The Sweetwater Authority Governing Board approved the budget for fiscal year 2020-21 at its June 24, 2020 meeting. The budget does not increase water rates for customers and reflects more than $13M in reductions over last fiscal year. To achieve these savings, the Board worked closely with Authority staff to produce a balanced budget that minimizes the financial impact to customers.
As a result of the coronavirus pandemic, public agencies have found creative solutions to holding meetings in compliance with the State of California’s meeting laws. Recently, Fallbrook Public Utility District board members stepped away from their video screens, using the opportunity to take a field trip to view a new project while conducting a traveling board meeting.
The Santa Margarita River Conjunctive Use Project is a joint project with Marine Corps Base Camp Pendleton, and will eventually supply about 30% of the District’s water, and virtually all of Camp Pendleton’s water.
Construction of the first section of pipeline on Merida Drive is part of the Santa Margarita River Conjunctive Use Project. This segment of pipeline between Alturas and Mission roads is about 4,500 linear feet and is 35% installed. Photo: Fallbrook Public Utility District
At the time of the tour, the project had been under construction for 250 days. Due to COVID-19 and social distancing restrictions, board members and others who attended the traveling meeting stayed in their cars. While behind the wheel, board members wove through parts of Fallbrook to follow the path of the new pipeline. With their smartphones turned on and hands-free, representatives followed each other in a single file parade while listening to a live conference call with the project contractor. Board members learned about construction progress, and saw where and how the pipe will be installed.
The tour and the project began at the treatment plant on Alturas Road, where bulldozers and heavy machinery are moving earth to build the pipeline and a water treatment plant. The pipeline will transport water from the plant through parts of central Fallbrook, ending at McDonald Road. The project also includes a new four million-gallon storage tank, where the tour ended. Participants discussed the possibility of a subsequent tour to view ongoing progress with construction of the facilities.
The entire construction process will take approximately two years to complete, with the pipeline becoming fully operational by 2022.
County Named Recycled Water Customer of the Year
Encinitas, Calif. — The WateReuse Association of California recognized County of San Diego Department of Parks and Recreation as a 2020 Recycled Water Customer of the Year today. The award was presented at WateReuse’s first virtual conference. Olivenhain Municipal Water District nominated the County for its dedication to using sustainable recycled water to irrigate County parks in OMWD’s service area.
The Sweetwater Authority recently began a multiyear water main flushing program using innovative technology to clean all 400 miles of pipeline in its system. It’s part of Sweetwater Authority’s use of the latest technology to deliver a safe, reliable water supply to its South San Diego County customers.
Water main flushing cleans pipeline interiors by sending a rapid flow of water through them. Sweetwater’s program is the first in the region to use a new, innovative technology resulting in less environmental impact.
“We’re committed to providing our customers with high-quality water, ensuring that every drop meets safety standards and protects public health,” said Tish Berge, Sweetwater Authority general manager. “We’re also dedicated to providing the safe, reliable water through the use of best available technology and sustainable practices.”
See the system in action in the following video. A Spanish language version is also available.
Traditional flushing methods release water from fire hydrants at a high speed in order to flush out naturally occurring sediments accumulating in water pipes over time. Although the sediment itself is harmless, it can eventually affect water color and taste. The water used to clean the pipes often cannot be captured and ends up in the storm drain system.
The bulk of Sweetwater Authority‘s flushing program now eliminates the need to discharge water from fire hydrants during the cleaning process while delivering the same results.
With the closed-loop system and increased controls, crews are able to effectively and thoroughly flush large sections of pipeline with a single setup and staging area. This more efficient setup is less labor-intensive and allows the crew to maintain a safe hub for operations. Photo: Sweetwater Authority
Crews identify all pipes, valves, and fire hydrants located in the area to be flushed. Next, crews connect one end of a hose to a hydrant and the other end of the hose to the no discharge, or NO-DES flushing unit. The process repeats, connecting a second hose to another hydrant and the other end back into the flushing unit, creating a temporary closed loop.
Once the NO-DES flushing unit is turned on and the hydrants are open, water will push through the loop at high pressure, disrupting any accumulated sediment on the inside of the pipes. The water is pushed through a series of sock-like filters, which remove those sediments and return clean, high-quality water back into the system.
Crews closely monitor the filtration system and water quality to determine when flushing of each pipeline segment is complete.
Additional member water agencies have indicated an interest in the cost-effectiveness of purchasing the NO-DES flushing units for the region and collaborating to create a shared-use program with the technology. Photo: Sweetwater Authority
With the closed-loop system and increased controls, crews are able to effectively and thoroughly flush large sections of pipeline with a single setup and staging area. This more efficient setup is less labor-intensive and allows the crew to maintain a safe hub for operations.
