*** Primary Characterization Data ***

Pedon ID: S2019TX305002

( Lynn, Texas )

Print Date: Dec 8 2025 7:05AM

Sampled as on Jan 28, 2019:	Amarillo ; Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs
Revised to :

				United States Department of Agriculture
SSL	-	Project	C2019USTX060   Investigating Benchmark Soils in the South	Natural Resources Conservation Service
	-	Site ID	S2019TX305002   Lat: 33° 11' 0.97" north  Long: 101° 52' 21.17" west  MLRA: 77C	National Soil Survey Center
	-	Pedon No.	19N0414	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
19N02754	A	A	0-10	S2019TX305002-1			VFSL	VFSL
19N02755	Bt1	Bt1	10-49	S2019TX305002-2			SCL	SCL
19N02756	Bt2	Bt2	49-80	S2019TX305002-3			SCL	SCL
19N02757	Bt3	Bt3	80-119	S2019TX305002-4			SCL	SCL
19N02758	Btk	Btk	119-168	S2019TX305002-5			SCL	SCL
19N02759	Bkk	Bkk	168-203	S2019TX305002-6			CL	CL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Weighted Particles, 0.1-75mm, 75 mm Base	36	% wt
Volume, >2mm, Weighted Average	0	% vol
LE, Whole Soil, Summed to 1m	3	cm/m
Clay, carbonate free, set 2, Weighted Average	25	% wt
Clay, total, set 2, Weighted Average	25	% wt
CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 7	0.52	(NA)
Weighted averages based on control section: 10-60 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
19N02754	0-10	A	S	vfsl	17.4	23.7	58.9	11.8		8.0	15.7	28.0	24.7	6.0	0.2	--	--	--	--	31	--
19N02755	10-49	Bt1	S	scl	24.1	14.9	61.0	19.4		5.3	9.6	23.1	31.6	6.1	0.2	tr	--	--	--	38	--
19N02756	49-80	Bt2	S	scl	29.7	18.1	52.2	23.9		7.5	10.6	20.9	25.7	5.2	0.3	0.1	--	--	--	31	--
19N02757	80-119	Bt3	S	scl	27.6	17.0	55.4	21.1	--	5.1	11.9	22.9	27.1	5.1	0.3	tr	--	--	--	33	--
19N02758	119-168	Btk	S	scl	25.1	13.4	61.5	14.8	--	3.1	10.3	25.2	28.3	7.5	0.3	0.2	tr	tr	--	36	1
19N02759	168-203	Bkk	S	cl	31.6	27.9	40.5	10.4	19.0	20.1	7.8	14.7	19.3	5.2	0.9	0.4	tr	tr	--	26	tr

*** Primary Characterization Data ***

Pedon ID: S2019TX305002

( Lynn, Texas )

Print Date: Dec 8 2025 7:05AM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0414

---

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
19N02754	0-10	A	S	1.51	1.58	0.015			14.5	6.3		1.022		0.12		0.60	0.36
19N02755	10-49	Bt1	S	1.42	1.54	0.027			12.6	8.2		1.031		0.06		0.52	0.34
19N02756	49-80	Bt2	S	1.54	1.66	0.025			14.8	10.1		1.038		0.07		0.51	0.34
19N02757	80-119	Bt3	S	1.58	1.78	0.041			15.6	9.9		1.036		0.09		0.49	0.36
19N02758	119-168	Btk	S	1.58	1.74	0.033			16.6	9.4		1.035		0.11		0.55	0.37
19N02759	168-203	Bkk	S	1.57	1.68	0.023			19.3	7.8		1.021		0.18		0.25	0.25

---

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				4G1	4G1	4G1		4G4	4G4	4G4	4G4	4G4
19N02754	0-10	A	S	1.05	0.11	tr	1.1		10	0.5	tr	tr	0.07	0.02	0.03	0.05	0.02	149.8
19N02755	10-49	Bt1	S	0.62	0.06	tr	0.6		10	0.6	0.1	tr	0.08	0.01	0.03	0.06	0.03	137.5
19N02756	49-80	Bt2	S	0.48	0.04	tr	0.5		12	0.7	0.1	tr	0.09	0.01	0.04	0.07	0.03	152.2
19N02757	80-119	Bt3	S	0.26	0.05	--	0.2		5	0.7	0.1	tr	0.09	0.01	0.04	0.07	0.04	97.7
19N02758	119-168	Btk	S	0.33	0.03	--	0.2		6	0.5	0.1	--	0.07	0.01	0.03	0.06	0.03	72.6
19N02759	168-203	Bkk	S	5.22	0.03	--	0.1		3	0.2	tr	--	0.02	0.01	0.01	0.02	0.01	19.3

---

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						4B1a1a
19N02754	0-10	A	S	8.7*	1.7	tr	1.0	11.4					10.5				100
19N02755	10-49	Bt1	S	9.7*	2.3	tr	0.7	12.7					12.6				100
19N02756	49-80	Bt2	S	11.5*	3.2	0.1	0.7	15.5					15.0				100
19N02757	80-119	Bt3	S	9.2	3.3	0.1	0.8	13.4					13.6				99
19N02758	119-168	Btk	S	20.1*	4.8	0.1	0.9	25.9					13.7				100
19N02759	168-203	Bkk	S	36.7*	4.4	0.2	0.5	41.8					8.0				100

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

*** Primary Characterization Data ***

Pedon ID: S2019TX305002

( Lynn, Texas )

Print Date: Dec 8 2025 7:05AM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0414

---

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 - -)		%
				4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2		4F2	4F1a1a1
19N02754	0-10	A	S																		0.19	tr
19N02755	10-49	Bt1	S																		0.12	tr
19N02756	49-80	Bt2	S																		0.18	tr
19N02757	80-119	Bt3	S																		0.22	1
19N02758	119-168	Btk	S	3.0	1.6	1.0	0.3	--	1.6	0.1	1.0	--	--	0.1	1.7	tr	1.2	51.6		0.60	0.24	1	1
19N02759	168-203	Bkk	S	4.4	3.2	2.1	0.4	--	1.2	0.1	2.1	--	--	tr	1.5	tr	5.0	60.9		1.09	0.37	1	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	4F2			4E1a1a1a1
19N02754	0-10	A	S		7.1	7.5				--
19N02755	10-49	Bt1	S		7.0	7.4				--
19N02756	49-80	Bt2	S		7.4	7.8				--
19N02757	80-119	Bt3	S		7.7	8.1				tr
19N02758	119-168	Btk	S		7.8	8.2	7.8			1
19N02759	168-203	Bkk	S		8.0	8.4	7.9			43

---

Phosphorous				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
					(- - - - - - - - - - - - - - - - - - - - - - - Phosphorous - - - - - - - - - - - - - - - - - - - - -)										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 - - - - - - - - - - - - - - - - - - - -)
						4G4								4D6a1
19N02754	0-10	A	S			92.3								7.6
19N02755	10-49	Bt1	S			75.5								1.5
19N02756	49-80	Bt2	S			66.3								0.9
19N02757	80-119	Bt3	S			70.7								3.2
19N02758	119-168	Btk	S			80.9								2.9
19N02759	168-203	Bkk	S			129.3								0.2

*** Primary Characterization Data ***

Pedon ID: S2019TX305002

( Lynn, Texas )

Print Date: Dec 8 2025 7:05AM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0414

---

Trace Elements Tier 1				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
	Depth			Ag	As	Ba	Be	Cd	Co	Cr	Cu	Mn	Mo		Hg
Layer	(cm)	Horz	Prep	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg		ug/kg
				4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a		4H1a
19N02754	0-10	A	HM	0.16	4.49	76.64	0.61	0.16	3.98	14.77	7.76	199.09	0.46		23
19N02755	10-49	Bt1	HM	0.20	4.76	85.96	0.79	0.09	4.17	16.96	7.42	177.97	0.41		21
19N02756	49-80	Bt2	HM	0.22	5.73	94.72	0.87	0.11	5.40	19.11	9.46	232.50	0.55		22
19N02757	80-119	Bt3	HM	0.18	5.63	83.90	0.93	0.09	5.02	20.12	9.71	164.10	0.46		24
19N02758	119-168	Btk	HM	0.16	4.75	75.83	0.79	0.06	4.35	16.34	8.02	128.57	0.38		16
19N02759	168-203	Bkk	HM	0.10	3.03	105.27	0.42	0.18	2.71	9.10	4.25	64.90	0.28		17

