United States Department of Agriculture
Natural Resources Conservation Service		 Southeast Coastal Plain and Caribbean Soil Survey Region #15 Go to Accessibility Information
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Adamsville Series

  • Depth class: Very deep
  • Drainage class: Somewhat poorly drained
  • Permeability: Rapid throughout
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Knolls and low ridges
  • Slope: 0 to 5 percent
  • Taxonomic class: Hyperthermic, uncoated Aquic Quartzipsamments

The Adamsville soils are commonly associated on the landscape with Pomello and Seffner soils. Pomello soils have a spodic horizon. Seffner soils have an umbric epipedon.

Typical Pedon

Adamsville fine sand, in an area of Adamsville soils and Urban land, 0 to 5 percent slopes, in Pinellas County; USGS Dunedin topographic quadrangle; lat. 28 degrees 01 minute 20 seconds N. and long. 82 degrees 45 minutes 31 seconds W.

  • A1—0 to 6 inches; dark gray (10YR 4/1) fine sand; weak fine granular structure; very friable; many fine roots; strongly acid; clear wavy boundary.
  • A2—6 to 17 inches; dark grayish brown (10YR 4/2) fine sand; single grain; loose; common fine roots; strongly acid; clear smooth boundary.
  • C1—17 to 38 inches; very pale brown (10YR 7/3) fine sand; single grain; loose; common fine and medium roots; some uncoated sand grains; common fine and medium distinct yellowish brown (10YR 5/8) areas of iron accumulation; strongly acid; gradual wavy boundary.
  • C2—38 to 52 inches; very pale brown (10YR 7/3) fine sand; single grain; loose; common medium brownish yellow (10YR 6/6) areas of iron accumulation; few medium light gray (10YR 7/1) stripped areas; strongly acid; gradual wavy boundary.
  • C3—52 to 80 inches; very pale brown (10YR 8/2) fine sand; single grain; loose; common medium distinct yellowish brown (10YR 5/8) areas of iron accumulation; strongly acid.

Range in Characteristics

  • Reaction: Very strongly acid to moderately acid in the A or Ap horizon and strongly acid to slightly acid in the C horizons
  • A or Ap horizon:
    • Color—hue of 10YR, value of 3 to 5, and chroma of 1 or 2
    • Texture—sand or fine sand
  • C horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 to 4
    • Texture—sand or fine sand
    • Redoximorphic features—few or common iron accumulations in shades of red, brown, or yellow below a depth of 16 inches. In some pedons, the C horizon has a few streaks of gray to light gray uncoated sand grains along root channels in the upper part of the horizon.

Anclote Series

  • Depth class: Very deep
  • Drainage class: Very poorly drained
  • Permeability: Rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Depressions, drainageways, and flood plains
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Typic Endoaquolls

The Anclote soils are commonly associated on the landscape with Manatee, Okeechobee, Placid, and Samsula soils. Manatee soils have an argillic horizon. Okeechobee and Samsula soils are organic soils. Placid soils do not have a mollic epipedon.

Typical Pedon

Anclote fine sand, depressional, in Pinellas County; USGS Oldsmar topographic quadrangle; lat. 28 degrees 06 minutes 00 seconds N. and long. 82 degrees 44 minutes 53 seconds W.

  • A—0 to 16 inches; black (10YR 2/1) fine sand; weak medium granular structure; loose to friable; many fine roots and few medium and large roots; slightly acid; clear wavy boundary.
  • Cg1—16 to 29 inches; dark grayish brown (10YR 4/2) fine sand; single grain; loose; few medium faint areas of very dark gray (10YR 3/1) fine sand; few fine roots; slightly acid; clear wavy boundary.
  • Cg2—29 to 58 inches; grayish brown (10YR 5/2) fine sand; single grain; loose; few fine distinct streaks of light gray (10YR 7/1) fine sand throughout; slightly acid; clear wavy boundary.
  • Cg3—58 to 80 inches; 60 percent grayish brown (10YR 5/2) and 40 percent light brownish gray (10YR 6/2) fine sand; single grain; loose; neutral.

Range in Characteristics

  • Reaction: Moderately acid to slightly alkaline throughout
  • A horizon:
    • Color—hue of 10YR, value of 2 or 3, and chroma of 1 or 2
    • Texture—sand or fine sand. In some pedons, the A horizon has a thin layer of muck.
  • Cg horizon:
    • Color—hue of 10YR to 5Y, value of 2 to 7, and chroma of 1 or 2
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—iron depletions in shades of gray

Astatula Series

  • Depth class: Very deep
  • Drainage class: Excessively drained
  • Permeability: Rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Broad ridges
  • Slope: 0 to 12 percent
  • Taxonomic class: Hyperthermic, uncoated Typic Quartzipsamments

The Astatula soils are commonly associated on the landscape with Palm Beach, Paola, St. Lucie, and Tavares soils. Palm Beach soils contain shell fragments. Paola and St. Lucie have chroma of 2 or less in the C horizon. Tavares soils are moderately well drained.

Typical Pedon

Astatula fine sand, in an area of Astatula soils and Urban land, 0 to 5 percent slopes, in Pinellas County; USGS Dunedin topographic quadrangle; lat. 28 degrees 06 minutes 39 seconds N. and long. 82 degrees 46 minutes 03 seconds W.

  • A—0 to 3 inches; very dark gray (10YR 3/1) fine sand; single grain; loose; few medium and many fine roots; strongly acid; clear smooth boundary.
  • C1—3 to 25 inches; pale brown (10YR 6/3) fine sand; single grain; loose; common medium roots; very strongly acid; gradual wavy boundary.
  • C2—25 to 56 inches; brownish yellow (10YR 6/6) fine sand; single grain; loose; few medium roots; very strongly acid; gradual wavy boundary.
  • C3—56 to 71 inches; light yellowish brown (10YR 6/4) fine sand; single grain; loose; very strongly acid; gradual wavy boundary.
  • C4—71 to 80 inches; very pale brown (10YR 7/3) fine sand; single grain; loose; very strongly acid.

Range in Characteristics

  • Reaction: Very strongly acid to slightly acid throughout
  • A horizon:
    • Color—hue of 10YR, value of 3 to 5, and chroma of 1 or 2
    • Texture—sand or fine sand
  • C horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 3 to 7
    • Texture—fine sand or sand

Basinger Series

  • Depth class: Very deep
  • Drainage class: Poorly drained and very poorly drained
  • Permeability: Rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Depressions, sloughs, and swamps
  • Slope: 0 to 2 percent
  • Taxonomic class: Siliceous, hyperthermic Spodic Psammaquents

The Basinger soils are commonly associated on the landscape with Felda and Pineda soils. Felda and Pineda soils have an argillic horizon.

Typical Pedon

Basinger fine sand, in an area of Basinger soils and Urban land, in Pinellas County; USGS Elfers Harbor topographic quadrangle; lat. 28 degrees 08 minutes 47 seconds N. and long. 82 degrees 41 minutes 30 seconds W.

  • A—0 to 5 inches; very dark gray (10YR 3/1) fine sand; weak fine granular structure; very friable; many fine and few coarse roots; strongly acid; clear smooth boundary.
  • E—5 to 14 inches; light gray (10YR 7/2) fine sand; single grain; loose; common fine roots; few fine distinct brownish yellow (10YR 6/6) areas of iron accumulation; strongly acid; gradual wavy boundary.
  • E/Bh—14 to 36 inches; yellowish brown (10YR 5/4) fine sand; single grain; loose; few fine roots; few medium faint light gray (10YR 7/2) and very dark grayish brown (10YR 3/2) areas of iron depletion; moderately acid; gradual wavy boundary.
  • Cg1—36 to 58 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; few fine roots; common fine distinct yellowish brown (10YR 5/6) areas of iron accumulation; few medium faint very dark grayish brown (10YR 3/2) areas of iron depletion; strongly acid; gradual wavy boundary.
  • Cg2—58 to 80 inches; light gray (10YR 7/2) fine sand; single grain; loose; slightly acid.

