Can you calculate the concentration at the end of the well using the 1-D steady advection-dispersion-reaction equation. The given parameters are distance = 200 m, Initial concentration = 10 mg/L, reaction = 0.0062 / day, dispersion = 1.5 m^2/d, and velocity = 0.5 m/d.
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Can you calculate the concentration at the end of the well using the 1-D steady advection-dispersion-reaction equation. The given parameters are distance = 200 m, Initial concentration = 10 mg/L, reaction = 0.0062 / day, dispersion = 1.5 m^2/d, and velocity = 0.5 m/d.
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- A recuperation test was carried out on a 1.5-meter diameter clay open well. Calculate the yield in m3 /hr of the said well at a specific point in time when the depression head is 0.75 m. Show your solution.The following data relate to a pump-out test: Diameter of well = 24 cm; Thickness of confined aquifer = 27 m; Radius of circle of influence = 333 m; Draw down during the test = 4.5 m; Discharge = 0.9 m^3/s.What is the permeability of the aquifer in mm/s? Choices: a. 2.15 x 10^-2 b. 4.5 x 10^-1 c. 93 X 10^-1 d. 1.6 X 10^-1Calculate hydraulic head and pressure head at a well with the following characteristics: Elevation of top of the casing = 572 (m); Elevation of bottom of the casing = 568 (m) Depth to water table = 2.5 (m)
- Hydrometeorology (Ground Water) Recuperation Test A recuperation test was carried out on a 1-meter diameter clay open well. Calculate the yield in m3/hr of the said well at a specific point in time when the depression head is 0.8 m. Show your solutionQ3. A 200 mm diameter well which fully penetrating a confined aquifer of thickness 25 m is pumped at a constant rate of 2000 m3/day. The steady state drawdown in the well is 8 m and the drawdown in a piezometer 100 m from the well is 1.4 m.(a) Ignoring well losses, calculate the transmissivity of the aquifer, the hydraulic conductivity of the aquifer material and the radius of influence of the well.(b) Repeat the calculation for an unconfined aquifer with saturated thickness 25 mA recuperation test was carried out on a 1.2-meter diameter clay open well. Calculate the yield in m 3 m3/hr of the said well at a specific point in time when the depression head is 0.8 m. Show your solution
- The following data relate to a pump-out test: Diameter of well = 24 cm; Thickness of confined aquifer = 27 m; Radius of circle of influence = 333 m; Draw down during the test = 4.5 m; Discharge = 0.9 m^3/s.What is the permeability of the aquifer in mm/s?A 1-m diameter well penetrates vertically through a confined aquifer 30m thick. When the well is pumped at 113 m^3/hr, the drawdown in a well 15m away is 1.8m, in another well 50m away, it is 0.50m. What is the approximate drawdown in the pumped well?A 200 mm diameter well which fully penetrating a confined aquifer of thickness 25 m is pumped at a constant rate of 2000 m3/day. The steady state drawdown in the well is 8 m and the drawdown in a piezometer 100 m from the well is 1.4 m. (a) Ignoring well losses, calculate the transmissivity of the aquifer, the hydraulic conductivity of the aquifer material and the radius of influence of the well. (b) Repeat the calculation for an unconfined aquifer with saturated thickness 25 m. (c) What would be the calculated values of T, K and R in (a) if the well is 80% efficient?
- Refer to Figure 7.24. The following data were collected during the field permeability measurement of a confined aquifer using a pumping test. Determine the hydraulic conductivity of the permeable layer. Use Eq. (7.49). Thickness of the aquifer, H = 4.5 m Piezometric level and radial distance of the first observation well: h1 = 2.9 m; r1 = 17.8 m Piezometric level and radial distance of the second observation well: h2 = 1.8 m; r2 = 8.1 m Rate of discharge from pumping, q = 0.5 m3/minA 30 cm diameter well completely penetrates a confined aquifer of permeability 45 m/day. The length of the strainer is 20 m. Under steady state of pumping, the drawdown at the well was found to be 3.0 m and the radius of influence was 300 m. Calculate the discharge (L/min).A confined aquifer has a transmissivity T = 200 ft2/day (18.6 m2/day) and a storativity S = 0.0002. A fully penetrating well begins pumping in this aquifer at a rate of 1500ft3/day (42.5m3/day). Using the Theis solution predict the drawdown h0 h at a radius of r = 100 ft (30.5 m) at the following elapsed times: 10 minutes, 1 hour, 5 hours, and 24 hours. *tip* Spreadsheet software could help you do these repeated calculations.