Oregon Administrative Rules
Chapter 690 - WATER RESOURCES DEPARTMENT
Division 230 - STANDARDS AND PROCEDURES FOR LOW-TEMPERATURE GEOTHERMAL PRODUCTION AND INJECTION WELLS AND EFFLUENT DISPOSAL SYSTEMS
Section 690-230-0030 - Construction of Low-Temperature Geothermal Production and Injection Wells

(1) Low-temperature geothermal production and injection wells shall be constructed in conformance with applicable rules (OAR 690-200-0005 to 690-225-0110) with specific additions and modifications as described in OAR 690-230-0005 to 690-230-0140.

(2) Low-temperature geothermal production and low-temperature geothermal injection wells shall be constructed in a manner that protects groundwater from contamination, waste and loss of artesian pressure, and substantial thermal alteration.

(3) If utilization of the well causes heating or cooling of the casing resulting in thermal expansion or contraction of the casing to the point that adherence to the minimum well construction standards will not prevent or eliminate groundwater contamination, groundwater waste, or loss of artesian pressure, or substantial thermal alteration, then the licensed well constructor shall submit a written request to the Director to use alternate construction methods and/or materials to prevent groundwater contamination, groundwater waste, loss of artesian pressure, and substantial thermal alteration. Written approval from the Director must be obtained prior to completion of the well.

(4) A well constructor or owner of a low-temperature geothermal production or injection well may submit well construction plans to the Department for assistance and review of construction details.