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• Hailey Manor Page 3 August 26, 2003 City of Lino Lakes, Minnesota General Street and General Utility Comments 1. The developer shall be responsible for any and all repairs to Arlo Lane that may be caused as a result of said development, including new concrete curb and gutter, aggregate and bituminous base, and bituminous surfacing as may be needed. 2. Lois Lane currently exists as an older bituminous street with no curb and gutter (bituminous curbing), and no existing City utilities. The extension of sanitary sewer and water from their existing termination points on Lois Lane at the east limit of the site is proposed. Sanitary sewer and water services should therefore be extended to each lot (Lots 7 -12, Block1 and Lots 1 and 2, Block 2) and shown accordingly on the plan. 3. The proposed watermain connection point on Lois Lane currently exists as a dead end main, and will be extended even further in length as a dead end. The existing system is expected to adequately provide sufficient flow rates and pressures for the units proposed as part of this development. However, any additional development (future) to the west and south of this proposed development must consider additional mains and looping of the system. • 4. As a result of the utility main construction, the developer shall restore Lois Lane by complete reconstruction with concrete curb and gutter and new bituminous surfacing (street section provided per City of Lino Lakes standards). Concrete curb and gutter shown shall be identified as D412. The geotechnical report provided by STS indicates that the existing soils are adequate to accommodate the proposed infrastructure (streets and utilities). However any soils considered deficient shall be removed and replaced with suitable compacted granular material as approved by the City Engineer. 5. There is a discrepancy on the developer's plans with regards to the extension of sanitary sewer on Lois Lane. The City's records indicate that the invert elevation of the existing sewer termination point (at the east end of development) is 899.86, very close to the elevation of 899.89 shown on the plan. However, the proposed elevation at the upstream end of the proposed sewer extension is shown as 892.12. It would appear that there is a 10 -foot error discrepancy, or the correct elevation shown should be 902.12. With the correct invert elevation provided, the sanitary sewer would appear to have less than 7 feet of cover, which is less than the minimum standard. This may also raise issues with regards to basement elevations (proposed and existing) that will need to connect to the new sewer. The developer must investigate this error further and address to the City's satisfaction accordingly. Additional Utility Comments It is expected that final utility construction plans shall be forwarded, and shall address the following: • 1. Sanitary sewer service pipe shall be SDR 26 or SCH 40 and ductile iron water pipe shall be CL 52. Gate Valves shall be Mueller A- 2370 -20 with mechanical joints, meeting AWWA Specifications C500 -61. Valve Boxes shall be Mueller H -10357 with H -10361 drop lid and extensions shall be Mueller H- 10363. All sanitary sewer and storm sewer manholes and appurtenances shall be furnished