I read news about this two days ago or so, the Chinese government stopped providing clean water from that river to millions of Chinese in one of
China's largest cities because of the chemical plant exploding and contaminating the drinking water supply.
Here is a link with some excerpts.

Panic spread through one of China's largest cities Tuesday as residents hoarded water and food ahead of a four-day water stoppage due to fears
that a chemical plant explosion had contaminated drinking supplies.
"In order to safeguard water safety in the urban districts, the municipal government has decided to provisionally stop supplying water to the public
water network," the government of Harbin city, the capital of the northeastern province of Heilongjiang, said in a statement.
The order follows a November 13 explosion at a petrochemical plant in Jilin city, 380 kilometers (230 miles) up the Songhua river from Harbin.
The explosion killed at least five people and resulted in the temporary evacuation of tens of thousands of others who were forced to flee a cloud of
toxic smoke.
........................
Locals aware of the pending water stoppage began hoarding water and food as early as Sunday, amid government pronouncements telling people to stay
calm and "stop listening to rumors," state press reports said.

Excerpted from.
www.sinodaily.com...
I really hope they find a way to stop the spread of this chemical in the river and that they are able to clean it up soon.
[edit on 24-11-2005 by Muaddib]