The U.S. Department of Agriculture will invest more than $7 million to improve drinking water systems for three rural Arizona communities. 

Tacna has been dealing with arsenic in its water supply for about a decade. But residents were able to take advantage of a program that helps rural areas with infrastructure.

The USDA and Yuma County were able to locate loan and grant money to help the community rebuild its water delivery system.

“Tacna’s current water system is more than 40 years old and it’s just beyond repair, said Heather Stacy, a spokeswoman for the USDA. "And the community’s been dealing with high arsenic levels in their water since 2011.”

A couple of communities near Prescott will be able to upgrade drinking water distribution, fire hydrants and meters.