Basis of Design Report - Department of State

Basis of Design Report REDI Regional Dredging Project – Lake Ontario (NYSOGS Project #46224) Oak Orchard Harbor Dredging Project

Basis of Design Report REDI Regional Dredging Project – Lake Ontario (NYSOGS Project #46224) Oak Orchard Harbor Dredging Project March 15, 2021


Prepared for: Prepared by:

New York State Office of General Services 35th Floor Coming Tower Empire State Plaza Albany, NY 12242

Weeks Marine, Inc. | Anchor QEA Engineering, PLLC | WFB Engineering, P.C. For further information, please contact Nathan Holliday, PE [email protected] (315) 883-8919

\\wcl-ny1\Helios\D_Drive\Projects\NYSOGS\REDI_Regional_Dredging_(E02054-01.01)\Deliverables\BODR\03_OakOrchardHarbor\03_OakOrchard_BODR_20210315.docx

Revision Date Status Comments Prepared Reviewed Approved


CONTENTS 1. Introduction ...................................................................................................................... 5

1.1 Site Location.............................................................................................................. 5

1.2 Project Objectives and Description ............................................................................. 5

1.3 Sources of Information ............................................................................................... 6

1.4 Project Datums .......................................................................................................... 6

1.5 Regional Dredging Management Plan Update ............................................................ 6

1.6 Sediment Budget ....................................................................................................... 7

1.7 Dredging Activity........................................................................................................ 8

2. Basis of Design: Dredge Site .......................................................................................... 10

2.1 Dredge Template & Quantities ................................................................................. 11

2.2 Cultural and Environmental Resources..................................................................... 12

2.3 Pre-Design Investigations ........................................................................................ 13

2.2.1 Topographic/Bathymetric Surveys ..................................................................... 13

2.2.2 Sediment Investigations .................................................................................... 13

3. Basis of Design: Placement Area .................................................................................... 15

3.1 Template & Capacity ............................................................................................... 15

3.2 Cultural and Environmental Resources..................................................................... 16

3.3 Pre-Design Investigations ........................................................................................ 17

3.2.1 Topographic/Bathymetric Surveys ..................................................................... 17

3.2.2 Sediment Investigations .................................................................................... 18

3.2.3 Environmental Resource Investigations ............................................................. 18

4. Construction ................................................................................................................... 19

4.1 Means, Methods, and Durations............................................................................... 19

4.2 Environmental Protection Measures ......................................................................... 20

5. References..................................................................................................................... 22

APPENDIX A – Final Permit Drawings

APPENIDX B – Cultural and Environmental Resources Databases

APPENDIX C – Bathymetric Survey Report

APPENDIX D – Sediment Sampling Memorandum


FIGURES Figure 1.1: Site Location Map..................................................................................................6

Figure 1.2: Sediment Budget (USACE, 2021a) ...........................................................................7

Figure 1.3: USACE Federal Navigation Channel at Oak Orchard Harbor (USACE, 2021b)................9

Figure 2.1: Proposed Dredge Limit (plan view) ........................................................................ 10

Figure 2.2: Proposed Dredge Limit (cross-section 01/05).......................................................... 12

Figure 2.3: Dredge Area Bathymetric Survey (USACE, July 2020) .............................................. 13

Figure 3.1: Proposed Placement Area Extents (plan view) ........................................................ 15

Figure 3.2: Proposed Placement Area (cross-section 05/07) ..................................................... 16

Figure 3.3: Placement Area Bathymetric Survey (Prudent Engineering, January 2021)................. 17

Figure 4.1: Typical Equipment Setup - Mechanical Means and Methods ..................................... 21

Figure 4.2: Typical Equipment Setup - Hydraulic Means and Methods ....................................... 21

TABLES Table 1.1: Dredging Activity at Oak Orchard Harbor...................................................................8


1. Introduction New York State launched the Regional Economic & Development Initiative (REDI) as an “approach to economic growth with a ‘ground-up’ strategy that focuses on cooperation and investing in regional assets to generate opportunity.” One component of REDI is the Regional Dredging Project (RDP), which supplements ongoing federal, state, and local dredging efforts. The REDI Regional Dredging Project identified 20 harbors and channels along the southern and eastern shorelines of Lake Ontario and the southern shoreline of the St. Lawrence River that required maintenance dredging to support local economies and maintain navigation for recreational and commercial vessels. The federal navigation channel at Oak Orchard Harbor is one of the 20 identified dredge sites.

