According to recommendations by the United States Environmental Protection Agency, as well as the Department of Housing and Urban Development, a septic tank should be at least 50 feet away from a well that is used for drinking water.
How much distance should be between a septic tank and well?
- Common guidelines require at least 50′ clearance distance between a well and a septic system tank or 150′ between a well and a septic drainfield or leaching bed but you will see that different authorities may recommend different distances.
How far should a septic tank be from a well?
The distance between the septic tank and borewell is 15 ft and the dimension of the septic tank is 11X6X7 ft.
What is the minimum distance in meters of a well from a septic tank?
At least 15m from the nearest water supply. This is a minimum and should be more if the ground is rocky and fissures could take the outflow further. It should be at least 3m from the nearest building. Avoid areas where rainwater would stand or flow over the tank or vehicles could drive over it.
How far should a septic tank be from a water course?
The discharge (or outlet) from the tank must be at least 10 metres from any water courses or buildings.
Can septic leak into well?
Septic systems can impact local drinking water wells or surface water bodies. The extent of this impact depends on how well your septic system is maintained and if it is used properly. Household wastewater is treated by a septic system before it filters into the soil.
What is the minimum distance should be kept between well and toilet pit?
The pits can be located at a minimum distance of 10 m from the drinking water sources, such as tubewells and dugwells if the ES of the soil is 0·2 mm or less; and.
How far does a septic tank have to be from a well in Texas?
The required separation distance between a water well and septic systems is 50 feet from a septic tank and 100 feet from drain fields or spray areas with minimum well construction specifications met. The Texas Natural Resource Information Services (TNRIS) maintains grid maps.
How close can you build to a septic tank in Ontario?
Your well and all neighbors’ wells should be 100 feet or further from the septic system. There must also be enough land for a “repair area” that can be used if the system needs expansion or replacement in the future.
What should be the distance between septic tank and well in Kerala?
In chapter 16 of Kerala Building Rules, the minimum distance between a well and a septic tank is fixed as 7.5 m.
Does heavy rain affect septic tank?
It is common to have a septic back up after or even during a heavy rain. Significant rainfall can quickly flood the ground around the soil absorption area (drainfield) leaving it saturated, making it impossible for water to flow out of your septic system.
Are septic tanks still legal?
Septic Tanks Explained… Septic tanks cannot discharge to surface water drains, rivers, canals, ditches, streams or any other type of waterway. you are required to upgrade or replace your septic tank treatment system to a full sewage treatment plant by 2020, or when you sell a property, if it’s prior to this date.
What are the general binding rules for septic tanks?
The general binding rules stipulate that where properties with septic tanks that discharge directly to surface water are sold, responsibility for the replacement or upgrade of the existing treatment system should be addressed between the buyer and seller as a condition of sale.
How close to a river can a septic tank be?
Septic tank regulations Septic tanks are built underground and release wastewater slowly into the surrounding environment. For this reason, they must be a set distance away from a home. In addition, they must be built at least 50 metres away from water sources.
What to do after septic is pumped?
After you have had your septic tank pumped by a trusted septic company, there are some things you can and should do as the septic system owner.
- 1) Get on a Schedule.
- 2) Take Care of the System.
- 3) Know the Parts of Your System.
- 4) Check Other Possible Issues.
How deep should a well be for drinking water?
The quality of your water depends on several factors including geology and water levels. In order to allow for maximum ground filtration to remove impurities, your well depth should be at least 100 feet. As a general rule, the deeper you drill, it’s more likely that there will be minerals present.
How Much Distance Should Be Between My Septic Tank and My Well?
Septic systems are meant to dispose of the biological waste generated by a family’s daily activities and activities. Many factors influence the amount of garbage that must be disposed of. The number of people that live in the house, as well as their way of life, are examples of such factors. It has been discovered through many years of experience that the number of bedrooms in a house is an important guideline in deciding the size and capabilities of a sewer system. When it comes to households with several bedrooms, the number of individuals who generate garbage and the amount of rubbish that must be managed are often determined by the number of bedrooms.
Septic system failure may occur if the system’s ability to handle the higher demand cannot keep up with the rising demand.
Ultimately, the actual testing and number crunching will be handled by your design professional; nevertheless, we have included some common criteria created by the state of New York to assist you in discussing your alternatives with your contractor.
Recommended Distances Between WellsSeptic Components
As a result of local rules or soil conditions, local authorities may mandate greater distances between a well and a septic component than those suggested by the Environmental Protection Agency. When property limitations or elevation changes are involved, components can be brought closer together in other circumstances. The following are the regulations for distances between wells and septic components in the state of Maryland for wells that are intended for water distribution: d) 100 feet from identifiable sources of contamination and designated subsurface sewage disposal areas if the proposed well will utilize an unconfined aquifer as a water supply source; e) 50 feet from identifiable sources of contamination and designated subsurface sewage disposal areas if the proposed well will utilize a confined aquifer as a water supply source; and f) 50 feet from any sewage gravity or force main, except as provided in B(3) of this regulation.
The Maryland Department of the Environment’s Regulation of Water Supply, Sewage Disposal, and Solid Waste, Chapter 04: Well Construction, is the source for this information.
