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The City of San Diego's aggressive maintenance program has resulted in fewer water main breaks in 2020. Photo: City of San Diego

Water Main Breaks Decline in San Diego for Fourth Year in a Row

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Increased maintenance efforts by the City of San Diego of its water system infrastructure is paying off for ratepayers. For the fourth year in a row, the number of water main breaks has decreased in the City of San Diego. Thirty-three water main breaks were reported in 2020, the lowest total in more than 15 years.

The City credits its aggressive multi-year program to replace aging pipelines for bringing the numbers far below the peak of 131 breaks in 2010.

“The City’s Public Utilities Department has worked very hard to improve the reliability of our water system infrastructure,” said Shauna Lorance, director of public utilities. “Our citizens benefit greatly from fewer main breaks because it means less water loss and lower emergency repair costs.”

Fifty-five miles of pipeline replaced in next four years

Crews replace old cast iron pipe with new PVC pipe along Park Boulevard. Photo: City of San Diego

Crews replace old cast iron pipe with new PVC pipe along Park Boulevard. Photo: City of San Diego

San Diego’s continuing program to replace old cast iron water mains has played a major part in the decrease in breaks. Some cast-iron pipes had been in service for more than a century. Since 2013, the city has replaced approximately 180 miles of water pipelines. By 2025, the last 55 miles of cast iron water mains are scheduled to be replaced with water mains made of durable polyvinyl chloride.

Water infrastructure maintenance programs also deliver a benefit to our region’s overall economy. According to the Economic Policy Institute, $188.4 billion spent on water infrastructure investments over five years would yield $265 billion in economic activity and create 1.9 million jobs.

“Improving and maintaining our water infrastructure is an important part of our commitment to serving our customers,” said Lorance. “We will continue to provide reliable water services our customers deserve.”

City of San Diego public utilities crew members replace an aging cast iron water pipe at 5th and Robinson in Hillcrest. Photo: City of San Diego water main breaks

City of San Diego public utilities crew members replace an aging cast iron water pipe at 5th and Robinson in Hillcrest. Photo: City of San Diego

City of San Diego public utilities crews routinely oversee preventative maintenance work to help determine potential leaks and breaks before they occur. Private contractors have completed the bulk of the pipeline replacement projects under the direction of the City’s Engineering and Capital Projects Department.

Helix Water District-Demonstration Landscape-WaterSmart

Helix Water District Demonstration Landscape Blossoms

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The plants are thriving at Helix Water District’s demonstration landscape just eight months after the project was completed. The WaterSmart plants at the District’s administration office in La Mesa beautify the neighorhood while inspiring people to install sustainable, WaterSmart landscaping.

“Everything is growing in beautifully,” said Helix Water District General Manager Carlos Lugo. “We started with smaller plants to reduce costs and planned for growth. We’re happy to share this resource with our customers and community.”

Demonstration landscape includes water-wise gardens

The demonstration landscape includes three unique water-wise gardens on the streets around the building, including a Mediterranean garden on University Avenue, a desert landscape on Lee Avenue and a California native landscape along the building’s main entrance on Quince Street. Each garden started with smaller plants of varying colors, flowers and textures.

Helix Water District-Landscape-WaterSmart-Lee Ave

Desert landscape on Lee Avenue at Helix Water District in La Mesa. Photo: Helix Water District

“The grasses in our native garden are filling in the mulched areas, creating a soft meadow-like appearance,” said Lugo. “We are also seeing the canopies of the Palo Verde trees expanding, and underneath, the succulents and agaves are blanketing the hillside, filling the landscape with color and texture.”

Helix Water District-Landscape-WaterSmart-Grasses

Grasses create a meadow-like appearance in some of the Helix Water District demonstration landscape gardens. Photo: Helix Water District

Plants provide wildlife habitat

The plants in all three of the gardens are adapted to San Diego’s climate and need half to a fifth of the water that a traditional lawn needs. In addition to requiring less water, WaterSmart landscapes also require less maintenance and provide habitat for local wildlife like honeybees, birds and butterflies.

