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Home My Public Portal About2022 04 26 Public Meeting Packet MEMORANDUM To: Brewster Conservation Commission Attn: Noelle Aguiar, Conservation Administrator From: Rich Claytor (HW); Geoff Glover (HW) Date: April 21, 2022 Re: Geotechnical Investigation in Quivett Marsh cc: Brewster Natural Resources This memorandum describes the proposed geotechnical investigation required in Quivett Marsh as part of the initial planning and design stages for the Wing Island Boardwalk Improvements project. The borings have been scheduled for April 29, 2022 assuming the Conservation Commission approves the proposed activity. This activity is proposed under an exemption to the Wetlands Protection Act under Section 10.02.2, (a) and (b) as a minor activity which will not alter an area subject to protection and which is temporary in nature, have negligible impacts, and is necessary for planning and design purposes. Boring and Sampling Efforts The Horsley Witten Group (HW) with our subconsultant Pare Corporation, and their drilling contractor, Technical Drilling Services, Inc, will be conducting necessary geotechnical investigations that are required for the early design stages of the boardwalk connection to Wing Island. The investigation will include four geologic borings within the salt marsh (three along the existing pathway connection to Wing Island and one adjacent to the existing opening to the marsh at Drummer Boy Park) plus one additional upland geologic boring log in the location of the existing path from the Old King’s Highway (Route 6A). See the attached Boring Location Plan. The salt marsh borings and upland boring will be performed using two different drilling rigs to reflect the sensitivity of conducting these investigations in the salt marsh (see equipment description below). The Boring Location Plan shows two alternative locations for the upland boring (B-5) to reflect the limited width of the access path from Route 6 to the existing marsh crossing to Wing Island. The plan also shows the ultimate initially-estimated limit of work for the boardwalk and Drummer Boy Park improvements, but this should be viewed as only an initial estimate for planning and design purposes. The boring logs are necessary for the design of the boardwalk anchors, as they are sized based on soil type and relative density, groundwater elevation, and bearing capacity. The two anchor types most appropriate for this type of application are helical piles and diamond pier supports. Noelle Aguiar April 21, 2022 Page 2 of 2 These two anchor types have initially been chosen as they have proven to have the least amount of disturbance to the environmentally sensitive Quivett Marsh. Geologic Soil Boring Equipment The mechanical equipment being proposed for the four borings in the salt marsh has been specifically chosen to ensure the least amount of disturbance to the existing marsh. The Geoprobe 420M has a 45-inch by 23-inch base with a total weight of 450 pounds (see the attached specification sheet for more details). Tracking of the Geoprobe 420M will be able to stay on the existing wooden marsh crossing for 3 of 4 borings, and relatively close to the existing opening to the salt marsh at Drummer Boy Park. If required, temporary “swamp mats” can be placed in areas where the investigation will take place. The Geoprobe will send a 2” – 4” diameter tube into the marsh subgrade to a depth of approximately 20’ – 25’. There will be no material taken out of the marsh during the investigation. Once the Geoprobe has brought up the sample, the geotechnical engineer will log the sample and it will then be placed back into the bore hole. Any disturbance that occurs during the