Page:United States Statutes at Large Volume 87.djvu/142

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PUBLIC LAW 93-50-JULY 1, 1973

[87 STAT.

other associated auxiliary equipment; installation on the existing power plant site of a new outdoor main electrical substation and underground distribution system; construction on the power plant site of a new operations building and installation therein of (a) equipment necessary to centralize the administration and control functions of both the new and existing refrigeration plants, (b) new sanitary and maintenance facilities, and (c) central monitoring and control equipment adequate to supervise and direct the operation of the entire Capitol Power Plant and its distribution systems; installation in a tunnel across the north portion of the existing power plant site of a new underground chilled water pipe "headering" system to provide for appropriate connection of the existing and proposed new refrigeration plants with the existing and future distribution systems; installation of necessary supply and return mains in branch tunnels and/or conduits to connect the Library of Congress James Madison Memorial Building and the Senate Office Building Extension to the existing steam distribution system and to the chilled water distribution system with flow-limiting equipment and flow and temperature measuring instrumentation; modification of the existing chilled water distribution system to accommodate the additional flow of chilled water to the James Madison Memorial Building and the Senate Office Building Extension; installation of sectionalizing valves in both the chilled water supply and return mains at selected points in the existing distribution system; reactivation, or replacement as necessary, of inoperative existing flow-limiting and flow-metering devices on chilled water mains in buildings supplied by the plant, and installation of new devices where they do not exist in such buildings; installation of new dust collectors for the four existing oil-fired boilers and making necessary resulting modifications to mechanical draft equipment and smoke monitoring devices; installation of new acoustical enclosures to minimize the noise from existing induced draft fans, overfire fans, forced draft fans, and diesel-driven air compressors; soundproofing local control rooms for protection of operators in both the existing refrigeration plant and the new refrigeration plant building; installation of new noise attenuated ventilation system for the existing refrigeration plant and for the new refrigeration plant building; installation of an acoustical barrier for the existing cooling tower installations to shield local residents from objectionable noise; and providing temporary quarters to house the present annex building activities until the new Contract author- operations building is constructed and available for occupancy: Provided, That the Architect of the Capitol, under the direction of the ity House Office Building Commission, is hereby authorized and directed to enter into such contracts, incur such obligations, and make such expenditures, including expenditures for personal and other services as may be necessary to carry out the provisions of this appropriation: Provided fwiher^ That any changes in the aforesaid basic plan shall be subject to the approval of the Commission; $17,400,000 to remain available until expended and said amount shall be carried under the appropriation account "Modifications and Enlargement, Capitol Power Plant" as an addition to the appropriation of $1,200,000 provided under that heading in the Supplemental Appropriations Act, 1972 (85 Stat. 637; Public Law 92-184). ADDITIONAL PARKING FACILITIES FOR CONGRESSIONAL EMPLOYEES

To enable the Architect of the Capitol, under the direction of the Select Committee on Parking of the House of Representatives created and appointed under authority of House Resolution 145, Ninety-third Congress, agreed to February 7, 1973, and the Senate Committee on Rules and Administration, to provide additional parking facilities for

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