08/13/2003 P&Z Packet - Laserfiche WebLink

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• • Panatonni Development Page 4 August 7, 2003 City of Lino Lakes, Minnesota 5. Storm sewer computations have not been submitted. 6. An average of SCS Type A and Type B soils should be used to determine curve numbers for the proposed conditions. 7. The existing condition curve numbers and times of concentration utilized are acceptable. 8. As previously stated, approval of the Rice Creek Watershed District should be attained prior to the City granting final approval. Utility Plan 1. The plan proposes to extend sanitary sewer and water across the site from Lake Drive to existing facilities at the west boundary of the site. However, the connection and termination points for these mains are not identified clearly. In particular, the location of the watermain and sanitary sewer termination point connections on Lake Drive are not identified. Because records do not indicate any existing sewer or water on Lake Drive at this time, it is assumed that the utilities will be stubbed to a location that should be identified specifically on the plan, and field adjusted as required. It is also believed that the intent is to connect the watermain to an existing stub (10 -inch or 12 -inch) line near the west boundary of the property. The size of the connecting stub must be identified and field verified as necessary, and may require replacement to a 12 -inch size. A valve must also be installed at the point of connection. The sanitary sewer proposes connecting to an existing manhole along the west side of the property, that appears to connect directly to an existing 12 -inch trunk main. This should also be field verified. 2. The sizes proposed for the sanitary sewer and water mains are currently being reviewed in accordance with the City's overall comprehensive plan and potential development beyond the Panatonni site itself. 3. All sanitary sewer service pipe shall be SDR 26 or Schedule 40. 4. All sanitary sewer main pipe is identified as 8 -inch diameter size with a slope of 0.22 %. The minimum grade for an 8 -inch pipe is 0.40% per State of Minnesota standards. The sanitary sewer design therefore needs to be revised accordingly. 5. All watermain and sewer appurtenances shall be furnished and installed in accordance with the standards of the City of Lino Lakes. Gate valves shall be Mueller A- 2370 -20 with mechanical joints, meeting AWWA Specifications C500 -61. 6. Lake Drive must be completely restored to the full satisfaction of Anoka County and the City of Lino Lakes. Traffic control during construction must be provided in accordance with the State of Minnesota Manual of Uniform Traffic Control Devices (MUTCD), and the requirements of Anoka County.