Rate
STEGO ® WRAP VAPOR BARRIER SPECIFICATIONS
PROPERTIES TEST METHOD ASTM E 1745 TEST RESULT EXPLANATION
Class A Requirements Permeance ASTM F 1249 0.1 perms 0.0086 perms Very impermeable * 0.0036 WVTR to water vapor Puncture Resistance ASTM D 1709 2200 grams Method B 2266 grams Resistant to puncturing from construction abuse Tensile Strength ASTM D 882 45.0 lbf./in. 70.6 Ibf./in. Will not tear easily
ASTM E 154 0.1 perms 0.0098 perms Permeance after wetting, drying, Permeance section 8 and soaking ASTM E 154 0.1 perms 0.0091 perms Permeance after heat After section 11 conditioning
ASTM E 154 0.1 perms 0.0097 perms Permeance after low Conditioning section 12 temperature conditioning
(ASTM E 1745 Sections ASTM E 154 0.1 perms 0.0095 perms Permeance after soil 7.1.2 - 7.1.5) section 13 organism exposure
Methane Transmission ASTM D 1434 **GTR = 192.8 Greatly impedes the Rate mL(STP)/m2*day transmission of methane gas
Radon Diffusion 5.5 x 10-14m2/second Greatly impedes the Coefficient transmission of radon gas
Thickness 15 mils Stronger, tougher and less permeable than much thicker membranes Roll Dimensions 14 ft. X 140 ft. 1,960 ft2/roll - allows for a minimum of seams
Roll Weight 140 lbs. Easy to unroll and install
STEGO WRAP VAPOR BARRIER
VAPOR BARRIER
STEGOWRAP
CONCRETE SLAB
Rebar
SUBGR
A
D
E
1. Product Name
Stego Wrap Vapor Barrier
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: Stego Wrap Vapor Barrier is used
as a below-slab vapor barrier.
COMPOSITION: Stego Wrap Vapor
Barrier is a multi-layer plastic extrusion
manufactured with only high grade
prime, virgin, polyolefin resins.
ENVIRONMENTAL FACTORS:
Stego Wrap Vapor Barrier can be used
in systems for the control of soil gases
(radon, methane), soil poisons (oil
by-products) and sulfates.
Vapor Retarders
07 26 00, 03 30 00
5. Installation
UNDER SLAB: Unroll Stego Wrap Vapor
Barrier over an aggregate, sand or
tamped earth base. Overlap all seams
a minimum of six inches and tape using
Stego Tape or Crete Claw® Tape. All
penetrations must be sealed using a
combination of Stego Wrap and Stego
accessories.
For additional information, please
refer to Stego's complete installation
instructions.
6. Availability & Cost
Stego Wrap Vapor Barrier is available
nationally via building supply dis-
tributors. For current cost information,
contact your local Stego Wrap dis-
tributor or Stego Industries’ sales
department.
7. Warranty
Stego Industries, LLC believes to the
best of its knowledge, that specifica-
tions and recommendations herein are
accurate and reliable. However, since
site conditions are not within its control,
Stego Industries does not guarantee
results from the use of the information
provided and disclaims all liability
from any loss or damage. No warranty,
express or implied, is given as to the
merchantability, fitness for a particular
purpose, or otherwise with respect to
the products referred to.
8. Maintenance
None required.
9. Technical Services
Technical advice, custom CAD drawings,
and additional information can be
obtained by contacting Stego Industries’
technical assistance department or via
the website.
10. Filing Systems
™HiZ\d>cYjhig^Zh¼lZWh^iZ
™7j^aYh^iZ
™)HeZXh
STEGO INDUSTRIES, LLC
Stego® Wrap Vapor Barrier
04/2013Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
TABLE 1: PHYSICAL PROPERTIES OF STEGO WRAP VAPOR BARRIER
PROPERTY TEST RESULTS
Under Slab Vapor Retarders ASTM E 1745 Class A, B & C – Standard Specification for Water Vapor Retarders Used
in Contact with Soil or Granular Fill under Concrete Slabs Exceeds Class A, B & C
Water Vapor Permeance ASTM F 1249 – Test Method for Water Vapor Transmission Rate Through Plastic Film and 0.0086 perms
Sheeting Using a Modulated Infrared Sensor *0.0036 WVTR
Puncture Resistance ASTM D 1709 – Test Methods for Impact Resistance of Plastic Film by Free-Falling
Dart Method 2266 grams
Tensile Strength ASTM D 882 – Test Method for Tensile Properties of Thin Plastic Sheeting 70.6 lbf/in.
Permeance After Conditioning ASTM E 154 Section 8, F 1249 – Permeance after wetting, drying, and soaking 0.0098 perms
(ASTM E 1745 ASTM E 154 Section 11, F 1249 – Permeance after heat conditioning 0.0091 perms
Sections 7.1.2 - 7.1.5) ASTM E 154 Section 12, F 1249 – Permeance after low temperature conditioning 0.0097 perms
ASTM E 154 Section 13, F 1249 – Permeance after soil organism exposure 0.0095 perms
Methane Transmission Rate ASTM D 1434 – Standard Test Method for Determining Gas Permeability Characteristics **192.8 GTR
of Plastic Film and Sheeting mL(STP)/m2*day
Radon Diffusion Coefficient 5.5 x 10-14m2/second
Thickness ACI 302.1R-04 – Minimum Thickness (10 mils) 15 mils
Roll Dimensions 14 ft. wide x 140 ft. long
or 1,960 ft2
Roll Weight 140 lbs.
Note: perm unit = grains/(ft2 *hr* in.Hg) * WVTR = Water Vapor Transmission Rate ** GTR = Gas Transmission Rate
Note: Test results above are for Stego Wrap products made as of March 15, 2013. If you have product made prior to March 15, 2013 please refer to Stego literature dated
10/12 for representative test results or call your local Stego Representative with questions.
4. Technical Data
1. Product Name
Stego Mastic
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: Stego Mastic is designed to be
used as a waterproofing and vapor
retardant membrane for use in
conjunction with Stego Wrap 10-mil and
15-mil Vapor Retarder/Barrier. Stego
Mastic can be used as an alternate to
boots for pipe penetrations in Stego
Wrap Vapor Barrier.
COMPOSITION: Stego Mastic is a
medium-viscosity, water-based,
polymer-modified anionic bitumin-ous/
asphalt emulsion, which exhibits
bonding, elongation and water-proofing
characteristics.
SIZE: Stego Mastic comes in five-gallon
buckets.
