DSHW-2024-004869

2410 WEST CALIFORNIA AVENUE • SALT LAKE CITY, UTAH 84104
PHONE [phone] • FAX [phone]
Website: www.wasatch-environmental.com • e-Mail: [e-mail]
Mr. Ryan Health
Cottonwood Residential O.P., LP
February 19, 2024
Project No. 2201-001G
6340 South 3000 East, Suite 500
Cottonwood Heights, Utah 84121
SUBJECT: Indoor Air Monitoring Results Report
Broadway Apartments Leasing Office
333 East 200 South
Salt Lake City, Utah 84101
INTRODUCTION
Wasatch Environmental, Inc., (Wasatch) has completed the collection of indoor air samples to
demonstrate that the indoor air of the leasing office of the completed Broadway Apartments is not
impacted by the presence of a tetrachloroethene (PCE) groundwater plume originating from the offsite
former dry cleaning facility. A vapor mitigation system was installed beneath this office space during
construction of the building as this is the only portion of the building which is in direct contact with the
ground. The remaining ground level area of the building consists of parking.
The sampling followed an Indoor Air Monitoring Plan, dated December 29, 2022, which was approved by
the Utah Division of Waste Management and Radiation Control (DWMRC) in January 2023. The
objective of the sampling was to collect indoor air quality data prior to leasing office occupancy to
demonstrate that the vapor mitigation system installed is working as designed. Although the leasing
office is commercial space, at the suggestion of the Utah DWMRC, the samples were collected for 24
hours and compared to the United States Environmental Protection Agency (U.S. EPA) Regional
Screening Levels (RSLs) for residential use.
METHODOLOGY
On April 12 to 13, 2023, Wasatch collected six indoor air samples: four within the leasing office space
(IA-1 through IA-4) on the ground floor level, two in the mezzanine level (IA-5 and IA-6) above the leasing
office. One outdoor air sample (OA-1) was also collected as a background sample. The samples were
collected in common or lobby areas of the leasing office, as well as in some enclosed office areas. The
sample locations are shown on Figures 1 and 2.
A sample regulator with a flow restrictor and 6-liter Summa canister for each sampling location was
provided by the analytical laboratory. The sample regulator was attached to each 6-liter Summa canister.
The initial vacuum in each 6-liter Summa canister was checked and recorded on the chain-of-custody
forms provided by the laboratory. Samples w ere collected for a period of 24 hours after which the sample
canister was closed, and a brass cap tightened to the inlet of each sample canister. Canisters w ere
labeled with the appropriate sample location, as well as initial and final vacuum readings.
Chain-of-custody documentation was completed, and the samples were delivered to Pace Analytical for
analysis of volatile organic compounds by the U.S. EPA Method TO-15 select ion monitoring (SIM). The
requested analytes were PCE and its daughter (breakdown) products as follow:
•Trichloroethene (TCE)
•Trans-1,2-Dichloroethene
•Cis-1,2-Dichloroethene
•1,1-Dichloroethene

Wasatch Environmental Inc.
Page 2
• Vinyl Chloride

LABORATORY ANALYTICAL RESULTS

The indoor air sample analytical results are summarized in Table 1. Also shown on Table 1 are the U.S.
EPA RSLs for indoor air at residential sites. The results of the TO-15 SIM analyses were below the
laboratory method detection limit for all compounds, with the exception of PCE, which was reported in
sample IA-2 at a concentration just above the laboratory method detection limit. The concentration 0.141
micrograms per cubic meter (ug/m3) was significantly (orders of magnitude) below the residential RSL of
11 ug/m3. The background outdoor sample result for OA-1 was also below the laboratory method
detection limit. The analytical laboratory report and chain-of-custody documentation are presented in
Appendix A.

CONCLUSIONS

The results of the indoor air analyses were below laboratory method detection limits for five of the six
indoor air samples. The results in sample AI-2 contained a trace concentration of PCE well below the
U.S. EPA RSLs for indoor air at residential sites. These results indicate that there is not a vapor intrusion
concern for indoor air quality in the building.

