LIC-WILLIAMS STREET 3 (PID 94085) MAY 2014 SUB SLAB AND INDOOR AIR TESTING RESULTS: 99 S. JAMES STREET 100 S. JAMES STREET

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1 LIC-WILLIAMS STREET 3 (PID 94085) MAY 2014 SUB SLAB AND INDOOR AIR TESTING RESULTS: 99 S. JAMES STREET 100 S. JAMES STREET

2 LIC-WILLIAM STREET 3 (PID 94085) SUB-SLAB & INDOOR AIR TESTING RESULTS PROPERTY ADDRESS: 99 James Street, Newark, Ohio DATE TESTED: 5/20/14 & 5/21/14 TESTING CONSULTANT: HzW Environmental Consultants, LLC Chemicals Tested 5/20/14 & 5/21/14 Sample Results in PPBV Sub-slab Indoor Air Residential Screening Level ppbv Source/Criteria (public health or regulatory agency established levels) Acetone ,000 Benzene Carbon Tetrachloride 20 UJ 30 EMEG (Chronic) Chlorobenzene UJ UJ 400/day EMEG (Intermediate) Chloroform 2.4 UJ 20 EMEG (Chronic) Chloromethane RfC (EPA) 1,1-Dichloroethane UJ UJ 120 OSWER VI Guidance 1,2-Dichloroethane UJ UJ 600 (Chronic) 1,1-Dichloroethene 0.27 UJ 20 (Intermediate) cis-1,2-dichloroethene UJ UJ 8.8 OSWER (EPA) trans-1,2- Dichloroethene UJ UJ 200 Methylene Chloride 1.7 UJ 300 Tetrachloroethylene (PCE) (Chronic) 0.15J UJ 6 RfC & 10-5 risk Toluene ,1,1-Trichloroethane 330 UJ 700 Trichloroethylene (TCE) (Chronic) (Intermediate) RfC & 10-5 risk Vinyl Chloride UJ UJ CREG (ATSDR)

3 The cumulative hazard and risk of indoor air concentrations for this industrial property is listed below. After the first sampling results ODOT asked the laboratory to report the estimated values that are less than their reporting limit (RL), but above their equipment s method of detection (MDL). The goal was to see if any traces of chemicals could possibly exist at a sample location in order to learn more about the site. KEY CHART TERMS Residential ppbv = units are measured in parts per billion by volume (ppbv) ppbv = parts per billion by volume EMEG = environmental media evaluation guide (ATSDR) ATSDR = Agency for Toxic Substances and Disease Registry Chronic (long-term) = exposure is considered more than a year (ATSDR) Intermediate = exposure greater than 14 days and less than a year (ATSDR) MRL= Minimal Risk Level (ATSDR) CREG= Cancer Risk Evaluation Guide (ATSDR) OSWER = Office of Solid Waste and Emergency Response for US. EPA 10-5 = Theoretical additional lifetime cancer risk calculation for chronic inhalation exposure at 10-5 equals an additional cancer risk of 1 in 100,000 persons. EPA = U.S. Environmental Protection Agency RfC = Reference Concentration (EPA) ND = The chemical was not detected above the reporting limit (RL) J = The chemical concentration is an estimated value below the laboratory reporting limit but above the method detection limit (MDL) UJ = The chemical concentration was not detected at or above the method detection limit (MDL) OHIO ENVIRONMENTAL PROTECTION AGENCY: CONTACT PERSON: Amber Kent Finkelstein, Public Involvement Coordinator, Ohio EPA Public Interest Center; Amber.Finkelstein@epa.state.oh.us or (614) OHIO DEPARMENT OF HEALTH: CONTACT PERSON: Greg Stein, Ohio Department of Health, Health Assessment Section, Community Involvement/Health Education; Greg.Stein@odh.ohio.gov or (614) Agency website:

4 Chemical Cumulative Hazard and Risk of Indoor Air Concentrations for 99 James St. (Sample Date: 5/20/14) Maximum Results µg/m 3b Indoor Air Standards a Cancer Non-Cancer Standard c Standard d µg/m 3 µg/m 3 Acetone 26 N/A g 140, E E-04 Benzene E E-01 Chloromethane 1 NA E E-03 Toluene 130 N/A 22, E E-03 Trichloroethene E E-01 Cumulative Cancer Risk h Cumulative Non-Cancer Hazard i Notes: a. The Indoor Air Standards shown are the U.S. EPA Industrial Air RSLs. Cancer Risk Ratio e Non-Cancer Hazard Ratio f 1.36E b. µg/m 3 = micrograms per metter cubed c. Cancer Standard at a cancer risk of 1E-05. d. Non-Cancer Standard at a non-cancer hazard of 1. e. Ratio determined by dividing the maximum result by the cancer standard. f. Ratio determined by dividing the maximum result by the non-cancer standard. g. N/A = Not Applicable h. No remediation or mitigation necessary for a cumulative cancer risk below the risk goal 1E-05. i. No remediation or mitigation necessary for a cumulative non-cancer hazard below the non-cancer hazard goal of 1.

