Biscayne National Park, Florida
The dominant drainage class is Very poorly drained and the dominant hydrologic group is A/D (varies with drainage). 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 Biscayne National Park, Florida.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Waters of the Atlantic Ocean | 31K | Not rated | Not rated | ||
| Keylargo-Islamorada mucks, tidal, 0 to 1 percent slopes, very frequently flooded | 6K | Very poorly drained | A/D | Very limited | Very limited |
| Pennekamp-Bahiahonda complex, 0 to 2 percent slopes, rarely flooded, extremely stony | 2K | Moderately well drained | B/D | Very limited | Very limited |
| Trout Cove-Lignumvitae-Rock outcrop complex, tidal, 0 to 1 percent slopes, very frequently flooded | 1K | Very poorly drained | B/D | Very limited | Very limited |
| Biscayne-Perrine-Rock outcrop complex, 0 to 1 percent slopes, frequently flooded | 412 | Very poorly drained | C/D | Very limited | Very limited |
| Perrine-Pennsuco-Rock outcrop complex, 0 to 1 percent slopes, frequently flooded | 323 | Very poorly drained | C/D | Very limited | Very limited |
| Keylargo-Islamorada-Urban land complex, tidal, 0 to 2 percent slopes, very frequently flooded | 99 | Very poorly drained | A/D | Very limited | Very limited |
| Shark Valley muck, 0 to 1 percent slopes, frequently flooded | 82 | Very poorly drained | A/D | Very limited | Very limited |
| Biscayne-Perrine-Urban land complex, 0 to 1 percent slopes, frequently flooded | 45 | Very poorly drained | C/D | Very limited | Very limited |
What This Means
Building & Foundations
About 23% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
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
Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.