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HomeMy WebLinkAboutSDP201600059 Assessment - Groundwater Initial Site Plan 2016-10-28 Soils Report for WOOLEN MILLS LIGHT INDUSTRIAL PARK Tax Map ID: 07700-00-00-040B0 07700-00-00-040C 1 Item Number: SDP201600059 Prepared: October 28, 2016 01,0114 Thomas Jefferson Soil & Water Conservation District "To exercise leadership in promoting natural resource protection." 706 Forest Street, Suite G Charlottesville, Virginia 22903 Phone: (434) 975-0224 Soil Map—Albemarle County,Virginia,and Charlottesville City,Virginia 3 (Woolen Mills Light Industrial Park) k N % N 722560 722620 722690 722740 722800 722860 722920 38°1'21-N ` �..: {]'J 38°1'21'N - •'Ei V ..,�.� '^'r -' • IN r Gr 4"_ 411 .,' �: 88' r�,...14 ,: •oiled , - •-+►: 911 '•‘ ce:e. w c . • • ;{,�.. ~ _ ' ,. .A¢ `tart. • • -1. _. . 4 0 1 .. '1� ill It 1 .Y, • - pQ1 . V . ., 1114r? - .Y.; ` p ni . A ,-, . ........ , , 55B. i4141444.• tk, . - k 1141ii v • 4 4 • rsi L r •.y • N R 483 ' -... ;* . Iy in o ;: N - f * ' et. ales C+eek� .Ai Mo Warning: Soil Map may not be valid at this scale. i 38°1' .N '1 •., i 38°1'3'N 722560 722620 722680 722740 722600 722860 722920 3 3 Map Scale:1:2,580 if printed on A portrait(8.5"x 11")sheet. N Meters $ 0 35 70 140 210 Feet 0 100 200 400 600 Map projection:Web Mercator Caner coordinates:WGS84 Edge tia:UTM Zone 17N WG584 USDA Natural Resources Web Soil Survey 10/28/2016 i Conservation Service National Cooperative Soil Survey Page 1 of 4 Soil Map—Albemarle County,Virginia, and Charlottesville City,Virginia (Woolen Mills Light Industrial Park) MAP LEGEND MAP INFOF Area of Interest(AOI) q Spoil Area The soil surveys that comprise your Area of Interest(AOI) el Stony Spot ranging from 1:15,800 to 1:24,000. Soils ti Very Stony Spot Warning:Soil Map may not be valid Soil Map Unit Polygons Wet Spot Enlargement of maps beyond the s ..e Soil Map Unit Lines misunderstanding of the detail of m �, Other placement.The maps do not show • Soil Map Unit Points .. Special Line Features soils that could have been shown a Special Point Features (sir Blowout water Features Please rely on the bar scale on eac Streams and Canals measurements. ® Borrow Pit Transportation Source of Map: Natural Resource Clay Spot +—r-ta Rails Web Soil Survey URL: http:Nweb O Closed Depression ..i Interstate Highways Coordinate System: Web Mercati • Gravel Pit US Routes Maps from the Web Soil Survey are projection,which preserves directio Gravelly Spot Major Roads distance and area.A projection that 0 Landfill Local Roads Albers equal-area conic projection, calculations of distance or area are A. Lava Flow Background This product is generated from the l .46 Marsh or swamp . Aerial Photography the version date(s)listed below. . + Mine or Quarry Soil Survey Area: Albemarle Cou O Miscellaneous Water Survey Area Data: Version 10,D ® Perennial Water Soil Survey Area: Charlottesville Survey Area Data: Version 3,De Rock Outcrop Your area of interest(AOI)includes + Saline Spot These survey areas may have been Sandy Spot a different land use in mind,at diffe of detail.This may result in map un Severely Eroded Spot interpretations that do not complete • Sinkhole boundaries. Slide or Slip Soil map units.are labeled(as space or larger. 0 Sodic Spot Date(s)aerial images were photogr 2011 The orthophoto or other base map compiled and digitized probably diff USDA Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey • Soil Map—Albemarle County,Virginia,and Charlottesville City,Virginia (Woolen Mills Light Industrial Park) MAP LEGEND MAP INFOF imagery displayed on these maps., of map unit boundaries may be evic USDA Natural Resources Web Soil Survey 11110 Conservation Service National Cooperative Soil Survey Soil Map—Albemarle County,Virginia,and Charlottesville City,Virginia Woolen Mills Light Industrial Park Map Unit Legend Albemarle County,Virginia(VA003) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 10 Buncombe loamy sand 1.4 10.4% 12C Catoctin silt loam. 7 to 15 1.8 13.1% percent slopes 12D Catoctin silt loam,15 to 25 1.3 9.2% percent slopes 12E Catoctin silt loam,25 to 45 3.2 23.4% percent slopes 55B McQueen loam,2 to 7 percent 1.3 9.5% slopes 77 Riverview-Chewada complex 3.1 22.4% 83 Toccoa fine sandy loam 0.7 5.2% 88 Udorthents,loamy 0.9 6.2% Subtotals for Soil Survey Area 13.7 99.3% Totals for Area of Interest 13.8 100.0% Charlottesville City,Virginia(VA540) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 91 Urban land 0.1 0.7% Subtotals for Soil Survey Area 0.1 0.7% Totals for Area of Interest 13.8 100.0% (ism Natural Resources Web Soil Survey 10/28/2016 Conservation Service National Cooperative Soil Survey Page 4 of 4 • Dwellings and Small Commercial Buildings--Albemarle County,Virginia,and Charlottesville City, Woolen Mills Light Industrial Park Virginia Dwellings and Small Commercial Buildings Soil properties influence the development of building sites, including the selection of the site,the design of the structure, construction, performance after construction, and maintenance.This table shows the degree and kind of soil limitations that affect dwellings and small commercial buildings. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). Dwellings are single-family houses of three stories or less. For dwellings without basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. For dwellings with basements, the foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of about 7 feet. The ratings for dwellings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load-supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink-swell potential), and compressibility. Compressibility is inferred from the Unified classification. The properties that affect the ease and amount of excavation include depth to a water table, ponding, flooding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. Small commercial buildings are structures that are less than three stories high and do not have basements. The foundation is assumed to consist of spread footings of reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost penetration, whichever is deeper. The ratings are based on the soil properties that affect the capacity of the soil to support a load without movement and on the properties that affect excavation and construction costs. The properties that affect the load-supporting capacity include depth to a water table, ponding, flooding, subsidence, linear extensibility (shrink-swell potential), and compressibility(which is inferred from the Unified classification).The properties that affect the ease and amount of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size of rock fragments. USDA Natural Resources Web Soil Survey 10/28/2016 Conservation Service National Cooperative Soil Survey Page 1 of 4 Dwellings and Small Commercial Buildings--Albemarle County,Virginia,and Charlottesville City, Woolen Mills Light Industrial Park Virginia Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report—Dwellings and Small Commercial Buildings [Onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site.The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. The table shows only the top five limitations for any given soil. The soil may have additional limitations] Dwellings and Small Commercial Buildings—Albemarle County,Virginia Map symbol and soil Pct.of Dwellings without basements Dwellings with basements Small commercial buildings name map unit Rating class and Value Rating class and Value Rating class and Value limiting features limiting features limiting features 10—Buncombe loamy sand Buncombe 85 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Flooding 1.00 12C—Catoctin silt loam,7 to 15 percent slopes Catoctin 80 Somewhat limited Very limited Very limited Depth to hard bedrock 0.64 Depth to hard bedrock 1.00 Slope 1.00 Slope 0.37 Slope 0.37 Depth to hard bedrock 0.64 12D—Catoctin silt loam, 15 to 25 percent slopes Catoctin 80 Very limited Very limited Very limited Slope 1.00 Slope 1.00 Slope 1.00 Depth to hard bedrock 0.64 Depth to hard bedrock 1.00 Depth to hard bedrock 0.64 USDA Natural Resources Web Soil Survey 10/28/2016 a Conservation Service National Cooperative Soil Survey Page 2 of 4 • Dwellings and Small Commercial Buildings—Albemarle County,Virginia,and Charlottesville City, Woolen Mills Light Industrial Park Virginia Dwellings and Small Commercial Buildings—Albemarle County,Virginia Map symbol and soil Pct.of Dwellings without basements Dwellings with basements Small commercial buildings name map unit Rating class and Value Rating class and Value Rating class and Value limiting features limiting features limiting features 12E—Catoctin silt loam,25 to 45 percent slopes Catoctin 75 Very limited Very limited Very limited Slope 1.00 Slope 1.00 Slope 1.00 Depth to hard bedrock 0.64 Depth to hard bedrock 1.00 Depth to hard bedrock 0.64 55B—McQueen loam, 2 to 7 percent slopes Mcqueen 85 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Flooding 1.00 Shrink-swell 0.50 Shrink-swell 0.05 Shrink-swell 0.50 Depth to saturated 0.03 Slope 0.13 zone 77—Riverview- Chewacla complex Riverview 50 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Flooding 1.00 Depth to saturated 0.61 zone Chewada 40 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Flooding 1.00 Depth to saturated 1.00 Depth to saturated 1.00 Depth to saturated 1.00 zone zone zone 83—Toccoa fine sandy loam Toccoa 85 Very limited Very limited Very limited Flooding 1.00 Flooding 1.00 Flooding 1.00 Depth to saturated 0.73 zone 88—Udorthents, loamy Udorthents 85 Not rated Not rated Not rated Dwellings and Small Commercial Buildings—Charlottesville City,Virginia Map symbol and soil Pct.of Dwellings without basements Dwellings with basements Small commercial buildings name map unit Rating class and Value Rating class and Value Rating class and Value limiting features limiting features limiting features 91—Urban land Urban land 85 Not rated Not rated Not rated USDA Natural Resources Web Soil Survey 10/28/2016 ilia Conservation Service National Cooperative Soil Survey Page 3 of 4 Dwellings and Small Commercial Buildings---Albemarle County,Virginia,and Charlottesville City, Woolen Mills Light Industrial Park Virginia Data Source Information Soil Survey Area: Albemarle County, Virginia Survey Area Data: Version 10, Dec 11, 2013 Soil Survey Area: Charlottesville City, Virginia Survey Area Data: Version 3, Dec 11, 2013 USDA Natural Resources Web Soil Survey 10/28/2016 Conservation Service National Cooperative Soil Survey Page 4 of 4 Roads and Streets,Shallow Excavations,and Lawns and Landscaping---Albemarle County, Woolen Mills Light Industrial Park Virginia,and Charlottesville City,Virginia • Roads and Streets, Shallow