Loading...
HomeMy WebLinkAbout729-39 Howard Street Highway Authirity Agreement (1) To: City Manager Luke Stowe From: Paul Zalmezak, Economic Development Manager Subject: Signature for Illinois EPA Required Highway Authority Agreement and Approach to Corrective Action for 729-39 Howard Street Date: August 11, 2025 City Manager Stowe: The attached two agreements need dates on the first pages and your signature. The City of Chicago, as the highway authority for Howard Street, has already signed. This is the final step for the Illinois EPA to issue the No Further Remediation Letter for the residential redevelopment at 729–39 Howard Street. Thank you. APPROVED ______________________________ Luke Stowe, City Manager Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a 12 August Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Approved as to form: Cynthia Grandfield Acting Corporation Counsel 08 / 14 / 2025 Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Exhibit A Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Exhibit B Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 0.0989 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 0.0137 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 0.0073 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 0.083 19.4 0.0394 5.4 Toluene 16,000 650 410,000 42 12 29 290 <0.005 0.009 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 0.0872 <0.005 0.0295 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic Soil Limits^Residential NRO = No Remediation Objective Class II B101 (2-4') Construction Worker Soil Component of GW Ingestion Class I EE231696-344 Sample ID Numbers 729-739 Howard Street, Evanston, Illinois Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs* B103 (0-2') B101 (8-10') B102 (6-8') Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 0.145 <0.005 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 113 <0.005 1.95 0.377 Toluene 16,000 650 410,000 42 12 29 290 0.0064 0.009 0.008 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 <0.005 0.0127 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic B103 (8-10') B103 (12-14') Residential Construction Worker VOCs NRO = No Remediation Objective Class I Class II B104 (6-8') B105 (6-8') Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 <0.005 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 0.121 0.0445 0.16 0.0361 Toluene 16,000 650 410,000 42 12 29 290 0.006 0.009 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 <0.005 <0.005 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic B106 (4-6') B107 (0-2') Residential Construction Worker VOCs NRO = No Remediation Objective Class I Class II B107 (6-8') B108 (0-2') 729-739 Howard Street, Evanston, Illinois EE231696-344 Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 <0.005 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 0.0673 0.374 0.158 <0.005 Toluene 16,000 650 410,000 42 12 29 290 0.0091 0.009 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 0.0083 <0.005 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic B108 (4-6') B109 (0-2') Residential Construction Worker Date Sampled NRO = No Remediation Objective Class I Class II B109 (6-8') B109 (8-10') 729-739 Howard Street, Evanston, Illinois EE231696-344 Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 0.22 0.0107 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 0.0094 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 <0.005 146 0.117 Toluene 16,000 650 410,000 42 12 29 290 <0.005 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 0.125 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic VOCs NRO = No Remediation Objective Class I Class II B109 (10-12') Residential Construction Worker B110 (8-10') B110 (10-12') Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 <0.005 <0.005 Toluene 16,000 650 410,000 42 12 29 290 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic 729-739 Howard Street, Evanston, Illinois EE231696-344 Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Residential Construction Worker VOCs NRO = No Remediation Objective Class I Class II B201 (10-12') B202 (12-14') Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: Surface Soils Subsurface Soils B103 (8-10') B110 (8-10') Date Sampled 