Possible Contaminants from Septic Systems
Because of local rules or soil conditions, it is common for municipal authorities to mandate greater distances between a well and a septic component than the EPA suggests. When property limits or elevation changes are involved, components can be brought closer together in other situations. The following are the criteria for distances between wells and septic components in the state of Maryland for wells that are intended for water delivery: ” (d) 100 feet from identifiable sources of contamination and designated subsurface sewage disposal areas if the proposed well will utilize an unconfined aquifer as a water supply source; (e) 50 feet from identifiable sources of contamination and designated subsurface sewage disposal areas if the proposed well will utilize a confined aquifer as a water supply source; and (f) 50 feet from any sewage gravity or force main, except as provided in B(3) of this regulation.” The Maryland Department of the Environment’s Regulation of Water Supply, Sewage Disposal, and Solid Waste, Chapter 04: Well Construction, is a good source of information.
Contamination of a well may occur if the distance between a septic system and a well is insufficient, or if there is a leak or a breakdown in a septic component, for example.
- Salmonella and E. coli are examples of bactria. Viruses, such as norovirus or hepatitis A
- Bacteria
- And parasites detergents and soaps that include phosphorus. Chemicals derived from paint, drain cleaners, and other common home items
- Heavy metals, iron, and copper are examples of such materials.
These pollutants, when present in large quantities, can cause illnesses or disorders. If you have reason to believe that your well has been polluted, it is critical that you have your water tested as quickly as possible. If a problem is discovered, water treatment techniques such as chlorination, reverse osmosis, activated charcoal filtration, or ultraviolet light purification may be able to restore your water to a safe drinking temperature. If this is not the case, it may be essential to make repairs to the well or septic system.
Call Water Doctor for Water Testing or Treatment in Maryland
If you are concerned about the quality of your drinking water, our staff at Water Doctor can assist you with this. We provide water quality testing for wells and municipal systems, as well as a number of treatment methods that can assist in the correction of the majority of water quality issues in the area. In collaboration with you, our specialists can evaluate the most appropriate solutions for your demands and budget, whether it is a single system, such as reverse osmosis, or a mix of various systems, such as water softeners, charcoal filtration, and ultraviolet purification.
Since 1979, we have been providing residential and business services to clients throughout Maryland.
Setback Distance From Septic to Drinking Water Well – Drinking Water and Human Health
To treat and dispose of wastewater, or sewage, many rural people install on-site wastewater treatment systems (also known as individual septic systems) on their property. Among the impurities found in residential wastewater include disease-causing bacteria, contagious viruses, common household chemicals, and excess nutrients. By designing, installing, and maintaining a septic treatment system appropriately, the danger of contaminating the drinking water supply with these toxins is reduced significantly.
- A septic tank and soil absorption system is a wastewater treatment technology that is allowed in a number of jurisdictions.
- Alternative technologies may also be permitted in some cases.
- When it comes to protecting a private drinking water supply from pollution, while minimal setbacks are important, higher separation lengths are frequently preferable in many cases.
- The minimum setback requirements in Nebraska will be utilized as an example.
- A residential lagoon must be at least 100 feet away from a private drinking water well in order to be allowed to operate.
- Always verify your local legislation to ensure that the minimum setback distances are met in your neighborhood.
Resources Septic (Onsite) Systems is a resource from the United States Environmental Protection Agency that provides tools and suggestions for effectively operating an on-site wastewater system.
How far away does a well need to be from a septic system in Florida?
The Florida Department of Health specifies a minimum distance of 75 feet between a private well for potable (drinking) water and a septic system in order to ensure proper sanitation. In the case of a public well, a greater distance is required, which varies depending on the number of gallons per day produced, whereas just 50 feet is required for a non-potable well (sprinkler system, for example). The following is how it is expressed in Chapter 64E-6.005 of the Florida Administrative Code: The location and installation of the equipment.
- It is prohibited to discharge sewage waste and effluent from on-site sewage treatment and disposal systems directly or indirectly onto the ground surface, or to discharge sewage waste and effluent into ditches, drainage structures, ground waters, surface waters, or aquifers.
- The location must be within two hundred feet of a public drinking water well, as defined in paragraph 64E-6.002(44)(b), Florida Administrative Code, if the well serves a facility with an anticipated sewage discharge of more than 2000 gallons per day.
- Other states may have different requirements for the distance between a septic system and a well.
- In most cases, once you have located the well, you will find that it is located to one side of the house and on the other side of the house.
- See the following blog pages for further information about SEPTIC TANK SYSTEMS: In Florida, what is the shortest distance between a septic tank and a house?
- What can I put in my septic tank to make it run more efficiently?
- What is the best way to determine if a residence is linked to a septic tank system or a sewer system?
- What is a grinder pump, and how does it work?
- In the event that my septic tank overflows into my home, should I call a plumber or a septic tank contractor?
- What happened to the septic tank?
- It is possible for a house to have more than one septic tank.
If the washing machine drain is diverted to a nearby piece of ground in the yard, is this permissible? Visit ourSEPTIC TANK SYSTEMSandWELLSpages for further blog entries on this topic, or go to theINDEXfor a comprehensive listing of all of our articles on the subject.
Well and Septic Distance Requirements for FHA Loans
The Florida Department of Health specifies a minimum distance of 75 feet between a private well for potable (drinking) water and a septic system in order to be considered safe for consumption. In the case of a public well, a longer distance is required, which varies depending on the number of gallons per day produced, whereas just 50 feet is required for a non-potable well (sprinkler system, for example). The following is how it is expressed in Chapter 64E-6.005 of Florida’s Administrative Code: Choosing a location and putting it up Everything must be situated and placed in such a way that, with regular maintenance, the systems perform properly, do not cause sanitary nuisances or health concerns, and do not compromise the safety of any residential water supply, groundwater, or surface water.