In each garden, plant markers provide the name of each plant and a QR code, which when scanned with a smartphone, provide each plant’s name, sun and water needs, mature size and photo.

Customers can also use the district’s interactive webpage to make a list of their favorite plants and download each garden’s design plan. Information on efficient irrigation and rebate programs is also available.

Helix Water District-Landscape-WaterSmart

Native, water-wise plants thrive on Quince Street in one of the Helix Water District gardens. Photo: Helix Water District

The project was completed in June 2020 and partially funded through a grant from the Metropolitan Water District of Southern California.

Helix Water District provides water treatment and distribution for 277,000 people in the cities of El Cajon, La Mesa and Lemon Grove, the community of Spring Valley and areas of Lakeside – east of downtown San Diego. Helix is also a founding member of The Water Conservation Garden, a nearly six-acre water-wise demonstration garden in El Cajon.

Regular valve maintenance prevents unanticipated shutdowns of water service to Vallecitos Water District customers. Photo: Vallecitos Water District

Vallecitos Water District Valve Maintenance Program Ensures Reliable Service

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Just as owners perform routine maintenance to keep their cars running smoothly, water systems need regular maintenance to provide reliable service. The Vallecitos Water District’s Valve Maintenance Program ensures these vital components in its water distribution remain in good working condition throughout the District. Valves left without proper maintenance for long periods can become a serious problem, especially in an emergency water shutdown.

VWD’s Construction Department manages the program. Two-person teams use maps to familiarize themselves with the location of the 4,959 valves in the system, not including fire hydrants and fire services. Critical valves serve hospitals and businesses. Between 300 and 500 valves are serviced monthly, following American Water Works Association standards.

Small but vital parts monitored

Construction worker Justin Shutt explains valves are isolation and shutoff point for water mains along streets.

“If we have a main break, where a main ruptures, we need to be able to isolate those certain sections without taking too many people out of water” by shutting the valves, said Shutt.

Valve Maintenance Technician John Truppa runs the valve maintenance program. He trains crew members how to use the valve exerciser machine, read maps properly, and respond to customer calls. Customer service is a priority. When a customer reports a water line leak in their home, the valve maintenance crew helps by shutting off the water at the meter.

The Vallecitos Water District’s geographic information system provides a written record of valve location, condition, maintenance, and inspection records for each valve serviced. Reliable recordkeeping is vital to ensure all valves receive regular maintenance and are replaced before coming to the end of their service life to reduce the percentage of failures and inoperable valves. The District monitors valve life span to replace them prior to failure. Areas prone to water main breaks and valves on mains serving large groups of customers get added attention.

Taking turns

Between 300 and 500 valves are serviced monthly by two person teams. Photo: Vallecitos Water District

Between 300 and 500 valves are serviced monthly by two-person teams. Photo: Vallecitos Water District

Valve maintenance involves performing a prescribed number of turns to “exercise” or test the valve. Turns are calculated in part by the size of the main. Larger transmission water mains require more valve turns, both up and down. Turning speed is also important. If valves are closed too quickly, it creates “water hammer,” or sudden pressure forcing water down the line, potentially triggering water main breaks. You may have heard a water hammer in your house when you shut off a household valve suddenly.

Ounce of prevention

The District's geographic information system (GIS) provides a written record of valve location, condition, maintenance, and inspection records for each valve serviced. Photo: Vallecitos Water District

The Vallecitos Water District’s geographic information system provides a written record of valve location, condition, maintenance, and inspection records for each valve serviced. Photo: Vallecitos Water District

Regular valve maintenance prevents unanticipated shutdowns of water service to Vallecitos customers.

“We want to take as few people out of water at a time as we possibly can,” said Shutt. “We keep up on the upgrades and make sure the valves are working the way they’re supposed to.”

The proactive approach by the Vallecitos Water District ensures the reliable delivery of quality water to its customers while ensuring all systems are working properly.

Crews work on First Aqueduct Rehabilitation.

