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Home My WebLink About20040926.tiff Hydric Soils List Weld County,Colorado,Southern Part Hydric Soils Criteria Map Symbol and Component Hydric Local Landform Hydric Meets Meets Meets Acres Map Unit Name Criteria Saturation Flooding Ponding Code Criteria Criteria Criteria 17: Colby loam,5 to 9 percent Colby No --- --- --- --- --- 3,537 slopes 42: Nunn clay loam, 1.to 3 Nunn No --- --- --- --- --- 16,099 percent slopes 59: Shingle loam, 3 to 9 percent Shingle No --- --- --- --- --- 986 slopes 83: Wiley-colby complex,3 to 5 Wiley No --- --- --- --- --- 3,778 percent slopes Colby No --- --- --- --- --- 2,061 USDA Natural Resources alConservation Service Distribution Generation Date:2/26/2002 2004-0926 Page 1 of 1 Non Technical Soil Description(s) (NASIS derived) Soil Survey Area C0618 Weld County, Colorado, Southern Part Mapunit 17 COLBY LOAM, 5 TO 9 PERCENT SLOPES Soil Component Name COLBY 90%of the mapunit Slope range(%): 5 to 9 Depth class: Very deep Drainage class: Well drained Permeability: Moderate Available water capacity class: High Average total available water in top five feet(in.): 10.6 Land capability subclass,non-irrigated: 6e Land capability subclass,irrigated: 6e Ecological Site: LOAMY SLOPES Runoff class: Medium Depth to seasonal high water table: NA- Flooding frequency: None Other restrictions(in): NA - Horizon Information Depth(in) Textures pH range Sodium Salinity(mmhos/cm) HI 0 - 7 7.4 - 8.4 NA - NA- L loam H2 7 - 60 7.4 - 8.4 NA - NA- SIL silt loam pH classes: 3.5-4.4 extremely acid;4.5-5.0 very strongly acid;5.1-5.5 strongly acid;5.6-6.0 moderately acid; 6.1-6.5 slightly acid;6.6-7.3 neutral;7.4-7.8 slightly alkaline;7.9-8.4 moderately alkaline; 8.5-9.0 strongly alkaline; >9.0 very strongly alkaline. Salinity classes(if applicable): 0-2 non saline;2-4 very slightly saline;4-8 slightly saline; 8-16 moderately saline; >=16 saline. Friday,August 22,2003 Non Technical Soil Description(NASIS derived) Page 1 of 5 Mapunit 42 NUNN CLAY LOAM, 1 TO 3 PERCENT SLOPES Soil Component Name NUNN 85%of the mapunit Slope range(%): I to 3 Depth class: Very deep Drainage class: Well drained Permeability: Slow Available water capacity class: High Average total available water in top five feet(in.): 9.1 Land capability subclass,non-irrigated: 4c Land capability subclass,irrigated: 2e Ecological Site: CLAYEY PLAINS Runoff class: High Depth to seasonal high water table: NA- Flooding frequency: None Other restrictions(in): NA Horizon Information Depth(in) Textures pH range Sodium Salinity(mmhos/cm) HI 0 - 9 6.1 - 7.8 NA - NA- CL clay loam H2 9 - 29 6.1 - 8.4 NA - NA- CL clay loam C clay H3 29 - 60 7.4 - 8.4 NA - NA- SCL sandy clay loam FSL fine sandy loam SL sandy loam pH classes:3.5-4.4 extremely acid;4.5-5.0 very strongly acid;5.1-5.5 strongly acid;5.6-6.0 moderately acid; 6.1-6.5 slightly acid;6.6-7.3 neutral;7.4-7.8 slightly alkaline;7.9-8.4 moderately alkaline; 8.5-9.0 strongly alkaline; >9.0 very strongly alkaline. Salinity classes(if applicable): 0-2 non saline;2-4 very slightly saline;4-8 slightly saline;8-16 moderately saline; >=16 saline. Friday,August 22,2003 Non Technical Soil Description(NASIS derived) Page 2 of 5 Mapunit 59 SHINGLE LOAM, 3 TO 9 PERCENT SLOPES Soil Component Name SHINGLE 85%of the mapunit Slope range(%): 3 to 5 Depth class: Shallow Drainage class: Well drained Permeability: Slow Available water capacity class: Low Average total available water in top five feet(in.): 3.3 Land capability subclass,non-irrigated: 6s Land capability subclass,irrigated: 6s Ecological Site: SHALY PLAINS Runoff class: High Depth to seasonal high water table: NA- Flooding frequency: None Other restrictions(in): Bedrock(paralithic) 10 - 20 Horizon Information Depth(in) Textures pH range Sodium Salinity(mmhos/cm) HI 0 - 6 7.4 - 8.4 NA - NA- L loam H2 6 - 18 7.4 - 8.4 NA - NA- CL clay loam H3 18 - 22 NA - NA - NA- UWB unweathered bedrock pH classes:3.5-4.4 extremely acid;4.5-5.0 very strongly acid;5.1-5.5 strongly acid;5.6-6.0 moderately acid; 6.1-6.5 slightly acid;6.6-7.3 neutral;7.4-7.8 slightly alkaline;7.9-8.4 moderately alkaline; 8.5-9.0 strongly alkaline; >9.0 very strongly alkaline. Salinity classes(if applicable): 0-2 non saline;2-4 very slightly saline;4-8 slightly saline; 8-16 moderately saline; >=16 saline. Friday,August 22,2003 Non Technical Soil Description(NASIS derived) Page 3 of 5 Mapunit 83 WILEY-COLBY COMPLEX, 3 TO 5 PERCENT SLOPES Soil Component