*** Taxonomy Characterization Data ***

Pedon ID: S1968AZ003003

( Cochise, Arizona )

Print Date: Jan 30 2025 4:53PM

Sampled as on Oct 14, 1968:	Casto
Revised to correlated:	Casto ; Fine-loamy, mixed, superactive, thermic Aridic Haplustalfs

				United States Department of Agriculture
SSL	-	Project	NL68AZ023   E.PIMA-SANTA CRU	Natural Resources Conservation Service
	-	Site ID	S1968AZ003003   Lat: 31° 27' 5.00" north  Long: 110° 26' 24.01" west	National Soil Survey Center
	-	Pedon No.	68C0137	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

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			4A1f
68C00995	0-3	A	S	13.5			0.63		89			55
68C00996	3-13	Bt11	S	21.8			0.53		58	1.34	0.049	11
68C00997	13-28	Bt12	S	33.7			0.50		55	1.30	0.056	13
68C00998	28-41	Bt13	S	28.8			0.55		66	1.23	0.057	22
68C00999	41-56	Bt2	S	21.7			0.61		66	1.21	0.033	20
68C01000	56-71	B1	S	16.9			0.77		82	1.21	0.018	50
68C01001	71-114	B2	S	13.7			0.88		84	1.26	0.005	54
68C01002	114-152	B3	S	15.5			0.95		81			50

---

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		6A1a				6E1a	5C1	5C3		5A3b	8D1		5G1	8A1a	5D2
68C00995	0-3	A	S	6.2		1.27					100*	100			1.36			0.31	1
68C00996	3-13	Bt11	S	6.1		1.24					92	100			1.22				1
68C00997	13-28	Bt12	S	5.4		0.47					100*	100		53.2	1.16	1.58	tr	0.28	1
68C00998	28-41	Bt13	S	5.4		0.36					100*	100		50.2	1.28	1.74	1	0.29	1
68C00999	41-56	Bt2	S	5.8		0.20					100*	100			1.67			0.23	1
68C01000	56-71	B1	S	6.3							100*	100			2.24			0.36	2
68C01001	71-114	B2	S	7.8						2	100*	100			2.64			0.44	2
68C01002	114-152	B3	S	7.8						5	100*	100			2.70			0.46	2

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

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	1.32	(NA)
Clay, carbonate free, Weighted Average	27	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	61	% wt
Volume, >2mm, Weighted Average	17	% vol
Clay, total, Weighted Average	27	% wt
Weighted averages based on control section: 3-53 cm