HomeMy WebLinkAboutDrainage Report
Stormwater & Water
Quality Calculations
4810 Northwestern Drive – 2021 Building Addition
City of Carmel
Hamilton County, Indiana
Prepared:
November 17, 2021
Revised:
January 3, 2022
By:
CrossRoad Engineers, PC
3417 Sherman Dr.
Beech Grove, IN 46107
Phone No.: (317) 780-1555
Email: gilko@crossroadengineers.com
3417 SHERMAN DR, BEECH GROVE, IN 46107 // 317.780.1555 // CROSSROADENGINEERS.COM PAGE 2 of 6
Section 1: Stormwater Calculations Summary
Pre-Development Conditions
The project site is situated on ±3.50 acres located at 4810 Northwestern Drive. This parcel
has a Zionsville address; however, it falls within the City of Carmel jurisdiction. See Exhibit
1 for the Location and Vicinity Map. The site currently consists of a ±9,600 square foot
vehicle service building with associated paved and gravel parking lots. The site falls within
the Park Northwestern Subdivision where stormwater detention has been provided. The
park falls within the master plan area for Weston Park, and a curve number of 92 was
assumed in the calculations by Civil Designs, LLP. The master plan drainage report is
included in Appendix A. The project site lies outside any floodways and/or floodplains per
Community Panel #18057C0225G of the Flood Insurance Rate Map dated April 2019. A
wetland delineation report was prepared for the site by Aqua Terra, and it was determined
that an approximately 0.27-acre wetland area was identified along the western boundary
of the site. This area was delineated, and the limits of the wetland are shown on the
construction plans. There are no improvements proposed within the limits of the wetland.
The wetland report has been included in Appendix A.
Post-Development Conditions
This project includes the construction of a ±9600 square foot vehicle service building, a
new parking area, and stormwater infrastructure. Access to the project will be provided via
the existing drives from Northwestern Drive and Mayflower Park Drive. A storm sewer
system will be constructed to collect and convey runoff to the existing 18” end section
located at the northwest corner of the site following existing drainage patterns. With the
construction of the improvements, the overall impervious area onsite will be reduced by
0.26 acres with the gravel parking being replaced by additional grass area about the new
building. See Exhibit 2 for the post-developed conditions showing the impervious area for
the overall site.
Water Quality
In addition to the dry basin BMP that serves the overall master planned development,
water quality via a mechanical treatment unit will be provided to treat the runoff from all
disturbed areas.
Storm Sewer Design
The proposed onsite storm sewer network is designed to accommodate a 10-year storm
event. The Rational Method was used to perform the storm sewer pipe sizing calculations.
Structures and grates were designed and placed so that the depth of ponding above the
inlet does not exceed 6 inches at half blocked condition.
Exhibit 1 - Project Location Map
Esri, HERE, Garmin, INCREMENT P, USGS, EPA, USDA
Streets
Carmel
Private
INDOT
City Boundary
2021 Photography
Red: Red
Green: Green
Blue: Blue
November 12, 2021 0 0.06 0.120.03 mi
0 0.1 0.20.05 km
1:4,800
ArcGIS WebApp Builder
4810 NORTHWESTERN DRIVE 2021 BUILDING ADDITION
EXHIBIT 2 - PROPOSED CONDITIONS
NORTHNOT TO SCALE
PROPOSED
BASIN
CN = 88
3417 SHERMAN DR, BEECH GROVE, IN 46107 // 317.780.1555 // CROSSROADENGINEERS.COM PAGE 3 of 6
Section 2: Hydrologic Modeling Calculations
Existing Soil Summary
As previously mentioned, detention requirements for the Park Northwestern Subdivision
were installed previously calculated with a curve number of 92. In order to ensure the
proposed site does not produce a runoff greater that what was anticipated in the
previously approved stormwater calculations, it will be demonstrated that the proposed
curve number is less than, or equal to, the anticipated curve number. The site soils consist
of Urban land-Crosby silt loam complex, UcfA and urban land Brookston complex, UbaA.
The soil map is included within this section. The soil types are classified as Hydrologic Soil
Group C and B respectively, as defined by the Web Soil Survey. Due to the disturbance of
the soil during the proposed construction, the next less infiltrating soil groups were used
to compute the proposed curve number.
Runoff Curve Number Calculations
Table 1A
Pre-Development Soil Hydrologic Group Percentage Calculations
Soil Type Hydrologic Group – B
(acres)
Hydrologic Group – C
(acres)
Urban Land – Brookston complex, UbaA 2.25 --
Urban Land – Crosby complex, UcfA -- 1.25
Totals 2.25 1.25
Percentages of Hydrologic Groups 64.2% 35.8%
Table 3A
Post-Development Runoff Curve Number Calculations
Land Use Description
Runoff Curve No. For
Hydrologic Group – C
Runoff Curve No. For
Hydrologic Group – D
Average
Runoff
Curve
Number
Percentage
Used* 64.2% Percentage
Used* 35.8%
1.91 Acres Impervious 98 98 98
1.59 Acres Grass
(Good Condition) 74 80 76
Overall Post Developed Curve Number 88
The site curve number is less than, or equal to, the anticipated curve number;
therefore, detention and water quality capacities provided by the existing detention
facility are adequate.
