hydraulic property distribution estimation through groundwater modeling of the observed effects from...
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Hydraulic Property Distribution Estimation through Groundwater Modeling of the Observed Effects from
“Uncontrolled” Resident Hydraulic Stress
Presented By: Shawn Leppert
Leppert Associates, Inc.
MODFLOW and More 2006 Conference
May, 24th 2006
Three Examples of Resident Stress
Unanticipated
Inadvertent River Flood Event
Inadvertant River Flood Event
Tidal Influence on Hydraulic Containment
Anthropogenic
Groundwater Supply Stress for Model Calibration
Resident and Uncontrolled
Large Scale
Unanticipated
SOUTHTANK FARM
CONTAINMENT DIKING
CONTAINMENT DIKING CONTAINMENTDIKING
PLANTTREATMENTWASTEWATER
BUILDINGMAINTENANCE
WAREHOUSE
PARKINGLOT
OFFICE
LOCKERROOMS
GRASS
GRASS
GRASS
WASTE STORAGE
NORTH EASTTANK FARM
PAVEMENT
OILWELL
TANKS
USED OILTANK FARM
WESTYARDAREA
FORMERUSTCAVITY
SVE BUILDING AIR STRIPPINGENCLOSURE
WETWELL
50' OF SHEET PILING
H-10S
H-11S
H-12DH-12S
H-13S
H-14S
H-15DH-15S
H-16S H-17S H-18S
H-19S
H-1DH-1DR
H-1S
H-20S
H-21S
H-2s/H-1S
H-3S
H-4S
H-5S
H-6S
H-7S
H-22D
H-8S
H-9S
P-1
P-2
P-3
P-4
P-5
RW-1RW-2 RW-3
RW-4RW-5
RW-6
RW-7
TB-1
TB-2
50
10
5
1
0.5
0.1
0.05
0.01
0.005
0.001
Legend
Safety-KleenHebron Facility
Drawn by: CRL11/07/03Fig38HHCLowSand.lpk
N
Surface Water Body
Scale:
HydraulicConductivity
(ft/day)
0' 160'feet
Figure: 38Horizontal Hydraulic
Conductivity Distribution- Lower Sand
(Layers 10 & 11)
Well with Data
Recovery Well
WellTemporary Boring
Abandoned Well
River Flood: Data
Small Hazardous Waste Handling Facility
Rural Midwest
Designed an Intricate Hydraulic Stress Test (72 hour)
Construct Extraction Well for the Stress
Refurbish Other Extraction Wells and Equip with Flow Meters
Fit 14 Monitoring Wells with Data Transducers
4 River Stages Placed
River Flood: Stress
Began Test June 3, 2003
Initiated Test
Two Days of Baseline Monitoring
Major Rain Event on Fifth Day
Two River Gauges Swept Away
Diligently Continued Compiling Data
River Flood: Benefits
River Stress was Large Scaled
Hard Work Calibrating Model to Stress
Effects Felt for a Couple of Weeks
Allowed for a very good Permeability Mapping
Very Good Agreement for Mass Depletion Contaminant transport
River Flood: Benefits
River Stress was Large Scaled
Hard Work Calibrating Model to Stress
Effects Felt for a Couple of Weeks
Allowed for a very good Permeability Mapping
Very Good Agreement for Mass Depletion Contaminant transport
Tidal Influence: Data
Closed Hazardous waste Incinerator
Urban East-Coast
Monitored Tidal Influences and Existing Extraction
Down-Loaded NOAA tide Tables
Fit 12 Monitoring Wells with Data Transducers
Monitored at 2.0 minute intervals for 30 days.
Fire
Lagoon
Storm WaterCollection
Basin
Basin ClosureBasin
Racoon
Creek
Corrective ActionManagement Unit
(CAMU)
South Marsh
North Marsh
L317
L316L315B
L314
L313L312
L311
LabOffice
ChangeHouse
GuardHouse
MetalsTreatmentBuilding
Maintenance
88-1-SA
88-2-SA
88-3-SA
88-8-SA
88-5-SA
88-7-SA
DP-4
33S
21-a
22
24-a
23-d
31S-a
30S
35
25-b
15D
21D
24D
35D
30D
31D
32D
33D
101D
102D
CAMU-1-I
CAMU-2-I
CAMU-3-I
MA-5D
MA-6D
MA-7D
MA-2D
MA-11D
MA-8D
MA-1D
MA-4D
MA-9D
CAMU-4-I
CAMU-5-I
CAMU-6-I
88-5-I
88-3-I
DP-5
92-1-I
88-2-I
88-8-I
OW-1
92-2-I
92-3-I
88-1-I
DP-1
92-4-I
MA-10D
MA-3S
101S
102S
W-18
MA-10S
MA-11S
W-17
MA-5S
W
MA-6S
MA-7SII-2
88-9-WT
MA-2S
88-6-WT
MA-1S
X1
4A
29
MA-8S
W-19
AV-2
CAMU-1-W
CAMU-2-W
CAMU-3-W
DD
C
B
P-4
CAMU-6-W
CAMU-5-W
CAMU-4-W
GG
20-a
S
MW-1A
T
W-27
16
23-b
W-24
MW-3A
24
17
15
88-5-WT
MA-9S
MW-5a
27
MW-6
MA-4S
FF
HH
E
K1
28
25-a
MW-4A
L-2
88-2-WT
L
L1
Ra
AA
42.8668
CORRECTIVEACTION
MANAGEMENTUNIT
(CAMU)
COLLECTION
STORMWATER
RACCOONCREEK
1300 ft.EPlant
900ft.NPlant
SOUTHMARSH
L316
L315B
FIRELAGOON
L315A
L317
L313
L314
L312
LABORATORY OFFICE
NORTHMARSH
MAINTENANCE
GUARD
HOUSE
HOUSECHANGE
L311
BUILDING
4100ft.EPlant
TREATMENT
METALS
BASINCLOSURE
AREA
BASIN
3700ft.NPlant
N.J.GridBearing
PlantDatum
N
LD-4
LCH-4
LCH-3
LD-3
LD-2
LCH- 2
LCH-1
Legend
SouthMarsh Major Feature
Safety-KleenBridgeport
Tidal StudyMonitoring Wells
Drawn by:CRL
4/9/02
North
Water Body
Scale:
Water TableMonitoring Well
0' 500'
Feet
L1
88-1-I
88-1-SA
88-1-I
S
88-5-SA
88-5-WT
88-5-I
88-3-SA
88-7-SA
88-9-WTMA-2D
88-3-SA
88-5-WT88-5-I
Well
Shallow ArtesianMonitoring Well
IntermediateMonitoring Well
Tidal Influence: Stress
Measured Influence in Monitoring Wells Screened in Three Units
Barometric Pressure
Solar & Lunar Tides
Statistically Compare Influence Measured at Creek to Tide Charts
Develop a Statistical Relation Ship
Model Stress Defined By Measured Step Function
Days from Starting Date (1/29/02)
GroundwaterElevation
2 3 4 5 6
Well 88-3-IWell 88-5-SAWell 88-5-IWell 88-7-SAWell 88-1-IWell 88-1-SAWell 88-3-SA
Legend
Safety-KleenBridgeport
Drawn by:CRL
4/4/02
HydrographsGroup A
Time (two min.)
88
.1.I
leve
ls
8000 9000 10000 11000 12000 13000 14000
-1.5
-1.0
-0.5
0.0
Comparison of Actual (Black) vs. Predicted (Blue) for 88.1.I
Days from Starting Date (1/29/02)
GroundwaterElevation(ft.amsl)
10 15 20-2
-1
0
1
Legend
Observed Elevation
Predicted Elevation
Tidal Influence: Benefit
Use the Quick Response to Tidal Influences for Calibration Verification
Minor Effect on Capture Zones
Observed All Three Influences in Monitoring Well Even Below Hydraulic Connection
Supply Stress: Data
Waste Lagoons
15 Years of Remediation Continuing 15 Years
Southern Rural Quebec
Designed a Two Week Hydraulic Stress Test
Take Control of the Existing Water Supply Well for the Stress
Implement a Constant Pumping Rate
Built 5 Monitoring Wells
Transducers in 22 Monitoring Wells
Verification Packer Testing
Supply Stress: Stress
Extraction Well Effectively Uncontrollable
Maximize Extraction by Discrete Pumping
Measure Many Stresses in Monitoring Data
Stress Well
Two Significant Rain Events
Stress Well Malfunction
Nearby Remediation Extraction
Supply Stress: Benefit
Excellent Transient Calibration Data
Defines Response of Aquifer to Temporal Stress
Shows Effective Permeability Approach is Appropriate
Much More Data Analysis to Come
30
35
40
45
Eleva
tion(meters
amsl)
Bedrock-2UG
Bedrock-1UG
Bedrock-15
Bedrock-13UG
Bedrock-11UG
Bedrock-12UG
Bedrock-10UG
Bedrock-9UG
Bedrock-8UG
Bedrock-7UG
Bedrock-6UG
Bedrock-5UG
Bedrock-4UG
Bedrock-3UG
Injection-2
Bedrock-16DG
Bedrock-14DG
Injection-4
Injection-1
Injection-3
Bedrock AquiferFlownet
Legend
N
Vertical Exaggeration = 50x
mScale:
2250
Injection Trench
ParticleTraceInjection Well
Extraction Well
Conclusions
Take a Close Look at Natural Stresses to Use for Model Calibration
“Resident” Stress such as Groundwater Supply Extraction is Another Stress Alternative