*** Primary Characterization Data ***

Pedon ID: S68CA017026

( El Dorado, California )

Print Date: Feb 17 2025 2:36AM

Sampled as on Aug 6, 1968:	Elmira
Revised to correlated:	Meeks ; Coarse-loamy, mixed, superactive, frigid Ultic Haploxeralfs

				United States Department of Agriculture
SSL	-	Project	NL68CA017   TAHOE BASIN	Natural Resources Conservation Service
	-	Site ID	68CA693-006   Lat: 38° 54' 6.45" north  Long: 119° 57' 2.13" west  MLRA: 22	National Soil Survey Center
	-	Pedon No.	68C0075	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
68C00602	O	O1	0-0	68602
68C00603	A11	A11	0-4	68603			LCOS	LCOS
68C00604	A12	A12	4-13	68604			LCOS	LCOS
68C00605	A2	A3	13-28	68605			LCOS	LCOS
68C00606	Bt	B1 t	28-48	68606			LCOS	LCOS
68C00607	2Bt	2 B21t	48-74	68607			COSL	LCOS
68C00608	3Bt1	3 B22t	74-89	68608			COSL	LCOS
68C00609	3Bt2	3 B31t	89-100	68609			LCOS	LCOS
68C00610	3Bt3	3 B32t	100-130	68610			LCOS	LCOS
68C00611	4Bq	4 C 1sI	130-160	68611			COS	LCOS
68C00612	4C	4 C 2	160-175	68612			COS	COS
68C00613	A	A	0-28	68613

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.66	(NA)
Clay, carbonate free, Weighted Average	7	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	81	% wt
Volume, >2mm, Weighted Average	23	% vol
Clay, total, Weighted Average	7	% wt
Weighted averages based on control section: 25-100 cm

*** Primary Characterization Data ***

Pedon ID: S68CA017026

( El Dorado, California )

Print Date: Feb 17 2025 2:36AM

Sampled As	:	Elmira
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0075

---

PSDA  &  Rock Fragments				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-
					(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)					( Rock Fragments   (mm) )
				Lab	Clay	Silt	Sand	Fine	CO3	Fine	Coarse	VF	F	M	C	VC	(- - - - - - - - Weight - - - - - - - -)				>2 mm
				Text-	<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1	2	5	20	.1-	wt %
	Depth			ure	.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2	-5	-20	-75	75	whole
Layer	(cm)	Horz	Prep		(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)												(- - - - - - - % of <75mm - - - - - -)				soil
				3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3B1	3B1	3B1
68C00602	0-0	O	S														--	--	--
68C00603	0-4	A11	S	lcos	5.2	10.6	84.2			6.0	4.6	4.0	13.1	12.5	26.1	28.5	7	5	8	82	20
68C00604	4-13	A12	S	lcos	5.3	11.9	82.8			6.8	5.1	5.3	16.2	13.3	24.8	23.2	10	6	6	79	22
68C00605	13-28	A2	S	lcos	6.0	12.7	81.3			7.2	5.5	6.6	20.1	15.2	23.3	16.1	10	7	7	76	24
68C00606	28-48	Bt	S	lcos	6.7	12.5	80.8			7.6	4.9	7.1	20.8	16.0	23.2	13.7	6	3	12	77	21
68C00607	48-74	2Bt	S	lcos	7.4	12.6	80.0	--	--	8.0	4.6	7.0	21.3	16.4	22.8	12.5	4	3	36	83	50
68C00608	74-89	3Bt1	S	lcos	8.4	8.6	83.0			5.0	3.6	5.2	16.5	13.9	28.7	18.7	6	3	17	82	26
68C00609	89-100	3Bt2	S	lcos	5.9	7.8	86.3			4.9	2.9	4.7	14.9	14.4	34.8	17.5	12	7	8	83	27
68C00610	100-130	3Bt3	S	lcos	4.4	8.5	87.1			4.5	4.0	6.4	21.5	17.5	30.5	11.2	7	4	15	84	26
68C00611	130-160	4Bq	S	lcos	4.9	8.5	86.6			4.1	4.4	8.4	27.7	20.7	21.9	7.9	6	4	26	84	36
68C00612	160-175	4C	S	cos	4.3	7.0	88.7			2.9	4.1	4.2	20.3	17.5	26.3	20.4	14	9	12	86	35
68C00613	0-28	A	S														9	6	--