investigation, will be restored with hand equipment. A conventional geotechnical Geoprobe (such as the 3126GT, see attached specification sheet for more details) is proposed to conduct boring B-5 as close to the marsh as is reasonable. This equipment can extend much deeper and record soil bearing (via blow counts) and collect soil samples which will help provide geological-based data to facilitate an approximation of the soil properties below the marsh. This rig is approximately 7 feet wide and should be able get to the location of Boring B-5 along the existing Wing Island path without impacts to adjacent trees and shrubs; but an alternative location (B-5A) is provided if the driller feels differently at the time of the drilling. Quivett Marsh Access Points Access points to the marsh will primarily be from the existing designated pathway that runs behind the Museum of Natural History. Four of the five boring logs can be acquired from the existing path. Boring location B-4 will be accessed from Drummer Boy Park. There is a clearing at the northern end of Drummer Boy Park that has been used in the past for shoreline/marsh access. The equipment will need to track approximately 50 – 100’ from that access point across the marsh to conduct the boring and gather the information required. 102030252 5 1555 5 7202227 25 20 15 15105 302 5 PINE-24"PINE-4X12"PINE-20"UP 553VZ16"18"4X18"2X16"UP 100/120"DEMUP 54924"12"16"12"2X12"2X14"12"2X16"14"22"2X16"16"20"2X18"18"18"24"14"16"24"2X12"2X20"3X20"2X20"2X24"3X20"18"30"ESTIMATEDWORK LIMITS100' OFFAPPROXIMATEPROPERTY LINEWING ISLANDMARSH CROSSING100.0'APPROXIMATE LOCATIONOF MARSH OPENINGB-1B-2B-3B-4B-5AB-5Revisions Appr.Rev.Date By Description 1 2 3 4 5 6 7 APRIL 2022 GSG JLV RACBORING LAYOUT PLAN WING ISLAND BOARDWALK IMPROVEMENTS 869 OLD KINGS HIGHWAY BREWSTER, MASSACHUSETTS Survey Provided By:Sheet Number:Project Number:Registration:Prepared For:Plan Set: Plan Title:Sheet :Horsley Witten Group, Inc. 90 Route 6A Sandwich, MA 02563 Phone: (508) 833-6600 Fax: (508) 833-3150 Dated: APRIL 2022 Town of Brewster *********, Street Brewster, MA Phone: (508) ***-**** Fax: ----1122028oflast modified: 04/15/22 printed: 04/21/22 by jp \\hw-file2\HW-Server\Projects\2022\22028 Wing Island Boardwalk\Drawings\Misc\22028 ST_gsg.dwg (in feet)GRAPHIC SCALE08040801603201 INCH = 80 FEET1C -Checked By:Designed By:Date:Drawn By: Sustainable Environmental Solutions www.horsleywitten.com 90 Route 6A Sandwich, MA 02563 508-833-6600 voice 508-833-3150 fax Horsley Witten Group, Inc.DRAFTNOT FORCONSTRUCTION LEGENDAPPROXIMATE PROPERTY LINE10' CONTOURSPROPOSED BOARDWALKPROPOSED BORING LOCATIONAPPROXIMATE LIMIT OF WORK April 13, 2022 C19525.00 Town of Brewster Via Hand Delivery Conservation Commission Noelle Aguiar, Agent 1657 Main St Brewster, MA 02631 Re: RESTORATION PLAN FILING Bruce J MacGregor, Trustee Sunset Nominee Trust 0 Swift Lane Brewster, MA Parcel ID: 69-92-0 DEP File No: SE 9-1890 Dear Ms. Aguiar and Members of the Brewster Conservation Commission, On behalf of our client, Bruce J MacGregor, we are submitting thirteen (13) copies of a Restoration Plan for the above referenced project, in accordance with the OOC SE 9-1890, Special Condition A36. The following items are enclosed: • Crawford Land Management Restoration Plan, dated 3/24/2022 Please let me know if you have any further questions or concerns. Sincerely, Jen Crawford, PLA, ASLA Crawford Land Management, President Enclosures: as stated cc: Sunset Nominee Trust J.M. O’Reilly & Assoc. FOOTPATH 20 151020251510(3) BAYBERRYTOP OF RIDGETOP OF RIDGEBOTTOM OF SCARPTOP OF SCARPSEASONAL SNOW FENCEPARTIALLY BURIEDSTONE REVETMENTEXISTING SPLITRAIL FENCESEASONALSNOW FENCESEASONALSNOW FENCECOASTAL BEACHSEASONALSNOW FENCEEXISTING