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Reporting Units

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

This web site provides query access to over 200 million monitoring records originally reported to EPA via the Legacy STORET System.

Code Name
A mg/l
B ug/l
C mg/kg (ug/g)
D ug/kg
E #/100 ml (no./100 ml) (cells/100 ml)
F #/ml (no./ml) (cells/ml)
G #/liter (cell/liter)
H degrees C
I distance
J degrees F
L gpm, gpd, or mgd
M pc/l
O %, percent
P no units, code, ratio, etc.
Q time: day, mo, yr, sec, min, hr
R mmHg
S pH
T pc/gm
U no/sq ft
V #/day (lb/day), lb/yr
W #/effort
X production: ton, ton/day Kg/1000gal
Y wt. measurement
Z "catch all"

STORET Data Access

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