CHR_ID,ELEVATION,READ_DATE,DATUM_ADJ 21001100,1336.95,1983-02-09,NGVD 29 21001100,1337.90,1983-05-04,NGVD 29 21001100,1337.41,1995-04-19,NGVD 29 21001100,1335.87,1999-07-13,NGVD 29