What is the odor I smell sometimes when I am downtown?

The odor you smell may be emanating from the Wastewater Treatment Facility at the south end of Green Street.  This facility processes the waste water from the Water & Sewer District in Plymouth.  When the weather is in a low pressure condition, the odors do not dissipate as quickly and an ammonia- like smell can be noticed throughout the southern area of downtown.  As soon as the weather changes, the odor usually disappears.