Millvale is the first borough in Pennsylvania to attain the highest level in a program that recognizes achievement in sustainability. . . “Beyond saving tax dollars and making sure our municipality is running more efficiently, this is a recognition that a small town like Millvale can work hard and be a leader in the state,” said Millvale sustainability coordinator Zaheen Hussain. . . In southwestern Pennsylvania, only Millvale and Cranberry Township in Butler County are platinum communities.