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5. OUT OF SERVICE WELLS 5.1. If the owner declares his intention to use the well again, and the well is capable of functioning as originally designed, he shall maintain it in such a way that: 5.1.1. The well has no defects that will impair the quality of water in the well or the water bearing formations. 5.1.2. The well is capped with a watertight seal or cover. 5.1.3. The well is marked so it may be easily seen. 5.1.4. The area around the well is kept clear of brush and debris. 5.2. After remaining out of service for five (5) years, the Director may call for the well to be properly abandoned. 6. DESTRUCTION OF WELLS 6.1. When a well no longer functions as originally designed, or cannot appropriately function in place of another design, or has fallen in to such a state of disuse or disrepair that it may become a source of impairment to the ground water quality, constitutes a safety hazard, or found to be abandoned, it must be destroyed under a well destruction permit. 6.2. All oil residue from oil lubed pumps shall be removed and disposed of properly. 6.3. SEALING REQUIREMENT: 6.3.1. When a well is to be destroyed, the interior of the casing shall first be cleared to eliminate any obstructions, which might interfere with effective sealing procedures. 6.3.2. The open well may then be filled with approved filler material from the bottom up to 100 feet below the ground surface; however a deeper seal may be required by the Director according to site specific requirements. The approved sealing material (see Section 4.7.3.) shall be installed from the filler material to the top of the casing. 6.3.3. If there is no annular seal or the integrity of the seal or the well is unknown, or the well is gravel packed, the casing shall be perforated upward beginning just above the filler material to the surface. Grout shall be applied above the approved filler material in such a manner that the grout will be forced out of the perforated holes, forming a barrier to the vertical movement of water. EHD 43-03 Page 16 of 27 WELL STANDARDS 10/9/07