Many households in the United States get their drinking water from a private well. That is a good thing, significantly since people can save money out of it. They no longer have to pay for water to drink, as long as the water from the well they get is safe.
Private wells are not covered by the Environmental Protection Agency (EPA) of the United States. They regulate to ensure that the water coming from the systems delivered to our home is safe to drink. So this means there is no guarantee that the water you get from the private wells is safe.
The United States has one of the safest water supplies in the world. But, the sources of drinking water can still get affected and contaminated by a lot of things. Some of them are natural minerals like arsenic or other kinds of chemicals. These minerals are responsible for the malfunction in the wastewater treatment system. It also includes the use of pesticides near the water source. They could also get the water contaminated.
Related Questions About Well Water
Is Well Water Safe to Drink if you Boil it?
- Drinking
- Adding to frozen orange juice and frozen lemonade
- Making drinks
- Making ice
- Cooking
- Essential mouth care, like brushing your teeth
Is Well Water Safe to Shower in?
Is Well Water Healthier than Tap Water?
Does a deeper well mean better water?
Does heavy rain affect well water?
Is My Well Water Safe to Drink?

If your drinking water comes from a private well, you need to get it tested. You may conduct it through laboratory testing or an authorized research facility. In this way, you may know whether drinking water is safe for you and your family.
Your bare eyes cannot see the harmful bacteria, parasites, and infections. This is why water looks and tastes may not be safe to drink.
Regardless of the possibility that you are not becoming ill, your well water may not be unsafe. A few contaminants found in well water can cause long-term health issues. These microorganisms can exist in surface and groundwater supplies.
Specific chemical contaminants found in a water source can cause chronic health issues. That takes a very long time to grow. Constant water testing will determine hazardous water. It will guarantee that the treatment system is treating the water to a satisfying level.
If your neighbors’ well has been tested and observed to be safe, this does not mean yours is safe. The security of your well water relies on many factors. They include surface and underground geology, depth, development of the well, and more. The Well water quality can change regularly upon revival/refilling because of the dry season. You have to test your well water and keep all testing outcomes for future reference.
Various aspects should be addressed to keep up a healthy private well, that is, a well which gives 'safe' water:
- Construction – How strong was it constructed? If ever it wasn't built well, there might be issues at any time.
- Location – Where is it located? What issues have your neighbors stated?
- Maintenance – How old the well if for years? Has the water quality been checked regularly?
- Water Source – What is the nature of the aquifer from which your water is drawn?
- Human activities – What is going in your general vicinity that could affect your well?
Also, as indicated by freedrinkingwater.com. It is vital to have your well water tested for pesticides, heavy metals, and inorganic mixes before utilizing it out of the blue.
Natural and Unnatural Contaminant and Your Well

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Naturally-occurring chemicals and minerals (for example, arsenic, copper, calcium, and radon).
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Pesticides, herbicides, and other cultivating works on. They are including runoff from confined animal feeding operations (CAFOs).
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Industrial contamination and fuel drilling can present dangerous levels of VOCs (Volatile Organic Compounds) into well water.
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Heavy metals from adjacent mining or mishandled waste.
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Malfunctioning sewers or manufactured septic systems (the EPA prescribes septic tanks introduced no less than 50 feet far from wells).
Getting Private Wells Checked

Septic Tanks | 50 feet |
Livestock Yards, Silos Septic and Leach Fields | 50 feet |
Petroleum Tanks, Liquid-tight Manure Storage, Pesticide and Fertilizer Storage, and Handling | 100 feet |
Manure Stacks | 250 feet |
Reasons to Get Private Wells Checked
It is essential to know the kinds of contaminants that may be present near your wells. The chart below lists the standard conditions or nearby activities that well owners may get their private well checked for. Not every kind poses an immediate health threat to the quality of your wells. Some may just affect the taste, immediate and appearance of the water.
Conditions or Nearby Activities: | Test for: |
Recurring gastrointestinal illness |
Coliform bacteria |
Household plumbing or service lines that contain lead |
pH, lead, copper |
Radon in indoor air or region is radon rich |
Radon |
Corrosion of pipes, plumbing |
Corrosion, pH, lead |
Nearby areas of intensive agriculture |
Nitrate, nitrite, pesticides, coliform bacteria |
Coal or other mining operations nearby |
Metals, pH, corrosion |
Gas drilling operations nearby |
Chloride, sodium, barium, strontium |
Dump, junkyard, landfill, factory, gas station, or dry-cleaning operation nearby |
Volatile organic compounds, total dissolved solids, pH, sulfate, chloride, metals |
The odor of gasoline or fuel oil, and a near gas station or buried fuel tanks |
Volatile organic compounds |
Objectionable taste or smell |
Hydrogen sulfide, corrosion, metals |
Stained plumbing fixtures, laundry |
Iron, copper, manganese |
Salty taste and seawater, or a heavily salted roadway nearby |
Chloride, total dissolved solids, sodium |
Scaly residues, soaps don’t lather |
Hardness |
Rapid wear of water treatment equipment |
pH, corrosion |
Water softener needed to treat hardness |
Manganese, iron |
Water appears cloudy, frothy, or colored |
Color, detergents |
Well Water Testing

Well Water Must be Tested at Least Once a Year
The nature of well water is continually changing, and the most ideal approach to secure your family is to have your water tested. While it isn't required by the public authority, it's a fundamental move to keep your family protected. The EPA suggests that you test your well once a year for E. coli and coliform bacteria at total minimum. You ought to likewise test your water for radon and arsenic, minerals like iron, manganese, nitrate levels, and any volatile organic compounds to guarantee your home's water is protected.
