Equals .3 grams per square mile - an amount that can't be measured. Which also makes it meaningless. Really wish we could shut down the whole EPA scam so that slimes like these can't use the excuse of overstepping federal authority to impose restrictions on the people.
I think that is probably a low estimate. I just figured I shoot about 50 rounds a week of .45ACP alone. 230x50 is 11500 grains divided by 7000 is 1.64 pounds a week x 52 weeks is about 85 pounds of .45. I will also shoot another 50 through an AR or AK, plus various hunting rifles up to a .416, plus vast .22 bullets, then shotshells at 16 shots to a pound. I probably put 600 pounds out myself. I do my part though, and shoot some Barnes bullets (all copper) on a lot of big game. The whole idea is BS anyway.