How the Drought Has Affected Business - Scott Hall, Lower Neches Valley Authority

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How the Drought Has Affected Business presented by Scott Hall, Lower Neches Valley Authority at the TWCA annual conference http://www.twca.org

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  • What does LNVA do…
  • How the Drought Has Affected Business - Scott Hall, Lower Neches Valley Authority

    1. 1. MUNICIPAL • INDUSTRIAL • AGRICULTURAL WATER LOWER NECHES VALLEY AUTHORITY
    2. 2. Created by the State Legislature in1933 as a Conservation andReclamation DistrictJurisdictional Area  Tyler, Hardin, Jefferson and portions of Liberty and Chambers CountiesServices Provided  Water Supply from Neches & Trinity Rivers  Wastewater Treatment for industry  Potable Water to Bolivar Peninsula  Environmental Water Quality TestingPartnership with USACE  Sam Rayburn Reservoir  Lake B.A. Steinhagen  Neches River Saltwater Barrier
    3. 3. Our neighborhood
    4. 4. 300 Village Creek near Kountze, TX Drainage Area 860 square miles or 8.8% of the Neches River Basin Gage Record Established June 1, 1924250200 New Record Low Flow 10 cfs – October 24, 2011150 Historic Low Flow 16 cfs - October 1-2, 1957100 50 0 1-Jan-11 1-Feb-11 1-Mar-11 1-Apr-11 1-May-11 1-Jun-11 1-Jul-11 1-Aug-11 1-Sep-11 1-Oct-11 1-Nov-11 1-Dec-11 1-Jan-1 Historical Minimum Flow 2011 Observed Flow
    5. 5. Sam Rayburn Reservoir Reservoir Pool Total StorageElev. 173 Acre-feetElev. 164.4 Flood Control 3,997,600 Conservation 2,898,500 Inactive Pool 1,452,000 Elev. 149 Inactive Pool At Elevation 150.79 feet on 11/17/11 Total Storage 1,584,800 acre-feet Conservation 132,800 acre-feet Elev. 105 Storage 9% of capacity Conservation Pool for Water Supply and Hydroelectric Power Generation
    6. 6. Drought Contingency PlanOriginal DCP in response to 1996 droughtUntested in Severe Drought 30% reduction then no storageRevised DCP Triggers at 1year, 6 months and 3 months Surcharge that increase as drought increases Trigger to curtail interruptible supply
    7. 7. Conservation Efforts Saltwater Barrier operated in a salinity controlmode since Oct 2010 Coordinated Reservoir Releases with USACE Required customers schedule water deliveryMunicipal efforts – 20% reduction by replacingleaking distribution system pipesIndustrial customers actively engagedAll irrigation is metered – 27% reduction
    8. 8. Alternate Water SupplyExtension of active pool at Rayburn Requires extension of erosion protection and modification to the hydropower plantRequest to Sabine River Authority for anadditional supply from Toledo Bend SRA Board to consider later this month Requires IBT permit Goal to complete within 3 years
    9. 9. SummaryTwo years of drought – call to actionIncreased conservation effortsIncreased communication with stakeholdersModification to existing projects/operationsIdentified means to diversify water supply
    10. 10. Provide for the present and long Protect water quality in the Nechesterm freshwater needs of River and coastal basin,municipal, agricultural andindustrial customers, LNVA Water for Today Water for Tomorrow www.lnva.org Enhance the economicInsure affordability of the water development in the Authority’ssupply, jurisdiction.

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