sortageen, Where do you live where they allow people to dump toxic wastes on their property? Most all have laws for that and products sold that are toxic contain instructions for proper disposal of such.
Maybe you should invest in a RO unit which removes a lot of junk.
I've had one for at least 30 years and use that water for drinking and cooking.
Might not be a 100% but I'm sure it's worth the money.