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Dfe i gn Requirements <br />November 19, 1992 <br />COnSsidiPIring the {s{:}Zls data and minimum design <br />requirements Of the Septic System ordinanc•_a, our proposal is <br />as follows: <br />Construct a Mound d Syst f m based 1--:01 a W it r:.!'r LASRge of 75() <br />gallons per clay, for 3 Bedroom Type I. <br />454 grid x .63 sq. f t . pgpd = 373 sq.. feet Eyed <br />area --minimum design size <br />Proposed De<.si.gn Sire 1.0 x 40 bed = 400 sq. ft bed area., <br />1'- :000 gal. t.arlk. <br />1- 1250 gal.. tank <br />1— 1000 gal. pump tan!•:: <br />Consst r uc: t i on f- r c,F,.-dur e For A S ewiige Tr e: at r!Ient MOL.tns:i <br />Soil Sur f ac f. Preparation <br />A_f_Fi.nc:h�discharge <br />..pir.-)�wfrom the pL.tmiz) try erlci of the mound <br />are --A shall be in=st-_llled j�rior to <.•aoilsurface pr�`F.1erati-:-Jl. <br />The trench r^xcavated to install the discharge pipe sahall. L)te <br />carefully back —filled and compacted to prevent sewage of <br />is=f fIuent. <br />The total area ssel.e..,teci for the mc,Und, incl.L.tdi.ng that <br />!_udder the dikes, shall be rr-)ughlened in order to thoroughly <br />bre::ak up any existing sod layers an .to provide a suit,aj } :: <br />transition zone between the original sr.:�X1 and the sand laver <br />c:-f the mound. The area shall be roughened only when the, f <br />rricii store content of 'thlk` ss.:.il S inches below til4: surface is <br />drier than thle:• plastik_: limit. The plastic: limit is the stoil. <br />moisture cc_intent below whli.c.h the soil May tie ManiPulated finr <br />purposes of installing a ssrii•l treatment system, and above <br />whif:.h Manipt..tlation will cause compaction and puddling. <br />Surface preparation or ssc:arifi.c-ati-nn will, be, performed with <br />a back -hoe bt..tcket. There shall be no dead furrow in the <br />riiound construction area„ <br />I~I.�L.tnd constrL.tctiOrV shlall proceed immediately aftexr sL.tr'far_.e <br />preparation is C-Ompleted. Every effort should be taken tc,.. <br />prevent rain frorn falling on the prepared soil. surface., <br />Consstructicin Materials & Distribution of Effluent <br />A� .le_cit1-4Jashle,Ld �� <br />,and lElvershallbe- pla-:.ed�where^tile filter <br />t:rock: tied? mate-rial is to be located., This sand layer must <br />be at least, 12-- inches; deep and should be deep enough to <br />level area for mv.)L.tnd. A crawler tractor with a blade �r <br />bt_tct-cet shall be: used to riie-we the *sand into, plane. At lcsa��'t <br />6 inches of sand shall be kept under the trac-ks t.:,) mini.rrtii.. •.'a <br />compaction Of the scarified layer. The sane.[ layer upon <br />