Remediation Services
EPSYS was retained to provide remediation services associated with the loss of approximately 18,000 gallons of No. 2 fuel oil. The fuel oil was released from a pressurized supply line from four 20,000 gallon underground storage tanks (UST) and ultimately impacted four acres. Following the report release, corrective action was implemented including repair of the line, installation of a cut-off trench and two recovery pumps, and the placement of absorbent booms in a draining culvert.

Ten groundwater monitoring wells and numerous soil borings were installed on and off-site to determine the vertical and lateral extent of hydrocarbon migration. Results indicated that the hydrocarbons were limited to the upper 2.5 feet of the soil column on the adjacent, down-gradient property. The soil in this area was aerated in an attempt to enhance bioremediation. Subsequent soil sampling indicated that subsurface hydrocarbons in this area had been effectively remediated to Pennsylvania Department of Environmental Protection (PADEP) acceptable levels.

Groundwater samples continue to be obtained and analyzed from the ten monitoring wells. Presently, dissolved-phase hydrocarbons are limited to the area immediately adjacent to the release and down-gradient of pipeline release.

Soil vapor extraction and air sparging tests were conducted to determine the effectiveness of these technologies in the recovery of subsurface hydrocarbons. Based upon these tests, subsurface soil conditions prohibited the use of these technologies, therefore a groundwater pumping test had to be performed. Based on the results of the pumping test, a groundwater extraction and treatment system will have to be installed.

EPSYS assisted the client in obtaining funds from the State Storage Tank Indemnification Fund. The funds covered all the remediation costs except the standard $5,000 deductible.