Oregon Administrative Rules
Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY
Division 44 - CONSTRUCTION AND USE OF WASTE DISPOSAL WELLS OR OTHER UNDERGROUND INJECTION ACTIVITIES (UNDERGROUND INJECTION CONTROL)
Section 340-044-0011 - Classification of Underground Injection Systems
Current through Register Vol. 63, No. 3, March 1, 2024
Injection systems are classified as follows:
(1) Class I. Injection systems that inject hazardous waste, radioactive waste or other fluidsbeneaththe lowermost formation containing an underground source of drinking water. This includes the disposal of fluids containing hazardous waste or radioactive waste into wells, drill holes, sinkholes and cesspools regardless of their capacity or flow rate.
(2) Class II. Injection systems that inject fluids:
(3) Class III. Injection systems that inject fluids for extraction of minerals or other natural resources including sulfur, uranium, metals, salts or potash by methods such as solution mining, in-situ production or stopes leaching.
(4) Class IV. Injection systems that inject hazardous waste or radioactive waste into or above a formation containing an underground source of drinking water. This includes the disposal of fluids containing hazardous waste or radioactive waste into septic systems, drill holes and cesspools regardless of their capacity or flow rate.
(5) Class V. Injection systems not included in Classes I, II, III or IV that inject fluids other than hazardous waste or radioactive waste into the subsurface. Types of Class V injection systems include, but are not limited to, the following:
Stat. Auth.: ORS 454.625, ORS 468.020, ORS 468B.020 & ORS 468B.165
Stats. Implemented: ORS 454.655, ORS 468B.025, ORS 468B.050, ORS 468B.053 & ORS 468B.160