Calhoun County, Texas
The dominant drainage class is Moderately 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 Calhoun County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Water | 254K | D | Not rated | Not rated | |
| Laewest clay, 0 to 1 percent slopes | 78K | Moderately well drained | D | Very limited | Very limited |
| Galveston-Mustang complex, 0 to 3 percent slopes, occasionally flooded, frequently ponded | 20K | Moderately well drained | A | Very limited | Very limited |
| Livia clay loam, 0 to 1 percent slopes | 20K | Poorly drained | D | Very limited | Very limited |
| Dacosta-Contee complex, 0 to 1 percent slopes | 20K | Moderately well drained | D | Very limited | Very limited |
| Portalto-Roemer occasionally ponded complex, 0 to 3 percent slopes | 20K | Moderately well drained | A | Somewhat limited | Somewhat limited |
| Arrada loamy fine sand, 0 to 1 percent slopes, rarely flooded, occasionally ponded | 17K | Poorly drained | C/D | Very limited | Very limited |
| Livia silt loam, 0 to 1 percent slopes, rarely flooded | 15K | Somewhat poorly drained | D | Very limited | Very limited |
| Francitas clay loam, 0 to 1 percent slopes, rarely flooded | 11K | Somewhat poorly drained | D | Very limited | Very limited |
| Veston very fine sandy loam, 0 to 1 percent slopes, low, frequently flooded | 11K | Poorly drained | D | Very limited | Very limited |
| Austwell clay, 0 to 1 percent slopes, frequently flooded, occasionally ponded | 9K | Poorly drained | D | Very limited | Very limited |
| Galveston fine sand, 0 to 3 percent slopes, occasionally flooded | 9K | Moderately well drained | B | Very limited | Very limited |
| Matagorda very fine sandy loam, occasionally flooded | 7K | Somewhat poorly drained | D | Very limited | Very limited |
| Aransas clay, 0 to 1 percent slopes, slightly saline, moderately sodic, frequently flooded | 7K | Poorly drained | C/D | Very limited | Very limited |
| Rahal fine sand, gently undulating | 7K | Somewhat poorly drained | D | Very limited | Very limited |
| Telferner fine sandy loam, 0 to 1 percent slopes | 7K | Moderately well drained | C/D | Very limited | Very limited |
| Madre fine sand, 0 to 1 percent slopes, occasionally flooded, frequently ponded | 7K | Poorly drained | C/D | Very limited | Very limited |
| Contee-Dacosta complex | 6K | Somewhat poorly drained | D | Very limited | Very limited |
| Placedo clay, 0 to 1 percent slopes, frequently flooded, occasionally ponded | 6K | Very poorly drained | D | Very limited | Very limited |
| Edna loam, 0 to 1 percent slopes | 6K | Somewhat poorly drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 48% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 48% of soils have significant septic limitations, while others are more suitable. A perc test is essential — conditions vary across the area.
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.