Ephraim Village Of--wastewater Treatment Plant Townline Rd Ephraim, WI 54211 Phone : (920) 854-4991 Business Category Plumbing Heating Equipment & Supplies Business Services Water Filters & Purification Equipment Water Softening & Conditioning Equipment Water Treatment Service Waste Water Treatment Plant 10361 Townline Dr Sister Bay, WI 54234 Phone : (920) 854-4991 Business Category Regulation & Admin Of Communications Electric Gas & Other Utilities