<prompt> Proposed guideline values for radioactivity in drinking water is:Gross alpha activity 0.5 BqL and gross beta activity 1.0 BqLGross alpha activity 1.0 BqL and gross beta activity 0.5 BqLGross alpha activity 5.0 BqL and gross beta activity 10.0 BqLGross alpha activity 10 BqL and gross beta activity 5.0 BqL  <response>: Gross alpha radiological activity 0.5 Bqlitre New guideline WHO. Gross beta radiological activity 1.0 Bqlitre New guideline - WHO. Other Guidelines of drinking water quality in India: Colour 15 TCU Turbidity 1 NTU Hardness 100-300 mgL pH 6.5- 8.5 TDS 500 mgL Fluorides 1ppm Nitrates 45 mgd Nitrites 3 mg d 