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Home My WebLink AboutDERR-2025-005254Summary Report for April 2023 Indoor Air Sampling Event The Shops at Fort Union (formerly Fort Union Family Center) Fort Union Boulevard Midvale, Utah Prepared for: Site Centers 3300 Enterprise Parkway Beachwood, OH 44122 Prepared by: Stantec Consulting Services Inc. 2890 East Cottonwood Parkway Suite 300 Salt Lake City UT, 84121 Project No.: 203706007 June 15, 2023 Sign-off Sheet and Signatures of Environmental Professionals V//230706007/05-reports/delivs/2023/aprSumRept The conclusions in this Report are Stantec’s professional opinion, as of the time of the Report, and concerning the scope described in the Report. The opinions in the document are based on conditions and information existing at the time the scope of work was conducted and do not take into account any subsequent changes. The Report relates solely to the specific project for which Stantec was retained and the stated purpose for which the Report was prepared. The Report is not to be used or relied on for any variation or extension of the project, or for any other project or purpose, and any unauthorized use or reliance is at the recipient’s own risk. Stantec has assumed all information received from Site Centers (the “Client”) and third parties in the preparation of the Report to be correct. While Stantec has exercised a customary level of judgment or due diligence in the use of such information, Stantec assumes no responsibility for the consequences of any error or omission contained therein. This Report is intended solely for use by the Client in accordance with Stantec’s contract with the Client. While the Report may be provided by the Client to applicable authorities having jurisdiction and to other third parties in connection with the project, Stantec disclaims any legal duty based upon warranty, reliance or any other theory to any third party, and will not be liable to such third party for any damages or losses of any kind that may result. Prepared by: John G. Russell, III, CPG Sr. Hydrogeologist, Environmental Risk Manager Utah-Licensed Professional Geologist 5216074-2250 Reviewed by: Rich Pratt Sr. Environmental Technician SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT V//230706007/05-reports/delivs/2023/aprSumRept i Table of Contents 1.0 EXECUTIVE SUMMARY .................................................................................................1.1 2.0 JANUARY 24, 2023 INDOOR AIR SAMPLING EVENT ...................................................2.1 2.1 SAMPLING PROTOCOL ............................................................................................... 2.1 2.2 ANALYTICAL RESULTS .................................................................................................. 2.1 3.0 QUALITY ASSURANCE AND QUALITY CONTROL ........................................................3.1 3.1 SAMPLE REQUIREMENTS, CONTAINERS, AND PRESERVATION .................................. 3.1 3.2 CHAIN-OF-CUSTODY, HOLDING TIME, AND RECORD KEEPING ............................... 3.1 3.3 CROSS-CONTAMINATION .......................................................................................... 3.1 3.4 DATA QUALITY INDICATORS AND QA/QC SAMPLES ................................................ 3.1 4.0 RECOMMENDATIONS ..................................................................................................4.1 LIST OF FIGURES Figure 1 General Site Location, Topographic Map Figure 2 General Site Location Map, Aerial Image Figure 3 Plan-View Map of Tenant Suites LIST OF TABLES Table 1 Indoor Air Sampling Analytical Results Table 2 Historical Indoor Air Sampling Analytical Results LIST OF APPENDICES Appendix A Copy of ALS’ Air Sampling Laboratory Result Report SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT EXECUTIVE SUMMARY June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept 1.1 1.0 EXECUTIVE SUMMARY On behalf of Site Centers, Stantec has prepared this report to present the results of the April 27, 2023 indoor air sampling field activities and analytical results associated with sampling of eight of the 11 suites located at The Shops at Ft. Union in Midvale, Utah. Reference Figures 1 and 2 for general and site-specific, location maps. Figure 3 identifies individual tenant suites located within the shopping mall area, including suite #34 a former dry cleaning operation. As agreed between Stantec and the Utah Department of Environmental Quality, Voluntary Cleanup Program (UDEQ, VCP), two of the 11 suites that were sampled historically were not sampled as part of the April 2023 sampling event. Suites #52 (ULTA) and #56 (Smiths Food and Drug) were not sampled during this specific sampling event since all analyte concentrations were below corollary United States Environmental Protection Agency (US EPA) Commercial Indoor Air Vapor Intrusion Screening Levels (VISLs) during recent sampling events. The UDEQ noted that both suites may require sampling as part of final VCP site closure proceedings. Suite #36 (Family Shoe Repair) was not sampled on April 27th because the suite was locked and a posting indicated that the business was no longer operating and was ‘closed.’ Upon arrival at the mall on April 27th, Stantec was unaware of Suite #36’s closure and had no means of accessing the interior of the suite. During the next sampling event, Stantec will secure means for access into the suite from the property owner in advance of sampling activities. Each indoor air sample was analyzed for the following Volatile Organic Compounds (VOCs) by Method TO-15 Selected Ion Monitoring (SIM): tetrachloroethylene (aka, perchloroethylene, ‘PERC’, or PCE) and possible PCE degradative byproducts trichloroethylene (TCE); cis- and trans- dichloroethylene (cis/trans-DCE); 1,2-dichloroethane (1,2-DCA); and vinyl chloride. Table 1 presents recent indoor air results associated with laboratory Method TO-15 SIM analyses, including the April 2023 results. Table 2 includes historical indoor air results associated with VOC analysis by standard Method TO-15, which includes numerous other VOC constituents besides PCE and its degradative byproducts. The UDEQ, VCP and Site Centers agreed that indoor air sampling events conducted after the March 2017 sampling event would be performed for PCE and its five degradative byproducts by the SIM method, in order for the laboratory to lower its Method Detection and Reporting Limits to satisfy corollary US EPA Commercial Indoor Air VISL concentrations of low micrograms per cubic meter (i.e., µg/m3). In summary, all analyte concentrations were below corollary VISLs for the first time to date. PCE and TCE were detected in Suite #34 (former dry cleaner); however, both concentrations were less than concentrations detected during the January 2023 sampling event. TCE was detected in all suites except #42 (former Melty Way) and #50 (Office Max). TCE concentrations increased in concentration at Suites #40 (Mail Center), #44 (Sams) and #46 (Sally Beauty) but decreased SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT EXECUTIVE SUMMARY June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept 1.2 elsewhere, when compared to the January 2023 sampling event. 1,2-DCA was detected in Suite #44 (Sams) but at a concentration that was less than that detected during the January 2023 sampling event. Trans-1,2-DCE was detected in Suite #38 (About Time) but less than that detected during the January 2023 sampling event. SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT APRIL 2023 INDOOR AIR SAMPLING EVENT June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept 2.1 2.0 APRIL 2023 INDOOR AIR SAMPLING EVENT 2.1 SAMPLING PROTOCOL On April 27, 2023, Stantec collected indoor air samples from eight of the 11 suites sampled in the past and most recently during January 2023. Stantec collected indoor air samples at similar locations and in similar fashion as previous sampling events, including hand-delivery of the samples to the laboratory on the afternoon of April 28, 2023. Each indoor air sample was collected in a 6-liter, stainless-steel, individually-certified, summaTM canister, equipped with a laboratory-certified, 8-hour flow rate regulator that was provided by ALS Laboratories of Salt Lake City, Utah. Sampling locations within each suite were similar to historical sampling locations, typically representative of areas where tenant employees spend the majority of their workday, such as registers, office desks, workstations, etc. Sample canisters were located atop the floor at each location, thereby representing a low-elevation, sampling point within each suite. Each summa canister was labeled and hand-delivered to ALS for quantitative analysis of PCE; TCE; cis- and trans-1,2-DCE; 1,2-DCA; and vinyl chloride by the TO- 15 SIM analytical methodology. 