It is necessary to take the following steps to avoid such discharges and health risks: System and septage stabilization facilities that are constructed after the effective date of the rule must be located no closer than the minimum distances specified for the following: (1) If the public drinking water well is located within one hundred feet of a facility with an estimated sewage flow of 2000 gallons or less per day, the distance between the two points is reduced to seventy-five feet under Florida Administrative Code section 64E-6.002(44)(a) or one hundred feet under Florida Administrative Code section 64E-6.002(44)(c).
- A public drinking water well, as defined in paragraph 64E-6.002(44)(b), F.A.C., must be located within two hundred feet of any facility that has an estimated sewage discharge of more than 2000 gallons per day.
- Additionally, if you are looking for the septic system in a home that you are contemplating purchasing, having this essential distance might be beneficial to your search.
- Please see our blog article for further information on locating the septic tank and drainfield.
- See the following blog pages for further information about SEPTIC TANK SYSTEMS: When it comes to septic tanks and houses in Florida, what is the minimal distance?
- In order for my septic tank to function more efficiently, what should I add to it?
- Can you tell me how I can identify whether or not a residence is linked to a septic tank or a sewage system?
- Yes.
- The septic tank needs to be pumped out every so often.
- Does adding a second story to my house necessitate the purchase of a bigger septic system?
- Plan on inspecting it, or are you just passing through?
- When it comes to the plumbing regulations, what is the difference between gray water and black water.
Is it permissible to disconnect the washing machine drain from the septic tank and direct it to the ground in the front yard? Visit ourSEPTIC TANK SYSTEMSandWELLSpages for further blog entries on this topic, or go to theINDEXfor a comprehensive listing of all of our articles on the subject.
FHA Minimum Distance Between a Well and Septic Tank for Existing Construction
The Florida Department of Health specifies a minimum distance of 75 feet between a private well for potable (drinking) water and a septic system in order to be considered safe. A wider distance is required for a public well, which varies depending on the volume of water produced in gallons per day, but just 50 feet is required for a non-potable well (sprinkler system, for example). The Florida Administrative Code, Chapter 64E-6.005, states as follows: Choosing a location and installing it. All systems shall be situated and installed in such a way that, with regular maintenance, they perform in a hygienic manner, do not produce sanitary nuisances or health concerns, and do not compromise the safety of any residential water supply, groundwater, or surface water.
In order to avoid such discharges or health risks: (4) The following systems and septage stabilization facilities should not be located closer than the minimum distances stipulated for each of the following: (a) Seventy-five feet from a private potable well as defined in paragraph 64E-6.002(44)(a), F.A.C., or a multi-family waterwell as defined in paragraph 64E-6.002(44)(c), F.A.C.
- (d) Within fifty feet of a non-potable water well, as defined in paragraph 64E-6.002(39), Florida Administrative Code.
- Additionally, if you are looking for the septic system in a home that you are contemplating purchasing, having this essential distance might be beneficial.
- More information on locating the septic tank and drainfield may be found in our blog post.
- More information on SEPTIC TANK SYSTEMS may be found in the following blog posts: What is the shortest distance between a septic tank and a house in Florida?
- What can I put in my septic tank to make it more efficient?
- What is the best way to identify if a residence is linked to a septic tank system or a sewer system?
- What is a grinder pump and how does it work?
- When my septic tank backs up into my house, should I call a plumber or a septic tank contractor?
- Where has the septic tank been dumped?
- It is possible for a home to have more than one septic tank.
What is the difference? Can I redirect the washing machine drain away from the septic tank and into the yard? Visit ourSEPTIC TANK SYSTEMSandWELLSpages for other blog entries on this topic, or go to theINDEXfor a comprehensive listing of all of our articles.
FHA Distance Requirements Existing Homes
- The Florida Department of Health specifies a minimum distance of 75 feet between a private well for potable (drinking) water and the septic system. A higher distance is required for a public well, which varies depending on the number of gallons per day produced, while just 50 feet is required for a non-potable well (sprinkler system, for example). The Florida Administrative Code, Chapter 64E-6.005, states the following: The location and the installation. All systems must be situated and installed in such a way that, with regular maintenance, they perform in a hygienic manner, do not produce sanitary nuisances or health concerns, and do not compromise the safety of any residential water supply, groundwater, or surface water. Sewage waste and effluent from onsite sewage treatment and disposal systems should not be released onto the ground surface or directly or indirectly into ditches, drainage structures, ground waters, surface waters, or aquifers. To avoid such discharges or health risks, take the following steps: (1) Systems and septage stabilization facilities installed after the effective date of the regulation must be situated no closer than the minimum distances specified for the following: (a) Seventy-five feet from a private potable well as defined in paragraph 64E-6.002(44)(a), F.A.C., or from a multi-family waterwell as defined in paragraph 64E-6.002(44)(c), F.A.C. (b) One hundred feet from a public drinking water well as defined in paragraph 64E-6.002(44)(b), F.A.C., if the well serves a facility with an (c) Two hundred feet from a public drinking water well, as defined in paragraph 64E-6.002(44)(b), Florida Administrative Code, if the well serves a facility with an anticipated sewage discharge of more than 2000 gallons per day. (d) Within fifty feet of a non-potable water well as described in § 64E-6.002(39), F.A.C. The distance between a septic system and a well may range from one state to another. Additionally, if you are looking for the septic system in a property that you are contemplating purchasing, this essential distance might be beneficial. Once you’ve located the well, it’s probable that the septic system will be on the other side of the home. Visit our blog article for additional information on locating the septic tank and drainfield. What is the best way to find my septic tank? For additional information about SEPTIC TANK SYSTEMS, please visit the following blog posts: In Florida, what is the bare minimum distance between a septic tank and a house? What are the building code standards for gray water reuse in Florida? What can I put in my septic tank to make it run more efficiently? Why do septic tank professionals urge you to get rid of your garbage disposal? How can I identify if a residence is linked to a septic tank system or a sewer system? Is it necessary to get a septic tank re-certified if a house has been empty for a period of time? What exactly is a grinder pump? How often should I pump out the septic tank? When my septic tank backs up into my house, do I need to hire a plumber or a septic tank contractor? Is it necessary to upgrade my septic system when I build a house addition? Where is the septic tank located? Are you going to look at it? Can a house have more than one septic tank? What is the difference between gray water and black water in the plumbing code? Is it okay to disconnect the washing machine drain from the septic tank and direct it to the ground in the backyard? Visit ourSEPTIC TANK SYSTEMSandWELLSpages for further blog entries on this topic, or go to theINDEXfor a comprehensive listing of all of our articles.