Range in Characteristics

  • Reaction: Extremely acid to neutral throughout
  • A horizon:
    • Color—hue of 10YR, value of 2 to 5, and chroma of 1 or 2
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR or 2.5Y, value of 5 to 8, and chroma of 1 to 4
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, olive, or yellow or iron depletions in shades of gray
  • E/Bh horizon:
    • Color—E portion has colors similar to those of the E horizon; Bh portion has hue of 5YR to 10YR, value of 3 to 5, and chroma of 2 to 4
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, red, or yellow or iron depletions in shades of gray
  • Cg horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 or 2
    • Quantity of shell fragments—none to few
    • Texture—sand or fine sand

EauGallie Series

  • Depth class: Very deep
  • Drainage class: Poorly drained
  • Permeability: Rapid in the A and E horizons and moderate to slow in the B horizons
  • Parent material: Sandy marine sediments over loamy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Flatwoods
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Alfic Alaquods

The EauGallie soils are commonly associated on the landscape with Immokalee, Myakka, Pinellas, and Wabasso soils. Immokalee and Myakka soils do not have an argillic horizon. Pinellas soils have a Bk horizon. Wabasso soils have an argillic horizon within a depth of 40 inches.

Typical Pedon

EauGallie fine sand, in an area of EauGallie soils and Urban land, in Pinellas County; USGS St. Petersburg topographic quadrangle; lat. 27 degrees 51 minutes 57 seconds N. and long. 82 degrees 41 minutes 15 seconds W.

  • A—0 to 5 inches; dark gray (10YR 4/1) fine sand; weak fine granular structure; very friable; many fine and medium roots; very strongly acid; clear smooth boundary.
  • E1—5 to 13 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; few fine and medium roots; moderately acid; gradual wavy boundary.
  • E2—13 to 23 inches; light gray (10YR 6/1) fine sand; single grain; loose; few fine and medium roots; moderately acid; abrupt smooth boundary.
  • Bh1—23 to 29 inches; black (5YR 2/1) fine sand; weak medium subangular blocky structure; friable; few fine and medium roots; sand grains coated with organic matter; slightly acid; gradual wavy boundary.
  • Bh2—29 to 37 inches; dark reddish brown (5YR 2/2) fine sand; moderate weak subangular blocky structure; friable; many fine and medium roots; sand grains coated with organic matter; moderately acid; gradual wavy boundary.
  • BE—37 to 47 inches; brown (10YR 4/3) fine sand; common medium dark reddish brown (5YR 2/2) firm fragments of material from the Bh horizon; single grain; loose; many uncoated sand grains; slightly acid; clear wavy boundary.
  • Btg—47 to 59 inches; grayish brown (10YR 5/2) fine sandy clay loam; moderate medium subangular blocky structure; firm; sand grains bridged and coated with clay; common, medium, and coarse distinct olive brown (2.5Y 4/4) areas of iron accumulation; slightly acid; abrupt wavy boundary.
  • Cg—59 to 80 inches; 40 percent light gray (10YR 6/1), 30 percent light brownish gray (10YR 6/2), and 30 percent dark gray (10YR 4/1) sand; few shell fragments; single grain; loose; neutral.

Range in Characteristics

  • Thickness of the solum: 46 to more than 80 inches
  • Reaction: Extremely acid to moderately acid in the A and E horizons and extremely acid to slightly alkaline in the Bh, BE, Btg, and Cg horizons
  • A horizon:
    • Color—hue of 10YR, value of 2 to 4, and chroma of 1 with a salt-and-pepper appearance where undisturbed
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 or 2
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—none to common iron accumulations in shades of brown, red, or yellow
  • Bh horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 3
    • Texture—sand, fine sand, or loamy fine sand
  • BE horizon:
    • Color—hue of 10YR, value of 4 to 7, and chroma of 3 or 4
    • Quantity of fragments of Bh material—none to common
    • Texture—sand or fine sand
  • E´ horizon (where present):
    • Color—hue of 10YR, value of 4 to 8, and chroma of 1 to 3
    • Texture—sand or fine sand
  • Btg horizon:
    • Color—hue of 10YR to 5Y, value of 4 to 7, and chroma of 1 to 3
    • Texture—sandy loam, fine sandy clay loam, or sandy clay loam
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown and yellow or iron depletions in shades of gray
  • Cg horizon:
    • Color—hue of 10YR, value of 5 to 7, and chroma of 1 to 3
    • Texture—sand, fine sand, or fine sandy loam
    • Quantity of shell fragments—none to common
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow

Felda Series

  • Depth class: Very deep
  • Drainage class: Poorly drained
  • Permeability: Moderate
  • Parent material: Sandy marine sediments over loamy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Depressions, drainageways, sloughs, and swamps
  • Slope: 0 to 2 percent
  • Taxonomic class: Loamy, siliceous, superactive, hyperthermic Arenic Endoaqualfs

The Felda soils are commonly associated on the landscape with Basinger and Pineda soils. Basinger soils do not have an argillic horizon. Pineda soils have a Bw horizon.

Typical Pedon

Felda fine sand, in an area of Felda soils and Urban land, in Pinellas County; USGS St. Petersburg topographic quadrangle; lat. 27 degrees 52 minutes 37 seconds N. and long. 82 degrees 44 minutes 08 seconds W.

  • A—0 to 3 inches; very dark gray (10YR 3/1) fine sand; salt-and-pepper appearance due to mixture of organic matter and light gray (10YR 7/1) sand grains; weak fine granular structure; very friable; many fine roots; strongly acid; clear smooth boundary.
  • Eg—3 to 26 inches; light gray (10YR 7/2) fine sand; single grain; loose; few fine roots; common medium faint brown (10YR 5/3) areas of iron accumulation; strongly acid; clear smooth boundary.
  • Btg—26 to 34 inches; dark grayish brown (10YR 4/2) fine sandy loam; weak fine subangular blocky structure; friable; many fine and few medium roots; common coarse faint yellowish brown (10YR 5/4) and few fine distinct yellowish brown (10YR 5/8) areas of iron accumulation; slightly acid; clear wavy boundary.
  • BCg—34 to 38 inches; grayish brown (10YR 5/2) loamy fine sand; weak fine granular structure; friable; many fine roots and few medium roots; many coarse distinct olive brown (2.5Y 5/6) areas of iron accumulation; common medium faint gray (10YR 6/1) areas of iron depletion; neutral; clear smooth boundary.
  • Cg—38 to 80 inches; grayish brown (10YR 5/2) loamy sand that is about 5 percent, by volume, shell fragments; single grain; loose; calcareous; moderately alkaline.

Range in Characteristics

  • Thickness of the solum: 30 to 80 inches
  • Reaction: Very strongly acid to neutral in the A and Eg horizons, slightly acid to slightly alkaline in the Btg horizon, and slightly acid to moderately alkaline in the BCg and Cg horizons
  • A horizon:
    • Color—hue of 10YR, value of 2 to 5, and chroma of 1 or 2
    • Texture—sand or fine sand
  • Eg horizon:
    • Color—hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 1 or 2
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, olive, or yellow
  • Btg horizon:
    • Color—hue of 10YR to 5Y, value of 4 to 7, and chroma of 1 or 2
    • Texture—fine sandy loam, sandy loam, or sandy clay loam
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow
  • BCg horizon (where present):
    • Color—hue of 10YR to 5Y, value of 4 to 7, and chroma of 1 or 2
    • Texture—loamy fine sand, sandy loam, or loamy sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow
  • Cg horizon:
    • Color—hue of 10YR to 5G, value of 4 to 8, and chroma of 1 or 2
    • Texture—sand, fine sand, or loamy sand. In some pedons, the Cg horizon is mixed with shell fragments, has layers of shell fragments, or both.
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow and iron depletions in shades of gray

Immokalee Series

  • Depth class: Very deep
  • Drainage class: Poorly drained
  • Permeability: Rapid in the A horizon and moderate or moderately rapid in the Bh horizon
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Flatwoods
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Arenic Alaquods

The Immokalee soils are commonly associated on the landscape with EauGallie, Myakka, Pinellas, and Wabasso soils. EauGallie and Wabasso soils have an argillic horizon. Myakka soils have a spodic horizon above a depth of 30 inches. Pinellas soils do not have a spodic horizon.

Typical Pedon

Immokalee fine sand, in an area of Immokalee soils and Urban land, in Pinellas County; USGS Oldsmar topographic quadrangle; lat. 28 degrees 01 minute 52 seconds N. and long. 82 degrees 40 minutes 07 seconds W.

  • A—0 to 6 inches; very dark grayish brown (10YR 3/2) fine sand; weak fine granular structure; very friable; many fine and coarse roots; very strongly acid; clear smooth boundary.
  • E—6 to 35 inches; gray (10YR 6/1) fine sand; single grain; loose; many medium and coarse roots; very strongly acid; clear smooth boundary.
  • Bh1—35 to 40 inches; dark brown (10YR 3/3) fine sand; single grain; loose; few fine and medium roots; sand grains coated with organic matter; very strongly acid; gradual wavy boundary.
  • Bh2—40 to 50 inches; dark reddish brown (5YR 3/2) fine sand; weak fine subangular blocky structure; few medium roots; sand grains coated with organic matter; strongly acid; clear wavy boundary.
  • BC—50 to 60 inches; brown (10YR 5/3) fine sand; single grain; loose; strongly acid; gradual wavy boundary.
  • C—60 to 80 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; strongly acid.

Range in Characteristics

  • Reaction: Extremely acid to moderately acid throughout
  • Other features: Some pedons have E´ and B´h horizons below the Bh horizon. The E´ and B´h horizons have the same range in color and texture as the E and Bh horizons.
  • A horizon:
    • Color—hue of 10YR, value of 2 to 4, and chroma of 1 or 2 with a salt-and-pepper appearance when unrubbed
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 or 2
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, red, or yellow
  • Bh horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 3
    • Texture—sand or fine sand
  • BC horizon:
    • Color—hue of 7.5YR or 10YR, value of 3 to 5, and chroma of 2 to 4
    • Texture—sand or fine sand
  • C horizon:
    • Color—hue of 10YR, value of 4 to 7, and chroma of 1 to 4
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow

Kesson Series

  • Depth class: Very deep
  • Drainage class: Very poorly drained
  • Permeability: Moderately rapid or rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Tidal swamps
  • Slope: 0 to 1 percent
  • Taxonomic class: Siliceous, hyperthermic Typic Psammaquents

The Kesson soils are commonly associated on the landscape with Wulfert soils. Wulfert soils are organic soils.

Typical Pedon

Kesson fine sand, very frequently flooded, in Pinellas County; USGS Tarpon Springs topographic quadrangle; lat. 28 degrees 10 minutes 10 seconds N. and long. 82 degrees 47 minutes 14 seconds W.

  • A—0 to 5 inches; black (10YR 2/1) fine sand; single grain; loose; few medium and common fine roots; about 10 percent, by volume, shell fragments; calcareous; slightly alkaline; gradual wavy boundary.
  • Cg1—5 to 26 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; about 15 percent, by volume, shell fragments; calcareous; slightly alkaline; gradual wavy boundary.
  • Cg2—26 to 42 inches; 60 percent grayish brown (10YR 5/2) and 40 percent brown (10YR 5/3) fine sand; single grain; loose; about 20 percent, by volume, shell fragments; calcareous; slightly alkaline; clear wavy boundary.
  • Cg3—42 to 80 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; about 10 percent, by volume, shell fragments; calcareous; slightly alkaline.

Range in Characteristics

  • Reaction: Slightly alkaline to strongly alkaline throughout
  • Content of sulfur: Greater than 0.75 percent within a depth of 20 inches
  • A horizon:
    • Color—hue of 10YR, value of 2 to 5, and chroma of 1 to 3
    • Texture—fine sand or sand. In some pedons, the A horizon has a layer of organic matter less than 6 inches thick.
    • Quantity of shell fragments—5 to 15 percent
  • Cg horizon:
    • Color—hue of 10YR or 2.5Y, value of 3 to 7, and chroma of 1 to 3
    • Texture—fine sand or sand
    • Quantity of shell fragments—5 to 30 percent

Manatee Series

  • Depth class: Very deep
  • Drainage class: Very poorly drained
  • Permeability: Moderate
  • Parent material: Sandy and loamy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Depressions, drainageways, and flood plains
  • Slope: 0 to 2 percent
  • Taxonomic class: Coarse-loamy, siliceous, superactive, hyperthermic Typic Argiaquolls

The Manatee soils are commonly associated on the landscape with Anclote, Okeechobee, Placid, and Samsula soils. Anclote soils do not have an argillic horizon. Okeechobee and Samsula soils are organic soils. Placid soils do not have a mollic epipedon.

Typical Pedon

Manatee loamy fine sand, in Pinellas County; USGS St. Petersburg topographic quadrangle; lat. 27 degrees 49 minutes 48 seconds N. and long. 82 degrees 43 minutes 22 seconds W.

  • A1—0 to 11 inches; black (10YR 2/1) loamy fine sand; weak fine granular structure; very friable; many fine roots; slightly alkaline; clear smooth boundary.
  • A2—11 to 18 inches; very dark brown (10YR 2/2) loamy fine sand; weak fine granular structure; very friable; many fine roots; slightly alkaline; clear irregular boundary.
  • Btg—18 to 34 inches; grayish brown (10YR 5/2) fine sandy loam; weak medium subangular blocky structure; friable; many fine roots; many sand grains coated and bridged with clay; common medium distinct yellowish brown (10YR 5/6) areas of iron accumulation; slightly alkaline; gradual wavy boundary.
  • BCkg—34 to 44 inches; grayish brown (10YR 5/2) fine sandy loam; weak medium subangular blocky structure; friable; slightly sticky, slightly plastic; many fine white (10YR 8/1) semihard calcium carbonate nodules and soft accumulations of calcium carbonate; calcareous; common medium faint dark yellowish brown (10YR 3/4) and common medium distinct yellowish brown (10YR 5/6) areas of iron accumulation; common coarse faint gray (10YR 5/1) areas of iron depletion; moderately alkaline; gradual wavy boundary.
  • Cg—44 to 80 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; slightly alkaline.

Range in Characteristics

  • Thickness of the solum: 30 to 60 inches
  • Reaction: Moderately acid to slightly alkaline in the A horizon and neutral to moderately alkaline in the B and C horizons
  • A horizon:
    • Color—hue of 10YR, value of 2 or 3, and chroma of 2 or less; or neutral in hue and value of 2 or 3
    • Texture—fine sandy loam, fine sand, loamy fine sand, mucky loamy fine sand, or mucky fine sand
  • Btg horizon:
    • Color—hue of 10YR or 5Y, value of 4 to 6, and chroma of 1 or 2
    • Texture—fine sandy loam or sandy loam
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, red, or yellow
  • BCkg horizon:
    • Color—hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 2 or less
    • Texture—fine sandy loam, sandy loam, or loamy fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, red, or yellow and iron depletions in shades of gray
  • Cg horizon:
    • Color—hue of 10YR to 5GY, value of 4 to 7, and chroma of 2 or less
    • Texture—sand, fine sand, sandy loam, or fine sandy loam

Matlacha Series

  • Depth class: Very deep
  • Drainage class: Somewhat poorly drained
  • Permeability: Moderately rapid or rapid
  • Parent material: Material derived from fill and dredge operations
  • Landscape: Lower Coastal Plain
  • Landform: Low ridges
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Alfic Udarents

The Matlacha soils are commonly associated on the landscape with St. Augustine soils. St. Augustine soils contain less than 15 percent limestone fragments.

Typical Pedon

Matlacha sand, in an area of Matlacha and St. Augustine soils and Urban land, in Pinellas County; USGS Pass-A-Grille Beach topographic quadrangle; lat. 27 degrees 38 minutes 32 seconds N. and long. 82 degrees 44 minutes 18 seconds W.

  • C—0 to 42 inches; 40 percent very dark gray (10YR 3/1), 35 percent light brownish gray (10YR 6/2), and 25 percent very pale brown (10YR 7/3) sand that has lenses of white (10YR 8/1) fine sand; single grain; loose; about 20 percent, by volume, shell and limestone fragments less than 3 inches in diameter; few fine and medium roots; moderately alkaline; abrupt smooth boundary.
  • 2Ab—42 to 51 inches; gray (10YR 5/1) fine sand; single grain; loose; about 5 percent, by volume, shell fragments; moderately alkaline; gradual wavy boundary.
  • 2Eb—51 to 80 inches; light gray (10YR 7/1) fine sand; about 30 percent, by volume, shell fragments; moderately alkaline.