If you do see a change of water quality such as the appearance, smell, taste, and the like, it's a smart thought to have your well tested, regardless of whether it hasn't been a year since the last test.
There are at-home, out-of-the-box tests you can buy and perform yourself. When you opt for this way, read what precisely the kit is testing for – not all tests are made equal.
Other Considerations for Well Water Testing
If there are small children, elderly adults living in your house, or even someone in your home who is pregnant or nursing, you may need to consider testing your well water. These segments of the population will be more sensitive and vulnerable to contaminants than the rest.
Here are other considerations that you may test your well water immediately:
- Water quality disturbance - when water changes in color, odor, and taste
- Well water part repair or replacement - a reaction to your well water system likely creates changes in the water quality
- Surrounding conditions altered - such changes like land disturbances, flooding, new construction, or industrial activity could affect your well water source
- Unknown groundwater problems - if an occurrence happens, you may need to undertake your well water testing
Lastly, groundwater with a direct influence from surface water could also influence the contaminants found in that water. This is because groundwater is easily influenced by the activities on the surface.
Why Disinfect?
Groundwater isn't 100% pure water. It gathered in the modest pore spaces inside sediments and the cracks inside the bedrock. Groundwater contains some broken-down minerals. There are many usually appearing microorganisms in groundwater.
As indicated by the National Ground Water Association (NGWA), most waterborne microorganisms are safe. Many are useful. A few, be that as it may, are pathogenic. Microbes, for instance, are from the intestinal tracts of individuals and warm-blooded creatures. For example, E. coli can cause ailment and death.
These pathogens may enter groundwater through septic tank floods. Another way is through contaminated runoff from forests, fields, and feedlots. Routine testing of the private well must be done. Chemical disinfection is essential to keeping a safe, private water supply. Also, one must maintain a strategic distance from the damage of pathogenic organisms. Disease with E. coli, for instance, can bring stomach distress, diarrhea, severe sickness, and even death.
Did you know?
- Groundwater serves as the gathering of rainwater, melted snow, and ice. They filter through soil, sediments, and bedrock to settle beneath the Earth's surface.
- A watershed draws water to a sewerage area. It incorporates the groundwater in the drainage area.
- Groundwater composes around 98% of the accessible freshwater on Earth.
- Consistently, the U.S. utilizes around 83.3 billion gallons of groundwater.
Treatment of Well Water
A Filtration System
A water filter is a device that you can use to remove many kinds of contaminants and impurities from your drinking water. A water filtration system could either use a chemical, a biological process, or a physical barrier to filter your drinking water. This is to make sure that it is safe to drink.
Under Sink Water Filters
- Eliminates foul odor and taste
- Removes sediment
- Removes chlorine and heavy metals
- There are less fluoride in the water
- There are no arsenic
- Reduces the nitrite and nitrate
- Less limescale
- Removes the bacteria and other microorganisms
Counter-top Water Filter
Water Softener
- Makes the hair and skin softer: Water softener makes the skin and hair soft, just like what it does with the clothes. Since it protects the skin gently, it can also affect the fabric you wear. As such, there will be an increase in general cleanness.
- Prolong the lifespan of appliances: Appliances will be protected since chemical and residue buildup will be prevented. Also, it can use lesser energy as it operates.
- Stain-free surface: With the use of a water softener, there will be stain-free surfaces. Also, the functionality of the soap will not be compromised. It will make the detergents effective, and it will reduce the amount needed to clean a particular area inside the house.
- Salt-based water softener
- Salt-free water softener
- Dual tank water softener
- Magnetic water descaler
A Distillation System

- You can make a DIY design by yourself. This can be achieved through the use of small rocks, sand, charcoal, and cloth. Use a cone-shaped object and put some charcoal on it. Then, create a filter by filling the cone alternately with sand and small rocks.
- You can boil the well water for 5 minutes. With this, all the bacteria inside it will be eliminated. However, boiling will not be able to remove the solids and other materials inside the well water.
