Our two big topics this month are commercial plumbing and water quality, and those subjects intersect in some interesting and important ways. In this month’s feature, Stephanie Radel discusses how good plumbing system design is every bit as essential to a building’s water quality as the municipal water supply or treatment equipment. The NIST plumbing research program is the only federal effort coordinating premise-plumbing research with the private sector. As one example, the EPA announced plans to remove drinking water limits on four types of PFAS (forever chemicals) and delay compliance deadlines for two other compounds. The Senate proposal (among other things) reauthorizes drinking water and wastewater infrastructure programs administered by the EPA, including $16.5 billion for the Drinking Water State Revolving Fund, $14 billion for the Clean Water State Revolving Fund and $65 million annually for the Water Infrastructure Finance and Innovation Act (WIFIA) program.