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§ $.30 <br /> <br />Pa~e 2.44 <br /> <br /> aeration compartment. The trash trap shall have a net <br /> holdin~ capacity of net less than 20% of the average daily <br /> flow. The invert level to the trap shall be above the liquid <br /> level and discharge directly into the trap. The outlet <br /> from the trap to the aeration compartment shall be deep <br /> baf~ed or equipped with tee or long ell. <br /> c) The trash trap shall be readily accessible for inspection <br /> and effective cleaning and shall be so constructed as to <br /> prevent ~mauthorized entry. --. <br /> d) The aeration compartment shall have a minimum <br /> holding capacity of 500 gallons or 120 gallons per <br /> bedroom, which ever is greater. <br /> e) The method of aeration shall be accomplished by <br /> mechanical aeration, diffused air, or both. The method <br /> used shall maintain aerobic conc~tions at ail times. <br /> f) The settling compartment shall have a minimum net <br /> holding capacfty equal to'20% of the volume of the <br /> aeration compartment. The design shall provide for <br /> effective settling mud continuous return of settled sludge <br /> to the aeration compartment. <br /> g) A ~nirn~rn one year warranty and an initial two year <br /> service contract which specified regular inspection calls <br /> ~nd efifluent quality checks shall be provided as a part of <br /> the purchase agreement. <br /> h) All other features of the aerobic tanks not specifically <br /> mentioned above shall comply with National Sanitation <br /> Foundation Standard No. 40 (November, 1970). <br />Capacity. Dwellings The liqttid capacity of a septic tank serving a <br />dwelling shall be based on the n~mber of bedrooms contemplated <br />in the dwelling and shall be at least as large as the capacities <br />given below. <br /> <br />Number of Bedroom.~ T~nk Liquid Capacities <br /> (Ga/Ions) <br />3 or less 1,000 <br />4 1,250 <br />5 1,500 <br />For each additional bedroom, <br /> <br />aaa 2 .p 'al!pns. ,.., <br /> <br />Other Establishments. The liqudd capacity of a septic tank <br />serving mn establishment other than a dwelling shall be sufScient <br />to pro~dde a sewage detention period of not less than 36 hours in <br />the tank for flows less than 1,500 gallons per day, but in no <br />instance shall the liquid capacity be less than 1,000 gallons. For <br />flows greater than 1,500 gallons per day, the minimum liquid <br />capacity shall equal 1,125 gallons plus 75% of the daily sewage <br /> <br />Printed 12/28/90 <br /> <br /> I <br /> I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br /> <br />