Our goal is and always has been, to provide to you a safe and dependable supply of drinking water. There are two sources of drinking water for City of Pendleton. The first is a series of infiltration galleries, commonly known as Thornhollow Springs, located approximately 20 miles east of the city near the Umatilla River. The second source consists of 5 deep basalt wells located throughout the city and another deep basalt well located 6 miles east of the city near Mission. We are pleased to report that our drinking water is safe and meets federal and state requirements.
Chlorine is added to the water for disinfection.
There is no other treatment at this time. This report shows the City's water quality as delivered to you. The city is embarking on a multi-million dollar water system infrastructure project. The concept is to filter Umatilla River water during the winter months through a water treatment plant, serve the filtered water to the community, and store additional filtered water below ground in the existing basalt wells. When flows are no longer available from the Umatilla River for use, the City would pump the stored water out of the basalt wells to serve to the community.