Difference between revisions of "GCDAMP- HFE 2013"
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*Sediment in the system: '''1.5 Million metric tons''' | *Sediment in the system: '''1.5 Million metric tons''' | ||
*Peak CFS: '''~34,100''' | *Peak CFS: '''~34,100''' | ||
| − | * | + | *Initial estimate of costs to WAPA Hydropower: '''$1.74 million''' |
| + | *[[Media:Financial Analysis of Experimental Flows Vol6 final 9 3 2015.docx |Actual cost to WAPA Hydropower]]: '''$2.593 million''' | ||
*Estimated acre feet of water bypassed during HFE: '''approx. 129,000 af''' | *Estimated acre feet of water bypassed during HFE: '''approx. 129,000 af''' | ||
*Hourly Releases before and after HFE: fluctuate between '''5,000 to 8,000 cfs''' | *Hourly Releases before and after HFE: fluctuate between '''5,000 to 8,000 cfs''' | ||
| Line 27: | Line 28: | ||
== SUPPORTING DOCUMENTS == | == SUPPORTING DOCUMENTS == | ||
| − | *[[Media:131025 Final HFE Memo to Larry Walkoviak 10-25-13 with attachment.PDF | | + | *[[Media:Financial Analysis of Experimental Flows Vol6 final 9 3 2015.docx |Financial analysis of experimental releases conducted at Glen Canyon Dam during Water Year 2014 (i.e. the 2013 HFE)]] |
| − | *[[Media:131022 Basin States Knowles.pdf | | + | *[[Media:131025 Final HFE Memo to Larry Walkoviak 10-25-13 with attachment.PDF |Final HFE Memo to Larry Walkoviak 10-25-13 with attachment]] |
| − | *[[Media:131022 HFE Routing - start11th9AM.pdf | | + | *[[Media:131022 Basin States Knowles.pdf |Fall 2013 HFE Protocol Decision Process]] |
| − | *[[Media:131022 Basin States Schmidt.pdf | | + | *[[Media:131022 HFE Routing - start11th9AM.pdf |2013 HFE Locations and dates of hydrograph routing]] |
| − | *[[Media:131022 Basin States Vanderkooi.pdf | | + | *[[Media:131022 Basin States Schmidt.pdf |System Overview to Basin States- USGS Schmidt]] |
| + | *[[Media:131022 Basin States Vanderkooi.pdf |USGS Science Overview- Fisheries and Aquatic Ecology to Basin States- SVanderkooi]] | ||
== COMPLIANCE == | == COMPLIANCE == | ||
Revision as of 16:36, 8 July 2016
| High Flow Experiment- 2013 | |
 |
- HFE DETAILS -SUMMARY:
- Sediment in the system: 1.5 Million metric tons
- Peak CFS: ~34,100
- Initial estimate of costs to WAPA Hydropower: $1.74 million
- Actual cost to WAPA Hydropower: $2.593 million
- Estimated acre feet of water bypassed during HFE: approx. 129,000 af
- Hourly Releases before and after HFE: fluctuate between 5,000 to 8,000 cfs
- Direct expenses for removal of concession assets: $9,961
- Units available: 6
- Powerplant capacity = ~19,100 cfs
- November volume = 670 kaf
- Start Upramp: 10am
- Finish HFE: 1pm
- Total HFE duration: 5 days, 3 hrs
SUPPORTING DOCUMENTS
- Financial analysis of experimental releases conducted at Glen Canyon Dam during Water Year 2014 (i.e. the 2013 HFE)
- Final HFE Memo to Larry Walkoviak 10-25-13 with attachment
- Fall 2013 HFE Protocol Decision Process
- 2013 HFE Locations and dates of hydrograph routing
- System Overview to Basin States- USGS Schmidt
- USGS Science Overview- Fisheries and Aquatic Ecology to Basin States- SVanderkooi
COMPLIANCE
- A 30-day letter was sent notifying MOA signatories of a possible HFE in November 2013.
- DOI consultation meeting with the Basin States_ October 22, 2013.
- Government to Government tribal consultation: Pueblo of Zuni_ September 10, 2013.
- Government to Government tribal consultation: Navajo Nation_ September 11, 2013.
CONCERNS
- Pueblo of Zuni: concern that multiple HFE's under the HFE protocol could result in power cost increases for individual rate payers.
Request to USBR made for detailed description on how the economic effects of multiple HFEs on power rate payers will be monitored.
SEDIMENT
- "The quality of sand available is huge, and to put it in perspective, there will be more sand AFTER this HFE (about 800,000 mt) than before last year's HFE (about 650,000 mt)." [GKnowles_TWG MM_131106]
ADDITIONAL
- GCMRC has installed digital cameras that capture 5 Images every day at 33 sandbar monitoring sites throughout Marble and Grand Canyon between Lees Ferry and Diamond Creek.
- Modified original proposal to avoid additional WAPA hydropower loss (off-peak hour sales) -- Saves $30,000
- Glen Canyon Dam will start pumping an Olympic-sized swimming pool worth of water into the Colorado River every other minute--INCORRECT--LINK
- “By sending enough water downstream to fill an Olympic-sized swimming pool every few seconds...
- the 96-hour-release will pick up enough sand from river channels to fill a building as big as a football field and as tall as the Washington Monument, all the way to the brim.”
- Lake Powell is expected to drop 2.5 feet during the course of the week. --LINK
- SVaderkooiFact Check on swimming pool comparison: Wikipedia Swimming pool size. Assuming a depth of 2 m, a 50 m x 25 m pool equals about 88,000 cubic feet. At peak Reclamation said the release from the dam was around 34,000 cfs so an olympic-sized pool would fill in about 2.6 s. Note that the USGS gage at Lees Ferry measured peak flow at about 37,000 cfs, so a little quicker (about 2.4 s) if you use that number.
Contributor: Category: Sediment, Recreation, Water delivery
