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POOM LARAMIDE <br /> Statement of Qualifications EnvkVnMeet4 UC <br /> alternative remediation system consisting of intercepting and treating water at the <br /> spring was proposed, and with some modifications was promulgated by the United <br /> States Environmental Protection Agency in the final EE/CA for the site. <br /> Walter continues to work with the mine owner as the project moves toward <br /> implementation of the selected remedy. The ultimate goal is to transfer the land to a <br /> consortium of public agencies for inclusion in the open-space program in this <br /> recreational area of Colorado. <br /> Investigation of Groundwater Contamination, Califomia: This project included an <br /> investigation of volatile organic and metal contamination of groundwater at an active <br /> manufacturing facility in California. As project hydrogeologist, Walter was responsible <br /> for planning the field investigation, supervising the field crews, and interpreting the <br /> results of the investigation. The work was performed under USEPA Superfund and <br /> State of California regulations. <br /> Walter developed lithologic cross-sections based on results of continuous coring <br /> performed at several locations on the site. Using those interpretations, he designed <br /> groundwater monitoring wells and supervised their installation. The monitoring wells <br /> were designed and installed to intercept shallow and deep aquifers separated by finer- <br /> grained aquitards. <br /> Groundwater samples were collected and analyzed for a range of organic and <br /> inorganic constituents. Walter also designed an innovative, pressurized sampling <br /> apparatus and used it to collect vertical-profile groundwater samples from two deep <br /> production wells at the site. Based on the results of these analyses and the results of <br /> soil and soil-gas investigations, Walter determined the extent of contamination at <br /> different areas of the site. <br /> A remedial investigation/feasibility study report was prepared detailing the results of the <br /> investigation and evaluating a range of remediation options. Walter also prepared a <br /> comprehensive summary report describing 8 years of previous investigative work at the <br /> site. <br /> Groundwater Modeling <br /> Chlorinated Solvent Remediation, New Jersey. Walter acted as project hydrogeologist to <br /> assist with the remediation of trichloroethene (TCE)at an active manufacturing facility <br /> in New Jersey. TCE was found in groundwater over 20 years ago at concentrations <br /> suggestive of residual free product in the fractured bedrock beneath the facility. An <br /> established groundwater pump-and-treat system had been ineffective in reducing <br /> concentrations or meeting remediaton goals. The site was being remediated under <br /> state regulations, with a default groundwater remediation goal of 1 microgram per liter <br /> (µg/L)for TCE. <br /> Walter implemented a finite-element model of groundwater flow and contaminant <br /> transport at the site to evaluate suitable remedial action goals for the facility. The <br /> modeled area included a regional, low-permeability fault zone that restricted <br /> groundwater flow and the transport of contaminants. Calibration targets included an <br /> August 2004 Page 4 of 7 <br />