MNR Galpin Blvd MnRAM Memo 7-23-18
1032 Seventh Street West, Suite 150 | Saint Paul, MN 55102 | mnrinc.us | 612.310.6260
July 23, 2018
Joe Jablonski
Lennar
16305 36th Ave. N.
Plymouth MN 55446
RE: MnRAM Assessment for Galpin Blvd. site, Chanhassen, MN
Mr. Jablonski,
Midwest Natural Resources, Inc. (MNR) was contracted by Lennar to provide wetland consulting
services for a survey area located east of Galpin Blvd. in Chanhassen, Carver County, Minnesota.
On July 17th, 2018 MNR conducted a MnRAM assessment on three wetland areas that are depicted
as Wetlands 1, 2 and 11on the attached Existing Conditions figure by Kjolhaug Environmental
Services, Inc.
Wetlands 1, 2 and 11 are three wetlands that are proposed be left in their natural state and are in
the vicinity of proposed road and building pad construction areas. Building pads and roads will be
constructed near each of these three wetlands so providing a MnRAM assessment for these
wetlands is needed for planning purposes. Other wetlands located on-site are either being proposed
to be fully impacted or are further away from any proposed building activity and did not required
to be assessed.
This wetland assessment was conducted to determine the wetland management classification for
each of the three wetland areas (Wetlands 1, 2 and 11). This information will be used for
determining building setback distances and buffer requirements for the proposed housing
development.
MnRAM Results
A MnRAM function and value assessment method was conducted on three wetland areas (Wetland
1, 2 and 11) that are located within the Galpin Blvd project area. From the MnRAM assessment
conducted, Wetland 1 (including the shoreline to Lake Lucy) would be classified as Preserve,
Wetland 2 would be classified as a Manage 1 wetland and Wetland 11 would be classified as a
Manage 2 wetland. Supporting MnRAM documents including the management classification and
site response reports for each wetland area are attached with this memo.
MNR appreciates the opportunity to provide this information to assist Lennar with this proposed
housing development project.
Midwest Natural Resources, Inc. – Galpin Blvd. Site, Chanhassen, Minnesota
2
Respectfully submitted,
Midwest Natural Resources, Inc.
Ken Arndt
Sr. Forest Ecologist
Certified Wetland Delineator
Figure 2 - Existing Conditions
Galpin Property (KES 2017-110)Chanhassen, Minnesota
Note: Boundaries indicated on this figure are approximate and do not constitute an official survey product.
¯0 600
Feet
Source: Minnesota DNR (2013)
Drainageway
Ravine
Transect
Ornamental Feature
Lake Edge
Wetland Boundary
Assessment Area
Wetland 141.90ac
Wetland 20.18ac
Wetland 60.02ac
Wetland 50.05ac
Wetland 40.20ac
Wetland 30.16ac
Wetland 130.03ac
Wetland 120.60ac
Wetland 112.79ac
Wetland 100.13ac
Wetland 90.38ac
Wetland 70.62ac
Wetland 80.17ac
Wetland 140.23ac
T-1
T-1
T-4
T-3
T-2
Area A
MnRAM
Management Classification
&
Site Response Reports
for
Wetlands 1, 2 & 11
Management Classification Report for
19
Galpin Blvd.Wetland 1
County
Corps Bank Service Area
CARVER
33
9
ID:
Minnesota (Shakopee)Watershed, #
Based on the MnRAM data input from field and office review and using the classification settings as shown below,
this wetland is classified as
Functional rank of this wetland
based on MnRAM data Functional Category
Self‐defined classification value
settings for this management level
Vegetative Diversity/Integrity
Habitat Structure (wildlife)
Amphibian Habitat
Fish Habitat
Shoreline Protection
Aesthetic/Cultural/Rec/Ed and Habitat
Stormwater/Urban Sensitivity and Vegetative Diversity
Wetland Water Quality and Vegetative Diversity
Characteristic Hydrology and Vegetative Diversity
Flood/Stormwater Attenuation*
Commericial use*
Downstream Water Quality*
Moderate
High
Low
High
High
Moderate
Not Applicable
High
High
Moderate
Exceptional
The critical function that caused this wetland to rank as
Moderate
Details of the formula for this action are shown below:
Preserve
Exceptional
Exceptional
High
Exceptional
High
Exceptional
Exceptional
High
High
‐
‐
‐
Preserve
Shoreline Protection
was
/High
/
/
/
Moderate
High
High
(Q30+Q31+Q32+Q33+Q34)/5
Value Description
Shoreline Protection
Question
30 Shoreline rooted vegetation (%cover )1
31 Shoreline wetland in-water width1
32 Shoreline emergent veg/erosion resistance1
33 Shoreline erosion potential0.5
