Ground Water Recharge in the High Plains States, and Delivery of Water to the North Platte Irrigation Project: S.1811 A bill to authorize and direct the Secretary of the Interior to engage in a special study of the potential for groundwater recharge in the high plains states, and for other purposes, H.R. 71 An act to authorize and direct the Secretary of the Interior to engage in a special study of the potential for groundwater recharge in the high plains states, and for other purposes, S, 1590 A bill to clarify the contractual authority of the Secretary of the Interior to deliver water to the North Platte Irrigation District Project