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Valley Center MWD Cool Valley Reservoir

Valley Center Reservoir Project ‘Exceptional’

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The Valley Center Municipal Water District has been advised by the California State Water Resources Control Board that its Cool Valley Reservoir Cover Replacement Project was recognized by the Environmental Protection Agency’s new AQUARIUS Program as an “Exceptional Project,” among only 10 identified as such nationwide.

Each year, EPA’s Aquarius Program recognizes one Drinking Water State Revolving Fund project from each of its 10 regions nationwide for “exceptional focus on sustainability, protection of public health” while demonstrating a high level of innovation.

The $4.2 million Cool Valley Reservoir Cover Project was nominated by the SWRCB, EPA’s state-level partner in the DWSRF Program in California.

Cool Valley Reservoir Project ‘Innovative’

Constructed in 1975 and with the original floating flexible reinforced “Hypalon” material installed in 1992, Cool Valley is Valley Center’s largest drinking water reservoir with a capacity of 57 million gallons, providing about 40% of the District’s total covered drinking water storage capacity. By 2015, the floating cover had reached its full life expectancy and started to experience failures, possibly placing the quality of the water in the reservoir at risk. 

At that point the decision was made to take the reservoir out of service and seek DWSRF financing to cover the estimated $4.2 million project cost, rather than make additional repairs to the existing liner. 

With interim adjustments to system operations and cooperation from Valley Center’s wholesale supplier, the San Diego County Water Authority, the system operated reliably with Cool Valley off-line.

‘Exceptional Project’ reduces bacteria and energy use

District engineering staff and consultants were successful in securing the 20-year loan at 1.6% interest. With the loan secured, the project was approved by the Valley Center Board in the FY 2015/2016 Budget.  The project took 12 months to complete and was back on line by mid-2017. The effort was overseen by Wally Grabbe, District Engineer and managed by Dennis Williams (retired), Deputy District Engineer. 

Projects nominated by the states must meet three major criteria, including providing Safe Drinking Water Compliance, Public Health Benefit and having Financial Integrity.  Additionally, each project must demonstrate leadership in dealing with emerging contaminants, aging infrastructure or innovative financing, affordability, water loss control, efficient water and/or energy use, creative approach to project planning and implementation, and/or creating water system partnerships.

In making the award, the SWRCB and EPA noted that the Valley Center Cool Valley Project will not only protect water quality from atmospheric vectors, but the new cover-liner will “prevent leakage from the reservoir, reduce bacteria by creating a barrier between the drinking water and the concrete liner… and reduce chemical and energy use.

During the same period of time, the Valley District designed and installed a 95kW Photovoltaic Solar Array and upgraded the Cool Valley Pump Station, all located on the Cool Valley Reservoir site.

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.

Sandra L. Kerl is new General Manager of the San Diego County Water Authority

Sandra L. Kerl Appointed General Manager of San Diego County Water Authority

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The San Diego County Water Authority Board of Directors approved a contract with Sandra L. Kerl to be the new general manager of the region’s wholesale water agency, following a months-long national search. The Board approved the contract in open session during its regular monthly meeting Nov. 21 at Water Authority headquarters.

Kerl fills the position vacated by longtime General Manager Maureen Stapleton, who retired in March. She has served as the agency’s acting general manager since Stapleton’s departure, working closely with the Board to lead a staff of approximately 250 employees at offices in Kearny Mesa, Escondido, the Imperial Valley and Sacramento.

New general manager brings leadership, vision, collaborative approach

“Sandy brings an ideal mix of leadership, experience and vision to guide the Water Authority into a new decade as the agency seeks innovative solutions that benefit San Diego County and the Southwest,” said Water Authority Board Chair Jim Madaffer. “Her creativity and collaborative approach ushers in a new era of partnerships and progress that has marked her work over the past eight months.”

As acting general manager, Kerl has initiated increased engagement with the Water Authority’s 24 member agencies. She has taken a similar approach with staff, issuing the first agency-wide employee survey to help identify areas of improvement. Kerl has more than 25 years of progressively responsible experience in all aspects of municipal management, including the past decade at the Water Authority.

