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12958/12970 E Jahant Road Project No. 2022-00037 Page 16 <br />There is currently a 3 -bedroom residence with associated septic system onsite. In addition, <br />a proposed 2 -bedroom, 2 -bath secondary dwelling unit with a separate septic system is <br />planned for the site. Per San Joaquin County Environmental Health requested guidelines <br />based on previous nitrate loading studies, an average daily flow of 100 gallons for the first <br />bedroom and 50 gallons for each additional bedroom per residence per day is estimated for <br />the site. The following table presents the nitrate contributing septic wastewater flow rates <br />anticipated for the site. <br />Table 3. <br />Typical Quantity of Effluent <br />* Based on EHD request with previous studies <br />TOTAL AVERAGE GALLONS PER DA750 gallons <br />Petralogix Engineering, Inc. <br />26675 Bruella Road, Galt, Ca 95632 <br />(209)-400-5729 <br />www.petralogix.com <br />Average <br />Category <br />Total <br />Bedrooms <br />Quantity <br />per <br />Bedroom <br />per Day <br />Days of <br />Use per <br />Year <br />Average Daily Flow <br />Per Facility <br />(gal) <br />(100 gallons per 1st bedroom per <br />Existing <br />Main House - 3 <br />1 <br />J <br />100 <br />365 <br />day x 1 bedroom x 365 days) / <br />365 days = 100 gal <br />(50 gallons per bedroom per day <br />Bedroom <br />2 <br />50 <br />365 <br />x 2 bedrooms x 365 days) / 365 <br />days = 100 gal <br />(100 gallons per 111 bedroom per <br />Existing <br />2nd Unit Dwelling -3 <br />Bedroom <br />1 <br />100 <br />365 <br />day x 1 bedroom x 365 days) / <br />365 days = 100 gal <br />2 <br />50 <br />365 <br />(50 gallons per bedroom per day <br />x 2 bedrooms x 365 days) / 365 <br />days =100 gal <br />(100 gallons per 1st bedroom per <br />Existing <br />3rd Unit Dwelling -2 <br />Bedroom <br />1 <br />1 <br />100 <br />50 <br />365 <br />365 <br />day x 1 bedroom x 365 days) / <br />365 days = 100 gal <br />(50 gallons per bedroom per day <br />x 2 bedrooms x 365 days) / 365 <br />days = 50 gal <br />(100 gallons per 1st bedroom per <br />Proposed <br />4th Unit Dwelling -3 <br />Bedroom <br />1 <br />100 <br />365 <br />day x 1 bedroom x 365 days) / <br />365 days =100 gal <br />(50 gallons per bedroom per day <br />L� <br />2 <br />50 <br />365 <br />x 3 bedrooms x 365 days) / 365 <br />days = 100 gal <br />* Based on EHD request with previous studies <br />TOTAL AVERAGE GALLONS PER DA750 gallons <br />Petralogix Engineering, Inc. <br />26675 Bruella Road, Galt, Ca 95632 <br />(209)-400-5729 <br />www.petralogix.com <br />