John Epperson

John Epperson

Of Counsel


  • Energy & Natural Resources Law
  • Government, Regulatory & Administrative Law

WSG Practice Industries


California, U.S.A.


Mr. Epperson is a member of the Firm’s Energy & Natural Resources Group in the San Francisco office. Mr. Epperson has a wide range of experience in environmental, health and safety law. He counsels clients regarding regulatory compliance, transactions, and permitting/entitlement issues.  In addition, he represents clients in administrative enforcement actions and advises clients in their efforts to investigate and remediate contaminated properties, including associated cost recovery efforts and regulatory agency oversight.  Mr. Epperson provides transactional due diligence, identifying and resolving environmental and natural resource issues to facilitate transactions, including for renewable energy projects.

Mr. Epperson has extensive experience before federal, state, and local regulators and district attorneys regarding environmental, health and safety issues. His practice includes; the Clean Water Act (including stormwater, discharge permits, and citizen suits), RCRA, CERCLA, and their state law equivalents; green chemistry/sustainability issues; California’s Proposition 65; and investigation of occupational accidents, workplace inspections and enforcement actions under federal and state OSHA(s).

In addition to his practice, Mr. Epperson serves as an adjunct professor at Golden Gate University School of Law, is an advisor to the Bar Association of San Francisco Environmental Law Section Executive Committee, and is a former member of the California State Bar Environmental Law Section Executive Committee. Mr. Epperson was also elected to serve as the Secretary of the 2020 Executive Committee of the Bar Association of the San Francisco’s Environmental Law Section.

Bar Admissions

  • California
  • Washington (Inactive)


  • Lewis and Clark Law School
  • Purdue University
Areas of Practice

Energy & Natural Resources Law | Environmental Law Practice | Government, Regulatory & Administrative Law


New “Warehouse Indirect Source Rule” Requires Action Now
Buchalter, July 2021

  The Warehouse Indirect Source Rule requires some warehouse operators to begin collecting compliance information starting July 1, 2021. The “Warehouse Indirect Source Rule,” adopted by the South Coast Air Quality Management District on May 7, 2021, requires some warehouse operators to begin collecting compliance information starting July 1, 2021...

General Permit for Winery Process Water Discharge Issued
Buchalter, April 2021

  The State Water Resources Control Board (“SWRCB”) approved the much-debated General Waste Discharge Requirements for Winery Process Water (“Winery Order”) on January 20, 2021. Although the official version of the approved Winery Order has not been released, an uncertified copy has been posted on the SWRCB website. Based on that document, most of the elements of the draft Winery Order remain unchanged from the most-recent draft issued for public comment...

Buchalter COVID-19 Client Alert: Cal/OSHA Emergency COVID-19 Workplace Safety Standard Takes Effect
Buchalter, December 2020

  Cal/OSHA has promulgated emergency regulations for preventing COVID-19 transmission in the workplace (the “Emergency Standard,” or the “Standard”). The Emergency Standard became effective immediately upon approval by the Office of Administrative Law on November 30, 2020, and will remain in effect for six months. It may be extended or converted to permanent regulations by Cal/OSHA. The Emergency Standard, now codified in Title 8, sections 3205; 3205...

Additional Articles

  • Changes Coming to Phase I Environmental Site Assessments
  • Buchalter COVID-19 Client Alert: OSHA Issues COVID-19 Vaccination and Testing Emergency Rules
  • EPA Announces Comprehensive PFAS Strategic Roadmap
  • Buchalter COVID-19 Client Alert: COVID-19 Infection May Be an OSHA Recordable Work-Related Illness
  • New “Warehouse Indirect Source Rule” Requires Action Now
  • Cal/OSHA COVID-19 Safety Rules to be Revised
  • General Permit for Winery Process Water Discharge Issued
  • Major Changes Coming to Prop 65 “Short-Form” Warnings
  • Buchalter COVID-19 Client Alert: Cal/OSHA Emergency COVID-19 Workplace Safety Standard Takes Effect
  • Buchalter COVID-19 Client Alert: California Employers Will Soon Have to Take Action upon Notice of Potential Covid-19 Exposure within One Business Day
  • Buchalter COVID-19 Client Alert: Guidance in Implementing San Francisco Department of Public Health COVID-19 Health Screening Forms
  • Some Relief for Generators of Retail Hazardous Waste in Sight
  • Buchalter COVID-19 Client Alert: UPDATE: San Francisco’s Emergency Ordinance on Cleaning Commercial Office Buildings and Hotels Signed by Mayor and Became Effective July 17, 2020
  • Draft General Permit for Winery Wastewater Discharge Released for Comment
  • Buchalter COVID-19 Client Alert: San Francisco Supervisors Pass COVID-19 Emergency Ordinance on Cleaning Hotels and Commercial Office Buildings
  • Federal Court Prohibits Prop 65 Warning on Glyphosate-based Herbicides
  • Buchalter COVID-19 Client Alert: San Francisco Continues “Shelter in Place” Order with Limited Expansion of Essential Business Operations
  • Buchalter Client Alert COVID-19: Planning for Re-Opening: What Owners, Property Managers and Users of Office and Retail Properties Should Consider
  • Buchalter Client Alert COVID-19: Environmental Compliance during COVID-19 (Hint: EPA did not Suspend Environmental Laws)
  • CalEPA Draft Vapor Intrusion Guidance Released for Public Comment
  • Businesses Must Now Demonstrate Storm Water Permit Compliance to Get a Business Permit