ENVIRONMENTAL IMPACT STATEMENT - Mahwah ...
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ENVIRONMENTAL IMPACT STATEMENT Prepared for: Russo Acqusitions, LLC 1000 MacArthur Boulevard Block 135.01; Lot 65 Township of Mahwah Bergen County, New Jersey Prepared by: 30 Independence Boulevard Warren, NJ 07059 908-668-8300 _________________________________________ Benjamin S. Crowder, P.E. New Jersey Professional Engineer License No. 52263 May 2021 BENJ #: J 210516
Table of Contents 1 INTRODUCTION ................................................................................................................... 3 2 SITE DESCRIPTION & INVENTORY .................................................................................... 4 2.1 Existing Land Use ........................................................................................................... 4 2.2 Topography .................................................................................................................... 5 2.3 Geology .......................................................................................................................... 5 2.4 Soils ................................................................................................................................ 6 2.5 Groundwater Resources ................................................................................................. 6 2.6 Surface Water Resources .............................................................................................. 7 2.6.1 Surface Waters & Water Quality ............................................................................. 7 2.6.2 Floodplains .............................................................................................................. 7 2.6.3 Freshwater Wetlands .............................................................................................. 8 2.7 Vegetation ...................................................................................................................... 8 2.8 Wildlife Habitat ................................................................................................................ 9 2.9 Threatened & Endangered Species ............................................................................. 11 2.10 Aquatic Habitats ........................................................................................................... 12 2.11 Historical Resources ..................................................................................................... 12 2.12 Air Quality ..................................................................................................................... 12 2.13 Noise Levels ................................................................................................................. 13 3 SITE LOCATION ................................................................................................................. 13 4 PROJECT DESCRIPTION .................................................................................................. 13 4.1 Purpose and Scope ...................................................................................................... 13 4.2 Alteration of the Site ..................................................................................................... 14 4.3 Suitability of Site ........................................................................................................... 15 5 PROJECT IMPACTS & PROTECTIVE MEASURES .......................................................... 16 5.1 Impacts to Topography ................................................................................................. 16 5.2 Soil Erosion and Sediment Control ............................................................................... 17 5.3 Impacts to Geology ....................................................................................................... 18 5.4 Impacts to Surface Waters and Degradation of Water Quality ..................................... 18 5.5 Surface Drainage .......................................................................................................... 19 5.6 Flooding or Floodplain Disruption ................................................................................. 20 5.7 Groundwater Pollution .................................................................................................. 21 5.8 Water Supply & Reduction of Groundwater Capabilities .............................................. 21 5.9 Wastewater Management ............................................................................................. 21 5.10 Vegetation Destruction ................................................................................................. 22 5.11 Disruption of Wildlife Habitat ........................................................................................ 23 5.12 Threatened & Endangered Species ............................................................................. 23 5.13 Solid Waste Disposal .................................................................................................... 23 5.14 Air Quality Degradation ................................................................................................ 23 5.15 Noise Level Increases .................................................................................................. 24 5.16 Destruction or Degradation of Historic Resources ....................................................... 24 5.17 Demography ................................................................................................................. 25 5.18 Impacts to Aesthetics ................................................................................................... 25 6 LIST OF UNAVOIDABLE ADVERSE IMPACTS ................................................................. 26 7 LIST OF ENVIRONMENTAL PROTECTION MEASURES ................................................. 27 8 ANTICIPATED REQURIED LICENSES, PERMITS AND APPROVALS ............................. 28 9 SUMMARY .......................................................................................................................... 29 10 REFERENCES .................................................................................................................... 30 i
APPENDIX A. Site Location Maps B. Site Photographes C. Natural Heritage Response Submission Request D. New Jersey and National Register of Historical Places ii