---

Bulk Density  &  Moisture				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(Bulk Density)		Cole	(- - - - - - - - - - - Water Content - - - - - - - - - - -)					( Air Dry-Oven Dry )		WRD	Aggst
				33	Oven	Whole	6	10	33	1500	1500 kPa	(- - - - Ratio - - - -)		Whole	Stabl	(- - Ratio/Clay - -)
	Depth			kPa	Dry	Soil	kPa	kPa	kPa	kPa	Moist		Corrected	Soil	2-0.5mm	CEC7	1500 kPa
Layer	(cm)	Horz	Prep	(- - - g cm-3 - - -)			(- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -)							cm3 cm-3	%
				4A1f	4A1h				4B1c	3C2a1a		3D1		4C1		8D1	8D1
68C00602	0-0	O	S									1.007
68C00603	0-4	A11	S	0.52	0.65	0.073			31.9	5.0		1.007		0.13		2.77	0.96
68C00604	4-13	A12	S	1.22	1.23	0.002			8.5	3.8		1.007		0.05		1.94	0.72
68C00605	13-28	A2	S	1.35	1.35	--			7.6	4.0		1.007		0.04		1.27	0.67
68C00606	28-48	Bt	S	1.46	1.46	--			8.3	3.8		1.007		0.06		0.85	0.57
68C00607	48-74	2Bt	S	1.61	1.61	--			7.5	3.8		1.007		0.04		0.58	0.51
68C00608	74-89	3Bt1	S	1.48	1.48	--			8.4	4.2		1.007		0.05		0.46	0.50
68C00609	89-100	3Bt2	S	1.47	1.47	--			8.0	3.3		1.007		0.06		0.59	0.56
68C00610	100-130	3Bt3	S	1.36	1.36	--			11.7	2.9		1.005		0.10		0.84	0.66
68C00611	130-160	4Bq	S	1.53	1.53	--			11.5	3.2		1.005		0.10		0.73	0.65
68C00612	160-175	4C	S	1.63	1.63	--			9.9	3.3		1.005		0.08		0.86	0.77
68C00613	0-28	A	S							4.1		1.005

*** Primary Characterization Data ***

Pedon ID: S68CA017026

( El Dorado, California )

Print Date: Feb 17 2025 2:36AM

Sampled As	:	Elmira
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0075

---

Water Content

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

(- - Atterberg - -)

(- - - - - Bulk Density - - - - -)

(- - - - - - - - - - - - - - - - - - - - - - - Water Content - - - - - - - - - - - - - - - - - - - - -)

(- - - Limits - - -)

Field

Recon

Recon

Field

Recon

(- - - - - - - - - - - - - - Sieved Samples - - - - - - - - - - - - -)

LL

PI

33

Oven

33

6

10

33

100

200

500

Depth

kPa

Dry

kPa

kPa

kPa

kPa

kPa

kPa

kPa

Layer

(cm)

Horz

Prep

pct <0.4mm

(- - - - - - - - g cm-3 - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - - - - - - -)

