*** Taxonomy Characterization Data ***

Pedon ID: 92CA055004

( Napa, California )

Print Date: Apr 25 2025 10:31AM

Sampled as on Aug 28, 1991:	Haire ; Clayey, mixed, thermic Typic Haploxerult
Revised to correlated on Apr 1, 2000:	Yokayo ; Fine, mixed, superactive, thermic Haplic Palexeralf

				United States Department of Agriculture
SSL	-	Project	RP93CA005   NAPA COUNTY	Natural Resources Conservation Service
	-	Site ID	92CA055004   Lat: 38° 13' 16.00" north  Long: 122° 21' 13.00" west  MLRA: 14	National Soil Survey Center
	-	Pedon No.	93P0021	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
				3A1a1a			8D1
93P00176	0-13	Ap	S	25.7			0.63		3
93P00177	13-36	A2	S	20.1			0.56		7
93P00178	36-53	BA	S	21.0			0.48		9
93P00179	53-104	Bt1	S	37.7			0.50		5
93P00180	104-142	Bt2	S	35.1			0.54		5

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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		6A1c	6A2d				5C1	5C3			8D1			8A3a	5D2
93P00176	0-13	Ap	S	6.2		3.18	3.04				95	78			1.09				1
93P00177	13-36	A2	S	5.9		1.17	1.15				91	73			0.96				2
93P00178	36-53	BA	S	6.0		0.80	0.83				90	73			0.79				3
93P00179	53-104	Bt1	S	5.6		0.50	0.60				98	82			0.79			1.44	6
93P00180	104-142	Bt2	S	5.5		0.38	0.45				100*	88			0.83			7.60	11

^*Extractable Ca may contain Ca from calcium carbonate or gypsum.

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Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.79	(NA)
Clay, carbonate free, Weighted Average	38	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	5	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	38	% wt
Weighted averages based on control section: 53-103 cm