The regulations of this chapter shall not be construed to limit or interfere with the dedication, development or use of any land or building for public parks, other public recreation areas or public schools required for compulsory education; or with the use of land or buildings owned by the State of New York, the County of Erie or the Town of Hamburg and used for governmental purposes; or with the construction, installation, operation and maintenance for public utility purposes of water or gas pipes, mains, standpipes, reservoirs or elevated water tanks, or conduits, electric light or electric power transmission or distribution lines, telephone or telegraph lines, oil pipelines, sewers, sewer mains or incidental appurtenances; or with any highway, railroad right-of-way or mass transit right-of-way existing or hereafter authorized by the State of New York, the County of Erie or the Town of Hamburg. These exceptions, however, shall not be interpreted to permit yards, garages or other buildings for service or storage by said public utilities which are otherwise permitted by this chapter in appropriate districts. Installation of standpipes, reservoirs or elevated water tanks shall be permitted only upon approval of the Town Planning Board as to location, type of structure, a effect upon adjacent properties and proximity to similar use areas. The Town Planning Board may prescribe conditions which it deems necessary or desirable and may require a site plan of the proposed installation.