Tag: water quality

BAY DELTA SCIENCE CONFERENCE: A Review of Water Quality Science in the Delta: Chemical contaminants and nutrients

Science Features

As part of its charge to review science activities that support adaptive management in the Delta, the Delta Independent Science Board (DISB) has completed a review of the scientific basis for assessing water quality in the Delta.  The review focused on chemical contaminants and nutrients and assessing how water quality information is being used in management decisions, especially for  supporting […]

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WEBINAR: Water Quality Concerns in Western Forests and Rangelands

Conferences and Seminars

Webinar looks at what is being done to reduce impacts the impacts of wildfires on water quality and ecosystem health Water quality is a concern for Western states because with the arid climate, there isn’t a lot of water and so the little bit of water there is needs to be protected.  Water quality – or the lack thereof – […]

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ANNOUNCEMENT: Public hearings on proposed withdrawal of certain water quality criteria applicable to California

ANNOUNCEMENTS

From the Central Valley Regional Water Quality Control Board: EPA is proposing to amend federal regulations to withdraw certain federal water quality criteria for lead, chlorodibromomethane, and dichlorobromomethane applicable to California. The state now has adopted certain criteria for these parameters. EPA approved the state’s site-specific criteria, which are less stringent than the federally promulgated criteria, because EPA determined that […]

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THIS JUST IN … California Fisheries Groups Sue State for Failure to Protect Impaired Waterways

Breaking News

From the Institute for Fisheries Resources: Today four commercial fisheries organizations filed a lawsuit accusing the California State Water Resources Control Board (the Water Board) of failing to fulfill their responsibility to protect clean water and public trust resources in the Bay Delta and Central Valley. At issue is the state’s failure to list long-suffering Delta waterways as impaired on […]

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THIS JUST IN … River Defenders File Lawsuit to Protect California’s Waterways

Breaking News

Suit seeks state compliance with the Clean Water Act and CEQA From the Earth Law Center: Today, a coalition of river defenders filed a lawsuit against the State Water Resources Control Board for its failure to meet key Clean Water Act and California Environmental Quality Act (CEQA) requirements intended to protect the ecological health of waterways. Lawyers for Clean Water […]

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CA WATER POLICY CONFERENCE: Salty buildup: The threat to California’s water

Best of the Notebook, Conferences and Seminars

Panel discusses the pervasive problem of salinity and irrigated agriculture, and what can be done about it Salinity is a slow-moving but critical problem.  It is most challenging in regions that have constrained drainage; it can be exacerbated when imported water brings salts into the basin; imported food and other raw materials can add to the problem.  If salts are […]

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DPR scientists tackling troubling urban pesticide runoff

News and Features

From the California Department of Pesticide Regulation: Agricultural pesticide runoff grabs headlines, but did you know that urban pesticide use can also pollute California creeks and rivers? Determining the extent of the pollution has been the focus of recent studies by scientists at the California Department of Pesticide Regulation (DPR). They’ve found several pesticides at levels toxic to aquatic invertebrates […]

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Delta nutrients: Sources, sinks, sags, soups, and sensors

Science Features

Delta Lead Scientist Cliff Dahm discusses sources and effects of nutrients in the Delta Increasing clarity of waters, the emergence of harmful algal blooms, the proliferation of aquatic water weeds, and altered food webs have brought the issue of nutrient dynamics to the forefront in the Delta. Nutrients, such as nitrogen (or ammonium) and phosphorus can be beneficial or detrimental […]

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How the San Francisco Bay Regional Monitoring Program integrates research and monitoring of mercury and methylmercury

Science Features

Dr. Jay Davis highlights studies to determine where the greatest potential exists to address methylmercury in the San Francisco Bay The Regional Monitoring Program (RMP) for the San Francisco Bay is a collaborative partnership between the San Francisco Estuary Institute, the Regional Water Quality Control Board, and the regulated discharger community to provide the scientific foundation to manage water quality […]

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Overview of mine remediation in the Bay-Delta Ecosystem

Science Features

California is making progress on remediating abandoned mine sites, says Carrie Austin, San Francisco Bay Regional Water Board The California Gold Rush, begun in 1849, brought rapid population growth, new technology, and economic growth to the state, propelling it to a center of the global imagination and making it the destination of hundreds of thousands of people practically overnight. Many […]

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