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
1/7/2020
Page 1 of 44420700442072044207404420760442078044208004420820442084044208604420880442090044207004420720442074044207604420780442080044208204420840442086044208804420900564870564890564910564930564950564970564990565010
564870 564890 564910 564930 564950 564970 564990 565010
39° 56' 8'' N 86° 14' 27'' W39° 56' 8'' N86° 14' 20'' W39° 56' 1'' N
86° 14' 27'' W39° 56' 1'' N
86° 14' 20'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84
0 50 100 200 300
Feet
0 15 30 60 90
Meters
Map Scale: 1:1,070 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at scales
ranging from 1:12,000 to 1:15,800.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Boone County, Indiana
Survey Area Data: Version 22, Sep 16, 2019
Soil Survey Area: Hamilton County, Indiana
Survey Area Data: Version 20, Sep 16, 2019
Your area of interest (AOI) includes more than one soil survey
area. These survey areas may have been mapped at different
scales, with a different land use in mind, at different times, or at
different levels of detail. This may result in map unit symbols, soil
properties, and interpretations that do not completely agree
across soil survey area boundaries.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Aug 1, 2018—Sep
30, 2018
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
1/7/2020
Page 2 of 4
MAP LEGEND MAP INFORMATION
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
1/7/2020
Page 3 of 4
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
UcfA Urban land-Crosby silt loam
complex, fine-loamy subsoil,
0 to 2 percent slopes
0.0 0.0%
Subtotals for Soil Survey Area 0.0 0.0%
Totals for Area of Interest 3.4 100.0%
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
UbaA Urban land-Brookston
complex, 0 to 2 percent
slopes
2.2 64.2%
UcfA Urban land-Crosby silt loam
complex, fine-loamy subsoil,
0 to 2 percent slopes
1.2 35.8%
Subtotals for Soil Survey Area 3.4 100.0%
Totals for Area of Interest 3.4 100.0%
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
1/7/2020
Page 4 of 4
3417 SHERMAN DR, BEECH GROVE, IN 46107 // 317.780.1555 // CROSSROADENGINEERS.COM PAGE 4 of 6
Section 3: Water Quality Calculations
The existing site runoff sheet flows to the northwest corner of the site and is routed via
storm sewer to an existing offsite dry detention basin which serves the entire Park
Northwestern Subdivision. Per coordination with the City of Carmel, this development will
be required to provide additional onsite water quality measures to treat the disturbed
area associated with this project. Water quality requirements will be met using an
AquaShield AS-4 offline mechanical unit. The water quality calculations were completed
using the SCS Type II distribution for 1 inch of rainfall in 24-hours to determine the
required treatment flow rate. Using Autodesk Storm and Sanitary Analysis, the required
treatment flow for the entire 1.28 acres of disturbed area is 1.15 cfs. The minimum unit
size was determined using the City of Indianapolis Unit Selection Guide for maximum
treatment flow rates.
The diversion structure was designed using the 1.15 cfs flow rate modeled in Hydraflow
Express to determine the height of weir. Using a 12” pipe at a slope of 0.37%, the depth in
pipe and therefore the height of the weir is 0.50’ from the bottom of structure.
The manufacturer unit sizing chart, weir height calculation, and flow rate hydrograph are
included in this section.
City of Indianapolis Stormwater Quality Unit (SQU)
Selection Guide
Pg. 3 04/27/2021
Version 19
Manufactured
SQU SQU System Model
Max
Treatment
Flow
(cfs)
Max 10-yr
On-Line
Flow Rate
(cfs)
Cleanout
Depth
(Inches)
2-4 0.62 2.57 6
3-6 1.4 5.80 6
3-8 1.87 7.75 6
4-8 2.49 10.31 6
5-10 3.89 16.11 6
6-12 5.6 23.19 6
6-13.75 6.42 26.59 6
7-14 7.62 31.56 6
7-15 8.17 33.84 6
8-14 8.71 36.08 6
8-16 9.96 41.25 6
9-18 12.6 52.19 6
10-17 13.22 54.76 6
10-20 15.56 64.45 6
12-21 19.6 81.18 6
Oldcastle
NSBB-HVT
12-24 22.4 92.78 6
AS-2 0.36 0.73 7
AS-3 0.71 1.44 7
AS-4 1.18 2.39 7
AS-5 1.46 2.96 7
AS-6 2.11 4.28 7
AS-7 2.87 5.82 7
AS-8 3.74 7.59 7
AS-9 4.73 9.59 7
AS-10 5.84 11.84 7
AS-11 7.07 14.34 7
AS-12 8.42 17.08 7
AquaShield
Aqua Swirl
Concentrator
AS-13 9.87 20.02 7
S3 0.70 1.40 10
S4 1.25 2.50 10
S5 1.95 3.90 10
S6 2.80 5.60 10
S8 5.00 10.00 10
ADS Barracuda
S10 7.80 15.60 10
2-4 0.70 1.53 6
2.5-5 1.10 2.40 6
3-6 1.59 3.47 6
4-6 2.11 4.60 6
4-8 2.82 6.15 6
5-10 4.40 9.60 6
BioClean
Debris
Separating
Baffle Box
(DSBB)
6-12 6.34 13.83 6
Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc. Thursday, Nov 11 2021
<Name>
Circular
Diameter (ft) = 1.00
Invert Elev (ft) = 100.00
Slope (%) = 0.37
N-Value = 0.012
Calculations
Compute by: Known Q
Known Q (cfs) = 1.17
Highlighted
Depth (ft) = 0.50
Q (cfs) = 1.170
Area (sqft) = 0.39
Velocity (ft/s) = 2.96
Wetted Perim (ft) = 1.57
Crit Depth, Yc (ft) = 0.46
Top Width (ft) = 1.00
EGL (ft) = 0.64
0 1 2 3
Elev (ft) Depth (ft)Section
99.50 -0.50
100.00 0.00
100.50 0.50
101.00 1.00
101.50 1.50
102.00 2.00
Reach (ft)
Water Quality Basin - SCS Type II 1 inch 24-hour Storm
Total Inflow (cfs)1.25
1.00
0.75
0.50
0.25
0.00
Time (hrs)
70635649423528211470
Total Inflow : Node - Out-01 (4810 Northwestern Drive Drainage 2021-11-10 15:51:26)
STORM ID SCS Type II 1-Inch 24-Hour Storm
Maximum Runoff (cfs) 1.15
SN Element Description Area Drainage Weighted Rain Gage Peak Total Total Peak Time
ID Node ID Curve ID Rate Precipitation Runoff Runoff of
Number Factor Concentration
(acres)(inches)(inches)(cfs)(days hh:mm:ss)
1 WQ_Basin 1.28 Out-01 96.00 WQ_Type2 484 1.00 0.63 1.19 0 00:07:06
SN Element Description Data Data Rainfall Rain State County Return Rainfall Rainfall
ID Source Source Type Units Period Depth Distribution
ID
(years)(inches)
1 WQ_Type2 Time Series TS-01 Cumulative inches Indiana Hamilton 10 1 SCS Type II 24-hr
3417 SHERMAN DR, BEECH GROVE, IN 46107 // 317.780.1555 // CROSSROADENGINEERS.COM PAGE 5 of 6
Section 4: Pipe Sizing Calculations & Inlet Calculations
The Rational Method was used to size the pipes to convey the peak runoff from the 10-
year storm. The time of concentration was assumed to be the minimum 5 minutes where
applicable. The time of concentration sheets, pipe sizing calculations, HGL profile plots,
and inlet basin map are included within this section.
Storm inlets were placed throughout the site to ensure that sag inlets will be adequate to
pass the design 10-year flow and that the maximum depth of water shall not exceed 6
inches over the grate at the 50% clogged condition.
The weir equation was used when depth of flow is less than 4” and the orifice equation
was utilized for depths 4” or greater.
The weir equation is as follows: Q = 3.3P(h)1.5
Where: P = perimeter of the grate; h = head above the casting; Q = Capacity
The orifice equation is as follows: Q = 0.6A(2gh)0.5
Where: A = open area of the grate; h = head above the casting; g = 32.2 ft/sec2
Structure No. Casting Type Watershed
Runoff
Inlet
Intake
Actual
Depth Over
Grate at 50%
2 R-4215- C 0.17 cfs 0.17 cfs 0.3”
Exhibit 4 shows the flood route assuming inlets are in the 100% clogged scenario. Using
Hydraflow, runoff hydrographs were generated for each inlet and the volume calculated
was compared to the proposed topography to determine whether the 100-year event was
locally contained, or if the runoff crests to the next basin. All 100-year storm volumes were
contained within the local low points. The highest crest elevation on site is 890.25. Per the
Carmel STSM, the MFPG is equal to 890.25 providing 1-foot of freeboard. The proposed FFE
is 890.90. The flood routing exhibit inlet runoff hydrographs are included in this section.
Project:
Designer:CDM Date:
Str. No.:1
Sheet Flow
1.Surface Description Paved Grass
2.Manning's Roughness Coeff., (n)0.011 0.150
3.Flow Length, (L) **total L<= 100 ft 59.00 ft.41.00 ft.ft.
4.Two-yr 24-hr Rainfall, (P2)2.66 in.2.66 in.in.
5.Land Slope, (s)0.0100 ft./ft.0.0100 ft./ft.ft./ft.
6.Travel Time, (Tt)0.019 hr +0.116 hr +hr
(Tt = [0.007(nL)^0.8]/[P2^0.5*s^0.4])
Shallow Concentrated Flow
7.Surface Description Unpaved
(paved or unpaved)
8.Flow Length, (L)138.00 ft.ft.ft.
9.Watercourse Slope, (s)0.0100 ft./ft.ft./ft.ft./ft.
10.Average Velocity, (V)1.639 ft./s 0.000 ft./s 0.000 ft./s Watershed or
(Vp = 20.683(s)^0.5)Subarea Tc or Tt =
(Vup = 16.393(s)^0.5)0.158 hr
or
11.Travel Time, (Tt)0.023 hr +0.000 hr +0.000 hr 9.50 min
(Tt = L/3600V)
TIME OF CONCENTRATION or TRAVEL TIME WORKSHEET
4810 Northwestern Drive
11/17/2021
Pipe and Inlet Sizing Calculations
Downstream
Structure
Length
(ft)
Pipe
Diameter
(in)
Pipe
Material
Invert
Slope
(%)
Mannings
Number n
Total
Area
A
(ac)
Composite
Coefficient
C
Tc
(min)
Rainfall
Intensity
(i) in/hr
Manual
Input Flow
Q
(cfs)
Q=CiA
(cfs)
Total
Area
A
(ac)
Runoff
Coefficient
C
Time in
Upstream
Pipe (min)
Total Time of
Concentration
Tc (min)
Intensity
I
(in/hr)
Total
Pipe
Flow
(cfs)
Pipe
Capacity
Qmax
(cfs)
Pipe
Velocity
(ft/s)
% of Full
Flow
Capacity
STR 1 STR 2 67 12 RCP 0.31 0.013 0.44 0.39 9.50 5.31 --0.92 0.44 0.39 N/A 9.50 5.31 0.92 1.98 2.52 46.26%
STR 2 STR 3 47 12 RCP 0.31 0.013 0.44 0.39 N/A 9.50 5.31 0.92 1.98 2.52 46.26%
STR 3 STR 6 169 15 RCP 0.23 0.013 0.22 0.90 5.00 6.12 --1.21 0.80 0.50 0.31 9.81 5.19 2.07 3.09 2.52 66.84%
STR 3A STR 3 12 12 RCP 4.90 0.013 0.14 0.20 5.00 6.12 --0.17 0.14 0.20 N/A 5.00 6.12 0.17 7.87 10.02 2.18%
STR 4 STR 5 21 15 RCP 0.23 0.013 0.69 0.61 5.00 6.12 --2.56 0.69 0.61 N/A 5.00 6.12 2.56 3.09 2.52 82.57%
STR 5 STR 6 145 18 RCP 0.18 0.013 1.49 0.55 N/A 10.93 5.04 4.11 4.45 2.52 92.34%
STR 6 STR 7 132 18 RCP 0.18 0.013 1.49 0.55 N/A 10.93 5.04 4.11 4.45 2.52 92.34%NO DIRECT INFLOW
Pipe AnalysisContributing Watershed DataInlet Watershed Data
Structure
Pipe Data
NO DIRECT INFLOW
NO DIRECT INFLOW
4810 NORTHWESTERN DRIVE 2021 BUILDING ADDITION
EXHIBIT 3 - INLET BASIN MAP
NORTHNOT TO SCALE
STR #1
A = 0.44 AC.
C = 0.39
Tc = 9.50 MIN
STR #3A
A = 0.14 AC.
C = 0.20
Tc = 5 MIN
STR #4
A = 0.69 AC.
C = 0.61
Tc = 5 MIN
STR #3
A = 0.22 AC.
