*** Primary Characterization Data ***

Pedon ID: S1972CA013008

( Contra Costa, California )

Print Date: Nov 23 2024 8:19PM

Sampled as on Apr 12, 1972:	Los Osos
Revised to correlated:	unnamed ; Fine, montmorillonitic, thermic Typic Argixerolls

				United States Department of Agriculture
SSL	-	Project	NL71CA001   CONTRA COSTA ARE	Natural Resources Conservation Service
	-	Site ID	S1972CA013008	National Soil Survey Center
	-	Pedon No.	72C0009	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
72C00058	A1	A11	0-18	7258			CL	CL
72C00059	A2	A12	18-48	7259			CL	CL
72C00060	B1	B21	48-63	7260			C	SICL
72C00061	B2	B22	63-86	7261			C	SICL
72C00062	C1	C 1	86-107	7262				SICL
72C00063	C2	C 2	107-152	7263				SICL
72C00064	C3	C 3	152-191	7264				SICL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	1.19	(NA)
Clay, carbonate free, Weighted Average	35	% wt
Volume, >2mm, Weighted Average	23	% vol
Clay, total, Weighted Average	35	% wt
LE, Whole Soil, Summed to 1m	5	cm/m
Weighted averages based on control section: 48-86 cm

*** Primary Characterization Data ***

Pedon ID: S1972CA013008

( Contra Costa, California )

Print Date: Nov 23 2024 8:19PM

Sampled As	:	Los Osos
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0009

---

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
72C00058	0-18	A1	S														tr	3	15	--	18
72C00058	0-18	A1	GP	cl	29.4	37.0	33.6	16.8		19.9	17.1	16.1	13.8	3.0	0.6	0.1
72C00059	18-48	A2	S														tr	3	17	--	20
72C00059	18-48	A2	GP	cl	31.0	36.2	32.8			19.5	16.7	16.6	13.0	2.6	0.5	0.1
72C00060	48-63	B1	S														2	8	14	--	24
72C00060	48-63	B1	GP	sicl	37.2	48.2	14.6			31.6	16.6	7.8	6.4	0.4	--	--
72C00061	63-86	B2	S														37	7	--	--	44
72C00061	63-86	B2	GP	sicl	33.3	55.8	10.9	10.2		38.5	17.3	8.0	2.8	0.1	--	--
72C00062	86-107	C1	S														8	53	1	--	62
72C00062	86-107	C1	GP	sicl	27.1	69.8	3.1	6.3		48.8	21.0	2.2	0.7	0.2	--	--
72C00063	107-152	C2	S														2	54	31	--	87
72C00063	107-152	C2	GP	sicl	28.0	70.1	1.9			53.1	17.0	1.6	0.2	0.1	--	--
72C00064	152-191	C3	S														tr	18	65	--	83
72C00064	152-191	C3	GP	sicl	31.0	67.0	2.0			54.5	12.5	1.8	0.2	--	--	--

*** Primary Characterization Data ***

Pedon ID: S1972CA013008

( Contra Costa, California )

Print Date: Nov 23 2024 8:19PM

Sampled As	:	Los Osos
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0009

---

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	4B1c	3C2a1a		3D1		4C1		8D1	8D1
72C00058	0-18	A1	S	1.50	1.75	0.046		25.6	22.7					0.11		1.02	0.48
72C00058	0-18	A1	GP							14.1		1.038
72C00059	18-48	A2	S	1.44	1.77	0.062		29.7	26.1					0.14		1.03	0.47
72C00059	18-48	A2	GP							14.7		1.038
72C00060	48-63	B1	S	1.44	1.78	0.061		30.4	27.2					0.13		1.14	0.46
72C00060	48-63	B1	GP							17.0		1.055
72C00061	63-86	B2	S	1.39	1.78	0.058		31.2	28.1					0.11		1.22	0.50
72C00061	63-86	B2	GP							16.8		1.055
72C00062	86-107	C1	S	1.48	1.80	0.033		27.6	24.8					0.08		1.31	0.56
72C00062	86-107	C1	GP							15.1		1.055
72C00063	107-152	C2	S	1.73	1.97	0.008		20.6	19.6					0.01		1.34	0.54
72C00063	107-152	C2	GP							15.0		1.055
72C00064	152-191	C3	S	1.69	2.00	0.013		21.1	20.2					0.02		1.06	0.47
72C00064	152-191	C3	GP							14.6		1.055

---

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 - - - - - - - - - - - - - - - - - - - - - -)
				4F1	4F
72C00058	0-18	A1	GP	34.75499	13
72C00060	48-63	B1	GP	51.99988	31
72C00061	63-86	B2	GP	51.99988	28
72C00062	86-107	C1	GP	39.99991	12
72C00064	152-191	C3	GP	39.99991	12