- The use of chlorine drops or iodine tablets can effectively kill the bacteria in the well water. However, it can cause an undesirable taste.
- There are filters available which you can use during outdoor adventures. It usually uses a ceramic or carbon-based system to purify or clean the water.
Disinfection
Water Chlorination
Water chlorination is one of the many methods of disinfecting water. It deactivates the microorganisms by destroying their cell membrane. As soon as the cell membrane is weakened, chlorine can enter the cell. After that, it can disrupt respiration plus DNA activity.
Chlorination can be done at any moment. Each point of chlorine can control a different area of concern. It can offer a complete treatment as soon as the water enters the facility and leaves.
Moreover, chlorine has many purposes apart from disinfection. It can provide a residual that can avoid the growth of pathogens in the tanks. Berkey Water Filters can be your best option for treating well water. It can remove the most common contaminants from water better than any other gravity filter.
Chlorination is one process of disinfecting or treating the plumbing and well system with the use of chlorine. This can eliminate or kill different kinds of bacteria. It can kill the coliform bacteria, which indicates the presence of nuisance microorganisms in the water. When you disinfect a well, it will get rid of other water quality issues like nitrate contamination.
If you like to eliminate a one-time bacterial contamination case, then chlorination is an effective method to try. But if you have a long-term and ongoing problem, disinfecting it will only fix the issue temporarily. The issues that you have can be related to well construction, location, or maintenance. You have to identify the cause of this problem before you proceed.
Sometimes, the source of contamination is not clear. Some wells are hard to disinfect. These are the wells impacted by the flood, artesian wells, and wells situated near the pit. It is best to hire a licensed professional plumber or driller to do the work in these instances.
Full Chlorination
The full chlorination method can kill the bacteria that may be present in well water and aquifer. This is the standard method for the well drillers. They use this for persistent contamination of bacteria. Moreover, this method is used for waters that are affected by the flood.
Indeed, the complete chlorination technique is often done by professionals. However, you can also do it by yourself. Just gather the necessary equipment and follow the steps included in this article.
Determine When to Disinfect your Water Well
Consider disinfecting the well if the following signs occur:
- If the tests show that there are coliform bacteria
- If the flood or surface water gets inside the well
- If the well is newly drilled or connected to the plumbing system
- If there are new changes or repairs made to the existing well
- If the well pump is newly repaired or replaced
- You need to disinfect it as part of the yearly maintenance
If you are disinfecting your well due to floods or if you think that the surface water has entered, wait for it until it recedes. Have some time to let the overland flooding pass or for the ground close to your well to dry before you begin.
Safety Measures
If you wish to disinfect your well due to bacteria's presence, you can boil your tap water. You can also use bottled water for now during the entire disinfection process.
If your well is near your neighbor's wells, then the process can affect their well too. Make sure that you let your neighbors know that you are disinfecting your water well. With this, they can monitor for the smell of chlorine. Moreover, they can conduct the flushing of their system.
You have to take note that you must handle chlorine bleach safely and carefully. You must use protective clothing, gloves, and eyewear. Keep your pets and kids away from the area of the well during the entire process. Make sure that you do not leave the bleach containers lying inside your house.
Keep the containers secured so you can avoid inhaling the odor. If you are using bleach in crawl spaces, well pits, or well houses, see that you follow the health rules whenever you are working in tight spaces.
Preparations in Disinfecting a Well
To disinfect a well, you can use any household bleach. The chlorine present in the bleach can destroy the bacteria. You can check the label to see if the bleach contains any additives.
The method of disinfection is based on a chlorine concentration of 5%. This is the common concentration for bleach inside the household. If there are minor concentrations of chlorine, it will affect the entire disinfection process.
You must take note of the following before you begin the entire disinfection proceedings:
First, you must notify everyone in your home that you are going to disinfect the well water. Then, store enough water for all your members that can last up to 24 hours. For drinking water, you can use bottled water during the process. You can also fill the water containers with well water. However, you have to take note that you must boil the water before drinking. Meanwhile, you can use the bathtub to store water for household chores.
Since bleach can lose its strength after some time, you must make sure to buy unscented and regular chlorine bleach. You must also bypass or disconnect water treatment or filters. This includes reverse osmosis, water softeners, and carbon filters. Finally, you must shut off the power of your water heater.
Steps on How to do a Full Chlorination
To fully chlorinate the well water, you have to pump 1,500 to 2,500 liters of water from the well to a clean water tank. Make sure that you don’t use containers that have previously help pesticides or fuel. This can contaminate your water.
Next, put 10 liters or 2 ½ gallons of bleach in your tank. Make sure that you remove the cap from the casing of the well. Then, you have to mix another 10 liters or 2 ½ gallons of bleach once again in 15 liters or 4 gallons of water. Now, you have to pour the mixture into the well. You can use a funnel to control the direction and the flow of the bleach. See to it that you don’t let the bleach run on the wire connections.
