Tumalo Reservoir has a long and complicated history that continues to be debated today. For example, questions were recently raised and presented to Deschutes County about maintenance of Tumalo Reservoir and the use of silt from it to bed pipelines, a practice TID has been doing for more than 80 years. Subsequently, in May 2016, Deschutes County found that it is against a new interpretation of county code for TID to maintain Tumalo Reservoir or use the silt from the reservoir along the canals (where it came from in the first place) to bed pipes without first obtaining a Conditional Use Permit (CUP) for mining from Deschutes County. Deschutes County has also declared Tumalo Reservoir a wetland.
Learn more about Tumalo Reservoir history and current events:Tumalo Reservoir: Past, Present and FutureTumalo Reservoir Lands Ownership Map