Excavations, and Lawns and Landscaping Soil properties influence the development of building sites, including the selection of the site,the design of the structure, construction, performance after construction, and maintenance.This table shows the degree and kind of soil limitations that affect local roads and streets, shallow excavations, and lawns and landscaping. The ratings in the table are both verbal and numerical. Rating class terms indicate the extent to which the soils are limited by all of the soil features that affect building site development. Not limited indicates that the soil has features that are very favorable for the specified use. Good performance and very low maintenance can be expected. Somewhat limited indicates that the soil has features that are moderately favorable for the specified use. The limitations can be overcome or minimized by special planning, design, or installation. Fair performance and moderate maintenance can be expected. Very limited indicates that the soil has one or more features that are unfavorable for the specified use. The limitations generally cannot be overcome without major soil reclamation, special design, or expensive installation procedures. Poor performance and high maintenance can be expected. Numerical ratings in the table indicate the severity of individual limitations. The ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate gradations between the point at which a soil feature has the greatest negative impact on the use (1.00) and the point at which the soil feature is not a limitation (0.00). Local roads and streets have an all-weather surface and carry automobile and light truck traffic all year.They have a subgrade of cut or fill soil material;a base of gravel, crushed rock, or soil material stabilized by lime or cement; and a surface of flexible material (asphalt), rigid material (concrete), or gravel with a binder. The ratings are based on the soil properties that affect the ease of excavation and grading and the traffic-supporting capacity. The properties that affect the ease of excavation and grading are depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, depth to a water table, ponding, flooding, the amount of large stones, and slope.The properties that affect the traffic-supporting capacity are soil strength (as inferred from the AASHTO group index number), subsidence, linear extensibility (shrink-swell potential), the potential for frost action, depth to a water table, and ponding. Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet for graves, utility lines, open ditches, or other purposes. The ratings are based on the soil properties that influence the ease of digging and the resistance to sloughing. Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the amount of large stones, and dense layers influence the ease of digging, filling, and compacting. Depth to the seasonal high water table, flooding, and ponding may restrict the period when excavations can be made. Slope influences the ease of using machinery. Soil texture, depth to the water table, and linear extensibility (shrink-swell potential) influence the resistance to sloughing. • USDA Natural Resources Web Soil Survey 10/28/2016 a Conservation Service National Cooperative Soil Survey Page 1 of 5 Roads and Streets,Shallow Excavations,and Lawns and Landscaping--Albemarle County, Woolen Mills Light Industrial Park Virginia,and Charlottesville City,Virginia Lawns and landscaping require soils on which turf and ornamental trees and shrubs can be established and maintained. Irrigation is not considered in the ratings. The ratings are based on the soil properties that affect plant growth and trafficability after vegetation is established.The properties that affect plant growth are reaction; depth to a water table; ponding; depth to bedrock or a cemented pan; the available water capacity in the upper 40 inches; the content of salts, sodium, or calcium carbonate; and sulfidic materials. The properties that affect trafficability are flooding, depth to a water table, ponding,slope,stoniness,and the amount of sand, clay, or organic matter in the surface layer. Information in this table is intended for land use planning, for evaluating land use alternatives, and for planning site investigations prior to design and construction. The information, however, has limitations. For example, estimates and other data generally apply only to that part of the soil between the surface and a depth of 5 to 7 feet. Because of the map scale, small areas of different soils may be included within the mapped areas of a specific soil. The information is not site specific and does not eliminate the need for onsite • investigation of the soils or for testing and analysis by personnel experienced in the design and construction of engineering works. Government ordinances and regulations that restrict certain land uses or impose specific design criteria were not considered in preparing the information in this table. Local ordinances and regulations should be considered in planning, in site selection, and in design. Report—Roads 'and Streets, Shallow Excavations, and Lawns and Landscaping [Onsite investigation may be needed to validate the interpretations in this table and to confirm the identity of the soil on a given site. The numbers in the value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. The