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APPENDIX G Geologic Cross Sections
EX-4
EX-3
EX-2EX-1
MW-2MW-1
EP-8
EP-7
EP-6
EP-5
EP-4
EP-3
EP-1
EM-7
EM-6
EM-5
EM-4
EM-2
MW-49
EP-99
EP-98
EP-97
EP-96
EP-95
EP-94
EP-93
EP-89
EP-88
EP-86
EP-85
EP-84
EP-83
EP-82
EP-81
EP-80
EP-79
EP-78
EP-77
EP-76EP-75
EP-72
EP-71
EP-70
EP-68
EP-67
EP-66
EP-65EP-64
EP-63
EP-62
EP-60
EP-59 EP-58EP-57
EP-56
EP-54
EP-53
EP-52
EP-51
EP-50
EP-49
EP-48
EP-47
EP-46EP-45
EP-42EP-41
EP-40
EP-39EP-38EP-37
EP-35
EP-29
EP-26EP-25
EP-24
EP-23
EP-22
EP-21
EP-20
EP-14
EP-13
EP-12
EP-85D
MW-131
EP-15R
EP-137
EP-136
EP-135
EP-134
EP-133
EP-132
EP-130
EP-129
EP-128
EP-127
EP-126
EP-124
EP-123
EP-122
EP-121
EP-120
EP-119
EP-118
EP-117EP-116
EP-115EP-114
EP-113
EP-112
EP-111
EP-110
EP-109
EP-108
EP-100
MW-132S
EP-122D EP-61
EP-44
EP-43 EP-36
EP-34
EP-33EP-32
EP-31EP-30
EP-28
EP-19
EP-18
EP-17
EP-11
EP-10
EP-87
EPH-02
EPH-01
PBA-02
PBA-12
EP-125
EP-73EP-27
EM-1
EP-106EP-105
EP-104
EP-103
EP-131EP-74
EP-90
EP-102EP-101
EM-3
EP-107
EX-9
EP-9
EP-16
EP-69
EP-55
EPA-31
EPA-30
EPA-28 EPA-29
EPA-08
EPA-07
EPA-01
EPA-02
EPA-05
EPA-04
EPA-06
PBA-SB14
PBA-SB11
EPA-03
PBA-SB18
PBA-SB17
PBA-SB16
PBA-SB15
PBA-SB01
PBA-SB13
PBA-SB12
PBA-SB10PBA-SB09
PBA-SB08PBA-SB07
PBA-SB06PBA-SB05
PBA-SB04PBA-SB03
PBA-SB02
PBA-Coring
N'
A
B'
C'
K'
J'
M'
I
D'
E'
F'
G'H
L'
I'
GL
J
FE
C
D
K
N
H'
B
A'
M
0 600 1,200Feet
CIT
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014
GRAPHIC SCALE
FORMER EL PASO SMELTER SITEEL PASO, TEXAS
PLAN VIEW - CROSS SECTION LAYOUT
FIGUREG1-1
LEGEND:
Historic Arroyo Trace Lines
Property BoundaryHistorical Drainage Divide
Cross-Section A-N
Rio Grande
Americ
an Ca
nal
Monitoring WellsAbandoned Monitoring WellsSoil Borings
Existing Conditions
Paved Areas Completed to Category II Remediation Standard
Buildings
Lined Landfill Cell
Lined Stormwater Pond
Asphalt Areas from Site Operations
See figure E1-2
A
B'
K'
M'
I
J
C
D
K
B
A'
EX-2EX-1
EP-92
MW-49
PBA-6
PBA-5
PBA-2
EP-99
EP-88
EP-85
EP-81
EP-79
EP-78EP-76
EP-75
EP-54
EP-53
EP-52
EP-51
EP-49
EP-24
EP-22EP-157
EP-150
EP-149EP-148
EP-142
EP-141EP-140
EP-156
EP-155
EP-153
EP-154
EP-147
EP-146
EP-145EP-144
PBA-13
PBA-12
PBA-08
