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2021.04.08 Staff Report Conservation Commission Staff Report 1 April 8, 2021 To: Conservation Commission From: Sarah LaValley RE: Staff Report, April 8, 2021 Commission Meeting 5:30 PM – Request for Determination of Applicability to determine if building demolition and related site work is subject to the Wetlands Protection Act or Northampton Wetlands Ordinance. Northampton Office of Planning & Sustainability, 278 Burts Pit Rd, Map ID 30D-16 Application Overview: The application proposes demolition of a dilapidated house and garage and excavation of a concrete pad, all within buffer zone to BVW. A subsequent permit application will be submitted for redevelopment of the site at a later time. Wetland boundaries shown on the plan are those that were confirmed by the Commission in 2009 as part of a Notice of Intent filed for a project that did not occur. Staff visited the site in the fall, and confirmed that wetland boundaries are still accurate, and have not shifted toward the work area since the delineation was completed. Consistency with the Wetlands Protection Act and Northampton Wetlands Ordinance, Staff Recommendation. Staff assisted application, no specific recommendation. If the Commission agrees that the work will not impact any adjacent resource areas, issue a negative determination by checking box 3, to indicate that the work is within buffer zone to wetlands, adding standard conditions and any other conditions the Commission deems necessary to protect nearby wetlands. Note that wetland boundaries are not confirmed. The Commission should discuss plans for revegetating/stabilizing the site, and any vegetation removal that may be needed to facilitate the removal. 5:50 PM: Notice of Intent pursuant to Northampton Wetlands Ordinance and Request for Amendment to DEP File 246-735 for residential driveway construction within buffer zone to wetland resource areas. Timothy Seney, 1087 Westhampton Rd, Map ID 41-70 Application Overview: The Commission issued an Order under the state Wetlands Protection Act for this projecy in May 2020, but a denial under the Wetlands Ordinance, finding that the application as presented did not meet the buffer zone requirements of the Ordinance, and that stormwater riprap drainage swales with settling pools would alter the buffer zone, would create significant adverse impact on the resource area, and that the work would harm the resource area values protected by the law through erosion and siltation. Plans submitted at that time did not show a house location, and a DPW stormwater permit had not been applied for. This required since the total project will disturb more than one acre, but the project, as a single-family home, is not required to meet DEP stormwater standards as part of the wetlands process. A permit for the revised project has now been issued. Revisions to the plans retain the same driveway footprint, but now include an identified house location, Deletion of stone lined stormwater basins/settling pools, addition of one rain garden and three small infiltration pools in the upper portion of the site, addition of an infiltration basin near the site entrance, addition of a wet swale west of the driveway for the first 350 ft providing water quality Conservation Commission Staff Report 2 April 8, 2021 treatment, addition of a level spreader is proposed west of station 4+00 on the driveway to convey flows from uphill drainage areas into the wetland via sheet flow are now shown. Consistency with the Wetlands Protection Act and Northampton Wetlands Ordinance: The review letter from Stockman Associates asserts that the work is a limited project. Limited Project driveway crossing under 310 CMR 10.53(3)(e), contending that “no reasonable alternative means of access from a public way to uplands of the same owner is available.” ‘Limited Projects’ can be permitted by the Conservation Commission notwithstanding the performance standards and regulations for inland wetlands. The limited project provisions provide Commissions with discretion to consider certain types of projects that do not meet all applicable performance standards, and allow for exceptions to the CMR standards. However, a hardship was created in this instance when adjacent upland property previously in common ownership was sold, and an easement over upland was not retained. This lot is a portion of a larger lot that was divided into four parcels, and three other building lots served by a common driveway were created from the original parcel. This parcel was not considered to be a developable lot by the Planning Board at that time. The Northampton Wetlands Ordinance allows for reduction of some performance standards, such as work in Protected Zones. No work in Protected Zones is proposed, and a reduction in WPA standards in not necessary, but the Commission must find that all applicable local performance standards are met prior to issuing a local Order. Section 337-10 (E) of the Ordinance provides additional standards for “Work within upland areas adjacent to wetlands.” A growing body of research evidence suggests that even "no disturbance" areas reaching 100 feet from wetlands may be insufficient to protect many important wetland resource characteristics and values. Problems with nutrient runoff, erosion, siltation, loss of groundwater recharge, poor water quality, vegetation change and harm to wildlife habitat are greatly exacerbated by activities within 100 feet of wetlands. These impacts may happen either immediately, or over time, as a consequence of construction, or as a consequence of daily operation. Thus, in general, work and activity within 100 feet of wetlands should be avoided and discouraged and reasonable alternatives pursued. Certain areas 50 feet to 100 feet from wetlands may be suitable for temporary, limited or permanent disturbance as appropriate when the applicant can demonstrate to the Commission's satisfaction that the proposed work, activity or use will not affect wetland values singularly or cumulatively and, by means of a written and plan view assessment, that reasonable alternatives to the proposed work or activity do not exist. The Commission may allow the alteration of up to 20% of the area within the fifty foot to one‐hundred‐foot buffer zone on a lot, or up to 2,000 square feet on a lot within a cluster subdivision. This is a total, cumulative allowance for all projects on a lot developed since the City first adopted a wetlands protection ordinance (August 17, 1989). The proposed work must have no significant adverse impact on the resource area, and the applicant must provide evidence deemed sufficient by the Commission that the area being disturbed will not harm the resource area values protected by the law. The work meets the threshold limit. The Commission should consider the sections highlighted. Staff Recommendation: If the Commission agrees that the revised project meets all Ordinance performance standards, include this as a finding and issue an Order. Include standard conditions, all conditions from the DPW stormwataer permit, and additional conditions: Conservation Commission Staff Report 3 April 8, 2021 The expiration date of the Order issued under the WPA will not be extended, note this consistency in the conditions for clarity. Except for the footprint of the driveway access, all areas shown on referenced plansheets as being within wetland resource areas and buffer zones shall remain in a natural and undisturbed state. Alteration within these areas, including but not limited to, removal of vegetation, construction of buildings, maintenance of driveway that extends beyond the driveway footprint, and creation of lawn, is prohibited without review and approval pursuant to the Wetlands Protection Act and Northampton Wetlands Ordinance. The applicant and contractor shall develop a specific plan to prevent alteration to wetlands areas during construction. This plan shall include specific provisions, and must be included in the sequencing plan. Request for Certificate of Compliance, Michael Cialek, 1175 Westhampton Road, DEP File 246-571 The Commission issued an Order in 2005 for construction of an addition, 30 feet from BVW. The Order included only standard conditions, and a requirement for an as-built plan. Staff visited the site and found no issues. Request for Partial Certificate of Compliance, Syncarpha Solar, Park Hill Rd, DEP File 246-723 Staff visited the site and verified that work was completed as permitted, and the site is stabilized. A complete certificate cannot be issued at this time due the requirement in the Order that “A request for certificate of compliance shall include an assessment of all tree plantings following three growing seasons. Any plantings not successful at that time shall be replaced.” Bittersweet is growing very quickly around the newly planted trees, and the applicant/property owner should take quick action to eliminate this invasive before it damages the saplings. Issue a partial certificate as requested, noting permanent conditions prohibiting herbicide/pesticide, and limiting annual mowing to between September 15 and December 31. Request to Use Montview Conservation Area for Tag Sale The Conservation Restriction for Montview, held by Meadow City Conservation Coalition, from which the request is being made, specifies that group activities may be allowed following approval of the conservation commission to ensure that any proposed activities are consistent with the conservation values of the area. The Commission should discuss plans for dates, parking, limit of the activity on the site, and cleanup of the area. Request to Use Conservation Properties for Activities Where a Fee Is Charged Adventure East, a local for-profit, is requesting to utilize the Saw Mill Hills for a hike where a fee would be charged. Commission approval is required pursuant to the land use regulations. If the Commission approves the request, either as a single event or as a group, in addition to any conditions required by the Commission after consideration of participants, the fee being charged, and the location, staff also requests that: 1. Any flier, announcement, email or press must provide credit that the events are on permanently protected open space owned by the City of Northampton 2. We must be notified before each such tour and ensure that there are no conflicts (work parties etc.) with staff reserving the right to deny specific events based on work parties, environmental conditions (e.g., wet conditions) or other potential conflicts. 3. Clear anytime that the fee is mentioned that there is no charge for access to Northampton Open Spaces, and the fee is only for programming (this protects the City under the recreation liability statute) 4. Pre-scouting and parking carefully planned to make sure that all parking is all legal and will not interfere with neighbors or public roads