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Tools for Tools for Tools for Tools for UnderstandingUnderstandingggGroundwater and Lake Groundwater and Lake InteractionsInteractions
Wisconsin Lakes Convention 2008
TOOLSTOOLS
• RESIDENT WORK (with a little help)
• EXPANDED WATERSHED STUDY• EXPANDED WATERSHED STUDY
• MULTI-WATERSHED STUDY
TECHNICAL ASSISTANCE• TECHNICAL ASSISTANCE
• GRANTS
RESIDENT WORKRESIDENT WORK(WITH A LITTLE HELP)(WITH A LITTLE HELP)
• IDENTIFY THE TYPE OF LAKE
LAKELAKE TYPETYPELAKELAKE TYPETYPE
MoundedLake
Direction of local flow
Flow-throughLakeDrainage
Lake
Direction of regional flow
Direction of local flow
RESIDENT RESIDENT WORKWORK(WITH A LITTLE HELP)(WITH A LITTLE HELP)
• IDENTIFY THE TYPE OF LAKE
• MAP THE WATERSHED• MAP THE WATERSHED
MAPMAP THE WATERSHEDTHE WATERSHED
MAPMAP THE WATERSHEDTHE WATERSHED
J
BEULAH
ES
43PICKEREL
BOOTH
SWAN
ARMY
20BOOTH
RESIDENT RESIDENT WORKWORK(WITH A LITTLE HELP)(WITH A LITTLE HELP)
• IDENTIFY THE TYPE OF LAKE
• MAP THE WATERSHED• MAP THE WATERSHED
• MAP SITES OF INTEREST IN THE WATERSHEDWATERSHED
MAPMAP SITES OF INTERESTSITES OF INTEREST
RESIDENT RESIDENT WORKWORK(WITH A LITTLE HELP)(WITH A LITTLE HELP)
• IDENTIFY THE TYPE OF LAKE
• MAP THE WATERSHED• MAP THE WATERSHED
• MAP SITES OF INTEREST IN THE WATERSHEDWATERSHED
• WATER LEVEL MONITORING
MONITOR GROUNDWATERMONITOR GROUNDWATERLEVELSLEVELS
MONITOR GROUNDWATERMONITOR GROUNDWATERLEVELSLEVELS
0 00
0.02
0.04
T)
PUMPON
-0.04
-0.02
0.00
WN
(FEE
T
-0.08
-0.06
0.04
DR
AW
DO
PUMPOFF
-0.12
-0.10
0 2000 4000 6000 8000 10000 120000 2000 4000 6000 8000 10000 12000
TIME (MINUTES)
MONITORMONITORGROUNDWATERGROUNDWATERGROUNDWATERGROUNDWATERLEVELS LEVELS -- GRADIENTSGRADIENTS
MONITOR GROUNDWATERMONITOR GROUNDWATERLEVELSLEVELS
0 600
0 400
0.500
0.600
0.200
0.300
0.400
AD
IEN
T
0.000
0.100GR
A
-0.200
-0.100
1/0/00 1/5/00 1/10/00 1/15/00 1/20/00 1/25/001/0/00 1/5/00 1/10/00 1/15/00 1/20/00 1/25/00
DATE
RESIDENT RESIDENT WORKWORK(WITH A LITTLE HELP)(WITH A LITTLE HELP)
• IDENTIFY THE TYPE OF LAKE
• MAP THE WATERSHED• MAP THE WATERSHED
• MAP SITES OF INTEREST IN THE WATERSHEDWATERSHED
• WATER QUALITY MONITORING
MONITOR WATER QUALITYMONITOR WATER QUALITY
EXPANDED WATERSHED STUDYEXPANDED WATERSHED STUDY
• PROFESSIONAL ASSISTANCE
USGSUSGS
DNR
WGNHSWGNHS
CONSULTANTS
EXPANDED WATERSHED STUDYEXPANDED WATERSHED STUDY
• PROFESSIONAL ASSISTANCE
• STREAM FLOW MONITORINGSTREAM FLOW MONITORING
STREAM STREAM FLOWFLOW MONITORINGMONITORING
GROUNDWATER MONITORINGGROUNDWATER MONITORING
EXPANDED WATERSHED STUDYEXPANDED WATERSHED STUDY
• PROFESSIONAL ASSISTANCE
• STREAM FLOW MONITORINGSTREAM FLOW MONITORING
• LAKEBED TEMPERATURE MONITORING
LAKEBED TEMPERATURELAKEBED TEMPERATUREMONITORINGMONITORING
60
65
50
55
ATU
RE
(F)
40
45
TEM
PER
A
30
35
Nov-06 Dec-06 Jan-07 Feb-07 Mar-07 Apr-07 May-07
DATE
EXPANDED WATERSHED STUDYEXPANDED WATERSHED STUDY
• PROFESSIONAL ASSISTANCE
• STREAM FLOW MONITORINGSTREAM FLOW MONITORING
• LAKEBED TEMPERATURE MONITORING
• GROUNDWATER MODELING
