Panhandle Water Planning Area
Initially Prepared Plan
Panhandle Water Planning Area
AmarilloApril 28, 2010
CONSULTANTS:Freese and Nichols, Inc.Texas AgriLifeIntera, inc.
Panhandle Water Planning Area
Panhandle Water Planning Area
State Water Plan
Panhandle Water Planning Area
Panhandle Water Planning Group
22 members representing:• Municipalities• River Authorities• Counties• Public• Environmental• Electrical Generating Utilities
• Water Utilities• Water Districts• Industrial• Small Business• Agriculture• Higher Education
Panhandle Water Planning Area
2011 Initially Prepared Plan Update of 2006 Plan 8 Chapters Supporting Appendices Available for Review Final Plan – September 1, 2010
Panhandle Water Planning Area
Panhandle Water Planning Area 21 Counties Agribusiness
Panhandle Water Planning Area
Groundwater- Groundwater Conservation Districts- Groundwater Management Areas
Panhandle Water Planning Area
Wholesale Water Providers Seven WWPs
CRMWA Amarillo Cactus Borger Greenbelt M&IWA Mesa Water, Inc. Palo Duro River Authority
Panhandle Water Planning Area
PWPA Population- Growth rate = 0.7%- Occur near cities
Panhandle Water Planning Area
PWPA Demands Decrease over time Reductions in irrigation
0
200,000
400,000
600,000
800,000
1,000,000
1,200,000
1,400,000
1,600,000
1,800,000
2010 2020 2030 2040 2050 2060
Wat
er D
eman
ds (
ac-f
t/yr
)
Irrigation Demands Livestock Demands Manufacturing Demands
Mining Demands Municipal Demands Steam Electric Demands
Panhandle Water Planning Area
PWPA Demands- Largest in heavily irrigated counties
Panhandle Water Planning Area
97% Supply in PWPA - Groundwater
Major Aquifers Minor Aquifers
Maj
Panhandle Water Planning Area
Surface WaterCanadian and Red River BasinsThree Major Reservoirs
Panhandle Water Planning Area
Source Availability Ogallala Availability (2004 GAM)
40/50/80 Approach 2004 Northern GAM Model
Calculated for each 1 sq mi grid Rita Blanca
Included as part of Ogallala Dockum, Seymour, Blaine
1.25% decline in storage Reservoirs
Safe Yields
Panhandle Water Planning Area
Ogallala Volume(2004 GAM)
Panhandle Water Planning Area
Total Supply by Source
Panhandle Water Planning Area
Supply to Water Users Consider most limiting factor
Geographical constraints Infrastructure Contracts
Consider source Location Availability Quality
Panhandle Water Planning Area
Supply to Users in PWPA
Panhandle Water Planning Area
Comparison of Supply to Demand
27 WUGs with Identified Shortages 454,726 Acre-Feet in 2010 487,957 Acre-Feet in 2030 419,780 Acre-Feet in 2030
99% attributed to Irrigation in 2010, 91% in 2060 Limitations of availability in
irrigation areas
7% 2%
91%
Projected Water Shortages in 2060
MUN
MFG
IRR
STK
SEP
Panhandle Water Planning Area
Water Management Strategies Shortages identified for :
Municipal Manufacturing Steam Electric Power Irrigation
Other needs Water quality Reliability
Panhandle Water Planning Area
Conservation Municipal Conservation
Cities County Other
Irrigation Conservation All counties Counties with needs discussed in
detail in Chapter 4
Panhandle Water Planning Area
Develop New GroundwaterWholesale Water Providers
Amarillo Borger Cactus CRMWA Greenbelt
County Other Moore Potter Randall Hall
Cities: Canyon Dumas Gruver Lefors Memphis Spearman Sunray
Other SEP, Moore Co.
Panhandle Water Planning Area
Purchase from Provider Manufacturing, Moore Co. Manufacturing, Potter Co. Memphis Borger
Panhandle Water Planning Area
Alternate Strategies Palo Duro Transmission System Precipitation Enhancement
Counties with no current sponsor Purchase from Provider
Randall County-Other
Panhandle Water Planning Area
Other Studies Ogallala GAM Update Surface water study – Lake
Meredith
Panhandle Water Planning Area
Update to Northern Ogallala GAM Updated red bed data (saturated
thickness) Updated historical pumpage Good calibration
Improved over 2004 model Changes in availability
Related to red bed data Some associated with aquifer
designation (Dockum vs Ogallala)
Panhandle Water Planning Area
Updated GAMDifferences in Available Supply
2004 GAM and Updated GAM
Panhandle Water Planning Area
Impacts to Needs Continue to have irrigation
shortages Dallam, Hartley, Sherman, Moore
and Hutchinson New shortages or sooner
Panhandle Sunray (sooner) Perryton Texline Wheeler
Panhandle Water Planning Area
Lake Meredith Study
Panhandle Water Planning Area
Lake Meredith Study
94.7%
96.9%97.5%
98.3% 98.3% 98.4%99.0%
92%
93%
94%
95%
96%
97%
98%
99%
100%
1940
-194
9
1950
-195
9
1960
-196
9
1970
-197
9
1980
-198
9
1990
-199
9
1997
-200
6
Period of Record
Hyd
rolo
gic
Loss
Panhandle Water Planning Area
Summary of Findings Not a Factor
Annual precipitation Potential evaporation (temperature) Changes in irrigation practices
Potential Factors Rainfall intensity Increase in shrubland/decrease in
pasture lands Decrease in groundwater levels
Panhandle Water Planning Area
PWPA Water Supply Summary2010
20601.2 million ac-ft
1.4 million ac-ft
Panhandle Water Planning Area
Public Comment