La Salle County, Texas
The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in La Salle County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Maverick clay, gently undulating | 102K | Well drained | D | Very limited | Very limited |
| Cotulla clay, 0 to 3 percent slopes | 77K | Moderately well drained | D | Very limited | Very limited |
| Duval loamy fine sand, 0 to 5 percent slopes | 68K | Well drained | B | Not limited | Somewhat limited |
| Brundage fine sandy loam, 0 to 2 percent slopes | 63K | Moderately well drained | D | Somewhat limited | Very limited |
| Moglia clay loam, 1 to 5 percent slopes | 61K | Well drained | C | Somewhat limited | Very limited |
| Lasalle clay, gently undulating | 55K | Moderately well drained | D | Very limited | Very limited |
| Webb fine sandy loam, 0 to 3 percent slopes | 53K | Well drained | C | Somewhat limited | Very limited |
| Duval very fine sandy loam, 0 to 3 percent slopes | 45K | Well drained | B | Not limited | Somewhat limited |
| Brystal very fine sandy loam, 0 to 3 percent slopes | 45K | Well drained | B | Not limited | Somewhat limited |
| Imogene very fine sandy loam, occasionally flooded | 44K | Moderately well drained | D | Very limited | Very limited |
| Duval very fine sandy loam, 1 to 3 percent slopes | 39K | Well drained | B | Not limited | Somewhat limited |
| Poteet very fine sandy loam, occasionally flooded | 38K | Moderately well drained | C | Very limited | Very limited |
| Caid very fine sandy loam, 0 to 3 percent slopes | 34K | Well drained | B | Not limited | Somewhat limited |
| Dilley fine sandy loam, gently undulating | 33K | Well drained | D | Very limited | Very limited |
| Coquat clay, 0 to 1 percent slopes, frequently flooded | 27K | Somewhat poorly drained | D | Very limited | Very limited |
| Cochina clay, 0 to 1 percent slopes, occasionally flooded | 25K | Moderately well drained | D | Very limited | Very limited |
| Bookout clay loam, 0 to 3 percent slopes | 23K | Well drained | C | Somewhat limited | Very limited |
| Cochina clay, 0 to 1 percent slopes, frequently flooded | 23K | Moderately well drained | D | Very limited | Very limited |
| Mata gravelly sandy clay loam, gently undulating | 14K | Well drained | B | Not limited | Somewhat limited |
| Charco-Altita complex, nearly level | 12K | Well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 49% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 72% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.