A Watch the Line volunteer put together a map showing all the places that Enbridge Line 3 has had frac-outs. Enbridge is drilling under 21 waters and wetlands using a technique called horizontal directional drilling. The process requires drilling mud to lubricate and cool the drill. The process happens under pressure and the drilling mud can get forced into cracks in the subsurface soils and get pushed to the surface, showing up in on land or in waterways.
The following summarizes all of the frac-outs.