*** Primary Characterization Data ***

Pedon ID: 90CO075001

( Logan, Colorado )

Print Date: Nov 23 2024 11:16PM

Sampled as on Aug 30, 1990:	Weld ; Fine-silty, mixed, mesic 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	S1990CO075001   Lat: 40° 27' 34.97" north  Long: 103° 1' 44.86" west  MLRA: 72	National Soil Survey Center
	-	Pedon No.	91P0044	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
91P00260	Ap	Ap	0-8				L	L
91P00261	Bt1	Bt1	8-20				SICL	CL
91P00262	Bt2	Bt2	20-30				SICL	CL
91P00263	Bt3	Bt3	30-51				SICL	CL
91P00264	Bk1	Bk1	51-69				SIL	L
91P00265	Bk2	Bk2	69-85				SIL	L
91P00266			85-141		LIME		L	L
91P00267	2Bk1	2Bk3	85-141				L	CL
91P00268	2Bk2	2Bk4	141-150				L	L
91P00269	Ap	Ap	0-8				L	L

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.84	(NA)
Clay, carbonate free, Weighted Average	31	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	9	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	31	% wt
LE, Whole Soil, Summed to 1m	0	cm/m
Weighted averages based on control section: 8-51 cm

*** Primary Characterization Data ***

Pedon ID: 90CO075001

( Logan, Colorado )

Print Date: Nov 23 2024 11:16PM

Sampled As	:	Weld		Fine-silty, mixed, mesic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0044

---

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
91P00260	0-8	Ap	S	l	20.8	34.2	45.0	12.5		12.7	21.5	26.3	11.0	4.4	2.3	1.0	1	1	--	20	2
91P00261	8-20	Bt1	S	cl	30.8	35.8	33.4	21.7		13.6	22.2	20.2	8.4	3.1	1.3	0.4	1	tr	--	14	1
91P00262	20-30	Bt2	S	cl	38.1	37.4	24.5	24.3		15.8	21.6	16.4	5.7	1.4	0.8	0.2	1	tr	--	9	1
91P00263	30-51	Bt3	S	cl	27.0	45.6	27.4	6.9		19.6	26.0	21.8	4.5	0.7	0.3	0.1	tr	tr	--	6
91P00264	51-69	Bk1	S	l	22.1	47.4	30.5	4.4	4.7	21.1	26.3	25.4	4.0	0.7	0.2	0.2	--	--	--	5
91P00265	69-85	Bk2	S	l	20.7	35.9	43.4		4.3	14.4	21.5	27.1	9.3	3.7	2.4	0.9	2	1	--	19	3
91P00266	85-141		S	l	25.4	43.5	31.1		10.4	37.8	5.7	7.3	5.5	7.2	4.9	6.2	16	6	--	41	22
91P00267	85-141	2Bk1	S	cl	32.4	22.6	45.0		4.7	13.2	9.4	14.1	8.0	10.5	7.3	5.1	15	5	--	45	20
91P00268	141-150	2Bk2	S	l	23.0	39.8	37.2		8.9	32.5	7.3	16.4	10.0	6.5	2.4	1.9	2	1	--	23	3
91P00269	0-8	Ap	S	l	19.4	35.8	44.8			13.1	22.7	24.2	12.0	5.1	2.6	0.9	1	tr	--	21	1

