03/09/2005 P&Z Packet - Laserfiche WebLink

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Memo Vaughan Addition Engineering Review Page 3 March 3, 2005 b. List the following Watermain Items on the Plan Sheet: • Fire Hydrant: Waterous Pacer WB -67 • Gate Valve: Resilient Seat Gate Valve — Mueller A2370 -20 • Corporation Stop: Mueller H -15000 • Curb Stop: Mueller H -15154 Mark II Oraseal • Curb Box: Mueller H -1300 w/Mpls. Top 1.5 MPT c. Sanitary services to Lots 3 and 4 are shown as connecting directly into sanitary MH 1. This is not allowed, and the services shall be moved into the mainline with a wye connection system. d. List on the plans that storm and sanitary solid manhole casting assemblies (covers) shall be NEENAH R -1642 (or equivalent) with two concealed pick holes and sanitary sewer raised lettering. This includes the connection existing sanitary manhole cover must be replaced if necessary. e. Provide to the City Engineer an approved copy of the MDH (water) and MCES/MPCA (sanitary) permits. 5. STORM SEWER SYSTEM • a. What is the purpose of the culvert in Lot 5? Could the lot be graded so it would not be needed? b. Minimum storm sewer size is 15" RC pipe. 12" may be used for catch basin leads. c. CMP storm sewer is not allowed. d. CB 2 does not have enough cover from top of pipe to rim. e. What is the HWL of the wetland along the east property line? f. What is the HWL of the wetland on the southeast property line? g. Location and elevation of emergency overflow need to be shown for the rain gardens. h. Low openings must be one foot above the emergency overflows for rain gardens. i. Lowest floor elevation, including basements, must be four feet above the anticipated high groundwater level; four feet above the normal water level; or two feet above the HWL, whichever is greater. j. Existing Condition Curve Numbers and Time of Concentrations are acceptable. • k. For proposed conditions, HRCS Type "B" Soils shall be assumed for all disturbed areas where, under existing conditions, NRCS Type "A" Soils exist.