Until further notice, SEJPA facilities are open to vendors and visitors by appointment only (760-753-6203).

In response to updated guidance on COVID-19 prevention measures, San Elijo Joint Powers Authority (SEJPA) adopted revised precautionary measures to prevent the spread of the virus. Until further notice, SEJPA facilities are open to vendors and visitors by appointment only (760-753-6203).  Please note that all persons should avoid entering the facility if they have any COVID-19 symptoms, including a fever and cough. Recommended COVID-19 response measures are available from the State, County, CalOSHA, and CDC, and all persons entering the site are required to comply with these requirements.

Thank you for your understanding and your efforts to protect our community.


We value our community, the environment, and our local water.

Serving the cities of Encinitas, Solana Beach, and Del Mar

Our Mission

To serve our communities by providing safe and reliable recycled water and wastewater services in order to protect the environment and public health.

Clean water is our core mission.

Vision Statement

We pursue innovative practices to produce clean water in an environmentally, socially, and fiscally responsible manner.

Project News & Announcements

Build North Coast Corridor (NCC) Ribbon Cutting

Date: May 27, 2022

You’re invited! Please join Caltrans and SANDAG on Saturday, June 4, from 11 a.m. – 2 p.m., for the Build North Coast Corridor (NCC) Ribbon Cutting and Exploration Day – a fun and free celebration for the whole family! 

The event begins with a ribbon cutting ceremony at 11 a.m. at the new bike and pedestrian suspension bridge. Then, check out the new biking and walking trails, explore the San Elijo Lagoon Ecological Reserve, test out an e-bike, and enjoy refreshments. But wait – there’s more! Visitors who explore all five information stations will have a chance to win special commemorative giveaways (while supplies last).

  • Date: Saturday, June 4, 2022  
  • Time: 11 a.m. – 2 p.m.   
  • Location: San Elijo Lagoon Ecological Reserve in Encinitas. Free parking and shuttle at Mira Costa College at 3333 Manchester Ave., Cardiff, CA 92007 

San Elijo is hosting tours of the new San Elijo Water Campus (2695 Manchester Ave. Cardiff By The Sea, CA 92007) on a 1st come 1st serve basis at the following times:

  • 12:30 p.m. – 1:00 p.m.
  • 1:00 p.m. – 1:30 p.m.
  • 1:30 p.m. – 2:00 p.m.

The parking lot at the San Elijo Water Campus may be impacted by the event.

For more information and to register today, visit 

About the project

The Build NCC project offers balanced transportation improvements to provide travelers with choices to move around the region. This project provides new Interstate 5 (I-5) Carpool/HOV Lanes, coastal rail, and transit enhancements, walking and biking paths, and environmental restorations. 

Event map for the Build North Coast Corridor (NCC) Ribbon Cutting and Exploration Day

EV Charging Opens at Water Campus

Date: March 14, 2022

Visitors to San Elijo Lagoon can charge their electric vehicles while hiking at the nature reserve. Six new charging stations have opened to the public at the San Elijo Joint Powers Authority Water Campus on Manchester Avenue. Electric vehicle charging went live this month and is one of many new upgrades at the Water Campus.

ChargePoint, Inc., a third-party vendor, maintains the vehicle charging system and handles users’ billing and network connections. At the charging stations, fees are designed to recover the costs of electricity and running the system. A parking fee begins after the third hour of charging.

EV Charging Opens at Water Campus

Solar Photovoltaic System Update

Date: January 10, 2022

SEJPA's solar project team received permit approval in December 2021, and construction is slated to begin in February 2022. The solar system is expected to produce up to one-quarter of the average daily electrical demand for the Water Campus. The project, which includes a combination of rooftop, carport, and ground-mounted solar arrays, has an estimated cost of $2.0 million. The project is funded through a Power Purchase Agreement with REC Solar/Duke Energy, as approved by the Board of Directors in December 2020 .

The full version of the December 2020 Staff Report can be found here.

