1728 100TH ST SW 2024-01-04 - Laserfiche WebLink

I Custom Soil Resource Report ' Snohomish County Area, Washington 5—Alderwood-Urban land complex, 2 to 8 percent slopes ' Map Unit Setting National map unit symbol: 2hz9 Elevation: 50 to 800 feet Mean annual precipitation: 25 to 60 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 180 to 220 days ' Farmland classification: Not prime farmland Map Unit Composition Alderwood and similar soils: 60 percent Urban land: 25 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Alderwood Setting Landform: Till plains ' Parent material: Basal till Typical profile H1 - 0 to 7 inches: gravelly ashy sandy loam ' H2 - 7 to 35 inches. very gravelly ashy sandy loam H3 - 35 to 60 inches: gravelly sandy loam Properties and qualities ' Slope: 2 to 8 percent Depth to restrictive feature. 20 to 40 inches to densic material Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: About 18 to 36 inches Frequency of flooding- None ' Frequency of ponding: None Available water supply, 0 to 60 inches: Low (about 3.0 inches) Interpretive groups ' Land capability classification (irrigated). None specified Land capability classification (nonimgated): 4s Hydrologic Soil Group: B Ecological site: F002XA004WA - Puget Lowlands Forest Forage suitability group. Limited Depth Soils (G002XN302WA) Other vegetative classification: Limited Depth Soils (G002XN302WA) Hydric soil rating. No Minor Components Norma, undrained Percent of map unit. 5 percent ' Landform: Depressions Other vegetative classification: Wet Soils (G002XN102WA) Hydric soil rating: Yes ' 13