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Home My WebLink About2025.5.12 100-112 Washington Ave NOI final__________________________________________________________________________________________ Green Seal Environmental LLC 114 State Road, Building B, Sagamore Beach, MA 02562 | Tel: (508) 888-6034 | Fax: (508) 888-1506 | www.gseenv.com __________________________________________________________________________________________ Notice of Intent 100/112 Washington Avenue Barnstable, Massachusetts May 2025 Prepared For: Archwright, LLC 22 Depot Street Duxbury, MA 02332 Green Seal Environmental LLC 114 State Road, Bldg. B, Sagamore Beach, MA 02562 T: 508.888.6034 F: 508.888.1506 www.gseenv.com ENGINEERING | ENVIRONMENTAL | SURVEY MassDOT Certified May 12, 2025 F.P. Tom Lee, Chair Barnstable Conservation Commission 367 Main Street Hyannis, MA 02601 Re: Notice of Intent Site Work for Re-Development of 100-112 Washington Avenue 100-112 Washington Avenue, Barnstable, MA 02601 Dear Chair and Commission Members, On behalf of our client, Archwright, LLC, we are pleased to submit the enclosed Notice of Intent for proposed construction activities at the above-referenced site. The subject property currently includes two (2) structures, a main house and a carriage house. The Applicant intends to renovate the two structures. The work includes selective demolitions of some building elements, lifting the structures and installing poured concrete foundations. Ancillary work such as rebuilding entrance and egress access way and a small kitchen addition is proposed. The proposed activities are within 100-ft of a vegetated wetland and as is subject to the Wetland Protection Act 310 CMR 10.00 and the Barnstable Wetland Protection By-law §273. Additionally, the southern portion of the property falls within 100-ft of a coastal bank. In accordance with the applicable filing requirements, we have enclosed the following materials for your review: Notice of Intent (WPA Form 3) Locus Map Project Narrative (with figures and attachments) Abutters List, Abutter Notification Form, Affidavit of Service, and Certificates of Mailing Fee Transmittal Form and associated filing fee checks Waiver request for work in the 50-ft wetland buffer Should you have any questions or require additional information, please feel free to contact me at (508) 888-6034 or via email at s.clark@gseenv.com. Thank you for your time and consideration. Sincerely, GREEN SEAL ENVIRONMENTAL, LLC Stuart Clark, PE Vice President of Engineering Services 100/112 Washington Avenue, Barnstable, MA Notice of Intent 05132025-Archwright-287-16 Green Seal Environmental LLC 1 TABLE OF CONTENTS 1.0 Overview ........................................................................................................................................... 2 2.0 Existing Conditions ............................................................................................................................ 2 2.1 Resource Areas ............................................................................................................................. 2 3.0 Proposed Conditions ......................................................................................................................... 3 4.0 Stormwater ....................................................................................................................................... 3 5.0 Conclusion .........................................................................................................................................4 Figures Figure 1 Site Location Map - USGS Figure 2 Site Location Map – Aerial Imagery Figure 3 MassMapper NHESP Map Figure 4 MassMapper DEP Water Resources Map Figure 5 FEMA Firmette Appendices Appendix A WPA Form 3 – Notice of Intent Appendix B Abutter Notification Information Appendix C Fee Transmittal and Checks Appendix D Waiver Request Appendix E NOI Check List & Directions 100/112 Washington Avenue, Barnstable, MA Notice of Intent 05132025-Archwright-287-16 Green Seal Environmental LLC 2 Project Narrative 1.0 Overview This project narrative is submitted in support of the Notice of Intent application for site work at 100-112 Washington Avenue, Barnstable, Massachusetts (the “Property”). The Property is owned by Zig Harbor LLC, and the Applicant is Archwright LLC. The site is being developed by the current owner and no activities were proposed in jurisdictional areas. The site currently contains two (2) completed buildings. As part of the re-development, grading activity will occur within the 100-foot buffer zone to Bordering Vegetated Wetlands (BVW). A completed Notice of Intent (Form WPA-3) is included in Appendix A. Additional supporting materials, including abutter notification documentation and fee payment information, are provided in Appendix 2. 2.0 Existing Conditions 100-112 Washington Avenue is located in the southern part of Barnstable in the village of Hyannis Port. The two lots contain approximately 0.78 acres of land (100 Washington Avenue is 0.36 acres and 112 Washington Avenue is 0.42 acres). The subject property is developed with a residential compound consisting of a 8-bedroom Main House and a Carriage House with three garage bays and two bedrooms. The Applicant intends to re-develop the property’s structures and grounds. The owner intends to temporarily raise the main house, rebuild the foundation and install a kitchen addition. The project will raise the Mian House by about 1.2 feet to move the wooden sills away from the ground. Additionally, the foundation on the carriage house requires replacement. Additional cosmetic work will occur on both structures including siding, windows, doors, roof, etc. The entire carriage house structure is in the 0-50’ wetland buffer and a portion of the Main house falls in the 50-100’ buffer. Neither structure is in the 100’ coastal bank buffer. The property is served by municipal water and has an onsite sanitary system(s). Access is provided by a gravel/stone driveway. The carriage house currently has a cesspool near the wetland line which will be abandoned as part of this redevelopment. 