Appendix 2b. NRCS Soil Survey

Appendix 2b NRCS Soil Survey

118 19' 25'' W Nonirrigated Capability Class Antelope Valley Area, California (Del Sur Solar Site) 118 17' 28'' W 378900 379200 379500 379800 380100 380400 380700 381000 381300 381600 34 44' 3'' N 34 43' 0'' N 3842500 3842800 3843100 3843400 3843700 3844000 3844300 3842500 3842800 3843100 3843400 3843700 3844000 3844300 34 44' 3'' N 34 43' 0'' N 378900 379200 379500 379800 380100 380400 380700 381000 381300 381600 118 19' 25'' W N Map Scale: 1:13,600 if printed on A landscape (11" x 8.5") sheet. Meters 0 200 400 800 1200 Feet 0 500 1000 2000 3000 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 11N WGS84 118 17' 28'' W Page 1 of 4

Nonirrigated Capability Class Antelope Valley Area, California (Del Sur Solar Site) MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons Capability Class - I Capability Class - II Capability Class - III Capability Class - IV Capability Class - V Capability Class - VI Capability Class - VII Capability Class - VIII Soil Rating Lines Capability Class - I Capability Class - II Capability Class - III Capability Class - IV Capability Class - V Capability Class - VI Capability Class - VII Capability Class - VIII Soil Rating Points Capability Class - I Capability Class - II Capability Class - III Capability Class - IV Capability Class - V Capability Class - VI Capability Class - VII Capability Class - VIII Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: Web Mercator (EPSG:3857) Maps from the are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Antelope Valley Area, California Survey Area Data: Version 7, Sep 9, 2014 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: May 8, 2010 Oct 29, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Page 2 of 4

Nonirrigated Capability Class Antelope Valley Area, California Del Sur Solar Site Nonirrigated Capability Class AcA Nonirrigated Capability Class Summary by Map Unit Antelope Valley Area, California (CA675) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI Adelanto coarse sandy loam, 2 to 5 percent CaA Cajon loamy sand, 0 to 2 percent 7 2.3 0.3% 7 283.6 39.0% DuD Dune land 8 18.6 2.6% GsA Greenfield sandy loam, 0 to 2 percent HbA HcA HkA RcB Hanford coarse sandy loam, 0 to 2 percent Hanford sandy loam, 0 to 2 percent Hesperia fine sandy loam, 0 to 2 percent Ramona coarse sandy loam, 2 to 5 percent RfB Ramona loam, 2 to 5 percent 4 327.3 45.0% 4 24.2 3.3% 4 19.2 2.6% 7 3.8 0.5% 4 5.4 0.7% 4 43.6 6.0% Totals for Area of Interest 728.0 100.0% Page 3 of 4

Nonirrigated Capability Class Antelope Valley Area, California Del Sur Solar Site Description Land capability classification shows, in a general way, the suitability of soils for most kinds of field crops. Crops that require special management are excluded. The soils are grouped according to their limitations for field crops, the risk of damage if they are used for crops, and the way they respond to management. The criteria used in grouping the soils do not include major and generally expensive landforming that would change slope, depth, or other characteristics of the soils, nor do they include possible but unlikely major reclamation projects. Capability classification is not a substitute for interpretations that show suitability and limitations of groups of soils for rangeland, for woodland, or for engineering purposes. In the capability system, soils are generally grouped at three levels-capability class, subclass, and unit. Only class and subclass are included in this data set. Capability classes, the broadest groups, are designated by the numbers 1 through 8. The numbers indicate progressively greater limitations and narrower choices for practical use. The classes are defined as follows: Class 1 soils have few limitations that restrict their use. Class 2 soils have moderate limitations that reduce the choice of plants or that require moderate conservation practices. Class 3 soils have severe limitations that reduce the choice of plants or that require special conservation practices, or both. Class 4 soils have very severe limitations that reduce the choice of plants or that require very careful management, or both. Class 5 soils are subject to little or no erosion but have other limitations, impractical to remove, that restrict their use mainly to pasture, rangeland, forestland, or wildlife habitat. Class 6 soils have severe limitations that make them generally unsuitable for cultivation and that restrict their use mainly to pasture, rangeland, forestland, or wildlife habitat. Class 7 soils have very severe limitations that make them unsuitable for cultivation and that restrict their use mainly to grazing, forestland, or wildlife habitat. Class 8 soils and miscellaneous areas have limitations that preclude commercial plant production and that restrict their use to recreational purposes, wildlife habitat, watershed, or esthetic purposes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Page 4 of 4

