A well in an unconfined aquifer is pumped at the rate of 50 L/s ( 800 gal/min.). The thickness of the aquifer is 30 m. and the elevation of the phreatic surface is 25 m. above the underlying aquiclude at an observation of well 20 m away from the well and 34.6 m above at a well 50 m. away. What is the value of K for this aquifer?

Q: The water level elevation in METERS ABOVE SEA LEVEL (masl) in BH1 is 1200masl, while that in BH2 is…

A: given- BH1 elevation=1200 maslBH2 elevation=1220 masldistance between boreholes d=15 mwidth B=3…

Q: PROBLEM 2 A well is constructed to pump water from a confined aquifer. Two observation wells are…

A: The given values are as follows The observation wellare…

Q: 30 cm well completely penetrates an unconfined aquifer of saturated depth 40 m. After a long period…

A:

Q: a) Estimate the Transmissivity (T) of the aquifer. b) Based on that estimate, what would you expect…

A: Given Data :  Discharge Rate = Q = 2.1 cum/day Radius of well  = 7.5 cm = 0.075m Drawdown at pumping…

Q: A well in an unconfined aquifer is pumped at the rate of 50 L/s ( 800 gal/min.). The thickness of…

A:

Q: Two discharge wells (1 and 2) penetrating a confined aquifer are pumped at constant rates of 2572 m…

A: step 1-

Q: the average flow velocity at a point in an aquifer was found to be 0.68 m/day by means of a point…

A: Given: The average flow velocity is 0.68 m/day. The slope of the piezometric surface is 0.018. The…

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

A: diameter of penetrated well, d=30cmThe length of strainer, H=25mThe drawdown at penetrated well,…

Q: A tube well of 16 cm diameter penetrates fully in an artesian aquifer 27 m thick. A steady discharge…

A:

Q: A well in a confined aquifer pumped at rate of (220 gallon/min) for (500min), the aquifer has (48…

A: Given Datawu=11u=1∆s=2.4 feet=h0-h    t=4.1 min      =4.1 min ×11440d/min       =2.9×10-3 d  Pumping…

Q: a 45-cm well in an unconfined aquifer of saturated thickness of 48 m yields 701 lpm (liters per…

A:

Q: cm well penetrates 25 m below the static water table. After 24 hours oI pumping out at the rate of…

A: Given data in question  Radius of well 20 cm Rate of pumping 800 lpm Radius of testing wells 20 m…

Q: B- An unconfined aquifer has a thickness of 30m. A fully penetrating 20cm diameter well in this…

A: for unconfined aquifersQ=πkh22-h12lnr2r1k=hydraulic conductivityQ = dischargeh=effective lenth of…

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

A:

Q: The hydraulic conductivity of a 30-m-thick confined aquifer was determined by laboratory testing to…

A: Given :

Q: Problem 1 A field test is conducted in a confined aquifer by pumping a constant discharge of 525…

A:

Q: Estimate the transmissivity of confined - aquifer in steady state flow if you know the drawdown is 3…

A: S1=5m S2=3m rw=2m r2=30m

Q: Estimate the hydraulic conductivity of an unconfined aquifer from the following pump test data and…

A: Depth of restrictive layer  =21 mand depth of water table=4.0 m Height of static water from…

Q: A pumping well in confined aquifer has a diameter of 0.3 m. For a certain discharge, the radius of…

A: Discharge is the flow of volume of water flowing per unit of time and is the product of velocity of…

Q: A well 30 cm diameter penetrates 30m below the static water table. After a long period of pumping at…

A: d=30cm H=30m Q=0.022 cumec

Q: QI) An unconfined aquifer has a thickness of 33 m. A fully penetration 20 cm diameter well in the…

A: Considering the Thickness of Unconfined Aquifer from the Water Table.The Diagram is Given Below:2-…

Q: A 45-cm well penetrates an unconfined aquifer of saturated thickness 30 m completely. Under a steady…

A:

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

A: Data -  h1=108-12=96 fth2=108-7.4=100.6 ftr1=57 ftr2=148 ft

Q: A confined aquifer has a hydraulic conductivity of 100 m/day. The porosity of the aquifer is 0.3.…

A:

Q: A tube well is constructed in a confined aquifer. The discharge of the tube well is 10 L/s, where…

