Community Assessment Report - Onsite Sewage Treatment ...

o All properties install compliant ISTS and explore private funding options for anyfuture upgrades.o Include all systems in a future management plan.• If the Community desires to own and manage all wastewater systems to ensureenvironmental stewardship, or if the Community desires to free up space on individuallots potentially occupied by ISTS, with consideration to cost of the overall systemapplying secondarily, then the following recommendation applies:o Further evaluate Alternatives 2 and 3, cluster treatment system options. Evaluatepotential to attain public financing to fund these options.o If Alternative 2 (Cluster LISTS serving six properties with eight properties onISTS) is desired, then:o Determine final properties for inclusion in cluster mound LISTS onexisting wastewater treatment site (can accommodate maximum flowof ~3,000 gallons per day (approximately six three-bedroom homes))o Remaining eight properties install ISTS on their own lotso If Alternative 3 (Cluster MSTS serving all properties) is desired, then:o Evaluate potential for purchasing additional lando Complete a hydrogeologic investigation to determine if nitrogenremoval technology will be required and if groundwater moundingwill affect design of a proposed MSTS.5.3 NEXT STEPSThe following describes future actions that could be taken by the Community of Rolling Shoresbased on the CAR recommendations.• Explore public financing grant options to reduce debt service for upgrades.• Explore possibility of land acquisition for cluster MSTS system (Alternative 3).• Further explore the suitability of the proposed cluster site(s) for wastewater treatment viaa Hydrogeological Assessment using soil pits, and (where applicable) borings togroundwater, and groundwater mounding assessments.T:\2797-01 Chisago County\CAR\ROLLINGS SHORES CAR 090712.docx5-2