Glen Canyon Dam Adaptive Management Program Administrative History

Federal advisory committees — which may also be designated as commissions, councils, or task forces — are created as provisional advisory bodies that can circumvent bureaucratic constraints to collect a variety of viewpoints on specific policy issues. Advisory bodies have been created to address a host of issues, ranging from policies on organ donation to the design and implementation of the Department of Homeland Security. These committees are often created to help the government manage and solve complex or divisive issues. Such committees may be mandated to render independent advice or make recommendations to various bodies within the federal government by congressional statute, created by presidential executive order, or required by fiat of an agency head.

Congress formally acknowledged the merits of using advisory committees to acquire viewpoints from business, academic, governmental, and other interests when it passed the Federal Advisory Committee Act (FACA) in 1972 (5 U.S.C. Appendix — Federal Advisory Committee Act; 86 Stat.770, as amended). Enactment of FACA was prompted by the belief of many citizens and Members of Congress that such committees were duplicative, inefficient, and lacked adequate control or oversight. Additionally, some citizens believed the committees failed to sufficiently represent the public interest — an opinion punctuated by the closed-door meeting policies of many committees. FACA mandated certain structural and operational requirements for many federal committees, including formal reporting and oversight procedures for the advisory bodies. FACA requires that committee membership be “fairly balanced in terms of the points of view represented,” and advice provided by committees be objective and accessible to the public. Additionally, FACA requires nearly all committee meetings be open to the public. Pursuant to statute, the General Services Administration (GSA) maintains and administers management guidelines for federal advisory committees. During FY2008, GSA reported a total of 917 active committees with nearly 64,000 total members that provided advice and recommendations to 50 federal agencies. The total operating costs for these committees in FY2008 was $344.3 million. Agency administrators, the President, and Congress continue to create federal advisory committees in the 111th Congress.

Committees that fit certain FACA criteria and are created by the executive branch are governed by FACA guidelines. FACA was designed to eliminate duplication of committee expertise and make advisory bodies in the executive branch more transparent. Congress may decide, however, to place FACA requirements on a body that it statutorily created. Existing statutes are sometimes unclear as to whether a congressionally created committee would have to comply with FACA requirements — except in cases when the statute explicitly mandates FACA’s applicability.

Legislation (H.R. 1320) was reintroduced in the 111th Congress that would require members of advisory committees be selected without regard to their partisan affiliation. Also pursuant to the legislation, executive branch agency heads would be authorized to require members serving on agency advisory committees to fully disclose any actual or potential conflicts of interest. Additionally, GSA’s Administrator would be given authority to create regulations and guidelines to further ensure that an advisory committee offered impartial advice and recommendations. The bill would also require each advisory committee to create a website, publish advance notice of meetings, and provide public access to proceedings on its website. The bill was sent to the House Committee on Oversight and Government Reform, and ordered to be reported from the committee on March 10, 2009. Similar legislation was introduced in the 110th Congress (H.R. 5687), but was not enacted.

Vegetation changes in the canyon of the Colorado River between Glen Canyon Dam and Lake Mead were studied by comparing photo­ graphs taken prior to the completion of the Glen Canyon Dam in 1963 with those taken afterwards at the same sites. The old photo­ graphs, taken by J. K. Millers, T. H. O'Sullivan, William Bell, F. A. Nims, R. B. Stanton, N. W. Carkhuff, N. H. Darton, L. R. Freeman, E. C. LaRue, and others, document conditions as they were between 1872 and 1963. In general, the older pictures show an absence of riparian plants along the banks of the river. The new photographs of each pair were taken in 1972 through 1976. The most obvious vege­tation change revealed by the photograph comparison is the in­ creased density of many species. Exotic species, such as saltcedar and camelthorn, and native riparian plants, such as sandbar willow, arrowweed, desert broom, and cattail, now form a new riparian com­munity along much of the channel of the Colorado River between Glen Canyon Dam and the Grand Wash Cliffs.

The matched photographs also reveal that changes have occurred in the amount of sand and silt deposited along the banks. The photo­ graphs show that in some areas erosion has been significant since the time of the earlier photograph while at other locations sediment has accumulated on river bars and terraces. Detailed maps are presented showing distribution of 25 plant species. Some of these, such as Russian olive and elm, were unknown along the Grand Canyon reach of the Colorado River before 1976.

Relevant data are presented to show changes in the hydrologic regime since completion of Glen Canyon Dam. Flooding, as expressed by annual maximum stage, has decreased in amplitude, and its sea­ son of occurrence has changed from spring (May-June) to a longer period from April through October. Dam construction has had a moderating influence on several other hydrologic variables. Com­pared to the predam era, discharge through the year now varies within narrow limits, changing little from month to month or season to season; annual maximum discharges are now strikingly uniform, and sediment load has materially decreased. Increases have occurred in some characteristics, however, such as daily variation in river stage and median discharge.

The interaction of decreased flooding, decreased sediment load, and increased riparian plant coverage makes the future of existing river fans, bars, and terraces uncertain. The establishment of a new ecological equilibrium at the bottom of the Grand Canyon may re­ quire many decades.