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Annual Leak Detection Program Gets Underway in Otay Water District

As part of its annual preventative maintenance program to safeguard its water supply and reduce water loss, the Otay Water District will conduct leak inspections of its pipeline system beginning January 30. Inspections are expected to continue until April 28.

If a leak is confirmed, then a repair is scheduled and completed within days of discovery and during normal working hours. Photo: Otay Water District Leak prevention

Annual Leak Detection Program Gets Underway in Otay Water District

As part of its annual preventative maintenance program to safeguard its water supply and reduce water loss, the Otay Water District will conduct leak inspections of its pipeline system beginning January 30. Inspections are expected to continue until April 28.  The District’s contractor, Utility Services Associates, will inspect approximately 171 miles of potable water mains in Spring Valley and Jamul, along with potable and recycled water mains in areas of Chula Vista.

Minor water leaks account for more than a trillion gallons of water wasted each year in homes across the United States. According to the EPA Fix-A-Week-Leak website, each average household with unaddressed leaks can account for 10,000 gallons of water loss every year, enough to wash 300 loads of laundry.

Since 2013, the proactive Leak Detection Program has identified 292 leaks that have been repaired by the District, resulting in an average annual savings of $54,000 per year from reduced water losses. Graphic: Otay Water District leak prevention

Since 2013, the proactive Leak Detection Program has identified 292 leaks that have been repaired by the District, resulting in an average annual savings of $54,000 per year from reduced water losses. Graphic: Otay Water District

For example, the EPA reports a leak just one-32nd of an inch in diameter (about the thickness of a dime) can waste 6,300 gallons of water per month.

Since 2013, the proactive Leak Detection Program has identified 292 leaks that have been repaired by the District, resulting in an average annual savings of $54,000 per year from reduced water losses.

“The Otay Water District conducts inspections annually in different communities we serve,” said Otay System Operations Manager Jake Vaclavek. “It is more critical than ever to insure we are not wasting water as we cope with our state’s ongoing megadrought.”

Workers conduct inspections weekdays through April

An effective Leak Detection and Repair Program is one of the main components for water conservation and an important part of asset management. Photo: Otay Water District leak prevention

An effective leak detection and repair program is one of the main components for water conservation and an important part of asset management. Photo: Otay Water District

Customers may see workers inspecting the meter in front of their home or business, typically between 7 a.m. and 5 p.m., Monday through Friday. Weekend and night work may also be required. Inspections can range from a few minutes to a full day.

Inspection workers will wear a Utility Services Associates logo and carry company identification. They will not need access to the homes or property of customers. They may contact customers if they need to momentarily shut off their water supply for further testing. Water supply will not be shut off without permission from someone at the home or property.

The Otay Water District will continue its annual leak inspection through April. Photo: Otay Water District

Workers might lift water meter covers, inspect, and attach equipment to meters or valves. If they suspect a leak, the Otay Water District will contact the customer and advise them of the potential leak.

For questions on the Otay Water District Leak Detection Program, contact customer service at (619) 670-2222.

(Editor’s note: The Otay Water District is one of the San Diego County Water Authority’s 24 member agencies that deliver water across the San Diego County region.) 

First Aqueduct Maintenance Shutdown Runs Jan. 23-Feb. 1

The San Diego County Water Authority’s First Aqueduct will be shut down periodically over the next three months for maintenance projects to ensure a safe and reliable water supply for the region. Two shutdowns on the First Aqueduct are scheduled from January through March, when portions of the aqueduct will be relined, along with other maintenance.

Historic First Aqueduct-asset management-Pipeline 1-maintenance

First Aqueduct Maintenance Shutdown Runs Jan. 23-Feb. 1

The San Diego County Water Authority’s First Aqueduct will be shut down periodically over the next three months for maintenance projects to ensure a safe and reliable water supply for the region. Two shutdowns on the First Aqueduct are scheduled from January through March, when portions of the aqueduct will be relined, along with other maintenance.

The Water Authority and its member agencies are coordinating to minimize impacts to residents and businesses, while servicing pipelines that are more than 65 years old.

