*** Taxonomy Characterization Data ***

Pedon ID: S1981CA071002

( San Bernardino, California )

Print Date: Nov 21 2024 1:55PM

Sampled as on Jun 1, 1981:	Cristobal ; Loamy-skeletal, mixed, hyperthermic Typic Haplargid
Revised to correlated:	CHUCKAWALLA ; Loamy-skeletal, mixed, hyperthermic Typic Haplargids

				United States Department of Agriculture
SSL	-	Project	CP81AZ184   COLORADO RIVER INDIAN RESERVATION (AZ-CA)	Natural Resources Conservation Service
	-	Site ID	S1981CA071002     MLRA: 31	National Soil Survey Center
	-	Pedon No.	81P0378	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		3A1a1a	8D1			4A1d
81P02049	0-3	Ek	S	11.1			0.50		88	1.49	0.004	74
81P02050	3-9	Btk	S	24.1			0.41		51			19
81P02051	9-19	Btkz1	S	4.9		1.7	1.57		84	1.26	--	49
81P02052	19-34	Btkz2	S	11.5			0.47		88			50
81P02053	34-60	Bkz	S	10.7			0.44		92	1.54	0.002	64
81P02054	60-91	C1	S	9.0			0.37		92			51
81P02055	91-132	C2	S	8.5			0.48		93	1.59	0.004	55
81P02056	132-185	2C	S	8.3			0.76		16	1.40	0.012	1

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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				6E1g	5C1	5C3			8D1			8A3a	5D2
81P02049	0-3	Ek	S	8.4		0.26				8	100*	100			0.96				2
81P02050	3-9	Btk	S	8.6		0.17				10	100*	100			0.87				1
81P02051	9-19	Btkz1	S	8.6		0.13				5	100*	100			3.31				6
81P02052	19-34	Btkz2	S	7.8		0.14				7	100*	100			0.72			7.68	23
81P02053	34-60	Bkz	S	7.8		0.15				7	100*	100			0.49			18.72	27
81P02054	60-91	C1	S	7.8		0.13				6	100*	100			0.54			16.84	30
81P02055	91-132	C2	S	8.0		0.13				7	100*	100			0.72			17.67	28
81P02056	132-185	2C	S	7.9		0.15				16	100*	100			1.19			13.34	32

^*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	2.15	(NA)
Clay, carbonate free, Weighted Average	11	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	80	% wt
Volume, >2mm, Weighted Average	45	% vol
Clay, total, Weighted Average	12	% wt
Weighted averages based on control section: 3-34 cm