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^2308 - Lake Minnetonka Woods <br />July 22, 1999 <br />Page 2 <br />Water Main Looping <br />Resolution 4240, Condition 3 on Page 5, requires tliat sanitary sewer and water main designs <br />shall be provided for review by the City Engineer. The Subdivider's Agreement contains <br />similar language. Neither document contains specific system requirements; however, the <br />City Engineer has recommended that the water lines be 'looped' rather than dead-ended, to <br />provide additional capacity for fire protection plus improved water quality. Without the <br />looping, flows for firefighting may be limited, and water quality will be poor at the end of <br />the line. <br />The looping recommendation was brought up by the City Engineer as early as October 1997, <br />at which time it was suggested that the loop be a connection down to the 10" water main <br />along the south side of County Road 15. There were subsequent discussions regarding the <br />option of a fire suppression sprinkler system in each dwelling unit, as an alternative to <br />looping the system. The Council was reluctant to require the sprinkler system, and there was <br />no final decision made regarding the looping in the preliminary plat resolution. The City <br />Engineer is strongly recommending the water system be looped. <br />Looping to the east rather than to the south was more recently explored by the developer as <br />a cost-saving measure. This would require acquisition of an additional width of easement <br />between Lots 4 &5, Block Navarro (the twinhomes). ‘"♦affhad initially indicated to the <br />developer that the City v aid assist in acquisition of i •'* casement; however, further <br />discussion among staff concluded that City involvement in t. =;asement acquisition should <br />occur only witii Council approval. <br />Staff believes there are substantial benefits to looping the water system, including additional <br />water capacity for firefighting and better water quality, particularly to the townhouse units <br />at the end of the water line. Although the developer is generally responsible for acquiring <br />all necessary casements, the property owner may be reluctant to provide an easement, 'fhe <br />options in this case are as follows: <br />A. City assist in the acquisition of the easement (with all costs being borne by <br />the developer). <br />B. Require looping down ♦o the water main on the south side of County Road <br />15. <br />C. Do not require the water system to be looped. <br />Staff recommends Option A.