Major Rehabilitation of First Aqueduct Complete

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The San Diego County Water Authority recently completed a major rehabilitation project on the historic First Aqueduct in North San Diego County. The project renovated and replaced dozens of structures on two large-diameter pipelines, including the historic Pipeline 1. Pipeline 1 delivered the first imported water to the San Diego region in 1947 and remains a vital part of the regional water delivery system. The construction contract for the project was worth approximately $30 million.

Coordination with member agencies key to success

Over the past two years, four coordinated shutdowns in collaboration with member agencies and communities in North San Diego County ensured minimum impact to nearby neighborhoods and water users.

“The First Aqueduct delivered imported water to our region for the first time more than 70 years ago, and it remains critical to water supply reliability for our region to this day,” said Gary Croucher, chair of the Water Authority Board of Directors. “Through coordination throughout the Water Authority and collaboration with our member agencies, we completed this extraordinarily complex project to ensure these pipelines operate for generations to come.”

The project was completed on January 12 and will be presented to the Water Authority’s Board of Directors at their March meeting.

Proactive asset management program maintains reliable water supplies

The timely rehabilitation of the First Aqueduct is part of the Water Authority’s proactive asset management program. A key element of providing safe and reliable water supplies is continually assessing the agency’s 310 miles of large-diameter pipeline and making the upgrades necessary to continue serving the region. That work is funded through water bills paid by residents and businesses across the county to sustain the region’s $245 billion economy and quality of life.

The First Aqueduct project began in early 2019 and was one of the most complicated pipeline retrofits in the Water Authority’s history. The upgrades included replacing 14,500 linear feet of lining on the steel pipe sections of Pipeline 1, removing 16 associated structures and retrofitting 46 structures. All this work was accomplished while ensuring regional water service remained safe and reliable. In addition, redundant connections to six flow control facilities were added between the two pipelines to improve the aqueduct’s operational flexibility.

Collaboration between departments increased efficiency

The Water Authority’s Engineering Department provided construction management and inspection for the retrofit. Before the pipeline was returned to service, secondary tie-in connections to flow control facilities were added and crews removed bulkheads that were used to isolate pipeline sections during the rehabilitation work. Once the work was completed, staff inspected all work areas in the pipeline to ensure they were clear of construction debris.

After the bulkheads were removed, the Operations and Maintenance team disinfected the highly impacted work areas and then refilled the aqueduct to prepare for a second disinfection of both pipelines with chlorine. Water samples at locations throughout the aqueduct were collected and analyzed to ensure the system was safe to return to service. Once all the samples passed analysis, all flow control facilities were placed back in service and the aqueduct was returned to normal operations.

San Diego County Water Authority-Building at night-MWD

Water Authority Prevails in Rate Litigation

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The San Francisco Superior Court has ruled the San Diego County Water Authority is the prevailing party in the agency’s first two lawsuits to be heard challenging rates and charges set by the Los Angeles-based Metropolitan Water District of Southern California. The order entitles the Water Authority to recover its attorneys’ fees and costs in those cases, in addition to a $44 million damage and interest award made earlier.

“San Diego prevailed, and the judgment not only benefits its own ratepayers but all of the nearly 19 million people in Metropolitan’s service area because enforcing cost-of-service principles serves the interests of all ratepayers,” said Superior Court Judge Anne-Christine Massullo in her Jan. 13 order, which can be appealed. The exact amount of recoverable fees will be decided later.

In light of the order, Water Authority Board Chair Gary Croucher reiterated the Water Authority Board’s longstanding desire to avoid litigation and find common ground with other MWD member agencies. “This ruling only enhances our determination to find an equitable resolution that will not only conclude the few issues that remain pending in court, but also help avoid future litigation as new rates and charges are being considered for 2023 and subsequent years,” he said.

