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Yep, Greensboro, Burlington, Chapel Hill, and half of Durham all dump their treated wastewater upstream of Jordan Lake.
Cary traditionally uses a combination of chlorine and ammonia for treating water. But for a few weeks each March, they switch to chlorine only in order to flush the systems of ammonia and ammonia byproducts. Many other municipalities do similar cleansing cycles.
Imagine that little rainbow star thing above my heas.
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I always figured this was the case, but is that why Cary does that huge chlorine (I think that's what it is) treatment every spring?
For some sort of added cleaning of the system?
It is for cleaning, but it's because they (as well as Raleigh, Durham, and OWASA) all use a combination of chlorine and ammonia normally for better tasting water. (Not sure if there are other reasons). Systems that do this must, by law, once a year change over to all chlorine for a period of time. They all do it in March. If you think the water tastes bad all year, you are very sensitive to it. If it's just recently, it's normal as it's definitely noticeable to most people, especially the beginning of March.
A few years back I had a GF move in with me who was super-sensitive and to ease her mind about my water, I just had it test it myself. I got a full-range kid for about $30, sent it off by mail, got the detailed results 2 weeks later, "all good".
The benefit for this is that you are testing not only your city's water supply, but also all the piping all the way to your sink.
Several cities release treated wastewater in to the Jordan Lake watershed. Unless you're at the absolute top of a watershed, you're drinking treated wastewater.
Apologies that my joke didn't seem to go over. I was referring to untreated sewage as opposed to treated and released back into the watershed.
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