EPA proposes rainwater-trapping rules for D.C. http://ping.fm/uexsj

Singleton said, ...the move added 2 percent to his construction costs but now saves him 18 percent a year in energy and water costs. http://ping.fm/DRXi0

That chlorine smell means trouble in D.C.'s water http://ping.fm/WLSki

...homebuilder settled with the government for $1 million over alleged Clean Water Act violations. http://ping.fm/XXf5h