*** Primary Characterization Data ***

Pedon ID: 90CO063002

( Kit Carson, Colorado )

Print Date: Apr 24 2024 7:53PM

Sampled as on Aug 30, 1990:	Richfield ; Fine, montmorillonitic Aridic Argiustolls
Revised to SSL:	(unnamed) ; Fine-silty, mixed, mesic Aridic Argiustoll

				United States Department of Agriculture
SSL	-	Project	CP91CO012   GREELEY COUNTY	Natural Resources Conservation Service
	-	Site ID	S1990CO063002   Lat: 39° 17' 57.00" north  Long: 102° 31' 8.99" west  MLRA: 67B	National Soil Survey Center
	-	Pedon No.	91P0042	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
91P00243	Ap1	Ap1	0-10				SIL	L
91P00244	Ap2	Ap2	10-18				SICL	CL
91P00245	Bt1	Bt1	18-33				SIC	CL
91P00246	Bt2	Bt2	33-49				SICL	CL
91P00247	Bk1	Bk1	49-78				SIL	L
91P00248	Bk2	Bk2	78-130				L	L
91P00249	2Bk	2Bk3	130-140				L	SL
91P00250	3C	3C1	140-150				SCL	SCL
91P00251	Ap1	Ap1	0-10				SIL	L

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.82	(NA)
Clay, carbonate free, Weighted Average	33	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	6	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	33	% wt
LE, Whole Soil, Summed to 1m	0	cm/m
Weighted averages based on control section: 18-49 cm

*** Primary Characterization Data ***

Pedon ID: 90CO063002

( Kit Carson, Colorado )

Print Date: Apr 24 2024 7:53PM

Sampled As	:	Richfield		Fine, montmorillonitic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0042

---

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	3A1a1a	3B1	3B1	3B1
91P00243	0-10	Ap1	S	l	20.2	38.4	41.4	8.8		8.3	30.1	29.2	3.1	5.3	2.8	1.0	tr	tr	--	12
91P00244	10-18	Ap2	S	cl	28.0	37.0	35.0	22.3		8.1	28.9	25.6	2.8	4.4	1.8	0.4	tr	--	--	9
91P00245	18-33	Bt1	S	cl	31.9	39.2	28.9	23.9		12.5	26.7	21.4	2.0	3.4	1.8	0.3	tr	--	--	8
91P00246	33-49	Bt2	S	cl	34.8	43.9	21.3	11.6		18.8	25.1	16.2	1.4	2.2	1.2	0.3	tr	--	--	5
91P00247	49-78	Bk1	S	l	25.4	41.9	32.7	5.6	0.3	14.4	27.5	24.7	2.1	3.4	1.9	0.6	--	--	--	8
91P00248	78-130	Bk2	S	l	17.8	39.5	42.7		0.9	12.5	27.0	28.4	3.1	6.7	3.6	0.9	--	--	--	14
91P00249	130-140	2Bk	S	sl	16.1	21.6	62.3		1.2	7.0	14.6	19.8	8.6	17.8	11.9	4.2	3	2	1	46	6
91P00250	140-150	3C	S	scl	20.1	7.5	72.4			3.6	3.9	9.8	16.1	21.7	17.8	7.0	3	1	--	64	4
91P00251	0-10	Ap1	S	l	20.9	35.7	43.4			9.1	26.6	29.6	3.4	5.4	3.4	1.6	1	1	--	16	2

---

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		4C1	3F1a1a	8D1	8D1
91P00243	0-10	Ap1	S	1.36	1.47	0.026			25.8	9.9		1.020		0.22	6	0.90	0.49
91P00244	10-18	Ap2	S	1.33	1.55	0.052			27.7	13.5		1.028		0.19	31	0.82	0.48
91P00245	18-33	Bt1	S	1.37	1.65	0.064			26.2	16.9		1.033		0.13		0.84	0.53
91P00246	33-49	Bt2	S	1.34	1.64	0.070			29.1	18.4		1.036		0.14		0.79	0.53
91P00247	49-78	Bk1	S	1.32	1.48	0.039			26.3	12.6		1.027		0.18		0.84	0.50
91P00248	78-130	Bk2	S	1.51	1.57	0.013			19.3	8.4		1.019		0.16		0.87	0.47
91P00249	130-140	2Bk	S	1.52	1.57	0.010			15.9	6.9		1.015		0.13		0.68	0.43
91P00250	140-150	3C	S	1.64	1.81	0.032			16.6	9.1		1.017		0.12		0.68	0.45
91P00251	0-10	Ap1	S							10.8		1.020				0.81	0.52

