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1990-08-21 Septic System Design Report
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1990-08-21 Septic System Design Report
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Last modified
5/8/2025 12:28:33 PM
Creation date
5/8/2025 12:18:30 PM
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Template:
x Address Old
House Number
4750
Street Name
Creekwood
Street Type
Trail
Address
4750 Creekwood Trail
PIN
3011823330003
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G. DOWNSLOPE DIKE WIDTH <br />. If landslope is 3% or more, subtract rock layer width from <br />adsorption width to obta^ minimum downslope dike toe <br />____ft-____ft«______ft <br />L Calculate mound height at edge of rock layer on downslope <br />side; <br />a. Determine depth of dean sand fill at upslope edge of rode <br />layer. SqforatUm feet <br />b. Multiply rode layer width by landslope to eietermine drop <br />in elevation; Slope Diffnenee <br />/Q X ^ %-»100« -s ftMg.,C^^o <br />c Add depth of dean sand depth of dean sand for <br />separation at downslope edge to depth of rode layer to <br />depth of soil backfill to get motmd height at downslope <br />edgeoftoek^tayeR •- a.o’ <br />aL .o ft* 1.0 ft* ft» ft« M ft Me. <br />d. Enter table on page E-18 ^th lancislope ^(x^^lope <br />dike ratio. Sel^ dike multiplier of 5.o s^’o^. <br />e. Multiply dike multiplier by downslope mound height <br />to get downslope dike width: H x ^ ■ ae ft Mg.. m L <br />g. Compare the values of step G.1 and Step G2J. Select the <br />greater of die two values as the downslope dike width; <br />feetH^, lu's^ <br />h. Calculate upslope dike width using upslope mound <br />height and upslope dike multiplier from page E-18; <br />x s.-!r,m ,0 ftMuJ <br />i. Total mound width is the sum of upslope dike width plus <br />rock layer width plus downslope dike width; <br />10 ft-t /O ft+ JiO ft« MO ft <br />3. If landslope is 2.9 percent or less, basal width includes both the <br />upslope and downslope dike widths. <br />a. Calculate downslope dike width using steps G.2.a. <br />througjh G.2i; / L feet <br />b. Calculate upslope dike width using upslope mound <br />height and dike multiplier from Page E-18; <br />ft«,!_3_ft <br />c Add downslope dike width to upslope dike width to rock <br />layer width <br />13 ft^- /o_ft» yu ft« 3^ ft <br />E-18 <br />M M <br />uowngiopa <br />M 4A 7a M 40 <br />upolopo <br />M 40 70 •0 <br />0 M M M 10 70 M 40 10 40 70 10 <br />1 im M7 Ml Mi 7A 201 lA 471 SA 434 731 <br />1 SJf Ml Ml lA IJ4 201 170 434 SA M4 IJO <br />I MO M4 Ml 7A Ml 275 ~Ml MS SA 17f 4A <br />4 l.tt iJ$Mi 7A %n 234 lA M7 401 lA 401 <br />1 . Ml .. MO .liV M7 1077 Ml lA 400 4A Mf S71 <br />"4 %M Ml ■ ■ 7.14 Mi 1207 234 Ml lA 431 4.0 141 <br />7 MO Ml 7m 1034 1171 23i 1.U 170 4A 470 Ml <br />•S.H Mi Ml 1134 iin 232 lA %5f 4A 431 4A <br />f Ml Mi fill not ii.fl 231 2M UA lA 4A 4A <br />10 iJ9 4£T 100 IMO 2133 231 2A lA 175 432 444 <br />11 4M 7J«1U1 174S 3041 2JI 271 lA 141 l.»4A <br />11 4A4 im 114}4171 171 270 1.12 14t )A 4A 1
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