Just thought I would share a quick lesson learned.

So here is the situation I have been renovating the guest house on the backside of the property the road to get back there is not maintained as in graveled. Running back and forth in soggy conditions my truck started to make some decent sized ruts. To combat this problem I decided to use some discarded railroad timbers from the nearby tracks. Well the rain continued the road got worse and all that nice water decided to go into the ponds which has turned them brown with a film.
The Brown tint I'm assuming is from the suspended clay which is rich in the soils around my house. The film/sheen though after following it back to what I can best tell is the origin point is....The railroad timbers which as we all know are treated with creosote. So exactly how badly did I screw up time or perhaps a seasoned veteran of pond management can tell me or give me an idea of how to best neutralize the situation.