CRMWA History & System
Drought & CRMWA’s Response
Future Infrastructure Development
Presented by Kent Satterwhite, Canadian River Municipal Water Authority at the TWCA annual conference
TWCA Annual Conference
Mark L. Loethen, P.E., CFM, PTOE
Deputy Director - City of Houston
Planning & Development Services Division
Public Works & Engineering Department
Presentation at the TWCA mid year conference 2012 www.twca.org
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International Boundary and Water Commission,
United States Section
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TWCA Annual Conference
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Deputy Director - City of Houston
Planning & Development Services Division
Public Works & Engineering Department
Presentation at the TWCA mid year conference 2012 www.twca.org
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International Boundary and Water Commission,
United States Section
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Effective July 1, the Water Authority is reducing water supply deliveries to its 24 member agencies by 8 percent. The Water Authority is taking this action as a response to reduced water supplies caused by regulatory restrictions on water deliveries from Northern California, lingering drought, and a 13 percent cutback from the Water Authority's largest water supplier, the Metropolitan Water District of Southern California.
In April 2009, to prepare for these cutbacks, the Water Authority declared a Level 2 "Drought Alert," enabling member agencies to implement local mandatory water restrictions. Restrictions will vary by member agency. To find out the restrictions in your area, please visit www.sdcwa.org/manage/droughtordinance_agencies.phtml
Presentation by Board Chair Michael T. Hogan at the May 31 Water Talks Forum. This is a summary of the Water Authority's diversification strategy and recent investments in supply reliability.
021910 ASCE National Engineers Conferenceguest9a37090
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Board Chair Michael T. Hogan provides an introduction to Water Talks: Building and Securing Water Reliability, a community forum. Presentation is an overview of the Water Authority and potential dangers to our imported water pipelines and projects being done to prepare for an emergency, while protecting ratepayer interests.
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1. Canadian River
Municipal Water Authority
CRMWA History & System
Drought & CRMWA’s Response
Future Infrastructure Development
2. 2011
$82 million Mesa water rights purchase
CRMWA Timeline 2010 2011
Wellfield Expansion (double capacity)
2006
$50 million new water rights
2005
$30 million new water rights
2001
Salinity Control Project
2000 2001
Completion of John C Williams Wellfield
40 Years
900 Billion Gallons
1990
1980
1970
1968
Completion of Aqueduct
1965
Completion of Dam
1962
1960 Construction Begins
1960
CRMWA/BOR Contracts
1953
CRMWA is created by the State Legislature
1950 1950
Federal Approval
1949
Canadian River Water Users Association
1940’s
BOR/Corps Studies
16. Canadian River Project Oklahoma
Built by: Bureau of Reclamation
Texas
River
Lake
Conchas Meredith
Borger
Reservoir
Ute Lake Pampa
Canadian
Amarillo
New Mexico
Plainview
Texas
Levelland
Lubbock
Slaton
Tahoka
Brownfield
O'Donnell
Lamesa
0 10 20 30 40 50
Scale in Miles
17.
18.
19.
20. Current Groundwater System
Original Wellfield (JCW) - $83,500,000 Roberts
2005 Bond Issue - $50,000,000
2006 Bond Issue - $50,000,000
Hemphill
2009 Bond Issue - $21,600,000
Moore Hutchinson
2011 Bond Issue - $81,630,000 Phase 1-2
_________________________________
Phase 3
TOTAL - $286,730,000
Borger
Potter Pampa
Carson Gray Wheeler
Wellfield Capacity
• 46 Production Wells
Amarillo
• Estimated Avg Capacity 1,350 gpm
• 46 miles 54-inch pipe
• Total well capacity 100,000 acre-feet/yr
• Pipeline capacity 70,000 acre-feet/yr
To Southern Cities
21. What’s Next?
If Lake Meredith doesn’t come back “soon”, additional infrastructure to
produce this new water may be required to fill the original lake water system
with groundwater.
Original lake water Roberts
system design
capacity 112 MGD. Hemphill
Moore Hutchinson
Current groundwater Phase 1-2
system capacity is Phase 3
64 MGD. Borger
A second
groundwater system
could make the
Potter Pampa
original lake water
system whole. Carson Gray Wheeler
CRMWA Member Amarillo CRMWA II
Cities would then be
“drought proof”!
To Southern Cities
22. Transition from Lake Meredith to Groundwater
CRMWA’s water supply has
transitioned from lake water to
groundwater in just over 10
years.
With this current purchase, we
now have groundwater to last
well over a century, even under
drought conditions the entire
time.
A major expense but no one had
to move!
