delware environmental institute

Overpumping in Dhaka may threaten regional groundwater resources outside the city

Overpumping in Dhaka may threaten regional groundwater resources outside the city

A new paper by the University of Delaware’s Holly Michael and Mahfuzur Khan and colleagues, out today in Nature Communications, reveals that overpumping of groundwater in Dhaka, Bangladesh, may have unforeseen consequences for citizens living in communities outside the city center.

With a population of over 15 million people, Dhaka — the capital of Bangladesh — is considered a mega-city and shares many of the water management problems common to other major cities.

While efforts are made to sustain water quantity and quality in city water supplies, Dhaka pumping has caused groundwater levels to drop more than 200 feet over the last 50 years and these levels continue to decline at a rate of up to 9 feet per year.