Rehabbing for Remediationby David Banton, Associate; Golder Associates, Inc., Redmond, Wash.,
Robert Anderson, Senior Hydrologist; Golder Associates, Inc., Redmond, Wash.,
Serial Information: Civil Engineering—ASCE, 1994, Vol. 64, Issue 3, Pg. 64-65
Document Type: Feature article
Workers for Moses Lake detected trichloroethylene (TCE) in three of the city's water wells. The concentrations were low, around 5 to 15 parts per billion, just above the maximum contamination level set by the Environmental Protection Agency. City officials wanted to remove TCE from the water completely. Rehabilitating contaminated city water wells in Moses Lake, Wash. took care of the pollution problem for less than half the price of conventional remediation techniques. Conventional techniques, were expensive, especially for a small city. A single air stripper for example, would cost about $500,000, not including operation and maintenance and engineering and administrative costs. The total cost of rehabilitation for one well amounted to about $200,000 (including a new submersible pump and fittings for $50,000). Wells located in similar hydrogeology, often found in the Western and Plains states, may benefit from this approach.
Subject Headings: Rehabilitation | Remediation | Wells (water) | Water pollution | TCE | Urban areas | Lakes | Labor
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