Table 18.--Construction Materials (Part 1) Pacific Southwest MLRA Office Interpretations The information in this table indicates the dominant soil condition but does not eliminate the need for onsite investigation. The numbers in the value columns range from 0.00 to 0.99. The closer the value is to 0, the greater the potential limitation. Values of 0 are absolute limitations based on the soil property criteria used to develop the interpretation. Values closer to 1.0 have less of a limitation. Limiting features with values = 1 have absolutely no limitation and are not shown in this report. Rating classes are determined by the most limiting value. Fine earth fractions and fragment limiting features are reported on a weight basis. A brief rating criteria summary and abbreviations used in the ratings are listed on the last page of this report. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 100: | | | | | | | Capay, clay loam------------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 101: | | | | | | | Capay, silty clay-----------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | SAR 4 to 13 |0.6 | | due to fines or thin layer | | | | | | | | | | | | 102, 103: | | | | | | | Capay, clay loam------------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 104, 105, 106: | | | | | | | Willows, silty clay, frequently | | | | | | | flooded--------------------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | EC > 8 mmhos |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | SAR > 13 |0.0 | | due to fines or thin layer | | | | Clay > 40% |0.0 107, 108, 109: | | | | | | | Scribner, silt loam, occasionally | | | | | | | flooded--------------------------| 80 |Poor source | |Poor source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Wetness from 1 to 3' |0.1 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 110: | | | | | | | Hustabel, sandy loam--------------| 80 |Poor source | |Fair source | |Fair source | | | Bottom layer not a source |0.0 | Thickest layer not a source |0.0 | SAR 4 to 13 |1.0 | | Thickest layer not a source |0.0 | Bottom layer is a possible source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 112: | | | | | | | Westfan, loam---------------------| 80 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 113: | | | | | | | Westfan, loam, sodic--------------| 85 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 114: | | | | | | | Westfan, clay loam----------------| 80 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 115, 116, 117, 118: | | | | | | | Clear Lake, clay------------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | SAR 4 to 13 |0.9 | | due to fines or thin layer | | | | | | | | | | | | 124, 125, 126: | | | | | | | Moonbend, silt loam---------------| 80 |Poor source | |Poor source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay 27 to 40% |0.6 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 127: | | | | | | | Mallard, clay loam----------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 128: | | | | | | | Mallard, loam---------------------| 85 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 129: | | | | | | | Mallard, clay loam, occasionally | | | | | | | flooded--------------------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 130, 131, 133: | | | | | | | Corbiere, silt loam---------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | SAR 4 to 13 |0.0 | | due to fines or thin layer | | | | Wetness from 1 to 3' |0.5 | | | | | | | 136: | | | | | | | Colusa, loam----------------------| 85 |Poor source | |Fair source | |Poor source | | | Bottom layer not a source |0.0 | Thickest layer not a source |0.0 | EC > 8 mmhos |0.0 | | Thickest layer not a source |0.0 | Bottom layer is a possible source |0.0 | SAR > 13 |0.0 | | due to fines or thin layer | | | | | | | | | | | | 141: | | | | | | | Myers, clay-----------------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 144: | | | | | | | Hillgate, clay loam---------------| 85 |Poor source | |Poor source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay 27 to 40% |0.8 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 145, 147: | | | | | | | Hillgate, loam--------------------| 90 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 150: | | | | | | | Arbuckle, sandy loam--------------| 85 |Poor source | |Poor source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.1 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Hard to reclaim |0.2 | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 151: | | | | | | | Arbuckle, sandy loam--------------| 50 |Poor source | |Poor source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.1 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Hard to reclaim |0.2 | | due to fines or thin layer | | | | | | | | | | | | Hillgate, loam--------------------| 40 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 152: | | | | | | | Arbuckle, gravelly loam-----------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Hard to reclaim |0.7 | | due to fines or thin layer | | | | Clay 27 to 40% |0.8 | | | | | | | 155: | | | | | | | Alcapay, clay---------------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | SAR 4 to 13 |0.4 | | due to fines or thin layer | | | | | | | | | | | | 160: | | | | | | | Grandbend, loam-------------------| 80 |Poor source | |Fair source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Wetness from 1 to 3' |0.9 | | Thickest layer not a source |0.0 | Thickest layer possible source |0.1 | | | | due to fines or thin layer | | | | | | | | | | | | 170: | | | | | | | Vina, loam, frequently flooded----| 80 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 171: | | | | | | | Vina, loam------------------------| 85 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 172: | | | | | | | Vina, fine sandy loam, frequently | | | | | | | flooded--------------------------| 