*** Primary Characterization Data ***

Pedon ID: 1977IL157012

( Randolph, Illinois )

Print Date: Apr 24 2025 2:31PM

Sampled as on Jul 30, 1977:	Okaw
Revised to correlated:	Okaw ; Fine, smectitic, mesic Chromic Vertic Albaqualfs

				State of Illinois
SSL	-	Project	IL200808   University of Illinois, Soil Characterization Data Book #07	University of Illinois
	-	Site ID	1977IL157012   Lat: 38° 7' 38.95" north  Long: 89° 55' 7.85" west  MLRA: 114B	Soil Characterization Laboratory
	-	Pedon No.	77IL157012	Department of Natural Resources and Environmental Science
	-	General Methods 1B1A, 2A1, 2B		Urbana, Illinois

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
IL25211	A1	A1	0-10					SIL
IL25212	A2	A2	10-33					SIL
IL25213	B21t	B21t	33-41					SICL
IL25214	B22t	B22t	41-51					C
IL25215	B23t	B23t	51-74					C
IL25216	B24t	B24t	74-94					SIC
IL25217	B3t	B3t	94-117					SIC
IL25218	C1	C1	117-157					SICL

---

---

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
IL25211	0-10	A1	S	sil	15.0	62.0	22.0					12.0	8.0	1.0	--	--
IL25212	10-33	A2	S	sil	16.0	60.0	23.0					13.0	5.0	1.0	2.0	1.0
IL25213	33-41	B21t	S	sicl	38.0	43.0	17.0					9.0	6.0	1.0	--	--
IL25214	41-51	B22t	S	c	58.0	29.0	12.0
IL25215	51-74	B23t	S	c	55.0	35.0	8.0
IL25216	74-94	B24t	S	sic	50.0	41.0	7.0
IL25217	94-117	B3t	S	sic	44.0	48.0	6.0
IL25218	117-157	C1	S	sicl	39.0	52.0	8.0

*** Primary Characterization Data ***

Pedon ID: 1977IL157012

( Randolph, Illinois )

Print Date: Apr 24 2025 2:31PM

Sampled As	:	Okaw
University of Illinois Soil Survey Laboratory			;	Pedon No.  77IL157012

---

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

%

IL25211

0-10

A1

S

0.61

IL25212

10-33

A2

S

0.58

IL25213

33-41

B21t

S

0.66

IL25214

41-51

B22t

S

0.64

IL25215

51-74

B23t

S

0.76

IL25216

74-94

B24t

S

0.71

IL25217

94-117

B3t

S

0.69

IL25218

117-157

C1

S

0.65

---

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

IL25211

0-10

A1

S

1.96

IL25212

10-33

A2

S

--

IL25213

33-41

B21t

S

--

IL25214

41-51

B22t

S

--

IL25215

51-74

B23t

S

--

IL25216

74-94

B24t

S

--

IL25217

94-117

B3t

S

--

IL25218

117-157

C1

S

--

*** Primary Characterization Data ***

Pedon ID: 1977IL157012

( Randolph, Illinois )

Print Date: Apr 24 2025 2:31PM

Sampled As	:	Okaw
University of Illinois Soil Survey Laboratory			;	Pedon No.  77IL157012

---

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 - - -)

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

5A1a

IL25211

0-10

A1

S

9.2

IL25212

10-33

A2

S

9.3

IL25213

33-41

B21t

S

25.2

IL25214

41-51

B22t

S

37.3

IL25215

51-74

B23t

S

41.9

IL25216

74-94

B24t

S

35.6

IL25217

94-117

B3t

S

30.5

IL25218

117-157

C1

S

25.4

---

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

IL25211

0-10

A1

S

5.7

IL25212

10-33

A2

S

4.8

IL25213

33-41

B21t

S

4.8

IL25214

41-51

B22t

S

4.8

IL25215

51-74

B23t

S

4.6

IL25216

74-94

B24t

S

4.9

IL25217

94-117

B3t

S

6.6

IL25218

117-157

C1

S

7.1