4. Technical Data
APPLICABLE STANDARDS:
American Society for Testing and
Materials (ASTM)
™6HIB 9 )&' HiVcYVgY IZhi BZi]dY
for Vulcanized Rubber and Therm-
oplastic Elastomers - Tension
™6HIB:&*)HiVcYVgYIZhiBZi]dYh
for Water Vapor Retarders Used in
Contact with Earth under Concrete
Slabs, on Walls, or as Ground Cover
™ 6HIB < '( EgVXi^XZ [dg DeZgVi^c\
Light-Exposure Apparatus (Carbon-
Arc Type) With and Without Water for
Exposure of Nonmetallic Materials
(Withdrawn 2000)
™ 6HIB : .+ HiVcYVgY IZhi BZi]dYh
for Water Vapor Transmission of
Materials
™ 6HIB9,*&HiVcYVgYIZhiBZi]dYh
for Coated Fabrics
™ 6HIB9&)()HiVcYVgYIZhiBZi]dY
for Determining Gas Permeability
Characteristics of Plastic Film and
Sheeting
™ 6HIB 8 -(+ HiVcYVgY HeZX^[^XVi^dc
for High Solids Content, Cold Liquid-
Applied Elastomeric Water-proofing
Vapor Retarders
07 26 00, 03 30 00
Membrane for Use with Separate
Wearing Course.
™ 6HIB:&+)(HiVcYVgYEgVXi^XZ[dg
Installation of Water Vapor Retarders
Used in Contact with Earth or
Granular Fill under Concrete Slabs.
5. Installation
PREPARATION:
™  6 iZhi Veea^XVi^dc h^bjaVi^c\ i]Z
project environment should always
be done prior to final usage of Stego
Mastic.
™ 6aaHjg[VXZhh]djaYWZYgnVcY[gZZ
of loose materials, oils and other
contaminants. The surfaces should
be cleaned in the same fashion as
the test surface in order to ensure
proper results.
™ HidgZVWdkZ)%•;
PENETRATIONS:
For small pipe and rebar penetrations in
Stego Wrap Vapor Barrier cut Stego
Wrap just big enough for the pene-
tration. Liberally apply Stego Mastic
around the penetration to keep the
integrity of the membrane intact. Stego
Mastic can be applied by brush, roller, or
sprayer.
NOTES: 1) For larger penetrations or
wide cut-outs of Stego Wrap, use Stego
Wrap and Stego Tape to repair and seal.
2) Solvent-based products should not be
applied over this product. 3)Clean all
tools with kerosene and/or oil-based
cleaners.
STEGO INDUSTRIES, LLC
Stego® Mastic
04/2013
For additional information, please refer
to Stego's complete installation
instructions.
6. Availability & Cost
Stego Mastic is available nationally via
building supply distributors. For current
cost information, contact your local
Stego distributor or Stego Industries’
sales department.
7. Warranty
Stego Industries, LLC believes to the
best of its knowledge, that specifications
and recommendations herein are
accurate and reliable. However, since
site conditions are not within its control,
Stego Industries does not guarantee
results from the use of the information
provided and disclaims all liability from
any loss or damage. No warranty,
express or implied, is given as to the
merchan-tability, fitness for a particular
purpose, or otherwise with respect to
the products referred to.
8. Maintenance
None required.
9. Technical Services
Technical advice, custom CAD drawings,
and additional information can be
obtained by contacting Stego Industries’
technical assistance department or by
visiting the website.
10. Filing Systems
™HiZ\d>cYjhig^Zh¼lZWh^iZ
™7j^aYh^iZ
TABLE 1: PHYSICAL PROPERTIES OF STEGO MASTIC
Property and Test Stego Mastic
Tensile/Elongation, ASTM D 412 32 psi / 3860%
Resistance to Decay, ASTM E 154 9% perm loss
Accelerated Aging, ASTM G 23 No Effect
Permeance, ASTM E 96 0.17 Perms
Hydrostatic Water Pressure, ASTM D 751 28 psi
Methane Transmission Rate, ASTM D 1434 0
Adhesion to Concrete & Masonry, ASTM C 836 7 lbf./in.
Hardness, ASTM C 836 85
Crack Bridging, ASTM C 836 No Cracking
Low Temp Flexibility, ASTM C 836 No Cracking at -20°C
Resistance to Acids:
Acetic 30%
Sulfuric and Hydrochloric 15%
Temperature Effect:
Stable 248°F
Flexible 13°F
Note: perm unit = grains/(ft2 *hr* in.Hg)
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
1. Product Name
Stego Tape
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: Stego Tape is a low permeance
tape designed for protective sealing,
hanging, seaming, splicing, and
patching applications where a highly
conformable material is required.
It has been engineered to bond
specifically to Stego Wrap, making it
ideal for sealing Stego Wrap seams
and penetrations.
COMPOSITION: Stego Tape is
composed of polyethylene film
and an acrylic, pressure-sensitive
adhesive.
SIZE: Stego Tape is 3.75” wide and
180’ long. Stego Tape ships 12 rolls
in a case.
4. Technical Data
APPLICABLE STANDARDS:
Pressure Sensitive Tape Council
(PSTC)
™PSTC 101 – International Standard
for Peel Adhesion of Pressure
Sensitive Tape
American Society for Testing &
Materials (ASTM)
™ASTM E 1643 - Standard Practice for
Selection, Design, Installation, and
Inspection of Water Vapor Retarders
Used in Contact with Earth or
Granular Fill under Concrete Slabs
5. Installation
SEAMS:
Overlap Stego Wrap six inches and
seal with Stego Tape. Make sure the
area of adhesion is free from dust,
dirt, moisture and frost to allow
maximum adhesion of the pressure
sensitive tape.
Vapor Retarders
07 26 00, 03 30 00
PIPE PENETRATION SEALING
1) Install Stego Wrap around pipe by
slitting/cutting material
2) If void space around pipe is
minimal, seal around base of
pipe with Stego Tape (Stego
Mastic can be used for additional
coverage)
DETAIL PATCH FOR PIPE PENETRATION
SEALING
1) Cut a piece of Stego Wrap that
creates a six inch overlap around
all edges of the void space
2) Cut an “X” in the center of the
detail patch
3) Slide detail patch over pipe,
secure tightly
4) Tape down all sides of detail
patch with Stego Tape
5) Seal around base of pipe with
Stego Tape (Stego Mastic can be
used for additional coverage)
Stego Tape should be installed above
40°F. In temperatures below 40°F,
take extra care to remove moisture
or frost from the area of adhesion.
For additional information, please
refer to Stego's complete installation
instructions.
6. Availability & Cost
Stego Tape is available nationally
via building supply distributors. For
current cost information, contact
your local Stego distributor or Stego
Industries’ sales department.
7. Warranty
Stego Industries, LLC believes
to the best of its knowledge, that
specifications and recommend-
ations herein are accurate and
reliable. However, since site
conditions are not within its control,
Stego Industries does not guarantee
results from the use of the
information provided and disclaims
all liability from any loss or damage.