table shows only the top five limitations for any given soil. The soil may have additional limitations] Roads and.Streets,Shallow Excavations,and Lawnsand Landscaping—Albemarle County,Virginia Map symbol and soil Pct.of Lawns and landscaping 'Local roads and streets Shallow.excavations ' name map unit ,Rating class and Value Rating class and Value Rating class and Value limiting features ' limiting features limiting.features 10—Buncombe loamy sand _ Buncombe 85 Verylimited Very limited Somewhat limited Flooding 1.00 Flooding 1.00 Flooding 0.80 Low exchange 1.00 Unstable excavation 0.73 capacity walls Droughty 0.96 • USDA Natural Resources - Web Soil Survey 10/28/2016 a Conservation Service National Cooperative Soil Survey Page 2 of 5 • Roads and Streets, Shallow Excavations,and Lawns and Landscaping---Albemarle County, Woolen Mills Light Industrial Park Virginia,and Charlottesville City,Virginia Roads and Streets,Shallow Excavations,and Lawns and Landscaping-Albemarle County,Virginia Map symbol and soil Pct.of Lawns and landscaping Local roads and streets Shallow excavations name map unit Rating class and Value Rating class and Value Rating class and Value limiting features limiting features limiting features 12C-Catoctin silt loam,7 to 15 percent slopes Catoctin 80 Somewhat limited Somewhat limited Very limited Low exchange 0.75 Depth to hard bedrock 0.64 Depth to hard bedrock 1.00 capacity Depth to bedrock 0.65 Frost action 0.50 Slope 0.37 Slope 0.37 Slope 0.37 Dusty 0.07 Droughty 0.16 Unstable excavation 0.01 walls Dusty 0.07 12D-Catoctin silt loam,15 to 25 percent slopes Catoctin 80 Very limited Very limited Very limited Slope 1.00 Slope 1.00 Depth to hard bedrock 1.00 Low exchange 0.75 Depth to hard bedrock 0.64 Slope 1.00 capacity Depth to bedrock 0.65 Frost action 0.50 Dusty 0.07 Droughty 0.16 Unstable excavation 0.01 walls Dusty 0.07 12E-Catoctin silt loam,25 to 45 percent slopes Catoctin 75 Very limited Very limited Very limited Slope 1.00 Slope 1.00 Depth to hard bedrock 1.00 Low exchange 0.75 Depth to hard bedrock 0.64 Slope 1.00 capacity Depth to bedrock 0.65 Frost action 0.50 Dusty 0.07 Draughty 0.16 Unstable excavation 0.01 walls Dusty 0.07 USDA Natural Resources Web Soil Survey 10/28/2016 1111. Conservation Service National Cooperative Soil Survey Page 3 of 5 • Roads and Streets,Shallow Excavations,and Lawns and Landscaping-Albemarle County, Woolen Mills Light Industrial Park Virginia,and Charlottesville City,Virginia Roads and Streets,Shallow Excavations,and Lawns and Landscaping-Albemarle County,Virginia Map symbol and soil Pct.of Lawns and landscaping - Local roads and streets Shallow excavations name map unit Rating class and Value Rating class and Value Rating class and Value limiting features limiting features limiting features 558-McQueen loam, 2 to 7 percent slopes Mcqueen 85 Somewhat limited Very limited Somewhat limited Low exchange 0.75 Low strength 1.00 Too clayey 0.13 capacity Dusty 0.06 Shrink-swell 0.50 Dusty 0.06 • Flooding 0.40 Depth to saturated 0.03 zone Unstable excavation 0.01 walls 77-Riverview- Chewacla complex Riverview 50 Somewhat limited Very limited Somewhat limited Low exchange 0.75 Flooding 1.00 Depth to saturated 0.61 capacity zone Flooding 0.60 Low strength 0.78 Flooding 0.60 Dusty 0.06 Dusty 0.06 Unstable excavation 0.01 walls Chewacla 40 Somewhat limited Very limited Very limited Depth to.saturated 0.99 Flooding 1.00, Depth to saturated1.00 zone zone Flooding 0.60 Low strength 1.00 Flooding 0.60 Low exchange 0.50 Depth to saturated 0.99 Dusty 0.08 capacity zone Dusty - 0.08 Unstable excavation 0A1 walls 83-Toccoa fine sandy loam Toccoa 85 Very limited Very limited Somewhat limited Flooding 1.00 Flooding 1.00 Flooding 0.80 Low exchange 1.00 Depth to saturated 0.73 capacity zone Dusty 0.01 Unstable excavation 0.01 walls Dusty 0.01 88-Udorthents, loamy Udorthents 85 Not rated Not rated Not rated USDA Natural Resources Web Soil Survey 10/28/2016 a. Conservation Service National Cooperative Soil Survey Page 4 of 5 • Roads and Streets,Shallow Excavations,and Lawns and Landscaping--Albemarle County, Woolen Mills Light Industrial Park Virginia,and Charlottesville City,Virginia Roads and Streets,Shallow Excavations,and Lawns and Landscaping—Charlottesville City,Virginia Map symbol and soil Pct.of Lawns and landscaping Local roads and streets Shallow excavations name map unit Rating class and Value Rating class and Value Rating class and Value limiting features limiting features limiting features 91—Urban land Urban land 85 Not rated Not rated Not rated Data Source Information Soil Survey Area: Albemarle County, Virginia Survey Area Data: Version 10, Dec 11, 2013 Soil Survey Area: Charlottesville City, Virginia Survey Area Data: Version 3, Dec 11, 2013 USDA Natural Resources Web Soil Survey 10/28/2016 a Conservation Service National Cooperative Soil Survey Page 5 of 5 • Physical Soil Properties---Albemarle County,Virginia,and Charlottesville City,Virginia Woolen Mills Light Industrial Park Physical Soil Properties This table shows estimates of some physical characteristics and features that affect soil behavior. These estimates are given for the layers of each soil in the survey area. The estimates are based on field observations and on test data for these and similar soils. Depth to the upper and lower boundaries of each layer is indicated. Particle size is the effective diameter of a soil particle as measured by sedimentation, sieving, or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits. The broad classes are sand, silt, and clay, ranging from the larger to the smaller. Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to 2 millimeters in diameter. In this table, the estimated sand content of each soil layer is given as a percentage, by weight,of the soil material that is less than 2 millimeters in diameter. Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05 millimeter in diameter. In this table, the estimated silt content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Clay as a soil separate consists of mineral soil particles that are less than 0.002 millimeter in diameter. In this table, the estimated clay content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of sand, silt, and clay affects the physical behavior of a soil. Particle size is important for engineering and agronomic interpretations, for determination of soil hydrologic qualities, and for soil classification. The amount and kind of clay affect the fertility and physical condition of the soil and the ability of the soil to adsorb cations and to retain moisture.They influence shrink- swell potential, saturated hydraulic conductivity (Ksat), plasticity, the ease of soil dispersion, and other soil properties. The amount and kind of clay in a soil also affect tillage and earthmoving operations. Moist bulk density is the weight of soil (ovendry) per unit volume. Volume is measured when the soil is at field moisture capacity, that is, the moisture content at 1/3-or 1/10-bar(33kPa or 10kPa) moisture tension. Weight is determined after the soil is dried at 105 degrees C. In the table, the estimated moist bulk density of each soil horizon is expressed in grams per cubic centimeter of soil material that is less than 2 millimeters in diameter. Bulk density data are used to compute linear extensibility, shrink-swell potential, available water capacity, total pore space, and other soil properties. The moist bulk density of a soil indicates the pore space available for water and roots. Depending on soil texture,a bulk density of more than 1.4 can restrict water storage and root penetration. Moist bulk density is influenced by texture, kind of clay, content of organic matter, and soil structure. USDA Natural Resources Web Soil Survey 10/28/2016 a Conservation Service National Cooperative Soil Survey Page 1 of 7 Physical Soil Properties---Albemarle County,Virginia, and Charlottesville City,Virginia Woolen Mills Light Industrial Park ' Saturated hydraulic conductivity(Ksat) refers to the ease with which pores in a saturated soil transmit water. The estimates in the table are expressed in terms of micrometers per second. They are based on soil characteristics observed in the field, particularly structure, porosity, and texture. Saturated hydraulic conductivity (Ksat) is considered in the design of soil drainage systems and septic tank absorption fields. Available water capacity refers to the quantity of water that the soil is capable of storing for use by plants. The capacity for water storage is given in inches of water per inch of soil for each soil layer. The capacity varies, depending on soil properties that affect retention of water. The most important properties are the content of organic matter,soil texture,bulk density,and soil structure.Available water capacity is an important factor in the choice of plants or crops to be grown and in the design and management of irrigation systems. Available water capacity is not an estimate of the quantity of water actually available to plants at any given time. Linear extensibility refers to the change in length of an unconfined clod as moisture content is decreased from a moist to a dry state. It is an expression of the volume change between the water content of the clod at 1/3-or 1/10-bar tension (33kPa or 10kPa tension) and oven dryness. The volume change is reported in the table as percent change for the whole soil. The amount and type of clay minerals in the soil influence volume change. Linear extensibility is used to determine the shrink-swell potential of soils. The shrink-swell potential is low if the soil has a linear extensibility of less than 3 percent; moderate if 3 to 6 percent;high if 6 to 9 percent;and very high if more than 9 percent. If the linear extensibility is more than 3, shrinking and swelling can cause damage to buildings, roads, and other structures and to plant roots. Special design commonly is needed. Organic matter is the plant and animal residue in the soil at various stages of decomposition. In this table, the estimated content of organic matter is expressed as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of organic matter in a soil can be maintained by returning crop residue to the soil. Organic matter has a positive effect on available water capacity, water infiltration, soil organism activity,and tilth. It is a source of nitrogen and other nutrients for crops and soil organisms. Erosion factors are shown in the table as the K factor(Kw and Kf)and the T factor. Erosion factor K indicates the susceptibility of a soil to sheet and rill erosion by water. Factor K is one of six factors used in the Universal Soil Loss Equation(USLE) and the Revised Universal Soil