Chevron Red River
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Chevron Red River Chevron Red River Lisa Schall Jennifer Smith Underground Storage Tank Bureau
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Chevron Red River. Lisa Schall Jennifer Smith Underground Storage Tank Bureau. Chevron Red River: Background. March 1990 : Petroleum contamination discovered August 1991: Tank closure October 1991 : Gasoline constituents identified in storm sewer discharge to Red River - PowerPoint PPT Presentation
Transcript of Chevron Red River
Chevron Red RiverChevron Red River
Lisa Schall
Jennifer Smith
Underground Storage Tank Bureau
Chevron Red River: BackgroundChevron Red River: Background
March 1990: Petroleum contamination discovered
August 1991: Tank closure
October 1991: Gasoline constituents identified in storm sewer discharge to Red River
May 1992: State lead contract signed
August 1992: Impermeable sleeve installed in storm sewer / Assessment activities completed
Chevron Red River: Extent of Contamination, 7/92Chevron Red River: Extent of Contamination, 7/92
Storm Sewer OutletStorm Sewer Outlet
Chevron Red River: Reclamation SystemChevron Red River: Reclamation System
Hydrocarbon Removed vs Time
0
50
100
150
200
250
300
350
0 1656 4224 8264 12655 16576
Cumulative SVE System Run Time (Hours)
Cu
mu
lati
ve
Gal
lon
s o
f G
aso
lin
e R
emo
ved
MW-3
0
500
1000
1500
2000
2500
Aug-9
3
Oct-93
Dec-9
3
Feb-9
4
Apr-9
4
Jun-
94
Aug-9
4
Oct-94
Dec-9
4
Feb-9
5
Apr-9
5
Jun-
95
Aug-9
5
Oct-95
Dec-9
5
Feb-9
6
Apr-9
6
Jun-
96
Aug-9
6
Oct-96
Dec-9
6
Feb-9
7
Apr-9
7
Jun-
97
Aug-9
7
Date
Ben
zen
e (u
g/l
)
MW-5
0
200
400
600
800
1000
1200
1400
Aug-9
3
Oct-93
Dec-9
3
Feb-9
4
Apr-9
4
Jun-
94
Aug-9
4
Oct-94
Dec-9
4
Feb-9
5
Apr-9
5
Jun-
95
Aug-9
5
Oct-95
Dec-9
5
Feb-9
6
Apr-9
6
Jun-
96
Aug-9
6
Oct-96
Dec-9
6
Feb-9
7
Apr-9
7
Jun-
97
Aug-9
7
Date
Be
nze
ne
(u
g/l)
MW-12
0
200
400
600
800
1000
1200
1400
1600
1800
Aug-9
3
Oct-93
Dec-9
3
Feb-9
4
Apr-9
4
Jun-
94
Aug-9
4
Oct-94
Dec-9
4
Feb-9
5
Apr-9
5
Jun-
95
Aug-9
5
Oct-95
Dec-9
5
Feb-9
6
Apr-9
6
Jun-
96
Aug-9
6
Oct-96
Dec-9
6
Feb-9
7
Apr-9
7
Jun-
97
Aug-9
7
Date
Be
nze
ne
(u
g/l)
Chevron Red River: Expenditures To DateChevron Red River: Expenditures To Date
$29,003.62
$17,213.00
$198,282.34 $132,623.34
Site Assessment
Storm Drain Modification
Installation of ReclamationSystem
Operation & Maintenance ofSystem
Expenditures: Current & FutureExpenditures: Current & Future
To Date: $377,122.30
Projected Cost to Closure: $90,000
