A truck carrying gasoline overturns during an ice storm. The gasoline tank is ruptured and the gasoline quickly penetrator the vadose zone and enters the aquifer. Some of the gasoline dissolves in the groundwater. The aquifer has a average linear groundwater velocity of 0.033m/day, a porosity of 0.27, a tortuosity coefficient of 0.6, and a ratio of transverse dispersivity to longitudinal dispersivity of 1:10. For the dissolved gasoline: Where would the center of the contaminant plume be after 120days  How far would the leading edge of the plume have advanced beyond the center of the plume after 120days  What is thr width of the plume after 120days

Q: Z=0 Water Table Steady State Recharge 4.1 m Ground Surface 0 z (meters) 11 K (meters/day) 0.5 K(z) =…

A: Given data:Hydraulic conductivity, k(z)=0.5+0.03zPorosity, n=0.23Depth of unconfined aquifer=-11mWe…

Q: B = 3 m 7.6 m H = 6 m B = 45° a = 30° Impervious layer Given the permeability of the earth dam, k =…

A: Darcy's law states that the flow velocity is directly proportional to the hydraulic gradient (I).…

Q: In confined or unconfined aquifers water levels in wells are above the top of the aquifer?

A: The confined aquifers are the aquifers which have saturated water and that are below the ground…

Q: How much water must be removed from an unconfined aquifer to lower the water table 2 feet. In your…

A:

Q: Groundwater is pumped for domestic use from an unconfi ned aquifer (water-bearing sand layer). The…

A:

Q: For an aquifer with a bulk density of 2 g/cm3 containing 0.5% organic carbon, estimate the estimate…

A: Aquifer: It is an underground  water bearing rock structure. The water from the aquifer is yielded…

Q: In a homogeneous unconfined aquifer of area 3.00 km², the water table was at an elevation of 102.00…

A:

Q: The specific discharge of an aquifer is 0.0006 cm/sec.   The porosity of the formation is 0.4.…

A: Porosity is 0.4

Q: Two observation wells penetrated into a confined acquifer and located 1.5 km apart in the direction…

A: Two observation wells- Distance s=1.5 km=1.5×1000 m=1500 mHead=45 m & 20 m.k=30 m/day,porosity…

Q: (b) The model below represents a watershed in a mountainous area. Precipitation A Groundwater…

A: Watershed in a mountainous area: Geology in the watershed has a lot to do with groundwater recharge…

Q: A groundwater has the following properties: temperature = 25°C, pH = 8.8, TDS = 200 mg/L, and…

A:

Q: Q2// oil formation volume factor 1.25, reservoir bulk volume 180000 acre.ft Calculate; Water Depth…

A:

Q: A permeable layer is underlain by an impervious layer, as shown in Figure 7.30. With k = 5.2 × 10¬ª…

A: Area of cross sectionA=Hcosα×BA=3.8cos12×1mHydraulic…

Q: The slope in the surface groundwater table is termed the __________.

A: The slope in the surface groundwater table is termed the hydraulic gradient.

Q: The hydraulic conductivity of a homogeneous sandy/gravelly aquifer is 3 x 10-2 cm/sec. The…

A:

Q: In a soil column study, a solute with a concentration of 1000 µg/mL is being pumped from the bottom…

A: To solve this problem, we need to use the advection-dispersion equation, which describes the…

Q: Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction…

A:

Q: Name the two types of groundwater aquifers. Describe how they differ.

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Which of the following would have the greatest effect on the hydraulic conductivity of an aquifer…

A: Hydraulic conductivity :  It is nothing but the  permeability of soil through the pores of it by the…

Q: The lake at point A in the diagram is one of the primary points of recharge for the aquifer.…

A: Given: A model representing watershed in a mountainous area   Required: To identify the particle…

Q: An underground storage tank leaks tetrachloroethylene (PCE) at a rate of 100 mL/d (about the volume…

A: Given data:

Q: In this model, which layers are confined aquifers?

A:

Q: The US Geological Survey wants to know how long it will take for a contaminant in an aquifer to…

A: Data Given :- Hydraulic Gradient, i = 0.0015. Hydraulic Conductivity, k = 1000 m/day.Porosity, n =…

Q: Calculate the steady-state recharge rate, and find how long would it take for dissolved road salt to…

A: Given data: Hydraulic conductivity, k(z)=0.5+0.03z Porosity, n=0.23 Depth of unconfined aquifer=-11m…

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.