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C A M B R I A Ms. Lori Duncan November 18,2005 As previously stated, the extracted groundwater will be pumped from the Solleco unit moisture separator into a 500-gallon transfer tank. To prevent overflow, the liquid-level switch in the transfer tank will shut off the Solleco unit when the tank is full. Extracted groundwater will be pumped from the transfer tank using a transfer pump through silt filters and then three 2,000- pound aqueous-phase carbon vessels (in series) prior to discharge to the sanitary sewer. Flow meters, pressure gauges, and sample ports will be installed to control and monitor system operation. An electrical control panel with programmable logic controller will interlock and operate the dual-phase system controls. A telephone autodialer will be installed to remotely notify Cambria © of system shutdown events. The system equipment will be designed with capacity to expand to additional wells and to handle additional groundwater flow, if necessary in the future. Figure 4 presents the layout of the DPE system. Figure 5 presents a process flow diagram of the DPE system. Cambria will complete the civil, mechanical, and electrical details of the design so that the required permits can be obtained and a contractor can install the system. A Califomia-licensed professional engineer will review and approve the final DPE system design. Air Emissions Permitting:The Solleco unit will be installed and operated under the authorization of a San Joaquin Valley Air Pollution Control District (SJVAPCD) permit to operate. Cambria submitted an application for this permit on October 31,2005. Utilities: Cambria will coordinate installation of all utilities required to operate the proposed DPE system. The Solleco unit requires a 240-volt, three-phase, 100-ampere electrical service. Cambria will provide Pacific Gas and Electric with all required information and fees for procuring electrical service. The installation contractor will provide and install all equipment or facilities to accommodate these utilities. Water Discharge Permit: Under the authorization of a wastewater discharge permit from OMI, treated groundwater will be discharged to an existing on-site sanitary sewer lateral. Cambria will contact OMI to determine the preferred discharge point and to ascertain application requirements. Building Permits: Cambria will submit engineered drawings, specifications, calculations and fees as required to the City of Stockton for design review and issuance of applicable construction permits. The building permit application will be approved by a California-licensed professional engineer prior to submittal. Request for Bid: Cambria will prepare a request-for-bid for construction services to install the DPE system. A contractor will be selected based on quality of bid, availability, and quality of service. 10