Title: Thirst
Description: A tanker carrying the most deadly weedkiller ever invented crashes into a Welsh reservoir which feeds one of the most densely populated areas of Britain. 
It was too late to cut off the supply. They could only wait for the horror to strike. Thousands were already doomed to the terrible, lingering death - thousands more would die in the ensuing pandemonium as the people panicked and the authorities decleared marshall law........
Subjects: Horror
Places: Wales + Midlands of England.
Time periods: Late 1970s