With no electricity, some people are using car batteries for power.
"Every day, I visited at least three or four stores looking for bottled water, and I didn’t get any, so every night I try to do the math to be able to boil water and not use enough gas to be able to also cook," Ramírez said.
As the island struggles to recover, the impacts have hit the poor hard.
"Sampling of these wells done in 2015 indicated that some exceeded drinking water standards for volatile organic chemicals," Harris-Bishop said in an email.
Official government figures place the death toll from the storm at 48 in Puerto Rico.
"As more people are going hungry, FEMA keeps doing paperwork," said José Andrés, founder of non-profit food assistance organization World Central Kitchen. "When we should have less people hungry, it seems every day we have more.
Andrés said his group was providing 70,000 warm meals per day out of 6 kitchens across Puerto Rico without FEMA support as of Wednesday. The group hoped to expand to 100,000 meals by the end of the week but much more was needed for Puerto Rico’s 3.4 million people, Andrés said.
As the daily struggle for food and water persists, President Trump threatened to cut off federal support to the U.S. territory on Thursday.