In the National City area 75.8 miles of pipeline was recently flushed. Crews are now completing work in the Bonita area, and then will start work in Chula Vista.
Additional water agencies have indicated an interest in the cost-effectiveness of purchasing the NO-DES flushing units for the region and collaborating to create a shared-use program with the innovative technology.
“Securing a local water supply to ensure the water delivered is of the highest quality through the best technology in our projects and programs helps to maximize value for our customers while also being sustainable,” said Berge.
For more information on the program, go to www.sweetwater.org/flushing.
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.
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.
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.
Encinitas, Calif. — At Olivenhain Municipal Water District’s June 17 board meeting, OMWD staff notified its Board of Directors that Fitch Ratings, a global rating agency that offers independent credit opinions, has reaffirmed the district’s “AAA” bond rating with a stable outlook. AAA is the highest possible rating assigned by Fitch, and OMWD is one of only a handful of Southern California water agencies that have achieved this rating.
A draft report released today by the San Diego County Water Authority shows that building a new conveyance system to transport regional water supplies from the Colorado River Quantification Settlement Agreement is cost-competitive with other long-term options for meeting the region’s water needs.
The draft Phase A report is under review by water officials across the region. The Water Authority’s Board of Directors is expected to decide whether to move to Phase B at its July 23 meeting.
“By releasing this draft report – along with an independent review of key financial assumptions – we are trying to spark a thoughtful dialogue about our region’s water future,” said Dan Denham, deputy general manager for the Water Authority. “Given the long lead time for major water infrastructure projects, it’s important that San Diego County wrestle with these complex questions today so we can control our own destiny tomorrow.”
The Phase A report is the result of technical and cost analysis by Black & Veatch Corp. and the economic analysis by Water Authority staff. The engineering firm conducted similar studies for the Water Authority dating back to 1996, assessing “single use” water-delivery projects in those studies. The current Phase A analysis looks at conveyance projects with multiple partnership possibilities and potential benefits for the environment, water agencies and others.
Three potential pipeline routes were studied in Phase A, and the draft report says two alternatives (3A and 5A) are cost-competitive with other options, such as relying more on Metropolitan Water District of Southern California or developing additional local supplies.
Phase A takes a conservative approach to cost protections, by not factoring in potential partnerships or other sources of funds. However, partnerships and other agreements could significantly reduce the cost and enhance the value of a regional conveyance system. Phase B would include more detailed analysis of potential partnerships and funding opportunities and more details about projected costs from MWD.
“A decision about the Regional Conveyance System cannot be made in the abstract,” said Kelly Rodgers, director of the Water Authority’s Colorado River Program. “It must be made based on a comparison of the available alternatives, and we look forward to additional analysis and perspectives from our member agencies in the weeks ahead.”
The Water Authority currently pays MWD to transport QSA water through the Colorado River Aqueduct to San Diego. The regional conveyance system would be designed to convey the QSA water, which in 2021 will reach its full amount of 280,000 acre-feet of water annually. The current Water Transfer Agreement between the Imperial Irrigation District and the Water Authority continues to 2047. Both agencies can agree to extend the transfer another 30 years to 2077.
Each of the potential conveyance routes would connect to the tail end of the All-American Canal where it meets the Westside Main Canal in the southwest corner of Imperial Valley.
Two of the routes would follow a southern corridor between the Imperial Valley and San Diego, with one route over the mountains paralleling the U.S./Mexico border and the other tunneling through the mountains. Both routes would end at the San Vicente Reservoir in Lakeside.
The third and northernmost route would follow the Westside Main Canal toward the Salton Sea, then flow past Borrego Springs, and through the mountains. It would eventually connect to the Water Authority’s Twin Oaks Valley Water Treatment Plant in San Marcos.
To read the report, go to https://www.sdcwa.org/colorado-river-supplies-management.
City of San Diego lakes and reservoirs previously closed in response to the coronavirus pandemic are now in the process of reopening for public recreation.
“A lot of San Diegans have a passion for fishing and boating, and we’ve been able to partner with the County [of San Diego] to reopen all of our lakes and reservoirs to the public,” said San Diego Mayor Kevin Faulconer.
El Capitan Reservoir and Upper Otay Reservoir reopened on June 6. San Vicente Reservoir will open to the public June 13.
Three reservoirs will re-open in July: Lake Hodges on July 1, Sutherland on July 3, and Barrett on July 8.
Miramar, Murray, and Lower Otay Reservoirs have opened in mid-May.
