Drinking Water Test Parameters

Testing procedures and parameters may be grouped into physical chemical bacteriological and microscopic categories.

Drinking water test parameters.

Contaminants in drinking water could affect many people because we use water every day. Epa has established protective drinking water standards for more than 90 contaminants including drinking water regulations issued since the 1996 amendments to the safe drinking water act that strengthen public health protection. The parameters are divided into three categories. Safe drinking water act sdwa protecting america s drinking water is a top priority for epa.

Water test parameters the following tables provide a general guideline to common water quality parameters that may appear on your water analysis report. Epa sets legal limits on over 90 contaminants in drinking water. Even where standards do exist and are applied the permitted concentration of. Microbiological chemical and indicator parametric values parameter parametric value unit comments notes microbiological parameters 1 escherichia coli e.

4 2 5 laboratory based versus on site testing 65 4 2 6 single application disposable test kits 66 4 3 physicochemical analysis 67 4 3 1 chlorine residual 67 4 3 2 ph 67 4 3 3 turbidity 68 4 4 aesthetic parameters 68 4 4 1 colour 68 4 4 2 taste and odour 69 4 5 other analyses of relevance to health 69 4 6 analytical quality assurance and. 1 physical water quality testing parameters turbidity. Coli bacteria is present in very high numbers in human or animal faeces and is rarely found in the absence of faecal pollution. Coli 0 no 100 ml the e.

Use powerpoint presentation to demonstrate the limited supply of clean drinking water and to cover the 8 parameters to be tested on water supplies with a focus on the source and harmful levels of the contaminant. Drinking water quality standards describes the quality parameters set for drinking water despite the truth that every human on this planet needs drinking water to survive and that water may contain many harmful constituents there are no universally recognized and accepted international standards for drinking water. Chemical tests determine the amounts of mineral and organic substances that affect water quality. Physical tests indicate properties detectable by the senses.

Epa rules also set water testing schedules and methods that water systems must follow. The first water quality testing which i am going to write for you is turbidity turbidity is the cloudiness of water caused by a large number of suspended solids is generally invisible from this water quality testing you can determine the clarity of the water. Break students into groups. As such its presence in drinking water is a good indication that either the source of.

They must design their own experiment clarifying which water sources they plan to test at which. Health risk parameters general indicators and nuisance parameters.