IDENTIFIERS

Current Taxon Name (Soil Name): Coloso

OSD

Series Extent

User Site ID: S2004PR023009

User Pedon ID: D04PR023009

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - SSL

Lab Pedon # - 04N0613

NCSS Pedon Lab Data NASIS Record ID - 17517

Print Date: 1/30/2025

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: 18.0991669

Std. Longitude: -67.1316147

Datum: WGS84

State: Puerto Rico

County: PR023—Cabo Rojo

MLRA: 272—Humid Coastal Plains

PEDON

Describers Name: Samuel Rios, Carmen Santiago, and Dewayne Mays

Current Taxonomic Class: Very-fine, kaolinitic, acid, isohyperthermic Vertic Endoaquepts

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Pedon #: 9

Correlated Information:

Soil Name - Coloso

Classificaton Date - 3/12/2019

Soil Taxonomic Edition - twelfth edition

Moisture Subclass - typic

Sampled As Information:

Soil Name - Coloso

Taxonomic Class - Very-fine, kaolinitic, acid, isohyperthermic Vertic Endoaquepts

Taxon Kind - series

Classificaton Date - 1/28/2004

Soil Taxonomic Edition - tenth edition

Dynamic Soil Properties:

Erosion Class - 0

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: alluvium

Landform: coastal plain

Drainage Class: somewhat poorly

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 1/28/2004 (actual site observation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - other grass/herbaceous cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon redox concentrations cambic horizon aquic conditions reduced matrix endosaturation redox depletions with chroma 2 or less	0—28 0—205 28—114 28—205 28—205 28—205 150—205	—28— —205— —86— —177— —177— —177— —55—

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
1	—	—	—	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap1—0 to 10 centimeters (0.0 to 3.9 inches); very dark gray (7.5YR 3/1) and dark brown (7.5YR 3/2) clay; weak fine subangular blocky, and weak medium subangular blocky structure; slightly hard, firm, moderately sticky, moderately plastic; 21.0 very fine roots and 21.0 fine roots; 30 percent distinct pressure faces on all faces of peds; 1 percent masses of oxidized iron on surfaces along root channels; fragments; noneffervescent; neutral, pH 7.0; gradual wavy boundary. Lab sample # 04N03415. few dark brown (7.5YR 3/4) root channels (see redox); continuous - phpvsfiid 1519974; continuous - phpvsfiid 1519974

Ap2—10 to 28 centimeters (3.9 to 11.0 inches); very dark gray (7.5YR 3/1) clay; moderate medium subangular blocky, and weak coarse subangular blocky, and moderate fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 fine roots; 21.0 very fine irregular and 21.0 fine irregular pores; 30 percent distinct pressure faces on all faces of peds; 1 percent brown (7.5YR 4/4), moist, masses of oxidized iron; fragments; noneffervescent; neutral, pH 7.0; gradual wavy boundary. Lab sample # 04N03416. continuous - phpvsfiid 1519975; continuous - phpvsfiid 1519975

Bw1—28 to 46 centimeters (11.0 to 18.1 inches); dark gray (10YR 4/1) and dark grayish brown (10YR 4/2) clay; moderate medium subangular blocky, and moderate fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.1 fine roots; 21.0 medium irregular and 21.0 fine irregular pores; 75 percent distinct pressure faces on all faces of peds; dark yellowish brown (10YR 4/4), moist, masses of oxidized iron; fragments; noneffervescent; neutral, pH 7.0; gradual wavy boundary. Lab sample # 04N03417. continuous - phpvsfiid 1519976; continuous - phpvsfiid 1519976

Bw2—46 to 68 centimeters (18.1 to 26.8 inches); clay; moderate medium subangular blocky, and moderate fine subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.1 very fine roots and 0.1 fine roots; 21.0 medium irregular and 1.0 fine tubular and 21.0 fine irregular pores; 75 percent distinct pressure faces on all faces of peds; fine brown (7.5YR 4/4), moist, masses of oxidized iron and medium brown (7.5YR 4/4), moist, masses of oxidized iron; fragments; noneffervescent; moderately alkaline, pH 8.0; gradual wavy boundary. Lab sample # 04N03418. continuous - phpvsfiid 1519977; continuous - phpvsfiid 1519977

Bw3—68 to 88 centimeters (26.8 to 34.6 inches); black (7.5YR 2.5/1) clay; moderate medium subangular blocky, and moderate fine subangular blocky structure; slightly hard, firm, moderately sticky, moderately plastic; 0.1 fine roots throughout; 21.0 medium irregular and 1.0 fine tubular and 21.0 fine irregular pores; 75 percent prominent pressure faces on all faces of peds; 21 percent fine strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments; noneffervescent; moderately alkaline, pH 8.0; clear wavy boundary. Lab sample # 04N03419. continuous - phpvsfiid 1519978; continuous - phpvsfiid 1519978

Bw4—88 to 114 centimeters (34.6 to 44.9 inches); black (7.5YR 2.5/1) clay; moderate coarse parts to moderate medium wedge, and moderate coarse parts to moderate fine wedge structure; slightly hard, firm, moderately sticky, moderately plastic; 0.1 fine roots; 21.0 medium irregular and 21.0 fine irregular and 0.5 fine tubular and 21.0 coarse irregular pores; 30 percent distinct pressure faces on all faces of peds; 21 percent fine brown (7.5YR 4/4), moist, masses of oxidized iron; fragments; noneffervescent; moderately alkaline, pH 8.0; clear wavy boundary. Lab sample # 04N03420. continuous - phpvsfiid 1519979; continuous - phpvsfiid 1519979

2Ass—114 to 150 centimeters (44.9 to 59.1 inches); black (10YR 2/1) clay; strong coarse parts to strong fine wedge, and strong coarse parts to strong medium wedge structure; slightly hard, firm, moderately sticky, moderately plastic; 0.1 very fine roots; 0.5 medium tubular and 0.5 fine tubular and 21.0 fine irregular and 21.0 coarse irregular pores; 75 percent prominent slickensides (geogenic) on all faces of peds; fragments; noneffervescent; moderately alkaline, pH 8.0; abrupt wavy boundary. Lab sample # 04N03421. continuous - phpvsfiid 1519980; continuous - phpvsfiid 1519980

3C1—150 to 170 centimeters (59.1 to 66.9 inches); yellowish brown (10YR 5/6) clay; moderate fine wedge, and moderate medium wedge structure; slightly hard, friable, slightly sticky, moderately plastic; 2.0 medium tubular and 21.0 medium irregular and 21.0 fine irregular and 2.0 fine tubular pores; 75 percent prominent pressure faces on all faces of peds; dark gray (10YR 4/1), moist, iron depletions and 25 percent N 5/1 (N 5/1), moist, masses of reduced iron; fragments; noneffervescent; moderately alkaline, pH 8.0; clear wavy boundary. Lab sample # 04N03422. continuous - phpvsfiid 1519981; continuous - phpvsfiid 1519981

3C2—170 to 205 centimeters (66.9 to 80.7 inches); yellowish brown (10YR 5/6) clay; 75 percent clay; moderate medium wedge, and moderate coarse wedge structure; hard, firm, slightly sticky, moderately plastic; 3.0 medium tubular and 21.0 medium irregular and 21.0 fine irregular and 3.0 fine tubular pores; 75 percent faint pressure faces on all faces of peds; 12 percent N 6/1 (N 6/1) masses of reduced iron and 30 percent light gray (10YR 7/1) iron depletions; fragments; noneffervescent; moderately alkaline, pH 8.0. Lab sample # 04N03423. discontinuous - phpvsfiid 1519982; discontinuous - phpvsfiid 1519982