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FLURIDONE

An aquatic herbicide commonly used to control pest plants in lakes. If the lake is also used for irrigation, a fluridone test may be necessary to ensure levels are safe for turf.


FRESHWATER

Water that contains less than 1,000 milligrams per liter (mg/L) of dissolved solids, icluding salt; generally, more than 500 mg/L of dissolved solids is undesirable for drinking.