A series of changes related to the operations of the Sweetwater Authority has given rise to concerns that the South Bay water agency’s governing board has ceded too much power to the general manager and diminished transparency. Among the set of revisions to policies that govern the water agency and its governing board: directors are no longer allowed to seek information from staff without the general manager’s knowledge, the Sweetwater Authority is no longer required to keep minutes of meetings when directors on committees convene and the general manager is now allowed to spend up to $75,000 without board approval.