Current through Register Vol. 63, No. 3, March 1, 2024
The purpose of the site characterization report(s) required by
OAR
340-093-0070(3)(e)
is to demonstrate that the proposed facility
will be located in a suitable site and will use appropriate technology in
design, construction and operation. The site characterization report(s) must
describe existing site conditions and a conceptual engineering proposal in
sufficient detail to determine whether the facility is feasible and protects
the environment. Except as provided in OAR
340-093-0070(4),
the site characterization report(s) must include, but not be limited to, the
following:
(1) Information on site
location and existing site conditions, including:
(a) A site location description, including a
location map and list of adjacent landowners;
(b) An Existing Conditions Map of the area
showing land use and zoning within 1/4 mile of the disposal site; and
(c) Identification of any siting limitations
and how those limitations will be addressed.
(2) A description of the scope, magnitude,
type, and purpose of the proposed facility, including but not limited to the
following:
(a) Estimated capacity and
projected life of the site;
(b)
Identification of the communities, industries and/or markets to be
served;
(c) Anticipated types and
quantities of solid wastes to be received, disposed of and/or processed by the
facility;
(d) Summary of general
design criteria and submittal of conceptual engineering plans;
(e) Description of how the proposed
technology compares to current technological practices, or to similar proven
technology, including references to where similar technology has been
effectively implemented;
(f)
Demonstration that the proposed facility is compatible with the local solid
waste management plan and the state solid waste management plan;
(g) Planned future use of the disposal site
after closure;
(h) Key assumptions
used to calculate the economic viability of the proposed facility;
and
(i) The public involvement
process that has been and will be implemented.
(3) A proposal for protection and
conservation of the air, water and land environment surrounding the disposal
site, including control and/or treatment of leachate, methane gas, litter and
vectors, and control of other discharges, emissions and activities which may
result in a public health hazard, a public nuisance or environmental
degradation.
(4) For a landfill,
the following must be included:
(a) A
detailed soils, geologic, and groundwater report of the site prepared and
stamped by a professional Engineer, Geologist or Engineering Geologist with
current Oregon registration. The report must include consideration of surface
features, geologic formations, soil boring data, water table profile, direction
of groundwater flow, background quality of water resources in the anticipated
zone of influence of the landfill, need and availability of cover material,
climate, average rates of precipitation, evapotranspiration, runoff, and
infiltration (preliminary water balance calculations);
(b) Information on soil borings to a minimum
depth of 20 feet below the deepest proposed excavation and lowest elevation of
the site or to the permanent groundwater table if encountered within 20 feet. A
minimum of one boring per representative landform at the site and an overall
minimum of one boring per each ten acres must be provided. Soil boring data
must include the location, depth, surface elevation and water level
measurements of all borings, the textural classification (Unified Soil
Classification System), permeability and cation exchange capacity of the
subsurface materials and a preliminary soil balance;
(c) For all water wells located within the
anticipated zone of influence of the disposal site, the depth, static level and
current use must be identified;
(d)
Background groundwater quality must be determined by laboratory analysis and
must include at least each of the constituents specified by the
department.
(5) Any
other information the department may deem necessary to determine whether the
proposed disposal site is feasible and will comply with all applicable rules of
the department.
Stat. Auth.: ORS 459
Stats. Implemented: ORS 459.015 &
459.205(1)