118 19' 26'' W Nonirrigated Capability Subclass Antelope Valley Area, California (Del Sur Solar Site) 118 17' 27'' W 34 44' 3'' N 378800 379100 379400 379700 380000 380300 380600 380900 381200 381500 381800 3842500 3842800 3843100 3843400 3843700 3844000 3844300 3842500 3842800 3843100 3843400 3843700 3844000 3844300 34 43' 0'' N 34 43' 0'' N 378800 379100 379400 379700 380000 380300 380600 380900 381200 381500 34 44' 3'' N 118 19' 26'' W N Map Scale: 1:13,800 if printed on A landscape (11" x 8.5") sheet. Meters 0 200 400 800 1200 Feet 0 500 1000 2000 3000 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 11N WGS84 118 17' 27'' W Page 1 of 4

Nonirrigated Capability Subclass Antelope Valley Area, California (Del Sur Solar Site) MAP LEGEND MAP INFORMATION Area of Interest (AOI) Soils Area of Interest (AOI) Soil Rating Polygons Erosion Soil limitation within the rooting zone Excess water Soil Rating Lines Climate condition Erosion Soil limitation within the rooting zone Excess water Climate condition Soil Rating Points Water Features Erosion Soil limitation within the rooting zone Excess water Climate condition Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: Web Mercator (EPSG:3857) Maps from the are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Antelope Valley Area, California Survey Area Data: Version 7, Sep 9, 2014 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: May 8, 2010 Oct 29, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Page 2 of 4

Nonirrigated Capability Subclass Antelope Valley Area, California Del Sur Solar Site Nonirrigated Capability Subclass AcA Nonirrigated Capability Subclass Summary by Map Unit Antelope Valley Area, California (CA675) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI Adelanto coarse sandy loam, 2 to 5 percent CaA Cajon loamy sand, 0 to 2 percent e 2.4 0.3% e 285.1 39.0% DuD Dune land 18.8 2.6% GsA Greenfield sandy loam, 0 to 2 percent HbA HcA HkA RcB Hanford coarse sandy loam, 0 to 2 percent Hanford sandy loam, 0 to 2 percent Hesperia fine sandy loam, 0 to 2 percent Ramona coarse sandy loam, 2 to 5 percent RfB Ramona loam, 2 to 5 percent c 329.6 45.1% e 24.3 3.3% e 21.0 2.9% e 4.1 0.6% e 4.2 0.6% e 40.9 5.6% Totals for Area of Interest 730.4 100.0% Page 3 of 4

Nonirrigated Capability Subclass Antelope Valley Area, California Del Sur Solar Site Description Land capability classification shows, in a general way, the suitability of soils for most kinds of field crops. Crops that require special management are excluded. The soils are grouped according to their limitations for field crops, the risk of damage if they are used for crops, and the way they respond to management. The criteria used in grouping the soils do not include major and generally expensive landforming that would change slope, depth, or other characteristics of the soils, nor do they include possible but unlikely major reclamation projects. Capability classification is not a substitute for interpretations that show suitability and limitations of groups of soils for rangeland, for woodland, or for engineering purposes. In the capability system, soils are generally grouped at three levels-capability class, subclass, and unit. Only class and subclass are included in this data set. Capability subclasses are soil groups within one capability class. They are designated by adding a small letter, "e," "w," "s," or "c," to the class numeral, for example, 2e. The letter "e" shows that the main hazard is the risk of erosion unless close-growing plant cover is maintained; "w" shows that water in or on the soil interferes with plant growth or cultivation (in some soils the wetness can be partly corrected by artificial drainage); "s" shows that the soil is limited mainly because it is shallow, droughty, or stony; and "c," used in only some parts of the United States, shows that the chief limitation is climate that is very cold or very dry. In class 1 there are no subclasses because the soils of this class have few limitations. Class 5 contains only the subclasses indicated by "w," "s," or "c" because the soils in class 5 are subject to little or no erosion. They have other limitations that restrict their use to pasture, rangeland, forestland, or wildlife habitat. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Lower Page 4 of 4

