24035-20-060_Former TA Sherrill Vapor Mitigation Plan_20210413 (rev 1)

Vapor Intrusion Mitigation System Design
Submittal
Former TA Sherrill Construction Co
Brownfields Project ID: 24035-20-060
2000-2028 North Brevard Street and 504 East 23rd Street
Charlotte, Mecklenburg County, North Carolina
Terracon Project No. 71197854
January 18, 2021
Revised: April 13, 2021

Prepared for:
North Carolina Department of Environmental Quality
Division of Waste Management
Raleigh, North Carolina

Prepared by:
Terracon Consultants, Inc.
Charlotte, North Carolina

Terracon Consultants Inc. 2701 Westport Road Charlotte, NC 28208
P 704-509-1777 F 704-509-1888 terracon.com

January 18, 2021
Revised: April 13, 2021

Attn: Mr. Bill Schmithorst
NCDEQ – Division of Waste Management
Brownfields Program
1646 Mail Service Center
Raleigh, NC 27699-1646

Re: Vapor Intrusion Mitigation System Design Submittal
Former TA Sherrill Construction Co
Brownfields Project ID: 24035-20-060
2000-2028 North Brevard Street and 504 East 23rd Street
Charlotte, Mecklenburg County, North Carolina
Terracon Project No. 71197854

Mr. Schmithorst:

On behalf of Alliance Realty Partners, LLC (i.e., the Proposed Developer), Terracon Consultants,
Inc. is pleased to submit this revised Vapor Intrusion Mitigation System (VIMS) Design Submittal
for the above referenced site. Terracon Consultants, Inc. is licensed to practice
geology/engineering in North Carolina. The certification number of the corporation is F-0869.

If you have any questions concerning this report or need additional information, please contact
us at 919-873-2211.

Sincerely,
Terracon Consultants, Inc.

William O. Frazier, PG S. Alex Chinery, PE
Project Geologist Project Engineer

Matthew B. Hall, PE
Senior Engineer

Attachments

TABLE OF CONTENTS
Page No.
1.0 Introduction .................................................................................................................................... 1
2.0 Design Basis ................................................................................................................................... 2
3.0 Quality Assurance / Quality Control ............................................................................................ 3
4.0 Post-Construction / Pre-Occupancy System Effectiveness Testing ........................................ 4
5.0 Post-Occupancy Testing ............................................................................................................... 6
6.0 Future Tenants & Building Uses .................................................................................................. 7
7.0 Reporting ........................................................................................................................................ 7
8.0 Design Submittal Exhibits ............................................................................................................. 7

APPENDICES

FIGURE 1 Topographic Map
FIGURE 2 Sample Location Map
TABLE 1 Summary of Historical Groundwater Analytical Results – February 2020
TABLE 2 Summary of Groundwater Analytical Data – March 2020
TABLE 3 Soil Vapor Analytical Data

APPENDIX A VIMS Design

APPENDIX B Nitra-Seal Specifications

APPENDIX C Soil Vapor Sampling Set-Up

VIMS Design Submittal
Former TA Sherrill Construction Co ■ Charlotte, North Carolina
January 18, 2021; Revised: April 13, 2021 ■ Terracon Project No. 71197854

1

1.0 INTRODUCTION
Terracon Consultants Inc. (Terracon) prepared this Vapor Intrusion Mitigation System (VIMS)
design for installation at the Former TA Sherrill Construction Co site located at 2000-2028 North
Brevard Street and 504 East 23rd Street in Charlotte, North Carolina (Figure 1). The site will be
redeveloped with a multi-family apartment complex. The multi-family structures will consist of
approximately 50,000 square feet of livable space, including approximately 325 residential units
plus amenity spaces. An approximate 21,000 square-foot above-grade parking structure will
adjoin the multi-family structures.

Volatile organic compounds (VOCs) were not detected above Residential Vapor Intrusion
Screening Levels (VISLs) in four soil vapor samples obtained at the site in February 2020.
However, Terracon understands the North Carolina Brownfields Program (NCBP) determined that
the elevated petroleum and tetrachloroethylene (PCE) constituent concentrations detected in the
groundwater at the site constitute a potential vapor intrusion risk to future site occupants. The
historical groundwater and soil vapor sample locations are shown on Figure 2. A summary of the
groundwater and soil vapor analytical results are provided in Tables 1 through 3.

To decrease the risk of potential vapor intrusion and protect future occupants from potential vapor
intrusion impacts, Terracon designed the VIMS to be installed beneath the proposed building. The
VIMS was designed by a Professional Engineer licensed to practice in North Carolina. The VIMS
as installed will be protective of public health from potential vapor intrusion impacts. The proposed
design is included in Appendix A.

The draft Notice of Brownfields Property (NBP) is currently under review by DEQ. It is
anticipated the NBP will include the following land use restriction related to vapor intrusion:

No enclosed building may be constructed on the Brownfields Property and no existing building,
defined as those depicted on the plat component of the Notice of Brownfields Property referenced
in the Brownfields Agreement, may be occupied until DEQ determines in writing that:

i. the building is or would be protective of the building’s users and public health from the risk
of vapor intrusion based on site assessment data or a site-specific risk assessment approved
in writing by DEQ; or

ii. a VIMS has been designed to mitigate vapors for subgrade building features in accordance
with the most recent and applicable DWM Vapor Intrusion Guidance, Interstate Technology
Regulatory Council (ITRC) guidance, and American National Standards Institute
(ANSI)/American Association of Radon Scientists and Technologists (AARST) standards,
and that said design shall fully protect public health to the satisfaction of a professional
engineer licensed in North Carolina, as evidenced by said engineer’s professional seal, and
VIMS Design Submittal
Former TA Sherrill Construction Co ■ Charlotte, North Carolina
January 18, 2021; Revised: April 13, 2021 ■ Terracon Project No. 71197854

2

shall include a performance monitoring plan detailing methodologies and schedule, both of
which are subject to prior written DEQ approval; and

iii. Said VIMS outlined in in the above subparagraph has been installed and an installation
report is submitted for written DEQ approval that includes details on any deviations from the
system design, as-built diagrams, photographs, and a description of the installation with said
engineer’s professional seal confirming that the system was installed per the DEQ-approved
design and will be protective of public health.
2.0 DESIGN BASIS
The VIMS design will be used to guide construction of the mitigation system. The VIMS includes
the installation of an NCDEQ-approved, spray-applied membrane beneath ground level portions
of the proposed building. The membrane will be a chemical barrier against the potential for vapor
from contaminants of concern (COCs) identified at the site (i.e., benzene; ethylbenzene;
isopropylbenzene; naphthalene; 1,2,4-trimethylbenzene; 1,3,5-trimethylbenzene; xylenes; and
PCE). The VIMS will be a Nitra-Seal™ barrier system comprised of 23-mil Nitra-Base geotextile
base layer, 40-mil spray-applied Nitra-Core asphaltic latex layer, and 18-mil Land Science Bond
protective HDPE geotextile layer. The membrane shall be installed by a manufacturer certified
installation contractor. Sub-slab venting construction materials and membrane construction
materials are included with installation specifications on the VIMS design in Appendix A and
Appendix B.

To the extent practicable, COCs will not be present in the building materials. Safety data sheets
(SDS) will be requested by the general contractor from the project contractors to document
materials used in construction as well as items associated with the VIMS once they are selected.
SDSs will be included as an appendix to a sampling workplan, which will be submitted to the
NCDEQ prior to installation of the system.

The VIMS includes a passive mitigation system beneath the ground level occupied spaces to
reduce the potential for vapor intrusion into the building space. The system includes multiple
horizontal vent pipes constructed with low-profile vent pipes to collect vapor from the sub-slab
space beneath the building. A minimum of 4-inch thick aggregate base layer below the sub-slab
will increase the effectiveness of the sub-slab vapor transmission. PVC riser pipes will transmit
the vapors to the roof of the building using pipe chases within interior walls. The riser pipe will be
labeled at regular intervals, pass through the building roof, and discharge through roof-mounted
exhaust stacks. Turbine ventilator fans (Aura AV-3 Vent or equivalent) will be installed on the
discharge end of the exhaust stacks. The fans are wind driven and have a rated exhaust capacity
of 26 cubic feet per minute in a 4-mph wind.

The VIMS includes sub-slab monitoring points with specifications and locations included on the
VIMS design in Appendix A. The points will be constructed within a 1-1/4-inch diameter High-
VIMS Design Submittal
Former TA Sherrill Construction Co ■ Charlotte, North Carolina
January 18, 2021; Revised: April 13, 2021 ■ Terracon Project No. 71197854

3

Density Polyethylene (HDPE) sleeve extending from the aggregate layer to the top of the slab
surface. The points will be constructed with 5/8-inch threaded rod approximately 12-1/3 inch in
length that will extend approximately 2-inches into the subgrade, through an approximate 4-inch
aggregate layer, 30-millimeter thick membrane, and 4-inch thick slab. A 2-inch long, 1/2-inch
diameter Vapor Pin® barb with a 5/8-inch neoprene seal will be inserted into the 1-1/4-inch
diameter sleeve after removal of the threaded rod. During installation of the aggregate layer, a
5/8-inch threaded rod will be installed extending from the native soil through the aggregate base
and VIMS membrane to above the proposed slab surface. The threaded rod will be removed
after completion of the VIMS membrane, associated smoke testing, and slab installation. A 1/2-
inch diameter stainless steel Vapor Pin® will be installed in the HDPE sleeve with a neoprene
seal. The sampling point will be covered with an air-tight plastic cap.
3.0 QUALITY ASSURANCE / QUALITY CONTROL
For quality assurance and quality control (QA/QC) purposes, Terracon will observe the VIMS
installation activities at various stages of construction. The inspections will be performed on the
aggregate base, sub-membrane sampling points, passive vent piping installation, VIMS
membrane installation, vertical riser piping, and fan installations. The inspections will be
performed under the supervision of the design professional engineer (PE). The inspections will
include field logs and photographs. The NCDEQ Brownfields Program will be given a 48-hour
notice prior to conducting the inspections on the site.

Smoke testing and thickness coupon measurements will be conducted following the VIMS
installation and documented with field logs and photographs. Coupon samples will be collected
by cutting an approximate 2-inch by 2-inch hole in the spray-applied membrane prior to installation
of the Land Science Bond top layer to confirm the membrane has been installed to the proper
thickness. Coupon samples will be collected at a frequency of approximately one per 500 to 1,000
square feet of membrane and measured using a digital caliper. Where spray-applied membrane
is applied to vertical surfaces without installation of the Nitra-Base geotextile layer, blunt nose
measurements using a digital caliper will be made in lieu of coupon sampling.

Smoke testing will be conducted by injecting smoke via shop vac, leaf blower, or similar device
through the coupon holes prior to their repair. Adjustment to the flow rate of the injection device
will be made during the testing to obtain full distribution of smoke beneath the membrane without
generating enough pressure to damage the membrane seals at seams and terminations. Leaks
observed in the membrane will be repaired and additional smoke tests will be conducted. Smoke
testing will continue until no observable leaks remain within the area of influence. Terracon will
submit the inspection documentation, smoke testing documentation, and coupon testing
documentation to NCDEQ.

VIMS Design Submittal
Former TA Sherrill Construction Co ■ Charlotte, North Carolina
January 18, 2021; Revised: April 13, 2021 ■ Terracon Project No. 71197854

4

4.0 POST-CONSTRUCTION / PRE-OCCUPANCY SYSTEM
EFFECTIVENESS TESTING
Pilot Testing
Following installation of the VIMS piping, vapor membrane, and concrete slab, but prior to building
occupancy, Terracon will conduct influence testing on the piping network. Pressure testing will
offer evidence that the piping network is providing sufficient vacuum influence below the slab. For
the pilot influence test, a vapor extraction fan will be attached to a vertical riser pipe and the other
riser pipes will be capped. Fans will be added to one riser pipe at a time. The vapor sampling
points will be utilized as vacuum monitoring points. Each vacuum monitoring point will be capped
when not being used for measurements. Prior to beginning the test, vacuum measurements will
be collected at each sampling point. After recording the baseline condition, the fan will be turned
on and an anemometer will be used periodically to measure the velocity of the air exiting the
blower exhaust. A manometer with units of pascals will be utilized to periodically record differential
pressures at the sample ports. The air flow measurements at each fan location, and the vacuum
measurements from each sample port will be recorded and reported to DEQ. If the pressure
differential readings indicate depressurization below the slab of 4 pascals or greater within the
monitoring points, the sub-slab will be considered capable of sufficient depressurization.

Sub-Membrane Soil Gas Testing
Sub-membrane soil gas testing will be conducted following the installation of the VIMS, concrete
slab pour, and building enclosure but prior to building interior construction completion. One
sample each will be collected from VP-1 through VP-11 (plus one blind duplicate sample) using
an in-line purge/sampling train consisting of a batch-certified 1-liter Summa canister connected to
a critical orifice flow restrictor (flow controller), Teflon-line (or equivalent) tubing, a syringe (purge
device), and tedlar bag. Swagelock compression fittings will be used to connect the tubing and
purge device to the remainder of the sample train.

Prior to connection of the sampling train to the sample point, a shut-in (dead-head) test will be
conducted to check for leaks in the above-ground purge/sampling manifold. The sampling train
influent will be sealed, the sampling canister will remain closed, and a syringe will be used to
generate a negative pressure reading of at least 10 inches of mercury on the sampling train
pressure gauge. The sample train will be allowed to sit for approximately 5 minutes, and if there
is an observable loss of vacuum, the fittings will be adjusted until the vacuum in the sample train
does not noticeably dissipate.

Following the shut-in test, the purge/sampling manifold will be connected to the sub-membrane
soil vapor sampling point and a helium tracer gas leak test will be conducted. The tracer gas
serves as a quality assurance/quality control method to verify the integrity of the seal of sampling
train to the sample point. An MGD-2002 helium detector (or equivalent) will be used to verify the
presence and concentration of tracer gas. The protocol for using a tracer gas is to enclose the
sampling train and sample point outlet with a shroud and enrich the shroud atmosphere with at
VIMS Design Submittal
Former TA Sherrill Construction Co ■ Charlotte, North Carolina
January 18, 2021; Revised: April 13, 2021 ■ Terracon Project No. 71197854

5

least 10 percent helium. A minimum of three purge volumes will be evacuated from the sample
point using a syringe. Purged soil gas will be directed to a tedlar bag and at the end of each purge
volume, screened for helium to assess for leaks in the sampling point seal and with a
photoionization detector (PID) (ppbRAE 3000 or equivalent) to assess for the presence of VOCs.
The shroud helium concentration and the helium concentration in the purged soil vapor will be
documented after each volume purged.

One purge volume will include the volume of the 5/8-inch previously removed threaded rod insert
minus the Vapor Pin® and neoprene seal volume. Based on this construction, one purge volume
is calculated at approximately 300-400 milliliters (mL); therefore, at least 900-1200 mL
(approximately 3 purge volumes) will be evacuated from the sample point prior to sample
collection. Terracon will adjust the required purge volume for each sample as needed based on
the as-built construction of each Vapor Pin®. Sample collection will begin if the tracer testing
indicates helium concentrations in the vapor point are less than or equal to 10 percent of the
helium concentration in the shroud, indicating a sufficiently sealed vapor point annulus. Shut-in
test and helium tracer test methods are depicted on the soil vapor sampling guide in
Appendix C.

Following the helium leak test, the valve to the purge device will be closed and the sample canister
valve will be opened to collect soil vapor for laboratory analysis. The sample will be collected at
a flow rate less than or equal to 200 mL per minute. The sample canister valve will be closed
when the gauge measures less than 6 inches of mercury (Hg) vacuum (i.e., when sampling is
complete). The final vacuum will not be allowed to reach 0 inches Hg vacuum.

Following completion of the sampling activities, the Summa® canisters, along with chain-of-
custody documentation, will be shipped to Con-Test Analytical Laboratory in East Longmeadow,
Massachusetts for laboratory analysis of volatile organic compounds (VOCs) by EPA Method
TO-15. North Carolina does not certify laboratories for air analysis; however, Con-Test is certified
to perform air analyses in the following States: Florida (#E871027 NELAP); Virginia (#1381); New
Jersey (#MA007 NELAP) and Maine (#2011028). Con-Test will be contacted in advance of the
soil vapor sampling event to ensure that the method detection limits will be lower than the
applicable screening level concentrations to the extent practical. Terracon will note estimated
concentrations between the laboratory reporting limits and method detection limits (“J-flagged”
concentrations), if any, in the report. In addition, Terracon will request Con-Test record the sample
canister vacuums on the chain-of-custody documentation upon their receipt. A level 2 QA/QC
data package will be requested for the gas samples. If the planned analytical laboratory changes
between Work Plan approval and the sampling event, Terracon will contact NCDEQ to confirm
that the new proposed laboratory satisfactorily meets certification needs.

Terracon understands that the DEQ is open to revisiting the frequency of indoor air sampling after
review of the sub-slab sampling laboratory results. At the present time, however, four planned
quarters of indoor air sampling is currently required, one of which is to occur pre-occupancy and
three of which are to occur post-occupancy, as discussed below. Furthermore, Terracon
VIMS Design Submittal
Former TA Sherrill Construction Co ■ Charlotte, North Carolina
January 18, 2021; Revised: April 13, 2021 ■ Terracon Project No. 71197854

6

understands that the vapor pins located within hallway that will be carpeted prior to occupancy
(VP-01 through VP-11) may be abandoned after the sub-slab testing has been completed.

Indoor Air Sampling
As required by DEQ, Terracon will also complete one pre-occupancy indoor air sampling event.
Terracon will collect one indoor air sample (plus one blind duplicate) at each vapor pin location
and one ambient outdoor (background) sample. The indoor air samples will be collected using
individually-certified 6-liter Summa® canister(s) placed within the human breathing zone (3 to 5
feet above floor level). The outdoor air sample will be collected using a 6-L Summa® canister
upwind of the site to provide a comparison between outdoor and indoor air. The canisters will be
obtained from a certified laboratory, certified clean, fitted with a vacuum gauge, and under a
vacuum of 25 to 30 inches of Hg. The canisters will be fitted with calibrated flow-controllers to
collect samples over a duration of approximately 8 hours. The vacuum of the canister will be
recorded periodically during sample collection. The sample canister valve will be closed when the
gauge measures less than 6 inches of Hg vacuum (i.e., sampling is complete). The final vacuum
will not be allowed to reach 0 inches Hg vacuum. The indoor and outdoor air samples will be
analyzed for a short-list of VOCs via EPA Method TO-15 to be determined based on results of
sub-membrane sampling. The short-list of compounds will be submitted for approval to the NCBP
prior to indoor air sampling.

During the sample collection period, Terracon will also conduct an indoor air survey within the
building to document possible indoor sources of VOCs. Indoor air will be screened for VOCs using
a ppbRAE 3000 or equivalent PID. The locations and types of construction materials and other
possible VOC sources in the vicinity of the indoor air samples will be documented on a site plan
along with the PID readings encountered in these areas. New construction materials such as
paint, carpet, etc., which could be sources of VOCs in indoor air, may cause interference with
Site-specific compounds during indoor air sampling. Therefore, the construction contractor will be
requested to provide safety data sheets (SDSs) for materials used during construction which will
be submitted to DEQ if elevated compounds are detected in indoor air. The contractor(s) shall be
instructed to not use building materials that contain the chlorinated solvents PCE or TCE.
5.0 POST-OCCUPANCY TESTING
As required by DEQ, three quarters of post-occupancy indoor air sampling will be conducted.
Following three quarterly indoor air sampling events (with the pre-occupancy indoor air sampling
as the first quarterly event) with results indicating acceptable concentration trends, and risk levels
for residential use, a request to terminate sampling will be submitted for DEQ approval. The DEQ
may request changes (or may accept requests for changes) to the sampling plan based on results
from post-construction sampling. The quarterly indoor air sampling events will be conducted using
the same methodologies described in Section 4.0 above.
VIMS Design Submittal
Former TA Sherrill Construction Co ■ Charlotte, North Carolina
January 18, 2021; Revised: April 13, 2021 ■ Terracon Project No. 71197854

7

6.0 FUTURE TENANTS & BUILDING USES
The future building use will be residential. After occupancy, the on-site property management will
maintain the VIMS per the Brownfields Agreement.

For building renovations or if VIMS components are exposed or damaged, the property
management will need to contact a North Carolina-licensed PE to oversee and/or inspect the
VIMS repair activities that shall be performed by a certified installation contractor. A report will be
submitted to NCDEQ detailing the repairs or alterations to the VIMS, if required.
7.0 REPORTING
Post-Construction Reporting
Upon completion of substantial portions of the system installation and post-construction/pre-
occupancy testing, Terracon will prepare and submit a report to NCDEQ, under the direct
supervision of a North Carolina-licensed PE. The report will summarize the following:

◼ Summary of VIMS installation;
◼ QA/QC measures;
◼ Post-construction effectiveness testing;
◼ Analytical laboratory results;
◼ DEQ Risk Calculator Evaluation; and
◼ An opinion of the VIMS effectiveness.

The appendix portion of the report will include as-built drawings, inspection logs with photographs
and field logs, and SDSs for materials using during construction. Subsequent indoor sampling
results will be submitted under separate cover than the final post-construction testing report. The
final report providing post-construction and pre-occupancy sampling results will be submitted to
the DEQ no later than 30 days prior to occupancy.

Post-Occupancy Reporting
Terracon will prepare and submit reports documenting the results of subsequent, post-occupancy
testing conducted at the site. Each report will include the analytical results of prior rounds of
testing and will include an opinion as to the continued performance of the VIMS and
recommendations.
8.0 DESIGN SUBMITTAL EXHIBITS
Design drawings are provided in Appendix A. Specifications of the Nitra-Seal are included in
Appendix B. The protocol for completing deadhead tests, helium tracer tests, and sub-slab soil
gas sampling is provided in the guide included in Appendix C.

