IDENTIFIERS

Current Taxon Name (Soil Name): Opolis

OSD

Series Extent

User Site ID: 1992MO097010

User Pedon ID: 1992MO097010

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - MCL

Lab Pedon # - M9209710

NCSS Pedon Lab Data NASIS Record ID - 33283

Print Date: 2/16/2025

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 37.2727778

Std. Longitude: -94.6172222

Datum: WGS84

Township: T29N

Range: R34W

Section: 3

PLSS Details: 4000 feet N and 100 feet E of the SW corner

Location Description: NW1/4 S1/3 SEC 3, T29N R34W (4000 ft. North 100 ft. East from SW corner Sec3)

Map Unit: 40023—Opolis silt loam, 1 to 3 percent slopes

State: Missouri

County: MO097—Jasper

MLRA: 112—Cherokee Prairies

Non-MLRA Soil Survey Area: MO097—Jasper County, Missouri

PEDON

Describers Name: Alan Peer, Drexel Atkinson Jr, Kevin Hess

Current Taxonomic Class: Fine-silty, mixed, thermic Albaquic Hapludalfs

Current Taxon Kind: taxadjunct

Pedon Type: taxadjunct to the series

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Correlated Information:

Soil Name - Opolis

PSC - 25 to 76 cm.

Classificaton Date - 4/18/2012

Moisture Class - udic

Sampled As Information:

Soil Name - Opolis

Classificaton Date - 6/24/1992

Dynamic Soil Properties:

Erosion Class - 2

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: upland

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: medium

Drainage Class: moderately well

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 6/24/1992 (actual site observation date)

Air Photo ID: 11

Surface Cover Properties:

Site Obs. Cover Kind 1 - crop cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: wind and water erosion

Pedon Horizon Lab Results - 1
Horizon	Top Depth	Bottom Depth	Sample ID	Data Collector	Total Clay	CaCO3 Clay	Total Silt	Fine Silt	Co. Silt	Total Sand	Total Sand Method	VC Sand	Co. Sand	Med. Sand	Fine Sand	VF Sand	VF Sand Method	Texture Class - Field Lab	Rubbed Fiber	Unrubbed Fiber	pH H2O
	cm	cm			%	%	%	%	%	%		%	%	%	%	%			%	%
Ap E 2Bt1 2Bt2 2Bt3 3Bt4 3Bt5 3Bt6 3Bt7	0 20 25 33 41 48 79 109 135	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	7.6 7.2 6.8 6.4 6.4 6.8 6 5.8 5.6

Pedon Horizon Lab Results - 2
Horizon	Top Depth	Bottom Depth	Sample ID	pH CaCl2	pH NaF	pH Ox	Delta pH	LL	PL	PI	Atter. Samp. Cond.	COLE	Pot. Acidity	Ca + Mg - Meh 2	K	Ca + Mg - Sat. Paste	KCl Extract. Acidity	Base Sat. - Meh 2	CEC-7	CEC-8.2
	cm	cm						%	%	%		cm/cm	meq/100g	cmol(+)/kg	cmol(+)/kg	mmol(+)/l	cmol(+)/kg	%	cmol(+)/kg	cmol(+)/kg
Ap E 2Bt1 2Bt2 2Bt3 3Bt4 3Bt5 3Bt6 3Bt7	0 20 25 33 41 48 79 109 135	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —		— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —

Pedon Horizon Lab Results - 3
Horizon	Top Depth	Bottom Depth	Sample ID	ECEC	Phosphate P	NO3-N	EC	EC Method	EC 1:5 by volume	CaCO3 Equiv.	Equiv. Gypsum	Na	SAR	Gypsum Req.	Humic Color	Fulvic Color	Humic + Fulvic Color	Al	PI	Pyro. Hue	PyrO. Value	Pyro. Chroma
	cm	cm		cmol(+)/kg	mg/kg	mg/kg	dS/m		dS/m	%	%	mmol(+)/l	%	L-pcu/g	L-pcu/g	L-pcu/g	%
Ap E 2Bt1 2Bt2 2Bt3 3Bt4 3Bt5 3Bt6 3Bt7	0 20 25 33 41 48 79 109 135	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —	— — — — — — — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
abrupt textural change	—	25 -	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
argillic horizon abrupt textural change	25— 25—	—- —-

