The other little trick I discovered is that I made friends being a regular customer with one or two farmers that I know don't use chemicals and the produce is practically organic. I asked them which other farmers they know who don't use chemicals. I check this information yearly or even every six months as circumstances are changing.
The people who argue against organic are not correct. There is pollution everywhere in the air, so even the organic products are not perfect, but their nutritional value is a mile ahead of chemically treated or produced products. If you have any doubts, please know that you need to eat organic if you want to preserve or repair your health.