Regulations: Title 27, Environmental Protection--Division 2, Solid Waste

Chapter 3. Criteria for All Waste Management Units, Facilities, and Disposal Sites

Subchapter 4. Criteria for Landfills and Disposal Sites

Article 1. CIWMB - Operating Criteria

(a) Each site operator shall maintain records of weights or volumes accepted in a form and manner approved by the EA. Such records shall be submitted to the EA upon request, accurate to within 10 percent and adequate for overall planning purposes and forecasting the rate of site filling.

(b) Each site operator shall maintain records of excavations which may affect the safe and proper operation of the site or cause damage to adjoining properties.

(c) Each site operator shall maintain a daily log book or file of the following information: fires, landslides, earthquake damage, unusual and sudden settlement, injury and property damage accidents, explosions, receipt or rejection of unpermitted wastes, flooding, and other unusual occurrences.

(d) Each site operator shall maintain a record of personnel training as required in section 20610.

(e) Each site operator shall maintain a copy of written notification to the EA, local health agency, and fire authority of names, addresses and telephone numbers of the operator or responsible party of the site as required in section 20615.

(f) Disposal site records, including MSWLF unit records, shall be available for inspection by authorized representatives of the EA, the local health agency and the CIWMB during normal business hours and retained near the site in an operating record or in an alternative location approved by the EA.

(g) Each site shall maintain records for the Disposal Reporting System as required by Title 14 California Code of Regulations section 18800 et seq.

Note:

Authority cited: 
Section 40502 Public Resources Code. 

Reference: 
Sections 43020, 43021 and 43103, Public Resources Code.

(a) The owner or operator of a MSWLF unit must record the following information as it becomes available:

(1) Any location restriction demonstration required under section 20270;

(2) Inspection records, training procedures, and notification procedures required in section 20870;

(3) Gas monitoring results from monitoring and any remediation plans required by section 20919 of this Subchapter;

(4) Closure and postclosure maintenance plans as required by section 21780, notice of intent to close the unit as described in section 21135, notice of certification of closure as required by section 21880, deed notation as required by section 21170, demonstration of release from postclosure maintenance required by section 21180, and any gas monitoring, testing, or analytical data as required by 40 CFR section 258.61; and

(5) Any cost estimates and financial assurance documentation required by sections 22221, 22226, 21820, and 21840.

(6) Any information demonstrating compliance with the small community exemption as required by 40 CFR section 258.1(f)(2).

(b) The owner/operator must notify the EA when the documents from (a) of this section have been placed in or added to the operating record, unless an alternative frequency is approved as specified in (c) and all information contained in the operating record must be furnished upon request to the EA.

(c) The EA may set alternative schedules for record keeping and notification requirements as specified in (a) and (b) of this section, except for the notification requirements in Section 20270.

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference: 
Section 40508 and 43103, Public Resources Code; and Title 40, Code of Federal Regulations, Section 258.29.

Approvals, determinations and other requirements the EA is authorized to make under this Subchapter shall be documented in writing to the operator and placed in the operating record by the operator.

Note:

Authority cited:
Section 40502 Public Resources Code. 

Reference: 
Section 40508 and 43103, Public Resources Code.

(a) Each point of access from a public road shall be posted with an easily visible sign indicating the facility name, and other pertinent information as required by the EA.

(b) If the site is open to the public, there shall be an easily visible sign at the primary entrance of the site indicating the name of the site operator, the operator’s telephone number, and, hours of operation; an easily visible sign at an appropriate point shall indicate the schedule of charges and the general types of materials which either (1) WILL be accepted or (2) WILL NOT be accepted.

(c) If the site is open to the public, there shall be easily visible road signs and/or traffic control measures which direct traffic to the active face and other areas where wastes or recyclable materials will be deposited.

(d) Additional signs and/or measures may be required at a disposal site by the EA to protect personnel and public health and safety.

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference:
 Sections 43020, 43021 and 43103, Public Resources Code.

