January 25, 2021

Volume XI, Number 25


January 22, 2021

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Bench Trial in Challenge to EPA’s Denial of Fluoride Petition Will Resume on June 15 and Is Available Online

The U.S. District Court for the Northern District of California began hearing oral arguments on June 8, 2020, in a case seeking a rulemaking under Section 6 of the Toxic Substances Control Act (TSCA) to prohibit the addition of fluoridation chemicals to drinking water supplies.  Food & Water Watch, Inc. v. EPA, Case No. 3:17-cv-02162-EMC.  The plaintiffs filed suit following the U.S. Environmental Protection Agency’s (EPA) denial of a TSCA Section 21 petition requesting it to exercise its Section 6 authority to prohibit the purposeful addition of fluoridation chemicals to U.S. water supplies. 

On June 12, 2020, Dr. Kathleen M. Thiessen testified as the final witness for the plaintiffs’ case-in-chief regarding risk analysis to determine a level of fluoride that does not produce adverse effects.  Thiessen also testified about a study that found correlation between fluoride intake and diminished thyroid productivity.  EPA’s first witness, Dr. Kristina Thayer, clarified the types of experimental biases and processes to vet bodies of evidence.  Earlier in the week, plaintiffs’ expert witnesses summarized the scientific literature on the adverse effects of fluoride on children’s development, including lowered IQ.  The experts have cited both animal and human studies.  EPA has questioned them at length regarding the discrepancies between male and female test subjects, especially in relation to prenatal fluoride exposure.  EPA has argued that the data presented by plaintiffs suffers from inconsistencies, flawed methodologies, and biases.  

The trial will resume on Monday, June 15, 2020.  Readers interested in watching the trial remotely can find scheduling and Zoom information here.

©2020 Bergeson & Campbell, P.C.National Law Review, Volume X, Number 164



About this Author

Lynn Bergeson, Campbell PC, Toxic Substances Control Act Attorney, federal insecticide lawyer, industrial biotechnology legal counsel, Food Drug Administration law
Managing Partner

Lynn L. Bergeson has earned an international reputation for her deep and expansive understanding of the Toxic Substances Control Act (TSCA), the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), European Union Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and especially how these regulatory programs pertain to nanotechnology, industrial biotechnology, synthetic biology, and other emerging transformative technologies. Her knowledge of and involvement in the policy process allows her to develop client-focused strategies whether...

Carla Hutto, Bergeson Campbell PC environmental law regulatory analyst,Toxic Substances Control Act law attorney
Regulatory Analyst

Since 1996, Carla Hutton has monitored, researched, and written about regulatory and legislative issues that may potentially affect Bergeson & Campbell, P.C. (B&C®) clients. She is responsible for creating a number of monthly and quarterly regulatory updates for B&C's clients, as well as other documents, such as chemical-specific global assessments of regulatory developments and trends. She authors memoranda for B&C clients on regulatory and legislative developments, providing information that is focused, timely and applicable to client...