The 2021 California drought is as bad if not worse as the one in 2014, which endured for five long, dry years. As of Friday, 33 percent is in a state of “exceptional drought,” the most severe drought category given by the federal U.S. Drought Monitor.
San Diego residents and businesses could see their sewage rates rise four years in a row, starting with a 5% hike in January 2022, under a package of proposed water and sewage rate increases that the City Council’s budget committee send to the full council Wednesday.
The council will hold hearings and vote in September on a package that also includes a water rate increase from the San Diego County Water Authority.
The American Public Works Association and American Society of Civil Engineers recently presented the San Diego County Water Authority with four awards for construction projects that exemplified outstanding skill, dedication and collaboration from staff in many departments. All of the projects were underway or completed during the COVID-19 pandemic, and project teams navigated shutdowns, adapted to health and safety restrictions, and overcame many other uncertainties – in addition to typical challenges encountered during construction projects.
With extensive coordination between the Water Authority’s Asset Management, Operations, Maintenance, Right of Way, Water Resources, Engineering and Public Affairs teams, the First Aqueduct rehabilitation project was completed in early 2021. Significant work had not been performed on the First Aqueduct since the completion of Pipeline 1 in 1947 and Pipeline 2 in 1954. The Operations and Maintenance Teams worked closely with multiple member agencies to ensure no impacts to water deliveries over the extended shutdowns required to reline both Pipelines. These extended shutdowns allowed the Asset Management team to inspect 27 miles of pipeline along the aqueduct using innovative technologies – the first time this had been done in nearly 75 years.
“Since the project included more than 35 work sites spread out over 15 miles, many in rural areas of the county, we collaborated closely between different departments and member agencies to ensure that water service was not disrupted,” said Emma Ward-McNally, Water Authority engineer.
This new facility replaced the existing Vallecitos 2/Vista Irrigation 1 facility that was built in 1954. The Water Authority’s Operations and Maintenance team worked closely with the Engineering team to develop a construction sequence to build the new facility while maintaining water service to member agencies.
“A meticulous level of detail in the design process allowed for the project to be completed with minimal changes during construction,” said Jim Zhou, Water Authority senior engineer.
The new flow control facility replaced the San Diego 12 flow control facility. The Water Authority’s Right of Way team worked closely with the City of San Diego to acquire property rights for the facility. During construction, electrical and rotating technicians from Operations and Maintenance provided support to ensure that the facility was constructed correctly and that electrical relay protection was coordinated when connecting to San Diego Gas & Electric.
“The new facility repurposed an existing building at the site, but it was forward-looking – the project included the installation of a second pipe train for a future inline hydroelectric turbine,” said Aaron Trimm, Water Authority senior engineer.
After nearby Pipeline 4 was repaired in late 2019, the Asset Management team inspected Pipeline 5 in early 2020, and found it needed repairs as well. Multiple Water Authority departments and teams collaborated to launch the emergency repairs on Pipeline 5, despite the uncertainty of the growing pandemic. The Engineering Contracts group executed five contracts and task authorizations for design, construction and inspection within a few weeks to make the project happen, and the work was completed in April 2020.
“The project was a true team effort that required collaboration from multiple departments to ensure that the emergency repair could be completed even as the region was shutting down due to the pandemic,” said Colin Kemper, Water Authority senior engineer.
San Diego’s vulnerability to water shortages and drought is shrinking significantly because residents and businesses are using less water and city officials are boosting the local supply.
A new city analysis shows local water use dropped sharply from 81.5 billion gallons in 2007 to about 57 billion gallons in 2020, even though the city’s population has grown about 1 percent per year over that time.
After a series of meetings, the La Jolla View Reservoir project is taking a brief hiatus so the scope of what will be needed from La Jolla’s next reservoir can be determined. New findings are expected to be released in mid- to late April.
Representatives from three potable reuse projects under development in San Diego County will provide project updates during the inaugural “Sustainable Building Week San Diego” at 11 a.m. on Tuesday, April 13.
Hosted by the San Diego Green Building Council, Sustainable Building Week offers free virtual events from April 12 – 16 addressing sustainable practices and creating collaboration and networks among San Diego professionals involved with environmental stewardship and green building. All events are free and open to the public.
The San Diego County Water Authority hosts and moderates a panel titled “Potable Reuse: New Local Sources of High-Quality Drinking Water for San Diego County.” Potable reuse will provide a new source of safe, high-quality drinking water in San Diego County. Projects will create a local supply that is sustainable, drought-resilient, and benefits the environment. Additional sources of local water supply will also help prepare the region for future droughts and a changing climate.
