Laserfiche WebLink
• • Trov.JohnsonC?co.Wriqht.mn.us <br /> Mou nd Des�gn for questions or comments <br /> Property Owner: Date: 6/1/2010 <br /> Site Address: 700 6th Ave N, Orono, MN 55391 PID: 2.51182E+12 <br /> Comments: <br /> instruc4ons: � =req'd input � =input or default � =calcutated field *"* =installer info <br /> i� �5 bedroom Type � Residentitl System <br /> 2> 750 GPD design flow <br /> 3> No Garbage disposal or pumped to septic <br /> a> *•• 3f�U Gallon septic tank(minimum) Mu["tiple tanlis or compar�ine�t req'cl <br /> s� 1.2 GPD/ft�mound sand loading rate <br /> 6� 10' ft rockbed width 62.5 ft rockbed length <br /> �> •*• 3.0 ft lateral spacing , 3.Q ;ft perforation spacing (default 3, �ange 2-3, for both) <br /> m►d:z�ke� �manifold connection <br /> a> «•*�6 laterals 30.3 feet long 10 perfs/ laterat �perfs total <br /> 9> *•' 7/3� ::inch perfs at �feet residual head gives 0.56 gpm flow rate per perforation <br /> (3/16"default) (2'head defautt) <br /> for this perf size fx spadng, & pipe size on line 12, max perfs/lateral= 30 , line#8 must be less --> OK <br /> io> �doses per day (5 recommended, 4 minimum) (4 will allow 2"laterals, 5 will altow 1.5") <br /> i i� 150 gallons per dose (treatment voiume) <br /> �2� 1.50 inch diameter laterals(or smaller)witl meet"5x pipe volume" <br /> ••• 2.00 inch diameter laterats (or smaller) must be used to meet"4x pipe volume"requirement <br /> 2.00 inch diar�ter taterats (or smaller)will meet"3x pipe votume" <br /> i3> "** 75 feet of 2:0. inch supply line teads to 13 gallons of drainback votume <br /> ("top feed"manifotd to control the drainback) <br /> �a> 163 gallons TOTAL pump out votume (treatment+drainback) <br /> is> f0 feet vertical lift from pump to dispersal area, leads to a: <br /> is� "•• 34 GPM C 18 feet of head, Pump requirement note: >50gpm may require an extra 3-6'of head <br /> i�) •'" 1500 gal Dose tank(minimum) at approximately 31�:�0'gpi <br /> leads to a <br /> is> •*• 5.3 inch swing on Demand float, or timed dosing of 4.8 min ON (confirm pump rate with drawdown <br /> 4.7 hrs OFF test and adjust as necessary) <br /> i9> ' 12` inches of effluent from bottom of tank to cover pump <br /> 20> •�• 17 inches from bott,om of tank to"pump ON"float <br /> Zi> *** 20 inches from bottom of tank to"Hi Level Alarm"float (Add a few more inches if Time Dosed) <br /> 2z> 871 galtons reserve capacity (after High Level Alarm is activated) <br />