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OPINION: Despite Wet Weather, California Should Prepare For Drought Again

Despite recent rain and snow, California is back to dry conditions again after a very wet 2017. With about four weeks left in the normal wet season, the Sacramento Valley is at about 65 percent of average precipitation (less than one-third of last year’s precipitation). The southern Central Valley has less than 50 percent of average precipitation and Southern California is still drier. Snowpack is much less, at 37 percent statewide. Surface reservoirs, which almost all refilled and spilled in record-wet 2017, are now at 98 percent of average for this time of year, and will fall quickly as there is well-below-normal snowpack to melt.

Recycled Wastewater At Your Tap? It Could Be Soon In Arizona

Most Americans are familiar by now with the concept of recycled wastewater. We all may not be completely comfortable with the concept of reusing treated sewage, but most of us have at least heard about it, and in some communities we know that it helps parks and street landscaping thrive. A handful of communities practice what is known as indirect potable reuse, which means using highly refined treated wastewater to recharge groundwater or a reservoir. This water is processed again in a conventional drinking water treatment plant before being delivered to customers.

Why This Year’s Low Snowpack Doesn’t Indicate A Drought

Despite the fierce winter storm that brought an avalanche of snow to the Sierra Nevada last week, water officials say the state’s snowpack is far behind its desired level. Before the storm, comparisons were being made to record-breaking dry years. So why isn’t there more panic about a potential drought? The state’s reservoir levels and drinking water supply are in good shape, largely because last year was exceptionally wet, said Dave Rizzardo, of the California Department of Water Resources.

Treasure Island Is Sinking As Seas Are Rising, And So Are Other Bay Area Cities

If you imagine the San Francisco Bay as a bathtub, sea level rise means the bathwater is rising. A new study published today in Science Advances finds the tub is sinking too, and in some places, more than others. Where Bay Area cities have built on landfill or newer mud, that land is compacting, and sinking faster than other places. This subsidence is a problem for, among others, Foster City, Union City, San Rafael, and the land around San Francisco Airport.

Recycled Water From Sewers Coming To California Taps

Water that once coursed through city sewers may soon find new life coming out of your home faucet. New regulations approved Tuesday by the California State Water Resources Control Board allow treated recycled water to be added to reservoirs, the source of California municipal drinking water. The regulations specify the percentage of recycled water that can be added and how long it must reside there before being treated again at a surface water treatment facility and provided as drinking water, according to the Water Board.

Pressure Mounts On WaterFix Agencies

As the clock winds down on Gov. Jerry Brown’s time in office, pressure appears to be mounting on state agencies to move the California WaterFix project forward. The Metropolitan Water District of Southern California (MWD) surprised many during a Bay-Delta Special Committee meeting on Feb. 27 when it was disclosed that the agency was examining the opportunity to finance the $11 billion cost of  building the first of two tunnels in accordance with the Department of Water Resource’s (DWR) revised construction plan. 

OPINION: California’s Water Hole

Storms like the one that have doused arid California in recent days are cause for celebration, but also for better conservation. The Sierra Nevada mountains received nearly six feet of snow, which was especially welcome in a dry winter. Snowpack in the Sierras had measured a quarter of its historical average.

California Would Require Electricity To Be 100 Percent Renewable By 2045 If This Bill Passes

Electricity in California would all come from sources like wind and solar if a bill in the Assembly becomes law. Senate Bill 100 starts by boosting the state’s renewable electricity requirement to 60 percent by 2030. Democratic state Sen. Nancy Skinner says the bill also sets a goal of getting 100 percent of electricity from non-carbon emitting sources by 2045. “If we pull that off, then we will be the largest users of energy in the world with such a goal,” said Skinner, who co-authored the bill.

Water Reuse Approved By California Water Board

California’s water regulator paved the way for the increased use of recycled water on the same day it instituted new pesticide thresholds for a river on the central coast. The State Water Resources Control Board unanimously passed regulations that hold local water agencies accountable for the amount of pesticides that flow from agricultural operations into the Salinas River. “I understand the benefits of pyrethroid pesticide use as it makes food production possible at this time,” said water control board member Steven Moore.

Scientists Engineer Crops To Conserve Water, Resist Drought

Agriculture already monopolizes 90 percent of global freshwater—yet production still needs to dramatically increase to feed and fuel this century’s growing population. For the first time, scientists have improved how a crop uses water by 25 percent without compromising yield by altering the expression of one gene that is found in all plants, as reported in Nature Communications.