OAR 340-122-0230: Cleanup Rules for Leaking Petroleum UST Systems: Initial Site Characterization

(1) Unless directed to do otherwise by the Department, a responsible person must collect information about the site and the nature of the release, including information obtained while confirming the release or completing initial abatement measures under OAR 340-122-0225(1). This information must include the following, as appropriate: (a) Data on the nature and estimated quantity of the release; (b) Data from available sources and/or site investigations regarding use and approximate locations of wells potentially affected by the release, presence of a certified drinking water protection area, distance to the nearest surface water, subsurface soil conditions, locations of subsurface sewers, water lines, and other utilities, and land use for all adjacent properties and all properties potentially affected by the release; (c) Results of the measurements required under OAR 340-122-0225(1)(e); (d) Results of the free product investigations required under OAR 340-122-0225(1)(f), to be used by the responsible person to determine whether free product must be recovered; (e) A site map, drawn to scale, showing the location of buildings, current and former locations of UST systems, utility lines, sample locations, and other relevant site information; and (f) Other information necessary to characterize the site. (2) Within 45 days of release confirmation, or within a longer period of time approved by the Department, a responsible person must submit the information collected under section (1) of this rule and required under OAR 340-122-0235(5) to the Department.