*** Primary Characterization Data ***

Pedon ID: S2013CO029026

( Delta, Colorado )

Print Date: Dec 8 2025 12:56PM

Sampled as on Jul 9, 2013:	Unnamed ; Fine, mixed, active, mesic Ustic Haplargids
Revised to :

				United States Department of Agriculture
SSL	-	Project	C2013USCO110   Selenium - Mancos Shale Part II	Natural Resources Conservation Service
	-	Site ID	S2013CO029026   Lat: 38° 37' 21.07" north  Long: 107° 53' 19.25" west  MLRA: 34B	National Soil Survey Center
	-	Pedon No.	13N97175	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
13N11971	A	A	0-10	S2013CO029026-1			SICL	C
13N11972	Btz1	Btz1	10-25	S2013CO029026-2			SIC	C
13N11973	Btz2	Btz2	25-46	S2013CO029026-3			SIC	C
13N11974	BCtz	BCtz	46-61	S2013CO029026-4			SIC	SIC
13N11975	BCz	BCz	61-74	S2013CO029026-5			PGR-SICL	SIC
13N11976	Cr	Cr	74-89	S2013CO029026-6			WB

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Weighted Particles, 0.1-75mm, 75 mm Base	5	% wt
Volume, >2mm, Weighted Average	2	% vol
Clay, total, Weighted Average	58	% wt
Clay, carbonate free, Weighted Average	50	% wt
CEC Activity, CEC7/Clay, Weighted Average, CECd, Set 4	0.36	(NA)
Weighted averages based on control section: 10-60 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
13N11971	0-10	A	S	c	55.9	39.3	4.8		9.3	30.6	8.7	3.1	1.2	0.2	0.3	tr	3	tr	--	5	3
13N11972	10-25	Btz1	S	c	59.4	36.4	4.2		10.2	27.7	8.7	2.6	0.9	0.5	0.1	0.1	6	tr	--	8	6
13N11973	25-46	Btz2	S	c	60.5	36.9	2.6		10.1	30.0	6.9	2.1	0.4	tr	0.1	tr	tr	tr	--	tr	1
13N11974	46-61	BCtz	S	sic	54.5	40.1	5.4		4.1	31.8	8.3	3.5	1.4	0.2	0.2	0.1	6	2	--	10	8
13N11975	61-74	BCz	S	sic	49.8	43.8	6.4		6.3	33.1	10.7	5.0	1.2	0.1	0.1	tr	21	27	tr	49	48
13N11976	74-89	Cr	S														16	42	12	--	70

*** Primary Characterization Data ***

Pedon ID: S2013CO029026

( Delta, Colorado )

Print Date: Dec 8 2025 12:56PM

Sampled As	:	Unnamed		Fine, mixed, active, mesic Ustic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97175

---

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
13N11971	0-10	A	S							17.5		1.035	1.035			0.35	0.31
13N11972	10-25	Btz1	S							18.6		1.037	1.037			0.32	0.31
13N11973	25-46	Btz2	S							17.1		1.040	1.040			0.33	0.28
13N11974	46-61	BCtz	S							13.3		1.074	1.041			0.42	0.24
13N11975	61-74	BCz	S							15.4		1.067				0.34	0.31
13N11976	74-89	Cr	S							7.5		1.074	1.017

---

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
13N11971	0-10	A	S	4.01	0.14	0.14	1.4		10
13N11972	10-25	Btz1	S	3.37	0.05	0.12	0.9		18
13N11973	25-46	Btz2	S	3.09	0.05	0.20	0.7		13
13N11974	46-61	BCtz	S	1.83	0.07	3.19	0.6		8
13N11975	61-74	BCz	S	2.81	0.02	3.51	0.7		38
13N11976	74-89	Cr	S	2.68	0.10	4.63	0.6		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
13N11971	0-10	A	S	70.5*	4.3	1.7	2.4	78.9					19.3				100
13N11972	10-25	Btz1	S	71.1*	4.0	6.8	2.6	84.5					19.3				100
13N11973	25-46	Btz2	S	78.4*	4.1	6.2	1.6	90.3					20.2				100
13N11974	46-61	BCtz	S	227.8*	6.5	9.3	0.3	243.9					22.7				100
13N11975	61-74	BCz	S	283.7*	7.0	6.1	0.6	297.4					17.0				100
13N11976	74-89	Cr	S	238.6*	12.5	4.5	0.5	256.1					13.7				100

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

*** Primary Characterization Data ***

Pedon ID: S2013CO029026

( Delta, Colorado )

Print Date: Dec 8 2025 12:56PM

Sampled As	:	Unnamed		Fine, mixed, active, mesic Ustic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97175

