4. Technical Review.
After determining that the permit application is administratively complete, the
Department will conduct a Technical Review of the proposed project. The
Department's technical review of the permit application will involve the
following:
a. Engineering Drawings and Plans.
All applications for new Class Two landfills and landfill expansions shall
contain engineering drawings that set forth the proposed landfill location,
property boundaries, adjacent land uses and construction details. All
construction drawings shall be bound and rolled and shall contain the
following:
(1) A vicinity plan or map that
shows the area within one mile of the property boundaries of the landfill in
terms of: the existing and proposed zoning and land uses within that area at
the time of permit application; and, residences, public and private water
supply wells, known aquifers, surface waters (with quality classifications),
access roads, bridges, railroads, airports, historic sites, and other existing
and proposed man-made or natural features relating to the facility. The plan
shall be on a scale of not greater than 500 feet per inch, unless otherwise
approved by the Department;
(2) A
site plan on a scale of not greater than 200 feet per inch unless otherwise
approved by the Department. This plan shall at a minimum identify the
following:
(a) The landfill's property
boundaries, as certified by an individual licensed to practice land surveying
in the State of South Carolina; off-site and on-site utilities (such as,
electric, gas, water, storm, and sanitary sewer systems), right-of-ways and
easements; the names and addresses of abutting property owners; the location of
soil borings, excavations, test pits, gas venting structures (if applicable),
wells, piezometers, environmental and facility monitoring points and devices;
benchmarks and permanent survey markers; on-site buildings and appurtenances,
fences, gates, roads, parking areas, drainage culverts, and signs; the
delineation of the total landfill area including planned staged development of
the landfill's construction and operation, and the lateral limits of any
previously filled areas; the location and identification of the sources of
cover materials; and site topography with five feet minimum contour intervals;
and, any other relevant information as necessary for proper operation. The site
plan drawings shall show wetlands, property lines, existing wells, water
bodies, residences, schools, day-care centers, churches, hospitals, publicly
owned recreational park areas and any building on adjoining property;
(b) Location of surface water, dry runs,
wetlands, the location of the 100-year floodplain boundaries, and other
applicable details regarding the general topography of the landfill site and
adjacent properties within one-fourth ( 1/4) mile of the disposal
area;
(c) The area where
unauthorized waste will be temporarily stored while it awaits removal for
proper disposal; and,
(d) The area
where recovered materials will be temporarily stored;
(3) Detailed plans of the landfill that
clearly show in plan and cross-sectional views the following: the original,
undeveloped site topography before excavation or placement of solid waste; the
existing site topography, if different, including the location and approximate
thickness and nature of any existing solid waste; plan view of the location of
the seasonal high water table in relation to the bottom elevation of the
proposed landfill; a cross sectional view of existing and final elevations,
bottom elevation and deflected bottom elevation, and seasonal high water table;
geologic units; known and interpolated bedrock elevations; the proposed limits
of excavation and waste placement; other devices as needed to divert or collect
surface water run-on or run-off; a plan and cross section view of fill
progression for the life of the landfill; the final elevations and grades of
the landfill; groundwater monitoring system; and, the building locations and
appurtenances;
(4) Detailed plans
of the sedimentation ponds. These plans shall clearly show in plan and cross
sectional views the following: the existing site topography, the seasonal high
water table, pond bottom elevation, permanent pool elevation, first flush
elevation, maximum elevation for sedimentation clean-out, emergency spillway
100-yr storm elevation, riser pipe, antiseep collars, outlet protection,
emergency spillway, dewatering riser, trash/antivortex rack, and sedimentation
pond gauge legend.
b.
