Seattle Housing Authority working on soil remediation on 35th
Seattle Housing Authority working on soil remediation on 35th
A drill rig drills holes for the shoring posts that will support a wall. The holes were filled with Compact Density Fill, a diggable form of concrete. The site will be dug to a depth of 30 feet and all petroleum contaminated soil will be removed.
Patrick Robinson
Sat, 10/30/2010
Environmental engineering crews are working on a soil remediation project at the corner of 35th Ave. s.w. and Graham Street, specifically at 6058 35th Avenue s.w. on the site of a former service station.
The project was awarded to a local firm by the Seattle Housing Authority, owners of the land.
The work being done consists of the excavation of petroleum contaminated soil to an approximate depth of 30 feet below ground surface. Clean overburden soil will be segregated and stockpiled on site. The excavation will be stabilized using an engineered shoring wall on the western and southern property boundaries to support the City of Seattle Right-of-Way and associated infrastructure.
Petroleum contaminated soil will be hauled off site and disposed of at an appropriate contaminated soil disposal facility.
The project cost is estimated between $600,000 and $675,000.
The work is expected to take approximately six weeks.