The vapor mitigation system installed at the Broadway Apartments was constructed of Stego Wrap Vapor
Barrier (15-MIL) and sub-slab passive collection pipes vented to the roof through two PVC riser pipes.
RadoVent installed the system following Stego Industries installation recommendations for joint seam
overlap, pipe penetration sealing, wall terminus and other instructions to create a monolithic membrane.
RadoVent supervisor Tim Sandberg has a National Radon Proficiency Program (NRPP) Certification
#106044-RMP. Site plans showing the area of installation and photographs of the installation process are
attached in Appendix B.

Since the vapor mitigation system is functioning as designed, and the air monitoring results are below the
residential RSLs, the leasing office may be used as described in the Environmental Covenant and Site
Management Plan. No additional indoor air sampling or vapor intrusion measures are recommended as
long as the vapor mitigation sysytem remains in place.

Our services consist of professional opinions and recommendations made in accordance with generally
accepted environmental engineering principles and practices. This warranty is in lieu of all other
warranties either expressed or implied.

Should you have any questions, please do not hesitate to contact us.

Sincerely,

WASATCH ENVIRONMENTAL, INC.

Christopher J. Nolan, P.G.
Senior Project Manager

Figures

Figure 1 – Ground Floor Sample Locations
Figure 2 – Mezzanine Sample Locations

Wasatch Environmental Inc.
Page 3

Table

Table 1 – Indoor Air Sampling Results

Appendices

Appendix A – Laboratory Report
Appendix B – Vapor Barrier Installation Documentation

Figures

FIGURE 1DATE: December 20, 2022PROJECT NO.: 2201-001GEnvironmental Science and Engineering
IA-1
IA-2
IA-3
IA-4
=Indoor Air Sample
Ground Floor Sample Locations
FIGURE 2DATE: December 20, 2022PROJECT NO.: 2201-001GEnvironmental Science and Engineering
OA-1
(Background)
OA-1
(Background)
IA-5
IA-6
= Indoor Air Sample
= Outdoor Air Sample
Mezzanine Sample Locations

Table

Sampling Location
Te
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1
,
2
-
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-
1
,
2
-
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1
-
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IA-1 <0.136 <0.107 <0.0793 <0.0793 <0.0793 <0.0511
IA-2 0.141 <0.107 <0.0793 <0.0793 <0.0793 <0.0511
IA-3 <0.136 <0.107 <0.0793 <0.0793 <0.0793 <0.0511
IA-4 <0.136 <0.107 <0.0793 <0.0793 <0.0793 <0.0511
IA-5 <0.136 <0.107 <0.0793 <0.0793 <0.0793 <0.0511
IA-6 <0.136 <0.107 <0.0793 <0.0793 <0.0793 <0.0511
OA-1 (background)<0.136 <0.107 <0.0793 <0.0793 <0.0793 <0.0511
U.S. EPA Regional Screening Levels for
Residential Indoor Air 11 0.48 42 42 210 0.17
NOTES:
< = concentration was below the laboratory reporting limit
Table 1
Indoor Air Sampling Results
333 East 200 South
Salt Lake City, Utah
(all concentrations are expressed in micrograms per cubic meter [µg/m3])
Broadway Apartments

