*** Primary Characterization Data ***

Pedon ID: S2019TX285002

( Lavaca, Texas )

Print Date: Dec 6 2025 3:46AM

Sampled as on Aug 7, 2018:	Frelsburg ; Fine, smectitic, thermic Udic Calciustert
Revised to :

				United States Department of Agriculture
SSL	-	Project	C2020USTX047   MLRA 86 - Frelsburg Clay 3 to 5 percent slopes	Natural Resources Conservation Service
	-	Site ID	S2019TX285002   Lat: 29° 30' 10.40" north  Long: 97° 3' 52.33" west  MLRA: 86B	National Soil Survey Center
	-	Pedon No.	20N0347	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
20N01518	Ap	Ap	0-14	S2019TX285002-1			CL	SCL
20N01519	Bw	Bw	14-39	S2019TX285002-2			CL	CL
20N01520	Bkss1	Bkss1	39-78	S2019TX285002-3			C	CL
20N01521	Bkss2	Bkss2	78-119	S2019TX285002-4			C	C
20N01522	BCkss	BCkss	119-141	S2019TX285002-5			C	SIC
20N01523	CBkss	CBkss	141-204	S2019TX285002-6			C	SIC

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Weighted Particles, 0.1-75mm, 75 mm Base	31	% wt
Volume, >2mm, Weighted Average	1	% vol
Clay, carbonate free, set 2, Weighted Average	32	% wt
Clay, total, set 2, Weighted Average	37	% wt
CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 8	0.73	(NA)
LE, Whole Soil, Summed to 1m	6	cm/m
Weighted averages based on control section: 25-100 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
20N01518	0-14	Ap	S	scl	22.6	16.9	60.5		3.6	11.2	5.7	6.9	25.1	22.7	3.6	2.2	1	2	1	55	4
20N01519	14-39	Bw	S	cl	33.4	26.2	40.4		3.2	20.9	5.3	4.2	13.9	16.5	4.6	1.2	1	tr	--	37	1
20N01520	39-78	Bkss1	S	cl	34.5	28.7	36.8		5.5	22.5	6.2	3.3	11.1	15.6	5.0	1.8	3	tr	--	35	3
20N01521	78-119	Bkss2	S	c	43.8	34.8	21.4		4.6	21.7	13.1	2.6	7.3	8.1	2.2	1.2	tr	--	--	19	tr
20N01522	119-141	BCkss	S	sic	55.1	40.8	4.1		9.6	31.5	9.3	1.3	1.4	1.1	0.2	0.1	--	--	--	3	--
20N01523	141-204	CBkss	S	sic	54.8	43.4	1.8		8.1	37.4	6.0	0.7	0.4	0.2	0.3	0.2	1	tr	--	2	1

*** Primary Characterization Data ***

Pedon ID: S2019TX285002

( Lavaca, Texas )

Print Date: Dec 6 2025 3:46AM

Sampled As	:	Frelsburg		Fine, smectitic, thermic Udic Calciustert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0347

---

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	4E2a1a1a1
20N01518	0-14	Ap	S	1.61	1.76	0.029			17.6	12.2		1.024		0.09		0.86	0.54
20N01519	14-39	Bw	S	1.61	1.86	0.049			20.9	13.4		1.033		0.12		0.71	0.40
20N01520	39-78	Bkss1	S	1.60	1.90	0.058			22.1	13.9		1.033		0.13		0.75	0.40
20N01521	78-119	Bkss2	S	1.53	1.90	0.075			25.0	16.9		1.039		0.12		0.71	0.39
20N01522	119-141	BCkss	S	1.46	2.00	0.111			29.5	20.5		1.046	1.046	0.13		0.63	0.37
20N01523	141-204	CBkss	S	1.49	1.87	0.078			26.9	19.2		1.043	1.043	0.11		0.58	0.35

---

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

3C1e1a

20N01518

0-14

Ap

S

13.4

20N01519

14-39

Bw

S

16.9

20N01520

39-78

Bkss1

S

19.0

20N01521

78-119

Bkss2

S

24.8

20N01522

119-141

BCkss

S

28.2

20N01523

141-204

CBkss

S

26.5

---

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
20N01518	0-14	Ap	S	3.88	0.17	0.02	1.7		10
20N01519	14-39	Bw	S	3.26	0.07	0.01	0.4		6
20N01520	39-78	Bkss1	S	3.33	0.05	tr	0.3		5
20N01521	78-119	Bkss2	S	3.50	0.04	0.01	0.2		5
20N01522	119-141	BCkss	S	3.33	0.03	0.01	0.2		6
20N01523	141-204	CBkss	S	3.74	0.04	0.01	0.2		5

*** Primary Characterization Data ***

Pedon ID: S2019TX285002

( Lavaca, Texas )

Print Date: Dec 6 2025 3:46AM

Sampled As	:	Frelsburg		Fine, smectitic, thermic Udic Calciustert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0347

