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All Set for Carlsbad Dredging Project

Carlsbad beaches will soon have more sand as a result of the Agua Hedionda Lagoon dredging project – starting this February until mid April, informs the City of Carlsbad, California. The lagoon has been dredged every one to four years since 1954 as part of the Encina power plant operations. The last time the lagoon was dredged was three years ago, in 2018. Now that the Encina plant has been retired, Poseidon Water is taking over the dredging, as part of an agreement when the seawater desalination plant was built and came online in 2015.

Carlsbad Desalination Plant Celebrates 5th Anniversary

The Claude “Bud” Lewis Carlsbad Desalination Plant is celebrating its fifth year of operation this month. More than 65 billion gallons of water from the plant have provided a sustainable and reliable supply to businesses and residents of San Diego County since December 2015.

The Carlsbad Desalination Plant produces more than 50 million gallons of high-quality, locally controlled, water every day. It’s a foundational water supply for the San Diego region that minimizes the region’s vulnerability to drought or other water supply emergencies.

A firefighter prepares to access the Meadowlark Reclamation Facility as part of confined space training drills conducted with the Vallecitos Water District. Photo: Vallecitos Water District

Vallecitos Water District Recognized for Best Safety Practices

Vallecitos Water District was among 16 California water agencies honored by the Association of California Water Agencies Joint Powers Insurance Authority with the H.R. LaBounty Safety Award.

Vallecitos won its award for its Confined Space Rescue Training coordinated with several regional fire agencies in November 2019.

Vallecitos Water District wanted to heighten safety awareness and improve procedures in its confined space entry and rescue during real-world situations. It took on a high level of coordination to bring in fire department personnel to conduct 12 days of joint training.

Firefighters are briefed on scene at the Meadowlark Reclamation Facility as part of confined space training drills conducted with the Vallecitos Water District. Photo: Vallecitos Water District safety practices

Firefighters are briefed on scene at the Meadowlark Reclamation Facility as part of confined space training drills conducted with the Vallecitos Water District. Photo: Vallecitos Water District

As a result of training, personnel were able to reduce potential hazards conducting entry into confined spaces, perform personnel rescues, and better manage hazardous materials present (gaseous chlorine).

“Because of our program, Vallecitos Water District and fire department personnel were able to increase interoperability and familiarity of each others’ technical rescue equipment,” said Trisha Woolslayer, risk management supervisor.

Safety award promotes safe water workplace practices

Wastewater Treatment Plant Supervisor Dawn McDougle, Senior Wastewater Treatment Plant Operator Matt Wiese, Wastewater Treatment Plant Operators II Chris Deering, Ivan Murguia, Arturo Sanchez, and Marc Smith, Safety Technician Anette Longville, and Public Information Officer Alicia Yerman were recognized for their roles in organizing and conducting the training. All 13 members of the Vallecitos Water District Wastewater Collection System Crew participated in the training.

Fire department crews participating were from the cities of Carlsbad, San Marcos, Del Mar, Vista, Escondido, Oceanside, Encinitas, Solana Beach, Rancho Santa Fe, Valley Center, and crews from North County Fire (Fallbrook), San Pasqual, Rincon, and Camp Pendleton.

The H.R. LaBounty Safety Award Program is designed for all JPIA members as a way to promote safe workplace behavior and operations practices while rewarding those employees who demonstrate safe behavior, take part in recognizable proactive activities, or participate in risk-reducing actions. It gives members another way to foster a safety culture that reduces the potential for losses.

The Ramona Municipal Water District and the Sweetwater Authority were also recognized among state water agencies for their safety initiatives.

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New Fish-Friendly Seawater Intake Pumps at Carlsbad Desalination Plant

New fish-friendly seawater intake pumps recently commissioned  at the Carlsbad Desalination Plant are among the most environmentally advanced intake pumps in the world.

The three intake pumps, manufactured by Indar, are part of a broader effort to ensure the long-term health of the marine environment near the Claude “Bud” Lewis Carlsbad Desalination Plant, which sits on the shores of Agua Hedionda Lagoon.

Vallecitos Water District Crews Rehab Manhole, Protecting Environment

Vallecitos Water District crews sprang into action to repair and rehabilitate a manhole in danger of failing, successfully preventing a spill, which could have resulted in significant environmental damage.

Located just off Palomar Airport Road in a shared 30-foot easement with the Buena Sanitation District in Carlsbad, the manhole is part of a 30-inch outfall providing a main sewage drain for the City of San Marcos. The line feeds directly into the Encinas Wastewater Treatment plant a half-mile from the project site.

This temporary bridge allowed Vallecitos Water District crews to repair a manhole without affected sensitive habitat. Photo: Vallecitos Water District rehab manhole

Vallecitos Water District Crews Rehab Manhole, Protecting Environment  

Vallecitos Water District crews sprang into action to repair and rehabilitate a manhole in danger of failing, successfully preventing a spill, which could have resulted in significant environmental damage.

Located just off Palomar Airport Road in a shared 30-foot easement with the Buena Sanitation District in Carlsbad, the manhole is part of a 30-inch outfall providing a main sewage drain for the City of San Marcos. The line feeds directly into the Encina Wastewater Treatment plant a half-mile from the project site.

