Here are some photos from projects I managed earlier in my career.  I have extensive experience with the toughest scenarios.  Disaster Recovery was a career seeing people at their worst following catastrophes.  Floating Oil Tanks following flood events, Gasoline tanker rollovers, and giant feats of Engineering to support structures in the name of Environmental cleanups.  I've supported, raised, and moved houses to facilitate soil remediation work.  Have Happy Valley Environmental assist with a Soil inspection to determine the status of your UST system and identify Soil contamination if it is present.  I do not perform any follow-up work so my work is unbiased and unskewed.  Trust in Happy Valleys experience.  You're in good hands.