California Water Views

On September 7, 2022, California became the first government in the world to require microplastics testing for drinking water, an emerging contaminant that is found throughout the environment. The State Water Resources Control Board (State Water Board) approved a policy handbook that details how it will implement a four-year plan, including testing logistics as well as how it will select the public agencies that will be required to test.

Microplastics represent an emerging contaminant of concern for which there are still a number of unanswered questions. As the policy handbook ...

On June 15, 2022, the U.S Environmental Protection Agency (EPA) announced new health advisories for four per- and polyfluoroalkyl substances (PFAS). The health advisories significantly lowered the level considered safe to consume for two PFAS and set limits for two new PFAS. At the same time, EPA announced it was making $1 billion available in grant funding to help communities address PFAS contamination.

PFAS have been dubbed “forever chemicals” because they tend to linger in the environment and humans rather than naturally breaking down. There are dozens of different types ...

Last week, the Ocean Protection Council adopted California’s Statewide Microplastics Strategy. The strategy is the first of its kind in the nation, focusing on outlining steps to address microplastic pollution, an emerging contaminant of concern.

Microplastics are defined in California as plastics that are between one nanometer and five millimeters in size. Microplastics have long been a concern for marine life, but recently there has been an increase in concern about the impacts of ingesting microplastics on humans. California has led the nation in developing strategies to ...

This week, on June 16, the California State Water Resources Control Board (“State Water Board”) unanimously adopted a definition for microplastics, making California the first state to adopt a definition specifically applied to drinking water (footnotes omitted):

‘Microplastics in Drinking Water’ are defined as solid polymeric materials to which chemical additives or other substances may have been added, which are particles which have at least three dimensions that are greater than 1nm and less than 5,000 micrometers (µm). Polymers that are derived in nature that have not been chemically modified (other than by hydrolysis) are excluded.

The final definition is much the same as the proposed version that was issued in March 2020 for public comment, key differences being that ...

The California State Water Resources Control Board (“State Water Board”) recently issued a draft Definition of Microplastics in Drinking Water and an accompanying staff report. The State Water Board will host a video/teleconference workshop on the draft definition on April 7, 2020 and written comments will be accepted until April 24, 2020. Here is the draft definition ...