What is the overall horizontal conductivity for an aquifer with 3 different formations if: formation 1 has a thickness of 7 m and hydraulic conductivity of 15 m/d, formation 2 has a thickness of 12 m and hydraulic conductivity of 6 m/d, formation 3 has a thickness of 16 m and hydraulic conductivity of 1m/d, (Assume that each formation is isotropic and homogeneous) (Please enter the answer with one decimal)

A confined aquifer is 18.5 m thick. The hydraulic head drops 2.99 m between two wellsthat are 823 m apart. If the hydraulic conductivity of the aquifer is 4.35 m/d, how many cubicmeters of water are moving through the aquifer per unit width?

Could you help me answer the following question? Thank you A fully penetrating pumping well extracts groundwater from a confined aquifer with a pumping rate of 750 m3/day. The hydraulic conductivity of the aquifer is 10 m/day and the saturated thickness is 50 m. The drawdown of the aquifer from this pumping well is insignificant at a distance of 1000 m from the pumping well. At what distance from the pumping well is the drawdown 10 cm? Assume the hydraulic gradient is negligible in the local area. Transmissivity T = 1746.76 gal/min/ft   Hydraulic conductivity = 11.645 gal/min/ft2 Storativity = 0.809  The drawdown on Jenny’s Well by the end of August. =0.6902 ft. Observation well situated is 69.7 ft away from the pumping well (which is pumping at the rate of 305 gal/min). The aquifer is confined, and the depth has been measured from well logs and is 150 ft. The data for time (t) and drawdown (s) is given below: t (min) s (ft) 0.072 0.003 0.105 0.006 0.155 0.012…

From the figure shown, the thickness of permeable layer is 1.1m making an angle of 14 degrees with the horizontal. K= 4.87x10^-12 cm/sec. If the vertical thickness depth of the aquifer at point of the first piezometer (left) is 1.5m and the other point at second piezometer is 1.1m, determine the flow rate. h=1.4 m Direction impervious layer of seepage 3 m 14 1.1 m impervious layer L. 14

A confined aquifer shown has hydraulic conductivity of 52 m/day with void ratio of 0.282. The average thickness is 30 m and the average width is 4 km. el = 85 m el = 55 m 80 m aqulfer 1400 m Determine the nearest value of the tirne of travel from the head of aquifer to a point 5.2 km downstream in days (in a whole day).

With units please

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Calculate the effective hydraulic conductivity for flow parallel and perpendicular to layering. Please show and explain the difference in values.

Given: Permeability, k = 40 x 104 cm/s Saturated unit weight of the soil = 20 kN/m³ Other information shown in the Figure E3-3 Determine the following: (a) Quantity of Discharge (b) Total vertical stress at Points B and D (c) Pore-water pressure at Points B and D (d) Effective vertical stress at points B and D 20.0 m 6.5 m 5.0 m 10.5 m Water YAY Concrete Impervious Figure E3-3 1.0 m VAYAYAY 5.0 m

A confined aquifer of 15 m constant thickness is sandwiched between two aquicludes as shown in the figure (not drawn to scale) 55.2 m BT Peizometer P Reference Datum Aquiclude Piezometric Surface Aquiclude Peizometer Q L = 2500 m 34.1 m ונטוב SOM The heads indicated by two piezometers P and Q are 55.2 m and 34.1 m, respectively. The aquifer has a hydrau- lic conductivity of 80 m/day and its effective porosity is 0.25. If the distance between the piezometers is 2500 m, the time taken by the water to travel through the aquifer from piezometer location P to Q (in days, round off to 1 decimal place) is