The site shall be designed to discourage unauthorized access by persons and vehicles by using a perimeter barrier or topographic constraints. Areas within the site where open storage or ponding of hazardous materials occurs shall be separately fenced or otherwise secured as determined by the EA. The EA may also require that other areas of the site be fenced to create an appropriate level of security.

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Roads within the permitted facility boundary shall be designed to minimize the generation of dust and the tracking of material onto adjacent public roads. Such roads shall be kept in safe condition and maintained such that vehicle access and unloading can be conducted during inclement weather.

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Sanitary facilities, consisting of an adequate number of toilets and handwashing facilities, shall be available to personnel at or in the immediate vicinity of the site as approved by the EA.

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Safe and adequate drinking water for the site personnel shall be available.

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Each site shall have communication facilities available to site personnel to allow quick response to emergencies.

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Where operations are conducted during hours of darkness, the site and/or equipment shall be equipped with adequate lighting as approved by the enforcement agency to ensure safety and to monitor the effectiveness of operations.

Note:

Authority cited: 
Section 40502,  Public Resources Code. 

Reference: 
Sections 43020, 43021 and 43103, Public Resources Code.

Operating and maintenance personnel shall wear and use appropriate safety equipment as required by the EA.

Note:

Authority cited:
Section 40502,  Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Personnel assigned to operate the site shall be adequately trained in subjects pertinent to the site operation and maintenance, including requirements of this chapter, hazardous materials recognition and screening, and heavy equipment operations, with emphasis on safety, health, environmental controls and emergency procedures. A record of such training shall be placed in the operating record.

Note:

Authority cited:
Section 40502,  Public Resources Code.

Reference: 
Sections 43020, 43021 and 43103, Public Resources Code.

The site operator shall provide adequate supervision of a sufficient number of qualified personnel to ensure proper operation of the site in compliance with all applicable laws, regulations, permit conditions and other requirements. The operator shall notify the enforcement agency and local health agency in writing of the names, addresses, and telephone number of the operator or responsible party. A copy of the written notification shall be placed in the operating record.

Note:

Authority cited:
Section 40502,  Public Resources Code.

Reference: 
Sections 43020, 43021 and 43103, Public Resources Code.

Any disposal site open to the public shall have an attendant present during public operating hours or the site shall be inspected by the operator on a regularly scheduled basis, as determined by the enforcement agency.

Note:

Authority cited:
Section 40502,  Public Resources Code.

Reference: 
Sections 43020, 43021 and 43103, Public Resources Code.

Unloading of solid wastes shall be confined to as small an area as possible to accommodate the number of vehicles using the area without resulting in traffic, personnel, or public safety hazards. Waste materials shall normally be deposited at the toe of the fill, or as otherwise approved by the enforcement agency.

Note:

Authority cited:
Section 40502,  Public Resources Code.

Reference: 
Sections 43020, 43021 and 43103, Public Resources Code.

Solid waste shall be spread and compacted in layers with repeated passages of the landfill equipment to minimize voids within the cell and maximize compaction. The loose layer shall not exceed a depth of approximately two feet before compaction. Spreading and compacting shall be accomplished as rapidly as practicable, unless otherwise approved by the enforcement agency.

Note:

Authority cited:
Section 40502, Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Covered surfaces of the disposal area shall be graded to promote lateral runoff of precipitation and to prevent ponding. Grades shall be established of sufficient slopes to account for future settlement of the fill surface. Other effective maintenance methods may be allowed by the enforcement agency.

Note:

Authority cited:
Section 40502,  Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Cover material or native material unsuitable for cover, stockpiled on the site for use or removal, shall be placed so as not to cause problems or interfere with unloading, spreading, compacting, access, safety, drainage, or other operations.

Note:

Authority cited:
Section 40502, Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

Article 2. CIWMB - Daily and Intermediate Cover

A sufficient quantity of cover material of a suitable quality to meet the requirements of this Subchapter shall be available. If on-site sources of cover material are insufficient, substantiation must be shown to the EA that an adequate supply of cover material will be provided.