Protecting water ratepayers

The Water Authority filed lawsuits between 2010 and 2018 challenging water rates and charges as they were set and imposed by MWD on San Diego County agencies and their ratepayers. After a favorable court ruling invalidating MWD’s Water Stewardship Rate on the Exchange Agreement, the Water Authority worked with MWD to try to resolve the remaining issues. The MWD Board promised to fund almost $500 million in local water supply projects in San Diego County and the Water Authority agreed to dismiss claims against MWD’s Water Stewardship Rate on supply, which is used to fund local projects under the MWD program.

“It is deeply gratifying that the court not only validated our claims but acknowledged the importance of protecting ratepayers by water agencies following the law,” Croucher said. “This week’s order makes it clear once and for all that our desire to protect San Diego ratepayers was never intended to harm MWD, its other member agencies or the ratepayers they serve. Rather, the litigation was necessary to address serious flaws in MWD’s rates that will, as the court said, ultimately benefit not only San Diego County ratepayers, but all Southern Californians.”

Rate litigation

The Water Authority’s first two rate cases – covering 2011 to 2014 rates – resulted in the court ordering an increase in the Water Authority’s preferential right to MWD water by as much as 100,000 acre-feet a year, equivalent to about twice the annual production of the $1 billion Carlsbad Desalination Project. MWD has already complied with this ruling and adjusted its records accordingly.

The court also determined that MWD must pay the Water Authority damages for illegal charges imposed on delivery of the Water Authority’s water under the Exchange Agreement. A Superior Court judge in August 2020 awarded the Water Authority $44,373,872.29 covering rates paid by San Diego County ratepayers during 2011-2014.

Water Stewardship Rate charges

San Diego County ratepayers have also avoided paying more than $45 million from 2018-2020 after MWD suspended its invalid Water Stewardship Rate charges on the Exchange Agreement. The improper charges would have cost local residents more than $500 million over the term of the Exchange Agreement. Currently, MWD owns the only pipeline that can deliver the Water Authority’s independent supply of Colorado River water to San Diego County and it sets the unregulated water rates which govern and control the delivery of water to San Diego County.

In addition, the court ruled that MWD had illegally barred the Water Authority from receiving money from MWD’s local water supply program, even though the Water Authority was still being forced to pay for it. MWD lifted the ban in response to the court’s order, and ultimately promised the nearly $500 million for water supply projects in San Diego County including the City of San Diego’s Pure Water North City Project Phase 1, East County Advanced Water Purification Project, Escondido Membrane Filtration Reverse Osmosis Facility and Fallbrook Groundwater Desalter Project.

Mission Trails FRS II water project construction

FRS II: Mission Trails Water Project Takes Shape

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When looking from the right vantage point towards Mission Trails Regional Park, a brown hill can be seen. This is the San Diego County Water Authority’s Mission Trails Flow Regulatory Structure II Project, or FRS II, under construction. Once complete, the dirt hill will be leveled to its previous contours and revegetated with native plants – many seeded from plants within the park itself.

An underground reservoir is being constructed within the park to improve the Water Authority’s untreated water system in the northwest area of the park. The upgrade will increase reliable water delivery to treatment plants that serve the central and south sections of San Diego County.

Mission Trails FRS II construction area

From a vantage point on a trail in Mission Trails Regional Park, construction equipment can be seen working on the underground water tank that will help balance regional water flows. Photo: Jim Madaffer

FRS II will help balance regional water flows

Work efforts on the new FRS II are beginning to take shape with many of the wall sections installed.

The FRS II will be an underground concrete water tank that will store slightly less than five million gallons of water and be used to balance flows in the aqueduct system. FRS II will be the second underground water tank in the park – both work to efficiently move water through the region. Construction is also underway on a new flow control facility, which is part of the project.

Drone aerial view of Mission Trails FRS II project

Crews captured an aerial view of part of the project site using a drone, which helps to visualize project areas that are not easily accessible. Photo: San Diego County Water Authority

Contruction closure information

Some trails in the northwest area of the park are closed during FRS II construction hours (Monday through Friday from 7 a.m. to 7 p.m.), with portions closed 24 hours a day, 7 days a week.

