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California’s Water Works An Engineering Wonder That Made The Golden State What It Is Today

/in , /by /Oakdale Leader (Oakdale, Calif.)by Dennis Wyatt

California — without a doubt — has the most intricate and massive water storage and transfer system man has ever created. It is the largest, most productive, and most controversial water system in the world that harnesses nature using man’s ingenuity. At its northernmost reaches it captures the snow run-off of the Modoc Plateau — volcanic highlands in northeast California and southeast Oregon — that is drained by the Pit River, Snow blanketing the hills of the Modoc Plateau today will melt in the coming weeks and start a long journey in the form of water. The journey’s end for water — that makes it that far — are faucets and water taps in San Diego less than a mile from the border of Mexico.

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OPINION: Reject Latest Effort To Undermine Needed Local Water Projects

/in , /by /The Sun (San Bernardino, Calif.)by Steven Figueroa

Infrastructure projects that secure California’s future are being pursued every day in our great state. For better or worse, California is known to have the toughest environmental review laws in the nation with its CEQA framework that can impact these projects. CEQA has been roundly criticized over the years given the extent of its requirements and the legal challenges it allows — killing or delaying good projects that could create well-paying jobs and needed affordable resources for working families. In recent years, the Legislature, recognizing the impediment CEQA can be to needed infrastructure, has moved bills that try to reform CEQA or that grant exemptions from it.

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Water Resources Engineer Sami Sweis holds the Nautilus in his right hand and a foam ball in his left hand that the high-tech device is placed in before it is inserted into a water pipeline to scan for potential leaks. Photo: Water Authority

High-Tech Tools Help Detect Possible Pipeline Problems

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It’s a whole new ballgame for the San Diego County Water Authority when it comes to finding leaks in major pipelines with cutting-edge technology.

One new tech tool deployed for the first time in February actually looks like a tennis ball that floats through water-filled pipelines scanning for potential trouble.

Of course, the new device is much more complex inside than a tennis ball – in fact, the Nautilus is among the most advanced tools of its kind in the world.  It not only detects defects that are invisible to the human eye, it does so without requiring pipes to be drained, which saves a significant amount of water and disruption to customers.

Innovation Leader

The Nautilus is just the latest component of the Water Authority’s cutting-edge Asset Management Program that has been adopting and developing innovative tools for more than two decades. In fact, the Water Authority has been recognized by the American Water Works Association as a leader in the water industry for its focus on asset condition assessment, risk management, proactive pipeline replacement, and use of cutting-edge technology that saves ratepayers money.

“These high-tech tools are cost-effective and fit perfectly with our proactive approach to managing our infrastructure, including 310 miles of large diameter pipelines and 1,400 pipeline structures,” said Nathan Faber, an operations and maintenance manager with the Water Authority. “Our mission is to find potential failures in the system in advance, rather than react after a failure.”

‘Listening’ for leaks

The Nautilus uses acoustic feedback to detect leaks or abnormalities in active pipelines without causing any disruption to water service or supply, Faber said. About the size of a tennis ball, the Nautilus is placed inside a larger, sterilized foam ball, to float through operating pipelines.

For the First Aqueduct scan, 26 sensors, called synchronizers, were installed on various structures on the outside of the pipeline. Those sensors relayed information to the Nautilus as it floated between checkpoints. No leaks were discovered in the tested portions of the pipeline.

Digital Resolution

A scan from the LIDAR device shows precise and highly-accurate digital measurements that pinpoint pipeline problems. Photo: Water Authority

A scan from the LIDAR device shows precise and highly-accurate digital measurements that pinpoint pipeline problems. Photo: Water Authority

Leveraging new technology to gather data and pinpoint pipeline problems saves water and money.

“Responding or reacting after failures can cost up to six times the cost of proactive repairs,” Faber said.

He pointed to a recent pipeline repair project in La Mesa, where a Light Detection and Ranging device, or LIDAR, was used inside a pipe to provide highly-accurate digital measurements.

“The LIDAR took 1,600 measurements in five seconds,” Faber said. “The high-resolution images showed stressed pipe and verified cracking issues that allowed crews to make an efficient, proactive repair.”

 

View looking north of the First Aqueduct right of way in Valley Center. Photo: Water Authority

Historic Pipeline Project Boosts Long-Term Water Reliability

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San Diego County Water Authority crews successfully completed the first of three coordinated shutdowns of the First Aqueduct in early March to launch a major renovation of dozens of structures on two pipelines, including the historic Pipeline 1 that first delivered imported water to the region in 1947.

The series of shutdowns was carefully planned for nearly four years to minimize impacts on the community and retail water agencies during retrofits of Pipelines 1 and 2, which comprise the First Aqueduct.

“The First Aqueduct has been a very reliable source of imported water for more than 70 years,” said Chris Castaing, operations and maintenance manager at the Water Authority. “These critical upgrades will make sure we can operate and maintain the pipelines for another several decades to transport water to the region for future generations.”

Started during the Water Authority’s 75th anniversary year, the $30 million First Aqueduct structure and lining renovation project is among the most complicated pipeline retrofits in agency history.