Customers of these affected retail agencies during the Jan. 23-Feb. 1 shutdown should check with their local water utility if they have questions about localized impacts: Fallbrook Public Utility District, Rainbow Municipal Water District, Rincon del Diablo Municipal Water District, Vallecitos Water District, Valley Center Municipal Water District, Vista Irrigation District, and the Yuima Municipal Water District.

Proactive Asset Management Program

“Work to proactively upgrade and maintain our water delivery system in coordination with our member agencies ensures the continued safe and reliable supply that serves the region’s 3.3 million residents and our $268 billion economy,” said Eva Plajzer, the Water Authority’s director of operations and maintenance. “Taking care of this critical infrastructure during the shutdown season extends the life of the aqueduct and reduces the cost of replacement.”

Maintenance shutdown during low-demand periods

Maintenance work on pipelines is scheduled during low-demand periods to minimize impacts on water service.

The other scheduled shutdown on the First Aqueduct is February 27 to March 8, which will also impact the Helix Water District and the cities of San Diego, Poway and Ramona.

First Aqueduct-Asset Management-Historic First Aqueduct-Shutdown

By order of President Franklin D. Roosevelt, the U.S. Navy built the San Diego Aqueduct to deliver Colorado River water to San Diego. Photo: San Diego County Water Authority archives

Historic First Aqueduct

The historic First Aqueduct was constructed in the 1940s with Pipeline 1 and in the 1950s with Pipeline 2. On November 28, 1947, the first Colorado River water flowed south from Riverside County for 71 miles into the City of San Diego’s San Vicente Reservoir via the First Aqueduct.

The Water Authority’s Asset Management Program is a key element of providing safe and reliable water supplies to the region. The agency continually assesses and inspects its 310 miles of large-diameter pipelines, which provide treated and untreated water to 24 member agencies in San Diego County. The program is widely recognized for pioneering work – including a patented inspection device – that promotes water affordability by avoiding costly unplanned disruptions in service.

As assets age, the Water Authority proactively replaces and repairs them to minimize impacts to member agencies and the public. Investments in the latest inspection technologies, including electromagnetic scanning, robotic inspections and 3D tunnel inspections help the Water Authority’s asset management team detect defects in pipelines and related facilities. Identifying potential issues early avoids more costly fixes later.

For more information about pipeline management, go to: www.sdcwa.org/projects-programs/programs/asset-management/.

(Editor’s Note: The Fallbrook Public Utility District, Rainbow Municipal Water District, Rincon del Diablo Municipal Water District, Vallecitos Water District, Valley Center Municipal Water District, Vista Irrigation District, Yuima Municipal Water District, Helix Water District and the cities of San Diego, Poway and Ramona are 11 of the San Diego County Water Authority’s 24 member agencies that deliver water across the metropolitan San Diego region.)

Mission Trails Water Project Completed; Park Trails Reopened

One of the San Diego County Water Authority’s large-scale capital improvement projects – the Mission Trails Flow Regulatory Structure II and Flow Control Facility (FRS II) – is now completed. The project upgraded the Water Authority’s untreated water supply system by improving the delivery of water to treatment plants serving the central and southern areas of San Diego County.

The FRS II project, which began construction in spring 2020, includes a new 5-million-gallon underground covered reservoir, a flow control facility and pipeline interconnections. The reservoir is covered with soil and vegetation, except for several access hatches and vents that allow for air movement inside the reservoir.

FRS II is the Water Authority’s second underground water tank located in Mission Trails Regional Park – the other one, located just west of the new one, is a treated water tank. The two tanks work to efficiently move water through the region, ultimately to customer’s homes and businesses.

“The Water Authority thanks the community for their patience while crews work to successfully build this important water delivery project,” said Michael Heu, the Water Authority’s construction manager for the project. “With the project completed, we are pleased to reopen the park trails which were previously impacted due to construction activity. The public’s safety was a top priority during this work.”

FRS II- Mission Trails- Flow Control Facility

Mission Trails Water Project Completed; Park Trails Reopened

One of the San Diego County Water Authority’s large-scale capital improvement projects – the Mission Trails Flow Regulatory Structure II and Flow Control Facility (FRS II) – is now completed. The project upgraded the Water Authority’s untreated water supply system by improving the delivery of water to treatment plants serving the central and southern areas of San Diego County.