Despite this, there are occasional deviations in particular situations. The length of the septic tank drain field may be lowered to 75 feet if the local government approves it. Additionally, if the property line is adjacent to a residential property, the well distance regulations of the local government should be followed. However, if the land is adjacent to non-residential property or a public road, there must be a minimum of a 10-foot separation between the two properties. In circumstances where the local government grants permission for greater distances, this will take precedence over the restrictions outlined above.
In the case of a well or septic tank, it is strongly advised that you arrange a well water test and septic tank inspection prior to purchasing the house.
FHA Minimum Distance Between a Well and Septic Tank for New Construction
Certain exceptions do exist, though, and they are as follows: A septic tank drain field can be shortened to 75 feet in length if the local government approves the change. If the property line is adjacent to a residential property, the well distance restrictions set out by the local authorities should be followed. However, if the land is next to non-residential property or a public road, there must be a minimum of a 10-foot separation between the property line and the road or highway. The local government will have precedence over the foregoing conditions in circumstances when it permits greater distances.
It may be necessary in some instances.
- Ten feet from the property border
- Fifty feet from the septic tank
- Hundred feet from the absorption field
- And hundred feet from the seepage pit or cesspool Sewer lines with permanent water tight joints are 10 feet in length
- Other sewer lines are 50 feet in length
- And chemically poisoned soil is 25 feet in length. When impermeable layers of clay, hardpan, or rock protect the ground surface, the depth can be decreased to 15 feet. 50-foot-deep dry well
- Other regulations – always consult with the appropriate local authorities
Similarly to the current dwelling criteria, any local government regulations take precedence over the foregoing and may be followed. Another piece of advice for first-time home buyers is to make time to attend the septic system inspection. Not only may possible concerns be highlighted in depth to the borrower, but it also serves as an excellent educational opportunity. Learning how to maintain and service a septic system is an important part of a good education. HUD.gov is the official website of the Federal Housing Administration.
USDA and FHA distance requirements for well and septic
When working in rural communities, it is customary to have a property that is serviced by a private well. However, there are several crucial measures that must be taken into consideration while defining the minimum property specifications. This video guide will lead you through the USDA and FHA distance requirements for wells and septic systems, as well as what to watch out for during your next real estate transaction. If you have not already done so, please feel free to obtain our most recent “USDA Blueprint for Success” by clicking on the link provided below.
- As a brief refresher, USDA loans follow the FHA HUD Handbook criteria for minimum property requirements, therefore the distances and measurements in today’s video will be relevant to both FHA and USDA house loans.
- The following minimum distance restrictions between wells and sources of pollution are mandated by the HUD Handbook for existing construction: 1 tenth of a mile from the property line 2.
- In the event that the relevant Property line is near to a residential property, the local well distance regulations will apply.
- If the distance requirements of the local authority are greater than those specified in the HUD Handbook, the local authority’s requirements will take precedence.
- While houses with wells may need additional precautions, I always advise not to be afraid–instead, be informed, since information is power.
- As an Approved USDA Lender, we have the knowledge and skills to assist you in achieving your dream of becoming a homeowner.
Simply contact us by phone or email to discuss your situation and allow us to demonstrate the “Metroplex”difference! Sean [email protected] (800) 806-9836 Ext. [email protected] The following is the link to our “USDA Blueprint for Success” document:
How Far Should You Put the Septic Tank From the House?
Property that is serviced by a private well might be commonplace while working in rural settings. When defining minimum property standards, there are several crucial metrics that must be taken into consideration. This video guide will lead you through the USDA and FHA distance requirements for wells and septic systems, as well as what to watch out for during your next real estate purchase. If you have not already done so, please feel free to obtain our most recent “USDA Blueprint for Success” by clicking on the link provided below: A terrific educational resource for both homebuyers and their Realtors, this free handbook is meant to assist you in walking through the USDA process step-by-step.
- USDA and FHA regulations for well and septic system distances are outlined below.
- We will also be focusing on existing properties with private wells rather than new construction homes or properties connected to a public water supply for today’s presentation.
- 2.
