Shifting Sands

Cape Breton Regional Municipality (CBRM)—located in Sydney, Nova Scotia—has four 10-ft diameter, 18.5-ft straight shell horizontal Hungerford & Terry GreensandPlus filters that treat 1.8 million imperial gpd. The water source is a well containing iron and manganese; the design water analysis has 0.2 mg/L iron and 0.35 mg/L manganese.