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HomeMy WebLinkAboutSOIL REPORT2A v1YN 2A 2910'N Custom Soil Resource Report r Soil Map 563470 553460 563490 563500 563510 3 ti Map Scale: 1:4946pdn[ed onA Hndsmpe (11" x 8.5) sheet N Meters A 0 5 10 iA 30 Feet 0 20 40 80 12D Mappmjetti00:Web Me bDr Gcmerroord1wtes:WGSB4 Edge d¢: UIM mire 17NWGS94 6 563520 563530 563540 563550 f4un®o ojon- '3S A13 ®3NNHOS 563560 I 2A W9 N Zr 29'1PN 563570 3 8 Custom Soil Resource Report MAP LEGEND MAP INFORMATION Area of Interest (AQp Spoil Area The soil surveys that comprise your A01 were mapped at 1:24,000, LJ Area of Interest (AOI) Stony Spot Solis Very Stony Spot Warning: Soil Map may not be valid at this scale. Q Soil Map Unit Polygons Wet spot Enlargement of maps beyond the scale of mapping can cause ry Soil Map Unit Lines 0 Other misunderstanding of the detail of mapping and accuracy of soil line p se0 Map Unit Points placement. The maps do not show the small areas of contrasting Special Line Features soils that could have been shown at a more detailed scale. Special Point Features V Blowout Water Features ,.ti. Streams and Canals Please rely on the bar scale on each map sheet for map Borrow pit measurements. Transportation Clay Spot 444 Rails Source of Map: Natural Resources Conservation Service 0 Closed Depression Interstate Highways Web Soil Survey URL: http://websoilsumey.nre-s.usda.gov Gravel Pit Coordinate System: Web Mercator (EPSG:3857) US Routes Gravelly Spat Major Roads Maps from the Web Soil Survey are based on the Web Mercator 0 Landfill l .~ Local Roads projection, which preserves direction and shape but distorts Lava Flaw distance and area. A projection that preserves area, such as the Background Albers equal-area conic projection, should be used If more accurate Marsh or swamp ER Aerial Photography calculations of distance or area are required. Mine or Quarry This product is generated from the USDA-NRCS certified data as of ('p Miscellaneous Water the version date(s) listed below. (' Perennial Water Soil Survey Area: St. Lucie County, Florida vrr Rock Outcrop Survey Area Data: Version 8, Nov 19, 2015 + Saline Spot Soli map units are labeled (as space allows) for map scales 1:50,000 Sandy Spot or larger. g. Severely Eroded Spot Date(s) aerial images were photographed: Dec 15, 2010—Mar Sinkhole 13. 2011 31, Slide or Slip The orthophoto or other base map on which the soil lines were �p sodic spot compiled and digitized probably differs from the background Imagery displayed on these maps. As a result, some minor shifting 7 Custom Soil Resource Report SCANNED BY Map Unit Legend St. Lucie County ^, A# 4 `Y.s y: f}"C`i ,t 1 ro `vim kh."t i. •+^'l 'i, Flontla h.i'>., SL*Luue�County (FL711) ;r.H.,?:,x, r-.F .z4«...+�..X..e0.rvh .w:.�ficnzYe... F.i r?- '✓Ti w rv..ft"in v k4/x&.vx.5xiz Ji.3 �. �.Map'Unit �.yt �t� Map'linit Name, $ � '�'� Acres inrA01"' °�'� � + PeFcent of AOI � x =' Syfn`�olt� �xm 1a 21 Lawnwood and Myakka sands 0.7 61.6% 29 Pendarvis and Pomello sands, 0 OA 30.3% to 5 percent slopes 51 Waveland-Lawnwood complex, 0.1 8.1% depressional Totals for Area of Interest 1.2 100.0% 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 forthe 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 itwas 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 ratherto 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 Custom Soil Resource Report intensive use of small areas is planned, however, 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 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 airtemperature: 70 to 77 degrees F Frost -free period: 350 to 365 days Farmland classification: Farmland of unique importance Map Unit Composition Myakka and similarsoils: 40 percent Lawnwood and similarsoils: 40 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects 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 material: Sandy marine deposits Typical profile A - 0 to 8 inches: sand E - 8 to 28 inches: sand Bh1- 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: A/D Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) 10 Custom Soil Resource Report Description of Myakka Setting Landform: 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 (nonfaigated): 4w Hydrologic Soil Group: AID Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) 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 Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) Electra Percent of map unit., 7 percent Landform: Knolls on marine terraces, rises on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on rises and knolls of mesic uplands (G156BC131 FL) 11 Custom Soil Resource Report Waveland Percent of map unit. 6 percent Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) 29—Pendarvis and Pomello sands, 0 to 5 percent slopes Map Unit Setting National map unit symbol. ljpvq 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 Pendarvis and similar soils. 