*** Primary Characterization Data ***

Pedon ID: S1972CA013008

( Contra Costa, California )

Print Date: Nov 23 2024 8:19PM

Sampled As	:	Los Osos
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0009

---

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 - - - - -)

6B3a

6A1c

72C00058

0-18

A1

GP

0.121

1.47

12

72C00059

18-48

A2

GP

0.087

0.94

11

72C00060

48-63

B1

GP

0.042

0.49

12

72C00061

63-86

B2

GP

0.39

72C00062

86-107

C1

GP

0.35

72C00063

107-152

C2

GP

0.33

72C00064

152-191

C3

GP

0.41

---

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		6H5a			5A3a	5A8b			5C3	5C1
72C00058	0-18	A1	GP	14.4	11.6	0.4	0.5	26.9	5.0			31.9	30.1			84	89
72C00059	18-48	A2	GP	16.0	13.1	0.5	0.4	30.0	4.2			34.2	31.9			88	94
72C00060	48-63	B1	GP	18.9	17.5	0.5	0.4	37.3	3.8			41.1	42.3			91	88
72C00061	63-86	B2	GP	19.1	18.2	0.6	0.4	38.3	2.8			41.1	40.7			93	94
72C00062	86-107	C1	GP	16.5	14.8	0.5	0.4	32.2	2.8			35.0	35.6			92	90
72C00063	107-152	C2	GP	18.0	16.1	0.5	0.5	35.1	2.4			37.5	37.4			94	94
72C00064	152-191	C3	GP	16.3	14.3	0.5	0.5	31.6	2.1			33.7	32.8			94	96

*** Primary Characterization Data ***

Pedon ID: S1972CA013008

( Contra Costa, California )

Print Date: Nov 23 2024 8:19PM

Sampled As	:	Los Osos
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0009

---

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 - -)

%

72C00058

0-18

A1

GP

1

72C00059

18-48

A2

GP

2

72C00060

48-63

B1

GP

1

72C00061

63-86

B2

GP

1

72C00062

86-107

C1

GP

1

72C00063

107-152

C2

GP

1

72C00064

152-191

C3

GP

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

72C00058

0-18

A1

GP

5.9

6.4

72C00059

18-48

A2

GP

6.2

6.6

72C00060

48-63

B1

GP

6.4

6.8

72C00061

63-86

B2

GP

6.6

6.9

72C00062

86-107

C1

GP

6.7

6.9

72C00063

107-152

C2

GP

6.8

6.9

72C00064

152-191

C3

GP

6.9

7.1

*** Primary Characterization Data ***

Pedon ID: S1972CA013008

( Contra Costa, California )

Print Date: Nov 23 2024 8:19PM

Sampled As	:	Los Osos
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0009

---

Miscellaneous Data

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

(- Sat Paste Ex. -)

(- Sand -)

( Water Content )

Bulk

(- - - - Extractable Bases - - - -)

(- - - CEC8 - - -)

CO3+

(- - - pH - - -)

M+C+VC

Moist Sieved

Density

Depth

Ca

Mg

Na

K

NaOAC

BaCl2

Ca+Mg

HCO3

CaCl2

H2O

.25-2

100 kPa

200 kPa

10 kPa

Layer

(cm)

Horz

Prep

(- - - - - - - - - - - - - - - cmol(+)kg-1 - - - - - - - - - - - - - -)

mmol(+)L-1

mmol(-)L-1

1:10

1:10

(- - - - - % of <2mm - - - - -)

g cm-3

NK

72C00060

48-63

B1

GP

6.9

72C00061

63-86

B2

GP

7.1

72C00062

86-107

C1

GP

6.0

72C00063

107-152

C2

GP

5.5

72C00064

152-191

C3

GP

5.9

*** Primary Characterization Data ***

Pedon ID: S1972CA013008

( Contra Costa, California )

Print Date: Nov 23 2024 8:19PM

Sampled As	:	Los Osos
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0009

---

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

7A2i

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

72C00058

0.0-18.0

A1

fcly

MT 5

72C00058

0.0-18.0

A1

tcly

MT 3

MI 1

KK 1

72C00061

63.0-86.0

B2

fcly

MT 5

72C00061

63.0-86.0

B2

tcly

MT 4

MI 1

KK 1

72C00062

86.0-107.0

C1

fcly

MT 5

72C00062

86.0-107.0

C1

tcly

MT 3

MI 1

KK 1

72C00064

152.0-191.0

C3

tcly

MT 4

KK 2

MI 1

FRACTION INTERPRETATION:
fcly - Fine Clay <0.0002 mm	tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks