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<br />MOUND DESICN WORKSHFFJ
<br />(h11 l·l,m", ''l' t,, P!l!l g11d)
<br />Est1111;1ll'd 7-SQ_ gpd
<br /><lr nwasured X I .S" gpd
<br />SFPTI(. TANK LIQUID \/01.UMFS
<br />;2 e. J~eo_ gallons
<br />Sl )J LS (refer to site evaluatwn)
<br />l Depth to restricting layer :.:: _22.tf ___ inches _7-8 feet
<br />2 Depth of percolation tests = l <-inches
<br />Texture {o~M Percolation rate .. 2(2:::2-7...,. mp1 3
<br />4 Land slope 6 o;;)
<br />-·
<br />D ROCK LA YER DIMENSIONS
<br />1.
<br />2.
<br />3
<br />E. ROCK VOLUME
<br />Nurnho of
<br />fkdn•1m,
<br />.' .,. k~1
<br />I ••I~ ...... ,,
<br />i J,( ,u V
<br />! I _,11marrd ~-i<wa~r I-lows. in <fRll01" fK"t ,b,
<br />I (ul{f)
<br />I ......... ~-
<br />: Numha I Type I Type n Type Ill 1\1,· ,~~l IV
<br />--I ' 100 ill 180 I ·, -i•;o . 100 2 IR w,i .
<br />i .1 6(X) 17~ 256 of lh:-
<br />, \ 750 4'1() ]1/4 value:~
<br />,, 900 \2\ I :nJ ' "'
<br />; · 1050 I 600 17{) I
<br />111-.:1
<br />I 1101 i; ,2rx1 I (>7\ I 4llH Ill
<br />I I I c o.!unU1~ -S<Ptic Tank ranaciticf <m ,::a.U.orut
<br />l.J~wdt:..J(U,(H'\
<br />¼rumurnuqUld l.ltf,.udc:ar,:,iotyW'llh "'"'h du~ouu • .:
<br />C~aaty 1:&fba.E:c daspouJ hh 1ru:1de
<br />,~o II~ I'.,{)()
<br />1()00 I~ :ooo
<br />1~00 :?2~0 \00(1
<br />2000 )000 ·•O.X\
<br />0.83 =
<br />1. Multiply rock area by rock depth to get cubic feet of rock; &'3:'.:>sq. ft x J__
<br />ft. =~cu. ft.
<br />2.
<br />3.
<br />Divide cu. ft. by 27 cu. ft./ cu. yd. to get cubic yards;
<br />6~ cu. ft. -;-27 = _ll__ cu. yd.
<br />Multiply cubic yards by 1.4 to get weight of rock in tons; __ cu. yd. x 1.4
<br />ton/ cu. yd.= ..,33 tons.
<br />F. ABSORPTION WIDTH
<br />1. Percolation rate in top 12 inches of soil is ~Lmpi
<br />Absorption Width Sizing Table
<br />Texture fo 8 r"'\,
<br />Pcn:ot.moo P.;uc m
<br />~1inutcs pct loch
<br />(MPJ)
<br />F:i,;.t..:-r fhan O I
<br />Select allowable soil loading rate from table;
<br />e> ,b gpd/ft2
<br />VI 10".',
<br />{J! 1,,:,
<br />010 15
<br />I() to 30
<br />31 (0 4.5
<br />4610 (,(,
<br />60 to 120 Cakulate adsorption v-,1 idth r.11](1 h diYiding rock l;iver :~lo'W-(::t 1hv1 l )0
<br />l,1a,hng rate of 120 gpd/fl2 by all,.,-.'\1 ,1hle soil loading rak.
<br />1.20 gpd If( b_,6 gpd /ft1 "~ .:_ ___ :l,..._C>
<br />\lldtq,h· .id:,1)1~1\]()J\ \',1<l\h l,i\J,1 \-.\·I<!\!
<br />1,.·,pi1r,'d ddsorpt1on v,•Hlti1.
<br />__ 2_.o :-. 10
<br />i."•,_-, 1v1d1i, t,1 1'1•1
<br />,.
<br />JI
<br />G2lloa,
<br />S0tl Tatllf'C pc,-<U)' po-
<br />sq= fo0t
<br />Co:,rsc Suid 1.10
<br />S>nd 1.10
<br />Fine S:ind 060
<br />S>ndyLoam 0.79
<br />Loam -Wo--SihLoam
<br />CbyLoam 0.45
<br />Cby 0.24
<br />Cby 0 20
<br />I I
<br />R.uio of Ab.s,xp-.J.L'-"1
<br />width to Rod:
<br />Layer \\'idL~
<br />I 00
<br />I f(l
<br />2 0:1
<br />U2
<br />..LQQ_
<br />) 4()
<br />) (1/
<br />~ (KJ
<br />r, (f:
<br />(
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