The Water Authority created an interactive map showing the location of the closed trails. Visit www.sdcwa.org/mission-trails-FRS to view the map and learn more information about the project. For questions about the project call a toll-free project information line at (877) 682-9283, ext. 7004, or email

Night construction is underway for the Pure Water Oceanside project including well drilling. Photo: City of Oceeanside

Pure Water Oceanside Installing New Pipelines and Drilling Wells

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Pure Water Oceanside is installing new pipelines and drilling wells as the recycled water project continues on track for completion in 2022. The advanced water purification project, and expansion of the City of Oceanside’s existing recycled water system, will deliver a new, local source of high-quality drinking water supplying more than 30% of the city’s water supply when completed.

Residents are kept up to date on the progress of construction for the Pure Water Oceanside project. Photo: City of Oceanside

An interactive construction map is one of several sources for information about the Pure Water Oceanside project. Photo: City of Oceanside

Residents are kept up to date on construction impacts to streets and other infrastructure through several outreach efforts including an interactive construction map, detailed online schedule, regular newsletters, and virtual open house presentations live on the City of Oceanside’s YouTube channel, offering residents the opportunity to ask questions.

“We understand living and commuting near a construction site is not easy,” said Cari Dale, water utilities director for the City of Oceanside. “Everyone involved with the project is thankful to those residents and business owners who live and work in the construction zone for their patience and cooperation. It is crucial to the successful on-time completion of this vital infrastructure project.”

Pipeline construction

Pure Water Oceanside pipeline installation is now taking place at North River Road and the Douglas Drive intersection, and moving towards Pala. In addition, pipeline installation on Pala Road is now underway. The road will remain open both ways but will require lane closures. Photo: City of Oceanside

Pipeline installation at North River Road and the Douglas Drive intersection is moving towards Pala Road. Photo: City of Oceanside

Pipeline installation is now taking place at North River Road and the Douglas Drive intersection, and moving towards Pala. Lane closures on Douglas Drive allow access to the businesses through the entrance on North River Road.

In addition, pipeline installation on Pala Road is now underway. The road will remain open both ways but will require lane closures.

Well construction, which includes injection and monitoring wells, requires closing a section of Coco Palms Drive (south of Cherrystone Street), which will reduce construction time and impacts to nearby residents. Well drilling will continue 24 hours a day, seven days a week for approximately three weeks until early 2021. During this time, 16-foot sound walls have been installed around the drilling site to direct sound waves up into the atmosphere and away from residents. Night construction lighting will also be mitigated by the sound walls.

After drilling is complete, additional work will be conducted for testing and to install well infrastructure. The post-drilling work will take place weekdays during business hours and occasional Saturdays.

River Bike Trail remains open

Access map for the popular River Bike Path while the Pure Water Oceanside project construction is underway. Map: City of Oceanside

Access map for the popular River Bike Path while the Pure Water Oceanside project construction is underway. Map: City of Oceanside

Access to the popular River Bike Trail path is still accessible on the west side of Douglas Drive. Riders are asked to cross safely at the marked crosswalk at Pala Road and Douglas Drive to access the trail and avoid construction equipment.

Construction on schedule 

Well drilling will allow repurified water to be stored in underground aquifers. Photo: City of Oceanside

Repurified water will be stored in underground aquifers. Photo: City of Oceanside

Construction for the entire project is expected to be complete in 2022. While most construction will take place during regular weekday business hours, some critical pipeline construction elements will require temporary extended work hours and occasional Saturdays to complete the project on time.

Residents can sign up for email updates about the project. In the event of any immediate concerns, residents can call 760-435-4570 and representatives will troubleshoot issues.

A happy Lake Jennings angler shows off his rainbow trout prize during the fall season opening weekend. Photo: Lake Jennings trout season

Lake Jennings Trout Season Opening A Success

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Lake Jennings, the Helix Water District reservoir in Lakeside, is one of San Diego County’s hot spots for trout fishing. It ranks second in the county according to the recreational fishing website SDFish.com. The 2020 fall trout fishing season got underway on November 20, with enthusiastic anglers enjoying safe outdoor recreation with pandemic precautions in place.

