Fuel is a huge variable around the country. Even close by areas can have radically different fuel. There's a map out there showing the different regions, etc. Basically, if you score fuel in or near a major metro area, because they will be stricter on emissions, you will either have a hard time finding non ethanol, or not be able to find it at all.
This is also the time of year the refineries switch from winter blends to summer blends, and the stations are milking out the last dregs before refill from the tankers, which will include the most water in the fuel, ethanol or not, all the tanks get some water in them.
Sounds to me like you got some dregs. Go to a variety of stations and ask before filling your cans, when did you get your last delivery.
And look for a no ethanol station. If it is a trip, buy a lot, and fuel stabilizer treat it, and store it in the shadiest coolest place you have, and fill your smaller cans early in the morning when it is the coolest, to avoid losing all the good stuff to vapor. If you hear "kwoosh"! when you open a can, it's too hot, and you've just lost a lot of the good stuff in the gas.
Ethanol-free gas stations in the U.S. and Canada
I'm lucky I have one near me so I can get pure gas. I pay more for premium no ethanol, but it is worth it to get some fuel that actually works and lasts more than two weeks.
I happened to ask him the other day when I was stocking up, got 12 gallons in my cans, if he ever got burnt by the distributor and got sold some ethanol fuel and he said yes, right after hurricane katrina he got one batch of it. He called them up after he tested it and ripped them a new one and made them come back and pump his tank slap dry and bring him the real stuff.
If I only needed a few gallons a year for two stroke, like a lot of just casual homeowners, i would just buy the canned premix and be done with it. Expensive yes, but you won't suffer killed off small engines either, and the stuff lasts for years.
Some guys run that avgas 100ll, but that is also a crapshoot, a lot of places won't sell it by the can, you need to have a bonafide aery-O-plane right there to buy it. Some will sell it to any random guy with some cans, some won't. I have heard around my area, they won't any more, they stopped doing that a few years ago. You got a plane, sure, here ya go, show up in your ride with some cans, nope, you ain't getting any. If that is your only option, just ask, they can say yes or no.
Often marinas will have no ethanol gas and they aren't as picky selling it by the can.
Then there's racing fuel...you'll have to research that, never bought any, and there's a lot of variables there.
One member here makes his own pure gas by getting the ethanol stuff, saturating it with water, letting it phase separate out overnight, until you can distinctly see the dividing line, and draining off the water and alky from the bottom the next day. The pure gas will be at the top.
That's what I am going to do if the day comes I can't get pure gas.