Technology Status Report: In Situ Flushing - CLU-IN

In Situ Flushing Project Summaries
GWRTAC Case Study Database
GWRTAC ID: FLSH0027
Project Name: Lee Chemical, Liberty, MO
City: Liberty State/Province: MO
Primary GWRTAC Personal
Communication Source
(Name/Organization):
Project Summary:
Steve Kinser
U.S. EPA
Report(s)/Publication(s) (GWRTAC Source):
U.S. EPA, Nov. 1996: Inn. Trtmt. Techs.: Ann. Status Rpt. (8th Ed.), EPA 542-R-96-010, No. 8,
U.S. EPA OSWER (5102G) TIO, Wash., DC
Internet URL http://www.epa.gov/superfund/index.htm
The following text is from notes from an April 1997 and July 1998 conversations with the EPA RPM:
The site is a Missouri-lead site, and is located one mile away from the Kansas City reach of the
Missouri River; river loses water through this reach. Missouri River bottom sediments are
contaminated with chlorinated solvents. Flushing project is targeting vadose zone by re-circulating
untreated groundwater through four infiltration fields on site. There is no shallow confining layer
beneath the site. The city wellfield is located significant distance from site, however, a preferential
flowpath exists between one of these wells and the site. Water is pumped from one extraction well;
approximately 700,000 gallons per day of water is pumped and infiltrated; there is no on-site
treatment prior to re-injection. Over one recent three month period (April, May, June 1996), the
total water applied to the site was a little over two million gallons.
The site is to be remediated to MCLs. Performance results are not yet available. A five year
review will be conducted in June 1998; EPA has not yet received a copy of the five year report, but
indicated that the flushing system is operating without any problems. The city water supply has not
been impacted by the operation. Project costs were not available from reference source.
Report(s)/Publication(s) (Additional Information Sources):
U.S. EPA, Nov. 1996: Inn. Trtmt. Techs.: Ann. Status Rpt. (8th Ed.), EPA 542-R-96-010, No. 8,
U.S. EPA OSWER (5102G) TIO, Wash., DC
Internet URL http://www.epa.gov/superfund/index.htm
Ground-Water Remediation Technologies Analysis Center
Operated by Concurrent Technologies Corporation
Appendix - Page 59 of 164
Copyright GWRTAC 1998
Revision 1
Tuesday, November 17, 1998