*** Primary Characterization Data ***

Pedon ID: 90CO063002

( Kit Carson, Colorado )

Print Date: Apr 24 2024 7:53PM

Sampled As	:	Richfield		Fine, montmorillonitic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0042

---

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 - - - - -)

6B3a

6A1c

91P00243

0-10

Ap1

S

0.090

1.02

91P00244

10-18

Ap2

S

0.074

0.72

91P00245

18-33

Bt1

S

0.080

0.80

91P00246

33-49

Bt2

S

0.072

0.67

91P00247

49-78

Bk1

S

0.29

91P00248

78-130

Bk2

S

0.14

91P00249

130-140

2Bk

S

0.06

91P00250

140-150

3C

S

0.02

91P00251

0-10

Ap1

S

0.082

0.91

---

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		6H5a				5A8b			5C3	5C1
91P00243	0-10	Ap1	S	21.6*	2.7	tr	1.3		0.1				18.2			100	100
91P00244	10-18	Ap2	S	19.1*	4.7	0.1	0.9		0.5				23.0			98	100
91P00245	18-33	Bt1	S	20.2*	6.9	0.1	0.9		1.6				26.9			95	100
91P00246	33-49	Bt2	S	40.0*	8.3	0.1	1.0		--				27.6			100	100
91P00247	49-78	Bk1	S	44.4*	7.6	0.4	1.0						21.4			100	100
91P00248	78-130	Bk2	S	41.3*	5.6	0.7	0.8						15.4			100	100
91P00249	130-140	2Bk	S	35.8*	4.2	0.6	0.6						11.0			100	100
91P00250	140-150	3C	S	38.6*	5.6	0.8	0.7						13.7			100	100
91P00251	0-10	Ap1	S	14.7*	2.6	tr	1.0		0.1				16.9			99	100

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

*** Primary Characterization Data ***

Pedon ID: 90CO063002

( Kit Carson, Colorado )

Print Date: Apr 24 2024 7:53PM

Sampled As	:	Richfield		Fine, montmorillonitic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0042

---

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	6I1b	6J1b	6U1a	6K1c				6L1c	6W1a	6M1c	8A	8D5	8A3a	4F1a1a1		5E
91P00243	0-10	Ap1	S																		0.24	--
91P00244	10-18	Ap2	S																		0.18	tr
91P00245	18-33	Bt1	S																		0.15	tr
91P00246	33-49	Bt2	S																		0.21	tr
91P00247	49-78	Bk1	S																		0.20	2
91P00248	78-130	Bk2	S	2.5	1.4	3.5	0.4	--	3.3	0.2	1.6				2.5	--	--	41.4	tr	0.80	0.28	4	3
91P00249	130-140	2Bk	S	2.1	1.0	4.2	0.4	--	3.2	0.2	1.6				2.5	--	--	32.9	tr	0.80	0.26	4	3
91P00250	140-150	3C	S	2.3	1.1	4.5	0.4	--	2.9	0.3	2.2				2.7	--	--	38.6	tr	0.86	0.29	5	3
91P00251	0-10	Ap1	S																		0.21	--

---

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	4C1a2a	8C1b			6E1g				8E1
91P00243	0-10	Ap1	S		7.5	8.0				tr
91P00244	10-18	Ap2	S		7.4	8.1				tr
91P00245	18-33	Bt1	S		7.3	8.0				tr
91P00246	33-49	Bt2	S		7.5	8.1				1
91P00247	49-78	Bk1	S		7.7	8.3				4
91P00248	78-130	Bk2	S		7.8	8.4	7.9			8				1900
91P00249	130-140	2Bk	S		7.8	8.4	7.9			8
91P00250	140-150	3C	S		7.8	8.4	7.9			7
91P00251	0-10	Ap1	S		7.2	7.9				tr