Note:

Authority cited:
Section 40502, Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

(a) Except as provided in ¶(b), and (f) and Section 20690, the owners or operators of all municipal solid waste landfill units shall cover disposed solid waste with a minimum of six inches of compacted earthen material at the end of each operating day, or at more frequent intervals if necessary, to control vectors, fires, odors, blowing litter, and scavenging. For the purposes of this section, the operating day shall be defined as the hours of operation specified in the solid waste facility permit, and may extend for more than 24 hours if operations are continuous.

(b) The EA, with concurrence by the CIWMB, may grant a temporary waiver from the requirements of (a) if the owner or operator demonstrates that there are extreme seasonal climatic conditions that make meeting such requirements impractical.

(c) Earthen material or alternative cover materials of alternative thickness shall be placed over all surfaces of disposed solid waste for other than municipal solid waste landfill units, as required by the EA to control vectors, fires, odors, blowing litter, and scavenging without presenting a threat to human health and the environment.

(d) For the purposes of this section, earthen material shall include contaminated soil as defined in Title 14, California Code of Regulations, Section 17361(b), and soil with contaminants other than petroleum hydrocarbons which has been approved for use as landfill daily cover by the RWQCB, and any other governmental agencies from which approval is required, such as the Department of Toxic Substances Control and Air Pollution Control District or Air Quality Management District.

(e) For waste classification, composition, and liquid percolation requirements of daily cover, refer to the SWRCB requirements set forth in Section 20705 of this article.

(f) For those MSWLF's that accept for disposal 20 tons or less of municipal solid waste per day based on an annual average, the EA, with concurrence by the Board, may establish alternative frequencies for daily cover after consideration of the unique characteristics of small communities, climatic and hydrogeologic conditions, and protect of human health and the environment.  Any proposal to allow an alternative frequency shall be available for public review for a minimum of 30 days to allow affected parties the opportunity to comment.  Documentation of the considerations, public comment, and Board concurrence for any alternative frequency shall be placed in the operating record. The Executive Director or the EA may condition. limit, suspend, or terminate an operator's use of an alternative monitoring frequency if it is determined that the alternative frequency would cause harm to public health and safety, or the environment. 

Note:

Authority cited:
Section 40502, 42245, 43020, 43021, 43030 Public Resources Code.

Reference: 
Sections 40508, 43020, 43021 and 43103, Public Resources Code; and Code of Federal Regulations Section 258.21(c).

Beneficial reuse of solid wastes at a solid waste landfill shall include, but not be limited to, the following: alternative daily cover, alternative intermediate cover, final cover foundation layer, liner operations layer, leachate and landfill gas collection system, construction fill, road base, wet weather operations pads and access roads, and soil amendments for erosion control and landscaping. Alternative daily cover reuse shall comply with the requirements of section 20690. Alternative intermediate cover reuse shall comply with the requirements of section 20700. Other beneficial reuse shall comply with the following requirements:

(a) Beneficial reuse shall be restricted to those solid wastes appropriate for the specific use and in accordance with engineering, industry guidelines, or other standard practices specified in the Report of Disposal Site Information as required by section 21600(b)(6).

(b) Beneficial reuse shall be restricted to quantities of solid wastes no more than necessary to meet the minimum requirements of (a). Should the CIWMB determine that an owner or operator violated this standard, the owner or operator shall revise the applicable reports to reflect the overuse as disposal, and pay the required Board of Equalization (BOE) disposal tipping fees for the amount of overuse.

(c) Storage and handling of solid waste and derived materials for beneficial reuse shall be conducted in a manner to protect public health and safety and the environment, and control vectors, fires, odors, and nuisances.

(d) The owner or operator shall maintain a record of beneficial reuse in accordance with Title 14, California Code of Regulations, section 18800 et seq. The records shall be available for inspection by authorized representatives of the EA, the local health agency, and the CIWMB during normal business hours and retained in the operating record near the site or in an alternative location approved by the EA.

Note:

Authority cited:
Section 40502, 41781.3, 43020, 43021, 43030 and 43103, Public Resources Code.

Reference: 
Sections 40508, 42245, 43020 and 43021, Public Resources Code; and Title 40 Code of Federal Regulations Section 258.21.

