No stormwater coming in contact with refuse shall be discharged as stormwater but shall be considered leachate and discharged into the leachate collection system.

RM975261V2

All stormwater from the footprint of the landfill shall be treated in the sediment retention ponds (SRPs) as shown on ‘Erosion & Sediment Control Plan Site Upgrade’ (Drawing Number ESCP-001-01, Sheet 1) and the plan entitled ‘York Valley Landfill Erosion and Sediment Control Sediment Retention Pond (SRP) 3 Plan’ (Plan Number CE-043), attached to this consent, or as shown on any amended drawings or plans that have been be submitted to the Council’s Monitoring Officer for certification and are subsequently certified.

RM975261V2

All existing or new cut off drains beyond the footprint of the land fill shall not cross the footprint of the landfill prior to being discharged to York Stream or the Nelson City Council stormwater system.

RM975261V2

(15) The Consent Holder shall characterise the water quality in York Stream at Monitoring Points IV and V as shown on the drawing entitled ‘Erosion & Sediment Control Plan Site Upgrade’ (Drawing Number ESCP-001-01, Sheet 1) attached to this consent. To this end the Consent Holder shall monitor surface water at the following monitoring frequencies and analyse the collected samples for the parameters listed below:

• Three Monthly intervals:

  • temperature (field)

  • pH (field)

  • electrical conductivity (field)

  • dissolved oxygen (field)

  • total suspended solids (TSS)/turbidity (field)

  • visual observation on the presence of sediment or biological growths

• Six Monthly Intervals:

  • three monthly interval parameters plus the following:

  • BOD5

  • COD

  • chloride

  • sodium

  • potassium

  • calcium

  • magnesium

  • sulphate

  • alkalinity

  • total ammoniacal nitrogen

  • nitrate nitrogen

  • nitrite nitrogen

  • total boron

  • total manganese

  • total iron

  • total lead

• Twelve Monthly Intervals:

  • Six monthly interval parameters plus the following:

  • Total zinc

  • Total chromium

  • Total cadmium

  • Total copper

  • Total nickel

  • Pesticide Screen

  • Total organic carbon

Except that in relation to: Dissolved Oxygen - which shall be monitored to determine a 7-day minimum measurement (7-day minimum measured between 1 November – 30 April in any year).

If the testing indicates a numeric attribute state under the NPS-FM (2020) of less than C (≥5 and <7 mg/L) after reasonable mixing at Monitoring Point V as shown on the drawing entitled ‘Erosion & Sediment Control Plan Site Upgrade’ (Drawing Number ESCP-001-01, Sheet 1) attached to this consent, the Consent Holder shall notify the Council’s Monitoring Officer within 24 hours and undertake an investigation by a Suitably Qualified and Experience Person(s) to determine the cause. Following the investigation and within 3 months of the incident, the Consent Holder shall submit a report (including options for remediation actions if required) to the Council’s Consent Monitoring Officer.

If the report recommends that changes in site management are required to reduce the risk of further incidents resulting in adverse effects, a revised ESCP and CTMP shall be prepared by a Suitably Qualified and Experience Person and submitted to the Council’s Consent Monitoring Officer for certification (who will request a review by the Council’s Water Quality Scientist).

Advice Note: Changes to site management may include a plan outlining the actions required for treatment to remove contaminants to acceptable loads, and a review of the monitoring programme.

In addition, water from below the York detention dam shall be analysed annually for:

• volatile organic compounds

• semi-volatile organic compounds

Where volatile or semi-volatile organic compounds are detected in the downstream sample, the sampling round shall be repeated at monitoring sites IV and V.

An ion balance to APHA criteria shall be provided for the anions and cations. The results of such characterisation shall be reported to the Council’s Monitoring Officer within two months of sampling.

RM975261V2

The Consent Holder shall characterise the quality of the stormwater discharge at Monitoring Point VI as shown on drawing entitled ‘Erosion & Sediment Control Plan Site Upgrade’ (Drawing Number ESCP-001-01, Sheet 1) attached to this consent.