No warranty, express or implied,
is given as to the merchantability,
fitness for a particular purpose,
or otherwise with respect to the
products referred to.
8. Maintenance
None required.
9. Technical Services
Technical advice, custom CAD
drawings, and additional infor-
mation can be obtained by
contacting Stego Industries’
technical assistance department or
by visiting the website.
10. Filing Systems
™HiZ\d>cYjhig^Zh¼lZWh^iZ
™7j^aYh^iZ
TABLE 1: PHYSICAL PROPERTIES OF STEGO TAPE
PROPERTY RESULTS
Total Thickness 6 mils
Permeance 0.03 perms
Tensile Strength 17 lbs./in. width
Elongation (at break) MD 1060%
Adhesion (20 min dwell ss, PSTC 101) 95-oz./in. width
Ultraviolet Resistance Excellent
STEGO INDUSTRIES, LLC
Stego® Tape
04/2013Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
STEGO CRETE CLAW® TAPE
Stego Crete Claw® Tape provides an innovative and economical way to secure
plastic film to concrete while the concrete is still wet.
Crete Claw is a multi-layered tape/detail strip that will mechanically lock Stego
Wrap Vapor Barrier to concrete. The patent-pending design allows wet concrete to
cast into the textured surface of Crete Claw. Just stick Crete Claw to Stego Wrap
prior to concrete placement, then place the concrete directly over the system.
Stego Crete Claw can be used in place of Stego Tape to seal joints in Stego Wrap
Vapor Barrier providing a dual purpose and helping to offset costs. ANGLED TOP VIEW
The patent-pending design allows wet concrete to cast into the textured surface of Crete Claw
SETTLING SOIL USE CRETE CLAW TOSEAL JOINTS INSTEGO WRAP
VAPOR BARRIERSTEGO CRETE CLAW® TAPE
BELOW SLAB
STEGO INDUSTRIES, LLC | San Clemente, CA | 949-257-4100 | Toll Free 877-464-7834 | Fax [phone] | www.stegoindustries.com
Contact us to learn more about this innovative product.
TABLE 1: CRETE CLAW TAPE TEST RESULTS
PROPERTY TEST RESULTS
Total Thickness 26 mils
Permeance ASTM F 1249 0.03 perms
180° Adhesion Peel Strength ASTM D 903 17.6 lbf/in.
Sheer Adhesion Strength 1 in.2 shear test using an Instron 3345 Machine >49 lbf/in.2*
Roll Sizes 6” x 180’ and 3” x 180’ **
* Specimens failed by stretching vapor barrier to failure before pulling Crete Claw from concrete.
** 3” wide is for perimeter seal application only.
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.04/2013
MOST COMMON APPLICATIONS FOR CRETE CLAW® 6” Wide 3” Wide
ASTM E 1643 - Forming seal to the slab at perimeter
Securing Stego Wrap to bottom of slab for
expansive/settling soils and carton/void
form applications
Perimeter
Seams
99
9
9
Other more expensive products rely
on chemical reaction or geotextile
to bond with concrete making it all
but impossible to properly install the
vapor barrier. Often in pursuit of the
all-in-one product, the performance
characteristics of the vapor barrier
are compromised. Because Crete
Claw Tape is applied as a separate
accessory to the vapor barrier, it
does not interfere with the ability to
detail around penetrations or repair
damaged areas.
Quick and easy
to install
Saves time
and money
Innovative Solution to
help meet ASTM E 1643
VAPOR BARRIER
SEAL ALL SEAMS
IN STEGO WRAP
USING 6” WIDE CRETE CLAW TAPE
STEGO CRETE CLAW® TAPE
INSTALL 6” WIDE CRETE CLAW TAPE ON EDGE
OF STEGO WRAP WHERE STEGO WRAP
MEETS INTERIOR FOOTING
OR GRADE BEAM
INSTALL CRETE CLAW TAPE
ON THE ENTIRE PERIMETER
EDGE OF STEGO WRAP.
TOP-DOWN VIEWS OF A BUILDING FOOTPRINTTOP-DOWN VIEWS OF A BUILDING FOOTPRINT
STEGO CRETE CLAW® TAPE
INSTALLATION INSTRUCTIONS
SEAL ALL PENETRATIONS WITH STEGO TAPE AND/OR STEGO MASTIC.
CRETE CLAW TAPE IS NOT MEANT FOR REPAIRING PENETRATIONS.
STEGO® MASTICSTEGO® TAPE
OR
VAPOR BARRIER
STEGO CRETE CLAW® TAPE
1. Clean surface of Stego Wrap to ensure that it is free of moisture
and debris prior to the installation of 6” wide Crete Claw Tape.
2. Overlap seams a minimum of 6 inches. Seal all seams in Stego
Wrap using Crete Claw Tape.
3. Install 6“ wide Crete Claw Tape on the entire perimeter of the
Stego Wrap Installation. Crete Claw Tape should be completely on
Stego Wrap.
4. Install additional Crete Claw Tape if required. Lab and simulated
field tests have shown that if 6” wide Crete Claw is installed on all
seams and around the perimeter, then it is more than strong enough
to support Stego Wrap. If determined by the architect or engineer,
additional Crete Claw may be specified.
5. Prior to the placement of concrete, ensure that Crete Claw is free
of dirt or debris to ensure maximum bond to the concrete.
These are general instructions. Installation requirements may change
on a project-by-project basis
IMPORTANT - For the application of securing Stego Wrap to the
bottom of the slab, always use 6” wide Crete Claw Tape.
1. Clean surface of Stego Wrap to ensure that it is free of moisture and
debris prior to the installation of Crete Claw Tape.
2. Install 3” or 6” Crete Claw Tape on the entire perimeter of the Stego
Wrap Installation. Crete Claw Tape should be completely on
Stego Wrap.
SEAL ALL SEAMS
IN STEGO WRAP
USING STEGO TAPE
INSTALL CRETE CLAW TAPE ON EDGE OF
STEGO WRAP WHERE STEGO WRAP
MEETS INTERIOR FOOTING
OR GRADE BEAM
INSTALL CRETE CLAW TAPE
ON THE ENTIRE PERIMETER
EDGE OF STEGO WRAP.PERIMETER SEAL TO SLAB
SECURING STEGO WRAP TO THE BOTTOM
OF THE SLAB
CRETE CLAW CAN BE USED TO SEAL SEAM AROUND
DETAIL PATCH FOR ADDED PROTECTION.
