Putting up a shop in CA - fire department being a pain

Thanks guys I just got off the phone with a different lady and she said just keep calling around because other people have found companies that will write off on a compaction test for just the dirt and no extra construction is necessary unless the dirt is just naturally too soft. She couldn't give me any recommendations so I'll keep calling around. My neighbor had it done under his foundation before they laid the slab but unfortunately I can't get that company to call me back.

I'm also in Granite Bay hemi71x. @Kern Dog I'm surprised that they had you pay 50 cents per sq/ft. The county told me I needed to go to South Placer fire to pay their mitigation fee, which would be around $1sq/ft. To my surprise I found out that the fee was only necessary if I had an Ag building, whereas the shop required no fee whatsoever other than the $175 intake fee and then this surprise compaction report that will likely cost a grand if everything goes perfectly.