Guide to Carlsbad Desalination Plant – The Biggest Desalination Plant in San Diego

Carlsbad desalination plant in San Diego County serves as a backup water supplies in case the area is being hit with drought again. San Diego was first hit with a serious drought in 1987. It continuously suffer from drought from 1987 – 1992.


Poseidon Water company that is based in Boston proposes a plan to build the Carlsbad plant in the Encina Power Station in 2000. At that time, they estimated the cost to be {ba58fcf44ad6d14bab84e1e68930ef84768bde1daafd84a7dbe017c3a0763de5}270 millions. The real cost of building Carlsbad plant is about $2,000 per acre foot.

The plan was approved by the Carlsbad government in 2006. The San Diego Regional Water Quality Control Board has approved the permit to begin the construction in 2008. The testing period was conducted in between November to December in 2015 before it was officially opened.

Carlsbad is the largest desalination plant not just in San Diego but also the largest desalination in the world.  It is able to produce about 56,000 acre of water per year. It produces enough water for 3 millions residents of San Diego County. It gives the residents an opportunity to experience what desalinated water tastes like. Desalinated water is not just for use during drought or emergency time when water is scarce. It is safe to drink desalinated water just like the ordinary drinking water at home.

Carlsbad desalinated water costs double than the imported water. Even though it costs double the imported water, officials claimed that the price is fair because it helps in reducing its dependency on water that is imported. Desalinated water from Carlsbad is State Water Resources Control Board certified.

Carlsbad desalination plant utilizes the Reverse Osmosis process to desalinate the water. Reverse Osmosis is a water filtration technology originally invented in the 1950s. NASA astronauts are supplied with reverse osmosis water in the spaceship. Lots of industries and businesses have chosen to rely on reverse osmosis water to supply their needs.

Reverse Osmosis is able to remove 95-99{ba58fcf44ad6d14bab84e1e68930ef84768bde1daafd84a7dbe017c3a0763de5} of soluble in the water. It does not just remove solid particles but also can eliminate the bad odor from the water. There is no chlorine test in the reverse osmosis water because chlorine has been removed from the water during the treatment process.

Reverse Osmosis water is cheap and only cost a few cents for a gallon. This can help you to save a lot of money if you buy bottled drinking water from supermarket everyday. The water is suitable to be used for cooking. It taste good and will encourage your children to drink water instead of carbonated drinks.