About 2 years ago, we had our deck ripped out and discovered a raccoon latrine under one section. Raccoons carry a specific roundworm that can be very destructive if eggs hatch in the human body and larvae migrates around. There are very few documented cases, but it is known to be underreported to the CDC. MOst of the victims have been children and very young children, b/c they put dirt in their mouth. It is believed you need to eat a fairly large amount of poop or poopy soil. The eggs basically are viable forever.
Because I had a 2 year old at the time, we cleaned the poop and the entire area under the deck as recommended by the CDC-- the only thing that kills the eggs is heat or boiling water, so we used a propane torch in the area (it was in gravel and soil, against the foundation of the house, so no real fire hazard). I have forced everyone to avoid the area ever since, but my husband over time threw some stuff in there-- including a fire pit. It was never in the same spot when the poop was there, but it was in the spot that we had cleaned of poop.
We decided to finally refinish and clean up the area a couple weekends ago. I weeded a bit, torched again, and cleaned up the fire pit by pouring boiling water over it several times and even torching it parts of it; I can't entirely remember.
The eggs are microscopic so there is no way of telling if I did a good job or got all the eggs, any of the times I did clean up. And therein lies the problem.
My husband took the firepit out onto the grass the other day, and I have been plagued with thoughts of contamination ever since. Our child is now 4, still runs around and picks things off the ground, and she also has friends over. If there are eggs there, I am just so worried one of them could accidentally get something in the mouth. I do realize there would only be trace elements most likely, like particles.
My husband thinks that we did what the cdc said and that we cleaned with heat and that the grass is fine and we should just use it as normal.
I simply can't believe that the cleaning I did was enough, but there is a part of me that thinks that is anxiety talking. I don't know if I should rip out the grass where the fire pit is and re-sod, or if I will never be satisfied of cleanliness because giving in once again will just raise more contamination fears. I have asked everyone to stay off the grass in the back until I make a decision about whether to clean it more or not. If I didn't have the 4 year old, I would be okay with using the grass.
Please, please help me work through this.