80 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 174: | | | | | | | Vina, loam, occasionally flooded--| 85 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 175: | | | | | | | Tujunga, loam, overwash, | | | | | | | frequently flooded---------------| 85 |Poor source | |Fair source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer is a possible source |0.2 | Sand fractions 75-85% |0.2 | | Thickest layer not a source |0.0 | Thickest layer possible source |0.2 | | | | due to fines or thin layer | | | | | | | | | | | | 176: | | | | | | | Columbia, fine sandy loam, | | | | | | | frequently flooded---------------| 80 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 177: | | | | | | | Holillipah, loamy sand, channeled-| 80 |Poor source | |Fair source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer is a possible source |0.1 | | | | Thickest layer not a source |0.0 | Thickest layer possible source |0.1 | | | | due to fines or thin layer | | | | | | | | | | | | 185: | | | | | | | Riverwash-------------------------| 95 |Poor source | |Fair source | |Poor source | | | Bottom layer not a source |0.0 | Thickest layer possible source |0.0 | Wetness > 3' depth |0.0 | | Thickest layer not a source |0.0 | Bottom layer is a possible source |0.1 | Rock fragment content |1.0 | | due to fines or thin layer | | | | | | | | | | | | 187: | | | | | | | Westfan, loam, occasionally | | | | | | | flooded--------------------------| 85 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 188: | | | | | | | Westfan, loam, clay substratum----| 80 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 189: | | | | | | | Arand, very gravelly sandy loam---| 85 |Poor source | |Fair source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer possible source |0.0 | Hard to reclaim |0.0 | | due to fines or thin layer | | | | | | | | | | | | 190: | | | | | | | Arand, very gravelly loam---------| 85 |Fair source | |Poor source | |Poor source | | | Thickest layer possible source|0.6 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Bottom layer possible source |0.6 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | | | | | | 193: | | | | | | | Westfan, gravelly loam------------| 80 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Hard to reclaim |0.9 | | due to fines or thin layer | | | | | | | | | | | | 200: | | | | | | | Clear Lake, clay, occasionally | 90 |Poor source | |Poor source | |Poor source | flooded--------------------------| | | | | | | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | SAR 4 to 13 |0.9 | | due to fines or thin layer | | | | | | | | | | | | 204, 205, 206: | | | | | | | Capay, clay-----------------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 210, 211: | | | | | | | Corval,---------------------------| 85 |Poor source | |Poor source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay 27 to 40% |1.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 212: | | | | | | | Ayar, clay------------------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope 8 to 12% |0.8 | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 213: | | | | | | | Ayar, clay------------------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | | | | | | | | | 215: | | | | | | | Altamont, silty clay--------------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | | Sehorn, silty clay----------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 216: | | | | | | | Altamont, silty clay--------------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Hard to reclaim |0.0 | | due to fines or thin layer | | | | Slope 12 to 15% |0.4 | | | | | | | Sehorn, silty clay----------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope 12 to 15% |0.4 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 218: | | | | | | | Sehorn, silty clay----------------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Altamont, silty clay--------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | | 220: | | | | | | | Altamont, silty clay--------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 221: | | | | | | | Altamont, silty clay--------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Hard to reclaim |0.0 | | due to fines or thin layer | | | | Slope 12 to 15% |0.4 | | | | | | | 230: | | | | | | | Corning, clay loam----------------| 90 |Fair source | |Poor source | |Fair source | | | Thickest layer not a source |0.0 | Bottom layer not a source |0.0 | Clay 27 to 40% |0.8 | | due to fines or thin layer | | | | | | | Bottom layer possible source |0.1 | Thickest layer not a source |0.0 | | | | | | | | | 232: | | | | | | | Maywood, gravelly loam, | | | | | | | occasionally flooded-------------| 85 |Poor source | |Fair source | |Good source | | | Bottom layer not a source |0.0 | Thickest layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Bottom layer is a possible source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 233: | | | | | | | Eastpark, clay loam---------------| 95 |Fair source | |Poor source | |Poor source | | | Thickest layer possible source|0.3 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Bottom layer possible source |0.5 | Thickest layer not a source |0.0 | Clay 27 to 40% |1.0 | | | | | | | 241: | | | | | | | Contra Costa, loam----------------| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Altamont, silty clay--------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | | 253: | | | | | | | Millsholm, loam-------------------| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.5 | | due to fines or thin layer | | | | Slope 8 to 12% |0.8 | | | | | | | Altamont, silty clay--------------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Hard to reclaim |0.0 | | due to fines or thin layer | | | | Slope 8 to 12% |0.8 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Rock outcrop----------------------| 15 |Not