4/24/2023 4/25/2023 TPH (Gasoline)NRO NRO <10 <10 TPH (Diesel)NRO NRO <10 <10 TPH (Oil)NRO NRO <10 <10 TPH (Total)6,000 2,000 <10 <10 * Illinois EPA Default Soil Attenuation Capacity as noted in 35 IAC 742.215 All results in parts per million (mg/Kg) unless noted otherwise NRO = No Remediation Objective 729-739 Howard Street, Evanston, Illinois EE231696-344 Chemical Name Default Soil Attenuation Capacity* VOCs Table 2. Soil Analytical Results - TPH Sample ID Numbers Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: 4/24/2023 5 <0.010 100 <1.0 1 <0.005 5 <0.005 5 <0.005 0.2 <0.0005 1 <0.010 5 <0.005 ^ US EPA Hazardous Waste Standard 40 CFR Part 260 * = Results in parts per million (mg/L) TCLP Metals Table 3. Soil Analytical Results - TCLP Metals Date Sampled 729-739 Howard Street, Evanston, Illinois EE231696-344 Chemical Name Hazardous Waste Standard^ Sample ID Numbers B103 (8-10') Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation PCBs Aroclor 1016 1.0 NRO NRO NRO NRO <0.08 Aroclor 1221 1.0 NRO NRO NRO NRO <0.08 Aroclor 1232 1.0 NRO NRO NRO NRO <0.08 Aroclor 1242 1.0 NRO NRO NRO NRO <0.08 Aroclor 1248 1.0 NRO NRO NRO NRO <0.08 Aroclor 1254 1.0 NRO NRO NRO NRO <0.16 Aroclor 1260 1.0 NRO NRO NRO NRO <0.16 * Illinois EPA Tier 1 SROs for industrial/commercial properties; 35 IAC 742, Appendix B, Table B and "Non-TACO Compunds º Illinois EPA Tier SROs for commercial/industrial properties; 35 IAC 742, Appendix B, Table B All results in parts per million (mg/Kg) unless noted otherwise NRO = No Remediation Objective Residential Ingestion Inhalation Class II B103 (8-10') Date Sampled Table 4. Soil Analytical Results - PCBs Sample ID Numbers 729-739 Howard Street, Evanston, Illinois EE231696-344 Chemical Name Exposure Route-Specific SROs*Construction Workerºof GW Ingestion Route* Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 4/26/23 4/26/23 4/26/23 4/23/26 Acetone 6.3 6.3 <0.1 <0.1 <0.1 <0.1 Benzene 0.005 0.025 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 0.0002 0.0002 <0.001 <0.001 <0.001 <0.001 Bromoform 0.001 0.001 <0.001 <0.001 <0.001 <0.001 Bromomethane 0.0098 0.049 <0.005 <0.005 <0.005 <0.005 2-Butanone (MEK)4.2 4.2 <0.01 <0.01 <0.01 <0.01 Carbon Disulfide 0.7 3.5 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 0.005 0.025 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 0.1 0.5 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 0.14 0.14 <0.001 <0.001 <0.001 <0.001 Chloroethane 2.8 14 <0.01 <0.01 <0.01 <0.01 Chloroform 0.0002 0.001 <0.001 0.0016 0.0017 0.0012 Chloromethane 0.028 0.14 <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 0.7 3.5 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 0.005 0.025 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 0.007 0.035 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 0.07 0.2 0.0075 <0.005 <0.005 0.227 trans-1,2-Dichloroethene 0.1 0.5 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 0.005 0.025 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 0.001 0.005 <0.001 <0.001 <0.001 <0.001 trans-1,3-Dichloropropene 0.001 0.005 <0.001 <0.001 <0.001 <0.001 Ethylbenzene 0.7 1 <0.005 <0.005 <0.005 <0.005 2-Hexanone 0.288 0.288 <0.01 <0.01 <0.01 <0.01 Methyl-tert-butylether (MTBE)0.07 0.07 <0.005 <0.005 <0.005 <0.005 4-Methyl-2-pentanone (MIBK)NRO NRO <0.01 <0.01 <0.01 <0.01 Methylene Chloride 0.005 0.05 <0.005 <0.005 <0.005 <0.005 Styrene 0.1 0.5 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 0.21 1.05 <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 0.005 0.25 0.174 0.0441 0.0459 7.46 Toluene 1 2.5 <0.005 <0.005 <0.005 <0.005 1,1,1-Trichloroethane 0.2 1 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 0.005 0.05 <0.005 <0.005 <0.005 <0.005 Trichloroethene 0.005 0.025 0.013 <0.005 <0.005 0.0986 Vinyl acetate 7 7 <0.01 <0.01 <0.01 <0.01 Vinyl chloride 0.002 0.01 <0.002 <0.002 <0.002 <0.002 Xylene 10 10 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier 1 Groundwater Remediation Objectives (GROs; 35 IAC 742, Appendix B, Table E) mg/L) unless noted otherwise NRO = No Remediation Objective MW4 VOCs Chemical Name Groundwater Sample Numbers Class II MW1 MW2 Groundwater Remediation Objective Class I MW3 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Groundwater