FIGURES

TOPOGRAPHIC MAP
Former TA Sherrill Construction Co.
2000-2028 N. Brevard Street
Charlotte, North Carolina
TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY
QUADRANGLES INCLUDE: DERITA, NC (1/1/1993) and CHARLOTTE EAST, NC (1/1/1988).
2701 Westport Road
Charlotte, NC 28208-3608
71197854
Project Manager:
Drawn by:
Checked by:
Approved by:
WOF
CLC
CLC
1”=2,000’
71197854.1
Feb 2021
Project No.
Scale:
File Name:
Date: 1
WOF Figure
APPROXIMATE
SITE BOUNDARY
Sample Location Map FIGURENO.
#*
#*
#*
#*
@A
@A
@A
NC Center for Geographic Information & Analysis
Legend
Site BoundaryTax Parcels
@A Groundwater Sample
#*Soil Vapor Sample
Former TA Sherrill Construction Co.2000 - 2008 North Brevard StreetCharlotte, Mecklenburg County, North Carolina2701 Westport Road Charlotte, North Carolina 28208Phone: [phone] Fax: [phone]
³
0 100 20050Feet
PM:
Drawn By:
Checked By:
Approved By:
WOF
WOF
CLC
CLC
Project No:
Scale:
Filename:
Date:April 2021
1 inch = 100 feet
71197854
2
East 23rd StreetNorth Brevard StreetCharlotte Light RailWarp + WeftApartments
Sumter PackagingCorporation
TW-03
TW-04
SV-04
SV-03
SV-01
SV-02
TW-02

TABLES

Table 1
Summary of Historical Groundwater Analytical Results
February 2020
Former TA Sherrill Construction Co.
2000-2028 North Brevard Street
Charlotte, Mecklenburg County, North Carolina Terracon
Project No. 71187854
Sample ID:TW-2
Sample Date:2/3/2020
Location/Area:
Down-gradient
of the fill
materials
Depth to Water
(DTW):9.60 ft
Anthracene 2,000 0.097J
Benzo(a)pyrene 0.005 0.014J
Benzo(b)fluoroanthene 0.05 0.022J
Di-n-butylphthalate 700 3.0J
Diethylphthalate 6,000 0.30J
Chromium (Total)10 6.1
Lead 15 34
Barium 700 240
Cadmium 2 0.14J
Notes:
All results are shown in micrograms per liter (µg/L).
Only detected compounds are shown.
Detections are indicated in bold.
J - Estimated concentration between method detection limit and reporting limit.
Total chromium is assumed to consist exclusively of trivalent chromium based on lack
of hexavalent chromium detections within on-site soils.
Concentrations highlighted in yellow exceed their respective NCDEQ 2L groundwater standard.
Analyte
NCDEQ 2L
Groundwater
Standard
Semi-Volatile Organic Compounds by EPA Method 8270
RCRA Metals by EPA Method 6020 (Chromium IV by Method 7196A)
Table 2
Summary of Groundwater Analytical Results March 2020
Former TA Sherrill Construction Co
2000-2028 N. Brevard Street
Charlotte, Mecklenburg County, North Carolina Terracon
Project No. 71187854
Sample ID:TW-3 TW-4
Sample Date:3/12/2020 3/12/2020
Depth to
Water (DTW):15.0 13.9
Acetone 5.4 J <190 6,000
Benzene <0.18 340 1
n-Butylbenzene <0.21 74 70
sec-Butylbenzene <0.16 25 J 70
Chloroform 0.27 J <8.5 70
cis-1,2-Dichloroethylene 0.66 J <6.5 60
Ethylbenzene <0.13 3300 600
Isopropylbenzene (Cumene)<0.17 180 70
p-Isopropyltoluene (p-Cymene)<0.20 77 25
Naphthalene <0.31 750 6
n-Propylbenzene <0.13 410 70
Tetrachloroethylene 7.2 <9.0 0.7
Toluene <0.14 31 J 600
1,2,4-Trimethylbenzene <0.18 3400 400
1,3,5-Trimethylbenzene <0.14 870 400
m+p Xylene <0.30 11000 500
o-Xylene <0.17 250 500
Acenaphthene <0.034 0.34 80
Acenaphthylene <0.036 0.1 J 200
Anthracene <0.033 0.052 J 2,000
Carbazole <0.29 1.1 J 2
Dibenzofuran <0.27 0.36 J 28
2,4-Dimethylphenol <0.81 18 100
Fluorene <0.035 0.61 J 300
1-Methylnaphthalene <0.29 46 1
2-Methylnaphthalene <0.063 87 30
Naphthalene <0.26 460 6
Phenanthrene <0.031 0.6 200
Arsenic <0.64 1.7 10
Barium 34 58 700
Chromium 2 1.2 10
Lead 0.46 J 0.51 400
Notes:
Samples were collected on March 12, 2020.
All results are shown in micrograms per liter (µg/L).
Only compounds detected in one or more sample are shown.
Detections are indicated in bold.
J - Estimated concentration between method detection limit and reporting limit.
Concentrations highlighted in yellow exceed their respective NCDEQ 2L groundwater standard.
NCDEQ 2L
Groundwater
Standard
Analyte
Semi-Volatile Organic Compounds by EPA Method 8270
Volatile Organic Compounds by EPA Method 8260
RCRA Metals by EPA Method 6020
Table 3
Summary of Historical Soil Vapor Analytical Results
Former TA Sherrill Construction Co
2000-2028 North Brevard Street
Charlotte, Mecklenburg County, North Carolina
Terracon Project No. 71187854
Sample ID:SV-01 SV-02 SV-03 SV-04
Sample Date:02/03/20 02/03/20 02/03/20 02/03/20
Sample Depth:4.5-5 4.5-5 4.5-5 4.5-5
220,000 2,700,000 26 120 21 160
Benzene 120 1,600 2.1 4.2 1.1 3.3
1,3-Butadiene 14 180 3.4 <0.32 <0.32 <0.32
2-Butanone (MEK)35,000 440,000 3.8J 17J 3.7J 23J
Carbon Disulfide 4,900 61,000 <0.43 22 2.3J 11
Chloroform 41 530 0.94J <0.36 4.3 <0.36
Dichlorodifluoromethane (Freon 12)700 8,800 <0.43 <0.43 14 29
cis-1,2-Dichlorothylene NE NE <0.32 67 <0.32 1.3
trans-1,2-Dichloroethylene NE NE <0.32 1.4 <0.32 <0.32
1,2-Dichloro-1,2,2-tetrafluroroethane (Freon 114)NE NE <0.79 <0.79 77 49
Ethanol NE NE 20 32 9.8J 17
Ethylbenzene 370 4,900 7.6 120 2.1 8.7
Heptane 2,800 35,000 3.3 46 8.7 12
Hexane 4,900 61,000 16J 21J <1.2 26J
Methyl tert-Butyl Ether (MTBE)3,600 47,000 <0.36 2.4 <0.36 <0.36
Methylene Chloride 4,200 1,800,000 1.0J <0.84 0.97J 1.5J
Naphthalene 21 260 <0.80 <0.80 1.0 16
Propene NE NE 31 72 <0.64 160
Styrene 7,000 88,000 <0.53 16 4.4 <0.53
Tetrachloroethylene 280 3,500 5.5 26 14 <0.75
Toluene 35,000 440,000 49 23 3.5 7.2
Trichloroethylene 14 180 <0.43 6.1 <0.43 <0.43
Trichlorofluoromethane (Freon 11)NE NE 5.8 <0.85 68 <0.85
1,3,5-Trimethylbenzene 420 5,300 <0.62 1.5 <0.62 3.2
m&p-xylene 700 8,800 29 16 8.0 15
o-Xylene 700 8,800 8.6 4.3 4.4 25
Notes:
Concentrations are reported in micrograms per cubic meter (μg/m3) unless otherwise noted.
Only detected compounds are shown.
Concentrations detected above the laboratory reporting limit are shown in bold.
NS - no standard
DWM - North Carolina Department of Environmental Quality, Division of Waste Management
SGSL - DWM Sub-slab and Exterior Soil Gas Screening Level, updated February 2018.
Concentrations highlighted in yellow exceed their respective residential SGSL.
Residential
Screening Levels
SGSL
Non-
Residential
Screening
Levels SGSL
Analyte
Acetone
EPA Method TO-15

