Difference between revisions of "Grand Canyon Protection Act"
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*[https://www.usbr.gov/lc/region/pao/pdfiles/mextrety.pdf The Water Treaty of 1944 with Mexico] | *[https://www.usbr.gov/lc/region/pao/pdfiles/mextrety.pdf The Water Treaty of 1944 with Mexico] | ||
*[https://www.usbr.gov/lc/region/pao/pdfiles/supctdec.pdf The decree of the Supreme Court in Arizona v. California of 1964] | *[https://www.usbr.gov/lc/region/pao/pdfiles/supctdec.pdf The decree of the Supreme Court in Arizona v. California of 1964] | ||
| − | *[ | + | *[https://www.usbr.gov/uc/rm/crsp/index.html The Colorado River Basin Project ] |
| − | *[ | + | *[[Media:1996 GCPA nonreimbursability early ltr.pdf| 1996 Letter: Financial Aspects of the Grand Canyon Protection Act - Nonreimbursablity Letter]] |
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| + | ! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3bfb1; text-align:left; color:#000; padding:0.2em 0.4em;"> AMWG FACA Committee Guidance </h2> | ||
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| + | It is quite clear that when Congress enacted the Grand Canyon Protection Act of 1992, 106 | ||
| + | Stat. 4669 (GCPA), it intended to maintain all that had gone before the Compacts, the Park units, | ||
| + | and Glen Canyon Dam downstream NPS resources without interfering with the "Law of the | ||
| + | River," including compact and treaty obligations for water delivery (GCPA, section 1802(a) and (b)). | ||
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| + | The Senate Report on the bill puts it quite simply: The primary purpose of this title is to authorize | ||
| + | changes in the operation of Glen Canyon Dam to prevent damage to downstream resources, | ||
| + | principally the dam's power operations. The Secretary's responsibilities for water storage, allocation | ||
| + | and delivery act as limits on the Secretary's discretion in implementing the GCPA. It is also clear | ||
| + | that Congress understood that these objectives would have certain costs in the form of lost | ||
| + | incremental hydropower generating opportunity (GCPA, section 1809) and that the existence of the | ||
| + | dam was to be taken as a given. | ||
| + | |||
| + | The basic question Congress was addressing was how Glen Canyon Dam operations might be | ||
| + | modified within the provisions of existing law so as to improve conditions for downstream NPS | ||
| + | resources (with similar benefits certainly occurring on other similarly situated lands). The GCPA | ||
| + | itself does not direct consideration of cultural resources within the boundaries of Native American | ||
| + | reservations, only "the values for which Grand Canyon National Park and Glen Canyon National | ||
| + | Recreation Area were established," although all federal agencies have similar obligations under other | ||
| + | law. The entire adaptive management program (AMP), including the Grand Canyon Monitoring and | ||
| + | Research Center and the Adaptive Management Work Group, must be understood within this | ||
| + | context. In accordance with section 1804 of the GCPA, the EIS was conducted to attempt to find an | ||
| + | answer to that question, and the 1996 ROD was the Department's best first answer. Recognizing | ||
| + | that more experience and knowledge with operations might enable further refinements in operations | ||
| + | and might further improve downstream resource conditions, however, Congress added section 1805 | ||
| + | to the GCPA. This section required the Secretary to "establish and implement long-term monitoring | ||
| + | programs and activities that will ensure that Glen Canyon Dam is operated in a manner consistent | ||
| + | with section 1802," namely, "to protect, mitigate adverse impacts to, and improve the values for | ||
| + | which Grand Canyon National Park and Glen Canyon National Recreation Area were established," | ||
| + | within the parameters of other applicable law and the physical constraints of the dam. Accordingly, | ||
| + | the Department included in the EIS and in the ROD the provisions setting up the AMP, thereby | ||
| + | allowing for further refinement of and changes to dam operations to better meet the GCPA | ||
| + | objectives. | ||
| + | |||
| + | The charge given to the AMWG in its Charter is to "facilitate the AMP, recommend suitable | ||
| + | monitoring and research programs, and make recommendations to the Secretary as required to meet | ||
| + | the requirements of the Act. The scope of the AMWG responsibility, therefore, is to identify | ||
| + | aspects of dam operations that can be modified to beneficially affect the downstream resources | ||
| + | identified as the focus of study (i.e. "the target") in the EIS. This covers flow rates, ramping rates, | ||
| + | periodicity of peak flows, monitoring sediment input rates and the relation of sediment movement to | ||
| + | water release and ramping rates, chemical content and temperature of releases, among possible others | ||
| + | --any aspect of dam operations, in other words, which has a reasonably demonstrable effect on the | ||
| + | downstream resources sought to be improved by the GCPA. The key to the scope of AMWG's | ||
| + | responsibilities is whether a specific desired resource effect downstream of the dam can be achieved | ||
| + | through some manipulation of dam operations. Under the ROD, the upper limit of planned release | ||
| + | level is 45,000 cfs. Long-term monitoring and research, including test flows within the current | ||
| + | range of authorized operations, are intended to enable finer and finer tuning of operations over time, | ||
| + | as additional knowledge and experience are gained, to better achieve the target mix of resource | ||
| + | benefits, as outlined in the EIS, pages 54-65. [https://www.usbr.gov/uc/progact/amp/amwg/2002-07-17-amwg-meeting/Attach_10b.pdf] | ||
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Latest revision as of 11:54, 27 February 2026
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Section 1802. PROTECTION OF GRAND CANYON NATIONAL PARK. (a) In General. -- The Secretary shall operate Glen Canyon Dam in accordance with the additional criteria and operating plans specified in section 1804 and exercise other authorities under existing law in such a manner as to protect, mitigate adverse impacts to, and improve the values for which Grand Canyon National Park and Glen Canyon National Recreation Area were established, including, but not limited to natural and cultural resources and visitor use. (b) Compliance With Existing Law. -- The Secretary shall implement this section in a manner fully consistent with and subject to the Colorado River Compact, the Upper Colorado River Basin Compact, the Water Treaty of 1944 with Mexico, the decree of the Supreme Court in Arizona v. California, and the provisions of the Colorado River Storage Project Act of 1956 and the Colorado River Basin Project Act of 1968 that govern allocation, appropriation, development, and exportation of the waters of the Colorado River basin. (c) Rule of Construction. -- Nothing in this title alters the purposes for which the Grand Canyon National Park or the Glen Canyon National Recreation Area were established or affects the authority and responsibility of the Secretary with respect to the management and administration of the Grand Canyon National Park and Glen Canyon National Recreation Area, including natural and cultural resources and visitor use, under laws applicable to those areas, including, but not limited to, the Act of August 25, 1916 (39 Stat. 535) as amended and supplemented. |
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