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Ms. Katie Larsen <br />June, 2, 2016 <br />Page 3 <br /> <br /> <br /> S:\Community Development\Projects\Planning Cases\St. Clair Estates\Staff Reports\20160608 PZ (PP-Variance)\4 20160602 Engineering Review Lino Lakes-St <br /> <br />2. Extend the proposed watermain to the south and connect to the existing watermain at <br />Birch Street to loop the system. <br /> <br />3. The watermain around the looped road shall be 8 inches in diameter. <br /> <br />4. Show gate valve locations on the plans. Gate valves are required on all hydrant leads. <br /> <br />5. Water services shall be shown on the plans. <br /> <br />6. The City’s Deputy Director of Fire should review the hydrant locations. It is <br />recommended to add or adjust hydrant locations to provide fire protection to Lots 8 and 9 <br />Block 1. <br /> <br />7. Modify Watermain Note 2 on the cover page to read that a two foot minimum vertical <br />separation is required where the watermain or water services cross the sewer. Refer to <br />Standard Detail Plate WAT-3. <br /> <br />8. Include note that watermain including valves, fittings, hydrants, and appurtenances is to <br />be wrapped in polyethylene film. <br /> <br />9. Include note that fittings shall be ductile iron Class 350 compact fusion-bonded epoxy <br />coated. <br /> <br />SANITARY SEWER SYSTEM <br /> <br />1. The sanitary sewer is less than 7 feet deep at SAN MH 8 and the City’s standard is 7.5 <br />feet deep. The proposed 7 feet depth will be verified with the City’s Utility Supervisor. <br />The sanitary sewer is 7 to 8 feet deep within the entire northern loop. This condition will <br />cause several conflicts with the water main and with sanitary and water services in the <br />area. Once additional information is provided we will review for conformance. <br /> <br />2. Sanitary sewer services need to be shown on the plans. The plans need to specify the <br />installation of tracer wire for sanitary services. Sanitary sewer services for Lots 3-7 <br />Block 1 are of concern due to excessive length. These may require cleanouts or <br />extending the main further into the loop providing more standard lengths. <br /> <br />3. Sanitary sewer pipe deeper than 15 feet shall be SDR 26 and labeled on the plans. <br /> <br />STORM SEWER SYSTEM <br /> <br />1. Provide storm sewer calculations and drainage area maps with your construction plan <br />submittal to verify the size of pipes and spacing of catch basins. <br /> <br />2. Several storm sewer pipe lengths do not currently meet the minimum 3 fps requirement. <br />(CBMH 301-FES 300; FES 108-CBMH 107; FES 104-CBMH 103; CB 113-CBMH 112;