; and to publish and disseminate data relative to the foregoing activities; $1,515,452,000, to remain available until September 30, 2025; of which $104,184,000 shall remain available until expended for satellite operations; and of which $74,840,000 shall be available until expended for deferred maintenance and capital improvement projects that exceed $100,000 in cost: Provided, That none of the funds provided for the ecosystem research activity shall be used to conduct new surveys on private property, unless specifically authorized in writing by the property owner: Provided further, That no part of this appropriation shall be used to pay more than one-half the cost of topographic mapping or water resources data collection and investigations carried on in cooperation with States and municipalities: Provided further, That of the amount appropriated under this heading, $5,237,000 shall be for projects specified for Special Initiatives in the table titled Congressionally Directed Spending Items in the report accompanying this Act: Provided further, That amounts in the preceding proviso may be transferred to the appropriate program, project, or activity under this heading and shall continue to only be available for the purposes and in such amounts as such funds were originally appropriated: Provided further, That of the amount appropriated under this heading, not to exceed $15,000 may be for official reception and representation expenses. ADMINISTRATIVE PROVISIONS From within the amount appropriated for activities of the United States Geological Survey such sums as are necessary shall be available for contracting for the furnishing of topographic maps and for the making of geophysical or other specialized surveys when it is administratively determined that such procedures are in the public interest; construction and maintenance of necessary buildings and appurtenant facilities; acquisition of lands for gauging stations, observation wells, and seismic equipment