This compact between the States of Colorado and Kansas, with the
consent of the United States Congress, provides operating
criteria for the John Martin Reservoir constructed by the Corps
of Engineers in 1943.
During the winter storage season (November 1 - March 31) Colorado
may demand releases of water equivalent to the river flow but not
to exceed 100 cubic feet per second.
During the summer storage season (April 1 - October 31) Colorado
may demand releases of water equivalent to the river flow up to
500 cubic feet per second. Kansas may demand releases of water
equivalent to the portion of the river flow between 500 and 750
cubic feet per second.
During the summer storage season, water being held in storage may
be released upon demand by both states concurrently or separately
in amounts dependent upon the magnitude of the storage. With
concurrent demand, Colorado is entitled to 60 percent of the
release and Kansas 40 percent.