*** Primary Characterization Data ***

Pedon ID: S2013CO029023

( Delta, Colorado )

Print Date: Dec 7 2025 10:55PM

Sampled as on Jul 23, 2013:	unnamed ; Clayey-skeletal, mixed, active, mesic, shallow Typic Haplocambids
Revised to :

				United States Department of Agriculture
SSL	-	Project	C2013USCO110   Selenium - Mancos Shale Part II	Natural Resources Conservation Service
	-	Site ID	S2013CO029023   Lat: 38° 37' 21.07" north  Long: 107° 53' 19.25" west  MLRA: 34B	National Soil Survey Center
	-	Pedon No.	13N97172	Kellogg 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
13N11959	A	A	0-10	S2013CO029023-1			SICL	SIC
13N11960	BCz	BCz	10-28	S2013CO029023-2			PGR-CL	SIC
13N11961	C	C	28-46	S2013CO029023-3			PGRV-CL	SIC
13N11962	Cr	Cr	46-63	S2013CO029023-4			WB

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Weighted Particles, 0.1-75mm, 75 mm Base	10	% wt
Volume, >2mm, Weighted Average	6	% vol
Clay, total, Weighted Average	56	% wt
Clay, carbonate free, Weighted Average	54	% wt
CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 4	0.36	(NA)
Weighted averages based on control section: 25-46 cm

---

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
13N11959	0-10	A	S	sic	54.9	42.9	2.2		3.6	32.3	10.6	1.8	0.2	0.1	--	0.1	--	--	--	tr	--
13N11960	10-28	BCz	S	sic	58.6	40.4	1.0		2.5	33.2	7.2	0.7	0.3	tr	tr	tr	2	1	--	3	3
13N11961	28-46	C	S	sic	55.4	43.8	0.8		2.0	35.8	8.0	0.6	0.1	tr	0.1	--	4	6	1	11	11
13N11962	46-63	Cr	S														36	16	--	--	52

*** Primary Characterization Data ***

Pedon ID: S2013CO029023

( Delta, Colorado )

Print Date: Dec 7 2025 10:55PM

Sampled As	:	unnamed		Clayey-skeletal, mixed, active, mesic, shallow Typic Haplocambids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97172

---

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	%
										3C2a1a		3D1	4E2a1a1a1
13N11959	0-10	A	S							15.9		1.048	1.036			0.33	0.29
13N11960	10-28	BCz	S							15.8		1.045	1.039			0.34	0.27
13N11961	28-46	C	S							16.6		1.041	1.040			0.36	0.30
13N11962	46-63	Cr	S							17.2		1.045	1.038

---

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 - - - - -)
				4H2a	4H2a	4H2a
13N11959	0-10	A	S	1.20	0.04	1.56	0.2		5
13N11960	10-28	BCz	S	1.12	0.16	1.47	0.5		3
13N11961	28-46	C	S	1.30	0.11	0.69	0.3		3
13N11962	46-63	Cr	S	1.27	0.10	1.08	0.7		6

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				4B1a1a	4B1a1a	4B1a1a	4B1a1a						4B1a1a
13N11959	0-10	A	S	134.8*	4.0	28.3	1.2	168.3					17.9				100
13N11960	10-28	BCz	S	81.4*	7.8	84.2	1.0	174.4					20.1				100
13N11961	28-46	C	S	43.0*	10.0	47.3	0.9	101.2					19.9				100
13N11962	46-63	Cr	S	77.1*	10.0	39.0	1.0	127.1					21.4				100

^*Extractable Ca may contain Ca from calcium carbonate or gypsum., CEC7 base saturation set to 100.

*** Primary Characterization Data ***

Pedon ID: S2013CO029023

( Delta, Colorado )

Print Date: Dec 7 2025 10:55PM

Sampled As	:	unnamed		Clayey-skeletal, mixed, active, mesic, shallow Typic Haplocambids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97172

---

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 - -)		%
				4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2	4F2		4F2	4F1a1a1
13N11959	0-10	A	S	19.7	2.0	183.8	0.7	--	1.3	--	3.4	--	--	--	182.1	tr	13.0	67.9	0.8	14.35	8.19	88	56
13N11960	10-28	BCz	S	22.2	9.7	758.2	2.0	--	2.4	--	21.0	--	--	--	645.2	--	92.5	69.7	2.5	40.50	18.20	100*	190
13N11961	28-46	C	S	17.8	7.2	295.0	1.2	--	1.2	--	19.1	--	--	--	215.6	--	66.4	81.5	1.4	21.10	8.82	100*	84
13N11962	46-63	Cr	S	20.6	9.8	200.9	1.0	--	0.6	--	9.5	--	--	--	193.2	--	30.4	102.1	1.3	15.80	8.77	86	52

^*ESP set to 100, Na exceeds measured exchange capacity.

