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CLARITweb Imrr <br /> e: 625180012 Onsite Wastewat�Treatment and Disposal Systen <br /> r + <br /> F. <br /> Y <br /> TABLE 7-9 ; <br /> D1Mir}iSINS FOR MOUND SYSTtM5a (Z5) <br /> z <br /> Item Dimension <br /> �-+ bound Height <br /> F <br /> (: Fill Depth (9), ft 1 (min)b <br /> Absorption Bad Depth (F), in. r 9 (min) <br />! Cap at Edge of Bed (G), ft 1c . <br /> Cap at Center of Bed (H), ft 1.5c <br /> Mpund Perimeter <br /> Downslope Setback (I) Depends on Soil Aermea4f'l i ter <br /> !lpslope Setback (J), ft10d <br /> �i Side Slope Setback (K), ft T 10d <br /> Side Slopes <br /> No Steeper Than 3:1 <br /> f � ' <br /> Y <br /> L <br /> a Letters refer to lettered dimensions in Figvrej7-13.' <br />' b On sloping sites, this depth will increase down slope to mein a <br /> � t fi,n a <br /> level bed. Ia.shallon� soils where grovndkrater coi�tamfnation is a <br /> concern; the fill. depth 'should be increased to t ft. <br /> c A 4-6 in. depot of quality topsoil is: included This depth can be' <br /> decreased by 6 in. i n areas with jai l d winters.— If depths less blah <br /> I ft are used., erosion after construction must-be, avoided so ; <br /> sufficient so.f1 covers the porous midia. , <br /> _ d Based on 3:1 side slopes. on sloping sites, (4) will be. less if <br /> 3:1 side slope is maintained. <br /> F <br /> 2-48 <br /> Fhttp://www.cpa.gov/cgi-bin/claritgw <br />