Lake Whitney Comprehensive Water Quality Assessment, Phase 1B- Physical and Biological Assessment (USDOE)

Doyle, Robert D ; Byars, Bruce W

关键词: ALGAE;    AQUIFERS;    BATHYMETRY;    DRINKING WATER;    ENVIRONMENTAL QUALITY;    HYDRODYNAMICS;    LIMNOLOGY;    PHOTOSYNTHESIS;    PLANKTON;    RURAL AREAS;    SALINITY;    SURFACE WATERS;    TOXICITY;    TRANSPORT;    URBAN AREAS;    US EPA;    WATER QUALITY;    WATER RESOURCES;    WATER SUPPLY;    WATERSHEDS Lake Whitney;    Salinity;    Bacterial;    Organic Contaminants;    Phytoplankton;    Educational Outreach;    STEM curricula;    Water Quality;    Drinking Water Source;    Learning Lab;    River and Reservoir Systems;    Nutrient Analysis;    Bathymetric;    Water Management;    Ambient Toxicity;    GIS Modeling;   

DOI  :  10.2172/968980
RP-ID  :  DOE/ER/64253-1 Final Report
PID  :  OSTI ID: 968980
Others  :  Other: 032-75BL
Others  :  TRN: US201113%%331

美国|英语

来源: SciTech Connect

【 摘 要 】

Baylor University Center for Reservoir and Aquatic Systems Research (CRASR) has conducted a phased, comprehensive evaluation of Lake Whitney to determine its suitability for use as a regional water supply reservoir. The area along the Interstate 35 corridor between Dallas / Fort Worth Metroplex and the Waco / Temple Centroplex represents one of the fastest growth areas in the State of Texas and reliable water supplies are critical to sustainable growth. Lake Whitney is situated midway between these two metropolitan areas. Currently, the City of Whitney as well as all of Bosque and Hill counties obtain their potable water from the Trinity Sands aquifer. Additionally, parts of the adjoining McLennan and Burleson counties utilize the Trinity sands aquifer system as a supplement to their surface water supplies. Population growth coupled with increasing demands on this aquifer system in both the Metroplex and Centroplex have resulted in a rapid depletion of groundwater in these rural areas. The Lake Whitney reservoir represents both a potentially local and regional solution for an area experiencing high levels of growth. Because of the large scope of this project as well as the local, regional and national implications, we have designed a multifaceted approach that will lead to the solution of numerous issues related to the feasibility of using Lake Whitney as a water resource to the region. Phase IA (USEPA, QAPP Study Elements 1-4) of this research focused on the physical limnology of the reservoir (bathymetry and fine scale salinity determination) and develops hydrodynamic watershed and reservoir models to evaluate how salinity would be expected to change with varying hydrologic and climatic factors. To this end, we implemented a basic water quality modeling program in collaboration with the Texas Parks and Wildlife Department and the Texas Commission on Environmental Quality to add to the developing long-term database on Lake Whitney. Finally, we conducted an initial assessment of knowledge of watershed and water quality related issues by local residents and stakeholders of Lake Whitney and design an intervention educational program to address any deficiencies discovered. Phase IA was funded primarily from EPA Cooperative Agreement X7-9769 8901-0. Phase IC (USEPA, QAPP Study Element 5) of this research focused on the ambient toxicity of the reservoir with respect to periodic blooms of golden algae. Phase IC was funded primarily from Cooperative Agreement EM-96638001. Phase 1B (USDOE, Study Elements 6-11) complemented work being done via EPA funding on study elements 1-5 and added five new study elements: 6) Salinity Transport in the Brazos Watershed to Lake Whitney; 7) Bacterial Assessment; 8) Organic Contaminant Analysis on Lake Whitney; 9) Plankton Photosynthesis; 10) Lake Whitney Resident Knowledge Assessment; and 11) Engineering Scoping Perspective: Recommendations for Use.