*** Primary Characterization Data ***

Pedon ID: 1969IL001007

( Adams, Illinois )

Print Date: Dec 8 2025 5:07PM

Sampled as on Nov 29, 1969:	Silty Clay
Revised to correlated:	Karnak ; Fine, smectitic, nonacid, mesic Vertic Endoaquepts

				State of Illinois
SSL	-	Project	IL200806   University of Illinois, Soil Characterization Data Book #05	University of Illinois
	-	Site ID	1969IL001007   Lat: 40° 11' 53.39" north  Long: 91° 27' 10.19" west  MLRA: 115C	Soil Characterization Laboratory
	-	Pedon No.	69IL001007	Department of Natural Resources and Environmental Science
	-	General Methods 1B1A, 2A1, 2B		Urbana, Illinois

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Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
IL21860	Ap	Ap	0-23					SIC
IL21861	A1	A1	23-43					SIC
IL21862	A3	A3	43-64					SIC
IL21863	Bg	Bg	64-99					SIC
IL21864	Cg	Cg	99-152					SIC

---

---

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
IL21860	0-23	Ap	S	sic	49.0	46.0	3.0	28.0		33.0	13.0
IL21861	23-43	A1	S	sic	50.0	47.0	2.0	29.0		34.0	13.0
IL21862	43-64	A3	S	sic	47.0	49.0	3.0	29.0		33.0	15.0
IL21863	64-99	Bg	S	sic	44.0	51.0	3.0	29.0		33.0	18.0
IL21864	99-152	Cg	S	sic	45.0	51.0	2.0	26.0		35.0	15.0

*** Primary Characterization Data ***

Pedon ID: 1969IL001007

( Adams, Illinois )

Print Date: Dec 8 2025 5:07PM

Sampled As	:	Silty Clay
University of Illinois Soil Survey Laboratory			;	Pedon No.  69IL001007

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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 - - - - -)

6A1a

IL21860

0-23

Ap

S

0.58

IL21861

23-43

A1

S

0.40

IL21862

43-64

A3

S

0.52

IL21863

64-99

Bg

S

0.69

IL21864

99-152

Cg

S

0.40

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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

IL21860

0-23

Ap

S

6.8

IL21861

23-43

A1

S

7.3

IL21862

43-64

A3

S

7.2

IL21863

64-99

Bg

S

7.2

IL21864

99-152

Cg

S

7.0