.)."'*,")&%%™-,,")+)",-()™lll#hiZ\d^cYjhig^Zh#Xdb
NOTE: Stego Industries, LLC’s (“Stego”) installation instructions are based on ASTM E 1643 - Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor
Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs. These instructions are meant to be used as a guide, and do not take into account specific job site
situations. Consult local building codes and regulations along with the building owner or owner’s representative before proceeding. If you have any questions regarding the above
mentioned installation instructions, Stego products, please call us at 877-464-7834 for technical assistance. While Stego employees and representatives may provide technical
assistance regarding the utility of a specific installation practice or Stego product, they are not authorized to make final design decisions.
TABLE 1: PHYSICAL PROPERTIES OF STEGO CRETE CLAW
PROPERTY RESULTS
Dimensions 6" x 180'
Total Thickness 26 mils
Permeance: ASTM F 1249 0.03 perms
180° Adhesion Peel Strength: ASTM D 903 17.6 lbf/in.
Sheer Adhesion Strength:
1 in2 shear test using an Instron 3345 Machine >49 lbf/in2*
* Specimens failed by stretching vapor barrier to failure before pulling Crete Claw from concrete.
1. Product Name
Stego® Crete Claw® Tape
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: Stego Crete Claw Tape is
a multi-layered tape that is used
to seal Stego Wrap to concrete
while the concrete is still wet.
Crete Claw allows wet concrete to
cast into the textured top surface
to form a mechanical bond/seal.
COMPOSITION: Stego Crete Claw
is composed of polyethylene film,
aperture film, and an acrylic,
pressure sensitive adhesive.
SIZE: Stego Crete Claw is 6” wide by
180’ long. Stego Crete Claw ships 8
rolls in a case.
4. Technical Data
Vapor Retarders
07 26 00
5. Installation
SECURING STEGO WRAP TO SLAB:
Clean the surface of Stego Wrap to
ensure that it is free of moisture,
frost, dirt, and debris prior to the
installation of Stego Crete Claw.
When ready to apply Crete Claw,
peel back the release liner and
apply to Stego Wrap. Stego Crete
Claw should be completely on Stego
Wrap.
Install Crete Claw Tape on all seams
and around the entire perimeter of
the Stego Wrap installation.
To detail, cut Stego Crete Claw with
a box knife or scissors. Crete Claw
should be installed above 40°F for
maximum adhesion. For additional
information, please refer to Stego’s
complete installation instructions.
TIP: Wrap the release liner back
over the entire roll while unrolling
Crete Claw. This technique will
allow the release liner to pull off
easily and keep it out of the way.
STEGO INDUSTRIES, LLC
Stego® Crete Claw® Tape
04/2013Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
6. Availability & Cost
Stego Crete Claw is available
nationally through our network of
building supply distributors. For
current cost information, contact
your local Stego Wrap distributor
or Stego Industries’ Sales
Representative.
7. Warranty
Stego Industries, LLC believes
to the best of its knowledge, that
specifications and recommend-
ations herein are accurate and
reliable. However, since site
conditions are not within its control,
Stego Industries does not guarantee
results from the use of the
information provided and disclaims
all liability from any loss or damage.
No warranty, express or implied,
is given as to the merchantability,
fitness for a particular purpose,
or otherwise with respect to the
products referred to.
8. Maintenance
Store Stego Crete Claw in a dry and
temperate area.
9. Technical Services
Technical advice, custom CAD
drawings, and additional information
can be obtained by contacting Stego
Industries’ technical department or
via our website.
10. Filing Systems
www.stegoindustries.com
Buildsite
1. Product Name
Stego® Crete Claw® (3" Wide)
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: Stego Crete Claw is a multi-
layered tape that is used to seal
Stego Wrap to the perimeter of the
slab while the concrete is placed.
Crete Claw allows wet concrete to
cast into the textured top surface
to form a mechanical bond/seal.
COMPOSITION: Stego Crete Claw
is composed of polyethylene film,
aperture film, and an acrylic,
pressure sensitive adhesive.
SIZE: Stego Crete Claw (3” Wide) is
3” wide and 180’ long. Stego Crete
Claw (3” Wide) ships 16 rolls in a
case.
4. Technical Data
Vapor Retarders
07 26 00
5. Installation
UNDER SLAB: Clean surface of
Stego Wrap to ensure that it is free
of moisture, frost, dirt, and debris
prior to the installation of Stego
Crete Claw. When ready to apply
Crete Claw, peel back the release
liner and apply to Stego Wrap. Stego
Crete Claw should be completely on
Stego Wrap.
To detail, cut Stego Crete Claw with
a box knife or scissors. Crete Claw
should be installed above 40°F for
maximum adhesion. For additional
information please refer to Stego's
complete installation instructions.
TIP: Wrap the release liner back
over the entire roll while unrolling
Crete Claw. This technique will
allow the release liner to pull off
easily and keep it out of the way.
6. Availability & Cost
Stego Crete Claw (3” Wide) is
available nationally through
our network of building supply
distributors. For current cost
information, contact your local Stego
Wrap distributor or Stego Industries’
Sales Representative.
7. Warranty
Stego Industries, LLC believes
to the best of its knowledge, that
specifications and recommend-
ations herein are accurate and
reliable. However, since site
conditions are not within its control,
Stego Industries does not guarantee
results from the use of the
information provided and disclaims
all liability from any loss or damage.
No warranty, express or implied,
is given as to the merchantability,
fitness for a particular purpose,
or otherwise with respect to the
products referred to.
8. Maintenance
Store Stego Crete Claw in a dry and
temperate area.
9. Technical Services
Technical advice, custom CAD
drawings, and additional information
can be obtained by contacting Stego
Industries’ technical department or
via our website.
10. Filing Systems
www.stegoindustries.com
Buildsite
STEGO INDUSTRIES, LLC
Stego® Crete Claw® (3" Wide)
04/2013Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
TABLE 1: PHYSICAL PROPERTIES OF STEGO CRETE CLAW (3" Wide)
PROPERTY RESULTS
Dimensions 3" x 180'
Total Thickness 26 mils
Permeance: ASTM F 1249 0.03 perms
180° Adhesion Peel Strength: ASTM D 903 17.6 lbf/in.
Sheer Adhesion Strength:
1 in2 shear test using an Instron 3345 Machine >49 lbf/in2*
* Specimens failed by stretching vapor barrier to failure before pulling Crete Claw from concrete.
1. Product Name
StegoTack® Tape
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: StegoTack Tape is a double-
sided adhesive strip used to bond
and seal Stego Wrap to concrete,
masonry, wood, metal, and other
surfaces. StegoTack is a flexible
and moldable material to allow
for a variety of applications and
installations.
COMPOSITION: StegoTack Tape
is made from a blend of synthetic
rubber and resins. SIZE: StegoTack
Tape is 2 inches wide and 50 feet
long. StegoTack Tape ships 12 rolls
in a case.