New solar project image

Ribbon-Cutting for Water Campus Improvements

Date: October 19, 2021

On Tuesday October 19, 2021 SEJPA’s Board of Directors, along with General Manager Michael Thornton, cut the ribbon on $20.6 million in community-focused upgrades to the Water Campus on Manchester Avenue, known formally as the Water Campus Improvement Project. Elected leaders from Encinitas, Solana Beach, Del Mar and the State of California joined about three-dozen community members to celebrate completion of the two-year construction program. One of its crowning features is a modern, two-story administrative building and learning center.

“It’s an important project that modernizes aging facilities and adds renewable energy while improving public access and increasing walking and biking paths in our coastal cities,” said Chairwoman Kristi Becker.

The campus improvements provide numerous public amenities, including parking for the nearby San Elijo Lagoon Nature Center; pedestrian safety improvements on Manchester Avenue; electric vehicle charging; a small park on Manchester Avenue, and a multi-use bike and pedestrian path built in partnership with Caltrans. The multi-use path connects Manchester Avenue to Birmingham Drive and is set to open in the May 2022.

The project includes a new operation and administration building, facilities for stormwater capture, the permanent preservation of sensitive open space, and the installation of a $2 million solar system to meet up to 25% of the facility’s electrical demand.

The original wastewater facilities on Manchester Avenue opened in the mid-1960s. Over the years, the award-winning facility has evolved into a water campus that treats and recycles wastewater, hosts water research in collaboration with local universities, and provides educational opportunities to schools and colleges. The ribbon cutting event highlighted the partnerships with Caltrans, which contributed $5.4 million for the multi-use path and improvements on Manchester Avenue, and the California Department of Water Resources, which funded $300,000 for stormwater capture and reuse.  In addition, great support also came from the cities of Encinitas and Solana Beach, the County of San Diego and the Nature Collective.

“We always appreciate the outstanding collaboration we get from our neighbors and partners,” said SEJPA General Manager Michael Thornton.

Ribbon-cutting for water campus improvements

Water Campus Improvements Project Update

Date: September 13, 2021

The Water Campus Improvement Project will modernize the existing San Elijo Water Reclamation Facility including the addition of a new Operations and Administration building, improved fire-suppression and security systems, 0.6-megawatt photovoltaic solar power, stormwater capture and reuse, community parking and a regional multi-use (bike and pedestrian) path. True to our mission and values, the new facility will promote sustainable practices and provide water education features for the community.

Construction efforts for September 2021 include the installation of a traffic signal and bike/pedestrian crossing on Manchester Avenue, improvements to reduce stormwater pollution, and paving of the community parking lot. The signal is designed to allow for the safe crossing of bicycles, pedestrians, and vehicles entering Manchester Avenue. Onsite construction is expected to be completed in October 2021. The multi-use path will connect to the NCC Bikeway along the 1-5 freeway, as well as the trail on the south side of Manchester Avenue, providing connectivity to the San Elijo Lagoon and Nature Center. The multi-use path will be available for public use in early 2022 in coordination with other Caltrans’ NCC I-5 trail openings.

Construction progress on the operations and administration building

Solar Photovoltaic System Update

Date: May 28, 2021

In December 2020, the SEJPA Board of Directors approved a power purchase agreement with REC Solar to implement a solar PV project that will produce approximately 610 kilowatts (kW) of solar power, or approximately 25% of the average daily demand of the Water Campus. The project includes a combination of rooftop, carport, and ground-mounted solar arrays for an estimated capital cost of $2.0 million. The project is currently in the design and permitting phase, with an expected construction start in Fall 2021.

The full version of the December 2020 Staff Report can be found here.

New solar project image

Encinitas Ranch Recycled Water Project Recognized for its Environmental Stewardship

Date: October 05, 2020

The Encinitas Ranch Recycled Water Project is now serving locally produced recycled water to irrigate the community’s shared landscaping, parks, and trails.

Press Release


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