GROUNDWATER MODELINGGROUNDWATER MODELINGGROUNDWATER DISCHARGETO LAKE
LAKE WATER DISCHARGETO AQUIFER
GROUNDWATER MODELINGGROUNDWATER MODELING
WATER LEVELS ATDEPTH OF
WELL SCREEN
WATER LEVELS ATDEPTH OF
WELL SCREENWELL SCREEN –NO PUMPING
WELL SCREEN –333 GPM
M ltiM lti t h d t dit h d t diMultiMulti--watershed studieswatershed studies
Chuck Dunning, USGSg,
Wisconsin Lakes Convention 2008
Dane County surface geologyDane County surface geology
T h i l A i tT h i l A i tTechnical AssistanceTechnical Assistance
Chuck Dunning and Herb Garn, USGS
Wisconsin Lakes Convention 2008
Public Data
Streamflow Data
Ground-Water-Level Data
Ground-Water-Level Data
Groundwater Groundwater Flow ModelsFlow Models•• Darcy’s Law Darcy’s Law -- Water flows downhillWater flows downhill•• Continuity Continuity –– Mass Balance; IN=OUTMass Balance; IN=OUT•• Numerical equations representing streams, Numerical equations representing streams,
wetlands, wells, etc.wetlands, wells, etc.•• Extensive data requirements Extensive data requirements -- “GI/GO”“GI/GO”•• Quantifies system / PredictionsQuantifies system / Predictions•• Highlights areas where more and what type of Highlights areas where more and what type of
data are neededdata are needed
Model DevelopmentModel DevelopmentModel DevelopmentModel Development•• “Take your best guess” “Take your best guess” -- Interpretation Interpretation
of hydrologic dataof hydrologic data•• “Draw a picture” “Draw a picture” -- Conceptual model Conceptual model
developmentdevelopment•• “Keep it as simple as possible” “Keep it as simple as possible” -- one one
layer?, multiple layers?layer?, multiple layers?•• “Build the machine” “Build the machine” -- Model Model
developmentdevelopment•• “Constrain the arm waving” “Constrain the arm waving” --
Calibration and sensitivity analysisCalibration and sensitivity analysis
U.S. Geological Survey Wisconsin Water Science Center
Lake Studies Program
Mission: To provide hydrologic water-quality andMission: To provide hydrologic, water quality, and other scientific information to:
1. Describe current characteristics and conditions of lakes,
2. Identify and understand water-quality problems,
3 P id d di f i l k d3. Provide an understanding of in-lake processes, and
4. Determine effective management actions to protect g por restore lakes.
Detailed Lake Studies Conducted by the U.S Geological Survey
Little St.
Whitefish
Shell
Lac duFlameau
Muskellunge
Dead Pike Little Rock
Lac CourteGermain
SilverKirby
RedCedarLake St. Croix
Clara
Lac CourteOreillesBalsam
D il
GreenPrimary Areas of Study
Nutrient Budgets / EutrophicationWater Level / EutrophicationAeration / Eutrophication
PikeDevilsFishCrystal
Graber Whitewater,RiceFowler
Wind
Aeration / EutrophicationPesticides / Trace MetalsHydrologyGround Water
Delavan
GenevaMcCook
Powers Lauderdale
Lake Data
Funding for Lake Studies• Lake Planning Grants (WDNR)
L k P t ti G t (WDNR)• Lake Protection Grants (WDNR)• Local Communities/agenciesLocal Communities/agencies• USGS Cooperative Funding