Sedona wetlands on SR 89A are treated wastewater effluent ponds Sedona AZ (January 24, 2013) – You’ve surely noticed lovely new ponds along Rte 89A, just west of Sedona, on the road’s north side–with flocks of birds and lush plants nearby—sitting across the road from a network of white pipes spouting water. One is the new Sedona Wetlands Preserve; the other is a system for disposing...