was contracted by a client to provide Operation & Maintenance activities
for an existing 31-well groundwater remediation system at a metal manufacturing
facility located in Ohio. Groundwater at the site is impacted with VOCs,
chromium, and hexavalent chromium contaminants in groundwater. EFS was
initially contracted to review the existing groundwater treatment system and
provide recommendations for optimizing the system.
provides monthly operation and maintenance activities including; collecting
NPDES samples, recording totalizer flow meter readings from each recovery well,
inspecting and cleaning air stripper flower filter screens, cleaning the ISCO
bubbler flow meter, inspecting and measuring the diameter of upstream discharge
piping, greasing the drive and fittings of each air stripper blower, verifying
phone line operation, verifying recovery well pump operation, coordinating
shipment of monthly samples to the laboratory, and inspecting the newly
installed anti-fouling agent pumps, piping, and storage container. Quarterly
activities also include preventative maintenance on the system air stripper and
electric drive motors.
In addition, EFS has provided multiple phases of investigative field services at the site, including the collection of soil samples, installation of groundwater monitoring wells, and collection of soil vapor ports.
was also contracted to decommission the facility’s Chrome Room groundwater
EFS continues to provide quarterly sampling and monthly operation & maintenance activities onsite, which include diagnosing system performance issues and providing equipment maintenance on an as-needed basis. In addition, EFS also provides field services in response to system alarms on a continual basis.