New inventories show fewer lead service lines than previously estimated, but Wisconsin water systems still aren’t sure what 181,000 pipes are made of.
Author Archives: Hongyu Liu / Wisconsin Watch
Hongyu Liu joined Wisconsin Watch as a data investigative reporter in September 2025. He previously worked at The Post and Courier in Charleston, South Carolina, as a data reporting fellow. He conducts data analysis and creates interactive narratives and graphics to identify investigative stories and add context to reporting. Hongyu holds a master’s degree in data journalism from Columbia University. He previously covered local news for various publications in Boston and Beijing, including The Patriot Ledger, DIG Boston and Sampan Newspaper.
