There are two water-related stories of note: First, the Los Angeles Times reports of an authoritative study released by the National Research Council that has concluded that perchlorate (a chemical most often associated with the military, NASA and related contractors) poses “a health threat because it can interfere with the human thyroid gland, which controls how the brain develops in infancy.” That’s pretty straightforward. But the story gets a bit more complicated, when you consider…

Lots has been happening the past week. Here’s a quick catch-up if you’ve missed some DCist. >> NewYoFla’s open, but yet there may be residual Red Line delays. >> Blogger worked into “West Wing” plot line. >> Move over “Mongolian hordes,” there’s a new neighborhood controversy in Foxhall Village (left). >> Where’s the best food in Chinatown … or should we say Chinablock, or Penn Quarter’s Chinese section? >> Traces of poison found in Dalecarlia…

We know there is lead in the water system. But it appears that fears over perchlorate leaking into the Dalecarlia Reservoir may intensify now that “a more refined test” showed that water in the Washington Aqueduct has the presence of the toxic chemical in it, the Post reports. But water officials say there is no cause for alarm as the level of the poison is not significant to pose a health risk. But this discovery…

More Water Woes: Perchlorate doesn’t sound like something you want in your drinking water. But the Post brings us an alert saying that the chemical “known to disrupt the thyroid gland and linked to hormonal dysfunction, developmental delays and infertility” has been found in groundwater near the Dalecarlia Reservoir in Upper Northwest. The Northwest Current newspaper has been all over the issue of World War I-era chemical armaments in the Spring Valley neighborhood and first…