A: Required :- Diameter of the well, dw

Q: An unconfined aquifer has a thickness of 30m . A fully penetrating 20cm diameter well in this…

A: Given: The thickness of the aquifer is 30 m. The diameter of the well is 20 cm. The pumped rate of…

Q: b) A 30-cm well fully penetrates an unconfined aquifer of saturated depth 25 m. When a discharge of…

A: The diameter of pumping well, D =30cm =0.3mThe depth of unconfined aquifer, H =25mThe discharge in…

Q: A tube-well of 20 cm of diameter fully penetrate a horizontal, confined aquifer of infinite…

A:

Q: b. An aquifer with a potentiometric surface is 50 m thick and 500 m wide. Two observation wells are…

A: Calculate total flow of water and velocity between two wells

Q: From the figure shows an unconfined non homogeneous aquifer between two water bodies at depth of 50…

A: Given data:- Depth of water bodies, h1 = 50 m h2 = 45 m Diagram is given;

Q: A confined aquifer has a of recharge. K for the aquifer is 60 m/day, and n is 0.3. The piezometric…

A: aVolume discharge :Q=kAdhdlA=35×1500 k=60mdaydhdl=70-601500

Q: An artesian well with a radius of 0.75 meters was constructed to pump water from a source with a…

A:

Q: SITUATION 2-A confined aquifer underlies an unconfined aquifer as shown in the figure Given the…

A:

Q: What is the specific capacity of the aquifer shown below in gal / ft / day if the aquifer has…

A: We have to find specific capacity of the aquifer in gallon per day.

Q: 6. In a tube well of 20cm diameter in a soil with coefficient of permeability of 4.15* 10 m/s, is 4m…

A: given diameter=20 cmk=4.15×10-4 m/ss=4 mt=30 mR=245 m

Q: well has a diameter of 10 cm. Under steady state condition, what is the expected discharge (lps) if…

A: According to given data  The average discharge  in Lps  is 7.01LPS (Liter per second)

Q: A fully penetrating well of diameter 0.3 m is located in an unconfined aquifer of saturated depth 45…

A:

Q: An confined aquifer has a thickness of 30m. a fully penetrating 20cm diameter well in this aquifer…

A: Q=πkh22-h12lnr2r1Q=35 litsec=35×10-3 m3sec35×10-3=π×k×29.52-22.52ln10010k=7.0475×10-5 msec Hydraulic…

Q: In a confined aquifer, a 50-cm diameter well fully penetrates the aquifer. The hydraulic…

A: Aquifer dimeter=50 cm, Hydraulic conductivity=0.8 m/day, Piezometric head=300 m, Radius of…

Q: SITUATION 3 A confined aquifer shown in the figure has a hydraulic conductivity of 48m/day with…

A:

Q: A tube well of 20 cm of diameter fully penetrate a horizontal, homogeneous and isotropic confined…

A:

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

A: The diameter of well, D =400mmThe depth of well, H=27mDuration of pumping =24 hours = 1…

Q: A confined aquifer is recharged by a continuous supply of water from the certain source. The average…

A: Given Data: The depth of an aquifer is, d=25 m The average width of an aquifer is, b=4 km The…

Q: A 1-m diameter well penetrates vertically through a confined aquifer 30m thick. When the well is…

A:

Q: isotropic confined aquifer of hydraulic conductivity 2 m/day.

A: Given: Diameter = 15 cm Rate of flow = 265 L/min Hydraulic conductivity = 2m/day To determine  drop…

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

A: The diameter of pumping well, d=300mmThe depth of well, H=27mThe discharge rate, Q=96LsThe radial…

Q: m respectively.  Compute the hydraulic conductivity of the aquifer and the radius of influence of…

A:

Q: A confined aquifer has thickness of 33km and 7km wide. Two observation wells are located 1.2km apart…

A: Solution: Given Data: Thickness of confined aquifer=33 kmwidth of confined aquifer=7 kmHead of well…

Q: Given the following: H1 = 1.5 m H2 = 3.0 m H3 = 2.0 m K1 = 0.001 cm/sec K2 = 0.032 cm/sec K3 =…

A:

Q: A well is planned for pumping a confined aquifer at a rate of 40.51 L/s. The hydraulic conductivity…

A: Given data: The thickness of the confined aquifer is H=55 m. The hydraulic conductivity of the…

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.