The bag, tied and completely closed, seemed just as likely to contain foam peanuts or medical waste.
Moscow has some 80 old tips, some of which contain radioactive waste and have been built on.
The group said that 7.9 billion gallons of water containing untreated waste escaped from the city's 14 treatment plants last year.
Perhaps the best illustrations available are of the man who fell into a steel tank which had contained radioactive waste.
Any water containing human fecal waste is considered black water.
Inefficient triage also provides challenges to contain health care costs and waste.
But even the possibility that the liquid contained human waste worried some regular Alpine customers.
The blocks, containing radioactive waste with a half-life of 24,000 years had failed in a year.
Environmentalists say the problems with Quinlan's water, which has been found to contain human waste, are among the worst in the nation.
Around the site are broken containers that had contained nuclear waste.