4F1

4F

68C00603

0-4

A11

S

NP

NP

68C00605

13-28

A2

S

NP

NP

68C00606

28-48

Bt

S

NP

NP

68C00608

74-89

3Bt1

S

NP

NP

68C00609

89-100

3Bt2

S

NP

NP

68C00612

160-175

4C

S

NP

NP

---

Carbon  &  Extractions				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-
				(- - - - - Total - - - - -)			Est	OC	C/N	(- - - Dith-Cit Ext - - -)			(- - - - - - Ammonium Oxalate Extraction - - - - - -)						(- - - Na Pyro-Phosphate - - -)
	Depth			C	N	S	OC	(WB)	Ratio	Fe	Al	Mn	Al+½Fe	ODOE	Fe	Al	Si	Mn	C	Fe	Al	Mn
Layer	(cm)	Horz	Prep	(- - - - - - - - - - % of <2 mm - - - - - - - - - -)						(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)								mg kg-1	(- - - - - - % of < 2mm - - - - -)
					6B1a			6A1a		6C2a				8J	6C9a	6G12	6V2	6D5b
68C00603	0-4	A11	S		0.119			3.48	29	2.1			0.65	0.32	0.79	0.25	0.02	461.0
68C00604	4-13	A12	S		0.063			1.78	28	2.2
68C00605	13-28	A2	S		0.042			1.01	24	2.8
68C00606	28-48	Bt	S					0.59		2.9			0.31	0.07	0.27	0.17	0.03	190.0
68C00607	48-74	2Bt	S					0.21		3.0
68C00608	74-89	3Bt1	S					0.11		2.4
68C00609	89-100	3Bt2	S					0.11		1.7			0.11	0.03	0.07	0.07	0.02	31.0
68C00610	100-130	3Bt3	S					0.13		1.8
68C00611	130-160	4Bq	S							1.9
68C00612	160-175	4C	S							2.2
68C00613	0-28	A	S		0.066			1.52

*** Primary Characterization Data ***

Pedon ID: S68CA017026

( El Dorado, California )

Print Date: Feb 17 2025 2:36AM

Sampled As	:	Elmira
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0075

---

CEC  &  Bases				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(- - - - - - NH4OAC Extractable Bases - - - - -)								CEC8	CEC7	ECEC		(- - - - Base - - - -)
								Sum	Acid-	Extr	KCl	Sum	NH4	Bases	Al	(- Saturation -)
	Depth			Ca	Mg	Na	K	Bases	ity	Al	Mn	Cats	OAC	+Al	Sat	Sum	NH4OAC
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)							mg kg-1	(- - - - cmol(+) kg-1 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2e	6O2d	6P2a	6Q2a		6H2a			5A3a	5A6a			5C3	5C1
68C00603	0-4	A11	S	6.6	0.5	0.1	0.2	7.4	7.7			15.1	14.4			49	51
68C00604	4-13	A12	S	5.2	0.4	0.1	0.2	5.9	6.9			12.8	10.3			46	57
68C00605	13-28	A2	S	3.7	0.3	tr	0.2	4.2	4.9			9.1	7.6			46	55
68C00606	28-48	Bt	S	2.7	0.3	tr	0.2	3.2	4.5			7.7	5.7			42	56
68C00607	48-74	2Bt	S	2.0	0.3	0.1	0.2	2.6				2.6	4.3			100	60
68C00608	74-89	3Bt1	S	2.1	0.3	0.1	0.3	2.8				2.8	3.9			100	72
68C00609	89-100	3Bt2	S	1.7	0.3	0.1	0.2	2.3				2.3	3.5			100	66
68C00610	100-130	3Bt3	S	1.8	0.3	tr	0.2	2.3				2.3	3.7			100	62
68C00611	130-160	4Bq	S	1.7	0.4	0.1	0.2	2.4				2.4	3.6			100	67
68C00612	160-175	4C	S	1.6	0.6	0.1	0.1	2.4				2.4	3.7			100	65

---

Salt

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

-19-

-20-

(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)

1:2

Total

Elec

Elec

Exch

Depth

Ca

Mg

Na

K

CO3

HCO3

F

Cl

PO4

Br

OAC

SO4

NO2

NO3

H2O

Salts

Cond

Cond

Na

SAR

Layer

(cm)

Horz

Prep

(- - - - - mmol(+) L-1 - - - - -)

(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)

(- - - - % - - - -)

(- - dS m-1 - -)

%

68C00603

0-4

A11

S

1

68C00604

4-13

A12

S

1

68C00605

13-28

A2

S

--

68C00606

28-48

Bt

S

--

68C00607

48-74

2Bt

S

2

68C00608

74-89

3Bt1

S

3

68C00609

89-100

3Bt2

S

3

68C00610

100-130

3Bt3

S

--

68C00611

130-160

4Bq

S

3

68C00612

160-175

4C

S

3

*** Primary Characterization Data ***

Pedon ID: S68CA017026

( El Dorado, California )

