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Resolution No. /o �9 <br /> Pa ge 59 � <br /> � . <br /> "The site is suitable for a holding tank system. In <br /> either zones A or B, we would require a sealed system <br /> with check valves to prevent backflow or surface discharge <br /> of sewage if and when tariks were flooded. Anti-flotation <br /> stability of tanks would be of prime concern in either a <br /> holding �ank or mound situation. " <br /> cl Recomrrendations : <br /> "1. Marina Property - A holding tank svstem should be <br /> required for any new buildings . Orono Code would not <br /> allow a septic system, and due to flooding potential � <br /> and depth to ground water, a soil treatment system would . <br /> . have a high risk of ground or surface water contamination. <br /> ` 2. East Lake Street Properties - Although there is no <br /> � easy procedure to show that these systems are in fact <br /> � causing pollution of ground or surface water, the potential <br /> for pollution is very g�eat. I would suggest that these <br /> systems be abandoned and tanks be installed or modified to <br /> • � be used as holding tanks until such time that a collector <br /> sewer sys�em is extended to the area . <br /> 3. Tonka Avenue-�restview Avenue - Although many of the <br /> houses on these streets may have systems which are disposing <br /> of the effluent they receive, they may not be treating it. <br /> Possible courses of action would b e: � <br /> � a) ,�ontinue with present program of requiring visibly <br /> failing systems to be repaired with alternative systems <br /> - if necessary.� Lontinuously monitor ground water quality.� <br /> b� Install a collector system for off-site treatment <br /> and disposal. <br /> �� <br /> c) Require all systems to bes�replaced with alternative <br /> systems if documentation is shown that standard systems <br /> cannot be expected. to function adequately in existing <br /> soil types. " <br /> � . � . <br />