*** Primary Characterization Data ***

Pedon ID: S2019MO149010

( Oregon, Missouri )

Print Date: Dec 8 2025 5:09PM

Sampled as on Dec 9, 2020:	Plato ; Fine, mixed, active, mesic Aquic Fragiudalf
Revised to :

				United States Department of Agriculture
SSL	-	Project	C2020USMO039   Mark Twain Forest Service Project	Natural Resources Conservation Service
	-	Site ID	S2019MO149010   Lat: 36° 41' 24.85" north  Long: 91° 8' 40.48" west  MLRA: 116A	National Soil Survey Center
	-	Pedon No.	20N0328	Kellogg Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
20N01379	A	A	5-18	S2019MO149010-2			SIL	SIL
20N01380	Bt1	Bt1	18-28	S2019MO149010-3			SICL	SIL
20N01381	Bt2	Bt2	28-45	S2019MO149010-4			SIC	SIC
20N01382	Bt3	Bt3	45-67	S2019MO149010-5			SIC	SICL
20N01383	2Btx	2Btx	67-95	S2019MO149010-6			CL	SIL
20N01384	2Bt1	2Bt1	95-124	S2019MO149010-7			CL	C
20N01385	3Bt2	3Bt2	124-170	S2019MO149010-8			C	C

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Weighted Particles, 0.1-75mm, 75 mm Base	25	% wt
Volume, >2mm, Weighted Average	12	% vol
Clay, carbonate free, set 2, Weighted Average	34	% wt
Clay, total, set 2, Weighted Average	34	% wt
CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 8	0.41	(NA)
Weighted averages based on control section: 18-67 cm

---

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) )
				Lab	Clay	Silt	Sand	Fine	CO3	Fine	Coarse	VF	F	M	C	VC	(- - - - - - - - Weight - - - - - - - -)				>2 mm
				Text-	<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1	2	5	20	.1-	wt %
	Depth			ure	.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2	-5	-20	-75	75	whole
Layer	(cm)	Horz	Prep		(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)												(- - - - - - - % of <75mm - - - - - -)				soil
					3A1a1a				3A1a1a	3A1a1a		3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a
20N01379	5-18	A	S	sil	14.2	69.5	16.3			47.6	21.9	2.5	4.9	4.1	2.7	2.1	2	5	2	22	9
20N01380	18-28	Bt1	S	sil	22.1	64.7	13.2			44.7	20.0	2.0	3.6	4.7	1.7	1.2	1	tr	4	16	5
20N01381	28-45	Bt2	S	sic	41.5	50.6	7.9			38.4	12.2	1.3	2.3	2.2	0.8	1.3	2	4	5	17	11
20N01382	45-67	Bt3	S	sicl	33.4	52.8	13.8			37.4	15.4	2.3	3.7	3.5	1.9	2.4	8	13	6	35	29
20N01383	67-95	2Btx	S	sil	22.2	52.1	25.7		--	34.9	17.2	2.3	3.8	4.4	5.0	10.2	15	33	14	71	63
20N01384	95-124	2Bt1	S	c	40.3	36.5	23.2		--	25.0	11.5	1.7	2.5	4.6	5.1	9.3	11	17	10	51	42
20N01385	124-170	3Bt2	S	c	86.9	10.8	2.3		--	9.5	1.3	0.7	0.4	0.4	0.3	0.5	1	1	4	8	23

*** Primary Characterization Data ***

Pedon ID: S2019MO149010

( Oregon, Missouri )

Print Date: Dec 8 2025 5:09PM

Sampled As	:	Plato		Fine, mixed, active, mesic Aquic Fragiudalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0328

---

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 )		WRD	Aggst
				33	Oven	Whole	6	10	33	1500	1500 kPa	(- - - - Ratio - - - -)		Whole	Stabl	(- - Ratio/Clay - -)
	Depth			kPa	Dry	Soil	kPa	kPa	kPa	kPa	Moist		Corrected	Soil	2-0.5mm	CEC7	1500 kPa
Layer	(cm)	Horz	Prep	(- - - g cm-3 - - -)			(- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -)							cm3 cm-3	%
				DbWR1	DbWR1				DbWR1	3C2a1a		3D1
20N01379	5-18	A	S	1.36	1.39	0.007			22.4	6.0		1.012		0.21		0.56	0.42
20N01380	18-28	Bt1	S	1.47	1.62	0.032			20.5	8.3		1.015		0.18		0.40	0.38
20N01381	28-45	Bt2	S	1.43	1.69	0.053			24.1	15.1		1.031		0.12		0.40	0.36
20N01382	45-67	Bt3	S	1.46	1.68	0.038			22.1	12.8		1.026		0.11		0.42	0.38
20N01383	67-95	2Btx	S	1.45	1.50	0.006			20.7	7.7		1.013		0.10		0.32	0.35
20N01384	95-124	2Bt1	S	1.32	1.50	0.031			30.4	13.1		1.017		0.17		0.21	0.33
20N01385	124-170	3Bt2	S	1.32	1.61	0.059			33.2	26.6		1.040		0.08		0.23	0.31

