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Initially Prepared Plan Panhandle Water Planning Area Amarillo April 28, 2010 Panhandle Water Planning Area

CONSULTANTS: Freese and Nichols, Inc. Texas AgriLife Intera, inc.


Panhandle Water Planning Area


State Water Plan

Panhandle Water Planning Area


Panhandle Water Planning Group 

22 members representing:

Panhandle Water Planning Area

• • • • • •

Municipalities River Authorities Counties Public Environmental Electrical Generating Utilities

• • • • • •

Water Utilities Water Districts Industrial Small Business Agriculture Higher Education


2011 Initially Prepared Plan     

Panhandle Water Planning Area

Update of 2006 Plan 8 Chapters Supporting Appendices Available for Review Final Plan – September 1, 2010


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 ď Ž ď Ž

Decrease over time Reductions in irrigation 1,800,000 1,600,000

Panhandle Water Planning Area

Water Demands (ac-ft/yr)

1,400,000 1,200,000 1,000,000 800,000 600,000 400,000 200,000 0 2010

2020

2030

2040

2050

2060

Irrigation Demands

Livestock Demands

Manufacturing Demands

Mining Demands

Municipal Demands

Steam Electric Demands


PWPA Demands - Largest in heavily irrigated counties

Panhandle Water Planning Area


97% Supply in PWPA - Groundwater Major Aquifers

ď Ž

Maj

Panhandle Water Planning Area

Minor Aquifers


Surface Water Canadian and Red River Basins Three Major Reservoirs

Panhandle Water Planning Area


Source Availability 

Ogallala Availability (2004 GAM) 40/50/80 Approach  2004 Northern GAM Model 

 Calculated

Rita Blanca 

Panhandle Water Planning Area

Included as part of Ogallala

Dockum, Seymour, Blaine 

for each 1 sq mi grid

1.25% decline in storage

Reservoirs 

Safe Yields


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 Projected Water Shortages in 2060 7%

2% MUN MFG

91%

454,726 Acre-Feet in 2010  487,957 Acre-Feet in 2030  419,780 Acre-Feet in 2030 

IRR STK SEP

Panhandle Water Planning Area

27 WUGs with Identified Shortages

99% attributed to Irrigation in 2010, 91% in 2060 

Limitations of availability in irrigation areas


Water Management Strategies 

Shortages identified for : Municipal  Manufacturing  Steam Electric Power  Irrigation 

Panhandle Water Planning Area

Other needs Water quality  Reliability 


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 Groundwater Wholesale Water Providers Amarillo  Borger  Cactus  CRMWA  Greenbelt 

Panhandle Water Planning Area

County Other Moore  Potter  Randall  Hall 

Cities: Canyon  Dumas  Gruver  Lefors  Memphis  Spearman  Sunray 

Other 

SEP, Moore Co.


Purchase from Provider    

Panhandle Water Planning Area

Manufacturing, Moore Co. Manufacturing, Potter Co. Memphis Borger


Alternate Strategies  

Palo Duro Transmission System Precipitation Enhancement 

Purchase from Provider 

Panhandle Water Planning Area

Counties with no current sponsor Randall County-Other


Other Studies  

Panhandle Water Planning Area

Ogallala GAM Update Surface water study – Lake Meredith


Update to Northern Ogallala GAM 

 

Updated red bed data (saturated thickness) Updated historical pumpage Good calibration 

Panhandle Water Planning Area

Improved over 2004 model

Changes in availability Related to red bed data  Some associated with aquifer designation (Dockum vs Ogallala) 


Updated GAM

Differences in Available Supply 2004 GAM and Updated GAM Panhandle Water Planning Area


Impacts to Needs 

Continue to have irrigation shortages 

New shortages or sooner Panhandle  Sunray (sooner)  Perryton  Texline  Wheeler 

Panhandle Water Planning Area

Dallam, Hartley, Sherman, Moore and Hutchinson


Lake Meredith Study

Panhandle Water Planning Area


Lake Meredith Study 100% 98.3%

1980-1989

1990-1999

Hydrologic Loss

98%

98.3%

98.4%

1970-1979

99.0%

99% 97.5% 96.9%

97% 96% 95%

94.7%

94% 93%

Period of Record

1997-2006

1960-1969

1950-1959

92% 1940-1949

Panhandle Water Planning Area


Summary of Findings 

Not a Factor Annual precipitation  Potential evaporation (temperature)  Changes in irrigation practices 

Panhandle Water Planning Area

Potential Factors Rainfall intensity  Increase in shrubland/decrease in pasture lands  Decrease in groundwater levels 


PWPA Water Supply Summary 2010

2060

1.2 million ac-ft Panhandle Water Planning Area

1.4 million ac-ft


Public Comment Panhandle Water Planning Area

http://panhandlewater.org/pwpg_notices/2010/Freese%20and%20Nichols%20Presentation%204-28-10%20IPP%20  

http://panhandlewater.org/pwpg_notices/2010/Freese%20and%20Nichols%20Presentation%204-28-10%20IPP%20Hearing.pdf

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