Engineering Report. The engineering report shall contain a comprehensive
description of the existing site conditions and an analysis of the proposed
landfill. All engineering reports shall be bound. This report shall include,
but is not limited to, the following:
(1) A
current 7.5 minute quadrant map (U.S. Geological Survey topographic map,
including the legend and name of the quadrant) which shows contour intervals
not exceeding five feet with the location, i.e. footprint, of the proposed
landfill indicated;
(2) Source and
description of cover material to be used. If soil excavated during landfill
construction is to be used as cover material, indicate the location of
stockpiles during landfill operation;
(3) Frequency of covering;
(4) Depth of disposal area;
(5) Final contours of the finished landfill
areas;
(6) Stabilization Plan. This
plan shall:
(a) Identify and locate existing
vegetation to be retained and proposed vegetation to be used for cover, soil
stockpiles, and other purposes; and,
(b) Include a schedule for seeding or
implementing other appropriate erosion control measures. Appropriate measures
shall be taken to stabilize stockpiled soils within 30 days;
(7) Operating Plan. A general
operating plan for the proposed landfill shall include the expected life of the
landfill, the maximum volume of solid waste the landfill will be capable of
receiving over the operational life of the landfill, and the maximum rate at
which the landfill will receive that waste during the designed life of the
landfill. This plan shall at a minimum address the following:
(a) Screening procedures defining the methods
for inspecting and measuring incoming waste;
(b) Procedures for control of storm water
drainage;
(c) Procedures for
prevention of fires;
(d) Procedures
for control of vectors;
(e)
Procedures for odor control;
(f)
Procedures for dust control;
(g)
Procedures for ensuring that waste does not escape the landfill boundaries
during flooding;
(h) Hours of
operation;
(i) Procedures for
excavating, earth moving, spreading, compacting and covering operations,
including a list of equipment to be at the landfill for daily operation. This
submittal shall also include:
i. A
description of the site's preparation and fill progression for the life of the
site in terms of method, depth, location and sequence;
ii. A method of elevation control for the
operator including the location and description of the permanent surveying
benchmark at the site; and,
iii. A
fill progression discussion describing the placement and compacted thickness of
cover;
(j) Description
of stormwater diversion in areas of constructed cells that have not had waste
placement;
(k) A contingency plan
describing landfill operation in the event of fire, explosion, or other event
that would threaten human health and safety of the environment, and equipment
failure. Reserve equipment shall be available within 24 hours of equipment
breakdown. The contingency plan shall also contain procedures for the proper
removal and disposal of unauthorized waste; and,
(l) A list of items that are not listed in
Appendix I but are similar in nature to Appendix I of this regulation that the
permittee wishes to place in the landfill, the anticipated quantity and source
of the waste. Upon Department review, items other than those listed in Appendix
I, that are approved for landfilling, shall be listed on the permit for that
facility. After issuance of the permit, other items may be approved for
disposal at the landfill by modification of the permit by the Department. Only
items that will cause no environmental harm as determined by the Department
shall be approved for disposal;
(8) A groundwater monitoring and corrective
action plan pursuant to Sections D. and E. of this Part;
(9) Detailed closure plan in accordance with
Section I. of this Part, to include a description of the final cover and the
methods and procedures to be used to install the cover. This plan shall also
include the following: an estimate of the sum of all active areas of the
landfill requiring a final cover at any time during the operating life of the
facility; an estimate of the maximum inventory of wastes ever on site over the
active life of the facility; a schedule for completing all activities; and, a
site plan of the landfill showing the proposed final elevations. The plan may
be amended at any time during the active life of the facility with Department
approval. The plan shall be amended whenever changes in operating plans or
facility design affect the closure plan, or whenever there is a change in the
expected year of closure;
(10)
Detailed post-closure plan in accordance with Section J. of this Part. This
plan may address, but not be limited to, groundwater monitoring, landfill gas
monitoring and maintenance of the integrity and effectiveness of the final
cover including future use of the site.
c. South Carolina Coastal Zone Management
Plan. The proposed landfill project shall be consistent with the South Carolina
Coastal Zone Management Plan, if the landfill is located in the coastal zone as
defined in accordance with the Coastal Zone Management Act.