Yountville Town Council said the town is taking action to bolster its water testing process after issuing two boil water notices earlier this year. The notices — in July and October — were connected to positive E.coli tests in samples of the town’s water supply. Though they were canceled within a few days, the notices prompted town officials to determine how to avoid such instances in the future. The Town Council decided Nov. 7 to improve its current water testing system by collecting supplementary data and actively monitoring chlorine levels.