The FRS II project, which began construction in spring 2020, includes a new 5-million-gallon underground covered reservoir, a flow control facility and pipeline interconnections. The reservoir is covered with soil and vegetation, except for several access hatches and vents that allow for air movement inside the reservoir. FRS II is the Water Authority’s second underground water tank located in Mission Trails Regional Park – the other one, located just west of the new one, is a treated water tank. The two tanks work to efficiently move water through the region, ultimately to customer’s homes and businesses.

“The Water Authority thanks the community for their patience while crews work to successfully build this important water delivery project,” said Michael Heu, the Water Authority’s construction manager for the project. “With the project completed, we are pleased to reopen the park trails which were previously impacted due to construction activity. The public’s safety was a top priority during this work.”

During construction, the Water Authority worked in partnership with key stakeholders, community partners, and the public to keep them well-informed about project status and park trail closures. Key construction highlights include:

  • Approximately 150,000 cubic yards of dirt excavated, with only 20,000 cubic yards exported
  • More than 100 concrete pours deposited 6,000 cubic yards of reinforced concrete
  • 100 columns inside the FRS II support the roof

The FRS II further enhances the Water Authority’s regional water delivery system – a system capable of delivering 900 million gallons of water each day to its 24 member agencies. The new Flow Control Facility delivers from 1 to 140 cubic feet per second of water to member agencies downstream of Mission Trails Regional Park.

Commitment to the Environment

While the Mission Trails Regional Park is known for its 8,000 acres of open space that draw hikers and outdoor enthusiasts, major sections of the Water Authority’s regional water delivery system run underground in the western portion of the park. When construction is required for pipeline maintenance or upgrading water facilities, the Water Authority makes minimizing the impact on the environment a top priority and the construction of the FRS II was no different.

Under the 2006 Good Neighbor agreement with the Mission Trails Regional Park Citizen’s Advisory Committee, the Water Authority is committed to rehabilitating any native habitats and open spaces in the park that are disturbed during construction to their natural state.

Since construction of the FRS II required some removal of native plants, the Water Authority pledged to plant and restore native vegetation of about 17 acres in the park.

Efforts for Revegetation and Hydroseeding

A critical part of successfully restoring the plant life began with mapping the plant habitats and soil types in the construction areas, then harvesting seeds from the native plants.

Before construction began in 2020, approximately 225 pounds of live seed were gathered from within the park and taken to a dedicated nursery. From these seeds, more than 22,000 native plants were grown and are currently being planted over a 17-acre area.

“The seeds harvested from the park prior to construction were twice as fertile than expected, which led to great success in growth,” said Summer Adelberg, Water Authority Principal Water Resource Specialist, who leads the revegetation efforts for the project. “We are pleased with the large number of plants already established throughout the project.”

Monitoring and Maintenance of Restored Areas

While water has already begun flowing through the underground storage tank structure, the restoration work and regrowth in the construction areas is far from over.

Once the planting is complete, each restored site will undergo a 120-day plant establishment period where the areas will be watered, weeded and maintained. That will be followed by a five-year maintenance and monitoring period to ensure the successful growth of the new plants.

In a few years, when revegetation has succeeded, you could be standing on top of nearly five million gallons of water and the only evidence of the massive underground tank will be small service hatches surrounded by native plants.

WNN Top Stories of 2022-WNN-Water News Network-Top Stories

Water News Network Top Stories of 2022

The Water News Network top stories of 2022 were drought-related and features about technology and college scholarships also engaged readers.

Water News Network Top Stories of 2022

The #1 Water News Network Top Story of 2022 focused on scholarship opportunities for water industry education and the growing need for water and wastewater industry workers:

Multiple California water associations and water agencies in San Diego County are offering college scholarships to help candidates achieve their goals.

A large number of recent retirements combined with the need for a skilled workforce up to date on new technologies have resulted in a critical need to increase the talent pool of skilled individuals in the water and wastewater industry, including in San Diego County.

