Related by context. Frequent words. (Click for all words.) 68 aquifer 66 Edwards Aquifer 63 groundwater 61 aquifers 58 underground aquifers 57 reservoir 56 Aquifer 56 Ogallala Aquifer 55 groundwater pumping 52 water 52 reservoirs 51 drainage basin 51 Groundwater 50 basin 49 treated effluent 49 headwaters 48 irrigated agriculture 48 drainage 48 Reservoir 48 wastewater 48 wells 48 septic 47 river basin 47 basins 47 seepage 47 River basin 46 flood plain 46 dewatering 46 septic tanks 46 Brushy Creek 46 watercourse 46 septic systems 46 floodplain 46 freshwater 46 lake 46 drainage ditches 45 Water Treatment Plant 45 wastewater treatment 45 chlorination 45 mgd 45 tributary 45 wetlands 45 River Basin 45 leachate 45 waterlines 44 Austin Chalk 44 Lake Okeechobee 44 salinity 44 fracing 44 hydrologic 44 sewer 44 sewage 44 sediment 44 streamflow 44 SAWS 44 creek 44 watersheds 44 brines 44 wetland 44 septage 44 lakes 43 irrigation 43 sedimentation 43 brackish 43 Reservoirs 43 storm sewers 43 runoff 43 brine 43 LCRA 43 TCEQ 43 irrigate 43 stormwater drainage 43 hydrogeologist 43 creeks 43 sewer mains 43 subsurface 43 sanitary sewer 43 outfall 43 Pumping Station 43 Swiftmud 43 effluent 43 Runoff 42 contaminated groundwater 42 Athabasca River 42 streambed 42 Creek Reservoir 42 snowmelt 42 Lake Lanier 42 waterflood 42 meltwater 42 hydrology 42 groundwater contamination 42 stormwater 42 Cottonwood Creek 42 brackish water 42 hydrological 42 Middle Fork 42 irrigating 42 Lake Sakakawea 42 mountain snowpack 42 irrigation ditches