Socorro/Sierra Socorro/Sierra Regional Water Plan Regional Water Plan Presentation to Presentation to The Interstate Stream The Interstate Stream Commission Commission Presented by Presented by Socorro- -Sierra Water Planning Sierra Water Planning Socorro Steering Committee and Steering Committee and Daniel B. Stephens & Associates, Daniel B. Stephens & Associates, Inc. Inc. January 2004 January 2004
Regional Water Planning Area Regional Water Planning Area Rio Puerco Rio Salado Bernardo San Acacia Magdalena Rio # S Socorro Grande S # Bosque del Apache San Marcial . , - I-25 Elephant Butte Reservoir Truth or # S Consequences Caballo Reservoir N 0 10 20 30 Miles
SSPA Surface Water Study SSPA Surface Water Study � Studied Rio Grande from Cochiti Studied Rio Grande from Cochiti � Reservoir to Elephant Butte (under Reservoir to Elephant Butte (under contract by the ISC and U.S. Army contract by the ISC and U.S. Army Corps of Engineers) Corps of Engineers) � Conducted statistical analysis of Conducted statistical analysis of � streamflow streamflow � Evaluated Rio Grande Compact Evaluated Rio Grande Compact � obligations obligations � Predicted a net mean modeled deficit of Predicted a net mean modeled deficit of � 77,900 acre- -feet per year feet per year 77,900 acre
Population Projected to 2040 Population Projected to 2040 35000 30,481 Projected Growth Historical Trend 27,713 30000 24,649 28,741 25000 21,373 26,572 Population 23,968 18,243 20000 17,147 21,035 15,582 15,451 13,813 15000 12566 18,124 12,273 11,179 10168 10,143 15,447 9763 14,773 14,134 8454 10000 13,087 7189 6409 11,932 11,073 10,141 5000 0 1960 1970 1980 1990 2000 2010 2020 2030 2040 Year Sierra Co., High Series Sierra Co., Low Series Socorro Co., High Series Socorro Co., Low Series
2000 Water Use 2000 Water Use With Elephant Butte and Caballo Reservoir Evaporation Total Consumptive Use: 467,759 ac-ft Domestic/Public Supply Industrial Commercial 0.6% Irrigated <0.1% 0.3% Agriculture 16.6% Riparian Evapotranspiration Livestock 33.7% 0.4% Mining <0.1% Reservoir Evaporation 48.5%
2000 Water Use 2000 Water Use Without Elephant Butte and Caballo Reservoir Evaporation Total Consumptive Use: 248,434 ac-ft Domestic/Public Commercial Supply 0.5% 1.0% Industrial <0.1% Irrigated Agriculture 31.2% Livestock 0.7% Mining <0.1% Riparian Reservoir Evapotranspiration Evaporation 63.4% 3.0%
Rio Grande Rio Grande Valencia-Socorro 245 245 County Line Basin Basin 6.5 Effective precipitation 25.6 Rio Puerco 44.8 RPET INFLOW INFLOW INFLOW INFLOW Average Average 16.9 6.4 Ungaged tributaries IRR Annual Water (east side) Annual Water 10.4 Rio Salado 7.8 Rio Grande @ Rio Grande @ 224.4 Budget in 224.4 Budget in San Acacia San Acacia OWCU Mean Mean 15.5 Effective precipitation Socorro- - Socorro Middle Middle 38.5 IRR Rio Rio RPET 113 Sierra Sierra Grande Grande 3.1 below PS + DO San Acacia supply supply 6.3 Planning Planning CO + MI + IN 4.6 Ungaged tributaries 16.5 Groundwater inflow (east side) Region Region Ungaged tributaries 17.1 RE (west side) 164 DEPLETIONS DEPLETIONS DEPLETIONS DEPLETIONS Elephant 3.2 Butte CO Commercial LS MI Mining PS Public water supply 27.9 Rio Grande @ OWCU DO Self-supplied domestic Elephant Butte RE Reservoir evaporation RPET Riparian evapotranspiration Average Modeled IRR Irrigated agriculture Obligation Deficit LS Livestock -77.9 OWCU Open water consumptive use IN Industrial
Water Plan Alternatives Water Plan Alternatives � Improve irrigation conveyance Improve irrigation conveyance � efficiency (line canals) efficiency (line canals) � Improve on Improve on- -farm efficiency (drip farm efficiency (drip � irrigation, laser- - level) level) irrigation, laser � Control vegetation along canals and Control vegetation along canals and � drains drains � Control non Control non- -reservoir surface water reservoir surface water � evaporation evaporation
Water Plan Alternatives Water Plan Alternatives � Require sustainable water supply for Require sustainable water supply for � new developments new developments � Encourage retention of water rights Encourage retention of water rights � within the region within the region � Remove exotic vegetation Remove exotic vegetation � � Manage watersheds to improve yield Manage watersheds to improve yield �
Water Plan Alternatives Water Plan Alternatives � Develop economic potential for non Develop economic potential for non- - � native species native species � Make water rights a non Make water rights a non- -condemnable condemnable � resource resource � Coordinate reservoir releases with Coordinate reservoir releases with � demand demand � Identify and protect areas vulnerable to Identify and protect areas vulnerable to � contamination contamination
Water Plan Alternatives Water Plan Alternatives � Implement water conservation programs Implement water conservation programs � � Ensure that the region is represented in Ensure that the region is represented in � water management decisions that affect water management decisions that affect Rio Grande reservoirs (i.e., Elephant Rio Grande reservoirs (i.e., Elephant Butte) Butte)
Regional Support for Plan Regional Support for Plan � Resolutions in support of the plan Resolutions in support of the plan � passed by: passed by: – City of Elephant Butte City of Elephant Butte – – City of Socorro City of Socorro – – City of Truth or Consequences City of Truth or Consequences – – La Joya Acequia La Joya Acequia – – Socorro Soil and Water Conservation Socorro Soil and Water Conservation – District District – Village of Williamsburg Village of Williamsburg – – Socorro County Socorro County –
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