About Geoff

Geoff Tichenor is a problem solver first, environmental lawyer second. Geoff helps clients navigate state and federal environmental laws applicable to air emissions, water discharges, storage tanks, waste management, contaminated lands, chemical storage reporting, and spills. He regularly counsels clients facing environmental enforcement actions and presenting complex permitting and compliance questions. Geoff has broad experience representing clients before state and federal agencies, including on rulemakings. He also regularly advises clients on the risks and liability associated with real estate and other business transactions, primarily in the context of corporate mergers, acquisitions, and divestitures. Geoff’s clients look to him to develop effective corporate environmental management and auditing strategies.

Geoff was selected as an Oregon Environmental Super Lawyer Rising Star for 2013 and 2014 and as one of the Portland Business Journal’s Forty Under 40 and recognized by Chambers USA from 2017 to 2023. Geoff currently serves as co-leader of the firm’s Consumer Products, Manufacturing & Transportation Industry Group.

Previously, Geoff worked with Seyfarth Shaw, LLP, Chicago, Illinois (2006) and The Collins Law Firm, Naperville, Illinois (2005–2006). He also served as a law clerk to The Honorable Lesley Wells, United States District Court, Cleveland, Ohio (2004–2005) and the Oregon Department of Justice, Natural Resources Section, Portland, Oregon (2002–2004). During law school, Geoff externed with The Honorable Lynn Adelman, United States District Court, Milwaukee, Wisconsin (Summer 2003).


“‘Geoff has been excellent to work with and shows excellent strategy and communication.’ ‘He is an unrivaled creative problem solver with the legal chops to actually solve the problem.’ —Chambers 2022          
“‘Geoffrey is responsive to our needs and well networked to bring in additional resources when appropriate.’ ‘Geoffrey is top-notch—he is extremely knowledgeable in air, waste and water, and gives great practical advice.’” —Chambers 2021          
I hold Geoff in the highest regard and would wholeheartedly recommend him to anyone.”  —Chambers 2019          


Expand to Read More + See Less -


Government Action / Citizen Suits

  • Defense of clients in federal and state environmental enforcement actions, including negotiating civil settlements, penalties, supplemental environmental projects, and responding to information requests.
  • Representation of clients in responding to 60-day notice-of-intent-to-sue letters from environmental organizations.
  • Developed comments for clients on proposed administrative rules, state and federal laws.
  • Assist clients to voluntarily self-disclose environmental violations, including under federal and state audit policies.
  • Representation of industrial clients in resolving OSHA citations.
  • Assisted corporate clients facing criminal investigations.

Compliance Counseling

  • Provided regulatory compliance counseling to clients under the Resource Conservation and Recovery Act; Clean Air Act; Clean Water Act; Comprehensive Environmental Response, Compensation and Liability Act; Safe Drinking Water Act; Emergency Planning and Community Right-to-Know Act; Toxic Substances Control Act; Federal Insecticide, Fungicide and Rodenticide Act; and comparable state laws.
  • Advised clients regarding the classification and transportation of hazardous materials under state and federal regulatory programs, including requirements prescribed by the U.S. Department of Transportation’s (DOT) Hazardous Materials Regulations (HMR).

Environmental Permitting

  • Assisted industrial facilities to obtain and renew wastewater discharge permits.
  • Assisted public wastewater treatment facility in NPDES permit renewal process.
  • Assisted clients to obtain WPCF permits under Oregon’s Underground Injection Control Program.
  • Assisted municipality to renew its NPDES MS4 permit.
  • Assisted industrial facilities to obtain and comply with air permits, including Title V and Major Source New Source Review permits.

Due Diligence / Environmental Business Transactions

  • Conducted environmental due diligence in business and real estate transactions, including on behalf of parties interested in pursuing oil and gas development ventures, acquiring and divesting large-scale manufacturing operations, wind farms and biomass facilities.
  • Drafted environmental provisions in letters of intent, purchase and sale agreements, and related documents in real estate transactions.
  • Assisted buyers to obtain coverage under environmental permits held by sellers.
  • Representation of clients in brownfields transactions to negotiate prospective purchase agreements and comfort letters, obtain environmental insurance, enter into post-closing cleanup agreements, and employ other tools to mitigate ongoing liability.


  • Representation of clients in private environmental cost recovery actions under Oregon, Washington, and federal clean-up laws.
  • Assisted clients in negotiating agreements with federal and state governments to resolve their potential liability for contamination.
  • Negotiation of cost sharing, access, and other agreements between private parties.

