Protecting & Conserving California's Water

TCP in California's Drinking Water

Because pesticides are meant to kill living organisms, they are by their nature, toxic. However one chemical — 1,2,3-TCP, or Trichloropropane — was particularly toxic to humans and persistent in the environment.

Perchlorate in California's Drinking Water

California is one of only two states that have set enforceable drinking water standards for the chemical perchlorate in drinking water.

woman drinking water / photo: istock pablocalvog

How Drinking Water Standards are Created in California

The U.S. Environmental Protection Agency establishes federal standards for drinking water contaminants that each state must enforce.

Keeping Drugs Out of Our Waterways: Safe Drug Disposal Program

Clean Water has joined with local government, wastewater professionals, senior citizen advocates, and those concerned with drug abuse to stop unused or out of date drugs from getting into the environment or into the hands of those who will misuse them.

From We All Live Downstream

Dripping spiggot
March 27, 2020

With all that’s happening right now, it can be difficult to pay attention to  anything other than the news of the day. I’m focused on groundwater; how we use it – and use too much; how we protect it from pollution – or don’t; and how we can ensure that it’s available when we need it. And even on a day when we’re not focused on a pandemic, groundwater can be easy to forgot about.

October 10, 2017

Those of you reading the New York Times will have seen the recent story on spiking Fentanyl deaths across America.

America’s opioid epidemic is drawing public attention to a less-considered side effect of mushrooming dependence on prescription medications: water pollution by pharmaceuticals. And that’s where we at Clean Water Action come in.

July 19, 2017

Yesterday, the State Water Resources Control Board voted to create a new legal limit on 1,2,3-Trichloroproane (TCP), a man-made, carcinogenic drinking water contaminant found across California. This is the culmination of years of work from Clean Water Action members like you, holding Shell Oil and Dow Chemical accountable for their failure to put public health above their profits, when they first learned of the dangers of TCP.

Now comes the hard work as water agencies work to comply with the new rule.