APPENDIX A

NOTICE FOR CONTRACTORALL CONTRACTORS AND SUBCONTRACTORS PERFORMING WORK SHOWN ON OR RELATEDTO THESE PLANS SHALL CONDUCT THEIR OPERATIONS SO THAT ALL EMPLOYEES AREPROVIDED A SAFE PLACE TO WORK AND THE PUBLIC IS PROTECTED. ALL CONTRACTORSAND SUBCONTRACTORS SHALL COMPLY WITH THE "OCCUPATIONAL SAFETY AND HEALTHREGULATIONS" OF THE U.S. DEPARTMENT OF LABOR AND ALL LOCAL AND STATEREGULATIONS.THE OWNER AND THE VIMS DESIGNER SHALL NOT BE RESPONSIBLE IN ANY WAY FORCONTRACTORS AND SUBCONTRACTORS COMPLIANCE WITH THE "OCCUPATIONAL SAFETYAND HEALTH REGULATIONS" OF THE U.S. DEPARTMENT OF LABOR AND ALL LOCAL ANDSTATE REGULATIONS.CONTRACTOR AGREES THAT HE SHALL ASSUME SOLE AND COMPLETE RESPONSIBILITYFOR JOB SITE CONDITIONS DURING THE COURSE OF CONSTRUCTION OF THIS PROJECT,INCLUDING SAFETY OF ALL PERSONS AND PROPERTY, THAT THIS REQUIREMENT SHALLAPPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS, AND THAT THECONTRACTOR SHALL DEFEND, INDEMNIFY, AND HOLD THE OWNER AND THE VIMSDESIGNER HARMLESS FROM ANY AND ALL LIABILITY REAL OR ALLEGED, IN CONNECTIONWITH THE PERFORMANCE OF WORK ON THIS PROJECT, EXCEPT FOR LIABILITY ARISINGFROM THE SOLE NEGLIGENCE OF THE OWNER OR THE VIMS DESIGNER.IN CASE OF CONFLICT BETWEEN THESE PLANS AND OTHER SITE DESIGN DOCUMENTSAND/OR MANUFACTURER SPECIFICATIONS / REQUIREMENTS THE APPROPRIATE PARTIES /COMPANIES WITH CONFLICTING DOCUMENTATION SHALL CONFER TO DETERMINE AMUTUALLY AGREED UPON SOLUTION.PLANS & SPECIFICATIONS FORVAPOR INTRUSION MITIGATION SYSTEMBROADSTONE OPTIMIST PARK20000 N. BREVARD STREETCHARLOTTE, NORTH CAROLINASITEPROJECT SITE LOCATION_________________________________________________________________________________________INDEX OF SHEETS_________________________________________________________________________________________VIMS-1TITLE SHEET AND GENERAL NOTESVIMS-2 VAPOR INTRUSION MITIGATION SYSTEM PLAN - FIRST FLOORVIMS-3VAPOR INTRUSION MITIGATION SYSTEM PLAN - SECOND FLOORVIMS-4VAPOR INTRUSION MITIGATION SYSTEM PLAN - ROOFVIMS-5VAPOR INTRUSION MITIGATION SYSTEM DETAILS - MEMBRANEVIMS-6VAPOR INTRUSION MITIGATION SYSTEM DETAILS - PIPINGGRAVELSievePercent Passing3/4" GRAVEL3/8" GRAVEL1-1/2"100-1"95-100-3/4"90-1001003/8"20-5570-95No. 40-100-25No. 80-50-10ASTM C 131 Test GradingBCTASKS TO BE COMPLETEDRECOMMENDED CONTRACTOR / TRADERESPONSIBLE FOR TASKGCVIMS SUB CONTRACTORSUBGRADE PREPARATIONPLACEMENT OF 4-INCH MIN. COMPACTED AGGREGATE LAYER ABOVESUBGRADE.XPREPARATION OF AGGREGATE TO ALLOW FOR MEMBRANE ATTACHMENTTO VERTICAL AND HORIZONTAL SURFACESXCONSTRUCTION OF 12-INCH THICK CONCRETE PENETRATION BANKSWHERE UTILITY CONDUITS ARE CONCENTRATED.XINSTALLATION OF VAPOR COLLECTION SYSTEMEXCAVATION OF TRENCHES FOR TRANSITION PIPING AND LOW PROFILEVAPOR COLLECTION PIPING.XXINSTALLATION OF PIPE TRANSITIONS THROUGH GRADE BEAMS ORTHICKENED SLABS.XINSTALLATION OF VAPOR COLLECTION PIPING AND TRANSITION PIPINGXXCONNECTION OF THE VAPOR COLLECTION TO PIPE COUPLINGS.XBACKFILL OF AGGREGATE OVER THE HEADER PIPE AND VAPORCOLLECTION AFTER INSTALLATION IS COMPLETED.XXCONNECTION OF THE EXHAUST PIPE TO A ROOF MOUNTED VENTILATOR.XINSTALLATION OF VENT PIPE RISER SAMPLE PORTS AND ACCESS PANELON INTERIOR WALL.XINSTALLATION OF 3-INCH VERTICAL VENT RISERS, ENDING A MINIMUM OF24" ABOVE FINISHED ROOF.XINSTALLATION OF GAS VAPOR MEMBRANEREMOVAL OF EXCESS SOILS FROM BUILDING PAD AND SITE, IFNECESSARY.XPLACEMENT OF BASE HDPE/GEOTEXTILE LAYER AND VIMS MEMBRANE.XINSTALLATION OF SUB-SLAB MONITORING POINTXXSEALING OF ALL FLOOR SLAB PENETRATIONSXPLACEMENT OF HDPE/GEOTEXTILE LAYER OVER VIMS MEMBRANE.XPERFORMANCE OF SMOKE TEST AND FINAL QC OF VIMS MEMBRANE.XINSPECTION OF SYSTEM BY CERTIFIED VIMS MEMBRANE TECHNICIANDURING INSTALLATION.XNOTESI. APPLICABILITYA.GENERAL1.A PASSIVE VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SHALL BE INSTALLED AND WILL INCLUDE A 40-MIL DRYTHICKNESS APPLICATION OF SPRAY-APPLIED ASPHALTIC MEMBRANE UNDERLAIN BY A LOW-PROFILE GAS VENTSYSTEM VENTED AT THE ROOF. THE VIMS IS DESIGNED TO BE CONVERTED TO AN ACTIVE SYSTEM IF NEEDED(SEE SECTION II,A,A.5, BELOW).2.VIMS DETAILS PRESENTED IN THESE PLANS AND SPECIFICATIONS SHALL BE UTILIZED IN THE CONSTRUCTIONOF THE BUILDING DESIGNATED ON SHEETS VIMS-1 THROUGH VIMS-6. THE BASIS OF DESIGN IS ASPRAY-APPLIED MEMBRANE AND ANY ASSOCIATED VENTING MATERIALS AS DESCRIBED IN THESE PLANS.MANUFACTURERS OF TO APPROVED PRODUCTS ARE PROVIDED BELOW THE MEMBRANE AND MATERIALS MAYBE SUBSTITUTED FOR EQUIVALENT PRODUCTS IF APPROVED BY THE VIMS DESIGNER. NOTE: LIQUID BOOT 500IS NOT AN APPROVED EQUIVALENT.3.THE VIMS MEMBRANE WILL ALSO SERVE AS A MOISTURE MEMBRANE AND WILL REPLACE ANY VAPOR ORMOISTURE BARRIER SPECIFIED IN THE STRUCTURAL DETAILS. INSTALLATION OF A MOISTURE OR VAPORBARRIER BETWEEN THE VIMS MEMBRANE AND BUILDING FLOOR SLAB MAY VOID THE WARRANTY PROVIDED BYTHE VIMS MEMBRANE MANUFACTURER.4.WATERPROOFING WILL BE INSTALLED BY THE GENERAL CONTRACTOR AS SPECIFIED IN THE ARCHITECTURALDRAWINGS AND SHALL BE INSTALLED TO MITIGATE AGAINST VAPOR INTRUSION INTO INDOOR AIR.WATERPROOFING MATERIALS FOR VAPOR INTRUSION MITIGATION SHALL BE COMPATIBLE WITH THE VIMSMEMBRANE TO FORM A GAS-TIGHT SEAL. ALL WATERPROOFING MATERIALS SHALL BE REVIEWED BY THE VIMSDESIGNER AND VIMS MEMBRANE MANUFACTURER FOR COMPATIBILITY WITH THE VIMS MEMBRANE AND THEVAPOR CONTAMINANTS PRESENT IN THE SUBSURFACE. MANUFACTURER'S PRODUCT INFORMATION ANDINSTALLATION PROCEDURES SHALL BE SUBMITTED TO AND APPROVED PRIOR TO INSTALLATION.B.SYSTEM COMPONENTS1.THE VIMS CONSTRUCTION SHALL CONSIST OF, BUT NOT BE LIMITED TO, THE FOLLOWING:a.SUPPLY AND INSTALL 4-INCH AGGREGATE LAYER BENEATH FOUNDATION SLAM. MATERIAL TYPE PERGEOTECHNICAL REPORT.b.SUPPLY AND INSTALL LOW PROFILE VAPOR COLLECTION PIPING AND ASSOCIATED FITTINGSc.SUPPLY AND INSTALL 3-INCH PVC CONVEYANCE PIPINGd.SUPPLY AND INSTALL 3-INCH TRANSITION PIPINGe.SUPPLY AND INSTALL 40-MIL ASPHALTIC LAYERf.SUPPLY AND INSTALL PROTECTIVE AND BASE HDPE/GEOTEXTILE LAYERS ABOVE AND BELOW THEASPHALTIC LAYER, RESPECTIVELYg.INSTALLATION OF SUB-SLAB MONITORING POINTSh.PERFORM SMOKE AND COUPON TESTING OF THE VIMS MEMBRANEi.SUPPLY AND INSTALL SCH. 40 PVC VERTICAL VENT RISER PIPING, SAMPLE PORTS, AND GAS FITTINGSj.COMPLETE CONNECTION OF VERTICAL VENT RISER PIPING TO ROOF AS APPROPRIATEk.INSTALL ROOF-MOUNTED VENTILATORS2.ALL MATERIALS ARE TO BE DELIVERED TO THE PROJECT SITE IN THEIR ORIGINAL UNBROKEN PACKAGESBEARING THE MANUFACTURER'S LABEL SHOWING BRAND, WEIGHT, VOLUME, BATCH NUMBER AND DATE.MATERIALS ARE TO BE STORED AT THE PROJECT SITE IN STRICT COMPLIANCE WITH THE MANUFACTURER'SINSTRUCTIONS.II.VAPOR INTRUSION MITIGATION SYSTEMA.VAPOR COLLECTION AND VENT SYSTEMA.1AGGREGATE LAYER1.A MINIMUM 4-INCH LAYER OF GRAVEL AGGREGATE SHALL BE PROVIDED BENEATH THE FOUNDATION SLAB. THEAGGREGATE LAYER SHALL BE A FINE TO MEDIUM AGGREGATE AND CONTAIN NO MORE THAN 5% FINES (I.E. ≤5%PASSING #200 SIEVE). THE GRADATION OF THE AGGREGATE PLACED BELOW THE MEMBRANE SHALL MEET THEFOLLOWING SPECIFICATIONS OR AS SPECIFIED IN THE GEOTECHNICAL REPORT IF APPROVED BY THE VIMSDESIGNER:2.THE AGGREGATE WILL BE PLACED 2-INCHES ABOVE AND 1-INCH BELOW THE VAPOR COLLECTION PIPING ASSHOWN IN DETAIL 01, SHEET VIMS-5.3.ANY AGGREGATE REMOVED DURING PLACEMENT OF UTILITIES MUST BE PLACED BACK TO LEVEL GRADE ANDCOMPACTED AS SPECIFIED IN THE PROJECT PLANS AND SPECIFICATIONS. UTILITIES PLACED IN THEAGGREGATE LAYER MAY NOT BE LARGER THAN 1-INCH IN DIAMETER. UTILITIES LARGER THAN 1-INCH INDIAMETER MUST BE BURIED INTO THE SUBGRADE SUCH THAT NO MORE THAN 1 INCH OF THE AGGREGATELAYER IS AFFECTED.4.THE SUBGRADE UNDER THE AGGREGATE SHALL BE ROLLED SMOOTH AND MOISTURE CONDITIONED ASNECESSARY TO ACHIEVE THE COMPACTION SPECIFIED IN THE GEOTECHNICAL ENGINEER'S SPECIFICATION.A.2 SUB-SLAB VAPOR COLLECTION PIPING1.SUB-SLAB LOW PROFILE VAPOR COLLECTION PIPING SHALL BE COMPRISED OF ONE-FOOT WIDE BY ONE-INCHTHICK CORRUGATED HDPE PIPING WRAPPED IN GEOTEXTILE OR EQUIVALENT AS APPROVED BY THE VIMSDESIGNER.2.VAPOR COLLECTION PIPING SHALL BE INSTALLED AT LOCATIONS SHOWN ON VIMS-2 AND PLACED WITHIN THE4-INCH AGGREGATE LAYER. LOW PROFILE VAPOR COLLECTION PIPING SHALL BE PLACED SUCH THAT NO AREABENEATH THE SLAB/ FOUNDATION IS MORE THAN 25 FEET FROM THE VAPOR COLLECTION PIPING.3.VAPOR COLLECTION PIPING SHALL BE CONNECTED TO 3-INCH SOLID SCHEDULE 40 PVC TRANSITION PIPING TOTHE VENT RISERS, CONNECTING TO SCH. 40 PVC ELBOWS TURNING UP THROUGH THE FLOOR SLAB ADJACENTTO FOUNDATION FOOTINGS AND STRUCTURAL COLUMNS. ALL TRANSITION PIPING SHALL BE IN PLACE PRIOR TOPOURING THE FOUNDATION GRADE BEAMS OR FOOTINGS WHEN POURED SEPARATELY FROM THE FLOOR SLAB.THE PIPING TRANSITIONS SHALL BE ACCOMPLISHED IN COMPLIANCE WITH THE ALL APPLICABLE BUILDINGCODES AND WITH THE APPROVAL OF THE PROJECT STRUCTURAL ENGINEER AND/OR BUILDING OFFICIAL.A.3ABOVE SLAB GAS VENT RISER1.VENT RISER TO THE ROOF SHALL BE COMPRISED OF 4-INCH DIAMETER SCH. 40 PVC. RISER PIPING SHALL BELOCATED WITHIN THE WALLS/CHASES OR INSTALLED ADJACENT TO INTERIOR SUPPORT COLUMNS.2.THE RISER PIPE TO THE ROOF SHALL BE FULLY SUPPORTED THROUGH THE ENTIRE HEIGHT OF THE BUILDINGWITH PIPE CLAMPS OR SIMILAR, SUCH THAT NO DOWNWARD FORCE (DUE TO THE WEIGHT OF THE RISER PIPE)IS EXERTED ON THE SUBSLAB VENTING SYSTEM.3.A 304 STAINLESS STEEL HEX REDUCING BUSHING (MNPT X FNPT, 1/2" X 1/4") SHALL BE TAPPED INTO THE PIPINGAND SEALED PERMANENTLY FOR GAS-TIGHT APPLICATIONS. A QUICK-CONNECT COUPLER SHALL BE INSTALLEDIN THE BUSHING AND SEALED WITH GAS-RATED TEFLON TAPE TO ALLOW FOR REMOVAL DURING MONITORING(SEE DETAILS 12 AND 13, SHEET VIMS-6).4.THE RISER PIPE SHALL BE EQUIPPED WITH A 4-INCH SHUTOFF VALVE TO ALLOW FOR SHUTOFF OF AIR FLOWABOVE THE VALVE DURING SAMPLING OR OPERATION OF AN ACTIVE SYSTEM. THIS VALVE SHALL BE INSTALLEDINLINE ABOVE THE ROOF LINE (SEE DETAILS 12 AND 13, SHEET VIMS-6).5.PLACARDS SHALL BE INSTALLED ON EACH VENT RISER APPROXIMATELY EVERY 5 FEET AND AT ANY EXPOSEDRISER PIPING (SEE DETAIL 16, SHEET VIMS-6).6.A VIMS MEMBRANE IDENTIFICATION SIGN SHALL BE INSTALLED IN UTILITY AND MECHANICAL ROOMS (SEEDETAIL 15, SHEET VIMS-6). THIS SIGN IS TO BE PLACED ON THE WALLS AT EYE LEVEL AND SHALL NOT BECOVERED OVER. THE LOCATION OF THIS NOTIFICATION WILL BE DETERMINED BY THE CONTRACTOR, OWNER,OR BUILDING OFFICIAL.A.4PASSIVE VENTILATOR1.A PASSIVE VENTILATOR CAPABLE OF 26 CFM WITH A 4 MPH WIND SHALL BE INSTALLED ON AT THE TOP OF EACHVENT RISER PIPE ABOVE THE ROOF LINE. THE VENTILATORS SHALL INCLUDE BASES, REDUCING COUPLINGS,AND ALL OTHER REQUIRED ACCESSORIES FOR A SECURE CONNECTION TO THE VENT RISER PIPING.2.THE AURA AV-04 ROOF VENT IS AN ACCEPTABLE PASSIVE VENTILATOR (SEE DETAIL 14, SHEET VIMS-6). THESEPRODUCTS ARE MANUFACTURED BY ACTIVE VENTILATION PRODUCTS, INC.; 1-800-247-3463;WWW.ROOFVENTS.COM.3.THE PASSIVE VENTILATORS SHALL BE INSTALLED IN ACCORDANCE WITH INDUSTRY STANDARDS ASRECOMMENDED BY THE MANUFACTURER.4.RISER PIPES SHALL TERMINATE A MINIMUM OF 24 INCHES ABOVE THE ROOF-LINE OR 12 INCHES ABOVE ASURROUNDING PARAPET, EQUIPPED AND BRACED APPROPRIATELY IN ACCORDANCE WITH APPLICABLEBUILDING CODES (SEE DETAIL 13, SHEET VIMS-6).5.ROOF-MOUNTED VENTILATORS SHALL BE LOCATED AT A DISTANCE OF NOT LESS THAN 15 FEET FROM ANYBUILDING AIR INTAKE AND AT A DISTANCE OF AT LEAST 4 FEET FROM ANY PROPERTY LINE.A.5VACUUM BLOWER (FOR ACTIVE VIMS OPTION ONLY)1.IF FUTURE SYSTEM ACTIVATION IS WARRANTED, A VACUUM BLOWER CAPABLE OF ACHIEVING A NEGATIVEPRESSURE FIELD BENEATH THE SLAB WILL BE INSTALLED.2.THE BLOWER WILL SIZED IN THE FIELD BY PERFORMING A COMMUNICATION TEST FOR THE DESIGNED SYSTEM.3.IN ORDER TO ACCOMMODATE THE ADDITION OF A FUTURE BLOWER, IT IS RECOMMENDED THAT ELECTRICALSERVICE BE AVAILABLE ON THE ROOF.4.THE VACUUM BLOWER SHALL BE INSTALLED IN ACCORDANCE WITH INDUSTRY STANDARDS AS RECOMMENDEDBY THE MANUFACTURER.B.VIMS MEMBRANEB.1MATERIALS1.THE VIMS MEMBRANE SHALL CONSIST OF A SPRAYED-ON OR LOCALLY TROWEL APPLIED, ASPHALTIC EMULSIONLAYER BETWEEN TWO LAYERS OF PROTECTIVE HDPE/GEOTEXTILE MATERIAL.2.INSTALLATION OF THE BASE LAYER AND PROTECTIVE FABRIC SHALL BE INSTALLED IN ACCORDANCE WITH THEMANUFACTURER'S SPECIFICATIONS UNLESS OTHERWISE SPECIFIED AND APPROVED BY THE VIMS DESIGNER.B.2BASE AND PROTECTIVE LAYERS1.THE BASE LAYER SHALL CONSIST OF A CHEMICALLY RESISTANT HDPE/GEOTEXTILE MATERIAL SUPPLIED BY THEMANUFACTURER AND APPROVED BY THE VIMS DESIGNER. THE BOTTOM BASE LAYER IS INSTALLED AS ACARRIER FABRIC FOR THE VIMS MEMBRANE.2.THE UPPER SURFACE OF THE VIMS MEMBRANE SHALL BE PROTECTED BY A MANUFACTURER APPROVEDPROTECTIVE HDPE/GEOTEXTILE LAYER, PLACED BETWEEN THE FLOOR SLAB AND THE MEMBRANE ASSPECIFIED ON THESE PLANS. THE PROTECTIVE LAYER IS INSTALLED AFTER THE APPLICATION, CURING, ANDTESTING OF THE ASPHALTIC MEMBRANE.B.3SPRAY-APPLIED ASPHALTIC MEMBRANE1.THE VIMS MEMBRANE SHALL CONSIST OF A SPRAY-APPLIED EMULSION LAYER WITH A MINIMUM CURED (DRY)THICKNESS OF 40-MILS AND SHALL BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER'SSPECIFICATIONS UNLESS OTHERWISE SPECIFIED AND APPROVED BY THE VIMS DESIGNER.2.THE VIMS MEMBRANE SHALL BE PLACED BENEATH THE FLOOR SLAB, FOOTINGS, AND TRENCHES INACCORDANCE WITH THESE PLANS AND DETAILS. THE VIMS MEMBRANE SHALL NOT BE PLACED ON TOP OF ANYCONCRETE PIERS OR EXTENDED REBAR.3.SEAMS SHALL BE OVERLAPPED A MINIMUM OF 6 INCHES AND SEALED IN ACCORDANCE WITH THESPECIFICATIONS SET FORTH IN THESE PLANS (SEE DETAIL 05, SHEET VIMS-5).B.4PENETRATION SEALS1.WHERE UTILITIES, VENT LINES, PIPING, ELECTRICAL CONDUITS, ETC. PENETRATE THE VIMS MEMBRANE, A3-INCH COLLAR OF REINFORCEMENT FABRIC AND ASPHALTIC MEMBRANE SHALL BE PROVIDED TO CREATE AGAS-TIGHT SEAL AROUND THE PENETRATION IN ACCORDANCE WITH THE MANUFACTURERS SPECIFICATIONSAS SHOWN ON DETAIL 03, SHEET VIMS-5.2.WHERE PENETRATIONS SUCH AS ELECTRICAL UTILITY CONDUITS, PLUMBING PIPING, ETC. ARECONCENTRATED, A CONCRETE PENETRATION BANK WILL BE CONSTRUCTED TO SECURE THE PENETRATIONSIN-PLACE (SEE DETAIL 04, SHEET VIMS-5). THE PENETRATION BANK SHALL BE CONSTRUCTED USING A MINIMUMTHICKNESS OF 12 INCHES THE TOP OF EXTENDING A MINIMUM OF 8 INCHES FROM ANY PENETRATION,ALLOWING FOR A MINIMUM 6-INCH ATTACHMENT OF THE VIMS MEMBRANE, SIMILAR TO AN ATTACHMENT TO ANINTERIOR FOOTING. THE TOP OF THE PENETRATION BANK SHALL BE BELOW THE BOTTOM OF THE SLAB.PENETRATIONS SHALL NOT BE IN CONTACT WITH ADJACENT PENETRATIONS OR OTHER OBJECTS TO ALLOWPROPER SEALING AROUND THE ENTIRE PENETRATION CIRCUMFERENCE.C.4UALITY ASSURANCE1.THE VIMS SUBCONTRACTOR SHALL BE TRAINED AND APPROVED BY THE VIMS MATERIAL MANUFACTURER. THEVIMS SUBCONTRACTOR SHALL PROVIDE THE VIMS DESIGNER WITH A LETTER FROM THE MANUFACTURER (A)CONFIRMING THAT THE VIMS SUBCONTRACTOR RETAINED BY THE OWNER FOR THE PERFORMANCE OF THISSCOPE OF WORK IS CERTIFIED BY THE MANUFACTURER FOR INSTALLATION OF THE MATERIAL; AND (B)WARRANTING ITS MATERIAL TO BE FREE OF DEFECTS WHEN THAT MATERIAL IS INSTALLED BY THE VIMSSUBCONTRACTOR.2.A PRE-INSTALLATION CONFERENCE SHALL BE HELD PRIOR TO THE APPLICATION OF THE VIMS MEMBRANE TOCOORDINATE PROPER SUBSTRATE AND INSTALLATION CONDITIONS AND PROCEDURES. THE VIMSSUBCONTRACTOR, SITE SUPERINTENDENT, THE FOUNDATION SUBCONTRACTOR, SUBSLAB UTILITYCONTRACTORS, AND THE VIMS DESIGNER SHALL BE PRESENT AT THIS MEETING.3.THE INSTALLATION OF THE VIMS MEMBRANE SHALL BE CLOSELY MONITORED BY THE VIMS DESIGNER OR HISDESIGNATED REPRESENTATIVE. INSPECTIONS SHALL TYPICALLY BE PERFORMED PRIOR TO, DURING, ANDSUBSEQUENT TO THE INSTALLATION OF THE VAPOR COLLECTION PIPING AND APPLICATION OF THE VIMSMEMBRANE. IT IS THE RESPONSIBILITY OF THE VIMS SUBCONTRACTOR TO NOTIFY THE OWNER AND VIMSDESIGNER WITHIN 72 HOURS OF BEGINNING ANY PORTION OF THIS WORK.4.ALL SURFACES TO RECEIVE THE VIMS MEMBRANE TERMINATIONS SHALL BE INSPECTED AND APPROVED BYTHE VIMS SUBCONTRACTOR FOR THE PERFORMANCE OF THIS SCOPE OF WORK AND BY THE VIMS DESIGNERPRIOR TO COMMENCING WORK.5.PRIOR TO PLACING THE FLOOR SLAB OVER THE MEMBRANE, THE VIMS DESIGNER SHALL INSPECT ANDAPPROVE THE MEMBRANE IN ACCORDANCE WITH THESE PLANS AND SPECIFICATIONS. CONSTRUCTION OF THEFLOOR SLAB SHALL NOT PROCEED WITHOUT WRITTEN CERTIFICATION OF THE SUCCESSFUL INSTALLATION BYTHE VIMS SUBCONTRACTOR.D.SUBMITTALS1.THE VIMS SUBCONTRACTOR SHALL SUBMIT ANY UPDATES OR REVISIONS TO THE MANUFACTURER'S MATERIALDATA AND RECOMMENDED INSTALLATION PROCEDURES TO THE VIMS DESIGNER FOR REVIEW AND APPROVALAT LEAST ONE WEEK PRIOR TO THE CONSTRUCTION OF THE VIMS MEMBRANE.2.THE VIMS SUBCONTRACTOR SHALL SUBMIT REPRESENTATIVE SAMPLES OR MANUFACTURER'S PRODUCTSPECIFICATIONS OF THE FOLLOWING TO THE VIMS DESIGNER FOR APPROVAL:nBASE HDPE/GEOTEXTILE AND UPPER PROTECTIVE MATERIALSnASPHALTIC MEMBRANEnREINFORCEMENT FABRICnAGGREGATE MATERIALnLOW PROFILE VAPOR COLLECTION PIPING3.AT THE COMPLETION OF INSTALLATION, THE VIMS SUBCONTRACTOR SHALL SUBMIT A LETTER TO THE VIMSDESIGNER AND TO THE OWNER CERTIFYING THAT VIMS INSTALLATION WAS COMPLETED IN ACCORDANCE WITHTHE PROJECT PLANS AND SPECIFICATIONS AS WELL AS MANUFACTURER SPECIFICATIONS.E.WARRANTY1.TERRACON RECOMMENDS THE OWNER OBTAIN A WARRANTY FOR THE VIMS MEMBRANE. THE MANUFACTURERPROVIDES PRODUCT AND/OR SYSTEM WARRANTIES FOR THE VIMS MEMBRANE RANGING FROM ONE YEAR T0 30YEARS IN DURATION.2.THE VIMS MANUFACTURER MAY REQUIRE SUBMITTAL OF DESIGN DOCUMENTS, ENVIRONMENTAL REPORTS,GEOTECHNICAL REPORTS, OR OTHER DOCUMENTATION FOR REVIEW PRIOR TO ISSUING A WARRANTY, ANDADDITIONAL COSTS MAY APPLY. PLEASE CONTACT THE SELECTED MANUFACTURER FOR WARRANTY TERMSAND CONDITIONS AND ADDITIONAL INFORMATION.3.MANUFACTURERS EXTENDED WARRANTIES MUST BE REQUESTED BY THE OWNER PRIOR TO VIMSINSTALLATION BID REQUESTS.F.JOB CONDITIONS1.THE AREAS ADJACENT TO THE VIMS MEMBRANE ARE TO BE PROTECTED BY THE VIMS SUBCONTRACTOR FORTHE PERFORMANCE OF THIS SCOPE OF WORK DURING THE INSTALLATION PROCESS. WHERE NECESSARY,MASKING OR OTHER PROTECTIVE MEASURES SHALL BE UTILIZED TO PREVENT STAINING OF SURFACESBEYOND THE LIMITS OF THE APPLICATION.2.WORK IS TO BE PERFORMED ONLY WHEN EXISTING AND FORECASTED WEATHER CONDITIONS ARE WITHIN THEMANUFACTURER