Mayor Wu announces a heat emergency for the City of Boston beginning Monday 7/15 through Wednesday 7/17. For neighborhood cooling centers and ways to stay hydrated use the attached link.
PFAS are chemicals of public health concern. These compounds are persistent in the environment and have been used for decades in a number of everyday products.
Tests of water from MWRA's Quabbin and Wachusetts Reservoirs, which are the source of Boston's potable water, show no more than trace amounts of per- and polyfluoroalkyl substances, together abbreviated as PFAS. In fact, PFAS in MWRA water were too low to be quantified. The sum of the six regulated PFA compounds was zero, below the new MassDEP standard of 20 ng/l.
As expected, given MWRA’s well-protected watersheds and reservoirs, MWRA easily meets the current Massachusetts standard, and will easily meet the new EPA standards. The sum of sampling results for the six Massachusetts regulated PFAS compounds has been zero, below the MassDEP PFAS6 standard of 20 parts per trillion. No more than trace amounts, too low to be reliably quantified, have been detected during multiple sampling rounds.
MWRA will also easily met the new EPA standards for each of the six PFAS compounds EPA will be regulating.