System Placement: Elevated Sand Mound

System Placement: Elevated Sand Mound. All components of the elevated sand mound system shall comply with the following placement requirements. 1. All components of the elevated sand mound system shall be located a minimum of: a. Five feet from any dwelling. b. Ten feet from any property line. 2. The aerobic treatment plant, septic tank, and pump chamber shall be located a minimum of 50 feet from any public, private or individual potable water source. 3. The elevated sand mound shall be located at a lower elevation and a minimum of 100 feet from any public, private, or individual potable water source. 4. Potable water lines shall not pass under or through any part of the elevated sand mound system. Where a water supply line must cross a sewer line, the bottom of the water service within ten feet of the point of crossing shall be at least 12 inches above the top of the sewer line. The sewer line shall be of Schedule 40 pipe with cemented joints at least ten feet on either side of the crossing. Water and sewer lines shall not be laid in the same trench. The water and sewer lines shall maintain a minimum separation distance of ten feet. 5. The area for the mound or the replacement area shall not be used for vehicular traffic or vehicular parking. 6. Aerobic treatment plants, septic tanks, pumping chambers or disposal systems shall not be placed under a dwelling or other permanent structure. 7. Elevated sand mounds shall not be located in depressed areas where surface water will accumulate. Provisions shall be made to minimize the flow of surface water over the disposal system area. 8. Elevated sand mounds located on slopes of less than eight percent shall have a minimum setback from recreational waters, shellfish waters or other sensitive areas as prescribed in Table 13. 9. Elevated sand mounds located on slopes of greater than eight percent shall be located a minimum of 100 feet from recreational waters, shellfish waters and other sensitive areas. 10. Where all or part of the elevated sand mound is proposed to be installed on property other than the owner’s, an easement in perpetuity shall be legally recorded in the proper county. The easement shall be of sufficient area to permit access, construction and maintenance of the elevated sand mound. 11. No site for an elevated sand mound or replacement area shall be located wholly within an area which is frequently flooded, swamp, marsh, or wetland. Except that if permits have been issued by the proper regulatory agency authorizing the use of wetlands for building sites and the installation of an individual onsite wastewater disposal system, the property shall be evaluated using standard soil and site criteria for IOWDS. 12. When a proposed lot is located partially within a frequently flooded area, that portion of said lot not within the flood prone area may be considered for approval for the elevated sand mound. 13. A minimum of six (6) inches of naturally occurring soil must be present above a restrictive horizon or a predominantly gray soil before placement of any fill. 14. Easements or right-of-way areas for utilities, surface or subsurface drainage, roads, streets, ponds or lakes shall not be used as available space for an elevated sand mound.