Rated | |Not Rated | |Not rated | | | | | | | | | | | | | | | 255: | | | | | | | Millsholm, loam-------------------| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | Rock outcrop----------------------| 35 |Not Rated | |Not Rated | |Not rated | | | | | | | | | | | | | | | 257: | | | | | | | Millsholm, loam-------------------| 50 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.5 | | due to fines or thin layer | | | | | | | | | | | | Capay, clay-----------------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 261: | | | | | | | Millsholm, loam-------------------| 60 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | Altamont, silty clay--------------| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | | 270: | | | | | | | Balcom, silt loam-----------------| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock 20 to 40" |0.7 | | due to fines or thin layer | | | | Calcium carbonates 15-40% |0.9 | | | | | | Rock fragment content |1.0 | | | | | | | Ayar, clay------------------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 271: | | | | | | | Balcom, silt loam-----------------| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock 20 to 40" |0.7 | | due to fines or thin layer | | | | Calcium carbonates 15-40% |0.9 | | | | | | Rock fragment content |1.0 | | | | | | | Ayar, clay------------------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | | | | | | | | | 275: | | | | | | | Goldeagle, clay loam--------------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | | | | | | | | | Positas, gravelly sandy loam------| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Hard to reclaim |0.0 | | | | | | Rock fragment content |0.5 | | | | | | | Balcom, silt loam-----------------| 15 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock 20 to 40" |0.7 | | due to fines or thin layer | | | | Calcium carbonates 15-40% |0.9 | | | | | | Rock fragment content |1.0 | | | | | | | 276: | | | | | | | Positas, gravelly sandy loam------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Hard to reclaim |0.0 | | | | | | Rock fragment content |0.5 | | | | | | | 280: | | | | | | | Skyhigh, gravelly clay loam-------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Millsholm, loam-------------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | 300: | | | | | | | Contra Costa, loam----------------| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Millsholm, loam-------------------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | 305: | | | | | | | Contra Costa, loam----------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 311: | | | | | | | Contra Costa, loam----------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope 12 to 15% |0.4 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 312, 313: | | | | | | | Saltcanyon, loam------------------| 90 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 315: | | | | | | | Mallard, clay loam----------------| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 316: | | | | | | | Hillgate, loam--------------------| 90 |Poor source | |Poor source | |Good source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | | | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 320: | | | | | | | Millsholm, loam-------------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | 329: | | | | | | | Sehorn, silty clay----------------| 40 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | | | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Millsholm, loam-------------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | | | | | | Altamont, silty clay--------------| 15 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | | 330: | | | | | | | Millsholm, loam-------------------| 60 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | Contra Costa, loam----------------| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 331: | | | | | | | Sehorn, silty clay----------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Millsholm, loam-------------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Rock outcrop----------------------| 20 |Not Rated | |Not Rated | |Not rated | | | | | | | | | | | | | | | 332: | | | | | | | Millsholm, loam-------------------| 50 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | Rock outcrop----------------------| 40 |Not Rated | |Not Rated | |Not rated | | | | | | | | 334: | | | | | | | Millsholm, loam-------------------| 70 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | Contra Costa, loam----------------| 15 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | | | | | | 337: | | | | | | | Millsholm, loam-------------------| 50 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.5 | | due to fines or thin layer | | | | Slope 8 to 12% |0.8 | | | | | | | Saltcanyon, loam------------------| 35 |Poor source | |Poor source | |Fair source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope 8 to 12% |1.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | | | | due to fines or thin layer | | | | | | | | | | | | 345: | | | | | | | Skyhigh, gravelly clay loam-------| 40 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Sleeper, clay loam----------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Millsholm, loam-------------------| 15 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | 346: | | | | | | | Skyhigh, gravelly clay loam-------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Millsholm, loam-------------------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | Sleeper, clay loam----------------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | | | | | | | | | 347, 348: | | | | | | | Boar, loam------------------------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | | | | | | | | | Sleeper, clay loam----------------| 40 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | | | | | | | | | 350: | | | | | | | Haploxererts----------------------| 80 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Hard to reclaim |0.1 | | | | | | Rock fragment content |0.9 | | | | | | | 355: | | | | | | | Venado, clay----------------------| 80 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Wetness from 1 to 3' |0.5 | | due to fines or thin layer | | | | | | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 360: | | | | | | | Bearvalley, gravelly sandy loam---| 85 |Fair source | |Poor source | |Poor source | | | Bottom layer possible source |0.2 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer possible source|0.2 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | | | | | | 365, 366: | | | | | | | Leesville, clay loam--------------| 85 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.7 | | due to fines or thin layer | | | | | | | | | | | | 370: | | | | | | | Livermore, very gravelly loam-----| 90 |Fair source | |Poor source | |Poor source | | | Bottom layer possible source |0.2 | Bottom layer not a source |0.0 | Hard to reclaim |0.0 | | Thickest layer possible source|0.2 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | | | | | | 371: | | | | | | | Buttes, gravelly sandy loam-------| 50 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Millsholm, loam-------------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.5 | | | | | | | 519: | | | | | | | Stonyford, gravelly loam----------| 50 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Slope 8 to 12% |0.8 | | | | | | Clay 27 to 40% |1.0 | | | | | | | Guenoc, loam----------------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock 20 to 40" |0.5 | | due to fines or thin layer | | | | Slope 8 to 12% |0.8 | | | | | | Rock fragment content |0.9 | | | | | | | 520, 521: | | | | | | | Stonyford, gravelly loam----------| 65 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | Clay 27 to 40% |1.0 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Guenoc, loam----------------------| 15 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | Rock fragment content |0.9 | | | | | | | Arand, frequently flooded---------| 65 |Poor source | |Fair source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer possible source |0.0 | Hard to reclaim |0.0 | | due to fines or thin layer | | | | | | | | | | | | Riverwash-------------------------| 25 |Poor source | |Fair source | |Poor source | | | Bottom layer not a source |0.0 | Thickest layer possible source |0.0 | Wetness > 3' depth |0.0 | | Thickest layer not a source |0.0 | Bottom layer is a possible source |0.1 | Rock fragment content |1.0 | | due to fines or thin layer | | | | | | | | | | | | 526: | | | | | | | Etsel, gravelly sandy loam--------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Maymen, sandy loam----------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Marpa, very gravelly sandy loam---| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | Clay 27 to 40% |1.0 | | | | | | | 527: | | | | | | | Maymen, sandy loam----------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Etsel, gravelly sandy loam--------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Speaker, gravelly loam------------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.3 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 528: | | | | | | | Maymen, sandy loam----------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Etsel, gravelly sandy loam--------| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Snook, gravelly sandy loam--------| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | 529: | | | | | | | Maymen, sandy loam----------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Etsel, gravelly sandy loam--------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | | Mayacama, gravelly coarse sandy | 20 |Poor source | |Poor source | |Poor source | loam-----------------------------| | | | | | | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 542: | | | | | | | Okiota, loam----------------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | Rock fragment content |0.9 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Dubakella, gravelly clay loam-----| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Clay > 40% |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Henneke, sandy loam---------------| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | Rock fragment content |0.0 | | | | | | | 545: | | | | | | | Henneke, sandy loam---------------| 40 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | Rock fragment content |0.0 | | | | | | | Montara, gravelly sandy loam------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | | Rock outcrop----------------------| 15 |Not Rated | |Not Rated | |Not rated | | | | | | | | 548, 549: | | | | | | | Henneke, sandy loam---------------| 45 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay > 40% |0.0 | | due to fines or thin layer | | | | Slope > 15% |0.0 | | | | | | Rock fragment content |0.0 | | | | | | | Okiota, loam----------------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock < 20" |0.0 | | | | | | Rock fragment content |0.9 | | | | | | | 557: | | | | | | | Neuns, very gravelly loam---------| 35 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer possible source|0.1 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Bamtush, very gravelly loam-------| 30 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer possible source|0.2 | Thickest layer not a source |0.0 | Hard to reclaim |0.0 | | | | | | Rock fragment content |0.0 | | | | | | | Speaker, gravelly loam------------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.3 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 564: | | | | | | | Fouts, gravelly loam--------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Clay > 40% |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Yorkville, clay