Evaluation of the risks associated with the use of Rooftop Rainwater Harvesting and Groundwater for Domestic use and Livestock Watering (Volume 2) Chemical Quality of Groundwater for Potable Use and Livestock Watering. Evaluation of the risks associated with the use of Rooftop Rainwater Harvesting and Groundwater for Domestic use and Livestock Watering (Volume 2) Chemical Quality of Groundwater for Potable Use and Livestock Watering. Posted in .