Conservation Commission (linked)

Civil Engineers & Land Surveyors, P.C. 
 
BY:    MJO  .   
DATE:    7-1-23  . 
SUBJECT:    33 Kenyon Road Waterford, Connecticut                      . 
  SHEET No.:    1   OF   2  . 
 
 
 
 
CHECKED:    LJM  .   DATE:    7-1-23  . 
  Water Quality and Groundwater Recharge Volume Computations        .   PROJECT No.:    23-20  . 
Summer Hill 
1.  Narrative 
 
The project site was formerly developed and a single family residence was located in the southern portion of the 
site.  The residence has been removed and the only impervious surface remaining on the site is a small area of the 
former driveway apron.   
 
The impervious surface land coverage associated with the planned project is 27,490 square feet or 24.5% of the 
sites land area.  The total area of disturbance associated with the projects construction activities is approximately 
1.5 acres.   
 
The site land parcel is located in the Thames River subregional drainage basin (HUC 3000) and locally drains to the 
east to an immediately adjacent inland wetland approximately 20 acres in area.  The wetlands outlet watercourse 
crosses Vauxhall Street Extension to the east and joins Great Swamp Brook which flows southeasterly and enters 
the northern end of Brandegee Lake approximately 2,000 feet east of the project site. 
 
A planned stormwater infiltration area and the site grading in combination provide the required measures to address 
the stormwater quality and groundwater recharge guidance contained in the Connecticut Stormwater Quality 
Manual. 
 
The grading of the site has been developed to direct surface water runoff from the turnaround, parking area and the 
major portion of thee sidewalks to the stormwater infiltration area.  The stormwater infiltration area has been sized to 
temporarily store a 1.3 inch depth over the total of these areas and allow it to infiltrate into the soil mixture in the 
infiltration area bottom and the underlying natural soils.   
 
Stormwater runoff generated from less frequent, greater rainfall depth events in excess of this temporary storage 
volume will flow over a two-foot width vegetated berm and four horizontal to one vertical slope on the downgradient 
side of the area and to the inland wetland to the east. 
 
Stormwater runoff from the driveway to the waste and recycling receptacles area, the receptacles pad, the terrace 
and walk to the north of the planned building, and the building roof areas will be directed to the relatively flat sloped 
lawn areas adjacent to the buildings. 
 
The paved site access driveway grading has been developed to direct stormwater runoff from the driveway to the 
adjacent stone aggregate reserved parking area surfaces. 
 
2.  Water quality volume computed using the CT Stormwater Quality Manual equation 
 
     WQV = 1.0 in(R)(A)/12, where: 
 
     WQV, Water Quality Volume (Ac-ft) 
     R, Volumetric Runoff Coefficient = 0.05 + 0.009(I) 
     I, Percent impervious cover 
     A,  Site area (Ac.) 
 
     I = 24.5% 
     R = 0.05 + 0.009(24.5) = 0.27 
     A = 112,209 ft2 = 2.58 Ac. 
 
     WQV = 1 in(R)(A)/12 = (1 in)(0.27)(2.58)/12 = 0.0580 Ac-ft = 2,527 ft3 
 
3.  Groundwater recharge volume computed using the CT Stormwater Quality Manual equation 
 
     GRV = D(A)(I)/12, where: 
 
     GRV, Groundwater Recharge Volume (Ac-ft) 
     D,  Depth of runoff to be recharged (in) 
     A   Site area (Ac.) 
     I,   Net increase in percent of impervious cover 
 
 

Civil Engineers & Land Surveyors, P.C. 
 
BY:    MJO  .   
DATE:    7-1-23  . 
SUBJECT:    33 Kenyon Road Waterford, Connecticut                      . 
  SHEET No.:    2   OF   2  . 
 
 
 
 
CHECKED:    LJM  .   DATE:    7-1-23  . 
  Water Quality and Groundwater Recharge Volume Computations        .   PROJECT No.:    23-20  . 
Summer Hill 
     For Hydrologic Soil Group C soil types, D = 0.10 in 
 
     A = 112,209 ft2 = 2.58 Ac. 
 
     I (Existing) = 0.00 
 
     I (Proposed) = 27,490 ft2 / 112,209 ft2 = 0.245 
 
     Net increase in impervious surface coverage = 0.245 – 0.00 = 0.245 
 
     GRV = (0.10)(2.58)(0.245)/12 = 0.0053 = 231 ft3 
 
4.  Stormwater infiltration area volume 
Stage-Storage 
Elevation   
ft 
Area            
ft2 
Average Area    
ft2 
Incremental Volume   
ft3 
Cumulative Volume   
ft3 
Cumulative Volume      
Ac-ft 
139.00 
3,354 
3,354 
0 
0 
0 
139.50 
4,253 
3,804 
1,902 
1,902 
0.0437 
 
5.  Soil probe logs 
 
     P1 
       0” – 13” Topsoil 
     13” – 29” Tan silt loam subsoil 
 
     P2 
       0” – 12” Topsoil 
     12” – 34” Tan silt loam subsoil 
 
     P3 
       0” – 10” Topsoil 
     10” – 32” Tan silt loam subsoil 
 

9
Custom Soil Resource Report
Soil Map
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41°  22' 45'' N
72°  8' 13'' W
41°  22' 45'' N
72°  8' 0'' W
41°  22' 32'' N
72°  8' 13'' W
41°  22' 32'' N
72°  8' 0'' W
N
Map projection: Web Mercator   Corner coordinates: WGS84   Edge tics: UTM Zone 18N WGS84
0
50
100
200
300
Feet
0
25
50
100
150
Meters
Map Scale: 1:1,980 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 
1:12,000.
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: State of Connecticut
Survey Area Data: Version 22, Sep 12, 2022
Soil map units are labeled (as space allows) for map scales 
1:50,000 or larger.
Date(s) aerial images were photographed: Jun 14, 2022—Oct 6, 
2022
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.
Custom Soil Resource Report
10

State of Connecticut
18—Catden and Freetown soils, 0 to 2 percent slopes
Map Unit Setting
National map unit symbol: 2t2r2
Elevation: 0 to 1,390 feet
Mean annual precipitation: 36 to 71 inches
Mean annual air temperature: 39 to 55 degrees F
Frost-free period: 140 to 240 days
Farmland classification: Not prime farmland
Map Unit Composition
Catden and similar soils: 45 percent
Freetown and similar soils: 35 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Catden
Setting
Landform: Depressions, bogs, fens, depressions, depressions, kettles, marshes, 
swamps
Landform position (three-dimensional): Base slope, tread
Down-slope shape: Concave
Across-slope shape: Concave
Parent material: Highly decomposed herbaceous organic material and/or highly 
decomposed woody organic material
Typical profile
Oa1 - 0 to 2 inches: muck
Oa2 - 2 to 79 inches: muck
Properties and qualities
Slope: 0 to 2 percent
Surface area covered with cobbles, stones or boulders: 0.0 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Very poorly drained
Runoff class: Negligible
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high 
(0.14 to 14.17 in/hr)
Depth to water table: About 0 to 6 inches
Frequency of flooding: NoneRare
Frequency of ponding: Frequent
Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm)
Available water supply, 0 to 60 inches: Very high (about 26.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 5w
Hydrologic Soil Group: B/D
Ecological site: F144AY042NY - Semi-Rich Organic Wetlands
Hydric soil rating: Yes
Custom Soil Resource Report
13

Description of Freetown
Setting
Landform: Depressions, marshes, depressions, bogs, swamps, kettles
Landform position (three-dimensional): Tread, dip
Down-slope shape: Concave
Across-slope shape: Concave
Parent material: Highly decomposed organic material
Typical profile
Oe - 0 to 2 inches: mucky peat
Oa - 2 to 79 inches: muck
Properties and qualities
Slope: 0 to 2 percent
Surface area covered with cobbles, stones or boulders: 0.0 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Very poorly drained
Runoff class: Negligible
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high 
(0.14 to 14.17 in/hr)
Depth to water table: About 0 to 6 inches
Frequency of flooding: NoneRare
Frequency of ponding: Frequent
Available water supply, 0 to 60 inches: Very high (about 26.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 5w
Hydrologic Soil Group: B/D
Ecological site: F144AY043MA - Acidic Organic Wetlands
Hydric soil rating: Yes
Minor Components
Natchaug
Percent of map unit: 7 percent
Landform: Depressions, depressions, depressions
Landform position (three-dimensional): Base slope, tread
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: Yes
Whitman
Percent of map unit: 6 percent
Landform: Drainageways, depressions
Landform position (three-dimensional): Base slope
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: Yes
Timakwa
Percent of map unit: 5 percent
Landform: Depressions
Landform position (three-dimensional): Base slope
Down-slope shape: Concave
Across-slope shape: Concave
Custom Soil Resource Report
14

