For what it's worth, I didn't have any of those resources available to me when I studied for the PE exam 4 years ago, but I still passed. And there are several others here who did, also. I very well may have taken advantage of one or more of these resources if they had been around at the time, but the point I wanted to make is that you CAN do this yourself. Setting an aggressive study schedule is not a difficult task. Keep it simple and broad. Here is how I did it:
2 months intensive, scheduled studying - 3 hours per day, working your way through the ENVRM and its companion "Practice Problems" book:
- 2 weeks air pollution
- 2 weeks water subjects (water resources, wastewater)
- 2 weeks hazardous and solid waste management
- 2 weeks misc subjects - toxicology, industrial hygeine, etc.
Then, with the time left (if you started today, you would have close to 3 weeks left before the exam), you work your way through other problem books (101 solved problems is the best choice), study up on weaknesses, etc. Schedule a timed practice exam from the PPI practice exams book about 2 weeks prior to the real exam. Go through the NCEES practice exam to get a better feel for what the questions will really be like. Tab your references with post-its as you study, then convert them to "permanent" tabs the last week.
The two-month study schedule is intentionally non-detailed. You will find that some subjects (air and miscellaneous topics, in my case) take only a week to get through, and some (water) take much longer. But it you firmly commit to it, and spend quality time on a daily basis, you CAN do this yourself.
(I'm not trying to take away from anyone's business, but I feel a balanced discussion needs to include the possibility of doing this all by yourself, and proof that many of us have been able to do it this way) :2cents: