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Along with the rest of California's lakes and reservoirs, Lake Jennings is currently closed to fishing. Photo: Lake Jennings

Reservoirs, Lakes Remain Closed to Fishing Due to COVID-19 Pandemic

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Although San Diego County’s lakes and reservoirs remain closed to fishing and other recreational activities for safety reasons due to the coronavirus pandemic, staff and volunteers continue to work. Crews are maintaining facilities, providing security, and sharing photos of wildlife and native blooms enjoying the arrival of spring.

Popular overnight campsites remain open at Santee Lakes, operated by the Padre Dam Municipal Water District. Photo: Padre Dam MWD

Popular overnight campsites remain open at Santee Lakes, operated by the Padre Dam Municipal Water District. Photo: Padre Dam Municipal Water District

Popular overnight campsites remain open at Santee Lakes, owned and operated by the Padre Dam Municipal Water District.

“Camper well-being is important to us and Santee Lakes didn’t want to displace people,” said Melissa McChesney, Padre Dam communications manager. She said that includes long-term campers who spent winter at the lake.

“It is important to note that Santee Lakes is not promoting recreation at this time, and the day use section of the park is closed,” said McChesney. “The park is able to provide a safe alternative to any RVers currently on the road in California because we have full electric, water, sewer and WiFi at each site. Santee Lakes is currently only taking reservations for self-contained RVs.”

Campers can reserve space for a maximum of six months. McChesney said campers should still shelter in place and practice physical distancing at the 300 campsites and 10 cabins.

At Santee Lakes, campers can also enjoy spring birdwatching. Two hundred and thirty different bird species have been spotted at the lake.

Nature takes flight at Lake Jennings

Two of the three resident bald eagles at Lake Jennings. Photo: Lake Jennings

At Lake Jennings, Recreation Manager Kira Haley says eight volunteers continue to live and work from their campground homes in recreational vehicles and campers. She said their days remain “pretty typical” even though they see more wildlife and not people.

“Our volunteers handle emerging maintenance, take calls from the public, and provide security,” said Haley. “They’re happy to be there, not having interaction with people during this time.”

Although new camping reservations are closed, Haley said campers currently at the Lake Jennings campgrounds were allowed to finish their stay. She said only one person, from out of state, will be the only camper at the entire park through the end of April.

A wood duck and her ducklings swimming across Santee Lakes. Photo: Santee Lakes/Facebook

Haley and her volunteers are sharing photos of the active wildlife and plant growth on social media. Currently, there are three bald eagles at the lake.

On the Lake Jennings Facebook page, Haley noted with a photo of a bald eagle in flight, “Lake Jennings Social Distancing: Always keep an eagle’s wingspan between you and others.” According to National Geographic, a bald eagle’s typical wingspan measures from six to eight feet – the recommended social distancing minimum.

According to National Geographic, a bald eagle’s typical wingspan measures from six to eight feet – the recommended social distancing minimum. Photo: Lake Jennings/Facebook

City of San Diego lakes and reservoirs closed until further notice

Paddleboarding-Lake Hodges-coronavirus-845x450

Paddleboarders will have to wait to get on Lake Hodges. The City of San Diego has closed all reservoirs due to the coronavirus pandemic. Photo: City of San Diego

The City of San Diego’s reservoirs and lakes are closed due to the coronavirus pandemic. The city closed the reservoirs to the public on March 18 to protect the public and minimize the spread of the COVID-19 virus. The nine water supply storage reservoirs are operated by the City’s Public Utilities Department.

Anza-Borrego Desert Research Center-Sicco Rood-March-2020-WNN water supply

Water Supply Diversification Overcomes Dry Winter

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No ‘March Miracle’ for snow and rain in California, but the San Diego County Water Authority has diversified water supply sources to weather the boom-and-bust cycle of California winters.

March brought abundant precipitation throughout California, but not enough to offset a dry February. Most large urban water agencies in the state maintain a reliable water supply in wet and dry years.

“California’s climate variability is why a water resilience portfolio is needed to provide a safe and plentiful water supply,” said Goldy Herbon, Water Authority senior water resources specialist. “Whether a wet or dry year, the Water Authority and its 24 member agencies have successfully diversified water sources to ensure a reliable supply to meet the needs of the region’s 3.3 million people.”

The supply sources include water from the Claude “Bud” Lewis Carlsbad Desalination Plant, where ten workers volunteered to live on-site to keep the water flowing during the coronavirus pandemic.

Lindbergh Field has received 9.76 inches of rain – or 108% of normal – from October 1, 2019 – April 2, 2020. Many areas in the San Diego region received snow in March, including the Anza-Borrego Desert State Park.

Even with a lackluster winter, the state’s six largest reservoirs hold between 82% and 125% of their historical averages for April 1, according to the California Department of Water Resources. Lake Shasta is 98% of its historical average and is at 79% of capacity.