1 INTRODUCTION According to the Township of Mahwah Ordinance Section 22-5.3, within fifteen days of receipt of an application, the Environmental Commission shall notify the applicant as to whether an Environmental Impact Statement (EIS) is required. As a proactive measure, the applicant is submitting an EIS concurrently with the application. The EIS provides all the information necessary indicated in Section 22-5.3 for a proper evaluation of the effects of the proposed project upon the environment. Section 2 below identifies environmental conditions and critical areas such as topography, geology, soils, water resources, vegetation, wildlife, and air quality. In addition, Section 2 also identifies anthropogenic conditions such as land use, aesthetics, noise, demography, employment, taxes, health, safety, welfare, history and archaeological resources. Anticipated impacts and minimization measures are identified in Section 2. Proposed facility details including water consumption, sewage needs, and solid waste handling are summarized within Section 3 below. Section 4 details all required approvals and their status required for the proposed project. An alternative analysis is located in Section 5. 1.1 Site Location The site is located at the southwest corner of the intersection between MacArthur Boulevard and Ridge Road within the Township of Mahwah, Bergen County, New Jersey. The site is identified as Block 135.01, Lot 65 on the Township of Mahwah Tax Map Sheet 59 and it encompasses approximately 696,001 SF (15.978 Acres). The property is currently occupied by a three-story office building occupied by TD Bank NA. The site is bordered to the north by MacArthur Boulevard and a commercial strip mall with residential areas beyond; to the south by a multi-story office building with additional office uses beyond; to the west by MacArthur Boulevard with residential uses beyond; and to the east by Ridge Road with residential uses beyond. Small grass/vegetated areas and asphalt lots are located adjacent to the building and along the perimeter of the project boundary. 3
1.2 Scope of Work The project includes the demolition of the existing building and surrounding asphalt parking areas. Improvements include the construction of a 208,345 SF Industrial Building, which is inclusive of tenant office space, 32 loading dock bays, 26 trailer storage spaces, along with parking/circulation areas, stormwater management facilities, landscaping, and several modular block retaining walls. Access to the site is proposed via three (3) driveways: one (1) existing full-movement driveway off of Ridge Road; one (1) existing right-in/right-out driveway off of MacArthur Boulevard to be utilized primarily by passenger cars; and one (1) proposed full-movement truck access driveway off of MacArthur Boulevard. The proposed full- movement driveway off of MacArthur will have posted signage restricting left-turns for WB-67 sized trucks. In addition to the proposed on-site improvements, modifications are proposed to the center lane median within MacArthur boulevard to accommodate a left-turn lane into the site. 2 SITE DESCRIPTION & INVENTORY The following section is an inventory of the present land use and environmental conditions at the Site including features such as topography, geology, soils, water resources, vegetation, wildlife, threatened and endangered species, air quality, noise levels and historical, scenic and historical features. This inventory will establish a baseline to which the proposed Project can be analyzed and compared to ascertain potential environmental impacts. 2.1 Existing Land Use The property is known as Lot 65 of Block 135.01 as identified on the Township of Mahwah Tax Map Sheet 59 and it encompasses approximately 696,001 SF (15.978 Ac.). The property is currently occupied by three-story office building occupied by TD Bank NA. 4
2.2 Topography The subject Site on an average is sloping in a southerly direction from a high point of approximately 457-feet above mean sea level (msl) at the northern driveway off of MacArthur Boulevard to a low point in the southwest corner of the Site at approximately 419-feet msl. Based on visual observation, inspection of the Site-specific topographical survey, and NJ Highlands Council Interactive GIS, some areas of severely constrained steep slope areas exist onsite. These areas are primarily located along the western property frontage and in an area of an existing ditch along the eastern property frontage. In the proposed condition, these areas are being maintained and fall outside of any anticipated disturbance. Refer to the USGS map (Appendix B) and the ALTA/NSPS Land Title Survey prepared by Control Point Associates, Inc. dated 03/10/2021, last revised 04/02/2021, for more detailed information. 2.3 Geology New Jersey is divided into four regions, known as physiographic provinces, which are areas with similar rock types, geologic structures and a common geologic history. The subject Site is situated within the Piedmont Physiographic province of New Jersey. The Piedmont Physiographic Province consists of approximately 1,600 acres occupying all or parts of Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex, Morris, Somerset, and Hunterdon counties and extends from the Highlands in northwest New Jersey to the Coastal Plain in central and southern New Jersey. Landforms generally consist of low rolling plains and gently sloping hills divided by a series of higher ridges. Underlying formations predominately include partially folded and faulted sedimentary rocks dating to the Triassic and Jurassic periods (240 – 140 million years ago). Sedimentary classes of rock include siltstone, shale, sandstone, mudstone, and conglomerates. Specifically, according to New Jersey Department of Environmental Protection (NJDEP) NJ GeoWeb Geographic Information Systems (GIS) mapping, the Site is underlain by the Passaic Formation with Quartzite-clast Conglomerate facies. 5
2.4 Soils According to the Natural Resource Conservation Service’s Web Soil Survey (Appendix B), the dominant onsite soils are representative of the Wethersfield gravelly loam series 3-8% slopes (WemB), the Wethersfield gravelly loam series 8-15% (WemC) and the Wethersfield gravelly loam series 15-25%, very stony (WemDb). The Wethersfield gravelly loam series, which dominates the site by is classified as a Coarse-loamy ablation till derived from sandstone and shale. The soil is classified as well-drained and part of Hydrologic Soil Group C. Depth to seasonal high groundwater is listed to occur at depths greater than 6 feet. Depth to bedrock is listed to occur at depths greater than 5 feet. The NJ Highlands Council Interactive GIS indicates that the Site is located within a prime farmland area of statewide importance. 2.5 Groundwater Resources Underlying groundwater sources are known as aquifers. Aquifers are geologic units that are fractured, porous, or permeable enough to hold or allow water to flow through. According to the NJ Highlands Council Interactive GIS, the Site is not located within a prime groundwater recharge area. The site is underlain by the Brunswick aquifer conglomerate (Bac) bedrock aquifer system, which covers a small portion of Bergen County. This system has an aquifer rank of “C”. According to the NJDEP NJ GeoWeb, existing groundwater recharge into the aquifer at the Site is ranked at levels “D” and “L”, with recharge into the underlying aquifer rated at 5 inches per year and 0 inches per year (hydric soils), respectively. Wellhead Protection Areas (WHPAs) are areas delineated to graphically represent an area from which the well draws its water over a specific period of time. The WHPAs are delineated to prevent potential groundwater contamination sources or identify/cleanup existing contamination areas that may impact drinking water wells. No community water supply wells are located onsite or within 500 feet. 6
