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-400
-300
-200
-100
0
100
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Self-potential (mV)
a
Entressen Landfill
Settling basins
SP base
Wells for chemicalanalyses7
SP data points
Ground waterflow direction
N
Wells for piezometricanalyses
500 m
P12P12
P13P13
P2P2
73
1200m
71000m
10 11 2
23
6
17
5
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21
P8P8
SP profiles (seeFigure 9)
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NO3/O2 red.Fe(III)/Mn(IV) red.CH4 + SO4 red.
landfill
Organicmatter
[Fe2+]=0 mg/l
[Fe2+]>10 mg/l
C(H2O)
FeIIIOOH
BiofilmOrganicmatter
Diffusion
Fe2+
EH0
Fe2+
Aquitard
Aquifer
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EHEHEH1 2 3
Groundwater flow
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Redox potential (mV)
-1000
-800
-600
-400
-200
0
200
73
1200m
71000m
10 11 2
23
65
2692
21
Entressen Landfill
Settling basins
SP base
Wells for chemicalanalyses7
SP data points
Ground waterflow direction
500 m
Wells for piezometricanalyses
Redox Front
Redox Front
15
17
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SP measured on the field
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Piezometric head data
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SP field data
Correlation between SP and EH
EH measured on boreholes
Estimation of a redox map
% /+ "
-500
-400
-300
-200
-100
0
100
0 100 200 300 400 500 600 700-200
-150
-100
-50
0
0 200 400 600 800 1000
P13 P12
SP
(mV
)
Distance (m) Distance (m)
-600
-500
-400
-300
-200
-100
0
100
0 200 400 600 800 1000 1200 1400 1600-400
-300
-200
-100
0
100
0 500 1000 1500 2000 2500 3000 3500 4000Distance (m) Distance (m)
SP
(mV
)
P2 P8
50 m
50 m
100 m
100 m
360 mV
150 mV
350 mV 180 mV
West WestEast East
NorthWest East South
% 3, 2#23&23)$)% + 70300
+370)70.
Entressen landfill
N
92
17
5
26
15
Settlingbasin
11102
23
A
B
0 100 200mD
C
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Electrical resistivity (in Ω.m)
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0.0
Aq
uif
erV
ado
se z
on
eDepth (m)
#10
#92 #17
#15
#2
#5
#11
5.56
3.82
2.25
0.75
AB
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
14.40
11.86
9.56
Mar
l (P
lioce
ne)
7.46
7.0
8.0
Depth (m)
((=!//& ( +& " # !
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" ! ! !# % &
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8Fluid conductivity in boreholes, σf (S/m)
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
Bul
k co
nduc
tivity
from
ER
T, σ
(S/m
)
F = 10.4 = 10.4 + 0.8 0.8 R² = 0.92 = 0.92
-
#11
#2
#92
#26#5
#10#17
σ=(1/F) σf z = -5.56 m = -5.56 m
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8Fluid conductivity in boreholes, σf (S/m)
0.035
0.03
0.025
0.02
0.015
0.01
0.005
0
Bul
k co
nduc
tivity
from
ER
T, σ
(S/m
)
-F F = 23.1 = 23.1 + 1.7 1.7R² = 0.91 = 0.91
#11
#2
#92
#26
#5
#10#17
σ=(1/F) σf z = -3.82 m = -3.82 m
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Calculated electrical conductivity of the groundwater (S/m)
Z = -5.56 mZ = -5.56 m
#92
#5
#10 #11 #2
#15
#17
#26
A
B
N
100 200 300 400 500 600 700 800 900 m
σf = = F σF = 10.4 = 10.4
Z = -3.82 mZ = -3.82 m
100
200
300
400
500
600
700
800
100 200 300 400 500 600 700 800 900 m
#92
#10 #11 #2
#15
#17
#5
#26
A
B
N σf = = F σF = 23.1 = 23.1
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