Chemical Management

  • Advised clients with immediate and periodic (including Tier IIs, Form Rs, and Form Us) chemical storage and release reporting responsibilities under state and federal law.
  • Advised clients with PCB requirements under the Toxic Substances Control Act and equivalent state laws.
  • Advised clients with chemical import and export requirements.
Expand to Read More + See Less -

Honors & Activities

Professional Honors and Activities

  • Vice Chair, Air and Waste Management Association, Oregon Chapter, Current
  • Selected as one of “America’s Leading Lawyers for Business” (Oregon) by Chambers USA (currently: Environment), 2017–2023
  • Listed among Rising Stars (Environmental), Oregon Super Lawyers®, 2013–2014
  • Recipient, Stoel Rives LLP Andrew Guy Pro Bono Award, 2021
  • Selected by the Portland Business Journal as a Forty Under 40 honoree, 2013
  • Selected as an “Up & Coming Lawyer” by The Oregon Daily Journal of Commerce, 2012
  • Adjunct Professor, Clean Air Act Seminar, Lewis & Clark Law School, 2012
  • Steering Committee Member, Northwest Environmental Conference
  • Volunteer Attorney, Multnomah County Legal Aid Services Clinic
  • Member, Environmental and Natural Resources Section, Oregon State Bar Association
  • Member, Sustainable Future Section, Oregon State Bar Association
  • Past Mentor Attorney, Multnomah County Bar Association
  • Past Mentor Attorney, Lewis & Clark Law School
  • Past Member, Oregon State Bar House of Delegates

Civic Activities

  • Board member, Literary Arts
  • Volunteer and past board chair, Portland Homeless Family Solutions
  • Volunteer, Fences for Fido
  • Multnomah County Election Protection Observer
Expand to Read More + See Less -
Insights & Presentations

