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<DIV STYLE="text-align:Left;font-size:12pt"><DIV><P><SPAN>12-Jun-25. Zone of Peripheral Concern (ZPC) ZPC for a public surface water supply source and for a public surface water influenced groundwater supply source is a corridor along streams within a watershed that warrants scrutiny due to its proximity to the surface water intake and the intakes susceptibility to potential contaminants within that corridor. The ZPC is determined using a mathematical model that accounts for stream flows, gradient and area topography. The length of the ZPC is based on an additional five-hour time-of-travel of water in the streams beyond the perimeter of the ZCC, which creates a protection zone of ten (10) hours above the water intake.</SPAN></P></DIV></DIV> |