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" .�. 48• t.•. :�'4 _ - :nn` P.S. DEPARTMENT OF AGRICULTURE PAGE 1 OF 1 NATURAL RESOURCES CONSERVATION SERVICE 10/23/01 PRIME FARMLAND Gina Rhodes Report Map I Soil name symbol) 40 l Nunn loam, 1 to 3 percent slopes (where irrigated) 47 'Olney fine sandy loam, 1 to 3 percent slopes (where irrigated) 51 (Otero sandy loam, 1 to 3 percent slopes (where irrigated) 76 Vona sandy loam, 1 to 3 percent slopes (where irrigated) NONTECHNICAL SOILS DESCRIPTION REPORT Gina Rhodes Report Map Soil name and description Symbol 40 Nunn loam, 1 to 3 percent slopes The Nunn soil is a deep, well drained soil. It is formed on terraces from eolian material. The surface is a loam. The subsoil is clay loam. The underlying material is clay loam and sandy loam. The soils have moderately slow permeability. Their available water holding capacity is high. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is moderate. 47 I Olney fine sandy loam, 1 to 3 percent slopes The Olney soil is a deep, well drained soil. It is formed on smooth plains in mixed outwash deposits. The surface is a fine sandy loam. The subsoil is sandy clay loam. The underlying material is a calcareous fine sandy loam. The soils have moderate permeability. Their available water holding capacity is moderate. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is severe. 51 Otero sandy loam, 1 to 3 percent slopes The Otero soil is a deep, well drained soil. It is formed on smooth plains in mixed outwash deposits. The surface is a sandy loam. The underlying material is a calcareous fine sandy loam. The soils have rapid permeability. Their available water holding capacity is moderate. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is severe. 64 I Thedalund loam, 1 to 3 percent slopes The Thedalund soil is a moderately deep, well drained soil. It is formed on plains in residuum from shale material. The surface is a loam. The underlying material is a loam. The soils have moderate permeability. Their available water holding capacity is moderate. Roots penetrate to the depth of the shale, which ranges from 20 to 40 inches. Runoff is medium and the erosion hazard due to wind is moderate. 72 Vona loamy sand, 0 to 3 percent slopes NONTECHNICAL SOILS DESCRIPTION REPORT Gina Rhodes Report Map Soil name and description Symbol The Vona soil is a deep, somewhat excessively drained soil. It is formed on plains and high terraces in eolian or alluvial deposits. The surface is a fine sandy loam, as is the subsoil. The underlying material is a sandy loam. The soils have moderately rapid permeability. Their available water holding capacity is moderate. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is high. 73 I Vona loamy sand, 3 to 5 percent slopes The Vona soil is a deep, somewhat excessively drained soil. It is formed on plains and high terraces in eolian or alluvial deposits. The surface is a fine sandy loam, as is the subsoil. The underlying material is a sandy loam. The soils have moderately rapid permeability. Their available water holding capacity is moderate. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is high. 74 Vona loamy sand, 5 to 9 percent slopes The Vona soil is a deep, somewhat excessively drained soil. It is formed on plains and high terraces in eolian or alluvial deposits. The surface is a fine sandy loam, as is the subsoil. The underlying material is a sandy loam. The soils have moderately rapid permeability. Their available water holding capacity is moderate. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is high. 76 Vona sandy loam, 1 to 3 percent slopes The Vona soil is a deep, well drained soil. It is formed on high terraces from alluvial material. The surface is a sandy loam, as is the subsoil. The underlying material is a sandy loam. The soils have moderately rapid permeability. Their available water holding capacity is moderate. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is severe. 