List items for Private Well Program Hot Topics
The Iowa DNR Private Well Program provides regulatory oversight on different types of vertical boreholes and borings that meet the legal definition of "well" in our state.
These well structures include:
- Private potable water supply wells, such as household and acreage wells. Basically, any water supply that is not regulated as a Public Water Supply.
- Private non-potable wells used on farm and in industry, such as: livestock wells, commercial water supply wells, manufacturing and processing water supply wells; cooling tower water supplies; and any other water well that supplies water for non-potable use.
- Irrigation wells for all uses, including row crop irrigation, turf production, water for truck gardens, and home yard irrigation.
- Temporary and permanent dewatering wells used to lower water tables to allow for subsurface construction or stabilization.
- Geothermal Heat Exchange (GHEX) water supply and reinjection wells used to exchange heat from a structure to the groundwater.
- GHEX closed loop boreholes used to exchange heat from a structure to the earth.
- Temporary and permanent test, observation, and monitoring wells used to determine the groundwater quantity or quality or to monitor water groundwater levels.
- Temporary and permanent piezometer or monitoring wells used to look for contaminants in soils or groundwater.
- Direct push type technology for groundwater sampling when a temporary or permanent well casing and/or well screen is installed in the ground.
The Private Well Program rules only apply to water supply wells and systems that serve fewer than 25 individuals on a daily basis. If a water system serves water to 15 or more service connections (like campground spaces or condos) or serves at least 25 individuals, the system requires management under the public water supply rules.
Examples of smaller water systems that meet the definition of Public Water Supply definition include:
- rural churches
- rural restaurants, bars and entertainment venues
- rural industrial or manufacturing facilities
- rural trailer parks
- rural wineries
- rural conference or meeting halls
- certain rural day care facilities
- any other place that is not connected to a municipal or rural water public water supply where the public gathers or conducts business and 25 or more individuals have access to the water.
Public Water Supplies have specific federal requirements to help protect the health of the water users and the integrity of the water system. These requirements address the design of the water well and water treatment systems as well as the storage and distribution systems. The design and construction of these facilities must follow approved specifications and standards as determined by the Iowa DNR Water Supply Engineering section. In addition, a Public Water Supply must manage and monitor the water system according to an operation permit issued by the Iowa DNR Water Supply Operations section. These steps help ensure that the water available and used by the public is safe for consumption. To find out if you are a Public Water Supply or for more information regarding Public Water Supply requirements, contact the IDNR Water Supply section at 515-725-0282.
The Private Well Program provides administrative oversight of the statewide private well program. This includes rule development and interpretation, working cooperatively with local county governments to administer the private well program at a local level, working with well contractors regarding minimum and appropriate standards for well services, and providing guidance to private well owners and other citizens.
The goals of the Iowa DNR Private Well Program are to:
- Protect the groundwater resources and public health by establishing well construction, well maintenance and well plugging standards.
- Establish and maintain well contractor certification requirements for all types of boreholes that meet the definition of "well."
- Provide a source for accurate and meaningful guidance to help answer questions pertaining to the private well program areas.
- Have all wells constructed to appropriate minimum standards.
- Ensure competent Iowa DNR Certified Well Contractors are on-site in direct control of each well service provided.
To help achieve the program goals, the Private Well Program works with local county environmental health staff to issue private well construction permits at the local level. This relationship is an important part of the program and helps to ensure that there are local contacts to help residents with permitting and construction information needs.
The Iowa DNR private well construction permit is issued by your local county on a web-based private well permitting system known as the Private Well Tracking System (PWTS) . This system electronically records well permit information and records and tracks well water testing reports, well renovation reports, and well plugging reports.
The Private Well Program also works with the Iowa DNR Operator Certification Section to help Certified Well Contractors with their certification questions and testing, and help training providers determine if a training event will qualify for continuing education units (CEUs) or "contact hours" for Iowa's well contractors.
You will find additional private well related topics in the left hand column or menu area of this web page. There are also useful links at the bottom of each web page for common private well topics. If you cannot find the information you are looking for, please contact us using the information at the bottom of this page.
Basic facts that private well users should know:
You are responsible for your own water testing.
- Local county environmental health departments can assist, but you need to contact them to initiate water testing.
