Two identical groundwater pumps are operating 4.2 km apart. Each pump well structure has a tube diameter of 90cm. The original water table has an elevation of 60m and the hydraulic conductivity is 32m/day. However, it is maintained that the maximum drawdown (at the tube) is 14 m. The water table will not change at the midpoint between the two pump wells. If the water source is from a confined aquifer with thickness of 5m: A. Determine the drawdown at a point 0.5 km from the pump. B. Determine the discharge of each groundwater pump in m^3/s.

Q: 1. Three wells each having a diameter of 250mm are installed at the vertices of an equilateral…

A: Given Diameter of well =250mmrwell=2502=125 mm=.125mVertices of an equilateral triangle=18 m∆h=2.5…

Q: 1. A 30 cm well completely penetrates an artesian aquifer. The length of the strainer is 25 m.…

A: Given Radius of influence 350 mDiameter 30 cmLength 25 mPermeability 45 m/dayDrawdown 4 mTo find out…

Q: EX.8. A 30 cm well penetrates 40 m below static water level. After a long period of pumping at a…

A:

Q: A 400 mm diameter test well penetrates 27 m below the static water table. After 24 hours of pumping…

A: To Determine Transmissibility of the aquifer, T

Q: For steady state flow to a fully penetrating well in a confined aquifer, the drawdown at radial…

A: Solution is attached below as

Q: A well of 0.4 m diameter fully penetrates a 25-m-thick confined aquifer of coefficient of…

A: Diameter of well = 0.4 m  ⇒Radius of well ,rw = 0.2 m B = 25 m K = 12 m/day R = 1000 m H0 = 80 m Hw…

Q: 4- A 1500 ft deep umping well has a 2.5 inch OD tubing inside a 8 in ID casing. Without the packer,…

A: Solution: Given: permeability k = 40 ms thickness h = 5 ft Porosity ϕ= 30v  compressibility ct=…

Q: A well with diameter of 42cm fully penetrates 32m below the static water table. After 24 hours of…

A: Given,Radius of well, rw = 0.422 = 0.21 mDischarge, Q = 6 m3/min = 660 m3/sec = 0.1 m3/secAt rw =…

Q: The static level of water table in an unconfined aquifer was 35m above the underlying impermeable…

A:

Q: Three piezometers have been installed in the onfined aquifer having a uniform thickness of .6 m. and…

A: B=4.6m

Q: 27 m thick. Determine permeability A tube well of 15 cm diameter penetrates fully an artesian…

A: Given- Diameter of tube well d=15 cm=0.15 mRadius of influence R=200 mIt is neede to find the…

Q: A tube well of 15 cm diameter penetrates fully an artesian aquifer 27 m thick. Determine…

A: This question is related to the Soil Mechanics.

Q: Given the required grout hydraulic head is 10 m, the head of the grout pipe is 1.5m above the…

A: Given, Grout hydraulic head = 10 m Head of grout pipe = 1.5 m Depth of injection point = 4 m Depth…

Q: (b) Give the characteristics of different formations in which groundwater exists. A fully…

A: Given- Artesian well-discharge-Q=25 l/s=2160 m3/daystorage coefficient S=4.5×10-4transmissivity…

Q: A single ideal pumping well, with radius of 1.0 ft and flow rate of 155 gpm, exists in an ideal…

A:

Q: well 12in in diameter penetrate 108 ft below the static water table. After a long period of pumping…

A: h1=108-12=96 fth2=108-7.4=100.6 ftr1=57 ftr2=148 ft To find: (a) transmissivity of the aquifer(b)…

Q: (400 gpm). 16. Determine the maximum steady-state pumping rate in Ips (gpm) for a 305-mm (12-in.)…

A:

Q: A 30 cm well is pumped at the rate of 1000 1pm. The transmissibility of the aquifer is o.015 m²/s.…

A: The given data is: Q=1000 Lps Q=1/60 m3/s x=120 m a=120 m T=0.015 m2/s r=80 m

Q: 3. The permeability of the aquifer is if the drawdown is 4m, discharge is 40litres/sec, thickness of…

A: Given:- Discharge, Q = 40 l/s = 0.04 m3/s Drawdown, s1 - s2 = 4m Thickness of confined Aquifer, B =…

Q: A community of 15,000 capita and fire demand of 35 L/s for six hours is to be served by a 50 cm…

A: Given data, Hydraulic conductivity K = 100 m/d Radial distance r1 = 150 m Radial distance r2 = 50 m…

Q: Two tube wells each of 200 mm diameter penetrate fully in a confined aquifer and are spaced at 150…

A:

Q: Question 4 Calculate the discharge (m³/day) through an infiltration gallery placed at a depth of 4m…

A: Depth H = 4 m Drawdown in the well does not exceed 2.18 m. so, s=2.18 m Length of the gallery L =…

Q: Find the corresponding hydraulic conductivity of aquifer when discharge 3 through the aquifer is…

A: Given- Flow Q=1500 m3/day Length =10,000 m width b=1500 m Heads =300 m & 250 m

Q: A fully penetrating well with diameter of 0.25 m is bored into an unconfined aquifer with hydraulic…

A: Unconfined aquifer Diameter of well (dw) = 0.25m Hydraulic conductivity (k) = 22 m/d porosity (n) =…

Q: Which of the following describes the water divide in an unconfined aquifer with recharge? Select the…

A: this question asking about statement that describe about water divide in an unconfined aquifer with…

Q: PROBLEM 4: For the 50-mm-diameter siphon drawing oil (sp gr = 0.82) from the oil reservoir, the head…

A: D = 50 mmGo = 0.82HL(1-2) = 1.50 mHL(2-3) = 2.40 m   To determine : Discharge of oil in syphon.…

Q: Determine the position of the fresh and saline water interface and maximum permitted pumping rate if…

A:

Q: A 300 mm diameter test well penetrates 27 m below the static water table. After 24 hours of pumping…

A:

Q: Question- For steady state flow to a fully penetrating well in a confined aquifer, the drawdown at…

A: Given data- Steady-state flow- Drawdown- S1=4.92 m, S2=5.45 m, Radial distance- r1=1.56 m, r2=1.80…

Q: A confined aquifer with T = 7.0 x 10-3 m2/s and S = 5 x 10-4 is pumped by two wells, 35 m apart. One…

A: The objective of this question is to calculate the drawdown in a confined aquifer due to pumping…

Q: What is the pumping rate (in m³/d) required to create a drawdown of 129 mm at 173.7 from the well…

A: step 1-

Q: Determine the flow rate in a confined aquifer with a hydraulic conductivity of 20m/d, and thickness…

A:

Q: 5.15A fully penetrating well in an unconfined aquifer pumps at a constant rate of 2000 m³/day for a…

A: Step 1

Groundwater Flow

The term groundwater refers to the water which is found beneath the earth's surface. Pores present in the soil and rocks with fractures make a passage for rainwater to enter the earth's surface and deposit as groundwater. The flow nature and direction of groundwater under the earth's surface directly impacts the strength and compressibility of the soil, which reflects its ability to support structural loads.