03/11/2020 P&Z Packet - Laserfiche WebLink

Home Search

Ms. Katie Larsen 03/04/2020 Page 2 6. Drain tile must be 6-inch diameter per updated city standards. Sump pumps will not be allowed to connect to drain tile in the roadway. 7. Please provide clarification on how the Crane Drive corner cul-de-sac will drain. It appears that the west side will hold water by the radius at Station 2+75. Review if storm sewer is needed in this area to prevent the cul-de-sac from holding water. • Water Supply The proposed water system extension is consistent with preliminary plat. The development is being served by either 16- inch, 12- inch, or 8- inch diameter ductile iron pipe (DIP) water main and 1-inch Type K copper services extended to each lot. Comments: 1. Applicant shall extend trunk utilities to the extents of the approved Watermark plats to date. Please add the construction plans. 2. Please verify the size of insulation called out in Notes 7 & 8 on the Sanitary Sewer and Water Main sheets. The notes currently state that 8-ft x 8-ft x 4-ft insulation is needed. 3. The applicant shall loop the water main on Watermark Way and Crane Drive. I is recommended to install the sanitary sewer in this area concurrently with the water main installation. 4. Review service layout for Lot 21 Block 1 on Crane Drive to try to provide more separation between the services and the catch basin. 5. Review service layout for Lot 7 Block 1 on Crane Drive to try to provide more separation between the services and the manhole. 6. Applicant shall install two 45' bends instead of the proposed 90' bends for the hydrants at the ends of Bay Drive, Jasper Court, Island Court, and Heron Court. • Sanitary Sewer The proposed sanitary sewer is consistent with the preliminary plat. The development is being served by 8- inch diameter poly -vinyl chloride (PVC) pipe along with 4-inch diameter Schedule 40 PVC service pipe to each lot. Comments: 1. Applicant shall extend trunk utilities to the extents of the approved Watermark plats to date. Please add the construction plans. 2. Review all sanitary sewer depths and raise sanitary sewer to a minimum of 8-ft depth where possible. For example on Crane Dr, raise the sanitary line between MH 6 and MH 1 and include an outside drop and MH 1 instead of the proposed outside drop at MH 2. In the townhome area, it also appears that the sanitary sewer can be raised. 3. Please update the note placed over city standard plate SAN-7 on Sheet 28 about seeing the details on Sheet 43. No sheet 43 was provided with this submittal. • Transportation Watermark 3' Addition Engineering Review