RECOMMENDATIONS FOR THE MATERIAL AND PRODUCT USED. THE APPLICATION OF THEVIMS MEMBRANE COMPOUNDS SHALL BE SUSPENDED IF THE AMBIENT TEMPERATURE FALLS BELOW 45° F, ORDURING PERIODS OF PRECIPITATION. APPLICATION OF THE VIMS MEMBRANE MAY BE PERFORMED BELOW 45°F, BUT ONLY WITH WRITTEN PERMISSION FROM THE VIMS DESIGNER AND MATERIAL MANUFACTURER.3.A MINIMUM CLEARANCE OF 24 INCHES IS REQUIRED FOR A TYPICAL SPRAY APPLICATION OF THE ASPHALTICLAYER. FOR AREAS WITH LESS THAN 24-INCH CLEARANCE, THE ASPHALTIC LAYER MAY BE APPLIED BY HAND.4.ALL PLUMBING, ELECTRICAL, MECHANICAL AND STRUCTURAL ITEMS THAT ARE LOCATED BENEATH OR THATPASS THROUGH THE VIMS MEMBRANE SHALL BE POSITIVELY SECURED IN THEIR PROPER POSITIONS ANDAPPROPRIATELY PROTECTED PRIOR TO APPLICATION OF THE ASPHALTIC LAYER.5.THE VIMS MEMBRANE SHALL BE INSTALLED BEFORE PLACEMENT OF REINFORCING STEEL. IF REINFORCINGSTEEL IS PRESENT AT THE TIME OF APPLICATION, ALL EXPOSED REINFORCEMENT SHALL BE MASKED BY THEFOUNDATION SUBCONTRACTOR PRIOR TO APPLICATION OF THE ASPHALTIC LAYER.6.REINFORCING STEEL, PIPING, FORMS, ETC. SHALL NOT BEAR DIRECTLY ON THE MEMBRANE OR PROTECTIVELAYER AND EQUIPMENT SHALL NOT BE DRIVEN OVER THE MEMBRANE OR ITS PROTECTIVE LAYER WITHOUTPRIOR APPROVAL FROM THE VIMS DESIGNER AND MANUFACTURER.7.STAKES USED TO SECURE THE CONCRETE FORMS SHALL NOT PENETRATE THE VIMS MEMBRANE AFTER IT HASBEEN INSTALLED. IF STAKES NEED TO PUNCTURE THE MEMBRANE AFTER IT HAS BEEN INSTALLED, THE VIMSDESIGNER AND INSTALLER SHOULD BE NOTIFIED, AND NECESSARY REPAIRS NEED TO BE MADE BY THE VIMSSUBCONTRACTOR.8.FIELD SITUATIONS NOT SPECIALLY DETAILED SHALL BE HANDLED PER THE INTENT OF THESE PLANS ANDSPECIFICATIONS WITH THE APPROVAL OF THE VIMS DESIGNER. THE APPLICATOR / CONTRACTOR MAY SUBMITSHOP DRAWINGS FOR ALTERNATIVE METHODS. SEE STRUCTURAL FOUNDATION PLANS FOR COMPLETEDEPTHS AND DETAILS OF FOOTING. DEPTHS OF FOOTINGS SHOWN IN THESE PLANS ARE GENERALIZED,ACTUAL FOOTING DEPTHS MAY VARY.9.APPROPRIATE CARE SHALL BE EXERCISED TO PROTECT THE VIMS MEMBRANE AND PREVENT PENETRATIONSSUBSEQUENT TO ITS APPLICATION. THE VIMS MEMBRANE SHALL BE PROTECTED FROM PEDESTRIAN TRAFFICWITH THE PROTECTIVE HDPE/GEOTEXTILE LAYER. THE PROTECTIVE HDPE/GEOTEXTILE SHALL BE KEPT FREEOF DIRT AND DEBRIS, TO THE EXTENT POSSIBLE, UNTIL THE FLOOR SLAB IS POURED. IT SHALL BE THERESPONSIBILITY OF THE GENERAL CONTRACTOR TO ENSURE THAT THE VIMS MEMBRANE AND THEPROTECTION SYSTEM ARE NOT PENETRATED AFTER THE COMPLETION OF THE INSTALLATION.G.INSTALLATIONG.1VAPOR COLLECTION PIPING INSTALLATION1.VAPOR COLLECTION PIPING SHALL BE CONNECTED TO PROVIDE A GAS-TIGHT SEAL AT ALL CONNECTIONS ANDFITTINGS AND SHALL BE CONSTRUCTED OF MATERIALS THAT COMPLY WITH THE UNIFORM PLUMBING ANDMECHANICAL CODES. ALL JOINTS SHALL BE TIGHTLY SEALED WITH APPROVED MATERIALS. ANY GLUE ORSOLVENT USED TO SEAL THE PIPING MUST BE VOC FREE.2.PLACEMENT OF AGGREGATE ABOVE THE PIPING SHALL NOT BEGIN BEFORE THE VIMS DESIGNER HASINSPECTED THE GRADE AND ALIGNMENT OF THE PIPING, THE BEDDING OF THE PIPING AND THE JOINTSBETWEEN THE PIPING. ALL PIPING LOCATED WITHIN THE AGGREGATE LAYER SHALL BE PROTECTED FROMPHYSICAL DAMAGE.3.CONVEYANCE PIPING GREATER THAN 10 FEET IN LENGTH SHALL HAVE 1/4-INCH DIAMETER WEEP HOLESDRILLED ON THE BOTTOM OF THE PIPE APPROXIMATELY EVERY 5 FEET.4.DRILL A 1/4-INCH DIAMETER WEEP HOLE ON THE BOTTOM OF PIPE FOR EVERY FOOT OF PIPING BENEATHGRADE BEAMS AND THICKENED SLABS.5.SOLID RISER PIPE SHALL BE LOCATED WITHIN THE WALLS/CHASES OR SHALL BE SIMILARLY PROTECTED FROMPHYSICAL DAMAGE. DAMAGE INCURRED DURING CONSTRUCTION OR OCCUPANCY COULD AFFECT SYSTEMPERFORMANCE.G.2VIMS MEMBRANE AND PROTECTIVE LAYER INSTALLATIONS1.THE SUBGRADE SHALL BE MOISTURE CONDITIONED AND COMPACTED BY THE GRADING CONTRACTOR ASSPECIFIED IN THE PROJECT PLANS AND SPECIFICATIONS. THE FINISHED SURFACE SHALL BE SMOOTH,UNIFORM, AND FREE OF DEBRIS AND STANDING WATER. FINAL SUBGRADE INSPECTION/PREPARATION SHALLNOT PRECEDE THE VIMS INSTALLATION BY MORE THAN 72 HOURS.2.THE AGGREGATE LAYER SHALL BE MOISTURE CONDITIONED AND COMPACTED AS SPECIFIED IN THE PROJECTPLANS AND SPECIFICATIONS.3.IF THE VIMS MEMBRANE IS TO BE PLACED ON A CONCRETE SURFACE, CONCRETE SURFACES SHALL BE LIGHTBROOM FINISHED OR SMOOTHED, FREE OF ANY DIRT, DEBRIS, LOOSE MATERIAL, RELEASE AGENTS OR CURINGCOMPOUNDS. ALL VOIDS MORE THAN 1/4-INCH IN WIDTH SHALL BE PROPERLY FILLED WITH NON-SHRINKGROUT OR AS SPECIFIED IN THE PROJECT PLANS AND SPECIFICATIONS. MASONRY JOINTS SHALL BE STRUCKSMOOTH WITH A METAL TROWEL. ALL PENETRATIONS SHALL BE PREPARED IN ACCORDANCE WITH THEMANUFACTURERS SPECIFICATIONS.4.ALL VIMS MEMBRANE PENETRATIONS SHALL BE PREPARED IN ACCORDANCE WITH MANUFACTURER'SSPECIFICATIONS. ANY FORM STAKES THAT PENETRATE THE VIMS MEMBRANE SHALL BE RE-BAR WHICH SHALLBE BENT OVER AND LEFT IN THE SLAB, OR CUT OFF BELOW THE TOP OF THE SLAB. HOLLOW CONDUIT STAKESNOT BE USED.5.TRENCHES SHALL BE CUT OVERSIZE AS NECESSARY TO ACCOMMODATE INSTALLATION OF THE VIMSMEMBRANE.6.THE WALLS OF FOOTING OR UTILITY TRENCHES SHALL BE SMOOTH AND FREE OF ROOTS OR PROTRUDINGROCKS.7.IF ORGANIC MATERIALS WITH POTENTIAL FOR GROWTH (E.G. SEEDS OR GRASSES) ARE PRESENT WITHIN THESUBGRADE, THE GENERAL CONTRACTOR SHALL APPLY A SOIL STERILANT AT THE MANUFACTURER'SRECOMMENDED RATE PRIOR TO THE INSTALLATION OF THE VIMS MEMBRANE.8.THE BASE LAYER SHALL FIRST BE LAID ON THE AGGREGATE LAYER IN ACCORDANCE WITH THE MATERIALMANUFACTURER'S SPECIFICATIONS. ALL SEAMS SHALL BE OVERLAPPED A MINIMUM OF 6 INCHES. ANY OPENUTILITY OR OTHER TRENCH PRESENT AT THE TIME OF APPLICATION SHALL BE LINED WITH PROTECTIVE BASELAYER EXTENDING AT LEAST 6 INCHES ONTO THE ADJOINING SUBGRADE. THE BASE LAYER SHALL BE ININTEGRAL CONTACT WITH ALL INTERIOR FOUNDATION CORNERS. ASPHALTIC MEMBRANE SHALL BE SPRAYAPPLIED AT ALL OVERLAPPED SEAMS TO A THICKNESS OF 30-MILS MINIMUM.9.INSTALL THE PROTECTIVE BOND LAYER OVER THE NOMINALLY CURED ASPHALTIC LAYER NO LATER THANRECOMMENDED BY MANUFACTURER AND BEFORE STARTING SUBSEQUENT CONSTRUCTION OPERATIONS.VISUAL INSPECTION AND SMOKE TESTING MUST BE PERFORMED PRIOR TO PLACING THE PROTECTIVE LAYEROVER THE ASPHALTIC LAYER.G.3 SEALING PENETRATIONS1.ALL PENETRATIONS SHALL BE CLEANED AND PREPARED TO PROVIDE PROPER ADHESION OF THE ASPHALTICLAYER FOR A VAPOR TIGHT SEAL. METAL PENETRATIONS SHALL BE SANDED CLEAN AND PREPARED USINGEMERY CLOTH FOR PROPER ADHESION OF THE ASPHALTIC LAYER.2.ALL PENETRATIONS SHOULD BE SECURED PRIOR TO INSTALLATION OF THE VIMS MEMBRANE SYSTEM.PENETRATIONS SHALL NOT BE IN CONTACT WITH ADJACENT PENETRATIONS OR OTHER OBJECTS TO ALLOWPROPER SEALING AROUND THE ENTIRE PENETRATION CIRCUMFERENCE. WHERE PENETRATIONS SUCH ASELECTRICAL CONDUITS, PLUMBING PIPING, ETC ARE CONCENTRATED, A CONCRETE PENETRATION BANK WILLBE CONSTRUCTED PRIOR TO VIMS MEMBRANE PLACEMENT. THE CONCRETE PENETRATION BANK WILLCONSIST OF A MINIMUM THICKNESS OF 12 INCHES OF CONCRETE, EXTENDING A MINIMUM OF 8 INCHES BEYONDTHE EDGE OF EACH PENETRATION TO ALLOW FOR ATTACHMENT OF THE VIMS MEMBRANE (SEE DETAIL 04,SHEET VIMS-5).3.THE BASE LAYER SHALL BE CUT AROUND PENETRATIONS SO THAT IT LAYS FLAT ON THE SUBGRADE. THERESHOULD NOT BE A GAP LARGER THAN 1/8-INCH BETWEEN THE BASE LAYER AND THE PENETRATION (SEE DETAIL03, SHEET VIMS-5).4.APPLY ONE COAT OF ASPHALTIC MEMBRANE TROWEL GRADE OR ASPHALTIC MEMBRANE SPRAY TO THE BASEHDPE/GEOTEXTILE LAYER AND AROUND THE PENETRATIONS AT A THICKNESS OF 40-MILS. PENETRATIONSSHOULD BE TREATED IN A 6-INCH RADIUS AROUND THE PENETRATION AND 3 INCHES ONTO THE PENETRATIONOBJECT.5.BASE HDPE/GEOTEXTILE LAYER BOND MATERIAL OR REINFORCEMENT FABRIC SHALL BE USED AS ANEMBEDDED HDPE/GEOTEXTILE LAYER COLLAR PLACED AFTER THE FIRST APPLICATION OF THE ASPHALTICMEMBRANE SPRAY OR ASPHALTIC MEMBRANE TROWEL GRADE. THEN SPRAY A SECOND 30-MIL COAT OVER THEEMBEDDED REINFORCING LAYER ENSURING THE COMPLETE SATURATION OF THE EMBEDDED LAYER ANDTIGHT SEAL AROUND THE PENETRATION.6.THE PENETRATION SHALL BE WRAPPED WITH A POLYPROPYLENE CABLE TIE AT A POINT 2 INCHES ABOVE THEBASE OF THE PENETRATION. THE CABLE TIE SHALL BE TIGHTENED FIRMLY SO AS TO SQUEEZE THE CUREDMEMBRANE COLLAR, BUT NOT TOO TIGHT TO SLICE INTO THE FINISHED SEAL. (SEE DETAIL 03, SHEET VIMS-5).THE CABLE TIE MAY BE INSTALLED IMMEDIATELY AFTER THE HDPE/GEOTEXTILE LAYER COLLAR HAS BEENINSTALLED.H.INSPECTIONS1.THE INSPECTION OF ALL VAPOR CONTROL MEASURES SHALL BE PERFORMED BY THE VIMS DESIGNER. AT AMINIMUM, INSPECTION SHALL TAKE PLACE AT THE FOLLOWING STAGES OF THE INSTALLATION, AS DEEMEDNECESSARY BY THE VIMS DESIGNER:nAFTER THE INSTALLATION OF THE LOW PROFILE VAPOR COLLECTION PIPING AND PRIOR TOINSTALLATION OF THE AGGREGATE LAYER ABOVE THE VAPOR COLLECTION PIPING;nPERIODICALLY DURING THE INSTALLATION OF THE BASE LAYER;nDURING THE SPRAY APPLICATION OF THE ASPHALTIC LAYER;nDURING SMOKE TESTING;nAFTER THE INSTALLATION OF THE PROTECTIVE HDPE/GEOTEXTILE LAYER, REINFORCING STEEL, ANDALL FOUNDATION FORM WORK, BUT PRIOR TO AND THROUGHOUT THE PLACEMENT OF CONCRETE FORTHE FLOOR SLAB;nDURING AND AT THE COMPLETION OF THE VERTICAL VENT RISER PIPING AND ROOF VENT INSTALLATION.2.FINAL SUBGRADE INSPECTION / PREPARATION SHALL NOT PRECEDE THE VIMS INSTALLATION BY MORE THAN 72HOURS.3.FIELD QUALITY CONTROL IS A VERY IMPORTANT PART OF ALL APPLICATIONS. THE VIMS SUBCONTRACTORSHALL CHECK HIS OWN WORK FOR COVERAGE, THICKNESS, AND ALL-AROUND GOOD WORKMANSHIP.4.COUPON SAMPLES SHALL BE CUT FROM THE VIMS MEMBRANE IN 2 SQUARE INCHES TO REPRESENT A MAXIMUMAREA OF PER 500 SQUARE FEET OF APPLICATION AND PROVIDED TO THE VIMS INSPECTOR. THE THICKNESS OFTHE COMPOSITE LAYER SHALL BE MEASURED WITH A DIGITAL CALIPER HAVING A RESOLUTION OF 1-MIL ORBETTER. THE THICKNESS OF THE BASE HDPE/GEOTEXTILE SHALL BE DEDUCTED FROM THE COMPOSITETHICKNESS IN ORDER TO DETERMINE THE THICKNESS OF THE ASPHALTIC LAYER. WHEN WARRANTED, THETEST AREA SHALL BE MARKED BY THE VIMS DESIGNER FOR REPAIR.5.VOIDS LEFT BY SAMPLING SHALL BE PATCHED BY THE VIMS SUBCONTRACTOR BY OVERLAPPING THE VOID BY AMINIMUM OF 6 INCHES. A THIN TACK COAT OF ASPHALTIC EMULSION SHALL BE APPLIED TO ADHERE TO THEHDPE/GEOTEXTILE BASE PATCH. SPRAY OR TROWEL APPLIED ASPHALTIC EMULSION SHALL THEN BE APPLIEDTO A 100-MIL MINIMUM DRY THICKNESS, EXTENDING AT LEAST 3 INCHES BEYOND THE HDPE/GEOTEXTILEPATCH.6.ON CONCRETE SURFACES, THE VIMS MEMBRANE SHALL BE CHECKED FOR COVERAGE WITH A LIGHTLY OILED,NEEDLE NOSE DEPTH GAUGE. THE MINIMUM READING SHALL BE RECORDED AND THE TEST AREA SHALL BEMARKED FOR REPAIR BY THE VIMS DESIGNER.7.CONCRETE TEST AREAS SHALL BE PATCHED WITH ASPHALTIC MEMBRANE TO A 100-MIL MINIMUM DRYTHICKNESS, EXTENDING A MINIMUM OF 1-INCH BEYOND THE TEST PERIMETER.8.EACH COMPLETED AREA OF VIMS MEMBRANE SHALL BE SMOKE TESTED AT THE COMPLETION OF THEINSTALLATION IN ACCORDANCE WITH MANUFACTURER'S PROTOCOL TO CONFIRM THE INTEGRITY OF THE VIMSMEMBRANE. ONE SMOKE TEST SHALL BE CONDUCTED FOR A MAXIMUM OF EVERY 2,500 SQUARE FOOT AREA.ANY LEAKS WHICH ARE IDENTIFIED SHALL BE REPAIRED AND RE-TESTED UNTIL ALL LEAKS/PERFORATIONS AREELIMINATED.9.PRIOR TO PLACING THE CONCRETE SLAB OVER THE VIMS MEMBRANE, THE VIMS SUBCONTRACTOR SHALLCERTIFY IN WRITING THAT THE VIMS MEMBRANE HAS BEEN INSTALLED AND TESTED IN ACCORDANCE WITH THEMANUFACTURER'S SPECIFICATIONS AND IS FREE OF LEAKS, AND HAS A MINIMUM THICKNESS OF 30-MILS.10.SERVICE LISTED IN THIS SPECIFICATION AS BEING REQUIRED BY THE VIMS DESIGNER ARE DEPENDENT UPONOWNER AUTHORIZATION OF SAID SERVICES TO VIMS DESIGNER, AND NOTIFICATIONS TO THE VIMS DESIGNEROF THE PROJECT STATUS BY THE VIMS SUBCONTRACTOR. IF THESE SERVICES ARE NOT PERFORMED BY THEVIMS DESIGNER, THE MANUFACTURER'S WARRANTY MAY BE VOIDED.RECOMMENDED VAPOR INTRUSION MITIGATION SYSTEM TASKS SUMMARYI.REPAIRS1.TERRACON UNDERSTAND THAT TENANT IMPROVEMENTS MAY BE REQUIRED IN THE COMMERCIAL SPACESDURING TENANT BUILD OUT.2.IF TENANT IMPROVEMENTS REQUIRE CUTTING THROUGH SLAB AND MEMBRANE, THE VIMS DESIGNER SHALL BENOTIFIED.3.REPAIRS OF THE VIMS BARRIER SHALL BE CONDUCTED BY A MANUFACTURER CERTIFIED INSTALLER. AGENERAL REPAIR DETAIL IS SHOWN IN DETAIL 12, VIMS-5.4.TERRACON SHALL BE NOTIFIED TO PROVIDE CONSTRUCTION OBSERVATION SERVICES TO DOCUMENT THEREPAIR OF THE VIMS MEMBRANE.STANDARD OF CARE AND LIMITATIONSTERRACON'S SERVICES WILL BE PERFORMED IN A MANNER CONSISTENT WITH GENERALLY ACCEPTED PRACTICES OFTHE PROFESSION UNDERTAKEN IN SIMILAR DESIGNS IN THE SAME GEOGRAPHICAL AREA DURING THE SAME TIMEPERIOD. PLEASE NOTE THAT TERRACON DOES NOT WARRANT THE WORK OF THIRD PARTIES SUPPLYINGINFORMATION USED IN THE PREPARATION OF THE VAPOR INTRUSION MITIGATION SYSTEM. THESE SERVICES WEREPERFORMED IN ACCORDANCE WITH THE SCOPE OF WORK AGREED WITH YOU, OUR CLIENT, AS REFLECTED IN OURPROPOSAL.I.REPAIRS1.TERRACON UNDERSTAND THAT TENANT IMPROVEMENTS MAY BE REQUIRED IN THE COMMERCIAL SPACESDURING TENANT BUILD OUT.2.IF TENANT IMPROVEMENTS REQUIRE CUTTING THROUGH SLAB AND MEMBRANE, THE VIMS DESIGNER SHALL BENOTIFIED.3.REPAIRS OF THE VIMS BARRIER SHALL BE CONDUCTED BY A MANUFACTURER CERTIFIED INSTALLER. AGENERAL REPAIR DETAIL IS SHOWN IN DETAIL 09, SHEET VIMS-5.4.TERRACON SHALL BE NOTIFIED TO PROVIDE CONSTRUCTION OBSERVATION SERVICES TO DOCUMENT THEREPAIR OF THE VIMS MEMBRANE.STANDARD OF CARE AND LIMITATIONSTERRACON'S SERVICES WILL BE PERFORMED IN A MANNER CONSISTENT WITH GENERALLY ACCEPTED PRACTICES OFTHE PROFESSION UNDERTAKEN IN SIMILAR DESIGNS IN THE SAME GEOGRAPHICAL AREA DURING THE SAME TIMEPERIOD. PLEASE NOTE THAT TERRACON DOES NOT WARRANT THE WORK OF THIRD PARTIES SUPPLYINGINFORMATION USED IN THE PREPARATION OF THE VAPOR INTRUSION MITIGATION SYSTEM. THESE SERVICES WEREPERFORMED IN ACCORDANCE WITH THE SCOPE OF WORK AGREED WITH YOU, OUR CLIENT, AS REFLECTED IN OURPROPOSAL.© 2020 CLINE DESIGN ASSOCIATES, PA EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT AND OTHER PROPERTY RIGHTS IN THESE PLANS. THESE PLANS ARE NOT TO BE REPRODUCED, CHANGED OR COPIED IN ANY FORM OR MANNER WHATSOEVER, NOR ARE THEY TO BE ASSIGNED TO ANY THIRD PARTY WITHOUT FIRST OBTAINING THE EXPRESSED WRITTEN PERMISSION AND CONSENT OF CLINE DESIGN ASSOCIATES, PA.DRAWN BY:CHECKED BY:DATEREVISIONS:DATE:PROJECT:2923 S. Tryon St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comNOT FORCONSTRUCTIONSAC, MBH71197854PTK04.07.2021ALLIANCE REALTY PARTNERS, LLC
BROADSTONE OPTIMIST PARK
2000 N. BREVARD ST., CHARLOTTE, NC ConsXOting Engineers and Scientists2701 LONG MEADOW ROADCHARLOTTE, NC 28208FAX. [phone]PH. [phone]TITLE SHEET ANDGENERAL NOTESVIMS-1
DNDNDNDNDNUPLEASINGSEE ID DWGSTENANT1,090 SFGARAGE ENTRYUNIT A2UNIT S1UNIT B3UNIT A5ENTRY6.5 LEVEL PARKING DECK396 SPACES | 53 SHAREDUNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT TH B2UNIT TH B2UNIT TH B2UNIT TH A1UNIT TH A1UNIT A3UNIT A3STAIR 400ELEV 3ELEV 2ELEV 1STAIR 100UNIT TH B1UNIT TH B1UNIT TH B1UNIT TH B1ELECMEPMECHELEC / DATATRASHSTAIR 300BACKFLOWPOOLSTORSTAIR 200LOBBYLOBBYCHEMMEPMEPCOWORKINGSEE ID DWGSCLUB / FITNESSSEE ID DWGSSTOR.TRASH BOHSTAIR 500UNIT A1UNIT A1UNIT A3_M1UNIT A6UNIT A1TYPE "A"UNIT A4BIKE STORLOADINGBARRIER WALL W/TURN AROUND SPACESTOR.STOR.STOR.STOR.PASS THROUGHPOOL COURTYARDSEE LAND PLANNING DWGSCOURTYARD12345678910111213141518ABCDEFGHJKLMNPQR16A.4B.6C.1C.5D.4C.9E.2E.3F.3F.7G.73.86.17.28.311.412.313.214.215.214.71716.817.317.815.4B.8C.7G.210.4E.5F.5G.6B.5D.83.1H.715.717.516.7K.6M.2N.2Q.1R.1H.815.312.810.312"12"12"12"6"16VIMS-5VP1VP3VP5VP6VP8VP10VP11VR6VR1VR2VR3VR4VR5VR7VR8VR9VR10VR11VR15VR14VR12VR13VR1601VIMS-6TYP.01VIMS-6TYP.02VIMS-601VIMS-6TYP.02VIMS-602VIMS-602VIMS-602VIMS-602VIMS-602VIMS-602VIMS-602VIMS-602VIMS-604VIMS-602VIMS-602VIMS-602VIMS-602VIMS-603VIMS-605VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.05VIMS-6TYP.06VIMS-607VIMS-6TYP.08VIMS-6TYP.08VIMS-6TYP.01VIMS-5T
Y
P
.01VIMS-5TYP.11VIMS-5TYP.11VIMS-5TYP.11VIMS-5TYP.11VIMS-5T
Y
P
.11VIMS-5TYP.12VIMS-5TYP.12VIMS-5TYP.12VIMS-5TYP.08VIMS-6TYP.13VIMS-5TYP.21VIMS-515VIMS-5TYP.14VIMS-515VIMS-5TYP.16VIMS-516VIMS-518VIMS-5TYP.18VIMS-5TYP.18VIMS-5TYP.18VIMS-5TYP.18VIMS-5TYP.VP4VP2VP7VP94-INCH SOLID SCH 40 PVC CONVEYANCE PIPELEGEND12" LOW PROFILE VAPOR COLLECTION PIPE VENT RISER TO ROOF LOCATIONEXTENT OF VAPOR INTRUSION MITIGATION SYSTEM MEMBRANEVR13-INCH SOLID SCH 40 PVC TRANSITION PIPEPROPOSED SUB-SLAB MONITORING POINT (SEE DETAIL 18, SHEET VIMS-6)VP101VIMS MEMBRANE AND VAPOR COLLECTION VENT PIPE LAYOUTSCALE: 1/16" = 1'-0"SCALE IN FEET0164168© 2020 CLINE DESIGN ASSOCIATES, PA EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT AND OTHER PROPERTY RIGHTS IN THESE PLANS. THESE PLANS ARE NOT TO BE REPRODUCED, CHANGED OR COPIED IN ANY FORM OR MANNER WHATSOEVER, NOR ARE THEY TO BE ASSIGNED TO ANY THIRD PARTY WITHOUT FIRST OBTAINING THE EXPRESSED WRITTEN PERMISSION AND CONSENT OF CLINE DESIGN ASSOCIATES, PA.DRAWN BY:CHECKED BY:DATEREVISIONS:DATE:PROJECT:2923 S. Tryon St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comNOT FORCO
N
S
T
R
U
C
T
IO
NSAC, MBH71197854PTK04.07.2021ALLIANCE REALTY PARTNERS, LLC
BROADSTONE OPTIMIST PARK
2000 N. BREVARD ST., CHARLOTTE, NC CRQVXOWLQJ EQJLQHHUV DQG SFLHQWLVWV2701 LONG MEADOW ROADCHARLOTTE, NC 28208FAX. [phone]PH. [phone]VAPOR INTRUSIONMITIGATION SYSTEMPLAN - FIRST FLOORVIMS-2
UNIT A1UPUPUNIT B2UNIT S1UNIT B3UNIT B3UNIT B3UNIT S1UNIT S1UNIT B6UNIT B3_M1UNIT B4UNIT S1UNIT S1UNIT S1UNIT S1UNIT S2UNIT S2UNIT S2UNIT S2UNIT S2UP 6.65%
UP 5.39%UNIT S1UNIT B5UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A1UNIT A3UNIT B1STAIR 400ELEV 3STAIR 200ELEV 2ELEV 1STAIR 100UNIT A1MEPMECHELEC / DATAMEPELEC / DATAMECHMEPTRASHSTAIR 300UNIT A1UNIT A1UNIT A3LOBBYLOBBYLOBBYOPEN TO BELOWUNIT A4UNIT A4UNIT A6UP 7.49%UNIT A1TYPE "A"UNIT A1TYPE "A"VR6VR1VR2VR3VR4VR5VR7VR8VR9VR10VR11VR15VR14VR12VR13VR16LEGENDVENT RISER FROM SUBSLAB LOCATIONVR1VENT RISER TRANSITION BETWEEN FLOORS01VENT RISER TRANSITION BETWEEN FIRST AND SECOND FLOORSSCALE: 1/16" = 1'-0"SCALE IN FEET0164168© 2020 CLINE DESIGN ASSOCIATES, PA EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT AND OTHER PROPERTY RIGHTS IN THESE PLANS. THESE PLANS ARE NOT TO BE REPRODUCED, CHANGED OR COPIED IN ANY FORM OR MANNER WHATSOEVER, NOR ARE THEY TO BE ASSIGNED TO ANY THIRD PARTY WITHOUT FIRST OBTAINING THE EXPRESSED WRITTEN PERMISSION AND CONSENT OF CLINE DESIGN ASSOCIATES, PA.DRAWN BY:CHECKED BY:DATEREVISIONS:DATE:PROJECT:2923 S. Tryon St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comNOT FORCO
