More than 40,000 miles of California’s rivers and streams are currently threatened by pollution, according to a list of impaired waterways submitted by the state to the U.S. Environmental Protection Agency. Monitoring of rivers, lakes and coastal waters in California continues to show harmful pollutant levels, based on updates to the list from three of the state’s nine regional Water Quality Control Boards — North Coast, Lahontan and Colorado River regions.California has some of the most magnificent rivers, lakes and coastal waters in the country. Common impairments in lakes are due to mercury and other toxic metals in fish. High temperatures, sediment and
