Go on google maps and look at that actual 160 acre dump. 42.88549264899052, -106.29499697188304 for GPS coordinates.

Now look half a mile to the left of it and see the 600 acre lake of petroleum runoff BP left there - 42.89420222314314, -106.31662630390747

Now look at the largest open pit mine in the world, which is less than 60 miles away - 43.62154443029654, -105.30131864034631

and tell me that the dump for wind turbines is the problem