If San Diego’s urban core were a human heart, then the 53rd Congressional District would be, geographically, its left ventricle. The political battle to represent its people is one between two liberals: former environmental justice advocate and San Diego City Council President Georgette Gómez and Sara Jacobs, the granddaughter of a Qualcomm co-founder who also chairs a childhood poverty organization called San Diego for Every Child.
It’s that time of the year in California, when water managers, climatologists and meteorologists look at the factors that determine what the winter will bring during Water Year 2020-21 (October 1, 2020 – September 30, 2021).
The National Oceanic and Atmospheric Administration recently said that La Niña conditions are present in the tropical Pacific, “with an approximately 85% chance of La Niña lasting through the winter.” Forecasters currently think this La Niña will be on the stronger side. For California, those conditions typically mean a drier winter, with increasingly dry conditions heading into 2021.
Fortunately for the San Diego region, any impacts from La Niña will be lessened because of the region’s development of a diversified water supply portfolio. Following a record number of acres burned from wildfires in 2020, La Niña would only increase fire danger.
La Niña continues in the tropical Pacific, with an approximately 85% chance of lasting through the winter, according to NOAA’s October 2020 La Niña update. Graphic: NOAA
But, whether the forecasts come to fruition, and what that means for California’s water supply, won’t be fully known until next spring. What we know now is that the water year that just ended (October 1, 2019 – September 30, 2020) varied across the state.
While Northern California was mostly dry, parts of Southern California experienced above average precipitation, according to the California Department of Water Resources. The agency said that the water year ended below average and pointed to the impact of climate change on the California’s water supply.
“California is experiencing the impacts of climate change with devastating wildfires, record temperatures, variability in precipitation, and a smaller snowpack,” said DWR Director Karla Nemeth. “We must continue to invest in our infrastructure to prepare the state to cope with more extreme weather for the state’s needs today and in the future.”
For Water Year 2020, a lack of precipitation resulted in a snowpack of just 50% of average on April 1, as measured by the California Cooperative Snow Survey Program, making it the 10th smallest snowpack in California since 1950, according to the DWR. California’s reservoirs received just a third of the water runoff from precipitation and snowmelt that they did during the same time period a year ago.
The wet season got off to a slow start, but a series of storms in late November and early December pushed 2019 precipitation to near or above average in central and southern California, according to Goldy Herbon, San Diego County Water Authority senior water resources specialist.
“The wet start didn’t last with dry conditions taking hold over most of the state in January, and then most of California experienced its driest February on record,” said Herbon.
While precipitation picked up in March 2020 for Southern California, statewide snowpack in mid-March was only 38% of average.
“The dry north/wet south precipitation pattern continued in March and April, with some locations in Southern California setting many daily precipitation records, San Diego included, as northern California precipitation levels remained below average,” said Herbon.
Despite the below average year in northern California, Herbon said statewide water supplies are in “excellent shape” thanks to above average precipitation the previous year and good reservoir storage. DWR reports that statewide reservoir storage through the end of September 2020 was projected to be 93% of average.
In the San Diego region, a wet spring boosted rainfall totals to near or above normal.
Regional precipitation during Water Year 2020. Graphic: National Weather Service San Diego
The San Diego County Water Authority will host an online public information session on Oct. 27 about economic considerations related to the proposed Regional Conveyance System. The virtual event will run from 10 a.m. to noon. To reserve a spot, email .
Meeting participants can:
In June of 2019, the Water Authority’s Board of Directors approved a study of the viability of a new regional conveyance system that would deliver water from the Colorado River to San Diego County and could provide multiple benefits across the Southwest.
The Phase A report, released in August 2020, found that building a new conveyance system to transport the region’s supplies from the Quantification Settlement Agreement is cost-competitive with other long-term strategies for meeting the region’s water needs.
At its August 2020 meeting, the Water Authority’s Board decided to continue the regional discussion about the study until November 19, at which time the Board is expected to decide whether to move ahead with Phase B of the study.
To learn more about the Regional Conveyance System Study or to read the executive summary and the full report, go to sdcwa.org/colorado-river-supplies-management.
A study of a new regional water conveyance system to deliver high-priority Colorado River supplies from the Imperial Valley shows three potential routes to move the water. Graphic: San Diego County Water Authority
Each of the potential conveyance routes would connect to the tail end of the All-American Canal where it meets the Westside Main Canal in the southwest corner of Imperial Valley.