NATIVEDUNE VEGETATIONEXISTING NATIVEDUNE VEGETATION(3) BAYBERRY(3) BEACHPLUM(3) BEACHPLUM(5) BEACHPLUM(3) BEACHPLUM(5) BAYBERRY(5) BEACHPLUM(5) BAYBERRY(3) BAYBERRYSTORAGEAREA(5) BEACHPLUM(3) BAYBERRY FOOT P A T H 10 5 0 10 30NPLANT SCHEDULESCIENTIFIC NAMECOMMON NAMEQTY.SIZENATIVE SHRUBSMorella pensylvanicaBayberry22#3-#5Prunus maritimaBeach plum24#3-#5AREA TO BE PLANTED WITH BEACH GRASS@ 12" O.C.; 2 CULMS PER HOLESCALE:DATE:All rights reserved. The drawings, designs, andideas embodied therein are property of CLMand shall not be copied, reproduced, ordisclosed in connection with any work otherthan the project for which they have beenprepared, in whole or part, without priorwritten authorization of CLM.NO:DATE:REVISION:BY:88 Route 6A, Suite 2BSandwich, MA 02563www.crawfordlm.com | 508.477.1346BREWSTER, MA 02631 RESTORATION PLAN1 of 11" = 10'03/24/22MACGREGOR 0 SWIFT LANE EXISTING BEACH GRASS; INSTALLED ATTIME OF INVASIVE SPECIES REMOVALAREA OF DUNE MIGRATION AND SAND FENCEINSTALLATION; NO INVASIVE REMOVAL OCCURRED HEREJ.M. O'REILLY & ASSOCIATES, INC.1573 MAIN STREETP.O. BOX 1773BREWSTER, MA 02631SURVEYOR/ENGINEER:EXISTING VEGETATION April 19, 2022 C19525.00 Conservation Commission By Email Attn: Noelle Aguiar, Agent 1657 Main Street Brewster, MA Re: Minor Change Request Letter Daniel Gaquin 42 Warrens Road Brewster, MA Map 38, Parcel 75 DEP File No: SE 9-1886 OOC Doc # 1,429,350 Dear Ms. Aguiar and Commission Members, On behalf of our client, Daniel Gaquin, we are submitting a Minor Change Request filing package for your review and consideration. We are enclosing ten (10) copies of the following items: • Minor Change Request Letter, dated 4/19/2022 • CLM & Jenick Studio Revised Plan entitled Areas of Change, dated 4/19/2022 • CLM & Jenick Studio Revised Restoration Plan, dated 4/13/2022 If you would, please review at your convenience and let us know if you have any questions, or require additional information. Thank you. Sincerely, Jennifer Crawford Crawford Land Management Enclosures: as stated cc: Daniel Gaquin April 19, 2022 C19525.00 Conservation Commission By Email Attn: Noelle Aguiar, Agent 1657 Main Street Brewster, MA Re: Minor Change Request Letter Daniel Gaquin 42 Warrens Road Brewster, MA Map 38, Parcel 75 DEP File No: SE 9-1886 OOC Doc # 1,429,350 Dear Ms. Aguiar and Commission Members, On behalf of our client, Daniel Gaquin, we would like to request a Minor Change Request to the previously approved project, as described in the Order of Conditions SE 9-1886, issued on 5/11/2021. The proposed change includes adding stepping stones near the existing rinse station (similar to the stepping stones in the front of the house) as this will be a fairly well traveled stretch of lawn. The proposed stepping stones would be an additional 100 square feet of stone. Even with this additional stone, we’re still well under the previously existing total square footage of structure and hardscape. With this request, we are including an updated plan showing the proposed hardscape and structure square footages on the upper left-hand side of the plan - indicated by a revision cloud and revision #2 symbols. Those updated square footage numbers now include the proposed additional 100 sf of stone. We are also including the previously approved plan for ease of reference, and comparison purposes. If you would, please review at your convenience and let us know if you have any questions, or require additional information. Thank you. Sincerely, Jennifer Crawford Crawford Land Management Enclosures: as stated cc: Daniel Gaquin A96.68'''''''''''''''''''''''''''''''''''''''''96.07' 75.00'50'± Asphalt Driveway Edge o f Pavement RE BAR FND 10.0' Utility Pole #163-12 Gas Line Electric Meter & UG Service Cov. Entry Step Cov. EntryStep Step OS Existing 4 Bedroom Dwelling, TOF EL=65.0± Existing Garage TOS EL=68.2± Deck 16" Oak 16" Oak 14" Oak 56 54 52 50 484644424038 36 34 Edge o f C l e a r i n g R10" Oak R10" Oak 4 3 2 50' Buffer Zone 100' Buffer Zone Upper Mill Pond (A Great Pond - EL=26.4±) Existing Septic System Neighborhood Association Beach R10" Oak Flagpole 96.07'1.1%6.6% 8.7% 68.5 67.9 67.9 64.3 62.4 60.9 60.8 68.3 69.2 68.4 68.2 67.0 TOW 67.0 64.0 67.7 61.0 68.3 60.7 60.2 55.9 55.8 LANDSCAPE PLANTING PLAN | NOVEMBER 26, 2019 STEVENS RESIDENCE | 203 LELAND ROAD, BREWSTER, MA BLUEFLAX DESIGN LLC | HARWICH, MA 774-408-7718 | www.blueflaxdesign.comN Overseed sloped area with native grasses, plant understory with native shrubs (1,445 sf) Expand vegetative buffer along top of slope Replace 1,595 sf of lawn with native naturalized planting Proposed vista management along top of slope Remove 1 previously-cut oak and 2 sapling pitch pine (not located on plan) Stone walkway Expand existing to 4' wide Stepping stones set into groundcover Gravel path Replace existing patio with porous pave Regrade and replace existing timber steps Existing timbers, severely eroding Replace with steps Remove spruce tree (not located on plan) Install in-ground steps where existing path is eroding Gravel path Remove trees for solar panels Existing Planting Bed Existing Planting Bed New Planting Bed Stepping stones set into groundcover Minor regrading to create level walkway Proposed dry wells Proposed leach pit Proposed dry well Proposed dry well French drain Google Earth image of the project area at 203 Leland Road in Brewster, MA. The project area is shaded in yellow.100’ BUFFER50’ BUFFERPROPERTY LINE UPPER MILL POND #203 LELAND ROADASSOCIATION BEACH Planting area to be restored with native naturalized vegetation Planting area to be restored with native naturalized vegetation Tree to be removed PLAN NOTES • Site plan provided by J.M. O’Reilly Associates, Inc . • This plan proposes removing 11 pitch pines, 2 white pines and 1 oak trees within 100’ buffer to the BVW to allow for the installation and use of solar panels. These trees were identified and marked for removal by a third party solar energy consultant. • Minor vista corridor management activities are proposed in the area marked on the plan. One (1) previous-cut and damaged oak and 2 pitch pines (3” and 5”, DBH) are proposed to be removed and replaced with native shrubs. • Greenbrier (Smilax rotundifolia), an aggressive native, is also present in patches along the top of slope. This Plan proposes not to eliminate, but to manage greenbrier to reduce competition with other native species. All vegetation debris will be removed from the site and brought to an off-site disposal area. • Regenerative pruning is proposed on select remaining trees that have either been previously-cut or have an excess of dead limbs to improve health of the tree. • 1,595 square feet of lawn along the Top of Slope and within the 0-100’buffer will be restored to native, naturalized vegetation. Lawn will be removed, the area will be seeded with a native mix of cool and warm season grasses and wildflowers, and planted with native shrubs. • An additional 1,445 square feet within existing naturalized areas will be over-seeded with native grasses and planted with native shrubs where an understory shrub canopy layer is lacking. These naturalized areas a steeply sloping and significant runoff from upland portions of the property and deep shade have made it difficult for understory vegetation to thrive. Planting above the slope (described above) will help to slow runoff down before it reaches the slope and new planting will help stabilize soil and infiltrate runoff as it