CHR_ID,ELEVATION,READ_DATE,DATUM_ADJ
21008000,1355.60,1964-08-25,NGVD 29
21008000,1355.84,1977-09-26,NGVD 29
21008000,1355.83,1977-09-27,NGVD 29
21008000,1357.07,1985-07-30,NGVD 29