Islands of Airik, Arno, Majuro, Mili and Taroa, Republic of the Marshall Islands

Survey Area MH936 Marshall Islands

The dominant drainage class is Somewhat excessively drained and the dominant hydrologic group is A (high infiltration, low runoff). The most common soil order is Entisols — young soils with little profile development, often on floodplains or steep slopes. 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 Islands of Airik, Arno, Majuro, Mili and Taroa, Republic of the Marshall Islands. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Majuro very cobbly loamy sand 1K Somewhat excessively drainedAVery limitedVery limited
Ngedebus loamy sand, dark surface 960 Somewhat excessively drainedAVery limitedVery limited
Urban land-Ngedebus complex, 0 to 2 percent slopes, MLRA 196 949 DNot ratedNot rated
Ngedebus loamy sand 758 Somewhat excessively drainedAVery limitedVery limited
Majuro-Rubble land complex 229 Somewhat excessively drainedAVery limitedVery limited
Ngedebus very gravelly loamy sand 200 Somewhat excessively drainedAVery limitedVery limited
Ngedebus very gravelly loamy sand, dark surface 184 Somewhat excessively drainedAVery limitedVery limited
Water 13 DNot ratedNot rated
Dumps 4 Not ratedNot rated

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.
Histosols
Organic peat and muck soils formed in wetlands. Very poor for building (compressible) and septic. Often in regulated wetlands.

What This Means

Building & Foundations

About 77% of soils are rated "very limited" for dwellings with basements. Specific challenges include flood-prone areas, sandy or gravelly soils with low bearing capacity. A geotechnical assessment is recommended before building.

Septic Systems

About 77% 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.

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