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.
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.
In the coming weeks, the City of San Diego will begin emergency repairs on the Lake Hodges Dam at the Hodges Reservoir in Escondido outside of Rancho Santa Fe.
During a recent inspection, the city identified areas in the dam wall that require repair and need be sealed. In order to complete the work, the water level of the reservoir needs to be lowered by about 18 feet from its current level to an elevation of 275 feet.
The repair project is expected to continue for an estimated five months.
https://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.png00Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.pngMike Lee2022-05-03 10:10:442022-05-03 14:46:09Hodges Reservoir Will be Closed for Recreation During Five-Month Project
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.
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.
Patent for pipeline inspection system
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.
Innovation benefits water ratepayers
“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.”
The Water Authority operates and maintains a water delivery system capable of delivering more than 900 million gallons of water per day through 310 miles of large-diameter pipeline, 1,600 aqueduct-related structures, and approximately 100 metering/flow control facilities. It also includes a state-of-the-art water treatment plant, hydroelectric facilities, pump stations, flow regulatory structures, and reservoirs that store water for emergencies and dry years.
Video of “Scanny” In Use
New pipeline inspection tool part of high-tech toolkit
The Water Authority uses a combination of technologies for monitoring pipelines, including electromagnetic scanning, which detects and locates damaged areas within pipeline walls, and real-time acoustic fiber-optic monitoring, which can detect and locate distressed pipelines while they are in service. The technology invented by Coghill is just a small part of an expansive toolkit.
The Water Authority applied for the patent on June 13, 2019, and spent nearly three years completing the complex process. The patent assigns the intellectual property rights to the Water Authority, allowing it to freely use the technology and share it with other water utilities that might also benefit from its use.
The inspection tool uses commercially available lightweight adventure cameras and lights that are arranged in a unique way on a chassis that moves through pipelines that are 4 to 9 feet in diameter, said Coghill, who has worked for the agency since 2013.
The inspection tool uses commercially available lightweight adventure cameras and lights that are arranged in a unique way on a chassis that moves through pipelines that are 4 to 9 feet in diameter. Photo: San Diego County Water Authority
High-resolution imaging
“This technology was created in-house out of necessity to improve safety while inspecting steep portions of our aqueduct,” said Coghill. “The array of multiple cameras enables high-resolution imaging, and the unique design keeps the cameras oriented in the correct position relative to the pipe.”
Coghill, who affectionately calls the tool “Scanny,” said the camera array can also be added to any existing pipeline assessment equipment and offers much higher resolution than traditional CCTV. In addition to inspecting unsafe and inaccessible portions of pipelines, the tool’s design means the Water Authority no longer needs to use specialized third-party rope support crews to assist with pipe inspections. A bonus feature of the device is the ability to stitch the video files together for an immersive 360-degree virtual reality experience. He said it’s always fun to take people into the pipe by just putting on VR goggles.
The Water Authority will continue to use its patented technology to benefit water ratepayers and the safety of employees.
The complete patent is posted on the U.S Patent and Trademark Office website: https://bit.ly/3vGEk0I.
Construction of the new Flow Regulatory Structure II, or FRS II, in Mission Trails Regional Park is nearing completion. The structure is now completely enclosed on all sides and was successfully tested.
Construction crews have started placing soil around the exterior walls to begin burying the structure. In the next three weeks, the roof will be covered so the facility is concealed. Water is expected to begin flowing into FRS II in June 2022.
Mission Trails Regional Park project
The new structure, located in the northwest portion of Mission Trails Regional Park, is part of a San Diego County Water Authority project to upgrade the untreated water system that delivers water to treatment plants servicing the central and southern areas of the county, helping to balance the flow of untreated water. Once in operation, the FRS II will be capable of holding nearly five million gallons of water – enough water to fill seven Olympic-sized swimming pools.
Area will be restored with natural vegetation
Revegetation efforts will begin after FRS II is work is complete this fall. The topsoil was removed and stored onsite and will be returned help restore native plants and vegetation to pre-construction conditions.
Before the project began, 225 pounds of live seed was gathered from within Mission Trails Regional Park and taken to a dedicated nursery. From these seeds, more than 22,000 native plants are being grown and will be planted over a 17-acre area. Once planted, there will be a 120-day plant establishment period followed by five years of maintenance and monitoring to assure successful implementation.
Construction began in March 2020 just as the coronavirus pandemic began. As an essential infrastructure project, construction on the water project continued during the pandemic.
The Water Authority operates and maintains a regional water delivery system capable of delivering 900 million gallons of water per day.
https://www.waternewsnetwork.com/wp-content/uploads/2022/04/MissionTrails.4.18.2022-845x450-1.jpg450845Kristiene Gonghttps://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.pngKristiene Gong2022-05-02 16:35:252022-05-02 16:35:55New Water Tank in Mission Trails Nearly Complete and Will Soon Disappear
As part of continuing efforts to maintain and invest in City of San Diego infrastructure, repair work starts within the next two weeks on Hodges Dam, at the Hodges Reservoir north of Rancho Bernardo.
“It’s been over a century since Hodges Dam was constructed, and we are making significant investments to maintain this vital asset,” said Alia Khouri, Deputy Chief Operating Officer.
https://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.png00Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.pngMike Lee2022-04-27 09:27:242022-04-27 09:28:12Repair Work on Hodges Dam to Begin
In observance of growing drought conditions statewide, the Vallecitos Water District has declared new water conservation requirements for thousands of customers in San Diego County’s inland area under a Level 2 drought alert.
