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HomeMy WebLinkAboutCUSTOM SOIL RESOURCE REPORT-la MAP LEGEND Area of Interest (ADI) Area of Interest (AO0 Soils Q Soil Map Unit Polygons 0wo Soil Map Unit Lines 13 Soil Map Unit Points Special Point Features r:% Blowout Borrow Pit Clay Spot 0 Closed Depression Gravel Pit Gravelly Spot Landfill A. Lava Flow j Marsh or swamp i Mine or Quarry ® Miscellaneous Water Perennial Water v� Rock Outcrop + 'Saline Spot a Sandy Spot Severely Eroded Spot Q. Sinkhole p Slide or Slip Sodic Spot Custom Soil Resource Report 1p Spoil Area Stony Spot Very Stony Spot Wet Spot © Other Special Line Features Water Features �.,,. Streams and Canals Transportation 1 F+ Rails y Interstate Highways raa,p US Routes Major Roads Local Roads Background Aerial Photography 7 MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailec scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercatc projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as thi Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data I of the version dale(s) listed below. Soil Survey Area: St. Lucie County, Florida Survey Area Data: Version 11, Sep 17, 2018 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Dec 31, 2009—De 15, 2017 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report Map,Unit Legend f,�3Map Unit Symbol , x. i a MaP�Unit Name `i , ' a °' Acres Im.AOL ' .Y Percent ofAO[ 2 Ankona and Farmton sands 1.2 56.6% 26 Oldsmar sand, depressional 0.9 43.4% Totals for Area of Interest 2.1 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. 'The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas,is planned, however, Custom Soil Resource Report onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was, not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. Custom Soil Resource Report St. Lucie County, Florida 2—Ankona and Farmton sands Map Unit Setting National map unit symbol. ljpty 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: Not prime farmland Map Unit Composition Ankona and similar soils: 50 percent Farmton and similar soils: 40 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ankona Setting . Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Parent material: Sandy and loamy marine deposits i Typical profile A - 0 to 11 inches: sand E - 11 to 38 inches: sand Bh - 38 to 48 inches: loamy sand Btg - 48 to 57 inches: sandy loam Cg - 57 to 80 inches: loamy fine sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: 31 to 50 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 1.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4w Hydrologic Soil Group: C/D Forage suitability group: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) 10 Custom Soil Resource Report Hydric soil rating: No Description of Farmton Setting Landform: Flatwoods on marine terraces Landform position (three-dimensional): Interfluve, talf Down -slope shape: Convex Across -slope shape: Linear Parent material: Sandy and loamy marine deposits Typical profile A - 0 to 7 inches: sand E - 7 to 34 inches: sand Bh - 34 to 50 inches: sand Btg - 50 to 80 inches: sandy loam 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 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: Moderate (about 6.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4w Hydrologic Soil Group: B/D Forage suitability group: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) Hyddc soil rating: No Minor Components Electra Percent of map unit: 4 percent Landform: Knolls on marine terraces, rises on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Hydric soil rating: No Waveland Percent of map unit: 3 percent Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Hydric soil rating: No 11 Custom Soil Resource Report Lawnwood Percent of map unit., 3 percent Landform: Marine terraces on flatwoods Landform position (three-dimensional): Talf Down -slope shape: Linear Across -slope shape: Linear Hydric soil rating. No 26—Oldsmar sand, depressional Map Unit Setting National map unit symbol: ljpvm 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 Oldsmar and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Oldsmar Setting Landform: Depressions on marine terraces Landform position (three-dimensional): Dip Down -slope shape: Concave Across -slope shape: Concave Parent material: Sandy and loamy marine deposits Typical profile A - 0 to 5 inches. sand E - 5 to 32 inches: sand Bh - 32 to 42 inches: sand Btg - 42 to 80 inches: fine sandy loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class. Very poorly drained Runoff class: Negligible 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 0 inches Frequency of flooding: None Frequency of ponding: Frequent Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) 12 Custom Soil Resource Report Sodium adsorption ratio, maximum in profile: 4.0 Available waterstorage in profile: Low (about 4.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7w Hydrologic Soil Group: AID Forage suitability group: Sandy soils on stream terraces, flood plains, or in depressions (G156BC145FL) Hydric soil rating: Yes Minor Components Riviera Percent of map unit: 10 percent Landform: Depressions on marine terraces Landform position (three-dimensional): Dip Down -slope shape: Concave Across -slope shape: Concave Hydric soil rating. Yes 13