Appendix A
Laboratory Report

ANALYTICAL REPORT
April 22, 2023
Revised Report
Wasatch Environmental
Sample Delivery Group:L1605473
Samples Received:04/14/2023
Project Number:
Description:PCE, TCE, cis 1,2-DCE, trans 1,2-DCE, I,1,-DCE and vinyl
chl
Report To:Christopher Nolan, P.G.
2410 West California Avenue
Salt Lake City, UT 84104
Entire Report Reviewed By:
April 22, 2023
[Preliminary Report]
John Hawkins
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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April 23, 2023
John Hawkins
Project Manager
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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
IA-1 L1605473-01 5
IA-2 L1605473-02 6
IA-3 L1605473-03 7
IA-4 L1605473-04 8
IA-5 L1605473-05 9
IA-6 L1605473-06 10
OA-1 L1605473-07 11
Qc: Quality Control Summary 12
Volatile Organic Compounds (MS) by Method TO-15-SIM 12
Gl: Glossary of Terms 13
Al: Accreditations & Locations 14
Sc: Sample Chain of Custody 15
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
IA-1 L1605473-01 Air Vince Stansfield 04/13/23 14:22 04/14/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15-SIM WG2042872 1 04/16/23 16:37 04/16/23 16:37 DAH Mt. Juliet, TN
Collected by Collected date/time Received date/time
IA-2 L1605473-02 Air Vince Stansfield 04/13/23 14:18 04/14/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15-SIM WG2042872 1 04/16/23 17:18 04/16/23 17:18 DAH Mt. Juliet, TN
Collected by Collected date/time Received date/time
IA-3 L1605473-03 Air Vince Stansfield 04/13/23 14:15 04/14/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15-SIM WG2042872 1 04/16/23 17:59 04/16/23 17:59 DAH Mt. Juliet, TN
Collected by Collected date/time Received date/time
IA-4 L1605473-04 Air Vince Stansfield 04/13/23 14:12 04/14/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15-SIM WG2042872 1 04/16/23 18:39 04/16/23 18:39 DAH Mt. Juliet, TN
Collected by Collected date/time Received date/time
IA-5 L1605473-05 Air Vince Stansfield 04/13/23 14:05 04/14/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15-SIM WG2042872 1 04/16/23 19:20 04/16/23 19:20 DAH Mt. Juliet, TN
Collected by Collected date/time Received date/time
IA-6 L1605473-06 Air Vince Stansfield 04/13/23 14:04 04/14/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15-SIM WG2042872 1 04/16/23 20:01 04/16/23 20:01 DAH Mt. Juliet, TN
Collected by Collected date/time Received date/time
OA-1 L1605473-07 Air Vince Stansfield 04/13/23 14:00 04/14/23 09:15
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15-SIM WG2042872 1 04/16/23 20:42 04/16/23 20:42 DAH Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
John Hawkins
Project Manager
Report Revision History
Level II Report - Version 1: 04/21/23 02:49
Project Narrative
rEPRINT FOR 1,1-DCE
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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John Hawkins
Project Manager
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SAMPLE RESULTS - 01
L1605473
IA-1
Collected date/time: 04/13/23 14:22
Volatile Organic Compounds (MS) by Method TO-15-SIM
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0.0200 0.0793 ND ND 1 WG2042872
cis-1,2-Dichloroethene 156-59-2 96.90 0.0200 0.0793 ND ND 1 WG2042872
trans-1,2-Dichloroethene 156-60-5 96.90 0.0200 0.0793 ND ND 1 WG2042872
Tetrachloroethylene 127-18-4 166 0.0200 0.136 ND ND 1 WG2042872
Trichloroethylene 79-01-6 131 0.0200 0.107 ND ND 1 WG2042872
Vinyl chloride 75-01-4 62.50 0.0200 0.0511 ND ND 1 WG2042872
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 115 WG2042872
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1605473
IA-2
Collected date/time: 04/13/23 14:18
Volatile Organic Compounds (MS) by Method TO-15-SIM
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0.0200 0.0793 ND ND 1 WG2042872
cis-1,2-Dichloroethene 156-59-2 96.90 0.0200 0.0793 ND ND 1 WG2042872
trans-1,2-Dichloroethene 156-60-5 96.90 0.0200 0.0793 ND ND 1 WG2042872
Tetrachloroethylene 127-18-4 166 0.0200 0.136 0.0208 0.141 1 WG2042872
Trichloroethylene 79-01-6 131 0.0200 0.107 ND ND 1 WG2042872
Vinyl chloride 75-01-4 62.50 0.0200 0.0511 ND ND 1 WG2042872
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 116 WG2042872
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 03
L1605473
IA-3
Collected date/time: 04/13/23 14:15
Volatile Organic Compounds (MS) by Method TO-15-SIM
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0.0200 0.0793 ND ND 1 WG2042872
