Copper Corrosion Assessment – Marysville Exempted Village Schools – Marysville, Ohio

STONE was contracted to assess a copper corrosion problem at an Elementary School. The school served a population of 310 students and faculty and obtained potable water from on-site groundwater wells. Raw water treatment consisted of sand filters, ion exchange softening, and chlorine disinfection. Routine water testing detected copper concentrations at elevated levels. STONE designed a system to feed zinc orthophosphate into the potable water system to reduce the copper concentrations to allowable levels.

Detailed plans showing the layout of the existing system were prepared by STONE and the proposed chemical feed and mixing equipment selected, designed, and specified. The Ohio EPA Water Supply Data Sheet was prepared and submitted to Ohio EPA. Ohio EPA’s Central District Office approved the plans. The system was installed to abate the high copper concentrations found in the system.

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