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Septic <br />Testing, McCleary Prolsr:y <br />May <br />50 1981 <br />page <br />Z <br />6. <br />Inherent in the design proposed are individual separate <br />septic tanks and holdirt-I tattke for each resit:once. <br />-' <br />These should be located )n :he individual lots so that <br />the only pipes; crossin3 lot lines are the three <br />pressure distribution manifolds from the residences. <br />7. <br />The proposed design meets criteria for a mound system <br />within the sheet flow fJoodllain area. <br />S. <br />Further items needing to be addresses include: <br />" <br />a) Can the proposed layrnit to constructed within the <br />applicant's proposed lot line mrranger.ent and still <br />allow for a driveway on the common lot? A sc-aled <br />site'plan should be subnittod fur review, showing <br />all proposed improv &-!nt s. <br />b) What are the provi3O ons fur an altei-rtate drainfield <br />site? If nude er.itt s, ; would recor-traend that if <br />failure occurs, tht- hollinq tank system for all <br />waste would he requ i ra 1. <br />a) Subheadinq M) of !iy memo of 1-21-81, still needs <br />to be addressed. (.frwnership and responsibijity <br />for meintenan(:e aril repair) <br />For the record, the re•hni:al justificatie.n for alluwinq <br />a graywater m.und/ho<<i,n(j tanM system on this site is <br />a) adequate area exists for a mound sy.,temf b) adequate <br />percolation iat:es oory den'onef.rat'ed where the water table <br />l.ermf tteeii c) the Mrul;osed syrttent is designed to cmnpensate <br />for the high water table. (Note that, normally, no system <br />would have been all(.wed it this area, anal holling t.anku <br />as well as the tround syst.ea ar�s a variance to the .)n-trite <br />ordinance) d) the holding teink/graywater r-onbin.rtic.,st will <br />reduce the on -site treattt.t:nt required for: <br />8OD - by approxiinat.ely Sol <br />N - by apptoxisnately 60% <br />P - by aphroxi.nately 50% <br />Total water use by aljpr(,xitnat�:ly 4ut <br />(leased on Manual of gray Water Treatment Pra4tice <br />T ,le 6 p. 77) <br />Hence the system wi 11 ctut haves as great are ttilpac-t c#n the <br />soil/water system of t 1.t! ore j an a tuta) racitjal l dyst.N►a <br />would, ,nd Should tJA Crtl.rte any 1.11AL1e E.c.11�ttion or health <br />prublemn for the, ;area. <br />