… More than 50 years after the Safe Drinking Water Act was passed to ensure that Americans’ water is free from harmful bacteria, lead and other dangerous substances, millions of people living in mobile home parks can’t always count on those basic protections. A review by The Associated Press found that nearly 70% of mobile home parks running their own water systems violated safe drinking water rules in the past five years, a higher rate than utilities that supply water for cities and towns, according to Environmental Protection Agency data. … One July day in 2021, officials with the EPA were out investigating sky-high arsenic levels in the tap water at Oasis Mobile Home Park in the Southern California desert when they realized the problem went way beyond just one place. … At some [other parks], testing found high levels of cancer-causing arsenic in the water that had been provided to residents for years.

Other drinking water contamination news:

• The Guardian (London, U.K.): White House rescinds $20m for clean water in pesticide-contaminated rural California
• National Law Review: Microplastics under the microscope: Federal and California proposals target microplastics
• The Washington Post: Takeaways from AP’s report on water quality and safety at US mobile home parks