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
2	—	—	274	—	0	991	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark grayish brown (10YR 4/2) interior, pale brown (10YR 6/3) interior, dry; silt loam; weak medium subangular blocky structure; very friable; 7.0 very fine and fine roots throughout; 0.5 very fine and fine low-continuity tubular pores; fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # MU044911; moist when described;

E—20 to 25 centimeters (7.9 to 9.8 inches); grayish brown (10YR 5/2) interior loam; weak medium subangular blocky structure; very friable; 2.0 very fine and fine roots throughout; 0.5 very fine and fine low-continuity tubular pores; 3 percent fine irregular brown (10YR 4/3) masses of oxidized iron; fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # MU044912; moist when described;

2Bt1—25 to 33 centimeters (9.8 to 13.0 inches); strong brown (7.5YR 4/6) interior clay loam; weak medium prismatic parts to strong fine subangular blocky structure; very firm, very sticky, very plastic; 0.5 very fine and fine roots between peds; 0.5 very fine and fine low-continuity tubular pores; 3 percent prominent dark grayish brown (10YR 4/2), moist, clay films on faces of peds and in pores and 5 percent prominent strong brown (7.5YR 4/6), moist, clay films on faces of peds and 80 percent prominent strong brown (7.5YR 4/6), moist, clay films on faces of peds; 2 percent fine irregular red (2.5YR 4/8) masses of oxidized iron throughout and 3 percent fine irregular dark red (2.5YR 3/6) masses of oxidized iron throughout; fragments; slightly acid, pH 6.2, hellige-truog; abrupt smooth boundary. Lab sample # MU044913; moist when described;. continuous - phpvsfiid 149939; continuous - phpvsfiid 150239; continuous - phpvsfiid 150240; continuous - phpvsfiid 149939; continuous - phpvsfiid 150239; continuous - phpvsfiid 150240

2Bt2—33 to 41 centimeters (13.0 to 16.1 inches); strong brown (7.5YR 4/6) interior silty clay; weak medium prismatic parts to strong fine subangular blocky structure; very firm, very sticky, very plastic; 0.5 very fine and fine roots between peds; 0.5 very fine and fine low-continuity tubular pores; 3 percent prominent brown (10YR 4/3), moist, clay films on faces of peds and 80 percent prominent strong brown (7.5YR 4/6), moist, clay films on faces of peds; fragments; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # MU044914; moist when described;. continuous - phpvsfiid 149940; continuous - phpvsfiid 149941; continuous - phpvsfiid 149940; continuous - phpvsfiid 149941

2Bt3—41 to 48 centimeters (16.1 to 18.9 inches); dark yellowish brown (10YR 4/4) interior silty clay; weak medium prismatic parts to weak medium subangular blocky structure; very firm, very sticky, very plastic; 0.5 very fine and fine roots between peds; 0.5 very fine and fine low-continuity tubular pores; 3 percent distinct brown (10YR 4/3), moist, clay films on faces of peds and 80 percent prominent dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; fragments; slightly acid, pH 6.2, hellige-truog; clear smooth boundary. Lab sample # MU044915; moist when described;. continuous - phpvsfiid 149841; continuous - phpvsfiid 149942; continuous - phpvsfiid 149841; continuous - phpvsfiid 149942

3Bt4—48 to 79 centimeters (18.9 to 31.1 inches); brownish yellow (10YR 6/6) interior silty clay loam; weak coarse prismatic parts to moderate medium subangular blocky structure; firm; 0.5 very fine and fine roots between peds; 2.0 very fine and fine low-continuity tubular pores; 1 percent distinct light gray (10YR 7/1), moist, silt coats on faces of peds and in pores and 2 percent prominent dark grayish brown (10YR 4/2), moist, clay films on vertical faces of peds and 20 percent prominent brownish yellow (10YR 6/6), moist, clay films on faces of peds; 2 percent medium irregular reddish yellow (7.5YR 6/8) masses of oxidized iron between peds and 3 percent fine irregular yellowish red (5YR 4/6) masses of oxidized iron between peds; fragments; slightly acid, pH 6.5, hellige-truog; gradual smooth boundary. Lab sample # MU044916; moist when described;. discontinuous - phpvsfiid 149842; patchy - phpvsfiid 149868; discontinuous - phpvsfiid 149869; discontinuous - phpvsfiid 149842; patchy - phpvsfiid 149868; discontinuous - phpvsfiid 149869

