*** Taxonomy Characterization Data ***

Pedon ID: 78VA145008

( Powhatan, Virginia )

Print Date: Feb 17 2025 2:30AM

Sampled as on Jul 30, 1978:	Madison ; Clayey, kaolinitic Typic Hapludults
Revised to SSL:	(unnamed) ; Clayey, kaolinitic, thermic Typic Hapludult

				United States Department of Agriculture
SSL	-	Project	CP78VA189   SOILS OVER SAPROLITE STUDY	Natural Resources Conservation Service
	-	Site ID	S1978VA145008   Lat: 37° 32' 40.21" north  Long: 78° 0' 28.98" west	National Soil Survey Center
	-	Pedon No.	78P0502	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			4A1d			7B1a2
78P02915	0-10	Ap	S	13.6			0.37		52	1.65	0.004	5
78P02916	10-20	B	S	32.2			0.37		34			1
78P02917	20-43	Bt11	S	56.4			0.39		20	1.42	0.027	tr	38
78P02918	43-64	Bt12	S	60.9			0.42		20	1.31	0.027	tr
78P02919	64-89	Bt13	S	52.2			0.45		31	1.34	0.019	1
78P02920	89-114	Bt14	S	40.3			0.51		38	1.42	0.014	--
78P02921	114-145	Bt2	S	29.2			0.57		49	1.37	0.007	tr
78P02922	145-148	C	S	19.4			0.70		53	1.32	0.007	2
78P02923	30-32		S	6.5			0.85		58			2

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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	%
				8C1a		6A1c					5C1	5C3		5A3b	8D1		5G1		5D2
78P02915	0-10	Ap	S	5.4		1.41					56	41		3.1	0.40	0.23	3		--
78P02916	10-20	B	S	5.5		0.47					51	39		2.7	0.15	0.08	7		--
78P02917	20-43	Bt11	S	5.3		0.31					43	27		4.2	0.15	0.07	17		1
78P02918	43-64	Bt12	S	5.4		0.20					32	24		3.9	0.13	0.06	33		1
78P02919	64-89	Bt13	S	5.2		0.12					21	16		3.1	0.13	0.06	52		--
78P02920	89-114	Bt14	S	6.0		0.11					11	8			0.14				--
78P02921	114-145	Bt2	S	4.9		0.05					9	7		2.5	0.15	0.09	84		--
78P02922	145-148	C	S	5.0		0.04					10	8		2.3	0.21	0.12	83		--
78P02923	30-32		S	4.9		0.04					27	35		2.3	0.80	0.35	39		--

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Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.14	(NA)
Clay, carbonate free, Weighted Average	53	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	23	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	53	% wt
Weighted averages based on control section: 10-60 cm