*** Taxonomy Characterization Data ***

Pedon ID: S1981CA071001

( San Bernardino, California )

Print Date: Feb 16 2025 5:49AM

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	S1981CA071001   Lat: 34° 9' 28.01" north  Long: 114° 21' 12.00" west  MLRA: 31	National Soil Survey Center
	-	Pedon No.	81P0377	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
81P02041	0-2	Ek	S	13.1			0.49		80	1.31	0.006	60
81P02042	2-4	BAtk	S	21.4			0.44		62			30
81P02043	4-20	Bt	S	12.4			0.62		89			55
81P02044	20-34	Bk11	S	9.0			0.57		88	1.48	0.001	49
81P02045	34-56	Bk12	S	9.5			0.43		95			69
81P02046	56-76	Bk2	S	7.3			0.47		94			59
81P02047	76-105	Bk3	S	8.1			0.41		95			62
81P02048	105-150	Bk4	S	6.9			0.41		94	1.74	--	59

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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
81P02041	0-2	Ek	S	8.6		0.20				5	100*	100			1.06				2
81P02042	2-4	BAtk	S	8.7		0.14				8	100*	100			0.99				3
81P02043	4-20	Bt	S	8.8		0.12				5	100*	100			1.36				8
81P02044	20-34	Bk11	S	8.1		0.12				5	100*	100			0.86			13.32	2
81P02045	34-56	Bk12	S	7.9		0.12				7	100*	100			0.55			16.12	60
81P02046	56-76	Bk2	S	7.9		0.13				5	100*	100			0.60			14.71	28
81P02047	76-105	Bk3	S	7.9		0.13				6	100*	100			0.57			14.17	18
81P02048	105-150	Bk4	S	8.0		0.13				6	100*	100			0.54			11.34	24

^*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	0.91	(NA)
Clay, carbonate free, Weighted Average	11	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	90	% wt
Volume, >2mm, Weighted Average	58	% vol
Clay, total, Weighted Average	11	% wt
Weighted averages based on control section: 2-52 cm