N River Pumphouse

Untreated water from the Columbia River was supplied as coolant to the dump condensers, as well as to the reactor coolant pump drive turbine surface condensers and the local turbine generator condenser. This condenser cooling water was then returned to the river. Untreated water was also supplied to the water treatment facility for the filtered water, sanitary water, and demineralized water systems (see Figure 3-16). The entire untreated water system was supplied by four pumps each with a capacity of 400,000 L/mln (105,000 gal/min). Water was supplied from the 181-N river pumphouse to points of process use through two separate headers (WHC 1989a). 

The 181-N river pumphouse grouping consists of two potential sources that are grouped based on their location at or near the 181-N river pumphouse. The grouping is located between the railroad tracks and the Columbia River and includes the following potential sources. 

Aboveground Waste Oil Tank. An aboveground steel waste oil tank is located at the base of the bluff near the 181-N river pumphouse. The capacity of the tank is 980 L (260 gal). The tank was designed to store waste oil from drip pans used to catch oil from the river pumps, but was never used (DOE-RL 1990). 

The 182-N high lift pumphouse grouping consists of four potential sources within the area surrounding the 182-N high lift pumphouse. The grouping includes the water supply tank farm and extends to the Columbia River. The following potential sources are located In this area ... 

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