*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM

Sampled as on Aug 16, 1992:Sinnice ; Ashy over pumiceous or cindery Thaptic Vitricryands
Revised to :
United States Department of Agriculture
SSL-ProjectCP92WA258   MOUNT ST HELENSNatural Resources Conservation Service
-Site IDS1992WA059002   Lat: 46° 15' 35.01" north  Long: 122° 6' 23.01" west  MLRA: 3National Soil Survey Center
-Pedon No. 92P0937Soil Survey Laboratory
-General Methods 1B1A, 2A1, 2BLincoln, Nebraska 68508-3866
LayerHorizonOrig HznDepth (cm)Field Label 1Field Label 2Field Label 3Field TextureLab Texture
 
92P05637C1C10-7LCOS
92P05638C2C27-28S COS
92P056392Bwb2BwB28-73S COS
92P056403Ab3A673-91LFS FSL
92P056414Bwb14Bw1B91-135S COS
92P056424Bwb24Bw2B135-210S COS
92P056434C4C210-235S COS
92P056440-720-75
92P056457-2820-75
92P0564628-7320-75
92P0564773-81GRASH
92P0564881-91BRASH
92P0564991-13520-75
92P05650135-21020-75
92P05651210-23520-75
Pedon Calculations
Calculation NameResultUnits of Measure
 
CEC Activity, CEC7/Clay, Weighted Average5.25(NA)
Clay, carbonate free, Weighted Average0% wt
Weighted Particles, 0.1-75mm, 75 mm Base89% wt
Volume, >2mm, Weighted Average45% vol
Clay, total, Weighted Average0% wt
 
Weighted averages based on control section: 0-100 cm


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
PSDA  &  Rock Fragments-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
 
(- - - - - Total - - - - - -)(- - Clay - - -)(- - - - Silt - - - - -)(- - - - - - - - - - - - Sand - - - - - - - - - - - -)( Rock Fragments   (mm) )
LabClaySiltSandFineCO3FineCoarseVFFMCVC(- - - - - - - - Weight - - - - - - - -)>2 mm
Text-<.002.05<<.002.02.05.10.25.512520.1-wt %
Depthure.002-.05-2.0002.002-.02-.05-.10-.25-.50-1-2-5-20-7575whole
Layer(cm)HorzPrep(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)(- - - - - - - % of <75mm - - - - - -)soil
3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3B13B13B1
 
92P056370-7C1Slcos0.422.477.1--13.59.05.28.323.928.011.7102878545
92P056387-28C2Scos--2.297.8--2.24.522.832.825.811.9191669641
92P0563928-732BwbScos--6.593.5--3.13.41.74.514.332.840.21651139880
92P0564073-913AbSfsl--39.260.8--21.218.012.418.620.66.72.5143538
92P0564191-1354Bwb1Scos--6.193.9--2.83.31.73.88.431.748.3416289875
92P05642135-2104Bwb2Scos--8.591.5--4.14.42.34.810.633.540.31150289989
92P05643210-2354CScos--6.393.7--3.52.81.23.35.826.157.31757149988
92P056440-7S------
92P056457-28S------
92P0564628-73S------
92P0564773-81S------
92P0564881-91S------
92P0564991-135S------
92P05650135-210S------
92P05651210-235S------


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
Bulk Density  &  Moisture-1--2--3--4--5--6--7--8--9--10--11--12--13--14-
 
(Bulk Density)Cole(- - - - - - - - - - - Water Content - - - - - - - - - - -)( Air Dry-Oven Dry )WRDAggst
33OvenWhole6103315001500 kPa(- - - - Ratio - - - -)WholeStabl(- - Ratio/Clay - -)
DepthkPaDrySoilkPakPakPakPaMoistCorrectedSoil2-0.5mm CEC71500 kPa
Layer(cm)HorzPrep (- - - g cm-3 - - -) (- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -) cm3 cm-3%
4A1d4A1h4B1c3C2a1a3D14C1
 
92P056370-7C1S2.41.001
92P056387-28C2S1.51.001
92P0563928-732BwbS2.81.004
92P0564073-913AbS1.071.120.01520.22.61.0080.18
92P0564191-1354Bwb1S1.11.002
92P05642135-2104Bwb2S1.51.003
92P05643210-2354CS1.81.001
92P056440-7GP9.81.000
92P056457-28GP1.91.000
92P0564628-73GP4.31.002
92P0564773-81GP3.91.009
92P0564881-91GP2.21.008
92P0564991-135GP2.31.002
92P05650135-210GP2.11.001
92P05651210-235GP2.41.001


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
Carbon  &  Extractions-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18--19-
 
