The Wastewater Collection system, for the Sanitary District receives wastewater from Orleans, Spirit Lake, Okoboji, Arnolds Park, West Okoboji, Wahpeton, Milford and some of the unincorporated areas around the Iowa Great Lakes.  The wastewater collection system is capable of transporting an average of 2 million gallons a day to the wastewater treatment plant in north Milford.  The numbers below are some stats for the collection system, that is currently maintained by 9 employees.