Loss Equation (RUSLE) to predict the average annual rate of soil loss by sheet and rill erosion in tons per acre per year. The estimates are based primarily on percentage of silt, sand, and organic matter and on soil structure and Ksat.Values of K range from 0.02 to 0.69. Other factors being equal, the higher the value, the more susceptible the soil is to sheet and rill erosion by water. Erosion factor Kw indicates the erodibility of the whole soil. The estimates are modified by the presence of rock fragments. Erosion factor Kf indicates the erodibility of the fine-earth fraction, or the material less than 2 millimeters in size. USDA Natural Resources Web Soil Survey 10/28/2016 1140 Conservation Service National Cooperative Soil Survey Page 2 of 7 • Physical Soil Properties---Albemarle County,Virginia,and Charlottesville City,Virginia Woolen Mills Light Industrial Park Erosion factor T is an estimate of the maximum average annual rate of soil erosion by wind and/or water that can occur without affecting crop productivity over a sustained period. The rate is in tons per acre per year. Wind erodibility groups are made up of soils that have similar properties affecting their susceptibility to wind erosion in cultivated areas. The soils assigned to group 1 are the most susceptible to wind erosion, and those assigned to group 8 are the least susceptible. The groups are described in the "National Soil Survey Handbook." Wind erodibility index is a numerical value indicating the susceptibility of soil to wind erosion,or the tons per acre per year that can be expected to be lost to wind erosion. There is a close correlation between wind erosion and the texture of the surface layer, the size and durability of surface clods, rock fragments, organic matter, and a calcareous reaction. Soil moisture and frozen soil layers also influence wind erosion. Reference: United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. (http://soils.usda.gov) USDA Natural Resources Web Soil Survey 10/28/2016 1110 Conservation Service National Cooperative Soil Survey Page 3 of 7 Physical Soil Properties-Albemarle County,Virginia,and Charlottesville City,Virginia Report-Physical Soil Properties Three values are provided to identify the expected Low(L), Representative Value (R), and High (H). Physical Soil Properties-Albemarle County,Virginia Map symbol Depth Sand Silt Clay Moist Saturated' Available Linear Organic Erosion and soil name bulk hydraulic water extensibility matter factors .density conductivity capacity Kw Kf In Pot Pct Pct g/cc micro m/sec In/In Pct Pct 10-Buncombe loamy sand Buncombe 0-10 -84- -9- 3-8-12 1.60-1.68 42.00-92.00-14 0.06-0.08-0. 0.0-1.5-2.9 0.5-0.8- .05 .05 -1.75 1.00 10 1.0 10-43 -91- -2- 3-8-12 1.60-1.68 42.00-92.00-14 0.03-0.05-0. 0.0-1.5-2.9 0.0-0.3- .02 .02 -1.75 1.00 07 0.5 43-79 -84- -9- 3-8-12 1.60-1.68 42.00=92.00-14 0.06-0.08-0. 0.0-1.5-2.9 0.0-0.1- .05 .05 -1.75 1.00 10 0.1 12C-Catoctin silt loam,7 to 15 percent slopes Catoctin 0-5 -31- -57- 5-13-20 1.20-1.35 14.00-28.00-42. 0.14-0.17-0. 0.0-1.5-2.9 0.5-1.3- .43 .43 -1.50 00 20 2.0 5-18 -22- -55- 10-23-35 1.20-1.35 14.00-28.00-42. 0.08-0.12-0. 0.0-1.5-2.9 0.0-0.3- .17 .43 -1.50 00 16 0.5 18-28 -29- -53- 10-18-25 1.20-1.35 14.00-28.00-42. 0.04-0.10-0. 0.0-1.5-2.9 0.0-0.3- .10 .49 -1.50 00 15 0.5 28-79 - - - - 0.00-21.00-42.0 - - - 0 USDA Natural Resources Web Soil Survey a Conservation Service National Cooperative Soil Survey • Physical Soil Properties--Albemarle County,Virginia,and Charlottesville City,Virginia Physical Soil Properties-Albemarle County,Virginia Map symbol Depth Sand Silt Clay Moist Saturated Available Linear Organic Erosior and soil name bulk hydraulic water extensibility matter factors density conductivity capacity Kw Kf In Pct Pct Pct g/cc micro m/sec In/In Pct Pct 112D-Catoctin silt loam,15 to 25 percent slopes Catoctin 0-5 -31- -57- 5-13-20 1.20-1.35 14.00-28.00-42. 0.14-0.17-0. !0.0-1.5-2.9 0.5-1.3- .43 .43 . -1.50 00 20 2.0 5-18 -22- -55- 10-23-35 1.20-1.35 14.00-28.00-42. 0.08-0.12-0. 0.0-1.5-2.9 0.0-0.3- .17 .43 -1.50 00 16 0.5 18-28 -29- -53- 10-18-25 1.20-1.35 14.00-28.00-42. ,0.04-0.10-0. 0.0-1.5-2.9 0.0-0.3- .10 .49 -1.50 00 15 0.5 28-79 - - - - 0.00-21.00-42.0 - - - 0 12E-Catoctin silt loam,25 to 45 percent slopes Catoctin 0-5 -31- -57- 5-13-20 1.20-1.35 14.00-28.00-42. 0.14-0.17-0. 0.0-1.5-2.9 0.5-1.3- .43 .43 -1.50 00 20 2.0 5-18 -22- -55- 10-23-35 1.20-1.35 14.00-28.00-42. 0.08-0.12-0. 0.0-1.5-2.9 0.0-0.3- .17 1.43 -1.50 00 16 0.5 18-28 -29- -53- 10-18-25 1.20-1.35 14.00-28.00-42. 0.04-0.10-0. 0.0-1.5-2.9 0.0-0.3- .10 .49 -1.50 00 15 ' 0.5 28-79 - - - - 0.00-21.00-42.0 - - - 0 USDA Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey Physical Soil Properties---Albemarle County,Virginia,and Charlottesville City,Virginia 'Physical Soil Properties-Albemarle County,Virginia Map symbol Depth Sand Silt Clay Moist Saturated Available Linear Organic Erosion and soil name bulk hydraulic water extensibility matter factors density conductivity capacity Kw Kf.. In Pct Pct Pct g/cc micro m/sec In/In Pct Pct 55B-McQueen loam,2 to 7 percent slopes Mcqueen 0-7 -42- -37- 12-21-30 1.20-1.35 4.00-9.00-14.00 0.14-0.17-0. 0.0-1.5.2.9 0.5-1.3- .37 .37 -1.50 20 2.0 7-42 -26- -29- 35-45-55 1.20-1.35 0.42-0.90-1.40 0.14-0.16-0. 3.0-4.5-5.9 0.0-0.3- .24 .24 -1.50 18 0.5 42-52 -34- -32- 27-34-40 1.20-1.35 1.40-2.70-4.00 0.14-0.16-0. 