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*** Taxonomy Characterization Data ***

Pedon ID: S1959CA001008

( Alameda, California )

Print Date: Apr 28 2025 6:28AM

Sampled as on May 30, 1959:	Vallecitos
Revised to correlated:	VALLECITOS ; Fine, smectitic, thermic Lithic Ruptic-Xerochreptic Haploxeralfs

				United States Department of Agriculture
SSL	-	Project	NL40001 SSIR SAMPLES	Soil Conservation Service
	-	Site ID	S1959CA001008 Lat: 37° 30' 46.01" north Long: 121° 32' 43.01" west MLRA: 15	Riverside Soil Survey Laboratory
	-	Pedon No.	40A3025	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

40A23728	0-4	A1	S	13.1			0.49		43			19
40A23729	4-15	A2	S	10.7			0.54		44			23
40A23730	15-30	B1	S	37.1			0.31		27			5
40A23731	30-41	B2	S	37.5			0.29		27			5

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												8A1a

40A23728	0-4	A1	S			2.06						75						0.90
40A23729	4-15	A2	S			0.95						79						0.30
40A23730	15-30	B1	S			0.60						87						0.30
40A23731	30-41	B2	S			0.41						95						0.30

Pedon Calculations
Calculation Name	Result	Units of Measure

Clay, carbonate free, Weighted Average	37	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	27	% wt
Volume, >2mm, Weighted Average	5	% vol
Clay, total, Weighted Average	37	% wt

Weighted averages based on control section: 25-41 cm

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