Officials in the Denver suburb of Englewood shut down the city library last week within a couple of hours of getting test results Wednesday showing that the contamination in the facility’s restrooms exceeded state thresholds, city spokesman Chris Harguth said.It is the latest example of the balancing act urban libraries have to navigate between making their facilities be welcoming to all while keeping them clean and safe.When a rash of overdoses in libraries were reported in the mid 2010s as the opioid crisis grew across the United States, some libraries were equipped with the antidote Naloxone, known by the brand name Narcan.Drug use is not common in the Englewood library, but reports of it have increased in recent months as colder weather led more people to seek shelter there, with only a small number of them using, library director Christina Underhill said.They also pointed out that standards for how much meth contamination is acceptable were developed with an eye toward homes, where frequent exposure is more likely than in public buildings."