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KLEINFELDER • "The existence of residual contamination from the leaking ur derground storage tank and remediation case on the subject property." The following scope of work was developed to evaluate thprevious listed. PROPOSED SERVICES This proposal details the scope of work for a Phase II Environmental Site Assessment of the property. Please note that the intent of a Phase II ESA is to follow up on concerns identified in the Phase I ESA. It is not the intent of a Phase II ESA to identify the extent of contamination or ascertain cleanup costs for the contaminants (if present). Said services may be provided following the proposed services (if contamination exists), at an additional cost. Also, please note that findings/opinions, conclusions and recommendations not mentioned in this proposal are either general recommendations or statements for the proerty, related to offsite properties, or were not requested to be addressed by the client in this pt posal. A proposal can be issued by Kleinfelder to address any additional concerns, upon the request of the client. Kleinfelder's following tasks address both soil and groundwater sampling. Soil sampling is proposed related to past site operations related to chemical storage, steam cleaning area, former underground storage area, soil excavation stockpiles and potential chemical application areas. Groundwater sampling is proposed to assess offsite sources of concern and the current status of groundwater quality near the former UST area. The following tasks detail our scope of services. Task 1 — Shallow Soil Samplin8 Kleinfelder proposes to collect a total of 54 discrete soil samples from 30 shallow hand auger borings throughout the subject site. Four of the samples will be analyzed as discrete samples and 32 will be composited into 2 or 4-point composite samples. Eighteen samples will be collected at deeper depths and put on hold pending the results of the shallow soil sampling results. The shallow boring depths will range from surface to approximately 3-feet below ground surface (bgs). Approximately 18 asphalt corings will be conducted for shallow sampling in the southern portion of the site near the steam clean area and former pesticide storage area. The soil samples will be obtained using a hand auger and slide-hammer sampling device. Hand auguring techniques are less invasive than drilling, and (should be sufficient for the shallow sampling depths proposed. The hand auger will be used to advance the soil boring to the desired sampling depths. Soil samples are obtained by driving a 2-inch diameter by 6-inch long stainless steel tube into the soil using a slide hammer, forcing soil into the tube. The tube is removed from the boring and sealed with Teflon sheeting and plastic end caps. To reduce the potential for cross-contamination, downhole sampling equipment will be cleaned with a laboratory grade detergent (liquinox) followed by multiple distilled water rinses prior to collecting each soil sample. The soil samples collected will be labeled, and placed in at iced cooler pending transportation to the analytical laboratory under chain of custody protoco s. The hand auger borings will be backfilled with the soil cuttings generated during sampling. 02001PROP.ENV/ST03P327 Page 2 of I l ©2003 Kleinfelder,Inc. September 3,2003