“It’s one of those family activities people can do right now,” said Kira Haley, Helix Water District recreation manager. “Kids need to get outside and spend time in the fresh air. It was a big weekend; it was really fun.”

Through the opening weekend, Lake Jennings issued 931 permits, including 161 for children, an increase of 10% over 2019.

Showing off a string of rainbow trout along with the beautiful Lake Jennings scenery. Photo: Lake Jennings trout season

Showing off a string of rainbow trout along with the beautiful Lake Jennings scenery. Photo: Lake Jennings

Haley said due to safety measures, the lake staff worked hard to keep lines to a minimum.

“We are only allowing one family into the bait and tackle shop at a time,” said Haley. “One of the first things we did was get a portable register. It allows us to go up and down the line of people selling permits to those who don’t need to come into the store itself.”

Trout arrived last week from Thatcher, Idaho. The 2,500 pounds of fish travel 913 miles in an oxygenated truck to stock the lake.

“The lake is so clear you can see the fish,” she said. “A lot of our fishermen are sight fishing. They can follow a school around the lake and cast before they get there. It becomes more of an exercise activity too.”

Fishing and social distancing go together

Catfish were also biting. This impressive 38-pound catfish was safely released back into the lake. Photo: Lake Jennings

Catfish were also biting. This impressive 38-pound catfish was safely released back into the lake. Photo: Lake Jennings

Fishing is a natural social distancing activity.

“We have five miles of shoreline there’s plenty of space to spread out,” said Haley. “When you’re working with hooks and big fishing poles, you want to stay away from other people.”

Haley praised visitors for their compliance with all safety precautions, which have been in place since July.

“People are being respectful,” she said. “They’re wearing their masks, which makes us so happy. This is allowing us to stay in business and stay in compliance.”

She said all boats, lifejackets and seat cushions are disinfected after every use. Haley said only EPA approved disinfectants are used around the lake.

The lake’s 97 campground spaces are currently booked three weeks in advance for weekend dates.

Nothing tastes quite as good as freshly caught fish prepared on the grill at Lake Jennings. Photo: Lake Jennings

Nothing tastes quite as good as freshly caught fish prepared on the grill at Lake Jennings. Photo: Lake Jennings

The lake remains open for activities, including nature walks and birding from 6 a.m. to 3 p.m. Friday through Sunday. Night fishing ended November 20 due to California’s 10 p.m. curfew order.  Haley said night fishing might return on a limited basis until 9 p.m. on future weekends. Check the lake’s website for the latest information.

Lake Jennings is more than just a great fishing spot. The lake is also where the Helix Water District stores imported water from the Colorado River and Northern California and local water from Lake Cuyamaca and El Capitan Reservoir to provide safe, reliable water to East County residents.

U.S. Marine Corps veteran Sam Pacheco is one of 15 Helix Water District employees who are military veterans. Photo: Water Authority Veterans Day

Veterans Day Salute to San Diego Water Industry Vets

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Many of the San Diego region’s 4,500 water and wastewater workers are military veterans. The San Diego County Water Authority and its 24 member agencies are recognizing those veteran water industry professionals this week in honor of Veterans Day.

One of those water industry employees with a military background is Sam Pacheco, a field service representative with the Helix Water District. Pacheco served 20 years in the U.S. Marine Corps, retiring at the rank of Gunnery Sergeant. He ended his career at MCAS Miramar in Aircraft Rescue and Firefighting, as an on-base firefighter. Along with Veterans Day, Pacheco is celebrating the 245th birthday of the Marine Corps (November 10).

Public service a tradition

“When I got to serve in the military, I got to serve the folks of this country,” said Pacheco. “Now that I work for the Helix Water District, I do the same thing, serving the people of the community. It’s as gratifying. When I think about serving the public on a different level, I still get to do it now for Helix.”

