The Washington State Department of Health requires periodic testing of the water for coliform and nitrates.
We must submit water samples quarterly for coliform. Typically the DOH would require these samples to be drawn from homes in the service area. However, Yodelin has received a variance from this that allows us to sample at the Pumphouse since to sample at home in the winter, the water operator would have to travel through avalanche terrain and also have unattended access to residents homes.
We must submit water samples annually for nitrates. This is done by the water operator with samples from the Pumphouse