N
S
T
R
U
C
T
IO
NSAC, MBH71197854PTK04.07.2021ALLIANCE REALTY PARTNERS, LLC
BROADSTONE OPTIMIST PARK
2000 N. BREVARD ST., CHARLOTTE, NC CRQVXOWLQJ EQJLQHHUV DQG SFLHQWLVWV2701 LONG MEADOW ROADCHARLOTTE, NC 28208FAX. [phone]PH. [phone]VAPOR INTRUSIONMITIGATION SYSTEMPLAN - SECOND FLOORVIMS-3
LEGENDVENT RISER FROM SUBSLAB LOCATIONVR1VENT RISER TRANSITION BELOW ROOF DECKTTMT
TT
M
T
O.S.O.S.O.S.O.S.O.S.O.S.O.S.
O.S.O.S.O.S.O.S.O.S.O.S.O.S.O.S.O.S.O.S.O.S.O.S.O.S.O.S.R.D.R.D.R.D.R.D.R.D.R.D.R.D.R.D.R.D.R.DRDRDR.D.R.D.R.D.R.D.R.DR.D.R.D.R.D.R.D.VENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)VENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONETRANSITION ABOVE CEILING TOEXIT ROOF (2% SLOPE MIN.)(SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONETRANSITION ABOVE CEILING TOEXIT ROOF (2% SLOPE MIN.)(SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONETRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)VENT RISER FROM SUB-SLAB15 FT. FRESH AREA INTAKEEXCLUSION ZONEVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEVR6VR1VR2VR3VR4VR5VR7VR8VR9VR10VR15VR14VR12VR13VENT RISER FROM SUB-SLABVENT RISER FROM SUB-SLABVENT RISER FROM SUB-SLABTRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)VENT RISER FROM SUB-SLABVR1115 FT. FRESH AREA INTAKEEXCLUSION ZONEROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)TRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)VR16TRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)VENT RISER FROM SUB-SLABROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)15 FT. FRESH AREA INTAKEEXCLUSION ZONEROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)ROOF PENETRATION(SEE DETAIL 13, SHEET VIMS-6)VENT RISER FROM SUB-SLAB15 FT. FRESH AREA INTAKEEXCLUSION ZONE15 FT. FRESH AREA INTAKEEXCLUSION ZONETRANSITION ABOVE CEILING TO EXIT ROOF(2% SLOPE MIN.) (SEE DETAIL 17, SHEET VIMS-6)01ROOF VENT LAYOUTSCALE: 1/16" = 1'-0"SCALE IN FEET0164168© 2020 CLINE DESIGN ASSOCIATES, PA EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT AND OTHER PROPERTY RIGHTS IN THESE PLANS. THESE PLANS ARE NOT TO BE REPRODUCED, CHANGED OR COPIED IN ANY FORM OR MANNER WHATSOEVER, NOR ARE THEY TO BE ASSIGNED TO ANY THIRD PARTY WITHOUT FIRST OBTAINING THE EXPRESSED WRITTEN PERMISSION AND CONSENT OF CLINE DESIGN ASSOCIATES, PA.DRAWN BY:CHECKED BY:DATEREVISIONS:DATE:PROJECT:2923 S. Tryon St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comNOT FORCONSTRUCTIONSAC, MBH71197854PTK04.07.2021ALLIANCE REALTY PARTNERS, LLC
BROADSTONE OPTIMIST PARK
2000 N. BREVARD ST., CHARLOTTE, NC CRQVXOWLQJ EQJLQHHUV DQG SFLHQWLVWV2701 LONG MEADOW ROADCHARLOTTE, NC 28208FAX. [phone]PH. [phone]VAPOR INTRUSIONMITIGATION SYSTEMPLAN - ROOFVIMS-5
1"CONCRETE SLABSOIL SUBGRADE4" MIN.1" AGGREGATE BELOW VAPOR COLLECTION PIPING2" AGGREGATE ABOVE VAPOR COLLECTION PIPING4" AGGREGATEVAPOR COLLECTION LOW PROFILE VAPOR COLLECTION PIPINGBASE HDPE/GEOTEXTILE LAYERASPHALTIC MEMBRANE (40-MIL)PROTECTIVE HDPE/GEOTEXTILE LAYERREFERRED TO AS"VIMS MEMBRANE"IN OTHER DETAILSPROTECTIVE HDPE/GEOTEXTILE LAYERASPHALTIC MEMBRANE (40-MIL)BASE HDPE/GEOTEXTILE LAYERCONCRETE SLAB12"x1" LOW PROFILE VAPOR COLLECTION PIPINGWRAPPED IN NON-WOVEN, NEEDLE PUNCHEDHDPE GEOMEMBRANE FILTER FABRIC4" AGGREGATE UNDER VIMS MEMBRANECOMPACTED SUBGRADE PER GEOTECHNICAL REQUIREMENTSREFERRED TO AS"VIMS MEMBRANE"IN OTHER DETAILSCABLE TIEREINFORCEMENT FABRICPROTECTIVE HDPE/GEOTEXTILE LAYERBASE HDPE/GEOTEXTILE LAYERASPHALTIC MEMBRANE (40-MIL)ASPHALTIC MEMBRANE (40-MIL)1" MIN.3" MIN.12"LENGTH AND WIDTH OF CONCRETE SHALL EXTEND A MINIMUM OF8-INCHES FROM THE OUTSIDE EDGE OF PENETRATIONSNOTE:THIS IS A GENERAL DETAIL AND APPLIES TO ANY AND ALL UTILITIES WHERE THEY ARELESS THAN 3-INCHES APART. THE SPECIFIC LOCATIONS ARE NOT SHOWN ON VIMS-2.1/8" MIN GAPPROTECTIVE HDPE/GEOTEXTILE LAYERASPHALTIC MEMBRANEBASE HDPE/GEOTEXTILE LAYERENCASE UTILITIES WITHIN 12" OFNON-SHRINK GROUT POUREDPRIOR TO PLACEMENT OF VIMSMEMBRANESPRAY APPLY OR HAND TROWEL40-MIL ASPHALTIC MEMBRANE TOVIMS MEMBRANE AND IN-BETWEEN PENETRATIONS6" MIN.VIMS MEMBRANE (SEE DETAILS 01 & 02, SHEET VIMS-5)PROTECTIVE HDPE/GEOTEXTILE LAYERBASE HDPE/GEOTEXTILE LAYERASPHALTIC MEMBRANE (40-MIL)4" AGGREGATE BELOW VIMS MEMBRANECONCRETESLABCONCRETEWALLASPHALTIC MEMBRANE (30-MIL)6"CONCRETE SLABPROTECTIVE HDPE/GEOTEXTILE LAYERBASE HDPE/GEOTEXTILE LAYERASPHALTIC MEMBRANE (30-MIL)ASPHALTIC MEMBRANE (40-MIL)4" AGGREGATE BELOW VIMS MEMBRANE6"CONCRETE FOOTINGVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANEVIMS MEMBRANE PENETRATION(SEE DETAIL 03, SHEET VIMS-5)1" BELOW DRAIN4" MIN.NOTE:FLOOR DRAIN LOCATIONS ARE NOT SHOWN ON SHEET VIMS-2. SEE PLUMBING PLANS FOR LOCATIONS.PROTECTIVE HDPE/GEOTEXTILE LAYERBASE HDPE/GEOTEXTILE LAYERASPHALTIC MEMBRANE (40-MIL)STEP THREESTEP FOURSTEP TWOSTEP ONEDAMAGED VIMS MEMBRANESAWCUT PARTIAL DEPTH/HAND CHIPTO EXPOSE MEMBRANEBASE HDPE/GEOTEXTILE LAYERPLACE CONCRETENOTES:1.EXISTING REPAIRS TO BE INSPECTED AND ASSESSED BY VIMS DESIGNER OR CERTIFIED VIMS INSTALLER.2.SAWCUT/HAND CHIP TO BE PERFORMED BY GENERAL CONTRACTOR.3.ALL DUE CARE MUST BE USED TO ENSURE HAND-CHIPPED CONCRETE OPERATION DOES NOT PENETRATE OR DAMAGEEXISTING MEMBRANE.4.MEMBRANE REPAIR TO BE PERFORMED BY A CERTIFIED VIMS INSTALLER.5.STEP 4, CONCRETE TO BE INSTALLED BY OTHERS ACCORDING TO FINISH FLOOR PROJECT SPECIFICATIONS.ASPHALTIC MEMBRANE (40-MIL)9"ASPHALTICMEMBRANE (40-MIL)PROTECTIVE HDPE/GEOTEXTILE LAYERASPHALTICMEMBRANE (30-MIL)10" TO ≤24"6" TO ≤10"3" TO ≤6"VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANETYPICAL VERTICAL MEMBRANE TERMINATION(SEE DETAIL 07, SHEET VIMS-5)TYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANETYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANETYPICAL VERTICAL MEMBRANE TERMINATION(SEE DETAIL 07, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANETYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)PROTECTIVE GEOTEXTILE LAYERASPHALTIC MEMBRANE APPLIEDDIRECTLY TO CONCRETE WALL (40-MIL.)VIMS MEMBRANE(SEE DETAILS 01 & 02,SHEET VIMS-5)4" AGGREGATE BELOWVIMS MEMBRANETYPICAL VERTICAL MEMBRANE TERMINATION(SEE DETAIL 07, SHEET VIMS-5)TYPICAL HORIZONTALMEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)PREP & INSTALL PERMANUFACTURERSSPECIFICATIONS (TYP.)(SEE DETAIL 08, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANEPREP & INSTALL PER MANUFACTURERS SPECIFICATIONS (TYP.)(SEE DETAIL 08, SHEET VIMS-5)PROVIDE 6" MINIMUM OF OVERLAP(SEE DETAIL 05, SHEET VIMS-5)TYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANETYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)PREP & INSTALL PER MANUFACTURERS SPECIFICATIONS (TYP.)(SEE DETAIL 08, SHEET VIMS-5)PROVIDE 6" MINIMUM OF OVERLAP(SEE DETAIL 05, SHEET VIMS-5)TYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)PREP & INSTALL PER MANUFACTURERS SPECIFICATIONS (TYP.)(SEE DETAIL 08, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANENOT TO SCALENOT TO SCALENOT TO SCALENOT TO SCALENOT TO SCALESUB-SLAB VENT SYSTEMVIMS MEMBRANE CONFIGURATIONVIMS MEMBRANE PENETRATIONPENETRATION BANKTYPICAL MEMBRANE TERMINATION OVERLAPNOT TO SCALENOT TO SCALENOT TO SCALE; REF: STRUCTURAL DETAIL 10, SHEET SF3.1010TYPICAL VERTICAL MEMBRANE TERMINATIONVIMS MEMBRANE AT TYPICAL CANTILEVEREDRETAINING WALLNOT TO SCALE; REF: STRUCTURAL DETAIL 2, SHEET SF3.01VIMS MEMBRANE AT TYPICAL STEP INSLAB-ON-GRADENOT TO SCALE; REF: STRUCTURAL DETAIL 9, SHEET SF3.02VIMS MEMBRANE AT TYPICAL STEEL COLUMNBEARING ON SPREAD FOOTINGTYPICAL HORIZONTAL MEMBRANETERMINATION11NOT TO SCALEVIMS MEMBRANE AT TYPICAL FLOOR DRAIN01020304050607080912NOT TO SCALEVIMS MEMBRANE REPAIR DETAIL151413© 2020 CLINE DESIGN ASSOCIATES, PA EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT AND OTHER PROPERTY RIGHTS IN THESE PLANS. THESE PLANS ARE NOT TO BE REPRODUCED, CHANGED OR COPIED IN ANY FORM OR MANNER WHATSOEVER, NOR ARE THEY TO BE ASSIGNED TO ANY THIRD PARTY WITHOUT FIRST OBTAINING THE EXPRESSED WRITTEN PERMISSION AND CONSENT OF CLINE DESIGN ASSOCIATES, PA.DRAWN BY:CHECKED BY:DATEREVISIONS:DATE:PROJECT:2923 S. Tryon St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comNOT FORCONSTRUCTIONSAC, MBH71197854PTK04.07.2021ALLIANCE REALTY PARTNERS, LLC
BROADSTONE OPTIMIST PARK
2000 N. BREVARD ST., CHARLOTTE, NC CRQVXOWLQJ EQJLQHHUV DQG SFLHQWLVWV2701 LONG MEADOW ROADCHARLOTTE, NC 28208FAX. [phone]PH. [phone]VAPOR INTRUSIONMITIGATION SYSTEMDETAILS - MEMBRANEVIMS-51617201918212223NOT TO SCALE; REF: STRUCTURAL DETAIL 7, SHEET SF3.04VIMS MEMBRANE AT TYPICAL CONCRETECOLUMN FOOTINGNOT TO SCALE; REF: STRUCTURAL DETAIL 14, SHEET SF3.04VIMS MEMBRANE AT TYPICAL CMU WALLFOOTINGNOT TO SCALETYPICAL VIMS MEMBRANE VERTICALINSTALLATIONNOT TO SCALE; REF: STRUCTURAL DETAIL 1, SHEET S4.33VIMS MEMBRANE AT GARAGE WALLNOT TO SCALE; REF: STRUCTURAL DETAIL 8, SHEET SF3.02VIMS MEMBRANE AT ELEVATOR PITNOT TO SCALE; REF: STRUCTURAL DETAIL 7, SHEET SF3.02VIMS MEMBRANE AT ELEVATOR SUMP PITNOT TO SCALE; REF: STRUCTURAL DETAILS 1, 2, & 5, SHEET SF3.03VIMS MEMBRANE AT TYP. TURNDOWN SLABNOT TO SCALE; REF: STRUCTURAL DETAIL 10, SHEET SF3.02VIMS MEMBRANE AT TYPICAL STEP INSLAB-ON-GRADE FROM 24" TO 36"NOT TO SCALE; REF: STRUCTURAL DETAIL 3, SHEET SF3.10VIMS MEMBRANE AT TYPICAL STEP INSLAB-ON-GRADE GREATER THAN 36"VIMS MEMBRANE AT TOP OF RAMPNOT TO SCALE; REF: STRUCTURAL DETAIL XX, SHEET SF3.XXVIMS MEMBRANE AT BOTTOM OF RAMPNOT TO SCALE; REF: STRUCTURAL DETAIL XX, SHEET SF3.XXFOUNDATION DETAIL NOT COMPLETEDFOUNDATION DETAIL NOT COMPLETED
4-INCH I.D. SCH. 40 PVC VENT RISERQUICK CONNECT FITTING604 STAINLESS STEEL HEXREDUCING BUSHING,MNPT x FNPT, 1/2" x 1/4"NOTES:1.TAP A 1/2-INCH THREAD FOR REDUCING FITTING. SEAL THREADS PERMANENTLY TO PIPE FORGAS APPLICATIONS WITH PIPE THREAD SEALANT.2.APPLY GAS-RATED TEFLON TAPE ON INLINE COUPLER THREADS TO ALLOW FOR REMOVAL(YELLOW-THREAD TAPE)604 STAINLESS STEEL HEXREDUCING BUSHING, MNPT xFNPT, 1/2" X 1/4"GRAINGER ITEM #: 1RRP6OR EQUIVALENTQUICK CONNECT FITTINGMC SERIES SHUT-OFF MNPTINLINE COUPLER FOR MC &PMC INSERTSGRAINGER ITEM #: 2YCW8OR EQUIVALENT20" MIN.GAS TIGHT 4" PVCSHUTOFF VALVEAURA AV-04 ROOF MOUNTED VENTILATOROR EQUIVALENT (SEE DETAIL 14, SHEET VIMS-6)RISER BRACING AT 5-FOOT INTERVALSOR AS REQUIRED BY PLUMBING CODE4-INCH I.D. SCH. 40 PVC VENT RISERFURNISH PLACARD ON EXPOSED PIPING(SEE DETAIL 16, SHEET VIMS-6)SEAL PENETRATION PERROOFING SPECIFICATIONSSHUTOFF VALVE (SEE DETAIL 12, SHEET VIMS-6)NOTE:ELECTRICAL SERVICE SHOULD BE INSTALLED ON THE ROOF TO ALLOW FOR FUTURE ACTIVATION OF THE VIMS, IF NEEDED.20" MIN.24" MIN. OR 12" ABOVEANY SURROUNDING PARAPETQUICK-CONNECT FITTING WITH REDUCING BUSHING(SEE DETAIL 12, SHEET VIMS-6)THIS NOTIFICATION IS TO BE INSTALLED INUTILITY AND MECHANICAL ROOMS AND PLACEDON THE WALLS AT EYE LEVEL AND SHALL NOTBE COVERED OVER.LOCATION OF NOTIFICATION TO BE DETERMINEDBY PROJECT CONTRACTOR, OWNER OR BUILDINGOFFICIAL.SIGN CAN BE PURCHASED AThttp://www.compliancesigns.com/terracon.shtml1'-2"10"WWW.TERR
ACO
N.COMTHIS BUILDING IS PROTECTED WITHA VAPOR INTRUSION MITIGATIONSYSTEM.ANY PROPOSED PENETRATION ORALTERATION OF FLOOR SLABREQUIRES NOTIFICATION OF THEOWNER AND INSPECTION BY AQUALIFIED VIMS MEMBRANEDESIGNER.WARNINGPLASTIC STICKER WITH ADHESIVE BACKING.LARGE LETTERS MIN 1/2" HIGHRED LETTERS ON WHITE BACKGROUND3" MIN. REQUIREDTHIS SIGN SHALL BE POSTED ON EACH VENTRISER APPROXIMATELY EVERY FIVE FEET, ANDALSO ON ANY EXPOSED RISER PIPING.4"4.5"VAPORSUB-SLAB VENT PIPEIF DAMAGEDIMMEDIATELYNOTIFYBUILDINGOWNERPLACARD CAN BE PURCHASED AThttp://www.compliancesigns.com/terracon.shtml12"1"4-INCH I.D. SCH. 40 PVC NO HUB COUPLING VENT PIPINGLOW PROFILE VAPOR COLLECTION PIPING WRAPPEDIN NON-WOVEN, NEEDLE PUNCHED FILTER FABRICLOW PROFILE END OUTLET WITH4-INCH OUTLET CONNECTION4-INCH DIA. COUPLING4-INCH SCH. 40 PVC PIPING4-INCH SCH. 40 PVC ELBOWTO ROOF VENTING1/4-INCH BUSHING AND QUICK-CONNECT FITTINGVIMS MEMBRANE PENETRATION(SEE DETAIL 03, SHEET VIMS-5)4-INCH I.D. SCH. 40 PVC VENT RISER4-INCH I.D. SCH. 40 PVC 90° ELBOWFURNISH PLACARD ON VENT RISER APPROXIMATELYEVERY 5 FEET AND ON ANY EXPOSED PIPING(SEE DETAIL 16, SHEET VIMS-6)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4-INCH SCH. 40 PVC CONVEYANCE PIPEVIMS MEMBRANE PENETRATION(SEE DETAIL 03, SHEET VIMS-5)4-INCH I.D. SCH. 40 PVC VENT RISERFURNISH PLACARD ON VENT RISER APPROXIMATELY EVERY 5 FEETAND ON ANY EXPOSED PIPING (SEE DETAIL 16, SHEET VIMS-6)4-INCH I.D. SCH. 40 PVC TEEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)2" AGGREGATE BELOW VIMS MEMBRANELOW PROFILE VAPOR COLLECTION PIPE1" AGGREGATE BELOW VAPOR COLLECTION PIPELOW PROFILE OUTLET WITH 4" CONNECTION4-INCH I.D. SCH. 40 PVC CONVEYANCE PIPELOW PROFILE OUTLET WITH 4" CONNECTION4-INCH I.D. SCH. 40 PVC CONVEYANCE PIPELOW PROFILE VAPOR COLLECTION PIPELOW PROFILE OUTLET WITH 4" CONNECTION4-INCH I.D. SCH. 40 PVC CONVEYANCE PIPEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)2" AGGREGATE BELOW VIMS MEMBRANELOW PROFILE VAPOR COLLECTION PIPE1" AGGREGATE BELOW VENT PIPING4-INCH I.D. SCH. 40 PVC TEECONCRETE SLAB4" AGGREGATE4-INCH CONVEYANCE PIPEBASE HDPE/GEOTEXTILE LAYERSPRAY-APPLIED EMULSION LAYER (40-MIL)PROTECTIVE HDPE/GEOTEXTILE LAYERREFERRED TO AS"VIMS MEMBRANE"IN OTHER DETAILS4" MIN.ROOF PENETRATION TO VENTILATOR(SEE DETAIL 13, SHEET VIMS-6)ROOF DECK4-INCH SCH. 40 PVC PIPE4-INCH SCH. 40 PVC 90° ELBOW4-INCH SCH. 40 PVC PIPE (2% POSITIVESLOPE MIN. TO ALLOW UPWARD AIR FLOW)VENT RISERFROM SUB-SLAB4-INCH SCH. 40 PVC 90° ELBOWGAS TIGHT 4-INCH PVCSHUTOFF VALVEFURNISH PLACARD ON VENT RISER APPROXIMATELY EVERY 5 FEETAND ON ANY EXPOSED PIPE (SEE DETAIL 16, SHEET VIMS-6)4-INCH I.D. SCH. 40 PVC VENT RISERVIMS MEMBRANE PENETRATION(SEE DETAIL 3, SHEET VIMS-5)FURNISH PLACARD ON VENT RISER APPROXIMATELYEVERY 5 FEET AND ON ANY EXPOSED PIPING(SEE DETAIL 16, SHEET VIMS-6)4-INCH I.D. SCH. 40 PVC 90° ELBOWVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4-INCH SCH. 40 PVC CONVEYANCE PIPEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4" AGGREGATE BELOW VIMS MEMBRANE3-INCH I.D. SCH. 40 PVC TRANSITION PIPEVIMS MEMBRANE PENETRATION(SEE DETAIL 03, SHEET VIMS-5)TYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)2" AGGREGATE BELOW VIMS MEMBRANELOW PROFILE VAPOR COLLECTION PIPE1" AGGREGATE BELOW VAPOR COLLECTION PIPELOW PROFILE OUTLET WITH 3" CONNECTION3-INCH I.D. SCH. 40 PVC TRANSITION PIPETYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)VIMS MEMBRANE PENETRATION(SEE DETAIL 03, SHEET VIMS-5)VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)2" AGGREGATE BELOW VIMS MEMBRANELOW PROFILE VAPOR COLLECTION PIPE1" AGGREGATE BELOW VAPOR COLLECTION PIPELOW PROFILE OUTLET WITH 3" CONNECTION4-INCH I.D. SCH. 40 PVC TRANSITION PIPETYPICAL HORIZONTAL MEMBRANE TERMINATION(SEE DETAIL 06, SHEET VIMS-5)VIMS MEMBRANE PENETRATION(SEE DETAIL 03, SHEET VIMS-5)VIMS MEMBRANE PENETRATION(SEE DETAIL 03, SHEET VIMS-5)4-INCH SCH. 40 PVC 60° ELBOWVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4-INCH I.D. SCH. 40 PVC CONVEYANCE PIPE10" TO ≤24"6" TO ≤10"3" TO ≤6"VIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4-INCH I.D. SCH. 40 PVC CONVEYANCE PIPEVIMS MEMBRANE(SEE DETAILS 01 & 02, SHEET VIMS-5)4-INCH I.D. SCH. 40 PVC CONVEYANCE PIPE4-INCH SCH. 40 PVC 45° ELBOW4-INCH SCH. 40 PVC 30° ELBOWNOT TO SCALENOT TO SCALETYPICAL VENT RISER AT INTERIOR WALLLOW PROFILE VAPOR COLLECTION PIPETRANSITION TO CONVEYANCE PIPECONVEYANCE PIPEVENT PIPING SAMPLE PORTNOT TO SCALENOT TO SCALENOT TO SCALEROOF-MOUNTED VENTILATORVIMS MEMBRANE IDENTIFICATION SIGNNOT TO SCALEPLACARD AT VENT RISER OUTLETROOF PENETRATION DETAILNOT TO SCALENOT TO SCALE101101020304050607080912151413© 2020 CLINE DESIGN ASSOCIATES, PA EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT AND OTHER PROPERTY RIGHTS IN THESE PLANS. THESE PLANS ARE NOT TO BE REPRODUCED, CHANGED OR COPIED IN ANY FORM OR MANNER WHATSOEVER, NOR ARE THEY TO BE ASSIGNED TO ANY THIRD PARTY WITHOUT FIRST OBTAINING THE EXPRESSED WRITTEN PERMISSION AND CONSENT OF CLINE DESIGN ASSOCIATES, PA.DRAWN BY:CHECKED BY:DATEREVISIONS:DATE:PROJECT:2923 S. Tryon St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comNOT FORCONSTRUCTIONSAC, MBH71197854PTK04.07.2021ALLIANCE REALTY PARTNERS, LLC
BROADSTONE OPTIMIST PARK
2000 N. BREVARD ST., CHARLOTTE, NC CRQVXOWLQJ EQJLQHHUV DQG SFLHQWLVWV2701 LONG MEADOW ROADCHARLOTTE, NC 28208FAX. [phone]PH. [phone]VAPOR INTRUSIONMITIGATION SYSTEMDETAILS - PIPINGVIMS-6161718NOT TO SCALEVENT RISER AT INTERIOR WALL (VR6)NOT TO SCALESUB-SLAB MONITORING POINTINSTALLEDVIEWCOMPLETEDVIEW1-1/4 INCH DIAMETERHDPE SLEEVESEAL MEMBRANE TO SLEEVEFOR PENETRATION(SEE DETAIL 03, SHEET VI501)THREADED ROD,TO BE REMOVEDAFTER SLAB PLACEMENTRMS MEMBRANE4" AGGREGATE LAYER4" CONCRETE SLABSTAINLESS STEEL VAPOR PINNEOPRENE SEALAIR TIGHT PLASTIC CAPFLUSH STAINLESS STEELSECURE COVERNOT TO SCALEVENT RISER VERTICAL TO HORIZONTALTRANSITION BELOW ROOF DECKNOT TO SCALENOT TO SCALEVENT RISER AT INTERIOR WALL (VR16)NOT TO SCALENOT TO SCALENOT TO SCALE12" LOW PROFILE VENT PIPINGTRANSITION PIPE AT TYPICAL CMU WALL FOOTINGVAPOR COLLECTION PIPE TRANSITION AT TYPICALCMU WALL FOOTINGCONVEYANCE PIPE TRANSITION TO VAPORCOLLECTION PIPE AT TYPICAL CMU WALL FOOTINGCONVEYANCE PIPE AT TOP OF RAMPNOT TO SCALE; REF: STRUCTURAL DETAIL 14, SHEET SF3.04NOT TO SCALE; REF: STRUCTURAL DETAIL 14, SHEET SF3.04NOT TO SCALE; REF: STRUCTURAL DETAIL 14, SHEET SF3.04NOT TO SCALE; REF: STRUCTURAL DETAIL XX, SHEET SF3.XXCONVEYANCE PIPE AT BOTTOM OF RAMPNOT TO SCALE; REF: STRUCTURAL DETAIL XX, SHEET SF3.XXNOT TO SCALE; REF: STRUCTURAL DETAIL 2, SHEET SF3.01CONVEYANCE PIPE AT TYPICAL STEP INSLAB-ON-GRADE19FOUNDATION DETAIL NOT COMPLETEDFOUNDATION DETAIL NOT COMPLETEDNOTE:THIS IS A GENERAL DETAIL TO SHOW HOWVENT PIPING IS CONSTRUCTION.

