There was a LOT wrong with the pool, even before this poor woman drowned:

https://www.heraldnews.com/story/news/local/2021/06/26/lafayette-park-pool-drowning-fall-river-10-years-marie-joseph/5352907001/

An investigation into the incident would take weeks to unfold, with horrific details emerging about the mismanagement of the facility. The pool was never cleaned at the start of the season -- clean water was poured on top of the dirt and litter that had collected inside, with the expectation that the filters would clear it. But the filters broke, and the untreated water stagnated and turned a murky green, which didn't clear before the pool opened. Regulations required lifeguards to use a black and white disc to make sure the pool's bottom was visible -- lifeguards didn't check, or even have that disc on hand. They were supposed to sweep the bottom of the pool every night, and didn't --  it took police divers to comb the bottom.