On 
https://www.jewishgen.org/Communities/community.php?usbgn=-1041550
you will see four JOWBR data on the Montefiore and Beth Moses cemeteries where burial of Chasewater (also listed as Hashevater and Chashtchivater) Aid Societies are listed.
There is also link to Khashchuvatye, Ukraine  (current town Ukrainian name spelling) Yzkor Book and listing of 67 researchers for this town in JGFF database.

Best

Alexander Sharon
JGFF editor