(- - - - - Total - - - - -)EstOCC/N(- - - Dith-Cit Ext - - -)(- - - - - - Ammonium Oxalate Extraction - - - - - -)(- - - Na Pyro-Phosphate - - -)
DepthCNSOC(WB)RatioFeAlMnAl+½FeODOEFeAlSiMnCFeAlMn
Layer(cm)HorzPrep(- - - - - - - - - - % of <2 mm - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)mg kg-1(- - - - - - % of < 2mm - - - - -)
6A2d6B3a6R3b6A1c6C2b6G7a6D2a8J6C9b6G12b6V2b6D5b6C8a6G10
 
92P056370-7C1S0.140.0190.010.150.3tr--0.140.030.220.03--tr--
92P056387-28C2S0.340.0450.010.350.3tr--0.030.31--tr--
92P0563928-732BwbS0.810.0290.020.680.20.1--0.270.200.260.14--tr0.1
92P0564073-913AbS1.830.0740.011.870.40.3--0.540.300.430.330.030.10.3
92P0564191-1354Bwb1S0.130.0190.020.110.40.1--0.180.040.230.07--trtr
92P05642135-2104Bwb2S0.160.0280.020.160.40.1--0.300.060.370.110.01trtr
92P05643210-2354CS0.180.0740.010.130.30.1--0.250.050.250.130.0274.0----
92P056440-7GP0.1tr--0.020.100.01------
92P056457-28GP0.2tr--0.040.270.070.06103.1--tr
92P0564628-73GP0.10.1--0.070.280.120.0794.4tr0.1
92P0564773-81GP0.60.3--0.370.530.330.0758.40.10.3
92P0564881-91GP0.40.3--0.190.510.290.090.10.3
92P0564991-135GP0.20.1tr0.050.320.080.03114.3tr0.1
92P05650135-210GP0.3trtr0.040.380.070.03113.2tr0.1
92P05651210-235GP0.1tr--0.030.170.050.02tr0.1
CEC  &  Bases-1--2--3--4--5--6--7--8--9--10--11--12--13--14-
 
(- - - - - - NH4OAC Extractable Bases - - - - -)CEC8CEC7ECEC(- - - - Base - - - -)
SumAcid-ExtrKClSumNH4BasesAl(- Saturation -)
DepthCaMgNaKBasesityAlMnCatsOAC+AlSatSumNH4OAC
Layer(cm)HorzPrep(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)mg kg-1(- - - - cmol(+) kg-1 - - -)(- - - - - - - - % - - - - - - - -)
6N2e6O2d6P2b6Q2b6H5a6G9c6D3b5A3a5A8b5A3b5G15C35C1
 
92P056370-7C1S0.50.20.2tr0.91.90.10.12.82.11.0103243
92P056387-28C2S0.30.10.1tr0.52.30.10.22.82.00.6171825
92P0563928-732BwbS0.5tr0.1tr0.69.40.3--10.03.90.933615
92P0564073-913AbS0.7trtrtr0.712.21.50.512.97.82.26859
92P0564191-1354Bwb1S0.40.1tr0.10.62.80.10.23.43.00.7141820
92P05642135-2104Bwb2S0.50.1trtr0.64.7--0.15.32.91121
92P05643210-2354CS0.20.10.20.10.63.3--0.13.91.51540


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
Salt-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18--19--20-
 
(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)1:2
TotalElecElecExch
DepthCaMgNaKCO3HCO3FClPO4BrOACSO4NO2NO3H2OSaltsCondCondNaSAR
Layer(cm)HorzPrep(- - - - - mmol(+) L-1 - - - - -)(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)(- - - - % - - - -)(- - dS m-1 - -)%
4F1a1a1
 
92P056370-7C1S0.0810
92P056387-28C2S0.075
92P0563928-732BwbS0.063
92P0564073-913AbS0.08--
92P0564191-1354Bwb1S0.03--
92P05642135-2104Bwb2S0.03--
92P05643210-2354CS0.0213
92P056440-7GP0.08
pH  &  Carbonates-1--2--3--4--5--6--7--8--9--10--11-
 
(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)(- - Carbonate - -)(- - Gypsum - - -)
CaCl2As CaCO3As CaSO4*2H2OResist
Depth0.01MH2OSat<2mm<20mm<2mm<20mmohms
Layer(cm)HorzPrepKCl1:21:1PasteOxidNaF(- - - - - - - - - - - - % - - - - - - - - - - -)cm-1
4C1a2a34C1a2a4C1a2a4C1a1a1
 
92P056370-7C1S4.14.55.77.7
92P056387-28C2S3.94.44.87.5
92P0563928-732BwbS4.34.65.29.1
92P0564073-913AbS4.34.55.110.3
92P0564191-1354Bwb1S4.44.95.47.8
92P05642135-2104Bwb2S4.44.95.57.7
92P05643210-2354CS4.65.05.67.8
92P056440-7GP5.37.7
92P056457-28GP6.47.7
92P0564628-73GP5.09.1
92P0564773-81GP4.210.1
92P0564881-91GP4.510.3
92P0564991-135GP6.19.0
92P05650135-210GP6.28.9
92P05651210-235GP6.09.0


