The Truth about Tap Water

tap2By Dr. Jeremy Wiseman,  July 22, 2013 — Water, in its purest form, is one of nature’s greatest gifts. All living sources depend on water to convert nutrients into energy, carry oxygen to cells, and to remove waste and other toxins. But if water sustains life, why isn’t our tap water keeping us healthy? Here’s the truth about tap water.

Cities and towns create complex water infrastructures to provide clean drinking water. Their job is to remove all acute toxins and keep chronic toxins below a certain level.  However, the end result is tap water that is not completely and consistently pure. It still contains toxic substances — many of which have a profound and direct effect on our health. So what’s really in that glass of tap water you’re about to drink?

  • Pathogens:  Bacteria, viruses, and parasites are the pathogens commonly found in drinking water.
  • Toxic Minerals and Metals:  Aluminum, arsenic, asbestos, barium, chlorine, cadmium, chromium, copper, fluoride, lead, mercury, nitrate, nitrite, selenium, and silver are known toxic inorganic substances found in our drinking water.
  • Organic Chemicals: Herbicides, paints, plastics, and pharmaceutical drugs are among the many kinds of organic chemicals found in our drinking water.
  • Additives: Water treatment plants add a variety of chemical agents to disinfect water. Chlorine is the most commonly used but is not properly removed. Fluoride is another common additive.
  • Radioactive Substances” Radioactive minerals and radioactive gas can be present in tap water.

Chronic exposure to each of these toxins increases the risk of a variety of acute and chronic health problems.

What Can You Do to Get Clean Tap Water?

You may think there is an easy solution — drink bottled water! Not so fast. About forty percent of bottled water is tap water, and discarded plastic bottles take a toll on the environment. So what can you do to ensure the water you drink is safe? The best way is to purify tap water in your home! Here are the basic strategies for filtering tap water:

  • Pitcher-Style Filter/Refrigerator Filters provide minimal purification.
  • Reverse Osmosis Filter is highly effective at removing multiple contaminants, including fluoride, especially when used with other filter types.
  • Ion Exchange Filter is highly effective at removing dissolved salts and “softening” water.
  • Distillation Filter is highly effective at removing multiple contaminants.
  • Granular Carbon and Carbon Block Filters are most commonly used to filter a wide range of contaminants.

Ideally, you want a filtration system that combines a variety of these methods to remove the greatest amount of contaminants.

Dr. Wiseman’s Advice:

Here is my personal approach, which I believe is reasonable, cost effective, and eliminates the majority of toxins in our local tap water.

  • I avoid drinking tap water at all times. I also generally try to avoid bottled water due to purity concerns and the environmental impact of plastic; however, when I do drink bottled water I buy spring water that has been filtered and is sold in glass rather than plastic. I drink a high-quality brand called Mountain Valley Spring Water.The three most transparent water companies in regards to their purity levels are: Nestlé Pure Life Purified Water, Gerber Pure Purified Water, and Penta Ultra-Purified Water. Dasani purifies using reverse osmosis and is also widely available. Make sure when picking bottled water that the company uses some kind of filtration, which is usually stated on the label.The newer filtered rainwater products are excellent and my favorite is a local company, Pure Rain, that distributes Pure Rain Purified Rain Water. Remember to recycle all plastic and glass and don’t store either in a hot environment, such as your car, as this increases the chance of chemicals leaching into the water.
  • I use a shower filter at all times. It’s simple to use and screws directly onto the showerhead. The best quality and most cost effective one I have found is from or is another great company to order from.
  • I use an under-the-sink (aka: under-the-counter) Reverse Osmosis Filtration System at home for the majority of my drinking water (I use tap water for washing dishes, though). It combines multiple strategies in one unit including a sediment filter, carbon filters, reverse osmosis (RO) membrane, and UV light. provides many types of Reverse Osmosis systems that combine multiple strategies. They are all effective and reasonably priced.

An RO filter system needs to be professionally installed and then maintained yearly by a local water specialist, but it’s worth its weight in gold. For those living in the Central Texas area, A Plus Water Conditioning (512–869-2016 or 512-293-8402) is a great source for this service and all other water questions.

There are also counter top versions of Reverse Osmosis systems along with whole house filtration systems that filter all water entering the house; however, these whole house systems are more expensive.

I have personally dedicated quite a bit of time researching this issue so that people may maintain great health, as I believe that clean food and clean water are the cornerstones of fighting and preventing disease.  Look for our latest You Tube on this subject in the coming weeks.

Visit any of our providers at Wiseman Family Practice if you need assistance in choosing the path that is right for you and your family, because in my opinion, not choosing a path just isn’t an option today. And besides, once you drink a glass of truly pure water, you will never go back to the tap!

Sources and References:

Ingram, C. (2006). The Drinking Water Book: How to Eliminate Harmful Toxins from Your Water (2nd ed.). Berkeley/Toronto: Celestial Arts.

Mercola, J. (2013, January 20) You’re Still Told Fluoride Prevents Tooth Decay, but Science Proves Otherwise. Retrieved May 15, 2013, from