IDENTIFIERS

Current Taxon Name (Soil Name): Whitestone

OSD

Series Extent

User Site ID: S1999WA063004

User Pedon ID: S1999WA063004

Lab Information:

Certified Lab Pedon Description - no

Lab Pedon # - 00P0797

NCSS Pedon Lab Data NASIS Record ID - 12295

Print Date: 11/12/2025

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 47.8451653

Std. Longitude: -117.4447632

Datum: WGS84

Township: 27N

Range: 42E

Section: 13

PLSS Details: about 50 feet south and 2,450 feet east of the NW corner

Location Description: This pedon is located about 50 feet south and 2,450 feet east of the NW corner of section 13 (50 feet south and 250 feet west of the intersection of Austin and Woolard Roads), about 7 miles south of Deer Park.

State: Washington

County: WA063—Spokane

MLRA: 44—Northern Rocky Mountain Valleys

Non-MLRA Soil Survey Area: WA063—Spokane County, Washington

7.5 Minute USGS Quad: 47117-G4—Dartford, Washington

PEDON

Describers Name: Dean White

Current Taxonomic Class: Loamy-skeletal, mixed, mesic Vitrandic Haploxerolls

Current Taxon Kind: series

Pedon Type: not classified to current taxon name

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Whitestone

PSC - 25 to 100 cm.

Classificaton Date - 2/10/2012

Soil Taxonomic Edition - eleventh edition

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - Leecher Variant, hi ppt

Classificaton Date - 4/16/1999

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: coarse-silty volcanic ash and/or coarse-silty loess and/or coarse-loamy outwash over sandy and gravelly outwash derived from granite

Landscape: upland

Landform: terrace

Geomorphic Component Terraces: tread

Hill Slope Profile: summit

Slope Position: upper third

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: linear

Runoff: low

Drainage Class: somewhat excessively

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 4/16/1999 (actual site observation date)

Air Photo ID: 14N/H-20

Plant Association Name: PIPO/PSME/SYAL

Surface Cover Properties:

Site Obs. Cover Kind 1 - crop cover

Site Obs. Cover Kind 2 - close-grown crop

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Current Weather - sunny

Current Air Temp - 13

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon cambic horizon	0—23 23—51	20—23—23 —28—

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
1	823	122	662	—	315	533	—	105	7	—	—	—	—	—	—	—	—	Deer Park	nonFOCS

Ap—0 to 23 centimeters (0.0 to 9.1 inches); brown (10YR 5/3) interior, very dark grayish brown (10YR 3/2) crushed, moist; gravelly loam; 40 percent sand; 52 percent silt; 8 percent clay; moderate medium subangular blocky, and moderate fine subangular blocky structure; slightly hard, friable, nonsticky, slightly plastic; low toughness; moderate permeability; low excavation difficulty; 3.5 very fine roots throughout and 0.5 fine roots throughout; 2.0 very fine low-continuity interstitial and 1.0 very fine low-continuity dendritic tubular pores; 10 percent by volume nonflat subrounded indurated 2-3-5 millimeter quartzite fragments and 20 percent by volume nonflat subrounded indurated 2-3-5 millimeter granite fragments; noneffervescent, by hcl, 1n; moderately acid, pH 5.6, hellige-truog; abrupt smooth boundary.; observed in pit, small. The Ap horizon here in this pit and the other 4 backhoe pits overall ranges from 8 to 10" thick. In all cases, the Ap horizon is more than 1/3 of the thickness to the bottom of the Bw horizon and thus is a MOLLIC epipedon. Cultivated Ap horizons that are 10YR 3/2 for 8 to 10" are also typical for the geographically associated Clayton soils. However, most cultivated Clayton soils here are mollic for 8 to 9 inches but have E and Bt fine sandy loam and loamy fine sand horizons that extend below 30" depth and thus don't have mollic epipedons. The Leecher soils in the backhoe pits here have sandy-skeletal horizons by 20 to 25" that are obvious C horizons, thereby enabling these profiles to have mollic epipedons.

Bw—23 to 51 centimeters (9.1 to 20.1 inches); light yellowish brown (10YR 6/4) interior, brown (7.5YR 4/4) crushed, moist; gravelly loam; 43 percent sand; 47 percent silt; 10 percent clay; weak very coarse subangular blocky parts to moderate medium subangular blocky structure; slightly hard, friable, nonsticky, slightly plastic; medium toughness; moderate permeability; moderate excavation difficulty; 2.0 very fine roots throughout and 0.5 medium roots throughout and 0.5 fine roots throughout; 1.5 very fine low-continuity interstitial and 2.5 very fine low-continuity dendritic tubular pores; 11 percent by volume nonflat subrounded indurated 2-3-5 millimeter quartzite fragments and 22 percent by volume nonflat subrounded indurated 2-3-5 millimeter granite fragments; noneffervescent, by hcl, 1n; moderately acid, pH 5.7, hellige-truog; abrupt wavy boundary.; observed in pit, small