45 percent Pomello and similar soils: 45 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Pomello Setting Landform: Knolls on marine terraces, ridges on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Parent material., Sandy marine deposits Typical profile A - 0 to 6 inches: sand E - 6 to 42 inches: sand B - 42 to 64 inches. sand Bw/Cg - 64 to 80 inches. sand Properties and qualities Slope: 0 to 5 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Moderately well drained Runoff class. Negligible Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 24 to 42 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) 12 Custom Soil Resource Report Sodium adsorption ratio, maximum in profile: 4.0 Available water storage in profile: Low (about 5.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: A Other vegetative classification: Sandy soils on rises and knolls of mesic uplands (G156BC131FL) Description of Pendarvis Setting Landform: Knolls on marine terraces, rises on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Parent material: Sandy marine deposits Typical profile A - 0 to 6 inches. sand E - 6 to 48 inches: sand Bh1- 48 to 62 inches., loamy sand Bh2 - 62 to 76 inches. sand Bt - 76 to 80 inches. loamy sand Properties and qualities Slope: 0 to 5 percent Depth to restrictive feature: 31 to 50 inches to ortstein Natural drainage class. Moderately well drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.57 in/hr) Depth to water table: About 24 to 42 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: Very low (about 1.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: A Other vegetative classification: Sandy soils on rises and knolls of mesic uplands (G156BC131FL) Minor Components Hobe Percent of map unit. 2 percent Landform: Knolls on marine terraces, ridges on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on rises, knolls, and ridges of mesic uplands (G156BC121FL) 13 Custom Soil Resource Report Waveland Percent of map unit: 2 percent Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) Lawnwood Percent of map unit: 2 percent Landform: Marine terraces on flatwoods Landform position (three-dimensional): Talf Down -slope shape. Linear Across -slope shape: Linear Othervegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) Ankona Percent of map unit: 2 percent Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) Jonathan Percent of map unit: 2 percent Landform: Knolls on marine terraces, ridges on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on rises, knolls, and ridges of mesic uplands (G156BC121FL) 51—Waveland-Lawnwood complex, depressional Map Unit Setting National map unit symbol: 1jpwt 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 Waveland and similar soils: 55 percent Lawnwood and similar soils: 40 percent Minor components: 5 percent 14 Custom Soil Resource Report Estimates are based on observations, descriptions, and transects of the mapunit. Description of Waveland Setting Landform: Depressions on marine terraces Landform position (three-dimensional): Dip Down -slope shape: Concave Across -slope shape: Concave Parent material. Sandy marine deposits Typical profile A - 0 to 4 inches., fine sand Eg - 4 to 32 inches: sand Bh1- 32 to 40 inches: loamy sand Bh2 - 40 to 53 inches. sand Cg1- 53 to 66 inches: sand Cg2 - 66 to 80 inches: sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: 31 to 50 inches to ortstein 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 ofponding. Frequent 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: Very low (about 0.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7w Hydrologic Soil Group: C/D Other vegetative classification: Sandy soils on stream terraces, flood plains, or in depressions (G156BC145FL) Description of Lawnwood Setting Landform: Depressions on marine terraces Landform position (three-dimensional): Dip Down -slope shape: Concave Across -slope shape: Concave Parent material., Sandy marine deposits Typical profile A - 0 to 3 inches., sand E - 3 to 28 inches: sand Bh1- 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 15 Custom Soil Resource Report Depth to restrictive feature: 10 to 31 inches to ortstein 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 Frequencyofponding: Frequent 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: Very low (about 0.7 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7w Hydrologic Soil Group: A/D Other vegetative classification: Sandy soils on stream terraces, flood plains, or in depressions (G156BC145FL) Minor Components Wabasso Percent of map unit: 5 percent Landform: Flats on marine terraces Landfonn position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) 16 2A M'ITN Zr 2510' N Custom Soil Resource Report ry Soil Map a a � `s °s 563470 563480 563490 563500 M3510 3 A Map Scale: 1:494 fipnnNrl on A kndsape (11" x 8.5') sheet N 5 10 20 30 MOM 0 Fed 0 70 40 80 llA Map projection: Web Mercator Ca mordirabs:WGS84 Edge tics: UrM Zone 17N WG584 6 553520 563530 563540 563550 553560 M M'1 N .r. C 0) 0 tD W O �[ M £R 2r 29'WN 0 5635I0 3 rh Custom Soil Resource Report MAP LEGEND MAP INFORMATION Area of Interest (AD[) g Spoil Area The soil surveys that comprise your A01 were mapped at 1:24,000. 