Censor.NET reports referring to Ukrainski Novyny quoting Hroisman as saying at a meeting with city, town and village mayors on Tuesday.
The prime minister urged all the attendees to support Lviv in solving the problem.
"I want each of you to support the mayor of Lviv and help solve the problem. I have no other recommendations on this matter," Hroisman said.
He noted he was aware of an agreement between the Lviv authorities and a French company, the owner of waste processing plants. Hroisman added that 1.8 billion hryvnia ($66.361 million) of Lviv's development budget was enough for establishing a landfill and managing garbage. The prime minister assured Sadovyi of his entire support.
Sadovyi, in turn, asked Hroisman to help Lviv, stressing the city will not be able to tackle the garbage issue without the government support.
The Lviv mayor admitted a state of emergency could be introduced in the city. He asked the colleagues to render assistance rather than using the situation for political gains.
A critical situation occurred around the garbage disposal in the Lviv region due to the shut down of the Hrybovytske landfill following a waste slide and the death of people in May 2016.