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Groundwater levels for the Nation

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Agency code = usgs
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  • 412852072311401
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USGS 412852072311401 CT-HD 431

Middlesex County, Connecticut
Latitude  41°28'52", Longitude  72°31'14" NAD27
Land-surface elevation 100.00 feet above NGVD29
The depth of the well is 380 feet below land surface.
This well is completed in the New York and New England crystalline-rock aquifers (N600NECRSN) national aquifer.
This well is completed in the Non-Carbonate Crystalline Bedrock (300NCBC) local aquifer.
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Date Time
?
 
Water-level
date-time
accuracy
?
 
Parameter
code 		Water
level,
feet
below
land
surface		 Water
level,
feet
above
specific
vertical
datum		 Referenced
vertical
datum
?
 
Status
?
 
Method of
measurement
?
 
Measuring
agency
?
 
Source of
measurement
?
 
Water-level
approval
status
1965-01-01 D62610 82.00NGVD291OUSGSSA
1965-01-01 D62611 81.01NAVD881OUSGSSA
1965-01-01 D7201918.00  1OUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Parameter code62610Groundwater level above NGVD 1929, feet
Parameter code62611Groundwater level above NAVD 1988, feet
Parameter code72019Depth to water level, feet below land surface
Referenced vertical datumNAVD88North American Vertical Datum of 1988
Referenced vertical datumNGVD29National Geodetic Vertical Datum of 1929
Status1Static
Method of measurementOObserved.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.