Anza-Borrego Area, California
The dominant drainage class is Somewhat excessively drained and the dominant hydrologic group is A (high infiltration, low 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 Anza-Borrego Area, California.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| No Digital Data Available | 1.2M | Not rated | Not rated | ||
| Torriorthents, Torripsamments, and Haplargids; hyperthermic fan piedmonts | 214K | Somewhat excessively drained | A | Not limited | Very limited |
| Lithic Torriorthents, Typic Haplocalcids, and Rock outcrop; hyperthermic hills and mountains | 147K | Somewhat excessively drained | D | Very limited | Very limited |
| Typic Haplargids and Lithic Haplargids; thermic hills and mountains | 41K | Well drained | D | Very limited | Very limited |
| Torriorthents and Torripsamments; hyperthermic basins | 35K | Somewhat excessively drained | A | Not limited | Very limited |
| Meloland fine sand | 17K | Well drained | C | Somewhat limited | Very limited |
| Lithic Torriorthents and Ustic Haplargids, shallow; mesic hills and mountains | 10K | Well drained | D | Very limited | Very limited |
| Torripsamments and Torriorthents; hyperthermic dunes and alluvium | 9K | Somewhat excessively drained | A | Not limited | Very limited |
| Imperial-Glenbar silty clay loams complex, 2 to 5 percent slopes | 9K | Well drained | D | Somewhat limited | Very limited |
| Vint and Indio very fine sandy loams undifferentiated group, 0 to 2 percent slopes, Wet | 8K | Somewhat poorly drained | A/D | Very limited | Very limited |
| Indio-Vint complex, 0 to 2 percent slopes | 7K | Well drained | A | Not limited | Very limited |
| Caslo taxon above family, saline | 5K | Poorly drained | C/D | Very limited | Very limited |
| Glenbar loam | 4K | Well drained | C | Somewhat limited | Very limited |
| Niland fine sand | 2K | Well drained | C | Somewhat limited | Very limited |
| Typic Torriorthents and Typic Haplargids; thermic fan piedmonts | 1K | Somewhat excessively drained | A | Not limited | Not limited |
| Imperial silty clay | 1K | Well drained | D | Very limited | Very limited |
| Niland gravelly sand | 526 | Well drained | C | Somewhat limited | Very limited |
| Niland-Imperial complex, 0 to 2 percent slopes, wet | 416 | Somewhat poorly drained | C/D | Very limited | Very limited |
| Rositas fine sand, 0 to 2 percent slopes | 398 | Somewhat excessively drained | A | Not limited | Very limited |
| Vint loamy very fine sand, wet | 154 | Somewhat poorly drained | A/D | Very 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 29% of soils have significant septic limitations, while others are more suitable. A perc test is essential — conditions vary across the area.
Gardening & Agriculture
Soils tend to drain very quickly, meaning nutrients and water don't stick around long. Raised beds with amended soil, drip irrigation, and heavy mulching will give the best results. Compost is your best friend here — it improves water retention dramatically.