If they list the 1989 version as a reference for the exam, then I believe that's the one you need. I couldn't find a copy of that book anywhere when I took the exam, but still was able to pass without it.
I passeed on 4th try. One thing that I think helped me was reading and rereading each question to make sure I was answering the question they were asking (even sometimes underlining it in the exam booklet). You might know how to do a problem, and feel good about your answer, but perhaps they...
Last time around, I received the results on Saturday, after the Thursday meeting. Some people in northern CA were posting on Friday that they received their results. It appears that last time they actually went out Thursday after the meeting.
If you check out the NCEES site, they don't even list solid or hazardous waste as a topic for testing.
http://www.ncees.org/exams/professional/pe..._exam_specs.pdf
http://www.ncees.org/exams/professional/pe..._exam_specs.pdf