*** Primary Characterization Data ***

Pedon ID: 79CA000002

( California, United States )

Print Date: Dec 7 2025 10:44AM

Sampled as :	Milham
Revised to :

				United States Department of Agriculture
SSL	-	Project	CP80CA110   ERODIBILITY STUDY, CAL-DAVIS	Natural Resources Conservation Service
	-	Site ID	79CA000002	National Soil Survey Center
	-	Pedon No.	80P0158	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
80P00800	A11	A11	0-10					FSL
80P00801	A12	A12	10-36					FSL
80P00802	A2	A3	36-69					FSL
80P00803	Bt1	B21t	69-91					C
80P00804	Bt2	B22t	91-132					C
80P00805	2C	2C1	132-152					SIL

---

---

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	3B1	3B1	3B1
80P00800	0-10	A11	S	fsl	14.4	25.2	60.4			10.3	14.9	26.8	11.2	12.4	8.0	2.0	2	1	--	36	3
80P00801	10-36	A12	S	fsl	16.9	22.6	60.5			9.1	13.5	25.0	11.8	14.0	6.8	2.9	1	1	--	37	2
80P00802	36-69	A2	S	fsl	15.2	19.8	65.0			8.2	11.6	23.1	13.0	17.3	9.0	2.6	2	1	--	44	3
80P00803	69-91	Bt1	S	c	50.3	36.3	13.4		0.3	27.7	8.6	5.3	2.5	3.7	1.4	0.5	tr	--	--	8	--
80P00804	91-132	Bt2	S	c	52.2	39.6	8.2		0.6	31.7	7.9	3.0	1.6	2.2	1.0	0.4	--	--	--	5	--
80P00805	132-152	2C	S	sil	18.8	68.1	13.1			33.8	34.3	11.4	0.7	0.5	0.3	0.2	--	--	--	2	--

*** Primary Characterization Data ***

Pedon ID: 79CA000002

( California, United States )

Print Date: Dec 7 2025 10:44AM

Sampled As	:	Milham
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  80P0158

---

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	3C2a1a		3D1	4E2a1a1a1	4C1		8D1	8D1
80P00800	0-10	A11	S	1.56	1.62	0.012			12.9	8.1		1.013		0.07		0.86	0.56
80P00801	10-36	A12	S	1.42	1.50	0.018			12.2	8.1		1.015		0.06		0.77	0.48
80P00802	36-69	A2	S	1.55	1.61	0.013			9.5	7.2		1.012		0.04		0.78	0.47
80P00803	69-91	Bt1	S							20.5		1.030				0.65	0.41
80P00804	91-132	Bt2	S	1.13	1.52	0.104			37.8	20.4		1.031		0.20		0.70	0.39
80P00805	132-152	2C	S							10.0			1.018			0.99	0.53

---

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 - - - - -)

6B1b

6A1c

80P00800

0-10

A11

S

0.047

0.34

7

80P00801

10-36

A12

S

0.033

0.16

5

80P00802

36-69

A2

S

0.018

0.12

7

80P00803

69-91

Bt1

S

0.14

80P00804

91-132

Bt2

S

0.16

80P00805

132-152

2C

S

0.11

---

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						5A8a			5C3	5C1
80P00800	0-10	A11	S	19.1*	0.9	--	0.6						12.4			100	100
80P00801	10-36	A12	S	28.7*	1.5	0.5	0.5						13.0			100	100
80P00802	36-69	A2	S	34.5*	1.1	2.0	0.3						11.8			100	100
80P00803	69-91	Bt1	S	48.7*	3.5	7.6	0.8						32.8			100	100
80P00804	91-132	Bt2	S	51.9*	4.5	9.9	1.0						36.6			100	100
80P00805	132-152	2C	S	48.4*	2.6	4.7	0.4						18.7			100	100

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

*** Primary Characterization Data ***

Pedon ID: 79CA000002

( California, United States )

Print Date: Dec 7 2025 10:44AM

Sampled As	:	Milham
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  80P0158

---

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 - -)		%
				6N1b	6O1b	6P1b	6Q1b	6I1b	6J1b	6U1a	6K1c				6L1c	6W1a	6M1c	8A	8D5	8A1a	4F1a1a1		5E
80P00800	0-10	A11	S	3.0	0.5	7.8	0.6	--	5.9	0.1	1.1				1.3	0.2	1.0	28.0	tr	1.04	0.30	--	6
80P00801	10-36	A12	S																		0.20	4
80P00802	36-69	A2	S	1.3	0.1	10.2	tr	--	2.9	0.2	5.4				0.9	--	0.8	30.9	tr	1.15	0.35	14	12
80P00803	69-91	Bt1	S	8.4	1.0	27.2	0.1	--	0.9	0.6	19.1				14.3	1.5	--	68.8	0.2	3.80	1.45	17	13
80P00804	91-132	Bt2	S	21.5	2.7	44.9	0.1	--	0.7	1.0	39.0				21.0	--	--	65.0	0.3	6.27	2.34	19	13
80P00805	132-152	2C	S	29.3	3.5	37.0	0.1	--	0.7	1.0	17.0				45.7	--	2.6	49.4	0.2	5.51	3.07	15	9

---

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
					8C1e	8C1a	8C1b			6E1b		6F1c		8E1
80P00800	0-10	A11	S		7.8	8.5	7.7			1
80P00801	10-36	A12	S		7.8	8.5				2
80P00802	36-69	A2	S		7.9	8.8	7.9			3
80P00803	69-91	Bt1	S		8.0	8.1	7.5			5		--
80P00804	91-132	Bt2	S		7.9	8.0	7.5			3		--		820
80P00805	132-152	2C	S		7.8	7.9	7.5			3		1