Part 1 may be amended to do any of the following:
(a) apply this Plan to new or additional groundwater sources or water management areas (including part thereof) or modify (including to amend the boundaries) or remove an existing groundwater source or water management area (including part thereof) from this Plan,
(b) add, remove or modify a management zone, including the water sources to which a management zone applies and the boundaries of such a zone,
(c) amend the Plan Map .