Helix Water District has 15 military veterans on its staff. Board President Mark Gracyk served as an enlisted engineer in the U.S. Army, and Division 1 Director Dan McMillan served as a first lieutenant in the U.S. Marine Corps and as a company commander in the California National Guard.

Water and wastewater careers draw on military experience

Veteran Sam Pacheco said he gets a second opportunity to serve his community in his job with the Helix Water District. Photo: Water Authority

Veteran Sam Pacheco said he gets a second opportunity to serve his community in his job with the Helix Water District. Photo: San Diego County Water Authority

When Pacheco retired from the Marine Corps in 2011, he worked in the heating and air conditioning industry.

“I started working at Lake Jennings part-time,” said Pacheco. “A meter reader job became available and I thought, “‘I like exercise, I like being outside all day, that sounds like a job for me.”’

He became a full-time employee in March 2018.

Military to civilian employment

Pacheco said it is common for veterans to struggle to find civilian employment and it was true for him.

“This was the biggest transition going from the military to civilian employment, finding someone just as professional as the military,” he said. “Helix runs a very professional outfit. The caliber of people at the District, the work tempo, the expectations, the standards expected. I couldn’t have gotten luckier. It’s a big blessing for me.”

Pacheco appreciates the organization and high standards for water industry employees.

“When you come from something like the Marine Corps for 20 years, you are used to having all the I’s dotted and T’s crossed,” he said. “The way Helix takes care of business and runs the district, for me I don’t ever have to worry ‘has someone taken care of this or thought about it?’ I’m really impressed.”

Credit for military experience

The San Diego County Water Authority has co-sponsored state legislation in recent years to create and expedite career pathways and encourage veterans to consider careers within the water industry after serving their country. An effort by the Water Authority and its member agencies helped pass legislation that gives credit to veterans for their military experience when transitioning to the water and wastewater industry.

Signed into law in 2019, Assembly Bill 1588 requires the State of California recognize the experience and education veterans acquire while they are in the military for its operator certification program for water and wastewater treatment plants and water distribution systems.

Drinking Water Reservoir

Hauck Mesa Storage Reservoir to Improve Water Reliability

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The San Diego County Water Authority is gearing up to construct a 2.1 million-gallon drinking water reservoir on the Valley Center Pipeline to enhance service reliability throughout the region. The Hauck Mesa Storage Reservoir project in northern San Diego County is part of the Water Authority’s Capital Improvement Program.

Construction work is scheduled to begin in early 2021 and is estimated to be completed in the winter of 2022. The project includes demolition of an abandoned steel tank, and construction of a new 2.1 million-gallon concrete reservoir, isolation vault, and underground flow control facility, as well as other site improvements.

New infrastructure development by the Water Authority and its 24 member agencies ensures the delivery of water to support the region’s $245 billion economy and the quality of life for 3.3 million residents.

Hauck Mesa-Storage Reservoir-infrastructure

The Hauck Mesa Storage Reservoir will temporarily store drinking water pumped from the Claude “Bud” Lewis Carlsbad Desalination Plant and the Twin Oaks Valley Water Treatment Plant. Graphic: San Diego County Water Authority

Hauck Mesa Storage Reservoir

The new storage reservoir will improve water deliveries by temporarily storing drinking water pumped to the Valley Center Municipal Water District, Vallecitos Water District, Vista Irrigation District, and the Rincon del Diablo Municipal Water District from the Claude “Bud” Lewis Carlsbad Desalination Plant and the Twin Oaks Valley Water Treatment Plant. The stored water will safeguard water deliveries from unanticipated water interruptions or pump station outages.

“This project is just one of the infrastructure improvement projects the Water Authority is undertaking to fulfill the agency’s mission to provide a safe and reliable water supply for today and the future,” said Kirk Whitaker, the Water Authority’s project manager.

The Water Authority will work closely with the Valley Center community, Valley Center Municipal Water District, and homeowners to minimize short term construction impacts in the area to ensure safe, uninterrupted water service. For more information on the Hauck Mesa Storage Reservoir project, go to the Water Authority’s Future Projects webpage.