*** Primary Characterization Data ***

Pedon ID: S1961IA107001

( Keokuk, Iowa )

Print Date: Nov 24 2024 1:07AM

Sampled as on Sep 30, 1961:	Mahaska
Revised to correlated on Dec 7, 2014:	Mahaska ; Fine, smectitic, mesic Aquertic Argiudolls

				United States Department of Agriculture
SSL	-	Project	NL40001   SSIR SAMPLES	Soil Conservation Service
	-	Site ID	S1961IA107001   Lat: 41° 26' 11.00" north  Long: 91° 59' 37.01" west  MLRA: 108	Lincoln Soil Survey Laboratory
	-	Pedon No.	40A1421	Soil Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
40A10961	Ap	Ap	0-18	16273				SICL
40A10962	A1	A12	18-33	16274				SICL
40A10963	A2	A3	33-46	16275				SICL
40A10964	B1	B1	46-61	16276				SICL
40A10965	B21	B21	61-76	16277				SIC
40A10966	B22	B22	76-102	16278				SICL
40A10967	B31	B31	102-130	16279				SICL
40A10968	B32	B32	130-155	16280				SICL
40A10969	C1	C 1	155-185	16281				SICL
40A10970	C2	C 2	185-198	16282				SICL
40A10971	C3	C 3	198-229	16283				SIL
40A10972			229-320
40A10973			320-0

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.75	(NA)
Clay, carbonate free, Weighted Average	39	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	2	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	39	% wt
Weighted averages based on control section: 43-93 cm

*** Primary Characterization Data ***

Pedon ID: S1961IA107001

( Keokuk, Iowa )

Print Date: Nov 24 2024 1:07AM

Sampled As	:	Mahaska
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A1421

---

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
40A10961	0-18	Ap	S	sicl	29.9	67.5	2.6			40.7	26.8	0.7	0.6	0.6	0.5	0.2	--	--	--	2	--
40A10962	18-33	A1	S	sicl	33.2	64.3	2.5			40.3	24.0	0.5	0.6	0.7	0.4	0.3	--	--	--	2	--
40A10963	33-46	A2	S	sicl	36.2	60.5	3.3			37.8	22.7	0.5	0.5	0.5	0.9	0.9	--	--	--	3	--
40A10964	46-61	B1	S	sicl	39.6	57.8	2.6			36.5	21.3	0.6	0.4	0.4	0.8	0.4	--	--	--	2	--
40A10965	61-76	B21	S	sic	41.9	56.3	1.8			34.6	21.7	0.8	0.4	0.3	0.2	0.1	--	--	--	1	--
40A10966	76-102	B22	S	sicl	36.4	61.1	2.5			33.2	27.9	0.9	0.4	0.4	0.6	0.2	--	--	--	2	--
40A10967	102-130	B31	S	sicl	33.5	65.2	1.3			34.1	31.1	0.6	0.2	0.2	0.2	0.1	--	--	--	1	--
40A10968	130-155	B32	S	sicl	31.5	67.4	1.1			34.9	32.5	0.7	0.2	0.1	tr	0.1	--	--	--	tr	--
40A10969	155-185	C1	S	sicl	30.0	68.5	1.5			32.6	35.9	0.7	0.4	0.2	0.2	tr	--	--	--	1	--
40A10970	185-198	C2	S	sicl	27.0	69.9	3.1			36.6	33.3	1.5	0.7	0.3	0.4	0.2	--	--	--	2	--
40A10971	198-229	C3	S	sil	23.0	75.6	1.4			39.6	36.0	1.1	0.2	0.1	tr	--	--	--	--	tr	--

---

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	%
					4A1h				4B1b	3C2a1a
40A10961	0-18	Ap	S		1.56				25.5	13.5				0.17		0.85	0.45
40A10962	18-33	A1	S		1.40				29.0	14.4				0.21		0.76	0.43
40A10963	33-46	A2	S							16.2						0.72	0.45
40A10964	46-61	B1	S		1.58				29.8	17.3				0.18		0.71	0.44
40A10965	61-76	B21	S							19.3						0.74	0.46
40A10966	76-102	B22	S		1.66				30.4	17.3				0.19		0.79	0.48
40A10967	102-130	B31	S							16.2						0.76	0.48
40A10968	130-155	B32	S							15.1						0.79	0.48
40A10969	155-185	C1	S		1.56				32.2	12.6				0.28		0.69	0.42
40A10970	185-198	C2	S							16.4						0.68	0.61
40A10971	198-229	C3	S		1.63				29.3	11.2				0.26		0.79	0.49

*** Primary Characterization Data ***

Pedon ID: S1961IA107001

( Keokuk, Iowa )

