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Forest River Pool Replacement Plans RECEIVED I� JAN 3 0 2020 'llon CIT Y Y OF SALEM ASSOCIATES INC . BOARD OF HEALTH January 29, 2020 PRINCIPALS Ms. Purvi Patel Theodore Barten,PE MEPA Office Margaret B Briggs 100 Cambridge St.,Suite 900 Dale T Raczynski,PE Boston, MA 02114 Cindy Schlessinger Purvi.Patel@state.ma.us Lester B Smith,Jr Robert D O'Neal,CCM,INCE VIA EMAIL Michael D Howard,PWS Douglas J Kelleher Subject: EEA No. 16147—Forest River Pool Replacement,Salem, MA AJ Jablonowski,PE Dear Ms. Patel: Stephen H Slocomb,PE David E Hewett,LEED AP Pursuant to the MEPA Office's request for additional information about the Forest River Dwight R Dunk,LPD Pool Replacement Project, we are please to provide the following details regarding the David C Klinch,PWS,PMP Project and the alternatives evaluated in the Environmental Notification Form ("ENF'). Maria B Hartnett The MEPA Office specifically requested "expanded details on the alternatives analysis provided in the Project's ENF to quantify and compare and contrast the environmental ASSOCIATES impacts associated with each alternative (i.e. No-Build, Expanded Shoreline Alternative, and Preferred Alternative). The impact comparison can be provided in tabular format." Richard M Lampeter,INCE As was described in the Project's ENF, the Proponent evaluated three alternatives: 1) a Geoff Starsiak, LEED AP BD+C No-build Alternative, i.e., leaving the Site in its current condition, 2) an Expanded Marc Bergeron,PWS,CWS Shoreline Alternative that would increase the size and tidal depth of the shoreline Alyssa Jacobs,PWS restoration area beyond that of the Project and otherwise construct the proposed pool Holly Carlson Johnston and bathhouse renovations; and, 3) the Proposed Alternative which consists of the Brian Lever Project. Table 1, below, provides comparisons of the alternatives. Table 1 Alternatives Impacts Comparison 3 Mill&Main Place,Suite 250 No Build Expanded Proposed Maynard,MA 01754 Shoreline www.epsilonassociates.com Building Program 978 897 7100 FAX 978 897 0099 Gross Square Footage 4,268 6,118 6,118 Impervious Area 64,033 sf 58,100 sf 58,100 sf SILON ASSOCIATES INC, ENGINEERS®ENVIRONMENTAL CONSULTANTS Forest River Pool Replacement(EEA#16147) 2 City of Salem January 29, 2020 No Build Expanded Proposed Shoreline Stormwater Recharge 0 sf 4,750 sf FT 750 sf Impacts Coastal Bank Alteration 0 If 40 If 40 If Land Under the Ocean 0 sf 12,800 sf 8,500 sf Rocky Intertidal 0 sf 8,000 sf 4,500 sf Salt Marsh 0 sf 850 sf 50 sf Land Containing Shellfish 0 sf 5,900 sf 1,600 sf Land Subject to Coastal 0 sf 17,530 sf 16,100 sf Storm Flowage Dredge Volume N/A 1,800 cy 440 cy Dredge Area N/A 10,500 sf 4,000 sf (160'x66'x1.5') (160'X24'X1.5') Trips Per Day 120* 176 176 Parking Spaces 0 16 16 Water Use 13,860 gpd* 4,780 gpd 4,780 gpd Wastewater 15,246 gpd* 5,258 gpd 5,258 gpd * Based on facility operations prior to 2018. The No Build Alternative would retain the existing Site conditions, which consist of a secured and inaccessible public pool facility that continues to deteriorate. Although the No-Build Alternative would not necessarily result in direct environmental and community impacts, it would preclude improvements in Site resiliency and environmental conditions at the Project Site. The No-Build Alternative would require EPSILON ! ENGINEERS ®ENV[RONNIENTAL CONSULTANTS Forest River Pool Replacement(EEA#16147) 3 City of Salem January 29, 2020 additional expenditure of City funds in the short-term to continue to secure the Site, and would likely result in the eventual removal of the pool and bathhouse as the failing structures represent a public health and safety risk. The No-Build Alternative also fails to provide significant community benefits with regard to the reactivation of the Site and improved water quality through the proposed stormwater management features. The No-Build Alternative would avoid the temporary and minimal