34 Shoreline upslope veg/bank protection0.1
Monday, July 23, 2018This report was printed on:
* The classification value settings for these functions are not adjustable
Management Classification Report for
20
Galpin BlvdWetland 2
County
Corps Bank Service Area
CARVER
33
9
ID:
Minnesota (Shakopee)Watershed, #
Based on the MnRAM data input from field and office review and using the classification settings as shown below,
this wetland is classified as
Functional rank of this wetland
based on MnRAM data Functional Category
Self‐defined classification value
settings for this management level
Vegetative Diversity/Integrity
Habitat Structure (wildlife)
Amphibian Habitat
Fish Habitat
Shoreline Protection
Aesthetic/Cultural/Rec/Ed and Habitat
Stormwater/Urban Sensitivity and Vegetative Diversity
Wetland Water Quality and Vegetative Diversity
Characteristic Hydrology and Vegetative Diversity
Flood/Stormwater Attenuation*
Commericial use*
Downstream Water Quality*
Low
Moderate
Moderate
Moderate
Not Applicable
Moderate
Not Applicable
High
Moderate
Moderate
Moderate
The critical function that caused this wetland to rank as
Moderate
Details of the formula for this action are shown below:
Manage 1
High
High
Moderate
High
Moderate
High
High
High
High
‐
High
‐
Manage 1
Maintenance of Characteristic Amphibian Habitat
was
/Moderate
/
/
/
Moderate
Moderate
Moderate
(Q43) * [( Q44 + 2*Q23wildlife + Q14 +Q 41 + Q20
reversed)/6]
Value Description
Maintenance of Characteristic Amphibian Habitat
Question
14 Upland land use0.5
20 Stormwater runoff0.5
23 Buffer width0.5
41 Wildlife barriers0.5
43 Amphib breeding potential--fish presence1
44 Amphib & reptile overwintering habitat0.1
Monday, July 23, 2018This report was printed on:
* The classification value settings for these functions are not adjustable
Management Classification Report for
21
Galpin BlvdWetland 11
County
Corps Bank Service Area
CARVER
33
9
ID:
Minnesota (Shakopee)Watershed, #
Based on the MnRAM data input from field and office review and using the classification settings as shown below,
this wetland is classified as
Functional rank of this wetland
based on MnRAM data Functional Category
Self‐defined classification value
settings for this management level
Vegetative Diversity/Integrity
Habitat Structure (wildlife)
Amphibian Habitat
Fish Habitat
Shoreline Protection
Aesthetic/Cultural/Rec/Ed and Habitat
Stormwater/Urban Sensitivity and Vegetative Diversity
Wetland Water Quality and Vegetative Diversity
Characteristic Hydrology and Vegetative Diversity
Flood/Stormwater Attenuation*
Commericial use*
Downstream Water Quality*
Low
Moderate
Not Applicable
Not Applicable
Not Applicable
Moderate
Not Applicable
High
High
High
Moderate
The critical function that caused this wetland to rank as
Moderate
Details of the formula for this action are shown below:
Manage 2
Moderate
Moderate
Low
Moderate
Low
Moderate
‐
‐
‐
‐
‐
‐
Manage 2
Maintenance of Characteristic Wildlife Habitat Structure
was
/Low
/
/
/
‐
‐
‐
(Q3e*2+Q39+Q40+Q41+(Q23+Q24+Q25)/3+Q13+
Q20)/8
Value Description
Maintenance of Characteristic Wildlife Habitat Str
Question
13 Outlet: hydrologic regime1
20 Stormwater runoff0.5
23 Buffer width0.5
24 Adjacent area Management1
25 Adjacent area diversity0.5
39 Detritus0.5
3e <No Description Found>0.1
40 Wetland interspersion/landscape0.5
* The classification value settings for these functions are not adjustable
Management Classification Report for
21
Galpin BlvdWetland 11
County
Corps Bank Service Area
CARVER
33
9
ID:
Minnesota (Shakopee)Watershed, #
41 Wildlife barriers0.5
Monday, July 23, 2018This report was printed on:
* The classification value settings for these functions are not adjustable
19Galpin Blvd.
MnRAM: Site Response Record
For Wetland:Wetland 1
Location: 10-116-23-10-001
4 No
5 No
6 No
7 Depressional/FlowThru
8-1 15 inches
8-2 20%
9 100 acres
11-Upland Soil Lester-Kilkenny loams
11-Wetland Soil Muskego-Houghton, Essexville
12 B
13 A
14 C
15 A
16 90%
17 B
18 A
19 B
20 B
21 B
22 A
23 400 feet
Outlet for flood control
Outlet for hydro regime
Dominant upland land use
Wetland soil condition
Vegetation (% cover)
Emerg. veg flood resistance
Sediment delivery
Upland soils (soil group)
Stormwater runoff
Subwatershed wetland density
Channels/sheet flow
Adjacent buffer width
Listed, rare, special species?
Rare community or habitat?