New era begins with Sandy Kerl as new general manager of the San Diego County Water Authority

Sandy Kerl was appointed as general manager of the San Diego County Water Authority by the Authority’s Board of Directors Nov. 21 during its regular monthly meeting. (L-to-R) San Diego County Water Authority Board Chair Jim Madaffer, General Manager Sandy Kerl, Board Secretary Christy Guerin, Board Vice Chair Gary Croucher. Photo: Water Authority

Critical work ahead to meet challenges

“I’m honored to lead an innovative, forward-thinking organization with a talented staff that continually develops creative, pioneering solutions for improving our operations and service to our 24 member agencies and their ratepayers,” said Kerl.

“We’ve made great progress diversifying our water supply portfolio to sustain our thriving regional economy, but we have critical work ahead to ensure reliability in the face of climate change and other factors,” she said. “Increasing partnerships, maintaining efficient operations and ensuring fiscal sustainability will help us meet future challenges while benefitting the region’s ratepayers.”

L to R: Water Authority Deputy General Manager Sandra Kerl, Poseidon Water CEO Carlos Riva, and former Senator Barbara Boxer share a toast at Thursday's third anniversary event at the Carlsbad desalination plant. Photo: Water Authority

L to R: Water Authority General Manager Sandra Kerl, Poseidon Water CEO Carlos Riva, and former U.S. Senator Barbara Boxer share a toast on December 13, 2018 at the Carlsbad Desalination Plant in celebration of the plant’s third anniversary. Photo: Water Authority

Kerl helped secure financing for Carlsbad Desalination Plant

During her years at the Water Authority, Kerl played a pivotal role in securing financing for the nation’s largest seawater desalination plant, which started commercial operations in Carlsbad in 2015 and produces approximately 50 million gallons of water a day for the San Diego region.

Before joining the Water Authority as deputy general manager in November 2009, Kerl served as city manager of La Mesa. She received her Bachelor of Political Science from California Polytechnic State University at San Luis Obispo and her Master of Business Administration from the University of Redlands.

The Water Authority hired an executive search firm to manage the recruitment and selection process. During the nationwide search, thirty-two applications were received, and six candidates interviewed by a panel of civic, business, and community stakeholders. The process included a vetting of finalists by the Water Authority’s 36-member Board of Directors, representing 24 member agencies across San Diego County.

“We applaud the Water Authority for including public input during the recruitment and hiring process for this key position in our community,” said Haney Hong, president and CEO of the San Diego County Taxpayers Association. “Giving stakeholders a voice in hiring Sandy Kerl is another example of the transparency and collaboration we look forward to as she leads the agency.”

Yorkshire Water Launches World’s First Poo-Powered Pub

/in , , /by /Water & Wastewater Treatment (England)by Alec Peachey

In what will be the first time a public space has been powered by electricity made from poo, The Number Two Tavern is launching for a limited time in The Light, Leeds from 7th until 9th November.

The company is holding its first ever carbon week to spread the word and share knowledge about how we can all reduce our carbon footprint.

The power for The Number Two Tavern is coming from a ground-breaking process, called “anaerobic digestion,” which converts waste into biogas that can be used to generate heat and electricity. Yorkshire Water has charged a Hybrid Power battery with the poo-power, which is being created at Yorkshire Water’s Knostrop Recycling Centre.

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Chula Vista fifth graders enjoy their first visit to the new Hydro Station educational facility. Photo: Sweetwater Authority

New Educational Hydro Station Project Opens in Chula Vista

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The first Hydro Station in California opened August 15 in Chula Vista.

The interactive educational space is a joint partnership between the Sweetwater Authority, Otay Water District, and the Chula Vista Elementary School District.

The Hydro Station, at the Richard A. Reynolds Groundwater Desalination Facility, features learning exhibits and hands-on activities to introduce fifth grade students to the ecological cycle of water, water conservation, water quality, and careers in the water industry.

