Laserfiche WebLink
4.0 TECHNICAL REVISION - ROBINSON LAKE PUMP STATION/PIPELINE <br />The Robinson Lake Pump Station is part of the process water reclaim system allowing for the recycling <br />and re-use of water from the tailings impoundments. Water will be pumped to the mill for use as <br />process water in the milling circuit. Recharge to Robinson Lake will be accomplished by transferring <br />water from Tenmile Pond and Mayflower Pond via the TMT. The replacement pump station will have <br />a design capacity of 10,000 gpm, where the existing system has a capacity of 15,000 gpm. <br />The design of the Robinson Lake reclaim water pump system is based on using the existing outlet pipe <br />from the Robinson Lake Reservoir. A replacement pump station will be built near the original pump <br />station site. The mill recycle water will be pumped from the new pump station through a 21,000 foot <br />buried pipeline to the Mill water storage tanks. Pipeline will consist of approximately 8,000 ft of 24- <br />inch standard weight carbon steel pipe is used in the first section of the discharge pipeline. When the <br />operating pressure along the pipeline drops below 200 psig, 30-inch HDPE pipe will be installed <br />discharging at the mill water storage tanks. The pipeline will be pressure tested and certified prior to <br />initiation of operations. <br />The Robinson Lake Pump Station building is designed as an all steel pre-fabricated building. No <br />potable water or sanitary sewer systems are designed to be included in the building. The proposed <br />general plan of the Robinson Lake Pump Station and Pipeline, and applicable details are illustrated on <br />the tigures below. <br />