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Soil Suitability/Nitrate Loading Study Addendum Letter <br /> Lange Twins Winery r,. Acampo, California Irerracon <br /> May 21, 2019 v Terracon Project No. NA197005 <br /> storage tanks. Other improvements include five septic tanks, an 1,248.5 SF leachfield, domestic <br /> groundwater well, four retention ponds, utilities, paved parking and drive areas, landscaping, and <br /> native vegetation. Jahant Slough is located along the northern site boundary. The facility process <br /> wastewater discharges to the existing ponds located on the northern portion of the site and is not <br /> included in this report. <br /> Based on information provided by Mr. Lange, the existing five septic tanks are located near the <br /> truck south restroom, caretaker house, bottling building, building #1 and tasting room. There are <br /> no septic tanks associated with the 1,300 SF office and approximately 24,400 SF warehouse <br /> buildings. Mr. Lange indicated the five septic tanks are connected to a single leach field located <br /> near the northwestern portion of the site. Each septic tank is connected to the leachfield either by <br /> gravity flow or via a lift pump system which enters a force main connected to the leachfield. We <br /> understand the future tasting room stand alone restroom and future administration buildings are <br /> proposed to be connected to the existing leach field. Refer to the Attachments and Exhibit 3- Site <br /> Detail for additional information. The following building and septic information was compiled from <br /> information provided by Mr. Lange. <br /> Table 1. <br /> Building Information. <br /> Building Year Number of Fixtures <br /> Building Size Septic Septic Connection <br /> Number Building ID (Square Tank Tank to Toilet <br /> feet) Installed Size Leachfield Sink Lavoratory (water Urinal Shower <br /> Closet) <br /> Truck South Lift pump <br /> 1 Restroom 136 2011 1,500 system to 0 2 2 0 0 <br /> force main <br /> Lift pump <br /> 2 Caretaker House 735 2014 1,200 system to 1 1 1 0 1 <br /> force main <br /> 3 Bottling 45,000 2005 2,000 Gravity 5 4 6 2 0 <br /> Building Flow <br /> 4 Building#1 24,330 2005 2,000 GravityFlow 4 2 3 1 0 <br /> Tasting Room <br /> with Lift pump <br /> 5 Commercial 2,024 2005 2,000 system to 6 2 2 1 0 <br /> force main <br /> Kitchen <br /> Future <br /> 6 Tasting Room 400 TBD 2,000 Gravity 0 1 5 0 0 <br /> Stand Alone Flow <br /> Restroom <br /> Future Lift pump <br /> 7 Administration 11,775 TBD 2,000 system to 3 6 7 2 0 <br /> Building force main <br /> Based on the information contained in the Table 1, the existing septic system currently has a <br /> holding capacity of 8,700 gallons. The proposed development will add an additional 4,000 gallon <br /> holding capacity for a total of 12,700 gallo7,a`hd2 11 fixtures. <br /> Responsive■ Resourceful ■ Reliable 4 <br />