If you have older sidewalks take great care with chemical products.

By that I mean an economy that is mainly driven by the chemical and O&G industries.

Houston is home to more than 20 Fortune 500 company headquarters and has the third largest number of Fortune 1000 companies in the world, such as Sysco, Walmart, Waste Management, Memorial Hermann Health System, Kinder Morgan, AT&T, ConocoPhillips, United Airlines.Houston ranks No. 2 in manufacturing GDP in the U.S. with a skilled workforce of more than 230,000 industrial workers in specialties such as fabricated metal, machinery and chemical manufacturing.

It’s kind of like the DSCR rule but a lot harsher.

Costs vary a lot by area, so best to have it inspected and if there is a problem with it, find out replacement costs and ask the seller to pay for it.For use, it is similar to one connected to sewer (don't flush anything other than human waste and TP down the drain), but you need to be careful with chemicals that they use (eg no bleach) and have it pumped regularly (frequency depends on usage).

. :)Now, if you have a specific question, like what risks are there in having a tenant in the wholesale chemical business, or an industrial laundry or a transmission overhaul shop, post them up.

This would also identify water table depth, soil liquefaction, soil expansivity (soil that expands or shrinks), or soil chemical content.

No heavy chemicals should go down the drain.

I sent them a link with a non-chemical alternative method to use a less harmful way to get rid of them, and suggested they take one to a nursery to see if they actually ARE dangerous, advised to supervise their child and dogs, just like they would in a local park, but I'm not about to run back and forth to the property everytime a naturally-occuring plant pops up on the lawn.   

During my research, I've been focusing on the potential risks associated with the use of laundry chemicals and their potential impact on the surrounding areas, particularly on the upper floors.