(a) General Requirements

(1) Alternative materials of alternative thickness for daily cover (other than at least six inches of earthen material) for municipal solid waste landfill units may be approved by the EA with concurrence by the CIWMB, if the owner or operator demonstrates that the alternative material and thickness control vectors, fires, odors, blowing litter, and scavenging without presenting a threat to human health and the environment.

(2) Alternative daily cover alone, or in combination with compacted earthen material, shall be placed over the entire working face at the end of each operating day or at more frequent intervals to control vectors, fires, odors, blowing litter, and scavenging without presenting a threat to human health and the environment. For the purposes of this section, the operating day shall be defined as the hours of operation specified in the solid waste facility permit, and may extend for more than 24 hours if operations are continuous. Waste-derived alternative daily cover shall be processed prior to spreading and compacting on the working face and applied and compacted to ensure that all exposed waste is completely covered by ADC and that there are no open voids within the cover material or in contact with the underlying wastes. Waste materials used as ADC that already meet the grain-size specifications of these regulations, or an alternative grain size approved by the EA and CIWMB pursuant to this section, need not be processed if the EA determines that the material as received at the landfill is adequate to perform the functions of daily cover and meets the appropriate specifications.

(3) Should the application of alternative daily cover become impracticable or contribute to conditions hazardous to public health and safety and the environment, the owner or operator shall terminate such use and revert to the use of compacted earthen cover material in accordance with section 20680. For the purposes of this section, impracticable conditions are those which make placement of alternative daily cover difficult due to adverse climatic or other conditions such that the performance requirements of (a)(2) cannot be met.

(4) The owner or operator shall place compacted earthen material over the entire working face at the end of any operating day preceding a period of time greater than 24 hours when the facility is closed, unless procedures as required by the EA are in place to ensure that the requirements of (a)(2) and (a)(3) are met. A stockpile of earthen cover material and required equipment shall be available to ensure a corrective response to violation of (a)(2) and (a)(3). Whenever an EA determines that an application of ADC is not meeting the requirements of this standard, the EA may direct the operator to immediately cover the ADC with soil. The continuing use of ADC that has been determined by the EA as not meeting the requirements of this section may become the basis for the EA to take enforcement action to seek compliance with the requirements of this section.

(5) The owner or operator shall maintain a record of waste derived alternative daily cover in accordance with Title 14, California Code of Regulations, section 18800 et. seq. The records shall be available for inspection by authorized representatives of the EA, the local health agency, and the CIWMB during normal business hours and retained in the operating record near the site or in an alternative location approved by the EA.

(6) For waste classification, composition, and liquid percolation requirements of alternative daily cover, refer to the SWRCB requirements set forth in section 20705.

(7) Waste derived materials used as alternative daily cover shall be restricted to quantities no more than necessary to meet the performance requirements of ¶(a)(2), or as specified in subdivision (b) of this section. Should the CIWMB determine after consulting with the EA that an owner or operator violated this standard, the owner or operator shall revise the applicable reports to reflect the overuse as disposal, and pay the required Board of Equalization (BOE) disposal tipping fees for the amount of overuse. EAs shall not be responsible for making such determinations.

(8) Compost, co-compost, and chemically fixed sewage sludge and water treatment sludge only, that meet the performance standards for cover material, shall be limited to up to 25 percent of landfill cover materials or landfill cover extenders as required under Public Resources Code (PRC) 42245. For the purposes of this section, "chemically fixed sewage sludge" means solid and semisolid residue generated during the treatment of domestic sewage. The 25 percent limit shall apply on a quarterly basis to the total daily and intermediate cover or cover extender use. For the purposes of this section, landfill cover extenders shall mean compost, co-compost, or chemically fixed sewage sludge blended or mixed with soil.

(9) Storage and handling of waste derived materials at the landfill for use as alternative daily cover shall be conducted in a manner to protect public health and safety and the environment, and control vectors, fires, odors, blowing litter, scavenging, and nuisances.

(10) The EA shall apply this section to disposal facilities other than municipal solid waste landfill units as necessary to control vectors, fires, odors, blowing litter, scavenging, and nuisances without presenting a threat to human health and the environment. This requirement shall also apply to municipal solid waste landfills which qualify for a delay in the general compliance date or additional flexibility as specified in 40 CFR Part 258.

