Aim: The Environmental factors have an impact on water quality sample data collected in puzhal aeri lake water is pH, TDS, TSS, BOD and COD dissolved oxygen. Has been tested in laboratory,according to the water quality standard parameter bureau of inadian standards. Materials and methods:The study that compared with water quality parameters were collected in puzhal aeri neair 24 different samples (Group 1=12 and Group 2=12)in stations. lake water in puzhal aeri in Red hills chennai commonly collected for water quality testing total Dissolved oxygen, pH, TDS, TSS, BOD and COD testing. reservoir water standards domestic wastewater in water quality parameters of G-power 0.8 with a water quality are 0.07,0.2 With a confidence at 95%. Analysing the lake water quality standard where numbers of samples(N=4) and drinking water samples (N=4). Results: The water quality mean difference for lake water tested pH, TDS, TSS, BOD, and COD is and Drinking water quality tested pH, TDS, TSS, BOD and COD is we get graphically between the equal variances are assumed and are not assumed for alkalinity mean difference is 60.14. The results of standard testing are statistically represent the lake and their significance of mean difference of the population based on the samples and independent samples polluted or unpolluted performed on two groups it reveals a statistically significant difference (p> 0.05). Conclusion: The limits within this study is to show 12 samples collected in puzhal aeri lake water and the mean value performed equally to the drinking water. This study mainly focuses mainly on the water quality of puzhal aeri water conditions in both drinking irrigation purposes and human usages.