Pre-European-settlement condition?
Hydrogeomorphology / topography:
Maximum water depth
% inundated
Immediate drainage--local WS
10 Esimated size/existing site: (see #66)
PEMB Type 2
Plant Community:Fresh (Wet) Meadow
Cowardin Classification: Circular 39:
PEMB Type 2
Plant Community:Sedge Meadow
Cowardin Classification: Circular 39:
PEMC Type 3
Plant Community:Shallow Marsh
Cowardin Classification: Circular 39:
PFO1B Type 7
Plant Community:Hardwood Swamp
Cowardin Classification: Circular 39:
PEMF Type 4
Plant Community:Deep Marsh
Cowardin Classification: Circular 39:
24-A 100%
24-B 0%
24-C 0%
25-A 0%
25-B 100%
25-C 0%
26-A 25%
26-B 50%
26-C 25%
27 A
28 B
29 Yes
30 90%
31 100 feet
32 A
33 B
34 C
35 No
36 No
37 A
38 A
39 B
40 A
41 A
42 Adequate
43 B
44 C
45
46 B
47
48 No
49 C
Adjacent area management
Full
Manicured
Bare
Adjacent area diversity/structure
Native
Mixed
Sparse
Gentle
Moderate
Steep
Adjacent area slope
Downstream sens./WQ protect.
Nutrient loading
Shoreline wetland?
Rooted veg., % cover
Wetland in-water width
Emerg. veg. erosion resistance
Erosion potential of site
Upslope veg./bank protection
Rare wildlife?
Scare/Rare/S1/S2 community
Vegetative cover
Veg. community interspersion
Wetland detritus
Interspersion on landscape
Wildlife barriers
Hydroperiod adequacy
Fish presence
Overwintering habitat
Wildlife species (list)
Fish habitat quality
Fish species (list)
Unique/rare opportunity
Wetland visibility
Shoreline Wetland
Amphibian-breeding potential
50 Yes
51 A
52 C
53 A
54 B
55 A
56 B
57 NA
58 Recharge
59 Recharge
60 Recharge
61 Discharge
62 Discharge
63 Discharge
64 No
65
66 41.9
0
0
67 0 feet
68
69 0
70 0
71 B
72 B
Proximity to population
Public ownership
Public access
Human influence on wetland
Human influence on viewshed
Spatial buffer
Recreational activity potential
Commercial crop--hydro impact
Wetland soils
Subwatershed land use
Wetland size/soil group
Wetland hydroperiod
Inlet/Outlet configuration
Upland topo relief
Restoration potential
LO affected by restoration
Existing size
Restorable size
Potential new wetland
Average width of pot. buffer
Ease of potential restoration
Hydrologic alterations
Potential wetland type
Stormwater sensitivity
Additional treatment needs
Groundwater-specific questions
For functional ratings, please run the
Summary tab report.
Additional information
This report printed on: 7/23/2018
Minnesota (Shakopee)Watershed
: Service Area:9WS#33
20Galpin Blvd
MnRAM: Site Response Record
For Wetland:Wetland 2
Location: 10-116-23-03-001
4 No
5 No
6 No
7 Depressional/FlowThru
8-1 12 inches
8-2 10%
9 15 acres
11-Upland Soil Lester-Kilkenny loams
11-Wetland Soil Houghton and Muskego soils
12 B
13 B
14 B
15 A
16 95%
17 B
18 A
19 B
20 B
21 B
22 C
23 100 feet
24-A 75%
24-B 25%
24-C 0%
25-A 0%
25-B 100%
25-C 0%
Outlet for flood control
Outlet for hydro regime
Dominant upland land use
Wetland soil condition
Vegetation (% cover)
Emerg. veg flood resistance
Sediment delivery
Upland soils (soil group)
Stormwater runoff
Subwatershed wetland density
Channels/sheet flow
Adjacent buffer width
Adjacent area management
Full
Manicured
Bare
Adjacent area diversity/structure
Native
Mixed
Sparse
Listed, rare, special species?
Rare community or habitat?
Pre-European-settlement condition?
Hydrogeomorphology / topography:
Maximum water depth
% inundated
Immediate drainage--local WS
10 Esimated size/existing site: (see #66)
PEMC Type 3
Plant Community:Shallow Marsh
Cowardin Classification: Circular 39:26-A 50%
26-B 50%
26-C 0%
27 B
28 B
29 No
30 0%
31 0 feet
32
33
34
35 No
36 No
37 C
38 NA
39 B
40 A
41 B
42 Adequate
43 A
44 C
45
46 C
47
48 No
49 A
50 Yes
51 A
52 C
53 B
54 C
55 B
56 C
57 NA
Gentle
Moderate
Steep
Adjacent area slope
Downstream sens./WQ protect.
Nutrient loading
Shoreline wetland?
