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Proposal for Limited Site Investigation Irerracon Accurate Air Engineering, Inc. w Lodi, California August 18, 2011 g Terracon Proposal No. 60110154 Assessment Manual (CAM) 17 metals, and polynuclear aromatic hydrocarbons (PAHs) above relevant laboratory reporting limits in the on-site soils and groundwater as a result of potential releases from the RECs identified for the site. Following receipt of your executed Agreement for Services and no later than 48 hours prior to intrusive activities, Terracon will contact a utility locator (DigAlert) to arrange for underground utility locates at the above referenced site. Terracon will additionally depend on assistance from client and/or site contact for location of private underground utilities at the site. Terracon will develop a generic safety plan to be used by our personnel during field services. At this time, we anticipate that an Occupational Safety and Health Administration (OSHA) Level D Personal Protective Equipment (PPE) Level D work uniform consisting of hard hats, safety glasses, protective gloves, and steel-toed boots will be required by all personnel in the work area. It may become necessary to upgrade this level of protection, at additional cost, while sampling activities are being conducted in the event that petroleum or chemical constituents are encountered in the on-site soils, soil gas, or groundwater, which presents an increased risk for personal exposure. The LSI report will be prepared for the exclusive use and reliance of Accurate Air Engineering, Inc., and Comerica Bank. Use or reliance by any other party is prohibited without the written authorization of Accurate Air Engineering, Inc., and Terracon. Reliance on the LSI report by the client will be subject to the terms, conditions and limitations stated in this proposal, the LSI report, and our agreement. Reliance on the LSI report by Comerica Bank will be subject to the terms contained in Comerica's Environmental Consultant Agreement (Master Agreement) with Terracon (September 12, 2003). The limitation of liability defined in the Master Agreement is the aggregate limit of Terracon's liability to Comerica Bank. The limitation of liability defined in our Agreement for Services with of Accurate Air Engineering, Inc., is the aggregate limit of Terracon's liability to the client and other relying parties other than Comerica Bank. Soil Borings and Temporary Groundwater Sampling Points A total of six soil borings will be advanced on site through the warehouse floor (SV-1 and SV-2 to a proposed depth of five feet below grade surface [bgs]), near the clarifier (B-3 to a proposed depth of eight feet bgs and SV-4 to a proposed depth of five feet bgs), near the waste oil storage pad (B-5 to a proposed depth of five feet bgs); and near the former coal storage area (B-6 to a proposed depth of five feet bgs). The proposed boring locations are presented as Figure 1 in the attachments. DrA lingr services-will be performed by a California licensed drilling i;bntractor and over5r ►1'by{r'i'"r_:r. rnnil h:5 nc,rk staff scientist and a California licensed Professional Geologist from Terracon. Drilling equipment will be cleaned using a high-pressure washer prior to beginning the project and before,beginning each boring. Non-dedicated sampling equipment will be cleaned-using an, 2 Reliable ■ Responsive ■ Resourceful