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St. Lucie County, Florida
21—Lawnwood and Myakka sands
Map Unit Setting
National map unit symbol. 1jpvg
Elevation: 20 to 200 feet
Mean annual precipitation: 49 to 58 inches
Mean annual air temperature: 70 to 77 degrees F
Frost -free period: 350 to 365 days
Farmland classification: Farmland of unique importance
Map Unit Composition
Lawnwood and similar soils: 40 percent
Myakka and similar soils: 40 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transacts of the mapunit.
Description of Lawnwood
Setting
Landform: Marine terraces on flatwoods
Landform position (three-dimensional): Talf
Down -slope shape: Linear
Across -slope shape: Linear
Parent materiat Sandy marine deposits
Typical profile
A - 0 to 8 inches: sand
E - 8 to 28 inches: sand
Bh f - 28 to 52 inches: sand
Bh2 - 52 to 58 inches: sand
C - 58 to 80 inches: sand
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature. 10 to 31 inches to ortstein
Natural drainage class: Poorly drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table: About 6 to 18 inches
Frequency of flooding: None
Frequency of ponding: None
Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0
mmhos/cm)
Sodium adsorption ratio, maximum in profile: 4.0
Available waterstorage in profile: Very low (about 0.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4w
Hydrologic Soil Group: AID
Forage suitability group: Sandy soils on flats of mesic or hydric lowlands
(G156BC141 FL)
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Custom Soil Resource Report
Hydric soil rating. No
Description of Myakka
Setting
Landfomt: Flatwoods on marine terraces
Landform position (three-dimensional): Talf
Down -slope shape: Convex
Across -slope shape: Linear
Parent material: Sandy marine deposits
Typical profile
A - 0 to 7 inches: sand
E - 7 to 27 inches: sand
Bh - 27 to 38 inches: sand
C - 38 to 80 inches: sand
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Poorly drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 5.95 in/hr)
Depth to water table: About 6 to 18 inches
Frequency of flooding., None
Frequency of ponding: None
Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0
mmhos/cm)
Sodium adsorption ratio, maximum in profile: 4.0
Available water storage in profile: Low (about 4.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (noninigated): 4w
Hydrologic Soil Group: A/D
Forage suitability group: Sandy soils on flats of mesic or hydric lowlands
(G 156BC141 FL)
Hydric soil rating: No
Minor Components
Ankona
Percent of map unit: 7 percent
Landform: Flatwoods on marine terraces
Landform position (three-dimensional): Talf
Down -slope shape: Convex
Across -slope shape: Linear
Hydric soil rating: No
Electra
Percent of map unit: 7 percent
Landform: Knolls on marine terraces, rises on marine terraces
Landform position (three-dimensional): Interiluve
Down -slope shape: Convex
Across -slope shape: Linear
Hydric soil rating. No
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Custom Soil Resource Report
Waveland
Percent of map unit: 6 percent
Landform: Flatwoods on marine terraces
Landfonn position (three-dimensional): Talf
Down -slope shape: Convex
Across -slope shape: Linear
Hydrfc soil rating: No
12
Saint Lucie County Property Appraiser
June 12, 2020 1:9,028
0 365 730 1,460 ft
112.5 225 450 m
Sources: Esri, HERE, Garin, USGS, Int¢rmap. INCREMENT P, NRCan,
Earl Japan, METI, Earl China (Hong Kong), Esri Koma, Esri (Thailand),