• 11/24 - Page uploaded from Word document Waste Draft 5.

    • GS general comment - Waste inspection included with placement (rather than weighbridge) to better reflect operational practice.

    • How is inspection of waste done? How often? How is it recorded? WasteMINZ TG provides detailed guidance for inspection frequencies depending on waste. (Chapt 6.4)

    • Details of Long-Term Fill Plan are light. The LMP refers to the plan, but Greg has been unable to locate an example. Where are they stored. What do they contain?

    • Similarly, the Daily Fill Plan details are light. Where are they stored. What do they contain?

    • LMP 2023 Chapter 4.3.3 is out of date. It refers to a bylaw no longer in force “Nelson City Council Consolidated Bylaw Part 2 – Refuse Collection and Disposal”. The authority comes from NTRLBU’s conditions if waste disposal. Is there a contract for this?

    • Is it appropriate to inspect all waste with manifest?

    • Should we include procedures for the unloading and placement of waste? Is appears to be a gap in the LMP.

    • Potential gap - Are there other safety controls that are required for the placement of waste e.g. PPE etc? Should they be covered here?

    • This may be a complex technical requirement - more guidance is needed on how safe disposal procedures are established.

    • RM975261-D(18) needs consideration given the landfill is already at RL170, but the clause refers to max height at RL160

    • Kim comment: “should we detail what we do if we find a load that does not match the weigh docket? Eg. Wrong waste category”

  • Please send updates, changes and comments to landfill@ncc.govt.nz

Placement & Inspection of Waste

Disclaimer: These procedures guide the operation of YVLF. They are intended as working documents that are improved through operational experience and updated accordingly. Please send updates, changes and comments to landfill@ncc.govt.nz

Flowchart

Procedure

    • The Long-Term Fill Plan is a strategic planning document which guides the placement of waste at the landfill developed by the NTRLBU and the Landfill Operator.

    • It sets out the proposed filling sequence based on:

      • The expected waste quantities and available space.

      • Landfill and tipping face access.

      • Waste stability.

      • Leachate and gas management

      • Efficient use of landfill heavy equipment (including Vehicle Movement Plan & Haul Roads for long term use).

      • Future expansion plans (& ESCP controls, site stabilisation)

      • Litter controls.

    • No refuse to be placed within 10m of the front face of the landfill at RL 145. [RM975261-D(18)]

    • The maximum height of the fill shall rise from RL145 at a setback of 10m from the front face to a maximum height of RL160, at a setback 40m from the front face of the landfill. [RM975261-D(18)]

    [Kim’s comment - Is this applicable now we are above RL170?]

    • Infilling at the site is to continue in a series of staged lifts, progressing up the valley sides of Gully 1 in a controlled fashion. [LMP 2023 Chapter 3.6]

    • The preferred lift height is 3m. This is to ensure that maximum use is made of the volume available for landfilling by keeping the amount of cover used to a practical minimum while providing sufficient barrier to minimise odours and prevent surface water infiltration. [LMP 2023 Chapter 4.7.3]

    • Temporary bunds shall be constructed in appropriate places (either along front face or at some intermediate position) to ensure that contaminated stormwater is not discharged off the operational area. [LMP 2023 Chapter 4.7.2]

    • The tipping face shall be a maximum of 500m2, generally 10m wide by 50m long, and on a working face of a slope of 1:3 (one vertically to three horizontally). [LMP 2023 Chapter 4.7.3]

    • All intermediate cover shall be removed from the surface of the active landfill cell prior to depositing refuse in the next layer. [LMP 2023 Chapter 4.7.2]

    • As filling progresses across areas of covered refuse the old cover layer shall be removed or disturbed to allow downward movement of leachate. [LMP 2023 Chapter 4.7.3]

    • Where fill abuts the side of the valley, faces will slope back into the landfill. These measures will minimise the possibility of leachate flow through the side of the landfill. Stormwater must always be directed away from the tipping face and away from turning and tipping areas. [LMP 2023 Chapter 4.7.3]

    • Daily Fill Plan, based on the Long-Term Fill Plan sets out the placement and design of lifts and cells and the filling sequence within those cells.

    • The Daily Fill Plan sets out any hazardous waste which will be received that day and the special disposal requirements for that waste.

    • The Daily Fill Plan is developed by the Landfill Operator.

    • The NTRLBU must document any special handling procedures that would be required by the enquirer and / or the Landfill Operator to ensure the health and safety of all parties and the protection of the environment. [LMP Appendix K.3]

      [GS - This may be a complex technical requirement - more guidance is needed on how safe disposal procedures are established.]

    • The method of disposal of special and hazardous wastes is of necessity based on the specific waste. The disposal method will consider the type of waste, volume, ability and suitability for disposal and the specific methods required at this site. [LMP 4.3.10.2]

    • The Landfill Contractor shall take all necessary Health & Safety precautions in handling wastes, including monitoring of workplace exposure to airborne substances where appropriate. [LMP 4.3.10.1]

    • Where wastes of a hazardous nature are accepted for disposal at YVLF, appropriate safety precautions will be observed and the location of the wastes within the landfill will be recorded by the Landfill Contractor. [LMP 4.3.10.2]

    • All empty Hazchem containers including Flammable 3 arriving at the landfill for disposal should be triple rinsed before being disposed of in the landfill. Containers greater than 20 litres capacity shall be crushed or cut up prior to landfilling. [LMP 4.3.10.2]

    • Hazardous wastes with a risk of generating aerosols [GS2] (such as asbestos etc) will be subject to additional controls such as:

      • Containment in hazardous waste bags, or double plastic wrapped in bundles, that can be hoisted directly from the transport truck, into pre-dug the disposal hole and immediately covered.

