The of total hardness (20mg/l) was found at

The chloride level in water samples around Valampurivilai dumpsite was rangedbetween 83.38mg/l to 448.65mg/l.

Highest value of chloride was found at the sampling site S10 which is locatedat a distance of 1400m  from the dumpingsite in South East direction. while the lowest value was found at the samplingsite  S14 which is located at a distanceof 900m from the dumping site in North West direction. The founded chloridevalues are within the permissible limit (250mg/l to 1000mg/l) of BIS. Hence theground water around Valampurivilai dumping site has chloride concentrationwhich is favourable for human consumption and construction purposesTotalHardnessTotal hardness around Valampurivilai Dumpsite was in the range of 20mg/l to 520mg/l and it was found within the desirable limit of ISat all the sampling sites. Highest value of total hardness (520mg/l) was foundat the sampling site S1 which is located at a distance of 250m     from the dumping site in North Eastdirection, while the minimum value of total hardness (20mg/l) was found at thesampling site S9 which is located at a distance of 1100m     from the dumping site in West direction.

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Hence the ground water around Valampurivilai dumping site has total hardnesswhich is favourable for human consumption.  SulphateSulphate concentration of samplesaround Valampurivilai dumpsiteranged from 0mg/l to 77.8mg/l and itwas found within the desirable limit of IS at all the sampling sites. Highestvalue of sulphate (77.8mg/l) was found at the sampling site S1 which is locatedat a distance of 250m from the dumping site in North East direction, while theminimum value of sulphate (0mg/l) was found at the sampling site S3 which islocated at a distance of 700m from the dumping site in South East direction.Hence the ground water around Valampurivilai dumping site has sulphateconcentration which is favourable for human consumption and constructionalpurposesCODCODat Valampurivilai dumpsite wasrecorded in the range of 3.33mg/l to13.

33mg/l. Highest value of COD was found at the sampling site S9 and S2which is located at a distance of 1100m and 400m from the dumping site in Westand North East direction respectively, while the minimum value of COD was foundat the sampling site S3 which is located at a distance of 700m      from the dumping site in South Eastdirection. COD for human consumption is nil. Hence the ground water aroundValampurivilai dumping site has COD which is unfavourable for humanconsumption.DODOof water samples around Valampurivilai dumpsitesbeing ranged from 2.80mg/l to 6.81mg/l.The maximum value of DO was found at the sampling site S3 which is located at adistance of 700m  from the dumping sitein   South East    direction , while the minimum value of  DO (1mg/l) was found at the sampling site S9which is located at a distance of 1100m from the dumping site in  West direction.

TDSTotaldissolved solids at Valampurivilaidumpsite was recorded in the range of 271mg/lto 1380mg/l. Highest value of TDS was found at the sampling site S1 whichis located at a distance of 250m from the dumping site in  North East direction, while the minimum valueof TDS was found at the sampling site S3 which is located at a distance of 700m from the dumping site in  South East direction. All samples are withinthe permissible limits. Hence the ground water around Valampurivilai dumpingsite has TDS which is favourable for human consumption.

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