APPENDIX B

Client:
Project:
Date:
Submitted By:
Nitra-Seal Specification V 2.1

Nitra-Seal
Vapor Intrusion Barrier System

Technology
A Multi-Layer Base with Innovative
Nitrile-Advanced Asphalt Latex Technology
Nitra-Seal is an update/improvement on current vapor
barrier systems, providing a more chemically resistant
spray-applied core material.1 Nitra-Seal is a triple-layer
system. The Nitra-Base layer (bottom) and the
Land Science Bond layer (top) are composed of a HDPE
material bonded to a geo-textile on the out-facing side.
HDPE is known for chemical resistance, high tensile
strength, excellent stress-crack resistance and highly
reliable subsurface containment. The geo-textile, which
is physically bonded to the chemical resistant layer,
accomplishes two goals; it allows the Land Science Bond
layer to adhere to the slab, and provides friction course
between the Nitra-Base layer and the soil. The
Nitra-Core layer is composed of a unique, nitrile-
advanced asphalt latex which also provides additional
protection against vapor transmission. Nitrile has been
proven to offer exceptional chemical resistance in a wide
range of applications. This layer creates a highly-effective
seal around slab penetrations and eliminates the need for
mechanical fastening at termination points.
1. U.S. and international patents pending.
Nitrile-Advanced Asphalt Latex Compared to Generic SBR Asphalt Latex
Generic SBR Asphalt Latex
Higher permeability increases risk of contaminant sorption
Longer, slower application time
Equipment requires petroleum-based solvents to clean
Nitrile-Advanced Asphalt Latex
Lab-proven to provide 10x higher chemical resistance
Easier and faster to apply
Equipment requires only soap and water to clean
TCE diffusion rates in Nitrile-Advanced Asphalt Latex barrier
systems vs those utilizing Generic (SBR) Asphalt.
0
0 5 10 15
Time (days)Total TCE Mass Diffused (µg)20 25
200
400
600
800
1000
1200
1400
1600
1800
Nitrile-Advanced Asphalt Latex Generic (SBR) Asphalt
Nitrile-Advanced Asphalt Latex vs. Generic Asphalt LatexPerformance Comparison
About Nitra-Seal 7
Nitra-Seal Specification V 2.1

Nitra-Seal Vapor Intrusion Barrier Fluid-Applied Gas Barrier Version 2.1

Note: If membrane will be subjected to hydrostatic pressure, please contact Land Science® for proper recommendations.
PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the contract, including general and supplementary conditions and Division 1 specification sections, apply to this section.
1.2 SUMMARY A. This section includes the following: 1. Substrate preparation: 2. Vapor intrusion barrier components:
3. Seam sealer and accessories. B. Related Sections: The following sections contain requirements that relate to this section: 1. Division 2 Section “Earthwork”, “Pipe Materials”, “Sub-drainage Systems”, “Gas Collection Systems”: 2. Division 3 Section “Cast-in-Place Concrete” for concrete placement, curing, and finishing: 3. Division 5 Section “Expansion Joint Cover Assemblies”, for expansion-joint covers assemblies and installation. 1.3 PERFORMANCE REQUIREMENTS A. General: Provide a chemically resistant vapor intrusion barrier system that prevents the passage of methane gas and/or volatile organic compound vapors. Barrier system is to include a nitrile-latex spray applied membrane component demonstrating excellent sealing of sub-slab penetrations and barrier terminations while exhibiting excellent chemical resistance. Barrier system must comply with physical requirements as demonstrated by testing of manufacturer’s vapor intrusion barrier formulation and system design. 1.4 SUBMITTALS A. Submit product data for each type of vapor intrusion barrier, including manufacturer’s printed instructions for evaluating and preparing the substrate, technical data, and tested physical and performance properties. B. Project Data - Submit shop drawings showing extent of vapor intrusion barrier, including details for overlaps, flashing, penetrations, and other termination conditions.
C. Samples – Submit representative samples of the following for approval: 1. Vapor intrusion barrier components. D. Certified Installer Certificates – Submit certificates signed by manufacturer certifying that installers comply with requirements under the “Quality Assurance” article. 1.5 QUALITY ASSURANCE A. Installer Qualifications: Engage an experienced installer who has been trained and certified in writing by the membrane manufacturer, Land Science™ for the installation of the Nitra-Seal™ System.
B. Manufacturer Qualification: Obtain vapor intrusion barrier materials and system components from a single manufacturer source Land Science.
C. Field Sample: Apply vapor intrusion barrier system field sample to 100 ft2 (9.3 m2) of field area to demonstrate application, detailing, thickness, texture, and standard of workmanship. 1. Notify engineer or special inspector one week in advance of the dates and times when field sample will be prepared. 2. If engineer or special inspector determines that field sample does not meet requirements, reapply field sample until field sample is approved. 3. Retain and maintain approved field sample during construction in an undisturbed condition as a standard for judging the completed methane and vapor intrusion barrier. An undamaged field sample may become part of the completed work. D. Pre-installation Conference: A pre-installation conference shall be held prior to application of the vapor intrusion barrier system to assure proper site and installation conditions, to include contractor, applicator, architect/engineer, other trades influenced by vapor intrusion barrier installation and special inspector (if any).
Nitra-Seal Specification V 2.1

1.6 DELIVERY, STORAGE, AND HANDLING A. Deliver materials to project site as specified by manufacturer labeled with manufacturer’s name, product brand name and type, date of manufacture, shelf life, and directions for storing and mixing with other components. B. Store materials as specified by the manufacturer in a clean, dry, protected location and within the temperature range required by manufacturer. Protect stored materials from direct sunlight. If freezing temperatures are expected, necessary steps should be taken to prevent the freezing of the Nitra-Core and Nitra-Core Detail components. C. Remove and replace material that cannot be applied within its stated shelf life. 1.7 PROJECT CONDITIONS A. Protect all adjacent areas not to be installed on. Where necessary, apply masking to prevent staining of surfaces to remain exposed wherever membrane abuts to other finish surfaces.
B. Perform work only when existing and forecasted weather conditions are within manufacturer’s recommendations for the material and application method used. C. Minimum clearance of 24 inches is required for application of product. For areas with less than 24-inch clearance, the membrane may be applied by hand using Nitra-Core Detail.
D. Ambient temperature shall be within manufacturer’s specifications. (Greater than +45ºF/+7ºC.) Consult manufacturer for the proper requirements when desiring to apply Nitra-Core below 45ºF/7ºC. E. All plumbing, electrical, mechanical and structural items to be under or passing through the vapor intrusion barrier system shall be positively secured in their proper positions and appropriately protected prior to membrane application.
F. Vapor intrusion barrier shall be installed before placement of fill material and reinforcing steel. When not possible, all exposed reinforcing steel shall be masked by general contractor prior to membrane application. G. Stakes used to secure the concrete forms shall not penetrate the vapor intrusion barrier system after it has been installed. If stakes need to puncture the vapor intrusion barrier system after it has been installed, the necessary repairs need to be made by a certified Nitra-Seal applicator. To confirm the staking procedure is in agreement with the manufacture’s recommendation, contact Land Science. 1.8 WARRANTY
A. General Warranty: The special warranty specified in this article shall not deprive the owner of other rights the owner may have under other provisions of the contract documents, and shall be in addition to, and run concurrent with, other warranties made by the contractor under requirements of the contract documents. B. Special Warranty: Submit a written warranty signed by vapor intrusion barrier manufacturer agreeing to repair or replace vapor intrusion barrier that does not meet requirements or that does not remain methane gas and/or volatile organic compound vapor tight within the specified warranty period. Warranty does not include failure of vapor intrusion barrier due to failure of substrate prepared and treated according to requirements or formation of new joints and cracks in the attached to structures that exceed 1/16 inch (1.58 mm) in width. 1. Warranty Period: 1 year after date of substantial completion. Longer warranty periods are available upon request to the manufacturer. C. Labor and material warranties are available upon request to the manufacturer.
PART 2 – PRODUCTS
2.1 MANUFACTURERS A. Nitra-Seal; Land Science™ a division of REGENESIS, San Clemente, CA. [phone] 1. Nitra-Base sheet layer 2. Nitra-Core spray layer and Nitra-Core Detail 3. Land Science Bond protection layer 2.2 VAPOR INTRUSION BARRIER SPRAY MATERIALS A. Fluid applied vapor intrusion barrier system – Nitra-Core; a single course, high build, nitrile-modified asphalt emulsion. Waterborne and spray applied at ambient temperatures. A nominal thickness of 40 dry mils, unless specified otherwise. Non-toxic and odorless. Nitra-Core Detail has similar properties with greater viscosity and is trowel or brush applied. Manufactured by Land Science, a division of REGENESIS.
Nitra-Seal Specification V 2.1

B. Fluid applied vapor intrusion barrier physical properties. Nitra-Core Properties
PROPERTIES TEST METHOD NITRA-CORE Application to Nitra-Base 40 mils (23 ft2/gal)

Typical Uncured Properties
Specific Gravity ASTM D 244 1.0
Brookfield Viscosity ASTM D2196 75 – 90 centipoises
pH Oakton 10 – 13
Residue Content ASTM D2939 62 – 65%
Color Brown to Black
Demulsibility ASTM D6936 35 – 40%
Non-Toxic No Solvent
Shelf Life 6 months

Typical Cured Properties w Nitra-Base and LS Bond

PCE Diffusion Coefficient GeoKinetics Method 9.1 x 10-12 m2/day
Benzene Diffusion Coefficient GeoKinetics Method 4.9 x 10-13 m2/day

Packaging: 55 gal. drums and 275 gal.totes
2.3 VAPOR INTRUSION BARRIER SHEET MATERIALS A. The Nitra-Base layer is chemically resistant sheets comprised of a 10 mil high density polyethylene sheet thermally bonded to a 3 ounce non-woven geotextile. B. Sheet Course Usage 1. As foundation base layer, use Nitra-Base layer and/or other base sheet as required or approved by the manufacturer. Nitra-Base Properties
PROPERTIES TEST METHOD NITRA-BASE
Film Thickness 23 mil
Color Clear HDPE/White Geotextile
Weight ASTM D751 – 06 6.85 oz/yd2
Tensile Strength (grab) ASTM D751 – 06 CD – 270.5 lbf.
MD – 350.9 lbf.
Tear Strength (Trapezoidal) ASTM D751 – 06 CD – 48.3 lbf.
MD – 44.4 lbf
Puncture Resistance ASTM D4833-07 103.1 lbf.
Life Expectancy ASTM E 154-93 Indefinite
Elongation ASTM D751 – 06 CD – 26.0%
MD – 32.6%
Chemical Resistance Excellent
Packaging: 102” x 150’

C. Land Science Bond layer is a chemically resistant sheets comprised of a 5 mil high density woven polyethylene sheet thermally bonded to a 3 oz non-woven geotextile.
1. As top protective layer, use Land Science Bond layer and/or other protection as required or approved by the manufacturer.
Nitra-Seal Specification V 2.1

Land Science Bond Properties

PROPERTIES TEST METHOD LAND SCIENCE BOND
Film Thickness 18 mil
Color Gray HDPE - White Geotextile
Weight ASTM D751 – 06 6.76 oz/yd2
Tensile Strength (grab) ASTM D751 – 06 CD – 186.8 lbf.
MD – 153.4 lbf.
Tear Strength (Trapezoidal) ASTM D751 – 06 CD – 36.7 lbf.
MD – 28.0 lbf
Puncture Resistance ASTM D4833-07 61.2 lbf.
Life Expectancy ASTM E 154-93 Indefinite
Elongation ASTM D751 – 06 CD – 72.1%
MD – 49.6%
Chemical Resistance Excellent
Packaging: 102” x 150’ Roll

2.4 AUXILLARY MATERIALS A. Sheet Flashing: 60-mil reinforced modified asphalt sheet good with double-sided adhesive. B. Detail Fabric: Reinforcing Strip recommended polypropylene and polyester fabric. C. Gas Venting Materials: TerraVent, and associated fittings. D. Seam Detailing Sealant Mastic: Nitra-Core Detail, a high or medium viscosity polymer modified water-based asphalt material.
1. Back Rod: Closed-cell polyethylene foam.
PART 3 – EXECUTION
3.1 AUXILIARY MATERIALS A. Examine substrates, areas, and conditions under which vapor intrusion barrier will be applied, with installer present, for compliance with requirements. Do not proceed with installation until unsatisfactory conditions have been corrected.
3.2 SUBGRADE SURFACE PREPARATION A. Verify substrate is prepared according to manufacturer’s recommendations. On a horizontal surface, the substrate should be free from material that can potentially puncture the vapor intrusion barrier. Additional protection or cushion layers might be required if the earth or gravel substrate contains too many jagged points and edges that could puncture one or more of the system components. Contact manufacturer to confirm substrate is within manufactures recommendations. B. Nitra-Seal can accommodate a wide range of substrates, including but not limited to compacted earth, sand, aggregate, and mudslabs. 1. Compacted Earth: Remove pieces of debris, gravel and/or any other material that can potentially puncture the Nitra-Base. Remove any debris from substrate that can potentially puncture the Nitra-Base prior to application. 2. Sand: A sand subgrade that requires no additional preparation, provided any material that can potentially puncture the Nitra-Base layer is not present. 3. Aggregate: Contact the manufacturer to ensure the aggregate layer will not be detrimental to the membrane. The gravel layer must be compacted and rolled flat. Ideally a ¾” minus gravel layer with rounded edges should be specified; however the Nitra-Seal system can accommodate a wide variety of different substrates. Contact Land Science if there are questions regarding the compatibility of Nitra-Seal and the utilized substrate. Exercise caution when specifying pea gravel under the membrane, if not compacted properly, pea gravel can become an unstable substrate. 4. Mudslabs: The use of a mubslab under the Nitra-Seal system is acceptable, contact Land Science for job-specific requirements. C. Mask off adjoining surface not receiving the vapor intrusion barrier system to prevent the spillage or over spray affecting other construction.
Nitra-Seal Specification V 2.1

D. Earth, sand or gravel subgrades should be prepared and compacted to local building code requirements.
3.3 CONCRETE SURFACE PREPARATION
A. Clean and prepare concrete surface to manufacturer’s recommendations. In general, only apply the Nitra-Core material to dry, clean and uniform substrates. Concrete surfaces must be a light trowel, light broom or equivalent finish. Remove fins, ridges and other projections and fill honeycomb, aggregate pockets, grout joints and tie holes, and other voids with hydraulic
cement or rapid-set grout. It is the applicator’s responsibility to point out unacceptable substrate conditions to the general contractor and ensure the proper repairs are made. B. When applying the Nitra-Core or Nitra-Core Detail material to concrete it is important to not apply the product over standing water. Applying over standing water will result in the membrane not setting up properly on the substrate C. Surfaces may need to be wiped down or cleaned prior to application. This includes, but is not limited to, the removal of forming oils, concrete curing agents, dirt accumulation, and other debris. Contact form release agent manufacturer or concrete curing agent manufacturer for VOC content and proper methods for removing the respective agent. D. Applying the Nitra-Core to “green” concrete is acceptable and can be advantageous in creating a superior bond to the concrete surface. To help reduce blistering, apply a primer coat of only the asphalt component of the Nitra-Core system. Some blistering of the membrane will occur and may be more severe on walls exposed to direct sunlight. Blistering is normal and will subside over time. Using a needle nose depth gauge confirm that the specified mil thickness has been applied. 3.4 PREPARATIONS AND TREATMENT OF TERMINATIONS
A. Prepare the substrate surface in accordance with Section 3.3 of this document. Concrete surfaces that are not a light trowel, light broom or equivalent finish, will need to be repaired. B. Terminations on horizontal and vertical surfaces should extend 6” onto the termination surface. Job specific conditions may prevent a 6” termination. In these conditions, contact manufacturer for recommendations. C. Apply 60 mils of Nitra-Core to the terminating surface and then embed the Nitra-Base layer by pressing it firmly into the Nitra-Core layer. Next, apply 40 mils of Nitra-Core to the Nitra-Base layer. When complete, apply the Land Science Bond layer. After the placement of the Land Science Bond layer is complete, apply a final 30 mil seal of the Nitra-Core layer over the edge of the termination. For further clarification, refer to the termination detail provided by manufacturer. D. The stated termination process is appropriate for terminating the membrane onto exterior footings, pile caps, interior footings and grade beams. When terminating the membrane to stem walls or vertical surfaces the same process should be used. 3.5 PREPARATIONS AND TREATMENT OF PENETRATIONS A. All pipe penetrations should be securely in place prior to the installation of the Nitra-Seal system. Any loose penetrations should be secured prior to Nitra-Seal application, as loose penetrations could potentially exert pressure on the membrane and damage the membrane after installation. B. To properly seal around penetrations, cut a piece of the Nitra-Base layer that will extend 6” beyond the outside perimeter of the penetration. Cut a hole in the Nitra-Base layer just big enough to slide over the penetration, ensuring the Nitra-Base layer fits snug against the penetration, this can be done by cutting an “X” no larger than the inside diameter of the penetration. There should not be a gap larger than a 1/8” between the Nitra-Base layer and the penetration. Other methods can also be utilized, provided, there is not a gap larger than 1/8” between the Nitra-Base layer and the penetration. C. Seal the Nitra-Base layer using Nitra-Core or Nitra-Core Detail to the underlying Nitra-Base layer. D. Apply one coat of Nitra-Core Detail or Nitra-Core spray to the Nitra-Base layer and around the penetration at a thickness of 30 mils. Penetrations should be treated in a 6-inch radius around penetration and 3 inches onto penetrating object. E. Embed a Detail Fabric after the first application of the Nitra-Core spray or Nitra-Core Detail material and then apply a second 30 mil coat over the embedded joint reinforcing strip ensuring its complete saturation of the embedded strip and tight seal around the penetration. F. After the placement of the Land Science Bond layer, a cable tie should then be placed around the finished penetration. The cable tie should be snug, but not overly tight so as to slice into the finished seal. OPTION: A final application of Nitra-Core may be used to provide a finishing seal after the Land Science Bond layer has been installed. NOTE: Metal or other slick penetration surfaces may require treatment in order to achieve proper adhesion. For plastic pipes, sand paper may be used to achieve a profile, an emery cloth is more appropriate for metal surfaces. An emery cloth should also be used to remove any rust on metal surfaces.
3.6 NITRA-BASE LAYER INSTALLATION A. Install the Nitra-Base layer over substrate material in one direction with six-inch overlaps and the geotextile (fabric side) facing down. B. Secure the Nitra-Base seams by applying 60 mils of Nitra-Core between the 6” overlapped sheets with the geotextile
Nitra-Seal Specification V 2.1

side down. C. Visually verify there are no gaps/fish-mouths in seams.
D. For best results, install an equal amount of Nitra-Base and Nitra-Core in one day. Leaving unsprayed Nitra-Base overnight might allow excess moisture to collect on the Nitra-Base. If excess moisture collects, it needs to be removed. NOTE: In windy conditions it might be necessary to encapsulate the seam by spraying the Nitra-Core layer over the completed Nitra-Base seam. 3.7 NITRA-CORE APPLICATION A. Set up spray equipment according to manufacturer’s instructions. B. Mix and prepare materials according to manufacturer’s instructions. C. The two catalyst nozzles (8001) should be adjusted to cross at about 18" from the end of the wand. This apex of catalyst and emulsion spray should then be less than 24" but greater than 12” from the desired surface when spraying. When properly sprayed the fan pattern of the catalyst should range between 65° and 80°. D. Adjust the amount of catalyst used based on the ambient air temperature and surface temperature of the substrate receiving the membrane. In hot weather use less catalyst as hot conditions will quickly “break” the emulsion and facilitate the curing of the membrane. In cold conditions and on vertical surfaces use more catalyst to “break” the emulsion quicker to expedite curing and set up time in cold conditions. E. To spray the Nitra-Core layer, pull the trigger on the gun. A 42° fan pattern should form when properly sprayed. Apply one spray coat of Nitra-Core to obtain a seamless membrane free from pinholes or shadows, with an average dry film thickness of 40 mils (1.0 mm).
F. Apply the Nitra-Core layer in a spray pattern that is perpendicular to the application surface. The concern when spraying at an angle is that an area might be missed. Using a perpendicular spray pattern will limit voids and thin spots, and will also create a uniform and consistent membrane.

