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Attachment B <br />gpw vm%- <br />NU:' <br />KIDEWATERING, INC. <br />March 9, 2023 <br />TO: Jeff Frid JFrid(a)_CityofArdenHills.org <br />Public Works Superintendent <br />City of Arden Hills <br />Project: Lift Station #7 <br />(Bypass Pumping) <br />Arden Hills, Minnesota <br />Project Description <br />Northern Dewatering (NDI) is pleased to offer the following quote for the above <br />referenced project. This project will consist of replacing the submersible pumps and <br />bases at existing Lift Station #7. NDI understands that Electric Pump will replace the <br />pumps. <br />The influent sanitary sewer flow will need to be bypass pumped around Lift Station #7 <br />when this work occurs. It should be noted that influent flow comes from two different <br />directions. <br />NDI understands that the temporary sanitary bypass pumping system will need to be in <br />operation for about a week. <br />Service to be Provided by NDI <br />NDI will furnish and install and later remove pumps at two different manholes upstream <br />of the existing lift station. One manhole is located within 20-feet of the station and the <br />other manhole is located about 150-feet east of the lift station on private property. <br />A total of two pumps (1-primary pump and 1-backup pump) will be installed at each <br />upstream manhole. The discharge piping from the manhole located on private property <br />will be routed overland and will discharge into the manhole located west of the lift <br />station. <br />The pumps installed west of the lift station will handle/pump all flow. The fused HDPE <br />discharge piping will be routed overland, along the existing bituminous path, to the <br />south about 1,200 LF, and discharge into the existing forcemain discharge manhole. It <br />should be noted that this discharge pipe will cross County Road "D". <br />14445 NorOdale Blvd-- Rpgerq. MN 55374 <br />=a' ' (7$3) 428-2616*FAN (7M 420-2671 •www-noflherndew�tering.com <br />