- Local authorities may accept a reduction in this distance to 75 feet if the septic tank drain field is 100 feet away.
- Nevertheless, if the subject Land is close to non-residential property or a public road, there must be a minimum separation distance of 10 feet between the subject Property and the road.
- Due to the fact that these distances are not generally estimated until after the sales contract has been received and the loan application has been submitted, please notify us as soon as possible if you have any issues so that we can investigate and provide recommendations.
- Our knowledge and skills as an Approved USDA Lender enable us to assist people in achieving their dream of becoming homeowners.
Simply contact us by phone or email to discuss your situation and allow us to demonstrate the “Metroplex”difference. Sean [email protected] (800) 806-9836, extension 280 To access our “USDA Blueprint for Success,” please click on the following link.
In This Article
- Amount of distance from the home
- Basic safety concerns
- Suggestions for a successful installation
For those who don’t have access to a municipal sewage system, an alternate solution, such as a septic tank and field lines, will be required. The design and operation of these systems are fairly straightforward. When designing a septic system, you must keep in mind the requirements of local construction codes as well as public health concerns.
Tip
Depending on where you live, local ordinances and regulations that specify the distance between the septic tank and the home vary. However, the normal minimum distance is 10 feet between the two structures. Consult your local ordinances and regulations for a detailed answer as to how far your septic tank must be installed from your home. Requirements differ from one location to the next, although the standard minimum distance from the home is 10 feet in most cases. In the case of a private well for drinking water, however, keep in mind that many state departments of health demand a minimum distance of 50 feet between a new septic tank and a well.
It is possible that the septic tank will be placed considerably closer to the structure since it will be easier and require less plumbing in some cases.
Basic Safety Considerations
If you’re the type of person who prefers to do things on their own, there are certain important measures you should take before starting this endeavor. Before you start digging the hole for the tank, call your local utility providers to find out where the service lines are located. A gas line, water line, phone line, or electrical connection that has been severed is not only potentially dangerous, but it may also be extremely expensive to repair. Once you have finished excavating the hole, proceed with caution.
It’s also important to understand that a concrete septic tank can weigh up to 5 tons.
Make sure the hole is available when the tank is delivered so that it can be installed straight in the desired location.
Tips for a Successful Installation
Plan ahead of time to get your water supply switched on prior to installing your septic tank. You must fill the tank with water as soon as it is placed in its final position for this to be possible. This has absolutely nothing to do with the septic system itself, but it is a prudent precaution. In the event of a heavy downpour, the groundwater may swell and a septic tank may float out of the ground, even if it has been buried. If this occurs, contact a qualified professional immediately. Repairing any damage done to the lines or to the tank itself, as well as putting the tank back in its original location, may be a costly and time-consuming endeavor.
Initially, you may be confident that you will remember the exact location of the marker when it is time to top up the tank — which is generally every three to five years — but your memory may fade over time.
In the absence of a marker, you may end up digging holes in the wrong place when it is time to service the tank.
Knowledge Details · U.S. Dept of Housing and Urban Development
The following table shows the bare minimum distance that must be maintained between wells and pollution sources: CONSTRUCTION THAT IS CURRENTLY UNDERWAY
- Property line – 10 feet
- Septic tank – 50 feet
- Drain field – 100 feet
- Septic tank drain field can be decreased to 75 feet if permitted by municipal authorities. a. It is necessary to comply with local well distance standards if the relevant Property line is next to residential property. If the subject Land is next to non-residential property or a public road, there must be a minimum separation distance of 10 feet between the subject Property and the road.
NOTE: If the distance between the two points is higher than that specified above, the distance requirements of the local authority take precedence. THERE IS A NEW CONSTRUCTION
- Ten feet from the property line
- Fifty feet from the septic tank
- Hundred feet from the absorption field
- Hundred feet from the seepage pit or cesspool
- Ten feet from the property line Watertight junctions on sewer lines are required to be permanently installed every 10 feet
- All other sewer lines are required to be 50 feet. Chemically poisoned soil – 25 feet (reduced to 15 feet where the ground surface is protected by impervious strata or clay, hardpan, or rock)
- Chemically poisoned soil – 25 feet (reduced to 15 feet where the ground surface is protected by impervious strata or clay, hardpan, or rock)
- Chemically poisoned soil 50-foot-deep dry well
- Other – refer to the minimums set by the local health authority
NOTE: If the distance between the two points is higher than that specified above, the distance requirements of the local authority take precedence. See Handbook 4000.1 II.A.3.aii(O)(2) and II.A.8.ivii(A)(6) at the end of this chapter for further information.
