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HomeMy WebLinkAbout20190423 Ver 1_Soils Report_20190403USDA United States Department of Agriculture NRCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Buncombe County, North Carolina Retreat At Arden Farms January 9, 2019 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nres) or your NRCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface.................................................................................................................... 2 SoilMap.................................................................................................................. 5 SoilMap................................................................................................................6 Legend..................................................................................................................7 MapUnit Legend.................................................................................................. 8 MapUnit Descriptions.......................................................................................... 8 Buncombe County, North Carolina................................................................. 10 CuC—Clifton-Urban land complex, 8 to 15 percent slopes ......................... 10 CuD—Clifton-Urban land complex, 15 to 30 percent slopes.......................11 EvD2—Evard-Cowee complex, 15 to 30 percent slopes, moderately eroded...................................................................................................12 TaC—Tate loam, 8 to 15 percent slopes ..................................................... 14 TaD—Tate loam, 15 to 30 percent slopes ................................................... 15 4 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5 3 N W 357710 357760 35° 28'38" N a Iwo I o f rill+ Custom Soil Resource Report Soil Map 357810 357860 357910 _I I I 3579M 1 V LSILXS IPFW UC:L:J m 35° 28'25"N 357710 357760 357810 357860 357910 3 co Map Scale: 1:2,040 W printed on A portrait (8.5" x 11") sheet N Meters 0 30 60 120 180 Feet 0 50 100 200 300 Map projection: Web Mercator Comer coordinates: WC -984 Edge tics: UTM Zone 17N WCS84 6 3 M N W 358010 35° 28' 38" N F i 35° 28' 23'N 358010 3 M m I- N N O N m .- @ w > Z 0 2 co m a m 3 0 m a O> O a N N °° m Z U O Q O m v to o Co O c E E O @ i U m O E O U) N a N ,� a m C Q N 0� — Y N .0 Z O O 0— m O O � ` a)i m E N > Q O O m N'06Em a) l() m co N ACL - (n U U00 0 Z ywwC 3 0 - O O rnm 0 L Q � O m N m N W Z L oN 3 = N v o o Q m a aZi-0 m 0Q m n 3 c U w a m Qt T� @ a D N m U m N L Cl) C U) m C Q O N umi O O Q a 0-0 N E N U ° y C 0 U 3 0 In N O co Q ryj O :5 O C> W O O N O .Lm.� Q O m E m LL Z N N N 4 OL O O N co 2 v Za O w 0-0 N to .0O (m6 t Q O Q N m E a� Q c cYO oma m �cn02 Q a EO m m.0mm E � m nm 0cO v w-1 >mO o a N uOi U N N Q O c E -0 Q W Ch a)C m +L-' m Q o m E Old Q Z T N O j t m .2m au)) m a m O N O p •Lm Q) C >, 0 -0 N w U m T V y� a Q O a N m 3 — C: 0 O � Q m - N m m 7 yL-0 3@ c Q .N Q (n O N rn T N 7 co 7 N 7 0 n (00 M s y 0 O O 61 C O U m a m m N 7 O— m m O c (n D O N N U m a m O� Q 3 T CL C, m 0 m n a 0 r m rn O N N C f` y c N ` 'd 0 O 0.U C i CL a)m U Q O y (n Z O O a' N N O N E N H m m m W E o vii N a E >> N (n > U 0" _4 2 Q =a Q (m6 H O (n (n 0 U) (n D N H OU N d N CL N ca C LL U N - t Q rn (n N a m N N O N d CN J O O O N L o O (n U) Z > U co N L_ y _ O (n cn co o `o N 5 o m U � 3 io 6 c Z LU ® yp�L !1" ❑ N 0 rx N O � � m W N a.J a 0°y m� 9 o w co U) y o a o w a N Q E Z N m m a a 3 m 0 Q ° 0 ° Q O o m m m 0 IL a T= N LL sV o 0 w o U) Q@ d LL S 3 (n o T � y > > -o m i v ami O c > 0 0 Y a) a M Q •0 fn •0 •0 = O (n U) .0 m 0 N m U O (i0 (L6 U (D 0 03 N N C_ J J � � N O � a O (0 a' (n (0 N m (n C m m O (n d a c �0;0 �y.:I�1.1[O)C-:D- (C00 + �0A Q M I- Custom Soil Resource Report Map Unit Legend 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 0 Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI CuC Clifton -Urban land complex, 8 4.1 31.5% to 15 percent slopes CuD Clifton -Urban land complex, 15 0.7 5.3% to 30 percent slopes EvD2 Evard-Cowee complex, 15 to 30 5.3 40.9% percent slopes, moderately eroded TaC Tate loam, 8 to 15 percent 0.1 0.6% slopes TaD Tate loam, 15 to 30 percent 2.8 21.8% slopes Totals for Area of Interest 12.9 100.0% 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 0 Custom Soil Resource Report 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, 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. D Custom Soil Resource Report Buncombe County, North Carolina CuC—Clifton-Urban land complex, 8 to 15 percent slopes Map Unit Setting National map unit symbol: 1 t3v8 Elevation: 2,000 to 2,300 feet Mean annual precipitation: 45 to 60 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Clifton and similar soils: 50 percent Urban land: 40 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Clifton Setting Landform: Mountain slopes, ridges Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Mountaintop, crest Down-slope shape: Convex Across -slope shape: Convex Parent material: Residuum weathered from amphibolite or hornblende gneiss Typical profile Ap - 0 to 8 inches: clay loam Bt - 8 to 55 inches: clay C - 55 to 80 inches: loam Properties and qualities Slope: 8 to 15 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: High (about 10.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: B Hydric soil rating: No Description of Urban Land Setting Parent material: Streets, parking lots, buildings, and other structures 10 Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydric soil rating: No Cul)—Clifton-Urban land complex, 15 to 30 percent slopes Map Unit Setting National map unit symbol: 1 t3v6 Elevation: 2,000 to 2,300 feet Mean annual precipitation: 45 to 60 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Clifton and similar soils: 50 percent Urban land: 40 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Clifton Setting Landform: Mountain slopes, ridges Landform position (two-dimensional): Summit, backslope Landform position (three-dimensional): Upper third of mountainflank, side slope Down-slope shape: Convex Across -slope shape: Linear Parent material: Residuum weathered from amphibolite or hornblende gneiss Typical profile Ap - 0 to 8 inches: clay loam Bt - 8 to 55 inches: clay C - 55 to 80 inches: loam Properties and qualities Slope: 15 to 30 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: High (about 10.