*** Taxonomy Characterization Data ***

Pedon ID: 74CA041008

( Marin, California )

Print Date: Nov 23 2024 8:15PM

Sampled as on May 30, 1974:	unnamed ; Fine, mixed, isomesic Aquic Haploxerults
Revised to correlated on Sep 1, 1996:	(unnamed) ; Fine-loamy, mixed, superactive, mesic Ultic Haploxeralf

				United States Department of Agriculture
SSL	-	Project	NL74CA002   MARIN CO	Natural Resources Conservation Service
	-	Site ID	S1974CA041008     MLRA: 15	National Soil Survey Center
	-	Pedon No.	74C0019	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			4A1d
74C00123	0-23	A1	S	19.5			0.50		33	1.32	0.017	1
74C00124	23-36	A2	S	20.2			0.37		32			1
74C00125	36-50	A3	S	20.6			0.35		32	1.32	0.015	1
74C00126	50-60	A4	S	14.5			0.49		30			1
74C00127	60-76	E1	S	7.8			0.54		30			1
74C00128	76-86	E2	S	9.9			0.55		32	1.58	0.016	1
74C00129	86-97	Bt1	S	35.1			0.46		17	1.46	0.080	tr
74C00130	97-127	Bt2	S	32.2			0.49		18			tr
74C00131	127-147	Bt3	S	37.9			0.45		11			tr
74C00132	147-190	C	S	14.0			0.59		36	1.82	0.040	tr
74C00133	0-0	R	S	7.5			0.71		78	2.18	0.008	52

---

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					5C1	5C3		5A3b	8D1		5G1		5D2
74C00123	0-23	A1	S	5.1		3.92					57	42		10.9	0.96	0.56	1		1
74C00124	23-36	A2	S	5.2		1.97					49	35		7.2	0.71	0.36	3		1
74C00125	36-50	A3	S	5.6		1.55					52	40			0.65				2
74C00126	50-60	A4	S	5.7		1.18					54	36			0.81				3
74C00127	60-76	E1	S	5.8		0.31					56	42			0.79				3
74C00128	76-86	E2	S	5.5		0.17					46	48		4.2	0.84	0.42	10		2
74C00129	86-97	Bt1	S	5.0		0.33					58	50		18.3	0.68	0.52	25		3
74C00130	97-127	Bt2	S	4.8		0.23					58	51		25.9	0.99	0.80	29		3
74C00131	127-147	Bt3	S	4.8		0.23					66	61		32.9	1.05	0.87	20		4
74C00132	147-190	C	S	5.1							82	75		20.4	1.69	1.46	5		4
74C00133	0-0	R	S	5.3							82	69		17.3	2.63	2.31	7		4

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.93	(NA)
Clay, carbonate free, Weighted Average	34	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	17	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	34	% wt
Weighted averages based on control section: 86-136 cm