
Below 15, the level that requires action
10 public water companies list Arecibo as a place they supply. The biggest is Arecibo Urbano, with about 61,626 people. The highest latest result among Arecibo's water companies is 6 parts per billion, at Arecibo Urbano. None of the 5 with results was above 15 at its latest test. 5 have no lead test results on file.