- Find out more about water well testing on DNR's Well Testing website.
Lab analysis is the only way to know if your water supply is safe.
- You cannot tell if your water is safe by look, taste, or smell.
- Find our more from the CDC.
Contaminated groundwater can cause illness.
- This is true for everyone - especially young children, the elderly, and those with compromised immunity.
- Find out more about what may be in unsafe water from the CDC.
Every private well used for consumption should have the well water tested at least once each year.
- In addition, test your well water when:
- the well is brand new,
- anytime you have your well, well pump, or water system serviced, or
- if you notice a change in the way the water looks, smells, or tastes.
Some aquifers cannot provide safe drinking water.
- Although many of Iowa aquifers can provide safe water when a well is properly constructed, some shallow aquifers and shallow karst bedrock regions have high levels of nitrate, bacteria problems, and potentially other contamination from land based sources.
- Find out more about karst bedrock water sources.
Unused, non-plugged, or improperly plugged wells can cause issues with your current well.
- Old wells may not be located or constructed properly. This means they may allow surface water and very shallow groundwater a direct connection to the aquifer serving your current well. This can create water quality issues in your current water supply regardless of the well's age and construction.
- Find our more about well plugging and why it is important.
Water treatment may be an option.
- Water treatment options depend on the type of contaminant(s) present, the level of the contaminant(s), and the amount of water needed each day.
- Find out more about water treatment options.
All wells need periodic inspection AND preventive maintenance.
When hiring a contractor for any well services, make sure they are properly certified by the Iowa DNR.
- State law requires all well contractors to be certified by the Iowa DNR. The certified individual must be on-site while all well services are being performed.
- Find out more about Iowa DNR Well Contractor Certification.
- Check to see if your well contractor is Iowa DNR Certified.
You should always have a contract when hiring anyone for well services.
- Contracts help protect all parties.
- Find out more about hiring a well contractor.
A well construction permit may be required.
- Well construction permits are required for all new water well and geothermal loop installations, and when certain types of well reconstruction is planned.
- Find out more about Iowa DNR well construction permits.
Fact sheets and additional well resources.
- Wellowner.org - An industry leading source of information on water wells.
- "Is your well water safe?" - a publication from The Private Well Class.
- CDC Private Well Resources
Private Well Testing Information
Iowa's Private Well Grants Program (PWG) provides free water testing to all private well owners and users. The PWG program is a collaborative program with administration through the Iowa Department of Health and Human Services (HHS), and technical assistance provided by the Iowa DNR's Private Well Program. To learn more about the PWG Program, please visit the HHS webpage at Private Well Grants (PWG).
Free water testing is provided for the analytes listed below. The Iowa DNR recommends that all private well owners have their water tested at least annually. To get your private well tested, please contact your local county health department.
- Bacteria/E.coli/coliform (annually)
- Nitrate (annually)
- Arsenic (every 3 years)
- Manganese (every 3 years)
- Private Wells and PFAS Overview (requires pre-approval from the DNR)
Private Well Services - Grant money available
In addition to private well testing, the PWG program offers funding for the private well related services listed below.
- $400 - Shock Chlorination (Form 542-0503)
- $600 - Well Assessment (Form 542-0502)
- $700 - Well Plugging (Form 542-1226)
- $400 - Cistern Plugging (Form 542-1226)
- $2,000 - Well Reconstruction or Renovation (Form 542-1519)
Please follow these steps:
- Contact your county health department and notify them that you want one of the above services.
- Contact a DNR certified well contractor to perform the work. The bullets below tell what type of work each type of contractor can perform, and links to a list of those contractors sorted by their city of residence.
- Well Drillers - Shock chlorination, well assessments, reconstruction, well plugging (except pump and plumbing work)
- Pump Installers - Shock chlorination, well assessments, reconstruction (upper 10 feet only), well plugging
- Well Pluggers - Can only plug Class 1 and Class 3 wells - all other well plugging must be performed by a well driller or pump installer
- Non-certified contractors or non-certified people are not legally allowed to perform well services in Iowa, so always double check with the person you hire to ensure they are certified by and on the lists linked above.
- Tell the contractor you are seeking Private Well Grants funds and will require the following documents following completion of work:
- Fully completed DNR form based on the type of work (see forms linked above)
- Itemized "paid" invoice
- Submit the documentation items to your county health department
- The county will reimburse you directly once your required forms and invoice have been reviewed and approved.
More Information
If you are seeking testing for analytes that are not listed above, please contact your county health department to discuss your situation. If the county thinks additional testing is needed, the county may be able to contact the State Hygienic Laboratory to seek approval for further testing of more complex contaminants, or provide additional guidance to improve your water quality. Please see the State Hygienic Laboratory Private Well Water website to learn more.
Private Well Grants - Guidance Document for Qualifying Services - this document provides detailed information regarding what types of wells and specific services qualify for PWG funding.
Is your well water safe to drink?
Here are some questions for you. Do you test your private well water? If so, do you test it at least once each year? If not, how long has it been since you last tested your private water supply? When your water experiences changes in the way it looks, smells or tastes, do you have a water test performed?
In general, many of Iowa's aquifers will provide safe and plentiful drinking water for your rural home or farm. Keeping that in mind, did you know that not every aquifer provides safe drinking water, or that well construction varies with the age of well and the well contractor used?
Safe drinking water is a complicated equation that includes the following variables:
- The well location and land use nearby the well site,
- the local geologic setting and aquifer used to obtain the water,
- the protective features/design of the well itself,
- the experience of a well contractor to recognize and overcome the potential local water quality issues, and
- the level of routine maintenance and water testing performed on the well by the well owner or well contractor.
This means that not all wells are constructed equally or access the same quality of water as other nearby wells. Changes in land use, well design, construction, and depth, can make a difference in well water quality.
The only way to know if your water supply is safe is to have the water tested. Any given year, less than 7 percent of Iowa's private well owners test their water supply. Within this group, many don't test their wells regularly.
The Iowa DNR and many public health agencies recommend that you test your private water supply at least once each year, and anytime you notice water quality changes - things like water color, clarity, taste, smell, or sediment.
When you test your well water, keep in mind that the contaminants you should test for can vary depending on the well depth, the type of construction and age of the well, and the well's location. Sometimes testing for the basics - bacteria, nitrate, arsenic, and manganese - may not be enough.
You can contact your local county environmental health department or a drinking water testing laboratory to inquire about well water testing that may be needed based on your location and concerns.
The Iowa DNR has guidance available to help you understand the importance of sampling and testing your private water system. Check out the Frequently Asked Questions section of our Well Testing webpage for more information. To learn how you can qualify for free basic water testing, please contact your local county environmental health office and ask to participate in the Grants to Counties Well Testing Program.
Iowa Department of Public Health has a IDPH Private Well Water Data Tracking Portal. You can use the tool to review private well water quality around the state based on sample laboratory analysis.
The Center for Health Effects of Environmental Contamination (CHEEC) has a well forecaster webpage available that helps you understand the basic water quality in your region. Find out more at the Iowa Well Forecasting System webpage.
Water Quality should be on the minds of all private well users. Local water quality is a product of the geological setting your well is located in, the well's construction, and land use activities in your region and water shed.
The following information provides a basic understanding of well water quality for the contaminants commonly tested for in private water supplies.
Nitrate
Nitrate in well water can be an issue with shallow water supply wells no matter where you live in Iowa. But did you know that there are places where deeper wells can also have high levels of nitrate?
If you live in one of the pink or yellow shaded areas of the Karst bedrock area map, you are located in a Karst area. Constructing, maintaining, and using a well in Karst areas may be complicated by water quality issues. Wells in these shallow aquifers may contain high levels of nitrate and other chemicals that may cause health concerns. The only way to determine the quality of your well water is to have the water supply sampled and the water tested at a certified drinking water laboratory.
The Iowa DNR has basic information that can help you understand how your well may interact with shallow groundwater in these areas. Please see the Shallow Wells in Karst webpage and the Private Wells in Karst Areas fact sheet for additional information.
Bacteria
Each day, we come into contact with millions of bacteria. Nearly all of them are harmless. But, some of these organisms are responsible for waterborne illnesses.
Total coliforms are a group of bacteria that are mostly harmless and found in soil and water, as well as the intestines of warm blooded animals. The presence of total coliforms in drinking water that comes from a water supply well can indicate that more dangerous bacteria - particularly fecal coliforms - have a pathway into the well and may also contaminated the water system.