Isolation Distances From a Water-Supply Well – EH: Minnesota Department of Health
Minnesota Rules, Chapter 4725Rules Relating to Wells and BoringsEffective date: August 4, 2008The isolation distances below are fromMinnesota Rules, chapter 4725. Distances must bemeasured horizontally from the water-supply well.Minnesota Statutes, section103I.205, subdivision 6, prohibits constructing, placing, or installing anactual or potential contaminant sourcefrom a well that is lessthan the minimum distance prescribed by rule. The minimum isolation distance must be maintained between a new well and a contamination source, even if the contamination source is no longer in use. An isolation distance is not required if the contamination source and any related contaminated soil have been removed.Additional information andexplanations can be found in theRules Handbook, A Guide to theRules Relating to Wells and Borings, or bycontacting the Well ManagementSection.If you have questions about isolation distances not listed here, please contact the Minnesota Department of HealthWell Management Section.Questions? Contact theMDH Well Management Section 651-201-4600 [email protected] Department of Health
| Absorption area of a soil dispersal system | ||||
| average flow greater than 10,000 gallons/day | 300 | feet 1 | ||
| serving a facility handling infectious or pathological wastes | 150 | feet 1 | ||
| average flow 10,000 gallons/day or less | 50 | feet 1 | ||
| Agricultural chemical | ||||
| tank or container with 25 gallons or more or 100 pounds or more dry weight, or equipment filling or cleaning area without safeguards | 150 | feet | ||
| storage or equipment filling or cleaning area with safeguards | 100 | feet | ||
| storage or equipment filling or cleaning area with safeguards and roofed | 50 | feet | ||
| buried piping | 50 | feet | ||
| multiple tanks or containers for residential retail sale or use, no single tank or container exceeding, butaggregate volume exceeding 56 gallons or 100 pounds dry weight | 50 | feet | ||
| Anhydrous ammonia tank | 50 | feet | ||
| Animal | ||||
| feedlot, unroofed, 300 or more animal units | 100 | feet 1 | ||
| feedlot, more than 1.0, but less than 300 animal units | 50 | feet 1 | ||
| building or poultry building, including a horse riding area, more than 1.0 animal unit | 50 | feet 1 | ||
| rendering plant | 50 | feet | ||
| feeding or watering area within a pasture, more than 1.0 animal unit | 50 | feet 1 | ||
| area to bury more than one animal unit | 50 | feet | ||
| building, feedlot, confinement area, or kennel, 0.1 to 1.0 animal unit | 20 | feet 1,2 | ||
| Building, building projection, deck, overhang, permanent structure | 3 | feet 3 | ||
| Cesspool | 75 | feet 1 | ||
| Cistern or reservoir, buried, nonpressurized water supply | 20 | feet | ||
| Commercial compost site | 50 | feet | ||
| Construction or demolition debris disposal area | 50 | feet 1 | ||
| Cooling water pond, industrial | 50 | feet 1 | ||
| Deicing chemicals, bulk road | 50 | feet 1 | ||
| Drainfield (see Absorption area) | ||||
| Dry well (sewage) | 75 | feet 1 | ||
| Electric transmission line | 10 | feet 4 | ||
| Electrical transformer storage area, oil-filled | 50 | feet | ||
| Elevator boring, not conforming to rule | 50 | feet | ||
| conforming to rule | 20 | feet | ||
| Fertilizer chemigation tank, safeguarded, from irrigation well only | 20 | feet 5 | ||
| Floor drain, grate, or trough | ||||
| connected to a buried sewer | 50 | feet | ||
| if buried sewer is air-tested, approved materials, serving one building, or two or less single-familyresidences | 20 | feet 2 | ||
| Frost-proof yard hydrant or discharge of a frost-proof hydrant draining into the soil, | ||||
| fire hydrant or flushing hydrant | 10 | feet | ||
| Gas (flammable or volatile) pipe | 10 | feet 4 | ||
| Grave or mausoleum | 50 | feet | ||
| Gravel pocket or French drain for clear water drainage | 20 | feet | ||
| Gray-water dispersal area | 50 | feet 1 | ||
| Hazardous substance | ||||
| tank or container, above ground or underground, 56 gallons or more, or 100 pounds or more dry weight, without safeguards | 150 | feet | ||
| tank or container, above ground or underground, 56 gallons or more, or 100 pounds or more dry weight with safeguards | 100 | feet | ||
| buried piping | 50 | feet | ||
| multiple storage tanks or containers for residential retail sale or use, no single tank or container exceeding 56 gallons or 100 pounds, but aggregate volume exceeding | 50 | feet | ||
| Horizontal ground source closed loop heat exchanger buried piping | 50 | feet | ||
| Horizontal ground source closed loop heat exchanger buried piping and horizontal piping, approved materialsand heat transfer fluid | 10 | feet 2 | ||
| Household solid waste disposal area, single residence | 50 | feet 1 | ||
| Interceptor, including a flammable waste or sediment | 50 | feet | ||
| Land spreading area for sewage, septage, or sludge | 50 | feet 1 | ||
| Landfill or dump, mixed municipal solid waste from multiple persons | 300 | feet 1 | ||
| Landfill, permitted demolition debris | 300 | feet 1 | ||
| Leaching pit | 75 | feet 1 | ||
| Liquid propane (LP) tank | 10 | feet 4 | ||
| Manure (liquid) storage basin or lagoon | ||||
| unpermitted or noncertified | 300 | feet 1 | ||
| approved earthen liner | 150 | feet 1 | ||
| approved concrete or composite liner | 100 | feet 1 | ||
| Manure (solid) storage area, not covered with a roof | 100 | feet 1 | ||
| Ordinary high water level of a stream, river, pond, storm water retention pond, lake, or reservoir | 35 | feet 2 | ||
| Petroleum | ||||
| tank or container, 1,100 gallons or more, without safeguards | 150 | feet | ||
| tank or container, 1,100 gallons or more, with safeguards | 100 | feet | ||
| tank or container, buried, between 56 and 1,100 gallons | 50 | feet | ||
| tank or container, not buried, between 56 and 1,100 gallons | 20 | feet 6 | ||
| buried piping | 50 | feet | ||
| Petroleum or crude oil pipeline to a refinery or distribution center | 100 | feet | ||
| Pit or unfilled space more than four feet in depth | 20 | feet | ||
| Pollutant or contaminant that may drain into the soil | 50 | feet 1 | ||
| Privy, nonportable | 50 | feet 1 | ||
| portable (privy) or toilet | 20 | feet 2 | ||
| Sand filter, watertight; peat filter; or constructed wetland | 50 | feet | ||
| Scrap yard | 50 | feet | ||
| Seepage pit | 75 | feet 1 | ||
| Septic tank | 50 | feet | ||
| Sewage holding tank, watertight | 50 | feet | ||
| Sewage sump | ||||
| capacity 100 gallons or more | 50 | feet | ||
| capacity less than 100 gallons, tested, conforming to rule | 20 | feet 2 | ||
| Sewage treatment device, watertight | 50 | feet | ||
| Sewer, buried | ||||
| collector, municipal, serving a facility handling infectious or pathological wastes, open-jointed or unapproved materials | 50 | feet | ||
