Wetland Report Institute Rd-Grafton_3-13-2017.pdf

March 13, 2017

Email (mviolette@nitscheng.com)

Mr. Mark Violette Nitsch Engineering 120 Front Street, Suite 820 Worcester, MA 01608

Re: Wetland Resource Area Analysis Report [LEC File #: NEI\17-049.04]

Massachusetts Department of Youth Services 42 Institute Road Assessor’s Map 110, Lot 21 Grafton, Massachusetts

Dear Mr. Violette:

Pursuant to your request, LEC Environmental Consultants, Inc., (LEC) conducted a site evaluation and Wetland Resource Area boundary determination at 42 Institute Road (Assessor’s Map 110, Lot 21) in Grafton, Massachusetts. Our site evaluation was conducted in accordance with the Massachusetts Wetlands Protection Act (Act, M.G.L. c. 131, s. 40) and its implementing Regulations (Act Regulations, 310 CMR 10.00), the Town of Grafton General Wetlands Protection Bylaw (Article 25, the Bylaw) and its implementing Regulations (Amended May 2014, the Bylaw Regulations), and the criteria provided in Delineating Bordering Vegetated Wetlands Under the Massachusetts Wetlands Protection Act (March 1995) and Field Indicators for Identifying Hydric Soils in New England (April 2004). The following report provides a general site description, wetland delineation methodology, and a description of the Wetland Resource Areas and potential regulatory implications.

General Site Description The Massachusetts Department of Youth Services is located east of Institute Road, south of Westboro Road (Route 30) and the MBTA Commuter Rail Line, west of Discovery Drive and north of Wesson Street within the northern portion of Grafton, Massachusetts. Rural residential areas associated with Institute Road, Wesson Street, and East Street are located to south and southwest of the property, while undeveloped forested areas are located to the north, south, east, and west. While the property totals 81.2± acres and contains a series of buildings, parking areas, fields, forested uplands and wetlands, and other site amenities, this Wetland Resource Area Analysis pertains to a 2.5± acre, centrally-located portion of the property (the Survey Area). The Survey Area contains a maintained field, forested uplands and wetlands, and a driveway. Topography within the Survey Area generally descends easterly, with a topographic high point located west of Institute Road at elevation 442± feet. From the highest point, the

PLYMOUTH, MA WAKEFIELD, MA WORCESTER, MA RINDGE, NH

Survey Area descends gently approximately 40 feet to the eastern boundary. According to the USGS Topographic Map, there are no mapped perennial streams located on or within 200 feet of the Survey Area.

The forested upland portions of the site within the northwest Survey Area contain a canopy of eastern white pine (Pinus strobus), white oak (Quercus alba), and Norway maple (Acer platanoides). The understory contains saplings from the canopy, entanglements of multiflora rose (Rosa multiflora), oriental bittersweet (Celastrus orbiculatus), and honeysuckle (Lonicera sp.). Groundcover contains seedlings from the canopy and understory, hay scented fern (Dennstaedtia punctilobula), and poison ivy (Toxicodendron radicans). Within the southern Survey Area the scrub-shrub upland contains a sparse canopy of individuals of black locust (Robinia pseudoacacia), ash (Fraxinus sp.) and pignut hickory (Carya glabra). The understory contains patches of honeysuckle, multiflora rose, oriental bittersweet, with individuals of silky dogwood (Cornus amomum) along the BVW boundary. Upland groundcover is was unidentified due to time of year observations. Within the northeastern portion of the Survey Area, the upland scrub-shrub contains entanglements of multiflora rose and patches of pokeweed (Phytolacca americana).

According to the Natural Resource Conservation Service (NRCS) Soil Survey (Web Soil Survey and Worcester County, Massachusetts, Southern Part, Version 9, September 15, 2016), the eastern half of the Survey Area consist of Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony while the western half of the Survey Area consists of Canton fine sandy loam, 0 to 8 percent slopes, extremely stony.

