CHR_ID,ELEVATION,READ_DATE,DATUM_ADJ
56031500,1319.95,1958-06-20,NGVD 29
56031500,1320.53,1972-07-18,NGVD 29
56031500,1321.28,2010-05-05,NGVD 29
56031500,1321.56,2015-06-03,NGVD 29