Disease-causing bacteria, such as E. coli, can cause gastrointestinal illnesses, vomiting, diarrhea, and severe dehydration. It can also be life-threatening for infants, children, the elderly, and anyone who has a compromised immune system. Water that contains E. coli should never be used for any purpose where human contact or ingestion is a possibility.
Arsenic
Arsenic is an element that occurs naturally in rocks and soil. This section provides information about areas where arsenic testing has been completed on private wells, how you can obtain testing of your water, and what to do if you find your water is high in arsenic.
Iowa DNR's Arsenic testing recommendation:
- We recommend that all private well users have their well water tested for arsenic at least one time. If your arsenic level is elevated or high, you may need to perform arsenic testing more frequently. This allows you to monitor the level of arsenic and make informed decisions, like when to install a water treatment system to remove arsenic, or when to stop drinking the water.
Where is Arsenic found in Iowa's groundwater?
- Prior studies indicate that arsenic is present in the groundwater at some level in many areas of our state.
- Voluntary statewide testing of private wells looking for arsenic began in 2015. This information has provided us with a better understanding on where arsenic may be a problem, but many areas of the state have not been tested.
- Further testing will help inform more well users of potential risk, increase our knowledge regarding which aquifers are affected, help well owners and well contractors predict where arsenic may be a problem, and potentially develop strategies on how to construct wells so they have lower levels of arsenic.
Arsenic testing.
- Private well owners or users can contact your local county sanitarian and ask to arrange a free arsenic test through the Grants to Counties well program.
- You can also contact the State Hygienic Laboratory (1- 800-421-IOWA) to obtain the test kit and pay for the testing yourself.
Treatment options when your arsenic level is too high.
- If you find that you water contains too much arsenic, you have some choices on how to manage your drinking water.
- Information about arsenic and water treatment options can be found in Water Treatment for Dummies published by the Water Quality Association.
Other helpful resources for arsenic information:
- EPA's arsenic rule webpage
- Water Systems Council wellcare® arsenic fact sheet
- National Groundwater Association arsenic fact sheet
- Iowa DNR Arsenic in Drinking Water information sheet
The resources below provide information on water treatment.
Well Water Quality and Home Treatment Systems, by The State Hygienic Laboratory at the University of Iowa. This publication is an overview of systems commonly used to treat water quality problems.
Water Treatment for Dummies is a fun and fact filled booklet provided by the Water Quality Association. It takes the complex concepts regarding water treatment and makes them easier to understand. This information will help you be more knowledgeable and confident in understanding water treatment needs and devices. The booklet is available as a free download.
Other helpful links:
Lead in Private Drinking Water Supplies - Important Information You Should Know
Is lead in my drinking water something I should worry about?
The majority of the risk for lead in private water systems comes from the plumbing components that make up your water system. Some of the components may be made of materials that contain lead. Under the right conditions, the lead in these items can leach into water contained inside the pipes. It's important to keep in mind is that many homes in our state were constructed before 1986, the year when lead standards were first established for plumbing components used in homes and businesses.
Many brass components used in homes may contain lead, depending on the brass used. In the past, lead-tin solder was also used for connections in copper plumbing as part of an industry standard. The current lead-free standards, effective in 2014, require the amounts of lead in plumbing and fixtures be much lower than the previous standards.
We recommend that all private drinking water supplies be tested for lead. The only way you will know if you should take action to protect yourself and your family from long term health effects associated with lead is to test your water supply.
The action level for lead contamination in drinking water is a level of 15 parts per billion (ppb) or more. The maximum contaminant goal for lead in drinking water is zero. For private water supplies, we recommend the same action level and goal to ensure that your water is safe. Keep in mind that the only way to know if your water supply is safe is to collect a sample of your water and submit it to a drinking water lab for analysis.
Sampling your water supply is something that you can do yourself, or you can contact your local county environmental health department for assistance.
Water sample test kits are available through The State Hygienic Laboratory (SHL) or your local drinking water laboratory. To obtain a sample kit from SHL, call 800-421-4692. A list of other drinking water laboratories can be found at the following link: List of drinking water laboratories.
