Document yrGzm6Yyn4qdanrJzO6671ajV
CWA 404 Inspection
Vega Baja Landfill parcel numbers 018-000-006-02-010, 018-000-006-02004, 018-000-006-02-999, 018-075-352-51-000, and
036-000-002-30 in the Municipality of Vega Baja, Puerto Rico
April 7, 2022
U.S. Army Corps of Engineers WETLAND DETERMINATION DATA SHEET - Caribbean Islands Region
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R
Requirement Control Symbol EXEMPT
(Authority: AR 335-15, paragraph 5-2a)
Project/Site: Vega Baja Landfill
Municipality/Town: Vega Baja
Sampling Date: April 7, 2022
Applicant/Owner: Puerto Rico Ecopark
PR or USVI: PR
Sampling Point:
1
Investigator(s): Marco Finocchiaro, Seika Robinson, Jaime Lopez
Ward/Estate:
Landform (hillside, terrace, etc.): Landfill
Local relief (concave, convex, none):
Slope (%):
Lat: 18.477822 Soil Map Unit Name:
Long: -66.359039
Datum:
NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year?
Yes X
No
(If no, explain in Remarks.)
Are Vegetation X , Soil X , or Hydrology X significantly disturbed? Are "Normal Circumstances" present? Yes
No X
Are Vegetation
, Soil
, or Hydrology
naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X
No
Hydric Soil Present?
Yes X
No
Wetland Hydrology Present?
Yes X
No
Remarks:
Is the Sampled Area within a Wetland?
Yes X
No
VEGETATION - Use scientific names of plants.
Absolute
Tree Stratum
(Plot size:
10ft
)
% Cover
Dominant Species?
1.
2.
3.
4.
5.
=Total Cover
Sapling/Shrub Stratum
(Plot size: 10ft )
1. Mimosa malacophylla 2. Senna alata
40
Yes
10
Yes
3.
4.
5.
50 =Total Cover
Herb Stratum
(Plot size:
10ft
)
1. Commelina erecta
40
Yes
2. Paspalum fasciculatum
70
Yes
3.
4.
5.
6.
7.
8.
110 =Total Cover
Woody Vine Stratum
(Plot size: 10ft )
1.
2.
=Total Cover
Indicator Status
FACW FACW
FAC FACW
Dominance Test worksheet:
Number of Dominant Species That Are OBL, FACW, or FAC:
Total Number of Dominant Species Across All Strata:
Percent of Dominant Species That Are OBL, FACW, or FAC:
4 4 100.0%
(A) (B) (A/B)
Prevalence Index worksheet:
Total % Cover of:
Multiply by:
OBL species
0
x 1 =
0
FACW species 120
x 2 = 240
FAC species
40
x 3 = 120
FACU species
0
x 4 =
0
UPL species
0
x 5 =
0
Column Totals: 160 (A)
360 (B)
Prevalence Index = B/A =
2.25
Hydrophytic Vegetation Indicators:
1 - Rapid Test for Hydrophytic Vegetation
X 2 - Dominance Test is >50% X 3UHYDOHQFH ,QGH[ LV 1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present?
Yes X
No
Remarks: The area has been significantly disturbed by the landfill activities. Addition of fill material, removal of vegetaion, and rechannelizing a ditch have occurred in the area surrounding the soil pit.
ENG FORM 6116-3-SG, JUL 2018
Caribbean Islands - Version 2.0
SOIL
Sampling Point:
1
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
Matrix
Redox Features
(inches)
Color (moist)
%
Color (moist)
% Type1 Loc2
Texture
Remarks
0-4
10YR 3/4
50
10YR 3/1
50
c
PL
Loamy/Clayey
Faint redox concentrations
4-7
5Y 3/1
85
5YR 3/4
15 RM M
Loamy/Clayey
7-10.5
5Y 2.5/1
98
2.5Y 4/4
2
D
M Mucky Loam/Clay
10.5-18
5Y 3/1
60
2.5Y 4/3
40
C
M
Loamy/Clayey
Distinct redox concentrations
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.
Hydric Soil Indicators:
Histosol (A1)
Sandy Gleyed Matrix (S4)
Histic Epipedon (A2)
Sandy Redox (S5)
Black Histic (A3)
Stripped Matrix (S6)
Hydrogen Sulfide (A4)
Dark Surface (S7)
X Organic Bodies (A6)
Loamy Gleyed Matrix (F2)
X 5 cm Mucky Mineral (A7)
Depleted Matrix (F3)
Muck Presence (A8)
Redox Dark Surface (F6)
Depleted Below Dark Surface (A11)
Depleted Dark Surface (F7)
Thick Dark Surface (A12)
Redox Depressions (F8)
2Location: PL=Pore Lining, M=Matrix. Indicators for Problematic Hydric Soils3:
Stratified Layers (A5) Red Parent Material (F21) Very Shallow Dark Surface (F22) Other (Explain in Remarks)
3Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic.
Restrictive Layer (if observed): Type: Depth (Inches):
Hydric Soil Present?
Yes X No
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one is required; check all that apply)
X Surface Water (A1)
Water-Stained Leaves (B9)
High Water Table (A2)
Aquatic Fauna (B13)
Saturation (A3)
Hydrogen Sulfide Odor (C1)
Water Marks (B1)
Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2)
X Presence of Reduced Iron (C4)
Drift Deposits (B3)
Recent Iron Reduction in Tilled Soils (C6)
Algal Mat or Crust (B4)
Thin Muck Surface (C7)
Iron Deposits (B5)
Fiddler Crab Burrows (C10)
Inundation Visible on Aerial Imagery (B7)
Other (Explain in Remarks)
Secondary Indicators (minimum of two required) Surface Soil Cracks (B6) Sparsely Vegetated Concave Surface (B8) Drainage Patterns (B10) Dry-Season Water Table (C2) Saturation Visible on Aerial Imagery (C9) Geomorphic Position (D2) Shallow Aquitard (D3)
X FAC-Neutral Test (D5)
Field Observations:
Surface Water Present?
Yes aq
No X
Depth (inches):
Water Table Present?
Yes
No X
Depth (inches):
Saturation Present?
Yes
No X
Depth (inches):
Wetland Hydrology Present? Yes X No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: The area has been impacted from earthmoving activities from the landfill operations/expansion, the unautherized rechanneling of the ditch and the free roaming of cattle on the site.
ENG FORM 6116-3-SG, JUL 2018
Caribbean Islands - Version 2.0