PBA-07
EP-135
EP-126EP-123
EP-115
EP-114
EP-100
EP-156R
EP-143
EP-139
EP-138
PBA-10
EP-151D
EP-152D
EP-141B
EP-141C
EP-141A
EP-140C
EP-140B
EP-140A
EP-139R
EP-138R
EP-152S
EP-151S
EP-150CS
EP-150CDEP-150BD
EP-150BS
EP-150ADEP-150AS
EX-3
EP-73
EP-60
EP-57
EP-55
EP-27
EP-25
EP-23EP-21
EP-125
EP-85D
PBA-SB16
PBA-SB15PBA-SB14
PBA-SB11
PBA-SB01
EPH-SB01
PBA-SB12
PBA-SB09
PBA-SB08
PBA-SB07
PBA-SB05
PBA-SB04
PBA-SB03PBA-Corin g
PBA-SB18
PBA-SB17
PBA-SB13
PBA-SB10
PBA-SB06
PBA-SB02
TP-9
TP-8 TP-7
TP-6
TP-5
TP-4TP-3
TP-2
TP-1
TP-30TP-29
TP-26
TP-24TP-23TP-21TP-20
TP-19
TP-18
TP-17
TP-14TP-13
TP-12TP-11
TP-10
TP5-02S
TP20-02S
TP19-02S
TP13-02S
TP-28
TP-27TP-25
TP-22TP-16
TP-15
TP16-02S
0 200 400Feet
CIT
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014
GRAPHIC SCALE
FORMER EL PASO SMELTER SITEEL PASO, TEXAS
EXPANDED VIEW – PARKER BROTHERS ARROYO
FIGU REG1-2
LEGEND:
Historic Arroyo Trace Lines
Property Boundary
Historical Drainage Divide
Cross-Section A-N
Monitoring WellsAbandoned Monitoring WellsSoil Borings
Existing Conditions
Paved Areas Completed to Category II Remediation Standard
Buildings
Lined Landfill Cell
Lined Stormwater Pond
Asphalt Areas from Site Operations
Test Pit Locations
G
3660
3670
3680
3690
3700
3710
3720
3730
3740
3750
3760
3770
3780
3790
3800
3660
3670
3680
3690
3700
3710
3720
3730
3740
3750
3760
3770
3780
3790
3800
0 100 200 300 400 500 600 700 750
SLAG
SAND/GRAVEL
EX
-3
WELL/BORING ID
TD=85' TOTAL DEPTH OF BOREHOLE IN
FEET BELOW GROUND SURFACE
LEGEND
B B'
(South)(North)
TD=40'
PB
A-0
6 (T
EM
P W
EL
L)
TP
-1
8
TD=3'
PB
A-0
4
TD=6'
TP
-1
7
TD=4'
TP
-1
6
TD=6'
TD=20'
PB
A-0
5B
(T
EM
P W
EL
L)
TD=40'
EP
-8
5/8
5D
TD=50'
EX
-3
TD
=1
0'
TP
-1
5
SAND/GRAVEL
SHALE
?
?
?
?
?
RECENT WL
ARSENIC CONCENTRATION
IN SOILS (mg/kg)
ARSENIC CONCENTRATION
IN GROUNDWATER (mg/L)
0 80 160
HORIZONTAL SCALE IN FEET
0 20 40
VERTICAL SCALE IN FEET
NOTES:
NORTHING AND EASTING COORDINATES ARE TEXAS
STATE PLANE, CENTRAL ZONE (NAD 83 DATUM) AND
ARE IN U.S. SURVEY FEET.
ELEVATIONS ARE BASED ON NGS VERTICAL CONTROL
MONUMENT Q460. RECORD ELEVATION IS 3738.19
(NAVD 88 DATUM).
1.
2.
MEASURING POINT FOR ALL WELLS IS TOP OF CASING
ON THE NORTH SIDE.
3.
