Iowa Administrative Code › Agency 567 - Environmental Protection Commission › Title VIII - Solid Waste Management and Disposal › Chapter 115 - Sanitary Landfills: Industrial Monofills › Rule 567-115.26 - General Requirements for All Sanitary Landfills

Current through Register Vol. 47, No. 3, July 24, 2024
(1)
Plan requirements.
The
				plans for all sanitary landfills shall include the following:
a. The map and aerial photograph required in
				subrule 115.13(3) of sufficient scale to show all homes, buildings, lakes,
				ponds, watercourses, wetlands, dry runs, rock outcroppings, roads and other
				applicable details including topography and drainage patterns. All wells shall
				be identified on the map or aerial photograph and a bench mark shall be
				indicated.
b. A plot drawing in
				appropriate scale of the site and the immediately adjacent area showing
				dimensions, topography with appropriate contour intervals, drainage patterns,
				known existing drainage tiles, locations where any geologic samples were taken,
				all water wells with their uses, and present and planned pertinent features
				including but not limited to roads, fencing, and cover stockpiles.
c. Detailed engineering drawing of the site
				showing all initial and permanent roads, buildings and equipment to be
				installed; unloading and holding areas; fences and gates; landscaping and
				screening devices; personnel and maintenance facilities; and sewer and water
				lines.
d. A liner system that meets
				the following requirements, depending upon the type of waste material disposed
				of:
(1) Municipal solid waste landfills
				(MSWLFs) shall have a composite liner system consisting of two components. The
				upper component must consist of a minimum 30-mil flexible membrane liner (FML),
				and the lower component must consist of at least a two-foot layer of compacted
				soil as specified in subparagraph 115.26(1)
"d"
(2). FML
				components consisting of high-density polyethylene (HDPE) shall be at least
				60-mil thick. The FML must be installed in direct and uniform contact with the
				compacted soil component. The requirements for MSWLF facilities under this
				subparagraph were effective November 13, 1996, and apply to liner and cover
				systems that had not been installed by that date.
(2) Nonmunicipal solid waste landfills may
				utilize a liner system meeting 115.26(1)
"d"
(1) or shall have
				a soil liner consisting of at least four feet of recompacted soil. The
				description, source and volume of the material to be used for the landfill
				liner, including the method of installation, must be provided. The coefficient
				of permeability must be 1 x 10-7cm/sec (0.00028
				ft/day) or less as determined by appropriate laboratory analysis. The percent
				of standard or modified proctor density at moisture contents consistent with
				expected field conditions and corresponding to a measured coefficient of
				permeability equal to or less than 1 x 10-7cm/sec
				shall be determined in the laboratory. The soil shall be placed in lifts not to
				exceed 8 inches in thickness. A minimum of one field density test shall be
				performed per lift per acre to verify that the density determined by the
				laboratory analysis as correlated to permeability has been achieved. Results of
				field density tests shall be submitted to the department prior to the placement
				of solid waste.
e.
				Alternative liner systems.
(1) The department
				may approve an alternative to the liner system specified in subparagraph
				115.26(1)
"d"
(1) provided that the alternative liner system
				design has included certification by a professional engineer registered in Iowa
				stating that the proposed alternative liner system will ensure that the
				contaminant concentration values listed in federal regulations under 40 CFR
				258, Subpart D, Table 1, will not be exceeded in the uppermost aquifer at the
				designated monitoring points of compliance as specified by the department.
This point of compliance shall be no more than 150 meters
				  from the waste management boundary. This point of compliance is to be utilized
				  for the purpose of certifying the alternative design only. All operational
				  issues related to monitoring systems, compliance determinations, groundwater
				  assessments, and remedial measures are governed by the appropriate relevant
				  rules in this chapter and 567-Chapter 111. The certification shall be on a form
				  furnished by the department which shall include space for identification of the
				  sources of data utilized; formulas, models, tests or other methods utilized to
				  determine contaminant concentrations at the points of compliance; and all
				  references or guidance documents relied upon for the techniques or methods
				  applied. A copy of all data utilized, formulas, models, tests or other methods
				  utilized to determine contaminant concentrations at the point of compliance
				  shall be placed in the facility's official files prior to operation of the
				  landfill.
(2) An
				alternative liner system to that required in subparagraph
				115.26(1)
"d"
(2) may be approved by the director if the design
				of the liner system is equivalent to the soil liner required in subparagraph
				115.26(1)
"d"(2)
in performance, longevity and protection of
				the groundwater; or based on the specific type of waste to be disposed of, the
				design of the liner system offers equivalent protection of the groundwater.
				Undisturbed soil will not be allowed for use as liner material.
f. Diversion and drainage
				structures designed to prevent ponding, infiltration, inundation, erosion,
				slope failure and washout from surface runoff due to a 25-year, 24-hour
				rainfall event, as shown in the department of agriculture and land stewardship
				publication "Climatology of Iowa Series #2-1980."
g. A leachate collection, storage and
				treatment and disposal system designed to protect the soils, surface water, and
				groundwater from leachate contamination. This system shall be designed to
				operate during the active life of the site and during the postclosure period
				required by Iowa Code section
				455B304..
(1) The design and construction of the system
				must be in accordance with subrule 115.26(3) and be coordinated with the
				planned phase development of the site and the timing of leachate
				generation.
(2) The potential for
				leachate generation shall be evaluated in determining the design for the
				facility.
(3) The plan must include
				proposed quality assurance and quality control testing to be performed during
				installation and operation of the system. This plan shall include procedures
				that will be followed during installation of the leachate collection system and
				during normal landfill operations to ensure the system's integrity and design
				standards.
h. A drawing
				of the scheme of development including any excavation, trenching, and fill
				shown progressively with time. The methods to be used to ensure compliance with
				the scheme and to provide vertical and horizontal controls shall be
				described.
i. Cross-sectional
				drawings showing progressively with time the original and proposed elevation of
				excavating, trenching, and fill.
j.