---

Carbon  &  Extractions				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-
				(- - - - - Total - - - - -)			Est	OC	C/N	(- - - Dith-Cit Ext - - -)			(- - - - - - Ammonium Oxalate Extraction - - - - - -)						(- - - Na Pyro-Phosphate - - -)
	Depth			C	N	S	OC	(WB)	Ratio	Fe	Al	Mn	Al+½Fe	ODOE	Fe	Al	Si	Mn	C	Fe	Al	Mn
Layer	(cm)	Horz	Prep	(- - - - - - - - - - % of <2 mm - - - - - - - - - -)						(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)								mg kg-1	(- - - - - - % of < 2mm - - - - -)
				4H2a	4H2a	4H2a				4G1	4G1	4G1
20N01379	5-18	A	S	1.59	0.12	--	1.6		13	1.3	0.2	tr
20N01380	18-28	Bt1	S	0.65	0.09	--	0.7		7	1.7	0.2	tr
20N01381	28-45	Bt2	S	0.49	0.10	--	0.5		5	2.8	0.4	tr
20N01382	45-67	Bt3	S	0.35	0.07	--	0.4		5	1.8	0.2	tr
20N01383	67-95	2Btx	S	0.11	0.06	--	0.1		2	1.9	0.2	tr
20N01384	95-124	2Bt1	S	0.06	0.05	--	tr		1	4.0	0.3	tr
20N01385	124-170	3Bt2	S	0.08	0.07	--	0.1		1	4.9	0.5	tr

*** Primary Characterization Data ***

Pedon ID: S2019MO149010

( Oregon, Missouri )

Print Date: Dec 8 2025 5:09PM

Sampled As	:	Plato		Fine, mixed, active, mesic Aquic Fragiudalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0328

---

CEC  &  Bases				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(- - - - - - NH4OAC Extractable Bases - - - - -)								CEC8	CEC7	ECEC		(- - - - Base - - - -)
								Sum	Acid-	Extr	KCl	Sum	NH4	Bases	Al	(- Saturation -)
	Depth			Ca	Mg	Na	K	Bases	ity	Al	Mn	Cats	OAC	+Al	Sat	Sum	NH4OAC
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)							mg kg-1	(- - - - cmol(+) kg-1 - - -)			(- - - - - - - - % - - - - - - - -)
				4B1a1a	4B1a1a	4B1a1a	4B1a1a		4B2b1a1	4B3b1a	4B3b1a		4B1a1a
20N01379	5-18	A	S	0.5	1.5	tr	0.1	2.1	13.7	1.9	53.8	15.8	8.0	4.0	48	13	26
20N01380	18-28	Bt1	S	1.2	4.8	tr	0.1	6.1	7.4	0.3	26.0	13.5	8.8	6.4	5	45	69
20N01381	28-45	Bt2	S	3.0	11.1	0.1	0.3	14.5	7.8			22.3	16.8			65	86
20N01382	45-67	Bt3	S	3.2*	12.0	0.1	0.3	15.6	3.6			19.2	14.0			81	100
20N01383	67-95	2Btx	S	1.6*	7.2	0.1	0.1	9.0	1.1			10.1	7.2			89	100
20N01384	95-124	2Bt1	S	2.3*	8.0	0.1	0.1	10.5	1.4			11.9	8.6			88	100
20N01385	124-170	3Bt2	S	7.3*	16.2	0.1	0.3	23.9	4.8			28.7	19.6			83	100

^*Extractable Ca may contain Ca from calcium carbonate or gypsum., CEC7 base saturation set to 100.

---

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

Total

Elec

Elec

Exch

Depth

Ca

Mg

Na

K

CO3

HCO3

F

Cl

PO4

Br

OAC

SO4

NO2

NO3

H2O

Salts

Cond

Cond

Na

SAR

Layer

(cm)

Horz

Prep

(- - - - - mmol(+) L-1 - - - - -)

(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)

(- - - - % - - - -)

(- - dS m-1 - -)

%

20N01379

5-18

A

S

tr

20N01380

18-28

Bt1

S

tr

20N01381

28-45

Bt2

S

tr

20N01382

45-67

Bt3

S

tr

20N01383

67-95

2Btx

S

1

20N01384

95-124

2Bt1

S

1

20N01385

124-170

3Bt2

S

tr

*** Primary Characterization Data ***

Pedon ID: S2019MO149010

( Oregon, Missouri )

Print Date: Dec 8 2025 5:09PM

Sampled As	:	Plato		Fine, mixed, active, mesic Aquic Fragiudalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0328

