Home » According to the Geological survey, water with less than 1000 ml/litre of total dissolved solids is Water Pollution MCQs According to the Geological survey, water with less than 1000 ml/litre of total dissolved solids is September 21, 2022 10 Views Q. According to the Geological survey, water with less than 1000 ml/litre of total dissolved solids is __________ Brine waterFreshwaterSlightly salineModerately saline Answer: Freshwater