2/28/1989 - Laserfiche WebLink

Home Browse Search

DESCRIPTION AND CONDITIONS DENNIS L. SMITH, INC., on behalf of JOHN R. AND BARBARA S. TRIPSON, has submitted a request to receive special exception approval for a sand mining operation ("Phase II") located in the RS -3, Residential Zoning District. Because a portion of the property is residentially zoned, special exception use approval is required. The proposed mine is located on the south side of 17th Street S.W., approximately 1400' west of 27th Avenue. The applicant received approval for Phase I of the mining opera- tion (located entirely with in the A-1 zoning district) at the December 15, 1988 Planning and Zoning Commission meeting. The applicant is now seeking approval for Phase II, the portion that includes RS -3 property that is covered by the special exception use. The Planning and Zoning Commission voted 4 to 1 to recommend approval and directed staff to try and get more definite informa- tion on noise levels for the Board of County Commissioners. Special exception uses are those types of uses that would not generally be appropriate throughout a particular zoning district. However, when special exception uses are carefully controlled as to number, area, location, and/or relationship to the vicinity, such uses would not adversely impact the public health, safety, comfort, good order, appearance, convenience, and general welfare and, as such, would be compatible with permitted uses within the particular zoning district. Special exceptions require submittal of an approvable site plan meeting all site plan criteria, zoning district criteria and the criteria set forth in the regulations for the specific land uses. The Board may attach any conditions and safeguards necessary to ensure compatibility of the use with the surrounding area. ANALYSIS: 1. Project Size: Phase I: 39.81 acres Phase I and Phase II: 47.46 acres 2. Area to be Excavated: Phase I: 12.6 acres Phase I and Phase II: 16.1 acres 3. Zoning Classification: Phase I: A-1 Phase I and Phase II: RS -3 & A-1 4. Land Use Designation: Phase I: LD -I Phase I and Phase II: LD -1 5. Estimated excavated Volume: Phase I: 610,919 cubic yards Phase I and Phase II: 822,431 cubic yards 6. Setbacks: Phase II: 150' from property lines 7. Depth of Mine: Phase II: 50' below natural grade (-29.0 N.G.V.D.) 8. Ground Water Table: In both phases the water table varies from one to four feet below natural grade. The agent has provided a sealed statement from a registered engineer stating this operation will have no adverse effect on ground water quality or quantity. 9. Method of Mining (Both Phases): The overburden will be removed down to the water table by conventional dry mining equipment, (i.e. backhoes, bulldozers, and trucks). 41 FEB 2 8 1989 BOOK 76 FACE 261