2.2 ANALYTICAL RESULTS Table 1 provides a summary of the analytical results associated with the April 27th sampling event, while historical TO-15 VOC data are presented in Table 2. A copy of the April 2023 laboratory result report is attached in Appendix A. All analyte concentrations were below corollary VISLs for the first time to date. PCE and TCE were detected in Suite #34 (former dry cleaner); however, both concentrations were less than concentrations detected during the January 2023 sampling event, respectively. TCE was detected in all suites except #42 (former Melty Way) and #50 (Office Max). TCE concentrations increased in concentration at Suites #44 (Sams) and #46 (Sally Beauty) but decreased elsewhere, when compared to the January 2023 sampling event. 1,2-DCA was detected in Suite #44 (Sams) but at a concentration that was less than that detected during the January 2023 sampling event. Trans-1,2-DCE was detected in Suite #38 (About Time) but less than that detected during the January 2023 sampling event. SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT QUALITY ASSURANCE AND QUALITY CONTROL June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept 3.1 3.0 QUALITY ASSURANCE AND QUALITY CONTROL The following sections discuss the Quality Assurance/Quality Control (QA/QC) measures utilized during the indoor air sampling event. 3.1 SAMPLE REQUIREMENTS, CONTAINERS, AND PRESERVATION All summa canisters and dedicated regulators were provided and certified by the laboratory. All summa canisters were hand-delivered by Stantec staff to the laboratory the day following sample collection. 3.2 CHAIN-OF-CUSTODY, HOLDING TIME, AND RECORD KEEPING Chain-of-Custody, sample labeling, and record keeping procedures were in accordance with measures used previously and are deemed adequate for the objectives of the project. The sample canisters remained in secure custody of the sampler until hand-delivery to the laboratory. Samples were analyzed within prescribed Holding Times and the results are deemed adequate for use. In summary, the results are deemed satisfactory and useable for this investigation. 3.3 CROSS-CONTAMINATION All summaTM canisters were provided by the laboratory, and each canister and regulator were individually-cleaned and certified, prior to sample collection. Stantec’s sampler wore nitrile gloves during sampling activities. 3.4 DATA QUALITY INDICATORS AND QA/QC SAMPLES Laboratory data reporting requisites appear to be valid and reflect adequate precision, accuracy, representativeness, completeness, and comparability (PARCC) and to be otherwise adequate for their intended use. Stantec’s review of ALS’ Quality Control Sample Batch Report and ALS’ laboratory result report indicated no issues related to potential QA/QC concerns. SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT RECOMMENDATIONS June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept 4.1 4.0 RECOMMENDATIONS We propose that indoor air samples be collected during July 2023, including Suite #36 (Shoe Repair) that was not sampled in April 2023. Stantec proposes that no further indoor air samples be collected from within suites #52 (ULTA), #56 (Smiths), and #50 (Office Max) given the recent and historical VOC results and fact that indoor air quality within these specific suites has satisfied corollary VISLs during at least the past two consecutive sampling events. SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT FIGURES June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept Figure 1 General Site Location, Topographic Map SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT FIGURES June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept Figure 2 General Site Location Map, Aerial Image Design by Revised by Figure 2 – General Site Location Map LEGEND The Shops at Fort Union Date Revised JR JR 8/20/13 CH-1 CH-4 CH-3 CH-2 Not to Scale Generalized, Outer Perimeter of Property Comprising The Shops at Ft. Union Generalized, Areal Extent of VCP Subject Site SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT FIGURES June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept Figure 3 Plan-View Map of Tenant Suites Design by Revised by Figure 3 – Tenant Suites LEGEND The Shops at Fort Union Date Revised JR JR 8/21/13 CH-1 CH-4 CH-3 CH-2 Not to Scale Tenant Suite # Tenant Name (Aug. 2013) Square Feet (sq. ft.) GN DC SR AT MC MWJD FSSB OM US SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT TABLES June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept Table 1 January 2023 Indoor Air Analytical Results Tetrachloroethene (PCE)Vinyl chloride trans-1,2- Dichloroethene** cis- 1,2-Dichloroethene** 1,2- Dichloroethane Trichloroethene (TCE) GN 04/27/23 < 0.34 <0.13 <0.20 <0.20 < 0.20 0.33 GN 01/25/23 0.43 <0.13 <0.20 <0.20 0.25 0.95 GN 10/07/22 <0.34 <0.13 <0.20 <0.20 < 0.2 29.0 GN 06/29/22 <0.34 <0.13 <0.20 <0.20 0.26 1.5 GN 11/21/19 <0.34 <0.13 <0.20 <0.20 0.62 280 GN 05/09/19 0.41 <0.13 <0.20 <0.20 0.97 960.0 GN 06/07/18 0.67 <0.13 <0.20 <0.20 0.29 3.0 GN 03/20/18 0.56 <0.13 <0.20 <0.20 0.27 58.0 Indoor-GN 12/05/17 0.82 <0.13 <0.20 <0.20 <0.20 8.3 Indoor-GN 08/10/17 0.60 <0.13 <0.20 <0.20 <0.20 6.1 DC 04/27/23 0.39 < 0.13 < 0.20 <0.20 <0.20 0.70 DC 01/25/23 0.68 < 0.13 0.23 <0.20 <0.20 0.97 DC 10/07/22 0.41 <0.13 <0.2 < 0.2 0.74 160.0 DC 06/29/22 <0.34 0.15 0.20 <0.20 0.59 7.7 DC 11/21/19 <0.34 <0.13 <0.20 <0.20 0.69 240 DUP 11/21/19 <0.34 <0.13 <0.20 <0.20 0.61 270 DUP 05/09/19 0.50 <0.13 0.32 <0.20 2.6 2500 DC 05/09/19 0.54 <0.13 0.29 <0.20 3.1 3000 DUP 06/07/18 0.84 <0.13 <0.20 <0.20 2.6 31 DC 06/07/18 0.93 <0.13 <0.20 <0.20 2.0 25 DC-DUP 03/20/18 1.3 <0.13 <0.20 <0.20 9.6 180 DC 03/20/18 0.54 <0.13 <0.20 <0.20 0.75 150 DC-DUP 03/20/18 0.47 <0.13 <0.20 <0.20 0.61 160 DUP 12/06/17 <0.34 <0.13 <0.20 <0.20 0.93 59 Indoor-DC 12/06/17 0.36 <0.13 <0.20 <0.20 <0.20 76 DUP 08/10/17 0.66 0.22 <0.20 <0.20 0.49 30 Indoor-DC 08/10/17 0.60 0.22 <0.20 <0.20 2.3 480 SR 04/27/23 SR 01/25/23 0.84 < 0.13 0.28 <0.20 2.40 2.20 SR 10/07/22 0.50 < 0.13 < 0.20 < 0.20 0.95 150 SR 06/29/22 0.84 < 0.13 0.51 <0.20 < 0.20 45 SR 11/21/19 0.54 <0.13 0.78 <0.20 2.3 480 SR 05/09/19 0.65 <0.13 1.80 <0.20 8.1 3,100 SR 06/07/18 1.3 <0.13 <0.20 <0.20 9.6 180 SR 03/20/18 0.4 <0.13 <0.20 <0.20 2.6 460 Indoor-SR 12/05/17 1.8 <0.13 <0.20 <0.20 0.96 11 Indoor-SR 08/10/17 2.1 <0.13 <0.20 <0.20 8.9 75 Table 1 Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah ` Sa m p l e I D Da t e C o l l e c t e d PCE and By-Product VOCs* - Single Ion Mode-SIM Micrograms per cubic-meter (µg/m3) Suite #32 Groovy Nails Suite #34 Former Ft. Union Dry Cleaners Suite #36 Family Shoe Repair Tenant operations were posted: 'Closed' Tetrachloroethene (PCE)Vinyl chloride trans-1,2- Dichloroethene** cis- 1,2-Dichloroethene** 1,2- Dichloroethane Trichloroethene (TCE) Table 1 Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah ` Sa m p l e I D Da t e C o l l e c t e d PCE and By-Product VOCs* - Single Ion Mode-SIM Micrograms per cubic-meter (µg/m3) AT 04/27/23 < 0.34 <0.13 0.25 <0.20 < 0.20 2.80 AT 01/25/23 < 0.34 <0.13 0.90 <0.20 < 0.20 9.80 AT 10/07/22 < 0.34 < 0.13 1.40 < 0.20 0.21 19 AT 06/29/22 < 0.34 <0.13 4.30 <0.20 0.28 22 AT 11/21/19 0.74 <0.13 <0.20 <0.20 0.27 25 AT 05/09/19 0.36 <0.13 <0.20 <0.20 1.20 850 AT 06/07/18 0.67 <0.13 <0.20 <0.20 0.67 55 AT 03/20/18 0.49 <0.13 <0.20 <0.20 0.53 180 Indoor-AT 12/06/17 0.51 <0.13 <0.20 <0.20 0.44 2,200 Indoor-AT 08/10/17 0.50 <0.13 <0.20 <0.20 0.33 290 Suite #38 It's All About Time Tetrachloroethene (PCE)Vinyl chloride trans-1,2- Dichloroethene** cis- 1,2-Dichloroethene** 1,2- Dichloroethane Trichloroethene (TCE) Table 1 Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah ` Sa m p l e I D Da t e C o l l e c t e d PCE and By-Product VOCs* - Single Ion Mode-SIM Micrograms per cubic-meter (µg/m3) MC 04/27/23 < 0.34 < 0.13 <0.20 <0.20 < 0.20 1.20 MC 01/25/23 < 0.34 < 0.13 <0.20 <0.20 < 0.20 0.44 MC 10/07/22 0.47 < 0.13 < 0.20 < 0.20 0.36 5.60 MC 06/29/22 <0.34 0.13 <0.20 <0.20 0.58 0.73 MC 11/21/19 <0.34 <0.13 <0.20 <0.20 <0.20 1.0 MC 05/09/19 0.86 <0.13 <0.20 <0.20 0.51 160.0 MC 06/07/18 0.91 <0.13 <0.20 <0.20 0.85 7.9 MC 03/20/18 0.95 <0.13 <0.20 0.46 <0.20 1.3 Indoor-MC 12/05/17 1.7 <0.13 <0.20 <0.20 <0.20 1.8 Indoor-MC 08/10/17 0.80 0.19 <0.20 <0.20 0.80 21 MWJD 04/27/23 < 0.34 < 0.13 <0.20 <0.20 < 0.20 < 0.27 MWJD 01/25/23 < 0.34 < 0.13 <0.20 <0.20 0.26 < 0.27 MWJD 10/07/22 < 0.34 < 0.13 <0.20 <0.20 < 0.20 1.0 MWJD 06/29/22 < 0.34 0.25 <0.20 <0.20 0.67 <0.27 MWJD 11/21/19 0.34 <0.13 <0.20 <0.20 <0.20 <0.27 MWJD 05/09/19 0.34 <0.13 <0.20 <0.20 0.81 60.0 MWJD 06/07/18 0.60 0.17 <0.20 <0.20 1.10 3.4 MWJD 03/20/18 < 0.34 <0.13 <0.20 <0.20 <0.20 < 0.27 Indoor-MWJD 12/05/17 0.44 <0.13 <0.20 <0.20 <0.20 1.2 Indoor-MWJD 08/10/17 0.40 0.32 <0.20 <0.20 0.69 4.0 FS 04/27/23 <0.34 < 0.13 <0.20 <0.20 0.23 0.45 FS 01/25/23 <0.34 < 0.13 <0.20 <0.20 0.25 0.36 FS 10/07/22 <0.34 0.25 <0.20 <0.20 0.64 3.6 FS 06/29/22 <0.34 0.25 <0.20 <0.20 0.83 0.3 FS 11/21/19 <0.34 <0.13 <0.20 <0.20 0.28 1.4 FS 05/09/19 0.54 0.21 <0.20 <0.20 1.0 110.0 FS 06/07/18 1.2 0.18 <0.20 <0.20 1.6 6.0 FS 03/20/18 0.5 <0.13 <0.20 <0.20 0.7 0.6 Indoor-FS 12/05/17 0.56 <0.13 <0.20 <0.20 <0.20 3.4 Indoor-FS 08/10/17 2.6 0.49 <0.20 <0.20 1.5 6.1 SB 04/27/23 <0.34 <0.13 <0.20 <0.20 < 0.20 0.30 SB 01/25/23 <0.34 <0.13 <0.20 <0.20 0.20 < 0.27 SB 10/07/22 <0.34 <0.13 <0.20 <0.20 0.46 2.80 SB 06/29/22 <0.34 <0.13 <0.20 <0.20 0.63 < 0.27 SB 11/21/19 <0.34 <0.13 <0.20 <0.20 0.30 0.80 SB 05/09/19 0.69 0.19 <0.20 <0.20 1.8 92.0 SB 06/07/18 0.76 0.23 <0.20 <0.20 1.3 5.5 SB 03/20/18 0.36 <0.13 <0.20 <0.20 1.50 0.51 Indoor-SB 12/05/17 1.2 <0.13 <0.20 <0.20 <0.20 1.7 Indoor-SB 08/10/17 0.56 0.28 <0.20 <0.20 0.87 5.5 Suite #42 MW-JD Suite #40 The Mail Center Suite #44 Fantastic Sam's Suite #46 Sally Beauty Supply Tetrachloroethene (PCE)Vinyl chloride trans-1,2- Dichloroethene** cis- 1,2-Dichloroethene** 1,2- Dichloroethane Trichloroethene (TCE) Table 1 Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah ` Sa m p l e I D Da t e C o l l e c t e d PCE and By-Product VOCs* - Single Ion Mode-SIM Micrograms per cubic-meter (µg/m3) OM 04/27/23 < 0.34 < 0.13 < 0.20 < 0.20 < 0.21 < 0.27 OM 01/25/23 < 0.34 < 0.13 < 0.20 < 0.20 < 0.21 < 0.27 OM 10/07/22 < 0.34 < 0.13 < 0.20 < 0.20 0.21 4.40 OM 06/29/22 < 0.34 < 0.13 < 0.20 < 0.20 < 0.20 < 0.27 OM 11/21/19 0.50 <0.13 <0.20 <0.20 0.36 1.10 OM 05/09/19 0.75 <0.13 <0.20 <0.20 1.90 51.00 OM 06/07/18 0.55 <0.13 <0.20 <0.20 0.48 0.52 OM 03/20/18 < 0.34 <0.13 <0.20 <0.20 <0.20 0.58 Indoor-OM 12/06/17 0.56 <0.13 <0.20 <0.20 <0.20 6.0 Indoor-OM 08/10/17 0.47 <0.13 <0.20 <0.20 0.27 2.4 Suite #50 Office Max Tetrachloroethene (PCE)Vinyl chloride trans-1,2- Dichloroethene** cis- 1,2-Dichloroethene** 1,2- Dichloroethane Trichloroethene (TCE) Table 1 Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah ` Sa m p l e I D Da t e C o l l e c t e d PCE and By-Product VOCs* - Single Ion Mode-SIM Micrograms per cubic-meter (µg/m3) U 04/27/23 U 01/25/23 <0.34 <0.13 <0.20 <0.20 <0.20 < 0.27 U 10/07/22 <0.34 <0.13 <0.20 <0.20 <0.20 < 0.27 U 06/29/22 <0.34 <0.13 <0.20 <0.20 <0.20 < 0.27 U 11/21/19 <0.34 <0.13 <0.20 <0.20 <0.20 3.2 U 05/09/19 <0.34 <0.13 <0.20 <0.20 0.47 1.8 U 06/07/18 <0.34 <0.13 <0.20 <0.20 0.25 <0.27 U 03/20/18 0.34 <0.13 <0.20 <0.20 <0.20 0.35 Indoor-U 12/06/17 <0.34 <0.13 <0.20 <0.20 <0.20 0.30 Indoor-U 08/10/17 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27 S 04/27/23 S 01/25/23 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27 S 10/07/22 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27 S 06/29/22 <0.34 <0.13 <0.20 <0.20 0.29 <0.27 S 11/21/19 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27 S 05/09/19 <0.34 <0.13 <0.20 <0.20 <0.20 1.9 S 06/07/18 0.81 <0.13 <0.20 <0.20 0.22 <0.27 S 03/20/18 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27 Indoor-S 12/05/17 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27 Indoor-S 08/10/17 <0.34 <0.13 <0.20 <0.20 <0.20 <0.27 47.00 2.79 NE NE 0.47 2.99 https://www.epa.gov/vaporintrusion/vapor-intrusion-screening-level-calculator NE - Not Established; NS: Not Sampled *VOCs - Volatile Organic Compounds. **US EPA has no VISL, currently – will coordinate risk-based VISLs with UDEQ when warranted. Values in bold indicate concentrations above respective VISLs. VISL = US EPA Nov. 2022 Commercial, Indoor Vapor Intrusion Screening Level, THQ=1 (ug/m3), Target Risk Level of 1E-06. VISL online calculator used to generate these VISLs: Suite #52 Ulta Beauty Suite #56 Smith's Food and Drug VISL NS NS SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT TABLES June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept Table 2. Historical Indoor Air Analytical Results Te t r a c h l o r o e t h e n e Di c h l o r o d i f l u o r o me t h a n e Ch l o r o m e t h a n e Vi n y l c h l o r i d e Fr e o n 1 1 Fr e o n 1 1 3 Ac e t o n e Ca r b o n d i s u l f i d e Me t h y l e n e ch l o r i d e 2- B u t a n o n e ci s - 1 , 2 - Di c h l o r o e t h e n e Et h y l A c e t a t e He x a n e Ch l o r o f o r m Te t r a h y d r o f u r a n 1, 2 - Di c h l o r o e t h a n e Ca r b o n te t r a c h l o r i d e Be n z e n e Cy c l o h e x a n e Tr i c h l o r o e t h e n e 1, 2 - Di c h l o r o p r o p a n e He p t a n e 4- M e t h y l - 2 - pe n t a n o n e To l u e n e Et h y l B e n z e n e m, p - X y l e n e o- X y l e n e St y r e n e 4- E t h y l t o l u e n e 1, 3 , 5 - Tr i m e t h y l b e n z e n e 1, 2 , 4 - Tr i m e t h y l b e n z e n e 1, 4 - Di c h l o r o b e n z e n e 1, 2 - Di c h l o r o b e n z e n e Indoor-GN 3/22/17 <1.0 1.5 0.7 <0.38 0.9 <1.1 7500 <0.47 2.4 510 <0.59 2,400 <0.53 2.1 <0.44 <0.61 <0.94 2.3 140 5 <0.73 15 0.6 420 1.3 5.1 1.3 <1.3 <1.5 <1.5 <1.5 <1.8 1.8 Indoor-GN 12/9/16 <1.0 0.9 0.8 <1.0 1.1 <1.1 950 <0.47 1.5 150 <0.59 4,300 19 2.7 <0.44 <0.61 <0.94 3.2 31 12 <0.73 27 0.7 86 1.7 6.4 1.9 0.96 1.3 1.3 2.7 <0.90 <1.8 Indoor-GN 10/13/16 <1.0 1.8 <0.31 <0.38 1.3 <1.1 5500 <0.47 <0.52 36 <0.59 700 25 2.8 <0.44 <0.61 <0.94 1.3 2.3 10 <0.73 6.4 <0.61 74 1.1 3.8 1.2 <0.64 <0.74 <0.74 1.0 <0.90 <1.8 Indoor-GN 6/29/16 1.0 1.3 1.2 <0.38 1.1 <1.1 12000 <0.47 2.8 92 <0.59 960 10 3.5 <0.44 <0.61 <0.94 0.61 1.2 3.5 <0.73 14 1.2 34 0.75 2.0 <0.65 1.2 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-GN 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 8600 <4.7 <5.2 83 <5.9 750 190 <7.3 <4.4 <6.1 <9.4 <4.8 9.3 <8.1 <7.3 28 <6.1 310 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-GN 12/2/15 <10 <7.4 <3.1 <3.8 <8.4 <11 12000 <4.7 <5.2 62 <5.9 460 23 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 47 <6.5 7.9 <6.5 <6.4 <4.7 <7.4 <7.4 <9.0 <18 Indoor-GN 8/14/15 1.5 3.2 1.7 <0.38 1.7 2.7 1200 0.54 1.8 190 <0.59 520 <0.53 2.80 <0.44 <0.61 <0.94 1.5 1.9 7.9 <0.73 3.6 <0.61 67 1.3 3.3 1.1 2.0 <0.74 <0.74 1.1 <0.90 <1.8 Indoor-GN 5/7/15 1.3 3.4 1.7 <0.38 4.3 2.5 7800 <0.47 6.5 150 <0.59 620 190 <0.73 <0.44 <0.61 <0.94 0.9 6.5 1.3 <0.73 4.5 1.7 260 1.6 4.6 1.5 1.7 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-GN 2/5/15 1.7 2.1 1.1 <0.38 1.3 <1.1 660 <0.47 2.7 91 <0.59 530 110 0.95 <0.44 <0.20 <0.94 1.2 8.6 <0.81 <0.73 4.2 <0.61 200 1.1 3.5 1.1 1.2 <0.74 <0.74 1.0 <0.90 <1.8 Indoor-GN 9/9/14 2.5 2.7 1.3 <0.38 1.6 <0.11 6700 <0.47 3.4 81 <0.59 410 10 1.10 <0.44 <0.61 <0.94 1.3 2.5 <0.81 <0.73 3.8 1.1 29 1.6 5.1 1.7 1.6 <0.74 <0.74 1.8 <0.90 <1.8 Indoor-GN 5/29/14 1.5 2.6 1.2 <0.38 1.0 <1.1 4400 <0.47 4.8 51 <0.59 450 85 <0.73 <0.44 <0.61 <0.94 19 51 <0.81 <0.73 37 <0.61 72 3.7 17 4.7 <0.64 1.0 0.84 3.7 <0.90 <1.8 Indoor-GN 2/11/14 420 <7.4 <3.1 <3.8 <8.4 <11 14000 <4.7 5.4 63 <5.9 330 160 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 260 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-GN 9/3/13 1700 2.2 1.1 <0.38 1.7 <1.1 12000 0.82 1.6 80 <0.59 890 2.4 <0.73 2.00 <0.61 <0.94 0.64 <0.52 <0.81 <0.73 7.5 <0.61 28 0.76 2.0 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 DUP-1 3/22/17 <1.0 2.3 1.2 <0.38 1.2 <1.1 760 <0.47 2.1 11 <0.59 <1.1 15 <0.73 <0.44 <0.61 <0.94 <0.48 210 7.8 <0.73 18 <0.61 460 <0.65 1.9 <0.65 <1.3 <1.5 <1.5 <1.5 <1.8 <1.8 Indoor-DC 3/22/17 <1.0 2.6 1.1 <0.38 1.3 <1.1 930 <0.47 1.7 13 <0.59 <1.1 18 <0.73 <0.44 <0.61 <0.94 <0.48 240 4.3 <0.73 23 <0.61 570 0.66 2.6 0.67 <1.3 <1.5 <1.5 <1.5 <1.8 <1.8 DUP-1 12/9/16 1.4 2.5 1.3 0.38 1.9 <1.1 1000 <0.47 3.2 20 <0.59 86 25 <0.73 <0.44 <0.61 <0.94 1.9 63 19 <0.73 31 0.9 150 0.98 4.2 1.6 0.9 2.2 2.6 5.1 <0.90 <1.8 Indoor-DC 12/9/16 1.4 2.6 1.5 0.39 2.7 1.5 1100 <0.47 3.5 20 <0.59 94 25 0.89 0.52 0.69 0.95 2.6 67 22 <0.73 31 1.3 160 1.5 5.7 2.2 1.4 3.0 3.3 6.2 1.1 <1.8 DUP-1 10/13/16 <1.0 2.5 1.0 <0.38 1.9 <1.1 2900 <0.47 1.5 51 <0.59 140 130 1.1 <0.44 <0.61 <0.94 1.5 33 35 <0.73 23 1.6 240 1.9 6.2 2.1 2.3 <0.74 0.9 2.5 <0.90 2.2 Indoor-DC 10/13/16 <1.0 2.2 0.9 <1.0 1.8 <1.1 3300 <0.47 1.2 60 <0.59 160 150 1.2 <0.44 <0.61 <0.94 1.5 40 46 <0.73 27 1.7 300 2.0 6.7 2.2 2.4 <0.74 0.9 2.5 <0.90 2.5 DUP-1 6/29/16 1.3 2.8 1.7 <0.38 1.4 <1.1 240 0.60 12 7.2 <0.59 34 67 <0.34 <0.44 <0.61 <0.94 0.58 8.1 9.7 <0.73 34 1.7 120 0.98 2.6 0.90 1.9 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-DC 6/29/16 1.2 2.6 1.9 <0.38 1.2 <1.1 510 <0.47 8.9 7.3 <0.59 35 62 <0.73 <0.44 <0.61 <0.94 <0.48 6.4 8.6 <0.73 27 1.7 130 0.92 2.4 0.85 2.0 <0.74 <0.74 0.90 <0.90 <1.8 DUP-1 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 1200 <4.7 5.9 63 <5.9 84 570 <7.3 <4.4 <6.1 <9.4 <4.8 24 <8.1 <7.3 36 <6.1 830 <6.5 7.4 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-DC 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 960 <4.7 6.1 14 <5.9 82 640 <7.3 <4.4 <6.1 <9.4 <4.8 25 <8.1 <7.3 19 <6.1 900 <6.5 6.8 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 DUP-1 12/2/15 <1.0 2.1 1.0 <0.38 1.1 <1.1 510 <0.47 0.96 12 <0.59 31 54 <0.73 0.53 <0.61 <0.94 1.5 10 4.9 <0.73 2.8 <0.61 73 0.87 3.9 1.3 <0.64 <0.74 <0.74 1.3 <0.90 <1.8 Indoor-DC 12/2/15 1.3 2.2 0.96 <0.38 1.2 <1.1 890 <0.47 0.96 17 <0.59 58 55 <0.73 0.86 <0.61 <0.94 1.8 12 8.1 <0.73 3.2 <0.61 75 1.1 4.7 1.6 0.73 <0.74 <0.74 1.7 <0.90 <1.8 DC 8/14/15 2.0 3.2 1.3 <0.38 1.2 <1.1 540 <0.47 2.4 15 <0.59 61 13 <0.73 <0.44 0.63 <0.94 0.61 1.4 26.0 <0.73 4.3 <0.61 28 1.60 3.6 1.30 3.10 <0.74 <0.74 1.6 <0.90 <1.8 OC DUP 8/14/15 1.5 3.5 1.6 <0.38 1.3 <1.1 310 <0.47 3.7 9.6 <0.59 36 19 <0.73 <0.44 <0.67 <0.94 0.65 <0.52 30.0 <0.73 5.1 <0.61 30 1.60 3.3 1.20 3.20 <0.74 <0.74 1.3 <0.90 <1.8 Indoor-DC 5/7/15 1.4 3.2 1.3 <0.38 1.8 1.2 780 0.94 11.0 44 <0.59 61 540 <0.73 <0.44 1.20 <0.94 0.6 16 2.8 <0.73 7.8 0.8 600 2.10 6.3 2.00 2.40 <0.74 <0.74 0.8 <0.90 <1.8 DUP-DC 5/7/15 1.3 2.8 1.1 <0.38 1.5 <1.1 640 <0.47 7.9 30 <0.59 51 430 <0.73 <0.44 <0.61 <0.94 0.6 12 1.8 <0.73 6.4 <0.61 540 1.80 5.6 1.80 2.10 <0.74 <0.74 0.8 <0.90 <1.8 Indoor-DC 2/5/15 1.4 3.0 1.3 <0.38 1.8 <1.1 370 <0.47 3.0 26 <0.59 <0.54 140 0.39 <0.44 <0.20 <0.94 1.1 15 <0.81 <0.73 3.0 <0.61 260 0.82 3.4 0.90 0.89 <0.74 <0.74 0.83 <0.90 <1.8 Indoor-DC 9/9/14 2.3 2.9 1.3 <0.38 1.4 <1.1 130 0.52 1.2 5.7 <0.59 16 10 <0.73 <0.44 <0.61 <0.94 0.70 1.6 <0.81 <0.73 5.5 2.1 15 4.5 20 2.3 2.0 2.9 0.85 4.6 <0.90 <1.8 DUP-1 9/9/14 2.0 2.5 1.5 <0.38 1.2 <1.1 260 <0.47 3.7 5.4 <0.59 14 11 <0.73 <0.44 <0.61 <0.94 1.10 2.4 <0.81 <0.73 5.4 1.9 17 1.5 5 1.6 1.9 <0.74 <0.74 2.2 <0.90 <1.8 Indoor-DC 5/29/14 30 3.5 1.3 <0.38 1.3 <1.1 640 5.1 6.7 9.4 <0.59 35 14 1.00 <0.44 <0.61 <0.94 1.1 4.3 <0.81 <0.73 3.0 <0.61 56 0.88 4.2 0.96 1.1 <0.74 <0.74 1.9 <0.90 <1.8 DUP-1 5/29/14 30 4.2 <0.31 <0.38 1.5 <1.1 470 <0.47 9.5 <0.44 <0.59 56 16 <0.73 <0.44 <0.61 <0.94 1.2 4.7 <0.81 <0.73 4.1 <0.61 57 1.70 5.4 1.3 1.3 <0.74 <0.74 2.2 <0.90 <1.8 Indoor-DC 2/11/14 1200 2.8 1.1 <0.38 2.0 <1.1 92 <0.47 0.80 1.5 <0.59 1.0 18 <0.73 <0.44 <0.61 <0.94 0.55 1.3 <0.81 <0.73 0.66 <0.61 35 <0.65 0.82 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 DUP-1 2/11/14 1400 3.3 1.2 <0.38 2.1 <1.1 110 2.1 1.1 <0.44 <0.59 <0.54 20 <0.73 <0.44 <0.61 <0.94 0.53 <0.52 <0.81 <0.73 0.64 <0.61 37 <0.65 0.81 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-DC 8/26/13 4600 --------------------------------0.60 ------------------------------ Indoor-SR 3/22/17 <1.0 2.1 1.0 <0.38 1.2 <1.1 6,600 <0.47 2.6 79 <0.59 NA 210 <0.73 <0.44 <0.61 <0.94 0.77 3,200 3.5 <0.73 310 <0.61 5,000 2.2 5.2 1.1 <1.3 <1.5 <1.5 1.5 <1.8 8.9 Indoor-SR 12/9/16 <1.0 2.4 1.3 <0.38 1.9 <1.1 970 <0.47 26 140 <0.59 41 190 <0.73 <0.44 <0.61 <0.94 1.5 700 23 <0.73 370 2.0 450 2.3 8 2.5 3 1.50 2.4 5.6 <0.90 2.1 Indoor-SR 10/13/16 <1.0 2.4 1.2 <0.38 1.3 <1.1 960 15.00 7 150 <0.59 110 660 <0.73 <0.44 <0.61 <0.94 5.5 180 26 <0.73 73 <0.61 990 4 14 4.4 2 0.94 1.8 4.6 <0.90 9 Indoor-SR 6/29/16 1.8 2.0 1.2 <0.38 0.94 <1.1 3,900 <0.47 190 120 <0.59 950 <0.53 <0.73 <0.44 <0.61 <0.94 1.1 300 17 <0.73 1,500 <0.60 8,900 10 33 8.9 24 0.98 2.0 6.1 2.8 99 Indoor-SR 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 2,400 <4.7 18 78 <5.9 180 2100 <7.3 <4.4 <6.1 <9.4 <4.8 120 <8.1 <7.3 110 <6.1 2400 <6.5 20 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-SR 12/2/15 <10 <7.4 <3.1 <3.8 <8.4 <11 4,600 <4.7 31 120 <5.9 1100 6200 <7.3 <4.4 <6.1 <9.4 <4.8 170 <8.1 <7.3 52 <6.1 6100 16 57 15 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-SR 8/14/15 2.7 4.1 1.9 <0.38 1.4 <1.1 1,200 <0.47 140 270 <0.59 630 1200.00 <0.73 <0.44 <0.61 <0.94 0.94 120 48.00 <0.73 130 <0.61 620 21 68 18 6.0 <0.74 0.75 2.5 <0.90 <1.8 Indoor-SR 5/7/15 1.2 2.4 1.4 <0.38 1.9 <1.1 4,700 1.20 84 340 <0.59 440 <0.53 <0.73 <0.44 3.50 <0.94 1.10 130 1.10 <0.73 45 1.4 3300 9 32 9 8.6 <0.74 <0.74 1.8 <0.90 9.8 Indoor-SR 2/5/15 2.5 2.4 1.2 <0.38 1.5 <1.1 800 <0.47 71 480 <0.59 430 1300.00 0.31 <0.44 <0.20 <0.94 1.80 320 <0.81 <0.73 51 4.5 700 12 42 11 3.0 1.4 2.40 8.0 14 19 Indoor-SR 9/10/14 2.5 2.4 1.2 <0.38 1.3 <1.1 1,200 <0.47 5.6 270 <0.59 16 1200.00 <0.73 <0.44 <0.61 <0.94 1.40 260 <0.81 <0.73 33 3.0 2600 5.3 20 5.5 1.3 0.83 2.20 5.7 <0.90 <1.8 Indoor-SR 5/30/14 16 3.0 1.5 <0.38 1.2 <1.1 1200 <0.47 13 120 <0.59 62 860.00 <0.73 <0.44 <0.61 <0.94 4.70 80 <0.81 <0.73 42 <0.61 1300 15 63 21 2.7 3.5 4.00 15 <0.90 8.0 Indoor-SR 2/11/14 400 2.7 1.1 <0.38 2.0 <1.1 3400 1.1 24 180 <0.59 26 1500 <0.73 <0.44 <0.61 <0.94 0.85 89 <0.81 <0.73 56 <0.61 2800 6.7 27 7.1 2.0 0.93 2.40 6.3 <0.90 29 Indoor-SR 9/3/13 2500 2.6 1.3 <0.38 1.4 <1.1 750 <0.47 18 44 <0.59 13 440 <0.73 <0.44 <0.61 <0.94 <0.48 35 0.93 <0.73 8.3 <0.61 620 1.7 8.8 1.9 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Suite #36 Family Shoe Repair Suite #34 Former Ft. Union Dry Cleaners Table 2 Historical VOC Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah VOCs* - EPA Method TO-15 Micrograms per cubic-meter (µg/m3) Lo c a t i o n Sa m p l e I D Da t e C o l l e c t e d Suite #32 Groovy Nails Te t r a c h l o r o e t h e n e Di c h l o r o d i f l u o r o me t h a n e Ch l o r o m e t h a n e Vi n y l c h l o r i d e Fr e o n 1 1 Fr e o n 1 1 3 Ac e t o n e Ca r b o n d i s u l f i d e Me t h y l e n e ch l o r i d e 2- B u t a n o n e ci s - 1 , 2 - Di c h l o r o e t h e n e Et h y l A c e t a t e He x a n e Ch l o r o f o r m Te t r a h y d r o f u r a n 1, 2 - Di c h l o r o e t h a n e Ca r b o n te t r a c h l o r i d e Be n z e n e Cy c l o h e x a n e Tr i c h l o r o e t h e n e 1, 2 - Di c h l o r o p r o p a n e He p t a n e 4- M e t h y l - 2 - pe n t a n o n e To l u e n e Et h y l B e n z e n e m, p - X y l e n e o- X y l e n e St y r e n e 4- E t h y l t o l u e n e 1, 3 , 5 - Tr i m e t h y l b e n z e n e 1, 2 , 4 - Tr i m e t h y l b e n z e n e 1, 4 - Di c h l o r o b e n z e n e 1, 2 - Di c h l o r o b e n z e n e Table 2 Historical VOC Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah VOCs* - EPA Method TO-15 Micrograms per cubic-meter (µg/m3) Lo c a t i o n Sa m p l e I D Da t e C o l l e c t e d Indoor-AT 3/22/17 <1.0 2.6 1.2 <0.38 1.4 <1.1 4,300 <0.47 5.3 8.7 <0.59 <1.1 15 <0.73 <0.44 <0.61 <0.94 1.8 120 2,700 <0.73 45 13 360 2.9 12 3.4 6.2 <1.5 <1.5 2.1 <1.8 <1.8 Indoor-AT 12/9/16 <1.0 2.7 <0.31 <0.38 2.7 <1.1 800 <0.47 4.1 5.1 <0.59 35 5.8 <0.73 0.45 <0.61 <0.94 2.9 8.7 2,000 <0.73 9 21 35 2.0 7.0 2.7 3.7 2.6 2.8 5.5 <0.90 <1.8 Indoor-AT 10/13/16 <1.0 2.4 <0.31 <0.38 1.5 <1.1 170 <0.47 2.2 <0.44 <0.59 16 15 <0.73 <0.44 <0.61 <0.94 1.6 2.0 2,600 <0.73 23 19 33 1.1 4.3 1.5 1.8 <0.74 <0.74 1.3 <0.90 <1.8 Indoor-AT 6/29/16 <1.0 2.1 1.8 <0.38 1.5 <1.1 1,000 <0.47 16 2.1 <0.59 54 2.5 <0.73 <0.44 <0.61 <0.94 <0.48 2.0 120 <0.73 44 48 9.4 <0.65 2.0 0.80 3.2 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-AT 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 3,000 <4.7 5.5 9.0 <5.9 120 610 <7.3 <4.4 <6.1 <9.4 <4.8 20 26 <7.3 63 90 740 <6.5 7.1 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-AT 12/2/12 <1.0 2.1 1.1 <0.38 1.1 <1.1 650 <0.47 0.76 2.3 <0.59 22 3.5 <0.73 <0.44 <0.61 <0.94 1.2 <0.52 66 <0.73 2.8 7.2 14 0.88 4.1 1.6 1.7 <0.74 <0.74 2.1 <0.90 <1.8 Indoor-AT 8/14/15 2.0 3.7 1.9 <0.38 1.2 <1.1 640 <0.47 1.8 6.8 <0.59 15 14.0 <0.73 <0.44 1.70 <0.94 0.65 <0.52 860.0 <0.73 12 2.3 34 2.3 4.8 1.8 11.0 <0.74 <0.74 1.7 <0.90 <1.8 Indoor-AT 5/7/15 1.3 2.4 1.2 <0.38 1.4 <1.1 420 4.2 8.6 7.7 <0.59 <0.54 20.0 <0.73 <0.44 1.80 <0.94 0.65 1.9 50.0 1.50 4 3.7 40 1.5 3.7 1.4 5.5 <0.74 <0.74 0.9 <0.90 <1.8 