CHR_ID,ELEVATION,READ_DATE,DATUM_ADJ 27000200,694.50,1977-08-30,NGVD 29 27000200,695.60,1977-08-31,NGVD 29 27000200,694.00,1977-11-08,NGVD 29 27000200,694.39,1978-06-01,NGVD 29