Purified water from the East County Advanced Water Purification Project will undergo additional processing at Helix Water District’s R.M. Levy Water Treatment Plant after being be piped into the district’s Lake Jennings reservoir. Photo: Helix Water District
Attendees to the free virtual presentation will hear the latest updates on three San Diego County potable reuse projects currently under development. The presenters will describe how the potable reuse process purifies recycled water; reduces reliance on imported water; and is financially competitive and environmentally responsible.
Panelists include:
Cari Dale, Water Utilities Director, City of Oceanside, has been working towards meeting the Oceanside City Council’s goal of 50% local water supply development by the year 2030, a goal which will be achieved in part by the implementation of Pure Water Oceanside.
John Stufflebean, Assistant Director, Water Utilities Department, City of San Diego, currently the Assistant Director for the Pure Water and Technical Services Branch. Pure Water San Diego is the $5 billion project designed to generate nearly one-half of San Diego’s water demand from purified wastewater.
Kyle Swanson, Director of Advanced Water Purification, Padre Dam Municipal Water District, provides leadership and guidance in the design and implementation of the East County Advanced Water Purification Project. He has over 20 years of experience in water-related industries and is a licensed distribution and treatment operator and certified public manager.
Moderating the program is Lesley Dobalian, Principal Water Resources Specialist for the San Diego County Water Authority.
Registration to attend the program is free. Attendees can RSVP and receive a link for the presentation on the SDGBC Sustainable Building Week website.
The City of San Diego Public Utilities Department conducts regular surveys of its watersheds to monitor and maintain high water quality within those watersheds. The City recently released its 2020 Watershed Sanitary Survey. Conducted and issued every five years since 1996 as required by California law, the report identifies actual or potential causes of local source water contamination that might adversely affect the quality and treatability of City of San Diego water.
The City of San Diego Public Utilities Department conducts regular surveys of its watersheds to monitor and maintain high water quality within those watersheds.
The City recently released its 2020 Watershed Sanitary Survey. Conducted and issued every five years since 1996 as required by California law, the report identifies actual or potential causes of local source water contamination that might adversely affect the quality and treatability of City of San Diego water.
The updated information is used as a basis for future watershed management and planning efforts. City of San Diego tap water meets all state and federal drinking water health standards, the primary standards for treating and monitoring water.
“Development and other activities in our watersheds can have a profound influence on the quality of our water,” said Shauna Lorance, director of the City of San Diego Public Utilities Department. “The Watershed Sanitary Survey is important for identifying potential negative impacts and ways to better protect our watersheds.”
Everything that is on the land, whether a natural feature or a human activity like grazing cattle at this area near the Sutherland Reservoir, is part of the watershed. Photo: City of San Diego
A watershed is an area of land that drains water into a specific body of water. Everything that is on the land, whether a natural feature or a human activity, is part of the watershed. Many places San Diego County residents live, work, and play in are watershed areas.
There are 11 westward draining watersheds in San Diego County. Six are within the City of San Diego: San Dieguito River, Los Peñasquitos, Mission Bay and La Jolla, San Diego Bay, San Diego River, and Tijuana River.
The City of San Diego’s nine water supply reservoirs have a combined capacity of over 550,000 acre-feet and more than 900 square miles of watershed lands tributary to these reservoirs. Local runoff from watersheds captured in City reservoirs accounted for about 11% of total drinking water production from 2015-2020.
Six of San Diego County’s watershed regions lie within the City of San Diego boundaries. Map: City of San Diego
Reservoirs are critical components of the regional water supply system, as water is supplied to nearly two million people in the City of San Diego and neighboring communities. Protecting these water sources is vital to providing healthy and safe drinking water. The public can assist in preventing watershed damage through source reduction and preventing stormwater runoff.
The survey offers recommendations including continuing and expanding public awareness programs to help protect watershed, and implementing projects and programs to improve land management and water quality of source waters. All recommendations will be used for future watershed management and planning efforts.
The full 2020 Watershed Sanitary Survey, as well as past surveys, is available on the City’s website.
Editors Note: The City of San Diego is one of the San Diego County Water Authority’s 24 member agencies working collaboratively with the Water Authority to increase the value, reliability, and safety of water for ratepayers in San Diego County.
Sewer rates for San Diegans in single-family homes would increase nearly 19 percent next year and a total of 28 percent over the next four years under a new city proposal.
A San Diego program that aims to keep toxic sewer water out of the Pacific Ocean suffers from outdated methods and inadequate efforts to identify and inspect the business sites of industrial polluters, a new city audit says.
The 56-page audit says the program, which oversees industrial polluters served by San Diego and 12 other local sewer districts, needs to step up efforts to find polluters and modernize its inspection program.
