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CLEANUP AND ABATEMENT ORDER PORT OF STOCKTON FUEL TERMINALS SAN JOAQUIN COUNTY Company; and Union Pacific Railroad Company shall clean up and abate the soil contamination and ground water pollution in and near the Port of Stockton forth- with by complying with the following: Action Completion Date 1. Prepare and submit a Feasibility Study for 3 months Board approval evaluating the economic and technical feasibility of an interim ground water extraction/treatment system for known areas of contamination. This report must include disposal options for the treated ground water and tentative design for the extraction and treatment system. 2. Prepare and submit a plan for Board approval 3 months to completely define the horizontal and vertical extent of ground water pollution on and off-site. Definition of the ground water pollution plume(s) shall consist of delineating the contamination to the extent necessary to accomplish clean-up objectives for hydrocarbon constituents. 3. Implement the workplans detailed in items upon approval 1 and 2, above. 4. Prepare and submit for Board approval a 9 months Pollution Assessment Report which completely describes the horizontal and vertical extent of ground water pollution on and off-site. The Report shall include: a. Maps showing all monitoring well locations and estimated pollution contours; b. Descriptions of all work performed, including, but not limited to, all monitoring well logs, drilling and construction details, and well development procedures; c. All analytical results of samples collected from each well including results of duplicates, spikes, internal standards, and surrogates. Purging and sampling procedures must also be submitted. Detection limits and methodology shall be according to EPA methods.