118 19' 25'' W California Revised Storie Index (CA) Antelope Valley Area, California (Del Sur Solar Site) 118 17' 28'' W 378900 379200 379500 379800 380100 380400 380700 381000 381300 381600 34 44' 3'' N 34 43' 0'' N 3842500 3842800 3843100 3843400 3843700 3844000 3844300 3842500 3842800 3843100 3843400 3843700 3844000 3844300 34 44' 3'' N 34 43' 0'' N 378900 379200 379500 379800 380100 380400 380700 381000 381300 381600 118 19' 25'' W N Map Scale: 1:13,600 if printed on A landscape (11" x 8.5") sheet. Meters 0 200 400 800 1200 Feet 0 500 1000 2000 3000 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 11N WGS84 118 17' 28'' W Page 1 of 4

California Revised Storie Index (CA) Antelope Valley Area, California (Del Sur Solar Site) MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons Grade 1 - Excellent Grade 2 - Good Grade 3 - Fair Grade 4 - Poor Grade 5 - Very Poor Grade 6 - Nonagricultural Not rated Soil Rating Lines Grade 1 - Excellent Grade 2 - Good Grade 3 - Fair Grade 4 - Poor Grade 5 - Very Poor Grade 6 - Nonagricultural Not rated Soil Rating Points Grade 1 - Excellent Grade 2 - Good Grade 3 - Fair Grade 4 - Poor Grade 5 - Very Poor Grade 6 - Nonagricultural Not rated Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: Web Mercator (EPSG:3857) Maps from the are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Antelope Valley Area, California Survey Area Data: Version 7, Sep 9, 2014 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: May 8, 2010 Oct 29, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Page 2 of 4

California Revised Storie Index (CA) Antelope Valley Area, California Del Sur Solar Site California Revised Storie Index (CA) California Revised Storie Index (CA) Summary by Map Unit Antelope Valley Area, California (CA675) Map unit symbol Map unit name Rating Component name (percent) Acres in AOI Percent of AOI AcA Adelanto coarse sandy loam, 2 to 5 percent CaA Cajon loamy sand, 0 to 2 percent Grade 1 - Excellent Adelanto (85%) 2.3 0.3% Grade 2 - Good Cajon (85%) 283.6 39.0% DuD Dune land Grade 3 - Fair Dune land (90%) 18.6 2.6% GsA HbA HcA HkA RcB Greenfield sandy loam, 0 to 2 percent Hanford coarse sandy loam, 0 to 2 percent Hanford sandy loam, 0 to 2 percent Hesperia fine sandy loam, 0 to 2 percent Ramona coarse sandy loam, 2 to 5 percent RfB Ramona loam, 2 to 5 percent Grade 1 - Excellent Greenfield (85%) 327.3 45.0% Grade 1 - Excellent Hanford (85%) 24.2 3.3% Grade 1 - Excellent Hanford (85%) 19.2 2.6% Grade 1 - Excellent Hesperia (85%) 3.8 0.5% Grade 1 - Excellent Ramona (85%) 5.4 0.7% Grade 1 - Excellent Ramona (85%) 43.6 6.0% Totals for Area of Interest 728.0 100.0% Page 3 of 4

California Revised Storie Index (CA) Antelope Valley Area, California Del Sur Solar Site Description The Storie Index is a soil rating based on soil properties that govern a soil's potential for cultivated agriculture in California. The Storie Index assesses the productivity of a soil from the following four characteristics: Factor A, degree of soil profile development; factor B, texture of the surface layer; factor C, slope; and factor X, manageable features, including drainage, microrelief, fertility, acidity, erosion, and salt content. A score ranging from 0 to 100 is determined for each factor, and the scores are then multiplied together to derive an index rating. For simplification, Storie Index ratings have been combined into six grade classes as follows: Grade 1 (excellent), 81 to 100; grade 2 (good), 61 to 80; grade 3 (fair), 41 to 60; grade 4 (poor), 21 to 40; grade 5 (very poor), 11 to 20; and grade 6 (nonagricultural), 10 or less. The components listed for each map unit in the accompanying Summary by Map Unit table in or the Aggregation Report in Soil Data Viewer are determined by the aggregation method chosen. An aggregated rating class is shown for each map unit. The components listed for each map unit are only those that have the same rating class as the one shown for the map unit. The percent composition of each component in a particular map unit is given to help the user better understand the extent to which the rating applies to the map unit. Other components with different ratings may occur in each map unit. The ratings for all components, regardless the aggregated rating of the map unit, can be viewed by generating the equivalent report from the Soil Reports tab in or from the Soil Data Mart site. Onsite investigation may be needed to validate these interpretations and to confirm the identity of the soil on a given site. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Lower Page 4 of 4

