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<br />RIO GRANDE COMPACT COMMISSION REPORT
<br />
<br />RULES AND REGULATIONS FOR ADMINISTRATION OF
<br />THE RIO GRANDE COMPACT
<br />
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<br />
<br />A Compact, known as the Rio Grande Compact, between the States of Colorado,
<br />New Mexico and Texas, having become effective on May 31, 1939 by consent of the Con-
<br />gress of the United States, which equitably apportions the waters of the Rio Grande above
<br />Fort Quilman and permits each State to develop its water resources at will, subject only to
<br />its obligations to deliver water in accordance with the schedules set forth in the Compact,
<br />the following Rules and Regulations have been adopted for its administration by the Rio
<br />Grande Compact Commission; to be and remain in force and effect only so long as the
<br />same may be satisfactory to each and all members of the Commission, and provided always
<br />that on the objection of any member of the Commission, in writing, to the remaining two
<br />members of the Commission alter a period of sixty days from the date of such objection, the
<br />sentence, paragraph or any portion or all of these rules to which any such objection shall be
<br />made, shall stand abrogated and shalltherealter have no further force and effect; it being
<br />the intent and purpose of the Commission to permit these rules to obtain and be effective
<br />only so long as the same may be satisfactory to each and all of the Commissioners.
<br />
<br />GAGING STATIONS 11
<br />
<br />Responsibility for the equipping, maintenance and operation of the stream gaging
<br />stations and reservoir gaging stations required by the provisions of Article II of the Compact
<br />shall be divided among the signatory States as follows:
<br />
<br />(a) Gaging stations on streams and reservoirs in the Rio Grande Basin above the
<br />Colorado-New Mexico boundary shall be equipped, maintained, and operated by Colorado
<br />in cooperation with the U.S. Geological Survey.
<br />
<br />(b) Gaging stations on streams and reservoirs in the Rio Grande Basin below
<br />Lobatos and above Caballo Reseivoir shall be equipped, maintained and operated by New
<br />Mexico in cooperation with the U.S. Geological Survey to the extent that such stations are
<br />not maintained and operated by some other Federal agency.
<br />
<br />(c) Gaging stations on Elephant Bulle Reservoir and on Caballo Reservoir, and
<br />the stream gaging stations on the Rio Grande below those reservoirs shall be equipped,
<br />maintained and operated by or on behalf of Texas through the agency of the U.S. Bureau of
<br />Reclamation.
<br />
<br />The equipment, method and frequency of measurements at each gaging station
<br />shall be sufficient to obtain records at least equal in accuracy to those classified as "good"
<br />by the U.S. Geological Survey. Water-stage recorders on the reservoirs specifically named
<br />in Article II of the Compact shall have sufficient range below maximum reservoir level to
<br />record major fluctuations in storage. Staff gages may be used to determine fluctuations
<br />below the range of the water-stage recorders on these and other large reservoirs, and staff
<br />gages may be used upon approval of the Commission in lieu of water-stage recorders on
<br />small reservoirs, provided that the frequency of observation is sufficient in each case to
<br />establish any material changes in water levels in such reservoirs.
<br />
<br />11 Amended at Eleventh Annual Meeting, February 23,1950.
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