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City of Stockton Redevelopment Agency B34604.01a February 16, 2001 Page 3 • The"hot wash tank" observed to the east of the existing structure; and • The area of exposed soil observed in the concrete cutout between the"hot wash tank" and the existing structure location of a possible UST. 3.0 PURPOSE AND SCOPE The purpose of the proposed work is to assess the environmental concerns noted above on three of the Gleason Park Properties during a Phas I Environmental Site Assessment(PHASE I). The three properties were identified during the PHA SE I as 300 California Street, 323 American Street, and 328 California Street. This work is intended to be preliminary in nature. Additional soil and/or groundwater assessment may be required 3ased on the findings of this work. The following work is proposed to achieve the above referenced objective: 300 California Street: • Hand-auger one soil boring to 10 f et BSG in the vicinity of the clarifier within the on-SITE structure and collect soil samples at 5 and 10 feet BSG for analysis. Analyze the soil sample collected at 5 feet BSG for total recoverable petroleum hydrocarbons(TRPH),select metals (cadmium, chromium, lead, nicke , and zinc), and ethylene glycol. and ' • Hand-auger three soil borings to 5 feet BSG in the stained soil observed along the eastern edge of the concrete apron adjoi ' g the on-SITE structure and collect soil samples at 1, 3, and 5 feet BSG for analysis. Anal ze soil samples from 1 foot BSG for TRPH,select metals (cadmium, chromium, lead, nickel, and zinc), and ethylene glycol. 323 American Street: • Hand-auger one soil boring to 10 1 eet BSG in the vicinity of the clarifier located within the on-SITE structure and collect soil samples at 5 and 10 feet BSG for analysis. Analyze the soil samples collected at 5 feet B G for TRPH, select metals(cadmium, chromium, lead, nickel, and zinc), and ethylene gl col; and • Hand-auger one soil boring to 10 feet BSG in the vicinity of the hydraulic lift located within the on-SITE structure and collect soil samples at 10 feet BSG for analysis. Analyze the soil sample collected at 10 feet BSG for TRPH. 328 California Street: 1 • Hand-auger three soil borings to 5 feet BSG in the vicinity of the"dip tanks"located within the on-SITE structure and collect oil samples at 5 feet BSG for analysis. Analyze the soil samples collected at 5 feet BSG f r selected metals(cadmium,chromium, lead,nickel,and zinc), ethylene glycol, and pH;