street map to find your town. Reading soil test results can be overwhelming and can be hard to digest all this information. In the meantime, please . var imgMarginBottom = dom_i.query(this).css("margin-bottom") == undefined ? '' Soils in the lower middle with less than 50% clay are loams. } Turn to the Index to Map Units which shows the page where these map units are described. dom_i.query = jQuery.noConflict(true); To use the tables, simply remember your map unit symbol and find it in the appropriate table. 3. Check the “crop” being grown under client’s name. What Are Soil Maps? It provides access to the largest natural resource information system in the world. Block Diagram Locator. dom_i.query(this).css("margin","0"); var imgWidth = dom_i.query(this).css("width") == undefined ? The third or fourth letter in the numerator refers to soil modifier1 or soil modifier2 as follows: A – Stony surface phase. //dom_i.query(imgDiv).append(""); of Agriculture United States. imgMarginTop = imgMarginTop.replace("px",""); More than 3,750 block diagrams (line drawings) from published soil surveys. 707 0 obj <>/Filter/FlateDecode/ID[<69E8AF194CD09E49B6538F9B5D5E9852>]/Index[694 23]/Info 693 0 R/Length 70/Prev 501044/Root 695 0 R/Size 717/Type/XRef/W[1 2 1]>>stream dom_i.query(this).after("

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"); Soil pH - Soil pH is an indicator of the level of acidity or alkalinity of the soil, ranging from 0-14. Link to this table imgMarginBottom = imgMarginBottom.replace("px",""); or longer in the ribbon test, it indicates that the soil has high clay content and may fail a standard perc test. h�b```f``������o� Ȁ ��l,"k�8ç60� K\��S���-�"Xz�Vj�P�yu 3��+:@�A�Lw00��T���*?Hs�"��$�,�L��>2�2�3�3]dz���p�!�!���!�Q�u�vvh$�BQ�|���@���*���x9a����^������ث!|��@�����������������A�+ؗ�C5�0 3�>� dom_i.query(this).css("float","none"); Soil maps, soil classifications, and the resulting soil-mapping units (SMUs) are representations of the structured expert knowledge of soil surveyors (Bui, 2004), and are based on field observations, knowledge of the functioning of dominant soil-forming factors, and available data. 10 : dom_i.query(this).css("margin-top").trim(); }else{ chalk cliffs eroding into the earth. Soil Type: Name of the soil found. if(imgTitle != ''){ 694 0 obj <> endobj %PDF-1.6 %���� in the area of interest. currently working with D.C. government officials to remedy the situation. print. } A basic site plan may be accompanied by other plans that detail landscaping, utility corridors, building design, easements, lighting, soil erosion control, stormwater management, and more. This tells the soil scientist what group the soil is in. : dom_i.query(this).css("margin-left").trim(); You can also enter a placename or postcode on the location textbox at the top-left of the screen. The heaviest soil particles, like sand, will settle first, then silt, then clay. }) NutrientAvailabilityIndex. These maps have simplified this by assuming normal Site Class “D” soils, which are the most commonly found. Please note that the interactive D.C. soil map on GCAAR's website is temporarily disabled. the soil map. If, after reviewing the soil survey report, you still have unanswered questions about the soil survey or your soil, please contact the USDA Natural Resources Conservation Service or conservation district office nearest you. The values shown in this table are for uncompacted soils. If you don’t see this option select "Tools" from the menu on the main mapping page then "Options", "Options Page" and click the circle next to "print maps from a web page" and click "Save". dom_i.query(this).attr("title",imgAlt); Read the full process here… Determine how porous is the soil The soil survey has maps with soil boundaries and photos, descriptions, and tables of soil properties and features. The soil survey report may have other useful information such as the general soils map, prime farmland, use and management of soils, processes and factors of soil formation, and landforms and surface geology. 0 The geology of any area can help to determine the presence of minerals, availability of groundwater, likelihood of landslides, potential for earthquake damage, and even the best plants that can grow in an area. imgMarginLeft = imgMarginLeft.replace("px",""); In general, the lowest loading rate observed in the upper 30 to 42 inches of the soils examined is used for septic system design and sizing. Compare pH on bar graph to “Recommended pH” 4. It is the key to finding information. The small letters or numbers that are within the same polygon as your area of interest, such as ScC, or KnC, or LaC designate a map unit.