WSP03790

• File Number: 8220.101.13
• Description: Glen Canyon Dam/Lake Powell
• State: AZ
• Basin: Colorado Mainstem
• Date: 10/1/1998
• Author: Secretary of Inter
• Title: Report to Congress: Operations of the Glen canyon Dam Pursuant to the Grand Canyon Protection Act of 1992 ‎(Water Years 1997 and 1998)‎
• Water Supply Pro - Doc Type: Annual Report

8

3. Recommendation to the Secretary for the GCMRC to develop and initiate water year
1998 monitoring and research programs for Lake Powell. '

4. Objectives and information needs for all programs are to be reviewed in water year 1998
for implementation in water year 2000.

5, Recommendation to the Secretary to initiate an approximate 31,000 cfs test flow in
OctoberlNovember of water year 1998 to conserve sediment resources.

6. Recommendation to the Secretary to evaluate the effects of an approximate 45,000 cfs
beachlhabitat-bui1ding flow between January and June 1998 to mitigate the potentially
negative effects of sustained high steady releases on the biological, physical, and cultural
resources and riverain processes.

7. Selection of a TWG to work closely with the GCMRC in developing objectives,
information needs, and monitoring and research programs.

The TWG, established as a subgroup of the AMWG, completed the following activities in
water year 1997:

1. Initiated development of protocols and processes to evaluate and implement adaptive
management flow regimes as recommended by the AMWG.

2. Reviewed and evaluated the GCMRC's Water Year 1999 Annual Monitoring and
Research Plan.

3. Reviewed and evaluated the GCMRC's water year 1997 report entitled, State of Natural
and Cultural Resources in the Colorado River Ecosystem.

4. Reviewed and evaluated the GCMRC's information on the effects of an approximate
45,000 cfs beachlhabitat-building flow between January and June 1998.

Adaptive Management Program Activities - Water Year 1998

The AMWGrrwG activities include a broad cross-section of,programs as follows:

1. Continue development ofprotocols/procedures for operation of the AMWGrrwG.

2., Review of the AMP budget process and budget allocations for short- and long-term
programs.

....c..:~~:....,....J..,.._ ,..~.....::\.:j>-'_i:l'.!':'n."",,!!I."'_ ~",,,.';\"'..."~_~'ill ~~;;"~"'J"~'."':' ~.......~..,:. ~. '~..",.'.'-'-' " ,'J',';:':"'''' 'r."~.N;- .... _'.' '"_,'...... ......;. ,.w' ,. -......,;. -... ,.. _ - ,;.' J" ~~~,~...... .-,--~ .-'"---......:.