Tag Archives: San Diego

San Diego’s Water Treatment Process

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We have spent plenty of time outlining why San Diego’s Tap Water Is So Bad, but what is the process that the city uses to attempt to clean it?

Overall, the city does the best it can to disinfect the water we import from the Colorado River and Northern California, but it doesn’t remove everything harmful; San Diego has a relatively high total dissolved solids (TDS) count in its water.

Water treatment isn’t all about removing substances though – the city also adds chlorine, ammonia, sodium hydroxide and fluoride before sending it to your home.

The Disinfection Process

#1. Primary Disinfection with Ozone or Chlorine Dioxide to inactivate viruses, bacteria and other pathogenic organisms. While this process is pretty effective in killing off nasty stuff, there are still chlorine-resistant parasites such as cryptosporidium and giardia in our water.

#2. A chemical mixture is added to remove dissolved solids.

#3. Chlorine is added again for further disinfection.

#4. Water is filtered over a coal and sand composite to remove small particles.

#5. Ammonia is added (creating dangerous chloramines) to prevent microbial growth, and sodium hydroxide is added to correct the pH of the water.

#6. As mandated by California state law, Fluoride is added to the water to ‘promote strong teeth’. And as we outlined, HERE, this is an issue.

Next, the water is sent to your tap.

The California Department of Public Health (CDPH) has a list of some contaminants it requires the City of San Diego to monitor. There are still hundreds of thousands of harmful contaminants that do not require monitoring.

The 2013 Annual Drinking Water Quality Report states that during 2013, contaminants requiring monitoring were detected at or above Detection Limits for Purposes of Reporting. They issued this warning:

“Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers.”

Want to ensure you have the cleanest, safest water in your home? Check out our water filter products HERE.

Why is San Diego’s Tap Water So Bad?

If you didn’t already know (and if you live here, you know) San Diego has some very subpar tap water. In fact, it has some of the worst tap water in the country, according to a study by the Environmental Working Group (EWG). It’s a shame that such a beautiful city nestled up to a pristine blue ocean has tainted drinking water.

It’s easy to complain about the water here, but it’s also important to understand why the water quality is so poor and the effects it can have on our health and well-being.

This information is pertinent for many people outside of San Diego, too. There have been a number of incidents in the past year compromising drinking water supplies across the country.

Why San Diego?

With the ocean down the street, it’s easy to forget that San Diego is actually in a desert. If you know one thing about deserts, it’s that there is very little water. We’re still some time away from desalination plants (like the one in construction in Carlsbad) being a significant source of drinking water. Thus, we get our water from thousands of miles away.

Our two main sources are the Colorado River and the California State Water Project in Northern California. There are a number of issues with each of these sources.

The Colorado River provides the majority (60%) of San Diego’s water. It runs through canyons and rocks which deposit volatile organic chemicals.

20% of San Diego’s water comes from the California Water Project in Northern California, the hotbed of agriculture for the whole country. The problem with this is the vast amount of fertilizers used on these farms. Fertilizers contain nitrates and nitrites, which make their way into the water table and into our tap water.

These problems aren’t unique to San Diego, though. A five-year study by the EPA found more than 300 contaminants in tap water across California. And worse, California water authorities were cited for 5,514 federal and state violations over that five-year period.

What are the effects of contaminated tap water?

Everything. Pollutants in your tap water are just as bad as they sound.

Below are some of the worst offenders present in San Diego’s water along with their health effects.

Arsenic – Skin damage, circulatory problems, increased risk of cancer
Asbestos (from the cement in water mains) – Increased risk of cancer and intestinal polyps
Lead – Impaired mental and physical development in children, attention and learning deficits, high blood pressure
Nitrates/Nitrites – Oxygen distribution problems, Blue Baby Syndrome

What can we do?

It’s easy to be alarmed at the quality of our tap water, but it’s important to take steps toward making it safer. The government is too strapped for cash and too slow-moving to take the initiative, so it’s up to us to manage our own water.

1. Contact your county health department for a report on your local water quality and to learn about any recent violations.

2. Read our guide to Comparing Water Filters to understand the different options you have for getting clean, healthy water in your home.

3. Call 619-356-3766 to speak with a water expert about how you can get the Certified Healthiest Water in your home today.

Getting drinking water from the sea, but for a price

The ongoing severe drought in California is the just the latest in a recent series of water crises that have kept large areas of America parched.

Parts of Texas and the Southwest are still recovering from historic drought conditions that dried up the region several years ago. And given global climate change and the world’s growing population, the costly process of desalination — turning ocean or brackish water into clean, drinkable fresh water — is being considered a viable option in California and elsewhere.

