The Clean Water Act would not regulate which of the following scenarios? (3 points)

A tanker that has run aground leaks petroleum into a bay.

An algal bloom appears in a pond surrounded by crop fields.

Rusting pipes in an apartment contaminate tap water with copper.

Effluent from a factory raises the water temperature in a river by 2°C.

Sediment disturbed by swimmers in a lake makes the water increasingly turbid.