(ROOF AREA)
C = 0.90
Tc = 5 MIN
STR #5
NO DIRECT
INFLOW
STR #6
NO DIRECT
INFLOW
STR #2
NO DIRECT
INFLOW
4810 NORTHWESTERN DRIVE 2021 BUILDING ADDITION
EXHIBIT 4 - FLOOD ROUTING EXHIBIT
NORTHNOT TO SCALE
STR #3A
MAX 100-YR
ELEVATION
=889.10
STR #1
MAX 100-YR
ELEVATION
=889.25
STR #4
MAX 100-YR
ELEVATION
=888.09
MFPG = 890.25
FFE = 890.90
Hydrograph Report
Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2021 Monday, 01 / 3 / 2022
Hyd. No. 1
STR #1
Hydrograph type = Rational Peak discharge = 1.336 cfs
Storm frequency = 100 yrs Time to peak = 10 min
Time interval = 1 min Hyd. volume = 801 cuft
Drainage area = 0.440 ac Runoff coeff.= 0.39
Intensity = 7.783 in/hr Tc by User = 10.00 min
IDF Curve = Carmel IDF.IDF Asc/Rec limb fact = 1/1
0 2 4 6 8 10 12 14 16 18 20
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
Q (cfs)
Time (min)
STR #1
Hyd. No. 1 -- 100 Year
Hyd No. 1
Hydrograph Report
Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2021 Monday, 01 / 3 / 2022
Hyd. No. 2
STR #3A
Hydrograph type = Rational Peak discharge = 0.255 cfs
Storm frequency = 100 yrs Time to peak = 5 min
Time interval = 1 min Hyd. volume = 77 cuft
Drainage area = 0.140 ac Runoff coeff.= 0.2
Intensity = 9.120 in/hr Tc by User = 5.00 min
IDF Curve = Carmel IDF.IDF Asc/Rec limb fact = 1/1
0 1 2 3 4 5 6 7 8 9 10
Q (cfs)
0.00 0.00
0.05 0.05
0.10 0.10
0.15 0.15
0.20 0.20
0.25 0.25
0.30 0.30
0.35 0.35
0.40 0.40
0.45 0.45
0.50 0.50
Q (cfs)
Time (min)
STR #3A
Hyd. No. 2 -- 100 Year
Hyd No. 2
Hydrograph Report
Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2021 Monday, 01 / 3 / 2022
Hyd. No. 3
STR #4
Hydrograph type = Rational Peak discharge = 3.839 cfs
Storm frequency = 100 yrs Time to peak = 5 min
Time interval = 1 min Hyd. volume = 1,152 cuft
Drainage area = 0.690 ac Runoff coeff.= 0.61
Intensity = 9.120 in/hr Tc by User = 5.00 min
IDF Curve = Carmel IDF.IDF Asc/Rec limb fact = 1/1
0 1 2 3 4 5 6 7 8 9 10
Q (cfs)
0.00 0.00
1.00 1.00
2.00 2.00
3.00 3.00
4.00 4.00
Q (cfs)
Time (min)
STR #4
Hyd. No. 3 -- 100 Year
Hyd No. 3
3417 SHERMAN DR, BEECH GROVE, IN 46107 // 317.780.1555 // CROSSROADENGINEERS.COM PAGE 6 of 6
Appendix A
Master Plan Drainage Report for the Weston Park Development
By Civil Designs, LLP
Wetland Delineation Report
Wetland Delineation Report
4810 Northwestern Drive
1
WETLAND DELINEATION
REPORT
4810 NORTHWESTERN DR IVE
Hamilton County, Indiana
prepared for:
CrossRoads Engineers PC
prepared by:
Randy Jones
AquaTerra Consulting, Inc.
March, 2020
Wetland Delineation Report
4810 Northwestern Drive
2
TABLE OF CONTENTS
Executive Summary ....................................................................................................................................................... 4
Introduction ................................................................................................................................................................... 5
Purpose & Objectives ............................................................................................................................................... 5
Methods ........................................................................................................................................................................ 6
Results/Discussion ......................................................................................................................................................... 7
Site Conditions: ......................................................................................................................................................... 7
Description of Site .................................................................................................................................................... 7
Background .................................................................................................................................................................... 9
Findings ....................................................................................................................................................................... 13
Conclusions .................................................................................................................................................................. 16
List of Acronyms: ......................................................................................................................................................... 17
Appendices .................................................................................................................................................................. 17
TABLE OF PHOTOS
Photo 1 Dominant site conditions ............................................................................................................................... 5
Photo 2 2016 NAIP ..................................................................................................................................................... 12
Photo 3 Wetland hydrology in depressional area .................................................................................................... 14
Photo 4 Facing south ................................................................................................................................................. 14
Photo 5 Wetland 1. From south side facing north. ................................................................................................... 15
Photo 6 Willows in northern portion of wetland; inundation evident ..................................................................... 16
Wetland Delineation Report
4810 Northwestern Drive
3
TABLE OF FIGUR ES
Figure 1 Site Map- 2016 Aerial .................................................................................................................................... 4
Figure 2 Topo/NWI/DFIRM/NHD Map .......................................................................................................................... 7
Figure 3 2016 Aerial/Soil Map ...................................................................................................................................... 8
Figure 4 Hamilton County regulated drains ................................................................................................................. 9
Figure 5 1998 NAIP .................................................................................................................................................... 10
Figure 6 2003 NAIP .................................................................................................................................................... 10
Figure 7 2010 NAIP .................................................................................................................................................... 11
Figure 8 2012 NAIP .................................................................................................................................................... 11
Figure 9 2014 NAIP ................................................................................................................................................... 12
Figure 10 Site Map- 2017 IndianaMap ...................................................................................................................... 13
Wetland Delineation Report
4810 Northwestern Drive
4
EXECUTIVE SUMMA RY
Waterbodies Identified Type Size
Jurisdiction Permit Required
(404/401/Isolated Wetland)
Wetland 1 PEM/PSS 0.27 acres Isolated- CLASS I EXEMPT
Figure 1 Site Map- 2016 Aerial
Wetland Delineation Report
4810 Northwestern Drive
5
INTRODUCTION
DELINEATION REQUESTED BY:
Company Name: CrossRoads Engineers, PC
Contact Person: Mr. Greg Ilko
Address: 3417 Sherman Drive
City: Beech Grove State: IN Zip: 46107
Phone: Email: gilko@crossroadsengineers.com
Project Name: 4810 Northwestern Drive
PURPOSE & OBJECTIVES
To determine if any wetlands or any other “waters of the US” are present within an approximately 3 acre
Subject Area, according to the criteria of the US Army Corps of Engineers 1987 Wetland Delineation
Manual (Midwest Regional Supplement), and the applicable provisions of the US Army Corps of Engineer
Regulatory Program regulations at 33 CFR 320-332, and the state of Indiana isolated wetland law (IC 13-
18-22), (327 IAC 14). The owners are proposing a commercial development on the site.
