*** Primary Characterization Data ***

Pedon ID: S2012TX219001

( Hockley, Texas )

Print Date: Apr 24 2024 7:59PM

Sampled as on Mar 18, 2012:	Amarillo ; Fine-loamy, mixed, superactive, thermic Aridic Paleustalf
Revised to correlated:	Amarillo ; Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs

				United States Department of Agriculture
SSL	-	Project	C2012USTX055   CRP Baseline OC Study	Natural Resources Conservation Service
	-	Site ID	S2012TX219001   Lat: 33° 46' 22.73" north  Long: 102° 31' 57.47" west  MLRA: 77C	National Soil Survey Center
	-	Pedon No.	12N7895	Kellogg 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
12N02446	Ap1	Ap1	0-5	S12TX219001-1			FSL	FSL
12N02447	Ap2	Ap2	5-10	S12TX219001-2			FSL	FSL
12N02448	Ap3	Ap3	10-24	S12TX219001-3			SCL	FSL
12N02449	Bt1	Bt1	24-67	S12TX219001-4			SCL	SCL
12N02450	Bt2	Bt2	67-99	S12TX219001-5			SCL	FSL
12N02451	Bt3	Bt3	99-129	S12TX219001-6			SCL	FSL
12N02452	Bkk	Bkk	129-163	S12TX219001-7			SCL	SCL
12N02453	Btkk	Btkk	163-203	S12TX219001-8			SCL	SCL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Weighted Particles, 0.1-75mm, 75 mm Base	41	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	23	% wt
Clay, carbonate free, Weighted Average	23	% wt
CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 4	0.56	(NA)
LE, Whole Soil, Summed to 1m	3	cm/m
Weighted averages based on control section: 24-74 cm

*** Primary Characterization Data ***

Pedon ID: S2012TX219001

( Hockley, Texas )

Print Date: Apr 24 2024 7:59PM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  12N7895

---

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
12N02446	0-5	Ap1	S	fsl	11.2	10.3	78.5	7.2		3.8	6.5	17.4	46.6	12.5	2.0	tr	--	--	--	61	--
12N02447	5-10	Ap2	S	fsl	11.6	8.4	80.0	71.4		2.9	5.5	21.8	43.9	13.3	1.0	tr	--	--	--	58	--
12N02448	10-24	Ap3	S	fsl	16.4	9.8	73.8	75.6		3.9	5.9	21.1	40.3	10.9	1.5	tr	--	--	--	53	--
12N02449	24-67	Bt1	S	scl	24.1	15.7	60.2	82.6		7.2	8.5	20.8	35.4	3.2	0.8	tr	--	--	--	39	--
12N02450	67-99	Bt2	S	fsl	18.0	12.5	69.5	13.0		4.7	7.8	18.4	44.7	5.6	0.8	--	--	--	--	51	--
12N02451	99-129	Bt3	S	fsl	17.4	11.4	71.2	13.6		4.1	7.3	28.1	37.3	5.3	0.5	tr	tr	--	--	43	tr
12N02452	129-163	Bkk	S	scl	27.3	25.4	47.3	7.2	15.0	17.5	7.9	19.7	21.0	4.7	1.3	0.6	7	22	34	73	63
12N02453	163-203	Btkk	S	scl	24.7	25.7	49.6	6.9	11.3	16.7	9.0	20.8	25.3	2.1	1.0	0.4	6	12	tr	42	18

---

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	%
				DbWR1	DbWR1				DbWR1	3C2a1a		3D1
12N02446	0-5	Ap1	S	1.48	1.54	0.013			6.0	3.6		1.015		0.04		0.71	0.32
12N02447	5-10	Ap2	S	1.58	1.63	0.010			7.0	4.1		1.014		0.05		0.62	0.35
12N02448	10-24	Ap3	S	1.67	1.73	0.012			7.9	6.0		1.020		0.03		0.55	0.37
12N02449	24-67	Bt1	S	1.56	1.73	0.035			17.2	8.6		1.031		0.13		0.56	0.36
12N02450	67-99	Bt2	S	1.61	1.71	0.020			13.5	7.0		1.024		0.10		0.57	0.39
12N02451	99-129	Bt3	S	1.57	1.73	0.033			13.8	6.7		1.024		0.11		0.60	0.39
12N02452	129-163	Bkk	S	1.93	1.96	0.002			10.8	8.8		1.021		0.02		0.32	0.32
12N02453	163-203	Btkk	S	1.51	1.61	0.019			17.2	8.1		1.021		0.12		0.35	0.33

*** Primary Characterization Data ***

Pedon ID: S2012TX219001

( Hockley, Texas )

Print Date: Apr 24 2024 7:59PM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  12N7895

---

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 - - - - - - - - - - - - - - - - - - - - - -)
						3B6			3B6
12N02446	0-5	Ap1	CDB			1.26			4.9
12N02447	5-10	Ap2	CDB			1.39			7.2
12N02448	10-24	Ap3	CDB						8.7
12N02449	24-67	Bt1	CDB			1.44			10.6