During the next two years, upgrades include replacing the lining on the steel pipe sections; removing 19 associated structures; and retrofitting 41 structures – all without jeopardizing water service to the region.

Project will enhance reliability and flexibility of regional water system

Crews complete work on and seal the top of a bifurcation structure. Photo: Water Authority

Crews complete work on and seal the top of a bifurcation structure. Photo: Water Authority

Pipeline structures that will be rehabilitated include valves, blowoffs, pump wells and access ways.

Approximately 4 miles of failing pipeline lining on the steel pipe sections will be carefully removed and replaced with new cement mortar lining. Cement mortar is the preferred material, because it protects the interior of the steel pipe from corrosion and premature failure, has a longer life, and is easier to maintain. The project also will add redundant connections to six flow control facilities between the two pipelines, greatly improving the aqueduct’s operational flexibility.

During the first shutdown between February 24 and March 5, crews isolated sections of the pipeline and took them out of service so work can be safely performed on those sections throughout the year. In late 2019, a second 10-day shutdown will allow crews to switch flows to the upgraded sections of pipe and isolate other sections for repairs.

In addition to completing the First Aqueduct structure and lining renovation project, the Water Authority also will perform assessments of 27 miles of the pipeline to determine if additional upgrades will be needed.

Federal Legislators Announce $15Mil For Water Infrastructure Improvements At U.S.-Mexico Border

/in , /by /KUSI News

A group of federal legislators from San Diego announced the allocation of $15 million today for water infrastructure improvements along the U.S-Mexico border. Legislators included the funding in a spending bill approved earlier this week and signed today by President Donald Trump. The $15 million will go to the U.S. Environmental Protection Agency’s U.S.-Mexico Border Water Infrastructure program. Reps. Juan Vargas, D-San Diego, Scott Peters, D-San Diego, and Susan Davis, D-San Diego, as well as congressional representatives from border regions of New Mexico and Texas have sought funding for the program since last March.

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OPINION: Jerry Brown’s Four Biggest Incompletes

/in , /by /The San Diego Union-Tribune

As Gov. Jerry Brown leaves office amid high praise and some criticism, it’s impossible to give him anything but a grade of incomplete on several major issues. The most prominent of these is criminal justice reform, where Brown has sought huge changes to the overly punitive system he helped create in his first stint as governor. His decision to sign the Uniform Determinate Sentencing Act in 1976 was a major early step in an excessive war on crime that peaked in 1994 when California voters passed the nation’s harshest “three strikes and you’re out” law.

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San Diego Urged to Make Water Line Improvements Ahead of Future Earthquakes

/in , /by /10 News (San Diego)by Mark Saunders

San Diego City Council was recently warned about the damage an earthquake can cause to the region, specifically on the county’s water system. “Strengthen their water system, make that long-term investment,” seismologist Lucy Jones said of the city’s aging water infrastructure. Jones recently spoke with city council leaders about improvements she’s helped develop for Los Angeles’ infrastructure. “[It] contributes to a much more difficult time getting your city back up and running,” Jones said.

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Inland Valley Residents Encouraged to Conserve Water During Pipeline Repairs

/in , /by /Inland Valley Daily Bulletinby Liset Marquez

A scheduled shutdown of a pipeline supplying most of the water for Inland Valley cities has prompted officials to ask customers to limit their water use over a 10-day period. The Metropolitan Water District of Southern California is suspending water deliveries through its Rialto Pipeline from Monday, Dec. 3 to Wednesday, Dec. 12 to conduct scheduled maintenance on a portion of the pipeline, said Kirk Howie, chief administrative officer for Three Valleys Municipal Water District.

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America’s Water Infrastructure Act To Fund Up To $35 Million Towards West Basin’s Harbor South Bay Water Recycling Project

/in , /by /Los Angeles Sentinel

America’s Water Infrastructure Act, the comprehensive infrastructure legislation passed by Congress in the fall and signed by the president on Oct. 23, will allow West Basin Municipal Water District (West Basin) to access an additional $35 million in federal funding for its Harbor South Bay Water Recycling project. This major federal water infrastructure package includes a specific provision to allow West Basin to pursue significant funding through the Army Corps of Engineers to upgrade and increase capacity at the Edward C. Little Water Recycling Facility (ECLWRF) in El Segundo, Calif. S. 3021 includes provisions to double  the original project authorization from $35 million to $70 million, which will assist West Basin in ensuring that an adequate water supply for the Los Angeles region is met for current and future demands.

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Permit Delays Dam Up Hydro Projects, Relicensing Costs Millions

/in , /by /Bloomberg Environmentby Rebecca Kern

Alvin Thoma’s youngest son was born the year his employer, Pacific Gas & Electric Co., began the process of renewing the license for its Upper North Fork Feather River hydropower facility in northern California. His son is 19 years old now. The facility, however, is still undergoing relicensing. “For me, that’s a mental image of just how long it takes to go through this process,” Thoma, a director of power generation at PG&E, which runs one of the largest hydro systems in the country, told Bloomberg Environment.

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