      • Only moved by machinery with pressurised cab system and double filtration.

    • Other safety requirements for placement staff.

      [GS - Are there other safety controls that are required e.g. PPE etc? Should they be covered here?]

    • The refuse will be spread in layers less than 600mm deep. [LMP 4.8.1]

    • If large loads of organic material or special wastes are received, they will be spread and compacted near the bottom of the face so that more resilient refuse can be compacted on the top.[LMP 4.8.1]

    • Bulky waste items require special measures in their placement. Such items should be crushed by mechanical means to reduce void space prior to placement at the base of the working face. Bulky items should not be placed in the final lift since they may pierce the cap following waste settlement. [Technical Guidelines for Disposal to Land, WasteMINZ, Revision 3.1, 2023, Chapter 7.8]

    • Supervision of the disposal activity at the working face should be maintained at all times when wastes are received at the landfill/fill to ensure the accountability of those depositing wastes at the site, and to identify inappropriate loads before they are covered and incorporated into the waste mass. [Technical Guidelines for Disposal to Land, WasteMINZ, Revision 3.1, 2023, Chapter 6.4]

    • Note that inspection of waste happens on tipping, but also on loading at the transfer station.

    • Wastes are inspected on tipping. [Fire Management Plan 3.1]

    • The landfill Operator must undertake daily Inspection and acceptance of waste to the specified criteria, including auditing of waste dockets (greater than or equal to 5 randomly selected loads per day). [Contract requirement]

    • All waste accompanied by a Hazardous Waste Manifest must be inspected on placement to ensure compliance with the Manifest.

      [GS - Is it appropriate to inspect all waste with manifest?]

    • Random inspections of incoming loads for the presence of hazardous waste shall be undertaken. [RM975261-D(7)]

    • Detailed records should be maintained as a mandatory requirement by the landfill/fill operator to provide confirmation that the WAC and WAP are being followed. [Technical Guidelines for Disposal to Land, WasteMINZ, Revision 3.1, September 2023, Chapter 6.4]

      [GS - How is this inspection done? How often? How is it recorded? WasteMINZ TG provides detailed guidance for inspection frequencies depending on waste. (Chapt 6.4)]

    • The Landfill Contractor is required to and has the right, as do the NTRLBU staff, in terms of the Nelson City Council Consolidated Bylaw Part 2 – Refuse Collection and Disposal, to inspect any load of waste material entering the landfill to ensure that all special waste is intercepted and appropriately handled. The detection of any such waste in a load after accidental tipping will be notified to the NTRLBU immediately and the contractor or firm shall meet costs for disposal and removal from the landfill. [LMP 2023 Chapter 4.3.3]

      [GS - This bylaw reference in the LMP is out of date. The authority comes from NTRLBU’s conditions if waste disposal. Is there a contract for this?]

    • Where a load inspection is undertaken the following information should be recorded:

      • date and time wastes were received for inspection

      • sources of the wastes

      • vehicle and driver identification

      • observations made by the inspector

      • notification of violations

      • notification of regional council, unitary authority, or other appropriate organisation. [LMP Appendix K.8]

    • The Landfill Contractor receiving wastes that require special handling procedures (for example, treated hazardous waste or asbestos containing materials) should record the location of those wastes when placed into the landfill, including:

      • type of waste

      • quantity of waste

      • location of waste (surveyed or identified on a landfill site plan),

      And shall report such details to the NTRLBU monthly. [LMP 2023 Appendix K.9]

    • Weighbridge dockets are to be provided by waste disposers to the Landfill Contractor who shall file them and then provide them to the NTRLBU. [LMP 2023 Chapter 4.3.10.1]

    • This information shall be provided to the Engineer’s Representative by the Landfill Contractor, through waste haulage and disposal contracts with the Councils or taken from transaction data collected at the transfer stations. [LMP 2023 Appendix K.7]

Reference

  • The discharge of municipal solid waste and leachate shall occur only on the area of the site identified as Gully 1, as shown in Plan Number 20/49-02 York Valley Sanitary Landfill Sites, Designated Areas.

    RM975261V2

  • The Consent Holder shall maintain a record of the quantities and types of refuse accepted at the landfill.

    RM975261V2

  • The Consent Holder shall provide an annual report to the Council’s Monitoring Officer on the types, quantities, sources and treatment of wastes accepted for disposal in accordance with the Hazardous Waste Manifest in Condition 7 of this consent. Waste Manifest records shall be made available to the Council’s Monitoring Officer on request.

    RM975261V2

  • The Consent Holder shall take all necessary OSH precautions in handling wastes, including monitoring of workplace exposure to airborne substances where appropriate.

    RM975261V2

  • The Consent Holder shall not place refuse within 10m of the front face of the landfill at RL 145. The maximum height of the fill shall rise from RL145 at a setback of 10m from the front face to a maximum height of RL160, at a setback 40m from the front face of the landfill. The landfill contours between 10m and 40m from the front face of the landfill shall be formed to provide the ability for the landfill to shed stormwater and for the fill face to be maintained in a stable condition in accordance with a geotechnical advisor’s requirements.

    RM975261V2

  • The exposed area of landfill shall be kept to a minimum at all times and refuse placed in the landfill will be compacted using suitable compactor equipment and shall be covered as soon as practicable by clay bound fill materials. Nelson City Council will ensure that there is no wind-blown refuse or objectionable elements from the presence of birds, vermin or smell. Refuse shall not be left uncovered following each day’s closure of the landfill.