*** Primary Characterization Data ***

Pedon ID: S1949SD115013

( Spink, South Dakota )

Print Date: Dec 23 2025 10:46PM

Sampled as on Sep 12, 1949:	HARMONY
Revised to correlated:	Harmony ; Fine, smectitic, mesic Pachic Udic Argiborolls

				United States Department of Agriculture
SSL	-	Project	NL40001   SSIR SAMPLES	Soil Conservation Service
	-	Site ID	S1949SD115013   Lat: 44° 47' 28.00" north  Long: 98° 22' 50.00" west  MLRA: 55B	Mandan Soil Survey Laboratory
	-	Pedon No.	40A2395	Soil Laboratory
	-	General Methods 1B1A, 2A1, 2B		Mandan, North Dakota

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
40A18751	A	A1	0-15	13				SICL
40A18752	E	A2	15-33	14				SICL
40A18753	B1	B2	33-51	15				SICL
40A18754	B2	B3	51-71	16				SICL
40A18755	C1	C 1	71-107	17				SICL
40A18756	C2	C 2	107-157	18				SIC
40A18757	2C	2C 3	157-165	19				FSL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.59	(NA)
Clay, carbonate free, Weighted Average	35	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	1	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	35	% wt
Weighted averages based on control section: 25-100 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	3A1a1a	3A1a1a	3A1a1a	3B1	3B1	3B1
40A18751	0-15	A	S	sicl	29.2	64.5	6.3			41.6	22.9	3.8	1.6	0.5	0.3	0.1	--	--	--	3	--
40A18752	15-33	E	S	sicl	34.0	61.4	4.6			41.0	20.4	3.1	1.0	0.3	0.2	--	--	--	--	2	--
40A18753	33-51	B1	S	sicl	37.0	60.6	2.4			48.9	11.7	1.2	0.7	0.3	0.2	--	--	--	--	1	--
40A18754	51-71	B2	S	sicl	34.9	64.3	0.8			57.1	7.2	0.5	0.2	0.1	--	--	--	--	--	tr	--
40A18755	71-107	C1	S	sicl	34.4	64.6	1.0			62.9	1.7	0.4	0.4	0.1	0.1	--	--	--	--	1	--
40A18756	107-157	C2	S	sic	44.2	53.8	2.0			46.1	7.7	0.8	0.7	0.2	0.3	--	--	--	--	1	--
40A18757	157-165	2C	S	fsl	16.5	15.0	68.5			11.3	3.7	4.0	40.9	10.4	8.8	4.4	--	--	--	65	--

*** Primary Characterization Data ***

Pedon ID: S1949SD115013

( Spink, South Dakota )

Print Date: Dec 23 2025 10:46PM

Sampled As	:	HARMONY
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A2395

---

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

%

8D1

40A18751

0-15

A

S

1.07

40A18752

15-33

E

S

0.77

40A18753

33-51

B1

S

0.77

40A18754

51-71

B2

S

0.76

40A18755

71-107

C1

S

0.30

40A18756

107-157

C2

S

0.58

40A18757

157-165

2C

S

0.71

---

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 - - - - -)

6A1c

40A18751

0-15

A

S

3.81

40A18752

15-33

E

S

1.54

40A18753

33-51

B1

S

1.20

40A18754

51-71

B2

S

0.85

40A18755

71-107

C1

S

0.43

40A18756

107-157

C2

S

0.27

40A18757

157-165

2C

S

0.14

*** Primary Characterization Data ***

Pedon ID: S1949SD115013

( Spink, South Dakota )

Print Date: Dec 23 2025 10:46PM

Sampled As	:	HARMONY
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A2395

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2e	6O2d	6P2b	6Q2b						5A8b			5C3	5C1
40A18751	0-15	A	S	17.8	7.0	0.1	0.9						31.3			100	82
40A18752	15-33	E	S	12.4	9.1	0.4	3.0						26.3			100	95
40A18753	33-51	B1	S	12.2	14.0	0.5	0.7						28.5			100	96
40A18754	51-71	B2	S			0.8	0.6						26.4			100
40A18755	71-107	C1	S			0.3	0.2						10.4			100
40A18756	107-157	C2	S				1.9						25.5			100
40A18757	157-165	2C	S			0.2	2.0						11.7			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 - -)		%
						6P1b	6Q1b											8A	8D5	8A3a
40A18751	0-15	A	S			0.1	0.1											33.8	tr	0.50		tr
40A18752	15-33	E	S			0.1	0.1											28.0	tr	0.34		2
40A18753	33-51	B1	S			0.2	0.1											29.3	tr	0.40		2
40A18754	51-71	B2	S			0.3	0.2											30.3	tr	0.77		3
40A18755	71-107	C1	S			2.8	0.5											36.3	0.1	5.20		2
40A18756	107-157	C2	S			6.8	0.4											42.2	0.2	6.80		--
40A18757	157-165	2C	S			1.4	0.1											16.3	0.1	7.60		2

*** Primary Characterization Data ***

Pedon ID: S1949SD115013

( Spink, South Dakota )

Print Date: Dec 23 2025 10:46PM

Sampled As	:	HARMONY
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A2395

---

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
						4C1a2a	8C1b			6E1g		4E2a1a1a1
40A18751	0-15	A	S			6.4	6.2			--		--
40A18752	15-33	E	S			6.5	6.3			--		--
40A18753	33-51	B1	S			6.8	6.7			--		--
40A18754	51-71	B2	S			7.2	6.8			3		--
40A18755	71-107	C1	S			8.2	8.0			18		tr
40A18756	107-157	C2	S			8.1	7.9			8		--
40A18757	157-165	2C	S			8.0	7.7			5		6

---

Miscellaneous Data

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

(- Sat Paste Ex. -)

(- Sand -)

( Water Content )

Bulk

(- - - - Extractable Bases - - - -)

(- - - CEC8 - - -)

CO3+

(- - - pH - - -)

M+C+VC

Moist Sieved

Density

Depth

Ca

Mg

Na

K

NaOAC

BaCl2

Ca+Mg

HCO3

CaCl2

H2O

.25-2

100 kPa

200 kPa

10 kPa

Layer

(cm)

Horz

Prep

(- - - - - - - - - - - - - - - cmol(+)kg-1 - - - - - - - - - - - - - -)

mmol(+)L-1

mmol(-)L-1

1:10

1:10

(- - - - - % of <2mm - - - - -)

g cm-3

NK

40A18751

0-15

A

S

6.8

40A18752

15-33

E

S

7.1

40A18753

33-51

B1

S

7.4

40A18754

51-71

B2

S

7.2

40A18755

71-107

C1

S

8.7

40A18756

107-157

C2

S

8.5

40A18757

157-165

2C

S

8.5