Prices and Analytical Methods

Please contact us to discuss your needs before sending your samples to our lab.

Prices can vary depending on the sample size and interpretation required. We would be happy to work with you to build a project plan and pricing structure to suit your requirements.

The laboratory analysis prices quoted below will provide you with the concentration of each tracer in the sample. Costs for interpretation and reporting are additional, please contact us.

All prices are exclusive of GST and effective as of 1 March 2015. There is no VAT, GST or sales tax applicable to clients submitting from outside New Zealand.

Parameter Price Methods Used Sample Size (litres) Detection Limit Turn around time Note
Tritium NZ$ 730* Radiometric detection. Electrolytic enrichment + low level scintillation detectors. 1.1 TR = 0.02-0.03,
Bq/kg = 0.004-0.005
4 to 5 months Depending on lab load. Please contact the lab for current turnaround time (TAT)
CFCs NZ$ 360* Gas Chromatography with Electron Capture Detection (Ar & N2 are also determined). 0.15     Use GNS supplied bottles. Contact the lab for TAT
SF6 NZ$ 360* Gas Chromatography with Electron Capture Detection. 1     Use GNS supplied bottles. Contact the lab for TAT
Assessment of groundwater security (tritium, CFCs, SF6 and interpretation) NZ$ 2590*         Use GNS supplied bottles. Contact the lab for TAT
Radon NZ$ 80* Radiometric detection. Low level scintillation detectors. 0.025 Bq/L = 0.1   Use GNS supplied bottles. Contact the lab before sampling.
18O or deuterium measurement See Stable Isotope Laboratory price list.   IRMS      
18O or deuterium measurement See Stable Isotope Laboratory price list.   Laser      
32Si     Radiometric detection.   Contact us  
Tritium – direct measurement     Radiometric detection.   Contact us  
Radiocarbon     AMS   Contact us  
Glass globes

Additional costs:

  • Air freight from overseas.
  • Delivery costs within New Zealand (minor)
  • Fee for quarantine clearance by the Ministry of Agriculture and Forestry (minor)
  • Samples such as geothermal waters which require excessive work for purification will incur an additional cost of $70.

Interpretation of groundwater ages

Most groundwaters are mixtures of water with different ages because of the nature of flow in porous media. The age distribution depends on the hydrogeologic attributes of the aquifer concerned, as well as characteristics of the sampling point such as bore depth and screen length. Well-defined flow models, which describe the distribution of ages of water from different flow lines contributing to a groundwater sample, are used to calculate the mean age and mixing parameters [12].