CHR_ID,ELEVATION,READ_DATE,DATUM_ADJ
30009400,930.59,1976-05-24,NGVD 29
30009400,928.96,1998-02-05,NGVD 29
30009400,929.03,1998-02-19,NGVD 29
30009400,928.15,2009-06-15,NGVD 29