In California alone, 17 desalination plants are either under construction or being planned, including the $1 billion Carlsbad facility near San Diego, scheduled to open in 2016. Once fully operational, that plant is expected to produce 50 million gallons of drinking water a day.

“We’ll produce enough water to meet the daily needs of 300,000 San Diego residents,” Peter MacLaggan, senior vice president at Poseidon Resources, the company partnering with the San Diego County Water Authority on the project, said last month. “We’ll have at least one water supply that’s drought-proof — it won’t matter whether it snows in the Rockies or rains in the Sierras.”

That desalinated water, however, won’t be cheap.

“When you want to desalinate, it’s incredibly energy-intensive, and therefore cost-intensive,” said Michael Webber, deputy director of the Energy Institute at the University of Texas at Austin. “And that’s the rub of it. It’s drought-resistant, it’s abundant, it’s never going to go away, but it’s costly to do.”

There are two main desalination processes. Thermal, as the name implies, involves heating salt water and then distilling pure, drinkable water from the steam. And there’s reverse osmosis, the process Carlsbad will use — where sea water or brackish water is forced through filter membranes that remove the salts.

Thermal desalination is huge in Saudi Arabia and elsewhere in the Middle East. That method makes economic sense there, says Webber, “because they have energy but don’t have water, so they trade energy for water.”

California also expends a lot of energy — as well as hundreds of millions of dollars annually — to store, pump and deliver water across the state.

The question, then, is whether Californians will be willing to purchase the expensive water that desalination facilities produce. As an example, Webber points to the Tampa Bay Seawater Desalination facility in Florida, which can produce up to 25 million gallons of drinking water daily. But due in part to the cost, the Tampa Bay plant is rarely run at full capacity.

Desalination can make economic sense when it’s combined with good design and proper integration into a region’s infrastructure. And given its growing use worldwide — industry website Desalination.com says more than 60 million cubic meters of drinking water are produced worldwide daily by desalination — technological advances could help reduce the cost of turning salt water into fresh water.

“I do see that water is the next oil,” Webber notes, “that water is the great resource of the 21st century over which battles [will be] fought, money is invested.”

Algae Invade Southern California Drinking Water

myFOXla.com: Residents in a number of inland areas are dealing with some seriously stinky water, the result of a summer algae bloom in a state reservoir.

Silverwood Lake, the highest elevation reservoir in the state water project is suffering from an abundance of blue-green algae caused by warmer temperatures, possibly the result of global climate change.

The algae makes the water from the reservoir smell and taste musty during the heat of summer, according to the Metropolitan Water District.

Affected areas include Claremont, La Verne, Walnut, Diamond Bar, Rowland Heights, Upland, Chino, Chino Hills, Rancho Cucamonga, Fontana, Riverside, Corona, Norco, Eastvale, Jurupa Valley, Lake Elsinore, Hemet, Perris, Murrieta and Temecula.

The MWD says there is no health risk from drinking the water, although it may be somewhat unpleasant.

The Department of Water Resources is planning to spot treat the reservoir this Thursday and Friday with a form of hydrogen peroxide which will neutralize the overgrowth.

While the water is safe to drink, some water agencies are recommending refrigerating the water to get rid of some of the nasty smell and taste.

What Are the Effects of Algae In Your Water?

Blue-green algae, otherwise known as cyanobacteria or “pond scum,” are microscopic organisms that thrive in pools of standing water when exposed to sunlight during the warmer months of the year. Although they are not typically seen in homes, they are common in ponds and other standing bodies of water. Unfortunately in this case, they have thrived in the reservoir from which we get our drinking water.

Visible Effects

Algae can cause drinking water to change color, but in most cases it is undetectable. Only in extreme situations will the blue-green or yellowish-brown tint of an algae infestation become visible in faucet water. Algae-infested water may also produce scum.

Algae in drinking water don’t give off an odor until the problem is quite severe. In such situations, according to the government of New Brunswick, it will smell like freshly cut grass; in extreme cases, it will cause drinking water to smell like sewage or garbage.

While not all algae produce toxins, it is not easy to tell the nontoxic type from the more dangerous algae. Toxic chemicals released by algae can lead to a number of health problems. If too much is ingested, it can kill animals. According to the Florida Department of Environmental Protection, humans who drink water poisoned by algae toxins can experience a litany of health issues. This includes long-term problems with the liver, digestive and nervous systems, including liver cancer. Other issues that can come up include headaches, sore throat, fever, vomiting and diarrhea. Contact with the algae toxins on the skin can lead to hives and rashes.

Checkout our Aura H2O Water Filter which can remove these harmful microorganisms from your drinking water. Our filter uses a 14-step, 3 phase filtration technology that removes the contaminants and remineralizes your water, producing the certified healthiest water possible.

Source: Ehow