Leviticus 11:36 in the King James Version
Nevertheless a fountain or pit, wherein there is plenty of water, shall be clean: but that which toucheth their carcase shall be unclean.
Context
35 Everything whereupon part of their carcass falls shall be unclean; whether oven, or range for pots, it shall be broken in pieces. They are unclean, and shall be unclean to you.
36 Nevertheless a spring or a cistern in which water is gathered shall be clean, but that which touches their carcass shall be unclean.
37 If part of their carcass falls on any sowing seed which is to be sown, it is clean.