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
Phosphorous-1--2--3--4--5--6--7--8--9--10--11--12-
 
(- - - - - - - - - - - - - - - - - - - - - - - Phosphorous - - - - - - - - - - - - - - - - - - - - -)KCl
MelanicNZAcidAnion Exch ResinBrayBrayOlsenH2OCitricMehlichExtr
DepthIndexOxalAvailableCapacity12AcidIIINO3
Layer(cm)HorzPrep%(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)
6S4
 
92P056370-7C1S11
92P056387-28C2S14
92P0563928-732BwbS32
92P0564073-913AbS38
92P0564191-1354Bwb1S14
92P05642135-2104Bwb2S23
92P05643210-2354CS14
92P056440-7GP14
92P056457-28GP11
92P0564628-73GP25
92P0564773-81GP36
92P0564881-91GP34
92P0564991-135GP20
92P05650135-210GP20
92P05651210-235GP17


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
Clay Mineralogy (<.002 mm)-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
X-RayThermalElementalEGMEInter
SiO2Al2O3Fe2O3MgOCaOK2ONa2ORetnpreta
DepthFract7A2i 7C3 tion
Layer(cm)Horzion( - - - - - - - - - peak size - - - - - - - - - - )(- - - - - - - - - % - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)mg g-1
92P056370.0-7.0C1tclyFD 3MT 2HE 1CR 1 133.4 1.2
92P056387.0-28.0C2tclyFD 1CR 1 11.3 0.8
92P0563928.0-73.02BwbtclyNX 6 tr1.7 --
92P0564073.0-91.03AbtclyFD 2CR 1 31.4 0.9
92P0564191.0-135.04Bwb1tclyNX 6 tr1.9 0.3
92P05642135.0-210.04Bwb2tclyMI 1 --1.1 0.8
92P05643210.0-235.04CtclyFD 1 --1.0 0.6

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
CR CristobaliteFD FeldsparHE HematiteMI MicaMT Montmorillonite
NX Non-Crystalline

RELATIVE PEAK SIZE:5 Very Large4 Large3 Medium2 Small1 Very Small6 No Peaks


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
Sand - Silt Mineralogy (2.0-0.002 mm)-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
X-RayThermalOpticalEGMEInter
Tot ReGrain CountRetnpreta
DepthFract 7B1a2 tion
Layer(cm)Horzion( - - - - - - - - peak size - - - - - - - - - )(- - - - - - - - % - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -) mg g-1
92P056370.0-7.0C1fs 14FP 45GS 18HY 9CD 9FG 7GC 3
HN 2FE 2OP 2GA 1QZ 1AU 1
92P056387.0-28.0C2fs 16FP 52GA 13CD 11HY 8GS 5FE 4
AU 3OP 1FG 1HN 1QZ tr
92P0563928.0-73.02Bwbfs 6FP 34GS 34FG 9GC 9HY 5CD 4
GA 2HN 2OP 1FE 1AU tr
92P0564073.0-91.03Abfs 14FP 55GS 11CD 10HY 9GA 6OP 3
GC 2FE 1AU 1FG 1HN 1
92P0564191.0-135.04Bwb1fs 10FP 45GS 27CD 8FG 6HY 6GC 4
OP 2HN 1AU 1FE trBT tr
92P05642135.0-210.04Bwb2fs 18FP 47GS 23CD 15HY 3GC 2GA 2
OP 2HN 2AU 2FE 1BT 1FG tr
92P05643210.0-235.04Cfs 8FP 44GS 23FG 14CD 6GC 4HY 3


*** Primary Characterization Data ***
Pedon ID: S1992WA059002( Skamania, Washington )Print Date: Nov 13 2025 8:53PM
Sampled As:SinniceAshy over pumiceous or cindery Thaptic Vitricryands
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  92P0937
Sand - Silt Mineralogy (2.0-0.002 mm)-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
X-RayThermalOpticalEGMEInter
Tot ReGrain CountRetnpreta
DepthFract 7B1a2 tion
Layer(cm)Horzion( - - - - - - - - peak size - - - - - - - - - )(- - - - - - - - % - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -) mg g-1
HN 2OP 1AU 1FE 1GA 1BT tr

FRACTION INTERPRETATION:
fs - Fine Sand 0.1-0.25 mm

MINERAL INTERPRETATION:
AU AugiteBT BiotiteCD Chert (ChalcedonyFE Iron Oxides (GoethiteFG Glass Coated Feldspar
FP Plagioclase FeldsparGA Glass AggregatesGC Glass Coated GrainGS GlassHN Hornblende
HY HyperstheneOP OpaquesQZ Quartz
NSSC SSL Report Creation