Evaluate the electrical conductivity of water, which reflects the water's total ionic content and quality.

Test for E.coli to ensure the safety of marine, river, and ground waters. Linnaeus Laboratory is IANZ accredited for this test, offering reliable detection and results.

Chlorine is used to provide disinfection of the pool water, FAC levels should be maintained at 1.0-3.ppm or parts per million (also reported as g/m3 or grams per cubic metre). Too little chlorine leads to bacterial growth and waterborne illness. Too much affects eyes, nose and skin and is unhealthy long-term. Chlorine that has been ‘used up’ disinfecting pools will form Combined Chlorine. 

Chlorine can be present in water as free available and as combined chlorine (where free chlorine reacts with ammonia to form chloramines).  Both forms can exist in the same water.  FAC can be determined alone or both can be determined together as total chlorine. Testing for Total Chlorine will give the level of FAC and Combined Chlorine together, and subtracting the FAC from this gives the Combined Chlorine reading. Results are reported in g/m3.  Samples requiring chlorine testing must be in a container filled to the top and brought in to the laboratory as soon as possible to minimise chlorine loss.

APHA Method 4500-Cl G (adapted)

Faecal coliforms are a sub group within Total Coliforms and are present in the gut and faeces of warm-blooded animals. If present in food they can cause severe stomach cramps and diarrhoea.

This test is performed by APHA Compendium of Methods for the Microbiological Examination of Foods 5^th Edition 9.81 & 9.91. 

The results are available in 72 hours using a 3-replicate, 3 dilution multiple tube procedure.  This is reported as MPN/g (Most Probable Number).

This test identifies faecal coliforms in various water bodies to assess contamination levels. Linnaeus Laboratory is IANZ accredited for this test, ensuring precise and accurate outcomes.

Evaluate the microbial content of drinking water accurately with our testing. Linnaeus Laboratory is IANZ accredited for this test, ensuring detailed and reliable analysis.

Measurement of the pH determination is one of the most important and frequently used tests in water chemistry.  Practically every phase of water supply and wastewater treatment are pH dependent.  At a given temperature the intensity of the acidic or basic character of a solution is indicated by hydrogen ion activity and referred to as pH. On a scale of 1 – 14, pH 1 is considered strongly acidic and pH14 highly alkaline (or ‘base’).  pH 7 is described as neutral.

APHA method 4500-H+ B

Evaluate total coliform presence in marine, river, and ground water to maintain water quality. Linnaeus Laboratory is IANZ accredited for this test, providing dependable and detailed analysis.

Turbidity is a test of the intensity of scattered light in a sample and indicates the clarity of the water. If the sample contains debris and rapidly settling coarse sediment, the suspended solids test may be more appropriate. Results are reported in NTU (Nephelometric Turbidity Unit), using APHA method 3130 B and EPA 180.1.