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MOUND UESJUN WURKSttbt:t <br />(For Flows up to 1200 gpd) <br />A. FLOW Z SS- e- R -v- 10 . <br />Estimated L4SU gpd (seepages D-7 or 1-3,4,5) 540 <br />or measured - gpd x 1.5 = _ II `'111 '--"R`' <br />B. SEPTIC TANK LIQUID VOLUMES <br />.� -J o o CJ gallons (seepages C-3 or C-5) <br />C. SOILS (refer to site evaluation) <br />1. Depth to restricting layer = a,� Iso P I, inches <br />2. Depth of percolation testi Q. 1' inches <br />3. Percolation rate L4 . S' mpi <br />4. Land slope U % <br />D. ROCK LAYER DIMENSIONS <br />1. Multiply flow rate by 0.83 to obtain required area of rock <br />layer: Daily Flow x 0.83 - <br />L3gpid x 0.83 sq. ft./gpd - t sq. ft. <br />2. Select width of rock layer (10 feet or less) = 1 o ft. <br />3. Length of rock layer - Area + Width = <br />vig V sq. ft. + I 0 ft. = Lft. <br />E. ROCK VOLUME <br />1. Multiply rock area by rock depth to get cubic feet of rock; <br />uL5c'sq. ft. x L o,,'ft. = 4a ocu. ft. <br />2. Divide cu. ft. by 27 cu. ft./cu. yd. to get cubic yards; <br />4'] D cu. ft. + 27 = � cu. yd. <br />3. Multiply cubic yards by 1.4 to get weight of rock in tons; <br />m cu. yd. x 1.4 ton/cu. yd. _ :z-4 tons. <br />F. <br />1. <br />2. <br />3. <br />e,t maw %ew Fk" V CAW.611. M <br />(WO <br />Weeklies <br />Ty/e I <br />Tnia, 11 <br />I <br />Ti," 111 <br />..... <br />a0araow. <br />aloes <br />S&W <br />1.20 <br />V <br />01 to 3 • • <br />X0 <br />0 60 <br />110 <br />GIs is <br />-� - <br />-450 <br />- <br />211 <br />.a <br />060 <br />GM <br />373 <br />236 <br />030 <br />3 <br />730 <br />630 <br />2" <br />2 62 <br />6 <br />9W <br />323 <br />l22 <br />�� <br />r L <br />71030 <br />1 <br />1200 <br />600 <br />673 <br />370 <br />601 <br />to <br />.��. <br />Sepik tw Cy.ttk% ► rb-06 <br />11...1 <br />w� uped <br />I, -d ry..r .� <br />nob6 t <br />CAP -by <br />..w •.i•e1 <br />1.6 <br />po <br />IYo <br />�.• <br />isfill <br />1210 <br />xis <br />owe <br />Rock bed <br />., ,.:... <br />0 Lmglh <br />ADSORPTION WIDTH c.L-,I I -O%)" 1 <br />Percolauon rate in top 12 inches of soil is tt. ; mpi a�"'e'�"'Ih sa`1�r�rek <br />Select allowable soil loading rate from table on page E-; <br />.4 f gpd / f t2 <br />Calculate adsorption width ratio by dividing rock layer <br />loading rate of 1.20 gpd/fe by allowable soil loading rate; <br />1.20 gpd/ft2+ _ s gpd/ft' = �? • t<1) <br />Check this value on y4ge E-16. <br />Multiply adsorption width ratio by rock layer width to get <br />required adsorption width; <br />x '.) ft= ft <br />ro"i li= <br />in M~n <br />I1Rtt (M/1) <br />foo Tiru.n <br />Gllcnt <br />pa dt7 /t1 <br />m w e ka <br />S6ty of <br />Abiewpoica wl&k <br />a Rat Lice <br />Mr1A1 <br />Frier *we 0 1 • <br />Comm Ss1/ <br />..... <br />aloes <br />S&W <br />1.20 <br />100 <br />01 to 3 • • <br />Fila Saw •• <br />0 60 <br />2110 <br />GIs is <br />sMd7 lnw <br />0.79 <br />1 12 <br />1610 30 <br />LAID <br />060 <br />21 D <br />314063 <br />3111 Lao. <br />030 <br />240 <br />66.60 <br />lae. <br />011 <br />2 62 <br />60 b 120 <br />Clry <br />0.263 <br />3 W <br />SIOM 111M <br />CIs7 <br />--- <br />--- <br />ITO' <br />