More than 4,000 students are expected to visit the Hydro Station annually.

Making the world ‘a better place’

“The Hydro Station introduces our students to the world of work in the water industry and inspires them at an early age to consider careers in science, technology, engineering, art, and mathematics,” said CVESD Superintendent Dr. Francisco Escobedo. “With this station, we expose students to careers that can change the trajectory of entire families, opening the door to high-wage careers that our students might not have thought were possible.

“The students also explore ways to make the world a better place through clean water, and water conservation,” added Escobedo.

Students drink in details about water conservation at the opening of the Hydro Station in Chula Vista. Photo: Sweetwater Authority

Students drink in details about water conservation at the opening of the Hydro Station in Chula Vista. Photo: Sweetwater Authority

New generation encouraged to consider careers as water industry professionals

More than 2,800 people work in the water and wastewater sector at the San Diego County Water Authority and its 24 member agencies. One-third of these industry professionals will be eligible for retirement in the next few years.

“It’s an opportunity for a new generation to join us in our mission to deliver safe and reliable water to hundreds and thousands of people in communities that rely on us as water professionals,” said Tish Berge, Sweetwater Authority general manager.

As part of the Hydro Station experience, students will have three dedicated days focused on career opportunities in Information and Communication Technologies, Clean Energy, and the Blue Economy. They will learn how their strengths, interests, and values may align with career options. Hands-on activities will also help them make connections to specific careers.

Hydro Station mission is about education and conservation

“I have served many years in the water industry, which has allowed me to experience the evolving industry climate firsthand,” said Mark Watton, Otay Water District general manager. “The high level of retirements, new technologies, and increased demand for safe drinking water all contribute to the availability of good, stable careers and employment.”

“We want to make sure that a rewarding career in the water and wastewater industry is within reach for as many local students as possible who are vocational or college bound, and the Hydro Station helps us do that,” he added.

Visitors to the new Hydro Station's grand opening mark the occasion with a selfie. Photo: Sweetwater Authority

Visitors to the new Hydro Station’s grand opening mark the occasion with a selfie. Photo: Sweetwater Authority

The Hydro Station’s location is ideal to educate students on how their strengths, interests, and values can connect with careers in the water industry while presenting opportunities to solve real-world problems through the Engineering Design Process. It will also serve to educate children and their families, as well as the community, on the thoughtful use of water resources.

Pipeline relining is an efficient technique that extends the lifespan of pipes while minimizing costs and impacts to nearby communities. Photo: Water Authority

Innovative Pipeline 5 Relining Completed

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San Diego County Water Authority crews completed relining a segment of Pipeline 5 in Fallbrook and San Marcos in late July, reaching a milestone in a strategic, multi-decade pipeline relining program. The 2.3-mile segment of Pipeline 5 was relined with new steel liners that are planned to last for more than 75 years.

The proactive pipeline relining program is a crucial part of asset management efforts that improve the reliability of San Diego County’s water supplies.

30-year pipeline relining program

Since the relining program began in 1991, nearly 47 miles of pre-stressed concrete cylinder pipe have been rehabilitated. This constitutes more than half of the total PCCP in the Water Authority system. The remaining 35 miles are expected to be rehabilitated by 2027.

The Pipeline 5 project was conducted in eight segments to minimize impacts to the nearby communities of Fallbrook and San Marcos.

Proactive measures to protect infrastructure

Pipeline relining is an efficient technique used on long stretches of pipelines. It involves inserting new steel liners into the existing pipes. The new liners can extend the lifespan of the pipe by several decades.

“Relining our existing pipes is quicker and more cost-effective than excavating, removing and replacing an entire pipeline,” said Gary Olvera, senior construction manager at the Water Authority. “In partnership with our member agencies, the Water Authority has developed an efficient and proactive plan to ensure continued water supply reliability for the entire region.”

