Clearwater Harbor Association. Level .70 acre lot and a 30x40 pole shed with private association maintained access to Grass Lake and the Clearwater River. This lot also has association maintained sewer and water hook ups, both are currently being used for a seasonal 5th wheeler. use it to build a new home or just use it to store your lake equipment on, either way this is a great opportunity. The seller currently pays a total of $775.00 per year for sewer, water and access to the common lake area is $75.00 per year. Clearwater River District manages the shared septic system.