Water-Level Method Type Codes
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# National Water Information System
# 2024/10/03
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# Date Retrieved: USGS Water Data for the Nation Help System
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Code Description
1s 39s
A Airline measurement.
B Analog or graphic recorder.
C Calibrated airline measurement.
D Differential Global Positioning System.
F Transducer.
G Pressure-gage measurement.
H Calibrated pressure-gage measurement.
L Interpreted from geophysical logs.
M Manometer measurement.
N Nonrecording gage.
O Observed.
P Acoustic Pulse measurement.
R Reported, method not known.
S Steel-tape measurement.
T Electric-tape measurement.
V Calibrated electric-tape measurement.
W Calibrated electric cable.
X Uncalibrated electric cable.
Z Other.