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~ rk:__t.-.d.. (~ ProoF;IVJ) Acoustical treatment can be achieved in many different ways, from requiring specific types of construction practices for new develq:Iment, to treatment of existing dwellings. This section will deal with the treatment of existing dwellings. Sound attenuation can best be achieved through adequate insulation and storm window treatment. Weather striWing, solid oore doors, and air conditioning also help minimize noise impacts to existing dwellings. In San Marcos, the widespread use of air conditioning and the subsequent c]os-n windows help reduce noise annoyance. This section is included as a land use control alternative only because it can permit continued use of land areas that may, at some point in time, be subjected to additional noise exposure. It should be emphasized that no existing structures, either on or off the aiJ:port, need acoustical treatment for current or anticipated airport activity . IDxm'agement of insulation/storm window treatment by private h0me- owners can be achieved through cost-sharing techniques, outright grants, and low interest loans. In addition to sound attenuation, these same techniques can add greatly to energy savings for the home- owners. Greater sound attenuation savings can be found in multiple family dwellings where there is usually minimal outdoor living space per family, and a much greater amamt of surface area for insulation. No matter what type of structure is being treated for sound attenuauat, it is much more c:aJt efficient to do durinq construction of the building rather than to try and treat an existing structure. b oost of treating existing structures may vary with many factors and can be very expensive. However, the cost of ProPer treatment of a new structure usually adds Ii ttle to the overall cost of the structure. As mentioned earlier, the proper place to achieve sound attenuation guidance for new construction is through the building code. In addition to funding for sound attenuation, a public awareness program of techniques available for sound attenuation may interest homeowners in impl:oving their structures. SUch an awareness program ca1ld be i.noJrporated into a distribution packet as a reaul t of this study. :;1~~ of PfI'Umt'!i"l ~CI'__ .L of Hew ~].".'-Il Within w ~ihle Anu 1hi.s can be aCOOlllplished through two major schemes - tax incentives and outright availability of funds for construction and/or mortgages. Tax incentives can be utilized as a means to keep open agricultural land in production. To prevent the farmer/rancher from having to 6.6