Del Mar Mesa board hears water purification update, seeks state regulations

By Suzanne Evans

Citing a scant 6 inches of rain over the last year exacerbating the city’s water shortage crisis and skyrocketing prices, Public Utilities Department representatives Hooman Partow, senior civil engineer, and Mehdi Khalili, engineer, updated the Del Mar Mesa Community Planning board Sept. 12 on San Diego’s Water Purification Project.

According to the city’s web site, in 2009, “the City of San Diego embarked on a demonstration project to examine the use of advanced water purification technology to provide safe and reliable water for San Diego’s future. The Water Purification Demonstration Project’s (PDF) objective is to evaluate the feasibility of using advanced treatment technology to produce water that can be sent to San Vicente Reservoir and later distributed as potable water.”

“Challenges in the water supply are limited local supplies and the cost of imported water.  The Carlsbad (desalination) project, though approved, is not enough,” Partow said.

The engineers said that at the Water Purification Demonstration Project in San Diego’s North City Water Reclamation Plant, recycled water is filtered pure, using micro filtration: plastic tubes which filter out contaminants.

Reverse osmosis units screen salts and solids, preserving about four-fifths of the recycled water. Only very small amounts of disinfectants, pharmaceuticals, and other elements remain.

“Water really is pure at this point; it meets all federal and state drinking water standards,” Partow said.  “Overall, the water quality is exceptional, like distilled water.  Purified water delivered to the San Vicente Reservoir is comparable to that of imported water.”

“It would cost $2,000 per acre foot to produce and convey perfected water to San Vicente Reservoir,” Partow said, noting a need to evaluate the feasibility of using advanced treatment technology to produce water that can be sent to San Vicente Reservoir and later distributed as potable water.

“We would like to scale up the feasibility of the research project.  The state has to write regulations for us to move forward,” planning board chair Gary Levitt said.

Register online for a free public tour of a water purification demonstration project.  Visit or call (619) 533-7572 or email

Related posts:

  1. Update on city’s water purification project presented to Carmel Valley planning board
  2. DM Mesa board seeks greater say in trail plan
  3. Carmel Valley: Mesa board supports California Trout agency in fish, water conservation
  4. Del Mar City Council hears proposed food truck regulations
  5. Water, sewer rates due for an update

Short URL:

Posted by Staff on Sep 15, 2013. Filed under Carmel Valley, Del Mar, News, carmel valley. You can follow any responses to this entry through the RSS 2.0. You can skip to the end and leave a response. Pinging is currently not allowed.

Leave a Reply



Bottom Buttons 1

Bottom Buttons 2

Bottom Buttons 3

Bottom Buttons 4

Bottom Buttons 5

Bottom Buttons 6





  • RSF Association Board Biz: It’s fire season: Be prepared
    The Rancho Santa Fe Fire Protection District (RSFFPD) was officially formed in 1946, in the aftermath of a devastating fire that took place in 1943 and destroyed brush, farmland and homes from Rancho Bernardo through Rancho Santa Fe, all the way to Solana Beach and Del Mar. Today the Fire District spans 38 square miles and protects nearly 30,000 residents. W […]
  • Rancho Santa Fe couple lead way in helping those with thyroid disorders
    Few people may know that Graves’ disease is one of the most common autoimmune diseases afflicting Americans today. Fewer still may know that the only national non-profit dedicated to its patients is headquartered in Rancho Santa Fe. The Graves’ Disease and Thyroid Foundation, co-chaired by Rancho Santa Fe residents Kathleen Bell Flynn and Steve Flynn, has be […]
  • Candidates seek election to three Rancho Santa Fe special district boards
    Seats on the boards of directors of three special districts that provide such services as water, fire protection, sewage treatment and landscape maintenance are on the ballot in the Nov. 4 election. The three special districts are the Santa Fe Irrigation District, the Rancho Santa Fe Fire Protection District and the Rancho Santa Fe Community Services Distric […]