0 Area of Interest (AOI) Stony Spot Sails Very stony spot Warning: Soil Map may not be valid at this scale. Q Soil Map Unit Polygons Wet Spot Enlargement of maps beyond the scale of mapping can cause ,.y Soil Map Unit Lines Other misunderstanding of the detail of mapping and accuracy of soil line ® Soil Map Unit Points placement. The maps do not show the small areas of contrasting -: Special Line Features soils that could have been shown at a more detailed scale. Special Point Features :1 Blowout Water Features ,,.,.. Streams and Canals Please rely on the bar scale on each map sheet for map Barrow Pit measurements. Transportation Clay Spot 444 Rails Source Map: Natural Resources Conservation Service 0 Closed Depression ,..,r Interstate Highways Web SoilSurvey URL: http:llwebsoiisurvey.nres.usda.gov Gravel Pit Coordinate System: Web Mercator (EPSG:3857) , US Routes Gravelly Spot„ Major Roads Maps from the Web Soil Survey are based on the Web Mercator �i Landfill Local Roads projection, which preserves direction and shape but distorts Lava Flow distance and area. A projection that preserves area, such as the Background Albers equal-area conic projection, should be used if more accurate Marsh or swamp IE Aerial Photography calculations of distance or area are required. a Mine or quarry This product is generated from the USDA-NRCS certified data as of Qo Miscellaneous Water the version date(s) listed below. Perennial Water Soli Survey Area: St. Lucie County, Florida Rock Outcrop Survey Area Data: Version 8, Nov 19, 2015 �L Saline Spot Soil map units are labeled (as space allows) for map scales 1:50,000 Sandy Spot or larger. ..o Severely Eroded Spot Date(s) aerial images were photographed: Dec 15, 2010—Mar .� Sinkhole 13.2011 S0 Slide or Slip Sodic Spot 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 VA Custom Soil Resource Report Map Unit Legend $ ' * Y. La i5 $Tt3' Sn✓.e -£ Ly,# '% §-:" .(A 'tib.�"` r4 i ft tti+4 �� rv4v ` ,v :;W ... x �- �z (FL11y1)z�. r .-Pi_ s+uix Gw"'#lTJ-m,.�4....h >4 v..w...u.lw.:«ta i'.u-__.w ,�`s' r. >{"�t:. � u46m. l.i�A*"sr ,y t2 Map Unit wt tt,. n- k s "`Mai%l�nit Name T. Y .d s t ^,a 't Acres`.in AOI ", t i tR )+ *.. , Percentxof AOF k s ymbol ;:: ,'PI Rt^? , iw+ x' ,,Y? k +> 21 Lawnwood and Myakka sands 0.7 61.6% 29 PendarAs and Pomello sands, 0 0.4 30.3% to 5 percent slopes 51 Waveland-Lawnwood complex, 0.1 8.1% depressional Totals for Area of Interest 1.2 100.0% 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 forthe 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 Custom Soil Resource Report intensive use of small areas is planned, however, 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 21—Lawnwood and Myakka sands Map Unit Setting National map unit symbol. ljpvg 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 Myakka and similar soils., 40 percent Lawnwood 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 material: Sandy marine deposits Typical profile A - 0 to 8 inches: sand E - 8 to 28 inches: sand Bh1- 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 water storage in profile: Very low (about 0.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4w Hydrologic Soil Group: A/D Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) 10 Custom Soil Resource Report Description of Myakka Setting Landform: 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 (nonimigated): 4w Hydrologic Soil Group: AID Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) 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 Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) Electra Percent of map unit: 7 percent Landform: Knolls on marine terraces, rises on marine terraces Landform position (three-dimensional): Interfluve Dowri-slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on rises and knolls of mesic uplands (G156BC131 FL) 11 Custom Soil Resource Report Waveland Percent of map unit., 6 percent Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Downslope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) 29—Pendarvis and Pomello sands, 0 to 5 percent slopes Map Unit Setting National map unit symbol. 1jpvq 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 Pendarvis and similar soils. 