Soil Properties

Information within this chart was gathered from:

%Sa = %Sand; Estimated from available soil descriptions
%Cl = %Clay; Estimated from available soil descriptions
Field Capacity, Bulk Density, Saturation and Saturated Hydraulic Conductivity; From the Soil Texture Triangle Website
K = Soil permeability; Estimated from soil descriptions and Water in Environmental Planning, Dunne, T. and Leopold, L., 1978
Classification, Yd (Dry Unit Weight), Cs (Soil Cohesion) and Phi (Internal Angle of Friction) Estimated from available soil descriptions using 
Level I Stability Analysis (LISA) Documentation Version 2.0

Soil Type %Sa %Cl Field Capacity (cm3 water / cm3 soil)
Bulk Density

(g/cm3)

Saturation

(cm3 water/cm3 soil)

Sat Hydraulic Conductivity

(cm/hr)

K USC Classification Yd (pcf) Cs (psf)
phi material

hoodsport 75 15 0.19574 1.5166 0.42768 1.3125 0.1 GP medium dense 117-122 288-432 38.7-40.4 65-82%gravel

kilchis 43 10 0.24062 1.5146 0.42842 2.6865 0.05 GM loose 51.5-91 104-200 33.6-43 colluvium(graywacke)

typic udorthents 65 20 0.22467 1.4551 0.45087 0.69911 0.35 SW loose 91.8-112 0 27-36.2 coarse sand with 20% gravel and 4-10% silt

ahl 72 10 0.18347 1.5704 0.40739 2.747 0.05 GP loose 51.5-91 104-200 33.6-43 colluvium

grove 65 12.5 0.20216 1.5241 0.42483 1.8766 0.1 GP medium dense 117-122 288-432 38.7-40.4 65-82%gravel

ellinor 40 10 0.24713 1.5089 0.43059 2.7136 0.25 GM loose 51.5-91 104-200 33.6-43 colluvium(graywacke)

juno 50 45 0.33736 1.3072 0.50669 0.11947 0.2 SW dense to very dense 124-130 0 47.5-55.9 sw-sm w/19% a gravel ,12% silt

hoquiam 45 32.5 0.2975 1.3454 0.49228 0.26045 0.25 MH loose 48.4-107.3 80-300 34.4-39.2 alluvium

schneider 50 15 0.23338 1.4685 0.44581 1.4162 0.1 GP loose 51.5-91 104-200 33.6-43 colluvium

deckerville 35 45 0.37102 1.2784 0.51757 0.15908 0.3 GC dense to very dense 106-118 0-360 33.6-44.7 glacial till(graywacke)

Soil Type	%Sa	%Cl	Field Capacity (cm3 water / cm3 soil)	Bulk Density (g/cm3)	Saturation (cm3 water/cm3 soil)	Sat Hydraulic Conductivity (cm/hr)	K	USC Classification	Yd (pcf)	Cs (psf)	phi	material
hoodsport	75	15	0.19574	1.5166	0.42768	1.3125	0.1	GP medium dense	117-122	288-432	38.7-40.4	65-82%gravel
kilchis	43	10	0.24062	1.5146	0.42842	2.6865	0.05	GM loose	51.5-91	104-200	33.6-43	colluvium(graywacke)
typic udorthents	65	20	0.22467	1.4551	0.45087	0.69911	0.35	SW loose	91.8-112	0	27-36.2	coarse sand with 20% gravel and 4-10% silt
ahl	72	10	0.18347	1.5704	0.40739	2.747	0.05	GP loose	51.5-91	104-200	33.6-43	colluvium
grove	65	12.5	0.20216	1.5241	0.42483	1.8766	0.1	GP medium dense	117-122	288-432	38.7-40.4	65-82%gravel
ellinor	40	10	0.24713	1.5089	0.43059	2.7136	0.25	GM loose	51.5-91	104-200	33.6-43	colluvium(graywacke)
juno	50	45	0.33736	1.3072	0.50669	0.11947	0.2	SW dense to very dense	124-130	0	47.5-55.9	sw-sm w/19% a gravel ,12% silt
hoquiam	45	32.5	0.2975	1.3454	0.49228	0.26045	0.25	MH loose	48.4-107.3	80-300	34.4-39.2	alluvium
schneider	50	15	0.23338	1.4685	0.44581	1.4162	0.1	GP loose	51.5-91	104-200	33.6-43	colluvium
deckerville	35	45	0.37102	1.2784	0.51757	0.15908	0.3	GC dense to very dense	106-118	0-360	33.6-44.7	glacial till(graywacke)