cis-1,2-Dichloroethene 156-59-2 96.90 0.0200 0.0793 ND ND 1 WG2042872
trans-1,2-Dichloroethene 156-60-5 96.90 0.0200 0.0793 ND ND 1 WG2042872
Tetrachloroethylene 127-18-4 166 0.0200 0.136 ND ND 1 WG2042872
Trichloroethylene 79-01-6 131 0.0200 0.107 ND ND 1 WG2042872
Vinyl chloride 75-01-4 62.50 0.0200 0.0511 ND ND 1 WG2042872
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 110 WG2042872
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 04
L1605473
IA-4
Collected date/time: 04/13/23 14:12
Volatile Organic Compounds (MS) by Method TO-15-SIM
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0.0200 0.0793 ND ND 1 WG2042872
cis-1,2-Dichloroethene 156-59-2 96.90 0.0200 0.0793 ND ND 1 WG2042872
trans-1,2-Dichloroethene 156-60-5 96.90 0.0200 0.0793 ND ND 1 WG2042872
Tetrachloroethylene 127-18-4 166 0.0200 0.136 ND ND 1 WG2042872
Trichloroethylene 79-01-6 131 0.0200 0.107 ND ND 1 WG2042872
Vinyl chloride 75-01-4 62.50 0.0200 0.0511 ND ND 1 WG2042872
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 114 WG2042872
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 05
L1605473
IA-5
Collected date/time: 04/13/23 14:05
Volatile Organic Compounds (MS) by Method TO-15-SIM
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0.0200 0.0793 ND ND 1 WG2042872
cis-1,2-Dichloroethene 156-59-2 96.90 0.0200 0.0793 ND ND 1 WG2042872
trans-1,2-Dichloroethene 156-60-5 96.90 0.0200 0.0793 ND ND 1 WG2042872
Tetrachloroethylene 127-18-4 166 0.0200 0.136 ND ND 1 WG2042872
Trichloroethylene 79-01-6 131 0.0200 0.107 ND ND 1 WG2042872
Vinyl chloride 75-01-4 62.50 0.0200 0.0511 ND ND 1 WG2042872
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 114 WG2042872
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 06
L1605473
IA-6
Collected date/time: 04/13/23 14:04
Volatile Organic Compounds (MS) by Method TO-15-SIM
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0.0200 0.0793 ND ND 1 WG2042872
cis-1,2-Dichloroethene 156-59-2 96.90 0.0200 0.0793 ND ND 1 WG2042872
trans-1,2-Dichloroethene 156-60-5 96.90 0.0200 0.0793 ND ND 1 WG2042872
Tetrachloroethylene 127-18-4 166 0.0200 0.136 ND ND 1 WG2042872
Trichloroethylene 79-01-6 131 0.0200 0.107 ND ND 1 WG2042872
Vinyl chloride 75-01-4 62.50 0.0200 0.0511 ND ND 1 WG2042872
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 114 WG2042872
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 07
L1605473
OA-1
Collected date/time: 04/13/23 14:00
Volatile Organic Compounds (MS) by Method TO-15-SIM
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0.0200 0.0793 ND ND 1 WG2042872
cis-1,2-Dichloroethene 156-59-2 96.90 0.0200 0.0793 ND ND 1 WG2042872
trans-1,2-Dichloroethene 156-60-5 96.90 0.0200 0.0793 ND ND 1 WG2042872
Tetrachloroethylene 127-18-4 166 0.0200 0.136 ND ND 1 WG2042872
Trichloroethylene 79-01-6 131 0.0200 0.107 ND ND 1 WG2042872
Vinyl chloride 75-01-4 62.50 0.0200 0.0511 ND ND 1 WG2042872
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 103 WG2042872
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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QUALITY CONTROL SUMMARYWG2042872
Volatile Organic Compounds (MS) by Method TO-15-SIM L1605473-01,02,03,04,05,06,07
Method Blank (MB)
(MB) R3914346-3 04/16/23 11:01
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
1,1-Dichloroethene U 0.00921 0.0200
cis-1,2-Dichloroethene U 0.0142 0.0200
trans-1,2-Dichloroethene U 0.00499 0.0200
Tetrachloroethylene U 0.0127 0.0200
Trichloroethylene U 0.00746 0.0200
Vinyl chloride U 0.00765 0.0200
(S) 1,4-Bromofluorobenzene 93.8 60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3914346-1 04/16/23 09:38 • (LCSD) R3914346-2 04/16/23 10:21
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
1,1-Dichloroethene 0.500 0.505 0.501 101 100 70.0-130 0.795 25
cis-1,2-Dichloroethene 0.500 0.504 0.495 101 99.0 70.0-130 1.80 25
trans-1,2-Dichloroethene 0.500 0.493 0.489 98.6 97.8 70.0-130 0.815 25
Tetrachloroethylene 0.500 0.509 0.506 102 101 70.0-130 0.591 25
Trichloroethylene 0.500 0.492 0.485 98.4 97.0 70.0-130 1.43 25
Vinyl chloride 0.500 0.485 0.477 97.0 95.4 70.0-130 1.66 25
(S) 1,4-Bromofluorobenzene 101 94.1 60.0-140
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
ND Not detected at the Reporting Limit (or MDL where applicable).
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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Appendix B
Vapor Barrier Installation Documentation