Range in Characteristics

  • Reaction: Slightly acid to moderately alkaline throughout
  • C horizon:
    • Color—hue of 10YR or 2.5Y, value of 2 to 7, and chroma of 1 to 6
    • Texture—sand, fine sand, loamy fine sand, loamy sand. In some pedons, the C horizon has few or common pockets or lenses of clay, sandy clay, or sandy clay loam.
    • Fragments—15 to 30 percent shell and rock fragments less than 3 inches in diameter; in some pedons, few or common fragments of mollic, argillic, spodic, and albic horizons
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, red, and yellow and iron depletions in shades of gray
  • 2Ab horizon:
    • Color—hue of 10YR, value of 3 to 5, and chroma of 1 or 2
    • Texture—sand or fine sand
    • Quantity of shell fragments—0 to 15 percent
  • 2Eb horizon:
    • Color—hue of 10YR, value of 5 to 7, and chroma of 1 to 4
    • Texture—sand or fine sand. In some pedons, the 2Eb horizon has lenses of loamy fine sand or loamy sand.
    • Quantity of shell fragments—5 to 50 percent
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown and yellow and iron depletions in shades of gray

Myakka Series

  • Depth class: Very deep
  • Drainage class: Poorly drained
  • Permeability: Rapid in the A horizon and moderate or moderately rapid in the Bh horizon
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Flatwoods
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Aeric Alaquods

The Myakka soils are commonly associated on the landscape with EauGallie, Immokalee, Pinellas, and Wabasso soils. EauGallie and Wabasso soils have argillic horizons. Immokalee soils have a spodic horizon below a depth of 30 inches. Pinellas soils do not have a spodic horizon.

Typical Pedon

Myakka fine sand, in an area of Myakka soils and Urban land, in Pinellas County; USGS Safety Harbor topographic quadrangle; lat. 27 degrees 53 minutes 34 seconds N. and long. 82 degrees 41 minutes 59 seconds W.

  • A—0 to 4 inches; fine sand, black (10YR 2/1) rubbed; weak fine granular structure; very friable; many fine and coarse roots; very strongly acid; clear smooth boundary.
  • E—4 to 22 inches; gray (10YR 6/1) fine sand; single grain; loose; many medium and coarse roots; very strongly acid; clear smooth boundary.
  • Bh1—22 to 24 inches; black (5YR 2/1) fine sand; weak medium subangular blocky structure; friable; few fine and medium roots; sand grains coated with organic matter; very strongly acid; gradual wavy boundary.
  • Bh2—24 to 29 inches; dark reddish brown (5YR 2/2) fine sand; weak fine subangular blocky structure; friable; few medium roots; sand grains coated with organic matter; strongly acid; clear wavy boundary.
  • C/B—29 to 36 inches; dark yellowish brown (10YR 3/4) fine sand; single grain; loose; few fine roots; common medium distinct dark reddish brown (5YR 2/2) Bh bodies; strongly acid; gradual wavy boundary.
  • C1—36 to 54 inches; light yellowish brown (10YR 6/4) fine sand; single grain; loose; strongly acid; gradual wavy boundary.
  • C2—54 to 80 inches; very pale brown (10YR 7/3) fine sand; single grain; loose; strongly acid.

Range in Characteristics

  • Reaction: Extremely acid to slightly acid throughout
  • Other features: Some pedons have E´ and B´h horizons below the Bh horizon. The E´ and B´h horizons have the same range in color and texture as the E and Bh horizons.
  • A horizon:
    • Color—hue of 10YR, value of 2 to 4, and chroma of 1 with a salt-and-pepper appearance when unrubbed
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR, value of 4 to 8, and chroma of 1 or 2
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, red, or yellow
  • Bh horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 4
    • Texture—sand or fine sand
  • C/B horizon:
    • Color—the C part has hue of 5YR to 10YR, value of 3 to 5, and chroma of 3 or 4; the B part has hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 4.
    • Texture—sand or fine sand
  • C horizon:
    • Color—hue of 10YR, value of 4 to 7, and chroma of 1 to 4
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow

Okeechobee Series

  • Depth class: Very deep
  • Drainage class: Very poorly drained
  • Permeability: Rapid
  • Parent material: Organic materials
  • Landscape: Lower Coastal Plain
  • Landform: Freshwater marshes
  • Slope: 0 to 1 percent
  • Taxonomic class: Euic, hyperthermic Hemic Haplosaprists

The Okeechobee soils are commonly associated on the landscape with Anclote, Manatee, Placid, and Samsula soils. Anclote, Manatee, and Placid soils are mineral soils. Samsula soils do not contain hemic material and are underlain by sandy material at a depth of 16 to 51 inches.

Typical Pedon

Okeechobee muck, in Pinellas County; USGS St. Petersburg topographic quadrangle; lat. 27 degrees 50 minutes 09 seconds N. and long. 82 degrees 40 minutes 29 seconds W.

  • Oa—0 to 26 inches; black (10YR 2/1) muck; less than 5 percent fiber rubbed; 10 percent mineral material; weak medium granular structure; friable; many fine roots; slightly acid; gradual smooth boundary.
  • Oe1—26 to 34 inches; very dark brown (10YR 2/2) mucky peat; 65 percent fiber unrubbed, 20 percent rubbed; 5 percent mineral material; massive; friable; few medium faint areas of very dark gray (10YR 3/1) fine sand; few fine roots; moderately acid; gradual smooth boundary.
  • Oe2—34 to 80 inches; dark reddish brown (5YR 3/4) mucky peat; 60 percent fiber unrubbed, 25 percent rubbed; massive; friable; slightly acid.

Range in Characteristics

  • Thickness of organic materials: Greater than 51 inches
  • Reaction: Moderately acid to slightly alkaline throughout
  • Oa horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 or 2
    • Texture—muck; less than 5 percent fiber unrubbed and rubbed; 5 to 15 percent mineral material
  • Oe horizon:
    • Color—hue of 5YR to 10YR, value of 2 to 4, and chroma of 1 to 4
    • Texture—mucky peat; 60 to 80 percent fiber unrubbed and 18 to 40 percent rubbed; less than 10 percent mineral material
  • Oa´ horizon (where present):
    • Color—same as the Oa horizon
    • Texture—same as the Oa horizon

Palm Beach Series

  • Depth class: Very deep
  • Drainage class: Well drained to excessively drained
  • Permeability: Very rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Ridges
  • Slope: 0 to 8 percent
  • Taxonomic class: Hyperthermic, uncoated Typic Quartzipsamments

The Palm Beach soils are commonly associated on the landscape with Astatula, Paola, St. Lucie, and Tavares soils. Astatula, Paola, St. Lucie, and Tavares soils do not have shell fragments.

Typical Pedon

Palm Beach fine sand, 0 to 8 percent slopes, in Pinellas County; USGS Dunedin topographic quadrangle; lat. 28 degrees 01 minute 25 seconds N. and long. 82 degrees 49 minutes 17 seconds W.

  • A—0 to 4 inches; dark grayish brown (10YR 4/2) fine sand; single grain; loose; common fine and few medium roots; about 5 percent, by volume, shell fragments; slightly alkaline; abrupt wavy boundary.
  • C1—4 to 34 inches; light gray (10YR 7/2) fine sand; single grain; loose; about 15 percent, by volume, shell fragments; moderately alkaline; gradual wavy boundary.
  • C2—34 to 80 inches; 55 percent light gray (10YR 7/1) and 45 percent very pale brown (10YR 7/3) fine sand; single grain; loose; about 35 percent, by volume, shell fragments; shell fragments are in layers and also mixed with the sand; strongly alkaline.

Range in Characteristics

  • Reaction: Slightly alkaline to strongly alkaline throughout
  • A or Ap horizon:
    • Color—hue of 10YR, value of 3 to 5, and chroma of 2 or 3
    • Texture—fine sand or sand; 5 to 25 percent, by volume, multicolored shell fragments
  • C horizon:
    • Color—hue of 10YR, value of 5 to 7, and chroma of 1 to 3
    • Texture—fine sand or sand; 15 to 65 percent, by volume, multicolored shell fragments

Paola Series

  • Depth class: Very deep
  • Drainage class: Excessively drained
  • Permeability: Very rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Ridges
  • Slope: 0 to 12 percent
  • Taxonomic class: Hyperthermic, uncoated Spodic Quartzipsamments

The Paola soils are commonly associated on the landscape with Astatula, Palm Beach, St. Lucie, and Tavares soils. Astatula soils do not have chroma of 2 or less and do not have a weakly expressed spodic horizon. Palm Beach soils have shell fragments. St. Lucie soils do not have chroma of 3 or more throughout the profile. Tavares soils are moderately well drained and do not have a weakly expressed spodic horizon.

