Need advice on action to be taken post water test conducted at Home

some values are not within limits and bacteria present

We have requested water test of sample post RO process at Home. Before RO process hardness of water is 400 PPM and after 52 PPM Below is the result of water test (only those are beyond limits are mentioned). Fluoride 1.22 mg/l (value obtained) 1 mg/l (MAX ACCEPTABLE LIMIT (AS PER IS 10500:2012) ) 1,2,4 Trimethylbenzene >5 ug/l (value obtained) 5 ug/l (MAX ACCEPTABLE LIMIT (AS PER IS 10500:2012) ) Coliform Bacteria (Except E.Coli) 150 CFU/100ml (value obtained) NIL (MAX ACCEPTABLE LIMIT (AS PER IS 10500:2012) ) Ecoli Bacteria 30 CFU/100ml (value obtained) NIL (MAX ACCEPTABLE LIMIT (AS PER IS 10500:2012) ) Can you please advice on what actions to be taken from our end ?

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