The single most extensive soil unit mapped around Dallas, TX is Houston Black-Urban land complex, 0 to 4 percent slopes, covering about 64,959 acres of TX113.
The dominant mapped soils in Dallas, TX (TX113) by acreage are Houston Black-Urban land complex, 0 to 4 percent slopes; Houston Black clay, 1 to 3 percent slopes; Trinity clay, 0 to 1 percent slopes, frequently flooded; Ferris-Heiden complex, 5 to 12 percent slopes.
About 23% of housing units in Dallas, TX (132,702 of 578,996) were built before 1960, the era of galvanized steel supply lines and cast iron drains.
About 67% of housing units in Dallas, TX (390,146 of 578,996) were built before 1980, the period when asbestos-containing materials and lead paint were still in use.
In community forums, local remediation professionals emphasize that proper dry-out protocols and deep sanitization are essential to prevent severe structural damage.
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