reaches the slope. • To help slow stormwater runoff, the area between the driveway and deck on the south side of the house will be regraded to create a pervious walkway with steps between landings. The walkway and steps will total 490 square feet within the 50-100’ buffer. Regrading will help slow stormwater runoff as it travels down slope and reduce the amount of existing erosion where the is currently heavy foot traffic around the house. • Regrading for stormwater management is also proposed on the north side of the house outside of the 100’ buffer. Though not in Conservation jurisdiction, regrading to slow and infiltrate stormwater runoff before it reaches the pond will offer another significant improvement to the resource area. • The property will be planted with a total of 112 native shrubs and 34 container-sized perennial grasses (see Plant Schedule below for details). • Temporary irrigation will be required for the first two to three growing seasons while plants establish. Once plants are established irrigation will be removed. GRASS & WILDFLOWER SEED MIX Agrostis perennans / Autumn Bentgrass Echinacea purpurea / Purple Coneflower Festuca ovina / Sheep Fescue Festuca rubra / Red Fescue Juncus tenuis / Path Rush Rudbeckia hirta / Black-eyed Susan Schizchyrium scoparium / Little Bluestem Grass PLANT SCHEDULE SHRUBS BOTANICAL / COMMON NAME CONT QTY REMARKS Comptonia peregrina / Sweet Fern 1 gal 25 Diervilla lonicera / Dwarf Bush Honeysuckle 3 gal 11 Ilex glabra / Inkberry Holly 3 gal 17 Myrica pensylvanica / Northern Bayberry 3 gal 16 Rhus aromatica / Fragrant Sumac 3 gal 26 Vaccinium angustifolium / Lowbush Blueberry 2 gal 24 Viburnum dentatum / Viburnum 3 gal 9 GRASSES BOTANICAL / COMMON NAME CONT QTY REMARKS Panicum virgatum / Switch Grass 2 gal 15 PLANT SCHEDULE PROJECT AREA Botanical Name Common Name Quant.Section Ag Agastache foeniculum Anise Hyssop 32 C Au Arctostaphylos uva-ursi Bearberry 150 A, B Ah Amsonia hubrichtii Blue Star 32 B Cl Carex laxiculmis Creeping Sedge 150 A, B Cv Claytonia virginica Spring Beauty 200 A Er Erica spp.Heath 50 B He Heliopsis helianthoides False Sunflower 32 C Hy Hypoxis hirsuta Yellowstar Grass 32 A Mf Monarda fistulosa Wild Bergamot 32 C Sc Schizachyrium scoparium Little Bluestem Grass 20 C Va Vaccinium angustifolium Lowbush Blueberry 20 B Vp Viola pedatifida Prairie Violet 100 A PLANT LIST: NOTES: -Existing Conditions is based on plan filed with the Brewster Conservation Department in 2019 by BlueFlax Design, LLC. The planting plan from that submission is overlayed here as noted. - Additional native plug plantings are proposed in the three sections (A-C) shaded in yellow, blue, and red. See plant list above. A) Herbaceous Groundcover. B) Heathland Groundcover. C) Mid-Height Herbaceous. - Plants that were proposed in the 2019 planting plan that have not survived will be replaced in the Summer of 2022. - Stormwater mitigation measures are proposed outside of the 100’ wetland buffer zone. This includes two rain gardens (as noted) in addition to slight re-grading to create a swale to channel runoff, 6” below grade at center. All grading will be done by hand. There will be no machinery on site for any proposed work. Excess material from re-grading will remain outside of the 100’ wetland buffer, if re-used on site. These features will be planted with native plants that sequester stormwater. - Any part of this work will continue to abide by all conditions outlined in the Order of Conditions issued in 2020. LOCUS RAIN GARDEN DWELLING DECK 100’ WETLAND BUFFER 100’ WETLAND BUFFER 50’ FILTER STRIPBB C A C CHANGE REQUEST FOR ORDER OF CONDITIONS FOR: Stevens Residence 203 Leland Road Brewster, MA 02631 MARCH 15, 2022 2019 PLANTING PLAN OVERLAYED