How should a driven-point well be abandoned?
If a driven-point well is contaminated, noncomplying, poses a hazard to health, has not been used for three or more years, or is in a pit or in a basement, the well must be abandoned by being properly filled and sealed. A license is not required for an individual nor a firm to do this work. Driven-point wells must be filled with cement grout which is a fluid mixture of Portland cement and water in the ratio of one 94-pound bag of cement to 6 gallons of water or with a clay-sand slurry having a weight of at least 11 pounds per gallon. The material may be poured into the top of the well pipe until the well is filled. Any settling within the pipe must be made up afterwards. Bentonite clay chips may not be used to abandon driven-point wells, because they can bridge too easily in the pipe. The drive pipe may be left in place, but it can be pulled prior to filling of the well if the well is 25 feet deep or less. A well abandonment form (form 3300-5B or 5W) must be completed and submitted to