The typical sampling protocol is to use the water the night before the test as you normally would, then allow the water to sit in the pipes overnight. The sample is collected from the cold water tap in the kitchen or bathroom sink the first thing in the morning before any water has been used in the house.
How Does Lead Enter Drinking Water?
Lead is a toxic heavy metal that is harmful if inhaled or swallowed. It can be found in air, soil, dust, food, drinking water, and products such as lead-based paints. Lead typically enters drinking water through plumbing materials. All homes, regardless of their age, may have plumbing that contains lead. However, homes built before 1986 are more likely to have lead pipes, fixtures, and solder. Brass faucets, fittings, and valves, including those advertised as lead-free, may contribute lead to drinking water. The law allows pipes, fittings, and fixtures with up to 0.25 percent weighted average of lead to be identified as lead-free. Brass faucets and fittings and lead solder can leach lead into water, especially hot water.
How can lead affect your health?
Lead can cause serious health problems if too much enters the body. Pregnant women, infants, and young children have the highest risks of negative health effects from lead exposure. Lead exposure in children under the age of six has been linked to damage to the nervous system, learning disabilities, shorter stature, impaired hearing, impaired formation and function of blood cells, and lowered IQ. During pregnancy, lead is released from bones as maternal calcium and is used to help form the bones of the fetus. This can result in serious effects to the mother and her developing fetus, including reduced fetal growth and premature birth. Adults exposed to lead could develop kidney problems or high blood pressure. Lead is stored in the bones and can accumulate in our bodies over time and be released later in life. If you are concerned about lead exposure, ask your health care provider about blood testing testing.
How to Reduce Your Exposure to Lead from Drinking Water
There are several steps that you can take to reduce your and your family's exposure to lead in drinking water.
- Run your water to flush out lead. The longer water sits in your home piping, the more lead may leach from lead-containing fixtures. Before drinking, flush your pipes for several minutes by running your tap, taking a shower, doing laundry or a load of dishes.
- Use cold water to cook and to prepare baby formula. Do not cook with or drink water from the hot water tap; lead dissolves more easily into hot water. Do not use water from the hot water tap to make baby formula. Remember, boiling water DOES NOT remove lead from water.
- Identify and replace plumbing fixtures that contain lead. Brass faucets, fittings, and valves, including those advertised as “lead-free,” may contribute lead to drinking water. The law allows pipes, fittings, and fixtures with up to 0.25 percent weighted average of lead to be identified as “lead-free”. Plumbing materials that are lead free can be identified by looking for lead-free certification marks.
- Consider using a filter certified for lead removal. Read the package to be sure the filter is approved to reduce lead. Verify the claims of manufacturers by checking with independent certifying organizations that provide lists of treatment devices that they have certified.
- Regularly clean faucet aerators. Aerators, the screens at the end of faucets, can collect debris. Rinse out collected materials to reduce debris accumulation.
- Use an alternative source. Until the lead in drinking water is mitigated, you should use a different source of drinking water (i.e., bottled water).
What Steps Should I take if Lead is Found in my Water System?
For a system with a lead level above zero, but 15 ppb or less:
- Decide if you want to obtain all of your drinking water from a known safe source, or add water treatment to lower the lead level closer to the maximum contamination level goal of zero.
- Understand the corrosivity of your water and keep it as low as possible because corrosive water can cause lead to leach from plumbing materials that contain lead. Water treatment may be required to buffer the water and reduce the water’s corrosive nature.
- Test the water supply periodically to monitor lead levels in your home to ensure that the level is stable or declining. If the lead level increases, additional action is required on your part to protect your health. These steps may include water treatment or replacing the water you consume with water from a known safe, lead-free source.
- Determine what improvements can be made in your home’s plumbing that may result in lower lead levels.
- Test your water system after water treatment anytime you install a new well or change water treatment on an existing well.
- or -
For a system with a lead level over 15 ppb:
- Use an alternative source for drinking water or provide point-of-use water treatment for the water tap location that supplies all of the home’s drinking water – keeping in mind that the maximum contamination goal for your water is zero.
- Increase how often you sample. We suggest testing for lead every 6 months so that you can closely monitor the lead levels in your water system.
- Educate yourself on lead exposure and health risks. You should understand health effects of lead, the sources of lead in drinking water, and actions you can take to reduce exposure to leads in drinking water.
