LOCATION SANDFLY                 FL

Established Series
RBT-ARW
09/2026

SANDFLY SERIES

MLRA(s)--152A and 155
Depth class--Very deep
Drainage class--Subaqueous
Water depth range--71 to 211 centimeters
Parent material--Coarse-loamy estuarine deposits
Geomorphic location--Estuarine tidal streams
Soil Organic Carbon Stock to 200 centimeters--13.8 kg m-2
Slope range--0 to 1 percent
Mean annual air temperature--22 degrees C (71.6 degrees F)
Mean annual water temperature--24.7 degrees C (76.6 degrees F)

TAXONOMIC CLASS: Coarse-loamy, mixed, subactive, nonacid, hyperthermic Thapto-humic Fluviwassents

TYPICAL PEDON: Sandfly fine sand on a west facing, 0.5 percent linear slope bare estuarine tidal stream under 122 centimeters of estuarine water. Tidal range is 24 cm. (Colors are for moist soil unless otherwise noted).

Cseg--0 to 23 centimeters; gray (5Y 5/1) fine sand; structureless, single grain; nonsticky, nonplastic; nonfluid; 9 percent shell fragments; slight sulfurous odor; slight reaction with 30 percent peroxide; moderately alkaline (pH 8.4); moderately alkaline (pH 8.4) oxidized pH; 0.8 kg m-3 soil organic carbon; clear boundary. (13 to 46 centimeters thick)

Aseg1--23 to 62 centimeters; black (5Y 2.5/1) fine sandy loam; weak subangular blocky structure; slightly sticky, slightly plastic; slightly fluid; slight sulfurous odor; slight reaction with 30 percent peroxide; moderately alkaline (pH 8.4); strongly alkaline (pH 8.9) oxidized pH; 1.6 kg m-3 soil organic carbon; clear boundary.

Aseg2--62 to 94 centimeters; black (2.5Y 2.5/1) fine sandy loam; weak subangular blocky structure; moderately sticky, moderately plastic; slightly fluid; slight sulfurous odor; slight reaction with 30 percent peroxide; moderately alkaline (pH 8.4); strongly alkaline (pH 9.0) oxidized pH; 4.7 kg m-3 soil organic carbon; clear boundary. (20 to 71 centimeters thick)

C'seg--94 to 149 centimeters; 60 percent dark gray (5Y 4/1) and 40 percent greenish gray (10Y 5/1) fine sand; structureless, single grain; nonsticky, nonplastic; nonfluid; 3 percent shell fragments; slight sulfurous odor; slight reaction with 30 percent peroxide; slightly alkaline (pH 7.8); strongly alkaline (pH 8.7) oxidized pH; 2.4 kg m-3 soil organic carbon; gradual boundary.

A'seg--149 to 200 centimeters; dark greenish gray (10Y 3/1) shelly fine sand; weak subagular blocky structure; nonsticky, nonplastic; nonfluid; 25 percent shell fragments; slight sulfurous odor; strong reaction with 30 percent peroxide; slightly alkaline (pH 7.8); strongly alkaline (pH 8.5) oxidized pH; 4.3 kg m-3 soil organic carbon.

TYPE LOCATION: Brevard County, Florida; approximately 483 meters (1,584 feet) east of the intersections of New Hampton Way and Bacardi Drive and 273 meters (895 feet) northeast of the cul-de-sac for Sundoro Court in the Sykes View Estates community; USGS topographic quadrangle: Courtenay, Florida.

Latitude--28.3740006
Longitude-- -80.6867001
Datum--WGS84
Coordinate source--Manually entered from GPS

RANGE IN CHARACTERISTICS:
Depth to bedrock--Greater than 200 centimeters
Depth to lithologic discontinuity--18 to 123 centimeters (where present)
Soil moisture--Continuously inundated
Reaction throughout--Slightly alkaline to strongly alkaline (pH 7.4 to 9.0)
Oxidized reaction--Slightly acid to strongly alkaline (6.1 to 9.0)
Electrical conductivity (1:5 soil-water) throughout--0.6 dS/m or greater
Manner of failure--Nonfluid to slightly fluid
Particle-size control section (weighted average):
Shell fragments--0 to 30 percent
Sand--60 to 80 percent
Clay--10 to 18 percent
Total Soil Organic Carbon Stock to 200 centimeters--6.2 to 24.2 kg m-2

Cseg horizon-
Hue--2.5Y, 5Y, or 10Y
Value--4 to 8
Chroma--1 or 2
Texture--fine sandy loam, sandy loam, loamy sand, loamy fine sand, fine sand, or sand with shelly analogs
Organic carbon density--0.3 to 1.7 kg m-3

Aseg horizon
Hue--2.5Y to 10Y, or neutral
Value--2.5 to 4
Chroma--None or 1
Texture--Fine sandy loam, loamy fine sand, or loamy sand with shelly analogs
Organic carbon density--0.8 to 9.6 kg m-3