Based on NJDEP NJ GeoWeb GIS mapping the Site is not located within WHPA for water supply wells. 2.6 Surface Water Resources 2.6.1 Surface Waters & Water Quality The Site is located within the Pompton, Pequannock, Wanaque, Ramapo Watershed Management Area, within the Ramapo River watershed, and more specifically within the Ramapo River (above Fyke Brook) (HUC-14 sub-watershed). The NJ Highlands Council Interactive GIS identifies areas that are of critical importance to the Ramapo Watershed. The Site is designated as having a high critical importance value. The closest watercourse to the Site includes Darlington Brook, which is located approximately 1,500 feet to the southeast of the Site and Masonicus Brook tributary, which is located approximately 2,000 -feet to the east. Under existing conditions, the surface drainage pattern for the Site generally follows existing topography and flows in a southwesterly direction. Onsite pavement and landscape surfaces sheet flow to various onsite landscaped areas and inlets. The headwaters of Darlington Brook originate to the southeast of the site in a wooded area and flows in a southerly direction, before eventually draining into tributaries to the Ramapo River. The headwaters of Masonicus Brook originate to the northeast near the border with New York State and flows in a southerly direction just south of the Site, where it eventually drains to the Mahwah and Ramapo River. Darlington Brook, Masonicus Brook, Mahwah River and Ramapo River have a State Surface Water Quality Classification of freshwater non-trout (FW2-NT). Pursuant to the Flood Hazard Area Control Act Rules at N.J.A.C 7:13, these watercourses will have a 50-foot riparian buffer/stream corridor area. Due to their distance from Site, the Site is not located within a riparian zone or stream corridor area. 2.6.2 Floodplains According to the National Flood Insurance Program’s Flood Insurance Rate Map FEMA Panel #34003C0058H, the Site is not located within a flood zone. A copy of the FEMA map depicting the Site location is included within Appendix B. 7
2.6.3 Freshwater Wetlands A field investigation and review of the parcel was previously conducted by an experienced and certified wetlands specialist to identify potential areas that could be considered regulated features as defined in the New Jersey Freshwater Protection Act Rules (NJAC 7:7A) including freshwater wetlands, State open waters, transition areas, and certain ditches and swales. The presence of wetlands was determined utilizing the three parameter approach as set forth in the Federal Interagency Manual for Identifying and Delineating Jurisdictional Wetlands – 1989, in which those areas containing hydric soils, positive hydrologic indicators, and a prevalence of hydrophytic vegetation are generally classified as wetlands. Based on the previously conducted Site investigation, freshwater wetlands of Ordinary Resource Value were identified in the southwestern corner of the subject Site, in the area of a lawfully existing man-made aboveground stormwater basin. The current Owner secured an approved NJDEP FWW GP1 Permit #0233-20-0006.1 LUP200001, dated 9/9/2020, for basin maintenance inclusive of mowing existing vegetation, providing new topsoil, and laying wet seed mix, in order to restore its functionality. It is anticipated upon completion that the functionality will be improved and return once again to a stormwater management basin. The industrial development proposes to modify & relocate the limits of the existing basin while providing a similar storage volume to handle the off-site runoff that discharges to this basin. No disturbance to wetlands or wetland buffers is anticipated by these proposed modifications. 2.7 Vegetation The majority of the Site is disturbed and characterized by mowed lawn and landscaped areas throughout the parking lot. A portion of the site is scattered with pockets of narrow woods and shrubs along the eastern and southern property lines. The western frontage of the property contains a slightly more densely wooded area. Pursuant to the NJ Highlands Council Interactive GIS, a critical wildlife habitat of deciduous forest is mapped in in the wooded areas along the western and southern property lines, an area which generally overlaps a township dedicated open space easement. No significant natural areas are mapped for the subject Site. 8
Overall, no significant undisturbed vegetative communities are present on or directly adjacent to the Site. Areas of pervious surfaces include maintained lawn and landscaped areas. The following is a listing of some of the existing species found onsite: White Pine (Pinus Strobus), Red Maple (Acer Rubrum), Tree-of-Heaven (Ailanthus Altissima), Black Cherry (Prunus Serotina), Platanus occidentalis (American Sycamore) and Norway Spruce (Picea Abies). 2.8 Wildlife Habitat The Site is mostly disturbed and contains mostly significant areas of native vegetative communities, with some invasive species. The NJ Highlands Council Interactive GIS indicates the presence of a critical wildlife habitat – deciduous forest – that is mapped in the wooded areas along the eastern and southern property lines. The Site may contain limited wildlife habitat within the maintained lawn, landscaped areas and the wooded perimeter strips to the east, west and south. This habitat is anticipated to be restricted to foraging, resting, and limited breeding habitat for avian, reptilian, and small mammalian species that are not sensitive to human disturbance. Potential avian species that may utilize onsite vegetation for foraging and resting habitat may include common birds such as: Scientific Name Common name Cardinalis cardinalis Northern cardinal Carpodacus mexicanus house finch Cathartes aura turkey vulture Corvus brachyrhynchos American crow Cyanocitta cristata blue jay Dumetella carolinensis gray catbird Mimus polyglottos mocking bird Parus atricapillus black capped chickadee Parus bicolor tufted titmouse Passer domesticus house sparrow 9
Poecile carolinensis Carolina chickadee Quiscalus quiscula common grackle Spizella pusilla field sparrow Sturnus vulgaris European starling Toxostoma rufum brown thrasher Troglodytes aedon house wren Turdus migratorius American robin Zenaida macroura mourning dove Buteo lineatus Red shouldered hawk Small mammals may utilize the Site for habitat and may include: Scientific Name Common name Blarina brevicauda shorttail shrew Marmota monax ground hog Mephitis mephitis striped skunk Peromyscus leucopus white footed mouse Peromyscus maniculatus deer mouse Procyon lotor raccoon Scalopus aquaticus Eastern mole Sciurus carolinensis gray squirrel Sylvilagus floridanus Eastern cottontail Tamias striatus Eastern chipmunk 10
