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Groundwater levels for the Nation

Help home page Navigation help Search criteria help
Output formats help Codes help Parameter help
The search criteria allow you to refine and limit your selection.

You can use this site to obtain water levels for wells. For example, by choosing desired search criteria and entering appropriate constraints, you can select water levels for all the domestic wells in county X with a well depth greater than 100 feet. Once you select your initial search criteria and click submit, you will be able to select from several output formats, including water-level hydrographs on the screen and tab-separated files of data. Tab-separated files are in a useful input format for input to a spread sheet or geographic information system.

Water Level Status (lev_status_cd)
A code indicating the status of the site at the time the water level was measured. If the water level represents a static level, this field is blank. The codes and their meanings are:
Code Description
A Water level was affected by atmospheric pressure.
B Water level was affected by tide stage.
C Water level was affected by ice.
D The site was dry (no water level is recorded).
E The site was flowing recently.
F The site was flowing. Water level or head could not be measured without additional equipment.
G A nearby site that taps the same aquifer was flowing.
H A nearby site that taps the same aquifer had been flowing recently.
I Recharge water was being injected into the aquifer at the site.
J A nearby site that taps the same aquifer was injecting recharge water.
M Well was plugged and not in hydraulic contact with formation.
N The measurement was discontinued.
O An obstruction was encountered in the well (no water level was recorded).
P The site was being pumped.
R The site had been pumped recently.
S A nearby site that taps the same aquifer was being pumped.
T A nearby site that taps the same aquifer had been pumped recently.
V A foreign substance was present on the surface of the water.
W The well was destroyed (no water level was recorded).
X The water level was affected by stage in nearby surface-water site.
Z Other conditions existed that would affect the measured water level.