*** Primary Characterization Data ***

Pedon ID: 78SD053010

( Gregory, South Dakota )

Print Date: Apr 24 2024 2:16PM

Sampled as on Jun 1, 1978:	Lakoma ; Fine, montmorillonitic, mesic Typic Ustochrept
Revised to correlated:	Lakoma ; Fine, mixed, mesic Typic Ustochrepts

				United States Department of Agriculture
SSL	-	Project	CP78SD136   GREGORY COUNTY	Natural Resources Conservation Service
	-	Site ID	S1978SD053010   Lat: 43° 23' 40.00" north  Long: 99° 12' 28.00" west  MLRA: 63B	National Soil Survey Center
	-	Pedon No.	78P0363	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
78P01975	A	A1	0-5				SIC	C
78P01976	B1	B2	5-25				C	C
78P01977	B2	B3	25-43				C	C
78P01978	C	C1	43-74				C	C
78P01979	Cr1	CR1	74-109					SICL
78P01980	Cr2	CR2	109-140					SIC
78P01981	A	A1	0-5				SIC	C
78P01982	B1	B2	5-25				C	C
78P01983	C	C1	43-74				C	C

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.46	(NA)
Clay, carbonate free, Weighted Average	59	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	75	% wt
Volume, >2mm, Weighted Average	58	% vol
Clay, total, Weighted Average	66	% wt
Weighted averages based on control section: 25-74 cm

*** Primary Characterization Data ***

Pedon ID: 78SD053010

( Gregory, South Dakota )

Print Date: Apr 24 2024 2:16PM

Sampled As	:	Lakoma		Fine, montmorillonitic, mesic Typic Ustochrept
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  78P0363

---

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	3A1a1a	3B1	3B1	3B1
78P01975	0-5	A	S	c	67.8	30.6	1.6		0.8	25.8	4.8	0.8	0.4	0.2	0.2	--	tr	--	--	1	tr
78P01976	5-25	B1	S	c	70.3	29.0	0.7		3.3	29.0	--	0.3	0.2	0.1	0.1	tr	56	--	--	56	56
78P01977	25-43	B2	S	c	68.7	30.7	0.6		8.7	29.5	1.2	0.3	0.2	tr	0.1	tr	29	55	--	84	84
78P01978	43-74	C	S	c	65.2	33.3	1.5		7.4	32.4	0.9	0.7	0.5	0.2	0.1	tr	26	43	--	69	69
78P01979	74-109	Cr1	S	sicl	31.5	62.0	6.5		5.0	62.0	--	1.5	2.3	1.1	1.3	0.3	11	50	32	93	93
78P01980	109-140	Cr2	S	sic	44.6	50.0	5.4		4.3	48.3	1.7	1.8	1.6	0.7	1.0	0.3	tr	--	--	4	--
78P01981	0-5	A	S	c	65.5	32.3	2.2			26.0	6.3	0.8	0.4	0.2	0.3	0.5	--	--	--	1	--
78P01982	5-25	B1	S	c	66.7	32.0	1.3			28.5	3.5	0.4	0.3	0.1	0.3	0.2	42	49	--	91	91
78P01983	43-74	C	S	c	63.0	34.6	2.4		8.0	34.6	--	1.0	0.8	0.2	0.3	0.1	21	66	--	87	87

---

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	%
				4A1d	4A1h				4B1c	3C2a1a		3D1	4E2a1a1a1	4C1		8D1	8D1
78P01975	0-5	A	S	1.16	1.36	0.054			24.5	24.7		1.062		--		0.58	0.36
78P01976	5-25	B1	S							23.8		1.059				0.47	0.34
78P01977	25-43	B2	S	1.27	1.56	0.019			32.9	22.4		1.049		0.04		0.40	0.33
78P01978	43-74	C	S	1.23	1.52	0.034			37.4	21.8			1.046	0.09		0.40	0.33
78P01979	74-109	Cr1	S							23.0			1.079			0.83	0.73
78P01980	109-140	Cr2	S							23.7			1.074			0.57	0.53
78P01981	0-5	A	S							26.0		1.062				0.63	0.40
78P01982	5-25	B1	S							23.1		1.053				0.52	0.35
78P01983	43-74	C	S							22.1		1.044				0.42	0.35

*** Primary Characterization Data ***

Pedon ID: 78SD053010

( Gregory, South Dakota )

Print Date: Apr 24 2024 2:16PM

Sampled As	:	Lakoma		Fine, montmorillonitic, mesic Typic Ustochrept
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  78P0363

---

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 - - - - -)
					6B1b			6A1c
78P01975	0-5	A	S		0.292			3.33	11
78P01976	5-25	B1	S		0.129			1.16	9
78P01977	25-43	B2	S		0.089			0.73	8
78P01978	43-74	C	S		0.080			0.48	6
78P01979	74-109	Cr1	S					0.33
78P01980	109-140	Cr2	S					0.27
78P01981	0-5	A	S		0.359			4.07	11
78P01982	5-25	B1	S		0.171			1.71	10
78P01983	43-74	C	S		0.081			0.54	7