Photo 1 Dominant site conditions
Wetland Delineation Report
4810 Northwestern Drive
6
Site Location:
County: Hamilton
Civil Township: Clay Section: 7
Township: 17 North Range: 3 East Quad: Carmel, IN
Directions: South side of Northwestern Drive, just east of Mayflower Park Drive, in Carmel.
Watershed: Upper White River; 8-Digit HUC#: 05120201
Lat/Long: -86.2402 39.935 decimal degrees
Field Review Dates: 2/28/20 & 3/3/20
Executed by: Randy Jones 151 North Home Avenue
AquaTerra Consulting, Inc. Franklin, IN 46131
(317) 502-7897 (phone) (866) 827-5608 (fax)
Signed: _____________________
NOTE:
Although this report collaborates evidence from on-site conditions, available site maps, aerial photography and other
sources, and asserts a jurisdictional claim based on this evidence, final jurisdictional status and corresponding permit
requirements remains with the US Army Corps of Engineers and/or the Indiana Department of Environmental
Management.
METHODS
A wetland delineation of existing conditions, according to the procedures of the US Army Corps of
Engineers 1987 Wetland Delineation Manual (Midwest Regional Supplement), was conducted in March,
2019. Sample points were chosen to represent predominant features of the project area. Existing
mapping resources, including USGS topographic maps, National Wetland Inventory maps, aerial
photographs, and the Hamilton County Soil Survey were also used to provide frame of reference.
Wetland Delineation Report
4810 Northwestern Drive
7
RESULTS/DISCUSSION
SITE CONDITIONS :
According to www.weather.com , the Carmel, IN area experienced approximately 2.1 inches of
precipitation in the week previous to the site inspection. Temperature was in the mid 30’s. Site
conditions were typical (wet) for this time of year. Snow and ice were present during first site visit.
DESCRIPTION OF SITE
1. Topography: The topography at the site is fairly flat, and generally slopes to the south. Slopes
range from 0-2%.
Figure 2 Topo/NWI/DFIRM/NHD Map
Wetland Delineation Report
4810 Northwestern Drive
8
2. Existing Land-Use: The site is dominated by industrial land use, with a lawn area on the west side.
3. Plant Communities: Vegetation in the area is primarily volunteer grasses and forbs.
4. Soils: The soil types mapped at the site are primarily Brookston silty clay loam (Br). Brookston is
listed as a hydric soil, according to USDA, for a seasonally high water table. See appendices for full
soil descriptions.
Figure 3 2016 Aerial/Soil Map
5. Existing Wetland Mapping: The National Wetland Inventory Map does not indicate any potential
wetlands on, or immediately adjacent to the site.
6. Hydrology: No potential floodway or floodplain areas are mapped at the site, according to IDNR
DFIRM mapping. Site drainage is to the south, through a stormwater system, eventually outletting
to Crooked Creek, approximately 1 mile to the southeast. No legal drains are mapped at the site.
Wetland Delineation Report
4810 Northwestern Drive
9
Figure 4 Hamilton County regulated drains
BACKGROUND
Aerial photography shows development of induistrial park at the site and surrpundign areas since
approximately 2003. Prior to developemnt, the site arerial show wet conditions along the east side..
Wetland Delineation Report
4810 Northwestern Drive
10
Figure 5 1998 NAIP
Figure 6 2003 NAIP
Wetland Delineation Report
4810 Northwestern Drive
11
Figure 7 2010 NAIP
Figure 8 2012 NAIP
Wetland Delineation Report
4810 Northwestern Drive
12
Figure 9 2014 NAIP
Photo 2 2016 NAIP
Wetland Delineation Report
4810 Northwestern Drive
13
FINDINGS
Two Sample Points, representative of dominant conditions, were chosen along two north/south transects
to represent conditions at the site. Sample points were mapped using a GPS unit and exported to
ArcGIS.
Figure 10 Site Map- 2017 IndianaMap
Wetland Delineation Report
4810 Northwestern Drive
14
Photo 3 Wetland hydrology in depressional area
Photo 4 Facing south
Wetland Delineation Report
4810 Northwestern Drive
15
WETLAND 1
An approximately 0.27 acre wetland area (Wetland 1) was identified along the western boundary of the
site, appears to support an emergent to scrub-shrub wetland plant community.
Depressional topography, likely created by previous site excavation activities, has led to saturated and
inundated conditions in the area. Wetland species, including cattail, willow, dogwood, and cottonwood,
have colonized in the depressional areas and have reverted to “normal circumstances” that support
wetland conditions.
Photo 5 Wetland 1. From south side facing north.
All site soils have been previously disturbed through earthmoving. Hydric soils are mapped in the area,
according to USDA; hydric features were confirmed within wetland areas.
No discrete outlet to receiving streams could be determined. The industrial park appears to sit in a large
depressional area with poor site drainage; wetland conditions were observed throughout the area. Some
constructed stormwater drainage features are present, but do not appear to represent a “significant
nexus” connecting the wetland to downstream waters. Do to this lack of discrete hydrologic connection,
the wetland area does not appear to be regulated as a “water of the US”.
Due to the fairly degraded conditions of the wetland, located within stormwater infrastructure, it appears
the wetland is a Class I isolated wetland, per state regulatory descriptions.
Wetland Delineation Report
4810 Northwestern Drive
16
Photo 6 Willows in northern portion of wetland; inundation evident
CONCLU SIONS
The approximately 0.27 acre of emergent/scrub-shrub Wetland 1 does not appear to be regulated as
“water of the United States”, due to a lack of a “significant nexus” connecting the wetland to downstream
receiving waters. A Section 404 permit from the US Army Corps of Engineers, and a Section 401 Water
Quality Certification from IDEM are not required for discharges of dredged or fill material to “isolated
wetlands”.
The approximately 0.27 acre Wetland 1, appears to be isolated, and therefore not subject to federal
permitting requirements. The IDEM maintains a state permitting program for Isolated wetlands, pursuant
to 327 IAC 17. However, “Class I isolated wetlands”, less than 0.5 acres in size, are EXEMPT from
permitting requirements. No state permit is required to conduct work in Wetland 1.