G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13
G14 G15 G16 G17 G18 G19 G20 G21 G22
G1.5
GA
GB
GD
GE
GC
GF
GH
GJ GJ
M1
MA
MB
M26T1T5
MG MG
ME
TA
TC
TB
TD
T4
ARCHITECTURAL CONCRETE PLANTER,
DRAINS SHALL BE SEPARATE FROM
PERIMETER DRAIN SYSTEM, TYP;
RE: PLUMBING
SYSTEM TRANSITION
4" GRAVEL FILL UNDERNEATH ENTIRETY OF
SLAB ON GRADE, PER GEOTECH REPORT
4" GRAVEL FILL UNDERNEATH ENTIRETY OF
SLAB ON GRADE, PER GEOTECH REPORT
4" GRAVEL FILL UNDERNEATH ENTIRETY OF
SLAB ON GRADE, PER GEOTECH REPORT
SYSTEM TRANSITION
SYSTEM TRANSITION SYSTEM TRANSITION
AREAWAY W/
FLOOR DRAIN
AREAWAY W/
FLOOR DRAIN
AREAWAY W/
FLOOR DRAIN
G1
G23
CONTINUE
DRAINAGE PANEL
1
A701
4
A701
9
A701
6
A701
8
A701
7
A702
1
A701 TYP
11
A701
T2 T3
FOR DETENTION VAULT INFORMATION, RE: A620 1
A702
3
A701
8
A702
8
A702
SIM 1
A701
4
A701
7
A702
7
A702
4
A702
4
A702
4
A702
1
A701
1
A701
4
A701
FOUNDATION DRAINAGE SYSTEM
OBSERVATION PORT; RE: PLUMBING
FOUNDATION DRAINAGE SYSTEM
OBSERVATION PORT; RE: PLUMBING
EQ EQ
SYSTEM
TRANSITION
SYSTEM
TRANSITION
SYSTEM
TRANSITION
SYSTEM
TRANSITION
G11 G12 G13
G14 G15 G16 G17 G18 G19 G20 G21 G22
GA
GB
GD
GE
GC
GF
GH
GJ
MAMA
MB
M26T1T5
MG
ME
TA
TC
TB
TD
T4
ARCHITECTURAL CONCRETE PLANTER,
DRAINS SHALL BE SEPARATE FROM
PERIMETER DRAIN SYSTEM, TYP;
RE: PLUMBING
AREAWAY W/
FLOOR DRAIN
AREAWAY W/
FLOOR DRAIN
G23
2
A702
4
A701
AREAWAY W/
FLOOR DRAIN
T2 T3
4
A702
1
A701
1
A701
3
A702
2
A702
9
A702
10
A701
SIM
11
A701
4
A702
4
A702
4
A701
COORDINATE
WATERPROOFING
TERMINATION
ELEVATION W/
FINISH GRADE
SYSTEM
TRANSITION
BITUMINOUS DAMP
PROOFING
SELF ADHERING SHEET
WATERPROOFING &
DRAINAGE PANELS
LEGEND AND NOTES -WATERPROOFING TYPES
1. INSTALL SELF ADHERING SHEET WATERPROOFING,
DRAINAGE PANELS AND RIGID INSULATION ON EXTERIOR
FACE OF PERIMETER FOUNDATION WALLS THAT
ENCLOSE OCCUPIABLE SPACE.
2. AT RIGID INSULATION LOCATIONS WITH NO DRAINAGE
PANELS AT DRAINAGE PLANE, SEAL OR TAPE RIGID
INSULATION JOINTS
VAPOR RETARDER OVER
4" GRAVEL FILL, WITH
SOIL GAS VAPOR MITIGATION
SYSTEM BELOW SLAB
FOUNDATION RIGID
INSULATION
VERTICAL AND HORIZONTAL
PRE-APPLIED SHEET
MEMBRANE WATERPROOFING
COLD FLUID APPLIED
WATERPROOFING
(AT ARCHITECTURAL
CONCRETE PLANTERS, TYP)
PERFORATED PVC PERIMETER
FOUNDATION DRAINAGE SYSTEM;
RE: PLUMBING
LOW PROFILE PERIMETER
FOUNDATION DRAINAGE SYSTEM;
RE: PLUMBING
5
ARCHITECT'S PROJECT NUMBER CO
P
Y
R
I
G
H
T

