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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION ORDER NO. 5-01-114 WASTE DISCHARGE REQUIREMENTS FOR PILKINGTON NORTH AMERICA, INC. PILKINGTON GLASS FURNACE FACILITY SAN JOAQUIN COUNTY The California Regional Water Quality Control Board, Central Valley Region(hereafter Board), finds that: 1. Pilkington North America, Inc. formerly known as Libbey Owens Ford Company(hereafter Discharger) submitted a Report of Waste Discharge, dated 19 February 2001, to treat and dispose of industrial wastewater generated in a float glass furnace facility and domestic wastewater generated by employees. 2. The property is on Assessor's Parcel Numbers 195-270-62 and 195-270-64, which is owned by the Discharger. The facility is located at 500 East Louise Avenue, Lathrop, San Joaquin County, as shown on Attachment A, which is attached hereto and made part of this Order by reference. The facility is located on Section 35, Tl S, R6E, MDB&M. 3. Libbey Owens Ford (LOF) occupied the facility for many years. Pilkington acquired LOF in 1986 and is currently doing business as Pilkington North America, Inc. 4. Waste Discharge Requirements Order No. 91-056, NPDES No. CA0004839, adopted by the Board on 22 February 1991,prescribes requirements for discharge of wastewater from the facility to the San Joaquin River. However, the Discharger has not discharged to surface water since the early 1990's and the NPDES permit has expired and is no longer applicable. Wastewater has been applied to the facility's land area surrounding the facility buildings. Order No. 91-056 is neither adequate nor consistent with current plans and policies of the Board. 5. The facility was constructed in 1962 and began manufacturing tempered and laminated automotive glass products. The factory was expanded in 1964 and began manufacturing float glass. The area within the site boundaries consists of approximately 176 acres, of which approximately 75.4 acres are available for land application of wastewater. 6. Pilkington manufactures and fabricates float glass for use in the architectural and automotive markets. Raw materials required to manufacture float glass include sand, sodium carbonate, calcium carbonate, dolomite, saltcake, and other small volume materials, depending on the type of glass produced. 7. Raw materials are stored in silos or enclosed areas and are batch mixed and conveyed to the glass furnace. The furnace melts the raw materials into liquid glass. Peak temperature of the furnace is approximately 3,000 degrees Fahrenheit. The refractory in the furnace was replaced in the mid-1990's with a no or low chromium containing refractory material.