Mona Rios, a National City councilwoman for 12 years, told Voice of San Diego Tuesday that she won’t be seeking reelection. In fact, she said she’s departing politics altogether in part, to have more time to take care of her elderly parents.
“I think it’s time for me to allow other voices to be at the table,” Rios, 69, said.
https://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.png00Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.pngMike Lee2022-04-27 09:23:372022-04-27 09:28:52Mona Rios Is Leaving Politics. National City, Water Authority Are in for a Shake Up.
As part of continuing efforts to maintain and invest in City of San Diego infrastructure, repair work starts within the next two weeks on Hodges Dam, at the Hodges Reservoir north of Rancho Bernardo.
“It’s been over a century since Hodges Dam was constructed, and we are making significant investments to maintain this vital asset,” said Alia Khouri, Deputy Chief Operating Officer. “Projects like this one are crucial for the City’s aging infrastructure system in order to maintain the safe and efficient delivery of City services.”
During a recent inspection, staff identified areas in the dam wall that require repair and need to be sealed. To access these areas, the water level of the reservoir needs to be lowered by approximately 18 feet from its current level to an elevation of 275 feet. The reservoir may need to be lowered below 275 feet if additional areas needing repair are identified during the project. The repair project is expected to continue for an estimated five months.
Water transfers to maximize savings
The Hodges Dam, shown here in 1929, was built in 1918. Photo: UC San Diego
The primary function of Hodges Reservoir is to store water for potable use. The City is working with its regional water agency partners on a plan to draw down the reservoir level to maximize water savings. Most, if not all, of the water will be transferred to other reservoirs, while some water may be released into the San Dieguito River.
“The City of San Diego is committed to maintaining Hodges Dam to ensure the protection of our water resources and public enjoyment of the reservoir,” said Juan Guerreiro, Interim Director of the City’s Public Utilities Department. “We appreciate the public’s patience while we complete the project.”
To access areas of the Hodges Dam for repairs, the water level of the reservoir needs to be lowered by approximately 18 feet from its current level to an elevation of 275 feet. As a result of the lower water level, the Hodges Reservoir will be closed for recreation while the repair project is underway. Boating and fishing will still be available at other City of San Diego reservoirs. The San Dieguito River Park trails and facilities around Hodges Reservoir will not be impacted during the drawdown or dam construction work.
Operated and maintained by the San Diego Public Utilities Department, the reservoir currently serves the San Diego County Water Authority, San Dieguito Water District, and Santa Fe Irrigation District, and the City of San Diego. San Diego operates nine reservoirs, including Hodges.
(Editor’s note: The City of San Diego, San Dieguito Water District, and the Santa Fe Irrigation District are three of the San Diego County Water Authority’s 24 member agencies that deliver water across the metropolitan San Diego region.)
https://www.waternewsnetwork.com/wp-content/uploads/2022/04/2017-12-Aerial-LakeHodges-Reservoir.jpg5481030Gayle Falkenthalhttps://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.pngGayle Falkenthal2022-04-27 07:05:372022-04-27 07:20:47Repair Work on Hodges Dam to Begin
April 26, 2022 – “The Metropolitan Water District of Southern California’s Board of Directors today voted to implement a series of actions to address serious water shortages in parts of its service area that solely depend on the State Water Project. Those restrictions do not directly affect residents and businesses who receive water from the San Diego County Water Authority through their retail water provider because our region is not currently receiving water from the State Water Project.
“The San Diego region continues to have reliable water supplies for 2022 and beyond due to a long-term commitment to conservation and investments in a diversified water supply portfolio, including drought-resilient sources like the Claude “Bud” Lewis Carlsbad Desalination Plant. However, extreme drought conditions are felt widely across the West, and we strongly support agencies taking appropriate conservation actions where they are needed.
“The Water Authority’s Board of Directors has not enacted water-use mandates as we wait for the State Water Board’s direction and final emergency regulations in late May. In addition, Water Authority’s diversified supplies remain intact.
“We continue to support the Governor’s call for increased voluntary conservation at homes and businesses. We encourage actions such as taking shorter showers and fixing leaks immediately, along taking advantage of rebates for replacing turf with landscapes that are WaterSmart and climate-appropriate.”
— Sandra L. Kerl, General Manager, San Diego County Water Authority
https://www.waternewsnetwork.com/wp-content/uploads/2019/10/WA-Square-Logo.jpg200200Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.pngMike Lee2022-04-26 16:07:232022-04-26 16:07:23MWD’s Water-Use Mandates Don’t Impact San Diego Region
After weeks of work, I’m pleased to report that thanks to the improved relationship between the Metropolitan Water District of Southern California (MWD) and the San Diego County Water Authority, along with increased collaboration with other water agencies across Southern California, we helped reduce proposed rate increases to our wholesale water supplies by 7 percentage points over the next two years. This is good news for water ratepayers!
The bottom line is this: Instead of raising wholesale water costs by 17% over the next two years, MWD unanimously adopted consecutive 5% increases. This will allow MWD to cover increasing costs facing every sector of our economy, including our water industry, while limiting the impact on residents and businesses.
https://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.png00Mike Leehttps://www.waternewsnetwork.com/wp-content/uploads/2024/04/WNN-Horizontal-White-Blue2.pngMike Lee2022-04-22 09:44:262022-04-22 09:45:16Working Together on Water Affordability
