Many water problems on lawns are the result of soil compaction – a high traffic area is walked on or played on constantly and this has packed the soil tightly, creating a barrier through which rain has difficulty filtering. Depleted soil could also be the problem, the result of overuse of synthetic fertilizers, pesticides and herbicides which have rendered the soil lifeless and compacted it. The grass is being kept alive and green only by doses of synthetic nitrogen.So what’s the condition of the soil underneath my lawn?