Potential reptilian species that may be present include: Scientific Name Common name Diadophis punctatus ringneck snake Terrapene carolina Eastern box turtle Thamnophis sirtalis Eastern garter snake Coluber constrictor black racer Heterodon platirhinos Eastern hognose snake Lampropeltis triangulum milk snake Sceloporus undulatus hyacinthinus Northern fence lizard Crotalus horridus Timber rattle snake Due to the lack of any streams, ponds, or wetlands on or adjacent to the Site, no suitable habitat for amphibian species is anticipated to be present onsite, with the exception for the American toad (Bufo americanus), which is generally an upland species. 2.9 Threatened & Endangered Species According to the NJDEP Landscape Project Maps on NJ GeoWeb GIS mapping for the site (Appendix B), suitable habitat for red-shouldered hawk and timber rattlesnake, both Rank 4 threatened and endangered species, have been noted to occur onsite. According to the NJ Highlands Council Interactive GIS, critical wildlife habitat is documented along the western and southern areas of the site, including areas of the existing man-made basin. These areas are located within an existing township open space easement, which the development proposes to maintain in size, but modify & relocate to more suitable perimeter areas of the site. However, based on discussions with the Highlands Council, the habitat area does not appear suitable given the surrounding land context. A Natural Heritage Program (NHP) request has been submitted. Confirmation is provided under Appendix C, and upon receipt, the letter will be included in the final EIS document. 11
The Site is previously disturbed and located within a developed area. Suitable habitat for threatened and/or endangered species are not anticipated to be present onsite. 2.10 Aquatic Habitats As stated above, no watercourses, waterbodies, or naturally occurring freshwater wetlands will be present onsite following the completion of the previously approved FWW GP1 basin maintenance work discussed in Section 2.6.3. above; therefore, no aquatic habitats or aquatic biota are present. 2.11 Historical Resources The Site is currently occupied by a TD Bank office building. According to the New Jersey and National Register of Historical Places (Appendix D), there are no State or Federally listed or potentially eligible historic resources on or adjacent to the Site. The NJ Highlands Council Interactive GIS does not reference any historical or cultural resources within the immediate vicinity of the Site. The closest named historic resource to the Site includes the Thomas Hennion House (ID#562) located at 770 Darlington Avenue and lies approximately 3,200 feet to southwest of the Site. As with any excavation within largely undisturbed soils, there is the potential for archeological resources, although the Site’s location within a previously disturbed area and not along a watercourse diminishes the likelihood for archeological resources to be present onsite. 2.12 Air Quality Ambient air quality in the vicinity is tracked by the NJDEP. The Site lies within the Northern Metropolitan Region, consisting of Bergen and Passaic Counties. At the time of the preparation of this report, the NJDEP was reporting “good” air quality for this region with low levels of pollutants such as carbon monoxide, nitrogen dioxide, ozone, particulates, and sulfur dioxide. According to the most recent NJDEP Air Quality Index Summary, the State averages “good” air quality (162) days a year, “moderate” air quality (190) days a year, “unhealthy for sensitive groups” (13) days a year, “unhealthy” (0) days a year, and “very unhealthy (0) days a year. 12
Currently, air quality at the Site is anticipated to be primarily impacted by vehicular traffic along MacArthur Boulevard and Ridge Road, as well as limited impacts from existing vehicular access to the site. 2.13 Noise Levels Currently, noise levels at the Site are anticipated to be impacted by vehicular and mechanical operations in conjunction with the existing business onsite. In addition, vehicular traffic along MacArthur Boulevard and Ridge Road also results in noise impacts under existing conditions. 3 SITE LOCATION The Project Site is identified on the Township Tax Maps as Block 135.01; Lot 65 within the Township of Mahwah, Bergen County, New Jersey. The Site consists of approximately 15.978 Acres of land. Pursuant to the Township Zoning Map, the Site is located within the ORP 200 Office Research Park Zone. Additionally, the Site is located within the Highlands Planning Area (PA-14). Under existing conditions, the Site is disturbed and occupied by an office building. Asphalt driveways, parking areas, mowed lawn, landscape and wooded areas are located onsite. The site is bordered to the north by MacArthur Boulevard and a commercial strip mall with residential areas beyond; to the south by a multi-story office building with additional office uses beyond; to the west by MacArthur Boulevard with residential uses beyond; and to the east by Ridge Road with residential uses beyond. Please refer to the Site Location Maps in Appendix A for more information. 4 PROJECT DESCRIPTION 4.1 Purpose and Scope Improvements include the construction of a 208,345 SF Industrial Building, which is inclusive of tenant office space, 32 loading dock bays, 26 trailer storage spaces, along with 13
parking/circulation areas, stormwater management facilities, landscaping, and several modular block retaining walls. Access to the site is proposed via three (3) driveways: one (1) existing full-movement driveway off of Ridge Road; one (1) existing right-in/right-out driveway off of MacArthur Boulevard to be utilized primarily by passenger cars; and one (1) proposed full-movement truck access driveway off of MacArthur Boulevard. Related site improvements include trash/recycling enclosures, utilities, stormwater management, lighting, signage and landscaping. Total Limit of disturbance for the proposed activities is approximately 14-acres. The site improvements result in an overall impervious cover of approximately 9.6-acres. Please refer to the Site Plan Document Set for more detailed information. 4.2 Alteration of the Site Construction of the proposed industrial building will require grading activities necessary to construct the building pad, access drives, parking area pads, and associated improvements. Moderate tree clearing and vegetation removal will be required around the perimeter of the Site to allow for the installation of stormwater management basins, compliant with the NJDEP’s latest GI regulations. The following is the proposed sequence of construction for the Project: Phase 1: Install stone anti-tracking pad and other soil erosion sediment control measures including down slope perimeter hay bales and silt fencing (1 week) Phase 2: Demolish existing office building and surrounding improvements in accordance with the demolition plan and demolition permit secured from Mahwah (1 month) Phase 3: Clear and rough grade the site in accordance with the grading plan for parking facilities, building pad, and surrounding access drives (3 weeks) Phase 4: Install site retaining walls - as necessary, in order to rough grade site (3 weeks) Phase 5: Excavate for above-ground and underground small scale infiltration/detention basins (1 month) Phase 6: Excavate and install underground utilities including storm conveyance piping, 14
