Humacao Area, Puerto Rico Eastern Part
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 Humacao Area, Puerto Rico Eastern Part.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Caguabo clay loam, 20 to 60 percent slopes | 31K | Well drained | D | Very limited | Very limited |
| Pandura loam, 40 to 60 percent slopes | 31K | Well drained | D | Very limited | Very limited |
| Rock land | 16K | Very limited | Very limited | ||
| Descalabrado and Guayama soils, 20 to 60 percent slopes, eroded | 15K | Well drained | D | Very limited | Very limited |
| Mucara silty clay loam, 20 to 40 percent slopes, eroded | 15K | Well drained | D | Very limited | Very limited |
| Pandura loam, 12 to 40 percent slopes | 15K | Well drained | D | Very limited | Very limited |
| Urban land | 14K | Not rated | Not rated | ||
| Descalabrado-Rock land complex, 40 to 60 percent slopes | 13K | Well drained | D | Very limited | Very limited |
| Not Public Information | 13K | Not rated | Not rated | ||
| Rubble land-Pandura complex, 40 to 60 percent slopes | 12K | Well drained | D | Very limited | Very limited |
| Los Guineos clay, 40 to 60 percent slopes | 11K | Well drained | C | Very limited | Very limited |
| Tidal swamp | 11K | Very poorly drained | C/D | Very limited | Very limited |
| Descalabrado clay loam, 20 to 40 percent slopes, eroded | 9K | Well drained | D | Very limited | Very limited |
| Coloso silty clay loam, 0 to 2 percent slopes, occasionally flooded | 8K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Teja gravelly sandy loam, 12 to 40 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Vieques loam, 12 to 40 percent slopes, eroded | 7K | Well drained | B | Very limited | Very limited |
| Sabana silty clay loam, 40 to 60 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Sabana silty clay loam, 20 to 40 percent slopes | 6K | Well drained | D | Very limited | Very limited |
| Naranjito silty clay loam, 20 to 40 percent slopes | 6K | Well drained | D | Very limited | Very limited |
| Toa silty clay loam, 0 to 2 percent slopes, occasionally flooded | 6K | Well drained | B | Very limited | Very limited |
What This Means
Building & Foundations
About 89% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 89% 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
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.