New steel liners can extend the lifespan of a pipe by several decades. Photo: Water Authority

New steel liners can extend the lifespan of a pipe by several decades. Photo: Water Authority

Innovative technique to minimize impacts

To access Pipeline 5, crews excavated dirt to create eight 25-foot by 60-foot access portals spaced roughly 525 to 2,500 feet apart. During construction, crews eliminated two of the originally planned portals, helping save more than $217,000. Most of the work was then performed underground, inside the pipe.

Once the new liner was installed, the joints were welded together. Then, each new steel liner was coated with a cement mortar lining. Finally, the portals were backfilled, the pipeline was disinfected, and the pipe was put back into service.

A welder works inside the pipe to connect the new joints. Photo: Water Authority

A welder works inside the pipe to connect the new joints. Photo: Water Authority

Maintaining regional water supply reliability

Large-diameter pipelines operated by the Water Authority and its 24 member agencies extend approximately 310 miles to convey water throughout San Diego County.

Approximately 82 miles of the pipelines are pre-stressed concrete cylinder pipes. These types of pipes were installed between the early 1960s and late 1980s and some are nearing the end of their service life.

By relining the pipes ahead of time or conducting timely repairs with the latest technology, the Water Authority and its member agencies avoid pipeline failures and improve the reliability of future water supplies.

Sweetwater Authority Utility Worker II Julio Salazar's innovative new tool won recognition from the Association of California Water Agencies. Photo: Sweetwater Authority Sweetwater Authority employee

Award-Winning, Time-Saving Tool Created by Sweetwater Authority Employee

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For his initiative in designing and creating a new tool designed to improve safety and efficiency on the job, Sweetwater Authority employee Julio Salazar won the Association of California Water Agencies Joint Powers Insurance Authority  H.R. LaBounty Safety Award.

The award recognized Salazar for creating a ‘Large AMS Stabilizing Tool.’ Salazar’s design resulted in making the process of replacing 1.5 inch and two inch angle meter stops, or AMS, easier, more ergonomic, and safer.

“Our water professionals are industry leaders, finding new ways to work smarter and safer,” said Tish Berge, general manager. “Sweetwater Authority could not be more proud of Julio’s tool and much deserved recognition.”

The H.R. LaBounty Safety Award recognizes water industry employees who implement significant safety improvements to prevent occupational injuries/illness. Winners are recognized twice a year.

See a demonstration of the new award-winning tool.

Salazar, a Utility Worker II with Sweetwater, came up with the idea after talking with co-workers about ways to improve the process. In the past, replacing an AMS often required employees to break out the meter box in order to make enough space to fit large wrenches and tools.

The process was often awkward and difficult, adding strain on the employee who had to remove the AMS at an odd angle. The concrete panel would also need to be replaced, adding to the time, cost, and safety risk associated with the replacement.

The new tool is designed to secure the AMS using meter bolts, and can be placed in-line with the service lateral. Once secured, an employee can simply use an adjustable wrench to loosen or tighten the bottom nut on the AMS. It eliminates the need to break the meter box, and gives the employee a more comfortable, ergonomic grip while working. It also makes the process safer.

Salazar says the design is similar to existing stabilizing tools, but there was nothing quite the right size for the 1.5 inch and 2 inch AMS – until now.

Water industry professionals recognized for safety improvements

Sweetwater Authority Utility Worker II Julio Salazar displays his H.R. LaBounty Safety Award Sweetwater Authority employeerecognition certificate from the Association of California Water Agencies. Photo: Sweetwater Authority

Sweetwater Authority Utility Worker II Julio Salazar displays his H.R. LaBounty Safety Award recognition certificate from the Association of California Water Agencies. Photo: Sweetwater Authority

The Association of California Water Agencies Joint Powers Insurance Authority – ACWA JPIA for short – is a partnership of water agencies dedicated to avoiding the high cost of commercial insurance. JPIA is a risk-sharing pool for property, liability, workers’ compensation and employee benefits, which allows for more rate stability for customers, broader coverage and expanded benefits and services than private insurance.

