Static Water Levels Database


The Static Water Levels database contains two data types: the grab data contain the date the well was tested, the static water level, and sometimes the yield; the daily file contains only well levels taken daily

Data items are listed below with their measurement units.


Grab Sample Data

Parameters:

Water level below ground (feet)
Water level footnote:
(0) No footnote
(1) Well being pumped
(2) Well pumped recently
(3) Stage high in nearby stream
(4) Water in nearby stream or ditch
(5) Nearby well being pumped
(6) Surface water on ground nearby
(7) Well dry
(8) Flowing well
(9) Spring or seep

Yield (gallons per minute)
Yield footnote:

(0) No footnote
(1) Instantaneous yield (gallons per minute)
(2) Flowing yield (gallons per minute)
(3) Pumping yield (gallons per minute)

Daily Sample Data

Parameters:

Static Water Level:
Once a day (feet)
Daily maximum (feet)
Daily minimum (feet)
A header exists for each well in the database. It contains location information for the well, in the form of latitude-longitude, township-range, county-state, elevation, drainage basin, X-Y coordinates and zone, and aquifer, if known. The header also contains the well depth, well permit number, a use description, the transmissivity and storage coefficient, if known. Up to eight lines of comment may also be contained in the header.

When water quality samples are taken from wells, the static water level and/or yield sometimes also are measured. Data from some wells are stored in both the water quality database and the static water level database; the well level header provides space for cross referencing the well by its water quality reference number. There are wells, however, whose level and/or yield values are stored only on the water quality database with other parameters. If the well level database does not yield an adequate number of sites for the area of interest, then the user should check the water quality database.


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