Print Date: Nov 24 2024 1:07AM

Sampled As	:	Mahaska
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A1421

---

Water Content				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-
				(- - Atterberg - -)		(- - - - - Bulk Density - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - Water Content - - - - - - - - - - - - - - - - - - - - -)
				(- - - Limits - - -)		Field	Recon	Recon	Field	Recon	(- - - - - - - - - - - - - - Sieved Samples - - - - - - - - - - - - -)
				LL	PI		33	Oven		33	6	10	33	100	200	500
	Depth						kPa	Dry		kPa	kPa	kPa	kPa	kPa	kPa	kPa
Layer	(cm)	Horz	Prep	pct <0.4mm		(- - - - - - - - g cm-3 - - - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - - - - - - -)
						3B1a			4B4
40A10961	0-18	Ap	CLODDB			1.44			24.8
40A10962	18-33	A1	CLODDB			1.31			26.9
40A10964	46-61	B1	CLODDB			1.36			25.6
40A10966	76-102	B22	CLODDB			1.45			25.3
40A10969	155-185	C1	CLODDB			1.45			28.2
40A10971	198-229	C3	CLODDB			1.52			25.0

---

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 - - - - -)
					6B1a			6A1a		6C1a
40A10961	0-18	Ap	S		0.208			2.66	13	0.9
40A10962	18-33	A1	S		0.164			2.03	12	0.9
40A10963	33-46	A2	S		0.124			1.30	10	1.0
40A10964	46-61	B1	S		0.106			0.96	9	1.0
40A10965	61-76	B21	S		0.067			0.51	8	1.0
40A10966	76-102	B22	S					0.31		1.0
40A10967	102-130	B31	S					0.14		1.0
40A10968	130-155	B32	S					0.10		0.9
40A10969	155-185	C1	S					0.09		0.8
40A10970	185-198	C2	S					0.08		6.7
40A10971	198-229	C3	S					0.06		0.6

*** Primary Characterization Data ***

Pedon ID: S1961IA107001

( Keokuk, Iowa )

Print Date: Nov 24 2024 1:07AM

Sampled As	:	Mahaska
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A1421

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2b	6O2b	6P2a	6Q2a		6H1a	6G1a			5A1a
40A10961	0-18	Ap	S	18.0	4.6	tr	0.4	23.0	10.0	--		33.0	25.4			70	91
40A10962	18-33	A1	S	13.7	4.9	tr	0.5	19.1	13.8	0.1		32.9	25.3	19.2	1	58	75
40A10963	33-46	A2	S	14.5	7.2	0.1	0.6	22.4	12.2	0.1		34.6	26.0	22.5	tr	65	86
40A10964	46-61	B1	S	15.9	7.8	0.1	0.6	24.4	11.0	0.4		35.4	28.2	24.8	2	69	87
40A10965	61-76	B21	S	18.1	9.2	0.1	0.7	28.1	10.4	0.4		38.5	31.1	28.5	1	73	90
40A10966	76-102	B22	S	16.8	9.4	0.1	0.7	27.0	7.8	0.1		34.8	28.8	27.1	tr	78	94
40A10967	102-130	B31	S	16.4*	8.6	0.2	0.5	25.7	4.5	0.1		30.2	25.4	25.8	tr	85	100
40A10968	130-155	B32	S	16.2*	8.5	0.2	0.5		3.0				24.9			89	100
40A10969	155-185	C1	S			0.2	0.5		1.9				20.8			27
40A10970	185-198	C2	S			0.1	0.4		2.4				18.4			17
40A10971	198-229	C3	S			0.1	0.4		1.6				18.1			24

^*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 - -)

%

40A10961

0-18

Ap

S

--

40A10962

18-33

A1

S

--

40A10963

33-46

A2

S

tr

40A10964

46-61

B1

S

tr

40A10965

61-76

B21

S

tr

40A10966

76-102

B22

S

tr

40A10967

102-130

B31

S

1

40A10968

130-155

B32

S

1

40A10969

155-185

C1

S

1

40A10970

185-198

C2

S

1

40A10971

198-229

C3

S

1

*** Primary Characterization Data ***

Pedon ID: S1961IA107001

( Keokuk, Iowa )

Print Date: Nov 24 2024 1:07AM

Sampled As	:	Mahaska
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A1421

---

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

8C1a

6E1a

40A10961

0-18

Ap

S

5.6

40A10962

18-33

A1

S

5.0

40A10963

33-46

A2

S

4.8

40A10964

46-61

B1

S

4.8

40A10965

61-76

B21

S

4.8

40A10966

76-102

B22

S

5.2

40A10967

102-130

B31

S

6.0

40A10968

130-155

B32

S

6.5

--

40A10969

155-185

C1

S

7.1

2

40A10970

185-198

C2

S

7.2

3

40A10971

198-229

C3

S

7.5

9