*** Primary Characterization Data ***

Pedon ID: S1970CO021007

( Conejos, Colorado )

Print Date: Nov 23 2024 5:28PM

Sampled as on Oct 6, 1970:	GRAYPOINT ; Fine-loamy over sandy or sandy-skeletal, mixed, frigid Typic Haplargids
Revised to SSL:	(unnamed) ; Fine-loamy over sandy or sandy-skeletal, mixed, frigid Borollic Haplargid

				United States Department of Agriculture
SSL	-	Project	NL70CO008   SAN LUIS BASIN	Natural Resources Conservation Service
	-	Site ID	S1970CO021007   Lat: 37° 23' 9.08" north  Long: 106° 5' 59.12" west	National Soil Survey Center
	-	Pedon No.	70C0082	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
70C00523	A	A1	0-12	70523			SL	L
70C00524	Bt	B2 t	12-25	70524			CL	CL
70C00525	Bk	C1ca	25-36	70525			L	COS
70C00526	2Bk	2C2ca	36-64	70526			LS	COSL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.67	(NA)
Clay, carbonate free, Weighted Average	10	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	43	% wt
Volume, >2mm, Weighted Average	26	% vol
Clay, total, Weighted Average	11	% wt
Weighted averages based on control section: 12-100 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
70C00523	0-12	A	S	l	12.8	37.5	49.7			15.4	22.1	16.1	10.0	6.7	11.5	5.4	3	4	7	43	14
70C00524	12-25	Bt	S	cl	28.1	35.8	36.1			16.8	19.0	13.5	7.0	5.0	7.6	3.0	1	1	8	30	10
70C00525	25-36	Bk	S	cos	5.3	5.7	89.0			2.8	2.9	3.2	9.9	11.6	31.1	33.2	11	29	31	96	72
70C00526	36-64	2Bk	S	cosl	19.8	28.1	52.1	0.3	5.0	15.2	12.9	9.4	10.0	7.1	15.0	10.6	4	15	52	83	72

*** Primary Characterization Data ***

Pedon ID: S1970CO021007

( Conejos, Colorado )

Print Date: Nov 23 2024 5:28PM

Sampled As	:	GRAYPOINT		Fine-loamy over sandy or sandy-skeletal, mixed, frigid Typic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  70C0082

---

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
70C00523	0-12	A	S	1.51	1.55	0.008		21.5	17.1	6.8		1.008		0.14		1.84	0.53
70C00524	12-25	Bt	S	1.22	1.42	0.049		30.2	25.7	12.5		1.008		0.15		0.91	0.44
70C00525	25-36	Bk	S	1.36	1.45	0.009		25.2	20.8	4.2		1.008		0.10		1.60	0.79
70C00526	36-64	2Bk	S							9.4		1.008				0.79	0.47

---

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

70C00523

0-12

A

S

18.282

2

70C00524

12-25

Bt

S

31.28999

13

70C00525

25-36

Bk

S

NP

NP

---

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
70C00523	0-12	A	S		0.067			0.68	10	1.0	0.1
70C00524	12-25	Bt	S		0.066			0.72	11	1.0	0.1
70C00525	25-36	Bk	S					0.49		0.7	tr
70C00526	36-64	2Bk	S					0.99		0.6	tr

*** Primary Characterization Data ***

Pedon ID: S1970CO021007

( Conejos, Colorado )

Print Date: Nov 23 2024 5:28PM

Sampled As	:	GRAYPOINT		Fine-loamy over sandy or sandy-skeletal, mixed, frigid Typic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  70C0082

---

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					5A3a	5A8b			5C3	5C1
70C00523	0-12	A	S	14.0	3.6	0.1	2.3	20.0				20.0	23.5			100	85
70C00524	12-25	Bt	S	14.9	6.8	0.2	1.5	23.4				23.4	25.5			100	92
70C00525	25-36	Bk	S	14.7*	4.1	0.4	0.4						8.5			100	100
70C00526	36-64	2Bk	S	23.9*	5.6	0.3	0.4						15.6			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 - -)

%

8D5

8A3a

70C00523

0-12

A

S

tr

0.82

tr

70C00524

12-25

Bt

S

tr

0.35

1

70C00525

25-36

Bk

S

tr

0.86

5

70C00526

36-64

2Bk

S

tr

0.58

2

---

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

6E1g

70C00523

0-12

A

S

7.4

7.7

70C00524

12-25

Bt

S

7.2

7.5

70C00525

25-36

Bk

S

7.9

8.5

2

70C00526

36-64

2Bk

S

7.9

8.1

11

*** Primary Characterization Data ***

Pedon ID: S1970CO021007

( Conejos, Colorado )

Print Date: Nov 23 2024 5:28PM

Sampled As	:	GRAYPOINT		Fine-loamy over sandy or sandy-skeletal, mixed, frigid Typic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  70C0082

---

Miscellaneous Data

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

(- Sat Paste Ex. -)

(- Sand -)

( Water Content )

Bulk

(- - - - Extractable Bases - - - -)

(- - - CEC8 - - -)

CO3+

(- - - pH - - -)

M+C+VC

Moist Sieved

Density

Depth

Ca

Mg

Na

K

NaOAC

BaCl2

Ca+Mg

HCO3

CaCl2

H2O

.25-2

100 kPa

200 kPa

10 kPa

Layer

(cm)

Horz

Prep

(- - - - - - - - - - - - - - - cmol(+)kg-1 - - - - - - - - - - - - - -)

mmol(+)L-1

mmol(-)L-1

1:10

1:10

(- - - - - % of <2mm - - - - -)

g cm-3

NK

70C00525

25-36

Bk

S

10.0

70C00526

36-64

2Bk

S

10.0

*** Primary Characterization Data ***

Pedon ID: S1970CO021007

( Conejos, Colorado )

Print Date: Nov 23 2024 5:28PM

Sampled As	:	GRAYPOINT		Fine-loamy over sandy or sandy-skeletal, mixed, frigid Typic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  70C0082

---

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
70C00524	12.0-25.0	Bt	tcly	MT 5	KK 1

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks