*** Primary Characterization Data ***

Pedon ID: S1970CO003001

( Alamosa, Colorado )

Print Date: Nov 21 2024 11:13AM

Sampled as on May 30, 1970:	HOOPER
Revised to correlated:	unnamed ; Fine, montmorillonitic, frigid Typic Natrargids

				United States Department of Agriculture
SSL	-	Project	NL70CO008   SAN LUIS BASIN	Natural Resources Conservation Service
	-	Site ID	S1970CO003001   Lat: 37° 29' 19.08" north  Long: 106° 2' 8.10" west	National Soil Survey Center
	-	Pedon No.	70C0083	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
70C00527	E1	A21	0-8	70527			LS	LS
70C00528	E2	A22	8-13	70528			SL	SCL
70C00529	Bt1	B21t	13-29	70529			C	C
70C00530	Bt2	B22t	29-43	70530			CL	SCL
70C00531	C	C 1	43-67	70531			SCL	FSL
70C00532	2C	2 C 2	67-90	70532			S	COS

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	1.93	(NA)
Clay, carbonate free, Weighted Average	15	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	50	% wt
Volume, >2mm, Weighted Average	6	% vol
Clay, total, Weighted Average	16	% wt
Weighted averages based on control section: 13-100 cm

---

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
70C00527	0-8	E1	S	ls	7.2	15.4	77.4			10.8	4.6	8.4	30.9	20.6	15.1	2.4	--	--	--	69	--
70C00528	8-13	E2	S	scl	22.4	22.3	55.3	2.3	12.0	17.1	5.2	6.9	21.1	13.7	11.2	2.4	--	--	--	48	--
70C00529	13-29	Bt1	S	c	40.6	17.0	42.4	18.1	8.0	8.9	8.1	10.8	16.2	7.8	5.6	2.0	--	--	--	32	--
70C00530	29-43	Bt2	S	scl	22.6	21.3	56.1			10.3	11.0	16.7	19.3	8.1	8.2	3.8	--	--	--	39	--
70C00531	43-67	C	S	fsl	16.6	22.4	61.0	7.7		11.6	10.8	17.2	19.2	8.9	10.3	5.4	4	--	--	46	4
70C00532	67-90	2C	S	cos	1.8	2.8	95.4			2.5	0.3	3.0	21.0	26.7	27.8	16.9	24	9	--	95	33

*** Primary Characterization Data ***

Pedon ID: S1970CO003001

( Alamosa, Colorado )

Print Date: Nov 21 2024 11:13AM

Sampled As	:	HOOPER
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  70C0083

---

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
70C00527	0-8	E1	S	1.64	1.65	0.002		10.3	8.4	3.5		1.008		0.08		0.97	0.49
70C00528	8-13	E2	S	1.64	1.68	0.008		16.7	15.1	4.7		1.008		0.17		0.33	0.21
70C00529	13-29	Bt1	S	1.50	1.77	0.057		27.5	23.4	22.0		1.008		0.02		0.54	0.54
70C00530	29-43	Bt2	S	1.47	1.69	0.048		28.5	24.3	13.4		1.023		0.16		0.86	0.59
70C00531	43-67	C	S	1.65	1.75	0.019		18.4	15.9	11.0		1.023		0.08		1.13	0.66
70C00532	67-90	2C	S							3.5		1.023				5.11	1.94

---

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 - - - - - - - - - - - - - - - - - - - - - -)

4F1

4F

70C00527

0-8

E1

S

NP

NP

70C00529

13-29

Bt1

S

43.42799

26

70C00530

29-43

Bt2

S

33.43999

17

70C00531

43-67

C

S

29.50499

13

---

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

6G7a

70C00527

0-8

E1

S

0.021

0.15

7

0.4

tr

70C00528

8-13

E2

S

0.042

0.41

10

0.3

tr

70C00529

13-29

Bt1

S

0.33

0.2

tr

70C00530

29-43

Bt2

S

0.22

0.4

tr

70C00531

43-67

C

S

0.05

0.5

tr

70C00532

67-90

2C

S

0.04

0.6

tr

*** Primary Characterization Data ***

Pedon ID: S1970CO003001

( Alamosa, Colorado )

Print Date: Nov 21 2024 11:13AM

Sampled As	:	HOOPER
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  70C0083

---

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						5A8b			5C3	5C1
70C00527	0-8	E1	S	10.3*	0.9	5.4	2.1						7.0			100	100
70C00528	8-13	E2	S	11.5*	1.0	5.7	1.7						7.4			100	100
70C00529	13-29	Bt1	S	11.6*	2.6	19.9	3.9						21.8			100	100
70C00530	29-43	Bt2	S	10.5*	0.9	20.3	2.6						19.5			100	100
70C00531	43-67	C	S	11.2*	0.5	19.4	2.4						18.8			100	100
70C00532	67-90	2C	S	3.9*	0.7	7.9	1.2						9.2			100	100

^*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 - -)		%
				6N1b	6O1b	6P1b	6Q1b	6I1b	6J1b		6K1c				6L1c			8A	8D5	8A3a			5E
70C00527	0-8	E1	S	0.6	0.6	37.0	1.0		12.4		10.3				10.4			20.4	0.1	3.63		66	48
70C00528	8-13	E2	S	1.0	1.1	40.2	0.7		8.7		13.6				16.2			20.0	0.1	4.19		66	39
70C00529	13-29	Bt1	S	0.8	0.9	44.1	0.5	5.7	17.7		9.7				11.3			67.2	0.2	3.89		78	48
70C00530	29-43	Bt2	S	0.8	0.8	72.7	0.7	13.8	15.6		11.2				25.7			48.5	0.2	6.60		86	81
70C00531	43-67	C	S	0.7	1.2	75.0	0.7	17.5	10.9		11.4				28.4			46.2	0.2	6.20		85	77
70C00532	67-90	2C	S	0.4	0.5	17.2	0.2	0.9	7.9		2.3				5.9			30.2	tr	1.58		80	26

---

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
70C00527	0-8	E1	S		8.7	9.8	8.8			5
70C00528	8-13	E2	S		8.2	9.6	8.7			19
70C00529	13-29	Bt1	S		9.2	9.5				11
70C00530	29-43	Bt2	S		9.5	9.9	9.4			4
70C00531	43-67	C	S		9.7	10.1	9.5			4
70C00532	67-90	2C	S		9.0	10.0	9.6			tr

*** Primary Characterization Data ***

Pedon ID: S1970CO003001

( Alamosa, Colorado )

Print Date: Nov 21 2024 11:13AM

Sampled As	:	HOOPER
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  70C0083

---

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

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

70C00528

8.0-13.0

E2

fcly

MT 3

MI 2

70C00529

13.0-29.0

Bt1

fcly

MI 3

70C00529

13.0-29.0

Bt1

tcly

MI 3

70C00531

43.0-67.0

C

fcly

MT 4

70C00531

43.0-67.0

C

tcly

MT 3

MI 3

FRACTION INTERPRETATION:
fcly - Fine Clay <0.0002 mm	tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
MI Mica	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks