SWANA certification — studying for the Manager of Landfill Operations exam

Passed MLO with a 78 after 12 weeks of prep. The RCRA and Subtitle D regulations are tested more deeply than you'd expect. Know the specific percentage thresholds and distance requirements.

Gas collection questions usually come down to pressure management and cover design. If you can explain why you adjust extraction pressures under different conditions you'll nail those.

Technical sections clicked for me when I stopped memorizing facts and started drawing system diagrams. Trace the leachate path from generation to treatment — suddenly the questions made sense.

Honestly I almost bailed on this one. I'd been in operations nine years too and figured the exam would mostly be stuff I already knew, but the compliance and environmental sections kicked my teeth in. I sat at 70-72% on practice tests for weeks and started telling myself maybe I just wasn't a test person. What flipped it for me was treating the regulatory parts like their own separate subject instead of cramming them in with the operations material I already had down. I stopped reviewing what I knew and only drilled what I kept missing.

The other thing that helped was just doing more questions, over and over, until the wording stopped tripping me up. I ran through these free solid waste management certification question and answers on repeat and that's where my score actually started climbing. By exam day I wasn't even nervous about the compliance stuff anymore. You've got 10 weeks and you're already in the low 70s, so don't talk yourself out of it like I almost did. Keep grinding the sections you hate and you'll get there.

What helped me most wasn't just knowing the right answer, it was figuring out exactly why the wrong ones were wrong. Like if a question has four options and you can look at B and C and say "okay B is wrong because that applies to transfer stations not landfills, and C is off because that regulation got updated in the Clean Air Act amendments," you've actually learned something. I do this even when I get questions right, because sometimes you pick the right answer for the wrong reason and that'll bite you later. The regulatory sections especially -- you need to understand the logic behind the rules, not just the letter of them.

Also worth branching out to adjacent material while you're at it. I spent some time on swana waste collection content even though it wasn't my focus, and it gave me context that made the MLO environmental compliance stuff click better. Ten weeks is solid. At 70-72% you're closer than you think -- once the "why" starts locking in, scores jump fast.

The regulatory sections tripped me up too at first, but honestly the biggest shift for me was stopping to figure out why a wrong answer is wrong instead of just flagging it and moving on. Like if you miss a question on liner system requirements, don't just note the right answer -- dig into what made the distractor plausible. Usually it's a rule that applies in a different context, and once you see that pattern you stop second-guessing yourself on the real thing. I'd also recommend drilling adjacent topic areas like swana waste collection even if it's not your main credential, because the regulatory overlap is real and it reinforces the environmental compliance logic from a different angle.

70-72% with 10 weeks left is a solid position, especially with your field experience. The gap between that and passing is almost always conceptual clarity on the edge cases, not raw memorization. Keep doing the wrong-answer analysis and you'll see that percentage climb pretty fast.

I just passed my MLO last month and honestly the thing that made the difference was stopping treating the regulatory sections like reading and starting treating them like memorization. I'd skim through the compliance chapters thinking I understood the concepts, but understanding isn't the same as being able to recall exact thresholds and timelines under pressure. Once I switched to flashcards for anything with a number attached, my practice scores jumped from 71% to 83% in about two weeks.

Also, don't sleep on the collection side of the material even if you're focused on landfill ops. A few questions caught me off guard on stuff I'd kind of written off as basic. I actually went back and did some swana waste collection practice to fill those gaps and it was worth it. You've got 10 weeks, you're in good shape, just don't let the familiar stuff fool you into skipping the review.