Emergency work to prevent a damaged dam from bursting is continuing, as residents refusing to evacuate their homes were criticised for putting lives at risk.
A senior police officer warned there could be “catastrophic” consequences if the dam at Toddbrook Reservoir collapses while people remain within the evacuation zone in the Derbyshire town of Whaley Bridge.
Thirty-one people, including a “small number” who were initially evacuated but have since returned to their homes, remained in 22 properties in the town on Sunday evening.
Deputy chief constable Rachel Swann told a residents meeting those who have defied orders to leave are not only putting their own lives at risk, but also those of emergency services staff who may have to look for them if the dam does break.
She said: “We’ve not evacuated this for no reason.
“We’ve evacuated this because there is real prospect the dam could fail and if it fails it is catastrophic. People would die if they if they were in that evacuation zone.
In response to a question from a resident who said he had been burgled, the officer said the force was using a drone to patrol the streets.
Water levels at the reservoir have been reduced by more than 3.5 metres and, fortunately for workers at the site, Sunday’s forecast of thunderstorms did not materialise.
The Met Office said there was a risk of some showers overnight into Monday, but these would likely amount to just one or two millimetres of rainfall in the area.
Derbyshire chief fire officer Terry McDermott said specialist engineers have monitored the dam wall 24 hours a day with lasers and are reassured by their assessment.
He said: “There has been no significant deflection in the dam wall according to the feedback we’ve had so far, which gives us some reassurance.”
He added that a seven-day estimate for how long people would be out of their homes was a “worst case scenario”.
“So those people who are remain in that zone at putting their lives at risk.
“They are also putting the lives of the responders, primarily the police, at risk because we have to keep going in and speaking to them and asking them to leave.”