3Bt5—79 to 109 centimeters (31.1 to 42.9 inches); yellowish brown (10YR 5/6) interior clay loam; weak coarse prismatic parts to moderate medium subangular blocky structure; firm; 0.5 very fine and fine roots between peds; 2.0 fine and medium moderate-continuity vesicular pores; 1 percent distinct light gray (10YR 7/1), moist, silt coats on faces of peds and in pores and 20 percent prominent yellowish brown (10YR 5/6), moist, clay films on faces of peds and 30 percent prominent dark yellowish brown (10YR 4/6), moist, clay films on vertical faces of peds; 1 percent fine and medium irregular black (N 2/0) iron-manganese masses and 2 percent fine and medium spherical red (2.5YR 4/8) iron concretions; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # MU044917; moist when described;. patchy - phpvsfiid 152811; discontinuous - phpvsfiid 149870; discontinuous - phpvsfiid 152812; patchy - phpvsfiid 152811; discontinuous - phpvsfiid 149870; discontinuous - phpvsfiid 152812

3Bt6—109 to 135 centimeters (42.9 to 53.1 inches); strong brown (7.5YR 5/8) interior silty clay loam; weak coarse prismatic parts to moderate medium subangular blocky structure; firm; 0.5 fine and medium moderate-continuity vesicular pores; 1 percent distinct light gray (10YR 7/1), moist, silt coats on faces of peds and in pores and 5 percent prominent dark brown (7.5YR 3/4), moist, clay films on faces of peds and 10 percent distinct yellowish brown (10YR 5/4), moist, clay films on vertical faces of peds and 25 percent prominent strong brown (7.5YR 5/8), moist, clay films on faces of peds; 2 percent fine and medium spherical red (2.5YR 4/8) iron concretions between peds and 2 percent fine and medium irregular black (N 2/0) iron-manganese masses throughout; fragments; moderately acid, pH 5.6, hellige-truog; clear wavy boundary. Lab sample # MU044918; moist when described;. discontinuous - phpvsfiid 152813; patchy - phpvsfiid 152814; discontinuous - phpvsfiid 152815; discontinuous - phpvsfiid 152816; discontinuous - phpvsfiid 152813; patchy - phpvsfiid 152814; discontinuous - phpvsfiid 152815; discontinuous - phpvsfiid 152816

3Bt7—135 to 175 centimeters (53.1 to 68.9 inches); strong brown (7.5YR 5/8) interior silty clay; weak coarse prismatic parts to moderate medium subangular blocky structure; very firm, very sticky, very plastic; 0.5 very fine and fine low-continuity tubular pores; 1 percent distinct light gray (10YR 7/1), moist, silt coats on faces of peds and in pores and 2 percent distinct yellowish brown (10YR 5/4), moist, clay films on vertical faces of peds and 5 percent prominent strong brown (7.5YR 4/6), moist, clay films on faces of peds and 60 percent prominent strong brown (7.5YR 5/8), moist, clay films on faces of peds; 1 percent fine and medium spherical dark brown (7.5YR 3/4) iron concretions throughout and 1 percent fine and medium irregular black (N 2/0) iron-manganese masses throughout; fragments; strongly acid, pH 5.3, hellige-truog; abrupt smooth boundary. Lab sample # MU044919; moist when described;. patchy - phpvsfiid 156514; discontinuous - phpvsfiid 152817; discontinuous - phpvsfiid 152818; discontinuous - phpvsfiid 152819; patchy - phpvsfiid 156514; discontinuous - phpvsfiid 152817; discontinuous - phpvsfiid 152818; discontinuous - phpvsfiid 152819

R—175 centimeters (68.9 inches); bedrock; fragments.