Tag Archive for: City of Escondido

Maybe the old Lake Wohlford Dam Isn’t so bad, After All?

/in , , /by /The San Diego Union-Tribune by J. Harry Jones

Plans to replace the Lake Wohlford dam are now on hold as Escondido investigates other, less expensive options because the projected cost of the project has escalated to more than $50 million.

It was nearly 13 years ago when state inspectors determined that the top quarter of the dam might liquefy in the event of a major earthquake and potentially flood eastern Escondido.

Right away, Escondido utility workers lowered the water level of the lake so that only the bottom three-quarters of the dam would be needed to hold back water. The amount of water stored in the lake was reduced by about half.

Full Story

New Inspection Tool Aids Vallecitos Pipeline Assessments

/in , /by /Water News Network

A new pipeline inspection tool being used by contractors working for the Vallecitos Water District to determine pipeline integrity could become a standard tool saving time and money.

After nearly completing construction in 2008, developers walked away from the 500-acre High Point subdivision in the City of Escondido. Water facilities installed for the subdivision were left unused for ten years.

Full Story
The 12-inch SeeSnake inspection tool used by the Vallecitos Water District is designed to provide accurate pipeline assessments. Photo: Vallecitos Water District

New Inspection Tool Aids Vallecitos Pipeline Assessments

/in , /by

A new pipeline inspection tool being used by contractors working for the Vallecitos Water District to determine pipeline integrity could become a standard tool saving time and money.

After nearly completing construction in 2008, developers walked away from the 500-acre High Point subdivision in the City of Escondido. Water facilities installed for the subdivision were left unused for ten years.

Two developers CalWest and TrueLife Communities recently decided to complete the project. They approached Vallecitos to determine what is needed to complete water service.

The mains for the project, made of ductile iron pipe, had not been used for ten years. Vallecitos needed to determine the condition of the pipes. Infrastructure Engineering Corporation and subcontractor PICA Corporation are now testing and assessing the integrity of the water main including the pipeline appurtenance (blow-offs, air vacs, and fire hydrants) connections to the main pipeline.

Early damage detection prevents pipeline failures

Pipelines undergoing assessment to determine their condition before being put into service in the Vallecitos Water District. Photo: Vallecitos Water District

A pipeline’s condition is assessed to determine its condition before being put into service in the Vallecitos Water District. Photo: Vallecitos Water District

Several processes are included in the High Point Pipeline Assessment project. Crews insert a tool developed by PICA Corporation called a “SeeSnake” into the pipeline, and data indicates the condition of the pipes. The SeeSnake uses an electromagnetic method on iron pipes, which can “see” past cement mortar, epoxy, or polyethylene lining to detect and size any corrosion damage to the iron structure of the pipe itself.

The SeeSnake tool is pulled through the pipe at 17 feet per minute, delivering data as the inspection is being performed in real-time. The technology helps expedite information, saving time and costs by accelerating the process without sacrificing attention to detail. Vallecitos is then able to assess the pipeline’s wall thickness, potential iron loss, and any other anomalies to determine the condition of the existing pipeline.

See video demonstrating the SeeSnake pipeline assessment.

“Good decisions start with good information,” said Kris Embry, PICA regional manager. “Our ultimate goal in testing this new system is to quickly and efficiently secure accurate condition assessment information, allowing the Vallecitos Water District to address any weak links and prevent potential pipeline failures long before they happen.”

When the inspection is completed, the repair process begins.

Two water pipelines are being inspected for the condition analysis, one running along Woodland Heights Glen starting at Briar Patch Glen, and one running along Elderwood Glen, totaling approximately 3,067 feet. The larger 2,300 feet section of pipe is near the District’s existing Palos Vista.

Preventive measures save water and costs

Over time, pipelines are exposed to corrosion from aggressive soils, electrical currents, damage to coatings or linings, physical force, or other factors. Photo: Vallecitos Water District

Over time, pipelines are exposed to corrosion from aggressive soils, electrical currents, damage to coatings or linings, physical force, or other factors. Photo: Vallecitos Water District

Over time, pipelines are exposed to corrosion from aggressive soils, electrical currents, damage to coatings or linings, physical force, or other factors. The result could be a pipeline break which could case other infrastructure damage, interruption to water service, a loss of water, or monetary losses.