---

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 - - - - -)
				4H2a	4H2a	4H2a								4G2	4G2	4G2	4G2	4G2
12N02446	0-5	Ap1	S	0.61	0.05	--	0.6		11				0.06	0.01	0.03	0.05	0.02	57.7
12N02447	5-10	Ap2	S	0.43	0.03	--	0.4		14				0.06	0.01	0.03	0.04	0.01	52.8
12N02448	10-24	Ap3	S	0.42	0.06	--	0.4		8				0.08	0.03	0.04	0.06	0.02	69.1
12N02449	24-67	Bt1	S	0.38	0.03	--	0.4		12				0.12	0.02	0.06	0.09	0.03	102.6
12N02450	67-99	Bt2	S	0.20	0.04	--	0.2		5				0.08	0.01	0.04	0.06	0.02	64.8
12N02451	99-129	Bt3	S	0.15	--	--	0.2						0.07	tr	0.03	0.05	0.02	40.8
12N02452	129-163	Bkk	S	4.48	0.04	tr	0.1		2				0.04	tr	0.01	0.03	0.02	18.8
12N02453	163-203	Btkk	S	3.40	0.02	--	0.1		7				0.04	tr	0.02	0.03	0.02	31.6

*** Primary Characterization Data ***

Pedon ID: S2012TX219001

( Hockley, Texas )

Print Date: Apr 24 2024 7:59PM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  12N7895

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				4B1a1a	4B1a1a	4B1a1a	4B1a1a		4B2b1a1				4B1a1a
12N02446	0-5	Ap1	S	6.7*	1.6	--	0.8	9.1	9.6			18.7	7.9			49	100
12N02447	5-10	Ap2	S	5.9*	1.3	--	0.7	7.9	10.6			18.5	7.2			43	100
12N02448	10-24	Ap3	S	7.4*	1.5	--	0.7	9.6	13.9			23.5	9.1			41	100
12N02449	24-67	Bt1	S	10.7*	2.6	--	0.6	13.9	3.4			17.3	13.4			80	100
12N02450	67-99	Bt2	S	8.0*	2.3	--	0.5	10.8	2.3			13.1	10.2			82	100
12N02451	99-129	Bt3	S	8.2*	2.1	--	0.6	10.9	2.1			13.0	10.4			84	100
12N02452	129-163	Bkk	S	51.5*	2.7	--	0.4	54.6					8.6				100
12N02453	163-203	Btkk	S	51.0*	4.5	--	0.5	56.0					8.7				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 - -)		%
																					4F1a1a1
12N02446	0-5	Ap1	S																		0.16	--
12N02447	5-10	Ap2	S																		0.10	--
12N02448	10-24	Ap3	S																		0.09	--
12N02449	24-67	Bt1	S																		0.04	--
12N02450	67-99	Bt2	S																		0.04	--
12N02451	99-129	Bt3	S																		0.06	--
12N02452	129-163	Bkk	S																		0.15	--
12N02453	163-203	Btkk	S																		0.17	--

*** Primary Characterization Data ***

Pedon ID: S2012TX219001

( Hockley, Texas )

Print Date: Apr 24 2024 7:59PM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  12N7895

---

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				4E1a1a1a1
12N02446	0-5	Ap1	S		6.8	7.5
12N02447	5-10	Ap2	S		6.4	7.1
12N02448	10-24	Ap3	S		6.3	7.0
12N02449	24-67	Bt1	S		6.4	7.2
12N02450	67-99	Bt2	S		6.6	7.4
12N02451	99-129	Bt3	S		6.9	7.7
12N02452	129-163	Bkk	S		7.8	8.4				37
12N02453	163-203	Btkk	S		7.9	8.4				27

---

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

4G2

4D6a1

12N02446

0-5

Ap1

S

27.4

3.3

12N02447

5-10

Ap2

S

23.9

1.0

12N02448

10-24

Ap3

S

23.4

0.6

12N02449

24-67

Bt1

S

13.5

0.4

12N02450

67-99

Bt2

S

20.2

12N02451

99-129

Bt3

S

26.5

12N02452

129-163

Bkk

S

61.4

12N02453

163-203

Btkk

S

50.3

*** Primary Characterization Data ***

Pedon ID: S2012TX219001

( Hockley, Texas )

Print Date: Apr 24 2024 7:59PM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  12N7895

---

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

7A1b1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

12N02446

0.0-5.0

Ap1

tcly

MI 2

KK 2

MT 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

CMIX

12N02449

24.0-67.0

Bt1

tcly

MI 2

MT 2

KK 2

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

CMIX

12N02450

67.0-99.0

Bt2

tcly

MI 2

KK 2

MT 2

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

CMIX

12N02453

163.0-203.0

Btkk

tcly

MT 3

MI 2

KK 2

CA 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

SMEC

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

MINERAL INTERPRETATION:
CA Calcite	KK Kaolinite	MI Mica	MT Montmorillonite	 

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

INTERPRETATION (BY HORIZON):
CMIX - Mixed Clay	SMEC - Smectitic