GROUNDWATER
CONTAMINANT TRANSPORT
Hydroscience 311
Setting the stage
Remediation of contamination plumes
Pump and treat
Advection (only advection is plug flow)
Transport process where solute is carried by flowing groundwater
Na : advective mass flux
n: po
Shawn Jandrey
CEE 414
Homework 1 Assignment
1. a) How big would the reservoir have to be (in acre-ft) to just contain the inflow hydrograph? 54.5
ac-ft
b) What would be the peak outflow discharge?
After the reservoir fills up, the peak outflow discharge w
Shawn Jandrey
CEE 414
Homework 1 Assignment
1. a) How big would the reservoir have to be (in acre-ft) to just contain the inflow hydrograph?
54.5 ac-ft
b) What would be the peak outflow discharge?
After the reservoir fills up, the peak outflow discharge w
Shawn Jandrey
CEE 414
7/1/2016
Homework 5
1. Construct a curvilinear NRCS 12-minute unit hydrograph for a 400-acre watershed with a time of
concentration equal to one hour and a CN of 80. (Use time increments of 12 minutes.)
Area
Eff. Rainfall
Duration
Ti
CEE414
Assignment 11
Shawn Jandrey
Q-bar = est for (m) =
s = est. for (s) =
Actual
Gage Height,
Peak_va, (cfs)
(ft)
11.5
22,400
8.8
10,700
1932
1933
Date
Apr. 09, 1932
Apr. 02, 1933
1934
1935
1936
1937
1938
1939
Sep. 28, 1934
Mar. 23, 1935
Mar. 25, 1936
A
Shawn Jandrey
CEE 414
6/10/2016
Homework Assignment 2
1. Tc=1.8(1.1-C)L.5/S.33
Convert this equation to an equation with L (length) in units of meters and S (slope) expressed
as a fraction.
Conversion: 1m=3.28ft
Tc=1.8(1.1-C)1.7912(L).5
4.57(S).33
Tc=1.8(
Shawn Jandrey
CEE 414
Assignment 11
(A) Fit the extreme value type 1 distribution by the method of moments.
E[Q] = 1/l = m = a +gEb
V[Q] = s^2 = (pb)2/6 => b = 0.7797s
Using substitution:
a=
m - 0.5772 * 0.7797 s
a=
16,881.27
b=
10,160.37
qRI =
a - b*ln[-
HYDROSCIENCE CEE 311
Groundwater
Setting the stage
Chicago-Milwaukee area
Since the first documented water well was completed
in the Chicago area in 1864, ground water has
been the sole source of drinking water for about
8.2 million people in the Great La
9/2/2013
HYDROSCIENCE
CEE 311
Unit I Topic 1
Introduction: Course logistics
Professor Loheide - Hydroecology
Civil and Environmental Engineering / Geological Engineering
Pristine vs. degraded ecosystems
Hillslope Meadow Flux
A scientific basis for river r
HYDROSCIENCE CEE 311
Urban Hydrology
Setting the stage
Model simulations project that
streamflow peaks during rainstorms or snowmelt would increase by 450%
Pheasant Branch is expected to be dry between storms
Recharge to the ground-water system would decr
Shawn Jandrey
CEE 414
6/10/2016
Homework Assignment 2
1. Tc=1.8(1.1-C)L.5/S.33
Convert this equation to an equation with L (length) in units of meters and S (slope) expressed as
a fraction.
Conversion: 1m=3.28f
Tc=1.8(1.1-C)1.7912(L).5
4.57(S).33
Tc=1.8(1
Shawn Jandrey
CEE 414
6/24/2016
Homework Assignment 4
Lot Details
50% impervious (CN= 98), 50% pervious (CN=60)
Using the SCS runoff equation with each of the following variations, compute the runoff as a function of
rainfall, for rainfall amounts of zero
Shawn Jandrey
CEE 414
August 6, 2016
Homework 10
Assume that annual flood discharges at a site on a river have the following cumulative distribution
function: FQ(q)=1-exp(-q), where q is discharge in cfs and >0 is a parameter. Note that E[Q] =1/ where
ha
Shawn Jandrey
CEE 414
7/1/2016
Homework 5
1. Construct a curvilinear NRCS 12-minute unit hydrograph for a 400-acre watershed with a time of
concentration equal to one hour and a CN of 80. (Use time increments of 12 minutes.)
Area
Eff. Rainfall
Duration
Ti
Shawn Jandrey
CEE 414
Homework 3
Plot the incremental values of P(t)/P24, for time increments of 6 minutes.
P(t)/P24 vs Time
0.16
0.14
0.12
0.1
P(t)/P24
0.08
6 min
0.06
0.04
0.02
0
0
5
10
15
20
25
30
Time(hr)
Find the maximum incremental values of the 100
CEE 311: Hydroscience HW #11
Submission guidelines
Please submit completed excel spreadsheets via Canvas - no printouts for this group homework. The
yellow cells should guide most of your work, but if you feel you need to add additional tables for
calcula