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PCE groundwater plume extends from 25th & Main Streets approximately 2.5 miles S-SE. Two drycleaning facilities are identified as sources (American Uniform, 2500 N. Main and One Hour Martinizing, 2526 N. Main). In general the contamination is low level (<50 ug/L). Release appears to be from private and city sewer lines with multiple releases along the sewer lines linking to the main line on the east side of Main St. that heads south from the drycleaning facilities. Hot spots are identified up to 1/2 block south of the cleaning facilities. Two PWS wells have been impacted and are shut down (PWS-9 and PWS-12). Multiple residences were connected to city water.

In 1998 a KVA C-Sparger remediation system was installed at the Kansas State Fair Grounds, the system was shut down in 1999 due to maintenance problems and abandoned after upgradient groundwater concentrations declined to below MCLs.

In 1999 a SVE remediation system was installed near the two dry cleaners and along the sewer line "hot spots". The SVE system was very effective and shut down in early 2004 due to declining soil vapor and groundwater PCE levels (below MCLs). Several rebound studies were conducted to verify contamination would remain below MCLs.

Leading edge of contaminant plume is regressing so downgradient remediation is not anticipated.

The site underwent long-term monitoring with annual groundwater sampling.

The site was closed in May 2012. Concentrations of dry cleaning solvents, and the associated breakdown products thereof, in groundwater have dropped below the Environmental Protection Agency, Maximum Contaminant Levels for at least 3 years.