Environment Testing

Leaders in testing for the Environment

Hill Laboratories’ Environmental division analyses an extensive range of matrices from drinking water to raw sewage, tip leachates, lake, river and stream waters, effluents, biota, sludges and soils.  Clients include major companies and councils from all over New Zealand.  We carry out testing for Resource Consents, contaminated site cleanups, property sales and general monitoring. Testing is done at both our Hamilton and Christchurch laboratories.

General Environmental Tests
Hill Laboratories can test: pH, alkalinity, conductivity, turbidity, suspended solids, total solids, ash, chloride, sulphate, fluoride, calcium, magnesium, hardness, sodium, potassium, silica, cyanide, sulphide, tannins, MBAS, volatile fatty acids, Dust Gauge analyses, total phenols, TCLP extraction/testing.

Ammonium-N (NH4N), total Kjeldahl nitrogen (TKN), total N, nitrate-N/nitrite-N, dissolved reactive phosphate (DRP), total phosphate (TP)

Oxygen demand
Chemical oxygen demand (COD), biochemical oxygen demand (BOD), total organic carbon (TOC/DOC/NPOC)

Hill Laboratories’ well equipped laboratory for metals and others elements routinely analyses for; aluminium, antimony, arsenic, boron, barium, beryllium, bismuth, cadmium, chromium, hexavalent chromium, cobalt, caesium, copper, iron, lithium, manganese, mercury, molybdenum, nickel, lead, selenium, silver, strontium, tin, thallium, uranium, vanadium, zinc, and others. Metals may be analysed as the total, total recoverable, acid soluble or dissolved (soluble) fraction. 

Soils, sediments, sludges, potable waters, ground and surface waters, effluents, leachates, trade wastes


  • Anions – F, Cl, SO4, Br, NO2N, NO3N, oxyhalides
  • Cations – Ca, Mg, Na, K, hardness
  • Organics – hydrocarbons (TPH, BTEX, PAH), VOC, SVOC, PCB, organochlorine, organonitrogen and organophosphate pesticides, acidic herbicides, PCP, TBT, HVDB, HVAA

Guides and Supporting Information

Specific profiles for Drinking Waters, Timber Treatment Sites, Old Gasworks, and Petroleum are available.

Contact Us

Freephone 0508 HILL LAB (44 555 22) or email Env.CSM@hill-labs.co.nz

Environmental Emergency Line 07 858 4717