*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled as on Feb 11, 2019:	Arvana ; Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
Revised to :

				United States Department of Agriculture
SSL	-	Project	C2019USTX060   Investigating Benchmark Soils in the South	Natural Resources Conservation Service
	-	Site ID	S2019TX305004     MLRA: 77C	National Soil Survey Center
	-	Pedon No.	19N0416	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
19N02766	AB	AB	0-10	S2019TX305004-1			SCL	SCL
19N02767	Bt1	Bt1	10-37	S2019TX305004-2			SCL	SCL
19N02768	Bt2	Bt2	37-58	S2019TX305004-3			CL	CL
19N02769	2Bkkmb	2Bkkmb	58-102	S2019TX305004-4			CEM
19N02770	Bkkb	Bkkb	102-160	S2019TX305004-5			CL	CL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Weighted Particles, 0.1-75mm, 75 mm Base	20	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, carbonate free, set 2, Weighted Average	31	% wt
Clay, total, set 2, Weighted Average	33	% wt
CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 7	0.61	(NA)
Weighted averages based on control section: 10-58 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
19N02766	0-10	AB	S	scl	25.2	26.1	48.7	13.8	0.4	8.7	17.4	25.3	20.2	3.0	0.2	tr	tr	tr	--	23	tr
19N02767	10-37	Bt1	S	scl	30.4	23.6	46.0	17.1	0.6	9.7	13.9	23.5	19.6	2.8	0.1	tr	--	--	--	23	--
19N02768	37-58	Bt2	S	cl	35.3	26.6	38.1	15.5	3.3	12.1	14.5	21.9	14.0	2.0	0.2	tr	--	--	--	16	--
19N02769	58-102	2Bkkmb	S														--	--	--	--	--
19N02770	102-160	Bkkb	S	cl	35.3	35.2	29.5	9.9	23.0	26.5	8.7	11.0	10.6	4.5	1.7	1.7	4	4	tr	25	8

*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled As	:	Arvana		Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0416

---

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
					3A1a2a					3A1a2a		3A1a2a	3A1a2a	3A1a2a	3A1a2a	3A1a2a
19N02769	58-102	2Bkkmb	GP		35.5					11.0		21.5	16.0	2.2	0.1	tr

---

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
19N02766	0-10	AB	S	1.46	1.68	0.048			20.3	10.0		1.037		0.15		0.78	0.40
19N02767	10-37	Bt1	S	1.39	1.60	0.048			23.0	12.1		1.045		0.15		0.68	0.40
19N02768	37-58	Bt2	S	1.33	1.51	0.043			22.1	13.3		1.046		0.12		0.53	0.38
19N02769	58-102	2Bkkmb	GP									1.010
19N02770	102-160	Bkkb	S	1.39	1.46	0.016			21.5	8.8		1.022		0.17		0.22	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
19N02766	0-10	AB	S	1.32	0.15	0.01	1.2		8	0.5	0.1	tr	0.10	0.02	0.03	0.08	0.04	148.1
19N02767	10-37	Bt1	S	1.20	0.16	0.01	1.0		7	0.6	0.1	tr	0.11	0.02	0.03	0.10	0.05	122.9
19N02768	37-58	Bt2	S	1.45	0.13	0.01	0.6		5	0.6	0.1	tr	0.11	0.04	0.03	0.10	0.05	120.1
19N02770	102-160	Bkkb	S	7.63	0.06	0.02	0.2		3	0.2	tr	--	0.02	0.01	0.01	0.01	0.01	11.3

*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled As	:	Arvana		Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0416

---

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
19N02766	0-10	AB	S	21.3*	1.8	tr	1.8	24.9					19.6				100
19N02767	10-37	Bt1	S	35.1*	2.0	tr	1.1	38.2					20.6				100
19N02768	37-58	Bt2	S	45.7*	2.7	0.1	0.8	49.3					18.8				100
19N02770	102-160	Bkkb	S	39.2*	5.2	0.2	0.5	45.1					7.7				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 - -)		%
				4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2		4F2	4F1a1a1
19N02766	0-10	AB	S	4.3	0.5	0.2	0.6	--	3.0	tr	0.2	--	--	0.1	0.3	1.1	0.5	60.5		0.55	0.24	--	tr
19N02767	10-37	Bt1	S																		0.19	tr
19N02768	37-58	Bt2	S																		0.19	tr
19N02770	102-160	Bkkb	S																		0.21	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

4F2

4E1a1a1a1

19N02766

0-10

AB

S

7.7

8.1

7.7

1

19N02767

10-37

Bt1

S

7.9

8.3

1

19N02768

37-58

Bt2

S

8.0

8.4

7

19N02769

58-102

2Bkkmb

GP

80

19N02770

102-160

Bkkb

S

8.2

8.7

62

*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled As	:	Arvana		Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0416