green infrastructure, sanitary sewer systems, water services, and dry utility conduits (2 months) Phase 7: Prep building pad and construct building with surrounding site improvements including curbing, sidewalks, and utility connections (6 months) Phase 8: Complete final grading on site (1 week) Phase 9: Install site paving, loading dock concrete, and final landscaping (14 days) 4.3 Suitability of Site The Site is highly suitable for the proposed industrial development as it is a previously disturbed Site centrally located between Interstate Route 287 and New Jersey State Highway Route 17, both major arterial routes within the Township and region. Sufficient public infrastructure is present within the vicinity of the Site including utilities and roadways. Utilization of a previously disturbed Site within a relatively developed area allows for the protection and preservation of undeveloped, wooded, or agricultural lands elsewhere in the Township and region. The proposed Project has been designed to be compatible with the permitted uses in this area of Town. According to NJ Highlands Council Interactive GIS mapping and the NJ GeoWeb GIS mapping of the subject site is not designated as municipal, State, or Federal open space. The proposed Project is also in conformity with the general goals of the State Development and Redevelopment Plan. According to the State Plan Policy Map, the Site is located within the Highlands Planning Area (PA-14). The State Plan’s focus for PA-14 is to preserve open space and protect the state's greatest diversity of natural resources including the precious water resources that supply drinking water to more than half of New Jersey's families, yielding approximately 379 million gallons of water daily. In addition to water resources, the Highlands Region contains exceptional natural resources such as contiguous forest lands, wetlands, pristine watersheds and plant and wildlife species habitats. The region contains many sites of historic significance and provides abundant recreational opportunities. Approximately 110,000 acres of agricultural lands are in active production in the Highlands region. In addition, the NJ Highlands Council Interactive GIS mapping indicates that the site is primarily located within an existing community zone, furtherance that the Township is slating this corridor area for revitalization and redevelopment. A portion of the property along the western and southern property lines is within an environmentally sensitive subzone. Per the Highlands Act, goals of the PA-14 are to have a de minimus impact on water resources that would not cause or contribute to a significant degradation of 15
surface or ground waters, including regenerative capacity of aquifers or other surface/ground water supplies, increase in stormwater generated, increases in impervious surfaces, increases in stormwater pollutant loading, changes in land use and changes in vegetative cover; cause the minimum feasible interference with the natural functioning of natural resources at the site and surrounding area; result in the minimum feasible alteration of the aquatic ecosystem; not jeopardize the continued existence of threatened/endangered species; not be located to endanger human life, property, or impair public health, safety and welfare; and result in the minimum practicable degradation of unique or irreplaceable land types, historical or archaeological areas and existing public scenic attributes at the site and within the surrounding areas. The State Plan encourages development, redevelopment and economic growth in locations that are well situated with respect to present or anticipated public services or facilities and discourages development that would impact or destroy natural features or resources. Additionally, the plan focuses to reduce sprawl, promote development and redevelopment in a manner consistent with sound planning and where infrastructure can be provided with private or little public expense. The proposed Project is consistent with these goals as it will be providing services for surrounding businesses and residents. Its location in a central location is consistent with the goal of integrating development and avoiding inconsistent and fragmented development. 5 PROJECT IMPACTS & PROTECTIVE MEASURES As with any development activity, the proposed Project will have some impact on the natural environment in some fashion. Below is a discussion of the potential Project impacts on the Site, surrounding area, and environment that may occur as a result of the proposed site improvements. A discussion of potential mitigation measures and best management practices (BMPs) that may be employed before, during, and after construction to minimize potential impacts of the proposed Project has also been included. These measures will serve to reduce and/or eliminate potential adverse impacts to the surrounding area, and environment so that the overall environmental impact of the Project may be reduced. 5.1 Impacts to Topography As depicted on the “Grading Plan” of the Site Plan Document Set, impacts to topography for the proposed Project will include significant grading for leveling. Under 16
proposed conditions, the general topography of the Site will remain as sloping in a southerly and southwesterly direction. The proposed access point from Ridge Road and northerly access point from MacArthur Boulevard are maintained at their current locations. A new access point is proposed from MacArthur Boulevard from the western side of the property. The proposed high point on the Site will be at approximately 457-feet above mean sea level (msl) at the existing northern driveway off of MacArthur Boulevard. The low point of the Site will occur at the southwestern corner of the Site at approximately 419-feet above msl. Based on visual observation, inspection of the Site-specific topographical survey, and NJ Highlands Council Interactive GIS, some areas of severely constrained steep slope areas exist onsite. These areas are primarily located along the western property frontage and in an area of an existing ditch along the eastern property frontage. In the proposed condition, these areas are being maintained and fall outside of any anticipated disturbance. 5.2 Soil Erosion and Sediment Control Soil erosion and sedimentation can occur both during the construction and operational phases of the Project. During the construction phase, stormwater runoff and wind may result in the movement of soils and sediments from unsterilized materials. This impact can be controlled during construction through the implementation of an approved Soil Erosion and Sediment Control Plan by the Bergen Soil Conservation District as well as by careful adherence to the sequence of construction described in Section 4.2 above. As depicted on the “Soil Erosion & Sediment Control Plan” of the Site Plan Document Set, the following structural and non-structural soil erosion BMPs will be implemented during construction: Placement of silt fencing around the limit of disturbance Temporary soil stockpiles surrounded with silt fencing or haybales Inlet filter covers over all existing and proposed inlets & trench drains Stabilized anti-tracking construction entrance along MacArthur Boulevard Temporary vegetative cover and/or stabilization standards Soil management factors that prevent erosion hazards and minimize the creation of airborne particulate and dust will be monitored by the onsite inspector for the proposed construction. 17
Clean suitable fill material will be imported to the site to fill the southern portion of the site in order to allow for installation of several underground stormwater basins, as well as to match existing grades in the eastern and western portions of the sites along the existing roadways. Following completion of construction, soil erosion and sediment control will be able to continue to be controlled through measures such as the implementation and maintenance of the stormwater management system, inlet filter grates, permanent vegetative cover, stabilized stormwater outfall structures, regular property maintenance, and curbing. 5.3 Impacts to Geology Excavations will be required for the placement of the underground utility lines, underground stormwater management system, and construction of the building foundation. According to a geotechnical site investigation performed by SESI Consulting Engineers, on various dates and detailed in their report entitled “Geotechnical Investigation Report”, dated May 12, 2021, surficial geology generally consists of silty sand to sandy silt with pebbles, cobbles and boulders. Rock coring was not performed in SESI’s investigation; however, split spoon refusal was encountered on very dense natural soil, boulders, or bedrock. Please refer to the detailed SESI report for further subsurface information and detailed soil boring logs. Based upon subsurface investigations, adverse impacts to the geology of the Site and surrounding area are not expected to occur as a result of the proposed Project. 5.4 Impacts to Surface Waters and Degradation of Water Quality No surface waters or naturally occurring freshwater wetlands will be located on or directly adjacent to the Site following the completion of the FWW GP1 Basin Maintenance work discussed in Section 2.6.3 above; therefore no direct disturbances to surface water resources are proposed including stream corridors, steep banks, springs, wetlands, or streamside vegetation. During construction, the proposed soil erosion and sediment control measures discussed in Section 5.2 above will be implemented in an effort to prevent any soils or sediments from reaching downstream areas, including Darlington Brook, which could increase suspended solids and turbidity. Specifically, these measures include: placement of 18
silt fencing around the limit of disturbance, temporary soil stockpiles surrounded with haybales, temporary vegetative cover standards, inlet filter covers over all existing and proposed stormwater inlets, and an anti-tracking stabilized construction entrance along MacArthur Boulevard. As discussed in further detail within Section 5.5 below, the Project has been designed to meet applicable federal, State, and local water quality requirements, which are specifically outlined within the Stormwater Management Rules at N.J.A.C. 7:8 and the Township Ordinance. Water quality measures implemented into the proposed design include several NJDEP BMP sub-surface and aboveground infiltration basins. No septic disposal fields are proposed. Therefore, potential sources for surface water quality degradation is anticipated to be resultant of non-point sources such as proposed access drives, loading areas and parking areas. Mitigation to reduce non-point pollutants include pre-treatment of stormwater runoff via several Filterra HC units (certified by NJDEP as GI for 80% TSS removal). The proposed Project is not anticipated to result in any significant adverse impacts to surface waters or water quality. 5.5 Surface Drainage In New Jersey, projects resulting in over 1 acre of land disturbance or 0.25 acres of new impervious surfaces are required to comply with the NJDEP’s Stormwater Management Rules at N.J.A.C. 7:8. As required by the regulations, municipal entities are responsible to ensure projects meet the required or applicable standards for stormwater runoff including quantity control, quality control, and groundwater recharge. Land disturbance exceeds 1 acre and new impervious surfaces exceed 0.25-acres; therefore, stormwater quantity control, quality control and groundwater recharge are required. As evident from inspection of the “Drainage Plan” of the Site Plan Document Set, the naturally occurring drainage patterns have been maintained to prevent alterations to hydrology in the area. To meet the required NJDEP & Township stormwater criteria, including the most recent green infrastructure requirements, seven (7) stormwater management basins are 19
proposed throughout the industrial development. Stormwater runoff from the onsite building, pavement and landscaped areas will be collected through a series of inlets/drains and conveyed through storm pipe. One (1) aboveground detention basin (AG Basin #4) is proposed as a modification and shifted relocation to the existing aboveground detention basin in the western portion of the site. This basin will continue to receive stormwater runoff from offsite areas within the Glassmere Road ROW. Two (2) underground basins (UG Basin #1 & #3) will receive clean stormwater runoff from the building roof area, before discharging to a common downstream point where two (2) additional aboveground basins (AG Basin #1 & #2), which will receive stormwater runoff from the eastern pavement portions of the site, will also discharge. On the western portion of the property, an aboveground basin (AG Basin #3) will receive stormwater runoff from the loading dock areas, which will be pre-treated using a Cascade manufactured treatment device. Additional loading dock areas will first drain to a grass swale along the western-most curbline via curb-cuts, before being pre-treated in a Filterra HC units (certified by NJDEP as GI for 80% TSS removal), then discharged to an underground basin (UG Basin #2). The basins are designed to store and release stormwater at a controlled rate to meet NJDEP water quantity reductions for the 2, 10 and 100-year storms to 50%, 75% and 80% of the pre-development peak flows. Stormwater from the basin will be released a controlled rate to the MacArthur Boulevard drainage system, and the adjacent Lot 61.01 drainage system, by two (2) proposed precast concrete outlet control structures. The onsite stormwater management facilities will be designed to achieve the following in accordance with NJDEP and Township stormwater management regulations: Decrease in peak rate of onsite storm runoff storm runoff being discharged from the property. This will be achieved by collecting onsite runoff and routing stormwater to several onsite stormwater basins. Stormwater Pollutant TSS Removal Please refer to the Stormwater Management Report prepared by our office for additional and more detailed information. 5.6 Flooding or Floodplain Disruption Impacts to flooding or floodplain disruption can occur by filling of lands located within a floodplain, alteration of stream flow characteristics, or lack of an adequate stormwater management system. Based on the respective FEMA Flood Panel Map the Site is not 20
