*** Taxonomy Characterization Data ***

Pedon ID: S1955CA081014

( San Mateo, California )

Print Date: Nov 21 2024 1:25PM

Sampled as on May 18, 1955:	Lobitos
Revised to correlated:	Lobitos ; Fine, mixed, mesic Pachic Ultic Haploxerolls

				United States Department of Agriculture
SSL	-	Project	NL40001   SSIR SAMPLES	Soil Conservation Service
	-	Site ID	S1955CA081014   Lat: 37° 22' 54.99" north  Long: 122° 23' 36.00" west  MLRA: 4	Riverside Soil Survey Laboratory
	-	Pedon No.	40A3031	Soil Laboratory
	-	General Methods 1B1A, 2A1, 2B		Riverside, California

---

Taxonomy Tier 1				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-
					Fine	CaCO3	1500		.1-75	Bulk	Cole	Vol	Resist
				Clay	Clay	Clay	kPa	Clay	mm	Den	Whole	% of	Min
	Depth			<.002	<.0002	<.002	/Clay	Est	Frac	33 kPa	Soil	Whole	%
Layer	(cm)	Horz	Prep	(---------% of <2 mm-------)				(-------- % --------)		g cm-3	cm cm-1
				3A1a1a
40A23770	0-20	A1	S	36.0			0.49		20			--
40A23771	20-38	A2	S	37.9			0.53		18			--
40A23772	38-71	B	S	42.0			0.63		11			--
40A23773	71-91	C	S	34.7			0.81		9			--

---

Taxonomy Tier 2

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

pH

pH

Org

Tot

Al+½ Fe

CO3 as

(--- Base Sat ---)

NZ

ECEC

CEC7

ECEC

Al

Depth

H2O

NaF

C

C

Oxal

ODOE

CaCO3

NH4

Bases

P Ret

cmol(+)

/Clay

/Clay

Sat

E C

ESP

Layer

(cm)

Horz

Prep

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

kg -1

%

dS m-1

%

6A1a

40A23770

0-20

A1

S

3.84

73

40A23771

20-38

A2

S

2.42

76

40A23772

38-71

B

S

1.01

82

40A23773

71-91

C

S

0.69

81

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Clay, carbonate free, Weighted Average	39	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	12	% wt
Volume, >2mm, Weighted Average	33	% vol
Clay, total, Weighted Average	39	% wt
Weighted averages based on control section: 25-91 cm