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6.3.4. Where the maximum depth of a well being destroyed is less than 100 feet, and there is no standing water, the well shall be sealed from the bottom to its total depth with grout, Bentonite, or a minimum of five (5) sack mix of concrete not greater than '/4" aggregate, or as specified by the Director. 6.3.5. Approved Bentonite may be allowed to freefall up to 200 feet in a well destruction if the space will allow no bridging, and if done in accordance with manufacturer's specification. 6.3.6. For the protection of the seal, and to facilitate the future use of the land site, a hole at least one foot larger in diameter than the originally drilled hole shall be excavated around the outside of the well casing to a depth not less than three feet below the ground surface. The well casing shall then be cut off six inches above the bottom of this excavation and removed. During the sealing operation, the grout used to fill the well shall be allowed to spill over into the excavation and fill it for a thickness of one foot and form a cap which has a diameter of at least on foot greater than the diameter of the originally drilled hole. This procedure should result in the exposed edge of the casing being covered with six inches of grout. After the sealing operation and the sealing material have set, the excavation shall be back filled with clean native soil. 6.3.7. Under no circumstances shall an abandoned well be used for disposal of any solid or liquid wastes. 6.3.8. If a test hole is drilled for construction of a well, and is not used in the final construction of the well, the test hole shall be destroyed from the total depth to the surface and under inspection. 7. INSPECTION OF WELLS 7.1. Approval of the application for permit will be withheld until an onsite inspection is made, if a necessary and the requirements regulating the well location are met. 7.2. Inspections will be made to ensure compliance with these Standards during and after well construction, destruction, deepening, reconditioning, subsurface boring, seismic test holes, monitoring wells, geophysical/geotechnical wells, cathodic protection wells, injection wells, recharge wells, extraction wells and other wells. 7.3. Final inspection of the well surface seal, sanitary seal, check valve, sample tap, and/or pump including the use of food grade lubricants, shall be made after pump is installed and operating. 7.4. The permit applicant shall provide a minimum of 24-hour advance request for all required inspections. 7.5. Other inspections will be made as deemed necessary by the Director. EHD 43-03 Page 17 of 27 WELL STANDARDS 10/9/07