To this end the Consent holder shall collect stormwater samples at the following monitoring frequencies and analyse the collected samples for the parameters listed below:

• Three Monthly intervals:

  • temperature (field)

  • pH (field)

  • electrical conductivity (field)

  • dissolved oxygen (field)

  • total suspended solids (TSS)/turbidity (field)

  • visual observation on the presence of sediment or biological growths

• Six Monthly Intervals:

  • three monthly interval parameters plus the following:

  • BOD5

  • COD

  • chloride

  • sodium

  • potassium

  • calcium

  • magnesium

  • sulphate

  • alkalinity

  • total ammoniacal nitrogen

  • nitrate nitrogen

  • nitrite nitrogen

  • total boron

  • total manganese

  • total iron

  • total lead

• Twelve Monthly Intervals:

  • Six monthly interval parameters plus the following:

  • Total zinc

  • Total chromium

  • Total cadmium

  • Total copper

  • Total nickel

  • Pesticide Screen

  • Total organic carbon

Except that in relation to:

TSS - which, in addition to the three-monthly analyses required above, shall also be analysed during the following specific rainfall trigger events for the first 12 months following the granting of resource consent RM975261 D, E and G (V2):

• 15 mm in 1 hour; or

• 25 mm in 24 hours as measured at the onsite weather station.

This TSS/turbidity testing shall be undertaken using a combination of laboratory TSS testing, hand-held electronic TSS/turbidity analyser measures and automated turbidity monitoring equipment at Monitoring Site VI and the upstream York Stream monitoring point IV shown on the drawing entitled ‘Erosion & Sediment Control Plan Site Upgrade’ (Drawing Number ESCP-001-01, Sheet 1). Once the site-specific TSS/Laboratory TSS relationship has been established, the electronic TSS triggers shall be set to require the discharge valve on SRP 3 to automatically close.

Dissolved Oxygen - which shall be monitored to determine a 7-day minimum measurement (7-day minimum measured between 1 November – 30 April in any year).

If the testing indicates a numeric attribute state under the NPS-FM (2020) of less than C (≥5 and <7 mg/L) after reasonable mixing at Monitoring Point V as shown on the drawing entitled ‘Erosion & Sediment Control Plan Site Upgrade’ (Drawing Number ESCP-001-01, Sheet 1) attached to this consent, the Consent Holder shall notify the Council’s Monitoring Officer within 24 hours and undertake an investigation by a Suitably Qualified and Experience Person(s) to determine the cause. Following the investigation and within 3 months of the incident, the Consent Holder shall submit a report (including options for remediation actions if required) to the Council’s Consent Monitoring Officer.

If the report recommends that changes in site management are required to reduce the risk of further incidents resulting in adverse effects, a revised ESCP and CTMP shall be prepared by a Suitably Qualified and Experience Person and submitted to the Council’s Consent Monitoring Officer for certification (who will request a review by the Council’s Water Quality Scientist).

Advice Note: Changes to site management may include a plan outlining the actions required for treatment to remove contaminants to acceptable loads, and a review of the monitoring programme.

An ion balance to APHA criteria shall be provided for the anions and cations. The results of such characterisation shall be reported to the Council’s Monitoring Officer within two months of sampling.

RM975261V2

The Consent Holder shall provide a report for the preceding twelve months, reflecting the financial year, to the Divisional Manger of Planning and Consents, Nelson City Council at annual intervals, or on request. Any report submitted under this condition shall cover the complete period from the last report and shall include:

(a) the results of all monitoring undertaken, and interpretation of the results, and an assessment of the impact of the landfill on the environment;

(b) the results of any waste surveys;

(c) copies of any records required by conditions;

(d) copies of the then current contingency plan;

(e) copies of the complaints register for the full year preceding;

(f) copies of the incident register for the full year preceding.