Typical Pedon

Paola fine sand, in an area of Paola and St. Lucie soils and Urban land, 0 to 5 percent slopes, in Pinellas County; USGS Elfers topographic quadrangle; lat. 28 degrees 09 minutes 16 seconds N. and long. 82 degrees 42 minutes 59 seconds W.

  • A—0 to 3 inches; gray (10YR 6/1) fine sand; single grain; loose; many fine and medium roots; few fine charcoal fragments; very strongly acid; gradual wavy boundary.
  • E—3 to 22 inches; white (10YR 8/1) fine sand; single grain; loose; common fine and medium roots; common medium charcoal fragments; very strongly acid; clear irregular boundary.
  • B/E—22 to 50 inches; yellow (10YR 8/6) fine sand (Bw); single grain; loose; many fine, medium, and coarse roots; few tongues filled with white (10YR 8/1) sand from the overlying E horizon occur throughout the horizon; outer edges of the root channels are stained with dark reddish brown (5YR 2.5/2) and brown (7.5YR 4/4) fine sand; few or common coarse spheroidal dark reddish brown (5YR 2.5/2) and brown (7.5YR 4/4) concretions; thin (typically less than 2 inches thick) discontinuous layers of brown (7.5YR 4/4) weakly cemented fine sand occur at irregular intervals at the contact between the E horizon and the B horizon; very strongly acid; clear wavy boundary.
  • C—50 to 80 inches; very pale brown (10YR 8/4) fine sand; single grain; loose; few fine, medium, and coarse roots; very strongly acid.

Range in Characteristics

  • Reaction: Extremely acid to neutral throughout
  • A horizon:
    • Color—hue of 10YR, value of 4 to 6, and chroma of 1 or 2
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR, value of 6 to 8, and chroma of 1 or 2
    • Texture—sand or fine sand
  • B/E horizon:
    • Color—the Bw part of the B/E horizon has hue of 7.5YR or 10YR, value of 5 to 7, and chroma of 4 to 8. Weakly cemented Bh fragments ranging from 1/2 to 2 inches in thickness occur as a thin discontinuous layer with hue of 5YR or 7.5YR, value of 2.5 to 4, and chroma of 3 or 4. In some pedons, the B/E horizon has sand strippings and shades of white, gray, or very pale brown in the Bw part.
    • Texture—sand or fine sand
  • C horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 to 8
    • Texture—sand or fine sand

Pineda Series

  • Depth class: Very deep
  • Drainage class: Poorly drained
  • Permeability: Slow
  • Parent material: Sandy marine sediments over loamy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Flatwoods
  • Slope: 0 to 2 percent
  • Taxonomic class: Loamy, siliceous, active, hyperthermic Arenic Glossaqualfs

The Pineda soils are commonly associated on the landscape with Basinger and Felda soils. Basinger and Felda soils do not have a Bw horizon.

Typical Pedon

Pineda fine sand, in an area of Pineda soils and Urban land, in Pinellas County; USGS Safety Harbor topographic quadrangle; lat. 27 degrees 52 minutes 53 seconds N. and long. 82 degrees 40 minutes 22 seconds W.

  • A—0 to 4 inches; very dark gray (10YR 3/1) fine sand; salt-and-pepper appearance due to mixture of organic matter and light gray sand grains; weak fine granular structure; very friable; many fine and medium roots; strongly acid; clear smooth boundary.
  • E1—4 to 17 inches; light gray (10YR 7/2) fine sand; single grain; loose; many fine and medium roots; few fine distinct brownish yellow (10YR 6/6) areas of iron accumulation; few medium faint white (10YR 8/1) stripped streaks; strongly acid; clear wavy boundary.
  • E2—17 to 24 inches; very pale brown (10YR 7/3) fine sand; single grain; loose; common fine and medium roots; few fine distinct brownish yellow (10YR 6/6) areas of iron accumulation; moderately acid; clear wavy boundary.
  • Bw—24 to 32 inches; yellow (10YR 7/8) fine sand; single grain; loose; few medium roots; strongly acid; gradual wavy boundary.
  • E´—32 to 37 inches; light gray (10YR 7/2) fine sand; single grain; loose; common coarse distinct brownish yellow (10YR 6/8) areas of iron accumulation; moderately acid; abrupt irregular boundary.
  • B/E—37 to 55 inches; grayish brown (2.5Y 5/2) fine sandy loam (Btg) with 25 percent light gray (10YR 7/2) vertical tongues of fine sand (E) 3 to 7 inches in length and 1/2 to 2 inches in width; weak fine subangular blocky structure; slightly sticky and slightly plastic; sandy tongues are single grain and loose; slightly alkaline; gradual wavy boundary.
  • Cg—55 to 80 inches; grayish brown (2.5Y 5/2) sand mixed with 5 percent, by volume, shell fragments; single grain; loose; moderately alkaline.

Range in Characteristics

  • Thickness of the solum: 40 to 80 inches
  • Reaction: Very strongly acid to neutral in the A, E, E´, and Bw horizons; strongly acid to moderately alkaline in the Btg horizon, where present, and in the B part of the B/E horizon; and moderately acid to moderately alkaline in the Cg horizon
  • Other features: Some pedons have a Btg horizon with colors and textures similar to those of the Btg part of the B/E horizon.
  • A horizon:
    • Color—hue of 10YR, value of 2 to 5, and chroma of 1 or 2
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR or 2.5Y, value of 4 to 8, and chroma of 1 to 3
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, olive, or yellow or iron depletions in shades of gray
  • Bw horizon:
    • Color—hue of 7.5YR or 10YR, value of 4 to 8, and chroma of 3 to 8
    • Texture—sand or fine sand
  • E´ horizon (where present):
    • Color—hue of 10YR, value of 5 to 8, and chroma of 2 to 4
    • Texture—sand or fine sand
  • B/E horizon:
    • Color—the E part has colors and textures similar to those of the E and E´ horizons; the Btg part has hue of 10YR to 5BG, value of 4 to 7, and chroma of 1 or 2
    • Texture—fine sandy loam, sandy loam, or sandy clay loam. Tongues of material from the E´ horizon extend into the B/E horizon. The tongues are more than 5 centimeters in length and occupy more than 15 percent of the B/E horizon.
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow
  • Cg horizon:
    • Color—hue of 10YR to 5GY, value of 5 to 8, and chroma of 1 or 2
    • Texture—sand, fine sand, or loamy sand. In some pedons, the Cg horizon is mixed with shell fragments, has layers of shell fragments, or both

Pinellas Series

  • Depth class: Very deep
  • Drainage class: Poorly drained
  • Permeability: Rapid or moderately rapid
  • Parent material: Sandy marine sediments over loamy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Flatwoods
  • Slope: 0 to 2 percent
  • Taxonomic class: Loamy, siliceous, superactive, hyperthermic Arenic Endoaqualfs

The Pinellas soils are commonly associated on the landscape with EauGallie, Immokalee, Myakka, and Wabasso soils. EauGallie, Immokalee, Myakka, and Wabasso soils do not have a Bk horizon.

Typical Pedon

Pinellas fine sand, in an area of Pinellas soils and Urban land, in Pinellas County; USGS Oldsmar topographic quadrangle; lat. 27 degrees 51 minutes 23 seconds N. and long. 82 degrees 41 minutes 43 seconds W.