G. Verify film thickness of vapor intrusion barrier every 500 ft2. (46.45 m2), for information regarding Nitra-Seal quality control measures, refer to the quality control procedures in Section 3.9 of this specification. H. The membrane will generally cure in 24 to 48 hours. As a rule, when temperature decreases or humidity increases, the curing of the membrane will be prolonged. The membrane does not need to be fully cured prior the placement of the Land Science Bond layer, provided mil thickness has been verified and a smoke test will be conducted. I. Do not penetrate membrane after it has been installed. If membrane is penetrated after the membrane is installed, it is the responsibility of the general contractor to notify the certified installer to make repairs. J. If applying to a vertical concrete wall, apply Nitra-Core directly to concrete surface and use manufacturer’s recommended protection material based on site specific conditions. If applying Nitra-Seal against shoring, contact manufacturer for site specific installation instructions. NOTE: Care should be taken to not trap moisture between the layers of the membrane. Trapping moisture may occur from applying a second coat prior to the membrane curing. Repairs and detailing may be done over the Nitra-Core layer when not fully cured. 3.8 LAND SCIENCE BOND PROTECTION COURSE INSTALLATION A. Install Land Science Bond protection course perpendicular to the direction of the Nitra-Base course with overlapped seams over nominally cured membrane no later than recommended by manufacturer and before starting subsequent construction operations. B. Sweep off any water that has collected on the surface of the Nitra-Core layer, prior to the placement of the Land Science Bond layer. C. Overlap and seam the Land Science Bond layer in the same manner as the Nitra-Base layer. 3.9 QUALITY ASSURANCE
A. The Nitra-Seal system must be installed by a trained and certified installer approved by Land Science. B. For projects that will require a material or labor material warranty, Land Science will require a manufacturer’s representative
or certified 3rd party inspector to inspect and verify that the membrane has been installed per the manufacturer’s recommendations. The certified installer is responsible for contacting the inspector for inspection. Prior to application of the membrane, a notice period for inspection should be agreed upon between the applicator and inspector.
Nitra-Seal Specification V 2.1

C. The measurement tools listed below will help verity the thickness of the Nitra-Core layer. As measurement verification experience is gained, these tools will help confirm thickness measurements that can be obtained by pressing one’s fingers into the Nitra-Core membrane. To verify the mil thickness of the Nita-Core, the following measurement devices are required. 1. Mil reading caliper: Calipers are used to measure the thickness of coupon samples. To measure coupon samples correctly, the thickness of the Nitra-Base layers (18 mils each) must be taken into account. Mark sample area for repair. 2. Wet mil thickness gauge: A wet mil thickness gauge may be used to quickly measure the mil thickness of the Nitra-Core layer. The thickness of the Nitra-Base sheet layers do not factor into the mil thickness reading.
NOTE: When first using a wet mil thickness gauge on a project, collect coupon samples to verify the wet mil gauge thickness readings. 3. Needle nose digital depth gauge: A needle nose depth gauge should be used when measuring the Nitra-Core thickness on vertical walls or in field measurements. Mark measurement area for repair. To obtain a proper wet mil thickness reading, take into account the 20 to 30 percent shrinkage that will occur as the membrane fully cures. Not taking into account the thickness of the sheet layers, a freshly sprayed membrane should have a minimum wet thickness of 50-57 mils.
Methods on how to properly conduct Nitra-Core thickness sampling can be obtained by reviewing literature prepared by Land Science. D. It should be noted that taking too many destructive samples can be detrimental to the membrane. Areas where coupon samples have been removed need to be marked for repair. E. Smoke Testing is highly recommended and is the ideal way to test the seal created around penetrations and terminations. Smoke Testing is conducted by pumping non-toxic smoke underneath the Nitra-Seal vapor intrusion barrier and then repairing the areas where smoke appears. Refer to smoke testing protocol provided by Land Science. For projects that will require a material or labor material warranty, Land Science will require a smoke test. F. Visual inspections prior to placement of concrete, but after the installation of concrete reinforcing, is recommended to identify any punctures that may have occurred during the installation of rebar, post tension cables, etc. Punctures in the Nitra-Seal system should be easy to identify due to the color contrasting layers of the system.
02 56 19 © 2019 Land Science
Terra-Vent™ SOIL GAS COLLECTION SYSTEM Version 1.1
SECTION 02 56 19 – GAS CONTROL
PART 1 – GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes the following:
1.Substrate preparation.2.Terra-Vent™ installation.3.Terra-Vent accessories.
B. Related Sections: The following Sections contain requirements that relate to this Section:
1.Division 2 Section “Earthwork”, “Pipe Materials”, “Sub-drainage systems”, ”Gas Control System”, “Fluid-Applied gasbarrier”.2.Division 3 Section “Cast-in-Place Concrete” for concrete placement, curing, and finishing.3.Division 5 Section “Expansion Joint Cover Assemblies”, for expansion-joint covers assemblies and installation.
1.3 PERFORMANCE REQUIREMENTS
A. General: Provide a gas venting material that collects gas vapors and directs them to discharge or to collection points as specified in the gas vapor collection system drawings and complies with the physical requirements set forth by the
manufacturer.
1.4 SUBMITTALS
A. Submit Product Data for each type of gas venting system specified, including manufacturer’s specifications.
B. Sample – Submit representative samples of the following for approval:
1.Gas venting, Terra-Vent.2.Terra-Vent accessories.
1.5 QUALITY ASSURANCE
A. Installer Qualifications: Engage an experienced Installer who is certified in writing and approved by vapor intrusion barrier manufacturer Land Science for the installation of the Terra-Shield and Nitra-Seal vapor intrusion barrier system.
B. Manufacturer Qualification: Obtain gas venting, vapor intrusion barrier and system components from a single manufacturer Land Science.
C. Pre-installation Conference: A pre-installation conference shall be held prior to installation of the venting system, vapor intrusion barrier and waterproofing system to assure proper site and installation conditions, to include contractor, applicator, architect/engineer and special inspector (if any).
1.6 DELIVERY, STORAGE, AND HANDLING
A. Deliver materials to project site as specified by manufacturer labeled with manufacturer’s name, product brand name and type, date of manufacture, shelf life, and directions for handling.
02 56 19 © 2019 Land Science
B. Store materials as specified by the manufacturer in a clean, dry, protected location and within the temperature range required by manufacturer. Protect stored materials from direct sunlight.
C. Remove and replace material that is damaged.
PART 2 – PRODUCTS
2.1 MANUFACTURER
A. Land Science, San Clemente, CA. [phone]
1.Terra-Vent™
2.2 GAS VENT MATERIALS
A. Terra-Vent – Terra-Vent is a low profile, trenchless, flexible, sub slab vapor collection system used in lieu or in conjunction with perforated piping. Terra-Vent is recommended for sites with methane gas and aggressive chlorinated volatile organic or petroleum vapors. Manufactured by Land Science.
B. Terra-Vent physical properties
PROPERTIES TEST METHOD Terra Vent
Vent Core Properties Compressive Strength ASTM D-1621 9,500 psf. Thickness 1 inch
Flow Rate (Hydraulic gradient = 0.1) ASTM D-4716 30 gpm/ft width
Vent Fabric Properties Grab Tensile Strength ASTM D-4632 100 lbs. CBR Puncture ASTM D-6241 250 lbs. Flow ASTM D-4491 140 gpm/ft2
AOS ASTM D-4751 70 U.S Sieve
Permittivity ASTM D-4491 2.0 sec-1
U.V Resistance ASTM D-4355 70% @500 hrs. Packaging: Dimension: 12”x 165’
Weight: 68 lbs.
2.3 AUXILIARY MATERIALS
A. Terra-Vent End Out
B. Reinforced Tape.
PART 3 – EXECUTION
3.1 EXAMINATION
A. Examine substrates, areas, and conditions under which gas vent system will be installed, with installer present, for compliance with requirements. Do not proceed with installation until unsatisfactory conditions have been corrected.
3.2 SUBSTRATE PREPARATION
A. Verify substrate is prepared according to project requirements.
02 56 19 © 2019 Land Science
3.3 PREPARATION FOR STRIP COMPOSITE
A. Mark the layout of strip geocomposite per layout design developed by engineer.
3.4 STRIP GEOCOMPOSITE INSTALLATION
A. Install Terra-Vent over substrate material where designated on drawings with the flat base of the core placed up and shall be overlapped in accordance with manufacturer’s recommendations.
B. At areas where Terra-Vent strips intersect cut and fold back fabric to expose the dimpled core. Arrange the strips so that the top strip interconnects into the bottom strip. Unfold fabric to cover the core and use reinforcing tape, as approved by the manufacturer, to seal the connection to prevent sand or gravel from entering the core.
C. When crossing Terra-Vent over footings or grade beams, consult with the specifying environmental engineer and structural engineer for appropriate use and placement of solid pipe materials. Place solid pipe over or through concrete surface and attach a Terra-Vent End Out at both ends of the pipe before connecting the Terra-Vent to the pipe reducer. Seal the Terra-Vent to the Terra-Vent End Out using fabric reinforcement tape. Refer to Terra-Vent detail provided by Land Science.
D. Place vent risers per specifying engineer’s project specifications. Connect Terra-Vent to Terra-Vent End Out and seal with fabric reinforced tape. Use Terra-Vent End Out with the specified diameter piping as shown on system drawings.
3.5 PLACEMENT OF OVERLYING AND ADJACENT MATERIALS
A. All overlying and adjacent material shall be placed or installed using approved procedures and guidelines to prevent damage to the strip geocomposite.
B. Equipment shall not be directly driven over and stakes or any other materials may not be driven through the strip geocomposite.
© 2019 Land Science 1
Nitra-Seal System Quality Control
Certified Applicator
Authorized installation of Nitra-Seal can only be accomplished by one of Land Science Certified Applicators.
Membrane Inspections
For projects that will require a material or system (workmanship and material) warranty, Land Science will require a manufacturer’s representative or certified 3rd party inspector to inspect and verify that the membrane has been installed per the manufacturer’s recommendations.
The applicator is responsible for contacting the inspector for inspection. Prior to application of the membrane, a notice period for inspection should be agreed upon between the applicator and inspector.
Material Yield
Material yield is one of the first indicators in determining if the Nitra-Core layer has been installed correctly. A baseline standard for yield is as follows:
Material Container 30 dry mils 40 dry mils 60 dry mils 80 dry mils
55 Gallon Drum 1870 ft2 1,323 ft2 935 ft2 700 ft2
275 Gallon Tote 9,350 ft2 6,615 ft2 4,675 ft2 3500 ft2
The estimated yield is 24 ft2 per gallon for a 40 dry mil application using the recommended thickness, unless otherwise noted by a specified engineer or regulatory agency.
Yields can decrease based on the complexity of the foundation. Projects containing many penetrations and areas where a lot of detailing is required might reduce the material yield to 20 ft2 or 18 ft2 per gallon for a 40-mil membrane.
Millage Verification
The measurement tools listed below will help verify the thickness of the Nitra-Core layer. As measurement verification experience is gained, these tools will help confirm thickness measurements that can be obtained by pressing one’s fingers into the Nitra-Core membrane.
To verify the mil thickness of the Nitra-Core, the following measurement devices are required:
Mil reading caliper: Calipers are used to measure the thickness of coupon samples. To measure coupon samples correctly, the thickness of the Nitra-Base sheet layers must be taken into account (This is best done by obtaining a sample of the Nitra-Base layer and then zeroing out the caliper to the Nitra-Base layer). Mark sample area for repair.
Wet mil thickness gauge: A wet mil thickness gauge may be used to quickly measure the mil thickness of the Nitra-Core layer. The thickness of the Nitra-Base sheet layers do not factor into the mil thickness reading, but the softness of the subgrade might result in inaccurate readings.
NOTE: When first using a wet mil thickness gauge on a project, collect coupon samples to verify the wet mil gauge thickness readings.
Needle nose digital depth gauge: A needle nose depth gauge can be used when measuring the Nitra-Core thickness on vertical walls or in field measurements. Mark measurement area for repair.
To obtain a proper wet mil thickness reading, take into account the 20 to 30 percent shrinkage that will occur as the membrane fully cures. Not taking into account the thickness of the sheet layers, a freshly sprayed membrane should have a minimum wet thickness of 50 (20%) to 57 (30%) wet mils.
© 2019 Land Science 2
Visual Inspections
The guidelines outlined in this section provide ways to quantify and observe the proper installation of the Nitra-Seal system. However, a visual inspection should also be done to ensure any visual imperfections are not present, i.e. fish-mouths, punctures, voids, etc. During a visual inspection, punctures in the Nitra-Seal system should be easy to identify due to the color contrasting layers of the system.
Membrane Testing Log
To aid in the inspection process and properly document the Nitra-Seal membrane inspection, create a membrane testing log. We recommend creating the log by using the foundation plan (plan view) of the structure and then creating a 500 square foot grid over the foundation. If this is not able to be done, enclosed is a membrane testing log template that can also be used. (Appendix E)
Wet Mil Thickness Readings
A wet mil thickness gauge is one method to verify the mil thickness of the Nitra-Core layer. An advantage to this method is the ability to verify the Nitra-Core thickness by minimizing destructive coupon sampling.
1. Create a membrane testing log by obtaining a copy of the foundation plan and then draw a 500 square foot gridover the foundation plan. Make two copies of the membrane testing log; one should be used when collectingcoupon samples and the other should be used when conducting the smoke test.
2. Note time, date, project name, inspector name, temperature and weather conditions on testing log.
3. Number each quadrant and inspect sequentially.
4. When arriving at each quadrant quickly assess if there are any conditions that might present any challenges inestablishing a proper seal. Note areas and discuss with applicator.
5. Conduct a visual inspection of the membrane. Look for areas where a proper seal was not created, i.e. a fish-mouth at the termination and areas where the membrane might be sprayed thin. Mark areas needed for repair inthe field with florescent paint or with chalk. Also make a note on the testing log.
6. Conduct a thickness sample in the area that is suspected to be sprayed thin and take three readings within 3” ofone another. When beginning a project, verify the wet mil gauge thickness reading by cutting a coupon
sample and measuring the thickness with a caliper. Once wet mil thickness readings have been confirmed andestablished, confirm wet mil thickness periodically by taking a coupon sample and caliper measurement.
7. After sampling 5 quadrants it is at the discretion of the inspector to continue collecting samples every 500 ft2 or1,000 ft2.
8.This method will verify the thickness of the Nitra-Core layer prior to it fully curing. Observed shrinkage of theNitra-Core layer during the curing process ranges from 20% to 30%. When taking uncured samples assume aminimum of 5% loss for horizontal surfaces and 30% for vertical surfaces. Assuming a 20-30% loss, the gaugeshould read a mil thickness between 50 and 57 mils.
9. If using a wet mil gauge to verify a fully cured membrane, the gauge should read 57 mils.
10. When testing is complete, send a copy of the membrane testing log to Land Science. Keep the coupon samplesfor the file, or send them to Land Science.
© 2019 Land Science 3
Coupon Sampling
Coupon sampling is the most accurate way to verify the Nitra-Core thickness. However, please note that taking too many coupon samples, or destructive samples, can be counter-productive. To collect a coupon sample the following steps should be followed:
1. Create a membrane testing log by obtaining a copy of the foundation plan and then draw a 500 square foot gridover the foundation plan. Make two copies of the membrane testing log, one should be used when collectingcoupon samples and the other should be used when conducting the smoke test.
2. Note time, date, project name, inspector name, temperature and weather conditions on testing log.
3. Number each quadrant and inspect sequentially.
4. When arriving at each quadrant quickly assess if there are any conditions that might present any challenges inestablishing a proper seal. Note areas and discuss with applicator.
5. Conduct a visual inspection of the membrane. Look for areas where a proper seal was not created, i.e. a fish-mouth at the termination and areas where the membrane might be sprayed thin. Mark areas needed for repair inthe field with florescent paint or with chalk. Also make a note on the testing log.
6. Calibrate mil reading caliper to account for the thickness of the Nitra-Base layer. This is best done by obtaining asample of the Nitra-Base layer and then zeroing out the caliper to the Nitra-Base layer.
7. Collect a coupon sample in the area that is suspected to be sprayed thin. Use a box cutter to cut a 3 square inchsample from the membrane. Measure each side to confirm the specified minimum thickness has been obtained.Number each sample and save in the job file. Mark the area for repair in the field and on the site plan.
8. After sampling 5 quadrants it is at the discretion of the inspector to continue collecting samples every 500 ft2 or1,000 ft2.
9.Samples may be collected prior to the Nitra-Core layer fully curing. Observed shrinkage of the Nitra-Core layerduring the curing process for horizontal surfaces is 10%. Assuming a 10% loss, a minimum of 44 mills thicknessshould be measured for a cured measurement of 40 mils.
10. When testing is complete, send a copy of the membrane testing log to Land Science. Keep the coupon samplesfor the file, or send them to Land Science.
Smoke Testing
This test is intended to visually verify and confirm the proper installation of the Nitra-Seal system. Land Science requires a
smoke test on all projects in order to obtain a warranty. The smoke test will be performed by the applicator.
Smoke testing should occur after the Nitra-Core layer has been installed and mil thickness verified. Smoke testing may occur after the Land Science Bond layer is installed, if preferred by the applicator. Upon completion of the original smoke test, additional smoke tests can be conducted per the membrane manufacturer’s, specifying engineer or regulatory agency’s request. To conduct a smoke test follow these steps:
1. One smoke test can cover between 2000-3000 square feet per test. However, coverage will greatly depend on thesub grade under the membrane. On sites where multiple smoke tests will be needed, use the first two smoke teststo estimate the coverage area per test.
2. Visual verification of soundness of seams, terminations and penetrations should be performed. Identify/correctany apparent deficiencies and/or installation problems.
3. Note time, date, project name, inspector name, temperature and weather conditions on testing log. In addition,record humidity, barometric pressure, and wind speed/direction. Confirm wind speed is below 15 mph. Visualidentification of leaks becomes more difficult with increasing wind speed.
4. Cap other vent outlet(s) not being used. If the installation has no sub-slab vent system or the membrane isisolated from the vent system, connect the smoke testing system directly to the membrane using a temporary boot
© 2019 Land Science 4
collar or other method. Insert the smoke test hose into coupon sampling locations, creating a seal around the smoke test hose with a rag.
5. Activate the smoke generator/blower system and connect to sub-slab vent riser or directly to the membrane.
6. To confirm the adequate flow of smoke under the membrane cut a 2” vent in the membrane to facilitate the purgingof air pockets under it. If working properly, smoke will consistently flow though the 2” vent. If a low rate of smokeflow is observed it is an indication of poor smoke flow under the membrane. If low flow does occur, insert thesmoke testing hose into the 2” membrane vent.
7. Mark sampling locations with fluorescent paint or chalk. Repair sampling locations per Land Sciencerecommendations
8. Maintain operation of smoke generator/blower system for at least 15 minutes following purging of membrane.Thoroughly inspect entire membrane surface. Use fluorescent paint or chalk to mark/label any leak locations.Mark/label leak locations on testing log. NOTE: The duration of the smoke test will vary depending on the size ofthe area being tested. To help determine the duration, monitor the pressure building up under the membrane. Ifexcessive lifting of the membrane occurs, decrease the duration or pressure of the smoke test.
9. Prepare membrane inspection log. Identify the type of leak found, i.e. poor seal around penetration, fish-mouth,puncture, etc.
10. Repair leak locations marked in step 7 and step 8 per procedures outlined in “Nitra-Seal Repair Procedures”section using Nitra-Core or Nitra-Core DETAIL.
11. Repeat steps 4 through 10 as necessary to confirm the integrity of the membrane.
12. Complete the smoke testing inspection form indicating the successful completion of the smoke test.
Post Installation Inspection
After a manufacturer’s representative or 3rd party inspector signs off on the membrane installation and the steel workers begin to install the rebar, it is recommended to conduct a visual inspection prior to the pouring of concrete. Damages are most likely to occur during this time and it is imperative that punctures are identified prior to the placement of the slab. The system configuration of Nitra-Seal, the top white Land Science Bond layer with a middle black layer, will make rebar punctures easy to identify when conducting a visual inspection.
PRODUCT DATA SHEET
Land Science / 1011 Calle Sombra / Suite 110 / San Clemente / CA / 92673
Ph. 949-366-8000 / F. 949- 366-8090 / www.landsciencetech.com
Land Science Bond
Land Science Bond is comprised of a gray high strength HDPE membrane that is thermally bonded to a polypropylene geotextile. Land Science Bond layer is installed as a protection course over the Nitra-Base and Nitra-Core layers with
the geotextile side facing up. The Land Science Bond layer also provide an excellent substrate and friction surface for concrete to adhere to.
PROPERTIES TEST METHOD LAND SCIENCE BOND
Film Thickness 18 mil
Color Gray HDPE - White Geotextile
Weight ASTM D751 – 06 6.8 oz/yd2
Tensile Strength (grab) ASTM D751 – 06 CD – 186.8 lbf.
MD – 153.4 lbf.
Tear Strength (Trapezoidal) ASTM D751 – 06 CD – 36.7 lbf.
MD – 28.0 lbf
Puncture Resistance ASTM D4833-07 61.2 lbf.
Life Expectancy ASTM E 154-93 Indefinite
Elongation ASTM D751 – 06 CD – 72.1%
MD – 49.6%
Chemical Resistance Excellent
Packaging: 102” x 150’ Roll
PRODUCT DATA SHEET
Land Science / 1011 Calle Sombra / Suite 110 / San Clemente / CA / 92673
Ph. 949-366-8000 / F. 949- 366-8090 / www.landsciencetech.com
Nitra-Core
Nitra-Core is a patent pending elastic water-based co-polymer modified asphaltic, nitrile latex and other proprietary compounds spray applied vapor barrier. This chemical resistant barrier typically installed at 40 mils thickness uniformly
above Nitra-Base layer to provide a monolithic and seamless system. Nitra-Core has exceptional bonding to a wide variety of substrates including green concrete. This barrier will build up to a specific thickness in a single application through multiple passes allowing it for easy installation around penetrations, uneven surfaces and oddly shaped areas.
PROPERTIES TEST METHOD Nitra-Core
Application to TerraBase 40 mils (23 ft2/gal)
Typical Uncured Properties
Specific Gravity ASTM D 244 1.0
Brookfield Viscosity ASTM D2196 75 – 90 centipoises
pH Oakton 10 – 13
Residue Content ASTM D2939 62 – 65%
Color Brown to Black
Demulsibility ASTM D6936 35 – 40%
Non-Toxic No Solvent
Shelf Life 6 months
Typical Cured Properties with
Nitra-Base & Land Science Bond
PCE Diffusion Coefficient GeoKinetics Laboratory 9.1 x 10-12 m2/day
Benzene Diffusion Coefficient GeoKinetics Laboratory 4.9 x 10-13 m2/day
Packaging: 55 gal. drums and 275 gal. totes
PRODUCT DATA SHEET
Land Science / 1011 Calle Sombra / Suite 110 / San Clemente / CA / 92673
Ph. 949-366-8000 / F. 949- 366-8090 / www.landsciencetech.com
Nitra-Base
Nitra-Base is comprised of a high strength HDPE membrane that is thermally bonded to a polypropylene geotextile. Nitra-Base layer is installed as a base layer prior to Nitra-Core spray application with the HDPE side facing up.
PROPERTIES TEST METHOD NITRA-BASE
Film Thickness 23 mil
Color HDPE/Geotextile (white)
Weight ASTM D751 – 06 6.8 oz/yd2
Tensile Strength (grab) ASTM D751 – 06 CD – 270.5 lbf.
MD – 350.9 lbf.
Tear Strength (Trapezoidal) ASTM D751 – 06 CD – 48.3 lbf.
MD – 44.4 lbf
Puncture Resistance ASTM D4833-07 98.6 lbf.
Life Expectancy ASTM E 154-93 Indefinite
Elongation ASTM D751 – 06 CD – 26.0%
MD – 32.6%
Chemical Resistance Excellent
Packaging: 102” x 150’
PRODUCT DATA SHEET
Land Science / 1011 Calle Sombra / Suite 110 / San Clemente / CA / 92673
Ph. 949-366-8000 / F. 949- 366-8090 / www.landsciencetech.com
TerraVent
Terra Vent is a low profile, trenchless, flexible, sub slab vapor collection system used in lieu of perforated piping. It consists of a heavy duty 3-dimensional, high flow, polypropylene dimpled core. The core is then wrapped and bonded
with a non-woven geotextile to prevent soil, sand or gravel pass into the dimple core. Terra Vent core is made from 100% Post-Industrial/Pre-Consumer polypropylene regrind material.
PROPERTIES TEST METHOD TerraVent
Vent Core Properties
Compressive Strength ASTM D-1621 9,500 psf.
Thickness 1 inch
Flow Rate - Hydraulic gradient - 0.1 ASTM D-4716 30 gpm/ft width
Vent Fabric Properties
Grab Tensile Strength ASTM D-4632 100 lbs.
CBR Puncture ASTM D-6241 250 lbs.
Flow ASTM D-4491 140 gpm/ft2
AOS ASTM D-4751 70 U.S Sieve
Permittivity ASTM D-4491 2.0 sec-1
U.V Resistance ASTM D-4355 70% @500 hrs.
Packaging: Dimension: 12”x 165’
Weight: 68 lbs.
TerraShield Core or MonoShield Core
949353 Version #: 01 Revision date: - Issue date: 21-May-2019
SDS US
1 / 7
1. Identification
Product identifier
Other means of identification
Recommended use
Recommended restrictions
SAFETY DATA SHEET
Nitra-Core
None.
Spray-applied asphalt for vapor barrier systems.
None known.
Manufacturer/Importer/Supplier/Distributor information
Company Name
Address
General information
E-mail
Land Science, a Division of Regenesis
1011 Calle Sombra
San Clemente, CA 92673 USA
949-366-8000
[e-mail]
Emergency phone number
USA, Canada, Mexico
International
2.Hazard(s) identification
Physical hazards
For Hazardous Materials Incidents ONLY (spill, leak, fire, exposure or accident), call CHEMTREC 24/7 at: 1-800-424-9300
1-703-527-3887
Not classified.
Health hazards
OSHA defined hazards
Label elements
Sensitization, skin
Not classified.
Category 1
Signal word Warning
Hazard statement May cause an allergic skin reaction.
Precautionary statement
Prevention Avoid breathing mist/vapors. Contaminated work clothing must not be allowed out of the workplace. Wear protective gloves.
Response If on skin: Wash with plenty of water. If skin irritation or rash occurs: Get medical advice/attention. Wash contaminated clothing before reuse.
Storage Store away from incompatible materials.
Disposal Dispose of contents/container in accordance with local/regional/national/international regulations.
Hazard(s) not otherwise classified (HNOC) None known.
Supplemental information None.
3.Composition/information on ingredients
Mixtures
Chemical name
Asphalt
CAS number %
8052-42-4 50 - 70
Water 7732-18-5 30 - 40
Acrylonitrile-based polymer - < 15
Emulsifier - < 1
TerraShield Core or MonoShield Core
949353 Version #: 01 Revision date: - Issue date: 21-May-2019
SDS US
2 / 7
Ammonium hydroxide 1336-21-6 < 0.2
Composition comments
4. First-aid measures
Inhalation
Skin contact
Eye contact
Ingestion
Most important
symptoms/effects, acute and delayed
Indication of immediate
medical attention and special treatment needed
General information
5. Fire-fighting measures
Suitable extinguishing media
Unsuitable extinguishing
media
Specific hazards arising from the chemical
Special protective equipment and precautions for firefighters
Fire fighting
equipment/instructions
Specific methods
General fire hazards
All concentrations are in percent by weight unless otherwise indicated. Components not listed are either non-hazardous or are below reportable limits. Chemical ingredient identity and/or concentration information withheld for some or all components present is confidential business information (trade secret), and is being withheld as permitted by 29 CFR 1910.1200(i).
Move to fresh air. Call a physician if symptoms develop or persist.
Remove contaminated clothing immediately and wash skin with soap and water. In case of eczema or other skin disorders: Seek medical attention and take along these instructions.
Rinse with water. Get medical attention if irritation develops and persists.
Rinse mouth. Get medical attention if symptoms occur.
May cause an allergic skin reaction. Dermatitis. Rash.
Provide general supportive measures and treat symptomatically. Keep victim under observation. Symptoms may be delayed.
Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves. Show this safety data sheet to the doctor in attendance. Wash contaminated clothing before reuse.
Foam. Dry powder. Carbon dioxide (CO2).
Do not use water jet as an extinguisher, as this will spread the fire.
During fire, gases hazardous to health may be formed. Combustion products may include: carbon oxides, nitrogen oxides.
Self-contained breathing apparatus and full protective clothing must be worn in case of fire.
Move containers from fire area if you can do so without risk.
Use standard firefighting procedures and consider the hazards of other involved materials.
Material will burn in a fire.
6. Accidental release measures
Personal precautions, protective equipment and emergency procedures
Methods and materials for containment and cleaning up
Environmental precautions
7. Handling and storage
Precautions for safe handling
Conditions for safe storage, including any incompatibilities
Keep unnecessary personnel away. Keep people away from and upwind of spill/leak. Wear appropriate protective equipment and clothing during clean-up. Avoid breathing mist/vapors. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Ensure adequate ventilation. Local authorities should be advised if significant spillages cannot be contained. For personal protection, see section 8 of the SDS.
Large Spills: Stop the flow of material, if this is without risk. Dike the spilled material, where this is possible. Absorb in vermiculite, dry sand or earth and place into containers. Following product recovery, flush area with water.
Small Spills: Wipe up with absorbent material (e.g. cloth, fleece). Clean surface thoroughly to remove residual contamination.
Never return spills to original containers for re-use. For waste disposal, see section 13 of the SDS.
Avoid discharge into drains, water courses or onto the ground.
Avoid breathing mist/vapors. Avoid contact with eyes, skin, and clothing. Avoid prolonged exposure. Provide adequate ventilation. Wear appropriate personal protective equipment. Observe good industrial hygiene practices.
Store in tightly closed container. Store away from incompatible materials (see Section 10 of the SDS). Protect from freezing.
TerraShield Core or MonoShield Core
949353 Version #: 01 Revision date: - Issue date: 21-May-2019
SDS US
3 / 7
8. Exposure controls/personal protection
Occupational exposure limits
US. OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000)
Components Type
Value
Ammonium hydroxide (CAS 1336-21-6) PEL 35 mg/m3 50 ppm US. ACGIH Threshold Limit Values
Components Type
Value
Form
Ammonium hydroxide (CAS 1336-21-6)
Asphalt (CAS 8052-42-4)
STEL 35 ppm TWA 25 ppm
TWA 0.5 mg/m3 Inhalable fume.
US. NIOSH: Pocket Guide to Chemical Hazards Components Type
Value
Form
Ammonium hydroxide (CAS 1336-21-6)

