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Getting Started

You can search GeoSam using two methods. You can zoom into an area and click a site to bring up additional information. Or, you can search the database using the tools provided on the right. Details of each tool's function are found below.
GeoSam does not allow all sites to display on the original, full-scale map. More wells may appear as you zoom in.

Missing Wells

You may notice patches or gaps where wells should be. The closer you zoom in the more wells will appear in the area. If you still don't see your well please report it.

Reporting Errors

If you notice something is wrong please report it to our support team.

Map Not Loading

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Date Received
Owner Name
Alt Name
WNumber
PWTS ID
PWS ID
SDWIS ID
USGS ID
Project
Operator
State
County
Quadrangle
Township
Range
Section
Quarter
Latitude
Longitude
Accuracy
UTM X
UTM Y
Site Type
Well Status
Field Located
Elevation
Elevation Accuracy
Landscape Position
Drilling Company
Drilling Date
Drill Method
Bedrock Depth
Well Depth
Total Depth
Well Types
Aquifers
Date
Diameter
Depth
Date
Diameter
Depth
Comments
Date
Casing Type
Start Depth
End Depth
Date
Casing Type
Start Depth
End Depth
Diameter
Amount
Comments
Date
Screen Type
Start Depth
End Depth
Date
Screen Type
Slot Size
Start Depth
End Depth
Diameter
Amount
Comments
Date
Grout Type
Start Depth
End Depth
Date
Grout Type
Placement
Start Depth
End Depth
Comments
Date
Gravel Pack Type
Start Depth
End Depth
Date
Gravel Pack Type
Start Depth
End Depth
Comments
Date
Pump Type
Depth Intake
Date
Pump Type
Diameter
Rating
Depth Intake
Comments
Date
Log Types
Prepared by
Date
Log Types
Prepared by
File
Key
Comments
Start Depth
End Depth
Formation Lithology
Formation Lithology
Formation Color
Start Depth
End Depth
Comments
Start Depth
End Depth
Stratigraphic Unit
System
Series
Group
Formation
Member
Sub Member
Start Depth
End Depth
Contact Accuracy
Penetration
Primary Lithology
Percent
Secondary Lithology
Percent
Tertiary Lithology
Percent
Comments
Date
Static Water Level
Yield
Date
Start Time
Aquifer
Static Water Level
Yield
Pumping Water Level
Yield Method
Measurement
Pump Test
Pump Method
Duration
Comments
Date
Storage Location
Top
Bottom
Date
Storage
Bin
Number of Boxes
Number of Samples
Sample Intervals
Sample Gaps
Sample Top
Sample Bottom
Washed Top
Washed Bottom
Duplicate Storage
Comments
Date
Storage Location
Start Depth
End Depth
Date
Percent Recovery
Storage
Number of Boxes
Start Depth
End Depth
Diameter
Split
Microfossils
Thin Sections
Comments
Well Selection
Open
WNumber
Owner Name
Alt Name
Open