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Abandoned Water Wells
Abandoned Water Wells
Authority to conduct regulatory activities is established in the Public Health Code in Part 127, 1978 P.A. 368, as amended. EGLE conducts compliance and enforcement actions in cooperation with the State Office of the Attorney General (OAG) and through Local Health Departments (LHD). LHDs enforce abandoned well plugging requirements through field inspections and review of plugging records submitted by registered well drilling contractors and property owners.
What is an abandoned well?
The Groundwater Quality Control Act, Part 127, 1978 PA 368 defines an abandoned water well as a well which:
- has its use permanently discontinued.
- is in such disrepair that its continued use for obtaining groundwater is impractical.
- has been left uncompleted.
- is a threat to groundwater resources.
- is or may be a health or safety hazard.
Abandoned wells can be found almost anywhere: on farms, industrial sites, and in urban areas. Those marked by windmill towers and old hand pumps are easy to spot. However, many of them are hidden beneath weeds and brush or are buried below grade.
The following are examples of abandoned wells that must be plugged:
- Wells that are not operational.
- Wells that are disconnected and taken out of service at the time connection is made to a municipal water system.
- Any inoperable or abandoned well which is not properly sealed which can be a safety or environmental hazard.
Abandoned wells in Michigan
The construction of water wells in Michigan using drilling machines probably dates back to the early to mid-1800's. By the turn of the century, drilled wells of 1½ inch to 4 inch diameter steel casing were common throughout the state. Many early water wells were hand dug and lined with stone, brick, wood, or concrete. Historically, when household wells were taken out of service, they were abandoned without plugging. When a replacement well was needed, the water service line from the old well was often just severed. Sometimes the end of the water pipe was capped. On early wells, with windmills or hand pumps, the pump was often disconnected leaving the pump rods and plunger in the well. Some abandoned wells were filled with fieldstones and some drilled wells were merely capped by jamming something into the top. Occasionally, a municipal well was abandoned by shearing off the pump column, allowing it to drop to the well bottom. The pump motor was salvaged and a cover was placed over the well.
Well owners traditionally did not wish to spend money plugging a well, nor did they recognize the potential threat to their new water well. Some older wells were buried 4 to 5 feet to protect against freezing. Once they are abandoned, well locations can be easily forgotten. Vegetation grows around above grade casings obscuring their location. Buried wells are not visible at all. When property with an abandoned well is sold, existence of the well is often unknown to the new landowner. Many reports of well casings being bulldozed during demolition or paved-over during road building projects have been received by state and county officials.
No one knows exactly how many unplugged abandoned wells exist in Michigan. The National Ground Water Association reports that Michigan leads the nation in the number of new wells drilled annually. It is quite likely that Michigan has more abandoned wells than any other state.
Estimates conducted by other states have shown from one to four abandoned wells for every five wells in service. Another projection is that one abandoned well exists for each generation a homesite has been occupied. The highest concentration of abandoned wells is expected to be in urban and suburban settings where municipal water has been extended into areas of dense housing concentration that were once served by on-site wells.
Abandoned unplugged wells
Unplugged abandoned wells can threaten the quality of drinking water from both private wells and those serving public water supply systems. It is estimated that over 2 million unplugged wells exist in Michigan. The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has implemented a comprehensive program to coordinate statewide abandoned water well plugging activities. Plugging abandoned water wells protects aquifers that supply drinking water to nearly one-half of Michigan's citizens. Proper well closure eliminates the risk of injury.
How to locate an abandoned well
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Talk to individuals
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Physical evidence
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Records search
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Equipment and tools
- Property owner
- Previous owner(s)
- Relatives or acquaintances who may know about the property
- Neighbors (neighboring wells may give a clue as to well location, depth, etc.)
- Contractors (well drillers, plumbers, builders) who have worked on the property
- Inspectors (well, plumbing, building, septic system)
- Current or former employees, maintenance personnel
- Windmills or wishing wells
- Casing visible above ground, concrete slab or basement floor
- Small outbuildings (may be well house)
- Circular ring in cement or patch in the floor
- Basement offset (small room off of basement)
- Patch in step or concrete (access for well below)
- Pit in yard or basement
- Manhole cover
- Crock, brick or stone structures
- Hand pump, hydrant, or faucet in yard
- Waterline or patched hole through basement floor or wall
- Water system components (pressure tank, pump, control box)
- Damp circular depression in yard
- Additions, false walls, access panels which may "hide" well
- Old building sites recognizable by an old foundation
- Ornamental shrubs, flowers, or trees outlining old, home or farm sites
- Water Well Record or Water Well Plugging Record at local health department or EGLE
- Water well or sewage disposal permits at local health department
- City, township or county officials - zoning or building permits
- Municipal water department - records on water line extensions to homes previously served by water wells
- Old photographs of the property
- Aerial photographs of the property (showing windmills, well houses)
- County plat book, soils map, or topo map showing locations of buildings, roads
- Owner's records (bills, deed easements) or information written on pressure tank, control box, etc.
- Metal detector
- Tape measure or "snake" to follow pipes
- Digging equipment including shovels, hammers, chisels, backhoe
- Magnetometer or electro-magnetic anomaly detectors (these are available through groundwater consultants)
Abandoned well frequently asked questions
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I am connected to municipal water. How do I know if I have an old well on my property?
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Who can I contact for further information and/or assistance?
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What do I do if I can't find my abandoned well because it is buried?
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Do I have to plug my old well when a replacement well is installed?
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Who is responsible to plug an abandoned well?
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What types of plugging materials are used?
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Who can plug a well?
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Why is it important to get the "stuff" out of the well before plugging?