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.
Because of recent heavy rainfall, the city of San Diego Saturday began releasing about 923 million gallons of water from Hodges Reservoir into the San Dieguito River, which may eventually lead to the ocean, city officials said.
The dam release began at about 11 a.m. Saturday and will continue for about seven days or until the reservoir elevation is near 295 feet, spokesperson José Ysea said.
For safety reasons, the California Division of Safety of Dams has determined that the water level at Hodges Reservoir should not exceed 295 feet, which is 20 feet below spillway elevation, Ysea said. This requires periodic water releases from Hodges Reservoir.
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 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.
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
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.
3/27/20 Coronavirus Updates from Lake Jennings 🐟 – https://t.co/MpaIpNa8ZG pic.twitter.com/LBv6S1x3ln
— Lake Jennings (@lake_jennings) March 27, 2020
It’s the only one of its kind in Southern California and no one will see it again for years.
“It’s a giant upside-down cone with some pipes,” said Jeff Pasek. “It’s a strange looking device.”
It’s a strange looking device called a Speece Cone that’s expected to improve the water quality at Hodges Reservoir near Escondido.
“It’s not going to be seen again for a number of years because it’s 70 feet deep in the reservoir,” said Pasek, a Project Officer with the City of San Diego’s Public Utilities Department.
The $3.4 million project will constantly inject oxygen into the reservoir which will reduce the nutrients that algae feed on, Pasek said.
The city of San Diego’s Hodges Reservoir will officially reopen to the public three days a week beginning on Wednesday, Feb. 5, allowing access for a variety of activities, including boating, fishing, hiking and picnicking. Hodges is normally closed November through January.
Hodges will be open Wednesdays, Saturdays, and Sundays from sunrise to sunset. It will also be open on Memorial Day, Independence Day and Labor Day holidays.
It’s a tough gig being a western grebe during this water bird’s courtship season. To get noticed these birds must literally walk on water.
This elaborate courtship ritual, known as rushing, is now happening at Lake Hodges near Escondido where huge numbers of Clark’s and western grebes flock during the winter and spring breeding season.
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 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.
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. Photo: Water Authority
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.
The Santa Fe Irrigation District is moving forward with a proposed three-year rate plan that would raise total revenue for the district by 3 percent per year over the next three years, beginning early next year, through rate increases and changes in the district’s rate structure.
The district provides drinking and irrigation water to about 20,000 residents in Rancho Santa Fe, Solana Beach and Fairbanks Ranch. While the overall impact to the district’s bottom line will be a 3 percent revenue increase each year, the impact on individual customers’ bimonthly bills will vary based on the amount of water they use and the size of their water meter.
The city of San Diego may release water from Lake Hodges reservoir into San Dieguito River in coming months if heavy rain raises the water level above the maximum permitted.
The Water News Network is San Diego County’s source for water news and information.
