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existing grade <br /> back fill lamin. <br /> I.)EoT -t1._-- - FA8Y--)c� <br /> 0 4"pipe dia. <br /> II T- � <br /> �I 15i'rock filter material <br /> SET- BACKS rake sidewalls & bottom to <br /> HOUSE System must be remove smearing <br /> {-4-18'-36'.I <br /> Tank (L. from property lines <br /> 'F-Ls\-L Is0-s.' T `)S ' from wells <br /> WA..y.--cr.-1< 1 from bldgs. TRENCH X- SECTION <br /> Iva (min. of two trenches) <br /> Treatment area �2 from property lines <br /> MA>JRRoL5 -mil x. nom'from wells (max. length 100 ) <br /> la."op a <br /> P 13xice Ftn 'from bldgs. <br /> - )0 'from trees SOIL BORING ELEVATIONS <br /> fromII `k_es&streams At least 4 I/2'of undisturbed earth <br /> min. I ' /°oe,o between trenches s <br /> 1i 4 dia. Pipe ' TH. I EL.-looc„1 --(1-a-"`-(o- 1007•{, <br /> / �---- - TH."l EL. -roog.i, <br /> Tank Tank <br /> trade °A slope TH. 3EL.-/oo9'1 <br /> Drop to Tank �uo'v L„-ate - ,__, .. <br /> 1� -,41.. -,LN )009.0 ') <br /> TH. 4 EL-tooS.to <br /> ' 30 - � <br /> Min. I to 8 TH. 5 EL.-)o0-2.‹ <br /> Max.I"to 4' DROP BOXES )'N' - s' °'F Y'`pt-y.- - io2,o.o <br /> 4't0 6"dia.pipe o Luc,'vs-c• Vi—oe,r__ /o)o. o <br /> SYSTEM DESIGN <br /> TYPE ry, S BEDROOM - Percolation rate PML min./inch (design 31 -HS min./inch) <br /> Treatment area required t/1`e of rock filter material --+-IG%-z c io sq.ft. of trench bottom area needed = 3 L" trench width -7-1.1a lin.ft.of trench needed , number of drop boxes <br /> (to be determined by the installer) <br /> Number of tanks required a , 1st tank].2.,_<0 gat, , 2nd tank/ocr>gal. minimums <br /> Cleon rock 13 cu.yds. ( 3/4" to 2 1/2”dia.,includes 2"above pipe ) PROPERTY OF To\--\S-\ �'i? <br /> 3 i. S W DO'V vw._t_... LTJ L V A <br /> 4 i-o)--(0 1✓1 r-A , A-1-'f4-k i-\ Gt7 . <br /> When constructingtrenches , this area should be shaped S-'_TEST/NG /t.v'C. <br /> Note: hNote: Distance from treatment area to neighboring wells— <br /> Designed By g- z— <br /> to divert run-off from entering treatment area. � '�� �� IDo _ <br /> Date:.1)_/. /96 , PH. 612-497-3566 <br />