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In the North Bay fire zone, early tests show no post-fire water contamination

Mary Callahan, THE PRESS DEMOCRAT
Samples taken from key Russian River tributaries downstream of the massive Tubbs fire scar have so far tested within the expected range for a suite of 30 pollutants and other traits that might betray contamination related to ash, burned wreckage and recent firefighting efforts, according to North Coast water regulators.
The results are just the earliest in the long-term monitoring planned for the 1,500-square-mile river watershed. Scientists want to ensure that critical water supply and wildlife habitat aren’t exposed to heavy metals, excess sediment and other pollutants potentially leached from thousands of burned structures, vehicles and unknown materials incinerated in the October firestorm.
Staff with the North Coast Regional Water Quality Control Board also caution that the results reflect a limited number of test sites — three from below the burn zone and one from above.
But the outcome of three testing rounds conducted last month nonetheless contributes to faith in the success of a multiagency, all-hands-on-deck effort to deploy more than 30 miles of straw erosion-control wattles and tens of thousands of gravel bags to filter runoff from winter rains and direct it away from storm drains and streams, Senior Environmental Scientist Katharine Carter said.
Read more at: In the North Bay fire zone, early tests show no post-fire water contamination

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Napa, Sonoma vineyards to have new watershed regulations

Cynthia Sweeney, NORTH BAY BUSINESS JOURNAL

SF Bay Water Board Napa River and Sonoma Creek Vineyard Program

Vineyard owners in the Napa River and Sonoma Creek watersheds are facing new regulations after a decision by the San Francisco Bay Regional Water Quality Control Board meeting July 12.
The decision is the result of a lengthy environmental-impact report years in the making that addresses protection of species and habitat in the area.
The requirements are aimed at “regulating discharges from vineyard properties to achieve discharge performance standards for sediment and storm runoff and control pesticide and nutrient discharges,” the regulations said.
The action also aims to protect “habitat for federally listed steelhead populations, locally rare Chinook salmon populations and exceptionally diverse native fish assemblages.”
There was no timeline given as to when the adoption would go into affect, and specifics on reporting to the regional board were not announced.
The watersheds contain an estimated 162,000 acres of vineyard properties, with 59,000 acres planted in grapes, from which there are or may be discharges of sediment and concentrated storm runoff that affect water quality.
Read more at: Napa, Sonoma vineyards face new watershed regulations | The North Bay Business Journal