The New York State Office of General Services (NYSOGS) issued a design-build contract to Weeks Marine, Inc. (WMI) to assist with the REDI Dredging Project (NYSOGS Project #46224). The contract includes pre-design investigations, design, permitting, and construction related tasks at 17 of the 20 identified dredge sites. The design-build team assembled to assist in accomplishing these tasks included WMI, WFB Engineering, P.C. (Baird), and Anchor QEA Engineering, PLLC (Anchor QEA).

This basis of design report is intended to document the key information, assumptions, directives, guidance, and pre-design investigations considered in designing the proposed dredge area and placement area shown in the f inal permit drawings (Appendix A) for Oak Orchard Harbor. Site specific hydrodynamic modeling, coastal processes analyses and modeling, wave climate characterization, structural analysis and conditions assessments of adjacent marine and coastal structures, flood risk studies, climate change studies, water quality plans, dredge material management plans, sediment and disposal plans, dredge and disposal plans, alternative analyses, and assessments of project performance, maintenance, optimization, and benefits are not included herein.

1.1 Site Location

Oak Orchard Harbor is REDI RDP Site 3, located in NYSDEC Region 8 on the southern shore of Lake Ontario in Town of Carlton, Orleans County, New York. The proposed dredge area is located within a portion the federal navigation channel, which is an inlet and navigation channel that provides access from Oak Orchard Creek to Lake Ontario. The federal navigation channel consists of three segments previously dredged by the U.S. Army Corps of Engineers (USACE): the Lake Approach Channel (East and West), which is the northern portion of the federal navigation channel located north of the east and west jetties and extending north into Lake Ontario, the Entrance Channel which extends south (upstream) from the Lake Approach Channel between the jetties into Oak Orchard Creek, and the Harbor Basin Channel located upstream of the Entrance Channel. Dredging within the southern portion of East and West Lake Approach Channels and the northern portion of the Entrance Channel is the focus of the project.

1.2 Project Objectives and Description

Project Description: Dredge within a portion of the federal navigation channel at Oak Orchard Harbor and place dredged material within the Lake Ontario littoral drift system.

Project Objectives: • Maintain navigation within the channel • Supplement the USACE ongoing operations & maintenance efforts with a one-time dredge event • Retain sediment within the littoral drift system to support the natural longshore sediment transport • Support the local economy, commercial functions, and recreational activities that depend on the

channel • Minimize environmental impacts while conducting dredging activities


Figure 1.1: Site Location Map [Figure excerpt extracted from Final Permit Drawings included in Appendix A]

1.3 Sources of Information

The information compiled in this report is based on discussions with, guidance received from, and/or documents, reports, data, permits, and publicly available information provided by the following agencies:

• New York State Office of General Services (NYSOGS) • Ramboll (NYSOGS representative) • New York State Department of Environmental Conservation (NYSDEC) • New York State Office of Parks, Recreation, and Historic Preservation (NYSOPRHP) • New York State Department of State (NYSDOS) • United States Army Corps of Engineers Buffalo District (USACE) • National Oceanic & Atmospheric Administration (NOAA) • United States Fish & Wildlife Service (USFWS) • United States National Park Services (USNPS)

1.4 Project Datums

Horizontal Datum: United States survey feet relative to New York State Plane Coordinate System (SPCS) based on the Transverse Mercator Projection for New York, West Zone (3103), North American Datum (NAD) of 1983.

Vertical Datum: Feet relative to International Great Lakes Datum of 1985 (IGLD85). Low Water Datum (LWD) is equal to +243.3 feet, IGLD85. LWD is recorded as 243.3 feet above Mean Sea Level (MSL) at Rimouski, Quebec (International Great Lakes Datum, 1985).

1.5 Regional Dredging Management Plan Update

According to the Regional Dredging Management Plan Update prepared for the NYSDOS (F-E-S, 2014), the following was identified for the site.


• Designated as a Class III harbor that generally has 50% sand and 50% silt in the navigation channel (i.e., the Lake Approach and Entrance Channels), and generally 50% silt and 50% clay in the Harbor Basin.

• Class III harbors are considered suitable for hydraulic and/or mechanical dredging • Types of Use: Recreational boating, charter fishing boats. • Services Supported: 422 boat slips, 6 boat launch lanes, 38 charter boats, 117 jobs

o Orleans County reports 38 charter fishing boats generating approximately $310,000 in net annual income

o Orleans County Sheriff Marine Patrol and Coast Guard Auxiliary are located in the harbor • Critical Desired Bottom Elevation: 236 feet, IGLD85 (-7.3 feet, LWD) • Dredge Quantity and Frequency: 15,000 cubic yards (CY) at five-year intervals (= 3,000 CY/year) • Federally Authorized Navigation Channel: Yes; Project Depth elevation in Lake Approach West and

East Channels and Entrance Channel equals 233.3 feet, IGLD85 (-10 feet, LWD); East Project Depth elevation in Harbor Basin equals 235.3 feet, IGLD85 (-8 feet, LWD)

1.6 Sediment Budget

The USACE Buffalo District maintains an online interactive viewer depicting the movement of sediment along the southern shoreline of Lake Ontario (USACE, 2021). The “budget” is a measure of sediment sources, sinks, net changes, and direction of transport between littoral cells. (https://usace.maps.arcgis.com/apps/MapSeries/index.html?appid=34476ea8c07a4111841d28a5d960cb02)

According to the USACE’s sediment budget, the direction of net littoral sediment transport at Oak Orchard Harbor is predominantly from west to east (Figure 1.2). The sediment budget is summarized below:

• 3,100 cubic yards per year (CY/yr) are transported from updrift sources (from the west) • 400 CY/yr are retained updrift (west of the channel) • 1,600 CY/yr are lost offshore • 800 CY bypass the navigation channel • 300 CY/yr are deposited within the federal navigation channel, specifically the southern portion of the

Entrance Channel and the northern portion of the Harbor Basin

Figure 1.2: Sediment Budget (USACE, 2021a) [Figure excerpt extracted from USACE online interactive viewer]

Proposed Dredge Limit (approximate)

Proposed Placement Area Extents (approximate)

https://usace.maps.arcgis.com/apps/MapSeries/index.html?appid=34476ea8c07a4111841d28a5d960cb02


1.7 Dredging Activity

Historic dredge-related activities performed at the site are briefly summarized below; it is not intended to be an exhaustive account of activities. Figure 1.3 shows the USACE Buffalo District project map of the federal navigation channel at Oak Orchard Harbor, including the navigation channel extents and authorized and maintained channel depths. According to the USACE Buffalo District project map:

• The authorized federal navigation channel is 150 feet wide throughout the Lake Approach West and East Channels, 90 feet wide throughout the Entrance Channel and 200 feet wide throughout the Harbor Basin. The channel extends approximately 1,200 feet upstream into Oak Orchard Creek and approximately 800 feet beyond the detached breakwater into Lake Ontario.

• Currently, the USACE maintains the Lake Approach West and Entrance Channels to -10 feet LWD, the Lake Approach East Channel to -7 feet LWD, and the Harbor Basin -8 feet LWD.

