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Litigation Support and Expert Witness Testimony




PES professionals have provided technical support to clients on over 30 litigation cases.
Representative cases include:

  • Transport of solvents in groundwater to offsite areas (Crown, Cork and Seal Company v. Aetna Casualty & Surety Co., et al., Hudson County Superior Court, New Jersey; Regal Almond v. Nestle et al., San Joaquin County Superior Court; Davila v. Arrow Development Co. and Teledyne, Inc. in US District Court, Northern District);
  • Effects of proposed roadway on water supply well in Sebastopol (Bryan v. Peter, Sonoma County Superior Court);
  • CERCLA cost recovery for soil and groundwater degradation due to dry cleaning operations in Burlingame, (Stanton Road Associates v. Lohrey Enterprises, et al., US District Court Northern District);
  • Construction delays due to improper design of dewatering system in Oakland (EBMUD v. Oakland Redevelopment Agency, Alameda County Superior Court);
  • Source identification and appropriate remedial measures for petroleum hydrocarbon contamination of soil and groundwater in Concord (Clayton Road Associates v. Federated et al., Contra Costa County Superior Court);
  • Cost recovery from multiple parties for petroleum hydrocarbon contamination of soil and groundwater in Petaluma (Felix Realty Group v. Southland Corporation et al., Sonoma County Superior Court);
  • Surface spill of petroleum hydrocarbons and effects on soil and groundwater conditions at a site in Cotati (Cervantes v. Chevron, Sonoma County Superior Court); and
  • Identification of source of petroleum hydrocarbon contaminated soil and groundwater and estimation of remediation costs for sites in San Rafael, Santa Rosa, Santa Barbara, San Leandro, Santa Cruz and Martinez (Tri Realty v. Exxon, Marin County Superior Court; City of Santa Rosa v. Chevron, US District Court Northern District; L.M.E. Investments v. ARCO, et al., Santa Barbara County Superior Court; Simons v. Concrete Wall Sawing Company et al., Alameda County Superior Court; Brouwer v. Zaballos, et al., Santa Cruz County Superior Court; Safapour v. Hildebrand, Contra Costa County Superior Court).

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Litigation Support and Expert Witness Testimony

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