Wetland Delineation Report
4810 Northwestern Drive
17
LIST OF ACRONYMS :
Corps/COE/USACOE- US Army Corps of Engineers
FIRM- Flood Insurance Rate Map
HUC- Hydrologic Unit Code
JD- Jurisdictional Determination
IDEM- Indiana Department of Environmental Management
INDOT- Indiana Department of Transportation
NRCS- Natural Resources Conservation Service
NWI- National Wetland Inventory
OHWM- Ordinary High Water Mark
PEM- Palustrine Emergent wetland
PFO- Palustrine Forested wetland
RGP- Regional General Permit
RPW- Relatively Permanent Water
TNW- Traditional Navigable Water
USGS- US Geological Survey
WQC- Water Quality Certification
APPENDICES
USGS Topographic/National Wetland Inventory Map
Site Map (2018 NAIP Aerial)
Site Map (2016 IndianaMap Aerial)
USDA Soil Descriptions
Data Forms
PFO1C
PUBGx
PUBGx
PUBGx
PSS1C
PFO1C
PEM1C
PUBGxPUBGx
PEM1F
PFO1CPEM1C
PEM1C
PUBGh
PUBGx
PUBGx
PUBGx
Crooked Creek
Source: IndianaMap 0 0.550.275 Miles 4
Legend
Site
S t r e a m s - N H D
S t r e a m s - N H D
N W I
N W I
DFIRM
F R I N G E
F R I N G E
F L O O D W AY
F L O O D W AY
Topo/NWI/DFIRM/NHD Map
AquaTerraMarch, 2020
4810 Northwestern Drive
+U
+U
X2
X1
Source: USDA 0 500250Feet 4Legend
S i t e
S i t e
+U S a m p l e P o i n t s
S a m p l e P o i n t s
W e t l a n d A
W e t l a n d A
Site Map- 2018 Aerial
AquaTerraMarch, 2020
4810 Northwestern Drive
Wetland A0.27 acres
+U
+U
X2
X1
Source: IndianaMap 0 500250Feet 4Legend
S i t e
S i t e
+U S a m p l e P o i n t s
S a m p l e P o i n t s
W e t l a n d A
W e t l a n d A
Site Map- 2017 Aerial
AquaTerraMarch, 2020
4810 Northwestern Drive
Wetland A0.27 acres
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 1 of 444206204420680442074044208004420860442092044209804420620442068044207404420800442086044209204420980564680564740564800564860564920564980565040565100565160565220
564680 564740 564800 564860 564920 564980 565040 565100 565160 565220
39° 56' 11'' N 86° 14' 35'' W39° 56' 11'' N86° 14' 11'' W39° 55' 59'' N
86° 14' 35'' W39° 55' 59'' N
86° 14' 11'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84
0 100 200 400 600
Feet
0 35 70 140 210
Meters
Map Scale: 1:2,630 if printed on A landscape (11" x 8.5") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at scales
ranging from 1:12,000 to 1:15,800.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Boone County, Indiana
Survey Area Data: Version 22, Sep 16, 2019
Soil Survey Area: Hamilton County, Indiana
Survey Area Data: Version 20, Sep 16, 2019
Your area of interest (AOI) includes more than one soil survey
area. These survey areas may have been mapped at different
scales, with a different land use in mind, at different times, or at
different levels of detail. This may result in map unit symbols, soil
properties, and interpretations that do not completely agree
across soil survey area boundaries.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Aug 1, 2018—Sep
30, 2018
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 2 of 4
MAP LEGEND MAP INFORMATION
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 3 of 4
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
CudA Crosby silt loam, fine-loamy
subsoil, 0 to 2 percent
slopes
0.1 0.4%
UcfA Urban land-Crosby silt loam
complex, fine-loamy subsoil,
0 to 2 percent slopes
3.7 13.6%
UkbB Urban land-Miami complex, 2
to 6 percent slopes
0.1 0.5%
UkbC Urban land-Miami complex, 6
to 12 percent slopes
0.1 0.5%
UmyA Urban land-Treaty complex, 0
to 1 percent slopes
2.8 10.0%
YclA Crosby silt loam, fine-loamy
subsoil-Urban land complex,
0 to 2 percent slopes
0.7 2.7%
Subtotals for Soil Survey Area 7.6 27.6%
Totals for Area of Interest 27.5 100.0%
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
UbaA Urban land-Brookston
complex, 0 to 2 percent
slopes
7.3 26.7%
UcfA Urban land-Crosby silt loam
complex, fine-loamy subsoil,
0 to 2 percent slopes
11.2 41.0%
UpaA Urban land-Patton silty clay
loam complex, 0 to 2 percent
slopes
1.3 4.8%
Subtotals for Soil Survey Area 19.9 72.4%
Totals for Area of Interest 27.5 100.0%
Soil Map—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 4 of 4
Hydric Rating by Map Unit—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 1 of 644206204420680442074044208004420860442092044209804420620442068044207404420800442086044209204420980564680564740564800564860564920564980565040565100565160565220
564680 564740 564800 564860 564920 564980 565040 565100 565160 565220
39° 56' 11'' N 86° 14' 35'' W39° 56' 11'' N86° 14' 11'' W39° 55' 59'' N
86° 14' 35'' W39° 55' 59'' N
86° 14' 11'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84
0 100 200 400 600
Feet
0 35 70 140 210
Meters
Map Scale: 1:2,630 if printed on A landscape (11" x 8.5") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
Hydric (100%)
Hydric (66 to 99%)
Hydric (33 to 65%)
Hydric (1 to 32%)
Not Hydric (0%)
Not rated or not available
Soil Rating Lines
Hydric (100%)
Hydric (66 to 99%)
Hydric (33 to 65%)
Hydric (1 to 32%)
Not Hydric (0%)
Not rated or not available
Soil Rating Points
Hydric (100%)
Hydric (66 to 99%)
Hydric (33 to 65%)
Hydric (1 to 32%)
Not Hydric (0%)
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at scales
ranging from 1:12,000 to 1:15,800.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Boone County, Indiana
Survey Area Data: Version 22, Sep 16, 2019
Soil Survey Area: Hamilton County, Indiana
Survey Area Data: Version 20, Sep 16, 2019
Your area of interest (AOI) includes more than one soil survey
area. These survey areas may have been mapped at different
scales, with a different land use in mind, at different times, or at
different levels of detail. This may result in map unit symbols, soil
properties, and interpretations that do not completely agree
across soil survey area boundaries.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Aug 1, 2018—Sep
30, 2018
Hydric Rating by Map Unit—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 2 of 6
MAP LEGEND MAP INFORMATION
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Hydric Rating by Map Unit—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 3 of 6
Hydric Rating by Map Unit
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
CudA Crosby silt loam, fine-
loamy subsoil, 0 to 2
percent slopes
2 0.1 0.4%
UcfA Urban land-Crosby silt
loam complex, fine-
loamy subsoil, 0 to 2
percent slopes
5 3.7 13.6%
UkbB Urban land-Miami
complex, 2 to 6
percent slopes
1 0.1 0.5%
UkbC Urban land-Miami
complex, 6 to 12
percent slopes
2 0.1 0.5%
UmyA Urban land-Treaty
complex, 0 to 1
percent slopes
40 2.8 10.0%
YclA Crosby silt loam, fine-
loamy subsoil-Urban
land complex, 0 to 2
percent slopes
5 0.7 2.7%
Subtotals for Soil Survey Area 7.6 27.6%
Totals for Area of Interest 27.5 100.0%
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
UbaA Urban land-Brookston
complex, 0 to 2
percent slopes
40 7.3 26.7%
UcfA Urban land-Crosby silt
loam complex, fine-
loamy subsoil, 0 to 2
percent slopes
5 11.2 41.0%
UpaA Urban land-Patton silty
clay loam complex, 0
to 2 percent slopes
40 1.3 4.8%
Subtotals for Soil Survey Area 19.9 72.4%
Totals for Area of Interest 27.5 100.0%
Hydric Rating by Map Unit—Boone County, Indiana, and Hamilton County, Indiana
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
3/6/2020
Page 4 of 6
WETLAND DETERMINATION DATA FORM – Midwest Region
Project/Site: 4810 Northwestern Dr. City/County: Carmel, Hamilton, IN Sampling Date: 3/4/20
Applicant/Owner: Crossroads Engineering State: Indiana Sampling Point: SP X1
Investigator(s): Randy Jones Section, Township, Range: Sect 7 17N, 3E Carmel, IN Quad
Landform (hillslope, terrace, etc.): terrace Local relief (concave, convex, none): flat
Slope %: 0-2% Lat/Long: -86.2405 39.935 decimal degrees Datum: 1983
Soil Map Unit Name: Brookston silty clay loam (Br) *USDA listed hydric soil* NWI Classification: none
Are climatic/hydrologic conditions on the site typical for this time of year? (If no, explain in Remarks.) Yes No (see remarks)
Are Vegetation Soil or Hydrology significantly disturbed? Are “Normal circumstances” present? Yes No (see remarks)
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain in Remarks.)
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No
Is the Sampled Area within a Wetland? YES NO Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Remarks:
According to www.weather.com, the Indianapolis area experienced approx. 2.1 inches precipitation in the week
previous to the site inspection. Temperature was in the mid 30's. Site conditions were typical, to wet for
this time of year. Ice and snow still present.
VEGETATION – Use scientific names of plants.
Tree Stratum plot size: 30’ radius Absolute
% Cover
Dominant
Species?
Indicator
Status? Dominance Test Worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A) 2.
3. Total Number of Dominant Species
Across All Strata: 3 (B) 4.
5. Percent of Dominant Species That Are
OBL, FACW, or FAC: 0% (A/B) 6.
Total Cover: 0%
Sapling/Shrub Stratum plot size: 30’ radius Prevalence Index Worksheet:
1. Total % Cover of: Multiply by:
2. OBL species X1=
3. FACW species X2=
4. FAC species X3=
5. FACU species X4=
Total Cover: 0% UPL species X5=
Herb Stratum Column Totals: (A) (B)
1. Schedonorus pratensis 25 Yes FACU Prevalence Index = B/A =
2. Seteria italica 20 Yes FACU
3. Symphyotrichum pilosum 20 Yes FACU Hydrophytic Vegetation Indicators:
4. Medicago lupulina 10 No FACU Rapid Test for Hydropytic Vegetation
5. Plantago lanceolata 10 No FACU Dominance Test is >50%
6. Prevalence Index is < 3.0
7. Morphological Adaptations (Provide supporting data in
Remarks or on a separate sheet) 8.
9. Problematic Hydrophytic Vegetation (Explain)
. Hydrophytic
Vegetation
Present?
YES NO
Total Cover: 85%
Woody Vine Stratum plot size: 30’ radius
1.
2.
3.
Total Cover: 0%
Remarks: (Include photo numbers here or on a separate sheet.)
Fallow, lawn area.
SOIL Sampling Point: X1
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(in.)
Matrix Redox Features
Color (moist) % Color (moist) % Type Loc Texture Remarks
0-4 10 YR 5/3 99 SiClLm Fill/disturbed.
4-14 10 YR 6/4 99 SiClLm
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. Location: PL=Pore Lining, M=Matrix
Hydric Soil Indicators: Indicators for Problematic Hydric Soils:
Histosol (A1) Sandy Gleyed Matrix (S4) Coast Prairie Redox (A16)
Histic Epipedon (A2) Sandy Redox (S5) Iron-Manganese Masses (F12)
Black Histic (A3) Stripped Matrix (S6) Very Shallow dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) Other (Explain in Remarks)
Stratified Layers (A5) Loamy Gleyed Matrix (F2) Indicators of hydrophytic vegetation and wetland hydrology must be
present.
2 cm Muck (A10) Depleted Matrix (F3)
Depleted Below Dark Surface
(A11) Redox Dark Surface (F6)
Thick Dark Surface (A12) Depleted Dark Surface (F7)
Sandy Mucky Mineral (S1) Redox Depressions (F8)
5 cm Mucky Peat or Peat (S3)
Restrictive Layer (if observed):
Hydric Soil
Present?
YES
NO Type:
Depth (in.):
Remarks:
No hydric indicators in the upper profile.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one is required; check all that apply) Secondary Indicators (minimum of two required)
Surface Water (A1) Water-Stained Leaves (B9) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Fauna (B13) Drainage Patterns (B10)
Saturation (A3) True Aquatic Plants (B14) Dry-Season Water Table (C2)
Water Marks (B1) Hydrogen Sulfide Odor (C1) Crayfish Burrows (C8)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots
(C3)
Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Presence of Reduced Iron (C4) Stunted or Stressed Plants (D1)
Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils
(C6)
Geomorphic Position (D2)
Iron Deposits (B5) Thin Muck Surface (C7) FAC-Neutral Test (D5)
Inundation Visible on Aerial Imagery (B7) Gauge or Well Data (D9)
Sparsely Vegetated Concave Surface (B8) Other (Explain in Remarks)
Field Observations:
Surface Water Present? Yes No x Depth (in.): 0 Wetland Hydrology Present?
