But, The umbrella should be equal your net worth if you’re thinking of protecting yourself from some sort of natural gas explosion or running over a kid in your car. 

Try not to damage your walls during move in and move out, hopefully hook up correctly every time and not cause a fire, water leak or gas explosion doing something they may not have ever done before. 

@Timothy Thorne, you should check out the book Traction: How Any Startup Can Achieve Explosive Customer Growth.

Proximity to High Pressure Gas Lines A dwelling or related property improvement near high-pressure gas, liquid petroleum pipelines or other volatile and explosive products, both aboveground and subsurface, must be located more than 10 feet from the nearest boundary of the pipeline easement.   

Additionally, you're talking about adding low wage jobs, not ideal for an explosion of real estate growth.

Canyon Lake is par, not an explosion as some would believe has 44 Sex Offenders and Schools which have a poor rating.

I got VERY VERY lucky when I sold my bldg on Bryant (bet 2nd & 3rd) but I cant even imagine how much it has appreciated since 2015 when I sold - I got scared that I didn't have the experience to play with the big boys in the SoMa explosion.....   

If it is not filled with explosives ready to blow up the neighborhood so what? 

Explosive and even potentially violent. 

My guess is it's construction activity (explosives) since I can't pinpoint anything else.