LOCATION HATANA                  WA

Tentative Series
IRD. AJF/MGR/MPR
01/2025

HATANA SERIES

Landscape--river valleys
Landform--alluvial terraces
Slope--0 to 15 percent
Parent material--alluvium
Mean annual precipitation--about 2500 mm
Mean annual air temperature-- about 12 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--udic
Soil temperature regime--isomesic
Soil moisture subclass--typic

TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, mixed, active, isomesic Typic Dystrudepts

TYPICAL PEDON: Hatana sandy loam on a forested alluvial terrace with a slope of 2 percent and an elevation of 125 m. (The soil was moist throughout when described.)

A--0 to 10 cm;) very dark grayish brown (10YR 3/2) dry, very dark brown (10YR 2/2); sandy loam; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; many very fine and common fine roots; common fine irregular pores; very strongly acid (pH 4.9); abrupt smooth boundary

Bw1--10 to 35 cm; dark grayish brown (10YR 4/2) dry, very dark grayish brown (10YR 3/2); find sandy loam; weak fine subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; common very fine and few fine and medium roots; common fine irregular pores; very strongly acid (pH 5.1); abrupt smooth boundary

Bw2--35 to 62 cm; dark grayish brown (10YR 4/2) dry, very dark grayish brown (10YR 3/2); sandy loam; weak medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; few very fine, fine, medium, and coarse roots; common fine irregular; very strongly acid (pH 5.2); abrupt smooth boundary

BC--62 to 79 cm; very dark grayish brown (10YR 3/2) dry, very dark gray (10YR 3/1); gravelly sandy loam; weak fine subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; few very fine and fine roots; few fine irregular and interstitial pores; 30 percent gravel; very strongly acid (pH 5.3); abrupt smooth boundary

C--79 to 150 cm; dark grayish brown (10YR 4/2) dry, very dark gray (10YR 3/1); very gravelly loamy sand; single grain structure; loose, loose, non-sticky, non-plastic; few very fine roots; common very fine and fine interstitial pores; 45 percent gravel, 5 percent cobbles; very strongly acid (pH 5.4)

TYPE LOCATION: Olympic National Park, Jefferson County, Washington; Queets River Trail, east side of Queets River and approximately 200 meters east of Tshletshy way trail junction
Latitude--47.659459
Longitude-- -123.933756
Datum--WGS84

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--10 to 15 degrees C
Mean summer soil temperature--12 to 17 degrees C

Particle-size control section
*Clay content--2 to 12 percent
*Total rock fragment content--25 to 50 percent
*Gravel content--25 to 50 percent
*Cobble content--0 to 10 percent

A horizon
Value--2 to 4 moist or dry
Chroma--1 or 2 moist or dry
Fine-earth texture--sandy loam, loam
Clay content--5 to 10 percent
Reaction--4.5 to 5.5
Thickness--8 to 15 cm

Bw horizons
Value--3 to 5 moist or dry
Chroma--1 or 2 moist or dry
Fine-earth texture--sandy loam, fine sandy loam
Clay content--5 to 10 percent
Reaction--4.5 to 5.5
Combined thickness--40 to 70 cm

BC and C horizons
Value--3 to 5 moist or dry
Chroma--1 or 2 moist or dry
Fine-earth texture--loamy sand or sandy loam
Clay content--1 to 8 percent
Total rock fragment content--25 to 60
Gravel content--25 to 50 percent
Cobble content--0 to 10 percent
Reaction--4.5 to 5.5
Combined thickness--65 to 105 cm

COMPETING SERIES: None

GEOGRAPHIC SETTING:
Elevation--50 to 300 m
Climate--warm, moist summers; mild, wet winters
Mean annual precipitation--2000 to 3000 mm
Mean annual air temperature--10 to 14 degrees C
Frost-free period--180 to 240 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Marymere--has cambic horizon; occurs on similar landforms with less frequent flooding
Muscott--has sandy-skeletal particle size class and is somewhat excessively well drained; occurs on similar landforms
Cragcreek--has umbric epipedon and cambic diagnostic horizon; occurs on similar landforms with less frequent flooding
Rica--has aquic conditions within 50 cm of soil surface; occurs on depressions on similar landforms
Mountmeany--has umbric epipedon and coarse loamy particle size class; occurs on similar landforms with less frequent flooding

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturation in normal years--none
Flooding--occasional or rare; brief
Ponding--none
Saturated hydraulic conductivity (Ksat)--high or very high throughout

USE AND VEGETATION:
Use--wildlife habitat and recreation
Potential natural vegetation--Sitka spruce, red alder, black cottonwood, Sitka willow, vine maple, western swordfern, dwarf fireweed, common sheep sorrel, trailing blackberry

DISTRIBUTION AND EXTENT: Olympic Mountains and Coast, Washington; MLRA's 1 and 4a; moderate extent

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana

SERIES PROPOSED: Olympic National Park, Jefferson County, Washington 2023; name from Hatana Falls in Olympic National Park

REMARKS:
Diagnostic horizons and other features in this pedon
*Particle-size control section--zone from 25 to 100 cm
*Contrasting particle size classes
*Ochric epipedon
*Cambic diagnostic horizon--zone from 10 to 62 cm

---

National Cooperative Soil Survey
U.S.A.