When an inspection finds corrosion, the affected section of iron pipeline is isolated, removed, and replaced by PVC pipe. Because iron pipelines can be susceptible to corrosion from multiple causes, they are no longer installed in the Vallecitos Water District.

The inspection found two badly corroded areas of pipeline and excavations verified the accuracy of the data. The Vallecitos Water District continues testing the new process and the accuracy of the data to determine whether to adopt the new technology for future working pipeline assessments.

Laboratory Superintendent Nicki Branch (far left) and employees of the Escondido Water Quality Lab, one of only two certified labs in California under new standards. Photo: City of Escondido

Escondido Water Quality Lab Leads By Example

/in , /by

California’s 600 certified water quality testing labs will face strict new accreditation standards in the near future. While final hearings still need to take place on the draft regulations before adoption, the City of Escondido Water Quality Lab isn’t waiting. Escondido is working now to adopt the anticipated regulations.

Escondido is one of only two California labs already compliant with the draft regulations, which require more stringent quality controls.

The laboratory is certified by the California State Water Resources Control Board’s Environmental Laboratory Accreditation Program to conduct 155 different certified test methods to ensure Escondido water and wastewater safety, including reclaimed water samples, stormwater samples, drinking water samples, wastewater from various stages throughout the treatment process, and industrial wastewater collected from permitted industries.

As part of compliance with the new standards, Laboratory Technician Ken Brown was promoted to the lab's Quality Assurance Officer. Photo: City of Escondido

As part of compliance with the new standards, Laboratory Technician Ken Brown was promoted to the lab’s Quality Assurance Officer. Photo: City of Escondido

City of Escondido Laboratory Superintendent Nicki Branch supervises the 13-person lab staff. She said the decision was made to work toward Environmental Lab Accreditation Program compliance right away rather than wait for formal implementation.

“We thought, this regulation is coming,” said Branch. “It’s going to be the law. Let’s just go ahead and comply with it now. Each water quality laboratory has to be certified by the state. Adding the [proposed] standards adds more quality assurance and quality control procedures for everything you do in the lab.”

Improved reporting of water quality testing

Damien Wong (left) and Michelle Sohn at work in the Escondido Water Quality Lab. Photo: City of Escondido

Damien Wong (left) and Michelle Sohn at work in the Escondido Water Quality Lab. Photo: City of Escondido

Branch said the standards implement more rigorous reporting, not new processes.

“It takes what we are doing now and makes the data more defensible,” she said. “We can show the chain of custody and verify our procedures, from sampling to analyzing to reporting. The process protects the integrity of the data.”

The proposed new requirements are based on 2016 standards developed by The NELAC Institute, a nonprofit organization dedicated to promoting “the generation of environmental data of known and documented quality through an open, inclusive, and transparent process that is responsive to the needs of the community.”

Escondido staff share expertise with industry peers

Brett Kelley conducts a test in the City of Escondido Water Quality Lab. Photo: City of Escondido

Brett Kelley conducts a test in the City of Escondido Water Quality Lab. Photo: City of Escondido

Branch said it took a full year to implement the additional sampling and paperwork. Once the City of Escondido completed the process, she realized her team gained valuable insight other labs would need. She encouraged her staff to submit abstracts to speak on the proposed new regulations at the annual 2019 California Water Environment Association conference.

“We had five people speaking who had never made a presentation before,” said Branch. “I told them ‘You are now the experts.’”

Lab staff presentation at 2019 CWEA Tri-State Seminar

“We expect to give more presentations this year,” said Branch. “Labs will need to do this. We can help people, counsel them, and give them tips. People are apprehensive. It’s human nature. ‘No, not more regulation!’ But when you are a lab doing drinking water analysis, you want the lab to be that stringent and that accurate with quality assurance procedures.”

Personal pride in the achievement, improved teamwork, and sharing their new knowledge as subject matter experts were unexpected benefits.

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

/in , /by

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.”