5. Installation
TO WALLS: Make sure the area of
Vapor Retarders
07 26 00, 03 30 00
adhesion is free of dust, dirt, debris,
moisture, and frost to allow maximum
adhesion. Remove release liner on one
side and stick to desired surface. When
ready to apply Stego Wrap, remove the
exposed release liner and press Stego
Wrap firmly against StegoTack Tape to
secure.
TO FOOTINGS: Make sure the area of
adhesion is free of dust, dirt, debris,
moisture, and frost to allow maximum
adhesion. Remove release liner on one
side and stick to desired surface. When
ready to apply Stego Wrap, remove the
exposed release liner and press Stego
Wrap firmly against StegoTack Tape to
secure.
Cut StegoTack Tape using a utility
knife or scissors. Cut StegoTack Tape
before removing the release liner for
easier cutting. Install StegoTack Tape
between 40°F and 110°F. For additional
information please refer to Stego's
complete installation instructions.
6. Availability & Cost
StegoTack Tape is available nationally
through our network of building
supply distributors. For current cost
information, contact your local Stego
STEGO INDUSTRIES, LLC
StegoTack® Tape
04/2013
Wrap distributor or Stego Industries’
Sales Representative.
7. Warranty
Stego Industries, LLC believes to the
best of its knowledge, that specifications
and recommendations herein are
accurate and reliable. However, since
site conditions are not within its control,
Stego Industries does not guarantee
results from the use of the information
provided and disclaims all liability
from any loss or damage. No warranty,
express or implied, is given as to the
merchantability, fitness for a particular
purpose, or otherwise with respect to
the products referred to.
8. Maintenance
For longer adhesive life, store in dry,
temperate area.
9. Technical Services
Technical advice, custom CAD drawings,
and additional information can be
obtained by contacting Stego Industries’
technical assistance department or via
the website. www.stegoindustries.com
10. Filing Systems
www.stegoindustries.com
Buildsite
TABLE 1: PHYSICAL PROPERTIES OF STEGOTACK TAPE
PROPERTY RESULTS
Dimensions 50 feet long,
2 inches wide
Total Thickness 30 Mils
Permeance 0.03 perms (30 mils)
Color Grey
Material Synthetic rubber blend
Adhesion to Steel 10.3 lbs./in. width ASTM C 1000
Installation Temperature 40°F/110°F (4°C/43°C)
In Service Temperature Range -20°F/+140°F (-29°C/60°C)
VOC Content No VOC’s, 100% solids
4. Technical Data
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
1. Product Name
Stego Term Bar
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: Stego Term Bar is a semi-
flexible plastic termination bar used for
mechanically securing Stego Wrap or
other materials to concrete, masonry,
or wood.
COMPOSITION: Stego Term Bar is made
from post-industrial recycled PVC.
5. Installation
UNDER SLAB: Nail through Stego Term
Bar and Stego Wrap to secure material
as needed. If the beveled edge is facing
the wall, a pocket/lip is created for
mastic/sealant to be used if required.
Vapor Retarders
07 26 00, 03 30 00
Pre-drilled nail holes are provided every
6 inches for ease of installation.
To cut Stego Term Bar, score with a
utility knife or wire snips. Stego Term
Bar can be bent back and forth and then
broken at desired locations as well.
Stego Term Bar is flexible enough to
bend around corners and contours in the
wall for easy installation.
For additional information, please
refer to Stego's complete installation
instructions.
6. Availability & Cost
Stego Term Bar is available nationally
through our network of building
supply distributors. For current cost
information, contact your local Stego
Wrap distributor or Stego Industries’
Sales Representative.
7. Warranty
Stego Industries, LLC believes to the
best of its knowledge, that specifications
and recommendations herein are
STEGO INDUSTRIES, LLC
Stego® Term Bar
04/2013
TABLE 1: PHYSICAL PROPERTIES OF STEGO TERM BAR
PROPERTY RESULTS
Dimensions 4 feet long,
1 1/8 inches wide
Color Red
Material Recycled PVC
Weight 4.7 oz. (132 grams)
4. Technical Data
accurate and reliable. However, since
site conditions are not within its control,
Stego Industries does not guarantee
results from the use of the information
provided and disclaims all liability
from any loss or damage. No warranty,
express or implied, is given as to the
merchantability, fitness for a particular
purpose, or otherwise with respect to
the products referred to.
8. Maintenance
Store above 60°F. Term Bar will become
less flexible at lower temperatures.
9. Technical Services
Technical advice, custom CAD drawings,
and additional information can be
obtained by contacting Stego Industries’
technical assistance department or via
the website. www.stegoindustries.com
10. Filing Systems
www.stegoindustries.com
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
1. Product Name
Stego Pre-Cut Pipe Boots
2. Manufacturer
Stego Industries, LLC
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. Product Description
USES: Stego Pre-Cut Pipe Boots are used
to seal around permanent penetrations
in Stego Wrap.
COMPOSITION: Stego Pre-Cut Pipe
Boots are made from Stego Wrap
Vapor Barrier (15-mil), and therefore
are manufactured from only high grade
prime, virgin, polyolefin resins.
SIZE: Stego Pre-Cut Pipe Boots are 18”
by 18” and 15 mils thick. Stego Pre-Cut
Pipe Boots ship 10 packs of 25 in a case
(250 boots per case).
Vapor Retarders
07 26 00, 03 30 00
5. Installation
UNDER SLAB: Cut an “X” the size of the
pipe diameter in the center of the Pre-
Cut Pipe Boot and slide tightly over pipe.
Tape all sides of the pipe boot with Stego
Tape. Seal around the base of the pipe
using Stego tape and/or Stego Mastic.
For additional information, please
refer to Stego's complete installation
instructions.
6. Availability & Cost
Stego Pre-Cut Pipe Boots are available
nationally through our network of
building supply distributors. For
current cost information, contact your
local Stego Wrap distributor or Stego
Industries’ Sales Representative.
7. Warranty
Stego Industries, LLC believes to the
best of its knowledge, that specifica-
tions and recommendations herein are
accurate and reliable. However, since
site conditions are not within its control,
Stego Industries does not guarantee
results from the use of the information
provided and disclaims all liability
from any loss or damage. No warranty,
express or implied, is given as to the
merchantability, fitness for a particular
purpose, or otherwise with respect to
the products referred to.
8. Maintenance
None required.
9. Technical Services
Technical advice, custom CAD drawings,
and additional information can be
obtained by contacting Stego Industries’
technical assistance department or via
the website. www.stegoindustries.com
STEGO INDUSTRIES, LLC
Stego® Pre-Cut Pipe Boots
04/2013
TABLE 1: PHYSICAL PROPERTIES OF STEGO PRE-CUT PIPE BOOTS
PROPERTY TEST RESULTS
Under Slab Vapor Retarders ASTM E 1745 Class A, B & C – Standard Specification for Water Vapor Retarders Used
in Contact with Soil or Granular Fill under Concrete Slabs Exceeds Class A, B & C
Water Vapor Permeance ASTM F 1249 – Test Method for Water Vapor Transmission Rate Through Plastic Film and 0.0086 perms
Sheeting Using a Modulated Infrared Sensor *0.0036 WVTR
Puncture Resistance ASTM D 1709 – Test Methods for Impact Resistance of Plastic Film by Free-Falling
Dart Method 2266 grams
Tensile Strength ASTM D 882 – Test Method for Tensile Properties of Thin Plastic Sheeting 70.60 lbf/in.
Permeance After Conditioning ASTM E 154 Section 8, F 1249 – Permeance after wetting, drying, and soaking 0.0098 perms
(ASTM E 1745 ASTM E 154 Section 11, F 1249 – Permeance after heat conditioning 0.0091 perms
Sections 7.1.2 - 7.1.5) ASTM E 154 Section 12, F 1249 – Permeance after low temperature conditioning 0.0097 perms
ASTM E 154 Section 13, F 1249 – Permeance after soil organism exposure 0.0095 perms
Thickness ACI 302.1R-04 – Minimum Thickness (10 mils) 15 mils
Pipe Boot Dimensions 18" x 18"
Note: perm unit = grains/(ft2 *hr* in.Hg) * WVTR = Water Vapor Transmission Rate
4. Technical Data
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC.
UNDER-SLAB INSTRUCTIONS:
1. Stego Wrap can be installed over an aggregate, sand, or tamped earth
base. It is not necessary to have a cushion layer or sand base, as Stego
Wrap is tough enough to withstand rugged construction environments.
2. Unroll Stego Wrap over the area where the slab is to be placed. Stego
Wrap should completely cover the concrete placement area. All joints/
seams both lateral and butt should be overlapped a minimum of
six inches and taped using Stego Tape.
NOTE: The area of adhesion should be free from dust, dirt, moisture, and
frost to allow maximum adhesion of the pressure-sensitive tape.
3. ASTM E 1643 requires sealing the perimeter of the slab. Extend vapor
retarder over footings and seal to foundation wall, grade beam, or
slab at an elevation consistent with the top of the slab or terminate
at impediments such as waterstops or dowels. Consult the structural
engineer of record before proceeding.
SEAL TO SLAB AT PERIMETER:*
NOTE: Clean the surface of Stego Wrap to ensure that the area of adhesion is
free from dust, dirt, moisture, and frost to allow maximum adhesion of the
pressure-sensitive adhesive.
a. Install Crete Claw® on the entire perimeter edge of Stego Wrap.
b. Prior to the placement of concrete, ensure that the top of Crete Claw
is free of dirt, debris, or mud to maximize the bond to the concrete.
STEGO WRAP VAPOR BARRIER/RETARDERINSTALLATION INSTRUCTIONS
IMPORTANT: Please read these installation instructions completely, prior to beginning any Stego Wrap installation. The following
installation instructions are based on ASTM E 1643 - Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor
Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs. If project specifications call for compliance with ASTM E 1643,
then be sure to review the specific installation sections outlined in the standard along with the techniques referenced in these instructions.
VAPOR BARRIER
STEGO® TAPE
Minimum 6” overlap
FIGURE 1: UNDER-SLAB INSTALLATION
PART 1
.)."'*,")&%%™-,,")+)",-()™lll#hiZ\d^cYjhig^Zh#Xdb
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC. 04/2013
NOTE: Stego Industries, LLC’s (“Stego”) installation instructions are based on ASTM E 1643 - Standard Practice for Selection, Design, Installation, and
Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs. These instructions are meant to be used as a
guide, and do not take into account specific job site situations. Consult local building codes and regulations along with the building owner or owner’s
representative before proceeding. If you have any questions regarding the above mentioned installation instructions or Stego products, please call us at
877-464-7834 for technical assistance. While Stego employees and representatives may provide technical assistance regarding the utility of a specific
installation practice or Stego product, they are not authorized to make final design decisions.
VAPOR BARRIER
CRETE CLAW®
SLAB PERIMETER
VAPOR BARRIER
FOOTING
STEGOTACK® TAPE
FIGURE 2a: SEAL TO SLAB AT PERIMETER
FIGURE 2b: SEAL TO PERIMETER WALL
STEGO LABOR SAVER!
This method not only complies with ASTM E 1643, but it also:
‹YLK\JLZSHIVYJVTWHYLK[VV[OLYWLYPTL[LYZLHSPUN[LJOUPX\LZ
‹JHUIL\ZLKL]LU^P[OV\[HUL_PZ[PUN^HSSVYMVV[PUN\USPRLHS[LYUH[P]LZ
OR SEAL TO PERIMETER WALL OR FOOTING WITH
STEGOTACK® TAPE:*
a. Make sure area of adhesion is free of dust, dirt, debris,
moisture, and frost to allow maximum adhesion.
b. Remove release liner on one side and stick to desired
surface.
c. When ready to apply Stego Wrap, remove the exposed
release liner and press Stego Wrap firmly against
StegoTack Tape to secure.
* If ASTM E 1643 is specified, consult with project architect
and structural engineer to determine which perimeter seal
technique should be employed for the project.
FIGURE 2c: SEAL TO FOOTING
VAPOR BARRIER
FOOTING
STEGOTACK® TAPE
OR
.)."'*,")&%%™-,,")+)",-()™lll#hiZ\d^cYjhig^Zh#Xdb
NOTE: Stego Industries, LLC’s (“Stego”) installation instructions are based on ASTM E 1643 - Standard Practice for Selection, Design, Installation, and
Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs. These instructions are meant to be used as a
guide, and do not take into account specific job site situations. Consult local building codes and regulations along with the building owner or owner’s
representative before proceeding. If you have any questions regarding the above mentioned installation instructions or Stego products, please call us at
877-464-7834 for technical assistance. While Stego employees and representatives may provide technical assistance regarding the utility of a specific
installation practice or Stego product, they are not authorized to make final design decisions.
MULTIPLE PIPE PENETRATION SEALING:
Multiple pipe penetrations in close proximity and very
small pipes may be sealed using Stego Wrap and Stego
Mastic for ease of installation (see figure 5, Multiple
Pipe Penetration Sealing).

STEGO® TAPE
STEGO® MASTICCOMPLETELY FILL ALL VOIDS
FIGURE 5: MULTIPLE PIPE PENETRATION SEALING
STEGO WRAP PIPE PENETRATION REPAIR DETAIL:
1: Install Stego Wrap around pipe penetrations by slitting/cutting material as needed. Try to minimize the void space created.
