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Safety and Health Plan <br />Tracy Ridge Tracy, California <br />March 27, 2019 Terracon Project No. NA187052.1 lierracon <br />Xylene is a mild eye and mucous membrane irritant, primary skin irritant and a central nervous <br />system depressant. Ingestion causes severe gastrointestinal upset and creates an aspiration <br />hazard. Chronic inhalation results in symptoms that resemble acute poisoning, but are more <br />severe systemically. <br />TETRACHLOROETHYLENE (PCE) <br />Permissible Exposure Limit <br />25 ppm ACGIH TLV <br />PCE is irritating to the respiratory tract, eyes, and kidneys, and can cause impaired cognitive and <br />motor function performance. Absorption of PCE can cause long term health effects including <br />cancer and reproductive abnormalities. <br />TRICHLOROETHYLENE (T_C .E) <br />Permissible Exposure Limit <br />10 ppm ACGIH TLV <br />TOE is irritating to the respiratory tract, eyes, and kidneys, and can cause impaired cognitive and <br />motor function performance. Absorption of TOE can cause long term health effects including <br />cancer and reproductive abnormalities. <br />PESTICIDES, HERBICIDES, PAHs, AND METALS <br />Due to the unknown nature and concentrations of the above potential contaminants, Terracon <br />staff will follow standard safety procedures and wear protective gloves while handling all soils. A <br />RID will be regularly used to screen soil and to monitor potential breathing zone hazards. All field <br />staff will be reminded to thoroughly wash their hands before eating to reduce the chance of <br />chemical exposure. <br />7.0 Drilling Safety Precautions <br />Project activities will consist of drilling 5 soil borings to 10 feet below grade surface (bgs), 14 soil <br />borings to 5 feet bgs, two borings to 2 feet bgs, and two surface soil samples on portions of the <br />site. The borings will be advanced using a track-mounted, direct push drill rig to a depth of 2, 5, <br />and 10 feet bgs. If groundwater is encountered, samples will be collected. <br />The personal protective equipment and direct-reading air monitoring requirements specified <br />below are designed to prevent personnel exposure to contamination in excess of permissible <br />exposure limits. Personnel must remain aware of the potential for fire if soils saturated with <br />flammable liquids, such as gasoline, are encountered. <br />8.0 Site Physical Hazards/Precautions <br />8