Martin County, Texas
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Martin County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Amarillo fine sandy loam, 0 to 1 percent slopes | 110K | Well drained | B | Not limited | Somewhat limited |
| Amarillo fine sandy loam, 1 to 3 percent slopes | 73K | Well drained | B | Not limited | Somewhat limited |
| Amarillo loamy fine sand, 0 to 3 percent slopes | 54K | Well drained | B | Not limited | Somewhat limited |
| Midessa fine sandy loam, 0 to 1 percent slopes | 50K | Well drained | B | Not limited | Somewhat limited |
| Portales loam, 0 to 1 percent slopes | 37K | Well drained | B | Not limited | Somewhat limited |
| Kimbrough-Slaughter complex, 0 to 2 percent slopes | 34K | Well drained | D | Very limited | Very limited |
| Kimbrough and Upton soils, nearly level | 24K | Well drained | D | Very limited | Very limited |
| Acuff sandy clay loam, 0 to 1 percent slopes | 18K | Well drained | B | Not limited | Somewhat limited |
| Slaughter loam, 0 to 1 percent slopes | 16K | Well drained | D | Very limited | Very limited |
| Sharvana fine sandy loam, 0 to 3 percent slopes | 14K | Well drained | D | Very limited | Very limited |
| Gomez fine sandy loam, 0 to 1 percent slopes | 12K | Well drained | A | Not limited | Not limited |
| Patricia fine sand, gently undulating | 12K | Well drained | B | Not limited | Somewhat limited |
| Midessa fine sandy loam, 1 to 3 percent slopes | 11K | Well drained | B | Not limited | Somewhat limited |
| Brownfield fine sand, thick surface | 10K | Well drained | B | Not limited | Somewhat limited |
| Olton loam, 0 to 1 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Stegall clay loam, 0 to 1 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Arvana fine sandy loam, 0 to 1 percent slopes | 7K | Well drained | C | Somewhat limited | Very limited |
| Arch soils, 0 to 1 percent slopes | 6K | Well drained | B | Somewhat limited | Somewhat limited |
| Veal fine sandy loam, 1 to 3 percent slopes | 6K | Well drained | B | Not limited | Somewhat limited |
| Arvana fine sandy loam, 1 to 3 percent slopes | 5K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
Most soils are generally favorable for residential construction. Standard foundations are usually viable, though site-specific evaluation is always recommended.
Septic Systems
About 23% 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.