Lake County, Oregon, Northern Part, Parts of Lake and Klamath Counties
The dominant drainage class is 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 Lake County, Oregon, Northern Part, Parts of Lake and Klamath Counties.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Raz-Brace complex, high precipitation, 2 to 20 percent slopes | 188K | Well drained | D | Very limited | Very limited |
| Raz-Brace complex, low precipitation, 2 to 20 percent slopes | 131K | Well drained | D | Very limited | Very limited |
| Goodtack ashy very fine sandy loam, 2 to 10 percent slopes | 52K | Well drained | D | Very limited | Very limited |
| Abert ashy loamy sand, 0 to 2 percent slopes | 45K | Well drained | B | Not limited | Somewhat limited |
| Thornlake complex, 0 to 2 percent slopes | 43K | Well drained | B | Not limited | Somewhat limited |
| Morehouse ashy loamy fine sand, 0 to 2 percent slopes | 43K | Somewhat excessively drained | A | Not limited | Somewhat limited |
| Water | 42K | D | Not rated | Not rated | |
| Yankeewell very cobbly sandy loam, 2 to 15 percent slopes | 42K | Well drained | D | Very limited | Very limited |
| Enko loamy sand, 2 to 8 percent slopes | 37K | Well drained | C | Not limited | Very limited |
| Ninemile very cobbly loam, low precipitation, 2 to 15 percent slopes | 37K | Well drained | D | Very limited | Very limited |
| Wanoga-Henkle complex, 0 to 15 percent slopes | 32K | Well drained | A | Very limited | Very limited |
| Moonbeam-Goodtack complex, 1 to 10 percent slopes | 32K | Well drained | D | Very limited | Very limited |
| Moonbeam very gravelly ashy loam, 1 to 12 percent slopes | 32K | Well drained | D | Very limited | Very limited |
| Lonegrave-Fitzwater-Rock outcrop complex, 20 to 60 percent slopes | 31K | Well drained | C | Very limited | Very limited |
| Anawalt-Freznik complex, 1 to 5 percent slopes | 30K | Well drained | D | Very limited | Very limited |
| Rabbithills gravelly loamy sand, 0 to 5 percent slopes | 29K | Well drained | D | Very limited | Very limited |
| Lithic Haploxerolls-Lava flows complex, 2 to 15 percent slopes | 28K | Well drained | D | Very limited | Very limited |
| Wanoga-Henkle complex, dry, 0 to 15 percent slopes | 27K | Well drained | A | Very limited | Very limited |
| Wegert-Kunceider complex, cool, 0 to 15 percent slopes | 25K | Somewhat excessively drained | A | Very limited | Very limited |
| Weglike-Suckerflat complex, 0 to 3 percent slopes | 25K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 77% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes. A geotechnical assessment is recommended before building.
Septic Systems
About 81% 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.