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G. DOWNSLOPE BERM WIDTH (Slope< I%) <br /> 1. Ase"on width is from fel: 27- ket <br /> 2. Calculate minimum mound size: <br /> a: Determk-ie depth o€-clearf- #t-a a--edge of rock layer. <br /> . f-rom Site Eveluatkm-step C1: - 18-0- aches-lean sand <br /> b. Add depth of clean sand for separation 2a at upslope edge plus depth of rock <br /> layer-(1f.) plus depth ofwveg4ft) to-fend hght at upslope edge of rk layer: <br /> .1-8.0 -in/ 1-2. = 1.50 --4eet-a-1#-+Vt = 3.50 # upslope height <br /> c. fly upslope mound- height br4fie=mid upslope berm width: <br /> 3.50 ft 3,-4= 44.& 4eet- -bean width -- <br /> d Multiply rock layer width-D2 b)r-ImdsI G5 to determine drop in elevation.- <br /> MOO:130 feet X -0-5 %sleW= 5.-M / 100 = 0.05 feet <br /> e:- Add-depth of clean--sand fbr-slape•difference G2d at downslope edge, to the <br /> mound height at the upslope edge of the rock layer G2b, to get downslope-height- <br /> 0:05 feet + 3.50 -equals 3:6 feet do rislope height <br /> f. Multrply downslope rriound-62eheight-by 4-tcr get downslope berm width: <br /> 3.6 ft X -4 = -14 . .feet�evmskpwberm width - - <br /> g: The4nound width is the sumo the berm width G2c plus rock layer <br /> width D2 plus downslope berm width G2L <br /> 11.00 feet + 40:0 feet + 14 equals- 38 €eefwide <br /> h, DoteFmine if additiorrak-adsoFptie ; vvkltf J&required: TRUE OR FALSE <br /> 1. IfG1•Jslarger G2g addittonat adsor n-area is r red:-= <br /> G1 __. 27 cp-G2g_- _38- <br /> -- I FALSE <br /> 2.. Subtract the minim d idlir-G2g-ft m-the adsorption width'G1 <br /> to find the additional downslope area for adsorption, IF REQUIRED: <br /> ft miffs equais, ft additional a rption.area <br /> 3: Add-4/2 the add' `wal a. 2h2- apslope berm width G2c and 1t2 to <br /> the downslope berm width G2f: <br /> Upsiope berm: .-ft ~Plus equals <br /> -Doves slope berg: ft -plus- mss, <br /> i. New around width is-the-an of-the upslope-berm G2c or G2h3, if additional area <br /> req`d, &downslope berm G2f or G2h3, if add.area req`d, plus rock layer width D2: <br /> 14:0 ft plias 14 - ft- -plus - 1-0.0 ft equals. 38 <br /> k: Mound length is the sum ef-the-upslope-berm G2c and upslope <br /> berm G2c plus rock layer length D3: - <br /> 14.0 ft plus 14.0 ft pkis 438 ft equals. 78 <br /> I. -F}NAiL MOUND DJME#&IG1#7S: - -38- ft wig X 78- ft long <br /> PAGE 5... . of..... 1.7. .. 2849 Watertown Road,Orono <br />