HORTON, Kan. (AP) — A Kansas Indian tribe is celebrating a new water rights agreement that will help it develop a reservoir on its reservation. The agreement between the Kickapoo Tribe of Kansas and the state was approved earlier this month but still must be ratified by Congress. The St. Joseph News-Press reports that the deal is the next step toward developing the Plum Creek Project, which has been in the works for decades but slowed by private property owners reluctant to give up land in the watershed. The agreement quantifies the tribe's water rights, which was necessary before it could start storing the water once the project is completed. Kickapoo Tribe of Kansas chairman Lester Randall says in addition to quantity, the agreement also could help improve water quality for the reservation.