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Gov. Jerry Brown waived some permitting and review requirements Thursday for Oroville Dam as California rushes to repair a main spillway that partially washed away under heavy winter runoff. Brown signed an executive order directing state agencies to make repairs at the dam, the nation’s tallest, a priority. The order waives some of the environmental reviews and other requirements that could slow the push to have the concrete spillway operational by November, when the next rainy season starts.

State officials said Thursday that they hope to sign a contract for reconstruction of the heavily damaged Lake Oroville spillway by April 17. “We’re working very fast,” said Bill Croyle, acting director of the Department of Water Resources, which is under intense pressure to get the spillway in shape before the start of next winter’s rainy season. Although Croyle said the department has to conduct in nine months design and construction work that would normally take several years to complete, he expressed confidence that it was possible.

Graphene-oxide membranes have attracted considerable attention as promising candidates for new filtration technologies. Now the much sought-after development of making membranes capable of sieving common salts has been achieved. New research demonstrates the real-world potential of providing clean drinking water for millions of people who struggle to access adequate clean water sources. The new findings from a group of scientists at The University of Manchester were published in the journal Nature Nanotechnology. Previously graphene-oxide membranes have shown exciting potential for gas separation and water filtration.

The State Water Project is undoubtedly one of California’s most important infrastructure projects. It is one of the major water supplies for more than 25 million residents and irrigates up to 750,000 acres of farmland. But as it reaches its 50th birthday huge repair and safety costs are coming due. But is anyone paying attention?

This winter, record-breaking rainfall brought California’s long-lived drought closer to its final hour. However, it also raised the probability of large wildfires this summer, particularly those fueled by tall grasses that are thriving now but will start drying out soon, fire officials say. The potential for large fires “is expected to remain near normal through the spring, but once fine fuels dry out, there will likely be a spike in grass fire activity,” according to a report by the National Interagency Fire Center.