(11) The owner or operator shall implement a program described in the Report of Disposal Site Information as required by section 21600(b)(6) to minimize contamination of alternative daily cover with wastes not included within the individual alternative daily cover material types specified in subdivision (b) of this section and wastes that would conflict with the performance requirements of (a)(2).

(b) Specific Requirements

All types of ADC must be approved by the EA in writing prior to use at solid waste landfills as consistent with Title 27, California Code of Regulations, section 21570 through section 21686. Proposed uses of alternative daily cover materials not specified shall be subject to site specific demonstration projects approved by the EA with concurrence by the CIWMB to establish suitability as daily cover. Unless otherwise specified in this section, alternative daily cover use by blending listed materials other than using side-by-side on the working face, or layering on top of one another listed materials, shall require site-specific demonstration projects approved by the EA with concurrence by the CIWMB as required by subsection (a)(1). Site specific demonstration projects are not required for the following materials used as specified and in accordance with subdivision (a) of this section.

(1) Geosynthetic Fabric or Panel Products (Blankets)

(A) Geosynthetic blanket products shall be removed from the waste and the waste shall be covered with new waste or approved cover materials within 24 hours of product placement, unless the product is intended to be nonreusable, or has been approved by the EA for continuous use beyond 24 hours.

(2) Foam Products

(A) Foam products shall not be applied when there is precipitation or when there is a local forecast of greater than 40% chance of precipitation within 8 hours of application time in the vicinity of the landfill.

(B) Foam products shall be covered with waste or other approved cover materials within 72 hours of application, unless a shorter time period is required by the EA to meet the requirements of ¶(a)(2) and (a)(3) of this section.

(3) Processed Green Material

(A) For the purposes of this section, processed green material means any plant material that is either separated at the point of generation, or separated at a centralized facility that employs methods to minimize contamination. Green material includes, but is not limited to, yard trimmings, untreated wood wastes, paper products, and natural fiber products. Green material does not include treated wood waste, mixed demolition or mixed construction debris, manure and plant waste from the food processing industry, alone or blended with soil. Processed green material may include varying proportions of wood waste from urban and other sources and shall be ground, shredded, screened, source separated for grain size, or otherwise processed.

(B) Green material used for alternative daily cover shall be processed prior to being applied to the working face unless the green material to be used as alternative daily cover already meets the grain size specifications. Prior to spreading and compacting on the working face, processed green material shall comply with a grain size specification by volume of 95 percent less than 6 inches. Alternative processing and grain size specification requirements may be approved by the EA if the EA determines that the alternative meets the performance requirements of ¶(a)(2) and (a)(3) of this section and the CIWMB concurs.

(C) Processed green material shall be restricted to a minimum compacted thickness of 6 inches and average compacted thickness of less than or equal to 12 inches.

(D) Processed green material placed as cover shall not be exposed for greater than 21 days.

(4) Sludge and Sludge-Derived Materials

(A) Public contact with sludge or sludge-derived materials, either alone or blended with soil, ash, processed green material, or stabilization agents such as lime, lime kiln dust, or cement kiln dust, shall be prohibited. This prohibition shall apply to staging, processing, tipping, and cover placement areas.

(B) Sludge or sludge-derived materials, either alone or blended with soil, processed green material, ash, or stabilization agents such as lime, lime kiln dust, or cement kiln dust, shall form a compacted material which can be placed without forming open voids or causing material to be tracked off the working face area.

(C) Sludge or sludge-derived materials shall be restricted to a minimum of less than or equal to 12 inches.

(5) Ash and Cement Kiln Dust Materials

(A) Ash and Cement Kiln Dust, either alone or blended with earthen material or stabilization agents, shall form a compacted material which can be placed without forming open voids or causing material to be tracked off the working face area. For the purposes of this section ash means the nonhazardous residue from the combustion of material or the hazardous residue which may be managed as a nonhazardous waste in accordance with Title 22 California Code of Regulations sections 66260.200(f) or 66260.210.