Funding water industry education and training

Otay Water District officials presents the first donation for a scholarship fund to Cuyamaca College President Dr. Julianna Barnes named after Otay General Manager Mark Watton. Photo: Otay Water District

Among the highlights in the January 20 story, was news about the Mark Watton Scholarship Fund, established by the Otay Water District at the Foundation for Grossmont and Cuyamaca Colleges. The fund supports students attending the Center for Water Studies at Cuyamaca College. It honors Otay Water District General Manager Mark Watton’s four decades of service to the district.

Patent for pipeline inspection system

The #2 most viewed story on the Water News Network in 2022 highlighted an innovative tool to inspect pipelines developed by the San Diego County Water Authority:

The Water Authority has been granted its first ever utility patent for a device that inspects interior sections of water pipelines that are inaccessible or not safe to inspect without expensive specialized gear and training.

Industry-leading asset management program

Water Authority Operations and Maintenance Manager Martin Coghill invented the tool to save time, reduce costs and improve safety during ongoing aqueduct inspections. The Water Authority’s industry-leading Asset Management Program includes a proactive search for pipeline weaknesses that can be addressed before they become large and costly problems.

The U.S. Patent and Trademark Office awarded Patent #US011,293,581 on April 5, 2022, for the Water Authority’s pipeline inspection system, which comprises a body, cameras, support members and light sources to capture high-resolution images of pipeline walls.

Utility Patent-Pipeline Inspection Tool-

The San Diego County Water Authority has been granted its first ever utility patent for a device that inspects interior sections of water pipelines that are inaccessible or not safe to inspect without expensive specialized gear and training. Inventor Martin Coghill calls the tool “Scanny.” Photo: San Diego County Water Authority

Commitment to innovation

“This new pipeline inspection tool is a prime example of the Water Authority’s commitment to innovation that benefits ratepayers by saving money and enhancing reliability,” said Water Authority General Manager Sandra L. Kerl. “We have a long history of advancing industry-leading solutions, from state legislation to adopt low-flow toilets in the early 1990s to the nation’s largest water conservation-and-transfer program a decade later to the largest seawater desalination plant on the continent.”

Rebates and water conservation

The third most-viewed story detailed the California state tax breaks available and rebates to remove grass and save money, as California edged into the fourth consecutive year of drought:

A newly signed state law exempts local rebates for grass replacement from state income tax, ensuring more dollars can be spent creating beautiful and functional WaterSmart yards.

“Drought conditions make it imperative to boost water conservation in San Diego County and across the state,” said Sandra L. Kerl, general manager of the San Diego County Water Authority. “Using California tax incentives and regional rebates to install WaterSmart landscapes is a clear winner for stretching water supplies both today and for generations to come.”

The WNN feature story alerted homeowners and businesses in San Diego County that they are eligible to receive between $2 and $4 per square foot for removing grass and replacing it with low water-use plants that are better suited to withstand the hot and dry conditions that continue to hammer the West. All customers are eligible for the base rebate of $2 per square foot, but other agencies offer additional funding, including the City of San Diego and the County of San Diego.

Check latest rebates here: your-water/conservation/residential-rebates-programs

Claude “Bud” Lewis Carlsbad Desalination Plant

100 billion gallons-reverse osmosis-seawater desalination

Reverse osmosis is the heart of the Carlsbad Desalination Plant. During this process, dissolved salt and other minerals are separated from the water, making it fit for consumption. This reverse osmosis building contains more than 2,000 pressure vessels housing more than 16,000 reverse osmosis membranes. Photo: San Diego County Water Authority

Drought-proof supply

Coming in as the 4th most popular story on the WNN in 2022 was the benefit of seawater desalination providing a drought-proof supply for San Diego County:

As the worst drought in 1,200 years grips the West, the Claude “Bud” Lewis Carlsbad Desalination Plant is protecting the San Diego region with 50 million gallons a day of drought-proof water.

Completed in 2015, the plant was built before the period of increasing inflation that’s driving up prices for water infrastructure projects that are just starting. That means the desal plant is safeguarding the region’s economy and quality of life today at a lower cost than it would be to build now.

