*** Taxonomy Characterization Data ***

Pedon ID: 91TX607002

( Edwards, Texas )

Print Date: Jan 29 2025 6:10PM

Sampled as on Feb 24, 1991:	Rio Diablo ; Fine, mixed, thermic Aridic Haplustolls
Revised to :

				United States Department of Agriculture
SSL	-	Project	CP91TX128   EDWARDS PLATEAU	Natural Resources Conservation Service
	-	Site ID	91TX607002   Lat: 30° 13' 45.00" north  Long: 100° 39' 49.00" west  MLRA: 81B	National Soil Survey Center
	-	Pedon No.	91P0512	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
91P02946	0-26	A	S	46.9		5.5	0.47		7			2
91P02947	26-39	BAw	S	49.1		8.3	0.43		7	1.13	0.087	2
91P02948	39-56	Bw1	S	49.9		8.3	0.42		8	1.28	0.090	2
91P02949	56-83	Bw2	S	49.1		8.2	0.43		9	1.32	0.067	3
91P02950	83-109	Bk	S	47.9		2.5	0.43		26	1.35	0.051	11
91P02951	109-161	2Bk	S	44.5		13.0	0.39		56	1.15	0.030	37
91P02952	161-200	2BCk	S	15.3		7.3	0.43		54	1.44	--	37

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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
91P02946	0-26	A	S	8.0		1.94				18	100*	100			0.73			0.47	tr
91P02947	26-39	BAw	S	8.1		1.40				20	100*	100			0.67			0.42	1
91P02948	39-56	Bw1	S	8.1		1.15				21	100*	100			0.64				1
91P02949	56-83	Bw2	S	8.1		0.92				23	100*	100			0.65				1
91P02950	83-109	Bk	S	7.8		0.66				26	100*	100			0.28				2
91P02951	109-161	2Bk	S	8.1		0.38				45	100*	100			0.33			0.42	2
91P02952	161-200	2BCk	S	8.2		0.14				77	100*	100			1.67				1

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

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Pedon Calculations
Calculation Name	Result	Units of Measure
Clay, carbonate free, Weighted Average	42	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	12	% wt
Clay, total, Weighted Average	49	% wt
CEC Activity, CEC7/Clay, Weighted Average	0.57	(NA)
Weighted averages based on control section: 25-100 cm