				Evidence that the proposed plan has been reviewed by the local soil
				conservation district commissioner and that the technical assistance of the
				soil conservation district will be utilized to facilitate compliance with wind
				and water soil loss limit regulations provided for in Iowa Code sections
				467A.42to 467A.51.
k. An ultimate
				land use proposal, including intermediate stages, with time schedules
				indicating the total and complete land use. Final elevations, grades, permanent
				drainage structures, monitoring or treatment facilities and permanent
				improvements of the completed landfill shall be included. Any supporting
				drawings to the ultimate land use proposal shall be in appropriate
				scale.
l. Information describing:
(1) Source, volume, and characteristics of
				cover material;
(2) Area of site in
				acres;
(3) Areas to be used for
				salvaging and the burning of diseased trees.
m. A report consisting of information
				verifying that the portion of the site to be filled is:
(1) So situated as to obviate any predictable
				lateral movement of significant quantities of leachate from the site to
				standing or flowing surface water or to shallow aquifers that are in actual use
				or are deemed to be of potential use as a water resource.
(2) So situated that the base of the proposed
				site is at least 5 feet above the high water table unless a greater separation
				is required to ensure that there will be no significant adverse effect on
				groundwater or surface waters or a lesser separation is unlikely to have a
				significant adverse effect on groundwater and surface waters.
(3) Outside a flood plain or shoreland,
				unless proper engineering and sealing of the site will render it acceptable and
				prior approval of the department under Title V of these rules and, when
				necessary, the U.S. Corps of Engineers is obtained.
(4) So situated to ensure no adverse effect
				on any well within 1,000 feet of the site existing at the time of application
				for the original permit which is being used or could be used without major
				renovation for human or livestock consumption or at least 1,000 feet from any
				such well unless hydrologic conditions are such that a greater distance is
				required to ensure no adverse effect on the well.
(5) So situated to ensure no adverse effect
				on the source of any community water system in existence at the time of
				application for the original permit within one mile of the site or at least one
				mile from the source of any community water system in existence at the time of
				application for the original permit unless hydrologic conditions are such that
				a greater distance is required to ensure no adverse effect on the water
				system.
(6) At least 20 feet from
				the adjacent property line unless there is a written agreement with the owner
				of the abutting property. The report shall verify that the portion to be filled
				is at least 50 feet from the adjacent property line. The written agreement
				shall be filed with the county recorder and shall become a permanent record of
				the property.
(7) Beyond 500 feet
				from any existing habitable residence unless there is written agreement with
				the owner of the residence and the site is screened by natural objects,
				plantings, fences or by other appropriate means. The residence must be in
				existence on the date of application for the original permit from the
				department. The written agreement shall be filed with the county recorder and
				recorded for abstract of title purposes, and a copy submitted to the
				department.
n. Should
				conditions in violation of 115.26(1)
"m"
(1), (2), (3), (4), or
				(5) exist, the original plan shall detail how the site is to be engineered to
				provide equivalent protection to the water resources. The applicant shall have
				the burden of showing that equivalent protection will be provided.
o. If sewage sludge is to be disposed of at
				the site, the characteristics of the sludge and the method of disposal shall be
				described. If sludge is to be utilized for land application, such utilization
				shall be in conformance with 567-Chapter 67.
p. The required soil and hydrogeologic design
				information specified in rules 115.14(455B) through 115.25(455B).
q. Such additional data and information as
				may be deemed necessary by the director to evaluate a proposed sanitary
				landfill.
r. When a new landfill or
				lateral expansion is located within 10,000 feet of any airport runway end used
				by turbojet aircraft or within 5,000 feet of any airport runway end used by
				only piston-type aircraft, the plan must contain a notice that the landfill's
				official files will include the following demonstration: that the site is
				designed and will be operated so that it does not pose a bird hazard to
				aircraft. For any new site or a lateral expansion within a five-mile radius of
				any airport runway end used for turbojet or piston-type aircraft, the plan must
				show that the Federal Aviation Administration has been notified. For existing
				landfills located within 10,000 feet of any airport runway end used by turbojet
				aircraft or within 5,000 feet of any runway end used by only piston-type
				aircraft, the owner or operator must prepare the demonstration required above
				in this paragraph and notify the director that it has been placed in the
				facility's official files.
s. When
				a new landfill or lateral expansion is located within 200 feet of a fault that
				has had displacement in Holocene time, the plan must contain a notice that the
				facility's official files will include the following demonstration: that an
				alternative setback distance of less than 200 feet will prevent damage to the
				structural integrity of the site and will be protective of human health and the
				environment.
t. When a new landfill
				or a lateral expansion is located in seismic impact zones, the plan must
				contain a notice that the facility's official files will include the following
				demonstration: that all containment structures, including liners, leachate
				collection systems, and surface water control systems, are designed to resist
				the maximum horizontal acceleration in the lithified earth material for the
				site.
u. When a new facility or
				lateral expansion is located in an unstable area, the plan must contain a
				notice that the facility's official files will include the following
				demonstration: that engineering measures have been incorporated into the site
				design to ensure that the integrity of the structural components of the site
				will not be disrupted. The demonstration must consider the on-site or local
				soil conditions that may result in significant differential settling, on-site
				or local geologic or geomorphologic features, and on-site or local human-made
				features or events (both surface and subsurface). For existing facilities
				located in an unstable area, the owner or operator must prepare the above
				demonstration required in this paragraph and notify the director that it has
				been placed in the facility's official files.