Sewage spill monitors extend reach to cover all England

Overflows are only meant to spill sewage after heavy rain, but last year saw 1.75 million hours of dischargesOverflows are only meant to spill sewage after heavy rain, but last year saw 1.75 million hours of dischargesOverflows are only meant to spill sewage after heavy rain, but last year saw 1.75 million hours of discharges