located within a floodplain. Adverse impacts to the floodplain or disruption of the floodplain will not result from the proposed Site improvements. The proposed stormwater management system will incorporate measures to control the volume and rate of stormwater runoff leaving the Site in compliance with State and local requirements. Impacts to adjacent properties are not anticipated to result. 5.7 Groundwater Pollution Primary sources for groundwater pollution include infiltration of contaminated stormwater, malfunctioning septic systems, and uncontrolled discharges of industrial manufacturing wastes. It is anticipated that the proposed development will utilize the Township of Mahwah to collect, convey, and treat all domestic sewage generated at the Site; therefore, no septic systems are proposed. The proposed stormwater management design will include methods to safely collect and treat stormwater runoff from high pollutant loading areas such as the loading dock area of the Site. Runoff from this area will be collected via curb cuts in a grass swale, before being pre-treated by Filterra HC units (certified by NJDEP as GI for 80% TSS removal), then entering the underground detention basin. Runoff from this high pollutant loading area will be infiltrated to an NJDEP approved media, prior to recharging groundwater. 5.8 Water Supply & Reduction of Groundwater Capabilities Potable water will be supplied to the Site by the Township of Mahwah via proposed connections to existing water mains located along MacArthur Boulevard and Ridge Road. Estimated water demand for the proposed Project is 11,927 gallons per day (GPD), which will be used primarily for typical domestic uses such as restrooms and wash stations. No potable wells are proposed for the Project; therefore, there will be no additional demands or withdrawals on groundwater at the Site. 5.9 Wastewater Management Domestic sewage and wastewater generated from the proposed development will be collected, conveyed, and treated by the Township of Mahwah Department of Public Works. Wastewater leaving the Site will be conveyed to the sewer main located on-site, which 21
connects to the downstream sewer main within Ridge Road. Estimated wastewater flow for the proposed development is 11,432 gallons per day (GPD). No underground septic systems are proposed. This method of sewage disposal is not anticipated to result in groundwater pollution. Based on preliminary assessments, the local sewage treatment plant has adequate capacity for the proposed development. Types of wastewater include sanitary wastes and typical domestic water wastes. No potentially hazardous quantities of materials will be discharged into the public system. The proposed wastewater flows will not require any amendments to the applicable wastewater management plan. 5.10 Vegetation Destruction Generally, the most visible impact associated with development is the removal of vegetation. As discussed above, the majority of the Site is previously disturbed and only contains areas of vegetation along the western and southern property lines. Clearing of portions of the onsite vegetation is required for the proposed construction, however significant supplemental landscaping is proposed in areas adjacent to those disturbed. No disturbance to significant vegetative communities is proposed. Landscaping is proposed to be implemented to provide additional vegetation, supplement existing vegetation proposed to remain, screening, and for aesthetic purposes. Tree protection fencing will surround all areas of vegetation to remain undisturbed to prevent inadvertent damage or destruction. Proposed plantings will be concentrated along the perimeter of the Site, along the perimeter of the proposed buildings, and within landscaped islands. All remaining areas will be seeded and serve as lawn areas. Proposed plantings include species of shade trees, evergreen trees, evergreen shrubs, deciduous shrubs, ground covers, and ornamental grasses that are common or well adapted to the region. Significant species shall include Red Maple (Acer rubrum), Redmond American Linden (Tilia Americana ‘Redmond’), Red Osier Dogwood (Cornus sericea), Inkberry Holly (Ilex glabra), Arrowwood Viburnum (Viburnum Dentatum), and Switchgrass (Panicum virgatum). Please refer to the “Landscape Plan” of the Site Plan Document Set for the exact location, species, quantity, and size of plantings proposed. 22
5.11 Disruption of Wildlife Habitat As discussed above, limited wildlife habitat is present onsite. During construction, wildlife species utilizing the Site for habitat will likely be displaced into adjacent areas, including the wooded area to the west along MacArthur Boulevard. Upon completion of construction, although the quantity of overall habitat will be reduced, some of these species that are not sensitive to human disturbance may return to the Site. Avian and small mammalian species, such as rabbits and squirrels, are anticipated to utilize the remaining pervious areas of the site for resting and foraging. Overall, minor impacts to wildlife or wildlife habitat will occur as a result of the proposed site improvements. 5.12 Threatened & Endangered Species As discussed in section 2.8 and 2.9 above, the Site is identified as a habitat with characteristics for species of concern. These areas are generally located within an existing township open space easement, which the development proposes to maintain in size, but modify and relocation to more suitable perimeter areas of the site. 5.13 Solid Waste Disposal During construction, construction wastes and materials will be collected, transported, and disposed of offsite by a private contractor. All wastes will be exported offsite to appropriate collection facilities based on the type and quantity of materials. Burning or dumping of onsite debris will not be permitted. Upon completion of construction, operational wastes will be stored onsite in dumpsters located within a trash enclosure and collected by a private hauler for proper disposal and/or recycling. Solid waste disposal will be performed in accordance with all applicable local, county, and State standards and regulations. Solid wastes from the proposed building will include paper, cardboard, packaging materials, glass, and plastics. 5.14 Air Quality Degradation During construction, all possible measures to reduce air pollution from construction equipment emissions and control of dust will be taken. 23