Indoor-AT 2/5/15 6.4 2.3 1.4 <0.38 1.5 <1.1 470 <0.47 1.9 5.2 <0.59 22 9.3 1.0 <0.44 <0.20 <0.94 1.70 1.8 8.6 <0.73 16 4.9 98 2.2 5.6 2.0 6.0 <0.74 <0.74 2.1 <0.90 <1.8 Indoor-AT 9/9/14 2.3 2.7 1.7 <0.38 1.3 <1.1 2,600 1.4 1.9 4.8 <0.59 160 3.7 <0.73 <0.44 1.10 <0.94 0.81 1.4 <0.81 <0.73 180 130 26 2.1 5.2 1.9 8.4 <0.74 <0.74 2.0 <0.90 <1.8 Indoor-AT 5/29/14 7.2 2.7 1.5 <0.38 1.6 <1.1 1400 6.3 4.7 10 <0.59 31 18 <0.73 <0.44 1.70 <0.94 1.90 5.8 <0.81 1.9 20 <0.61 75 2.0 5.7 1.7 6.7 <0.74 <0.74 1.2 <0.90 <1.8 Indoor-AT 2/12/14 200 3.5 1.7 <0.38 2.1 <1.1 1700 <0.47 2.5 12.0 <0.59 18 28 <0.73 <0.44 <0.61 <0.94 0.88 4.3 <0.81 <0.73 11 <0.61 62 1.2 4.0 1.3 3.0 <0.74 <0.74 1.7 <0.90 1.9 Indoor-AT 9/3/13 2800 2.9 1.9 <0.38 1.5 <1.1 410 <0.47 7.7 8.3 <0.59 11 95 <0.73 <0.44 4.20 <0.94 1.00 5.0 <0.81 <0.73 24 <0.61 160 1.5 5.6 1.8 7.8 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-MC 3/22/17 1.6 2.8 1.2 <0.38 1.4 <1.1 780 <0.47 3.9 4.0 <0.59 <1.1 4.0 0.82 <0.44 <0.61 <0.94 1.5 23 38 <0.73 3.9 0.70 110 1.7 7.4 2.1 3.1 <1.5 <1.5 1.9 <1.8 <1.8 Indoor-MC 12/9/16 <1.0 3.0 1.5 <0.38 1.5 <1.1 600 <0.47 2.2 3.5 <0.59 19 4.4 <0.73 <0.44 <0.61 <0.94 4.3 2.3 4 <0.73 2.2 <0.61 38 2.0 7.1 2.4 1.2 0.92 0.9 2.4 <0.90 <1.8 Indoor-MC 10/13/16 <1.0 <0.74 <0.31 <0.38 1.3 <1.1 780 <0.47 1.0 3.6 <0.59 11 9.1 <0.73 <0.44 <0.61 <0.94 1.6 <0.52 19 <0.73 4.6 0.66 32 1.5 4.8 1.7 1.3 <0.74 <0.74 1.4 <0.90 <1.8 Indoor-MC 6/29/16 <1.0 2.9 1.8 <0.38 1.5 <1.1 100 <0.47 2.0 2.6 <0.59 7.4 1.9 <0.73 <0.44 0.65 <0.94 0.66 1.4 3.0 <0.73 3.2 0.90 35 1.7 4.8 1.7 2.6 <0.74 <0.74 1.6 <0.90 <1.8 Indoor-MC 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 250 <4.7 <5.2 <4.4 <5.9 16 <5.3 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 7.0 <6.1 170 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-MC 12/2/15 <1.0 2.2 1.1 <0.38 1.1 <1.1 530 <0.47 0.55 2.2 <0.59 7.7 3.9 <0.73 1.7 <0.61 <0.94 1.7 0.92 2.2 <0.73 1.1 <0.61 34 1.1 4.6 1.7 0.96 1.6 1.1 5.0 <0.90 <1.8 Indoor-MC 8/14/15 <1.0 3.7 1.8 <0.38 1.3 <1.1 150 0.70 1.4 4.1 <0.59 19.0 8.2 >0.73 <0.48 0.81 <0.94 0.65 1.7 5.6 <0.73 3.9 <0.61 34 1.6 3.3 1.2 5.9 <0.74 <0.74 1.2 <0.90 <1.8 Indoor-MC 5/7/15 <1.0 2.7 1.1 <0.38 1.6 <1.1 180 <0.47 1.4 3.7 <0.59 10.0 22.0 >0.73 <0.44 <0.61 <0.94 0.89 2.7 1.5 <0.73 2.5 1.10 56 1.7 4.0 1.5 6.2 <0.74 <0.74 1.0 <0.90 <1.8 Indoor-MC 2/5/15 1.5 2.3 1.3 <0.38 1.3 <1.1 76 <0.47 1.5 2.0 <0.59 9.7 3.7 0.54 <0.44 <0.20 <0.94 1.80 1.9 <0.81 <0.73 2.2 <0.61 17 <0.65 <0.65 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-MC 9/9/14 4.5 2.6 1.6 <0.38 1.3 <1.1 58 <0.47 2.3 4.6 <0.59 16 2.0 >0.73 <0.44 <0.61 <0.94 0.93 3.6 <0.81 <0.73 3.1 0.77 30 1.4 3.7 1.3 2.3 <0.74 <0.74 1.6 <0.90 <1.8 Indoor-MC 5/29/14 2.0 4.1 1.3 <0.38 1.7 <1.1 73 <0.47 17 4.4 <0.59 5.4 26 <0.73 <0.44 <0.61 <0.94 5.20 12 <0.81 <0.73 7.9 <0.61 33 0.88 2.0 <0.65 1.3 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-MC 2/11/14 36 2.8 1.2 <0.38 2.1 <1.1 250 3.2 1.4 4.5 <0.59 5.5 20 <0.73 <0.44 <0.61 <0.94 1.60 2.6 <0.81 <0.73 1.9 <0.61 63 0.97 3.6 1.2 0.91 <0.74 <0.74 1.4 <0.90 <1.8 Indoor-MC 9/3/13 2000 2.8 1.6 <0.38 1.5 <1.1 94 <0.47 1.1 3.4 <0.59 5.5 8.4 <0.73 <0.44 <0.61 <0.94 0.50 2.2 <0.81 <0.73 0.88 <0.61 41 <0.65 1.7 0.67 0.75 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-MWJP 3/22/17 <1.0 4.0 1.3 <0.38 1.5 <1.1 460 <0.47 7.0 7.3 <0.59 <1.1 9.1 <0.73 <0.44 0.65 <0.94 0.90 34 24 0.73 5.0 1.2 160 6.7 29 8.0 5.9 <1.5 <1.5 2.8 <1.8 <1.8 Indoor-MW 6/29/16 <1.0 2.7 1.8 0.93 1.4 <1.1 82 <0.47 2.9 1.8 <0.59 3.8 1.6 <0.73 <0.44 0.93 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 3.1 <0.65 <0.65 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-MW 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 280 <4.7 <5.2 <4.4 <5.9 13 39 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 8.1 <7.3 18 <6.1 69 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-MW 12/2/15 <1.0 2.4 1.1 <0.38 1.3 <1.1 160 <0.47 0.96 3.0 <0.59 14 4.2 <0.73 <0.44 <0.61 <0.94 1.6 0.56 4.5 <0.73 2.0 0.79 13 2.1 14 4.9 0.68 1.9 2.2 6.5 <0.90 <1.8 Indoor-MW 8/14/15 33 3.0 2.1 1.30 1.2 <1.1 92 <0.47 2.9 4.5 <0.59 23 1.7 1.3 <0.44 1.60 <0.94 0.56 1.1 1 <0.73 3.2 <0.61 9 1.0 2.2 0.91 2.7 <0.74 <0.74 1.8 <0.90 <1.8 Indoor-MW 5/7/15 <1.0 2.7 1.7 0.55 1.6 <1.1 160 0.58 1.4 3.6 <0.59 22 5.2 1.1 0.70 0.96 <0.94 0.63 0.8 1 <0.73 3.4 <0.61 13 1.2 2.8 1.10 3.0 <0.74 <0.74 0.9 <0.90 <1.8 Indoor-MW 2/5/15 1.1 2.6 1.5 <0.38 1.4 <1.1 130 <0.47 1.3 3.2 <0.59 <0.54 3.1 1.5 <0.44 <0.20 <0.94 1.50 1.2 <0.81 <0.73 3.2 <0.61 12 1.0 2.8 0.99 2.7 <0.74 <0.74 1.1 <0.90 <1.8 Indoor-MW 9/9/14 <1.0 2.3 1.6 <0.38 1.2 <1.1 31 <0.47 1.2 3.7 <0.59 12 1.1 <0.73 <0.44 <0.61 <0.94 0.58 0.78 <0.81 <0.73 1.7 <0.61 4 <0.65 1.5 <0.65 1.8 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-MW 5/29/14 1.9 2.8 2.4 <0.38 <0.84 <1.1 26 <0.47 <0.52 4.0 <0.59 16 240 <0.73 <0.44 <0.61 <0.94 37.00 120 <0.81 <0.73 73 <0.61 130 8.4 26 5.9 1.7 <0.74 <0.74 1.5 <0.90 <1.8 Indoor-MW 2/11/14 56 3.0 1.4 <0.38 2.4 <1.1 700 3.9 2.2 9.6 <0.59 29 30 <0.73 <0.44 <0.61 <0.94 1.60 2.3 <0.81 <0.73 3.2 <0.61 60 0.93 3.4 1.2 2.4 <0.74 <0.74 1.4 <0.90 <1.8 Indoor-MW 9/3/13 1100 2.9 1.5 0.42 1.5 <1.1 94 <0.47 0.77 2.8 <0.59 5.8 2.2 <0.73 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 5 <0.65 1.3 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-FS 3/22/17 <1.0 3.5 1.5 <0.38 1.6 <1.1 460 <0.47 6.6 9.3 <0.59 <1.1 5.5 3.5 <0.44 0.89 <0.94 1.9 25 8.6 <0.73 4.2 0.75 150 4.6 18 5.0 4.0 <1.5 <1.5 3.4 <1.8 <1.8 Indoor-FS 12/9/16 <1.0 2.3 <0.31 <0.38 2.2 <1.1 650 <0.47 3.2 4.0 <0.59 31 3.9 2.9 0.46 <0.61 <0.94 3.5 3.30 13 <0.73 5.8 0.73 19 1.5 5.6 2.2 1.4 3.3 3.5 7.3 <0.90 <1.8 Indoor-FS 10/13/16 <1.0 1.8 <0.31 <0.38 1.6 <1.1 430 <0.47 2.1 3.0 <0.59 44 10 6.0 <0.44 <0.61 <0.94 1.8 2.10 9.7 <0.73 14 <0.61 28.0 2.0 6.0 2.2 1.9 0.8 0.90 2.3 <0.90 <1.8 Indoor-FS 6/29/16 <1.0 2.5 1.7 0.65 1.5 <1.1 130 <0.47 5.1 3 <0.59 12 1.7 <0.73 0.49 0.93 <0.94 0.89 <0.52 <0.81 <0.73 3.6 <0.61 9.7 1.2 2.8 0.97 1.5 <0.74 <0.74 0.82 <0.90 <1.8 Indoor-FS 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 330 <4.7 <5.2 17 <5.9 20 83 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 110 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-FS 12/2/15 <10 2.3 <0.31 <0.38 1.3 <1.1 440 <0.47 0.84 3.7 <0.59 24 5.2 <0.73 1.7 <0.61 <0.94 1.6 0.89 6.2 <0.73 2.4 1.1 19 1.1 4.8 1.7 1.1 <0.74 0.78 2.8 <0.90 <1.8 Indoor-FS 8/14/15 <1.0 2.7 1.5 0.81 1.1 <1.1 110 1.70 2.5 4.0 <0.59 42 2.6 <0.73 0.45 1.40 <0.94 1.6 1.4 <0.81 <0.73 4.7 <0.61 17 1.6 4.0 1.4 2.3 <0.74 <0.74 1.4 <0.90 <1.8 Indoor-FS 5/7/15 <1.0 1.2 1.1 <0.38 1.5 <1.1 240 <0.47 1.7 4.0 <0.59 24 3.5 0.8 0.55 0.90 <0.94 1.1 1.1 1 <0.73 5.1 <0.61 13 1.4 3.5 1.4 2.2 <0.74 <0.74 0.9 <0.90 <1.8 Indoor-FS 2/5/15 1.1 2.6 1.6 <0.38 1.6 1.2 240 <0.47 1.9 4.3 <0.59 <0.54 3.9 3.3 <0.44 <0.20 <0.94 2.0 1.6 <0.81 <0.73 5.7 <0.61 19 1.9 3.8 1.3 2.4 <0.74 <0.74 1.6 <0.90 <1.8 Indoor-FS 9/9/14 <1.0 2.5 1.8 <0.38 1.4 <1.1 75 <0.47 1.6 7.8 <0.59 27 1.5 <0.73 0.55 0.87 <0.94 0.83 1.3 <0.81 <0.73 5.6 <0.61 9 1.5 5.4 1.5 2.2 <0.74 <0.74 1.9 <0.90 <1.8 Indoor-FS 5/29/14 2.3 <0.74 6.9 0.61 1.0 <1.1 230 <0.47 6.6 0.63 <0.59 22 90 <0.73 <0.44 <0.61 <0.94 19 40 <0.81 <0.73 29 <0.61 72 2.3 8.9 1.5 1.3 <0.74 <0.74 0.87 <0.90 <1.8 Indoor-FS 2/11/14 49 3.1 1.2 <0.38 2.6 <1.1 1300 <0.47 2.8 15.0 <0.59 34 20 <0.73 <0.44 <0.61 <0.94 1.6 2.1 <0.81 <0.73 4.0 <0.61 48 0.98 3.3 1.1 1.4 <0.74 <0.74 1.4 <0.90 <1.8 Indoor-FS 9/3/13 1900 2.8 1.6 <0.38 0.88 <1.1 110 <0.47 1.0 3.9 <0.59 8.3 5.9 2.40 <0.44 1.30 <0.94 0.58 <0.52 <0.81 <0.73 0.99 2.3 14 <0.65 2.1 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Suite #44 Fantastic Sam's Suite #42 Melty Way Suite #40 The Mail Center Suite #38 It's All About Time Te t r a c h l o r o e t h e n e Di c h l o r o d i f l u o r o me t h a n e Ch l o r o m e t h a n e Vi n y l c h l o r i d e Fr e o n 1 1 Fr e o n 1 1 3 Ac e t o n e Ca r b o n d i s u l f i d e Me t h y l e n e ch l o r i d e 2- B u t a n o n e ci s - 1 , 2 - Di c h l o r o e t h e n e Et h y l A c e t a t e He x a n e Ch l o r o f o r m Te t r a h y d r o f u r a n 1, 2 - Di c h l o r o e t h a n e Ca r b o n te t r a c h l o r i d e Be n z e n e Cy c l o h e x a n e Tr i c h l o r o e t h e n e 1, 2 - Di c h l o r o p r o p a n e He p t a n e 4- M e t h y l - 2 - pe n t a n o n e To l u e n e Et h y l B e n z e n e m, p - X y l e n e o- X y l e n e St y r e n e 4- E t h y l t o l u e n e 1, 3 , 5 - Tr i m e t h y l b e n z e n e 1, 2 , 4 - Tr i m e t h y l b e n z e n e 1, 4 - Di c h l o r o b e n z e n e 1, 2 - Di c h l o