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e 11 Moderately high to Custom Soil Resource Report Hydrologic Soil Group: B Hydric soil rating: No Description of Urban Land Setting Parent material: Streets, parking lots, buildings, and other structures Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydric soil rating: No EvD2—Evard-Cowee complex, 15 to 30 percent slopes, moderately eroded Map Unit Setting National map unit symbol: 2vOy7 Elevation: 1,640 to 3,980 feet Mean annual precipitation: 36 to 51 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 159 to 176 days Farmland classification: Farmland of local importance Map Unit Composition Evard, moderately eroded, and similar soils: 55 percent Cowee, moderately eroded, and similar soils: 35 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Evard, Moderately Eroded Setting Landform: Mountain slopes, ridges Landform position (two-dimensional): Backslope, summit Landform position (three-dimensional): Upper third of mountainflank, mountaintop, side slope, crest Down-slope shape: Convex, linear Across -slope shape: Linear, convex Parent material: Residuum weathered from amphibolite and/or hornblende gneiss Typical profile Ap - 0 to 5 inches: clay loam Bt - 5 to 29 inches: sandy clay loam BC - 29 to 37 inches: sandy loam C - 37 to 80 inches: sandy loam Properties and qualities Slope: 15 to 30 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained 12 Custom Soil Resource Report Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Moderate (about 8.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Hydric soil rating: No Description of Cowee, Moderately Eroded Setting Landform: Mountain slopes, ridges Landform position (two-dimensional): Summit, backslope Landform position (three-dimensional): Upper third of mountainflank, mountaintop, side slope, crest Down-slope shape: Convex, linear Across -slope shape: Linear, convex Parent material: Residuum weathered from amphibolite and/or hornblende gneiss Typical profile Ap - 0 to 5 inches: clay loam Bt - 5 to 27 inches: gravelly sandy clay loam Cr - 27 to 80 inches: bedrock Properties and qualities Slope: 15 to 30 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.60 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 3.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4s Hydrologic Soil Group: C Hydric soil rating: No Minor Components Tate Percent of map unit: 3 percent Landform: Toes on coves Landform position (two-dimensional): Landform position (three-dimensional). Down-slope shape: Concave, linear Across -slope shape: Concave 13 Footslope Mountainbase, base slope Custom Soil Resource Report Hydric soil rating: No Chestnut, moderately eroded Percent of map unit: 3 percent Landform: Mountain slopes, ridges Landform position (two-dimensional): Landform position (three-dimensional). crest Down-slope shape: Convex, linear Across -slope shape: Convex Hydric soil rating: No Edneyville, moderately eroded Percent of map unit: 2 percent Landform: Mountain slopes, ridges Landform position (two-dimensional): Landform position (three-dimensional). crest Down-slope shape: Convex, linear Across -slope shape: Convex Hydric soil rating: No Clifton, moderately eroded Percent of map unit: 2 percent Landform: Hillslopes, ridges Landform position (two-dimensional): Landform position (three-dimensional). Down-slope shape: Convex Across -slope shape: Linear Hydric soil rating: No Backslope, summit Mountainflank, mountaintop, side slope, Backslope, summit Mountainflank, mountaintop, side slope, Backslope, summit Side slope, interfluve TaC—Tate loam, 8 to 15 percent slopes Map Unit Setting National map unit symbol: 1 t3y7 Elevation: 2,050 to 3,200 feet Mean annual precipitation: 42 to 50 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 124 to 170 days Farmland classification: Farmland of statewide importance Map Unit Composition Tate and similar soils: 95 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Tate Setting Landform: Coves, drainageways, fans Down-slope shape: Concave 14 Custom Soil Resource Report Across -slope shape: Concave Parent material: Colluvium derived from igneous and metamorphic rock Typical profile Ap - 0 to 7 inches: loam Bt - 7 to 46 inches: clay loam C - 46 to 80 inches: cobbly loam Properties and qualities Slope: 8 to 15 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: High (about 10.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: B Hydric soil rating: No TaD—Tate loam, 15 to 30 percent slopes Map Unit Setting National map unit symbol: 1 t3y9 Elevation: 2,050 to 3,200 feet Mean annual precipitation: 42 to 50 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 124 to 170 days Farmland classification: Farmland of local importance Map Unit Composition Tate and similar soils: 85 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Tate Setting Landform: Coves, drainageways, fans Down-slope shape: Concave Across -slope shape: Concave Parent material: Colluvium derived from igneous and metamorphic rock Typical profile Ap - 0 to 7 inches: loam Bt - 7 to 46 inches: clay loam C - 46 to 80 inches: cobbly loam 15 Custom Soil Resource Report Properties and qualities Slope: 15 to 30 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: High (about 10.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: B Hydric soil rating: No 16