Colorado 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 Colorado County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Nada-Cieno frequently ponded complex, 0 to 1 percent slopes | 59K | Moderately well drained | C | Not limited | Very limited |
| Telf fine sandy loam, 0 to 1 percent slopes | 48K | Moderately well drained | C | Somewhat limited | Very limited |
| Straber loamy fine sand, 1 to 3 percent slopes | 44K | Moderately well drained | D | Very limited | Very limited |
| Tremona fine sand, 1 to 5 percent slopes | 26K | Somewhat poorly drained | A | Somewhat limited | Very limited |
| Hallettsville sandy clay loam, 1 to 3 percent slopes | 23K | Moderately well drained | D | Very limited | Very limited |
| Cheetham loamy sand, 1 to 3 percent slopes | 22K | Moderately well drained | B | Somewhat limited | Very limited |
| Garwood fine sandy loam, 0 to 1 percent slopes | 18K | Moderately well drained | C | Not limited | Very limited |
| Kuy sand, 0 to 5 percent slopes | 16K | Moderately well drained | A | Somewhat limited | Very limited |
| Katy fine sandy loam, 0 to 1 percent slopes | 14K | Moderately well drained | C | Not limited | Very limited |
| Milby sand, 0 to 2 percent slopes | 14K | Moderately well drained | A | Very limited | Very limited |
| Tremona loamy sand, 0 to 1 percent slopes | 13K | Somewhat poorly drained | A | Somewhat limited | Very limited |
| Telf-Cieno frequently ponded complex, 0 to 1 percent slopes | 13K | Moderately well drained | C | Somewhat limited | Very limited |
| Nez loamy sand, 0 to 2 percent slopes | 12K | Moderately well drained | C/D | Very limited | Very limited |
| Udarents, upland, hilly | 12K | Well drained | B | Very limited | Very limited |
| Frelsburg clay, 1 to 3 percent slopes | 11K | Moderately well drained | D | Very limited | Very limited |
| Dacosta sandy clay loam, 0 to 1 percent slopes | 10K | Moderately well drained | D | Very limited | Very limited |
| Catilla loamy sand, 1 to 5 percent slopes | 9K | Moderately well drained | A | Not limited | Very limited |
| Tremona extremely gravelly loamy sand, 1 to 3 percent slopes | 9K | Somewhat poorly drained | A | Somewhat limited | Very limited |
| Norwood loam, 0 to 1 percent slopes, rarely flooded | 9K | Well drained | B | Very limited | Very limited |
| Wockley fine sandy loam, 0 to 1 percent slopes | 9K | Somewhat poorly drained | C/D | Very limited | Very limited |
What This Means
Building & Foundations
About 36% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
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.