Originally constructed in the 1980s, turbulence generated by a hard right-turn along the sewer easement creates hydrogen sulfide gases. These gases corrode concrete and weakened the manhole over the years. Flooding also occurs in the area and allows rainfall to infiltrate the manhole.

Preventing harm to sensitive habitat areas

Vallecitos Water District staff became concerned the structure could fail. The result would be a major sewage spill affecting the nearby Encinas Creek Habitat Conservation Area, ultimately spilling into the Pacific Ocean a mile downstream. The Habitat Conservation Area is owned by the Center for Natural Lands Management, which supports its management through an endowment.

The Encinas Creek HCA is also part of the City of Carlsbad’s habitat management preserve. It includes riparian habitat and is known to be home to state and federally protected species. The Center for Natural Lands Management works to protect the property from trespassing, nonnative invasive plant and animal species, and other issues.

The District determined emergency repairs were required. Although the Vallecitos Water District has proper easement rights to access, operate, and maintain the pipeline, the agency must avoid any impact to the existing habitat while repairing the manhole. This required some creativity by the work crews.

Creative thinking provides access for repairs

A look at the newly repaired manhole. Photo: Vallecitos Water District

A look at the newly repaired manhole. Photo: Vallecitos Water District

The District kept all construction activities within its existing easement to avoid any impacts to existing riparian vegetation. Crews constructed a temporary bridge over an existing stream obstructing access to the manhole. The bridge installation was designed to be temporary, and not affect the existing stream with footings or other supports. Constructing the bridge for access turned out to be the most complex part of the repair project.

District crews working with a contractor team took advantage of the lower sewage flow during the early morning hours, starting work at 3 a.m. to get as low into the waterline as possible. Repairs like this take advantage of the low flows to keep critically important sewer systems in operation.

Instead of replacing the manhole, the District used a polymer concrete replacement product to build a new manhole within the old manhole. As a result, no excavation was needed. Unlike regular concrete, the new material is corrosion-proof and should provide District customers in San Marcos with many years of reliable service while protecting the environment.

Decades in the Making, Buena Vista Lagoon Restoration Plan Finally Approved

A long-sought compromise has been approved that will open the stagnant, reed-filled Buena Vista Lagoon to the sea and restore its native coastal marine habitat, but years of work remain before the transformation begins. Disagreements over whether the lagoon at the border of Carlsbad and Oceanside should remain freshwater or be restored to saltwater have stalled the project for decades.

Water Utility Hero of the Week: George Crabbe, City of Carlsbad

This feature highlights water utility employees in the San Diego region working during the coronavirus pandemic to ensure a safe, reliable and plentiful water supply. The water industry is among the sectors that are classified as essential. City of Carlsbad Utility Worker II George Crabbe in the Water Utility Hero of the Week.

Water Utility Hero of the Week-George Crabbe-City of Carlsbad-primary

Water Utility Hero of the Week: George Crabbe, City of Carlsbad

This feature highlights water utility employees in the San Diego region working during the coronavirus pandemic to ensure a safe, reliable and plentiful water supply. The water industry is among the sectors that are classified as essential.

Water Utility Hero of the Week: George Crabbe

Job/Agency: City of Carlsbad Utility Worker II

How did you become interested in working in the water industry?

I became interested in working in the water industry a few years back when I got into the Local 89 Laborers Union as an apprentice and landed different jobs.  The jobs just so happened to be underground water utility installations.  I loved it, but I started thinking long-term and with the support of my family and friends, the pieces fell into place.  Four years later, I am here at the Carlsbad Municipal Water District.

How has your job changed during the pandemic?

Our job in the field hasn’t changed.  I am very fortunate and thankful to still be working during this pandemic.  Our water operators must continue providing safe reliable drinking water and our departments must ensure that the water is delivered with little to no interruption.  The one change in the workplace is abiding to the social distancing requirements and the new norm of wearing masks.  This has been quite an adjustment since we work in groups while doing our preventative maintenance and water service/water main breaks repairs.

How are you keeping safe?

We are keeping safe by following all the requirements for social distancing.  We wear masks and gloves, wipe down our trucks, equipment and office spaces, and we make sure to wash our hands and use hand sanitizer frequently.

What are you most looking forward to after the crisis ends?

I am looking forward to all the state parks and trails opening and being able to go out and enjoy time with my family and friends.  I am looking forward to people being able to go back to work and life going back to normal.

Editor’s note: The Water Utility Hero of the Week highlights essential work performed during the COVID-19 pandemic by employees of the San Diego County Water Authority’s 24 member agencies.

San Diego County Water Authority Member Agency Map

Carlsbad Supports Modified Plan to Restore Buena Vista Lagoon

A hard-fought compromise on the saltwater restoration of the Buena Vista Lagoon won the enthusiastic support of the Carlsbad City Council last week.

The agreement between property owners, nonprofits and multiple governmental agencies outlines a plan to remove the weir, or low wooden dam at the mouth of the lagoon, and excavate the entire 220-acre preserve to restore tidal flushing.

Silt has been steadily filling the lagoon since the weir was built in the 1970s, and in the last 30 years about 62 acres of the formerly open water has been filled by cattails and reeds. Without intervention, the lagoon would continue to fill with sediment and vegetation until it eventually disappears.