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Health and Safety Plan Page 2 STOCKTON PROMENADE PROPERTY June 12,2008 WKA No. 7345.05 NIOSH/OSHA/USCG/EPA Occupational Health and Safety Guidance Manual for Hazardous Waste Activities, October 1985. Because site conditions are subject to change and unforeseen conditions may arise, amendments or additions to this HASP may be needed during the course of the proposed work. Only the contractor, with the assistance of a Certified Industrial Hygienist or Environmental Consultant,may modify the HASP. WKA will make this HASP available for review by other persons and firms involved with the proposed site activities; however the other firms will be required to posses a separate HASP prepared specifically for their operations. This HASP will be available at the work site for review by WKA employees, employee designated representatives, Division of Occupational Safety and Health(DOSH) representatives, and to personnel of other federal, state, or local agencies with regulatory authority over the soil removal activities at the site. 1.1 Site Description The site consists of a narrow strip of land located along the southern side of the Stockton channel and the eastern side of the Mormon Slough, north of Weber Avenue in Stockton, California. The site is currently vacant and located with in the City of Stockton RDA's West End project area. The site is part of the City of Stockton's Marina-Promenade project and current plans include development of the site as public waterfront access to the Stockton Channel. Total petroleum hydrocarbons as diesel (TPHd) and as motor oil (TPHmo), as well as the organochlorine pesticide, dieldrin were identified as the primary constituents of concern (COCs) during subsurface soil investigation activities conducted between February 2007 and November 2007. Soil containing these COCs will be excavated and removed to an off-site disposal facility to reduce the concentrations of COCl below their remediation goals established in the Remedial Action Plan (RAP) and approved by the Regional Water Quality Control Board (RWQCB). 2.0 EXPOSURE HAZARDS The primary exposure hazard during site removal activities includes potential inhalation exposure to airborne particulates that may include COC concentrations. Secondary exposure hazards include the potential for direct dermal contact and ingestion of soil. The following sub- sections describe the potential exposure routes.