Add Yahoo as a preferred source to see more of our stories on Google. As Central Iowa Water Works imposes a lawn-watering ban to help ensure member utilities have the capacity to treat high levels of ...

Even when tap water appears clear, it may still contain dissolved salts, unwanted taste and odour compounds, and other ...

Reverse osmosis systems remove nitrates and other contaminants from water by forcing it through a membrane. Home reverse osmosis systems are increasing in sales due to high nitrate levels in central ...