Rooted veg., % cover
Wetland in-water width
Emerg. veg. erosion resistance
Erosion potential of site
Upslope veg./bank protection
Rare wildlife?
Scare/Rare/S1/S2 community
Vegetative cover
Veg. community interspersion
Wetland detritus
Interspersion on landscape
Wildlife barriers
Hydroperiod adequacy
Fish presence
Overwintering habitat
Wildlife species (list)
Fish habitat quality
Fish species (list)
Unique/rare opportunity
Wetland visibility
Proximity to population
Public ownership
Public access
Human influence on wetland
Human influence on viewshed
Spatial buffer
Recreational activity potential
Commercial crop--hydro impact
Shoreline Wetland
Amphibian-breeding potential
58 Discharge
59 Recharge
60 Recharge
61 Recharge
62 Discharge
63 Discharge
64 No
65
66 7
0
0
67 0 feet
68
69 0
70 0
71 B
72 C
Wetland soils
Subwatershed land use
Wetland size/soil group
Wetland hydroperiod
Inlet/Outlet configuration
Upland topo relief
Restoration potential
LO affected by restoration
Existing size
Restorable size
Potential new wetland
Average width of pot. buffer
Ease of potential restoration
Hydrologic alterations
Potential wetland type
Stormwater sensitivity
Additional treatment needs
Groundwater-specific questions
For functional ratings, please run the
Summary tab report.
Additional information
This report printed on: 7/23/2018
Minnesota (Shakopee)Watershed
: Service Area:9WS#33
21Galpin Blvd
MnRAM: Site Response Record
For Wetland:Wetland 11
Location: 10-116-23-03-001
4 No
5 No
6 No
7 Depressional/Isolated
8-1 0 inches
8-2 0%
9 10 acres
11-Upland Soil Lester-Kilkenny loams
11-Wetland Soil Klossner muck
12 A
13 A
14 B
15 A
16 100%
17 B
18 A
19 B
20 B
21 B
22 A
23 200 feet
24-A 100%
24-B 0%
24-C 0%
25-A 0%
25-B 100%
25-C 0%
Outlet for flood control
Outlet for hydro regime
Dominant upland land use
Wetland soil condition
Vegetation (% cover)
Emerg. veg flood resistance
Sediment delivery
Upland soils (soil group)
Stormwater runoff
Subwatershed wetland density
Channels/sheet flow
Adjacent buffer width
Adjacent area management
Full
Manicured
Bare
Adjacent area diversity/structure
Native
Mixed
Sparse
Listed, rare, special species?
Rare community or habitat?
Pre-European-settlement condition?
Hydrogeomorphology / topography:
Maximum water depth
% inundated
Immediate drainage--local WS
10 Esimated size/existing site: (see #66)
PEMB Type 2
Plant Community:Fresh (Wet) Meadow
Cowardin Classification: Circular 39:26-A 20%
26-B 80%
26-C 0%
27 B
28 B
29 No
30 0%
31 0 feet
32
33
34
35 No
36 No
37 NA
38 NA
39 B
40 B
41 B
42 Inadequate
43 A
44
45
46 NA
47
48 No
49 B
50 Yes
51 A
52 C
53 B
54 C
55 A
56 C
57 NA
Gentle
Moderate
Steep
Adjacent area slope
Downstream sens./WQ protect.
Nutrient loading
Shoreline wetland?
Rooted veg., % cover
Wetland in-water width
Emerg. veg. erosion resistance
Erosion potential of site
Upslope veg./bank protection
Rare wildlife?
Scare/Rare/S1/S2 community
Vegetative cover
Veg. community interspersion
Wetland detritus
Interspersion on landscape
Wildlife barriers
Hydroperiod adequacy
Fish presence
Overwintering habitat
Wildlife species (list)
Fish habitat quality
Fish species (list)
Unique/rare opportunity
Wetland visibility
Proximity to population
Public ownership
Public access
Human influence on wetland
Human influence on viewshed
Spatial buffer
Recreational activity potential
Commercial crop--hydro impact
Shoreline Wetland
Amphibian-breeding potential
58 Discharge
59 Recharge
60 Recharge
61 Recharge
62 Recharge
63 Discharge
64 No
65
66 2.8
0
0
67 0 feet
68
69 0
70 0
71 B
72 C
Wetland soils
Subwatershed land use
Wetland size/soil group
Wetland hydroperiod
Inlet/Outlet configuration
Upland topo relief
Restoration potential
LO affected by restoration
Existing size
Restorable size
Potential new wetland
Average width of pot. buffer
Ease of potential restoration
Hydrologic alterations
Potential wetland type
Stormwater sensitivity
Additional treatment needs
Groundwater-specific questions
For functional ratings, please run the
Summary tab report.
Additional information
This report printed on: 7/23/2018
Minnesota (Shakopee)Watershed
: Service Area:9WS#33