---

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
20N01518	0-14	Ap	S	49.1*	0.8	tr	0.4	50.3					19.5				100
20N01519	14-39	Bw	S	57.7*	0.8	0.2	0.4	59.1					23.8				100
20N01520	39-78	Bkss1	S	55.0*	1.4	2.5	0.4	59.3					25.8				100
20N01521	78-119	Bkss2	S	52.5*	2.2	4.9	0.5	60.1					31.0				100
20N01522	119-141	BCkss	S	57.5*	2.9	5.8	0.6	66.8					34.7				100
20N01523	141-204	CBkss	S	59.5*	2.9	5.6	0.6	68.6					32.0				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
20N01518	0-14	Ap	S	10.2	0.5	0.5	0.2	--	7.9	tr	1.1	--	--	--	0.5	--	0.1	46.8		0.96	0.33	tr	tr
20N01519	14-39	Bw	S																		0.20	1
20N01520	39-78	Bkss1	S																		0.25	10
20N01521	78-119	Bkss2	S	0.8	0.1	7.7	tr	--	3.7	0.5	2.8	0.1	--	0.1	1.4	tr	0.1	77.6		0.87	0.50	14	12
20N01522	119-141	BCkss	S	1.8	0.2	11.3	tr	--	2.9	0.5	5.3	0.4	--	tr	4.2	tr	0.1	97.9		1.36	0.77	14	12
20N01523	141-204	CBkss	S	2.0	0.2	12.2	0.1	--	2.8	0.4	7.1	--	--	tr	3.7	--	0.2	91.7		1.54	0.79	14	12

---

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
				4C1a2a3	4C1a2a	4C1a2a	4F2			4E1a1a1a1		4E2a1a1a1
20N01518	0-14	Ap	S	7.4	7.5	8.0	7.2			18
20N01519	14-39	Bw	S	7.4	7.7	8.2				24
20N01520	39-78	Bkss1	S	7.3	7.8	8.8				26
20N01521	78-119	Bkss2	S	7.3	7.8	8.7	8.1			27		--
20N01522	119-141	BCkss	S	7.3	7.8	8.6	8.1			26		--
20N01523	141-204	CBkss	S	7.3	7.7	8.5	8.0			29		--

*** Primary Characterization Data ***

Pedon ID: S2019TX285002

( Lavaca, Texas )

Print Date: Dec 6 2025 3:46AM

Sampled As	:	Frelsburg		Fine, smectitic, thermic Udic Calciustert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0347

---

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

20N01519

14.0-39.0

Bw

tcly

MT 5

KK 2

CA 1

SMEC

20N01520

39.0-78.0

Bkss1

tcly

MT 5

KK 2

CA 2

SMEC

20N01521

78.0-119.0

Bkss2

tcly

MT 4

CA 2

KK 2

SMEC

20N01522

119.0-141.0

BCkss

tcly

MT 4

CA 2

KK 1

LE 1

SMEC

20N01523

141.0-204.0

CBkss

tcly

MT 3

CA 2

KK 1

SMEC

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
CA Calcite	KK Kaolinite	LE Lepidocrocite	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

INTERPRETATION (BY HORIZON):
SMEC - Smectitic

*** Primary Characterization Data ***

Pedon ID: S2019TX285002

( Lavaca, Texas )

Print Date: Dec 6 2025 3:46AM

Sampled As	:	Frelsburg		Fine, smectitic, thermic Udic Calciustert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0347

---

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

20N01519

14.0-39.0

Bw

fs

82

QZ 79

FK 7

BT 3

CA 3

CB 3

FE 2

SMIX

CD 1

FP 1

GN tr

GS tr

MS tr

OP tr

ZR tr

20N01520

39.0-78.0

Bkss1

fs

80

QZ 76

FK 7

CB 5

BT 3

CA 3

FE 3

SMIX

MS 1

CD 1

OP tr

20N01521

78.0-119.0

Bkss2

csi

65

QZ 64

CA 26

FK 4

CB 2

MS 2

CD 1

SMIX

BT 1

BY tr

FP tr

HN tr

FE tr

OP tr

PR tr

ZR tr

RU tr

FRACTION INTERPRETATION:
csi - Coarse Silt 0.02-0.05 mm	fs - Fine Sand 0.1-0.25 mm

MINERAL INTERPRETATION:
BT Biotite	BY Beryl	CA Calcite	CB Carbonate Aggregates	CD Chert (Chalcedony
FE Iron Oxides (Goethite	FK Potassium Feldspar	FP Plagioclase Feldspar	GN Garnet	GS Glass
HN Hornblende	MS Muscovite	OP Opaques	PR Pyroxene	QZ Quartz
RU Rutile	ZR Zircon

*** Primary Characterization Data ***

Pedon ID: S2019TX285002

( Lavaca, Texas )

Print Date: Dec 6 2025 3:46AM

Sampled As	:	Frelsburg		Fine, smectitic, thermic Udic Calciustert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  20N0347

---

INTERPRETATION (BY HORIZON):
SMIX - Mixed Sand