Insights & Presentations

  • Presenter, “Air Rulemaking,”  “Toxics Release Inventory: The Basics of Reporting,” Business & The Environment CONFERENCE · EXPO, Northwest Environmental Business Council (NEBC), December 7, 2022
  • Presenter, “Decarbonization” (Overview of the Oregon Climate Protection Plan and Washington Climate Commitment Act), Food Northwest Process & Packaging Expo, February 4, 2022
  • Presenter, “Cleaner Air Oregon: Three Years In, How’s it Going?” Business & The Environment CONFERENCE · EXPO, NEBC, December 1, 2021
  • Moderator, “Climate Change: Laws, Regulations, Legislation and New Ideas,” Air Quality & Climate Change, Environmental Law Education Center webinar, March 25, 2021
  • Presenter, “Cleaner Air Oregon,” Business & The Environment CONFERENCE · EXPO, NEBC, December 8, 2020
  • Moderator, “Fire Recovery Conversation,” Oregon Brownfields Conference, NEBC, October 5, 2020
  • Presenter, “Air Quality Update,” Environmental Law Education Center webinar, June 3, 2020
  • Presenter, “Forestry and Climate Change,” Pacific Northwest Timberlands Management, Regulations, Litigation, and Business Considerations, Portland, Oregon, March 12, 2020
  • Presenter, “Cleaner Air Oregon: How is it going?” Business & The Environment CONFERENCE · EXPO, Portland, Oregon, December 10, 2019
  • Presenter, “Advanced Air: Oregon’s New Toxics Rules Explained,” Business & The Environment CONFERENCE · EXPO, Portland, Oregon, December 12, 2018
  • Presenter, “Cleaner Air Oregon: The (near) Final Rule,” Cleaner Air Oregon: What the New Toxics Program Means to You? Stoel Rives seminar, November 28, 2018
  • Author, Sponsors’ Note, How Oregon Works: Manufacturing, Portland Business Journal, November 1, 2018
  • Presenter, “Clean Air Act Compliance: New Winds Blowing at EPA,” Stoel Rives webinar, May 16, 2018
  • Moderator, “Introduction to Air Toxics,” Northwest Environmental Conference & Tradeshow, Portland, Oregon, December 5, 2017
  • Moderator, “Air Quality - Charting a New Regulatory Course,” Northwest Environmental Conference & Tradeshow, Portland, Oregon, December 6, 2016
  • Presenter, “Navigating the DEQ Enforcement Process,” NEBC Cascade Chapter Luncheon, February 11, 2016
  • Moderator: Advanced Air Session, Northwest Environmental Conference & Tradeshow, December 10–11, 2015
  • Presenter: “EPA Changes the Rules (Again): Recent Changes to the Definition of ‘Solid Waste,’” Oregon State Bar Environmental and Natural Resources Section, October 23, 2015
  • Presenter, “The Definition of Solid Waste Rulemaking,” Stoel Rives ELUNR Workshop Series, May 21, 2015
  • Presenter, “Oregon’s Revised Air Rules—DEQ Kitchen Sink Rulemaking, It’s Here At Last,” Stoel Rives ELUNR Workshop Series, April 22, 2015
  • Presenter, “Spill Prevention, Control and Countermeasure (SPCC) Plans: Does Your Facility Need One?” Stoel Rives ELUNR Workshop Series, November 19, 2014
  • Presenter, “Statutory Update: Clean Water Act, Clean Air Act & CERCLA,” Oregon State Bar, October 24, 2014
  • Presenter, “Forest Products Clean Air Act Update,” FRA Western Regional Fall Association Meeting, October 15, 2014
  • Presenter, “DEQ to Change Air Rules,” Stoel Rives RDE Lunch Workshop Series, February 13, 2014
  • Presenter, “Joining a Nonprofit Board,” Young Nonprofit Professionals Network, August 8, 2013
  • Presenter, “Mill Management: A Day in the (Environmental) Life,” Oregon State University College of Forestry, Forest Products Management Development Course, April 29, 2013
  • Presenter, “New Boiler MACT Goes Final,” Stoel Rives RDE Lunch Workshop Series, January 24, 2013
  • Presenter, “What’s That Thang? Corporate Environmental Responsibility,” PNWIS Conference, A&WMA, November 7, 2012
  • Presenter, “Getting The Most from The Consultant/Attorney Team: Improv,” Multnomah Athletic Club, October 25, 2012
  • Author, “EPA’s Proposed ‘Standards of Performance for Greenhouse Gas Emissions for New Stationary Sources: Electric Utility Generating Units,’” Case Notes: Recent Environmental Cases and Rules, Oregon State Bar Environmental and Natural Resources Section, May 2012
  • Presenter, “Emerging Air Quality Requirements,” Northwest Pulp and Paper Association Annual Meeting, June 23, 2011
  • Presenter, “Getting the Most from the Consultant/Attorney Team,” Multnomah Athletic Club, May 20, 2011
  • Presenter, “Boiler MACT Definition Of Solid Waste: The Rules Are Here,” The Seminar Group, May 3, 2011
  • Presenter, “Environmental Law Update: The Recent Changes That You Need to Know About,” GOSH 2011, March 8, 2011
  • Presenter, “Boiler MACT/Definition of Solid Waste: The Rules are Here,” Stoel Rives RDE Lunch Workshop Series, March 3, 2011
  • Moderator, “Underground Injection Controls and Alternatives,” and “Dealing with the Media: What Do You Do When The Media Contacts You?” Northwest Environmental Conference, Portland, Oregon, December 6–7, 2010
  • Presenter, “Environmental Law Update: The Recent Changes that You Need to Know About,” Cascade Occupation Safety & Health Conference, March 9, 2010
  • Presenter, “(Underground Injection Control), Well What Is My Business Supposed to Do?” Stoel Rives RDE Lunch Workshop Series, February 17, 2010
  • Moderator, “Understanding Environmental Crimes: Practical Information for Your Business,” Northwest Environmental Conference, December 7, 2009
  • Presenter, “President Obama’s First 100 Days,” Stoel Rives RDE Lunch Workshop Series, May 7, 2009
  • Presenter, “Environmental Enforcement: 2008 Summary and 2009 Preview,” Stoel Rives RDE Lunch Workshop Series, February 19, 2009
  • Moderator, “Air Quality Basics” and “Our Energy Future: Challenges to Siting Energy Infrastructure Projects in the Northwest,” Northwest Environmental Conference, December 8–9, 2008
  • Presenter, “Air Litigation Update,” Air & Waste Management Association Webinar Conference, October 30, 2008
  • Presenter, “Environmental Litigation Update—EP-1 Air Pollution Policy and Regulations,” Air & Waste Management Association 2008 Annual Conference, June 25, 2008
  • Guest Lecturer, Clean Air Act Seminar, Lewis & Clark Law School, Fall 2007, 2009
  • Coauthor, “Emergency Release Notification Requirements: How Soon Is Soon Enough?” ABA Environmental Enforcement Crimes Committee Newsletter, Vol. 8, No. 2, February 2007
  • Editor, Environmental Law chapter, New York Construction Law Manual, 2d Ed., West 2006
  • Monthly columnist, The Naperville Sun, 2006

Related News & Publications

Expand to Read More + See Less -
Saved Pages

Use the arrows to arrange content.  Download pages as a .pdf file or share links via email..

{{ item.Title }} {{ item.AttorneyPosition }}, {{ item.AttorneyLocation }} , C. {{ item.AttorneyCell }} , P. {{ item.AttorneyPhone }} , F. {{ item.AttorneyFax }} {{ item.TypeText }} Remove
You have no pages saved
            {{ state | json }}