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CLEANUP AND ABATEMENT OM_ < NO R5-2008-0707 -7- MARTIN OPERATING PARTNERSHIP AND THE PORT OF STOCKTON MOLTEN SULFUR PROCESSING PLANT SAN JOAQUIN COUNTY swales, ditches, and piping. The surface area of the prill stockpile and sulfur-contact areas shall be included. A hard copy (11"x17") and electronic format (i.e., PDF) file shall be submitted. A 12-month water balance with the local monthly mean precipitation (based on a 100-year precipitation event), inflow, storage capacity, outflow, evaporation, and rainfall from a 100-year 24-hour event storm event. Inflow shall include drainage from the sulfur-contact surface areas, leachate, process water, make-up water, any leachate that enter sumps, and any other liquid that enters the process. The source and monthly usage of supply water shall be included in the water balance. An Operations and Maintenance Plan (O&M Plan) for any part of this facility that stores sulfur, stores or conveys leachate or liquids that have come in contact with sulfur, and for any structure that is designed to contain the sulfur, leachate, and prill. The O&M Plan shall contain a list of all sumps, ditches, swales, above ground storage tank (ASTs), and piping that contain or convey sulfur contact-water or leachate. The O&M Plan shall contain a copy of the comprehensive site map (described above). At a minimum, the O&M Plan shall contain a routine schedule, procedures, and logbooks or forms to document work, as follows: The annual inspection and leak detection tests, repairs, and retests for the AST, all sumps, and leachate conveyance systems. Logbook (or similar) to record the leak detection test results. Logbook (or similar) to schedule and perform repairs on any equipment that failed the leak detection test. Measures to prevent prill from discharging outside the prill storage area, including measures to prevent the discharge of prill off of the overhead conveyor (that dumps prill onto the stockpiles). Measures to prevent the formation of ponded surface water (with a pH less than 6.5 SU or greater than 8.5 SU) outside the prill storage area. 3. By 31 January 2009, the Discharger shall submit the following: Certification that a new wall to match the existing east wall has been installed on the east side of the stockpile area. Certification that the below grade vaults, sumps, and basins have been epoxy- coated. Certification that the leachate sumps and leachate conveyance system have passed any leak detection tests. Verification that poles and additional windscreens have been installed around the entire perimeter of the prill storage area. Certification that stockpiles do not, and will not at any time in the future, extend above the upper limits of the windscreens. The certification must include the