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An employee-owned company
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Rosecrans and Sepulveda
Partners - Redevelopment of
Honeywell Chemical Plant
Site Closure Strategy
El Segundo, California |
Worked in concert with outside council, development team, and former property owner to develop a strategic approach to achieve site closure and redevelop a 38 acre parcel of land. Developed environmental grading plans that were approved by the Los Angeles Regional Water Quality Control Board (RWQCB). Implemented monitoring program during grading. Identified areas of concern and implemented Interim Remedial Measures (IRMs) based on the presence of volatile organic compounds and metals at the site. Negotiated with the RWQCB and managed the installation of vapor barrier systems that were a key institution control which allowed the development of a new commercial center. The RWQCB issued a partial closure for soils which allowed the redevelopment to proceed based in part on the installation of the vapor barrier system and the completion of IRM to address shallow soil impacts. The center opened for business prior to the Christmas season on 2006. |
Union Pacific Railroad
Remediation and Site Closure
Long Beach, California |
Negotiated closure of site pending redevelopment with the RWQCB. Implemented accelerated remedial program involving heat-enhanced vapor extraction to address aromatic /halogenated hydrocarbons, and removal actions to address middle distillate petroleum hydrocarbons. Following the completion of remedial action a site-specific risk assessment that was reviewed and approved by OEHHA. The risk assessment assumed that arsenic impacted soil, which was not addressed during the remedial action, would be placed into an on-site area of containment, or removed from the site, during the development of a new park by the City of Long Beach. Based on the results of the remediation, and the assumptions defined in the risk assessment, the property was closed by the RWQCB in December of 2006. |
VSI Corporation
Remediation and Site Closure
Chatsworth, California |
EnviroSolve is currently managing site closure activities at a former aerospace fastener manufacturing facility in Chatsworth, California. Because of damage suffered in the January 17, 1994 Northridge earthquake, operations stopped and the building, after extensive refurbishment, was leased. Four vapor extraction wells, three passive injection wells, and eight groundwater monitoring wells were installed to remediate the soil and assess groundwater conditions beneath the site. Following assessment activities it was determined that the soils beneath where the former clarifier area had been located were impacted by volatile organic compounds similar to those formerly used at the site.
As part of this remediation/property transfer project, EnviroSolve undertook an in-depth Remediation Feasibility Study, including a soil vapor survey, to identify potential contributors that may have impacted groundwater entering the site from hydraulically upgradient. EnviroSolve also prepared a Public Participation Plan, and designed, installed, and is operating a vapor extraction system to remove volatile organic compounds from site soils. Groundwater conditions were assessed to determine the appropriate course of future actions. Groundwater remediation is ongoing with maximum PCE concentrations having been reduced from 6000 g/l to approximately 500 g/l in five years. Soil remediation has now been completed and an NFA letter for soils received from DTSC. |
Former Revere Copper Site
Site Closure
Commerce, California |
EnviroSolve was retained to provide concrete slab removal and soil remediation verification services for the closure of this former metal finishing facility. The work included on-site sampling and testing to determine location of chlorinated solvent and Stoddard solvent residuals, design and cost estimating of on-site soil treatment processes, and estimating of costs for excavation and treatment in off-site reclamation facilities. Closure of the facility required more than five years of effort, extensive negotiations with regulatory agencies, and the work of several environmental consultants. EnviroSolve provided the final facility closure and remediation support services that resulted in the sale of the facility for other commercial/industrial uses |
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