FLINT, Mich. (AP) — The mayor of Flint says she wants to do what's necessary for the Michigan city to comply with safe drinking water regulations.

Karen Weaver responded Saturday to a letter from Mark Pollins of the U.S. Environmental Protection Agency's Water Enforcement Division.

Pollins said the state and city have made progress toward meeting EPA instructions for dealing with lead contamination in Flint's water. But he said they've fallen short in significant ways, including having too few qualified personnel to operate the city water system and failing to develop a complete plan for controlling corrosion in water pipes.

Weaver says she agrees that corrosion control is essential to protect Flint residents. Responding to the EPA finding on personnel, she says she wants to build additional capacity to make the city's water safe.