How can I detoxify a gravel walkway that my husband sprayed roundup on?

Bekah-
What's with these husbands & roundup!!?? Mine did the same thing b/4 I could find the 10% vinegar. I used regular vinegar which didn't do the job. I would think that several good rains would take care of the gravel area but that doesn't help the groundwater for miles around!
Patty

One of the sad things is I had just bought 20% vinegar. I don't think we are getting rain in the Dallas area very soon.

Go to H-E-B and rush to the kitty litter department. They carry a Hill Country Fare brand kitty litter (blue bag) called Traditional. It is 100% Zeolite, a naturally occurring volcanic clay material. It is highly absorbant. I would mix plenty of it in the stones and then water like crazy. The Zeolite should soak up anything it can find.

What do you do with the zeolite after that? Unfotunately HEB does not have a market here in the Dallas area, I'll look for it in a different brand.

Central Market is an HEB store, although I have not noticed any pet supplies in there. You may want to call them and see what they have. You may also want to try Whole Foods.

A lot of feed stores carry it for deodorizing animal stalls. The last one I bought was called Sweet PDF.