Remark 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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remark_cd remark_nm
1s 36s
< Less than
> Greater than
A Average
E Estimated
M Presence verified but not quantified
N Presumptive evidence of presence
R Radchem non-detect, below ssLc
S Most probable value
U Analyzed for but not detected
V Value affected by contamination