Lavaca County, Texas
The dominant drainage class is Moderately well drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Lavaca County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Straber loamy fine sand, 1 to 5 percent slopes | 82K | Moderately well drained | C | Very limited | Very limited |
| Tremona loamy fine sand, 1 to 5 percent slopes | 81K | Somewhat poorly drained | A | Somewhat limited | Very limited |
| Denhawken-Elmendorf complex, 1 to 3 percent slopes | 52K | Well drained | D | Very limited | Very limited |
| Morales-Cieno frequently ponded complex, 0 to 1 percent slopes | 45K | Moderately well drained | C | Not limited | Very limited |
| Dubina loamy fine sand, 1 to 3 percent slopes | 37K | Moderately well drained | C | Somewhat limited | Very limited |
| Hallettsville fine sandy loam, 1 to 3 percent slopes | 35K | Moderately well drained | C | Very limited | Very limited |
| Carbengle loam, 3 to 5 percent slopes | 34K | Well drained | C | Somewhat limited | Very limited |
| Frelsburg clay, 1 to 3 percent slopes | 28K | Moderately well drained | D | Very limited | Very limited |
| Navaca clay, frequently flooded | 26K | Moderately well drained | D | Very limited | Very limited |
| Frelsburg clay, 3 to 5 percent slopes | 26K | Moderately well drained | D | Very limited | Very limited |
| Inez fine sandy loam, 0 to 2 percent slopes | 20K | Moderately well drained | D | Very limited | Very limited |
| Nez loamy sand, 0 to 2 percent slopes | 15K | Moderately well drained | C/D | Very limited | Very limited |
| Branyon clay, 0 to 1 percent slopes | 12K | Moderately well drained | D | Very limited | Very limited |
| Carbengle loam, 2 to 5 percent slopes, eroded | 11K | Well drained | C | Somewhat limited | Very limited |
| Cuero sandy clay loam, 1 to 3 percent slopes | 11K | Well drained | B | Somewhat limited | Very limited |
| Catilla loamy sand, 1 to 5 percent slopes | 9K | Moderately well drained | A | Somewhat limited | Very limited |
| Milby sand, 0 to 2 percent slopes | 9K | Moderately well drained | A | Very limited | Very limited |
| Kuy sand, 0 to 5 percent slopes | 9K | Moderately well drained | A | Somewhat limited | Very limited |
| Carbengle loam, 5 to 8 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Bleiblerville clay, 1 to 3 percent slopes | 9K | Moderately well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 56% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 100% 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.