YES
NO
Water Table Present? Yes No x Depth (in.): 0
Saturation Present?
(includes capillary
fringe)
Yes No x Depth (in.): 0
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
No wetland indicators.
Sample Point X1 Photos
Sample Point X1. Soil Pit.
Sample Point X1 Facing north.
WETLAND DETERMINATION DATA FORM – Midwest Region
Project/Site: 4810 Northwestern Dr. City/County: Carmel, Hamilton, IN Sampling Date: 3/4/20
Applicant/Owner: Crossroads Engineering State: Indiana Sampling Point: SP X2
Investigator(s): Randy Jones Section, Township, Range: Sect 7 17N, 3E Carmel, IN Quad
Landform (hillslope, terrace, etc.): terrace Local relief (concave, convex, none): flat
Slope %: 0-2% Lat/Long: -86.2407 39.9347 decimal degrees Datum: 1983
Soil Map Unit Name: Brookston silty clay loam (Br) *USDA listed hydric soil* NWI Classification: none
Are climatic/hydrologic conditions on the site typical for this time of year? (If no, explain in Remarks.) Yes No (see remarks)
Are Vegetation Soil or Hydrology significantly disturbed? Are “Normal circumstances” present? Yes No (see remarks)
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain in Remarks.)
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No
Is the Sampled Area within a Wetland? YES NO Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Remarks:
According to www.weather.com, the Carmel area experienced approx. 2.1 inches precipitation in the week previous
to the site inspection. Temperature was in the mid 30's. Site conditions were typical, to wet for this time
of year. Ice and snow still present.
VEGETATION – Use scientific names of plants.
Tree Stratum plot size: 30’ radius Absolute
% Cover
Dominant
Species?
Indicator
Status? Dominance Test Worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 6 (A) 2.
3. Total Number of Dominant Species
Across All Strata: 6 (B) 4.
5. Percent of Dominant Species That Are
OBL, FACW, or FAC: 0% (A/B) 6.
Total Cover: 0%
Sapling/Shrub Stratum plot size: 30’ radius Prevalence Index Worksheet:
1. Populus deltoides 2 Yes FAC Total % Cover of: Multiply by:
2. Cornus racemosa 2 Yes FAC OBL species X1=
3. Salix nira 2 Yes OBL FACW species X2=
4. FAC species X3=
5. FACU species X4=
Total Cover: 6% UPL species X5=
Herb Stratum Column Totals: (A) (B)
1. Typha agustifolia 25 Yes OBL Prevalence Index = B/A =
2. Seteria glauca 20 Yes FAC
3. Eleocharis obtusa 15 Yes OBL Hydrophytic Vegetation Indicators:
4. Juncus interior 10 No FAC Rapid Test for Hydropytic Vegetation
5. Carex vulpinoeadea 10 No FACW Dominance Test is >50%
6. Apocynum cannabinum 2 No FAC Prevalence Index is < 3.0
7. Morphological Adaptations (Provide supporting data in
Remarks or on a separate sheet) 8.
9. Problematic Hydrophytic Vegetation (Explain)
. Hydrophytic
Vegetation
Present?
YES NO
Total Cover: 82%
Woody Vine Stratum plot size: 30’ radius
1.
2.
3.
Total Cover: 0%
Remarks: (Include photo numbers here or on a separate sheet.)
Emergent wetland community with young willow, dogwood, and cottonwood saplings establishing.
SOIL Sampling Point: X2
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(in.)
Matrix Redox Features
Color (moist) % Color (moist) % Type Loc Texture Remarks
0-6 10 YR 5/2 99 SiClLm
6-14 10 YR 5/2 88 10 YR 5/6 12 C M SiClLm
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. Location: PL=Pore Lining, M=Matrix
Hydric Soil Indicators: Indicators for Problematic Hydric Soils:
Histosol (A1) Sandy Gleyed Matrix (S4) Coast Prairie Redox (A16)
Histic Epipedon (A2) Sandy Redox (S5) Iron-Manganese Masses (F12)
Black Histic (A3) Stripped Matrix (S6) Very Shallow dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) X Other (Explain in Remarks)
Stratified Layers (A5) Loamy Gleyed Matrix (F2) Indicators of hydrophytic vegetation and wetland hydrology must be
present.
Disturbed profile from previous site earthwork.
2 cm Muck (A10) X Depleted Matrix (F3)
Depleted Below Dark Surface
(A11) Redox Dark Surface (F6)
Thick Dark Surface (A12) Depleted Dark Surface (F7)
Sandy Mucky Mineral (S1) Redox Depressions (F8)
5 cm Mucky Peat or Peat (S3)
Restrictive Layer (if observed):
Hydric Soil
Present?
YES
NO Type:
Depth (in.):
Remarks:
Hydric features in the upper profile.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one is required; check all that apply) Secondary Indicators (minimum of two required)
Surface Water (A1) Water-Stained Leaves (B9) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Fauna (B13) Drainage Patterns (B10)
Saturation (A3) True Aquatic Plants (B14) Dry-Season Water Table (C2)
Water Marks (B1) Hydrogen Sulfide Odor (C1) Crayfish Burrows (C8)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots
(C3)
Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Presence of Reduced Iron (C4) Stunted or Stressed Plants (D1)
Algal Mat or Crust (B4) Recent Iron Reduction in Tilled Soils
(C6)
Geomorphic Position (D2)
Iron Deposits (B5) Thin Muck Surface (C7) FAC-Neutral Test (D5)
Inundation Visible on Aerial Imagery (B7) Gauge or Well Data (D9)
Sparsely Vegetated Concave Surface (B8) Other (Explain in Remarks)
Field Observations:
Surface Water Present? Yes No x Depth (in.): 0 Wetland Hydrology Present?
YES
NO
Water Table Present? Yes No x Depth (in.): 0
Saturation Present?
(includes capillary
fringe)
Yes No x Depth (in.): 0
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Inundation and surface saturation present.
Sample Point X2 Photos
Sample Point X2. Soil Pit.
Sample Point X2 Facing west.