K>24HYDRAULIC CONDUCTIVITY (K)
VALUES IN FEET/DAY
DEFINITION:
GROUNDWATER
ELEVATION (DATE)
(P
RO
JE
CT
ED
LO
CA
TIO
N)
(P
RO
JE
CT
ED
LO
CA
TIO
N)
(9/11)
(6/11)
(6/11)
?
?
?
SLAG
SANDSTONE
SANDSTONE
?
?
?
?
?
?
?
?
?
?
?
WELL SCREEN (BLUE INDICATES
WELLS IN SEMI-ANNUAL
MONITORING NETWORK)
ESTIMATED CURRENT
WATER TABLE
K>116
K>24
VERTICAL EXAGGERATION (VE)=4x
EL
EV
AT
IO
N, F
EE
T (A
MS
L)
EL
EV
AT
IO
N, F
EE
T (A
MS
L)
(9/11)
AMSL = ABOVE MEAN SEA LEVEL
WL = WATER LEVEL
=<0.01 mg/L
TOTAL ARSENIC
CONCENTRATIONS
IN GROUNDWATER
EPA Arsenic Maximum
Contaminant Level
(MCL) =0.01 mg/L
=>0.01 mg/L
=>0.1 mg/L
=>1.0 mg/L
=>10 mg/L
(8/05)
(9/11)
SANDSTONE BEDROCK
(MOJADO FORMATION)
SHALE BEDROCK
(MESILLA VALLEY
FORMATION)
CROSS-SECTION B-B'
EL PASO SMELTER SITE
EL PASO, TEXAS
G1-4
3680
3690
3700
3710
3720
3730
3740
3750
3760
3770
3780
3790
3800
3680
3690
3700
3710
3720
3730
3740
3750
3760
3770
3780
3790
3800
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
C'
(West)
PB
A-02
PB
A-12
TP
-24
TP
-23
TP
-22
PB
A-10
EX
-3
EP
-85/85D
TP
-15
PB
A-05B
(T
EM
P W
ELL)
PB
A-06 (T
EM
P W
ELL)
TP
-14
TP
-13
TP
-6
PB
A-07
TP
-5
EX
-2
OB
S-1
EX
-1
EP
-122D
SS
IA
5-17
EP
-122 IN
J2
EP
-122 O
BS
1
EP
-122 O
BS
2
EP
-122 O
BS
4
PZ
-1
PZ
-3
MW
-1
ELE
VA
TIO
N, F
EE
T (A
MS
L)
ELE
VA
TIO
N, F
EE
T (A
MS
L)
TD=45'
TD=37'
TD=34'
TD=50'
TD=40'
TD=12.5'
TD=10'
TD
=10'
TD=20'
TD=10'
TD=9'
TD=40'
TD=10'
TD=27'
TD=10'
TD=3'
TD=41'
TD=40'
TD=27.5'
TD=27'
TD=27'
TD=21.5'
SLAG
SAND/GRAVEL
CLAY
LOWER PERMEABILITY SAND/GRAVEL (SILTY, CLAYEY, CEMENTED)
TD=50'
TD
=5'
SLA
G R
AM
P
UN
IO
N P
AC
IF
IC
R
R
PA
IS
AN
O D
RIV
E
CLAY
?
?
?
?
?
??
?
?
?
?
?
?
FILL
SHALE (BEDROCK)
AVG LOW WATER ELEV=3718.4
AVG HIGH WATER ELEV=3722.9
AM
ER
IC
AN
C
AN
AL
CA
NA
L W
ID
TH
=12'
(S
HO
WN
E
XA
GG
ER
AT
ED
D
UE
TO
A
CU
TE
A
NG
LE
O
F S
EC
TIO
N)
SILT
EX
-3
WELL/BORING ID
TD=85'TOTAL DEPTH OF BOREHOLE IN
FEET BELOW GROUND SURFACE
LEGEND
HIGH WL
RECENT WL
LOW WL
ARSENIC CONCENTRATION
IN SOILS (mg/kg)
ARSENIC CONCENTRATION
IN GROUNDWATER (mg/L)
NOTES:
K>26DEFINITION:
GROUNDWATER
ELEVATION (DATE)
0 200 400
HORIZONTAL SCALE IN FEET
0 20 40
VERTICAL SCALE IN FEET
C
(East)
AMSL = ABOVE MEAN SEA LEVEL
WL = WATER LEVEL
1. NORTHING AND EASTING COORDINATES ARE
TEXAS STATE PLANE, CENTRAL ZONE (NAD 83
DATUM) AND ARE IN U.S. SURVEY FEET.
