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KS Update 05/27/03 <br /> REGENESIS <br /> INSTALLATION INSTRUCTIONS <br /> Hydrogen Release Compound (HRC-XTM) <br /> [eXtended release formula] / <br /> (Direct-Push Injection) <br /> General Information <br /> HRC-XTM is a special formulation of the patented and widely accepted Hydrogen Release <br /> Compound (HR.0®) which has been successfully installed on hundreds of project sites <br /> world-wide. It is specifically formulated to treat residual dense non-aqueous phase <br /> liquids (DNAPL) in the groundwater and provide a long-term solution to groundwater <br /> plume control. HRC-XTM is manufactured as a viscous gel that can be injected into the <br /> saturated zone in a grid- or barrier-based configuration for either localized area or cutoff- <br /> based treatment approaches. The use of HRC-XTM for groundwater remediation offers a <br /> comparatively simple and cost effective remediation alternative for sites that would <br /> otherwise require unacceptably long periods of time for natural attenuation or the high <br /> levels of capital investment and operating expense associated with active remediation <br /> technologies. <br /> Regenesis believes that the best method to install HRC-XTM into the subsurface is using <br /> direct-push drilling techniques. This method allows for the product to be pushed into the <br /> formation instantly and provides greater coverage/treatment over the life of the product. <br /> As a minimum the following equipment will be needed to perform this type of <br /> installation: <br /> o Direct-push drilling unit <br /> o Grout pump <br /> o Appropriate hose assembly including a fitting that links a hose from <br /> the grout pump to the direct-push rods <br /> o A method to heat the HRC-XTM(see below) <br /> 0 100+gallon Water tank(or equivalent) <br /> o Pressure washer(or equivalent) for cleaning <br /> When is HRC-XTM Appropriate? <br /> HRC-XTM should not be considered appropriate for all potential HRC®projects because <br /> of its physical and chemical characteristics. The viscosity of the product is <br /> approximately l Ox greater than that of HRCT and its release period is about twice as long. <br /> Based on their cumulative project experience Regenesis's Technical Service Group <br /> 1011 Calle Sombra.San Clemente,CA 92673•tel: 949.366.8000.fax: 949.366.8090 <br /> kim@regenesis.com•www.regenesis.com <br />