Laserfiche WebLink
. ���.�/i,si�- �i►�-.� <br /> �c'so �, /0>9 <br /> •February 2, 1979 . <br /> � Stubbs Bay rioratorium Area _ <br /> Review of On-Site Sewage Treatment . <br /> Page 3 � <br /> B, STUBES BAY I�iA <br /> RI.'�A PRO�ERTY - INCLUDING E.AST LAKE STREET HOUSES (CONT. ) <br /> 2) Flood Plain Reaulations - Drainfields <br /> a) Orono Flood Plain Ordinance (31. 831) prohibits septic systems <br /> and wells in or within 26�ncludes all�areas1beloa the1100syear <br /> conservation area , which i <br /> flood. Approximately half of the marina property is below _ <br /> the 100-year flood level, as are about half ofethrohibitedke <br /> - Street houses . In addition, septic syste�s ar p <br /> ` in all designated sheet flow areas of shallow flooding in <br /> which the rem3inder of the property is contained (Zone B) . <br /> b) p.CA WPC-40 recommended standards (not nandatory) prohibit <br /> drainfield installation in areas subj�ct to flooding or in <br /> flood plains delineated by local ordinances adoMinn.1Re <br /> • compliance with State Flood Plain Regulations ( g• <br /> NR 85-93) or where regional flood plain information is <br /> � available, except that wheses��semayfbe�allowed,11mits are <br /> _ known certain alternative y <br /> c) F1ood� Insurance Rate Maps - The 10-year flood elevation <br /> averages 0. 2 feet lower than the 100-year flood between <br /> Crestview and the Lake. (Flood Insurance Study) . <br /> 3) Suitability for System �pes � _ <br /> � a) Standa'rd System - Not Suitable - due to e1fl oding,table and <br /> possibl <br /> b) Mound System - Possibly Suitable on certain parts of the <br /> site where seasonal water table is at least <br /> t-,ao feet below the surface.'` Could be a � <br /> source of groundwater contamination during <br /> � flood periods. The site is marginal for a <br /> • �. mound system and determination ouddeenh to <br /> ' �seasonal water table becomes a j gm <br /> • decision. - <br />