The president of the Marin Water board fielded tough questions last week about the district’s options for addressing drought and climate change, one of which would flood ranches next to Soulajule Reservoir. Chiefly: Had the board fully considered the impact that tripling the Hicks Valley reservoir’s size would have on families who have been operating ranches there for generations? “I’m just wondering if the board is fully cognizant of the effect that this would have…