The Goa State Pollution Control Board (GSPCB) has directed 19 mines to shut down their operations in the absence of consent under the Air and Water Pollution Control Act.
GSPCB Chairman Simon De Souza said the mines have been asked to shut down their operations immediately after receiving the notice.
"They will be allowed to restart only after getting the Consent under Air and Water Pollution Control Act," he said.
Board officials stated that the notice for 16 more mines to stop operations would also be issued anytime soon.
In all, 35 out of about 105 mines in the state were found to be operating without the mandatory consent under Environment laws.
The Bombay High Court had recently asked GSPCB to suspend operations of these mines, which are working without getting consent under the Act. The closure of these mines would prove a major setback for the iron ore export trade.
Goa exported 54 million metric tones of ore during the last financial year collecting royalty of Rs 900 crore.
De souza said that disobeying notices would mean facing contempt of High Court by the mines.
Several mines, which are operating around wildlife sanctuaries and forest areas, have not been given clearance by the Forest Department, which is mandatory to get the consent under the Act.
Forest officials have said that the NOC for these mines can be given only after deciding on the buffer zone around wildlife sanctuaries and forest areas.
Principal Additional chief Conservator of Forest Dr Shashi Kumar has written to the state government stating that the Forest Department will have to refer to these mining cases to the National Wildlife Board under Ministry of Environment and Forest (MoEF) before granting them NOC.