Editor's Notes
CRMWA was created in ‘53 and project construction began in 1960.They finished construction in ‘68 and started delivering water that year. I might note that since that time, we have delivered over 900 billion gallons of lake water. That is nearly a trillion gallons that would have came from the non-renewable Ogallala otherwise. In 2001, we completed the John C. Williams Wellfield and Aqueduct and began delivering groundwater. This project was designed to enhance the quality of the water being delivered by blending 25% groundwater with Meredith water in the pipeline. It has changed significantly in the short period since then. By 2005 it was obvious the Lake was in trouble. We began buying additional groundwater rights and are still doing that today.
This chart tells the story. The black dashed line across the middle is the average inflow in AF/yr over the history of the Lake. One thing that’s different for us compared to most of you is that our drought started in 2001.
In 2001 we broke an all time record for low inflow.
We broke that again in ’02. After ‘02, we did the math to see what the odds were of having 3 record breaking years in a row and it was clear from those results that it just wouldn’t happen.
We broke the record again in ‘03. ‘05 would have been a record breaker if it hadn’t been for 1, 2, & 3. 4 was a little better but still below average.
Then another record breaker in 6
A bad year in 7, slightly better in 8
another record breaker in 9
and nearly again in 10.
Then there was last year. Last year shattered the previous low inflow records. It was so bad that this year is the first year in our history that we don’t expect there to be any surface water available to deliver.
This graph shows the results of this run of bad years. In 2000, we had over 400,000 AF in storage at a depth of over 90’. Today we are under 22,000 AF (about 5% of what we had then) and a depth of just over 30’!
As you know, water quality typically follows storage volume. This is pretty much a mirror image of the storage volume in Meredith. The red line shows the state standard for chlorides and the Lake is now more than 4 times that standard at over 1300 ppm. Our total dissolved solids are over 3400 ppm! I’m not sure anyone would want this water even if we could get to it.
These pictures show visually what has happened to the lake. In the top picture, the lake was about 50’ deep at this mid-point on the Lake. In ‘08, thisisnow the end of the lakeratherthan the mid-point.
This is what it looks like now. I took this picture on a windy day last spring to show the dust blowing where there used to be Lake. I say this is what it looks like now but that isn’t entirely accurate. Later in 11 there was no hint of green to be seen except the trees and this time of year there is no green at all.
This is our original system. We lift the water 800’ from the Lake to Amarillo. Then it’s gravity flow to Lubbock and on to Lamesa. The system has a capacity of 112 MGD or 126,000 AF/yr. In ’01, our Salinity Control and groundwater projects came online. Last year we completed our 1st wellfield expansion. This expansion doubled the well capacity but didn’t change the transmission capacity. We now have about 100,000 AF/yr well capacity with around 70k transmission capacity.
When the drought 1st started, this is what our water rights looked like. At that time we didn’t know the drought had started.
By 2005, it was clear the Lake was in trouble. We purchased around 220,000 acres of high quality, highly productive water rights in 05 & 6. As you can see from this map, all of our acreage was contiguous but not the prettiest layout. Mesa Water was pretty intermingled with ours and if we were to both fully develop there would have been problems.
We closed on the Mesa Water the last business day of ‘11. The map is much prettier now but obviously there are still lots of theses white areas it would make sense for us to have. We are working on those areas now. We are really offering to buy these areas to be fair as much as anything. Nearly all of this is rough ranchland with no irrigation and only windmills for cattle water. Part of our agreement with these landowners is they can’t irrigate or have any commercial use of the water. Only livestock & domestic water and that means no feedlots and only one residence per 160 acres. We think we now own more groundwater than anyone in the nation. Around 26 million AF or 8½ trillion gallons. Under the worst circumstances, this is enough water to last us for 130 years. If the Lake comes back, that life will be much longer.
If the Lake doesn’t come back soon, we’ll need to add another pipeline to get this water to town. We are currently working on a study to see when this additional capacity will be required. Problem is, our member cities have a wide range of needs and abilities. They range in population from 230k to 830! The big end is growing and the small end is shrinking. Our early estimates of adding additional capacity is in the range of $250 million. That would double our groundwater delivery capacity but also double our investment in the project. It will be hard for our Cities to absorb but they may not have any choice depending on what happens with the Lake in the near future. When we add this additional capacity, our Cities will then be drought proof.
These are pictures taken from near where I took the other pictures except these are looking up-stream. Notice the salt cedar in the bottom picture. That‘s all dead now. We’ve sprayed over 24,000 acres of salt cedar in an attempt to increase inflow to Meredith. Now all we need is runoff. We’ve transitioned from surface water to groundwater in a little over 10 years. Our water supply has gone from 100% surface water to 100% groundwater. This has been a huge expense to our population base of ½ million people. The good news is, no one had to move. As I said earlier, we now have enough water to last 130 years under drought conditions the whole time and much longer if and when the Lake comes back.