The fire service worked through the night to assist with the pumping of toxic water from a disused mine near Truro.
Pumps are currently at full capacity at Wheal Jane. Levels are still rising, but at a slower rate than yesterday.
There are fears that rising levels could pollute the nearby river and Fal Estuary, a marine special area of conservation, although there has been no pollution so far.
More top news
The 250 pound unexploded bomb was recovered, as divers checked the sea bed ready for the construction of Hinkley Point C.
Locals have left flowers and notes to remember 27-year-old Tashan Corpe who was stabbed and killed in Foxhill on Sunday.
The family of George Zographou, who had meningitis, confirmed he has passed away after falling ill at the Boardmasters surfing festival.