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Draft Projections – Population And Municipal Demands Panhandle Water Planning Area


State Population Projections 

County projections – State Data Center demographic trends  50% net migration rate (2000-2010), 

 

Panhandle Water Planning Area

TWDB did not decline populations WUG level Cities > 500 people  WSCs > 280 acre-feet/year  Census Designated Places  County-Other 


Region A Population

Panhandle Water Planning Area


Population Distribution

Panhandle Water Planning Area


Population Growth

Panhandle Water Planning Area


Changes to County Populations 



Cannot increase regional population Criteria for county population changes: Census undercount  Different net migration rate  Different birth/survival rates 

Panhandle Water Planning Area


Review and Changes to WUGs 

 

Lefors and Skellytown are no longer WUGs (pop <500) Addition of WUGs Criteria for WUG population changes: Census undercount  Growth rate > growth between 20002010  Expansion of city / utility CCN boundary  Growth limits (build out) 

Panhandle Water Planning Area


DRAFT MUNICIPAL DEMANDS

Panhandle Water Planning Area


Draft Municipal Water Projections 

Methodology Water use (GPCD) x Projected population  Year 2011 GPCD  Include Plumbing Codes reductions 



Panhandle Water Planning Area

GPCD Net municipal water use (less industrial and wholesale sales)  Minimum â&#x20AC;&#x201C; 60 GPCD 


Region F Municipal Demands

Panhandle Water Planning Area


Municipal Demand Distribution

Panhandle Water Planning Area


Municipal Demand Growth

Panhandle Water Planning Area


Changes to Municipal Demands  

Must use 2011 as base year Criteria for municipal demand changes: Errors in 2011 water use reporting  Evidence that 2011 had temporary constraints  Evidence of changing demographics that warrants higher GPCD  Evidence of different PC replacement schedule 

Panhandle Water Planning Area


Review and Changes to WUGs 

Most GPCDs for 2016 plan are higher than 2011 plan 



Panhandle Water Planning Area

Some significant differences in historical GPCD 



2011 Plan used average use, not dry year

High GPCD (need review)

2011 â&#x20AC;&#x201C; Highest water use for most cities (60%)


Next Steps 

Survey to Municipal WUGs 





Panhandle Water Planning Area





Solicit input by May 15

Review water use reports – select WUGs Coordinate with TWDB – errors, data needs RWPG approval of requested changes (July or early August) Submit changes to TWDB by August 16


Panhandle Water Planning Area


Methodology â&#x20AC;&#x201C; Water Management Strategies PWPG Meeting August 6, 2012

Panhandle Water Planning Area


Feasible Strategies From TAC 357.5

Panhandle Water Planning Area

â&#x20AC;&#x153;Before a regional water planning group begins the process of identifying potentially feasible water management strategies, it shall document the process by which it will list all possible water management strategies and identify the water management strategies that are potentially feasible for meeting a need in the region.â&#x20AC;?


Identification Process  



Panhandle Water Planning Area



Identify entities with needs Review recommended strategies in 2011 plan Determine if new or changed strategies are needed Contact entity for input 



Contact PWPG representative for county-wide WUGs

Verify recommendations


Feasible Strategies 

Considerations 





Panhandle Water Planning Area





A strategy must use proven technology A strategy should be appropriate for regional planning A strategy should have an identifiable sponsor Must consider end use. Includes water quality, economics, geographic constraints, etc. Must meet existing regulations


Feasible Conservation Strategies 

Water conservation 

 

Panhandle Water Planning Area 

Review for applicability and develop appropriate strategies for all municipal and irrigation WUGs Applicable municipal WUGs > 140 gpcd Identify appropriate conservation strategies for other types of water use; apply to WUGs with a need

Drought management  

Emergency measures Generally, not recommended for longterm


Feasible Strategies 

Expanded use of existing supplies or new supplies 

New groundwater wells 



Panhandle Water Planning Area





Consider groundwater availability

Conjunctive use of groundwater & surface water New infrastructure

Voluntary Transfer  

Contracts Sales, leases and options


Feasible Strategies  

Desalination of brackish water Wastewater reuse 



Panhandle Water Planning Area



Identify generators of wastewater and potential recipients for reuse Identify opportunity for expansion

Yield enhancement   

Brush management Precipitation enhancement Recharge enhancement


Evaluations   



Panhandle Water Planning Area

 



Quantity, cost and reliability Environmental factors Impacts on water resources and other WMS Impacts on agriculture/ rural Impacts on natural resources Impacts on key water quality parameters Other relevant considerations


Alternative Strategies  



Panhandle Water Planning Area

Selected with entity input Evaluated using same considerations for selected strategies Included in 2016 Plan


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