COMPLIANCE INFO_2008-PRESENT - Laserfiche WebLink

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Michael Leacox Page 5 of 1 1 groundwater remediation system. The groundwater treatment system was designed to be integral with and installed in concert with the construction of a Triple A baseball stadium that was constructed on the Site. Currently, the groundwater treatment system is operating and has resulted in the significant degradation and reduction in the concentrations of PCE and DCE in the groundwater. Dry cleaner solvent investigation/site characterization investigation, Davis, California — NCE is the expert consultant for a Settlement Group that to develop a conceptual site model and develop cost estimates to mitigate impacts from perchloroethene resulting from historical use of a dry cleaning facility. Project included the innovative assessment of perchloroethene to evaluate the lateral extent of groundwater and soil impacted with perchloroethene and the incorporation of a long term groundwater management scenario into the site characterization work. Investigation included soil gas surveys, installing soil borings, collection of in-situ groundwater samples and the strategic installation of monitoring wells. Project also included the Tier 1, II and III indoor air quality assessment and testing, along with evaluation of the indoor air quality data. The overall project strategy of is to develop a groundwater management plan that incorporates natural attenuation with enhanced biodegradation to protect the municipal water supply while implementing hot-spot removal of perchloroethene from soil that is a continuing source to the groundwater. Chapter 15 closure and wastewater treatment design - Developed aggressive management, financial and technical program for the closure of 160 acres of wastewater ponds containing sludge, soil, and wastewater with high concentrations of total dissolved solids for a major food processing facility in Madera, California. Previous closure plans were estimated to require greater than 12 years and $15 million to implement. This schedule was reduced to less than 5 years and estimated to require less than $4 to $6 million. The aggressive plan included the development of aggressive cleanup goals for groundwater and soil, design and construction of an innovative 2,500 gallons per minute evaporation system, installation of a pipeline to transfer extracted groundwater to the evaporation ponds, and the design and installation of a sludge and soil washing program. Groundwater and vadose zone models were used to develop the aggressive program. Other key project requirements included the operation and maintenance of a 10-well, 300-gallons-per-minute groundwater extraction system, quarterly groundwater and vadose zone monitoring for an Article 5 monitoring program, and installation of replacement domestic wells for nearby homeowners. Pond closure and waste characterization investigation, Stockton, California - Managed closure and demolition of a wastewater pond for a chemical plant in Stockton, California. Project included the installation of a pond cover to prevent winter rains from filling, and subsequent use of the cover as part of an innovative method for evaporation of the water. Project included development of closure criteria and cleanup goals for the sludge, remaining pond water, and soil. Project also included the designed investigation to characterize pond water, sludge, and effluent. Pond was slated for closure by the California Regional Water Quality Control Board as required under the Toxic Pits Closure Act (TPCA). Investigation was designed to evaluate the waste characteristics in an attempt to remove the pond from the TPCA program. Project included working directly with the California Environmental Protection Department - Alternative Technologies Division's concurrence program. Article 5 detection and evaluation monitoring program, Bishop, Inyo County, California - Develop an Article 5 detection monitoring program for a proposed waste management unit and implementation of an evaluation monitoring program for existing