45 percent Pomello and similarsoils., 45 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Pomello Setting Landform: Knolls on marine terraces, ridges on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Parent material: Sandy marine deposits Typical profile A - 0 to 6 inches. sand E - 6 to 42 inches: sand B - 42 to 64 inches: sand Bw/Cg - 64 to 80 inches., sand Properties and qualities Slope: 0 to 5 percent Depth to restrictive feature: More than 80 inches Natural drainage class., Moderately well drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 24 to 42 inches Frequency of flooding: None Frequency ofponding: None 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 water storage in profile: Low (about 5.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: A Other vegetative classification: Sandy soils on rises and knolls of mesic uplands (G156BC131FL) Description of Pendarvis Setting Landform: Knolls on marine terraces, rises on marine terraces Landform position (three-dimensional): Interfluve Downslope shape: Convex Across -slope shape: Linear Parent material Sandy marine deposits Typical profile A - 0 to 6 inches: sand E - 6 to 48 inches: sand Bhf - 48 to 62 inches: loamy sand Bh2 - 62 to 76 inches: sand Bt - 76 to 80 inches: loamy sand Properties and qualities Slope: 0 to 5 percent Depth to restrictive feature: 31 to 50 inches to ortstein Natural drainage class. Moderately well drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.57 in/hr) Depth to water table: About 24 to 42 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: Very low (about 1.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonin-igated): 6s Hydrologic Soil Group: A Other vegetative classification: Sandy soils on rises and knolls of mesic uplands (G156BC131FL) Minor Components Hobe Percent of map unit. 2 percent Landform: Knolls on marine terraces, ridges on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on rises, knolls, and ridges of mesic uplands (G156BC121 FL) 13 Custom Soil Resource Report Waveland Percent of map unit: 2 percent Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) Lawnwood Percent of map unit: 2 percent Landform: Marine terraces on flatwoods Landform position (three-dimensional): Talf Down -slope shape: Linear Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) Ankona Percent of map unit: 2 percent Landform: Flatwoods on marine terraces Landform position (three-dimensional): Talf Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141FL) Jonathan Percent of map unit: 2 percent Landform: Knolls on marine terraces, ridges on marine terraces Landform position (three-dimensional): Interfluve Down -slope shape: Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on rises, knolls, and ridges of mesic uplands (G156BC121 FL) 51—Waveland-Lawnwood complex, depressional Map Unit Setting National map unit symbol: 1jpwf 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 Waveland and similar soils: 55 percent Lawnwood and similar soils: 40 percent Minor components: 5 percent 14 Custom Soil Resource Report Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Waveland Setting Landform: Depressions on marine terraces Landform position (three-dimensional): Dip Down -slope shape: Concave Across -slope shape: Concave Parent material: Sandy marine deposits Typical profile A - 0 to 4 inches. fine sand Eg - 4 to 32 inches: sand Bh1- 32 to 40 inches: loamy sand Bh2 - 40 to 53 inches: sand Cgl - 53 to 66 inches: sand Cg2 - 66 to 80 inches: sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: 31 to 50 inches to ortstein 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) Sodium adsorption ratio, maximum in profile: 4.0 Available waterstorage in profile: Very low (about 0.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7w Hydrologic Soil Group: C/D Other vegetative classification: Sandy soils on stream terraces, flood plains, or in depressions (G156BC145FL) Description of Lawnwood Setting Landform: Depressions on marine terraces Landform position (three-dimensional): Dip Down -slope shape: Concave Across -slope shape: Concave Parent material Sandy marine deposits Typical profile A - 0 to 3 inches: sand E - 3 to 26 inches. sand Bh1- 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 15 Custom Soil Resource Report Depth to restrictive feature., 10 to 31 inches to ortstein 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) Sodium adsorption ratio, maximum in profile: 4.0 Available waterstorage in profile: Very low (about 0.7 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonlrrigated): 7w Hydrologic Soil Group: AID Other vegetative classification: Sandy soils on stream terraces, flood plains, or in depressions (G156BC145FL) Minor Components Wabasso Percent of map unit. 5 percent Landform: Flats on marine terraces Landform position (three-dimensional): Talf Downslope shape. Convex Across -slope shape: Linear Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands (G156BC141 FL) 16