This is a brief description of studies that exemplify the methods and approaches that have been developed and used by Oak Ridge National Laboratory (ORNL) researchers in conducting integrated assessments. See the complete list of Integrated Assessment Briefs to find out more about ORNL's efforts in integrated assessment. Contact Mike Farrell (farrellmp@ornl.gov) for more information.

Petitions for Alternate Concentration Limits

Alternate concentration limits can be justified.

Can alternate approaches be used successfully when determining cleanup standards under the Resource Conservation and Recovery Act (RCRA) for Department of Energy (DOE) sites?

Extensive site testing, computer modeling, and effective use of innovative technologies at DOE's Kansas City Plant has shown that alternate concentration limits can be justified. The conclusion is based on two factors: the effect of building drains and utility leaks on groundwater flow and dilution by the nearby surface waters.

An alternate concentration limit petition requesting cessation of groundwater pump-and-treat operations is undergoing final sponsor and DOE review before presentation to the Environmental Protection Agency Region VII and the State of Missouri.

U.S. Department of Energy. 1994. Alternate concentration limit demonstration for the Northeast Area/001 Outfall, TCE Still Area, and Underground Tank Farm Area. Kansas City Plant, Kansas City, Mo. (draft).

Where To?

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Integrated Assessment Briefs. 1995. ORNL/M-4227. Oak Ridge National Laboratory, Oak Ridge, TN.