There was a major chemical spill in the 80s that wasn't properly contained so there is a large section near the Garfield train station where high levels of chromium have been found in basements of homes.

We use Clorox Commercial Grade chemicals. 

Cut the plant, put the chemical on the frash cut stump and it kills it down to the roots. 

Chemical treatment is as effective as heat.

For example, the no hazardous chemicals document, SERIOUSLY???!!!

We try usine Comet or Dutch Cleanser powders, bleach, every other chemical and we cannot get the coating to look white like it was before nobody stepped on the coating with their shoes.One more time, every tub I've ever seen has has this coating for at least 48 years.

If they just had the carpets cleaned, you may smell the cleaning chemicals or deodorizer.

I like to start with the least caustic chemicals and the least abrasive scrubbers first then work my way up.

It often corrodes from the inside, especially in hot water lines since the warmth speeds up the otherwise slow chemical process.

As long *** there aren't any dry cleaners, chemical manufacturers or gas stations close to you, there is likely not an issue.