Question

Alt Your supervisor at an environmental consultancy frm has provided you with the following map lain of North showing the water table contours unconfined sandy aquifer in the Coastai Carelina ----28m- Stream -20m - ----24m 순2m-- ---23A- 5 km Stream gaging station Groundwater monitoring well Vertical Scale 1 cm:100 cm Equipotenlial line with --20m-- hydraulic head in m above sea-level Additional information about the field site is listed below: The ground surface is horizantal and at an elevation of 25 m above sea level at the field site. Test holes encounter a 2-m thick clay layer at a depth of 11 m below the land surface The stream cuts through the entire aquifer all the way to the top of the clay layer It is during the dry season, so all the water in the stream is from baseflow The discharge recorded by Stream gaging station A 390,528 m?day The discharge recorded by Stream gaging station B 420,768 m2/day . A) Estimate the hydraulic conductivity and transmissivity of the surficial aquifer B) Draw a scaled cross section along the line X-Y of the surficial aquifer showing the stratigraphy groundwater flow lines, water table, ground surface and stream.

Answer 1