READ MORE: Proactive Partnerships Keep Pipelines In Top Shape

 

Escondido Water Employee Wins Award For Invention

/in , , /by /The Daily Times-Advocate (Escondido, Calif.) Mentioned: San Diego County Water Authority

Escondido Water employee Joseph Lucero won an award from the California Water Environmental Association for his innovative device that  improved efficiencies and safety at the City of Escondido’s Hale Avenue Resource Recovery Facility. City of Escondido Plant Maintenance Technician Joseph Lucero won third place in the “Gimmicks/Gadgets” category in the 2019 California Water Environmental Association Awards competition. His innovative safety device turns a difficult two-person job working on wastewater pumps into a safer process one person can complete alone.

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Escondido Plant Maintenance Technician Joseph Lucero won third place in the 2019 California Water Environmental Association Awards for his safety device.

Innovation Improves Safety, Wins Award for Escondido Wastewater Technician

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An Escondido water employee’s ingenuity improved safety at a city treatment plant and won a statewide water industry award.

City of Escondido Plant Maintenance Technician Joseph Lucero won third place in the “Gimmicks/Gadgets” category in the 2019 California Water Environmental Association Awards competition. His innovative safety device turns a difficult two-person job working on wastewater pumps into a safer process one person can complete alone.

Lucero, a 20-year veteran in the water and wastewater industry, recently transferred to his current assignment at the city’s Hale Avenue Resource Recovery Facility (HARRF), a secondary treatment facility which can treat a flow of 18 million gallons per day for the City of Escondido and the Rancho Bernardo area of San Diego.

“When I transferred and started working on the grit pumps, I understood why it was among the least favorite jobs to do,” said Lucero.

Brainstorming creates innovative approach

The bulky cover originally required two men in tight quarters to move safety. Lucero's device allows it to be removed and replaced safely by one person. Photo: Courtesy John Del Fante

The bulky cover originally required two men in tight quarters to move safety. Lucero’s device allows it to be removed and replaced safely by one person. Photo: Courtesy John Del Fante, CIty of Escondido

Workers found it difficult to maneuver the heavy, bulky cover over the rotor assembly of the pump. Two people were needed to muscle the cover in tight quarters, and it carried a risk of back strain.

Lucero says he started to brainstorm, tapping his water industry experience.

“I was determined to come up with a device or a technique to eliminate the back fatigue, reduce time, and increase safety,” he said.

Without an existing device or specialty tool available to perform necessary maintenance or repairs, it meant Lucero had to design and fabricate something brand new.

Team effort results in improved safety

Lucero worked on the project during his off-hours.

He first designed the cover device on paper from an original concept, and then made a cardboard sample to produce a mock-up he could work with for placement, fit, and accuracy. A prototype was created which consisted of a bracket, a height adjustment all thread, chain sling device, and the pump cover attachment plates.

After testing the design, Lucero says he received key help from Raul Adame, a Plant Systems Technician at HARRF. Adame fabricated alignment tabs at his machine shop at home to help improve the device.

Lucero always believed in his innovative tool, but said it worked even better than he expected.

New device saves time and costs

“It was an immediate hit with those that work on the grit pumps,” Lucero said. “It saves time, money, and more importantly creates a safer work environment.”

Lucero’s innovative creation is used by all personnel when performing predicative maintenance and repairs on the grit pumps.

“The device turned a two-person job into a one-person job,” said John Del Fante, operations superintendent at the facility. “This device allows an individual to support the full weight of the pump cover, clean the interior easily, and reinstall. It used to take two people to muscle this piece in and out of place.”

For Lucero, winning his award for innovation was an unexpected and welcome surprise.

Plant System Technician Jason Blacksher, a co-worker Lucero calls “my biggest supporter in designing the device,” submitted the CWEA award nomination.

“We are going through a safety culture change at HARRF and it’s working,” said Lucero. “I am surrounded by talented, knowledgeable and innovative co-workers. I learn from them every day as we grow as a team on the path to a safety conscious and innovative culture.”