Major California Reservoirs-April 1 2020-WNN-CA DWR graphic

The Department of Water Resources April 1 conducted the fourth manual snow survey of 2020 at Phillips Station near Lake Tahoe. The manual survey recorded 43.5 inches of snow depth and a snow water equivalent (SWE) of 16.5 inches, which is 66% of the April average for this location.

The SWE measures the amount of water contained in the snowpack, which provides a more accurate forecast of spring runoff. Measurements from the 130 electronic snow sensors, scattered throughout the state, indicate that the statewide snowpack’s water equivalent is 15.2 inches, or 53% of the April average.

Sierra Nevada Snowpack Comparison-NASA satellite image-WNN-April 2020

The natural-color satellite images above, acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on NASA’s Terra and Aqua satellites, show the area covered by snow in March 2020 compared to March 2017 (a record high year). Graphic: NASA/NASA JPL

“While today’s survey results show our snowpack is better off than it was just last month, they still underscore the need for widespread, wise use of our water supplies,” said DWR Director Karla Nemeth. “California’s climate continues to show extreme unpredictability, and February’s record dryness is a clear example of the extremes associated with climate change.”

On average, the snowpack supplies about 30% of California’s water needs as it melts in the spring and early summer, the state agency reported in news release.

Water Companies Close Down Reservoirs to Combat Covid-19 Outbreak

/in , /by /WWTby Alec Peachey

Water companies are asking people to stay at home for the good of their health rather than visit popular sites like reservoirs during the coronavirus outbreak.

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Groundwater Aquifers Can Expect A Boost From March Rains

/in , , /by /Fronterasby Bret Jaspers

March rain has left Salt River Project reservoirs as full as they’ve been in a decade. The company is discharging water to make room for the runoff, providing a boost to the underlying aquifers.

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California’s Driest February and Coming Drought?

/in , , /by /California WaterBlog (UC Davis Center for Watershed Sciences)by Jay Lund

February has been amazingly dry in California, if anyone hasn’t noticed.  No precipitation at all in February, a dry forecast, about 51% of seasonal Sacramento Valley precipitation (a bit less for the San Joaquin and Tulare basins), and only about half (45-57%) of normal snowpack for this time of year.  Unless March is wet, this dry year seems likely to advance the onset of the fire season and threaten forest health this year.

Reservoir levels are still not bad for this time of year.  Many are fuller than average, perhaps reflecting some snowpack loss.  Some other reservoirs are a bit low.  This is inherent in the first year of a drought, low precipitation and snowpack, but mostly ok reservoirs.

Groundwater has recovered somewhat from the previous 2012-2016 drought, better in the north, but less in the state’s more overdraft-prone areas in the San Joaquin and Tulare basins.

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Drought In California Seems Inevitable. But Experts Say Don’t Panic

/in , , /by /Capital Public Radioby David Ezra Romero

Some communities in California just experienced the driest February ever, and there’s around an 80 percent chance the state will enter a full-blown drought this year.

If that happens, it could be the third-driest year in over a century, according to modeling by the Center for Watershed Sciences at UC Davis.

But even though around a quarter of California is undergoing moderate drought conditions experts say it’s too early to panic — they say a second year of drought is where things get dicey.

“The first year of a drought is really mostly a wake-up call,” said Jay Lund, the center’s director. “It will be prudent, if this turns out to be a dry year, for us to prepare for it to be a longer drought.”

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Rising Temperatures are Taking a Worsening Toll on the Colorado River, Study Finds

/in , , /by /azcentral.by Ian James

Scientists have documented how climate change is sapping the Colorado River, and new research shows the river is so sensitive to warming that it could lose about one-fourth of its flow by 2050 as temperatures continue to climb. Scientists with the U.S. Geological Survey found that the loss of snowpack due to higher temperatures plays a major role in driving the trend of the river’s dwindling flow. They estimated that warmer temperatures were behind about half of the 16% decline in the river’s flow during the stretch of drought years from 2000-2017, a drop that has forced Western states to adopt plans to boost the Colorado’s water-starved reservoirs.

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Lake Jennings Hosts Kids Fishing Day

/in , , /by /Water News Network

Hundreds of pounds of rainbow trout were biting for participants on Saturday during the sixth annual Kids Fishing Day at Lake Jennings in Lakeside.

The event started in 2015 has been an annual highlight ever since its inception. Kids ages 9 and under fished for free all day Saturday at the Kids Pond, which is a 20-by 20-foot cube within the lake.

Recreation Manager Kira Haley says Lake Jennings was stocked with 2,000 pounds rainbow trout from Wright’s Rainbows in Thatcher, Idaho the week of February 3. Eight hundred pounds went directly into the Kids Pond, which is then attached to the floating accessible fishing dock.

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Two of the many happy Kids Fishing Day participants show off their catches. Photo: Lake Jennings

Lake Jennings Hosts Kids Fishing Day

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Hundreds of pounds of rainbow trout were biting for participants on Saturday during the sixth annual Kids Fishing Day at Lake Jennings in Lakeside.

The event started in 2015 has been an annual highlight ever since its inception. Kids ages 9 and under fished for free all day Saturday at the Kids Pond, which is a 20-by 20-foot cube within the lake.

Recreation Manager Kira Haley says Lake Jennings was stocked with 2,000 pounds rainbow trout from Wright’s Rainbows in Thatcher, Idaho the week of February 3. Eight hundred pounds went directly into the Kids Pond, which is then attached to the floating accessible fishing dock.

“Kids don’t remember their best day in front of the television, but they remember the first day they caught a fish with a proud parent cheering them on,” said Haley.

Two hundred kids got to catch and take home a trout. Haley says kids as young as two years old participated with a little adult help, including volunteers from the Lakeside Optimist Club, who helped prepare the fishing rods for the kids. Bait choices included nightcrawlers, cheese, white power worms, and mealworms.

Lake Jennings home to trout, catfish, bass, bluegill and sunfish

Getting your hands a little slimy is part of fun at Kids Fishing Day at Lake Jennings. Photo: Lake Jennings

Getting your hands a little slimy is part of fun at Kids Fishing Day at Lake Jennings. Photo: Lake Jennings

Operated by the Helix Water District, Lake Jennings stocks 20,000 pounds of trout annually on a biweekly schedule between November and April when water temperatures are cool enough for trout to survive and 10,000 pounds of catfish in the warmer summer months.

In addition, large-mouth bass, red-ear sunfish and bluegill, as well as channel and blue catfish live in Lake Jennings. Sign up for the Lake Jennings Fish Report online to see what fish are biting.

Recreational fishing is the second most popular leisure activity in the U.S., second only to running. While the majority of avid fishermen and women are over 45, approximately 11.25 million youth ages six to 17 participate in fishing in the U.S. annually

Crews loaded the 130,000 pound stainless steel cone onto a barge and finished assembling it above water before lowering it into the reservoir. Image: Water Authority

New Oxygenation System to Improve Reservoir Water Quality

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The City of San Diego’s Public Utilities Department last week took a major step toward completing an innovative project to improve water quality in Lake Hodges. A newly installed oxygenation system, designed by city engineers, will introduce highly oxygenated water to the bottom of the reservoir to reduce the accumulation of excess nutrients and harmful algae growth.

The increase of nutrients and algae in the water has been caused by human activities in the watershed upstream of the reservoir, including residential and commercial development, agriculture, and land clearing. Degraded water quality can restrict the ability to move water in and out of the reservoir.

“The ‘Speece cone’ is a fairly unique method for adding oxygen to a reservoir – there are only a few of them in the world,” said Jeff Pasek, project manager at the City of San Diego Public Utilities Department. “This project derived from a planning study that was done about five years ago, which identified oxygenation using the ‘Speece cone’ as being the most cost-effective way of addressing the water quality problems in Hodges.”

Last week, the 130,000 pound cone – named after the inventor of the technology, Richard Speece – was lowered eighty feet to the bottom of the reservoir.

Streamlined operation for maximum efficiency

The precisely coordinated operation involved lifting the 20-foot tall stainless steel cone with a large crane, while simultaneously driving a barge out from underneath. Once the cone was lowered into the water, divers headed to the bottom of the reservoir to unhook the cone from the crane, check to make sure it settled in the correct spot, and fasten it down.

In order to build a solid foundation underwater, crews excavated approximately 11 feet of silt from the bottom of the reservoir and constructed a concrete base. Before submerging the cone, crews installed and tested a pump that will move water through the cone. A large diffuser pipe was then lowered and connected to the cone by divers. The diffuser will distribute the oxygen-rich water throughout the reservoir.

Now underwater, the cone will distribute oxygen-rich water throughout the reservoir to reduce the accumulation of excess nutrients and prevent harmful algae growth. Image: Water Authority

Now underwater, the cone will distribute oxygen-rich water throughout the reservoir to reduce the accumulation of excess nutrients and prevent harmful algae growth. Photo: Water Authority

Local and regional benefits at Hodges Reservoir

Hodges Reservoir is owned and operated by the City of San Diego, and it serves the San Dieguito Water District and the Santa Fe Irrigation District. It is connected to the San Diego County Water Authority’s Olivenhain Reservoir as part of the Emergency & Carryover Storage Project, which is designed to ensure regional water reliability in case of emergencies or if the region is cut off from imported water supplies.

“There are multiple benefits to this project – first and foremost being the water quality improvements for Hodges Reservoir,” said Goldamer Herbon, a senior water resources specialist at the Water Authority. “Ancillary benefits include operational flexibility for regional supply benefits and preventing the accumulation of mercury, which can be harmful to people and wildlife that eat fish from the reservoir.”

The California State Department of Water Resources awarded the City of San Diego a $3.4 million grant funded by the San Diego Integrated Regional Water Management program to complete the oxygenation project, which began in February 2019.