The amount of iron in the Lackawanna River below the Broadway Street Bridge was typically less than 0.3 milligrams per liter, but once reached 0.348 milligrams per liter. The manganese concentration ranged from less than 0.067 to 0.139 milligrams per liter, with an average of 0.09 milligrams per liter. The aluminum concentration ranged from less than 0.5 to 0.753 milligrams per liter, with an average concentration of 0.63 milligrams per liter. The pH of the river at this point ranged from 6.7 to 7.3 (with an average of 6.95) and the acidity concentration was 0 milligrams per liter. The alkalinity concentration ranged from 19 to 36 milligrams per liter (with an average of 28.17 milligrams per liter). The concentration of sulfate ranged from less than 30.5 to 66.8 milligrams per liter, with an average of 46.25 milligrams per liter.