How do I get rid of E. coli in my well water?

Author: scraper  |  Last update: Saturday, July 18, 2026

To remove E. coli from well water, first stop drinking it immediately (or boil it for 1-5 minutes). Then, follow a two-step process: disinfect the well (shock chlorination) to kill existing bacteria, and install a permanent water treatment system to prevent recurring contamination.

What happens if you have E. coli in your well water?

Immediate Action to take with a Positive E.

If E. coli is found present in your water sample, discontinue consumption of the water unless you treat it. Treatment can be achieved by boiling the water for at least one minute.

How common is E. coli in wells?

E. coli is found in about 1% to 15% of private wells, depending on the region, well type, and well construction. While not common in deep, properly sealed wells, it is more frequent in shallow, older, or dug wells. Finding E. coli indicates that human or animal waste has entered your water supply.

How to remove E. coli from water naturally at home?

Bring water to a rolling boil for at least one minute. At altitudes above 5,000 feet (1,000 meters), boil water for three minutes. Let water cool naturally and store it in clean containers with covers.

Can I still drink my well water with coliform?

coli, an immediate health concern may not be present but further investigation should be done. If the well water tests positive for total coliforms, the water should not be consumed. Use bottled water for drinking and cooking until coliform presence is confirmed by a second test.

Topic: Coliform Bacteria in Water Supply Wells

What is the difference between E. coli and coliform?

Coliform is a broad family of bacteria naturally found in soil, vegetation, and the intestines of warm-blooded animals. E. coli is a specific subgroup of coliform bacteria found almost exclusively in fecal matter. While coliforms generally suggest environmental presence, E. coli confirms recent fecal contamination.

Can you shower in water that has E. coli in it?

Yes, you can safely shower in water contaminated with 𝐸. coli, provided you do not swallow the water and have no open cuts or wounds. Since the skin is an excellent barrier against bacteria, a quick, soapy shower poses minimal risk to healthy adults.

What water filter will remove E. coli?

To effectively remove E. coli from your water, you need a system with a sub-micron pore size (such as Reverse Osmosis or Ultrafiltration) or a UV (Ultraviolet) Sterilizer that kills the bacteria. The CDC recommends the following specific systems:

Does vinegar remove E. coli?

Yes, standard household vinegar (acetic acid) is effective at killing E. coli bacteria. Its high acidity disrupts the bacteria's cell structure, making it a valuable tool for cleaning and food preparation.

What kills E. coli in a well?

To remove E. coli from well water, first stop drinking it immediately (or boil it for 1-5 minutes). Then, follow a two-step process: disinfect the well (shock chlorination) to kill existing bacteria, and install a permanent water treatment system to prevent recurring contamination.

How can I tell if my well water is making me sick?

Signs your well water is making you sick range from acute stomach issues to long-term chronic conditions. Key indicators include recurring gastrointestinal distress (nausea, diarrhea, cramps), unexplained fatigue or headaches, skin rashes after showering, and odd tastes, smells, or discoloration.

What is the #1 healthiest water to drink?

There is no single “#1” healthiest water, as the ideal choice depends on your specific health and hydration needs. However, experts generally agree that naturally mineralized spring water and carbon-filtered tap water (especially when remineralized) are the best daily options.

What's worse, E. coli or coliform?

Most coliform bacteria do not cause disease. However, some rare strains of E. coli, particularly the strain 0157:H7, can cause serious illness.

How to get bacteria out of well water?

Removing bacteria from well water usually requires shock chlorination—a process of pouring a bleach solution into the well, recirculating it, and letting it sit for 12-24 hours to kill pathogens. If bacteria return, continuous treatment systems like UV lights, ozone, or chlorinators are required. Always test the water after treatment to confirm it is safe.

Which state in the US has the worst tap water?

There is no single state with universally the "worst" tap water, as quality varies by utility. However, based on high contaminant counts, EPA violations, and population exposure, Texas and New Jersey consistently rank at the bottom.

How long will E. coli live in water?

E. coli can survive in water for anywhere from a few days to several months. Survival times depend heavily on the environment, as the bacteria can thrive in cool, nutrient-rich water with sediment, but will die off faster in warm, sunny, or highly treated water.

Does a whole house water filter remove bacteria?

The Premiere BG-202BIV submicron water filtration system is one of the best point of entry / whole house water filters to remove viruses, bacteria, cysts, fine particulates, and other biological hazards.

How to remove E. coli from water naturally?

The most effective natural methods to remove E. coli from drinking water rely on heat and UV exposure. These methods kill or inactivate the bacteria without the use of harsh chemicals.

Can you do laundry with E. coli water?

Yes, you can wash clothes with water containing Ecap E𝐸. coli, but you must take precautions to prevent the spread of bacteria. The mechanical action of washing with detergent removes germs, and the heat from a mechanical dryer eliminates any remaining bacteria.

What is the 4 minute shower rule?

The 4-minute shower rule is a sustainability and cost-saving initiative advising people to limit their daily showers to four minutes or less. This practice helps conserve water, reduce energy used for heating, and lower household utility bills by limiting consumption to approximately 36–40 liters (roughly 9.6–10.5 gallons) per shower.

Why does my well water keep testing positive for coliform?

Coliform bacteria in a water system are generally either a result of a failure to maintain a “closed” system and/or equipment failure. Visually inspect the system including wells, tanks, chlorinator, etc. Look for areas where soil, leaves, insects, animals, sewage or animal wastes could get into your system.

Where is the most common place to get E. coli?

E. coli bacteria are naturally found in the lower intestines of healthy humans, warm-blooded animals, and cattle. Infections occur when the bacteria are ingested via contaminated food, water, or surfaces.

How long are you contagious with E. coli?

You are contagious with E. coli for as long as the bacteria are present in your stool, which can range from a few days to several weeks after symptoms resolve. The exact duration often depends on your age and the specific strain of the infection:

What are five diseases caused by E. coli?

Common infections with E coli as a pathogen include cholecystitis, bacteremia, cholangitis, urinary tract infection (UTI), traveler's diarrhea, pneumonia, and neonatal meningitis.

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