Hydric soil rating: Yes
Scarboro
Percent of map unit: 2 percent
Landform: Depressions, drainageways, outwash deltas, outwash terraces
Landform position (three-dimensional): Base slope, tread, dip
Down-slope shape: Concave
Across-slope shape: Concave, linear
Hydric soil rating: Yes
60C—Canton and Charlton fine sandy loams, 8 to 15 percent slopes
Map Unit Setting
National map unit symbol: 2w81z
Elevation: 0 to 1,620 feet
Mean annual precipitation: 36 to 71 inches
Mean annual air temperature: 39 to 55 degrees F
Frost-free period: 140 to 240 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Canton and similar soils: 50 percent
Charlton and similar soils: 35 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Canton
Setting
Landform: Hills, moraines, ridges
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Nose slope, side slope, crest
Down-slope shape: Convex, linear
Across-slope shape: Convex
Parent material: Coarse-loamy over sandy melt-out till derived from gneiss, 
granite, and/or schist
Typical profile
Ap - 0 to 7 inches: fine sandy loam
Bw1 - 7 to 15 inches: fine sandy loam
Bw2 - 15 to 26 inches: gravelly fine sandy loam
2C - 26 to 65 inches: gravelly loamy sand
Properties and qualities
Slope: 8 to 15 percent
Depth to restrictive feature: 19 to 39 inches to strongly contrasting textural 
stratification
Drainage class: Well drained
Runoff class: Low
Custom Soil Resource Report
15

Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high 
(0.14 to 14.17 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Very low (about 2.7 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Ecological site: F144AY034CT - Well Drained Till Uplands
Hydric soil rating: No
Description of Charlton
Setting
Landform: Ridges, ground moraines, hills
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down-slope shape: Convex, linear
Across-slope shape: Convex
Parent material: Coarse-loamy melt-out till derived from granite, gneiss, and/or 
schist
Typical profile
Ap - 0 to 7 inches: fine sandy loam
Bw - 7 to 22 inches: gravelly fine sandy loam
C - 22 to 65 inches: gravelly fine sandy loam
Properties and qualities
Slope: 8 to 15 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high 
(0.14 to 14.17 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm)
Available water supply, 0 to 60 inches: Moderate (about 6.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Ecological site: F144AY034CT - Well Drained Till Uplands
Hydric soil rating: No
Minor Components
Leicester
Percent of map unit: 5 percent
Landform: Ground moraines, drainageways, depressions, hills
Landform position (two-dimensional): Footslope, toeslope
Landform position (three-dimensional): Base slope
Custom Soil Resource Report
16

Down-slope shape: Concave, linear
Across-slope shape: Concave
Hydric soil rating: Yes
Chatfield
Percent of map unit: 5 percent
Landform: Ridges, hills
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Nose slope, side slope, crest
Down-slope shape: Convex
Across-slope shape: Linear, convex
Hydric soil rating: No
Sutton
Percent of map unit: 5 percent
Landform: Ridges, hills, ground moraines
Landform position (two-dimensional): Footslope
Landform position (three-dimensional): Base slope
Down-slope shape: Concave
Across-slope shape: Linear
Hydric soil rating: No
73C—Charlton-Chatfield complex, 0 to 15 percent slopes, very rocky
Map Unit Setting
National map unit symbol: 2w698
Elevation: 0 to 1,550 feet
Mean annual precipitation: 36 to 71 inches
Mean annual air temperature: 39 to 55 degrees F
Frost-free period: 140 to 240 days
Farmland classification: Not prime farmland
Map Unit Composition
Charlton, very stony, and similar soils: 50 percent
Chatfield, very stony, and similar soils: 30 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Charlton, Very Stony
Setting
Landform: Ridges, hills
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Side slope, crest, nose slope
Down-slope shape: Convex, linear
Across-slope shape: Convex
Parent material: Coarse-loamy melt-out till derived from granite, gneiss, and/or 
schist
Custom Soil Resource Report
17

Typical profile
Oe - 0 to 2 inches: moderately decomposed plant material
A - 2 to 4 inches: fine sandy loam
Bw - 4 to 27 inches: gravelly fine sandy loam
C - 27 to 65 inches: gravelly fine sandy loam
Properties and qualities
Slope: 3 to 15 percent
Surface area covered with cobbles, stones or boulders: 1.6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high 
(0.14 to 14.17 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm)
Available water supply, 0 to 60 inches: Moderate (about 8.7 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 6s
Hydrologic Soil Group: B
Ecological site: F144AY034CT - Well Drained Till Uplands
Hydric soil rating: No
Description of Chatfield, Very Stony
Setting
Landform: Hills, ridges
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Nose slope, side slope, crest
Down-slope shape: Convex
Across-slope shape: Linear, convex
Parent material: Coarse-loamy melt-out till derived from granite, gneiss, and/or 
schist
Typical profile
Oi - 0 to 1 inches: slightly decomposed plant material
A - 1 to 2 inches: fine sandy loam
Bw - 2 to 30 inches: gravelly fine sandy loam
2R - 30 to 40 inches: bedrock
Properties and qualities
Slope: 3 to 15 percent
Surface area covered with cobbles, stones or boulders: 1.6 percent
Depth to restrictive feature: 20 to 41 inches to lithic bedrock
Drainage class: Well drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Very low (0.00 to 0.00 
in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm)
Custom Soil Resource Report
18

