Tag Archive for: Water Infrastructure

California’s Aging Dams Face New Perils, 50 Years After Sylmar Quake Crisis

/in , /by /Los Angeles Timesby Louis Sahagún

It was a harrowing vision of the vulnerability of aging California dams — crews laboring feverishly to sandbag and drain the lower San Fernando Reservoir, as billions of gallons of Los Angeles drinking water lapped at the edge of a crumbling, earthquake-damaged embankment that threatened catastrophe on the neighborhoods below. Although the 1971 San Fernando earthquake and the near failure of the Lower Van Norman Dam have given rise to construction improvements — the much newer Los Angeles Dam survived an equivalent shaking in the 1994 Northridge quake — the overwhelming majority of California dams are decades past their design life span.

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Water Plant Cyberattack Is Wake Up Call, 20 Years in the Making

/in , , /by /Bloomberg Lawby Jake Holland and Bobby Magill

A cyberattack on a Florida water treatment plant underscores the need for strong security protections at the municipal level, attorneys and industry professionals say.

A hacker gained access to an Oldsmar, Fla. city computer on Feb. 5 and changed the level of sodium hydroxide, also known as lye, local authorities said. It isn’t yet known whether the breach originated from the U.S. or from outside the country. The Federal Bureau of Investigation is working with local authorities.

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Hack Exposes Vulnerability of Cash-Strapped US Water Plants

/in , /by /AP Newsby Frank Bajak, Alan Suderman and Tamara Lush

A hacker’s botched attempt to poison the water supply of a small Florida city is raising alarms about just how vulnerable the nation’s water systems may be to attacks by more sophisticated intruders. Treatment plants are typically cash-strapped, and lack the cybersecurity depth of the power grid and nuclear plants.

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City of Oceanside-Pure Water Oceanside-water recycling

Pure Water Oceanside Project Reaches Milestones

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Pure Water Oceanside construction remains on schedule for completion in 2022, with several significant milestones recently completed. The Oceanside project will purify recycled water to create a new, local source of high-quality drinking water that is safe, drought-proof and environmentally sound.

“Construction has impacted many residents and businesses,” said Cari Dale, City of Oceanside water utilities director. “Please know the City of Oceanside appreciates your patience. We thank people for understanding the need for this project and bearing with us during these months of construction impacts. This work is temporary, but the benefits will last for generations.”

Pure Water Oceanside Project foundation walls in place

Now under construction, Pure Water Oceanside will purify recycled water to create a new, local source of high-quality drinking water that is clean, safe, drought-proof and environmentally sound. Photo: Jeremy Kemp, City of Oceanside

Now under construction, the project will purify recycled water to create a new, local source of high-quality drinking water that is safe, drought-proof and environmentally sound. Photo: Jeremy Kemp/City of Oceanside

The foundational work on the facility located in the San Luis Rey Water Reclamation Facility is complete. Pipelines, electrical conduits, equipment pads/pedestals, and wet wells have been constructed. Prefabricated walls have been installed. Installing the roof and additional wall stabilizing are next on the schedule.

The water purification equipment including pumps, membrane filters, and reverse osmosis canisters are currently being manufactured. Delivery is anticipated between this summer and fall.

Coco Farms Drive and Fireside Park construction update

Work on the south side of Coco Palms Drive near the El Camino Real intersection begins this month. Parking in the area will be closed during this work period with "no parking" signs posted. Map: City of Oceanside

Work on the south side of Coco Palms Drive near the El Camino Real intersection begins this month. Parking in the area will be closed during this work period with “no parking” signs posted. Graphic: City of Oceanside

The two injection wells on Coco Palms Drive are complete. Sound walls will be removed. Construction on two planned monitoring wells is anticipated to begin within the next two months. Sound walls will be installed prior to extended hours construction into evenings and weekends to reduce the impact on the community.

Coco Palms Drive will continue to be closed for the next few months while pipeline construction is underway.

Work on the south side of Coco Palms Drive near the El Camino Real intersection begins this month. Parking in the area will be closed during this work period with “no parking” signs posted.

Monitoring well work in Fireside Park will take place primarily during the daytime, with possible evening and weekend work for critical activities. Sound walls will be installed to reduce noise. Drilling and development is estimated to take six weeks.

El Camino Real recycled water expansion pipeline work coming soon

An overhead look at pipeline installation along Douglas Drive in Oceanside for Pure Water Oceanside project. Photo: Jeremy Kemp, City of Oceanside

An overhead look at pipeline installation along Douglas Drive in Oceanside for Pure Water Oceanside. Photo: Jeremy Kemp/City of Oceanside

Pipeline installation work will begin soon to install recycled water pipelines under El Camino Real. Traffic delays are expected and alternative routes are suggested.

Cones will be set up in work zones to redirect traffic from closed lanes and flagger workers will help drivers safely navigate intersections. Regular working hours will be Monday through Friday, 7 a.m. to 5 p.m. with occasional work on Saturdays.

Work at the Mission Avenue and El Camino Real intersection will be at night to reduce commuter traffic impacts. Work hours will be from 8 p.m. to 4 a.m.

Oceanside Project benefits both residents and environment

Construction personnel guide reverse osmosis skids into place. Photo: Jeremy Kemp, City of Oceanside

Construction personnel guide reverse osmosis skids into place. Photo: Jeremy Kemp/City of Oceanside

Approximately 90% of Oceanside’s drinking water is imported. Pure Water Oceanside will create three to five million gallons of drinking water each day, enough water to provide 32% of the City of Oceanside’s water supply.

The water purification process uses reverse osmosis and advanced oxidation to create safe drinking water. The technology removes pharmaceuticals, chemicals, hormones, microplastics, and personal care products.

The project protects sensitive ecosystems by reducing the amount of water siphoned by imported water sources. It decreases the amount of recycled water discharged into the ocean, and uses half the energy needed to transport imported water, reducing greenhouse gas emissions.

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.

San Diego’s Infrastructure Deficit Is Really a Stormwater Deficit

/in , , /by /Voice of San Diego by Andrew Keatts

The infrastructure deficit that has hung over San Diego politics for years without meaningful intervention is perhaps better understood as a stormwater deficit.

Eight years ago, Mayor Todd Gloria, then Council president, pledged to craft an infrastructure-focused ballot measure for the 2016 ballot, to address the city’s crumbling roads, sidewalks, pipes and drains. That never happened, and the problem has only gotten worse. But the city now appears to be serious about pursing a measure to fund a specific, and massive, piece of the city’s infrastructure failure: its stormwater system.

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Hetch Hetchy Water & Power Plans Five-Year $140M Mountain Tunnel Project

/in , /by /The Union Democrat (Sonora, Calif.)by Guy McCarthy

The City and County of San Francisco and the San Francisco Public Utilities Commission are planning a five-year $140 million project beginning next year to repair, rehabilitate and upgrade the 19-mile-long Mountain Tunnel, a key component of the Hetch Hetchy Water System that takes water from Tuolumne County and sends it to San Francisco.

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Opinion: Water Infrastructure — The Unmet Needs of Low-Income Communities

/in , , /by /The Hillby David Coursen

To meet the promise of its day one executive order on Racial Equity and Support for Underserved Communities, the Biden administration needs to provide low-income communities, communities of color and Indigenous people the same access to clean and safe water that the rest of our nation takes for granted. Biden’s COVID-19 relief plan makes a down payment on that promise by funding improved access to clean water for the overburdened communities of Indian Country.

 

 

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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.

San Diego Exploring 2022 Ballot Measure to Pay for Growing Flood-Prevention, Stormwater Needs

/in , /by /The San Diego Union-Tribuneby David Garrick

San Diegans may face new taxes or fee increases to upgrade the city’s increasingly unreliable flood-prevention infrastructure, which needs an estimated $1.5 billion in repairs and modernization efforts during the next five years.

City officials announced this week they are exploring a possible November 2022 ballot measure that would boost funding for flood prevention with either new parcel taxes, property-related fees, special assessment taxes or other options.

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Water Board Approves $11.4 Million Contract for Reservoir Project

/in , , /by /Times of San Diegoby City News Service Quoted: San Diego County Water Authority

The San Diego County Water Authority’s Board of Directors approved an $11.4 million construction project to improve drinking water supply reliability in North County Thursday.

The Hauck Mesa Storage Reservoir project will begin in February. It includes demolition of an abandoned steel tank, building a 2.1 million-gallon storage reservoir connected to the Valley Center Pipeline, and construction of an isolation vault and an underground flow-control facility.

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