H.Amdt.76 - Amendment requires that the National Water Research Development Plan specified in the bill be revised and resubmitted to Congress every 4 years after its initial submission and authorizes appropriations of $2 million for each of fiscal years 2013 and 2014. It also (1) requires a review of measures related to abating water quality impairment; (2) requires the committee to work with institutions of higher education; (3) requires cooperation with commercial end users; (4) requires relevant information to be posted on a public website; and (5) requires research into watershed hydrology. The amendment further requires that the plan include a focus on (1) development of the effect of invasive species on water supplies; (2) development of technologies to treat eutrophic water bodies; (3) development of a program to assist state and local regions regarding land conservation; (4) improvement of understanding of chemical impairments to water supply and quality; and (5) identification of whether