2.1 Resource Areas A bordering vegetated wetland is located on the property’s northern border. The wetland was flagged by Tunison Environmental Services in October 2004 . The 50-foot local buffer zone and 100-foot wetland buffer zone and available area for mitigation are shown on the site plans. Additionally, a 500-year flood zone is shown on GIS mapping toward the rear of the property. A portion of the property is located within Zone X of the FEMA Flood Hazard Zones, but the proposed work and structures are both outside of this area. According to the current Priority and Estimated Habitat GIS layers created by Natural Heritage & Endangered Species Program (NHESP), the Property is not located within any Priority or Estimated 100/112 Washington Avenue, Barnstable, MA Notice of Intent 05132025-Archwright-287-16 Green Seal Environmental LLC 3 Habitats or Endangered or Rare Species. Additionally, there are no certified vernal pools near the proposed work. The proposed work is not located in any of the following resource areas  NHESP Priority or Estimated Habitat (Figure 3)  Area of Critical Environmental Concern (ACEC),  Mapped Wellhead Protection Areas (Zone I),  Interim Wellhead Protection Area (IWPA),  Approved Protection Area Zone II (Figure 4),  Outstanding Resource Water.  FEMA Flood Hazard Zones. (Figure 5) 3.0 Proposed Conditions The Applicant is proposing to completely renovate both structures. Main House Work: • Remove the sunroom, outdoor shower, rear deck, carport and a portion of the front porch, • Lift the house, excavate and install ne poured concrete foundation, • Reset house, • Reconstruct per architectural plans. Carriage House Work: • Remove external stairway, • Lift structure and remove and re-install new foundation, • Add second means of egress per building code, • Add new walkway to main house, • Reconstruct external stairs This work will increase the “hardscape” (as defined in § 704-2) in the 50-100’ buffer by 717 sf. Applying the 3:1 mitigation performance standard from § 704-3D, we get a mitigation area of 2,151 sf. However, the Carriage House work is going to create an additional 253 sf in 0-50’ buffer which requires a 4:1 mitigation ratio of 844 sf. Therefore, the total mitigation area required for the project is 2,995 sf. The applicant is proposing 3,020 sf of mitigation. A perimeter erosion control barrier (ECB) consisting of a straw wattle with a silt fence backer will be established at the edge of the wetlands and will represent the limit of work. 4.0 Stormwater The proposed work is not subject to Stormwater Policy. Currently runoff from the property sheds both north, toward the bordering vegetated wetlands, and south towards Washington Ave with the main house as the high point. Roof run off will be infiltrated into dry wells and the existing drainage patterns shall remain unchanged. 100/112 Washington Avenue, Barnstable, MA Notice of Intent 05132025-Archwright-287-16 Green Seal Environmental LLC 4 4.0 Mitigation The applicant will convert 3,020 sf of existing lawn area to a planted resource buffer zone. The selected plants are native species taken form the Cape Cod Commission’s “Herbaceous Plant For Conservation Buffers” and UMass Extension Landscape , Nursery and Urban Forestry Program’s “ Tree and Shrubs for Coastal Environments and Freshwater Resource Buffer Zones” 5.0 Conclusion The Applicant is seeking to renovate the historical structures on the property. They are aware of the importance of wetland resources and will endeavor to protect them. Mitigating and installing wetland buffer will have a net benefit on the wetland resource area. ENVIRONMENTAL | ENGINEERING | SURVEY FIGURES FIGURE 1 – USGS Map FIGURE 2 - Aerial Image FIGURE 3 - NHESP Map FIGURE 4 – Water Resources Map FIGURE 5 - FEMA Firmette SITE LOCUS MAP ENGINEER: SCALE:SHEET: CHECKED BY: DATE: CAD TECH: 1" = 1,500'FIGURE 1 DRAWING TITLE:PREPARED FOR: LOCUS: SDC SDC 05/12/2025 REVISIONS www.gseenv.com Tel: (508) 888-6034 114 State Road, Building B Sagamore Beach, MA 02562 Green Seal Environmental, LLC Fax: (508) 888-1506 NO./ DATE NLD COMMENT 100-112 WASHINGTON AVENUE BARNSTABLE, MA 02647 ARCHWRIGHT, LLC 22 DEPOT STREET DUXBURY, MA 02332 NOTE: USGS TOPOGRAPHIC MAP WAS PROVIDED BY THE OFFICE OF GEOGRAPHIC AND ENVIRONMENTAL INFORMATION (MassGIS), COMMONWEALTH OF MASSACHUSETTS EXECUTIVE OFFICE OF ENERGY AND ENVIRONMENTAL AFFAIRS CURRENT TO MARCH 2017. SITE 0'1500'3000'4500' AERIAL MAP ENGINEER: SCALE:SHEET: CHECKED BY: DATE: CAD TECH: FIGURE 2 DRAWING TITLE:PREPARED FOR: LOCUS: SDC SDC 05/12/2025 REVISIONS www.gseenv.com Tel: (508) 888-6034 114 State Road, Building B Sagamore Beach, MA 02562 Green Seal Environmental, LLC Fax: (508) 888-1506 NO./ DATE NLD COMMENT SITE 0'1500'3000'4500' 1" = 1,500'100-112 WASHINGTON AVENUE BARNSTABLE, MA 02601 ARCHWRIGHT, LLC 22 DEPOT STREET DUXBURY, MA 02332