©

2
0
1
9

S
T
U
D
I
O

P
B
A
,

I
N
C
/
A
L
L

R
I
G
H
T
S

R
E
S
E
R
V
E
D
SHEET NUMBER
SHEET TITLE
KEY PLAN
CURRENT PHASE
ISSUE DATE
SLC PERMIT SHEET NUMBER
8/
5
/
2
0
1
9

1
0
:
1
4
:
2
9

A
M
A101.00
FOUNDATION WATER &
DAMP PROOFING
COTTONWOOD BROADWAY
FIRE ADDRESS BUILDING 1 (MAIN): 325 EAST 300 SOUTH
FIRE ADDRESS BUILDING 2 (SUB) : 340 EAST 200 SOUTH
SALT LAKE CITY, UT 84111
CR16001
ISSUED FOR
CONSTRUCTION
08/05/2019
6340 South 3000 East Suite 500
Salt Lake City, UT 84121 ph: 801-278-0700
3100
N 1" = 20'-0"A101.00
1 LEVEL 1 - WATER/DAMP PROOFING DIAGRAM
N 1" = 20'-0"A101.00
2 LEVEL 2 - WATER/DAMP PROOFING DIAGRAM
FOR CONCRETE SLAB SEALER AND
TRAFFIC COATING LOCATIONS,
RE: ENLARGED SLAB PLANS
FOR CONCRETE SLAB SEALER AND
TRAFFIC COATING LOCATIONS,
RE: ENLARGED SLAB PLANS
1
No.Description Date
1 BUILDING PERMIT COMMENTS #1 9/18/2018
5 AS1#01, DOCUMENT COORD. 8/05/2019
5
5
5
5
5
Photo 1. Taping penetrations Photo 2. Vapor barrier
Photo 3. Taping to walls Photo 4. Taping seam overlap
Photo 5. Arrows indicating subslab venting pipes Photo 6. Vent along ground floor wall
Photo 7. Vent penetrating second floor Photo 8. Termination of subslab vent pipes on roof