---

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	4B1c	3C2a1a		3D1		4C1		8D1	8D1
91P00260	0-8	Ap	S	1.37	1.52	0.035		24.5	20.5	9.5		1.018		0.15		0.68	0.46
91P00261	8-20	Bt1	S	1.35	1.60	0.058		31.0	27.7	13.4		1.024		0.19		0.69	0.44
91P00262	20-30	Bt2	S	1.23	1.58	0.087		36.9	33.7	18.3		1.035		0.19		0.76	0.48
91P00263	30-51	Bt3	S	1.21	1.39	0.047		37.5	30.0	14.5		1.029		0.19		0.96	0.54
91P00264	51-69	Bk1	S	1.31	1.40	0.022		36.3	31.0	13.2		1.023		0.23		0.93	0.60
91P00265	69-85	Bk2	S	1.34	1.51	0.040		34.9	29.7	10.2		1.019		0.26		0.81	0.49
91P00266	85-141		S	1.35	1.59	0.049		28.5	24.7	9.6		1.013		0.18		0.34	0.38
91P00267	85-141	2Bk1	S					29.6		13.1		1.023				0.53	0.40
91P00268	141-150	2Bk2	S							8.5		1.014				0.48	0.37
91P00269	0-8	Ap	S							8.9		1.016				0.72	0.46

*** Primary Characterization Data ***

Pedon ID: 90CO075001

( Logan, Colorado )

Print Date: Nov 23 2024 11:16PM

Sampled As	:	Weld		Fine-silty, mixed, mesic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0044

---

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		6C2b
91P00260	0-8	Ap	S		0.082			0.96		0.6
91P00261	8-20	Bt1	S		0.087			0.76		0.6
91P00262	20-30	Bt2	S		0.076			0.76		0.6
91P00263	30-51	Bt3	S		0.066			0.54		0.5
91P00264	51-69	Bk1	S					0.32		0.4
91P00265	69-85	Bk2	S					0.15		0.4
91P00266	85-141		S					0.09		0.1
91P00267	85-141	2Bk1	S					0.08
91P00268	141-150	2Bk2	S					0.08
91P00269	0-8	Ap	S		0.082			0.85

---

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			5A3a	5A8b			5C3	5C1
91P00260	0-8	Ap	S	9.5	3.2	0.1	1.3	14.1	2.4			16.5	14.2			85	99
91P00261	8-20	Bt1	S	14.5*	5.1	0.2	1.6	21.4	2.8			24.2	21.4			88	100
91P00262	20-30	Bt2	S	19.5*	7.7	0.5	2.2	29.9	2.0			31.9	29.1			94	100
91P00263	30-51	Bt3	S	45.4*	8.2	1.0	2.4		--				25.8			100	100
91P00264	51-69	Bk1	S	49.0*	7.4	1.6	2.3						20.6			100	100
91P00265	69-85	Bk2	S	47.7*	6.4	1.8	2.0						16.8			100	100
91P00266	85-141		S	40.5*	3.8	1.8	1.0						8.7			100	100
91P00267	85-141	2Bk1	S	47.0*	7.1	2.7	1.9						17.2			100	100
91P00268	141-150	2Bk2	S	48.1*	4.2	1.9	1.2						11.0			100	100
91P00269	0-8	Ap	S	9.5*	3.1	0.1	1.4	14.1	1.8			15.9	13.9			89	100

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

*** Primary Characterization Data ***

Pedon ID: 90CO075001

( Logan, Colorado )

Print Date: Nov 23 2024 11:16PM

Sampled As	:	Weld		Fine-silty, mixed, mesic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0044

---

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
91P00260	0-8	Ap	S																		0.12	1
91P00261	8-20	Bt1	S																		0.09	1
91P00262	20-30	Bt2	S																		0.10	2
91P00263	30-51	Bt3	S	1.9	0.9	2.7	0.7	--	5.7	0.1	0.3				0.5	--	0.1	58.9	tr	0.59	0.28	3	2
91P00264	51-69	Bk1	S	1.1	0.5	4.0	0.6	--	5.1	0.2	0.4				0.9	--	--	53.8	tr	0.61	0.30	7	4
91P00265	69-85	Bk2	S	1.3	0.6	5.4	0.7	--	5.3	0.3	0.7				2.0	--	--	42.1	tr	0.82	0.41	9	6
91P00266	85-141		S	2.4	1.3	10.0	0.8	--	3.4	0.4	1.4				9.5	--	--	49.4	tr	1.49	0.64	15	7
91P00267	85-141	2Bk1	S	1.5	0.8	8.3	0.7	--	3.1	0.5	0.9				6.9	--	--	55.0	tr	1.17	0.59	13	8
91P00268	141-150	2Bk2	S	3.4	1.8	11.0	1.0	--	2.0	0.6	2.2				13.2	--	--	50.2	0.1	1.68	0.82	12	7
91P00269	0-8	Ap	S																		0.16	1