NRCS describes Scituate soils as very deep, gently sloping, and moderately well drained soils, located on hills within glacial till uplands. Canton soils are described as very deep, well drained soils on the lower slopes of hills and ridges. LEC confirmed the presence of these soils in the field.

LEC inspected soil conditions within the forested upland along the BVW boundary using a hand-held Dutch-style soil auger and observed a fine sandy loam topsoil (A Horizon) measuring 6 inches thick with a soil matrix color of 10YR 5/6. The topsoil transitions with depth to a weathered, fine sandy loam subsoil (Bw Horizon) with a soil matrix color 10YR 5/6 and up to a depth of 18 inches. No redoximorphic features were observed within the observed forested upland soil profiles. LEC also inspected soil conditions within the central field along the IVW boundary and observed a 9-inch-thick fine sandy loam topsoil (A horizon) with a soil matrix color of 10YR 3/3. The topsoil is underlain by a 5-inch-thick weathered gravelly sandy loam subsoil (Bw horizon) with a soil matrix color of 2.5Y 5/4. Redoximorphic depletions were found at a depth of 12 inches with a soil color of 10YR 5/2. These soil profiles are not considered ‘hydric’ according to the Field Indicators Guide.

Natural Heritage and Endangered Species Program (NHESP) Designation According to the 13th Edition (October 1, 2008) of the Natural Heritage Endangered Species Program (NHESP) Massachusetts Natural Heritage Atlas – Grafton Quadrangle, the Site is not located within Estimated and Priority Habitat of Rare Species or Priority Habitat of Rare Species. In addition, there are no mapped certified or potential vernal pools within the Survey Area; however, a mapped vernal pool is located off-site approximately 100 feet west of Institute Road.

FEMA Floodplain Designation According to the July 4, 2011 Federal Emergency Management Agency Flood Insurance Rate Map for Worcester County, Massachusetts (Map No: 25027C0827E), the property is located within Zone X (unshaded): Areas determined to be outside the 0.2% annual chance floodplain.

Wetland Boundary Determination On March 8, 2017, LEC conducted a site evaluation to identify and characterize existing on-site protectable Wetland Resource Areas. Based on our observations, LEC determined that the Survey Area and areas within 100 feet of the Survey Area contains Bordering Vegetated Wetland (BVW) and Isolated Vegetated Wetland (IVW).

LEC delineated the BVW/IVW boundaries with sequentially-numbered, blaze-orange surveyor’s tape with the words “LEC Resource Area” printed in black, as well as orange pin flags. LEC flagging stations W100 through W104, W200 through W202, and W300 through W311demarcate the BVW boundaries, while W1 through W8 demarcates the IVW boundary as they relate to the Survey Area.

Bordering Vegetated Wetland Bordering Vegetated Wetland (BVW) is defined as: freshwater wetlands which border on creeks, rivers, streams, ponds, and lakes…Bordering Vegetated Wetlands are areas where the soils are saturated and/or inundated such that they support a predominance of wetland indicator plants…The boundary of Bordering Vegetated Wetlands is the line within which 50% or more of the vegetational community consists of wetland indicator plants and saturated or inundated conditions exist [310 CMR 10.55(2)].

BVW is not defined in the Bylaw or Bylaw Regulations, so the above definition prevails.

There are three (3) BVWs located in the northern portion of the Survey Area. The W300 series to the northwest and the W100 series to the northeast are characterized as forested wetlands, while the W200 series located to the north is characterized as a scrub-shrub wetland.

The W300 series is located at the bottom of a moderate slope that descends from Institute Road. LEC inspected soil conditions within the W300 series using a hand-held Dutch-style soil auger and generally observed a 10-inch thick fine sandy loam topsoil (A Horizon) with a soil matrix color of 10YR 2/2. The topsoil transitions with depth to a depleted fine sandy loam subsoil (Bg horizon) with a soil matrix color of 10YR 4/2 up to 15 inches. Refusal was encountered at/below 15 inches. Distinct redoximorphic depletions and concentrations were observed within the subsoil. This soil profile is considered ‘hydric’ according to the Field Indicators Guide.

