I shut it off, opened all the windows, and called the water company.
They matter-of-factly told me there was an "algae bloom" in the Delaware River, and they had to chlorinate the heck out of the water.
That's when I started buying bottled water . . .
What cracks me up is the people who've lived here all their lives think their tap water is normal. In the grocery store they try to talk me out of "wasting" my money on drinking water. When a neon greenish-yellow cloud floated overhead one day, most people just thought it was kewl! One of the local diners is across the street from DuPont. They run train cars full of chlorine back and forth all day in front of the diner. Sometimes the stench is overpowering, but everybody just keeps eating. Another diner has a leak in it's septic system, draining into their tap water. They've had contaminated tap water for years. The locals all know this, and they still eat there.