• Since 1991, dredging has been typically performed using a clamshell/excavator dredging equipment. The channel has been dredged by the USACE to varying elevations during its maintenance dredge events.

• Table 1.1 summarizes dredging activity at Oak Orchard Harbor obtained from dredge records provided by the USACE.

o The site was last dredged by USACE in 2014, performed under NYSDEC permit issued in 2014 (#8-3424-00056/00007; expired in 2014) (NYSDEC, 2014)

o According to (F-E-S, 2014), additional dredging event was performed under the NYSDEC permit #8-3424-00056/00006 issued to the USACE in 2004. A USACE permit was not issued since the USACE performed the work.

Table 1.1: Dredging Activity at Oak Orchard Harbor

Dredge Event (Year)

Dredge Method Placement Area Dredge

Quantity (CY)2014 Excavator Open Lake 9,1892004 Clam Open Lake 10,7032000 Clam Open Lake 13,9291997 Clam Open Lake 11,4071991 Clam Open Lake 9,436

54,664Total:


Figure 1.3: USACE Federal Navigation Channel at Oak Orchard Harbor (USACE, 2021b)


2. Basis of Design: Dredge Site The federal navigation channel at Oak Orchard Harbor is maintained by the USACE. The authorized channel is approximately 3,145 feet long by 90 to 200 feet wide with authorized project depths to -10 feet, LWD in the Lake Approach and Entrance Channels and -8 feet LWD in the Harbor Basin. Per direction received from NYSOGS, the target dredge elevation within the proposed dredge limit is defined at +235.3 feet, IGLD85 (-8 feet, LWD) in the Lake Approach West Channel and Entrance Channel and +236.3 feet, IGLD85 (-7 feet, LWD) in the Lake Approach East Channel. The proposed dredge limit is contained within the extents of the authorized federal navigation channel (see Figure 2.1) and is intended to help maintain navigation within the channel until the next USACE maintenance dredging event. The estimated dredge extents indicate the material identified for removal within the proposed dredge limit at the time of the pre-design bathymetric surveys (see Section 2.3); the actual dredge extents may vary at the time of construction. Additional details are shown in the final permit drawings (Appendix A).

Figure 2.1: Proposed Dredge Limit (plan view) [Figure excerpt extracted from the Final Permit Drawings included in Appendix A]


2.1 Dredge Template & Quantities

The proposed dredge limit defined below is for permitting purposes; construction methods, natural equilibration and shoaling of the channel post-construction may result in bathymetric variations.

Horizontal Limits (plan view/footprint shown on Figure 2.1): • The proposed dredge limit is specified to target dredging of the shallower areas within the federal

channel located within the northern portion of the Entrance Channel and the southern portions of the Lake Approach West and East Channels.

• The proposed dredge limit is approximately 950 feet long by 90 to 150 feet wide, equating to a footprint of approximately 2.91 acres.

• The estimated dredge extent for the dredging event is depicted to highlight where dredging is anticipated within the proposed dredge limit. The estimated dredge extent contained within the proposed dredge limit was based the pre-design bathymetric survey conducted by the USACE in July 2020 and on the Lake Approach West and Entrance Channel bottom being dredged to +235.3 feet, IGLD85 (-8 feet, LWD) and the Lake Approach East Channel bottom being dredged to +236.3 feet, IGLD85 (-7 feet, LWD). The footprint of the estimated dredge extent is 1.69 acres, but the actual extents dredged may change based on the condition of the channel at the time of construction.

Vertical Limits (cross-section shown in Figure 2.2): • The sides of the proposed dredge limit are defined to be consistent with the extents of the USACE

federal authorized navigation channel. The limits are specified as a box with vertical sides 90 to 150 feet apart (i.e., wide).

• The target dredge elevation for the Lake Approach West Channel and Entrance Channel is defined at +235.3 feet, IGLD85 (-8 feet, LWD) per NYSOGS’s response to request for information (RFI) #021 (NYSOGS, 2021), which would restore the targeted portions of the Lake Approach West and Entrance Channels to an elevation two feet above the USACE authorized depth.

• The target dredge elevation for the Lake Approach East Channel is defined at +236.3 feet, IGLD85 (-7 feet, LWD) per NYSOGS via email communication on March 1, 2021, which would restore the targeted portion of the Lake Approach East Channel to the USACE maintained depth.

Overdredge (cross-section shown in Figure 2.2): • An overdredge allowance is included to accommodate the accuracy of dredging techniques to more

completely excavate material and achieve the neatline dredge elevation within the proposed dredge limit. The overdredge allowance is defined to be consistent with USACE allowances used on similar dredging projects in Lake Ontario.

• An overdredge allowance of one foot below the neatline dredge elevation is defined for the project. This results in overdredge elevations of 234.3 feet IGLD85 (-9 feet, LWD) in the Lake Approach West and Entrance Channels and 235.3 feet IGLD85 (-8 feet, LWD) in the Lake Approach East Channel.

• Overdredge with slopes of 3 feet horizontal to 1 foot vertical (3H:1V) from the neatline dredge elevation up to existing grade along the sides of the channel is defined to account for material potentially falling into the proposed dredge limit during construction.

The estimated neatline dredge quantity is 5,014 CY within the proposed dredge limit based on the pre-design bathymetric surveys conducted July 2020. An additional 3,062 CY is contained within the overdredge allowance. Thus, up to 8,076 CY of material may potentially be removed or disturbed during construction. Assuming that only the neatline volume of 5,014 CY of material within the proposed dredge limit is removed, this quantity equates to nearly 2 years of advanced maintenance dredging when compared to the USACE annualized dredge rate (3,000 CY/year) suggested by the 2014 Regional Dredge Management Plan.


Figure 2.2: Proposed Dredge Limit (cross-section 01/05) [Figure excerpt extracted from the Final Permit Drawings included in Appendix A]

2.2 Cultural and Environmental Resources

A desktop review of the cultural and environmental resources within the proposed dredge limits was performed using the following publicly available agency databases. The information obtained is summarized below and provided in Appendix B.

• United States Fish and Wildlife Service (USFWS) Information for Planning and Consultation (IPaC) https://ecos.fws.gov/ipac/location/index o Endangered Species: No endangered species expected to occur. o Migratory Birds: Migratory bird information not available at the time of search. o National Wildlife Refuge Lands: No refuge lands. o Wetlands in the National Wetlands Inventory: Areas in the vicinity of the dredge location identified

as Freshwater Forested/Shrub Wetland, Lacustrine Limnetic, and Riverine Lower Perennial zone. • State Historic Preservation Office (SHPO) Cultural Resource Information System (CRIS)

https://cris.parks.ny.gov/ o No historical or archaeological features noted.

• National Park Service Nationwide Rivers Inventory (NRI) https://www.nps.gov/maps/full.html?mapId=8adbe798-0d7e-40fb-bd48-225513d64977 o The Oak Orchard River is identified as a free-flowing river segment of "outstandingly remarkable"

value. • Great Lakes Coastal Wetlands Decision Support Tool (CWDST)

https://www.greatlakeswetlands.org/DST/Home o The Oak Orchard River is considered Barrier (protected) coastal wetlands up to approximately the

south end of the west breakwater. • New York State Department of Environmental Conservation Environmental Resource Mapper

https://gisservices.dec.ny.gov/gis/erm/ o No state regulated wetlands noted.

https://ecos.fws.gov/ipac/location/index

https://www.nps.gov/maps/full.html?mapId=8adbe798-0d7e-40fb-bd48-225513d64977

https://www.greatlakeswetlands.org/DST/Home

https://gisservices.dec.ny.gov/gis/erm/


2.3 Pre-Design Investigations

Topographic/bathymetric surveys and sediment investigations were conducted to inform the design of the dredge site as well as satisfy permitting requirements. The pre-design investigations are described below.