- Reduce the corrosivity of the water in the system. Corrosive water can cause lead to leach from plumbing materials that contain lead.
- Consider replacing the home’s plumbing to remove all components that contain lead and replace them with new components labeled as "lead-free" or "low lead". This includes lead solder used to join pipes, brass faucets, brass fittings, and brass valves that may contain lead.
Additional Resources
For additional information on lead in water supplies, please visit EPA's website at www.epa.gov/lead, call the National Lead Information Center at 800-424-LEAD, view lead information at the Water Systems Council wellcare® Information fact sheet page, or contact your local public health department.
The installation of all high capacity wells requires the collection and submission of specific information before a Water Allocation and Use permit can be issued and the well put into high capacity service. High capacity wells are wells that withdraw 500 gallons per minute or more from groundwater sources.
The information that must be submitted includes a detailed inventory of nearby wells, a complete set of borehole cutting samples, a detailed well log from the test well or production well, and a well pump test to verify the characteristics of the well, like the well's maximum capacity, pumping and non-pumping water levels, and potential for well interference with nearby wells.
Depending on well location and aquifer used, an applicant may be required to conduct an extended pump test to better define the effects the proposed water withdrawal has on nearby wells. If this test isn't performed at the time the well is drilled, the well owner will need to hire a well contractor to perform this step.
The pump test must be long enough in duration to achieve a stabilized water level in the test well or production well, and in the required observation well(s). It can take up to 72 hours of continuous test pumping to achieve a stabilized water level. This is why it's important to plan ahead when a high capacity well is in your plans.
During the test pumping, water level measurements are taken from the production and observation well(s) at predetermined intervals and the information is accurately documented on a pump test log. This helps determine how much influence the new high capacity well has on the aquifer and nearby wells. Additional details can be found in Iowa DNR Technical Bulletin 23.1.
All pump test information is used to help the high capacity well owner secure a Water Allocation and Use Permit, which is a permit issued to convey the legal right to pump and use 25,000 gallons or more of water a day for a beneficial purposes, like crop irrigation or industrial processes.
A Water Allocation and Use Permit is required for any person or entity that withdraws 25,000 gallons or more of water in a 24-hour period. The permit lists the amount of water that can be withdrawn each year by the permittee and is valid for up to 10 years. The permit also requires that a Water Use Report be submitted to the Iowa DNR each year.
For more information about Water Allocation and Use Permits or to apply for a permit, refer to the Water Supply Engineering Water Allocation and Use website.
The Illinois State Water Survey and the Illinois Water Resources Center at the University of Illinois have established a nationwide training initiative funded by the Rural Community Assistance Partnership (RCAP) through a grant from the EPA.
The Private Well Classes are designed to help you understand the basic science of water wells and inform them of best practices to maintain and protect the water supply. These basic tools can help you make informed decisions regarding your water supply. This helps ensure a safe drinking water supply and extend the life of the well.
The training includes classes for those who own or use private water supply wells, and individuals who are just curious about how wells function. The classes are part of an online learning experience that includes monthly emails with class lessons that are reinforced by monthly webinars you can - AND - you can attend as often as you wish, even after the emailed class materials have ended.
Click here to find out how the classes work.
The course include a Resource Library and Multimedia Learning area to provide specific learning tools.
Or you can use the YouTube Channel for Private Well Classes found at the following link: https://www.youtube.com/user/privatewellclass.
There are a number of areas in the state where it's not possible to install water supply wells or geothermal wells and boreholes. The most common reasons for this type of well drilling restriction are local groundwater contamination or aquifer water level protection in specific areas where an aquifer is experiencing high rates of water use.
There are two methods used to manage drilling restrictions - Environmental Covenants (ECs) and Protected Water Source Areas (PWSAs). Both methods essentially achieve the same result - limiting or restricting drilling or access to the groundwater.
Environmental Covenants (ECs)
Environmental Covenants (ECs) are the most common form of restriction and can be associated with many types of contamination. A few examples include Leaking Underground Storage Tank sites - also known as LUST Sites, sites contaminated with industrial products or wastes, industrial landfills, and old dry cleaning facilities. Keep in mind that if multiple small areas of contamination are in close proximity to each other, the overall size of an EC can be quite large - up to and including an entire community.