---

Trace Elements Tier 2				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-
	Depth			Ni	P	Pb	Sb	Se	Sn	Sr	Tl	V	W	Zn
Layer	(cm)	Horz	Prep	mg/kg	mg/kg	mg/kg	mg/kg	ug/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg
				4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a		4H1a	4H1a	4H1a
19N02754	0-10	A	HM	8.95	157.34	9.08	0.27	182.85	0.64	22.19		26.82	0.04	33.33
19N02755	10-49	Bt1	HM	10.60	134.70	8.31	0.28	226.47	0.68	27.57		33.97	0.04	36.58
19N02756	49-80	Bt2	HM	12.65	123.66	9.43	0.31	265.06	0.79	32.74		40.35	0.04	40.39
19N02757	80-119	Bt3	HM	13.75	118.37	8.91	0.33	169.70	0.82	33.10		36.89	0.04	39.61
19N02758	119-168	Btk	HM	12.39	101.97	7.36	0.30	159.95	0.68	43.34		29.66	0.04	32.68
19N02759	168-203	Bkk	HM	7.44	148.97	4.27	0.17	24.49	0.37	164.31		17.85	0.04	17.62

---

Major Elements				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
	Depth			Al	Ca	Fe	K	Mg	Mn	Na	P	Si	Sr	Ti	Zr
Layer	(cm)	Horz	Prep	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg
				4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b
19N02754	0-10	A	HM	38458	2916	13978	13667	2633	332	3926	219	381927	68	2365	94
19N02755	10-49	Bt1	HM	43709	2768	17098	13131	3202	309	3152	202	353145	67	2339	93
19N02756	49-80	Bt2	HM	52451	3217	20276	15014	4072	383	3594	228	371924	79	2671	99
19N02757	80-119	Bt3	HM	50756	3060	19641	14256	3860	280	3417	190	369484	77	2527	98
19N02758	119-168	Btk	HM	44571	6339	16925	13172	4038	245	2849	182	406421	81	2186	81
19N02759	168-203	Bkk	HM	23048	152636	8993	7260	3845	165	1722	236	249776	197	1337	65

^1,1,2,3,4,5 Multiple values present due to instrumentation or analyzed size fraction. See laboratory for more information.

*** Primary Characterization Data ***

Pedon ID: S2019TX305002

( Lynn, Texas )

Print Date: Dec 8 2025 7:05AM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0414

---

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

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

19N02755

10.0-49.0

Bt1

tcly

MI 2

KK 2

CMIX

19N02756

49.0-80.0

Bt2

tcly

MI 2

KK 1

QZ 1

CMIX

19N02757

80.0-119.0

Bt3

tcly

MI 2

KK 1

CMIX

19N02758

119.0-168.0

Btk

tcly

MI 2

KK 1

CMIX

19N02759

168.0-203.0

Bkk

tcly

CA 3

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
CA Calcite	KK Kaolinite	MI Mica	QZ Quartz

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

INTERPRETATION (BY HORIZON):
CMIX - Mixed Clay

*** Primary Characterization Data ***

Pedon ID: S2019TX305002

( Lynn, Texas )

Print Date: Dec 8 2025 7:05AM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0414

---

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

19N02754

0.0-10.0

A

vfs

82

QZ 81

FK 16

BT 1

CD 1

FE tr

ZR tr

SMIX

HN tr

MS tr

OP tr

PR tr

19N02755

10.0-49.0

Bt1

fs

94

QZ 92

FK 3

MS 2

CD 2

BT 1

FE tr

SILI

OP tr

19N02756

49.0-80.0

Bt2

fs

93

QZ 92

FK 4

BT 2

CD 1

FE tr

MS tr

SILI

OP tr

19N02757

80.0-119.0

Bt3

fs

95

QZ 93

CD 2

FK 2

MS 1

BT 1

FE tr

SILI

19N02758

119.0-168.0

Btk

fs

93

QZ 92

FK 5

BT 2

CD 1

MS 1

OP tr

SILI

FE tr

19N02759

168.0-203.0

Bkk

fs

82

QZ 80

CB 11

FK 4

CD 2

MS 1

BT 1

SMIX

FE tr

FRACTION INTERPRETATION:
vfs - Very Fine Sand 0.05-0.1 mm	fs - Fine Sand 0.1-0.25 mm

MINERAL INTERPRETATION:
BT Biotite	CB Carbonate Aggregates	CD Chert (Chalcedony	FE Iron Oxides (Goethite	FK Potassium Feldspar
HN Hornblende	MS Muscovite	OP Opaques	PR Pyroxene	QZ Quartz
ZR Zircon

*** Primary Characterization Data ***

Pedon ID: S2019TX305002

( Lynn, Texas )

Print Date: Dec 8 2025 7:05AM

Sampled As	:	Amarillo		Fine-loamy, mixed, superactive, thermic Aridic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0414

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INTERPRETATION (BY HORIZON):
SILI - Siliceous	SMIX - Mixed Sand