Project description for soil vapor extraction / steam injection remediation by GWS Environmental Contractors Inc. The use and implementation of steam injection remediation on No 2. heating oil. Project Location: 18 Institute Street Freehold, NJ. Project: Residential Fuel Oil Remediation Project using Steam/SVE. I. Extent of Contamination: Fuel oil contamination exists in the rear yard immediately surrounding the former underground storage tank and extends West under the residence and east into the neighbors property. The estimated size of the contaminated area is 22’ x 18’ to a depth of 26’ below grade in the back yard of the residence. The available area to house equipment behind the residence is 50’ x 75’.