Table (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 4/26/23 4/26/23 4/26/23 4/23/26 Acetone 1,000,000 1,000,000 <0.1 <0.1 <0.1 <0.1 Benzene 0.11 0.41 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 6,700 6,700 <0.001 <0.001 <0.001 <0.001 Bromoform 3.1 12 <0.001 <0.001 <0.001 <0.001 Bromomethane NRO NRO <0.005 <0.005 <0.005 <0.005 2-Butanone (MEK)10,000 48,000 <0.01 <0.01 <0.01 <0.01 Carbon Disulfide 67 210 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 0.02 0.76 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 26 82 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 2,600 2,600 <0.001 <0.001 <0.001 <0.001 Chloroethane NRO NRO <0.01 <0.01 <0.01 <0.01 Chloroform 0.07 0.15 <0.001 0.0016 0.0017 0.0012 Chloromethane NRO NRO <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 180 580 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 0.054 0.22 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 24 74 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 3,500 3,500 0.0075 <0.005 <0.005 0.227 trans-1,2-Dichloroethene 16 51 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 0.48 0.48 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 0.14 0.52 <0.001 <0.001 <0.001 <0.001 trans-1,3-Dichloropropene 0.14 0.52 <0.001 <0.001 <0.001 <0.001 Ethylbenzene 0.37 1.4 <0.005 <0.005 <0.005 <0.005 2-Hexanone NRO NRO <0.01 <0.01 <0.01 <0.01 Methyl-tert-butylether 1,900 6,800 <0.005 <0.005 <0.005 <0.005 4-Methyl-2-pentanone NRO NRO <0.01 <0.01 <0.01 <0.01 Methylene Chloride 2.1 8.2 <0.005 <0.005 <0.005 <0.005 Styrene 310 310 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane NRO NRO <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 0.091 0.34 0.174 0.0441 0.0459 7.46 Toluene 530 530 <0.005 <0.005 <0.005 <0.005 1,1,1-Trichloroethane 1,000 1,300 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 4,400 4,400 <0.005 <0.005 <0.005 <0.005 Trichloroethene 0.34 1.3 0.013 <0.005 <0.005 0.0986 Vinyl acetate 160 550 <0.01 <0.01 <0.01 <0.01 Vinyl chloride 0.028 0.21 <0.002 <0.002 <0.002 <0.002 Xylene 30 93 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier 1 Groundwater Remediation Objectives For Indoor Inhalation (IIROs; 35 IAC 742, Appendix B, Table H) All results in parts per million (mg/L) unless noted otherwise NRO = No Remediation Objective a = Carcinogenic b = Noncarcinogenic Project Number: EE231696-344 Table 6. ECG Groundwater Analytical Results (Indoor Inhalation) - VOCs Date Sampled VOCs Chemical Name Industrial/Commercial MW1 Groundwater Remediation Objectives for Indoor Inhalation Exposure Route Residential MW2 Groundwater Sample Numbers MW4MW3 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Groundwater Vapor Table (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 6/2/2023 6/2/2023 6/2/2023 2/12/2024 Acetone 750,000 0.848 0.4988 0.6722 0.1342 Benzene 0.37 0.0527 ND ND ND Bromodichloromethane 450,000 ND ND ND ND Bromoform 11 ND ND ND ND Bromomethane NRO ND ND ND ND 2-Butanone (MEK)6,400 0.0826 ND 0.0687 ND Carbon Disulfide 780 ND ND ND ND Carbon Tetrachloride 0.21 ND ND ND ND Chlorobenzene 69 ND ND ND ND Chlorodibromomethane 57,000 ND ND ND ND Chloroethane NRO ND ND ND ND Chloroform 0.11 ND ND ND ND Chloromethane NRO ND ND ND ND 1,1-Dichloroethane 690 ND ND ND ND 1,2-Dichloroethane 0.099 ND ND ND ND 1,1-Dichloroethene 240 ND ND ND ND cis-1,2-Dichloroethene 1,100,000 1.3679 ND ND 0.4441 trans-1,2-Dichloroethene 85 0.1185 ND ND ND 1,2-Dichloropropane 0.31 ND ND ND ND cis-1,3-Dichloropropene 0.9 ND ND ND ND trans-1,3-Dichloropropene 0.9 ND ND ND ND Dibromochloromethane 57,000 ND ND ND ND Dichlorodifluoromethane 270 ND ND ND ND Ethylbenzene 1.3 ND ND 0.2883 ND 2-Hexanone NRO ND ND ND ND Methyl-tert-butylether (MTBE)3,700 ND ND ND ND 4-Methyl-2-pentanone (MIBK)NRO ND ND 0.0791 ND Methylene Chloride 5.6 ND ND ND ND Naphthalene 0.11 ND ND ND ND Styrene 1,400 ND ND ND ND 1,1,2,2-Tetrachloroethane NRO ND ND ND ND Tetrachloroethene 0.55 318.78 27.0624 31.1319 118.6947 Toluene 6,200 0.075 ND ND 0.075 1,1,1-Trichloroethane 6,600 ND ND ND ND 1,1,2-Trichloroethane 170,000 ND ND ND ND Trichloroethene 1.5 9.8877 0.2107 0.1016 2.8588 Vinyl acetate 250 ND ND ND ND Vinyl chloride 0.29 ND ND ND ND Xylene 140 0.11 ND ND 0.11 * Illinois EPA Tier 1 Indoor