リッチモンドの水の濁りは、工事に伴うテストによるものだそうです。純粋に見た目の問題で、害はないとのこと。水が澄むまで水道を出しっぱなしにするか、飲む前に冷蔵するようにとのことです。
However, residents of west Richmond may be noticing some local turbidity in their drinking water.
The watermain that supplies the area, which runs along Cambie Street in Vancouver, is being realigned because of Canada Line construction. The region and the City of Richmond are conducting supply and capacity tests on the main, which may stir up sediment and result in cloudy water.
“These impacts are purely aesthetic,” Richmond’s water department said in a news release. “Either run taps until water becomes clear, or refrigerate drinking water ahead of time.”
http://www.canada.com/vancouversun/news/story.html?id=a7f4a1d3-af0d-4d1c-b9c1-12ec29931324&k=42721