N High Lift Pumphouse

Three underground diesel storage tanks were located on the north side of the 182-N high lift pumphouse. These tanks were identified as 182-N-l-OT, 182-N-2-DT, and 182-N-3-DT. All tanks were single-wall carbon steel and each had a capacity of 15,000 gal. They were approximately 16 to 20 years old and had no cathodic or interior protection. The three tanks were pumped dry and removed in December 1990. Soil sampling following tank removal shows the site clean of petroleum derivatives (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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