The Llano Estacado Underground Water Conservation District is currently receiving public comments on the proposed Desired Future Conditions (DFCs) for the area aquifers recently adopted by Groundwater Management Area 2 under §36.108, Texas Water Code. Groundwater Management Area 2 includes the groundwater conservation district as follows: Garza County UWCD, High Plains UWCD, Llano Estacado UWCD, Mesa UWCD, Permian Basin UWCD, Sandy Land UWCD and South Plains UWCD. The DFCs and supporting materials for the area aquifers are available at the District’s office at 200 S E Ave C, Seminole, TX 79360 or on the District’s website at www.llanoestacadouwcd.org. The District will hold a public hearing on the Desired Future Conditions on July 14, 2016 at 10:00 a.m., at the District office, 200 S E Ave C., Seminole, TX 79360. Public comments will be accepted by the District until 5:00 p.m., Monday July 25, 2016 at the District office, by mail or email, or at the public hearing. For more information, please contact the District at lewcdlb@gmail.com or 432-758- 1127.


Groundwater Management Area #2 consists of all or part of the following counties in South Plains of Texas:
Deaf Smith | Parmer | Castro | Swisher | Briscoe | Bailey | Lamb | Hale | Floyd | Cochran | Hockley | Lubbock |Crosby | Yoakum | Terry | Lynn | Garza | Gaines | Dawson | Border | Andrews | Martin | Howard


CLICK HERE to view the Preliminary Explanatory Report


Summary of Proposed Desired Future Conditions for SPUWCD—April 21, 2016

“GMA 2 proposes a desired future condition (DFC) for the Ogallala and Edwards-Trinity (High Plains) aquifers where the total average drawdown is approximately 23- 27 ft by 2070. The pumping scenario supporting this condition is found in Technical Memorandum 16-01 (Hutchison).”


Letter to the Districts

April 21, 2016

RE: Groundwater Management Area 2 – Proposed DFC

At the April 19, 2016 meeting of Groundwater Management Area 2, the following proposed desired future conditions were approved:

-The proposed desired future condition for the Ogallala and Edwards-Trinity (High Plains) aquifers is average drawdown of between 23 and 27 feet for all of GMA 2. The drawdown is calculated from the end of 2012 conditions to the year 2070. The drawdown is expressed as a range due to the link between future pumping and future rainfall. As documented in GMA 2 Technical Memorandum 15-01 and GMA 2 Technical Memorandum 16-01, historic pumping is higher in dry years than in wet years. Since most of the water use in GMA 2 from the Ogallala Aquifer is for irrigation, producers pump more groundwater in dry years than in normal or wet years. The simulations assumed that initial pumping rates in the future would be between 100 percent and 150 percent of 2012 pumping rates. Essentially, in average or wet years, initial annual pumping would be approximately the same as 2012 pumping rates. In dry years, initial annual pumping rates could be as high as 150 percent of 2012 pumping rates based on the variation of pumping rates in the recent past.

-The proposed desired future condition for the Dockum Aquifer is average drawdown of 27 feet for all of GMA 2. The drawdown is calculated from the end of 2012 conditions to the year 2070, and is based on Scenario 16 as documented in GMA 2 Technical Memorandum 16-01.

These desired future conditions were proposed in accordance with Sections 36.108 (d) – (d-2) of the Texas Water Code. The designated representatives of the Groundwater Conservation Districts in the management area voted to propose the Desired Future Conditions for adoption at a joint planning meeting properly noticed and held in Lamesa, Texas on April 19, 2016, following consideration at several previous meetings of the nine factors set forth in Section 36.108 (d) TWC, hydrological studies, Groundwater Availability Models and GAM Runs, Technical Memoranda, public input and other information.

As of the date of this letter, a 90-day public comment period commences, during which each district must hold a public hearing. At the completion of the public comment period, each district must submit a summary report of all relevant comments received, and any suggested changes to the desired future conditions. These summary reports will be discussed at the next GMA 2 meeting scheduled for the fall.


Jason Coleman, P.E