*** Primary Characterization Data ***

Pedon ID: 90CO063002

( Kit Carson, Colorado )

Print Date: Apr 24 2024 7:53PM

Sampled As	:	Richfield		Fine, montmorillonitic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0042

---

Phosphorus

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

(- - - - - - - - - - - - - - - - - - - - - - - Phosphorus - - - - - - - - - - - - - - - - - - - - -)

KCl

Melanic

NZ

Acid

Anion Exch Resin

Bray

Bray

Olsen

H2O

Citric

Mehlich

Extr

Depth

Index

Oxal

Available

Capacity

1

2

Acid

III

NO3

Layer

(cm)

Horz

Prep

%

(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)

6S3

91P00243

0-10

Ap1

S

12.0

91P00244

10-18

Ap2

S

4.0

91P00245

18-33

Bt1

S

2.0

91P00246

33-49

Bt2

S

3.0

91P00247

49-78

Bk1

S

5.0

*** Primary Characterization Data ***

Pedon ID: 90CO063002

( Kit Carson, Colorado )

Print Date: Apr 24 2024 7:53PM

Sampled As	:	Richfield		Fine, montmorillonitic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0042

---

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

&nbsp;

&nbsp;

7C3

&nbsp;

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

91P00243

0.0-10.0

Ap1

tcly

MT 4

MI 3

KK 2

MM 2

QZ 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

19

7.9

&nbsp;

&nbsp;

3.3

&nbsp;

&nbsp;

&nbsp;

91P00245

18.0-33.0

Bt1

tcly

MT 4

MI 3

KK 2

QZ 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

20

7.7

&nbsp;

&nbsp;

2.6

&nbsp;

&nbsp;

&nbsp;

91P00247

49.0-78.0

Bk1

tcly

MT 4

KK 2

MI 2

CA 1

MM 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

18

6.7

&nbsp;

&nbsp;

2.2

&nbsp;

&nbsp;

&nbsp;

QZ 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

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

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

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: 90CO063002

( Kit Carson, Colorado )

Print Date: Apr 24 2024 7:53PM

Sampled As	:	Richfield		Fine, montmorillonitic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0042

---

Sand - Silt Mineralogy (2.0-0.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Optical

EGME

Inter

Tot Re

Grain Count

Retn

preta

Depth

Fract

 

 

 

7B1a2

 

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

91P00245

18.0-33.0

Bt1

vfs

 

 

 

 

 

 

 

 

 

54

QZ 40

FD 33

QC 14

FP 4

BT 2

HN 2

 

 

 

 

 

 

 

 

 

 

 

MS 2

PR 1

AM 1

TM tr

PO tr

OP tr

 

 

 

 

 

 

 

 

 

 

KK tr

CA tr

GN tr

ID tr

GS tr

ZR tr

 

91P00246

33.0-49.0

Bt2

vfs

 

 

 

 

 

 

 

 

 

76

QZ 62

FD 18

QC 12

BT 2

FP 2

OP 2

 

 

 

 

 

 

 

 

 

 

 

PR 1

MS 1

GN tr

AM tr

ZR tr

HY tr

 

 

 

 

 

 

 

 

 

 

TM tr

HN tr

KK tr

AU tr

GS tr

 

 

FRACTION INTERPRETATION:
vfs - Very Fine Sand 0.05-0.1 mm	 	 	 	 

MINERAL INTERPRETATION:
AM Amphibole	AU Augite	BT Biotite	CA Calcite	FD Feldspar
FP Plagioclase Feldspar	GN Garnet	GS Glass	HN Hornblende	HY Hypersthene
ID Iddingsite	KK Kaolinite	MS Muscovite	OP Opaques	PO Plant Opal
PR Pyroxene	QC Clay-Coated Quartz	QZ Quartz	TM Tourmaline	ZR Zircon