0.0-1.5-2.9 0.0-0.3- .32 .32 -1.50 18 0.5 52-79 -60- -18- 12-22-32 1.25-1.40 1.40-2.70-4.00 0.14-0.16-0. 0.0-1.5-2.9 0.0-0.3- .28 .28 -1.55 18 0.5 77-Riverview- Chewacla complex Riverview 0-12 -43- -39- 10-19-27 1.30-1.45 4.00-9.00-14.00 0.16-0.20-0. 0.0-1.5-2.9 0.5-1.3- .32 .32 -1.60 24 2.0 12-35 -19- -54- 18-27-35 1.20-1.30 4.00-9.00-14.00 0.15-0.19-0. 0.0-1.5-2.9 0.5-0.8- .43 .43 -1.40 22 1.0 35-79 -33- -56- 4-11-18 1.20-1.35 14.00-28.00-42. 0.07-0.09-0. 0.0-1.5-2.9 0.5-0.8- .49 .49 -1.50 00 11 1.0 Chewacla 0-8 -22- -55- 10-237 35 1.30-1.45 4.00-9.00-14.00 0.15-0.20-0. 0.0-1.5-2:9 1.0-2.5- .32 .32 -1.60 24 410 8-16 -19- -54- 18-27-35 1.30-1.40 4.00-9.00-14.00 0.15-020-0. 0.0-1.5-2.9 0.5-1.3- .43 .43 -1.50 24 2.0 16-26 -151 -57- 18-28-35 1.30-1.45 4.00-9.00-14.00 0.12-0.16-0. 0.0-.1.5-'2.9 0.5-1.3- A3 .43 -1.60 20 2.0 26-40 -15- -57- 18-28-35 1.30-1.40 4.00-9.00-14.00 .0.15-0.20-0. . 0.0-1.5-2.9 0.5-1.3 .43 .43 -1.50 24 2.0 40-79 -22- " -56 10-23-35 1.30-1.45 4.00-9.00-14.00..0.15-0.20-0. 0.0 1.52.9 0.5-1.3- .43 .43 I -1.60 24 2.0 USDA Natural Resources Web Soil Survey a Conservation Service National Cooperative Soil Survey Physical Soil Properties---Albemarle County,Virginia. and Charlottesville City.Virginia Physical Soil Properties—Albemarle County,Virginia Map symbol Depth Sand Silt Clay Moist Saturated Available Linear Organic Erosior and soil name bulk hydraulic water extensibility matter factors density conductivity capacity Kw Kf i In Pct Pct Pct g/cc micro m/sec 1 In In Pct Pct 83—Toccoa fine sandy loam Toccoa 0-9 -70- -22- 2-9-15 1.40-1.48 14.00-28.00-42. 0.09-0.11-0. 0.0-1.5-2.9 1.0-1.5- .24 .24 -1.55 00 12 2.0 9-79 -66- -23- 2-11-19 1.40-1.45 14.00-28.00-42. 0.09-0.11-0. 0.0-1.5-2.9 0.0-0.3- .28 .28 -1.50 OD 12 ' 0.5 88— Udorthents, loamy Udorthents — — — — — — — — — Physical Soil Properties—Charlottesville City,Virginia Map symbol Depth Sand Silt Clay Moist Saturated Available Linear Organic Erosior and soil name bulk hydraulic water extensibility matter factors density conductivity capacity Kw Kf In Pct Pct Pct g/cc micro m/sec ' In/In Pct Pct 91—Urban land Urban land 0-6 — — — — 0.01-1.00-92.00 — — — 6-79 — — — — 0.01-1.00-92.00 — — — Data Source Information Soil Survey Area: Albemarle County, Virginia Survey Area Data: Version 10, Dec 11, 2013 Soil Survey Area: Charlottesville City, Virginia Survey Area Data: Version 3, Dec 11, 2013 wigNatural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey • Soil Features--Albemarle County,Virginia, and-Charlottesville City,Virginia Woolen Mills Light Industrial Park Soil Features This table gives estimates of various soil features. The estimates are used in land use planning that involves engineering considerations. A restrictive layer is a nearly continuous layer that has one or more physical, chemical, or thermal properties that significantly impede the movement of water and air through the soil or that restrict roots or otherwise provide an unfavorable root environment. Examples are bedrock, cemented layers, dense layers, and frozen layers.The table indicates the hardness and thickness of the restrictive layer, both of which significantly affect the ease of excavation. Depth to top is the vertical distance from the soil surface to the upper boundary of the restrictive layer. Subsidence is the settlement of organic soils or of saturated mineral soils of very low density. Subsidence generally results from either desiccation and shrinkage, or oxidation of organic material,or both,following drainage.Subsidence takes place gradually, usually over a period of several years. The table shows the expected initial subsidence,which usually is a result of drainage, and total subsidence,which results from a combination of factors. Potential for frost action is the likelihood of upward or lateral expansion of the soil caused by the formation of segregated ice lenses(frost heave)and the subsequent collapse of the soil and loss of strength on thawing. Frost action occurs when moisture moves into the freezing zone of the soil. Temperature, texture, density, saturated hydraulic conductivity (Ksat), content of organic matter, and depth to the water table are the most important factors considered in evaluating the potential for frost action. It is assumed that the soil is not insulated by vegetation or snow and is not artificially drained. Silty and highly structured, clayey soils that have a high water table in winter are the most susceptible to frost action. Well drained, very gravelly, or very sandy soils are the least susceptible. Frost heave and low soil strength during thawing cause damage to pavements and other rigid structures. Risk of corrosion pertains to potential soil-induced electrochemical or chemical action that corrodes or weakens uncoated steel or concrete. The rate of corrosion of uncoated steel is related to such factors as soil moisture, particle-size distribution, acidity, and electrical conductivity of the soil. The rate of corrosion of concrete is based mainly on the sulfate and sodium content, texture, moisture content, and acidity of the soil.Special site examination and design may be needed if the combination of factors results in a severe hazard of corrosion. The steel or concrete in installations that intersect soil boundaries or soil layers is more susceptible to corrosion than the steel or concrete in