Human waste should not be…

Human waste should not be spread on a 50 acre property that has two creeks running by it that are water sources for cattle.There are a significant number of family homes and farms within a three kilometre area.Is there a definite guarantee that chemical and bacterial pollutants will not affect the quality of the water in the nearby creeks,ponds,and wells?We think that this waste spreading should be rejected as the property is far too much of a risk for compromising the area residence and animals.