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Water Analyses:

pH, EC, NO₃-N, SO₄-S, PO₄, K, Ca, Mg, Na, Cu, Zn, Mn, Fe, B, Cl, SAR, Hardness, TDI

Additional tests on request:

Total Alkalinity: Carbonate/Bicarbonate

Microbial analyses for HACCP quality management are also available.

The analysis of irrigation waters provides information that will help the grower to make decisions on the effective use of water and fertilisers.

Information can also be provided on suitability of waters for stock or domestic use and the type of treatment (if any) available to improve the water quality.

The nitrate test is an important indicator of contamination by animal wastes, domestic sewage, and fertiliser runoff. Nitrates are a hazard in drinking water, and waters to be used for drinking should be checked periodically. The health hazards that are associated with nitrates result chiefly from bacteria conversion in the stomach of ingested nitrate to nitrite. Infants are particularly susceptible.

pH levels can indicate the corrosiveness of the water. Very acid or very alkaline waters can cause considerable problems for domestic use and in agriculture, to both livestock and crop production.

EC (Electrical Conductivity) levels indicate the salinity level, which is highly significant to crop production and quality. In a domestic situation, salinity can cause severe corrosion and scale formation on metal plumbing fittings and hot water systems. Sodium and chloride can have direct toxic affects on some plants. Calcium and magnesium, which also contribute to total salinity, are responsible for water hardness, which is undesirable in a domestic situation.

Trace elements can be present in bore and surface waters, and can cause unpleasant taste, laundry staining, growth of micro-organisms and discolouration of plumbing fittings. High iron levels can cause blockages in irrigation equipment, and at very high levels can cause yield reductions in crops.

Hydroponic solutions are also analysed in the laboratory, and provide information on the nutrients provided in hydroponic systems, and top up or new mix solutions required.

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