Mojave Desert Area, West Central Part, 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 Mojave Desert Area, West Central Part, California.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Typic Torriorthents and Typic Haplargids; thermic fan piedmonts | 300K | Somewhat excessively drained | A | Not limited | Not limited |
| Typic Haplargids and Lithic Haplargids; thermic hills and mountains | 239K | Well drained | D | Very limited | Very limited |
| Torriorthents, Torripsamments, and Haplargids; hyperthermic fan piedmonts | 168K | Somewhat excessively drained | A | Not limited | Very limited |
| Lithic Torriorthents and Ustic Haplargids, shallow; mesic hills and mountains | 93K | Well drained | D | Very limited | Very limited |
| Lithic Torriorthents, Typic Haplocalcids, and Rock outcrop; hyperthermic hills and mountains | 74K | Somewhat excessively drained | D | Very limited | Very limited |
| Torripsamments and Torriorthents; hyperthermic dunes and alluvium | 56K | Somewhat excessively drained | A | Not limited | Very limited |
| Dalvord-Rock outcrop association, 15 to 75 percent slopes | 42K | Somewhat excessively drained | D | Very limited | Very limited |
| Lava flows and Lithic Haplargids; thermic | 17K | Well drained | D | Very limited | Very limited |
| Gravesumit-Noagua complex, 2 to 4 percent slopes | 14K | Well drained | B | Not limited | Somewhat limited |
| Burntshack-Hypoint association, 2 to 4 percent slopes | 11K | Well drained | A | Not limited | Not limited |
| Arizo-Gravesumit-Daisy-Hypoint complex, 2 to 8 percent slopes | 10K | Well drained | A | Very limited | Very limited |
| Daisy-Gravesumit-Cajon complex, 2 to 4 percent slopes | 7K | Well drained | A | Very limited | Somewhat limited |
| Gravesumit-Daisy complex, 2 to 8 percent slopes | 7K | Well drained | A | Very limited | Somewhat limited |
| Dalvord-Angelpoint-Rock outcrop association, 15 to 75 percent slopes | 6K | Somewhat excessively drained | D | Very limited | Very limited |
| Ironped-Rock outcrop-Cougarbutte complex, 2 to 15 percent slopes | 6K | Somewhat excessively drained | D | Very limited | Very limited |
| Silvermine-Noagua complex, 2 to 8 percent slopes | 6K | Somewhat excessively drained | D | Very limited | Very limited |
| Arizo-Hypoint, saline association, 2 to 8 percent slopes | 5K | Excessively drained | A | Very limited | Very limited |
| Daisy-Noagua complex, 2 to 8 percent slopes | 5K | Well drained | A | Not limited | Not limited |
| Arizo sand, 2 to 4 percent slopes | 5K | Excessively drained | A | Very limited | Very limited |
| Goldroad-Dalvord-Rock outcrop association, 15 to 50 percent slopes | 4K | Somewhat excessively 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 67% of soils are rated "very limited" for septic absorption fields. The well-drained soils may actually drain too fast for standard leach fields, allowing effluent to reach groundwater. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
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.