r o b e n z e n e Table 2 Historical VOC Indoor Air Analytical Results The Shops at Fort Union Midvale, Utah VOCs* - EPA Method TO-15 Micrograms per cubic-meter (µg/m3) Lo c a t i o n Sa m p l e I D Da t e C o l l e c t e d Indoor-SB 3/22/17 <1.0 4.0 1.3 <0.38 1.4 <1.1 830 <0.47 4.3 34 <0.59 150 <0.53 0.77 <0.44 0.92 <0.94 1.1 18 1.9 <0.73 16 <0.61 160 2.8 8.6 2.7 3.2 <1.5 <1.5 1.9 <1.8 <1.8 Indoor-SB 12/9/16 <1.0 2.9 <0.31 <0.38 1.9 <1.1 660 <0.47 3.6 3.1 <0.59 110 3.4 0.78 0.54 <0.61 <0.94 3.1 3.1 5.8 <0.73 22 <0.61 26 2.1 6.2 2.4 1.3 4.6 4.4 9.3 <0.90 <1.8 Indoor-SB 10/13/16 <1.0 2.9 <0.31 <0.38 1.7 <1.1 510 <0.47 2.8 <0.44 <0.59 98 7.8 1.1 <0.44 <0.61 <0.94 2.8 2.4 3.3 <0.73 31 <0.61 29 2.3 6.8 2.3 2.1 <0.74 <0.74 1.8 <0.90 <1.8 Indoor-SB 6/29/16 <1.0 2.4 1.6 <0.38 1.3 <1.1 460 0.84 3.5 2.1 <0.59 46 1.3 1.0 <0.44 <0.61 <0.94 0.87 <0.52 <0.81 <0.73 11 0.65 10 0.94 2.6 0.93 1.6 <0.74 <0.74 1.3 <0.90 <1.8 Indoor-SB 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 740 <4.7 7.2 43 <5.9 77 <5.3 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 16 <6.1 92 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-SB 12/2/15 <1.0 1.7 1.1 <0.38 1.3 <1.1 830 <0.47 1.5 2.6 <0.59 82 3.9 1.7 0.74 <0.61 <0.94 2.0 1.2 3.5 <0.73 8.8 0.83 20 2.0 7.6 2.0 1.5 1.3 1.6 6.2 <0.90 <1.8 Indoor-SB 8/14/15 <1.0 3.2 <0.31 <0.38 1.3 <1.1 410 <0.47 3.0 5 <0.59 150 <0.53 1.30 0.93 1.00 <0.94 0.56 <0.52 0.96 <0.73 14 <0.61 20 1.6 3.7 1.2 2.9 <0.74 <0.74 1.1 <0.90 <1.8 Indoor-SB 5/7/15 <1.0 2.4 1.3 <0.38 1.9 <1.1 680 4.30 26.0 5 <0.59 110 2.7 2.20 2.20 1.30 <0.94 0.9 1.7 <0.81 <0.73 16 1.00 18 2.3 6.0 2.7 2.9 <0.74 <0.74 1.0 <0.90 <1.8 Indoor-SB 2/5/15 5.0 2.4 1.4 <0.38 1.4 <1.1 410 <0.47 4.8 11 <0.59 210 2.8 7.70 1.50 <0.20 <0.94 1.7 1.9 <0.81 <0.73 24 <0.61 22 1.9 4.3 1.6 2.5 <0.74 <0.74 1.3 <0.90 <1.8 Indoor-SB 9/9/14 <1.0 2.5 1.6 <0.38 1.3 <1.1 160 0.47 3.0 19 <0.59 26 1.3 1.30 0.97 <0.61 <0.94 0.84 1.2 <0.81 <0.74 13 0.61 9 1.7 4.6 1.2 2.2 <0.74 <0.74 1.5 <0.90 <1.8 Indoor-SB 5/29/14 1.7 3.3 1.2 <0.38 1.0 <1.1 580 <0.47 8.8 21 <0.59 54 110 <0.73 <0.44 <0.82 <0.94 23 59 <0.81 <0.73 59 <0.61 79 3.6 8.8 2.3 1.3 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-SB 2/11/14 21 3.0 1.4 <0.38 2.2 <1.1 11000 <0.47 3.1 26 <0.59 100 8.5 <0.73 1.90 <0.82 <0.94 1.8 2.2 <0.81 <0.73 9.9 <0.61 31 1.5 5.0 1.5 1.1 <0.74 <0.74 1.8 <0.90 <1.8 Indoor-SB 9/3/13 1300 2.8 1.5 0.59 1.5 <1.1 780 1.7 3.4 35 <0.59 74 7.4 0.79 1.00 1.10 <0.94 0.84 1.8 <0.81 <0.73 18 1.7 72 0.84 2.8 0.87 0.83 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-OM 5/7/15 <1.0 2.3 1.0 <0.38 1.4 <1.1 23 <0.47 1.3 1.1 <0.59 2.4 1.1 <0.73 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 1.4 <0.61 5 1.2 2.3 0.9 1.7 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-OM 2/5/15 <1.0 3.4 1.4 <0.38 2.3 2.4 46 <0.47 2.5 2.6 <0.59 <0.54 3.5 0.42 <0.44 <0.20 <0.94 1.4 2.0 <0.81 <0.73 4.2 <0.61 16 3.2 5.1 1.9 5.2 <0.74 <0.74 0.93 <0.90 <1.8 Indoor-OM 9/9/14 <1.0 2.1 1.4 <0.38 1.1 <1.1 39 0.54 6.7 4.3 <0.59 1.8 5.9 <0.73 <0.44 <0.61 <0.94 2.1 3.6 <0.81 <0.73 3.2 1.0 14 2.1 8.1 2.6 1.4 <0.74 <0.74 2.7 <0.90 <1.8 Indoor-OM 5/29/14 <1.0 2.5 0.96 <0.38 0.97 <1.1 48 <0.47 7.1 <0.44 <0.59 1.3 68 <0.73 <0.44 <0.61 <0.94 13 32 <0.81 <0.73 23 <0.61 43 1.3 5.1 1.2 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-OM 2/11/14 45 5.4 1.4 <0.38 3.8 1.7 260 34 5.7 4.5 <0.59 9.0 13 1.00 <0.44 1.40 <0.94 1.5 2.9 <0.81 6.1 3.8 <0.61 34 2.1 4.4 1.4 3.6 <0.74 <0.74 1.1 <0.90 <1.8 Indoor-OM 9/3/13 57 2.9 1.7 <0.38 1.4 <1.1 30 <0.47 2.8 1.7 1.7 1.5 0.91 3.30 <0.44 <0.61 <0.94 <0.48 1.2 2.6 <0.73 2.5 <0.61 3 <0.65 1.6 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-U 3/22/17 <1.0 2.0 1.3 <0.38 1.3 <1.1 79 <0.47 20 1.9 <0.59 <1.1 0.70 <0.73 <0.44 <0.61 <0.94 0.54 <0.52 <0.81 <0.73 <0.61 <0.61 4.4 <0.65 0.86 <0.65 <1.3 <1.5 <1.5 <1.5 <1.8 <1.8 Indoor-U 12/9/16 <1.0 2.9 <0.31 <0.38 2.6 <1.1 530 <0.47 52 3.4 <0.59 49 46.0 <0.73 2.9 <0.61 <0.94 75 8.4 <0.81 <0.73 17 <0.61 290 22 120 32 <0.64 15 16 43 <0.90 <1.8 Indoor-U 10/13/16 <1.0 2.9 <0.31 <0.38 1.8 <1.1 340 0.64 24 5.2 <0.59 1200 4.3 <0.73 0.99 <0.61 <0.94 2.2 0.91 <0.81 <0.73 8.8 <0.61 14 1.4 5.6 1.7 0.79 <0.74 <0.74 1.3 <0.90 <1.8 Indoor-U 6/29/16 <1.0 2.5 1.4 <0.38 1.6 <1.1 31 <0.47 9.5 1.7 <0.59 14 0.58 <0.73 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 2.3 <0.65 0.73 <0.65 <0.64 <0.74 <0.74 <0.74 <0.90 <1.8 Indoor-U 3/2/16 <10 <7.4 <3.1 <3.8 <8.4 <11 63 <4.7 13 <4.4 <5.9 8.6 <5.3 <7.3 <4.4 <6.1 <9.4 <4.8 <5.2 <8.1 <7.3 <6.1 <6.1 8.6 <6.5 <6.5 <6.5 <6.4 <7.4 <7.4 <7.4 <9.0 <18 Indoor-U 12/2/15 <1.0 2.3 1.2 <0.38 1.2 <1.1 83 <0.47 6.0 2.4 <0.59 19 1.4 <0.73 <0.44 <0.61 <0.94 1.1 <0.52 <0.81 <0.73 1.3 <0.61 8.5 0.98 4.2 1.5 0.68 <0.74 0.85 2.8 <0.90 <1.8 Indoor-U 8/14/15 <1.0 2.5 1.6 <0.38 1.2 <1.1 140 <0.47 10 4.5 <0.59 21.0 0.81 <0.73 <0.44 <0.61 <0.94 <0.48 0.62 <0.81 <0.73 0.7 1.0 6 <0.65 1.2 <0.65 <0.64 <0.74 <0.74 0.96 <0.90 <1.8 Indoor-U 5/7/15 <1.0 2.4 1.1 <0.38 1.4 <1.1 160 <0.47 9.7 3.5 <0.59 32.0 1.30 <0.73 <0.44 <0.61 <0.94 0.58 0.52 <0.81 <0.73 1.6 1.5 9 1.4 3.3 1.3 2 <0.74 <0.74 1.5 <0.90 <1.8 Indoor-U 2/5/15 3.7 2.5 1.3 <0.38 1.3 <1.1 80 <0.47 11 3.3 <0.59 <0.54 2.00 0.69 <0.44 <0.20 <0.94 1.3 1.2 <0.81 <0.73 2.1 0.88 10 1.5 3.5 1.3 2.2 <0.74 <0.74 1.9 <0.90 <1.8 Indoor-U 9/9/14 <1.0 2.1 1.5 <0.38 1.1 <1.1 30 0.49 7.1 1.8 <0.59 7.0 2.90 <0.73 <0.44 <0.61 <0.94 1.2 1.7 <0.81 <0.73 1.3 0.95 7 0.99 4.5 1.4 <0.64 <0.74 <0.74 2.1 <0.90 <1.8 Indoor-U 5/29/14 <1.0 2.8 1.3 <0.38 0.89 <1.1 44 <0.47 20 4.2 <0.59 17 64.00 <0.73 <0.44 <0.61 <0.94 12 28 <0.81 <0.73 17 <0.61 38 1.2 5.1 1.3 <0.64 <0.74 <0.74 1.0 <0.90 <1.8 Indoor-U 2/11/14 6.9 3.7 1.6 <0.38 2.4 <1.1 260 <0.47 19 <0.44 <0.59 18 <0.53 <0.73 <0.44 <0.61 <0.94 1.0 2.2 1.6 <0.73 1.4 <0.61 11 0.74 2.7 0.91 0.79 <0.74 <0.74 1.6 <0.90 <1.8 Indoor-U 8/8/13 <1.0 --------------------------------0.51 ------------------------------ Indoor-S 5/7/15 <1.0 2.0 1.7 <0.38 1.4 <1.1 29 <0.47 2.3 1.6 <0.59 9.2 0.98 <0.73 <0.44 1.90 <0.94 0.62 <0.52 <0.81 <0.73 0.86 0.63 4 <0.65 2 0.67 1.10 <0.74 <0.74 <0.74 1.9 1.9 Indoor-S 2/5/15 <1.0 2.4 1.5 <0.38 1.6 <1.1 57 <0.47 3.3 2.3 <0.59 <0.54 1.8 0.69 5.40 <0.20 <0.94 1.7 1.0 <0.81 <0.73 0.94 <0.61 21 0.93 3.9 1.2 0.88 <0.74 <0.74 2.0 3.7 3.5 Indoor-S 9/9/14 <1.0 3.0 2.0 <0.38 1.6 <1.1 38 0.51 5.4 1.7 <0.59 8.0 1.4 <0.73 <0.44 <0.73 <0.94 0.88 0.83 <0.81 <0.73 0.95 0.72 6 <0.65 2.8 0.97 0.90 0.84 0.82 3.1 4.1 <1.8 Indoor-S 5/29/14 <1.0 2.4 1.2 <0.38 1.3 <1.1 23 <0.47 3.6 2.8 <0.59 9.8 26 <0.73 <0.44 <0.61 <0.94 5.6 8.6 <0.81 <0.73 4.8 <0.61 12 <0.65 1.8 <0.65 <0.64 <0.74 <0.74 1.2 1.8 <1.8 Indoor-S 2/11/14 1.7 4.1 1.8 <0.38 3.0 <1.1 38 <0.47 1.3 <0.44 <0.59 3.0 1.0 <0.73 <0.44 <0.61 1.00 1.3 1.4 <0.81 <0.73 0.71 <0.61 5 0.82 4.8 0.85 <0.64 <0.74 <0.74 1.2 5.5 <1.8 Indoor-S 9/3/13 <1.0 2.9 1.6 <0.38 1.7 <1.1 34 <0.47 2.4 2.7 <0.59 7.5 0.71 0.91 <0.44 <0.61 <0.94 <0.48 <0.52 <0.81 <0.73 <0.61 <0.61 2 <0.65 2.1 0.66 0.75 <0.74 <0.74 <0.74 <0.90 <1.8 47 440 390 2.80 3,100 130,000 140,000 3,100 1,200 22,000 NE 310 3,100 0.53 8800.00 0.47 2.00 1.6 26,000 3.0 1.2 NE 13,000 22000 4.9 440 440 4,400 NE NE 31 1.1 880 NE - Not Established VISL = US EPA May 2016 Commercial Vapor Intrusion Screening Level, THQ=1 (ug/m3) *Only those analytes actually detected in at least one sample are tabulated Suite #56 Smith's Food and Drug Suite #52 Ulta Beauty Suite #50 Office Max Values in bold indicate concentrations above respective VISLs VISL Suite #46 Sally Beauty Supply SUMMARY REPORT FOR APRIL 2023 INDOOR AIR SAMPLING EVENT Appendices June 15, 2023 V//230706007/05-reports/delivs/2023/aprSumRept Appendix A Copy of ALS Air Sampling Laboratory Result Report ANALYTICAL REPORT John G. Russell Stantec 3995 S 700 E Salt Lake City, UT 84107 Phone: Fax: E-mail: (801) 943-4144 (801) 942-1852 John.RussellIII@stantec.com Report Date:May 05, 2023 34-2311893Workorder: DDR 203706007Purchase Order: Project ID: Project Manager Lisa M. Reid Sampling SiteReceive DateCollect DateLab IDClient Sample ID 2311893001 04/27/23AT 04/28/23 DDR 2311893002 04/27/23DC 04/28/23 DDR 2311893003 04/27/23FS 04/28/23 DDR 2311893004 04/27/23GN 04/28/23 DDR 2311893005 04/27/23MC 04/28/23 DDR 2311893006 04/27/23MWJD 04/28/23 DDR 2311893007 04/27/23OM 04/28/23 DDR 2311893008 04/27/23SB 04/28/23 DDR Page 1 of 6 Fri, 05/05/23 11:40 AM ENVREP-V4.8 ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 84123 USA PHONE FAX+1 801 266 7700 +1 801 268 9992 ALS GROUP USA, CORP.An ALS Limited Company ||WEB|http://www.alsglobal.com/slt ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Stantec Consulting Services, Inc. Workorder:34-2311893 Analytical Results Sample ID:04/27/2023 04/28/20232311893001Lab ID: Collected: Received: AT DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 13:30 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 10.250.063 0.050trans-1,2-Dichloroethene 1<0.20ND 0.050cis-1,2-Dichloroethene 1<0.20ND 0.0501,2-Dichloroethane 12.80.51 0.050Trichloroethene E 1<0.34ND 0.050Tetrachloroethene Sample ID:04/27/2023 04/28/20232311893002Lab ID: Collected: Received: DC DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 14:04 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 1<0.20ND 0.050trans-1,2-Dichloroethene 1<0.20ND 0.050cis-1,2-Dichloroethene 1<0.20ND 0.0501,2-Dichloroethane 10.700.13 0.050Trichloroethene 10.390.058 0.050Tetrachloroethene Sample ID:04/27/2023 04/28/20232311893003Lab ID: Collected: Received: FS DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 14:38 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 1<0.20ND 0.050trans-1,2-Dichloroethene Page 2 of 6 Fri, 05/05/23 11:40 AM ENVREP-V4.8 Results Continued on Next Page ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Stantec Consulting Services, Inc. Workorder:34-2311893 Analytical Results Sample ID:04/27/2023 04/28/20232311893003Lab ID: Collected: Received: FS DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 14:38 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.20ND 0.050cis-1,2-Dichloroethene 10.230.056 0.0501,2-Dichloroethane 10.450.084 0.050Trichloroethene 1<0.34ND 0.050Tetrachloroethene Sample ID:04/27/2023 04/28/20232311893004Lab ID: Collected: Received: GN DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 15:15 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 1<0.20ND 0.050trans-1,2-Dichloroethene 1<0.20ND 0.050cis-1,2-Dichloroethene 1<0.20ND 0.0501,2-Dichloroethane 10.330.062 0.050Trichloroethene 1<0.34ND 0.050Tetrachloroethene Sample ID:04/27/2023 04/28/20232311893005Lab ID: Collected: Received: MC DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 15:50 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 1<0.20ND 0.050trans-1,2-Dichloroethene 1<0.20ND 0.050cis-1,2-Dichloroethene 1<0.20ND 0.0501,2-Dichloroethane Page 3 of 6 Fri, 05/05/23 11:40 AM ENVREP-V4.8 Results Continued on Next Page ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Stantec Consulting Services, Inc. Workorder:34-2311893 Analytical Results Sample ID:04/27/2023 04/28/20232311893005Lab ID: Collected: Received: MC DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 15:50 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 11.20.22 0.050Trichloroethene 1<0.34ND 0.050Tetrachloroethene Sample ID:04/27/2023 04/28/20232311893006Lab ID: Collected: Received: MWJD DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 16:24 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 1<0.20ND 0.050trans-1,2-Dichloroethene 1<0.20ND 0.050cis-1,2-Dichloroethene 1<0.20ND 0.0501,2-Dichloroethane 1<0.27ND 0.050Trichloroethene 1<0.34ND 0.050Tetrachloroethene Sample ID:04/27/2023 04/28/20232311893007Lab ID: Collected: Received: OM DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 16:58 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 1<0.20ND 0.050trans-1,2-Dichloroethene 1<0.20ND 0.050cis-1,2-Dichloroethene 1<0.20ND 0.0501,2-Dichloroethane 1<0.27ND 0.050Trichloroethene 1<0.34ND 0.050Tetrachloroethene Page 4 of 6 Fri, 05/05/23 11:40 AM ENVREP-V4.8 ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Stantec Consulting Services, Inc. Workorder:34-2311893 Analytical Results Sample ID:04/27/2023 04/28/20232311893008Lab ID: Collected: Received: SB DDR Sampling Parameter:NAMatrix: Media: Air Summa 6 Liter Canister Sampling Site: Analysis:EPA TO-15 SIM, Air Analyzed:05/04/2023 17:32 Batch: Instrument ID: IVOA/6188 (HBN: 306611) 5975-LPreparation:Not Applicable Result (ppb)Analyte Result (ug/m³)RL (ppb)Dilution Qual Analysis Method - EPA TO-15 SIM by IH-AN-014 1<0.13ND 0.050Vinyl chloride 1<0.20ND 0.050trans-1,2-Dichloroethene 1<0.20ND 0.050cis-1,2-Dichloroethene 1<0.20ND 0.0501,2-Dichloroethane 10.300.055 0.050Trichloroethene 1<0.34ND 0.050Tetrachloroethene Report Authorization Analyst Peer ReviewMethod (/S/ is an electronic signature that complies with 21 CFR Part 11) EPA TO-15 SIM by IH-AN-014 (306611)/S/ Paul Kelly 05/05/2023 09:37 05/05/2023 11:38 /S/ Robert Copenhafer Laboratory Contact Information (801) 266-7700 alslt.lab@ALSGlobal.com www.alsglobal.com/slt ALS Environmental 960 W Levoy Drive Salt Lake City, Utah 84123 Phone: Email: Web: Page 5 of 6 Fri, 05/05/23 11:40 AM ENVREP-V4.8 ANALYTICAL REPORT Project Manager:Lisa M. Reid Client:Stantec Consulting Services, Inc. Workorder:34-2311893 General Lab Comments The results provided in this report relate only to the items tested. Samples were received in acceptable condition unless otherwise noted. The following was provided by the client: Sample ID, Collection Date, Sampling Location, Media Type, Sampling Parameter. Collection Date, Media Type, and Sampling Parameter can potentially affect the validity of the results. Samples have not been blank corrected unless otherwise noted. This test report shall not be reproduced, except in full, without written approval of ALS. ALS provides professional analytical services for all samples submitted. ALS is not in a position to interpret the data and assumes no responsibility for the quality of the samples submitted. All quality control samples processed with the samples in this report yielded acceptable results unless otherwise noted. ALS is accredited for specific fields of testing (scopes) in the following testing sectors. The quality system implemented at ALS conforms to accreditation requirements and is applied to all analytical testing performed by ALS. The following table lists testing sector, accreditation body, accreditation number and website. Please contact these accrediting bodies or your ALS project manager for the current scope of accreditation that applies to your analytical testing. Testing Sector Accreditation Body (Standard) Certificate Number Website Industrial Hygiene AIHA (ISO 17025 & AIHA IHLAP) 101574 http://www.aihaaccreditedlabs.org DOECAP-AP L22-62 http://www.pjlabs.com Washington C596 https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Lab oratory-Accreditation Dietary Supplements PJLA (ISO 17025) L22-61 http://www.pjlabs.com MDL = Method Detection Limit, a statistical estimate of method/media/instrument sensitivity. RL = Reporting Limit, a verified value of method/media/instrument sensitivity. CRDL = Contract Required Detection Limit Reg. Limit = Regulatory Limit. ND = Not Detected, testing result not detected above the MDL or RL. < Means this testing result is less than the numerical value. ** No result could be reported, see sample comments for details. U = Qualifier indicates that the analyte was not detected above the MDL. J = Qualifier Indicates that the analyte value is between the MDL and the RL. It is also used to indicate an estimated value for B = Qualifier indicates that the analyte was detected in the blank. E = Qualifier indicates that the analyte result exceeds calibration range. P = Qualifier indicates that the RPD between the two columns is greater than 40%. Result Symbol Definitions Qualifier Symbol Definitions tentatively identified compounds in mass spectrometry where a 1:1 response is assumed. Q = Qualifier indicates that the analyte was outside the limits in a lab QC sample. Page 6 of 6 Fri, 05/05/23 11:40 AM ENVREP-V4.8 Analysis: Analyzed By: IVOA/6188 (HBN: 306611) Paul Kelly Workorder:2311893 EPA TO-15 SIM by IH-AN-014 Batch:NA Prepared By:NA Batch: Preparation:NAHistorical/Performance ALS Laboratory Group Limits: Basis: Analysis Information Blank MB: Analyzed: Units: Analyte Result MDL RL 821219 05/04/2023 12:45 ppb Vinyl chloride NA 0.0500ND trans-1,2-Dichloroethene NA 0.0500ND cis-1,2-Dichloroethene NA 0.0500ND 1,2-Dichloroethane NA 0.0500ND Trichloroethene NA 0.0500ND Tetrachloroethene NA 0.0500ND Laboratory Control Sample - Laboratory Control Sample Duplicate Dilution:1 ppb Analyte Result % Rec QC Limits LCS: Analyzed: 821220 05/04/2023 11:01 Units: Target 05/04/2023 11:36 821221LCSD: Analyzed: Result RPD QC Limits% Rec Units:ppb Dilution:1 0.466 25.00.02.3393.2144.466.995.40.5000.477Vinyl chloride 0.462 25.00.01.5992.4126.469.593.90.5000.469trans-1,2-Dichloroethene 0.467 25.00.01.7393.4167.452.295.10.5000.475cis-1,2-Dichloroethene 0.461 