77 Vona sandy loam, 3 to 5 percent slopes Pm`, NONTECHNICAL SOILS DESCRIPTION REPORT Gina Rhodes Report Map Soil name and description • Symbol The Vona soil is a deep, well drained soil. It is formed on high terraces from alluvial material. The surface is a sandy loam, as is the subsoil. The underlying material is a sandy loam. The soils have moderately rapid permeability. Their available water holding capacity is moderate. Roots penetrate to 60 inches or more. Runoff is slow and the erosion hazard due to wind is severe. l'.S. DEPARTMENT OF AGRICULTURE PAGE 1 OF 2 NATURAL RESOURCES CONSERVATION SERVICE 10/23/01 BUILDING SITE DEVELOPMENT Gina Rhodes Report (The information in this report indicates the dominant soil condition but does not eliminate the need for onsite investigation) I Map symbol I Shallow I Dwellings I Dwellings I Small I Local roads I Lawns and and soil name I excavations I without I with I commercial I and streets I landscaping I basements I basements I buildings I I I I I I I I 40: I I I I I I Nunn 'Moderate: (Severe: (Slight Severe: (Severe: (Slight I too clayey I shrink-swell I I shrink-swell I shrink-swell, I I I low strength I I I I I I I "'TS I I I I I I Olney (Severe: ISlight 'Slight (Slight (Slight (Slight I cutbanks cave I I I I I ass's-. I I I I I I I I I Otero ISlight 'Slight (Slight 'Slight (Slight (Slight I I I I I I 64: I I I I I I Thedalund (Moderate: 'Moderate: 'Moderate: (Moderate: (Moderate: IModerate: I depth to rock I shrink-swell I depth to rock, I shrink-swell I shrink-swell I depth to rock shrink-swell I I I I I I I I I 72: I I I I I I Vona Severe: ISlight 'Slight ISlight 'Slight IModerate: I cutbanks cave I I I I I droughty I I I I I Vona FSevere: ISlight ISlight IModerate: ISlight IModerate: I cutbanks cave I I I slope I I droughty I I I I I I 74: I I I I I I vona 'Severe: ISlight ISlight 'Moderate: ISlight IModerate: I cutbanks cave I I I slope I I droughty I I I I 76: I I I I I I Vona (Severe: ISlight ISlight ISlight ISlight IModerate: I cutbanks cave I I I I I droughty I I I I I I 77: I I I I I I !tea (Severe: ISlight ISlight IModerate: 'Slight IModerate: I cutbanks cave I I I slope I I droughty I I I I I U.S. DEPARTMENT OF AGRICULTURE PAGE 2 OF 2 NATURAL RESOURCES CONSERVATION SERVICE 10/23/01 BUILDING SITE DEVELOPMENT Endnote -- BUILDING SITE DEVELOPMENT This report shows the degree and kind of soil limitations that affect shallow excavations, dwellings with and without basements, small commercial buildings, local roads and streets, and lawns and landscaping. The limitations are. "Slight", "Moderate", or "Severe". The limitations are considered "Slight" if soil properties and site features are generally favorable for the indicated use and limitaions are minor and easily overcome; "Moderate" if soil properties or site features are not favorable for the indicated use and special planning, design, or maintenance is needed to overcome or minimize the limitations; and "Severe" if soil properties or site features are so unfavorable or so difficult to overcome that special design, significant increases in construction costs, and possibly increased maintenance are required. Special feasibility studies may be required where the soil limitations are severe. SHALLOW EXCAVATIONS are trenches or holes dug to a maximum depth of 5 or 6 feet for basements, graves, utility lines, open ditches, and other purposes. The ratings are based on soil properties, site features, and observed performance of the soils. The ease of digging, filling, and compacting is affected by the depth to bedrock, a cemented pan, or a very firm dense layer; stone content; soil texture; and slope. The time of the year that excavations can be made is affected by the depth to a seasonal high water table and the susceptibility of the soil to flooding. The resistance of the excavation walls or bands to sloughing or caving is affected by soil texture and the depth to the water table. DWELLINGS AND SMALL COMMERCIAL BUILDINGS are structures built on shallow foundations on undisturbed soil. The Load limit is the same as that for single-family dwellings no higher than three stories. Ratings are made for small 5,pwoercial buildings without basements, for dwellings with basements, and for dwellings without basements. The ratings oased on soil properties, site features, and observed performance of the soils. A high water table, depth to bedrock or to a cemented pan, large stones, slope, and flooding affect the ease of excavation and construction. Landscaping and grading that require cuts and fills of more than 5 or 6 feet are not considered. 