Describe how you would analyze the drawdown effect of a pumped well in an unconfined surficial...
Describe how you would analyze the drawdown effect of a pumped well in an unconfined surficial aquifer at a distance of 150 ft from a “supplying stream” that provides water to that surficial aquifer
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Describe how you would analyze the drawdown effect of a pumped
well in an unconfined surficial...
A 10 inch diameter well is drilled to the bottom of an unconfined aquifer. The water...
A 10 inch diameter well is drilled to the bottom of an unconfined aquifer. The water table is originally 500 ft above the bottom of the aquifer. If 100 gal/min is pumped from the well, the equilibrium depth of the water in the well is 224 ft and the radius of influence is 1000 ft. (1) Determine the transmissivity T of the aquifer and (2). How much drawdown should be expected at a distance of 300 ft from the well?
A 0.5-m diameter well fully penetrates an unconfined aquifer, which is 40.0 m thick. The drawdown...
A 0.5-m diameter well fully penetrates an unconfined aquifer, which is 40.0 m thick. The drawdown at the pumped well is 10 m and the hydraulic conductivity of the aquifer is 0.2 . 10-3 (m s-'). If the flow is steady and discharge is 0.01 (mºs-'), determine the drawdown at a site 50.0 m from the well. Draw-down (m): 5.0 8.6 18.6 30.0 A wastewater treatment plant treats 1000 (mº
6.124pts) Giselle has installed a water production well in an unconfined aquifer, She is concerne...
please explain the answer for part D.
6.124pts) Giselle has installed a water production well in an unconfined aquifer, She is concerned about the possibility that when the well is in use drawdown will ower the piezometric and that the water will stop flowing. She has asked for your help in the analysis well surface to the bottom of the Currently, the drawdown at observation well A, 120.0 m from the pumped well, s 12.0m. Observation at 80.0 meters is...
6TH question 5. A 6-in.-diameter well that fully penetrates a 40-ft-thick open aquifer is pumped at...
6TH question
5. A 6-in.-diameter well that fully penetrates a 40-ft-thick open aquifer is pumped at a rate of 100 gpm. The drawdown in the well is 22 ft when a steady water level is established. The drawdown in a well 152 ft distant is 12 ft. Estimate the coefficient of permeability of the soil deposit. CHAPTER 5 STRESS ANALYSIS AND ENGINEERING PROPERTIES 6. Discuss the validity of the answer obtained in Problem 5. Suggest how you would improve the...
Problem 24 A well is screened in a completely confined aquifer is to be pumped at a rate of 165,000 ft/d for 30 days. If the aquifer transmissivity is 5320 ft/d and the storativity is 0.0007, wha...
Problem 24 A well is screened in a completely confined aquifer is to be pumped at a rate of 165,000 ft/d for 30 days. If the aquifer transmissivity is 5320 ft/d and the storativity is 0.0007, what is the drawdown at 50, 150, 250, 500, 1000, 3000, 5000, and 10,000 ft Problem 25 If the aquifer in problem 24 is not completely confined, but overlain by a 8.0 ft leaky confining layer with a vertical hydraulic conductivity of 0.024 ft/d...
a. A well 50 cm in diameter penetrates 33 m below the static water table. After...
a. A well 50 cm in diameter penetrates 33 m below the static water table. After a long period of pumping at a rate of 80 m/h, the drawdowns in two observation wells A and B, 18 and 45 m from the pumped well, were found to be 1.8 and 1.1 m respectively. Determine . the hydraulic conductivity of the aquifer (in m/d) . the expected drawdown in the pumped well • the radius of influence of the pumped well,...
Alt Your supervisor at an environmental consultancy frm has provided you with the following map lain...
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...
could you help me with this exercise and write down the formula please? 6. A farm...
could you help me with this exercise and write down the
formula please?
6. A farm is to be serviced with irrigation requirements from a 30 cm diameter, fully screened, well I surficial aquifer. At present the water table is approximately 1.0 m below the ground surface and nearly horizontal. The aquifer consists of a sand and gravel material that is 15 m thick and sits on top of an impermeable till layer. Upon pumping the well at a constant...
assume student identification number is 918656949. thank you 3) If the steady state pumping rate of...
assume student identification number is 918656949. thank
you
3) If the steady state pumping rate of an artesian aquifer, in gallons per year being pumped by a fully penetrating well, is equal to your student identification number, a. What is the hydraulic conductivity if the aquifer is 166 feet thick and composed of medium sand? The drawdown at an observation well 48 feet away is 9 feet; in a second observation well 490 feet away it is 1.1 feet. (3...