| approved materials, tested, serving one building, or two or less single-family residences | 20 | feet 2 | ||
| Solid waste transfer station | 50 | feet | ||
| Storm water drain pipe, 8 inches or greater in diameter | 20 | feet 2 | ||
| Swimming pool, in-ground | 20 | feet | ||
| Unused, unsealed well or boring | 50 | feet | ||
| Vertical heat exchanger (vertical) piping, conforming to rule | 35 | feet 2 | ||
| horizontal piping conforming to rule | 10 | feet 2 | ||
| Wastewater rapid infiltration basin, municipal or industrial | 300 | feet 1 | ||
| Wastewater spray irrigation area, municipal or industrial | 150 | feet 1 | ||
| Wastewater stabilization pond | ||||
| municipal, 500 or more gallons/acre/day of leakage | 300 | feet 1 | ||
| municipal, less than 500 gallons/acre/day of leakage | 150 | feet 1 | ||
| industrial | 150 | feet 1 | ||
| Wastewater treatment unit tanks, vessels and components (Package plant) | 100 | feet | ||
| Water treatment backwash disposal area | 50 | feet 1 | ||
| Water treatment backwash holding basin, reclaim basin, or surge tank | ||||
| with a direct sewer connection | 50 | feet | ||
| with a backflow protected sewer connection | 20 | feet | ||
| Additional Isolation Distances For Community Public Water-Supply Wells | ||||
| Highest water or flood level | 50 | feet | ||
| Property line, unless legally controlled through an easement | 50 | feet | ||
| 1 | A sensitive water-supply well must be located at least twice theindicated distance.Asensitive water-supply well is a well with less than 50 feet of watertightcasing, and which is not cased below a confining layer or confining materials ofat least 10 feet in thickness. | |||
| 2 | A community public water-supply well must be a minimum of 50 feetfrom this contamination source. | |||
| 3 | Awell or boring may not be constructed inside a building except as provided forby Minnesota Rules, part 4725.2175. | |||
| 4 | A well or boring may be located between 5 and 10 feet of anelectric transmission line, gas pipe or LP tank if the well or boring isplacarded, and work is not performed on the well or boring unless the electricline is deenergized and grounded or shielded, and the LP tank does not containflammable gas. | |||
| 5 | The 20-foot distance applies only to an irrigation well and afertilizer chemigation supply tank meeting the requirements of Minnesota Rules,chapter 1505. | |||
| 6 | A community public water-supply well must be a minimum of 50 feet from a petroleum tank or container with a capacity between 56 and 1,100 gallons, unless the tank or container is used to fuel emergency pumping equipment and is located in a room or building separate from the community well; and is of double-wall construction with leak detection between walls; or is protected with secondary containment. |
Septic Systems and Drinking Water
| 1. Bathrooms and Kitchens | Water from toilets, sinks, showers, and other appliances is called wastewater and can be harmful to human health. Wastewater contains harmful bacteria, viruses, and nutrients that could make you sick if it comes in contact with your drinking water well. Make sure the wastewater is properly treated by your septic system and that your drinking water well is located at the appropriate distance (set back) from your and your neighbor’s system. Avoid flushing other chemicals or medications down the drain or toilet since they could also contaminate your drinking water well. | |
| 2. Septic Tank | Wastewater generated in your home exits through a drainage pipe and into a septic tank. The septic tank is a buried, water-tight container that holds wastewater for separation and treatment. The solids settle to the bottom (sludge) and fats, oil and grease float to the top (scum). Microorganisms act to break down the sludge and destroy some of the contaminants in the wastewater. Your septic tank should be serviced and pumped on a regular basis to make sure it’s working properly. | Learn more about how your septic system works. |
| 3. Drainfield | The drainfield is a shallow, covered trench made in the soil in your yard. Partially treated wastewater from the septic tank flows out through the drainfield, filters down through the soil and enters the groundwater. If the drainfield is overloaded with too much liquid or clogged with solids, it will flood and cause sewage to surface in your yard or back up into your home. | |
| 4. Wastewater Treatment in Soil | Filtering wastewater through the soil removes most bacteria and viruses (also known as pathogens) and some nutrients. While soil can treat many contaminants, it cannot remove all of them (e.g., medicines, some cleaning products, other potentially harmful chemicals). If untreated wastewater surfaces in the yard, wastewater may contaminate your drinking water through an unsecured well cap or cracks in the well casing. It’s important to avoid flushing medication and chemicals into your wastewater since it could contaminate your drinking water. | |
| 5. Water Table | The water table is found where you first hit water if you dig a hole into the ground. | |
| 6. Groundwater | The water below the water table is called groundwater. Groundwater flowing underneath a drainfield captures any remaining contaminants released from the septic system. A drinking water well is at greater risk of becoming contaminated if it is in the path of groundwater flow beneath a septic system. | |
| 7. Drinking Water Well | A drinking water well is drilled or dug into the groundwater so water can be pumped to the surface. Deep wells located farther away from a septic system and not in the path of the groundwater flow from the septic system are least likely to be contaminated. Drinking water wells should be regularly tested to ensure your home’s water is safe to drink. | Learn about private water wells. |
| 8. Setback Distance | Most states or local governments require a specific horizontal distance (or setback) between a septic system and a drinking water well. If the soil where you live is sandy, or porous, you may want to place your well farther away than the minimum required distance. Contamination is less likely the farther apart a well is from a septic system. | Consult your local health department about required setback distances in your area. |
| 9. Could my well be affected? | Your septic system could contaminate your drinking water well or a nearby well under certain conditions. Remember to test the drinking water from your well regularly and take corrective action as needed.The contamination risk to your well is LOWER: |
- NOTE: If the distance between the two points is more than that specified above, the local authority’s rules take precedence. See Handbook 4000.1 II.A.3.aii(O)(2) and II.A.8.ivii(A)(6) at the end of this chapter for further information.
