The water system that the city of San Francisco is using to provide drinking water to the homeless and the underprivileged has been tested at least twice, a city official told NBC Bay Area.
The water treatment system in San Franciscos main water system was tested twice, and the results of the tests were “positive,” said the official.
It was tested on June 14, the official said.
The system in question, the San Francisco Municipal Water District, has about 1,300 employees and is overseen by the state Department of Water Resources.
The official did not have details on the type of testing, but the water district said in a statement that the tests “were positive for water quality issues.”
San Francisco has been using the water supply to supply the city’s homeless population since 2015.
It has been one of the few cities that have not switched to bottled water, and San Francisco officials have been using bottled water to supplement water for the homeless.
The system has also been used to treat sewage in the city, and there are a number of water systems around the city that also have tested positive for contaminants, according to NBC Bay, citing the San Jose Mercury News.
The testing was a first for San Francisco.
The city is currently testing for contaminants in the San Mateo River.
The city of Santa Clara is also testing for high levels of contaminants in its water supply, according the newspaper.