Hard clay sends rainwater across the surface instead of taking it in.
In Haltom City, tight clay soil sheds heavy rain when the ground cannot absorb it quickly. After a dry spell, the surface hardens, so water often runs across it rather than soaking down. It follows the low points, compacted ground, and the paths where roof runoff lands, leaving water near walks, patios, and slab edges even where the overall yard appears to have only a slight slope.
That runoff needs a route that starts where the water is collecting and ends at a suitable discharge point. A downspout extension deals with water leaving the roof; a swale reshapes a surface path; a catch basin collects water at a low spot; and a buried drain line carries collected water away. Installing a drain alone does not correct every grading issue, particularly when the water is arriving over a broad section of the yard.
Repeated wetting followed by drying works on expansive soil around a slab. Keeping runoff from lingering at the foundation begins with tracing where the water begins, where it naturally travels, and where it can be directed without concentrating it against the home, a fence line, or a neighboring structure.