---

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
					4C1a2a	4C1a2a	4F2			4E1a1a1a1		4E2a1a1a1
13N11959	0-10	A	S		8.5	8.7	8.5			8		6
13N11960	10-28	BCz	S		8.8	8.9	8.8			6		3
13N11961	28-46	C	S		8.8	8.5	8.8			8		tr
13N11962	46-63	Cr	S		8.6	8.4	8.6			5		3

---

Trace Elements Tier 1				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
	Depth			Ag	As	Ba	Be	Cd	Co	Cr	Cu	Mn	Mo		Hg
Layer	(cm)	Horz	Prep	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg		ug/kg
				4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a		4H1a
13N11959	0-10	A	HM	0.08	11.24	220.75	1.99	0.12	6.56	47.04	20.42	215.20	1.54		3
13N11960	10-28	BCz	HM	0.09	11.89	180.72	2.23	0.09	6.32	45.16	18.88	180.20	1.41		17
13N11961	28-46	C	HM	0.09	13.32	151.33	2.24	0.11	7.14	47.98	20.49	181.33	1.19		20
13N11962	46-63	Cr	HM	0.11	12.63	165.11	2.34	0.08	6.73	47.44	17.98	170.19	1.30		36

*** Primary Characterization Data ***

Pedon ID: S2013CO029023

( Delta, Colorado )

Print Date: Dec 7 2025 10:55PM

Sampled As	:	unnamed		Clayey-skeletal, mixed, active, mesic, shallow Typic Haplocambids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97172

---

Trace Elements Tier 2				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-
	Depth			Ni	P	Pb	Sb	Se	Sn	Sr	Tl	V	W	Zn
Layer	(cm)	Horz	Prep	mg/kg	mg/kg	mg/kg	mg/kg	ug/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg
				4H1a	4H1a	4H1a	4H1a	4H1a	4H1a	4H1a		4H1a	4H1a	4H1a
13N11959	0-10	A	HM	24.53	560.73	19.53	0.49	718.63	2.57	170.24		80.79	--	89.92
13N11960	10-28	BCz	HM	23.96	492.77	20.12	0.44	1289.64	3.28	146.46		76.26	tr	90.66
13N11961	28-46	C	HM	25.49	552.59	18.77	0.45	1215.35	2.80	105.56		80.52	0.01	99.41
13N11962	46-63	Cr	HM	25.15	503.11	21.56	0.46	512.95	3.61	142.64		80.17	--	100.91

---

Major Elements				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
	Depth			Al	Ca	Fe	K	Mg	Mn	Na	P	Si	Sr	Ti	Zr
Layer	(cm)	Horz	Prep	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg
				4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b	4H1b
13N11959	0-10	A	HM	62658	37379	21511	16112	8621	226	6991	519	201085	139	2905	113
13N11960	10-28	BCz	HM	90750	26364	26804	22047	12771	229	20115	632	242452	165	3480	143
13N11961	28-46	C	HM	82098	23488	26872	22092	14130	228	11811	824	165725	116	3564	136
13N11962	46-63	Cr	HM	86394	22995	25204	20574	11373	200	9563	640	229875	145	3333	130

^1,1,2,3 Multiple values present due to instrumentation or analyzed size fraction. See laboratory for more information.

*** Primary Characterization Data ***

Pedon ID: S2013CO029023

( Delta, Colorado )

Print Date: Dec 7 2025 10:55PM

Sampled As	:	unnamed		Clayey-skeletal, mixed, active, mesic, shallow Typic Haplocambids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97172

---

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

7A1b1

7A2a

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

13N11960

10.0-28.0

BCz

tcly

KK 3

MI 2

MT 2

QZ 2

KK 36

CMIX

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	MT Montmorillonite	QZ Quartz

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

INTERPRETATION (BY HORIZON):
CMIX - Mixed Clay