1 1 www.WaterAssembly.org www.WaterAssembly.org (505) 797-4306 (505) 797-4306 Bob Wessely Bob Wessely 867-3889 867-3889 [email protected][email protected]April 5, 2008 April 5, 2008 Water in the Water in the Middle Rio Middle Rio Grande Grande Context Presentation Context Presentation for for Placitas Issues Session Placitas Issues Session
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Water in the Middle Rio Grande Context Presentation for Placitas Issues Session
Water Assembly. water unites us el agua nos une. www.WaterAssembly.org (505) 797-4306. Water in the Middle Rio Grande Context Presentation for Placitas Issues Session. Bob Wessely 867-3889 [email protected] April 5, 2008. Why Are We Here?. Only to Provide a Regional Perspective - PowerPoint PPT Presentation
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Water in the Water in the Middle Rio GrandeMiddle Rio Grande
Context PresentationContext Presentationforfor
Placitas Issues SessionPlacitas Issues Session
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Why Are We Here?Why Are We Here?
Only to Provide a Regional PerspectiveOnly to Provide a Regional Perspectivefor thefor the
Placitas Water SituationPlacitas Water Situation
33
SummarySummaryDiverse Region; Over-Spending Its WaterDiverse Region; Over-Spending Its Water
Placitas Overview:Placitas Overview:Extensive 2002 Peggy Johnson Hydrogeology ReportExtensive 2002 Peggy Johnson Hydrogeology Report
New Mexico Tech Report OF-469 – Available in Placitas LibraryNew Mexico Tech Report OF-469 – Available in Placitas LibraryCharacteristics Vary Greatly from Place to PlaceCharacteristics Vary Greatly from Place to PlaceLaced with Geological Faults - “Shoebox Aquifers”Laced with Geological Faults - “Shoebox Aquifers”
Some Sources Disconnected, Others Cover Wide Areas Some Sources Disconnected, Others Cover Wide Areas Some Water in Rock Cracks, Some in Sandy Soils Some Water in Rock Cracks, Some in Sandy Soils
Residence Time of Groundwater Residence Time of Groundwater Some Ancient / Mined; Some Renewed by Recent PrecipitationSome Ancient / Mined; Some Renewed by Recent PrecipitationAge in Ground Ranges from 6 Months to 35,000 YearsAge in Ground Ranges from 6 Months to 35,000 Years
Slow Underground Flows - Generally toward Rio GrandeSlow Underground Flows - Generally toward Rio Grande
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The Regional Water PlanThe Regional Water Plan
• Seven Years in the Making; Seven Years in the Making; Accepted in 2004Accepted in 2004
• Unusually Active and Intense Unusually Active and Intense General Public InvolvementGeneral Public Involvement
• Sound Scientific and Technical BasisSound Scientific and Technical Basis
Four Similar Sized Sectors in the RegionFour Similar Sized Sectors in the Region
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55,000 Acre Feet is 18 Billion Gallons55,000 Acre Feet is 18 Billion GallonsEnough to Fill a Football Field 7Enough to Fill a Football Field 7½½ Miles Deep, Every Year ! Miles Deep, Every Year !
The Regional Water Budget Bottom LineThe Regional Water Budget Bottom Line
Inflows Inflows 261,000 261,000
af/yraf/yr
ConsumptionConsumption316,000316,000
af/yraf/yrDeficitDeficit55,00055,000
af/yraf/yr
Ongoing Deficit Spending of Water – 15-20%Ongoing Deficit Spending of Water – 15-20%Last Quarter of the 20Last Quarter of the 20 thth Century Century
77
Wettest Quarter Century in 2000 YearsWettest Quarter Century in 2000 Years
Average rainfall 14.5 inches/year
Chaco Canyon abandoned
Rainfall Over 2000 Years in New Mexico
Mesa Verde abandoned
BC AD
Tree rings from El Malpais National Monument (Henri Grissino-Mayer)
Last Quarter Century
We Were Overspending When We Were FlushWe Were Overspending When We Were Flush
+20%+20%
-20%-20%
avg.avg.
88
Aquifers in the Aquifers in the Albuquerque Albuquerque
Area Area are Drawn Down are Drawn Down
1960 to 20001960 to 2000
Source: U.S. Geological Survey - 2003
Paseo Paseo del Nortedel Norte
Rio BravoRio Bravo
I-25I-25
I-40I-40 I-40I-40
I-25I-25
MontañoMontaño
Puts a Substantial Drain on River FlowsPuts a Substantial Drain on River Flows
99
The Population is GrowingThe Population is Growing
Three Quarters of New Mexico’s New Residents Move HereThree Quarters of New Mexico’s New Residents Move Here
MRG Population Past and Present - 1910 to 2030
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
1910 1930 1950 1970 1990 2005 2015 2025
Bernalillo
Sandoval
Valencia
1010
… … and the World is Warmingand the World is Warming
1900 2000 21001900 2000 2100
+9+9º F.º F.
-3-3º F.º F.
00º F.º F.
New Mexico Temperature Change New Mexico Temperature Change
SummerSummer
WinterWinter
Which Will Have ConsequencesWhich Will Have Consequences