---

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		4E2a1a1a1		8E1
91P00260	0-8	Ap	S		6.3	7.1
91P00261	8-20	Bt1	S		6.3	7.1
91P00262	20-30	Bt2	S		6.6	7.4
91P00263	30-51	Bt3	S		7.6	8.3	7.6			2
91P00264	51-69	Bk1	S		7.8	8.7	8.0			13
91P00265	69-85	Bk2	S		7.8	8.8	8.1			11
91P00266	85-141		S		7.8	8.5	8.2			51		--		1500
91P00267	85-141	2Bk1	S		7.8	8.4	8.1			14		--
91P00268	141-150	2Bk2	S		7.8	8.3	8.0			51		--
91P00269	0-8	Ap	S		6.5	7.3

*** Primary Characterization Data ***

Pedon ID: 90CO075001

( Logan, Colorado )

Print Date: Nov 23 2024 11:16PM

Sampled As	:	Weld		Fine-silty, mixed, mesic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0044

---

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

91P00260

0-8

Ap

S

27.0

91P00261

8-20

Bt1

S

6.0

91P00262

20-30

Bt2

S

3.0

91P00263

30-51

Bt3

S

15.0

*** Primary Characterization Data ***

Pedon ID: 90CO075001

( Logan, Colorado )

Print Date: Nov 23 2024 11:16PM

Sampled As	:	Weld		Fine-silty, mixed, mesic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0044

---

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

7C3

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

91P00260

0.0-8.0

Ap

tcly

MI 3

MT 3

KK 2

MM 2

QZ 1

19

7.4

3.3

91P00261

8.0-20.0

Bt1

tcly

MI 3

MT 3

KK 2

MM 1

QZ 1

20

7.6

3.0

91P00262

20.0-30.0

Bt2

tcly

MT 4

MI 3

KK 2

MM 1

QZ 1

22

8.1

2.9

91P00265

69.0-85.0

Bk2

tcly

MT 3

CA 3

MI 2

KK 1

MM 1

10

3.9

1.9

QZ 1

91P00268

141.0-150.0

2Bk2

tcly

MT 3

MI 2

CA 2

KK 1

HE 1

12

5.0

2.5

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
CA Calcite	HE Hematite	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: 90CO075001

( Logan, Colorado )

Print Date: Nov 23 2024 11:16PM

Sampled As	:	Weld		Fine-silty, mixed, mesic Aridic Argiustolls
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0044

---

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

91P00261

8.0-20.0

Bt1

vfs

70

QZ 51

FD 21

QC 17

GS 4

MS 2

OP 2

FP 1

BT 1

HN 1

PR tr

AM tr

TM tr

PO tr

GN tr

KK tr

CY tr

91P00263

30.0-51.0

Bt3

vfs

67

QZ 50

QC 15

FD 12

GS 11

FP 2

BT 2

CA 2

PR 2

MS 2

HN 1

OP 1

PO 1

CB tr

AM tr

KK tr

ZR tr

GN tr

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

MINERAL INTERPRETATION:
AM Amphibole	BT Biotite	CA Calcite	CB Carbonate Aggregates	CY Chrysotile
FD Feldspar	FP Plagioclase Feldspar	GN Garnet	GS Glass	HN Hornblende
KK Kaolinite	MS Muscovite	OP Opaques	PO Plant Opal	PR Pyroxene
QC Clay-Coated Quartz	QZ Quartz	TM Tourmaline	ZR Zircon