Inhalation(Soil-Gas) Remediation Objectives For Indoor Inhalation (IIROs); 35 IAC 742, Appendix B, Table H) mg/m3) unless noted otherwise ND = Non-Detected BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 IIROs NRO = No Remediation Objective Date Sampled VOCs Chemical Name Soil-Gas Remediation Objectives for Indoor Inhalation Exposure Route Soil-Gas Vapor Sample Numbers Residential VP1 VP2 VP1AVP3 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\RACR\Tables\Soil-Gas Vapor Table (344) Add Testing Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 2/12/2024 2/12/2024 5/3/2024 11/14/2024 Acetone 750,000 0.1321 0.0926 0.4893 1.3706 Benzene 0.37 ND ND ND 0.0081 Bromodichloromethane 450,000 ND ND ND ND Bromoform 11 ND ND ND ND Bromomethane NRO ND ND ND ND 2-Butanone (MEK)6,400 ND ND 0.0345 0.0375 Carbon Disulfide 780 ND ND ND ND Carbon Tetrachloride 0.21 ND ND ND ND Chlorobenzene 69 ND ND ND ND Chlorodibromomethane 57,000 ND ND ND ND Chloroethane NRO ND ND ND ND Chloroform 0.11 ND ND 0.0591 0.0039 Chloromethane NRO ND ND ND 0.0011 1,1-Dichloroethane 690 ND ND ND 0.0031 1,2-Dichloroethane 0.099 ND ND ND ND 1,1-Dichloroethene 240 ND ND ND ND cis-1,2-Dichloroethene 1,100,000 ND ND 0.0987 0.0122 trans-1,2-Dichloroethene 85 ND ND ND ND 1,2-Dichloropropane 0.31 ND ND ND ND cis-1,3-Dichloropropene 0.9 ND ND ND ND trans-1,3-Dichloropropene 0.9 ND ND ND ND Dibromochloromethane 57,000 ND ND ND ND Dichlorodifluoromethane 270 ND ND ND ND Ethylbenzene 1.3 ND ND 0.0125 0.0346 2-Hexanone NRO ND ND ND ND Methyl-tert-butylether (MTBE)3,700 ND ND ND ND 4-Methyl-2-pentanone (MIBK)NRO ND ND ND 0.0106 Methylene Chloride 5.6 ND ND ND ND Naphthalene 0.11 ND ND ND ND Styrene 1,400 ND ND ND 0.0043 1,1,2,2-Tetrachloroethane NRO ND ND ND ND Tetrachloroethene 0.55 9.4277 23.8746 20.4833 3.6626^ Toluene 6,200 ND ND 0.0219 0.0697 1,1,1-Trichloroethane 6,600 ND ND ND ND 1,1,2-Trichloroethane 170,000 ND ND ND ND Trichloroethene 1.5 0.058 0.0256 0.1139 0.086 Vinyl acetate 250 ND ND ND ND Vinyl chloride 0.29 ND ND ND 0.0014 Xylene 140 ND ND 0.046 0.1653 * Illinois EPA Tier 1 Indoor Inhalation(Soil-Gas) Remediation Objectives For Indoor Inhalation (IIROs); 35 IAC 742, Appendix B, Table H) mg/m3) unless noted otherwise ND = Non-Detected BOLD^ exceed the site-specific Illinois EPA Tier 1 IIROs, but below the Tier 2 site specific remediation objective BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 IIROs NRO = No Remediation Objective Date Sampled VOCs Chemical Name Soil-Gas Remediation Objectives for Indoor Inhalation Exposure Route Soil-Gas Vapor Sample Numbers Residential VP2A VP3A VP5VP4 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\RACR\Tables\Soil-Gas Vapor Table (344) Add Testing Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Exhibit C Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a 12 August Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a City Manager Approved as to form: Cynthia Grandfield Acting Corporation Counsel 08 / 14 / 2025 Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Exhibit A Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Exhibit B Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 0.0989 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 0.0137 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 0.0073 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 0.083 19.4 0.0394 5.4 Toluene 16,000 650 410,000 42 12 29 290 <0.005 0.009 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 0.0872 <0.005 0.0295 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic Soil Limits^Residential NRO = No Remediation Objective Class II B101 (2-4') Construction Worker Soil Component of GW Ingestion Class I EE231696-344 Sample ID Numbers 729-739 Howard Street, Evanston, Illinois Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs* B103 (0-2') B101 (8-10') B102 (6-8') Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 0.145 <0.005 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 113 <0.005 1.95 0.377 Toluene 16,000 650 410,000 42 12 29 290 0.0064 0.009 0.008 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 <0.005 0.0127 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic B103 (8-10') B103 (12-14') Residential Construction Worker VOCs NRO = No