In the event that the monitoring requirements set out in the Management Plan are not complied with and the parameters exceeded, the Consent Holder shall undertake the following;

(a) immediately notify the Manager, Consents and Compliance in writing;

(b) immediately investigate the reason why the requirements were not complied with;

(c) immediately identify and undertake whatever appropriate remedial action is required to the satisfaction of the Manager, Consents and Compliance to mitigate the effects, which action may include closing the landfill or removing the material which has led to such non-compliance;

(d) advise the Manager, Consents and Compliance of the steps taken;

(e) immediately take whatever other steps are necessary to bring the landfill operation to a position of compliance.

Periodic testing of the stream waters leaving the area for contaminants and leachates shall be arranged in conformity with the conditions of the Water Right or resource consent. In the event that stream waters leaving the landfill site become contaminated by contact with refuse, waste or other deleterious material as a result of the operation of the landfill, Nelson City Council shall undertake immediate remedial measures to effectively remove the contamination.

Designation DN1 (accessed Aug 2023)

• Receive notification that surface water sampling is required.

• Notification method yet to be confirmed. Either Survey 123 or SCADA notifications by email. [ML - 3, 6 and 12 monthly is scheduled, rainfall event triggered sampling is currently dependant on NTRLBU watching the SCADA.  Aiming to get alarms in SCADA for trigger volumes.]

• An Analysis Request must be submitted to Hill Laboratories Ltd (mail@hill-labs.co.nz). The Analysis Request needs to set out:

  • The name and contact details of NTRLBU.

  • The purchase order number.

  • The number of samples and the analysis required for each (see below).

  • The date and time of the request.

  • The name and signature of the requestor.

• 6- monthly analysis required:

  • BOD5

  • COD

  • chloride

  • sodium

  • potassium

  • calcium

  • magnesium

  • sulphate

  • alkalinity

  • total ammoniacal nitrogen

  • nitrate nitrogen

  • nitrite nitrogen

  • total boron

  • total manganese

  • total iron

  • total lead

• On receiving the Analysis Request, Hill Laboratories will send the required sample bottles with labels to NRTLBU.

[RM975261V2-D(15)]

• An Analysis Request must be submitted to Hill Laboratories Ltd (mail@hill-labs.co.nz). The Analysis Request needs to set out:

  • The name and contact details of NTRLBU.

  • The purchase order number.

  • The number of samples and the analysis required for each (see below).

  • The date and time of the request.

  • The name and signature of the requestor.

• 12-monthly analysis required:

  • BOD5

  • COD

  • chloride

  • sodium

  • potassium

  • calcium

  • magnesium

  • sulphate

  • alkalinity

  • total ammoniacal nitrogen

  • nitrate nitrogen

  • nitrite nitrogen

  • total boron

  • total manganese

  • total iron

  • total lead

  • Total zinc

  • Total chromium

  • Total cadmium

  • Total copper

  • Total nickel

  • Pesticide Screen

  • Total organic carbon

• On receiving the Analysis Request, Hill Laboratories will send the required sample bottles with labels to NRTLBU.

[RM975261V2-D(15)]

• Measurements and samples are taken of the stormwater discharge at Monitoring Point VI. A discharge must be conducted following the Stormwater Discharge Procedure.

• Gloves and eye protection must be worn when sampling stormwater sampling. [MS a risk assessment necessary to determine whether this is necessary.]

• If any stormwater inadvertently spills onto a person, that person should immediately rinse the affected area with clean water.

• Persons sampling or dealing with stormwater must wash their hands after completing their tasks and before smoking, eating, or drinking.

• Handheld instruments for taking field measurements (PH, Conductivity, Temp, Dissolved Oxygen, Turbidity)

• Long Reach Sampling Pole (with Bottle Holder)

• Sampling Bottles (to be ordered from Hills Labs, ensure return courier labels are to CHC not Hamilton) – completed samples need to be kept chilled.

• Ice Packs

• Use handheld field instruments to measure: [RM975261 - D(15), E(6), G(6)].

