*** Primary Characterization Data ***

Pedon ID: S1955CA081013

( San Mateo, California )

Print Date: Jun 7 2024 11:40PM

Sampled as on May 17, 1955:	Lobitos
Revised to correlated:	LOBITOS ; Fine-silty, mixed, mesic Typic Argixerolls

				United States Department of Agriculture
SSL	-	Project	NL40001   SSIR SAMPLES	Soil Conservation Service
	-	Site ID	S1955CA081013   Lat: 37° 24' 10.00" north  Long: 122° 22' 7.01" west  MLRA: 4	Riverside Soil Survey Laboratory
	-	Pedon No.	40A3021	Soil Laboratory
	-	General Methods 1B1A, 2A1, 2B		Riverside, California

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
40A23708	O1/O2	O1&O2	3-0
40A23709	A1	A11	0-23	55394				L
40A23710	A2	A12	23-46	55395				L
40A23711	B	B2	46-74	55396				CL
40A23712	C	C	74-86	55397				L
40A23713	Cr	CR	86

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Clay, carbonate free, Weighted Average	28	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	2	% wt
Volume, >2mm, Weighted Average	24	% vol
Clay, total, Weighted Average	28	% wt
Weighted averages based on control section: 25-86 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	3A1a1a	3A1a1a	3B1	3B1	3B1
40A23709	0-23	A1	S	l	22.2	46.7	31.1			19.6	27.1	29.0	1.7	0.2	0.2	--	--	--	--	2	--
40A23710	23-46	A2	S	l	25.1	41.9	33.0			16.1	25.8	31.0	1.7	0.2	0.1	--	--	--	--	2	--
40A23711	46-74	B	S	cl	31.1	41.9	27.0			15.8	26.1	25.5	1.2	0.2	0.1	--	--	--	--	2	--
40A23712	74-86	C	S	l	25.9	46.3	27.8			17.8	28.5	26.0	1.5	0.2	0.1	--	--	--	--	2	--

*** Primary Characterization Data ***

Pedon ID: S1955CA081013

( San Mateo, California )

Print Date: Jun 7 2024 11:40PM

Sampled As	:	Lobitos
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3021

---

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	%
										3C2a1a
40A23709	0-23	A1	S							15.1							0.68
40A23710	23-46	A2	S							15.1							0.60
40A23711	46-74	B	S							16.8							0.54
40A23712	74-86	C	S							17.0							0.66

---

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 - - - - -)

6A1a

40A23709

0-23

A1

S

2.84

40A23710

23-46

A2

S

1.44

40A23711

46-74

B

S

0.77

40A23712

74-86

C

S

0.54

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2b	6O2c	6P2a	6Q2a		6H2a
40A23709	0-23	A1	S	16.2	7.7	1.1	1.7	26.7	8.0			34.7				77
40A23710	23-46	A2	S	14.8	9.5	1.3	0.5	26.1	6.3			32.4				81
40A23711	46-74	B	S	14.6	12.0	1.4	0.5	28.5	5.9			34.4				83
40A23712	74-86	C	S	15.6	11.7	1.5	0.4	29.2	4.9			34.1				86

*** Primary Characterization Data ***

Pedon ID: S1955CA081013

( San Mateo, California )

Print Date: Jun 7 2024 11:40PM

Sampled As	:	Lobitos
USDA-SCS-Soil Survey Laboratory			;	Pedon No.  40A3021

---

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

8C1b

40A23709

0-23

A1

S

5.9

40A23710

23-46

A2

S

5.9

40A23711

46-74

B

S

5.7

40A23712

74-86

C

S

5.8

---

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

5A2a

8C1a

40A23709

0-23

A1

S

31.7

6.5

40A23710

23-46

A2

S

30.5

6.3

40A23711

46-74

B

S

34.5

6.7

40A23712

74-86

C

S

30.7

6.8