Oregon Administrative Rules › Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY › Division 122 - HAZARDOUS SUBSTANCE REMEDIAL ACTION RULES › Section 340-122-0080 - Remedial Investigation

Current through Register Vol. 63, No. 7, July 1, 2024
(1) If,
			 based upon the Preliminary Assessment, the results of a removal, or other
			 information, the Director determines that remedial action might be necessary to
			 protect public health, safety or welfare, or the environment, the Director may
			 perform or require to be performed a remedial investigation to develop
			 information to determine the need for remedial action.
(2) Remedial investigation may include, but
			 is not limited to, characterization of hazardous substances, characterization
			 of the facility, performance of baseline human health and ecological risk
			 assessments, and collection and evaluation of information relevant to the
			 identification of hot spots of contamination.
(3) In the remedial investigation,
			 characterization of the facility may include, but is not limited to,
			 information regarding:
(a) Waste management
			 history and other past practices that could have led to a release of hazardous
			 substances;
(b) Geological and
			 hydrogeologic factors, including, but not limited to, information regarding
			 topography, soils, sediments, drainage controls, and water resources;
(c) Climatologic and meteorologic
			 factors;
(d) Ambient air
			 quality;
(e) Current and reasonably
			 anticipated future land use in the locality of the facility, considering:
(A) Current land use zoning and other land
			 use designations;
(B) Land use
			 plans as established in local comprehensive plans and land use implementing
			 regulations of any governmental body having land use jurisdiction;
(C) Concerns of the facility owner,
			 neighboring owners, and the community; and
(D) Any other relevant information such as
			 development patterns and population projections.
(f) Current and reasonably likely future
			 beneficial uses of groundwater and surface water in the locality of the
			 facility, considering:
(A) Federal, state,
			 and local regulations governing the appropriation and/or use of
			 water;
(B) Nature and extent of
			 current groundwater and surface water uses;
(C) Suitability of groundwater and surface
			 water for beneficial uses;
(D) The
			 contribution of water to the maintenance of aquatic or terrestrial
			 habitat;
(E) Any beneficial uses of
			 water which the Water Resources Department or other federal state or local
			 programs is managing in the locality of the facility; and
(F) Reasonably likely future uses of
			 groundwater and surface water based on:
(i)
			 Historical land and water uses;
(ii) Anticipated future land and water
			 uses;
(iii) Community and nearby
			 property owners' concerns regarding future water use;
(iv) Regional and local development
			 patterns;
(v) Regional and local
			 population projections; and
(vi)
			 Availability of alternate water sources including, but not limited to, public
			 water supplies, groundwater sources, and surface water
			 sources.
(g)
			 Identification of ecological receptors, terrestrial habitats, and aquatic
			 habitats in the locality of the facility; and
(h) Other relevant information, as
			 appropriate.