Thought I would close this out. My contractor came out and swabbed the PVC pipe and pushed out some debris so the 8" PVC pipe spillway started running. The bad news is the standpipe seems to be clogged with something and we cannot get it free. Standpipe has been there since pond was impounded in 1972. When the PVC spillway started running the pond level went back to normal. Still need to get that emergency spillway in place.