2C1—51 to 86 centimeters (20.1 to 33.9 inches); 65 percent pale yellow (2.5Y 8/2) exterior and 35 percent grayish brown (2.5Y 5/2) exterior, 65 percent pale yellow (2.5Y 8/2) exterior and 35 percent dark grayish brown (2.5Y 4/2) exterior, moist; extremely gravelly coarse sand; 100 percent sand; structureless single grain; loose, loose, nonsticky, nonplastic; low toughness; very rapid permeability; low excavation difficulty; 1.5 very fine roots throughout and 0.5 medium roots throughout and 0.5 coarse roots throughout; 2.0 very fine low-continuity interstitial and 3.0 medium moderate-continuity interstitial and 2.0 fine low-continuity interstitial pores; 20 percent distinct strong brown (7.5YR 4/6), moist, clay films on rock fragments; 5 percent by volume nonflat subrounded indurated 75-127-203 millimeter granite fragments and 15 percent by volume nonflat subrounded indurated 2-4-5 millimeter quartzite fragments and 25 percent by volume nonflat subrounded indurated 2-4-5 millimeter granite fragments and 35 percent by volume nonflat subangular indurated 25-51-75 millimeter granite fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.3, hellige-truog; gradual smooth boundary.; observed in pit, small. The other side, or south side of the backhoe pit here has more rock fragments in the 2C1 and 2C2 horizons than the north side of the pit which was described.; patchy - phpvsfiid 20627; patchy - phpvsfiid 20627

2C2—86 to 145 centimeters (33.9 to 57.1 inches); 55 percent pale yellow (2.5Y 8/2) exterior and 45 percent grayish brown (2.5Y 5/2) exterior, 55 percent pale yellow (2.5Y 8/2) exterior and 45 percent dark grayish brown (2.5Y 4/2) exterior, moist; extremely gravelly coarse sand; 100 percent sand; structureless single grain; loose, loose, nonsticky, nonplastic; low toughness; very rapid permeability; low excavation difficulty; 0.5 very fine roots throughout and 0.5 coarse roots throughout; 2.0 very fine low-continuity interstitial and 2.0 medium moderate-continuity interstitial and 2.0 fine low-continuity interstitial pores; 5 percent by volume nonflat subangular indurated 75-127-203 millimeter granite fragments and 8 percent by volume nonflat subrounded indurated 2-4-5 millimeter quartzite fragments and 15 percent by volume nonflat subangular indurated 25-51-75 millimeter granite fragments and 42 percent by volume nonflat subrounded indurated 2-4-5 millimeter granite fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.4, hellige-truog; abrupt wavy boundary.; observed in pit, small. An isolated 8" wide and 3" thick unlaminated, massive chunk of lacustrine silt loam bedding was found at 36" depth in the 2C2 horizon, and it is slightly tilted off of horizontal. My best interpretation of what may have happened here is that this lacustrine clast was ripped up from an original lacutrine layer at 57 to 61" and deposited higher up in the profile with the sands and gravel from the last glacial lake flood to hit the area.

2C3—145 to 183 centimeters (57.1 to 72.0 inches); 75 percent grayish brown (2.5Y 5/2) exterior and 25 percent pale yellow (2.5Y 8/2) exterior, light olive brown (2.5Y 5/3) crushed, moist; gravelly sand; 100 percent sand; structureless single grain; loose, loose, nonsticky, nonplastic; low toughness; very rapid permeability; low excavation difficulty; 0.5 very fine roots throughout and 0.5 coarse roots throughout; 4.0 very fine low-continuity interstitial pores; 2 percent by volume nonflat subangular indurated 250-279-330 millimeter granite fragments and 10 percent by volume nonflat subrounded indurated 2-4-5 millimeter quartzite fragments and 22 percent by volume nonflat subrounded indurated 2-4-5 millimeter granite fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.5, hellige-truog.; observed in pit, small. On the south side of the backhoe pit which was not used for the profile description, a massive, nonlaminated lacustrine clast about 20 inches long was found at 57 to 61 inches. The clast is orientated horizontally and has 2 vertical breaks in it that are filled with coarse sand from the surrounding horizon areas. My interpretation here is that the clast is a remnant of an originally continuous, quick dump lacustrine layer that was deposited in a briefly flood lake that followed the end of an older flood and was partially to mostly destroyed and then covered up by sandy and gravelly deposits from the last glacial lake flood to hit the area. Since the lacustrine layer only exists in very isolated clasts in this backhoe pit, overall permeability below 20" is still very rapid for use and management. The lacustrine clast is silt loam with 26-27% clay and 2.5Y 5/3 moist rubbed color. Apparent, horizontally orientated redox concentration cause 55% of the moist unrubbed color to be 2.5Y 5/4 while the other 45% is 2.5Y 5/3. There are numerous very fine to medium pores and decaying roots in this lacustrine clast, indicating that plant roots do penetrate to this depth and that plant roots can easily penetrate this massive lacustrine clast in this backhoe pit. Also, the north side of the pit, which was described, has a discontinuous lense of loamy sand from 57 to 57.5" depth.