---

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

19N02766

0-10

AB

S

124.3

5.8

19N02767

10-37

Bt1

S

116.6

1.8

19N02768

37-58

Bt2

S

135.6

2.2

19N02770

102-160

Bkkb

S

110.5

0.2

---

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
19N02766	0-10	AB	HM	0.19	6.19	113.76	0.83	0.16	5.18	18.34	9.72	215.32	0.45		19
19N02767	10-37	Bt1	HM	0.19	8.02	131.24	0.96	0.17	5.95	21.08	10.76	203.60	0.47		19
19N02768	37-58	Bt2	HM	0.19	7.92	134.94	1.01	0.13	6.45	20.78	11.73	199.61	0.56		25
19N02769	58-102	2Bkkmb	GP	0.05	3.45	1714.99	0.26	0.17	4.28	5.17	3.31	46.45	0.20		11
19N02770	102-160	Bkkb	HM	0.10	4.95	441.74	0.42	0.14	3.29	8.26	3.81	56.39	0.32		8

---

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
19N02766	0-10	AB	HM	12.49	190.59	10.24	0.35	244.50	0.79	33.55		32.91	0.06	43.25
19N02767	10-37	Bt1	HM	14.81	195.30	10.07	0.37	303.27	0.97	42.87		42.75	0.05	42.80
19N02768	37-58	Bt2	HM	15.24	215.54	10.60	0.38	275.93	0.87	74.21		48.01	0.07	45.75
19N02769	58-102	2Bkkmb	GP	4.70	196.78	2.82	0.21	124.71	0.20	380.81		12.50	0.09	10.52
19N02770	102-160	Bkkb	HM	7.34	167.35	4.03	0.24	65.56	0.39	488.02		23.23	0.09	17.39

*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled As	:	Arvana		Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0416

---

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
19N02766	0-10	AB	HM	50457	7767	18534	16807	4692	367	4547	281	364079	88	2779	110
19N02767	10-37	Bt1	HM	50848	10097	20043	15548	4921	331	4101	258	370654	92	2729	107
19N02768	37-58	Bt2	HM	55801	30820	22488	16398	5392	348	4538	367	340581	137	3084	125
19N02769	58-102	2Bkkmb	GP	11840	302563	4608	3556	3834	131	1097	286	84473	425	686	33
19N02770	102-160	Bkkb	HM	21879	231314	8587	6711	7403	151	1815	240	155978	578	1160	55

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

*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled As	:	Arvana		Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0416

---

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

19N02767

10.0-37.0

Bt1

tcly

MI 2

MT 1

KK 1

CA 1

CMIX

19N02768

37.0-58.0

Bt2

tcly

MI 3

MT 2

KK 2

CMIX

19N02769

58.0-102.0

2Bkkmb

tcly

CA 3

MI 1

CMIX

19N02770

102.0-160.0

Bkkb

tcly

CA 3

MI 2

MT 2

KK 1

CMIX

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

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

*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled As	:	Arvana		Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0416

---

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

19N02766

0.0-10.0

AB

vfs

77

QZ 76

FK 18

MS 2

BT 2

BY 1

CD tr

SMIX

FE tr

OP tr

PR tr

GN tr

ZR tr

19N02767

10.0-37.0

Bt1

vfs

81

QZ 81

FK 16

BT 2

PR 1

FE tr

RU tr

SMIX

ZR tr

GN tr

MS tr

OP tr

PO tr

19N02768

37.0-58.0

Bt2

vfs

76

QZ 73

FK 19

CD 3

MS 2

BT 1

CB 1

SMIX

FE tr

OP tr

PR tr

GN tr

19N02769

58.0-102.0

2Bkkmb

vfs

78

QZ 74

FK 17

MS 3

BT 2

CD 2

FE 1

SMIX

OP 1

PR 1

HN tr

BY tr

19N02770

102.0-160.0

Bkkb

vfs

41

CB 46

QZ 40

FK 11

MS 1

CD 1

BT 1

SMIX

CA tr

FE tr

PR tr

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

MINERAL INTERPRETATION:
BT Biotite	BY Beryl	CA Calcite	CB Carbonate Aggregates	CD Chert (Chalcedony
FE Iron Oxides (Goethite	FK Potassium Feldspar	GN Garnet	HN Hornblende	MS Muscovite

*** Primary Characterization Data ***

Pedon ID: S2019TX305004

( Lynn, Texas )

Print Date: Dec 8 2025 2:27AM

Sampled As	:	Arvana		Fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0416

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MINERAL INTERPRETATION:
OP Opaques	PO Plant Opal	PR Pyroxene	QZ Quartz	RU Rutile
ZR Zircon

INTERPRETATION (BY HORIZON):
SMIX - Mixed Sand