Introduction to Hydrogeology Flowing well Roswell Basin NM

Introduction to Hydrogeology Flowing well, Roswell Basin, NM ~1900 Hazardous waste site Mathematical model of contaminant plume Hydrogeologic field assessment Clemson Hydro

Processes in the Water Cycle More background info: http: //water. usgs. gov/edu/ Clemson Hydro 2

Groundwater Flow System http: //wi. water. usgs. gov/glpf/cn_pmp_divides. html Clemson Hydro 3

Overview with Terminology Baseflow to streams depletes water insurfaces aquifer Evapotranspiration (ET) from plants removes water soil Recharge reaches the water table Overland flow during heavy rain Evaporation removes intercepted water Rainfall Baseflow and ET continue until next rainfall Water Interflow Interception table downslope rises on trees, along impermeable B horizon Infiltration into soil Groundwater flow from recharge area tofrom stream Vadose zone Soi l. B water table hor izon Stream Aquifer Clemson Hydro 4

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Water Balance Principle Qout Qin DVs DV V Dt s Qin = Qout + DVs Dt Clemson Hydro 7

Water balance on an aquifer ET P I R Ss ETR ED Ru O G B Clemson Hydro 8

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Rain landing on leaves early in a rainfall Groundwater discharging to stream Water crossing the ground surface Surface where water pressure is atmospheric Downslope flow in the subsurface Flow in stream Flow over the ground surface that occurs only during rainfall Study of water in geologic settings Source of energy in the hydrologic cycle The principle of water balance 2/24/2021 Clemson Hydro 9

Hydrologic Cycle Recharging water to an aquifer ET Recharge Inte rflo w Clemson Hydro 10

Water Uses Agriculture Irrigation Industry Domestic water supply Clemson Hydro

Watersheds Water shed= area drains to a common point. Describe using stream order. 2/24/2021 Clemson Hydro 12

Dewatering during construction Flooding underground construction http: //globalcc. files. wordpress. com/200 9/06/diving_mine. jpg Oso landslide Ecosystem response http: //bloximages. chicago 2. vip. townnews. com/explorernews. com/conte nt/tncms/assets/v 3/editorial/6/e 1/6 e 1 d 2110 -b 436 -11 e 3 -bac 9001 a 4 bcf 887 a/5331 a 7 fdf 0773. image. jpg Clemson Hydro

Water Balance on a Watershed 2/24/2021 Clemson Hydro 14