2Esegb horizon (where present)-
Hue--N
Value--8
Chroma--None or 1
Texture--Fine sand, sand, loamy fine sand, loamy sand, fine sandy loam or sandy loam
Organic carbon density--0.3 to 3.2 kg m-3

2Bsseb horizon (where present)-
Hue--5Y
Value--6
Chroma--1
Texture--Fine sand, sand, loamy fine sand, or loamy sand
Organic carbon density--0.3 to 4.9 kg m-3

C'seg horizon-
Hue--2.5Y, 5Y, 10Y, 5G, 5GY, or is neutral
Value--4 to 7
Chroma--1 or less
Texture--Silty clay, silty clay loam, sandy clay loam, fine sandy loam, sandy loam, loamy sand, loamy fine sand, or fine sand with shelly analogs
Organic carbon density--1.1 to 3.9 kg m-3

Where present the 2Cseg or 3Cseg horizon has similar colors and textures as the C'seg horizon.

3Asegb horizon
Hue--2.5Y or 10Y
Value--3 to 4
Chroma--1
Texture--fine sandy loam, loamy fine sand, or their shelly analogs
Organic carbon density--1.8 to 5.8 kg m-3

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING:
Parent material--Coarse-loamy estuarine deposits
Landscape--Coastal lagoons and bays
Landform--Estuarine tidal streams
Slope--0 to 1 percent
Mean annual precipitation--970 to 1570 millimeters (38 to 62 inches)
Mean annual air temperature--20 to 25 degrees C (69 to 77 degrees F)
Water salinity range--18 to 29 parts per thousand
Frost-free period--365 days

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Broadaxe, Buttonwood, Cash, Endeavor, Ittsanapper, Lighter, Mullet, Sandbank, and Tea Hammock soils.
Broadaxe soils--are on submerged wave-cut platforms and are much sandier throughout.
Buttonwood soils--are on barrier cove landforms (completely different portion of the lagoon), developed in lagoonal deposits and often have thicker humilluvic materials.
Cash soils--are on mainland coves and formed in fine-loamy estuarine deposits
Endeavor soils--are on relict flood-tidal delta sand flats and slopes, have sandier textures, and have considerable shell fragments throughout.
Ittsanapper soils--are on lagoon bottom landforms, at deeper water depths, and have thicker finer textured materials throughout.
Lighter soils--are on estuarine tidal streams and formed in fine-loamy estuarine deposits
Mullet soils--are on washover-fan flats and have sandy textures throughout
Sandbank soils--are on estuarine tidal stream deltas and formed in sandy estuarine deposits and have very fine mica throughout the profile
Tea Hammock soils--are also on nearby anthropogenic landforms consisting of dredge-deposit shoals

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--Subaqueous
Saturated hydraulic conductivity--High or very high
Soil moisture regime--Peraquic
Soil is continuously inundated by saline and brackish water.

USE AND VEGETATION:
Major uses--Used for recreational boating, fishing, and swimming, marinas, mooring fields, and commercial shellfish harvesting; benthic species include tubeworms, clams, crabs, scallops and juvenile finfish
Native vegetation--Dominant vegetation is driven by water quality and quantity within subaqueous systems. Under excellent water quality these soils support seagrass species including but not limited to widgeon grass (Ruppia maritima) and shoal grass (Halodule wrightii) due to their tolerances of low salinity and shallow water depths. Under degraded / poor water quality seagrass may be replaced by rooted eukaryotic macroalgae in the green (Chlorophyta), red (Rhodophyta), and brown (Phaeophyta) algae families. Caulerpa prolifera (Chlorophyta) is often dominant. Vegetative cover ranges from 0 through 20 percent.

DISTRIBUTION AND EXTENT:
General area--Located along the coasts of Indian River Lagoon, Florida and high-energy estuarine tidal streams in the Gulf
Land Resource Regions--T - Atlantic and Gulf Coast Lowland Forest and Crop Region and U - Florida Subtropical Fruit, Truck Crop, and Range Region
MLRA(s)--152A and 155
Extent--Small

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Auburn, Alabama

SERIES ESTABLISHED: Brevard County, Florida, 2024

REMARKS:
Diagnostic horizons and features in this pedon include--
-Peraquic soil moisture regime--Positive soil water potential (permanently submerged) at the soil surface. (under 1.2 meters of salt water).
-N-value > 0.7--The zone from 23 to 94 centimeters (Aseg1 and Aseg2 horizons).
-Taxonomic version--Keys to Soil Taxonomy, 13th edition (2022).

ADDITIONAL DATA:
Typical pedon S2023FL009012. Additional supporting pedon used to develop this series include S2023FL009013.

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National Cooperative Soil Survey
U.S.A.