In particular, do not place on your company's stationary any claim made by the manufacturer of products you use. Do so before you hire them. Pick up all tools. Leave no mess. This helps avoid hitting hidden water pipes.
Some situations call for no soil treatment with conventional termiticides.
Instead, baits may be needed. This way, the chemical does not flow the length of the trench and end up in one puddle. This way, if the chemical runs out the sides it will be directed into a trench. It's just one more assurance of safety. Use them when pulling hoses around the corner of a building.