"The city hired West Valley Construction Co. to isolate and seal the pipe at both ends, and inject a high concentration of chlorine to decontaminate the pipe for 24 hours starting Monday morning. The chlorine is then flushed out and tested for bacteria twice, 12 hours apart."
"It's a very unique, extraordinary situation. This is not anything that the Water Board has apparently dealt with previously; cement slurry getting into a live water main. And that's why we are trying this next approach to see if this will work."
"Residents pressed city officials on why the problem has taken so long to fix. They were relieved when they heard it was going to a boil water notice. At the same time, there were concerns."
After a ruptured water main left a Mountain View neighborhood without clean water, residents can now use tap water after boiling it. The city is conducting 'super chlorination' to kill remaining bacteria. A contractor has been hired to seal the pipe and inject chlorine for decontamination. Testing for bacteria will follow. A boil water notice remains in effect for other affected homes, allowing residents to shower and do laundry, but drinking water must be boiled first.
Read at Kqed
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