Congressional Budget Office Cost Estimate: H.R. 2939: Water Rights Protection Act of 2017 [open pdf - 84KB]
"H.R. 2939 would prevent federal agencies from requiring certain entities to relinquish their water rights to the United States in order to use public lands. The bill also would require the affected agencies to consult with states when developing policy related to land use agreements."
Congressional Budget Office: http://www.cbo.gov/