ECs are developed through agreements with citizens or local governments. They are used when local drilling activities may cause contaminant movement. Contaminants may move off-site into currently uncontaminated zones, move from an area of higher contaminant concentration into an area known to have a lower concentration, or move vertically. This movement can result in contamination of the local aquifers and nearby water supply wells.
If drilling activities cause problems with a contaminated site, it increases the liability for the owner of the site, the owner of the property where the drilling is taking place, and the well contractor performing the drilling.
The department maintains a list of the communities that have ECs. You can use this information to help identify areas where drilling may not be possible. The following link will open a PDF list of the current communities that maintain an Environmental Covenant.
Protected Water Source Areas (PWSAs)
Protected Water Source Areas (PWSAs) are developed when the protections needed are greater than can be provided by using ECs, or when the area of contamination is large. PWSAs are developed in state rules which provide for a higher level of management, tracking, and enforcement.
A list of current PWSAs can be found in 567 Iowa Administrative Code Chapter 53.
Water Quality Testing After Power Outages
During power outages - especially long outages - private water supplies will likely lose water pressure. When your water system loses pressure, there is an increase in risk of bacterial contamination because of potential system leaks or frost pit well locations. A faulty pipe, pipe connection, or water access point may allow contaminated water to be seep in to or be drawn in to system piping when there is no water pressure.
The Iowa DNR, Iowa Department of Public Health, and the State Hygienic Laboratory recommend that you have your private water supply tested for drinking water safety after power outages where your water supply loses pressure.
No-cost private well water testing is available under the Grants to Counties Program through your local county health department.
If your water system has lost all pressure during a power outage, please consider using an alternative water source known to be safe - like bottled water - until your water testing indicates the well water is safe to consume.
Manganese testing for private well water is now available in 97 of Iowa's Counties under the Grants to Counties Water Well Program. This program is managed by your local county environmental health sanitarian and where available, is performed at no cost to the well user(s).
Learn more about manganese at the CDC ATSDR information webpage.
Learn more by contacting your local county environmental health office.
Learn more about counties grant program on the Iowa Department of Public Health program webpage.
Click the following link to view a map that indicates areas where private well manganese testing has taken place in Iowa.
The Iowa DNR's General Permit 6 (GP6) Well Siting Tool allows landowners, well contractors, and engineers to performing desktop evaluations of well sites and determine if a well location will likely require discharge management through GP6. It also helps define which locations likely cannot support well construction discharge due to close proximity of Outstanding Iowa Waters (OIWs).
Users can access map layers to help identify distances to surface waters and OIWs, locations of sinkholes, karst areas, land slope, and more. Maps may also be printed for use as a resource.
To open and use the GP6 Well Siting Tool, click on the following link: https://programs.iowadnr.gov/maps/gp6/.
The GP6 Well Siting Tool works with Google Chrome and Mozilla Firefox web browsers. Currently, it is not compatible with Internet Explorer.
To learn more about GP6 and the resources available to help you comply, please see the General Permit 6 webpage.
Rural properties that come up for sale commonly have one or more water wells located somewhere on the parcel. Many times, a well provides the only drinking water supply available for the property. Did you know that there's more to understanding the safety and reliability of the drinking water supply than taking a water sample and sending it to a testing lab?
The Private Well Class has web based training that will help you understand what you should look for when a property has one of more water supply wells. Videos are available for your convenience at the following You Tube video link: What Realtors need to know about homes with well water.
Iowa DNR Fact Sheets
The DNR has four fact sheets that touch on the common topics that well owners frequently ask during while contacting our office. The topics include:
- Private Wells In Karst Areas - Shallow well water quality issues that can occur in Karst bedrock.
- How To Sample Your Well Water - How to obtain well water sampling for your private well.
- Understanding Your Water Test Report - What to look for when reading your water test report.
- Protecting Your Private Well - Information about managing your well to improve its protections.
For additional information on well water testing, please see our Private Well Testing webpage and Private Wells In Karst webpage.