---

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						5A8a			5C3	5C1
78P01975	0-5	A	S	57.2*	2.2	--	1.4						39.2			100	100
78P01976	5-25	B1	S	61.5*	1.2	--	0.8						33.1			100	100
78P01977	25-43	B2	S	64.0*	0.8	--	0.8						27.8			100	100
78P01978	43-74	C	S	67.0*	0.5	--	0.7						26.4			100	100
78P01979	74-109	Cr1	S		0.4	tr	0.8						26.0			100
78P01980	109-140	Cr2	S		1.0	tr	0.9						25.4			100
78P01981	0-5	A	S	57.5*	2.3	--	1.6						41.5			100	100
78P01982	5-25	B1	S	60.4*	1.3	--	0.9						34.5			100	100
78P01983	43-74	C	S	64.1*	0.7	--	0.7						26.2			100	100

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

*** Primary Characterization Data ***

Pedon ID: 78SD053010

( Gregory, South Dakota )

Print Date: Apr 24 2024 2:16PM

Sampled As	:	Lakoma		Fine, montmorillonitic, mesic Typic Ustochrept
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  78P0363

---

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 - -)		%
				6N1b	6O1b	6P1b	6Q1b		6J1b		6K1c				6L1c			8A	8D5	8A1a			5E
78P01975	0-5	A	S	9.3	0.8	0.1	0.6		8.3		0.4				2.3			91.1	tr	0.96		--	--
78P01976	5-25	B1	S	6.2	0.3	0.1	0.4		5.2		0.2				1.5			96.7	tr	0.65		--	tr
78P01977	25-43	B2	S	4.0	0.2	0.1	0.3		3.5		0.2				1.2			94.1	tr	0.46		--	tr
78P01978	43-74	C	S	30.6	0.6	0.2	0.6		2.1		1.0				29.8			87.1	0.1	2.31		--	tr
78P01979	74-109	Cr1	S	30.1	0.3	0.3	0.6		1.1		0.9				29.8			89.9	0.1	2.27		--	tr
78P01980	109-140	Cr2	S	31.0	0.8	0.3	0.6		0.8		0.9				30.2			89.9	0.1	2.30		--	tr
78P01981	0-5	A	S	10.3	0.8	0.1	0.7		9.6		0.4				1.9			102.7	0.1	1.05		--	--
78P01982	5-25	B1	S	8.9	0.5	0.1	0.4		6.8		0.2				1.1			98.3	tr	0.88		--	--
78P01983	43-74	C	S	5.3	0.2	0.1	0.3		2.4		0.3				1.1			90.0	tr	0.59		--	tr

---

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
					8C1e	8C1a	8C1b			6E1b		6F1c		8E1
78P01975	0-5	A	S		7.4	7.8	7.0			1		--
78P01976	5-25	B1	S		7.8	8.1	7.1			5		--
78P01977	25-43	B2	S		7.7	8.2	7.3			15		--
78P01978	43-74	C	S		7.8	7.9	7.2			18		1		650
78P01979	74-109	Cr1	S		7.7	7.9	7.5			7		12		690
78P01980	109-140	Cr2	S		7.7	7.7	7.5			10		12
78P01981	0-5	A	S		7.4	8.0	6.8			1		--
78P01982	5-25	B1	S		7.6	8.1	7.0			5		--
78P01983	43-74	C	S		7.8	8.1	7.4			18		--		1400

*** Primary Characterization Data ***

Pedon ID: 78SD053010

( Gregory, South Dakota )

Print Date: Apr 24 2024 2:16PM

Sampled As	:	Lakoma		Fine, montmorillonitic, mesic Typic Ustochrept
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  78P0363

---

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

78P01975

0-5

A

S

8.2

78P01976

5-25

B1

S

8.6

78P01977

25-43

B2

S

8.6

78P01978

43-74

C

S

8.3

78P01979

74-109

Cr1

S

7.9

78P01980

109-140

Cr2

S

7.9

78P01981

0-5

A

S

8.2

78P01982

5-25

B1

S

8.5

78P01983

43-74

C

S

8.6

*** Primary Characterization Data ***

Pedon ID: 78SD053010

( Gregory, South Dakota )

Print Date: Apr 24 2024 2:16PM

Sampled As	:	Lakoma		Fine, montmorillonitic, mesic Typic Ustochrept
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  78P0363

---

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

7A2i

7A3b

&nbsp;

7C3

&nbsp;

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

78P01978

43.0-74.0

C

tcly

MT 3

MI 2

KK 2

CA 2

QZ 1

KK 26

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

8.7

&nbsp;

&nbsp;

3.2

&nbsp;

&nbsp;

&nbsp;

78P01983

43.0-74.0

C

tcly

MT 3

CA 3

MI 2

KK 2

QZ 2

KK 20

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

7.7

&nbsp;

&nbsp;

2.9

&nbsp;

&nbsp;

&nbsp;

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm	&nbsp;	&nbsp;	&nbsp;	&nbsp;

MINERAL INTERPRETATION:
CA Calcite	KK Kaolinite	MI Mica	MT Montmorillonite	QZ Quartz

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks