There’s more anger and scrutiny in Riviera Beach over contamination in the city’s water system, after an emergency meeting raised more questions than answers. Last week, the City removed the utility district director, Michael Low, on the back of a county health department investigation over alarming failures to deal with E. coli in the water system. It had emerged in January that, after finding traces of the bacteria, the contaminated water was not retested nor was the public made aware for seven months.