It is claimed that the new levels of pesticide do not pose a risk to health.
Varying levels of water in the Damodar posed problems for transportation.
High levels of contamination may pose major risks to people and the environment.
They concluded that the level of radiation posed no danger to humans in the area.
Still, the researchers noted that even the lower levels of smoke posed risks.
The study stresses that the levels of caesium observed do not pose any risk to health.
Those levels, the state report said, "pose a threat to humans or wildlife that may use the areas with contaminated soil."
But the question that health officials are asking is whether even this low level poses a hazard, and for whom.
The high level of tourism around the lake poses serious threats to its ecosystem.
The company iterated that the levels posed no risk to public or employee safety.