Name WILEY 55%of the mapunit Slope range(%): 3 to 5 Depth class: Very deep Drainage class: Well drained Permeability: Moderate Available water capacity class: High Average total available water in top five feet(in.): 12.6 Land capability subclass,non-irrigated: 4e Land capability subclass, irrigated: 3e Ecological Site: LOAMY PLAINS Runoff class: Low Depth to seasonal high water table: NA- Flooding frequency: None Other restrictions(in): NA - Horizon Information Depth(in) Textures pH range Sodium Salinity(mmhos/cm) HI 0 - II 7.4 - 8.4 NA - NA- SIL silt loam H2 11 - 60 7.9 - 8.4 NA - NA- SICL silty clay loam SIL silt loam CL clay loam H3 60 - 64 7.9 - 9 NA - NA- SIL silt loam i—. SICL silty clay loam L loam pH classes: 3.5-4.4 extremely acid;4.5-5.0 very strongly acid;5.1-5.5 strongly acid;5.6-6.0 moderately acid; 6.1-6.5 slightly acid;6.6-7.3 neutral;7.4-7.8 slightly alkaline;7.9-8.4 moderately alkaline; 8.5-9.0 strongly alkaline; >9.0 very strongly alkaline. Salinity classes(if applicable): 0-2 non saline;2-4 very slightly saline;4-8 slightly saline;8-16 moderately saline; >=16 saline. Friday,August 22,2003 Non Technical Soil Description(NASIS derived) Page 4 of 5 Soil Component Name COLBY 30%of the mapunit Slope range(%): 3 to 5 Depth class: Very deep Drainage class: Well drained Permeability: Moderate Available water capacity class: High Average total available water in top five feet(in.): 10.6 Land capability subclass,non-irrigated: 4e Land capability subclass,irrigated: 3e Ecological Site: LOAMY PLAINS Runoff class: Low Depth to seasonal high water table: NA- Flooding frequency: None Other restrictions(in): NA - Horizon Information Depth(in) Textures pH range Sodium Salinity(mmhos/cm) HI 0 - 7 7.4 - 8.4 NA - NA- L loam H2 7 - 60 7.4 - 8.4 NA - NA- SIL silt loam pH classes:3.5-4.4 extremely acid;4.5-5.0 very strongly acid;5.1-5.5 strongly acid;5.6-6.0 moderately acid; 6.1-6.5 slightly acid;6.6-7.3 neutral;7.4-7.8 slightly alkaline;7.9-8.4 moderately alkaline; 8.5-9.0 strongly alkaline; >9.0 very strongly alkaline. Salinity classes(if applicable):0-2 non saline;2-4 very slightly saline;4-8 slightly saline; 8-16 moderately saline; >=16 saline. Friday,August 22,2003 Non Technical Soil Description(NASIS derived) Page 5 of 5 ) ) ) Table K2. - Soil Features Weld County,Colorado,Southern Part Absence of an entry indicates that the feature is not a concern or that data were not estimated. Map Symbol Restrictive Layer Subsidence Potential Risk of Corrosion and Soil Name for Frost Depth Action Uncoated Concrete Kind to Top Thickness Hardness Initial Total Steel In In In In 17: Colby ___ --- ___ --- 0 --- Low Low Low ) 42: Nunn --- --- --- --- 0 --- Moderate High Low 59: Shingle Bedrock(paralithic) 10-20 --- -- 0 --- Low Moderate Low 83: Wiley --- 0 --- Low High Low Colby -- --- --- --- 0 --- Low Low Low USDA Natural Resources Conservation Service Distribution Generation Date:2/26/2002 Page 1 of 1 ) ) Table H. - Engineering Index Properties Weld County,Colorado, Southern Part Absence of an entry indicates that the data were not estimated. Classification Fragments Percent Passing Sieve Number Map Symbol Liquid Plasticity and Soil Name Depth USDA Texture >10 3-10 Limit Index Unified AASHTO Inches Inches 4 10 40 200 In Pct Pct Pct 17: Colby 0-7 Loam CL A-4 0 0 100 100 85-95 60-75 25-30 5-10 l CL-ML 7-60 Silt Loam ML A-4 0 0 100 100 90-100 80-90 30-35 5-10 42: Nunn 0-9 Clay Loam CL A-6 0 0 100 100 90-100 70-80 3040 10-20 9-29 Clay CH A-7 0 0-5 95-100 90-100 85-95 65-75 40-60 25-40 Clay Loam CL 29-60 Sandy Loam SC A-2 0 0-5 80-100 75-100 50-80 25-50 15-25 NP-10 Fine Sandy Loam SC-SM A4 Sandy Clay Loam SM 59: Shingle 0-6 Loam CL A-4 0 0 100 100 85-95 60-75 25-30 5-10 CL-ML 6-18 Clay Loam CL A-6 0 0 100 100 90-100 70-80 30-40 10-20 18-22 Unweathered Bedrock --- --- --- --- --- --- --- --- --- --- 83: ) Wiley 0-11 Silt Loam ML A-4 0 0 100 100 90-100 70-90 30-35 5-10 11-60 Silt Loam CL A-6 0 0 100 100 90-100 70-95 25-35 10-20 Silty Clay Loam Clay Loam 60-64 Silty Clay Loam ML A-4 0 0 100 100 90-100 80-95 30-45 5-15 Silt Loam A-6 Loam Colby 0-7 Loam CL A-4 0 0 100 100 85-95 60-75 25-30 5-10 CL-ML 7-60 Silt Loam ML A-4 0 0 100 100 90-100 80-90 30-35 5-10 USDA Natural Resources all Conservation Service Distribution Generation Date:2/26/2002 Page 1 of 1 ro 11 uJ g "j/0t v.4 'I. s w `\ u ;11).-,V*. r spy f>..d`"� it dx e ' F yam si `•,` Fr y ! • �¢ : - < S ,Aa' ��may._ig'�L;. 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