• NTRLBU must analyse the leachate quality in leachate monitoring wells to coincide with groundwater level maximum and minimum (generally September and April). [RM975261-D(11.1)]

  [MS - The method of notification is yet to be determined.]

• 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.

• Bottle delivery is highly dependent on local couriers; but in general, orders will be sent out <2 days following the request to us and then it is 1-3 days for courier delivery (more if RD).

• Most clients who do regular/routine testing work off a quote. Then they just have to email or call up and ask for the bottles associated with that quote number. Alternatively, we can add a schedule to quotes, so that bottles are sent out automatically on a frequency nominated by the client.

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

• Leachate Monitoring (GW Min – generally April) analysis required: [RM975261-D(11.1)]

  • temperature (field)

  • pH (field & laboratory)

  • electrical conductivity (field & laboratory)

  • alkalinity

  • sulphate

  • dissolved reactive phosphorus

  • total organic carbon

  • chloride

  • sodium

  • potassium

  • calcium

  • magnesium

  • ammoniacal nitrogen

  • nitrate nitrogen

  • total kjeldahl nitrogen

  • BODs

  • COD

  • total boron

  • total iron

  • total zinc

  • total aluminium

  • total chromium

  • total manganese

  • total cobalt

  • total nickel

  • total copper

  • total arsenic

  • total cadmium

  • total lead

  • organochlorine pesticides

  • semi-volatile organic compounds (SVOCs)

  • volatile organic compounds (VOCs)

  • polychlorinated biphenyls (PCB's)     

• 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.

• Bottle delivery is highly dependent on local couriers; but in general, orders will be sent out <2 days following the request to us and then it is 1-3 days for courier delivery (more if RD).

• Most clients who do regular/routine testing work off a quote. Then they just have to email or call up and ask for the bottles associated with that quote number. Alternatively, we can add a schedule to quotes, so that bottles are sent out automatically on a frequency nominated by the client.

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

• Leachate Monitoring (GW Max – generally September) analysis required: [RM975261-D(11.1)]

  • temperature (field)

  • pH (field & laboratory)

  • electrical conductivity (field & laboratory)

  • alkalinity

  • sulphate

  • dissolved reactive phosphorus

  • total organic carbon

  • chloride

  • sodium

  • potassium

  • calcium

  • magnesium

  • ammoniacal nitrogen

  • nitrate nitrogen

  • total kjeldahl nitrogen

  • BODs

  • COD

  • total boron

  • total iron

  • total zinc

  • total aluminium

  • total chromium

  • total manganese

  • total cobalt

  • total nickel

  • total copper

  • total arsenic

  • total cadmium

  • total lead  

• Gloves and eye protection must be worn when sampling leachate.

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

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

• Thermo Fisher Probe (temperature, pH, electrical conductivity).

• 2 x 5L Jugs

• Bore Pump

• Hand Bailer

• Sample bottles (to be ordered from, and supplied by, Hills Labs).

• Ice Packs (completed samples need to be kept chilled).

• Collect leachate samples at each Leachate Monitoring Well (MW A, MW B, MW C, MW D, MW E, PZ 1, PZ 2, PZ 3, PZ 4, PZ 5, PZ 6, PZ 7). [MS - We need to check these are all still accessible and haven't been replaced]

• For each well, remove bore hole lid, remove baler, place pump in the bottom of the bore hole (lift pump slightly so it is not sitting on ground as to not stir up sediment)

• Start pumping until dry (or until 40L has been pumped), water from pumping is to be put in the 5L containers – counting each container to be able to complete calculation. The last 2 Full containers of pumped water are to be kept to be tested.

• Use the Thermo Fisher Probe to measure:

  • temperature

  • pH

  • electrical conductivity

• Record the values in Survey 123 [LINK].

• Take a photo of the sample (which will be used to fill the sample bottles) in the 5L Container in front of the location (to be kept as a record in case there are any questions once the test results are received).

• Use the bailed leachate to fill each labelled sample bottle (provided by the testing laboratory) which are identified by a label on each of the bottles for each of the locations.

• Ensure the bottles are filled right to the top with no air bubble. Carefully attach the lid and ensure the bottle is well sealed.

• Once filled and capped wipe each sample bottle and place in a clean plastic bag to minimise the potential of contamination of other samples.

• Write the time of sample and date on the bottle labels and put in the box to be kept chilled with the ice packs and boxed (completed samples need to be kept chilled

[GS - note this is the groundwater sampling procedure - Used as a starting point.]

• Immediately after sampling, Complete the Chain of Custody form provided by the testing laboratory and send the chilled sample box by courier to Hill Laboratories Ltd.

• Lab address and phone number:

  1/17 Print Place, Middleton 
  Christchurch 8042
  0508 HILL LAB (0508 44 555 22)

• 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. [LINKs required]

• 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.

[GS - The consent does not require any analysis of results or set any limits. It just requires reporting. But there must be acceptable limits, and someone must be comparing the results with these limits. Is this all done by the NCC water scientist of does NTRLBU have a role here.]

(11.1) The Consent Holder shall characterise the leachate from Gully 1. To this end, the Consent Holder shall monitor the leachate twice a year in April and September (generally September) and summer groundwater minimum (generally April) for the following parameters:

• temperature (field)

• pH (field & laboratory)

• electrical conductivity (field & laboratory)

• alkalinity

• sulphate

• dissolved reactive phosphorus

• total organic carbon

• chloride

• sodium

• potassium

• calcium

• magnesium

• ammoniacal nitrogen

• nitrate nitrogen

• total kjeldahl nitrogen

• BODs

• COD

• total boron

• total iron

• total zinc

• total aluminium

• total chromium

• total manganese

• total cobalt

• total nickel

• total copper

• total arsenic

• total cadmium

• total lead

In addition, the Consent Holder shall analyse for the following determinants annually in the April sampling round.

• Organochlorine pesticides

• semi-volatile organic compounds (SVOCs)

• volatile organic compounds (VOCs)

• polychlorinated biphenyls (PCB's)

The results of such characterisation shall be reported to the Council's Compliance Officer, Nelson City Council within two months of sampling.

RM975261V2