The found within the desirable limit of IS at

The chloride level in water samples around Valampurivilai dumpsite was ranged
between 83.38mg/l to 448.65mg/l.
Highest value of chloride was found at the sampling site S10 which is located
at a distance of 1400m  from the dumping
site in South East direction. while the lowest value was found at the sampling
site  S14 which is located at a distance
of 900m from the dumping site in North West direction. The founded chloride
values are within the permissible limit (250mg/l to 1000mg/l) of BIS. Hence the
ground water around Valampurivilai dumping site has chloride concentration
which is favourable for human consumption and construction purposes

Total
Hardness

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Total hardness around Valampurivilai Dumpsite was in the range of 20mg/l to 520mg/l and it was found within the desirable limit of IS
at all the sampling sites. Highest value of total hardness (520mg/l) was found
at the sampling site S1 which is located at a distance of 250m     from the dumping site in North East
direction, while the minimum value of total hardness (20mg/l) was found at the
sampling site S9 which is located at a distance of 1100m     from the dumping site in West direction.
Hence the ground water around Valampurivilai dumping site has total hardness
which is favourable for human consumption.

 

 

Sulphate

Sulphate concentration of samples
around Valampurivilai dumpsite
ranged from 0mg/l to 77.8mg/l and it
was found within the desirable limit of IS at all the sampling sites. Highest
value of sulphate (77.8mg/l) was found at the sampling site S1 which is located
at a distance of 250m from the dumping site in North East direction, while the
minimum value of sulphate (0mg/l) was found at the sampling site S3 which is
located at a distance of 700m from the dumping site in South East direction.
Hence the ground water around Valampurivilai dumping site has sulphate
concentration which is favourable for human consumption and constructional
purposes

COD

COD
at Valampurivilai dumpsite was
recorded in the range of 3.33mg/l to
13.33mg/l. Highest value of COD was found at the sampling site S9 and S2
which is located at a distance of 1100m and 400m from the dumping site in West
and North East direction respectively, while the minimum value of COD was found
at the sampling site S3 which is located at a distance of 700m      from the dumping site in South East
direction. COD for human consumption is nil. Hence the ground water around
Valampurivilai dumping site has COD which is unfavourable for human
consumption.

DO

DO
of water samples around Valampurivilai dumpsites
being 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 a
distance of 700m  from the dumping site
in   South East    direction , while the minimum value of  DO (1mg/l) was found at the sampling site S9
which is located at a distance of 1100m from the dumping site in  West 
direction.

TDS

Total
dissolved solids at Valampurivilai
dumpsite was recorded in the range of 271mg/l
to 1380mg/l. Highest value of TDS was found at the sampling site S1 which
is located at a distance of 250m from the dumping site in  North East direction, while the minimum value
of 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 within
the permissible limits. Hence the ground water around Valampurivilai dumping
site has TDS which is favourable for human consumption.

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