SITE INFORMATION AND CORRESPONDENCE

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WASTE DISCHARGE REQUIREMENTS -2- LIBBEY-OWENS-FORD COMPANY LATHROP PLANT NO. 10 SAN JOAQUIN COUNTY 4. The facility collects approximately 18,000 gpd of ground water which infiltrates the facility basement. The total dissolved solids (TDS) of the ground water is high, in the range of 3,800 mg/1 . 5. All six discharges are combined with the basement infiltration water and up to 0.625 mgd of storm water runoff in a one-million-gallon reservoir. The combined discharge, a maximum of 2.1 mgd, is discharged from the reservoir through Outfall 001 (see Attachment A, hereby made part of this Order) into the San Joaquin River, a water of the United States, at a point in the NW 1/4 of Section 3, T2S, R6E, MDB&M. 6. The Discharger proposes to maximize land disposal of its effluent by irrigating 30 acres of lawn area on-site, and/or discharging to two off- site evaporation/percolation ponds having a combined area of 15 acres, as shown on Attachment B, hereby made part of this Order. The ponds are on Assessor Parcel Nos. 241-390-17 and 241-390-19, owned by the Discharger. 7. The Report of Waste Discharge describes the existing combined discharge as follows: Average Annual Flow: 0.438 mgd Average Annual Suspended Solids: 9.7 mg/l Average Annual BODS: 1.9 mg/l Average Annual Total Phosphorus: 0.30 mg/l Average Annual Oil and Grease: 3.6 mg/l 8. The discharge is presently governed by Modified Waste Discharge Requirements Order No. 88-021 , adopted on 29 January 1988, which expired on 1 April 1990. Order No. 88-021 was a modification of Order No. 85-069. 9. The Environmental Protection Agency (EPA) and the Regional Board have classified this discharge as a major discharge. 10. The Board has adopted a Water Quality Control Plan, 2nd Edition, for the Sacramento-San Joaquin Delta Basin (5B) which contains water quality objectives for all waters of the basin. These requirements are consistent with that Plan. 11. EPA issued final Effluent Guidelines and Standards in 40 CFR, Part 426, Subparts E, F, and G, on 1 July 1988 for the Glass Manufacturing Point Source Category; Float Glass, Automotive Glass Tempering, and Automotive Glass Laminating Subcategories. These regulations establish Final Effluent Limitations for "Best Available Technology (BAT) and Best Practicable Technology (BPT)" for each of the subcategories. These requirements are consistent with the EPA Effluent Guidelines Standards.