Carlsbad Desalination Plant-Water Supply Portfolio-desalination

The Carlsbad Desalination Plant uses reverse osmosis to produce approximately 10% of the region’s water supply; it is a core supply regardless of weather conditions, and it is blended with water from other sources for regional distribution. Photo: San Diego County Water Authority

100 billion gallons

“Desalination remains a valuable tool for our community when it comes to ensuring safe and reliable water supplies no matter the weather,” said Jeremy Crutchfield, water resources manager for the Water Authority.  “It has shown its value by generating nearly 90 billion gallons over the past six years, and I’m confident it will continue to do so in the years ahead.”

In late-October 2022, the Carlsbad Desalination Plant passed a milestone, having served more than 100 billion gallons of high-quality, locally controlled water over the past seven years – as California entered a fourth consecutive year of severe drought.

(Editor’s Note: Click on the years to see the most viewed stories from 2019, 2020, and 2021. The Otay Water District is one of the San Diego County Water Authority’s 24 member agencies that deliver water across San Diego County.)

Work Begins on Water Authority’s Historic First Aqueduct

The San Diego County Water Authority’s First Aqueduct will be shut down periodically over the next four months as work begins for maintenance projects  to ensure a safe and reliable water supply for the region. A series of three shutdowns on the First Aqueduct is scheduled from December through March, when portions of the aqueduct will be relined, along with other maintenance.

As work begins, the Water Authority and its member agencies are coordinating to minimize impacts to residents and businesses, while servicing pipelines that are more than 65 years old.

Customers of these affected retail agencies during the Dec. 5-14 shutdown should check with their local water utility if they have questions about localized impacts: Fallbrook Public Utility District, Rainbow Municipal Water District, Rincon del Diablo Municipal Water District, Vallecitos Water District, Valley Center Municipal Water District, Vista Irrigation District, and the Yuima Municipal Water District.

“Proactively managing our water delivery system in coordination with our member agencies ensures we continue to provide a safe and reliable supply that serves the region’s 3.3 million residents and our $240 billion economy,” said Eva Plajzer, the Water Authority’s director of operations and maintenance. “It requires an extraordinary amount of work each fall and winter during the shutdown season to take care of this critical infrastructure.”

Maintenance work on pipelines is scheduled during low-demand periods to minimize impacts on water service. The other scheduled shutdowns on the First Aqueduct are January 23 to February 1 and February 27 to March 8. The February 27 to March 8 shutdown will also impact the Helix Water District and the cities of San Diego, Poway and Ramona.

San Diego County Water Authority And its 24 Member Agencies

First Aqueduct Maintenance Shutdown Runs Dec. 5-14

November 30, 2022 – The San Diego County Water Authority’s First Aqueduct will be shut down periodically over the next four months for maintenance projects to ensure a safe and reliable water supply for the region. A series of three shutdowns on the First Aqueduct is scheduled from December through March, when portions of the aqueduct will be relined, along with other maintenance.

Three Winter Aqueduct Shutdowns Lie Ahead

Valley Center Municipal Water District and its customers are long accustomed to dealing with periodic aqueduct shutdowns which allow the district’s sole wholesale water supplier, the San Diego County Water Authority, to inspect, repair, and make improvements to our imported water aqueduct system. 

However, this coming winter will be especially challenging, as there will be three consecutive aqueduct shutdowns in fairly rapid succession: (1) December 4 –14, 2022, (2) January 22 – February 1, 2023, and (3) February 26 – March 8, 2023.

At play is the fact that the three tunnels on the 1st San Diego Aqueduct (“1st Aqueduct”) need to be relined to protect the quality of the treated water traveling north to south through the enclosed aqueduct, and restore its operational integrity. The 1st Aqueduct serves five of VCMWD’s seven Aqueduct Connections, spanning the full length of the District’s 100-square-mile service area. Although VCMWD does have a connection to the 2nd San Diego Aqueduct (“2nd Aqueduct”), the 1st Aqueduct provides water to approximately 85% of the District’s service area. Completed in the early 1950s, the 1st Aqueduct began serving the fledgling Valley Center Municipal Water District soon after its formation election in 1954 and has served the district continuously for 67 years.