25.00.00.68792.2141.962.492.80.5000.4641,2-Dichloroethane 0.455 25.00.00.62691.0166.633.891.60.5000.458Trichloroethene 0.477 25.00.00.25995.4128.961.495.20.5000.476Tetrachloroethene QC Report Authorization (/S/ is an electronic signature that complies with 21 CFR Part 11) Analyst Peer ReviewWorkorder - Sample result is greater than 4 times the spike added - Analyte above reporting limit or outside of control limits Symbols and Definitions RPD - Relative % Difference (Spike / Spike Duplicate) ND - Not Detected (U - Qualifier also flags analyte as not detected) QC results are not adjusted for moisture correction, where applicable - Sample and Matrix Duplicate less than 5 times the reporting limit NA - Not Applicable - Result is above the calibration range The Matrix Spike, Matrix Spike duplicate or Matrix Duplicate is reported for your information only. The sample matrix may be inappropriate for the method selected. #- /S/ Paul Kelly /S/ Robert Copenhafer 05/05/2023 09:37 05/05/2023 11:382311893 Page 1 of 1 5/5/2023 11:41:00 AM Quality Control Sample Batch Report QCS V5.0 ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 84123 USA PHONE FAX+1 801 266 7700 +1 801 268 9992 ALS GROUP USA, CORP.An ALS Limited Company ||WEB|http://www.alsglobal.com/slt Clien Lab Sample IDLaborato SDG Matri Sample T Date Collected Date Received Date Analyzed Analytical Method CAS Numbe Analyte Name Result FResult Units Resu Dilu QL RL QC Group SpikeDuplicate % Reco Relativ Minim Maxi Mini Max Result AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.063 ppb 1 0.05 0.05 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.25 ug/m³1 0.2 0.2 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.51 ppb E 1 0.05 0.05 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 2.8 ug/m³E 1 0.27 0.27 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG AT 2311893001 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 13:30 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.050 ppb U 1 0.05 0.05 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.20 ug/m³U 1 0.2 0.2 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.13 ppb 1 0.05 0.05 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.7 ug/m³1 0.27 0.27 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.058 ppb 1 0.05 0.05 306611 TRG DC 2311893002 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:04 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.39 ug/m³1 0.34 0.34 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.050 ppb U 1 0.05 0.05 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.20 ug/m³U 1 0.2 0.2 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.056 ppb 1 0.05 0.05 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.23 ug/m³1 0.2 0.2 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.084 ppb 1 0.05 0.05 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.45 ug/m³1 0.27 0.27 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG FS 2311893003 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 14:38 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.050 ppb U 1 0.05 0.05 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.20 ug/m³U 1 0.2 0.2 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.062 ppb 1 0.05 0.05 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.33 ug/m³1 0.27 0.27 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG GN 2311893004 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:15 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.050 ppb U 1 0.05 0.05 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.20 ug/m³U 1 0.2 0.2 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.22 ppb 1 0.05 0.05 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 1.2 ug/m³1 0.27 0.27 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG MC 2311893005 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 15:50 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.050 ppb U 1 0.05 0.05 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.20 ug/m³U 1 0.2 0.2 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 79-01-6 Trichloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 79-01-6 Trichloroethene <<0.27 ug/m³U 1 0.27 0.27 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG MWJ 2311893006 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:24 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.050 ppb U 1 0.05 0.05 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.20 ug/m³U 1 0.2 0.2 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 79-01-6 Trichloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 79-01-6 Trichloroethene <<0.27 ug/m³U 1 0.27 0.27 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG OM 2311893007 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 16:58 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.050 ppb U 1 0.05 0.05 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.13 ug/m³U 1 0.13 0.13 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.050 ppb U 1 0.05 0.05 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.20 ug/m³U 1 0.2 0.2 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.050 ppb U 1 0.05 0.05 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.20 ug/m³U 1 0.2 0.2 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.050 ppb U 1 0.05 0.05 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.20 ug/m³U 1 0.2 0.2 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.055 ppb 1 0.05 0.05 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.3 ug/m³1 0.27 0.27 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.050 ppb U 1 0.05 0.05 306611 TRG SB 2311893008 ALS-SLC 2311893 Air SAMPLE 4/27/2023 0:00 4/28/2023 12:50 5/4/2023 17:32 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.34 ug/m³U 1 0.34 0.34 306611 TRG LAB 821219 ALS-SLC 2311893 Air MB 5/4/2023 12:45 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride <<0.05 ppb U 1 0.05 0.05 306611 TRG LAB 821219 ALS-SLC 2311893 Air MB 5/4/2023 12:45 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroet <<0.05 ppb U 1 0.05 0.05 306611 TRG LAB 821219 ALS-SLC 2311893 Air MB 5/4/2023 12:45 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethe <<0.05 ppb U 1 0.05 0.05 306611 TRG LAB 821219 ALS-SLC 2311893 Air MB 5/4/2023 12:45 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane <<0.05 ppb U 1 0.05 0.05 306611 TRG LAB 821219 ALS-SLC 2311893 Air MB 5/4/2023 12:45 EPA TO-15 SIM, Air 79-01-6 Trichloroethene <<0.05 ppb U 1 0.05 0.05 306611 TRG LAB 821219 ALS-SLC 2311893 Air MB 5/4/2023 12:45 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene <<0.05 ppb U 1 0.05 0.05 306611 TRG LAB 821220 ALS-SLC 2311893 Air LCS 5/4/2023 11:01 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride 0.477 ppb 1 0.05 0.05 306611 0.5 95.4 66.9 144 SC LAB 821220 ALS-SLC 2311893 Air LCS 5/4/2023 11:01 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.469 ppb 1 0.05 0.05 306611 0.5 93.9 69.5 126 SC LAB 821220 ALS-SLC 2311893 Air LCS 5/4/2023 11:01 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethene 0.475 ppb 1 0.05 0.05 306611 0.5 95.1 52.2 167 SC LAB 821220 ALS-SLC 2311893 Air LCS 5/4/2023 11:01 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.464 ppb 1 0.05 0.05 306611 0.5 92.8 62.4 142 SC LAB 821220 ALS-SLC 2311893 Air LCS 5/4/2023 11:01 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.458 ppb 1 0.05 0.05 306611 0.5 91.6 33.8 167 SC LAB 821220 ALS-SLC 2311893 Air LCS 5/4/2023 11:01 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.476 ppb 1 0.05 0.05 306611 0.5 95.2 61.4 129 SC LAB 821221 ALS-SLC 2311893 Air LCSD 5/4/2023 11:36 EPA TO-15 SIM, Air 75-01-4 Vinyl chloride 0.466 ppb 1 0.05 0.05 306611 0.5 0.477 93.2 2.33 66.9 144 0 25 SC LAB 821221 ALS-SLC 2311893 Air LCSD 5/4/2023 11:36 EPA TO-15 SIM, Air 156-60-5 trans-1,2-Dichloroethene 0.462 ppb 1 0.05 0.05 306611 0.5 0.469 92.4 1.59 69.5 126 0 25 SC LAB 821221 ALS-SLC 2311893 Air LCSD 5/4/2023 11:36 EPA TO-15 SIM, Air 156-59-2 cis-1,2-Dichloroethene 0.467 ppb 1 0.05 0.05 306611 0.5 0.475 93.4 1.73 52.2 167 0 25 SC LAB 821221 ALS-SLC 2311893 Air LCSD 5/4/2023 11:36 EPA TO-15 SIM, Air 107-06-2 1,2-Dichloroethane 0.461 ppb 1 0.05 0.05 306611 0.5 0.464 92.2 0.687 62.4 142 0 25 SC LAB 821221 ALS-SLC 2311893 Air LCSD 5/4/2023 11:36 EPA TO-15 SIM, Air 79-01-6 Trichloroethene 0.455 ppb 1 0.05 0.05 306611 0.5 0.458 91 0.626 33.8 167 0 25 SC LAB 821221 ALS-SLC 2311893 Air LCSD 5/4/2023 11:36 EPA TO-15 SIM, Air 127-18-4 Tetrachloroethene 0.477 ppb 1 0.05 0.05 306611 0.5 0.476 95.4 0.259 61.4 129 0 25 SC