After a brief interlude of mild temperatures Saturday, a warm-up is forecast to begin Sunday as upper-level high pressure builds into California, the National Weather Service said. High temperatures will climb by several degrees on Sunday.
Right now, it’s just a huge hole in the hills off Ortega Highway in San Juan Capistrano. Really huge, as it’s designed to hold 1.6 billion gallons of water.
It’s still dry as dirt, but promises to be a central component of future water supplies for the 165,000 people served by the Santa Margarita Water District. While the district currently imports 100% of its drinking water from the Colorado River and northern California, the new Trampas Canyon Reservoir is part of a plan to generate 30% of potable water supplies locally and to recycle more wastewater.
A team of scientists at Utah State University has developed a new tool to forecast drought and water flow in the Colorado River several years in advance. Although the river’s headwaters are in landlocked Wyoming and Colorado, water levels are linked to sea surface temperatures in parts of the Pacific and Atlantic oceans and the water’s long-term ocean memory.
Gov. Gavin Newsom signed an executive order Wednesday to protect nearly a third of California’s land and coastal waters in his latest effort to fight climate change that he has blamed for recent record-breaking wildfires.
Determining how climate change is affecting water supplies is difficult in a state like California that swings between floods and droughts, but a new study has found that climate models agree on key metrics that could help water managers in the Golden State.
The Fallbrook Public Utility District’s professional services contract for the Santa Margarita River Conjunctive Use Project has been amended.
If you’ve ever driven past pipes sticking out of the ground and wondered, “What is that thing?” you aren’t alone. While sitting at a red light one day, Olivenhain Municipal Water District Customer Services Manager John Carnegie glanced at a pipe and realized there were probably members of the public who are unaware of the role key water infrastructure objects in their neighborhoods play in delivering safe, reliable water.
“OMWD’s #WhatIsThatThing social media campaign is a great way to inform our customers who may be unaware of all the water and wastewater infrastructure around them,” said OMWD Board Secretary Bob Kephart. “It’s a fun way to create a better understanding of the district’s work.”
“It’s easy to forget the long path it takes to get safe and reliable water to your tap,” said OMWD Board President Ed Sprague. “Most people think only as far as their water meter, not to the infrastructure all around them.”
Posts feature a photo and description provided by Olivenhain field service technicians who are out in the district working on service assignments. District spokesman Arman Tarzi says they pass contributions along when they see something the public might want to know more about.
“Our field services staff are happy to contribute ideas and are strong partners in this project,” said Tarzi.
You may be on a walk, see some water flowing from a pipe like this, and ask yourself #WhatIsThatThing? No cause for concern! This is a vault relief doing its job, helping drain water from inside of an underground vault when it fills up due to run off and nuisance water. pic.twitter.com/aLqhyyChOQ
— Olivenhain MWD (@OMWD) August 28, 2020
Tarzi said the images help members of the community understand how infrastructure in their area functions.
“For example, you might see a pipe with water coming out of it, and think its leaking,” he said. “But it may be a vault relief doing its job properly, so the social media campaign can help relieve concerns while providing information in a fun way.”
Tarzi said as the public increasingly engages in outdoor activity during the COVID-19 pandemic, the public may be curious of all the infrastructure around them, which is maintained by OMWD’s essential employees.
“The #WhatIsThatThing creates an appreciation for everything OMWD does to build and maintain our water infrastructure,” said Kephart. “With these posts, we are showing that water infrastructure is everywhere and OMWD is always proactive in maintaining our system.”
#WhatIsThatThing? Inside this tan enclosure is a 2-inch Air Relief Valve that is installed on a distribution water main. The purpose of this valve is to release air pockets that collect at each high point of a fully pressured pipeline. Water infrastructure is all around you! pic.twitter.com/CtwlYxoMe3
— Olivenhain MWD (@OMWD) June 30, 2020
#WhatIsThatThing? Inside this tan enclosure is a 2-inch Air Relief Valve that is installed on the distribution water main. The purpose of this valve is to release air pockets that collect at each high point of a fully pressured pipeline. Water infrastructure is all around you!
Posts in the #WhatIsThatThing social media series began appearing on Olivenhain’s Facebook and Twitter accounts in June. The next posts are scheduled this week.
