Dakota Water Resources Act of 1999

[AI summary unavailable — showing source text] Dakota Water Resources Act of 1999 - Amends Federal provisions relating to the Garrison water diversion unit, North Dakota (part of the Pick-Sloan Missouri River Basin Program), to: (1) revise the stated purpose of offsetting the loss of farmland resulting from the construction of features of such Program to provide for offsetting such loss by means of a multipurpose federally- assisted water resource project providing irrigation, municipal, rural, and industrial water systems, fish, wildlife, and other natural resource conservation and development, recreation, flood control, ground water recharge, and augmented stream flows; and (2) authorize the State of North Dakota, jointly with the Secretary of the Interior, to construct such project within the State. Directs the Secretary to estimate the actual construction cost of unit facilities already in existence, as well as their annual operation, maintenance, and replacement costs. Makes the Secretary responsible for operation and maintenance (O&M) costs of that portion of the capacity of such facilities that remain unused. Makes the State responsible for: (1) O&M costs of the proportionate share of existing unit facilities that are us…