WEEKLY DIGEST for December 31st – January 5th

A list of posts published on Maven’s Notebook this week …

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This week’s featured articles …

Earthquake Resilience of Southern California’s Water Distribution Systems

All the major water infrastructure bringing in water to Southern California cross the San Andreas fault at least once, sometimes multiple times.  What would happen in the event of an earthquake?  UCLA’s Dr. Jon Stewart (and others) have been conducting research to find out.

California is earthquake country, renowned for being one of the most seismically active regions in the world. There are more than 300 faults criss-crossing the state that we know about, and an untold number we know nothing about.  Every year, there are more than 10,000 quakes in Southern California, most too small to be felt.  The USGS says there is a 99.7% chance a magnitude 6.7 quake or larger will strike in the next 30 years.

California relies on a network of dams and aqueducts to store and transport water throughout the state. Southern California, in particular, relies on this infrastructure for 60% of its water, receiving imported water from the Owens Valleythe Colorado River, and the Bay-Delta Region.  Much of the state’s infrastructure crosses these faults.  How will our water infrastructure fare when the big one hits?

Dr. Jonathan P. Stewart is a Professor and Chair of the Civil and Environmental Engineering Department at the University of California-Los Angeles, specializing in geotechnical engineering, earthquake engineering, and engineering seismology.  In this presentation, Dr. Stewart defines the meaning of resilience as applied to water systems, describes the seismic threats to California’s water systems and gives his thoughts on critical system components with and without suitable resilience.

Click here to read this article.

CA WATER COMMISSION: Update on Sustainable Groundwater Management Implementation

Since the passage of the Sustainable Groundwater Management Act (SGMA) in September of 2014, the Department of Water Resources (DWR) has been working to fulfill its statutory obligations under the legislation.  With the overwhelmingly successful formation of Groundwater Sustainability Agencies (GSAs) this summer, the focus of the Department now turns to the development and adoption of Groundwater Sustainability Plans (GSPs).  At the December meeting of the California Water Commission, DWR staff reported on their implementation efforts to date.

Taryn Ravazzini, Deputy Director for DWR and Executive Sponsor for the Department’s Sustainable Groundwater Management Program began the presentation with some opening remarks.

The Department has a unique role when it comes to SGMA implementation because not only are we required to review these plans that are coming before us, which is a regulatory role from developing those regulations, but then we also have a very robust assistance role in technical, financial, and planning assistance,” she said.  “This is really where the Department has its strength in working at the local and regional levels to really help these GSAs pull together what we hope to be adequate plans for sustainable groundwater management.”

Click here to read this article.

In water news this week from around the web …

WEEKEND DAILY DIGEST: In California water news this weekend, Trump considers sending more water to California farmers; Relief in sight from California’s persistent dry heat; Oroville series part five: Dredging rivers may cause more damage; Unfiltered fervor: The rush to get off the water grid; and more …  READ IT HERE:  Weekend Daily Digest

MONDAY:  Happy New Year!  Here’s a pretty picture.

TUESDAY:  California’s new water boss: States must set own course on resources; Impacts, lessons from the Oroville spillway crisis; More cannabis regulation likely in 2018; Central Valley farmers fight fears of drought as long dry spell stretches into the New Year; ‘Strange season’: Is it really winter?; Showers, higher humidity on the way for California; and more …  READ IT HERE:  Tuesday’s Daily Digest

WEDNESDAY: Big unknowns: What legal marijuana means for water in Western states; As fish disappear, Trump Administration seeks to pump more water south; Interior Secretary nixes Klamath water agreement; Tribes, upper basin irrigators react; First significant rain since Thanksgiving weekend expected in California this week; ‘Unimpressive’: Forecaster says this week’s storms won’t turn around water, snow shortage; California wildfires demonstrate breadth of water quality threat; Parts of California, West may never look the same after wildfires; and more …  READ IT HERE:  Wednesday’s Daily Digest

THURSDAY: Sparse Sierra snowpack has officials worried about a long, dry summer; Snow measures just 3% of average in first snow survey; It’s too soon to worry about drought, despite dry winter, officials say; Sierra snow season bogged down by warm storms, dry December; A deep dive into California’s recurring drought problem; New technology that could help avert a toxicity crisis at the Salton Sea; Projects battling for Prop 1 funding; Legislation would impose state tax on water bills; New partnership will accelerate much needed work on California’s national forests; What is the ‘raw water’ trend?  It could kill you, experts say; and more …  READ IT HERE:  Thursday’s Daily Digest

FRIDAY:  Hopes for Delta smelt rebound dashed by record-low survey; Report: Systemic failures caused crisis at Oroville Dam; DWR ignores local advice on Oroville Wildlife Area rock harvest; Soaking storm may end Southern California wildfire season next week; New offshore drilling proposed off California coast by Trump administration; What not to ignore about water infrastructure; and more …  READ IT HERE:  Friday’s Daily Digest

News worth noting this week …

Weekly features …

Announcements this week …

 

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