Standup paddleboarding is available at Lake Hodges on Saturday, July 1. Photo: City of San Diego
New safety and cleaning protocols initiated with the re-openings in May will remain in place at all reservoirs. The reservoirs will be open during regular business hours for walking, jogging, cycling, fishing, and boating. Normal fishing and boating fees will apply.
“As we have seen from the thousands of calls, emails, and letters to City Hall, fishing is more than a hobby, it’s a passion,” said San Diego City Councilmember Scott Sherman. “Our lakes and reservoirs are too important of a recreational asset to keep closed and I am thankful they will be opened soon.”
For more information, go to https://www.sandiego.gov/coronavirus
Catfish are being restocked this week in Lakes 3 and 6 at Santee Lakes for happy fishermen. Photo: Courtesy Santee Lakes/Padre Dam MWD
Lake Jennings in Lakeside, operated by the Helix Water District, will also reopen for recreation and day-use on Saturday, June 13. Hours are limited to weekends from 6 a.m. to 3 p.m. Fishing and day-use visitors must wear masks and adhere to social distancing. The Bait and Tackle Shop will be open with restrictions. Shore fishing and private boat launching are available, but no boat rentals, night fishing, or fish stocking at this time.
In addition, Lake Jennings recently reopened for camping on June 5 with restrictions in place limiting use to every other campsite, and only by members of the same household. See the complete list of restrictions at the Lake Jennings website.
“We are thrilled to be able to reopen in compliance with the County regulations,” said Kira Haley, Lake Jennings recreation manager. “We really appreciate your understanding in this difficult time while we continue to work hard to keep our community safe.”
The public will be asked to observe COVID-19 preventative measures, including mandates requiring face coverings and physical distancing.
Santee Lakes, operated by the Padre Dam Municipal Water District, expanded recreational use including fishing with some restrictions on May 16. All activities with physical distancing are allowed including jogging, bike riding, roller-skating. A facial covering is not required during physical activities but must be in your possession. Physical distancing and possession of a facial covering are required while fishing. The lake’s campsites have remained open throughout the pandemic, but campers must practice social and physical distancing while on site.
The cost of reopening the City of San Diego’s additional reservoirs is approximately $1 million. Funding identified through a tentative cost-sharing agreement with the County of San Diego will be limited to covering enhanced staffing costs for ensuring public health is maintained in response to the COVID-19 pandemic. Both the City Council and San Diego County Board of Supervisors will need to approve the agreement.
Doing business with Sweetwater Authority is easier than ever for local companies, thanks to revisions in the water agency’s procurement policy recently approved by its Governing Board. The revised policy created a preferential purchasing program for local businesses and directed agency staff to engage the local vendor community through a newly created vendor webpage and online form where interested businesses can submit their information to be included in the Authority’s vendor database.
Pre-construction activities at the North City Water Reclamation Plant and the future Pure Water Facility are underway as part of Phase 1 of the Pure Water San Diego program. More than 80,000 cubic yards of soil have been moved to date during initial site work, the equivalent of approximately 25 Olympic sized swimming pools.
Last month, the San Diego Regional Water Quality Control Board adopted an order granting a National Pollutant Discharge Elimination System, or NPDES permit, to the City of San Diego to add purified water to the Miramar Reservoir for Phase 1 of Pure Water San Diego. The approval is a major milestone for the program.
NPDES permits contain discharge limits, monitoring and reporting requirements, and other provisions to ensure water quality and public health. The NPDES permit issued to the City is the first for a reservoir augmentation project in the state of California.
By implementing Phase 1, the City will be able to produce and store 30 million gallons per day of local water supplies and decrease its reliance on imported water.
More than 80,000 cubic yards of soil have been moved to date during initial site work on the Pure Water San Diego project, which is the equivalent of approximately 25 Olympic sized swimming pools. Photo: City of San Diego
Phase 1 includes a series of pipelines and facilities to convey purified water to Miramar Reservoir. Adding the purified water to Miramar Reservoir will increase the reservoir’s beneficial use and optimize protection of water quality. The purified water will blend with the City’s imported sources and be treated again at the Miramar Water Treatment Plant and distributed to the public.
The purified water distribution area will include the portion of the City of San Diego that receives potable water from the Miramar Water Treatment Plant in addition to the City of Del Mar.
Phase 1 of Pure Water San Diego includes several projects: the Morena Pump Station and Pipelines, the North City Water Reclamation Plant Expansion, the North City Pure Water Facility, and the North City Pure Water Pump Station and Pipeline.
Sweetwater Authority Logo 2019