NOTE: If the distance required by the local authority is more than the distance mentioned above, the local authority’s requirements take precedence. See Handbook 4000.1 II.A.3.aii(O)(2) and II.A.8.ivii(A)(6) at the end of this document for further information.
- The well is at a shallow depth and in permeable soil
- It is downgradient of the septic system (i.e., groundwater flows from the septic system towards the well)
- There are many homes on septic systems near the well
- Or the well and/or septic system have been poorly constructed or maintained (i.e., contaminants can enter a cracked drinking well casing from groundwater or surface water).
| Learn other ways to keep your private well safe from possible sources of contamination. |
How Your Septic System Can Impact Nearby Water Sources
Septic systems have the potential to have an influence on nearby drinking water wells or surface water bodies. The amount to which this has an influence is determined by how well your septic system is maintained and how well it is used. To learn more about how septic systems interact with drinking water wells or surface water bodies, as well as how to keep them healthy, see the websites below. Septic Systems and the Purification of Drinking Water Septic systems clean wastewater for a large number of homeowners, many of whom also obtain their drinking water from wells on their properties.
- Learn where your septic system is, how to run it, and how to keep it in good working order to protect adjacent wells.
- A septic system is used to cleanse household wastewater before it is allowed to flow into the soil.
- Learn how nutrients and pathogens from your septic system may affect streams, lakes, and other waterbodies in the vicinity of your house.
- Some are straightforward, whilst others might be more difficult and expensive to implement.
Re: Distance between Septic Tanks and Water Wells
Water quality in drinking water wells and surface water bodies can be affected by septic systems. If your septic system is correctly maintained and utilised, the amount to which it has an influence will be determined. To understand more about how septic systems interact with drinking water wells or surface water bodies, as well as how to keep them healthy, please visit the resources below: Systems for Sewage Treatment and Drinking Water The wastewater treatment provided by septic systems is essential for many households who also rely on private wells for their drinking water.
You’ll learn where your septic system is, how to run it, and how to maintain it so that surrounding wells are protected.
A septic system is used to cleanse household wastewater before it is allowed to seep into the ground and become contaminated.
Learn how nutrients and pathogens from your septic system may affect streams, lakes, and other waterbodies in the vicinity of your property.
In order to avoid the septic system in your home from affecting adjacent water sources, you may take a number of precautions as a homeowner.
Certain tasks are straightforward, whilst others might be more complex and expensive. Before making any big changes to your septic system, speak with an expert in your region.
Septic System Minimum Setback Requirements
| From ephemeral (seasonal) stream/swale | 50 feet |
| From flowing stream | 100 feet |
| From well, spring, lake, or pond | 100 feet |
| From lake or reservoir used for drinking water | 200 feet |
| From trees | 5 feet |
| From lot lines, roads, driveways, or buildings | 8 feet |
| From a cut or fill (downgradient) | Four (4) times the cut or fill height |
| From a swimming pool | 10 feet |
| Shall not be placed under asphalt, concrete, or under areas subject to vehicular traffic | |
| Shall not be placed in fill material |
Septic Tank
| From house | 5 feet |
| From any building | 5 feet |
| From trees | 5 feet |
| From lot lines, roads, or driveways | 5 feet |
| From streams, springs, lakes, or reservoirs | 50 feet |
| From well or spring used for domestic purposes | 100 feet |
| From a swimming pool | 5 feet |
| Shall not be installed in areas subject to high groundwater tables |
Wells
| Minimum horizontal separation distance between well and: | |
| Any sewer line (sanitary, industrial, or storm; main or lateral) | 50 feet |
| Watertight septic tank or subsurface sewage leaching field | 100 feet |
| Cesspool or seepage pit | 150 feet |
| Animal or fowl enclosure | 100 feet |
| The above horizontal separation distances are generally considered adequate. Wells should be located outside areas of flooding. The top of the well casing shall terminate above grade and above known levels of flooding caused by drainage or runoff from surrounding land. Area drainage should be directed away from the well, and if necessary, the area around the well shall be built up so that the drainage moves away from the well. |
