*** Taxonomy Characterization Data ***

Pedon ID: 90IL081002

( Jefferson, Illinois )

Print Date: Dec 5 2025 7:01PM

Sampled as on Jun 29, 1990:	Bluford BP ; Fine, montmorillonitic Aquic Hapludalfs
Revised to correlated on Nov 1, 1991:	Bunkum ; Fine-silty, mixed, superactive, mesic Aquic Hapludalf

				United States Department of Agriculture
SSL	-	Project	CP90IL220   JEFFERSON COUNTY	Natural Resources Conservation Service
	-	Site ID	S1990IL081002   Lat: 38° 15' 60.00" north  Long: 88° 53' 58.99" west  MLRA: 113	National Soil Survey Center
	-	Pedon No.	90P0842	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
90P04937	0-15	Ap	S	15.4	8.9		0.45		7	1.39	0.012	--
90P04938	15-28	E	S	29.9	21.0		0.46		5	1.44	0.036	--
90P04939	28-38	BE	S	32.6	23.4		0.43		4	1.45	0.033	--
90P04940	38-57	Bt	S	37.9	28.0		0.49		2	1.40	0.048	--
90P04941	57-74	2Bt1	S	38.0	28.8		0.51		2	1.34	0.093	--
90P04942	74-91	2Bt2	S	27.6	19.2		0.57		3	1.40	0.054	--
90P04943	91-115	2Bt3	S	22.6	15.5		0.56		7	1.41	0.045	--
90P04944	115-144	2Bt4	S	21.8	15.4		0.56		7	1.54	0.025	--
90P04945	144-165	2Bt5	S	21.2	14.0		0.55		9	1.62	0.022	--
90P04946	165-188	3Bt6	S	22.6	15.3		0.50		11	1.62	0.026	--
90P04947	188-230	3Bt7	S	22.5	15.4		0.52		11	1.59	0.031	--
90P04948	230-250	4Bt1	S	24.3	16.8		0.57		12	1.66	0.024	tr
90P04949	250-285	4Bt2	S	24.2	16.6		0.51		13	1.62	0.028	--

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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		5A3b	8D1		5G1		5D2
90P04937	0-15	Ap	S	7.0		0.52					90	100			0.83				1
90P04938	15-28	E	S	4.7		0.17					47	95		13.5	0.63	0.45	34		2
90P04939	28-38	BE	S	4.4		0.11					33	30		15.0	0.63	0.46	55		3
90P04940	38-57	Bt	S	4.7		0.19					39	32		19.4	0.67	0.51	49		7
90P04941	57-74	2Bt1	S	4.7		0.19					41	34		18.9	0.67	0.50	46		8
90P04942	74-91	2Bt2	S	4.8		0.11					58	53		15.4	0.73	0.56	25		14
90P04943	91-115	2Bt3	S	4.9		0.10					61	46		11.5	0.67	0.51	20		16
90P04944	115-144	2Bt4	S	5.1		0.08					82	68		13.0	0.68	0.60	6		22
90P04945	144-165	2Bt5	S	6.6		0.05					99	76			0.65				27
90P04946	165-188	3Bt6	S	7.3		0.08					100*	81			0.60				26
90P04947	188-230	3Bt7	S	7.5		0.05					100*	74			0.61				26
90P04948	230-250	4Bt1	S	7.4		0.04					100*	81			0.60				26
90P04949	250-285	4Bt2	S	7.2		0.03				tr	100*	75			0.60				25

^*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	0.69	(NA)
Clay, carbonate free, Weighted Average	35	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	2	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	35	% wt
LE, Whole Soil, Summed to 1m	5	cm/m
Weighted averages based on control section: 38-88 cm