  • A—0 to 3 inches; fine sand, black (10YR 2/1) rubbed; salt-and-pepper appearance due to mixture of organic matter and light gray (10YR 7/1) sand grains; weak fine granular structure; very friable; many fine and medium roots; moderately acid; clear smooth boundary.
  • E1—3 to 8 inches; gray (10YR 6/1) fine sand; single grain; loose; many fine, medium, and coarse roots; moderately acid; clear wavy boundary.
  • E2—8 to 18 inches; pale brown (10YR 6/3) fine sand; single grain; loose; many medium and few coarse roots; common coarse faint very pale brown (10YR 7/4) areas of iron accumulation; few medium faint white (10YR 8/1) stripped streaks; slightly acid; clear wavy boundary.
  • Bk1—18 to 25 inches; very pale brown (10YR 8/3) fine sand; weak fine granular structure; very friable; few coarse roots; soft masses of calcium carbonate in interstices between sand grains; sand grains thinly coated with calcium carbonate; calcareous; moderately alkaline; gradual wavy boundary.
  • Bk2—25 to 35 inches; light gray (10YR 7/2) fine sand; single grain; loose; few fine and medium roots; soft masses of calcium carbonate in interstices between sand grains and in many root channels; sand grains thinly coated with calcium carbonate; common coarse distinct brownish yellow (10YR 6/8) areas of iron accumulation; calcareous; moderately alkaline; clear wavy boundary.
  • Btg1—35 to 48 inches; grayish brown (2.5Y 5/2) fine sandy loam; weak fine subangular blocky structure; slightly sticky; common fine and medium roots; common coarse faint olive brown (2.5Y 4/4) areas of iron accumulation; few white (10YR 8/1) soft masses of calcium carbonate in old root channels; sand grains bridged and coated with clay; few lenses of uncoated sand grains; moderately alkaline; gradual wavy boundary.
  • Btg2—48 to 54 inches; gray (5Y 5/1) fine sandy loam; weak fine subangular blocky structure; slightly sticky; few very pale brown (10YR 8/2) soft masses of calcium carbonate in old root channels; sand grains bridged and coated with clay; few fine faint olive (5Y 4/3) areas of iron accumulation; moderately alkaline; clear smooth boundary.
  • 2C—54 to 80 inches; light olive brown (2.5Y 5/4) gravelly sand; single grain; loose; about 25 percent, by volume, shell fragments; calcareous; moderately alkaline.

Range in Characteristics

  • Thickness of the solum: 30 to 60 inches
  • Reaction: Strongly acid to slightly alkaline in the A and E horizons; calcareous in the Bk horizon; and slightly alkaline or moderately alkaline in the Btg and C horizons
  • A horizon:
    • Color—hue of 10YR or 2.5Y, value of 2 to 6, and chroma of 1 or 2; or neutral in hue and value of 5 to 8
    • Texture—sand, fine sand, loamy sand, or loamy fine sand
  • E horizon:
    • Color—hue of 10YR or 2.5Y, value of 4 to 8, and chroma of 1 to 3; or neutral in hue and value of 5 to 8
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, olive, or yellow or iron depletions in shades of gray
  • Bk horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 2 or 3;
    • Horizon thickness—more than 6 inches
    • Calcium carbonate equivalent—more than 15 percent; more than 5 percent higher than the underlying horizons
    • Texture—sand or fine sand
  • Btg horizon:
    • Color—hue of 10YR to 5Y, value of 4 to 8, and chroma of 1 or 2; or neutral in hue and value of 4 to 7
    • Texture—fine sandy loam, sandy loam, or sandy clay loam
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown, olive, or yellow or iron depletions in shades of gray
  • C horizon (where present):
    • Color—similar to those of the Btg horizon
    • Texture—sand or fine sand
  • 2C horizon (where present):
    • Color—largely dependent on the color of the shell material, but the sand has colors similar to those of the Btg horizon
    • Texture—mixture of sand and shell fragments

Placid Series

  • Depth class: Very deep
  • Drainage class: Very poorly drained
  • Permeability: Rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Depressions, drainageways, and swamps
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Typic Humaquepts

The Placid soils are commonly associated on the landscape with Anclote, Manatee, Okeechobee, and Samsula soils. Anclote soils have a mollic epipedon. Manatee soils have an argillic horizon. Okeechobee and Samsula soils are organic soils.

Typical Pedon

Placid fine sand, depressional, in Pinellas County; USGS Safety Harbor topographic quadrangle; lat. 27 degrees 59 minutes 57 seconds N. and long. 82 degrees 42 minutes 14 seconds W.

  • A1—0 to 11 inches; black (10YR 2/1) fine sand; moderate fine granular structure; friable; many fine and few medium and large roots; very strongly acid; clear smooth boundary.
  • A2—11 to 17 inches; black (10YR 2/1) fine sand; single grain; loose; many fine and medium roots; common medium faint stripped areas of light brownish gray (10YR 6/2) fine sand; very strongly acid; gradual smooth boundary.
  • Cg1—17 to 29 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; few fine and coarse roots; few medium distinct pockets of very dark gray (10YR 3/1) iron depletion; very strongly acid; gradual smooth boundary.
  • Cg2—29 to 80 inches; grayish brown (10YR 5/2) fine sand; single grain; loose; strongly acid.

Range in Characteristics

  • Reaction: Extremely acid to strongly acid throughout
  • Other features: Some pedons have a thin layer (1 to 3 inches) of muck on the surface.
  • A horizon:
    • Color—hue of 10YR, value of 2 or 3, and chroma of 1 or 2
    • Texture—sand, fine sand, or mucky fine sand
    • Content of organic matter—4 to 15 percent
    • Redoximorphic features (where present)—iron depletions in shades of gray
  • Cg horizon:
    • Color—hue of 10YR, value of 4 to 7, and chroma of 2 or less
    • Texture—sand or fine sand
    • Redoximorphic features (where present)—iron depletions in shades of gray

Pomello Series

  • Depth class: Very deep
  • Drainage class: Somewhat poorly drained or moderately well drained
  • Permeability: Rapid in the A and E horizons and moderately rapid in the B horizon
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Low ridges
  • Slope: 0 to 5 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Oxyaquic Alorthods

The Pomello soils are commonly associated on the landscape with Adamsville and Seffner soils. Adamsville and Seffner soils do not have a spodic horizon.

Typical Pedon

Pomello fine sand, in an area of Pomello soils and Urban land, 0 to 5 percent slopes, in Pinellas County; USGS Dunedin topographic quadrangle; lat. 28 degrees 02 minutes 52 seconds N. and long. 82 degrees 45 minutes 54 seconds W.

  • A—0 to 3 inches; light gray (10YR 6/1) fine sand; single grain; loose; few fine and medium roots; very strongly acid; clear smooth boundary.
  • E1—3 to 15 inches; light gray (10YR 7/1) fine sand; single grain; loose; common fine and medium roots; very strongly acid; gradual wavy boundary.
  • E2—15 to 44 inches; white (10YR 8/1) fine sand; single grain; loose; few medium roots; very strongly acid; clear smooth.
  • Bh1—44 to 49 inches; black (10YR 2/1) fine sand; weakly cemented; massive; friable; sand grains coated with organic matter; very strongly acid; clear wavy boundary.
  • Bh2—49 to 59 inches; dark reddish brown (5YR 3/3) fine sand; weakly cemented; massive; friable; few or common coarse fragments of dark reddish brown (5YR 3/2) organic bodies; very strongly acid; clear wavy boundary.
  • C—59 to 80 inches; yellowish brown (10YR 5/4) fine sand; single grain; loose; very strongly acid.

Range in Characteristics

  • Reaction: Moderately acid to very strongly acid throughout
  • A horizon:
    • Color—hue of 10YR, value of 4 to 6, and chroma of 1 or 2
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 or 2
    • Texture—sand or fine sand
  • Bh horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 3
    • Texture—sand or fine sand
  • Bw horizon (where present):
    • Color—hue of 5YR to 10YR, value of 3 to 6, and chroma of 3 to 6
    • Texture—sand or fine sand
  • C horizon (where present):
    • Color—hue of 10YR, value of 5 to 7, and chroma of 1 to 4
    • Texture—sand or fine sand

Samsula Series

  • Depth class: Very deep
  • Drainage class: Very poorly drained
  • Permeability: Rapid
  • Parent material: Organic material underlain by sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Depressions and swamps
  • Slope: 0 to 1 percent
  • Taxonomic class: Sandy or sandy-skeletal, siliceous, dysic, hyperthermic Terric Haplosaprists

The Samsula soils are commonly associated on the landscape with Anclote, Manatee, Okeechobee, and Placid soils. Anclote, Manatee, and Placid soils are mineral soils. Okeechobee soils have organic materials with a combined thickness of more than 51 inches.

Typical Pedon

Samsula muck, in Pinellas County; USGS Elfers topographic quadrangle; lat. 28 degrees 09 minutes 02 seconds N. and long. 82 degrees 42 minutes 27 seconds W.