installations that are entirely within one kind of soil or within one soil layer. For uncoated steel, the risk of corrosion, expressed as low, moderate, or high, is based on soil drainage class, total acidity, electrical resistivity near field capacity, and electrical conductivity of the saturation extract. For concrete, the risk of corrosion also is expressed as low, moderate, or high. It is based on soil texture, acidity, and amount of sulfates in the saturation extract. USDA Natural Resources Web Soil Survey 10/28/2016 a Conservation Service National Cooperative Soil Survey Page 1 of 4 Soil Features--Albemarle County,Virginia,and Charlottesville City,Virginia • Report—Soil Features Soil Features—Albemarle County„Virginia Map symbol and Restrictive Layer Subsidence Potential for frost 'soil name action Kind Depth to Thickness Hardness Initial Total Una; .. . top • Low-RV- Range Low- Low- High High High In In In In 10—Buncombe loamy sand Buncombe — — — — None Low 12C—Catoctin silt loam,7 to 15 • percent slopes Catoctin Lithic bedrock 20- — Indurated — — Moderate Low 28-40 , 12D—Catoctin silt • loam, 15 to 25 percent slopes Catoctin Lithic bedrock 20- — Indurated — — Moderate Low 28-40 12E—Catoctin silt loam,25 to 45 percent slopes Catoctin Lithic bedrock 20- — Indurated — — Moderate Low 28-40 558—McQueen loam,2 to 7 percent slopes Mcqueen — — — — None Madera USDA Natural Resources Web Soil Survey a Conservation Service National Cooperative Soil Survey • , Soil Features--Albemarle County,Virginia,and enarlottesville City,Virginia Soil Features—Albemarle County,Virginia Map symbol and Restrictive Layer Subsidence Potential for frost soil name ----- --- action Kind Depth to Thickness Hardness Initial Total Unco top Low-RV- Range Low- Low- High High High 77—Riverview- Chewacla complex Riverview — — — — None High Chewacla — — ` — None High 83—Toccoa fine sandy loam Toccoa — — — — None Modera 88—Udorthents, loamy Udorthents — — — Soil Features—Charlottesville City,Virginia Map symbol and Restrictive Layer Subsidence Potential for frost soil name action Kind Depth to Thickness Hardness Initial Total Unco top Low-RV- Range Low- Low- High High High In I!n In In 91—Urban land Urban land Densic material 10 — — — USDA Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey Soil Features---Albemarle County,Virginia, and Charlottesville City,Virginia Data Source Information Soil Survey Area: Albemarle County, Virginia Survey Area Data: Version 10, Dec 11, 2013 Soil Survey Area: Charlottesville City, Virginia Survey Area Data: Version 3, Dec 11, 2013 USDA Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey f Hydrologic Soil Group and Surface Runoff---Albemarle County,Virginia,and Charlottesville City, Woolen Mills Light Industrial Park Virginia Hydrologic Soil Group and Surface Runoff This table gives estimates of various soil water features. The estimates are used in land use planning that involves engineering considerations. Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The four hydrologic soil groups are: Group A. Soils having a high infiltration rate (low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (ND, BID, or C/D), the first letter is for drained areas and the second is for undrained areas. Surface runoff refers to the loss of water from an area by flow over the land surface. Surface runoff classes are based on slope, climate, and vegetative cover. The concept indicates relative runoff for very specific conditions. It is assumed that the surface of the soil is bare and that the retention of surface water resulting from irregularities in the ground surface is minimal.The classes are negligible, very low, low, medium, high, and very high. Report—Hydrologic Soil Group and Surface Runoff Absence of an entry indicates that the data were not estimated. The dash indicates no documented presence. Hydrologic Soil Group and Surface Runoff—Albemarle County,Virginia Map symbol and soil name Pct.of map unit Surface Runoff Hydrologic Soil Group • 10—Buncombe loamy sand Buncombe 85 Very low A USDA Natural Resources Web Soil Survey 10/28/2016 01.710 Conservation Service National Cooperative Soil Survey Page 1 of 2 Hydrologic Soil Group and Surface Runoff—Albemarle County,Virginia,and Charlottesville City, Woolen Mills Light Industrial Park Virginia Hydrologic Soil Group and Surface Runoff—Albemarle County,Virginia Map symbol and soil name Pct.of map unit Surface Runoff Hydrologic Soil Group. 12C—Catoctin silt loam,7 to 15 percent slopes Catoctin • 80 Low B 12D—Catoctin silt loam,15 to 25 percent slopes Catoctin 80 Medium B 12E—Catoctin silt loam,25 to 45 percent slopes Catoctin 75 Medium B 55B—McQueen loam,2 to 7 percent slopes Mcqueen 85 High C 77—Riverview-Chewacla complex Riverview 50 Low B Chewaca 40 Very high B/D 83—Toccoa fine sandy loam Toccoa 85 Very low A 88—Udorthents,loamy Udorthents 85 — Hydrologic Soil Group and Surface Runoff—Charlottesville City,Virginia Map symbol and soil name Pct.of map unit Surface Runoff Hydrologic Soil Group 91—Urban land Urban land 85 Medium — Data Source Information Soil Survey Area: Albemarle County, Virginia Survey Area Data: Version 10, Dec 11, 2013 Soil Survey Area: Charlottesville City, Virginia Survey Area Data: Version 3, Dec 11, 2013 UsnD Natural Resources Web Soil Survey 10/28/2016 Conservation Service National Cooperative Soil Survey Page 2 of 2