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13.1 Flammable AtmoWherg <br /> In the event that CGI or OVM readings in work areas (outside tanks) exceed 10 percent LEL, <br /> work will be suspended, monitoring will be continued as necessary to isolate the area, and <br /> some or all of the following engineering controls will be implemented: <br /> 1. Contaminated soils will be sprayed down, if necessary, with deodorizing <br /> Chemicals to reduce vaporization of volatile organic compounds(VOCs) or <br /> permeation of other gases. <br /> 2. Vapors from pooled petroleum product will be suppressed, if necessary, by <br /> spraying with foam or an appropriate chemical suppressant. <br /> 3. Portions of the stockpiled soil will be covered with plastic sheeting. <br /> 4. Air movers will be used to ventilate areas of concentration to below 10 <br /> percent LEL. <br /> 5. Wells emitting excessive chemical concentrations will be ventilated, capped <br /> or shut in, as necessary. <br /> 13.2 Toxic Atmosphere <br /> In the event that airborne concentrations of the chemicals of concern exceed the TLV, the <br /> above engineering control measures will be implemented to reduce concentrations to or below <br /> the TLVs, if practical. If such reduction is not possible, PPE will be used to limit worker <br /> exposure during operations. <br /> In the event that airborne concentrations of the chemicals exceed twice the TLV, work will <br /> be suspended and appropriate engineering controls will be implemented to reduce <br /> concentrations to or below twice the TLV. <br /> 14.0 RESPONSIBLE PARTIES <br /> Responsible parties involved with the Underground Storage Tank Removal Project: <br /> • Client: City of Stockton <br /> Address: Dept. of Public Works <br /> 425 N. El Dorado Street, Rm 317 <br /> Stockton CA 95202 <br /> • Contact: R. Nickerson III <br /> Title: Site Remediation Manager <br />