  • Oa1—0 to 8 inches; dark reddish brown (5YR 3/2) muck; about 18 percent fiber unrubbed, 3 percent rubbed; 5 percent mineral material; weak medium granular structure; friable; common fine roots; very strongly acid; gradual smooth boundary.
  • Oa2—8 to 36 inches; black (10YR 2/1) muck; about 12 percent fiber unrubbed, less than 5 percent rubbed; 5 percent mineral material; massive; friable; very strongly acid; clear wavy boundary.
  • Cg1—36 to 44 inches; grayish brown (10YR 5/2) fine sand; single grain; loose; common medium faint dark grayish brown (10YR 4/2) areas of iron depletion; very strongly acid; clear wavy boundary.
  • Cg2—44 to 80 inches; light brownish gray (10YR 6/2) fine sand; single grain; loose; very strongly acid.

Range in Characteristics

  • Contrasting soil material: 16 to 51 inches of organic material over mineral material
  • Reaction: Very strongly acid or strongly acid in the Oa horizon and extremely acid to strongly acid in the Cg horizon
  • Oa horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 4 or less
    • Texture—muck; 10 to 25 percent fiber unrubbed and less than 5 percent rubbed; 0 to 15 percent mineral material
  • Cg horizon:
    • Color—hue of 10YR, value of 2 to 7, and chroma of 1 or 2
    • Texture—fine sand, sand, or loamy fine sand
    • Redoximorphic features (where present)—iron depletions in shades of gray

Seffner Series

  • Depth class: Very deep
  • Drainage class: Somewhat poorly drained
  • Permeability: Rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Knolls and low ridges
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, hyperthermic Aquic Humic Dystrudepts

The Seffner soils are commonly associated on the landscape with Adamsville and Pomello soils. Adamsville and Pomello soils do not have an umbric epipedon.

Typical Pedon

Seffner fine sand, in an area of Seffner soils and Urban land, in Pinellas County; USGS Oldsmar topographic quadrangle; lat. 28 degrees 03 minutes 53 seconds N. and long. 82 degrees 44 minutes 59 seconds W.

  • A1—0 to 8 inches; black (10YR 2/1) fine sand; weak fine granular structure; very friable; many fine roots; very strongly acid; clear wavy boundary.
  • A2—8 to 16 inches; very dark gray (10YR 3/1) fine sand; weak fine granular structure; very friable; many fine roots; very strongly acid; gradual wavy boundary.
  • AC—16 to 29 inches; grayish brown (10YR 5/2) fine sand; single grain; loose; few fine and medium roots; few fine distinct yellowish brown (10YR 5/8) areas of iron accumulation; very strongly acid; gradual wavy boundary.
  • C1—29 to 53 inches; very pale brown (10YR 7/3) fine sand; single grain; loose; few fine roots; common medium distinct brownish yellow (10YR 6/8) and strong brown (7.5YR 5/8) areas of iron accumulation; common medium faint light gray (10YR 7/2) areas of iron depletion; very strongly acid; gradual wavy boundary.
  • C2—53 to 80 inches; pale brown (10YR 6/3) fine sand; single grain; loose; common coarse distinct strong brown (7.5YR 5/8) areas of iron accumulation; strongly acid.

Range in Characteristics

  • Reaction: Very strongly acid to neutral throughout
  • A horizon:
    • Color—hue of 10YR, value of 2 or 3, and chroma of 1 to 3
    • Texture—sand or fine sand
  • AC horizon (where present):
    • Color—hue of 10YR, value of 3 to 6, and chroma of 1 to 4
    • Texture—sand or fine sand
    • Redoximorphic features—few or common iron accumulations in shades of red, brown, or yellow
  • C horizon:
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 to 3
    • Texture—sand or fine sand
    • Redoximorphic features—few or common iron accumulations in shades of red, brown, or yellow and iron depletions in shades of gray

St. Augustine Series

  • Depth class: Very deep
  • Drainage class: Somewhat poorly drained
  • Permeability: Dominantly rapid or moderately rapid; very slow in pedons that have clayey horizons
  • Parent material: Material derived from fill and dredge operations
  • Landscape: Lower Coastal Plain
  • Landform: Low ridges
  • Slope: 0 to 2 percent
  • Taxonomic class: Siliceous, hyperthermic Aquic Udipsamments

The St. Augustine soils are commonly associated on the landscape with Matlacha soils. Matlacha soils have more than 15 percent limestone fragments.

Typical Pedon

St. Augustine sand, in an area of Matlacha and St. Augustine soils and Urban land, in Pinellas County; USGS Seminole topographic quadrangle; lat. 27 degrees 49 minutes 28 seconds N. and long. 82 degrees 49 minutes 08 seconds W.

  • A—0 to 8 inches; dark gray (10YR 4/1) sand; single grain; loose; about 10 percent, by volume, shell fragments; few fine roots; neutral; abrupt smooth boundary.
  • C1—8 to 22 inches; 60 percent light gray (10YR 6/1) and 40 light gray (10YR 7/2) sand; single grain; loose; neutral; gradual smooth boundary.
  • C2—22 to 33 inches; brown (10YR 4/3) loamy fine sand; massive; very friable; about 12 percent, by volume, shell fragments; many coarse faint yellowish brown (10YR 6/4) and common medium distinct reddish yellow (7.5YR 6/6) areas of iron accumulation; moderately alkaline; abrupt smooth boundary.
  • C3—33 to 48 inches; light gray (10YR 6/1) fine sand; single grain; loose; about 10 percent, by volume, shell fragments; neutral; abrupt wavy boundary.
  • C4—48 to 63 inches; 55 percent gray (10YR 5/1) and 45 percent light brownish gray (10YR 6/2) sandy loam; massive; very friable; about 5 percent, by volume, shell fragments; many coarse faint yellowish brown (10YR 6/4) areas of iron accumulation; moderately alkaline; abrupt smooth boundary.
  • C5—63 to 80 inches; light gray (10YR 7/2) sand; single grain; loose; about 40 percent, by volume, shell fragments; moderately alkaline.

Range in Characteristics

  • Reaction: Slightly acid to moderately alkaline throughout
  • A horizon:
    • Color—hue of 10YR, value of 3 or 4, and chroma of 1 or 2
    • Texture—sand or fine sand
    • Quantity of shell fragments—0 to 20 percent
  • C horizon:
    • Color—hue of 10YR or 5Y, value of 3 to 8, and chroma of 1 to 3
    • Texture—sand, fine sand, loamy fine sand, or loamy sand. In some pedons, the C horizon has few or common pockets of clay, sandy clay, or sandy clay loam.
    • Fragments—0 to 12 percent shell and rock fragments less than 3 inches in diameter; in some pedons, few or common fragments of mollic, argillic, spodic, and albic horizons
    • Redoximorphic features (where present)—iron accumulations in shades of brown, red, and yellow and iron depletions in shades of gray

St. Lucie Series

  • Depth class: Very deep
  • Drainage class: Excessively drained
  • Permeability: Very rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Ridges and side slopes
  • Slope: 0 to 12 percent
  • Taxonomic class: Hyperthermic, uncoated Typic Quartzipsamments

The St. Lucie soils are commonly associated on the landscape with Astatula, Palm Beach, Paola, and Tavares soils. Astatula soils do not have chroma of 2 or less. Palm Beach soils have shell fragments. Paola soils have chroma of 3 or more in the lower portion of the profile. Tavares soils are moderately well drained and have chroma of 3 or more.

Typical Pedon

St. Lucie fine sand, in an area of Paola and St. Lucie soils and Urban land, 0 to 5 percent slopes, in Pinellas County; USGS Oldsmar topographic quadrangle; lat. 28 degrees 05 minutes 39 seconds N. and long. 82 degrees 45 minutes 00 seconds W.

  • A—0 to 3 inches; gray (10YR 5/1) fine sand; single grain; loose; many fine and medium roots; few fine charcoal fragments; very strongly acid; clear smooth boundary.
  • C1—3 to 22 inches; light gray (10YR 7/1) fine sand; single grain; loose; common fine and medium roots; very strongly acid; gradual wavy boundary.
  • C2—22 to 80 inches; white (10YR 8/1) fine sand; single grain; loose; very strongly acid.

Range in Characteristics

  • Reaction: Extremely acid to slightly acid throughout
  • A horizon:
    • Color—hue of 10YR, value of 4 to 6, and chroma of 1 or 2
    • Texture—sand or fine sand
  • C horizon:
    • Color—hue of 10YR, value of 7 or 8, and chroma of 1 or 2
    • Texture—sand or fine sand

Tavares Series

  • Depth class: Very deep
  • Drainage class: Moderately well drained
  • Permeability: Rapid
  • Parent material: Sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Knolls and low ridges
  • Slope: 0 to 5 percent
  • Taxonomic class: Hyperthermic, uncoated Typic Quartzipsamments

The Tavares soils are commonly associated on the landscape with Astatula, Palm Beach, Paola, and St. Lucie soils. Astatula, Paola, and St. Lucie soils are excessively drained. Palm Beach soils contain shell fragments.