2: If Stego Wrap is close to pipe and void space is minimized then seal around pipe penetration with Stego Tape and/or Stego Mastic.
(See Figure 4a)
3: If detail patch is needed to minimize void space around penetration, then cut a detail patch to a size and shape that creates a six inch
overlap on all edges around the void space at the base of the pipe. Stego Pre-Cut Pipe Boots are also available to speed up the installation.
4: Cut an “X” the size of the pipe diameter in the center of the pipe boot and slide tightly over pipe.
5: Tape down all sides of the pipe boot with Stego Tape.
6: Seal around the base of the pipe using Stego Tape and/or Stego Mastic.
(See Figure 4b)
STEGO® TAPE
LARGE VOID SPACE CREATED
STEGO® MASTICSTEGO® TAPE
CUT AN “X” THE SIZE OFPIPE DIAMETER OR
STEGO®PRE-CUTPIPE BOOT
STEGO®PRE-CUTPIPE BOOT
STEGO®PRE-CUTPIPE BOOT
STEGO®PRE-CUTPIPE BOOT
FIGURE 4b: DETAIL PATCH FOR PIPE PENETRATION SEALING
MINIMAL VOID SPACE CREATED
STEGO® MASTICSTEGO® TAPE
OR
FIGURE 4a: PIPE PENETRATION SEALING
5. IMPORTANT: ALL PENETRATIONS MUST BE SEALED. All pipe, ducting, rebar, wire penetrations and block outs should
be sealed using Stego Wrap, Stego Tape and/or Stego Mastic (see figure 4a, Pipe Penetration Sealing).
STEGO® TAPE
DAMAGED AREA
STEGO® TAPE STEGO® TAPE
SMALL HOLEOR
FIGURE 3: SEALING DAMAGED AREAS
4. In the event that Stego Wrap is damaged during or after installation, repairs must be made. Stego Tape can be used
to repair small holes in the material. For larger holes, cut a piece of Stego Wrap to a size and shape that covers any
damage by a minimum overlap of six inches in all directions. Clean all adhesion areas of dust, dirt, moisture, and frost.
Tape down all edges using Stego Tape (see figure 3, Sealing Damaged Areas).
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC. 04/2013
CRAWL SPACE INSTALLATION INSTRUCTIONS:
1. Turn Stego Wrap up the foundation wall to a minimum height of six inches above the outside/exterior grade or in
compliance with local building codes and terminate with Stego Term Bar. To form a complete seal, apply StegoTack
Tape or a layer of Stego Mastic to the foundation wall prior to installing Stego Term Bar. Allow one hour for Stego
Mastic to cure prior to installing Stego Term Bar.
2. Seal Stego Wrap around all penetrations and columns using Stego Tape, StegoTack Tape, and/or Stego Mastic.
3. Place Stego Wrap directly over the crawl space floor. If rigid insulation is to be used, install Stego Wrap prior to
insulation (under insulation and between the foundation wall and insulation).
4. Overlap seams a minimum of six inches and seal with Stego Tape. Some codes require a minimum of a twelve inch
overlap. Check appropriate codes prior to installation.
4.
VAPOR BARRIER
STEGO® TAPE
SUBGRADE
STEGOTACK® TAPE
STEGO® TERM BAR
STEGO® TAPE
STEGOTACK® TAPE
FIGURE 6: CRAWL SPACE INSTALLATION
NOTE: Stego Wrap Vapor Barrier and Stego Tape are both available in white (as shown in illustration above).
INSTALLATION TIP:
1. For a cleaner look and to prevent against tenting of Stego Wrap at the foundation wall/foundation floor intersection,
consider mechanically fastening Stego Wrap to base of foundation wall in addition to the above mentioned wall
termination.
STEGO WRAP VAPOR BARRIER/RETARDERINSTALLATION INSTRUCTIONS
PART 2
.)."'*,")&%%™-,,")+)",-()™lll#hiZ\d^cYjhig^Zh#Xdb
NOTE: Stego Industries, LLC’s (“Stego”) installation instructions are based on ASTM E 1643 - Standard Practice for Selection, Design, Installation, and
Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs. These instructions are meant to be used as a
guide, and do not take into account specific job site situations. Consult local building codes and regulations along with the building owner or owner’s
representative before proceeding. If you have any questions regarding the above mentioned installation instructions or Stego products, please call us at
877-464-7834 for technical assistance. While Stego employees and representatives may provide technical assistance regarding the utility of a specific
installation practice or Stego product, they are not authorized to make final design decisions.
Stego, the stegosaurus logo, Crete Claw, and StegoTack are all deemed to be registered and protectable trademarks of Stego Industries, LLC. 04/2013
TURBINE VENTILATORS
CONSTRUCTION SPECIFICATIONS
“A”
THROAT SIZE
GUAGE NO. OF
BRACES
BRACE
MATERIALCROWN GALV.BLADE GALV.THROAT GALV.
4 24 28 26 3 ALUMINUM
6 24 28 26 3 ALUMINUM
8 24 28 26 3 ALUMINUM
10 24 28 26 3 ALUMINUM
12 24 28 24 3 ALUMINUM
14 22 26 24 3 ALUMINUM
16 22 26 24 3 STEEL
18 22 26 24 4 STEEL
20 20 26 24 4 STEEL
24 20 26 22 4 STEEL
DIMENSIONAL AND PERFORMACE DATA
“A”
THROAT SIZE
“B”
HEIGHT
“C”
OVERALL WIDTH
EXHAUSTED
CAPACITY*
APPROX.
SHIPPING WEIGHT
4 12 10 1/4 125 5
6 14 1/2 12 3/4 147 7
8 15 14 1/4 255 8
10 16 1/4 16 1/4 425 11
12 17 19 631 13
14 19 3/4 22 3/4 700 21
16 21 3/4 25 1/2 950 31
18 24 29 1200 38
20 25 1/4 31 5/8 1700 46
24 28 1/4 35 3/4 2350 58
*4 MPHWIND CFM

Appendix C
VMS Installation Photographs
Photograph 2: Vapor barrier liner (typ)
TREMONT REDEVELOPMENT
337 W. TREMONT AVENUE
CHARLOTTE, NORTH CAROLINA
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
Photograph 1: Horizontal pipe set in base coarse stone (typ)
Photograph 3: Vertical mitigation duct pipe (typ)
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
TREMONT REDEVELOPMENT
337 W. TREMONT AVENUE
CHARLOTTE, NORTH CAROLINA
Photographs 5: Wind-driven turbine fans installed on vertical mitigation pipes (typ)
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
TREMONT REDEVELOPMENT
337 W. TREMONT AVENUE
CHARLOTTE, NORTH CAROLINA
Photographs 4: Vertical mitigation pipe roof penetration (typ)
Photographs 9 & 10: Residential unit at the time of post-construction indoor air assessment activities (typ).
