Plus about $100K clean-up cost (luckily for them their insurance paid because it had satisfied the insurance condition of hitting the water line or ground water)

Assuming the property is in the Denver area, the issue is likely drainage and ground water.

Much of Ag can sustain as they are pumping ground water like crazy.

Is it the risk of environmental cleanup liability if there's soil or groundwater contamination?

Worst of all, it was ground water--coming up from underneath the slab, and there was no easy way to stop the flooding.Adding insult to injury was the fact that this was the third time in six monthsthe house had flooded.

I am dealing with a customer who is pissed off , its a waterfront house , took over 1 year for permits ,problems with ground water and  prices went up for him during that time , and the above average rainfall in Maryland has slowed things down .  

Rima and I keep people out of trouble with the highly-regulated toxic and hazardous materials - asbestos, lead, VOCs, soil and groundwater contamination, plus indoor air quality and the almost unregulated mold.  

The water coming through the wall is due to voids in the wall, as well as, the hydrostatic pressure from the groundwater under the house.

Also differnernt cities and municipalities have vastley different rules concerning zoning, utilities, curb and gutter, ground water run-off etc.  

You can bill +$30 a month for "park sewage"But Well water is too much liability,  Imagine contaminated ground water is found and now +50 new lawsuits come your way.