After you pour the bleach, rinse the well water casing for a few minutes using a garden hose connected to the water supply that is disinfected. With this, it can circulate the water inside the well. When you are done, turn off the hose.
Give an hour for the well to rest. This time will allow the chlorine to mix well with the water.
Then, you have to pour gradually the 1,500 to 2,500 liters of water plus the bleach mixture from the tank once again into the well. Control the flow so the bleach and water will not overflow the casing on the ground.
Then, tighten and replace the cap once again. Now, you have to open the faucets inside your house. Flush the toilets until you can smell the chlorine. This will enable you to circulate chlorine throughout your water system. Now, you can turn off the faucets.
Turn off all the water supply in your toilets. You can use the stored water if you wish to flush the toilets.
Make sure that you let the bleach sit in the system for 12 to 24 hours. The longer the bleach remains in your water system, the more time the chlorine can have to eliminate the bacteria on it.
Finally, you have to keep the level of chlorinated water that proceeds into your sewage system at a minimum during the disinfection process. Excess chlorine can affect the operation of the septic field and tank.
Our Recommendation

The Well owners must embrace a multi-obstruction way of protecting their drinking water. Protection must incorporate standard monitoring for waterborne pathogens and raise disinfection when required. It's a duty to keep from sickness and well-being of families depending on private well water.
Crown Berkey 6 Gallon Water Filter
Berkey Light Water Filter 2.75 Gallons
Like other Berkey Water products, this can remove viruses, pathogenic bacteria, and pharmaceuticals of up to 99.9%. It includes 4 Black Berkey water filters. It has a flow rate of 4 gallons per hour under regular use.
How to Additionally Protect Your Well Water from Pollution
Unnatural Sources
To protect your well water, it’s essential to know how to identify potential sources of contamination. One way is managing the activities near the water source. For domestic use wells, this includes ensuring to keep away from sinkholes and the septic systems, a great source of hazardous chemicals.
Here are steps you may need to take note of to protect your well water:
- Slope the area around the well. This is to drain the surface runoff away from the well.
- Install a well cap or sanitary seal. This is to prevent unauthorized use of, or entry into, the well.
- Keep accurate records of your well maintenance. This includes disinfection or sediment removal, that may require the use of chemicals in the well.
- Hire a certified well driller. For any new well construction, modification, or abandonment and closure, a professional knows the best precaution to prevent contamination in your well.
- Avoid mixing hazardous chemicals near the well. This includes using pesticides, fertilizers, herbicides, degreasers, fuels, and other pollutants.
- Do not dispose of wastes in dry wells or abandoned wells. Rainwater runoff may discharge to your well.
- Do not cut off the well casing below the land surface. It makes an efficient well water transport; it supports a good and clean water source to your household.
- Pump and inspect septic systems. This can be scheduled on a monthly or quarterly basis. However, it can be done as often as recommended by your local health department.
- Never dispose of harsh chemicals, solvents, petroleum products, or pesticides in a septic system or dry well. Just like wastes, rainwater runoff may discharge residue into your well water.
- Periodically inspect exposed parts of the well for problems such as:
- Cracked, corroded, or damaged well casing
- Broken or missing well cap
- Settling and cracking of surface seals
- Regularly check the integrity of any above-ground and underground storage tanks that hold home heating oil, diesel, or gasoline on your property. When forgotten, it can even cause fire at once.
- Check with your local health department or environmental agency to ensure activities and industry on or near your property are set at a safe distance from your well. This should be noted to avoid any inconvenience for both you and the operating industry.
Natural Sources
Flooding, landslides, earthquakes, and other natural disasters can have an impact on the overall safety of your well water. Contaminants incurred through such natural occurrences can also adversely affect your well water. If you suspect your well is contaminated after heavy flooding or another natural disaster, contact right away your local state health department or environmental agency for advice. They may need to inspect and test your well. If possible, a contractor with experience in servicing drinking water wells is heavily impacted by natural disasters.
Water well flood response steps:
- Stay away from the well pump while flooded to avoid electric shock. The contractor wearing the proper personal protective equipment can only be the one to prevent this electric shock.
- Do not drink or wash from the flooded well to avoid becoming sick. Water is still unsafe until inspected and treated by a contractor or expert.
- Get assistance from a well or pump contractor to clean and disinfect your well before turning on the pump. Because of the natural disaster, it will be likely that water is highly contaminated and thus needs immediate treatment.
- After the pump is turned back on, pump the well until the water runs clear to rid the well of floodwater.
- If the water does not run clear, get advice from the county or state health department or extension service. They know exactly the following steps, such as contacting the EPA.