During operation, it is anticipated that the proposed building will have not have any major adverse impacts to air quality on or offsite. Impacts to air quality at the Site associated with the development are anticipated to result from vehicular traffic from truck traffic, employees and visitors. Impacts to air quality are anticipated to be negligible. 5.15 Noise Level Increases The State of New Jersey regulates noise under the New Jersey Noise Control Act, N.J.A.C. 7:29. This Act contains both protocols for assessing noise impacts as well as the allowable noise levels. Allowable noise levels differ for residential properties and industrial/commercial zoned areas. The regulations are as follows: Residential: 7:00 AM – 10:00 PM 65 DBA at the nearest property line 10:00 PM – 7:00 AM 50 DBA at the nearest property line Industrial/Commercial: 65 DBA at the nearest property lines at all times. During the construction phase, the noise levels will be slightly elevated as a result of construction activities. These disturbances will be limited to the site construction time period and normal working hours. After completion of the Project, the noise level will be reduced to normal industrial/warehouse levels. Noise generating operations that will occur onsite include vehicular traffic, pedestrian activities, mechanical equipment (air conditioners, etc.), and truck delivery activities. Noise levels are anticipated to be at levels in compliance with State regulations. The noise levels of the proposed development are anticipated to slightly increase from the existing condition. 5.16 Destruction or Degradation of Historic Resources As discussed in Section 2.11 above, The Site and immediately surrounding area is not known to contain documented historic features or resources. Destruction or degradation of historic features is not anticipated to occur as a result of the proposed site improvements. 24
As the Site is previously disturbed, and no watercourses are immediately adjacent, there is a low probability for the existence of any archeological resources that would be potentially disturbed during construction. Should any archeological resources or remains be encountered during construction, all construction activities will immediately cease, the proper authorities will be notified, and the matter will be handled in accordance will all applicable laws, regulations, and standard operating procedures. 5.17 Demography Population increase will not occur as a result of the proposed development as it will not be providing additional residences. No people will be displaced as a result of the Project. The property owner runs the existing office building, which is anticipated to close as the owner is selling the parcel to Russo Acquisitions, LLC. There is no projected need for any increase in municipal services such as schools, police, or fire. In compliance with local zoning and the Master Plan, the proposed Project is consistent with surrounding land uses and will not result in undesirable land use patterns. Overall, the proposed Project includes the utilization of a previously disturbed Site along a municipal roadway within a designated office research park zone. In addition, the development of the Site will provide the Township with additional tax revenue and retables. In summary, the community is anticipated to benefit from the resultant tax revenue increase and new job availability. The proposed Project is anticipated to provide economic sustenance for community and regional growth. 5.18 Impacts to Aesthetics The redevelopment of the previously disturbed Site is not anticipated to have significant adverse impacts on aesthetics. Although permanent buildings and impervious surfaces will be constructed, many will appreciate the services the proposed Project will provide. Vegetation to remain and proposed additional landscaping will serve as screening and buffer areas and preserved open space has been implemented to mitigate impacts to existing aesthetics. 25
6 LIST OF UNAVOIDABLE ADVERSE IMPACTS Criteria Short Term Impacts Long Term Impacts Reversible Impacts Irreversible Impacts Topography Grading Grading None Alteration of topography Excavations for underground Geology None anticipated None anticipated None anticipated utilities, and foundations. Potential soil erosion impact Land clearing, potential soil during construction – Soils erosion – preventive measures Grading, fill None preventive measures proposed. proposed. Potential soil erosion impact Potential soil erosion impact None anticipated – stormwater None anticipated – stormwater Surface during construction – during construction - mitigation volume, rate & water quality volume, rate & water quality Water preventive measures proposed controls provided. controls provided. proposed. Wetlands None anticipated None anticipated None anticipated None anticipated None anticipated – stormwater None anticipated – stormwater Groundwater None anticipated None anticipated recharge & water quality recharge & water quality provided. provided. Clearing – mitigation Vegetation Clearing Clearing – mitigation proposed Clearing – mitigation proposed proposed Temporary disturbance to limited Wildlife None None None habitat during construction Minor related to dust generation Construction related impacts Slight increased emissions from Slight increased emissions from Air Quality & increased emissions during will dissipate post existing conditions existing conditions construction construction Increased noise levels during Slight increase from existing Increased noise levels during Slight increase from existing Noise Levels construction conditions construction conditions Historic None anticipated None anticipated None anticipated None anticipated Resources Change in use. Landscaping Change in use. Landscaping Change in use. Landscaping Aesthetics Decrease during construction provided in enhance project. provided in enhance project. provided in enhance project. Demography None anticipated None anticipated None anticipated None anticipated 26
7 LIST OF ENVIRONMENTAL PROTECTION MEASURES The following is a listing of environmental protection and mitigation measures within the site design to be employed during site construction and operation. Minimizing impervious surfaces onsite Preservation of some quantities of existing trees/vegetation Placement of tree protection fencing around vegetation to remain Placement of silt fencing around the limit of disturbance Temporary soil stockpile with silt fencing Existing & proposed inlet filter & trench drain covers Stabilized anti-tracking construction entrance Proposed landscaping including native species Low maintenance landscaping and native species shall be planted as feasible Lawn areas and potential use of fertilizers and pesticides has been minimized. Vegetated planting & screening buffers Stormwater management infiltration basins meeting all recent NJDEP Green Infrastructure initiatives Stormwater Pollutant Removal of 80% TSS Overall, the proposed Project is not anticipated to require the irreversible and irretrievable commitment of any natural resources by utilizing a previously disturbed Site along a major roadway. Specifically, the utilization of a Site lacking any significant vegetative communities or wildlife habitat prevents the destruction of these resources elsewhere in the community. As listed above, various environmental protection measures and considerations have been implemented into the design of this Project. The proposed scope and layout of the Project has been reached through proper engineering and planning to be in compliance with local zoning and in consideration of neighboring properties and safety along the adjacent roadways. It is not anticipated that any significant alternatives to the Project design exist. The no-build alternative would leave a highly valuable property in a prime location, undeveloped. As the proposed Project is not anticipated to result in any significant adverse impacts to the environment or natural resources, the no-build alternative does not appear to be reasonable. 27
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