118 19' 25'' W Farmland Classification Antelope Valley Area, California (Del Sur Solar Site) 118 17' 28'' W 378900 379200 379500 379800 380100 380400 380700 381000 381300 381600 34 44' 3'' N 34 43' 0'' N 3842500 3842800 3843100 3843400 3843700 3844000 3844300 3842500 3842800 3843100 3843400 3843700 3844000 3844300 34 44' 3'' N 34 43' 0'' N 378900 379200 379500 379800 380100 380400 380700 381000 381300 381600 118 19' 25'' W N Map Scale: 1:13,600 if printed on A landscape (11" x 8.5") sheet. Meters 0 200 400 800 1200 Feet 0 500 1000 2000 3000 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 11N WGS84 118 17' 28'' W Page 1 of 4

Farmland Classification Antelope Valley Area, California (Del Sur Solar Site) MAP LEGEND Area of Interest (AOI) Soils Area of Interest (AOI) Soil Rating Polygons Not prime farmland All areas are prime farmland drained protected from flooding or not frequently flooded during the growing season irrigated drained and either protected from flooding or not frequently flooded during the growing season irrigated and drained irrigated and either protected from flooding or not frequently flooded during the growing season Soil Rating Lines subsoiled, completely removing the root inhibiting soil layer irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 irrigated and reclaimed of excess salts and sodium Farmland of statewide importance Farmland of local importance Farmland of unique importance Not prime farmland All areas are prime farmland drained protected from flooding or not frequently flooded during the growing season irrigated drained and either protected from flooding or not frequently flooded during the growing season irrigated and drained irrigated and either protected from flooding or not frequently flooded during the growing season subsoiled, completely removing the root inhibiting soil layer irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 irrigated and reclaimed of excess salts and sodium Farmland of statewide importance Farmland of local importance Soil Rating Points Farmland of unique importance Not prime farmland All areas are prime farmland drained protected from flooding or not frequently flooded during the growing season irrigated drained and either protected from flooding or not frequently flooded during the growing season Water Features irrigated and drained irrigated and either protected from flooding or not frequently flooded during the growing season subsoiled, completely removing the root inhibiting soil layer irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 irrigated and reclaimed of excess salts and sodium Farmland of statewide importance Farmland of local importance Farmland of unique importance Page 2 of 4

Farmland Classification Antelope Valley Area, California (Del Sur Solar Site) MAP INFORMATION Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: Web Mercator (EPSG:3857) Maps from the are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Antelope Valley Area, California Survey Area Data: Version 7, Sep 9, 2014 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: May 8, 2010 Oct 29, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Page 3 of 4

Farmland Classification Antelope Valley Area, California Del Sur Solar Site Farmland Classification AcA Farmland Classification Summary by Map Unit Antelope Valley Area, California (CA675) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI Adelanto coarse sandy loam, 2 to 5 percent CaA Cajon loamy sand, 0 to 2 percent irrigated irrigated 2.3 0.3% 283.6 39.0% DuD Dune land Not prime farmland 18.6 2.6% GsA Greenfield sandy loam, 0 to 2 percent HbA HcA HkA RcB Hanford coarse sandy loam, 0 to 2 percent Hanford sandy loam, 0 to 2 percent Hesperia fine sandy loam, 0 to 2 percent Ramona coarse sandy loam, 2 to 5 percent RfB Ramona loam, 2 to 5 percent irrigated irrigated irrigated irrigated irrigated irrigated 327.3 45.0% 24.2 3.3% 19.2 2.6% 3.8 0.5% 5.4 0.7% 43.6 6.0% Totals for Area of Interest 728.0 100.0% Description Farmland classification identifies map units as prime farmland, farmland of statewide importance, farmland of local importance, or unique farmland. It identifies the location and extent of the soils that are best suited to food, feed, fiber, forage, and oilseed crops. NRCS policy and procedures on prime and unique farmlands are published in the "Federal Register," Vol. 43, No. 21, January 31, 1978. Rating Options Aggregation Method: No Aggregation Necessary Tie-break Rule: Lower Page 4 of 4