*** Taxonomy Characterization Data ***

Pedon ID: S1971CA001001

( Alameda, California )

Print Date: Apr 28 2024 11:08AM

Sampled as on Oct 3, 1971:	altamont
Revised to correlated:	unnamed ; Fine, montmorillonitic, thermic Typic Chromoxererts

				United States Department of Agriculture
SSL	-	Project	NL71CA001   CONTRA COSTA ARE	Natural Resources Conservation Service
	-	Site ID	S1971CA001001	National Soil Survey Center
	-	Pedon No.	72C0001	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

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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

4A1d

72C00002

10-53

AC

variable

1.38

72C00003

53-71

C

variable

1.34

72C00004

71-91

AC

variable

1.29

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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

%

4C1a2a

72C00001

0-28

A

GP

6.6

72C00002

10-53

AC

GP

6.8

72C00003

53-71

C

GP

7.8

72C00004

71-91

AC

GP

7.4

72C00005

91-119

AC

GP

7.8

72C00006

119-145

C

GP

8.0

72C00007

145-170

C

GP

8.1

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Pedon Calculations
Calculation Name	Result	Units of Measure
Volume, >2mm, Weighted Average	0	% vol
Weighted averages based on control section: 25-100 cm