AB 709: Sustainable Groundwater Management Act: groundwater sustainability plans.

The bill aims to provide flexibility for groundwater sustainability agencies in managing high- and medium-priority basins. It allows agencies to submit multiple groundwater sustainability plans for a basin, but with certain conditions. The plans must be coordinated and submitted to the department for review. The department will evaluate the plans within two years and issue an assessment. The bill also allows agencies to amend their coordination agreement following department review, giving them more control over their plan's implementation.