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a _ <br /> III. PROPOSED <br /> SEPTIC SYSTEM LOADING AND DESIGN <br /> The total wastewater effluent flows for the Open Air Mall have been n readjusted from the original <br /> calculation of 30,000 gallons per operating day. Due to a decrease in the number of vendor <br /> spaces from 852 down to 645, the anticipated decrease in wastewater flow is now estimated to be <br /> 19,500 gallons per day for each of the three operating days of the week (Fri., Sat., Sun.), or a <br /> total weekly volume of 58,500 gallons. <br /> The projected wastewater flow for the Bingo Parlor is based upon its anticipated daily operation <br /> of seven days per week from 6:00 A.M. to midnight. On Mon., Tue., Wed. and Thu., it is <br /> anticipated there will be 400 patrons during the referenced 18 hr time period. On Fri., Sat. and <br /> Sun. the number of patrons may be 550. Five gallons of wastewater will be assigned for each <br /> person, per day. This is based upon a patron's two visits to the toilet at 1.5 gallons per flush, with <br /> 0.5 gallons handwashing per visit, for a total of four gallons. A 20% incorporated safety factor <br /> brings the total to five gallons/person/day. <br /> From these figures, total weekly wastewater flows originating from the Bingo Parlor are <br /> calculated to be 16,250 gallons. Therefore, the total weekly wastewater flow for the entire Open <br /> Air Mall is 74,750 gallons or a daily average of 13,464 gallons. <br /> The Patrons of the Bingo Parlor will in all likelihood display a unique characteristic to the <br /> wastewater flows. Most patrons will visit the restrooms only during the denoted "break" periods. <br /> This will lead to an interesting scenario in which the septic tanks, the Distribution box, the <br /> leachfield and the seepage pits will be "dosed." Referencing the requirements of the Uniform <br /> Plumbing Code, a distribution box (D-box) supposedly splits the effluent flow equally among the <br /> leachlines. Several investigators have found this not to be the case. This is because the septic <br /> tank buffers the effluent flow so that it trickles into the D-box to exit ap referential leachline. <br /> f The scientific literature suggests that massive effluent flows are more equally distributed among <br /> L leachlines, which is what should occur when the patrons use the facilities during these break <br /> times. 1 <br /> . 4 <br /> Valfe ea" <br /> y�9� <br />