Remediation Objective Class I Class II B104 (6-8') B105 (6-8') Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 <0.005 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 0.121 0.0445 0.16 0.0361 Toluene 16,000 650 410,000 42 12 29 290 0.006 0.009 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 <0.005 <0.005 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic B106 (4-6') B107 (0-2') Residential Construction Worker VOCs NRO = No Remediation Objective Class I Class II B107 (6-8') B108 (0-2') 729-739 Howard Street, Evanston, Illinois EE231696-344 Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 <0.005 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 0.0673 0.374 0.158 <0.005 Toluene 16,000 650 410,000 42 12 29 290 0.0091 0.009 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 0.0083 <0.005 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic B108 (4-6') B109 (0-2') Residential Construction Worker Date Sampled NRO = No Remediation Objective Class I Class II B109 (6-8') B109 (8-10') 729-739 Howard Street, Evanston, Illinois EE231696-344 Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 0.22 0.0107 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 0.0094 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 <0.005 146 0.117 Toluene 16,000 650 410,000 42 12 29 290 <0.005 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 0.125 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic VOCs NRO = No Remediation Objective Class I Class II B109 (10-12') Residential Construction Worker B110 (8-10') B110 (10-12') Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation ingestion inhalation Acetone 7,800 100,000 200,000 100,000 25 25 20,000 <0.2 <0.2 Benzene 12 0.8 2,300 2.2 0.03 0.17 580 <0.005 <0.005 Bromodichloromethane 10 3,000 2,000 3,000 0.6 0.6 2,000 <0.005 <0.005 Bromoform 81 53 16,000 140 0.8 0.8 1,200 <0.005 <0.005 Bromomethane 110 10 1,000 3.9 NRO NRO 3,600 <0.01 <0.01 2-Butanone (MEK)47,000 25,000 120,000 710 17 17 NSSL <0.1 <0.1 Carbon disulfide 7,800 720 20,000 9.0 32 160 520 <0.005 <0.005 Carbon Tetrachloride 5 0.3 410 0.90 0.07 0.33 560 <0.005 <0.005 Chlorobenzene 1,600 130 4,100 1.3 1 6.5 290 <0.005 <0.005 Chlorodibromomethane 1,600 1,300 41,000 1,300 0.4 0.4 890 <0.005 <0.005 Chloroethane NRO 1,500 NRO NRO NRO NRO NSSL <0.01 <0.01 Chloroform 100 0.3 2,000 0.76 0.6 2.9 2,500 <0.005 <0.005 Chloromethane 310 110 NRO NRO 0.14 0.68 NSSL <0.01 <0.01 1,1-Dichloroethane 7,800 1,300 200,000 130 23 110 1,400 <0.005 <0.005 1,2-Dichloroethane 7.0 0.4 1,400 0.99 0.02 0.1 2,100 <0.005 <0.005 1,1-Dichloroethene 3900 290 1,800 300 0.06 0.3 910 <0.005 <0.005 cis-1,2-Dichloroethene 780 1,200 20,000 1,200 0.4 1.1 1,000 <0.005 <0.005 trans-1,2-Dichloroethene 1,600 3,100 41,000 3,100 0.7 3.4 2,100 <0.005 <0.005 1,2-Dichloropropane 9 15 1,800 0.50 0.03 0.15 870 <0.005 <0.005 cis-1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 trans1,3-Dichloropropene 6.4 1.1 1,200 0.39 0.004 0.02 850 <0.004 <0.004 Ethylbenzene 7,800 400 20,000 58 13 19 150 <0.005 <0.005 2-Hexanone 3,100 70 NRO NRO 1.3 1.3 NSSL <0.01 <0.01 MTBE 780 8,800 2,000 140 0.32 0.32 1,100 <0.005 <0.005 NRO 3,100 NRO 340 NRO NRO NSSL <0.01 <0.01 Methylene Chloride 85 13 12,000 34 0.002 0.2 3,000 <0.02 <0.02 Styrene 16,000 1,500 41,000 430 4 18 260 <0.005 <0.005 1,1,2,2-Tetrachloroethane 4,700 2,000 6,100 2,100 3.3 3.3 NSSL <0.005 <0.005 Tetrachloroethene 12 11 2,400 28 0.06 0.3 310 <0.005 <0.005 Toluene 16,000 650 410,000 42 12 29 290 <0.005 <0.005 1,1,1-Trichloroethane NRO 1,200 NRO 1,200 2 9.6 670 <0.005 <0.005 1,1,2-Trichloroethane 310 1,800 8,200 1,800 0.02 0.3 1,300 <0.005 <0.005 Trichloroethene 58 5 1,200 12 0.06 0.3 650 <0.005 <0.005 Vinyl Acetate 78,000 1,000 200,000 10 170 170 170 <0.01 <0.01 Vinyl Chloride 0.46 0.28 170 1.1 0.01 0.07 290 <0.01 <0.01 Xylene 160,000 320 41,000 5.6 150 150 320 <0.005 <0.005 * Illinois EPA Tier SROs for residential properties; 35 IAC 742, Appendix B, Table A ^ Illinois EPA Soil Saturation Limits (Csat) for the Soil Componenet of the Groundwater Ingestion Exposure Route; 35 IAC 742, Appendix A, Table A All results in parts per million (mg/Kg) unless noted otherwise NSSL = No Soil Saturation Limit Results in BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 