WCEC’s staff of engineers, scientists, and technicians possess a unique collaboration of academic skills with practical hands-on experience gained from over 18 years of remediation system design and implementation.  We have designed, installed and/or operated over 50 remediation systems in Minnesota, over 20 remediation systems in Montana, and over 20 remediation systems in other states utilizing a wide range of technologies.

WCEC has performed source area removal through excavation at numerous sites in Minnesota, Montana, and the Dakotas.  WCEC oversees the excavation, soil profiling, confirmation sampling, transport manifest preparation, and disposal for soils containing a variety of petroleum based and agricultural chemical contaimiants.

WCEC possesses expertise in dissolved and seperate phase groundwater plume remediation utilizing multi-phase extraction, soil vapor extraction, air sparging, ozone sparging, oxygen injection, and enhanced bioremediation protocols.  WCEC's extensive experience in site investigation and remediation technologies results in effective application of the most appropriate remedial technology for a site and reduces overall project duration and expense.


WCEC is proficient at data interpretation, data analysis, providing recommendations and options for site closure and/or remediation, and communicating with clients and various regulatory staff.  Our goals for site investigations have always been to continually communicate the process and progress of the project to our client and to achieve site closure as efficiently and cost effectively as possible.

A leaking UST in Kalispell, MT was the source of free product flowing into a storm sewer that eventually discharged to a pristine mountain stream.  WCEC implemented an innovative pump and treat system to recover free product and water at a controlled depth from the sewer, and treat the recovered liquids through oil-water separation, air sparging, and activated carbon.


WCEC implemented an oxygen enhanced bioattenuation injection program at a UST release site in Sunnyside, WA to address a dissolved phase BTEX plume in the fine grained/low velocity soil matrix.  A grout pump was used to inject the calcium peroxide slurry at 75 locations within the former UST basin.  Effective mechanical delivery of the product throughout the contaminated zones resulted in a reduction of benzene from 600 ppb to non-detect within 6 months.  No rebound of contaminants was noted following the one-time injection program.  

WCEC is an Equal Opportunity Employer
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