Water Systems Council wellcare® information sheets
The Water Systems Council has developed a complete library of water well care information sheets to educate well owners about the basics of their well system, the importance of water well maintenance, keeping good records, water well testing and understanding your results, and how to protect and conserve your water supply for years to come. The wellcare® information sheets can be downloaded in Adobe Acrobat (PDF) format and printed from the following website.
https://www.watersystemscouncil.org/water-well-help/wellcare-info-sheets/
National Groundwater Association Information Series
The National Groundwater Association (NGWA) Information Series fact sheets are also a great source if information. The NGWA is comprised of professional water well contractors, water treatment contractors, engineers, geologists and hydro-geologists, and scientists. Their library of consumer information fact sheets will help you learn more about the groundwater and the sub-systems that make-up a water supply system. The fact sheets can be downloaded in Adobe Acrobat (PDF) format and printed from the following website.
Iowa DNR resources:
- Local County Environmental Health Staff
- Iowa DNR Private Well Testing
- Iowa DNR Arsenic Information Sheet
- Iowa DNR well construction permit information
State Hygienic Laboratory resources:
EPA Resources:
Water Systems Council Resources:
- Water Systems Council - A Well Owner's Manual
- Water Systems Council wellcare® fact sheet series f
- Do you have questions about your well?
- Sharing a well with another home
- Renting a Home with a Private Well
- What every Realtor should know about private drinking water wells
- A Real Estate Agent's Guide to Buying or Selling Homes with Wells
- Home Inspectors' Guide to evaluating water wells
Other Resources:
- Private Well Owner Resources by the National Groundwater Association (NGWA)
- Information for Well Owners from Wellowner.org
- United States Geological Survey National Water-Quality Assessment
List items for More Private Well Program Hot Topics
The Private Well Permitting Stats pdf provides the number of state private well construction permits issued each year in Iowa between 2002 through 2018. Both water supply wells (WW) and geothermal loop boreholes (GHEX) are shown.
You can take the following steps to help protect your water supply well and the groundwater used by you and others:
- Maintain your well by inspecting, repairing, and replacing sanitary items as needed. This helps the well protect your water supply.
- Limit your use of pesticides, fertilizers, or other chemicals that may impact the groundwater.
- Store all farm chemicals in leak free closed containers, placed far from the well site. Apply all chemicals in strick adherance to the label directions, and never dispose of unneeded products onto the ground, or in storm sewers, sanitary sewers, or water ways.
- Store all household chemicals away from the well and in leak-free containers. Apply all chemicals in strick adherance to the label directions, and never dispose of unneeded products onto the ground, or into storm sewers, sanitary sewers, or water ways.
- Use backflow prevention devices on all hydrants and water spigots - especially if used to mix any type of contaminant.
- Take used motor oil and antifreeze to a recycling center.
- Be careful when you are doing any activity around the well so you don't damage the well cap, well wire conduit, well casing, or well vent. Even minor bumps can cause unseen damage that can affect well water quality.
- Respect the resources you use. Conserve your water even if you don't have to, because water is a valuable resource and the cost of providing clean, safe water will only increase if we all don't do our part.
The U.S. Drought Monitor (USDM), provided by the National Drought Mitigation Center at the University of Nebraska-Lincoln is a map that is updated each Thursday to show the location and intensity of drought across the country.
Learn more by visiting the Drought Monitor website.
The USDM uses a five-category system to display drought conditions. There are labeled:
- Abnormally Dry or D0, (a precursor to drought, not actually drought)
- Moderate (D1)
- Severe (D2)
- Extreme (D3)
- Exceptional (D4) Drought
Drought categories show experts' assessments of conditions related to dryness and drought including observations of how much water is available in streams, lakes, and soils compared to usual for the same time of year.
Know the Facts Before You Hire Someone to Work on Your Well
In Iowa, an Iowa DNR Certified Well Contractor must be on-site and in direct control of any well services at the time the services are taking place. Well services are things like the installation of geothermal boreholes, construction of water supply wells, installation of well pumps, pressure tanks, and pressure switches, and other tasks that can expose the well or water system to sources of contamination, or cause operational problems with the well system.
Make sure you know if the well contractor you call is certified to perform well services in Iowa. Certified well contractors take special steps to ensure your well services are done properly. You should never hire a contractor who isn't certified to perform your well services because they are breaking the law.
You can look-up your contractor on the Iowa DNR Operator Certification database at the following web link: https://programs.iowadnr.gov/opcertweb/pages/oper_search.aspx