CIPV Purchasing Building Spill

Omak, WA | Used Oil & Fuel Spill | Cleanup Initiated Summer 2007

Site Overview

The Colville Indian Precision Valley (CIPV) site is located at 729 South Jackson Street and 1100 East 8th Avenue in Omak, Washington. In the summer of 2007, CIPV personnel discovered oil-stained soil near a group of discarded aboveground storage tanks located behind the purchasing building.

Discovery and Contamination

Upon investigation, eight leaking tanks were found in a 65 by 50-foot area. These tanks contained a mixture of hydraulic oil, used oil, and fuel, and were visibly leaking onto the surrounding soil. Soil sampling confirmed contamination in the impacted area.

Cleanup and Remediation

Cleanup activities included:

• Removal of remaining liquids from the aboveground tanks

• Excavation of oil-impacted soils

• Off-site disposal of contaminated soil at an approved facility

• Backfill and compaction using clean sand sourced from CIPV’s own fill stockpile

Current Status

The impacted area has been restored and stabilized. No further contamination has been observed since the remediation was completed.