(B) Ash and Cement Kiln Dust, either alone or blended with earthen material or stabilization agents shall be used as alternative daily cover in a manner to minimize the creation of dust.

(C) Ash and Cement Kiln Dust, either alone or blended with earthen material or stabilization agents, shall be restricted to a minimum compacted thickness of 6 inches and average compacted thickness of less than 12 inches.

(6) Treated Auto Shredder Waste

(A) Auto shredder waste shall be treated pursuant Title 22, California Code of Regulations, section 66268.106(a)(1).

(B) Treated auto shredder waste used for alternative daily cover shall be restricted to a minimum compacted thickness of 6 inches and average compacted thickness of less than 24 inches.

(7) Contaminated Sediment, Dredge Spoils, Foundry Sands, Energy Resource Exploration and Production Wastes

(A) Contaminated sediment, dewatered dredge spoils, foundry sands, or processed energy resource exploration and production wastes shall be restricted to a minimum compacted thickness of 6 inches and average compacted thickness of less than 12 inches. Such materials shall form a compacted material which can be placed without forming open voids or causing material to be tracked off the working face area.

(8) Compost Materials

(A) Except as provided in ¶(b)(8)(B), of this section, compost shall meet the environmental health standards of Title 14, California Code of Regulations, Division 7, Chapter 3.1, Article 7.

(B) Public contact shall be precluded from cover staging, processing, tipping, and placement areas for compost which does not meet the environmental health standards of Title 14, California Code of Regulations, Division 7, Chapter 3.1, Article 7.

(C) Compost materials shall be restricted to a minimum compacted thickness of 6 inches and average compacted thickness of less than or equal to 12 inches. Compost materials shall comply with a grain size specification by volume of 95 percent less than 6 inches.

(9) Processed Construction and Demolition Wastes and Materials

(A) Processed construction and demolition wastes and materials shall be ground, pulverized, shredded, screened, source separated, or otherwise processed, alone or mixed with soil in a manner to provide a compacted material free of open voids when applied to meet the performance requirements as alternative daily cover.

(B) Processed construction and demolition wastes and materials used as alternative daily cover shall be restricted to the following materials: rock, concrete, brick, sand, soil, ceramics, cured asphalt, lumber and wood, wood products, roofing material, plastic pipe, plant material when commingled from construction work, and fines derived from processing the above materials.

(C) Construction and demolition wastes shall be processed prior to being applied to the working face. Prior to spreading and compacting on the working face, these materials shall comply with a grain size specification by volume of 95 percent less than 12 inches and 50 percent less than 6 inches as determined by the EA. The CIWMB shall provide technical assistance in making this determination if requested by the EA. Alternative processing and grain size specification requirements may be approved by the EA if the EA determines that the alternative meets the performance requirements of ¶(a)(2) and (a)(3) of this section and the CIWMB concurs.

(D) Construction and demolition wastes shall be restricted to a minimum compacted thickness of 6 inches and average compacted thickness of less than 18 inches.

(10) Shredded Tires

(A) Shredded tires used as daily cover alone or mixed with soil shall be shredded such that 50% by volume is smaller than 6 inches in length and no individual pieces are greater than 12 inches in length.

(B) Shredded tires used as alternative daily cover without admixed soil shall not be applied when there is precipitation or when there is a local forecast of greater than 40% chance of precipitation within 8 hours of application time in the vicinity of the landfill.

(11) Spray Applied Cementitious Products

(A) Such products shall not be applied when there is a local forecast of greater than 40 percent chance of precipitation within 8 hours of application time in the vicinity of the landfill.

Note:

Authority cited:
Section 40502, 41781.3, 43020, 43021, 43030 and 43103 Public Resources Code.

Reference:
Sections 40508, 42245, 43020 and 43021 Public Resources Code; and Title 40 Code of Federal Regulations Section 258.21.

