drought of 2008 kendall county, texas update: 12 january 2009 milan j. michalec director, cow creek...
TRANSCRIPT
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Drought Of 2008 Kendall County, Texas
Update: 12 January 2009
Milan J. Michalec
Director, Cow Creek Groundwater Conservation District
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Water Supplies
Boerne City LakeLevel: Full 42’ - Currently Level 36’,1” (12 Jan 09) Record Low: Approximately 30’ (1989)
Canyon ReservoirLevel: Full 909’– Current Level 897.82’ (12 Jan 09)Record Low: Current Level (Previous Record 899.84’,1984)
Cow Creek Groundwater Conservation District Monitor Wells (31): Overall Trend Downward
RainfallTotal In 2008: 14.74”Record Low: 10.29” (1954)
Average: 33.74” (1893-2008)
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Boerne
• “Most of the Boerne homes of the 1850’s got their water from springs or the crystal-clear Cibolo Creek. A few homes had shallow-water wells that were between 30 to 35 feet in depth.”– Garland Perry, Historic Images of Boerne
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City Of BoerneTerraServer-USA Web Site (2005)
Frederick Creek River Road Dam Herff Spring
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Frederick CreekUpstream At South School Street
Feb To Nov
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Frederick CreekDownstream At South School Street
Feb To Nov
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Cibolo Creek River Road Dam
Feb To Nov
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Herff SpringCity Park Road
Aug To Dec
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City Of BoerneMicrosoft Virtual Earth (2008)
Frederick Creek River Road Dam Herff Spring Champion High
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Champion High School Browns Creek Downstream At Hwy 46
Aug 08 To Jan 09
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Facts And Observations
• Watersheds Of Hill Country– Baseflow Maintained By Discharge Of Springs
• Cibolo Creek Watershed– Numerous Spring Fed Creeks
• Discharge From Springs– Indicator Of An Aquifer System In Balance
• Discharge Evidence Of Adequate Recharge
– Indicator Of Stress On An Aquifer System• Discharge From Wells Is A Multiplier
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Way Ahead
• Increase Public Awareness– Encourage Aggressive Conservation Of
Ground And Surface Water Supplies– Trinity Aquifer Is Not Just A Groundwater
Resource – It Is A Surface Water Source• In Time Of Drought, Both Are Affected
– Advocate For Improved Water Resources Management Strategy
• Reduce Demand, Increase Supply, Change The Culture
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Water Conservation Strategy • Recommend Year-Round Voluntary Conservation Measures
– Minimize Water Use For Non-Essential Purposes– Typical Landscape Can Account For 60% Of Peak Usage
• Follow Rules Established By Water Supplier– Reflected In “Stages” – Enforced By Rules, Ordinance or Guideline – Can Prescribe Frequency. Example: Once A Week Watering – Can Prescribe Time Of Day. Example: Prohibit Landscape Watering By
Hose End Sprinkler During 10:00 AM And 8:00 PM Year Round– Can Prescribe Method: Example: Sprinkler/Bucket/Hand-Held Hose– Can Restrict Or Prohibit Use. Example: Washing Cars and Boats
• Reduce Water Waste– Waste Is Always Prohibited– Water Running Into Street, Gutter, Or Parking Lot Is Waste– Violation Of Rules During Time Of Restricted Use Is Waste
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Current Drought Stages
• Cow Creek Groundwater District• Applicable To All Groundwater Users and Suppliers • www.ccgcd.org
• City of Boerne• Applicable To City Residents • www.ci.boerne.tx.us
• Guadalupe-Blanco River Authority • Applicable to Cordillera Ranch • www.gbra.org
• Public Water Supplier• Applicable to Aqua Texas • Newsletter Or Flyer In Bill
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Closing Thought
• Reduce Demand, Increase Supply, Change The Culture