Answer:
A construction company has been called in to divert all excess water flowing into the pond to an unused natural reserve 800 feet away.
Step-by-step explanation:
The sentence clearly shows a preventive action to limit mass movement on the construction site.
Excess water significantly will make the soil saturated and saturated soil is prone to movement. That is, the company's action diverting excess water is definitely a preventive action to limit mass movement in the construction site.