We’re freshening up our water testing
First things first: we’re pleased to report that Cranberry’s water quality is excellent. The results of our state-mandated water tests for 2018, included here, document that fact. At the same time, we also want you to know that the number of new government regulations designed to safeguard America’s water safety keeps growing. One of them recently came into force. 2018 Water Quality Report
Public water systems are already required to maintain a certain level of disinfectant. The focus of the new regulation concerns the consistency of that chlorination, which can vary depending on where in a system’s distribution lines the water is drawn. The flip side of that issue concerns Trihalomethanes (THMs) – by-products of the chlorine used to disinfect drinking water – which tend to build up over time, especially in slow-moving water. THMs have been associated with adverse health effects.
So the Township established a handful of sampling stations to check on disinfectant and THM levels in key parts of the network. That information allowed us to satisfy state requirements and manage our system’s water treatment more effectively.
But regulations can change. Until last year, we managed our water system based on the number of residents that subscribe to our water service. Of the 12,000 or so households in Cranberry, about 1,000 use water from their own wells, so in our calculations, we subtracted them from the total. But then last fall, Chapter 109 of the state’s Safe Drinking Water Regulations were updated. Its results affected the way we count Cranberry’s water customers.
For example, we now count people commuting into Cranberry for work, but we only count them as one-third of a person. At the same time, we subtract a similar fraction for Cranberry residents who commute out of the Township for work. Then we add in the guests staying at Cranberry’s 13 hotels, the patrons of Cranberry’s 80 restaurants, the people admitted to the local hospital, and shoppers or visitors passing through our community. In the end, when you crunch all those numbers, we find ourselves serving a population significantly greater than our customer base.
One outcome of our re-calculation was that we had to significantly expand the number and breadth of our sampling stations. So we did. We now have 40-plus sampling points scattered throughout the system, with a particular emphasis on lines at the perimeter of the Township, where slow-moving water tends to accumulate, along with THMs. Those results, in turn, reinforced our strategy of accelerating turnover of the water in our system along with the arsenal of methods we use to achieve that.
As a result, we are pleased to report once again that water from Cranberry Township continues to be safe, fresh, abundant, and poised to continue meeting the needs of our residents, businesses and guests, well into the future.
We welcome public involvement on issues concerning our water and wastewater systems. Meetings of the Board of Supervisors are listed on the web calendar. An opportunity for public comment is always on the agenda.
Review Water Quality Reports from past years