TREMONT REDEVELOPMENT
337 W. TREMONT AVENUE
CHARLOTTE, NORTH CAROLINA
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
Photographs 7 & 8: VMS vacuum monitoring point within the Tremont Apartments complex (typ)

Appendix D
Completed DEQ DWM Indoor Air Building Survey and Sampling Forms

Appendix E
Laboratory Analytical Reports and Chain of Custody Records
Page 1 of 13
Page 2 of 13
Page 3 of 13
Page 4 of 13
Page 5 of 13
Page 6 of 13
Page 7 of 13
Page 8 of 13
Page 9 of 13
Page 10 of 13
Page 11 of 13
Page 12 of 13
Page 13 of 13
Page 1 of 15
Page 2 of 15
Page 3 of 15
Page 4 of 15
Page 5 of 15
Page 6 of 15
Page 7 of 15
Page 8 of 15
Page 9 of 15
Page 10 of 15
Page 11 of 15
Page 12 of 15
Page 13 of 15
Page 14 of 15
Page 15 of 15

Appendix F
DEQ Risk Calculators (February 2018)
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Prepared By:Hart & Hickman, PC
Building 4 - Hypothetical Worst Case
North Carolina Department of Environmental Quality
Risk Calculator
Tremont Redevelopment
327 W. Tremont Avenue, Charlotte, NC
Brownfields Program
18004-14-060
February 2018
November 2017 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: February 2018
Basis: November 2017 EPA RSL Table
Site ID: 18004-14-060
Exposure Unit ID: Building 4 - Hypothetical Worst Case
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Surface Soil Exposure Point Concentration Table
Input Form 2B Subsurface Soil Exposure Point Concentration Table
Input Form 2C Groundwater Exposure Point Concentration Table
Input Form 2D Surface Water Exposure Point Concentration Table
Input Form 2E Soil Gas Exposure Point Concentration Table
Input Form 2F Indoor Air Exposure Point Concentration Table
Output Form 1A Summary of Risk Assessment Output
Output Form 2A Resident Soil Combined Pathways
Output Form 2B Resident Groundwater Combined Pathways
Output Form 2C Non-Residential Worker Soil Combined Pathways
Output Form 2D Non-Residential Worker Groundwater Combined Pathways
Output Form 2E Construction Worker Soil Combined Pathways
Output Form 2F User Defined Soil Combined Pathways
Output Form 2G User Defined Surface Water Combined Pathways
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil Source to Groundwater POE - Forward Mode
Output Form 4B Groundwater Source to Groundwater POE - Forward Mode
Output Form 4C Soil Source to Surface Water POE - Forward Mode
Output Form 4D Groundwater Source to Surface Water POE - Forward Mode
Output Form 4E Soil Source to Groundwater POE - Backward Mode
Output Form 4F Groundwater Source to Groundwater POE - Backward Mode
Output Form 4G Soil Source to Surface Water POE - Backward Mode
Output Form 4H Groundwater Source to Surface Water POE - Backward Mode
Output Section 4 - Contaminant Migration to Point of Exposure (POE) Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Primary Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: February 2018
Basis: November 2017 EPA RSL Table
Site ID: 18004-14-060
Exposure Unit ID: Building 4 - Hypothetical Worst Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil Combined Pathways
Groundwater Combined Pathways
Soil Combined Pathways
Groundwater Combined Pathways
Construction Worker Soil Combined Pathways
Soil Combined Pathways
Surface Water Combined Pathways
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
PRIMARY PATHWAYS
Resident
Non-Residential Worker
User Defined
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Protection of Groundwater Use
Protection of Surface Water
North Carolina DEQ Risk Calculator
Exposure Point ConcentrationsVersion Date: February 2018Basis: November 2017 EPA RSL TableSite ID: 18004-14-060Exposure Unit ID: Building 4 - Hypothetical Worst CaseExposure Point Concentration (ug/m3)Justification for Exposure Point ConcentrationCAS Number ChemicalMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion1.2 71-43-2 Benzeneug/m30.19 98-82-8 Cumeneug/m30.31 91-20-3 ~Naphthaleneug/m30.42 127-18-4 Tetrachloroethyleneug/m30.63 79-01-6 Trichloroethyleneug/m3Input Form 2FIndoor Air Exposure Point Concentration TableNote: Chemicals highlighted in orange are non-volatile chemicals. Risks are calculated for these chemicals if indoor air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals are likely not associated with vapor intrusion.North Carolina DEQ Risk Calculator
Summary of Risk Assessment Output Output Form 1A
Version Date: February 2018
Basis: November 2017 EPA RSL Table
Site ID: 18004-14-060
Exposure Unit ID: Building 4 - Hypothetical Worst Case
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Soil Combined Pathways NC NC NC
Groundwater Combined Pathways* NC NC NC
Soil Combined Pathways NC NC NC
Groundwater Combined Pathways* NC NC NC
Construction Worker Soil Combined Pathways NC NC NC
Soil Combined Pathways NC NC NC
Surface Water Combined Pathways* NC NC NC
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air 8.4E-06 4.5E-01 NO
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
PRIMARY CALCULATORS
Resident
Non-Residential Worker
User Defined
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed
the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a
risk-based closure.
Protection of Surface Water Exceedence of 2B at POE?
Exceedence of 2B at POE?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target POE Concentrations Exceeded?
Protection of Groundwater Use Exceedence of 2L at POE?
Exceedence of 2L at POE?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for
lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Indoor Air
Version Date: February 2018
Basis: November 2017 EPA RSL Table
Site ID: 18004-14-060
Exposure Unit ID: Building 4 - Hypothetical Worst Case
CAS # Chemical Name:
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
71-43-2 Benzene 1.2 3.6E-01 6.3E+00 3.3E-06 3.8E-02
98-82-8 Cumene 0.19 - 8.3E+01 4.6E-04
91-20-3 ~Naphthalene 0.31 8.3E-02 6.3E-01 3.8E-06 9.9E-02
127-18-4 Tetrachloroethylene 0.42 1.1E+01 8.3E+00 3.9E-08 1.0E-02
79-01-6 Trichloroethylene 0.63 4.8E-01 4.2E-01 1.3E-06 3.0E-01
Cumulative: 8.4E-06 4.5E-01
All concentrations are in ug/m3
Output Form 3C
** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate
carcinogenic risk or hazard quotient. Lead concentrations are compared to the National Ambient Air Quality Standard of 0.15 μg/m3.
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Risks are calculated for these values if
indoor air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals
are likely not associated with vapor intrusion.
North Carolina DEQ Risk Calculator