Asphalt (CAS 8052-42-4)
Biological limit values
Appropriate engineering controls
STEL 27 mg/m3

35 ppm
TWA 18 mg/m3
25 ppm
Ceiling 5 mg/m3 Fume.
No biological exposure limits noted for the ingredient(s).
Good general ventilation should be used. Ventilation rates should be matched to conditions. If applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits. If exposure limits have not been established, maintain airborne levels to an acceptable level.
Individual protection measures, such as personal protective equipment
Eye/face protection
Skin protection
Hand protection

Skin protection
Other
Respiratory protection
Thermal hazards
General hygiene considerations
Wear approved chemical safety goggles. Risk of splashes: Face shield is recommended. Wear appropriate chemical resistant gloves. Suitable gloves can be recommended by the glove supplier. Wear appropriate chemical resistant clothing. Use of an impervious apron is recommended.
When workers are facing concentrations above the exposure limit they must use appropriate certified respirators. Wear NIOSH approved respirator appropriate for airborne exposure at the point of use. Appropriate respirator selection should be made by a qualified professional.
Wear appropriate thermal protective clothing, when necessary.
Always observe good personal hygiene measures, such as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash work clothing and protective equipment to remove contaminants. Contaminated work clothing should not be allowed out of the workplace.
9. Physical and chemical properties
Appearance
Physical state
Form
Color
Odor

Liquid.
Liquid.
Black or dark brown.
Not available.
Odor threshold Not available.
pH 8 - 10
Melting point/freezing point 32 °F (0 °C)
TerraShield Core or MonoShield Core
949353 Version #: 01 Revision date: - Issue date: 21-May-2019
SDS US
4 / 7
Initial boiling point and boiling range
212 °F (100 °C)
Flash point Not available.
Evaporation rate Not available.
Flammability (solid, gas) Not applicable.
Upper/lower flammability or explosive limits
Flammability limit - lower (%)
Flammability limit - upper (%)
Not available.
Not available.
Vapor pressure Not available.
Vapor density Not available.
Relative density Not available.
Solubility(ies)
Solubility (water) Not available.
Partition coefficient (n-octanol/water) Not available.
Auto-ignition temperature Not available.
Decomposition temperature Not available.
Viscosity < 2000 cP (140 °F (60 °C))
Other information
Explosive properties
Oxidizing properties
10.Stability and reactivity
Reactivity
Chemical stability
Possibility of hazardous reactions
Conditions to avoid
Incompatible materials
Hazardous decomposition
products
Not explosive.
Not oxidizing.
The product is stable and non-reactive under normal conditions of use, storage and transport.
Material is stable under normal conditions.
No dangerous reaction known under conditions of normal use.
Contact with incompatible materials. Excessive heat or cold.
Strong oxidizing agents.
No hazardous decomposition products are known.
11.Toxicological information
Information on likely routes of exposure
Inhalation Prolonged or repeated inhalation may cause respiratory tract irritation.
Skin contact May cause an allergic skin reaction.
Eye contact Direct contact with eyes may cause temporary irritation.
Ingestion May cause discomfort if swallowed.
Symptoms related to the
physical, chemical and toxicological characteristics
May cause an allergic skin reaction. Dermatitis. Rash.
Information on toxicological effects
Acute toxicity Not expected to be acutely toxic.
Components Species
Ammonium hydroxide (CAS 1336-21-6)
Acute
Oral
Test Results
LD50 Rat 350 mg/kg
Skin corrosion/irritation
Serious eye damage/eye irritation
Prolonged skin contact may cause temporary irritation.
Direct contact with eyes may cause temporary irritation.
TerraShield Core or MonoShield Core
949353 Version #: 01 Revision date: - Issue date: 21-May-2019
SDS US
5 / 7
Respiratory or skin sensitization
Respiratory sensitization Not a respiratory sensitizer.
Skin sensitization
Germ cell mutagenicity
May cause an allergic skin reaction.
No data available to indicate product or any components present at greater than 0.1% are mutagenic or genotoxic.
Carcinogenicity Not classifiable as to carcinogenicity to humans. IARC has listed Straight-Run Bitumens (including CAS 8052-42-4) as Group 2B during road paving due to PAH release upon heating to a high temperature.
IARC Monographs. Overall Evaluation of Carcinogenicity
Asphalt (CAS 8052-42-4) 2B Possibly carcinogenic to humans.
NTP Report on Carcinogens
Not listed.
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1053)
Not listed.
Reproductive toxicity
Specific target organ toxicity - single exposure
Specific target organ toxicity -
repeated exposure
This product is not expected to cause reproductive or developmental effects.
Not classified.
Not classified.
Aspiration hazard Not an aspiration hazard.
12.Ecological information
Ecotoxicity The product is not classified as environmentally hazardous. However, this does not exclude the possibility that large or frequent spills can have a harmful or damaging effect on the environment.
Components
Ammonium hydroxide (CAS 1336-21-6)
Aquatic
Species Test Results
Algae
Acute
Crustacea
Fish
Chronic
Crustacea
Fish
EC50
LC50
LC50
LOAEL
NOEC
Chlorella vulgaris
Daphnia magna
Fathead minnow (Pimephales promelas)
Daphnia magna
Ictalurus punctatus
2700 mg/l, 18 days
101 mg/l, 48 hours (NH3)
0.75 - 3.4, 96 hours (NH3)
1.3 mg/l, 21 days (NH3)
< 48 µg/l, 31 days (NH3)
Persistence and degradability
Bioaccumulative potential
Mobility in soil
No data is available on the degradability of this product.
No data available.
No data available.
Other adverse effects None known.
13.Disposal considerations
Disposal instructions
Local disposal regulations
Hazardous waste code
Waste from residues / unused products
Contaminated packaging
14.Transport information
DOT
Collect and reclaim or dispose in sealed containers at licensed waste disposal site. Incinerate the material under controlled conditions in an approved incinerator. Dispose of contents/container in accordance with local/regional/national/international regulations.
Dispose in accordance with all applicable regulations.
The waste code should be assigned in discussion between the user, the producer and the waste disposal company.
Dispose of in accordance with local regulations. Empty containers or liners may retain some product residues. This material and its container must be disposed of in a safe manner (see: Disposal instructions).
Since emptied containers may retain product residue, follow label warnings even after container is emptied. Empty containers should be taken to an approved waste handling site for recycling or disposal.
Not regulated as dangerous goods.
TerraShield Core or MonoShield Core
949353 Version #: 01 Revision date: - Issue date: 21-May-2019
SDS US
6 / 7
IATA
Not regulated as dangerous goods.
IMDG
Not regulated as dangerous goods.
Transport in bulk according to
Annex II of MARPOL 73/78 and the IBC Code
15. Regulatory information
US federal regulations
Not established.
This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200.
TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)
Not regulated.
CERCLA Hazardous Substance List (40 CFR 302.4)
Ammonium hydroxide (CAS 1336-21-6) Listed.
Asphalt (CAS 8052-42-4) Listed.
SARA 304 Emergency release notification
Not regulated. OSHA Specifically Regulated Substances (29 CFR 1910.1001-1053)
Not listed.
Toxic Substances Control Act (TSCA) All components of the mixture on the TSCA 8(b) inventory are designated “active”.
Superfund Amendments and Reauthorization Act of 1986 (SARA)
SARA 302 Extremely hazardous substance
Not listed.
SARA 311/312 Hazardous chemical
Classified hazard
categories
SARA 313 (TRI reporting)
Not regulated.
Yes
Respiratory or skin sensitization
Other federal regulations
Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List
Not regulated.
Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130)
Not regulated.
Safe Drinking Water Act (SDWA)
US state regulations
Not regulated.
US. Massachusetts RTK - Substance List
Ammonium hydroxide (CAS 1336-21-6) Asphalt (CAS 8052-42-4) US. New Jersey Worker and Community Right-to-Know Act
Ammonium hydroxide (CAS 1336-21-6)
Asphalt (CAS 8052-42-4)
US. Pennsylvania Worker and Community Right-to-Know Law
Ammonium hydroxide (CAS 1336-21-6)
Asphalt (CAS 8052-42-4)
US. Rhode Island RTK
Asphalt (CAS 8052-42-4)
California Proposition 65
WARNING: This product can expose you to Asphalt, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
TerraShield Core or MonoShield Core
949353 Version #: 01 Revision date: - Issue date: 21-May-2019
SDS US
7 / 7
California Proposition 65 - CRT: Listed date/Carcinogenic substance
Asphalt (CAS 8052-42-4) Listed: January 1, 1990
US. California. Candidate Chemicals List. Safer Consumer Products Regulations (Cal. Code Regs, tit. 22, 69502.3,
subd. (a))
Asphalt (CAS 8052-42-4)
International Inventories
Country(s) or region Inventory name On inventory (yes/no)*
Australia
Canada
Canada
China
Australian Inventory of Chemical Substances (AICS) Yes
Domestic Substances List (DSL) Yes
Non-Domestic Substances List (NDSL) No
Inventory of Existing Chemical Substances in China (IECSC) Yes
Europe European Inventory of Existing Commercial Chemical No Substances (EINECS)
Europe
Japan
Korea
New Zealand
European List of Notified Chemical Substances (ELINCS) No
Inventory of Existing and New Chemical Substances (ENCS) Yes
Existing Chemicals List (ECL) Yes
New Zealand Inventory Yes
Philippines Philippine Inventory of Chemicals and Chemical Substances (PICCS) Yes
Taiwan
United States & Puerto Rico
Taiwan Chemical Substance Inventory (TCSI) Yes
Toxic Substances Control Act (TSCA) Inventory Yes
*A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s).A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing country(s).
16. Other information, including date of preparation or last revision
Issue date
Revision date
21-May-2019
-
Version # 01
HMIS® ratings
NFPA ratings
Health: 2 Flammability: 1 Physical hazard: 0
Disclaimer Land Science, a Division of Regenesis cannot anticipate all conditions under which this information and its product, or the products of other manufacturers in combination with its product, may be used. It is the user’s responsibility to ensure safe conditions for handling, storage and disposal of the product, and to assume liability for loss, injury, damage or expense due to improper use. The information in the sheet was written based on the best knowledge and experience currently available.
1
2 0
WARRANTY DATA
Nitra-Seal Warranty Information
Land Science® is pleased to offer the following warranty options for the Nitra-Seal™ vapor intrusion management system.
The warranty options below are approved on a project-by-project basis. To gain approval for a specific project, please con-
tact your local Land Science representative or our corporate office [phone].
Approval of Warranty
Warranty options listed below must be requested and approved by Land Science prior to the formal bids being submitted by Land Science’s certified contractors. A standard One (1) year Material Warranty will be assumed if no special request is made.
Warranty Options
Material Warranty
The standard material states that the Nitra-Seal material will be free of defects for the specific warranty period. The stan-dard material warranty offered by Land Science is a one (1) year Material Warranty.
Extended term material warranties are offered for a period ranging from ten (10) to thirty (30) years. A review of the follow-ing will be required to obtain an extended term Material Warranty:
• Soils report, or equivalent document, which contains groundwater or soil gas data prior to bids being submitted.• Inspection Field Report generated by 3rd party inspector certified by Land Science confirming the QA/QC re-quirements set forth by Land Science are followed.
Extended Term Material Warranty fee:
• Material warranty extended for 10 years: $0.025 per square foot• Material warranty extended for 20 years: $0.05 per square foot• Material warranty extended for 30 years: $0.10 per square foot
Corporate Headquarters1011 Calle Sombra San Clemente, CA 92673 USATel: +1.949.481.8118
www.landsciencetech.com © 2019 All rights reserved. Land Science is a registered trademark and Nitra-Seal is a trademark of REGENESIS Bioremediation Products
Material
1 Year 20 Year
System
5 Year 10 Year 15 Year 30 Year
Corporate Headquarters1011 Calle Sombra San Clemente, CA 92673 USATel: +1.949.481.8118
www.landsciencetech.com © 2019 All rights reserved. Land Science is a registered trademark and Nitra-Seal is a trademark of REGENESIS Bioremediation Products
WARRANTY DATA
System Warranty
The System Warranty option covers both the Nitra-Seal material and the applicator’s workmanship for the specified war-ranty period.
System warranties are available for a period ranging from five (5) to twenty (20) years. To request a system warranty, a review of the following will be required:
• Soils report, or equivalent document, which contains groundwater or soil gas data prior to bids being submitted.• Comprehensive review of project drawings prior to bid date including project-specified vapor mitigation details or drawings.• Inspection Field Report generated by 3rd party inspector certified by Land Science confirming the QA/QC re-quirements set forth by Land Science are followed.
System Warranty fee:
• 5-year system warranty is $0.04 per square foot, minimum cost of $250.00• 10-year system warranty is $0.08 per square foot, minimum cost of $500.00• 15-year system warranty is $0.12 per square foot, minimum cost of $750.00• 20-year system warranty is $0.16 per square foot, minimum cost of $1,000.00
Please contact your Land Science representative to discuss performance goals and desired warranty coverage.
[phone]
www.LandScienceTech.com
©2020 All rights reserved. REGENESIS, Land Science and Nitra-Seal are registered trademarks and Nitra-Core, Nitra-Base are trademarks of REGENESIS Bioremediation Products Inc.

APPENDIX C

Soil Vapor Sampling Guide
Sample Manifold Configuration
A. Deadhead/Shut-In Test B. Helium Tracer Test
1.Connect manifold to sample can 1.Connect to soil vapor point and place shroud over.
2. Make sure fittings and caps are tight, then use hand pump
to generate vacuum >15 in Hg. Watch gauges.
2.
3.
4.Record He concentration in shroud and in tedlar bag.
Holds vacuum?
Legend
backflow preventer
flow controller
cap
/ summa canister shut-off valve (closed/open)
/ sampling train shut-off valve (closed/open)Helium concentration in tubing >10% of shroud (i.e. >15,000 ppm =1.5%)?
pressure gauge no -> proceed to sampling
yes -> leak test failed - tighten connection to sample & try again
C. Sample Collection
1. Close sampling train shut-off valve
2.
3.Shut off can when vacuum at approx. -5 in Hg.
4.
Enrich shroud with ~15% helium (He). Record He concentration
and begin purging with syringe or hand pump
Purge a total of three volumes. At end of each volume, purge
into tedlar bag. Record He concentration in shroud.
Open sample can and note time and vacuum at start. Note
vacuum at regular intervals -
Do not let vacuum go to zero
Sampling is complete. Remove and cap sample can.
Abandon & patch sampling point (if temporary).
yes -> proceed to helium tracer test
no -> tighten fittings and try again
nut and ferrule (Swagelok or equivalent)
C
N
open
Reads pressure at
sample point
Reads pressure in
sample can
Shut-off valve allows isolation during sampling
(prevents cross-contamination from ambient and purged air)
N N
sample
can
FC
C N
sample can
FC
N N
sample can
FC
Check He
in tedlar
after each
purge vol
N N
sample can
FC
~15% Helium
Record He
in shroud at
start and end
of each purge
open valve
C N
sample
can
FC
FC
(1) closevalve
Male Fitting
(to purge device)
Female Fitting
(to sample can)
Flow Controller
Male Fitting
(to sample point)
(2) open to initiate
sampling
3-way
valve
syringe