Project Description

This project includes investigation and characterization of a pipeline that provided heating oil to the BIA school and hospital from a tank farm in the 1950s. The pipeline was abandoned in place and the old school and hospital have been removed. It is estimated that more than 200,000 gallons of heating oil was released over a period of 30 years. This area is currently occupied by housing and the elementary and high schools, so the characterization of any released product is particularly important to the community. The area is underlain with permafrost with only a shallow zone that seasonally thaws. Using direct push technology, we were able to place over 50 soil investigation points around the site, install ten (10) monitoring wells without causing damage to other underground utilities, and work around existing structures. After evaluating the data, we collected on subsurface geology and soil and groundwater analytical results we will produce a report characterizing the site and provide recommendations for site remediation.