Its original location, on Lafayette Avenue near Lafayette Square, has remained open, though with limited inventory. And the Downtown West location has been open.
The city said the level of free ammonia in the raw groundwater, which is vital for disinfecting the water, has dropped to a third of what it should be.
According to the listing on the department's website, the jobs are nine-and-a-half month per year positions working with students from kindergarten to fifth grade.