Difference between revisions of "WATER QUALITY"

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*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/14apr08/TWP_14jun06.pdf?bcsi_scan_cf0ea36431a6106e=xBHF7QVHXt6Zx5nJZ4cG0wktr3sHAAAA6aC3BQ==&bcsi_scan_filename=TWP_14jun06.pdf Glen Canyon Dam Adaptive Management Program Triennial Budget and Work Plan— Fiscal Years 2018–2020]
 
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/14apr08/TWP_14jun06.pdf?bcsi_scan_cf0ea36431a6106e=xBHF7QVHXt6Zx5nJZ4cG0wktr3sHAAAA6aC3BQ==&bcsi_scan_filename=TWP_14jun06.pdf Glen Canyon Dam Adaptive Management Program Triennial Budget and Work Plan— Fiscal Years 2018–2020]
 
*[https://pubs.usgs.gov/of/2008/1153/ USGS Workshop on Scientific Aspects of a Long-Term Experimental Plan for Glen Canyon Dam, April 10–11, 2007, Flagstaff, Arizona]
 
*[https://pubs.usgs.gov/of/2008/1153/ USGS Workshop on Scientific Aspects of a Long-Term Experimental Plan for Glen Canyon Dam, April 10–11, 2007, Flagstaff, Arizona]
*[[Media:Jones 2001 Final report PEP GCMRC IWQP.pdf| Final report of the Protocol Evaluation Panel for the Grand Canyon Monitoring and Research Center Integrated Water Quality Program (IWQP)]]
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*[[Media:Jones 2001 Final report PEP GCMRC IWQP.pdf| Final report of the 2001 Protocol Evaluation Panel for the Grand Canyon Monitoring and Research Center Integrated Water Quality Program (IWQP)]]
 
*[https://pubs.usgs.gov/ds/471/pdf/ds471.pdf Historical Physical and Chemical Data for Water in Lake Powell and from Glen Canyon Dam Releases, Utah-Arizona, 1964–2013]
 
*[https://pubs.usgs.gov/ds/471/pdf/ds471.pdf Historical Physical and Chemical Data for Water in Lake Powell and from Glen Canyon Dam Releases, Utah-Arizona, 1964–2013]
 
*[https://pubs.usgs.gov/circ/1282/ The State of the Colorado River Ecosystem in Grand Canyon: A report of the Grand Canyon Monitoring and Research Center 1991-2004]
 
*[https://pubs.usgs.gov/circ/1282/ The State of the Colorado River Ecosystem in Grand Canyon: A report of the Grand Canyon Monitoring and Research Center 1991-2004]
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'''2005'''
 
'''2005'''
 
*[http://www.usbr.gov/newsroom/newsrelease/detail.cfm?RecordID=8041 Reclamation to continue experimental operations at Glen Canyon Dam; Efforts address low dissolved oxygen levels below dam]
 
*[http://www.usbr.gov/newsroom/newsrelease/detail.cfm?RecordID=8041 Reclamation to continue experimental operations at Glen Canyon Dam; Efforts address low dissolved oxygen levels below dam]
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! <h2 style="margin:0; background:#cedff2; font-size:120%; font-weight:bold; border:1px solid #a3b0bf; text-align:left; color:#000; padding:0.2em 0.4em;"> Water Quality PEP Reviews </h2>
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*[[Media:Jones 2001 Final report PEP GCMRC IWQP.pdf| Final report of the 2001 Protocol Evaluation Panel for the Grand Canyon Monitoring and Research Center Integrated Water Quality Program (IWQP)]]
  
 
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Revision as of 12:40, 31 October 2017


ForebayWaterQuality.jpg

Desired Future Condition for Water Quality

Water quality with regards to dissolved oxygen, nutrient concentrations and cycling, turbidity, temperature, etc., is sufficient to support natural ecosystem functions, visitor safety and visitor experience to the extent feasible and consistent with the life history requirements of focal aquatic species.
• Ecosystem-sustaining nutrient distribution, flux, and cycling.
• Hydro-physical conditions and characteristics of the CRE necessary to sustain aquatic biota.
• Acceptable water quality for human health and visitor experience.

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Updates

2017 Water Quality PEP

Reading List

Adaptive Management

Calcite Coprecipitation

CE-QUAL Modeling

Contaminants

General Lake Powell Limnology

Long-term Water Quality Trends

P Biogeochemistry

USGS Data Series, Circulars, and other Reports

Water Quality and Glen Canyon Dam Management

Water Quality and Metabolism in the Colorado River below Glen Canyon Dam


Links and Information

Water Quality Gages

Papers and presentations

2017

2016

2015

2014

2012

2010

2006

2005

Water Quality PEP Reviews

Modifying releases at Glen Canyon Dam to improve water quality in the Lees Ferry reach

Rough operation of the turbines

Increases the oxygenation of water going through the power plant Is damaging to the turbines

Oxygenation of the tailwater using the bypass tubes

The Basin States have maintained that according to Sec 602a of the Colorado River Basin Project Act (1968), the bypass tubes at Glen Canyon Dam can only be used to avoid anticipated spills from Lake Powell. The Basin States have agreed to bypass at Glen Canyon Dam for HFEs on the condition that it be done as part of an experiment and not a management action or operational decision. Costs associated with any release that bypasses the powerplant for reasons other than to avoid a spill or for experimentation relating to HFEs would have to be borne by the GCDAMP (see DOI determination for costs of the 2004 BHBF).

Adding power generation to the bypass tubes

Allows for drawing water from deeper in Lake Powell where colder and more oxygenated water may be present.

Other methods:

  • Forebay diffusers
  • Side stream super-saturation
  • Aeration
  • Turbine venting
  • Surface water pumps (impellers)

(Mobley Engineering: Hydropower Enhancement Technologies)

Other Stuff

Forebay temperature 2000-2016
[1]
Forebay dissolved oxygen 2000-2016
[2]