Kathryn L. Oehlschlager

Kathryn L. Oehlschlager


Kathryn L. Oehlschlager


With more than a decade of experience in environmental law, Kathryn Oehlschlager has built a robust practice spanning environmental and land use compliance counseling, state and federal enforcement defense, and major litigation.

Public and private clients turn to Kathryn for advice on compliance with all facets of environmental and land use law, including CEQA, NEPA, federal and state endangered species laws, contaminated site remediation, water quality and supply issues, and laws regulating solid and hazardous waste.  She routinely represents clients in all aspects of the California Environmental Quality Act (CEQA) project review process, including preparation, review, and analysis of negative declarations, draft environmental impact reports, and final environmental impact reports.  Kathryn also has substantial experience managing contaminated sites, from investigation and remediation through the entitlement process and redevelopment. 

As a compliance counsellor, Kathryn’s goal is to help her clients minimize downstream risk and avoid litigation and enforcement.  As a litigator, Kathryn’s goal is to achieve the best results for her clients, deftly navigating administrative proceedings, negotiations with regulators and opposing parties, and high-stakes trials.


  • Represented munitions testing facility in connection with CEQA review and negotiation of complex endangered species issues for remediation project on land designated as critical habitat for a variety of protected species, including negotiation of state and federal incidental take permits.
  • Represented Muslim community group in connection with CEQA compliance and litigation arising out of application to construct religious and community center in San Martin, California.
  • Represented semiconductor manufacturing company in defense of toxic tort action alleging in utero exposure to contaminants in early semiconductor “clean rooms” in Silicon Valley.
  • Represented City of Sunnyvale in CEQA trial and appellate proceedings resulting in published decision on selection of baseline for environmental impact analysis.  Sunnyvale West Neighborhood Ass’n. v. City of Sunnyvale City Council, 190 Cal. App. 4th 1351 (2010).
  • Represented large industrial entity identified by EPA as a CERCLA potentially responsible party for former uranium mine site in New Mexico.
  • Represented City of Richmond in litigation and settlement of two CEQA actions challenging residential project in Point Richmond, California.
  • Defended various manufacturers, suppliers, and retailers in defense of Proposition 65 actions regarding acrylamide, phthalates, and lead.
  • Represented Fortune 500 pharmaceutical company in complex toxic tort action filed in federal court by over 2,000 plaintiffs, alleging exposure to hexavalent chromium in groundwater and dust emissions.
  • Defended large landowner in defense of contractual, common law, and statutory claims in dispute over property slated for redevelopment as major technology campus in Mountain View, California.

Professional, Community And Pro Bono Involvement

  • Women in Environment, Board Member, 2018
  • Association of Environmental Professionals
  • Environmental Law Institute
  • Groundwater Resources Association
  • California Women Lawyers
  • Bar Association of San Francisco, Environmental Law Section
  • American Bar Association

Honors And Rankings

  • Sacramento Magazine, Top Lawyer, Land Use/Zoning, 2018

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