---

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
13N11971	0-10	A	S	4.8	1.0	7.8	1.0	--	4.9	--	2.1	--	tr	--	3.5	0.3	2.6	60.8	tr	1.35	0.61	6	5
13N11972	10-25	Btz1	S	10.4	2.1	36.8	1.6	--	2.7	--	10.4	--	--	--	21.4	0.4	13.4	68.0	0.2	4.71	1.93	23	15
13N11973	25-46	Btz2	S	26.6	4.9	40.7	0.8	--	1.8	--	6.2	--	--	--	54.2	--	8.3	61.3	0.3	5.69	3.31	18	10
13N11974	46-61	BCtz	S	24.6	9.4	61.3	tr	--	2.0	--	4.7	--	--	--	78.5	0.1	7.1	55.0	0.3	6.90	4.51	26	15
13N11975	61-74	BCz	S	23.4	12.3	45.9	0.2	--	1.6	--	4.0	--	--	--	71.2	--	5.7	55.5	0.3	6.21	3.89	21	11
13N11976	74-89	Cr	S	22.7	45.4	48.6	0.6	--	1.0	--	4.4	--	--	--	103.1	0.2	7.4	51.6	0.3	7.46	3.87	15	8

---

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
13N11971	0-10	A	S		7.9	8.4	7.9			22		--
13N11972	10-25	Btz1	S		8.1	8.4	8.0			21		--
13N11973	25-46	Btz2	S		7.9	8.1	7.8			20		tr
13N11974	46-61	BCtz	S		7.8	7.9	7.7			11		16
13N11975	61-74	BCz	S		7.8	8.0	7.8			18
13N11976	74-89	Cr	S		7.9	8.0	7.8			17		27

---

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
13N11971	0-10	A	HM	0.13	10.05	390.32	1.86	0.34	7.60	45.72	28.54	154.07	5.09		13
13N11972	10-25	Btz1	HM	0.12	9.47	358.60	1.94	0.45	7.74	49.27	28.08	141.76	4.78		8
13N11973	25-46	Btz2	HM	0.12	9.62	311.81	1.92	0.38	7.73	48.22	28.34	141.24	5.25		11
13N11974	46-61	BCtz	HM	0.12	11.07	830.45	1.61	0.40	7.58	40.18	22.08	111.00	10.22		43
13N11975	61-74	BCz	HM	0.15	10.50	468.57	1.53	0.46	8.45	42.03	23.44	137.78	10.82		60
13N11976	74-89	Cr	HM	0.15	8.63	494.93	1.23	0.55	9.12	34.49	19.02	121.21	9.73		57

*** Primary Characterization Data ***

Pedon ID: S2013CO029026

( Delta, Colorado )

Print Date: Dec 8 2025 12:56PM

Sampled As	:	Unnamed		Fine, mixed, active, mesic Ustic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97175

---

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
13N11971	0-10	A	HM	36.98	556.84	22.38	0.76	1847.98	2.03	327.02		109.96	--	108.22
13N11972	10-25	Btz1	HM	37.75	517.36	20.32	0.72	1701.32	2.13	311.99		115.23	--	106.32
13N11973	25-46	Btz2	HM	37.53	484.73	20.70	0.82	1814.05	2.09	313.96		114.06	tr	109.05
13N11974	46-61	BCtz	HM	32.62	356.87	20.46	0.77	3163.06	2.03	471.81		113.80	tr	89.79
13N11975	61-74	BCz	HM	37.42	393.00	17.62	0.73	2626.39	1.80	590.57		119.45	--	98.27
13N11976	74-89	Cr	HM	34.62	344.35	14.16	0.63	2958.10	2.26	717.27		111.62	0.02	81.57

---

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
13N11971	0-10	A	HM	77131	88787	27834	19404	10812	204	3267	719	209980	350	3291	109
13N11972	10-25	Btz1	HM	78259	82164	27370	20082	10683	185	3973	620	205888	325	3279	106
13N11973	25-46	Btz2	HM	79243	83709	27855	18822	10648	187	3954	626	210824	332	3337	107
13N11974	46-61	BCtz	HM	73739	80656	26390	14050	9000	136	4044	509	187664	493	3178	94
13N11975	61-74	BCz	HM	62708	113162	24934	13945	9397	166	3436	515	175844	623	2660	89
13N11976	74-89	Cr	HM	49234	118433	18530	9909	7874	129	2506	396	130815	700	2115	65

^1,1,2,3,4,5 Multiple values present due to instrumentation or analyzed size fraction. See laboratory for more information.

*** Primary Characterization Data ***

Pedon ID: S2013CO029026

( Delta, Colorado )

Print Date: Dec 8 2025 12:56PM

Sampled As	:	Unnamed		Fine, mixed, active, mesic Ustic Haplargids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  13N97175

---

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

13N11972

10.0-25.0

Btz1

tcly

CA 2

KK 2

MI 2

QZ 2

VR 1

KK 33

CA 6

CMIX

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
CA Calcite	KK Kaolinite	MI Mica	QZ Quartz	VR Vermiculite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

INTERPRETATION (BY HORIZON):
CMIX - Mixed Clay