A well was drilled and based on the driller's log, you constructed the vertical profile shown in the figure below. Water was first encountered at 12 m; ultimately, the well was screened betwee...
A well was drilled and based on the driller's log, you constructed the vertical profile shown in the figure below. Water was first encountered at 12 m; ultimately, the well was screened between 17 and 27 meters. Your boss now wants you to design a pump test. Please state briefly your approaches: e.g, what kind of data you need collect during the pump test? What kinds of aquifer properties you may estimate ed on your pump test? How to estimate...
A 10 inch diameter well is drilled to the bottom of an unconfined aquifer. The water table is originally 500 ft above the bottom of the aquifer. If 100 gal/min is pumped from the well, the equilibrium depth of the water in the well is 224 ft and the radius of influence is 1000 ft. (1) Determine the transmissivity T of the aquifer and (2). How much drawdown should be expected at a distance of 300 ft from the well?
A 0.5-m diameter well fully penetrates an unconfined aquifer, which is 40.0 m thick. The drawdown at the pumped well is 10 m and the hydraulic conductivity of the aquifer is 0.2 . 10-3 (m s-'). If the flow is steady and discharge is 0.01 (mºs-'), determine the drawdown at a site 50.0 m from the well. Draw-down (m): 5.0 8.6 18.6 30.0 A wastewater treatment plant treats 1000 (mº
please explain the answer for part D.
6.124pts) Giselle has installed a water production well in an unconfined aquifer, She is concerned about the possibility that when the well is in use drawdown will ower the piezometric and that the water will stop flowing. She has asked for your help in the analysis well surface to the bottom of the Currently, the drawdown at observation well A, 120.0 m from the pumped well, s 12.0m. Observation at 80.0 meters is...
6TH question
5. A 6-in.-diameter well that fully penetrates a 40-ft-thick open aquifer is pumped at a rate of 100 gpm. The drawdown in the well is 22 ft when a steady water level is established. The drawdown in a well 152 ft distant is 12 ft. Estimate the coefficient of permeability of the soil deposit. CHAPTER 5 STRESS ANALYSIS AND ENGINEERING PROPERTIES 6. Discuss the validity of the answer obtained in Problem 5. Suggest how you would improve the...
Problem 24 A well is screened in a completely confined aquifer is to be pumped at a rate of 165,000 ft/d for 30 days. If the aquifer transmissivity is 5320 ft/d and the storativity is 0.0007, what is the drawdown at 50, 150, 250, 500, 1000, 3000, 5000, and 10,000 ft Problem 25 If the aquifer in problem 24 is not completely confined, but overlain by a 8.0 ft leaky confining layer with a vertical hydraulic conductivity of 0.024 ft/d...
a. A well 50 cm in diameter penetrates 33 m below the static water table. After a long period of pumping at a rate of 80 m/h, the drawdowns in two observation wells A and B, 18 and 45 m from the pumped well, were found to be 1.8 and 1.1 m respectively. Determine . the hydraulic conductivity of the aquifer (in m/d) . the expected drawdown in the pumped well • the radius of influence of the pumped well,...
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...
could you help me with this exercise and write down the
formula please?
6. A farm is to be serviced with irrigation requirements from a 30 cm diameter, fully screened, well I surficial aquifer. At present the water table is approximately 1.0 m below the ground surface and nearly horizontal. The aquifer consists of a sand and gravel material that is 15 m thick and sits on top of an impermeable till layer. Upon pumping the well at a constant...
assume student identification number is 918656949. thank
you
3) If the steady state pumping rate of an artesian aquifer, in gallons per year being pumped by a fully penetrating well, is equal to your student identification number, a. What is the hydraulic conductivity if the aquifer is 166 feet thick and composed of medium sand? The drawdown at an observation well 48 feet away is 9 feet; in a second observation well 490 feet away it is 1.1 feet. (3...
A well was drilled and based on the driller's log, you constructed the vertical profile shown in the figure below. Water was first encountered at 12 m; ultimately, the well was screened between 17 and 27 meters. Your boss now wants you to design a pump test. Please state briefly your approaches: e.g, what kind of data you need collect during the pump test? What kinds of aquifer properties you may estimate ed on your pump test? How to estimate...
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Amplitude=3;
fs=8000;
n=0:399;
t=0:1/fs: n*1/fs-1/fs;
signal=3+3*cos(2*pi*1100*t)+3*cos(2*pi*2200*t)+3*cos(2*pi*3300*t);
fftSignal= fft(signal);
fftSignal=f ftshift (fftSignal);
f=fs/2*linspace(-1,1,fs);
plot(f,abs(fftsignal);
xlabel('Frequency(Hz)’)
yla
asked 46 minutes ago