2005-063 Council Resolution - Laserfiche WebLink

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Apollo Landing /Equinox Page 3 April 8, 2005 City of Lino Lakes, Minnesota • Utilities 1.. An internal sanitary sewer main is intended to serve the properties and connect to an existing 6 -inch service at Apollo Drive. The existing 6 -inch PVC connects to an existing 21 -inch trunk main running down Apollo Drive. The existing manhole and service at the property line should be field inspected to verify that the size, condition, and connecting elevations of the existing facilities are adequate. The sewer main for the site itself must be at least 8 -inch diameter in accordance with City standards. A connection or downsizing from 8- inches to 6- inches is typically discouraged. However, if the applicant provides flow calculations and an adequate construction transition detail that assures flow sufficiency and avoidance of future maintenance issues, such a connection can be allowed. The most recent utility plan received proposes to connect a water main to the existing 12 -inch diameter main on Apollo Drive. No size for the main into the Apollo Landing property is shown, and it must be a minimum of 8 -inch diameter. Provisions must be included in the plans for wet tapping to the 12 -inch main and for the connection near the center of Apollo Drive. A permit from the County and establishment of traffic and safety control measures during construction, and repair of the street will be required in accordance with County standards. As an alternative, the March 22 letter from Mattke Engineering suggests connecting to an existing 6- inch hydrant line rather than to the larger 12 -inch main in the street. Because of the property's mixture of higher use development, and per standard City and industry practice, it is recommended that an 8 -inch pipe directly connected to the existing 12 -inch main remain as proposed. As previously mentioned, a revised (final) utility plan must also be submitted. 3. Individual sewer and water services are not shown on the plan. All trenches (including services) shall be backfilled and compacted and meet 100% maximum Standard Proctor Density in the upper 3 -feet from finished road elevation, and 95% maximum Standard Proctor Density below the upper 3 -feet. A minimum of two feet of cover over storm sewer pipe is desired. 4. Provisions for a future extension of utility services to the property located immediately adjacent and to the west of the Apollo Landing property have been suggested. It is therefore recommended that water and sewer stubs be extended from the newly installed 8 -inch sanitary sewer and water mains. The stubs would essentially extend to the NE corner of the neighboring property from near the center of the Apollo Landing property. A utility easement at this location should also be established. 2, Other 1. Long term maintenance responsibilities for the development area, including the detention areas must be addressed appropriately in an agreement between the Developer and the City. 2. Apollo Drive and Lilac Drive are under the jurisdiction of Anoka County. The plat and site plans will therefore require the review and approval of Anoka County, both for the plat itself and with regards to driveway and site access. It is likely that the County will have comments with regards to right of way dedication and access from Apollo Drive. At a minimum, right of way dedication will