The W100 and W200 series are located at the toe of fill slope descending from the field and eastern driveway. LEC inspected soil conditions within these areas using a hand-held Dutch-style soil auger and generally observed a mucky fine sandy loam topsoil (A horizon) with a soil matrix color of 10YR 3/1 up to a depth of 24 inches. At the time of LEC’s observations the soil was saturated to the surface, and groundwater was at 5 inches. At 17 inches the soil transitioned to a gravelly, fine sandy loam.

Redoximorphic concentrations were observed at approximately 17 inches. This soil profile is considered ‘hydric’ according to the Field Indicators Guide.

These W100, W200, and W300 series generally contain similar plant communities with slight variations in community composition and density. The canopy contains red maple (Acer rubrum), black locust, with inclusions of yellow birch (Betula alleghaniensis), and eastern white pine. The understory contains saplings from the canopy, sapling Norway maple, sapling American elm (Ulmus americana), entanglements of multiflora rose and oriental bittersweet, silky dogwood, and viburnum (Viburnum sp.).

The ground cover consists of deer-tongue (Dichanthelium clandestinum), skunk cabbage (Symplocarpus foetidus), sensitive fern (Onoclea sensibilis), bedstraw (Gallium sp.), various sedges (Carex spp.) and unidentified herbaceous cover.

Isolated Vegetated Wetland According to the Bylaw, except as permitted by the Conservation Commission or as provided in this by-law, no person shall remove, fill, dredge, build upon, or alter the following resource areas: within 100 feet of any freshwater wetland vegetative wetland, marsh, wet meadow, bog or swamp. [Article 25, Section 2].

Due to the above, it is LEC’s understanding that the Grafton Conservation Commission has jurisdiction over Isolated Vegetated Wetlands and the land within 100-feet. An Isolated Vegetated Wetland, characterized as a wet meadow, is located within the southern portion of the Survey Area, adjacent to the parking area and field. It is located at the bottom of a steep slope that descends from the buildings and parking area. The shrub layer, confined to the western perimeter of the wetland, is sparse and consists of silky dogwood. Ground cover is dense and contains blue vervain (Verbena hastata), goldenrod (Solidago spp.), purple loosestrife (Lythrum salicaria), beggar-ticks (Bidens sp.), tussock sedge (Carex stricta), deer-tongue, and wool grass (Scirpus cyperinus).

LEC inspected soils within the IVW and observed an 11-inch thick fine, sandy loam historic-plow layer (Ap horizon) with a soil matrix color of 10YR3/1 and redoximorphic concentrations observed within 5 inches. The historic-plow layer is underlain by a gravelly, fine sandy loam topsoil (A2 horizon) with the same soil matrix color, up to 23 inches. Wetland flags W1 though W8 demarcate the boundary of the

IVW.

Summary

LEC conducted a site evaluation and wetland delineation on March 8, 2017 to determine the extent of Wetland Resource Areas subject to jurisdiction under the Act and Act Regulations, Bylaw, and Bylaw Regulations. Based on our site evaluation and review of pertinent maps, LEC determined that the Wetland Resource Areas associated with the Survey Area include BVW and IVW. Any work proposed within BVW or IVW, or their corresponding 100-foot Buffer Zones will require compliance with performance standards and filing for the appropriate permits with the Grafton Conservation Commission and/or the Massachusetts Department of Environmental Protection, and may require additional wetlands permitting depending on the extent and scope of wetland alteration. As previously indicated, Wetland Resource Area boundaries were demarcated by LEC in accordance with the applicable state and local regulations.

Thank you for the opportunity to provide these services. Should you have any questions or require additional information, please contact me in our Worcester office at (508) 753-3077 or via email at akendall@lecenvironmental.com.

