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§ 8.30 <br /> <br /> aeration compartment. The trash trap shill have a net <br /> holH~ng 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 disaharge directly into the trap. The outlet <br /> from the trap to the aeration compartment shall be deep <br /> baffled or equipped w/th tee or long ell. <br /> c) 'I~e trash trap sh~]] be readily accessible for inspection <br /> and effective cleaning and shall be so constructed as to <br /> prevent unauthorized entry. <br /> d) The aeration compartment shall have a mi'nimum <br /> holcling capacity of 500 gallons or 120 gallons per <br /> bedroom, v~lmich ever is greater. <br /> e) The method of aeration shall be accomplished by <br /> mechanics/ aeration, diffused air, or both. The method <br /> used shall m~nf.B_~n aerobic cone]Jr{OhS at all times. <br /> f) The settling compartment shall have a minimum net <br /> holding capacity equal to'20% of the volume of the <br /> aeration compartment. The design shall provide for <br /> effective settling mud continuous return of set-fi]ed sludge <br /> to the aeration compartmenf~ <br /> g) A rn~n~rn~rn one year v;arranty and an initial two year <br /> service contract w]nJcln specified regular inspection calls <br /> and effluent quaJJty ahecks shall be provided as a part of <br /> the purct~ase agreement. <br /> h) ~ other features of the aerobic tanks not specifically <br /> mentioned above sh~]] comply with National Sanitation <br /> Foundation Standard No. 40 [iNovember, 1970). <br /> <br />Capacity. Dwellings The l~quJd capacity of a septic tank serving a <br />dwelling shall be based on the n~rnber of bedrooms contemplated <br />in the dwelling and shall be at least as large as the capacities <br />given below. <br /> <br />i~mher of~-:~lroorn~ Tsnk Liquid Capacities <br /> (Gallons) <br />3 or less 1,000 <br />4 , 1,250 <br /> <br />5 1,500 <br />For each addit~ona/bedroom, add 250 gallons. <br /> <br />Other Establishments. The liquid capacity of a septic tank <br />serving a~n establishment other than a dwelling shall be sufficient <br />to pro%dde a sewage detention period of not ]ess than 36 hours in <br />the tank for flows ]ess than 1,500 gallons per day, but in no <br />instance shall the liquid capacity be ]ess 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 />[ <br />[ <br /> <br />Faze 24-4 Printed 12/25/90 [ <br /> <br /> <br />