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Soil Suimbilm &Nitrate Lading 1n.ds Pagc Proposed Smma Winery, 17321 Devi,Rd.Lodi CA Pmim No, 670.FB .huh 22.2013 3.0 EXISTING AND PROPOSED SEPTIC TANKS 3A Existing Septic Systems \o septic sewage systems are on the site, nor does it appear that an} have ever been present A request was made of the EHD staff to search their computerized records, and the representative confirmed that no permits were available except for the pending permit. 3.2 Septic Systems in the Area An attempt was made to mount the number of rural residences from a review of a 201 I air photo of the area. The assumption was made that one septic system is associated with each residence. using this method, we concluded that at least three systems lie within the ',,-mile circle surrounding the site and at about 12 systems are within the I-mile circle surrounding the Properly (see topographic snap in Appendix A and aerial view in Appendix B) Permits pertaining to several nearby septic systems were reviewed at the EHD offices on May 10, 2013 The following table summarizes the permits found in the records (sec Appendix F for deans) Street Na Date capselty, Details Purpose 17894 Dai is Rd no Me rec nds 17831 Davis Rd l i? 1100 Gal. 1'wo 73 ft Leash Lines Nea Scaem 17251 Daus RJ I Hl I,50U Gal. Two 80 it Leach Lines a Pix Repair 1614 W Turner Rd 3 Y.7 11U0 Gol One DW d Leach Linc Re ace Grease Tra 1M t W 1'unw Rd 9'8I 1100 Gal. Remit seepage Pit Based on these records, It appears the septic systems in the nearby area have operated consistently, but in at least two cases, a seepage pit was added to assist in percolation. 3.3 Existing and Proposed Septic System Usage According to the Stama marketing plan, the operation will employ four full-time workers and 5 part time workers. The tasting room is expected host up to 200 customers on its busiest days and average 500 per week In addition to routine winemaking operations, 30 special marketing events per year will be held with a macimum attendance of 1511 people. The facility will be equipped with a commercial kitchen. which will serge a meal to guests for about 25 percent of the marketing events. The wipery will have a residential caretaker. The caretaker residence will be a 1.200 square- foot 3-bedroom unit The residence will be connected to the main commercial septic system The San Joaquin County Sewage Standards (END, 2003). Table 6 1 15, offers guidance for assumptions regarding septic flow rates The able does not, however. cover all possibilities In such cases flow estimates are to be based on projected actual water use. Visitors to a 2937 Venemmi Ave..;Bim Gen-Phaw Vw1ronmentd Inc. 1'hnne. U09)3b9-u193 M.tilermv CA 45335 Pev 0091 559a129S