The EA may require the following cover performance standards if necessary to control vectors, fires, odors, and blowing litter and to evaluate the suitability of alternative daily or intermediate cover:

(a) Vectors

(1) Threshold Values-The following shall constitute threshold values for vector populations:

(A) Flies-A fly grill survey value of six (6) or more domestic flies, or observations of domestic flies in the "crawler" stage (newly emerged adults prior to wings becoming functional) at a density of three (3) or more per square yard of surface area at any location on the disposal area. Domestic flies are considered to be those species in the Families: Muscidae (including Anthomyiidae), Calliphoridae, Sarcophagidae, and Drosophilidae.

(B) Domestic Rats-The trapping of one or more domestic rats anywhere on the disposal site. Domestic rats are considered to be any species in the genus Rattus.

(C) Field Rodents-Observation of five (5) or more field rodents feeding on the active face of the disposal site. Field rodents are considered to be any species in the Family Sciuridae.

(D) Mosquitoes-The observation of any immature mosquito stages from water holding waste materials on the disposal site.

(E) Wasps, cockroaches, etc.-The observation of excessive populations utilizing accepted norms.

(2) Inspection Practices

(A) Schedule-Fly grill surveys shall be conducted on each disposal site a minimum of once per week. Sampling to determine the species composition of the fly population shall be conducted a minimum of once per month. Rat trapping surveys shall be conducted at least once each month. Observations for mosquitoes, wasps, cockroaches, "crawler" flies or other types of vectors shall be made during each inspection of the disposal site. The EA may approve alternative inspection schedules or cease inspections if previous inspections or other observations indicate no further threat to public health and safety.

(B) Procedure-Ten (10) fly grill counts shall be made over appropriate attractants on the active face of the disposal site during each inspection utilizing accepted practices to count and record the flies. The five (5) highest counts shall be averaged to obtain the value for that inspection. In sampling to provide qualitative data for the fly species composition on a disposal site, any of the following or other acceptable method for sampling adult flies shall be observed:

-bait traps, exposed for at least a continuous 24-hour period at separate locations, or

-sticky tapes, exposed for a continuous 24-hour period at separate locations, or

-utilization of a standard insect net on the active working face, or

-other approved method to provide a representative sample.

For uniformity of information, one of the approved methods shall be selected for use on a continuing basis at each disposal site.

A minimum of two (2) domestic rat trap lines each containing twenty (20) traps shall be operated for one night on each disposal site at the prescribed frequency. Traps appropriately baited, shall be set at 20-foot intervals in each trap line. One trap line shall be located on or as close to the active face as practical. The other trap line shall be located on the periphery of the site in suitable rodent habitat. On very large sites additional trap lines will be required to provide an adequate sample. Visual observations of field rodents or their signs shall be made and recorded during each inspection.

(C) Equipment-All fly surveys conducted on the active face of the disposal site shall be made with a Scudder fly grill. This device is a square grill consisting of 24 slats, each 3' * 3/4" * ¼" placed 3/4" apart on a z.-shaped framework. Species composition of fly populations at the site shall be made with the use of fly traps, sticky tapes, an insect net, or other approved method to provide a representative sample. Snap traps or live traps, or a combination thereof, of suitable size and design shall be used to capture mature domestic rats.

(D) Records-The following information shall be recorded at a minimum during each inspection: Name of site; location; date of inspection; name of person(s) making the inspection; the time the inspection began; the time the inspection ended; temperature; wind conditions; moisture conditions; sky conditions; shade; attractants, when applicable; results of the 10 Scudder grill counts; number and species of all flies captured; number of domestic rats trapped since the previous inspection; number of field rodents observed (or signs of their presence), and the presence of any mosquitoes, wasps, cockroaches, or other types of vectors.

These records shall be kept up to date and shall be submitted to the EA upon request.

(b) Fire

Burning material, or any solid waste at a temperature likely to cause fire, shall not be deposited in the fill. Said material shall initially be deposited in a separate location a sufficient distance from the fill area to prevent fires from spreading to the normal fill area. It shall then be spread in a single layer not exceeding one (1) foot in thickness and immediately covered with a sufficient amount of earth or sprayed with sufficient fire retardant to extinguish all combustion. Final disposition of the material shall not take place until the operator is certain that no further combustion will take place under any conditions.

