Overview
- The White House‑ordered renovation was finished and the basin refilled in early June, and National Park Service papers say a cut to the pool’s new liner was reported to Park Police on June 9.
- Days after refill crews saw heavy algae growth and pieces of the dark blue spray‑on liner delaminating and floating, triggering chemical treatments, ozone/nanobubble cleaning and manual vacuuming.
- Authorities say multiple arrests and federal citations followed as investigators reviewed surveillance footage; the Park Service confirmed a liner cut in a June 24 court filing and plans to drain the pool after July Fourth for warranty repairs.
- Engineers and scientists cited in coverage say the problem likely stemmed from the decision to use a dark blue liner plus nutrient‑rich tap water and unchanged shallow circulation pipes, which raise water temperature and feed algae growth.
- The fast‑track, no‑bid project ballooned into a procurement and preservation dispute as one experienced contractor declined the work as unfeasible, lawsuits and congressional questions continued, and planners now expect fuller pipe replacement later this year.