Thank you very much. Is there a special type of exterminator for this?

I agree that those look like insect holes, not "spots." What happens when you probe them with a small piece of wire like a paper clip?

The strange thing these are new floors. However the floors in the kitchen are new and I wonder if that is how the infestation started.

Looks like stain spots, don't see any insect holes. Scratch it off with a razor. You can touch up with a stain pen afterwards, followed up with clear laquer pen.

Thank you everyone. I reached out to my contractor who is trying to belittle me for complaining months after the job was completed. Also reached out to an exterminator and a floor company.

Let us know, what it turns out to be, please.

Exterminator coming Tuesday. New holes in new kitchen floor. looks like powderpost beetle holes? i see white inside holes.

Is contractor reaponsible for the wood?

Hi - the first picture was the result of a "chemical reaction between iron, water, and wood tannins". Years ago, someone put nails on the wood floor and then covered the wood with linoleum. We used a water based polyurethane which caused the dots. Would have used oil base had I known. The last picture turns out to be holes in my new kitchen wood floor due to powderpost beetles. I am very upset to say the least. My husband is against tearing out the floor and we don't know if this is an active infestation. Worried my entire floor will be filled with holes.

What did the exterminator say? Treatable?

He said the treatment is to replace the boards that are affected but it may turn out not to be active. He would not write up his findings because he did not want to be sued by contractor. I think we should tell the contractor.

Not sure how he could be sued if he documented his findings without assigning causation or blame?

Joan, something doesnt sound right with that exterminator. He can certainly write down his findings, and not worry about being sued. I just might call another one. Both floors look to have the same thing, so I am doubting that holes in kitchen are caused because someone put nails and covered with linoleum. Many people uncover their hardwood floors, that have been nailed down, and refinish with water based these days, and do not have that problem. Something about this exterminator, just doesnt sound right. If you have powder post beatles, of course they will spread, and wont stop spreading, until they are all treated and die out. Please get a second opinion from another exterminator. I think this guy just didnt know, and doesnt want to admit it. Hopefully you are aware, that powder post beatles, can also attack all your furniture in your house. You need to act fast, to prevent this.