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Like I mentioned before, we service lots of big engines with lots of oil. We buy double headed diaphram pumps that have 1" inlet and outlets, pump around 50 gallons per minute (advertised 50 but they actually do around 25-30 gpm on cold oil). They work real well and We buy them new around $350.00. Gear pumps, unless really large do not move much volume. The "best" pump we ever used is called an Orfendoerfer Pump (spelling?). It's a positive displacement pump, has a metal screw as the drive, and a large rubber sleeve over the screw. This pump is fast, doesn't stop up when trash gets in it, and doesn't require alot of HP. We used to buy them from Graingers. We don't use them now because we have air compressors on all the service trucks and it's 1 less engine to mess with.
Used Engine oil is not considered a hazardous material, until it is spilled (doesn't that make sense?). I would have to look it up again, however several years ago 110 gallons was the limit on hauling used oil without permits, manifest, and other regulatory stuff. They may have reduced it since then. Our guys used to haul used oil back to large storage tanks at our shop after they did a service however rules and regulations have become so strict and change everytime you turn around, and then we had the containment areas built, then the rainwater runoff inspections, quarterly core samples, and so on, so now we "pay" to have our used oil picked up and hauled off at a rate of 50 cents per gallon.
Our place is spotless, no oil on the ground, and well maintained and the EPA stays on our *ss, however our industrial neighbors' lot is unbearable, nasty, and not safe at all and nobody hounds them?
Being an individual, the EPA would probably never know how much oil you kept on your place, "however" Most places have to document who hauled off what, how much, and where did it go on a manifest. It's called Cradle to Grave, if they aren't doing it, then they are not following the guidelines.
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