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6 Pages

upchurch

Course: GISWR 28, Fall 2009
School: University of Texas
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Word Count: 671

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monitoring Groundwater on the Fennessey Ranch, TX Lucia Upchurch GIS in Water Resources November 28, 2006 Fennessey Ranch Part of the newly designated MANERR 3,324 acre Ranch 10 artesian wells on property 4+ TWDB groundwater wells in or nearby Goals Extract precipitation (in progress)/surface flow data Examine preliminary data from Fennessey Ranch Examine potential recharge and discharge in this aquifer...

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monitoring Groundwater on the Fennessey Ranch, TX Lucia Upchurch GIS in Water Resources November 28, 2006 Fennessey Ranch Part of the newly designated MANERR 3,324 acre Ranch 10 artesian wells on property 4+ TWDB groundwater wells in or nearby Goals Extract precipitation (in progress)/surface flow data Examine preliminary data from Fennessey Ranch Examine potential recharge and discharge in this aquifer Correlate surface and groundwater flow (not completed) Data Sources DEM: http://seamless.usgs.gov NHDplus: Rae Mooney, Tyler Jantzen MANERR base maps: Sally Morehead Land Cover: National Landcover Dataset 1992; http://seamless.usgs.gov/website/seamless/viewer.php Texas Water Development Board database: http://www.twdb.state.tx.us/mapping/gisdata.asp Fennessey Ranch shapefile: created with help of Tyler McEwan Texas General Land Office: hydrography; http://www.glo.state.tx.us/gisdata/gisdata.html Fennessey Ranch Wells: Chip Breier Surface Flow: Watershed delineation using Terrain Preprocessing DEM Catchment delineation Flowline delineation Close-up of Fennessey 1 2 F e n n e s s e y R an c h Mission River F e n n e s s e y Ran c h Mission River 3 4 F e n n e s s e y Ran c h Fe n n e s s e y Ra nc h Mission River Mission River Surface and Groundwater resources: Hydrologic data Legend ^ ^ USGSGages manerrprecipgages Events TWDB well locations MANERR Catchment <all other values> welltype.description Drain Oil or Gas % & Spring Withdrawal of Water % & % & % & % & % & blank DrainagePoint DrainageLine Catchment % & % & F e n n e s s e y Ran c h % & % & % & % & Mission River Fennessey Ranch Wells MANERR_Boundary Fennessey_Ranch % & 0 0.5 1 2 Kilometers Surface Flow: USGS stream gage Mission River at Refugio (log transformed discharge) Drainage Area= 690 sq mi, ave flow 128 cfs 120 100 80 60 40 20 0 0.1 1 10 100 1000 10000 ^ Cumulative Frequency % Discharge (cfs) Mission River at Refugio % & % & % & % & % & % & % & Fe n n e s s e y Ran c h % & % & % & % & Mission River % & Land Cover (primarily pasture, herbaceous wetlands, and shrubland) Soil moisture capacity (in progress) Precipitation/weather downloader (in progress) Legend Factors affecting surface/groundwater interaction: land cover 1992 land cover classification.CLASSIFICA Bare Rock/Sand/Clay Commercial/Industrial/Transporta Deciduous Forest Emergent Herbaceous Wetlands Evergreen Forest Grasslands/Herbaceous High Intensity Residential Low Intensity Residential Mixed Forest F e n n e s s e y Ran c h Open Water Orchards/Vineyards/Other Pasture/Hay Quarries/Strip Mines/Gravel Pits Row Crops Shrubland Small Grains Transitional Urban/Recreational Woody Grasses Wetlands Fe n ne s s e y R an c h Mission River Mission River Preliminary Fennessey Ranch data courtesy of Chip Breier Well location, as well as nutrients, discharge rate, salinity, and radium isotopic data Well Bubba's Marsh East Kaizer West Kaizer Fly Fishing Pond McGill Pavillion Cattle Corral St. John's Fisher's Long Road Drill Pad China The Last One/Highwire W39 W36 W19 W17 W40 Internal ID W16 W15 W18 W37 W38 Date 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 4/28/2005 Lat 27.83594 28.2338 28.23824 28.22613 28.24212 28.24487 28.24327 28.26134 28.2331 28.22059 28.21146 28.20897 28.21899 Long Discharge Rate L/min 97.25283 97.2616 97.26394 97.25443 97.25245 4.551724 1.20257 1.1 97.26038 97.27502 1 0.8 6.49 0.80 3.13 0.32 0.52 0.37 105.45 99.58 92.35 0.06 0.22 1505 0.01 423 73 173 3.15 6.25 4.52 1.04 0.2642 0.8 97.28163 1.343284 0.3549 2.2 97.26537 16.39535 4.33166 0.8 97.26176 80.35714 21.2304 1.2 97.24953 5.501976 1.45363 1.1 3.01 0.46 111.71 0.05 32 144 Gal/min 3.9 8.45443 2.3 38.0449 1.2 Sal Ammonium uM 6.90 12.24 6.83 6.46 12.21 Ortho-phosphate uM 0.19 0.17 0.25 0.34 0.44 Silicate NO3 + NO2 Ra226 uM 101.19 100.13 106.17 109.68 105.31 uM 0.02 0.00 0.36 0.05 0.00 dpm/m 1157 680 805 Ra228 dpm/m 1293 1124 587 Ra224 dpm/m 175.0 36.2 52.6 Ra223 Well Type dpm/m 5.91 3.16 5.38 Artesian flowing Pump Artesian flowing Artesian flowing Artesian flowing Pump Artesian flowing Pump Artesian flowing Artesian flowing Artesian flowing Artesian flowing Artesian flowing 97.05315 14.56311 3.84758 3.6 97.25767 3.956044 1.04519 2.2 Radionuclides- useful for Groundwater flow/Groundwater Discharge/Recharge Nuclide Ra-226 Ra-228 Ra-224 Ra-223 Half-life 1600 yrs 5.75 yrs 3.64 days 11.7 days Radium in Fennessey Wells Higher salinity should increase all Ra Big bubbles= more saline Ra-228/Ra-224 should be in equilibrium (1:1) Ra-228/Ra-224 show similar patterns Radium activity in Fennessey Ranch wells as a function of Salinity 10000 1000 Ra-226 Ra-228 dpm/m3 100 Ra-224 Ra-223 10 1 0 1 2 Well ID 3 4 5 6 Radium, cont'd Showing same trend with salinity Not completely linear (removal process at highest point?) Can be useful in estimating groundwater discharge and recharge Average recharge rate for this aquifer is 0.01-3.0 mm/yr ( http://www.twdb.state.tx.us/Gam/resources/resources.htm) Radium 228, 224 1400 1200 1000 dpm/m3 800 600 400 200 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 Ra-228 Ra-224 salinity (ppt) Future Goals Short Term 1. Precipitation 2. Soil cover/moisture capacity 3. TWDB Long Term 1. Monitor salinity, nutrients, radium 2. Study discharge/recharge of aquifer 3. Look at nutrient levels to establish input to Copano Bay Questions? Comments? Thanks to all who helped me!
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