Aging water infrastructure could seriously imperil both public health and the economy if current investment trends continue, according to a new report released by the American Society of Civil Engineers (ASCE).

In the second report in its “Failure to Act” series, the group lays out the economic consequences of increasingly unreliable water delivery and wastewater treatment, forecasting the loss of 700,000 jobs by 2020 and $1.4 million jobs by 2040.

A GDP loss of $416 billion is predicted between 2011 and 2020.