construction-period impacts of the other two alternatives evaluated in the ENF but, as noted above, it is likely that Site degradation (e.g. erosion, seawall failure, etc.) from sea level rise and coastal storms would result in permanent and avoidable environmental impacts. It is also assumed that interim repairs to the Site to protect public health and safety, such as stabilization of the deteriorating seawall, for example,would have attendant impacts to wetland resource areas. The No-Build Alternative is not considered a viable option based on its inability to benefit residents of the City of Salem and surrounding communities and its inconsistency with the City's Open Space and Recreation Plan Update. The Expanded Shoreline Alternative was conceived as a means of constructing a more dynamic inter-tidal area with a more pronounced elevation change from the toe of the reconstructed coastal bank to the top of bank. More extensive removal of fill material from around Mean Low Water to the toe of the coastal bank was evaluated as a way to more closely replicate the condition shown in historic shoreline mapping. This alternative included the construction of a reduced area of salt marsh, and the construction of a coastal beach feature, as shown on Figure 1 and Figure 2, here attached. The Expanded Shoreline Alternative would require the removal of approximately 1,800 cubic yards ("cy") of material from a 10,500 square foot ("sf') area of the Project Site, depicted as the "Limit of Dredge Area" on Figure 2 and Figure 4. As shown in Table 1, below, the Expanded Shoreline Alternative would have additional, temporary impacts to wetland resource areas. The Expanded Shoreline Alternative would otherwise construct the pool and bathhouse as described in the Proposed Alternative. The City and members of the Project's design team met with staff from the Massachusetts Department of Environmental Protection ("MassDEP") Northeast Regional Office and the Massachusetts Office of Coastal Zone Management ("CZM") to solicit feedback on the Expanded Shoreline Alternative. At that meeting, MassDEP and CZM staff felt the Expanded Shoreline Alternative may not function as designed, particularly considering projected sea level rise and coastal storm scenarios. As a result, the Project team has determined the Expanded Shoreline Alternative is not the preferred alternative. ASSOCIATESEPSILON ENGINEERS 8 ENVIRONMENTAL CONSULTANTS Forest River Pool Replacement(EEA#16147) 4 City of Salem January 29, 2020 The Proposed Alternative has been carefully designed to minimize environmental impacts, provide numerous public and environmental benefits, and incorporate design feedback from MassDEP and CZM on the shoreline restoration component. The Proposed Alternative reactivates the pool and bathhouse facility and provides for an expanded range of public programming by constructing a community meeting room that will operate during the shoulder seasons when the pool is otherwise not open to the public. As with the Expanded Shoreline Alternative, the Proposed Alternative will improve site resiliency by replacing an aged seawall, elevating portions of the site approximately 3.0 feet above the FEMA 100-year flood level and by constructing a stormwater management system that utilizes Best Management Practices to meet current stormwater quality standards. Additionally, the Project will construct highly efficient buildings that incorporate sustainable green building and design features aimed at mitigating environmental impacts of the Project. The Proponent thanks MEPA for their thoughtful review of the Project. Should you have any further questions please feel welcome to contact me at your convenience at: erexford@epsilonassociates.com or 978-897-6241. Sincerely, Erik Rexford, Senior Planner �4t<✓.� r`CSC V EPSILON ASSOCIATES, INC. Cc Circulation List(via Fed Ex) Edward Reiner, US EPA Eric Carlson, MassDCR EPSILON ! ENGINEERS ®ENVIRONNIENTAL CONSULTANTS