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 stabilized soil material, and a flexible or rigid surface. Cuts and fills are generally properties, site features, and observed performance of the soils. Depth to bedrock or to a cemented pan, a high water table, flooding, large stones, and slope affect the ease of excavating and grading. Soil strength (as inferred from the engineering classification of the soil), shrink-swell potential, frost action potential, and depth to a high water table affect the traffic-supporting capacity. LAWNS AND LANDSCAPING require soils on which turf and ornamental trees and shrubs can be established and maintained. The ratings are based on soil properties, site features, and observed performance of the soils. Soil reaction, a high water table, depth to bedrock or to a cemented pan, the available water capacity in the upper 40 inches, and the content of salts, sodium, and sulfidic materials affect plant growth. Flooding, wetness, slope, stoniness, and the amount of sand, clay, or organic matter in the surface layer affect trafficability after vegetation is established. L.S. DEPARTMENT OF AGRICULTURE PAGE 1 OF 3 NATURAL RESOURCES CONSERVATION SERVICE 10/23/01 I'' SANITARY FACILITIES Gina Rhodes Report (The information in this report indicates the dominant soil condition but does not eliminate the need for onsite investigation) I I I I Map symbol I Septic tank I Sewage lagoon I Trench I Area I Daily cover and soil name I absorption I areas I sanitary I sanitary I for landfill I fields I I landfill I landfill I I [ I I I I 40: [ I I I I Nunn [Severe: 'Severe: 'Slight [Slight [Fair: I percs slowly I seepage I I I small stones I I 47: I I I I I Olney [Moderate: [Severe: [Moderate: 'Slight [Fair: I percs slowly I seepage I too sandy I I too sandy I I I I I [ co [Moderate: ISevere: (Slight [Slight 'Good I percs slowly I seepage I I I I I I 64: I I I I I [S evere:Severe: [Severe: [Severe: (Slight [Poor: I depth to rock I depth to rock I depth to rock I I depth to rock I I 72: I I [ Vona ISevere: [Severe: Moderate: [Slight 'Fair: I poor filter I seepage [ too sandy I I too sandy I I I I I 73: I I I I I Vona- ._ [Severe: [Severe: (Moderate: [Slight [Fair: I poor filter I seepage I too sandy I I too sandy I I 74: i I I I Vona ISevere: [Severe: [Moderate: [Slight [Fair: I poor filter I seepage, [ too sandy I I too sandy I I slope I I I 76: I I I I I Vona [Severe: ISevere: Moderate: [Slight [Fair: I poor filter I seepage I too sandy I I too sandy I I i I I 77:^ I I -.a [Severe: [Severe: [Moderate: [Slight [Fair: I poor filter I seepage I too sandy I [ too sandy U.S. DEPARTMENT OF AGRICULTURE PAGE 2 OF 3 NATURAL RESOURCES CONSERVATION SERVICE 10/23/01 SANITARY FACILITIES Endnote -- SANITARY FACILITIES This report shows the degree and kind of soil limitations that affect septic tank absorption fields, sewage lagoons, and sanitary landfills. The limitations are considered "Slight" if soil properties and site features generally' are favorable for the indicated use and limitations are minor and easily overcome; "Moderate" if soil properties of site features are not favorable for the indicated use and special planning, design, or maintenance is needed to overcome or minimize the limitations; and "Severe" if soil properties or site features are so unfavorable or so difficult to overcome that special design, significant increases in construction costs, and possibly increased maintenance are required. This report also shows the suitability of the soils for use as daily cover for landfills. A rating of "Good" indicates that soil properties and site features are favorable for the use and good performance and low maintenance can be expected; "Fair" indicates that soil properties and site features are moderately favorable for the use and one or more soil properties or site features make the soil less desirable than the soils rated "Good"; and "Poor" indicates that one or more soil properties or site features are unfavorable for the use and overcoming the unfavorable properties requires special design, extra maintenance, or costly alteration. SEPTIC TANK ABSORPTION FIELDS are areas in which effluent from a septic tank is distributed into the soil through subsurface tiles or perforated pipe. Only that part of the soil between depths of 24 to 72 inches is evaluated. The ratings are base on soil properties, site features, and observed performance of the soils. Permeability, a high water table, depth to bedrock or to a cemented pan, and flooding affect absorption of the effluent. Large stones and bedrock or a cemented pan interfere with installation. Unsatisfactory performance of