Thank You for your quick response. The concrete contractor in this case was not hired by me, but by my landscaper. I expressed concern at the time about the concrete contractor because he seemed to be rushing to just get it done and basically didn't give me the time of day when i asked him if we should maybe wait until spring (MN) at least to pour. He is saying he put down class 5 and never does anything else?? My builder on the other hand has been excellent all along and I think your unbiased answer has only reinforced my feeling that this is on the concrete contractor. Would you suggest I hire an engineer to look at the soil? I know it is not compacted at all because i can basically stick a 1 inch steel rod 12 feet down without even needing a hammer. Basically trying to decide what my next step of action should be. Let me know your thoughts and thanks again.
You have confirmed my thoughts. I appreciate it and have given you an excellent rating.