  • temperature (field)

  • pH (field)

  • electrical conductivity (field)

  • dissolved oxygen (field)

  • total suspended solids (TSS) (field)

  • visual observation on the presence of sediment or biological growths

• Measurements are taken from the centre of the Stormwater discharge flow at York Stream Monitoring Points IV (upstream), V (downstream) and SRP3 Monitoring Point VI (Drawing Number ESCP-001-01, Sheet 1)

• Record the values in the ‘Surface Water Quality’ form in Survey 123.

[RM975261V2-D(15)]

• Dissolved Oxygen must be monitored to determine a 7-day minimum measurement (7-day minimum measured between 1 November – 30 April in any year).

• Record the results in Surface Water Quality form in Survey 123.

[RM975261V2-D(15)]

• Assess whether the 7-day minimum DO indicates a numeric attribute state under the NPS-FM (2020) of less than C (≥5 and <7 mg/L) after reasonable mixing at Monitoring Point V.

[RM975261V2-D(15)]

• If the DO testing indicates a numeric attribute state under the NPS-FM (2020) of less than C (≥5 and <7 mg/L) after reasonable mixing at Monitoring Point V the Consent Holder must:

  • notify the NCC Consent Monitoring Officer within 24 hours; and

  • undertake an investigation by a Suitably Qualified and Experience Person(s) to determine the cause.

[RM975261V2-D(15)]

• Following the investigation and within 3 months of the incident, the NRLBU must submit a report (including options for remediation actions if required) to the Council’s Consent Monitoring Officer.

• If the report recommends that changes in site management are required to reduce the risk of further incidents resulting in adverse effects, a revised ESCP and CTMP must be prepared by a Suitably Qualified and Experience Person and submitted to the Council’s Consent Monitoring Officer for certification (who will request a review by the Council’s Water Quality Scientist).

[RM975261V2-D(15)]

• In addition to the 12-month laboratory samples (required below), a water sample must be taken from below the York detention dam to enable an annual laboratory analysis of volatile and semi-volatile organic compounds.

[RM975261V2-D(15)]

• Sampling should be undertaken in the morning whenever possible in order to use the same-day courier and minimise delays in samples reaching the lab

• Attach each sample bottle provided by the Analytical Testing Laboratory to the Long Reach Sampling Pole.

• Take a manual grab sample by dipping the Long Reach Sampling Pole and bottle into the centre of the Stormwater discharge flow at York Stream Monitoring Points IV (upstream), V (downstream) and SRP3 Monitoring Point VI (Drawing Number ESCP-001-01, Sheet 1) and filling the bottle.

• Ensure the bottles are filled right to the top with no air bubble.

• Carefully attach the lid and ensure the bottle is well sealed.

• Write the time of sample and date on the bottle labels and put in the box to be kept chilled with the ice packs.

• Immediately following the sample collection, they are sent chilled by courier to Hill Laboratories Ltd (1/17 Print Place, Middleton, Christchurch 8042, New Zealand).

• The samples are analysed by Hill Laboratories Ltd and results forwarded to the NTRLBU representatives and copied to specialists engaged by NTRLBU as appropriate.

• Data is uploaded into NTRLBU database and stored by NTRLBU in an Excel spreadsheet as part of the annual monitoring reporting requirements. [ML - Need placeholder until dashboards ready]

• Any Resource Consent limit exceeded must be reported immediately to the NCC Compliance Monitoring Officer [RM975261V2 - Sch 1 (20)]

• If yes, continue to Step 17 below.

• [GS - need to confirm detention dam location]

[RM975261V2 - D (15)]

• Where volatile or semi-volatile organic compounds are detected in the downstream sample, the sampling round shall be repeated at monitoring sites IV (upstream) and V (downstream. [RM975261V2 - D (15)]

• Any Resource Consent limit exceeded must be reported immediately to the NCC Compliance Monitoring Officer [RM975261V2 - Sch 1 (20)]

• Report to the NCC Compliance Officer within two months of sampling.

• All data is reported on in the Annual Monitoring Report by 31 October each year.

• Surface water quality monitoring records must be provided on request and included in the Annual Report

[RM975261 Sch 1 (18)]