***Q. Obviously I missed where sewage from an industrial plant doesn't fall under RCRA - I thought it was funny that the one I couldn't find a definite answer to was the only one where my guess made it true. Can you tell me where the answer is?
A. It's one of the exemptions. I should have put "domestic sewage" but in fact even hazardous waste that goes directly from the process stream down the drainpipe does not come under RCRA, it is a CWA (Clean Water Act), NPDES (National Pollution Discharge Elimination System) problem, not RCRA. If you take it out of the process stream, put it in barrels, then later pour it into the sewer, then it is certainly a RCRA and probably a CWA violation.]

***Q.I have a question related to RCRA. I know that RCRA is a regulator of hazardous waste. Does RCRA regulate Non-hazardous waste?
A. That is a good question on terminology. RCRA has two relevant parts, Subtitle C and Subtitle D. We spend all our time talking about “C” which is THE hazardous waste law. However D controls non-hazardous waste landfills. This is a stranger situation, since RCRA is a federal law and state law controls landfills. Hazardous waste is a federal issue because of its history of being transported across state lines. RCRA “D” acknowledges the states have primacy, and sets some very broad standards for non-hazardous landfills.

**Q. the thing that was not clear for me - what is the reason for exclusion of some
articles form RCRA? like oil production waste and sewage?
A. For the most part, these are things that are regulated under other laws. Sewage, for example, is regulated under the Clean Water Act.

Q. Still foggy on the CESQG, SQG and LQG (Quantity Generator) categories - do the volumes apply to the individual facility or the entire organization? For example, a single USAF station may generate less than 220 lbs/month, but the nationwide USAF is a LQG.
A. The answer is per "site" or "facility." Here is a fine point for lawyers regarding large industrial facilities that have roads and processes separated by miles. Also, the status is determined by the aggregate of all HW from the facility. The status can change from month to month.

Q. If you build a waste site on your own property, does the disposal of waste to that site still fall under the jurisdiction of the RCRA? And the transport of the waste from the point source to the dump? I suppose that practically speaking it is not viably to try and enforce what a person is doing on his own property as long as he keeps it a closed system.
Your own site and your own waste.
First: Regular "solid waste" or hazardous chemicals (not wastes) do not come under RCRA. If you are a "homeowner" you are exempt from most of the federal and state regulations. Local planning and zoning laws, fire codes, and nuisance laws may stop or regulate you.
Second: If it is a hazardous waste, you somehow had to generate it. For example, if you spill a tank of gasoline on the soil, dig it up and put it in the back of your pickup truck, you have generated a hazardous waste and would have to dispose of it properly. Now suppose you let the gasoline stand on the ground and don't pick it up? In most states, if the volume is large, you are required to report spills of oil and hazardous chemicals and then clean them up. It would be rare for a homeowner to be over those quantity thresholds.
If you are an industry, but do not generate hazardous waste routinely, but generate some due to an accident, you need to clean it up. If you can't just "put it back in the tank" you have generated a "waste." You get a contractor, who will contact the environmental agencies and get a "generator number" just for the cleanup. It then goes into the RCRA system.