Monticello is a reservoir in the U.S. state of South Carolina, built to provide water for the Virgil C. Summer Nuclear Generating Station.

While it does not dam any major rivers, its outflow flows directly into Parr Reservoir, an artificial lake created along the Broad River, via the Fairfield Pumped Storage power station.

The lake is mainly used to cool the turbines of a nearby nuclear power plant.

Fluctuations in the level of the reservoir are thought to have increased the incidence of induced seismicity in the area.

Therefore, induced seismicity is linked with the initial impoundment, and is not an ongoing issue at this location.