I put in at the 58 bridge ramp around 8:00 this morning, nothing unusual. I come in about noon and just at the bridge heading towards the ramp I notice oil on the water. As I get closer to the ramp it is all along the rip rap on the right side coming in. I get to the ramp and the ramp has black tar/oil splashing up on it from the waves. Any ideas what this might have been? This was a pretty good size slick.