Both Copley and East Palestine are within the Ohio River Basin (the outline in black). Copley is in the Muskingum subwatershed (pink); East Palestine is in the Upper Ohio subwatershed (purple). Because Copley is in the different subwatershed, there is no way for the surface water to interact, and that’s simply because water flows downhill, so the surface water within the Upper Ohio subwatershed is in a “funnel”, the water in the Muskingum subwatershed is in a separate “funnel”, each flowing to the same outlet (the Ohio River) but getting there via two different routes/funnels.