loam--------------| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Clay > 40% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | | | | | | | | | Squawrock, gravelly loam----------| 15 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | Clay 27 to 40% |0.8 | | | | | | | 570: | | | | | | | Endoaquolls, frequently ponded----| 90 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Wetness > 3' depth |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Clay 27 to 40% |0.7 | | due to fines or thin layer | | | | Hard to reclaim |1.0 | | | | | | | 590: | | | | | | | Neuns, very gravelly loam---------| 35 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer possible source|0.1 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Marpa, very gravelly sandy loam---| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | Clay 27 to 40% |1.0 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Goulding, gravelly loam-----------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | 591: | | | | | | | Neuns, very gravelly loam---------| 35 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer possible source|0.1 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Sheetiron, gravelly sandy loam----| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Goulding, gravelly loam-----------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | 592: | | | | | | | Neuns, very gravelly loam---------| 35 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer possible source|0.1 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Goulding, gravelly loam-----------| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | Sheetiron, gravelly sandy loam----| 25 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 596: | | | | | | | Yollabolly, very gravelly loam----| 40 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | Rock outcrop----------------------| 35 |Not Rated | |Not Rated | |Not rated | | | | | | | | Freezeout, very gravelly sandy | | | | | | | loam-----------------------------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 597: | | | | | | | Yollabolly, very gravelly loam----| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | Freezeout, very gravelly sandy | | | | | | | loam-----------------------------| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | 599: | | | | | | | Freezeout, very gravelly sandy | | | | | | | loam-----------------------------| 55 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Yollabolly, very gravelly loam----| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | 600: | | | | | | | Freezeout, very gravelly sandy | | | | | | | loam-----------------------------| 50 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Yollabolly, very gravelly loam----| 35 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | Table 18.--Construction Materials (Part 1)--Continued. ________________________________________________________________________________________________________________________________________________________________ | | | | Map symbol |Pct | Potential source of | Potential source of | Potential source of and soil name | of | gravel | sand | topsoil |map | | | |unit| | | | |_______________________________________|__________________________________________|___________________________________ | | Rating class and |Value| Rating class and |Value| Rating class and |Value | | limiting features | | limiting features | | limiting features | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ | | | | | | | 610: | | | | | | | Neuns, very gravelly loam---------| 40 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Rock fragment content |0.0 | | Thickest layer possible source|0.1 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | | Bamtush, very gravelly loam-------| 25 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer possible source|0.2 | Thickest layer not a source |0.0 | Hard to reclaim |0.0 | | | | | | Rock fragment content |0.0 | | | | | | | Goulding, gravelly loam-----------| 20 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Depth to bedrock < 20" |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Slope > 15% |0.0 | | due to fines or thin layer | | | | Rock fragment content |0.0 | | | | | | | 650, 651: | | | | | | | Bamtush, very gravelly loam-------| 55 |Fair source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer possible source|0.2 | Thickest layer not a source |0.0 | Hard to reclaim |0.0 | | | | | | Rock fragment content |0.0 | | | | | | | Marpa, very gravelly sandy loam---| 30 |Poor source | |Poor source | |Poor source | | | Bottom layer not a source |0.0 | Bottom layer not a source |0.0 | Slope > 15% |0.0 | | Thickest layer not a source |0.0 | Thickest layer not a source |0.0 | Rock fragment content |0.0 | | due to fines or thin layer | | | | Depth to bedrock 20 to 40" |0.5 | | | | | | Clay 27 to 40% |1.0 | | | | | | | ___________________________________|____|_________________________________|_____|____________________________________|_____|_____________________________|_____ The interpretation for gravel source evaluates coarse fragments greater than .2 inches in size in the bottom layer or in the thickest layer of the soil. The interpretation for sand source evaluates the amount of sand and fine gravel in the thickest layer or in the bottom layer of the soil. Organic soil layers with a Unified engineering class for peat (PT) are also evaluated. The interpretation for topsoil source evaluates the following soil properties at various depths: calcium carbonates, clay amount, soil bulk density, sand amount, soil wetness, coarse fragments .2 to 3 inches in size, fragments greater than 3 inches in size, organic matter content (OM), sodium content expressed as the sodium adsorption ratio (SAR), salinity expressed as mmhos/cm of electrical conductivity (EC), depth to bedrock, slope and soil pH.