Available water supply, 0 to 60 inches: Low (about 4.3 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 6s
Hydrologic Soil Group: B
Ecological site: F144AY034CT - Well Drained Till Uplands
Hydric soil rating: No
Minor Components
Rock outcrop
Percent of map unit: 5 percent
Hydric soil rating: No
Hollis, very stony
Percent of map unit: 5 percent
Landform: Hills, ridges
Landform position (two-dimensional): Summit, shoulder, backslope
Landform position (three-dimensional): Nose slope, side slope, crest
Down-slope shape: Convex
Across-slope shape: Linear, convex
Hydric soil rating: No
Leicester, very stony
Percent of map unit: 5 percent
Landform: Drainageways, depressions
Down-slope shape: Linear
Across-slope shape: Concave
Hydric soil rating: Yes
Sutton, very stony
Percent of map unit: 5 percent
Landform: Ground moraines, hills
Landform position (two-dimensional): Footslope
Landform position (three-dimensional): Base slope
Down-slope shape: Concave
Across-slope shape: Linear
Hydric soil rating: No
701A—Ninigret fine sandy loam, 0 to 3 percent slopes
Map Unit Setting
National map unit symbol: 2y07d
Elevation: 0 to 1,260 feet
Mean annual precipitation: 43 to 54 inches
Mean annual air temperature: 45 to 55 degrees F
Frost-free period: 140 to 185 days
Farmland classification: All areas are prime farmland
Custom Soil Resource Report
19

Map Unit Composition
Ninigret and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Ninigret
Setting
Landform: Kame terraces, outwash plains, moraines, kames, outwash terraces
Landform position (two-dimensional): Footslope, toeslope
Landform position (three-dimensional): Base slope, tread
Down-slope shape: Convex, linear
Across-slope shape: Convex, concave
Parent material: Coarse-loamy eolian deposits over sandy and gravelly 
glaciofluvial deposits derived from gneiss, granite, schist, and/or phyllite
Typical profile
Ap - 0 to 8 inches: fine sandy loam
Bw1 - 8 to 16 inches: fine sandy loam
Bw2 - 16 to 26 inches: fine sandy loam
2C - 26 to 65 inches: stratified loamy sand to loamy fine sand
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: 18 to 38 inches to strongly contrasting textural 
stratification
Drainage class: Moderately well drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high 
(0.14 to 14.17 in/hr)
Depth to water table: About 17 to 39 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm)
Available water supply, 0 to 60 inches: Low (about 3.4 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2w
Hydrologic Soil Group: C
Ecological site: F144AY026CT - Moist Silty Outwash
Hydric soil rating: No
Minor Components
Merrimac
Percent of map unit: 5 percent
Landform: Outwash plains, outwash terraces, eskers, kames, moraines
Landform position (two-dimensional): Summit, shoulder
Landform position (three-dimensional): Side slope, crest, tread
Down-slope shape: Convex
Across-slope shape: Convex
Hydric soil rating: No
Agawam
Percent of map unit: 5 percent
Custom Soil Resource Report
20

Landform: Kame terraces, outwash plains, outwash terraces, moraines, kames
Landform position (two-dimensional): Summit, shoulder
Landform position (three-dimensional): Side slope, crest, tread
Down-slope shape: Convex
Across-slope shape: Convex
Hydric soil rating: No
Tisbury
Percent of map unit: 3 percent
Landform: Outwash terraces, valley trains, deltas, outwash plains
Landform position (three-dimensional): Tread
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: No
Raypol
Percent of map unit: 2 percent
Landform: Drainageways, depressions
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: Yes
Custom Soil Resource Report
21

Hydrologic Soil Group—State of Connecticut
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
9/7/2023
Page 1 of 4
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41°  22' 45'' N
72°  8' 13'' W
41°  22' 45'' N
72°  8' 0'' W
41°  22' 32'' N
72°  8' 13'' W
41°  22' 32'' N
72°  8' 0'' W
N
Map projection: Web Mercator   Corner coordinates: WGS84   Edge tics: UTM Zone 18N WGS84
0
50
100
200
300
Feet
0
25
50
100
150
Meters
Map Scale: 1:1,980 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 Rating Polygons
A
A/D
B
B/D
C
C/D
D
Not rated or not available
Soil Rating Lines
A
A/D
B
B/D
C
C/D
D
Not rated or not available
Soil Rating Points
A
A/D
B
B/D
C
C/D
D
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 
1:12,000.
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: State of Connecticut
Survey Area Data: Version 22, Sep 12, 2022
Soil map units are labeled (as space allows) for map scales 
1:50,000 or larger.
Date(s) aerial images were photographed: Jun 14, 2022—Oct 6, 
2022
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.
Hydrologic Soil Group—State of Connecticut
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
9/7/2023
Page 2 of 4