Sincerely, LEC Environmental Consultants, Inc.

Andrea L. Kendall Senior Environmental Scientist

Enclosures:

Nitsch Engineering Survey Limits Sketch, December 9, 2016 MassDEP Bordering Vegetated Wetland Delineation Field Data Forms (1 set) USGS Topographic Map USGS Color Ortho Imagery with NHESP Estimated & Priority Habitats Flood Insurance Rate Map alk: projects\17-049.04

MassDEP Bordering Vegetated Wetland (310 CMR 10.55) Delineation Field Data Form

Applicant: Prepared by: LEC Environmental Consultants, Inc. Project location: 42 Institute Road, Grafton, MA DEP File #: (Not yet issued)

LEC File#: NEI\17-049.04 Check all that apply:

Vegetation alone presumed adequate to delineate BVW boundary: fill out Section I only Vegetation and other indicators of hydrology used to delineate BVW boundary: fill out Sections I and II Method other than dominance test used (attach additional information)

Section I.

Vegetation Observation Plot Number: 2 (upland) Transect Number: 1 (near W5) Date of Delineation: March 8, 2017 A. Sample Layer & Plant Species (by common/scientific name)

B. Percent Cover (midpoints used)

C. Percent Dominance

D. Dominant Plant (yes or no) E. Wetland Indicator Category*

Groundcover

Unidentified forbs and grasses (mowed field) 100% 100% Yes UPL (presumed)

Shrubs (Absent)

Saplings (Absent)

Canopy (Absent)

* Use an asterisk to mark wetland indicator plants: plant species listed in the Wetlands Protection Act (MGL c.131, s.40); plants in the genus Sphagnum; plants listed as FAC, FAC+, FACW-, FACW, FACW+, or OBL; or plants with physiological or morphological adaptations. If any plants are identified as wetland indicator plants due to physiological or morphological adaptations, describe the adaptation next to the asterisk.

Vegetation conclusion:

Number of dominant wetland indicator plants: 0 Number of dominant non-wetland indicator plants: 1

Is the number of dominant wetland plants equal to or greater than the number of dominant non-wetland plants? yes no

If vegetation alone is presumed adequate to delineate the BVW boundary, submit this form with the Request for Determination of Applicability or Notice of Intent

Section II. Indicators of Hydrology

Hydric Soil Interpretation

1. Soil Survey

Is there a published soil survey for this site? yes no title/date: NRCS Web Soil Survey, Worcester County, Southern Part, Version 9, September 15, 2016 map number: N/A soil type mapped: Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony hydric soil inclusions: None

Are field observations consistent with soil survey? yes no

Remarks: Soil texture and color is similar

2. Soil Description Horizon Depth Matrix Color Mottles Color Ap Horizon 0-9” 10YR 3/3 fsl Bw horizon 9-14”” 2.5Y 5/4 gravelly sl @ 12” 10YR 5/2

Remarks:

Refusal at 14”

3. Other:

Conclusion: Is soil hydric? yes no

Other Indicators of Hydrology: (check all that apply & describe)

Site Inundated: __________________________________

Depth to free water in observation hole: _______________

Depth to soil saturation in observation hole: _______________

Water marks: ____________________________________

Drift lines: _______________________________________

Sediment Deposits: ________________________________

Drainage patterns in BVW: __________________________

Oxidized rhizospheres: _____________________________

Water-stained leaves: ______________________________

Recorded Data (streams, lake, or tidal gauge; aerial photo; other):

Other: __________________________________________________

Vegetation and Hydrology Conclusion Yes No

Number of wetland indicator plants > # of non-wetland indicator plants X

Wetland hydrology present:

Hydric soil present X

Other indicators of hydrology present X

Sample location is in a BVW X

Submit this form with the Request for Determination of Applicability or Notice of Intent.

MassDEP Bordering Vegetated Wetland (310 CMR 10.55) Delineation Field Data Form

Applicant: Prepared by: LEC Environmental Consultants, Inc. Project location: 42 Institute Road, Grafton, MA DEP File #: (Not yet issued)

LEC File#: NEI\17-049.04 Check all that apply:

Vegetation alone presumed adequate to delineate BVW boundary: fill out Section I only Vegetation and other indicators of hydrology used to delineate BVW boundary: fill out Sections I and II Method other than dominance test used (attach additional information)

Section I.

Vegetation Observation Plot Number: 1

(wetland) Transect Number: 1 (near W5) Date of Delineation: March 8, 2017

A. Sample Layer & Plant Species (by common/scientific name)

B. Percent Cover (midpoints used)

C. Percent Dominance

D. Dominant Plant (yes or no) E. Wetland Indicator Category*

Groundcover

Deer-tongue (Dichanthelium clandestinum) 63% 67% Yes FACW* Blue vervain (Verbena hastata) 20.5% 22% Yes FACW* Beggar-ticks (Bidens sp.) 10.5% 11% No FACW or wetter*

Shrubs (Absent)

Saplings (Absent)

Canopy (Absent)

* Use an asterisk to mark wetland indicator plants: plant species listed in the Wetlands Protection Act (MGL c.131, s.40); plants in the genus Sphagnum; plants listed as FAC, FAC+, FACW-, FACW, FACW+, or OBL; or plants with physiological or morphological adaptations. If any plants are identified as wetland indicator plants due to physiological or morphological adaptations, describe the adaptation next to the asterisk.

Vegetation conclusion:

Number of dominant wetland indicator plants: 2 Number of dominant non-wetland indicator plants: 0

Is the number of dominant wetland plants equal to or greater than the number of dominant non-wetland plants? yes no

If vegetation alone is presumed adequate to delineate the BVW boundary, submit this form with the Request for Determination of Applicability or Notice of Intent

Section II. Indicators of Hydrology

Hydric Soil Interpretation

1. Soil Survey

Is there a published soil survey for this site? yes no title/date: NRCS Web Soil Survey, Worcester County, Southern Part, Version 9, September 15, 2016 map number: N/A soil type mapped: Scituate fine sandy loam, 3 to 8 percent slopes, extremely stony hydric soil inclusions: None

Are field observations consistent with soil survey? yes no

Remarks: Soil textures are similar; however, soil colors are darker than what is described.

2. Soil Description Horizon Depth Matrix Color Mottles Color Ap Horizon 0-11” 10YR 3/1 fsl @ 5” 10YR 5/4 A2 horizon 11-23” 10YR 3/1 gravelly sl

Remarks:

3. Other:

Conclusion: Is soil hydric? yes no

Other Indicators of Hydrology: (check all that apply & describe)

Site Inundated: __________________________________

Depth to free water in observation hole: _______________

Depth to soil saturation in observation hole: _________

Water marks: ____________________________________

Drift lines: _______________________________________

Sediment Deposits: ________________________________

Drainage patterns in BVW: __________________________

Oxidized rhizospheres: _____________________________

Water-stained leaves: ______________________________

Recorded Data (streams, lake, or tidal gauge; aerial photo; other):

Other: __________________________________________________

Vegetation and Hydrology Conclusion Yes No

Number of wetland indicator plants > # of non-wetland indicator plants X

Wetland hydrology present:

Hydric soil present X

Other indicators of hydrology present X

Sample location is in a BVW X

Submit this form with the Request for Determination of Applicability or Notice of Intent.

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42 Institute Road Grafton, MA

March 13, 2017

SITE

Environmental Consultants, Inc.

Wakefield, MA 781.245.2500 www.lecenvironmental.com

0 500250 Feet

Images from MassGIS 1:25,000 USGS Topographic Maps

April 2001

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42 Institute Road Grafton, MA

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