A more intrusive approach would be to Google the owner name and see if you can find relatives and skip trace and call them.

.), and anything else that is important to them.Ask follow-up questions to dig deeper and learn more (without being too intrusive) then jot down any relevant notes so that you can reference them down the line during your follow-up calls.

Root intrusion is rare with plastic pipe because that means a crack that's going to admit soil as well and eventually bust completely, so if you have roots in PVC you might as well plan to excavate.

They are very intrusive. 

A very in trusive law, that doesn't accomplish much exept gives this obscure agency a lot of power.

Oil rights, timber rights and the such, the entire point of them is it's NOT intrusive upon the land owners current operation, it takes nothing away from them, it's COMPLIMENTARY, it's in place of them getting the resources out there to do whatever action of extraction it is, and they retain 100% of the land. 

There are foundation cracks near the area in question, but I haven't received any reports of water intrusion. 

If they find out, they can get really intrusive and they do not care about your circumstance.

We just discovered a crack in the concrete slab foundation that is a borderline major problem:- It is a vertical crack about 1/8 inch wide that is at least 9ft long, which is causing a 3/4 inch drop in the flooring and some evidence of old (luckily) limited moisture and termite intrusion. - BUT, it also appears old and probably a symptom of the original house settling.

Houses that sustained fire events have long term consequences including structural damage and mold that results from water intrusion required to extinguish the fire.