SROs a = Carcinogenic b = Noncarcinogenic 729-739 Howard Street, Evanston, Illinois EE231696-344 Table 1. Soil Analytical Results - VOCs Chemical Name Exposure Route-Specific SROs*GW Ingestion Soil Limits^ Sample ID Numbers Residential Construction Worker VOCs NRO = No Remediation Objective Class I Class II B201 (10-12') B202 (12-14') Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Soil Tables (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: Surface Soils Subsurface Soils B103 (8-10') B110 (8-10') Date Sampled 4/24/2023 4/25/2023 TPH (Gasoline)NRO NRO <10 <10 TPH (Diesel)NRO NRO <10 <10 TPH (Oil)NRO NRO <10 <10 TPH (Total)6,000 2,000 <10 <10 * Illinois EPA Default Soil Attenuation Capacity as noted in 35 IAC 742.215 All results in parts per million (mg/Kg) unless noted otherwise NRO = No Remediation Objective 729-739 Howard Street, Evanston, Illinois EE231696-344 Chemical Name Default Soil Attenuation Capacity* VOCs Table 2. Soil Analytical Results - TPH Sample ID Numbers Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: 4/24/2023 5 <0.010 100 <1.0 1 <0.005 5 <0.005 5 <0.005 0.2 <0.0005 1 <0.010 5 <0.005 ^ US EPA Hazardous Waste Standard 40 CFR Part 260 * = Results in parts per million (mg/L) TCLP Metals Table 3. Soil Analytical Results - TCLP Metals Date Sampled 729-739 Howard Street, Evanston, Illinois EE231696-344 Chemical Name Hazardous Waste Standard^ Sample ID Numbers B103 (8-10') Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: Project Number: ingestion inhalation PCBs Aroclor 1016 1.0 NRO NRO NRO NRO <0.08 Aroclor 1221 1.0 NRO NRO NRO NRO <0.08 Aroclor 1232 1.0 NRO NRO NRO NRO <0.08 Aroclor 1242 1.0 NRO NRO NRO NRO <0.08 Aroclor 1248 1.0 NRO NRO NRO NRO <0.08 Aroclor 1254 1.0 NRO NRO NRO NRO <0.16 Aroclor 1260 1.0 NRO NRO NRO NRO <0.16 * Illinois EPA Tier 1 SROs for industrial/commercial properties; 35 IAC 742, Appendix B, Table B and "Non-TACO Compunds º Illinois EPA Tier SROs for commercial/industrial properties; 35 IAC 742, Appendix B, Table B All results in parts per million (mg/Kg) unless noted otherwise NRO = No Remediation Objective Residential Ingestion Inhalation Class II B103 (8-10') Date Sampled Table 4. Soil Analytical Results - PCBs Sample ID Numbers 729-739 Howard Street, Evanston, Illinois EE231696-344 Chemical Name Exposure Route-Specific SROs*Construction Workerºof GW Ingestion Route* Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 4/26/23 4/26/23 4/26/23 4/23/26 Acetone 6.3 6.3 <0.1 <0.1 <0.1 <0.1 Benzene 0.005 0.025 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 0.0002 0.0002 <0.001 <0.001 <0.001 <0.001 Bromoform 0.001 0.001 <0.001 <0.001 <0.001 <0.001 Bromomethane 0.0098 0.049 <0.005 <0.005 <0.005 <0.005 2-Butanone (MEK)4.2 4.2 <0.01 <0.01 <0.01 <0.01 Carbon Disulfide 0.7 3.5 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 0.005 0.025 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 0.1 0.5 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 0.14 0.14 <0.001 <0.001 <0.001 <0.001 Chloroethane 2.8 14 <0.01 <0.01 <0.01 <0.01 Chloroform 0.0002 0.001 <0.001 0.0016 0.0017 0.0012 Chloromethane 0.028 0.14 <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 0.7 3.5 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 0.005 0.025 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 0.007 0.035 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 0.07 0.2 0.0075 <0.005 <0.005 0.227 trans-1,2-Dichloroethene 0.1 0.5 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 0.005 0.025 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 0.001 0.005 <0.001 <0.001 <0.001 <0.001 trans-1,3-Dichloropropene 0.001 0.005 <0.001 <0.001 <0.001 <0.001 Ethylbenzene 0.7 1 <0.005 <0.005 <0.005 <0.005 2-Hexanone 0.288 0.288 <0.01 <0.01 <0.01 <0.01 Methyl-tert-butylether (MTBE)0.07 0.07 <0.005 <0.005 <0.005 <0.005 4-Methyl-2-pentanone (MIBK)NRO NRO <0.01 <0.01 <0.01 <0.01 Methylene Chloride 0.005 0.05 <0.005 <0.005 <0.005 <0.005 Styrene 0.1 0.5 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane 0.21 1.05 <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 0.005 0.25 0.174 0.0441 0.0459 7.46 Toluene 1 2.5 <0.005 <0.005 <0.005 <0.005 1,1,1-Trichloroethane 0.2 1 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 0.005 0.05 <0.005 <0.005 <0.005 <0.005 Trichloroethene 0.005 0.025 0.013 <0.005 <0.005 0.0986 Vinyl acetate 7 7 <0.01 <0.01 <0.01 <0.01 Vinyl chloride 0.002 0.01 <0.002 <0.002 <0.002 <0.002 Xylene 10 10 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier 1 Groundwater Remediation Objectives (GROs; 35 IAC 742, Appendix B, Table E) mg/L) unless noted otherwise NRO = No Remediation Objective MW4 VOCs Chemical Name Groundwater Sample Numbers Class II MW1 MW2 Groundwater Remediation Objective Class I MW3 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Groundwater Table (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 4/26/23 4/26/23 4/26/23 4/23/26 Acetone 1,000,000 1,000,000 <0.1 <0.1 <0.1 <0.1 Benzene 0.11 0.41 <0.005 <0.005 <0.005 <0.005 Bromodichloromethane 6,700 6,700 <0.001 <0.001 <0.001 <0.001 Bromoform 3.1 12 <0.001 <0.001 <0.001 <0.001 Bromomethane NRO NRO <0.005 <0.005 <0.005 <0.005 2-Butanone (MEK)10,000 48,000 <0.01 <0.01 <0.01 <0.01 Carbon Disulfide 67 210 <0.005 <0.005 <0.005 <0.005 Carbon Tetrachloride 0.02 0.76 <0.005 <0.005 <0.005 <0.005 Chlorobenzene 26 82 <0.005 <0.005 <0.005 <0.005 Chlorodibromomethane 2,600 2,600 <0.001 <0.001 <0.001 <0.001 Chloroethane NRO NRO <0.01 <0.01 <0.01 <0.01 Chloroform 0.07 0.15 <0.001 0.0016 0.0017 0.0012 Chloromethane NRO NRO <0.01 <0.01 <0.01 <0.01 1,1-Dichloroethane 180 580 <0.005 <0.005 <0.005 <0.005 1,2-Dichloroethane 0.054 0.22 <0.005 <0.005 <0.005 <0.005 1,1-Dichloroethene 24 74 <0.005 <0.005 <0.005 <0.005 cis-1,2-Dichloroethene 3,500 3,500 0.0075 <0.005 <0.005 0.227 trans-1,2-Dichloroethene 16 51 <0.005 <0.005 <0.005 <0.005 1,2-Dichloropropane 0.48 0.48 <0.005 <0.005 <0.005 <0.005 cis-1,3-Dichloropropene 0.14 0.52 <0.001 <0.001 <0.001 <0.001 trans-1,3-Dichloropropene 0.14 0.52 <0.001 <0.001 <0.001 <0.001 Ethylbenzene 0.37 1.4 <0.005 <0.005 <0.005 <0.005 2-Hexanone NRO NRO <0.01 <0.01 <0.01 <0.01 Methyl-tert-butylether 1,900 6,800 <0.005 <0.005 <0.005 <0.005 4-Methyl-2-pentanone NRO NRO <0.01 <0.01 <0.01 <0.01 Methylene Chloride 2.1 8.2 <0.005 <0.005 <0.005 <0.005 Styrene 310 310 <0.005 <0.005 <0.005 <0.005 1,1,2,2-Tetrachloroethane NRO NRO <0.005 <0.005 <0.005 <0.005 Tetrachloroethene 0.091 0.34 0.174 0.0441 0.0459 7.46 Toluene 530 530 <0.005 <0.005 <0.005 <0.005 1,1,1-Trichloroethane 1,000 1,300 <0.005 <0.005 <0.005 <0.005 1,1,2-Trichloroethane 4,400 4,400 <0.005 <0.005 <0.005 <0.005 Trichloroethene 0.34 1.3 0.013 <0.005 <0.005 0.0986 Vinyl acetate 160 550 <0.01 <0.01 <0.01 <0.01 Vinyl chloride 0.028 0.21 <0.002 <0.002 <0.002 <0.002 Xylene 30 93 <0.005 <0.005 <0.005 <0.005 * Illinois EPA Tier 1 Groundwater Remediation Objectives For Indoor Inhalation (IIROs; 35 IAC 742, Appendix B, Table H) All results in parts per million (mg/L) unless noted otherwise NRO = No Remediation Objective a = Carcinogenic b = Noncarcinogenic Project Number: EE231696-344 Table 6. ECG Groundwater Analytical Results (Indoor Inhalation) - VOCs Date Sampled VOCs Chemical Name Industrial/Commercial MW1 Groundwater Remediation Objectives for Indoor Inhalation Exposure Route Residential MW2 Groundwater Sample Numbers MW4MW3 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\Tables\Groundwater Vapor Table (344) Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 6/2/2023 6/2/2023 6/2/2023 2/12/2024 Acetone 750,000 0.848 0.4988 0.6722 0.1342 Benzene 0.37 0.0527 ND ND ND Bromodichloromethane 450,000 ND ND ND ND Bromoform 11 ND ND ND ND Bromomethane NRO ND ND ND ND 2-Butanone (MEK)6,400 0.0826 ND 0.0687 ND Carbon Disulfide 780 ND ND ND ND Carbon Tetrachloride 0.21 ND ND ND ND Chlorobenzene 69 ND ND ND ND Chlorodibromomethane 57,000 ND ND ND ND Chloroethane NRO ND ND ND ND Chloroform 0.11 ND ND ND ND Chloromethane NRO ND ND ND ND 1,1-Dichloroethane 690 ND ND ND ND 1,2-Dichloroethane 0.099 ND ND ND ND 1,1-Dichloroethene 240 ND ND ND ND cis-1,2-Dichloroethene 1,100,000 1.3679 ND ND 0.4441 trans-1,2-Dichloroethene 85 0.1185 ND ND ND 1,2-Dichloropropane 0.31 ND ND ND ND cis-1,3-Dichloropropene 0.9 ND ND ND ND trans-1,3-Dichloropropene 0.9 ND ND ND ND Dibromochloromethane 57,000 ND ND ND ND Dichlorodifluoromethane 270 ND ND ND ND Ethylbenzene 1.3 ND ND 0.2883 ND 2-Hexanone NRO ND ND ND ND Methyl-tert-butylether (MTBE)3,700 ND ND ND ND 4-Methyl-2-pentanone (MIBK)NRO ND ND 0.0791 ND Methylene Chloride 5.6 ND ND ND ND Naphthalene 0.11 ND ND ND ND Styrene 1,400 ND ND ND ND 1,1,2,2-Tetrachloroethane NRO ND ND ND ND Tetrachloroethene 0.55 318.78 27.0624 31.1319 118.6947 Toluene 6,200 0.075 ND ND 0.075 1,1,1-Trichloroethane 6,600 ND ND ND ND 1,1,2-Trichloroethane 170,000 ND ND ND ND Trichloroethene 1.5 9.8877 0.2107 0.1016 2.8588 Vinyl acetate 250 ND ND ND ND Vinyl chloride 0.29 ND ND ND ND Xylene 140 0.11 ND ND 0.11 * Illinois EPA Tier 1 Indoor Inhalation(Soil-Gas) Remediation Objectives For Indoor Inhalation (IIROs); 35 IAC 742, Appendix B, Table H) mg/m3) unless noted otherwise ND = Non-Detected BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 IIROs NRO = No Remediation Objective Date Sampled VOCs Chemical Name Soil-Gas Remediation Objectives for Indoor Inhalation Exposure Route Soil-Gas Vapor Sample Numbers Residential VP1 VP2 VP1AVP3 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\RACR\Tables\Soil-Gas Vapor Table (344) Add Testing Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Project Location: 729-739 Howard Street, Evanston, Illinois 2/12/2024 2/12/2024 5/3/2024 11/14/2024 Acetone 750,000 0.1321 0.0926 0.4893 1.3706 Benzene 0.37 ND ND ND 0.0081 Bromodichloromethane 450,000 ND ND ND ND Bromoform 11 ND ND ND ND Bromomethane NRO ND ND ND ND 2-Butanone (MEK)6,400 ND ND 0.0345 0.0375 Carbon Disulfide 780 ND ND ND ND Carbon Tetrachloride 0.21 ND ND ND ND Chlorobenzene 69 ND ND ND ND Chlorodibromomethane 57,000 ND ND ND ND Chloroethane NRO ND ND ND ND Chloroform 0.11 ND ND 0.0591 0.0039 Chloromethane NRO ND ND ND 0.0011 1,1-Dichloroethane 690 ND ND ND 0.0031 1,2-Dichloroethane 0.099 ND ND ND ND 1,1-Dichloroethene 240 ND ND ND ND cis-1,2-Dichloroethene 1,100,000 ND ND 0.0987 0.0122 trans-1,2-Dichloroethene 85 ND ND ND ND 1,2-Dichloropropane 0.31 ND ND ND ND cis-1,3-Dichloropropene 0.9 ND ND ND ND trans-1,3-Dichloropropene 0.9 ND ND ND ND Dibromochloromethane 57,000 ND ND ND ND Dichlorodifluoromethane 270 ND ND ND ND Ethylbenzene 1.3 ND ND 0.0125 0.0346 2-Hexanone NRO ND ND ND ND Methyl-tert-butylether (MTBE)3,700 ND ND ND ND 4-Methyl-2-pentanone (MIBK)NRO ND ND ND 0.0106 Methylene Chloride 5.6 ND ND ND ND Naphthalene 0.11 ND ND ND ND Styrene 1,400 ND ND ND 0.0043 1,1,2,2-Tetrachloroethane NRO ND ND ND ND Tetrachloroethene 0.55 9.4277 23.8746 20.4833 3.6626^ Toluene 6,200 ND ND 0.0219 0.0697 1,1,1-Trichloroethane 6,600 ND ND ND ND 1,1,2-Trichloroethane 170,000 ND ND ND ND Trichloroethene 1.5 0.058 0.0256 0.1139 0.086 Vinyl acetate 250 ND ND ND ND Vinyl chloride 0.29 ND ND ND 0.0014 Xylene 140 ND ND 0.046 0.1653 * Illinois EPA Tier 1 Indoor Inhalation(Soil-Gas) Remediation Objectives For Indoor Inhalation (IIROs); 35 IAC 742, Appendix B, Table H) mg/m3) unless noted otherwise ND = Non-Detected BOLD^ exceed the site-specific Illinois EPA Tier 1 IIROs, but below the Tier 2 site specific remediation objective BOLD/Shaded exceed the site-specific Illinois EPA Tier 1 IIROs NRO = No Remediation Objective Date Sampled VOCs Chemical Name Soil-Gas Remediation Objectives for Indoor Inhalation Exposure Route Soil-Gas Vapor Sample Numbers Residential VP2A VP3A VP5VP4 Y:\Projects\2023\Environmental\SRP\729-739 Howard Street, Evanston\RACR\Tables\Soil-Gas Vapor Table (344) Add Testing Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Exhibit C Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a Doc ID: 08fe413dbd7f4343bb22c8027011efc893e1b34a 729-39 Howard Street Highway Agreement Highway_Agreement...onmental.docx.pdf 08fe413dbd7f4343bb22c8027011efc893e1b34a MM / DD / YYYY Signed 08 / 12 / 2025 12:53:03 UTC-5 Sent for signature to Cynthia Grandfield (cgrandfield@cityofevanston.org) and Luke Stowe (lstowe@cityofevanston.org) from lthomas@cityofevanston.org IP: 50.171.242.186 08 / 13 / 2025 13:55:25 UTC-5 Viewed by Cynthia Grandfield (cgrandfield@cityofevanston.org) IP: 104.56.239.50 08 / 13 / 2025 13:56:16 UTC-5 Signed by Cynthia Grandfield (cgrandfield@cityofevanston.org) IP: 104.56.239.50 08 / 14 / 2025 13:27:09 UTC-5 Viewed by Luke Stowe (lstowe@cityofevanston.org) IP: 155.190.17.5 08 / 14 / 2025 13:27:43 UTC-5 Signed by Luke Stowe (lstowe@cityofevanston.org) IP: 155.190.17.5 The document has been completed.08 / 14 / 2025 13:27:43 UTC-5