According to Pittsburgh’s Action News on July 29th:

At least 75 customers were without water Tuesday night after a water main broke in Upper St. Clair.

A spokesman for Pennsylvania American Water Company says a 12-inch cast iron pipe broke near the intersection of McMurray Road and Route 19. Water gushed out of the road but flowed almost entirely into a creek, so no homes were damaged.

Upper St. Clair High School, which is directly across the street from the break, was not affected, but St. Clair Country Club did lose water service. The club posted a sign on its door apologizing for the inconvenience to its patrons.

Pennsylvania American has had to deal with at least six water main breaks in the past week, including messes in Baldwin, Carnegie, Munhall, and Pleasant Hills. A company spokesman said it doesn’t appear the incidents are related, but the company will look into whether there is any connection. Many of the pipes are believed to have been several decades old.

Pennsylvania American expects to have the water back on for customers in Upper St. Clair by early morning Wednesday.