Print Date: Feb 17 2025 2:36AM

Sampled As	:	Elmira
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0075

---

pH  &  Carbonates				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-
				(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)						(- - Carbonate - -)		(- - Gypsum - - -)
					CaCl2					As CaCO3		As CaSO4*2H2O		Resist
	Depth				0.01M	H2O	Sat			<2mm	<20mm	<2mm	<20mm	ohms
Layer	(cm)	Horz	Prep	KCl	1:2	1:1	Paste	Oxid	NaF	(- - - - - - - - - - - - % - - - - - - - - - - -)				cm-1
					8C1e	8C1a			4C1a1a1
68C00603	0-4	A11	S		5.0	5.7			8.8
68C00604	4-13	A12	S		5.3	6.0
68C00605	13-28	A2	S		5.6	6.3
68C00606	28-48	Bt	S		5.4	6.2			9.3
68C00607	48-74	2Bt	S		5.5	6.2
68C00608	74-89	3Bt1	S		5.6	6.2
68C00609	89-100	3Bt2	S		5.6	6.3			8.5
68C00610	100-130	3Bt3	S		5.6	6.2
68C00611	130-160	4Bq	S		5.5	6.2
68C00612	160-175	4C	S		5.6	6.2

---

Phosphorus

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

(- - - - - - - - - - - - - - - - - - - - - - - Phosphorus - - - - - - - - - - - - - - - - - - - - -)

KCl

Melanic

NZ

Acid

Anion Exch Resin

Bray

Bray

Olsen

H2O

Citric

Mehlich

Extr

Depth

Index

Oxal

Available

Capacity

1

2

Acid

III

NO3

Layer

(cm)

Horz

Prep

%

(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)

6S8a

68C00603

0-4

A11

S

321.0

68C00606

28-48

Bt

S

70.0

68C00609

89-100

3Bt2

S

31.0

*** Primary Characterization Data ***

Pedon ID: S68CA017026

( El Dorado, California )

Print Date: Feb 17 2025 2:36AM

Sampled As	:	Elmira
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0075

---

Clay Mineralogy (<.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Elemental

EGME

Inter

SiO2

Al2O3

Fe2O3

MgO

CaO

K2O

Na2O

Retn

preta

Depth

Fract

7A2e

tion

Layer

(cm)

Horz

ion

( - - - - - - - - - peak size - - - - - - - - - - )

(- - - - - - - - - % - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)

mg g-1

68C00603

0.0-4.0

A11

tcly

VR 3

KK 3

68C00605

13.0-28.0

A2

tcly

VR 3

KK 3

68C00606

28.0-48.0

Bt

tcly

VR 3

KK 3

MI 2

68C00607

48.0-74.0

2Bt

tcly

KK 3

VR 2

MI 1

68C00608

74.0-89.0

3Bt1

tcly

KK 3

VR 1

68C00612

160.0-175.0

4C

tcly

KK 3

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	VR Vermiculite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: S68CA017026

( El Dorado, California )

Print Date: Feb 17 2025 2:36AM

Sampled As	:	Elmira
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0075

---

Sand - Silt Mineralogy (2.0-0.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Optical

EGME

Inter

Tot Re

Grain Count

Retn

preta

Depth

Fract

7B1a2

tion

Layer

(cm)

Horz

ion

( - - - - - - - - peak size - - - - - - - - - )

(- - - - - - - - % - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -)

mg g-1

68C00603

0.0-4.0

A11

vfs

OT 98

GS 2

68C00603

0.0-4.0

A11

fs

OT 99

GS tr

68C00606

28.0-48.0

Bt

vfs

OT 98

GS 2

68C00606

28.0-48.0

Bt

fs

OT 99

GS tr

68C00609

89.0-100.0

3Bt2

vfs

OT 99

GS tr

68C00609

89.0-100.0

3Bt2

fs

OT 99

FRACTION INTERPRETATION:
vfs - Very Fine Sand 0.05-0.1 mm	fs - Fine Sand 0.1-0.25 mm

MINERAL INTERPRETATION:
GS Glass	OT Other