A left shift is a phrase used to note that there are a high number of young, immature white blood cells present. Most commonly, this means that there is an infection or inflammation present and the bone marrow is producing more WBCs and releasing them into the blood before they are fully mature.
the gas line should be at least 30 inches deep. But may vary according to how strict your local safety codes are for preventing homeowners from hitting the line while digging in a tree or fence post. Call a heating/plumbing contractor.
Since pipelines are buried underground, pipeline companies use line markers like those shown to the right. The markers indicate the approximate location of the pipeline. Markers are placed where pipelines intersect streets, railroads, rivers and heavily congested areas.