Fires which originate within the fill shall be handled by removing all the burning material from the fill and extinguishing it as described above, or by in-situ practices approved by the EA, in consultation with the local fire authority. Excavation of burning materials shall be undertaken in a planned and controlled manner; with sufficient fire fighting equipment present to control any "flare-ups" which may occur as outside air reaches the burning materials. The EA shall be immediately notified of any fire.

(c) Litter 

Accumulation or offsite migration of litter in quantities that create a nuisance, injury to the public and personnel, or cause other problems, shall be prevented.

(d) Alternative Methods

Alternative cover performance standards in lieu of ¶(a) through (c) of this section may be applied by the EA with concurrence by the CIWMB.

Note:

Authority Cited:
Section 40502, 41781.3, Public Resources Code.

 Reference:
Sections 40508, 43020, 43021 and 43103, Public Resources Code; and Code of Federal Regulations Section 258.21.

(a) Compacted earthen material at least twelve (12) inches shall be placed on all surfaces of the fill where no additional solid waste will be deposited within 180 days to control vectors, fires, odors, blowing litter, and scavenging.

(b) Alternative materials of alternative thickness (other than at least twelve inches of earthen material) for intermediate cover may be approved by the EA with concurrence by the CIWMB, if the owner or operator demonstrates that the alternative material and thickness control vectors, fires, odors, blowing litter, and scavenging without presenting a threat to human health and the environment.

(c) For waste classification, composition, and liquid percolation requirements of intermediate cover and alternative intermediate cover, refer to the SWRCB requirements set forth in section 20705 of this article.

(d) Proposed use of alternative intermediate cover shall be subject to site specific demonstration to establish suitability as intermediate cover. Demonstration projects shall be approved by the EA with concurrence by the CIWMB.

Note:

Authority Cited:
Section 40502, 41781.3, Public Resources Code.

Reference:
Sections 40508, 43020, 43021 and 43103, Public Resources Code; and Code of Federal Regulations Section 258.21.

CIWMB - Slope Stability of Daily and Intermediate Cover. (T14:Section 17678) - [Reserved]

Note:

Authority cited:
Section 40502 Public Resources Code.

Reference:
Sections 43020, 43021 and 43103, Public Resources Code.

[Note: This section applies in conjunction with CIWMB sections 20680-20701 and addresses cover issues prior to the installation of the final cover. Readers interested in the SWRCB-promulgated requirements for final cover will find them at section 21090.]

(a) Daily & Intermediate-Interim cover at landfills is "daily cover" and "intermediate cover" as defined by the CIWMB (see Section 20164).

(b) Minimize Percolation-Interim cover over wastes discharged to a landfill shall be designed and constructed to minimize percolation of liquids through wastes.

(c) For Class II Waste Piles-Cover may be required by RWQCBs for Class II wastes piles.

(d) [Reserved]

(e) Limitations On Cover Materials-Except for reusable covers that are never incorporated into the Unit, daily and intermediate cover shall only consist of materials:

(1) Match Unit Classification-which meet the classification criteria for wastes that can be discharged to that landfill. Therefore, a material that would be classified as a designated waste cannot be utilized for daily or intermediate cover at a Class III landfill unless that material is approved for discharge (as a waste) to that landfill pursuant to Section 20200(a)(1); and

(2) Composition-whose constituents (other than water) and foreseeable breakdown byproducts, under the chemical (including biochemical) and temperature conditions which it is likely to encounter within the landfill, either:

(A) for non-composite lined portions of the Unit, are mobilizable only at concentrations which would not adversely affect beneficial uses of waters of the state, in the event of a release; or

(B) for composite-lined portions of the Unit, are listed as COCs in the Unit's water quality protection standard (Water Standard), created pursuant to Section 20395.

(f) Dust Control-The requirements of Section 21090(a)(5) regarding the discharge of leachate, gas condensate, and other liquids to final-covered portions of the Unit also apply to the discharge of liquids to daily and intermediate cover, including discharges made for the purpose of dust control.

Note:

Authority cited:
Section 1058, Water Code;

Reference:
Sections 13172 and 13360, Water Code; Section 43103, Public Resources Code.

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Last updated: March 21, 2008