septic tank absorption fields, .,;(.1„uding excessively slow absorption of effluent, surfacing of effluent, and hillside seepage, can affect public health. Idwater can be polluted if highly permeable sand and gravel or fractured bedrock is less than 4 feet below the base of the absorption field, if slope is excessive, or if the water table is near the surface. There must be unsaturated soil material beneath the absorption field to filter the effluent effectively. Many local ordinances require that this material be of a certain thickness. SEWAGE LAGOONS are shallow ponds constructed to hold sewage while aerobic bacteria decompose the solid and liquid wastes. Lagoons should have a nearly level floor surrounded by cut slopes or embankments of compacted soil. Lagoons generally are designed to hold the sewage within a depth of 2 to 5 feet. Nearly impervious soil material for the lagoon floor and sides is required to minimize seepage and contamination of ground water. This report gives ratings for the natural soil that makes up the lagoon floor. The surface layer and, generally, 1 or 2 feet of soil material below the surface layer are excavated to provide material for the embankments. The ratings are based on soil properties, site features, and observed performance of the soils. Considered in the ratings are slope, permeability, a high water table, depth to bedrock or to a cemented pan, flooding, large stones, and content of organic matter. Excessive seepage due to rapid permeability of the soil or a water table that is high enough to raise the level of sewage in the lagoon causes a lagoon to function unsatisfactorily. Pollution results if seepage is excessive or if floodwater overtops the lagoon. A high content of organic matter is detrimental to proper functioning of the lagoon because it inhibits aerobic activity. Slope, bedrock, and cemented pans can cause construction problems, and large stones can hinder compaction of the lagoon floor. SANITARY LANDFILLS are areas where solid waste is disposed of by burying it in soil. There are two types of landfill, trench and area. In a trench landfill, the waste is placed in a trench. It is spread, compacted, and covered daily with a thin layer of soil excavated at the site. In an area landfill, the waste is placed in successive layers on the surface of the soil. The waste is spread, compacted, and covered daily with a thin layer of soil form a source away from the site. Both types of landfill must be able to bear heavy vehicular traffic. Both types involve a risk of groundwater pollution. Ease of excavation and revegetation need to be considered. The ratings in this report are based • ❑.S. DEPARTMENT OF AGRICULTURE PAGE 3 OF 3 NATURAL RESOURCES CONSERVATION SERVICE 10/23/01 SANITARY FACILITIES Endnote -- SANITARY FACILITIES--Continued • on soil properties, site features, and observed performance of the soils. Permeability, depth to bedrock or tc a cemented pan, a high water table, slope, and flooding affect both types of landfill. Texture, stones and boulders, highly organic layers, soil reaction, and content of salts and sodium affect trench type landfills. Unless otherwise stated, the ratings apply only to that part of the soil within a depth of about 6 feet. For deeper trenches, a limitation rate "Slight" or "Moderate" may not be valid. Onsite investigation is needed. DAILY COVER FOR LANDFILL is the soil material that is used to cover compacted solid waste in an area type sanitary landfill. The soil material is obtained offsite, transported to the landfill, and spread over the waste. Soil texture, wetness, coarse fragments, and slope affect the ease of removing and spreading the material during wet and dry periods. Loamy or silty soils that are free of large stones or excess gravel are the best cover for a landfill. Clayey soils may be sticky or cloddy and are difficult to spread; sandy soils are subject to soil blowing. After soil material has been removed, the soil material remaining in the borrow area must be thick enough over bedrock, a cemented pan, or the water table to permit revegetation. The soil material used as final cover for a landfill should be suitable for plants. The surface layer generally has the best workability, more organic matter than the rest of the profile, and the best potential for plants. Material from the surface layer should be stockpiled for use as the final cover. "a1 Hello