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Kennedy/Jenks Consultants for improvement in flavor, stabilization of color in red wines, and for subsequent microbial and cold stabilization. The cation exchange process in the Facility consisted of passing approximately 6% sulfuric acid through the ion exchange columns to load the resin with hydrogen cations. Excess sulfuric acid was washed off of the column with water into a surge tank where it was neutralized with ammonium hydroxide, and then discharged to evaporation and percolation basins 1 through 5. Cold stabilization was used to remove potassium from the wine in the form of the precipitate potassium bitartrate. The potassium bitartrate was filtered out of the wine using the pressure leaf filters and trapped in the filter powder. Operations at the distillery onsite were terminated under Canandaigua ownership on 12 April 2001. According to the RWD (Kennedy/Jenks 2002), for Canandaigua's refrigeration cooling water, approximately 77% was single-pass cooling water. The remaining 23% was used in the cooling towers, where the water was recycled and treated to prevent scale buildup; the TDS concentration of this water was approximately three times the fresh water feed. Two boilers located in the southeast corner of the Facility provided hot water for operations. A water softener(ion exchange) located near the boilers processed the boiler feed water. Sodium chloride salt has been used in the cation exchange water softening process, including Hawksley Series 125 Sodium Hydroxide (NaOH), and Hawksley Series 580 colloidal. Water supply used in the Facility operations has been obtained from three groundwater production wells located on the Site. Production well #1 has in the past been the primary supply well. The other production wells have been operated simultaneously or alternated. Groundwater was piped to the Facility distribution system. 1.3.2 Historical Process Water Management The Facility has a rapid infiltration land application system consisting of seven basins used for primary treatment of operations process water, vacuum filter solids process water, non-contact cooling water effluent, and stormwater. The basins are comprised of one distribution system and 98 checks. Before discharging to the basins, process water was conveyed north of the Facility along open ditches (distribution channels) and then directed manually by Facility personnel via check gates to the appropriate basin. The distribution channel runs north-south between basins 1, 3 and 2, 4. In addition, it runs east-west between the Facility and basins 1-4 and along the northern border of basin 5. Historically, in accordance with WDR 91-223, one-pass, non-contact cooling water effluent and winery process water were segregated for treatment via separate evaporation and percolation basins. The process water streams, including crush wash, vacuum filter solids and stormwater, were pumped from the Facility's east and west sumps to basins 1 through 5 (98 acres). Non- contact cooling water was pumped to basins 6 and 7 (10 acres)from the non-contact cooling water lift station. Basins 1 through 3 are 22 acres each, and are divided into approximately 16 checks. Basin 4 is 11 acres and contains 8 checks. Basin 5 is 21 acres and contains 12 checks. Basins 6 and 7 consist of 2 and 8 acres, respectively(10 acres total), with 8 checks total. In addition, there is a segregated 1-acre basin adjacent to basin 5 in which vacuum filter powder was allowed to settle. After settling, process water from these basins was sent to the distribution channel for basins 1 through 5. Groundwater Investigation Work Plan Page 4 Barrel Ten Quarter Circle Winery, Escalon, California 9:Vs-grouplad6nWb1031030118.08_barrelten109-reportslgw invest wrk pInitextdoc