2. ELEVATIONS ARE BASED ON NGS VERTICAL
CONTROL MONUMENT Q460. RECORD ELEVATION
IS 3738.19 (NAVD 88 DATUM).
3. MEASURING POINT FOR ALL WELLS IS TOP OF
CASING ON THE NORTH SIDE.
HYDRAULIC CONDUCTIVITY (K)
VALUES IN FEET/DAY
(6/11) (6/11)
(6/11)
(P
RO
JE
CT
ED
LO
CA
TIO
N)
(P
RO
JE
CT
ED
LO
CA
TIO
N)
(9/11)
(6/11)
(6/11)
(6/11)
(8/11)
(8/11)
(2/06)
TD=20'
?
?
?
?
?
?
?
?
?
? ?
?
?
?
?
?
?
?
?
?
EP
-122
?
SILT
SILT
SILT
SLAG
SLAG
SAND/GRAVEL
VERTICAL EXAGGERATION (VE)=10x
WELL SCREEN (BLUE INDICATES
SCREEN IN SEMI-ANNUAL
MONITORING NETWORK)
BASAL GRAVEL
(9/11)
K=26K=362K>24
K>24
K=116
CLAY
=<0.01 mg/L
TOTAL ARSENIC
CONCENTRATIONS
IN GROUNDWATER
EPA Arsenic Maximum
Contaminant Level
(MCL) =0.01 mg/L
=>0.01 mg/L
=>0.1 mg/L
=>1.0 mg/L
=>10 mg/L
(9/11)
(9/07)
(8/11)
(2/11)
SHALE BEDROCK (MESILLA VALLEY FORMATION)
WELL SCREEN (GRAY
INDICATES SCREEN IN
AN ABANDONED WELL)
(9/11)
(8/05)
(9/11)
(9/11)
CROSS-SECTION C-C'
EL PASO SMELTER SITE
EL PASO, TEXAS
G1-5
G
G
G
G
G
G
G
G
G
G
FIGURE
CROSS-SECTION N-N'
EL PASO SMELTER SITE
EL PASO, TEXAS
G1-16
EX-1
3745
3725
3750
3740
3735
3730
OBS-1
EP-85
EP-81
EP-78
EP-75
EP-73
EP-54EP-49
EP-114
0.1
1.00.0
1
10
1.00.1
1.0
1.0
0.1
1.0
0.01
10
0 160 320Feet
CIT
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Proj
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Proj
ect #
)
GRAPHIC SCALE
FORMER EL PASO SMELTER SITEEL PASO, TEXAS
PLAN OVERVIEW - PARKER BROTHERS ARROYO
FIGUREG2-1
LEGEND:
±Interim Site Monitoring Well
Approximate Parker Brothers ArroyoSaturated Thickness ExtentHistoric Arroyo Trace Lines
Historic Drainage Divide
Bedrock
Total Arsenic Contours (mg/L),August - September 2011Water Level Contour (feet amsl)
Property Boundary
FIELD DEMONSTRATION OF GROUNDWATER REMEDY IN PARKER BROTHERS ARROYO
PRB-1
Cross Section Lines
Permeable Reactive Barrier(PRB; size exaggerated)
AA'
B'
B
PRB-2
Path
:Z:\G
ISP
RO
JEC
TS\_
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xd D
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7/6
/201
6 Ti
me:
3:1
4:16
PM
Note:amsl - above mean sea level
mg/L = milligrams per liter
Arsenic Texas Risk Reduction Rule - Protective Concentration Limit (PCL) = 0.01 mg/L
Proposed Landfill Extent
Abandoned Monitoring Well
G
G