Typical Pedon

Tavares fine sand, in an area of Tavares soils and Urban land, 0 to 5 percent slopes, in Pinellas County; USGS Dunedin topographic quadrangle; lat. 28 degrees 02 minutes 14 seconds N. and long. 82 degrees 45 minutes 33 seconds W.

  • A—0 to 5 inches; very dark grayish brown (10YR 3/2) fine sand; weak fine granular structure; loose; many fine and few large roots; strongly acid; abrupt wavy boundary.
  • C1—5 to 25 inches; very pale brown (10YR 7/3) fine sand; single grain; loose; common medium roots; very strongly acid; gradual wavy boundary.
  • C2—25 to 50 inches; light yellowish brown (10YR 6/4) fine sand; single grain; loose; few medium roots; very strongly acid; gradual wavy boundary.
  • C3—50 to 65 inches; very pale brown (10YR 7/3) fine sand; few uncoated sand grains; single grain; loose; common large distinct yellowish red (5YR 4/6) areas of iron accumulation; very strongly acid; gradual wavy boundary.
  • C4—65 to 80 inches; very pale brown (10YR 8/2) fine sand; single grain; loose; common large distinct yellowish red (5YR 4/6) and reddish brown (5YR 4/4) areas of iron accumulation; very strongly acid.

Range in Characteristics

  • Reaction: Extremely acid to slightly acid throughout
  • A horizon:
    • Color—hue of 10YR, value of 2 or 3, and chroma of 1 or 2
    • Texture—sand or fine sand
  • C horizon (upper part):
    • Color—hue of 10YR, value of 5 to 8, and chroma of 1 to 6
    • Texture—sand or fine sand
  • C horizon (lower part):
    • Color—hue of 10YR, value of 6 to 8, and chroma of 1 to 4
    • Texture—sand or fine sand
    • Redoximorphic features—masses of iron accumulations in shades of brown, red, and yellow

Wabasso Series

  • Depth class: Very deep
  • Drainage class: Poorly drained
  • Permeability: Rapid in the A and E horizons and slow in the B horizons
  • Parent material: Sandy marine sediments over loamy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Flatwoods
  • Slope: 0 to 2 percent
  • Taxonomic class: Sandy, siliceous, active, hyperthermic Alfic Alaquods

The Wabasso soils are commonly associated on the landscape with EauGallie, Immokalee, Myakka, and Pinellas soils. EauGallie soils have an argillic horizon below a depth of 40 inches. Immokalee and Myakka soils do not have an argillic horizon. Pinellas soils have a Bk horizon.

Typical Pedon

Wabasso fine sand, in an area of Wabasso soils and Urban land, in Pinellas County; USGS St. Petersburg topographic quadrangle; lat. 27 degrees 51 minutes 57 seconds N. and long. 82 degrees 41 minutes 15 seconds W.

  • A—0 to 5 inches; fine sand, black (10YR 2/1) rubbed; weak fine granular structure; very friable; many fine and medium roots; very strongly acid; gradual smooth boundary.
  • E—5 to 26 inches; gray (10YR 6/1) fine sand; single grain; loose; few fine and medium roots; very strongly acid; clear smooth boundary.
  • Bh1—26 to 32 inches; black (5YR 2/1) fine sand; weak medium subangular blocky structure; friable; many fine and medium roots; sand grains coated with organic matter; slightly acid; gradual wavy boundary.
  • Bh2—32 to 36 inches; dark reddish brown (5YR 2/2) fine sand; weak fine subangular blocky structure; friable; many fine and medium roots; sand grains coated with organic matter; moderately acid; gradual wavy boundary.
  • Bt1—36 to 44 inches; dark grayish brown (10YR 4/2) fine sandy clay loam; moderate medium subangular blocky structure; firm; many fine and medium roots; sand grains bridged and coated with clay; common medium and coarse distinct olive brown (2.5Y 4/4) masses of iron accumulation; slightly acid; abrupt smooth boundary.
  • Bt2—44 to 50 inches; 35 percent dark brown (10YR 3/3), 35 percent olive brown (2.5Y 4/4), and 30 percent grayish brown (2.5Y 5/2) fine sandy loam; weak medium subangular blocky structure; slightly sticky; common fine roots; slightly acid; clear wavy boundary.
  • Cg—50 to 80 inches; light gray (2.5Y 7/2) fine sand; single grain; loose; about 10 percent, by volume, shell fragments; moderately alkaline.

Range in Characteristics

  • Reaction: Extremely acid to slightly acid in the A and E horizons; very strongly acid to neutral in the Bh horizon; very strongly acid to moderately alkaline in the E´ horizon, where present, and in the Bt horizon; and slightly alkaline or moderately alkaline in the C horizon
  • A horizon:
    • Color—hue of 10YR, value of 2 to 4, and chroma of 1 or 2
    • Texture—sand or fine sand
  • E horizon:
    • Color—hue of 10YR, value of 5 to 7, and chroma of 1 or 2
    • Texture—sand or fine sand
  • Bh horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 to 4
    • Texture—sand or fine sand
  • E´ horizon (where present):
    • Color—hue of 10YR, value of 5 to 7, and chroma of 1 to 3
    • Texture—sand or fine sand
  • Bt horizon:
    • Color—hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 2 to 4; or multicolored in shades of brown, yellow, and gray
    • Texture—sandy loam, fine sandy clay loam, or sandy clay loam
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow
  • C horizon:
    • Color—hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 1 or 2
    • Texture—fine sand or loamy sand
    • Redoximorphic features (where present)—few or common iron accumulations in shades of brown or yellow

Wulfert Series

  • Depth class: Very deep
  • Drainage class: Very poorly drained
  • Permeability: Rapid
  • Parent material: Organic materials underlain by sandy marine sediments
  • Landscape: Lower Coastal Plain
  • Landform: Tidal marshes
  • Slope: 0 to 1 percent
  • Taxonomic class: Sandy or sandy-skeletal, siliceous, euic, hyperthermic Terric Sulfisaprists

The Wulfert soils are commonly associated on the landscape with Kesson soils. Kesson soils are mineral soils.

Typical Pedon

Wulfert muck, very frequently flooded, in Pinellas County; USGS Elfers topographic quadrangle; lat. 28 degrees 09 minutes 41 seconds N. and long. 82 degrees 44 minutes 29 seconds W.

  • Oa—0 to 35 inches; black (10YR 2/1) muck; about 5 percent fiber unrubbed, less than 1 percent rubbed; massive; very friable; few fine roots; 1.5 percent sulfur; slightly acid; gradual wavy boundary.
  • Cg1—35 to 43 inches; black (10YR 2/1) fine sand; common medium faint pockets of black (10YR 2/1) muck; single grain; loose; 0.5 percent sulfur; strongly acid; gradual wavy boundary.
  • Cg2—43 to 80 inches; 60 percent grayish brown (10YR 5/2) and 40 percent brown (10YR 5/3) fine sand; single grain; loose; about 5 percent, by volume, shell fragments; 0.5 percent sulfur; very strongly acid.

Range in Characteristics

  • Contrasting soil material: 16 to 51 inches of organic material over mineral material
  • Reaction: Extremely acid to neutral (natural state) in the Oa horizon and extremely acid to slightly alkaline in the Cg horizon
  • Oa horizon:
    • Color—hue of 5YR to 10YR, value of 2 or 3, and chroma of 1 or 2
    • Texture—muck; 0 to 25 percent fiber unrubbed and less than 5 percent rubbed; 5 to 40 percent mineral material. In some pedons, the Oa horizon contains hemic material.
    • Content of sulfur—0.7 to 2.0 percent
  • Cg horizon:
    • Color—hue of 10YR, value of 2 or 3, and chroma of 1 or 2
    • Texture—sand, fine sand, or loamy fine sand. In some pedons, the upper part of the horizon contains mucky fine sand.
    • Quantity of shell fragments—up to 30 percent
    • Redoximorphic features (where present)—iron accumulation in shades of yellow or brown


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