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Mound Design Trov.Johnson(�co.Wriaht.mn.us for auestions or comments Property Owner: Jeff Soderstrom Date: 5/3/2010 Site Address: 2055 Salem Court, Orono 55356 PID: Comments: instructions: � =req'd input � �input or default � =calculated field *** =ir�staller info I) �6�bedroom Type � Residential System 2) ��GPD design flow s� No Garbage disposal or pumped to septic a> "** '. 30b0 :.Gallon septic tank(minimum) Mt�ktl�e ta�ks or compartmept req'd s) 1.2 GPD/ft�mound sand loading rate 6) 1'0 `ft rockbed width 75.0 ft rockbed length �> **' , 3.0 ft taterat spacing 3:p ft petforation spacing (default 3, range 2-3, for both) ►t�id�t�#e� "manifold connectlon _ . ,__ _ . s) *"•�laterals 36.5 feet tong 12 perfs/lateral 72 perfs total 9) *•" . 7f32 inch perts at �feet residual head gives 0.56 gpm flow rate pe�perforation (3/16"default) (2'head defautt) for this perf size St spacing, &pipe size on tine 12, max perfs/tateral- 30 , line#8 must be less--> OK io� �doses per day (5 recommended, 4 minimum) (4 wilt allow 2"laterals, 5 witl allow 1.5") �i> 180 gallons per dose (treatment volume) i2> 1.50 inch diameter taberals(or smaller)will meet"5x pipe volume" *•* 2.00 inch diameter laterals(or smaller) must be used to meet"4x pipe volume"requirement 2.00 inch diameter laterals (or smaller)will meet"3x pipe volume" is> �'�*�feet of 2.4 ;inch supply line leads to 10 gallons of drainback volume ("top feed"manifold to control the drainback} ia> 190 gallons TOTAL pump out volume(treatment+drainback) is> 10 feet vertical lift from pump to dispersat area, leads W a: i6> *** 41 GPM @ 19 feet of head, Pump requirement note: >50gpm may require an extra 3-6'of head »> •"* 1500 gal Dose tank(minimum) at approximately 31.�;gpi leads to a is� ••• 6.1 inch swing on Demand float, or timed dosing of 4.6 min ON (confirm pump rate with drawdown 4.7 hrs OFF test and adjust as necessary) i9> 12: ;inches of effluent from bottom of tank to cover pump Zo� **" 18 inches from bottom of tank to"pump ON"float zi> '•" 21 inches from bottom of tank to"Hi Level Alarm"float (Add a few more inches if Time Dosed) 2) C7gatlons reserve capacity (after High Level Alarm is activated)