---

pH  &  Carbonates				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-
				(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)						(- - Carbonate - -)		(- - Gypsum - - -)
					CaCl2					As CaCO3		As CaSO4*2H2O		Resist
	Depth				0.01M	H2O	Sat			<2mm	<20mm	<2mm	<20mm	ohms
Layer	(cm)	Horz	Prep	KCl	1:2	1:1	Paste	Oxid	NaF	(- - - - - - - - - - - - % - - - - - - - - - - -)				cm-1
				4C1a2a3	4C1a2a	4C1a2a				4E1a1a1a1
20N01379	5-18	A	S	4.0	4.0	4.4
20N01380	18-28	Bt1	S	4.6	4.8	5.5
20N01381	28-45	Bt2	S	5.6	5.7	6.4
20N01382	45-67	Bt3	S	6.6	6.6	7.3
20N01383	67-95	2Btx	S	6.9	8.1	7.9				tr
20N01384	95-124	2Bt1	S	7.0	7.4	8.0				tr
20N01385	124-170	3Bt2	S	7.0	8.2	8.3				tr

---

Phosphorous

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

(- - - - - - - - - - - - - - - - - - - - - - - Phosphorous - - - - - - - - - - - - - - - - - - - - -)

KCl

Melanic

NZ

Acid

Anion Exch Resin

Bray

Bray

Olsen

H2O

Citric

Mehlich

Extr

Depth

Index

Oxal

Available

Capacity

1

2

Acid

III

NO3

Layer

(cm)

Horz

Prep

%

(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)

4D3a1

20N01379

5-18

A

S

4.1

20N01380

18-28

Bt1

S

0.4

20N01381

28-45

Bt2

S

0.1

20N01382

45-67

Bt3

S

0.1

20N01383

67-95

2Btx

S

0.1

20N01384

95-124

2Bt1

S

0.2

20N01385

124-170

3Bt2

S

0.1

*** Primary Characterization Data ***

Pedon ID: S2019MO149010

( Oregon, Missouri )

Print Date: Dec 8 2025 5:09PM

Sampled As	:	Plato		Fine, mixed, active, mesic Aquic Fragiudalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0328

---

Clay Mineralogy (<.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Elemental

EGME

Inter

SiO2

Al2O3

Fe2O3

MgO

CaO

K2O

Na2O

Retn

preta

Depth

Fract

7A1b1

tion

Layer

(cm)

Horz

ion

( - - - - - - - - - peak size - - - - - - - - - - )

(- - - - - - - - - % - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)

mg g-1

20N01380

18.0-28.0

Bt1

tcly

QZ 3

VR 3

KK 2

MI 1

CMIX

20N01381

28.0-45.0

Bt2

tcly

QZ 3

VR 3

KK 2

MI 1

GI 1

CMIX

20N01383

67.0-95.0

2Btx

tcly

QZ 4

VR 2

KK 2

MI 1

CMIX

20N01384

95.0-124.0

2Bt1

tcly

QZ 3

KK 2

VR 2

CMIX

20N01385

124.0-170.0

3Bt2

tcly

QZ 3

KK 2

VR 1

MI 1

GI 1

CMIX

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
GI Gibbsite	KK Kaolinite	MI Mica	QZ Quartz	VR Vermiculite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

INTERPRETATION (BY HORIZON):
CMIX - Mixed Clay

*** Primary Characterization Data ***

Pedon ID: S2019MO149010

( Oregon, Missouri )

Print Date: Dec 8 2025 5:09PM

Sampled As	:	Plato		Fine, mixed, active, mesic Aquic Fragiudalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0328

---

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-Ray

Thermal

Optical

EGME

Inter

Tot Re

Grain Count

Retn

preta

Depth

Fract

7B1a2

tion

Layer

(cm)

Horz

ion

( - - - - - - - - peak size - - - - - - - - - )

(- - - - - - - - % - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -)

mg g-1

20N01380

18.0-28.0

Bt1

csi

85

QZ 83

FK 6

MS 3

OP 2

GS 2

HN 1

SMIX

BT 1

BY tr

CD tr

FE tr

PO tr

ZR tr

PR tr

20N01381

28.0-45.0

Bt2

csi

85

QZ 83

FK 8

MS 3

BT 2

GS 2

HN 1

SMIX

OP 1

PO 1

PR 1

BY tr

CD tr

FE tr

RU tr

ZR tr

20N01382

45.0-67.0

Bt3

csi

80

QZ 78

FK 11

MS 4

BT 2

OP 1

FE 1

SMIX

HN 1

PR 1

RU tr

ZR tr

PO tr

BY tr

CD tr

GS tr

FRACTION INTERPRETATION:
csi - Coarse Silt 0.02-0.05 mm

MINERAL INTERPRETATION:
BT Biotite	BY Beryl	CD Chert (Chalcedony	FE Iron Oxides (Goethite	FK Potassium Feldspar
GS Glass	HN Hornblende	MS Muscovite	OP Opaques	PO Plant Opal
PR Pyroxene	QZ Quartz	RU Rutile	ZR Zircon

*** Primary Characterization Data ***

Pedon ID: S2019MO149010

( Oregon, Missouri )

Print Date: Dec 8 2025 5:09PM

Sampled As	:	Plato		Fine, mixed, active, mesic Aquic Fragiudalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0328

---

INTERPRETATION (BY HORIZON):
SMIX - Mixed Sand