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7 LIC-WILLIAM STREET 3 (PID 94085) SUB-SLAB & INDOOR AIR TESTING RESULTS PROPERTY ADDRESS: 100 James Street, Newark, Ohio DATE TESTED: 5/20/14 & 5/21/14 TESTING CONSULTANT: HzW Environmental Consultants, LLC Chemicals Tested Sub-slab Lobby 5/20/14 & 5/21/14 Sample Results in PPBV Sub-slab Closet Sub-slab Closet Duplicate Indoor Air in Office Indoor Air in Office Duplicate Indoor Air Closet Residential Screening Level ppbv Source/Criteria (public health or regulatory agency established levels) Acetone ,000 Benzene UJ 0.13J UJ Carbon Tetrachloride UJ UJ 0.1J UJ 30 EMEG (Chronic) Chlorobenzene UJ UJ UJ UJ UJ UJ 400/day EMEG (Intermediate) Chloroform UJ EMEG (Chronic) Chloromethane UJ UJ UJ RfC (EPA) 1,1-Dichloroethane UJ UJ UJ UJ UJ UJ 120 OSWER VI Guidance 1,2-Dichloroethane UJ UJ UJ UJ UJ UJ 600 (Chronic) 1,1-Dichloroethene UJ UJ UJ UJ UJ UJ 20 (Intermediate) cis-1,2- OSWER VI UJ UJ UJ UJ UJ UJ 8.8 Dichloroethene Guidance trans-1,2- Dichloroethene UJ UJ UJ UJ UJ UJ 200 Methylene Chloride UJ UJ 0.1J J 300 Tetrachloroethylene (PCE) (Chronic) UJ UJ UJ 6 RfC & 10-5 risk Toluene UJ 0.12J 0.14J (Chronic) 1,1, UJ UJ UJ 700 Trichloroethane (Intermediate) Trichloroethylene (TCE) J 0.12J 0.17J 0.4 RfC & 10-5 risk Vinyl Chloride UJ UJ UJ UJ UJ UJ CREG (ATSDR)

8 After the first sampling results ODOT asked the laboratory to report the estimated values that are less than their reporting limit (RL), but above their equipment s method of detection (MDL). The goal was to see if any traces of chemicals could possibly exist at a sample location in order to learn more about the site. KEY CHART TERMS Residential ppbv = units are measured in parts per billion by volume (ppbv) ppbv = parts per billion by volume EMEG = environmental media evaluation guide (ATSDR) ATSDR = Agency for Toxic Substances and Disease Registry Chronic (long-term) = exposure is considered more than a year (ATSDR) Intermediate = exposure greater than 14 days and less than a year (ATSDR) MRL= Minimal Risk Level (ATSDR) CREG= Cancer Risk Evaluation Guide (ATSDR) OSWER = Office of Solid Waste and Emergency Response for US. EPA 10-5 = Theoretical additional lifetime cancer risk calculation for chronic inhalation exposure at 10-5 equals an additional cancer risk of 1 in 100,000 persons. EPA = U.S. Environmental Protection Agency RfC = Reference Concentration (EPA) ND = The chemical was not detected above the reporting limit (RL) J = The chemical concentration is an estimated value below the laboratory reporting limit but above the method detection limit (MDL) UJ = The chemical concentration was not detected at or above the method detection limit (MDL) OHIO ENVIRONMENTAL PROTECTION AGENCY: CONTACT PERSON: Amber Kent Finkelstein, Public Involvement Coordinator, Ohio EPA Public Interest Center; Amber.Finkelstein@epa.state.oh.us or (614) OHIO DEPARMENT OF HEALTH: CONTACT PERSON: Greg Stein, Ohio Department of Health, Health Assessment Section, Community Involvement/Health Education; Greg.Stein@odh.ohio.gov or (614) Agency website:

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