2.2.1 Topographic/Bathymetric Surveys

A bathymetric survey of the dredge area was conducted by the USACE on July 9, 2020 (Figure 2.3). The survey indicated that the bathymetry within the federal channel was shallowest between in the northern portion of the Entrance Channel and the southern portions of the Lake Approach West and East Channels. As mentioned previously, this survey was used to define the proposed dredge limit and estimate the dredge extents and removal volumes for the project.

Additional details regarding the survey are provided in Appendix C.

Figure 2.3: Dredge Area Bathymetric Survey (USACE, July 2020) [Figure excerpt extracted from USACE project conditions soundings map included in Appendix C]

2.2.2 Sediment Investigations

This section summarizes Site-specific historical sediment data and the results of a sediment investigation performed at the Oak Orchard Harbor site for the REDI Dredging Project in November 2020.

Historical Sediment Data

Based on data and information provided by NYSDEC via a Freedom of Information Act request and confirmed at the Site permit pre-application meeting on May 29, 2020, the last known year sediment data was collected at the Site was in 2013. A total of 11 sediment samples were collected: 7 within the Federal Navigation Channel, 2 within an open lake placement area, and 2 within a reference area. Of the 7 samples collected within the Federal Navigation Channel, 4 were collected within the Lake Approach Channel, 1 was collected within the Entrance Channel, 2 were collected within the Harbor Basin. and 6 of the 7 samples were located within the proposed dredge area extents. All samples were analyzed for physical and chemical characteristics.


According to the sediment data collected in 2013, 1 of 6 sediment samples within the proposed dredge area was greater than 90% sand or gravel and was located within the Lake Approach East Channel. The remaining samples within the proposed dredge area were composed of 65-80% silt and clay (USACE 2013a).

The 6 samples within the proposed dredge were also analyzed for metals, organics, nitrogen, phosphorus, total oil and grease, polyaromatic hydrocarbons (PAHs), PCBs, and pesticides. USACE (2013a) stated the inorganics and pesticides results were not of toxicological concern. Metals and PAHs had comparable or less than the concentrations of the reference and disposal areas offshore. PCBs were not detectable throughout the dredge area (USACE 2013a). USACE Public Notice No. LOHD-14 published on December 13, 2013 prior to planned 2014 maintenance dredging stated the following: “the material proposed to be dredged from the Oak Orchard Harbor Federal Navigation Channels meets Federal guidelines and is suitable for open-lake placement” (USACE 2013b).

2020 Sediment Investigation

As part of the REDI Dredging Project, a sediment investigation was performed in the proposed dredge area in November 2020 to facilitate proper characterization of the dredged sediment to satisfy project permit requirements, assess compatibility of the dredged material with proposed placement area sediments, and verify the dredgeability of the sediments for construction. The sediment investigation was performed in accordance with the Site Sediment Sampling and Analysis Plan (SAP) (Anchor QEA, 2020) that was developed in accordance with NYSDEC, Division of Water, Technical and Operational Guidance Series 5.1.9, In-Water and Riparian Management of Sediment and Dredged Material (TOGS 5.1.9; NYSDEC 2004). The SAP was reviewed and approved by NYSDEC and NYSDOS prior to the start of sampling activities.

Appendix D presents the Sediment Sampling Summary Memorandum for the Site and details the operations, f ield data, and laboratory results of the sediment investigation. As described in Appendix D, three sediment samples within the proposed dredge limit above the maximum project depth were submitted to the project analytical laboratory for analysis. The grain size analysis results for the one sample within the Lake Approach East Channel equaled greater than 90% sand/gravel for the surface interval and less than 90% sand/gravel for an interval at depth (approximately 59% sand/gravel). The grain size results for the one sample within the Lake Approach West Channel were less than 90% sand/gravel (approximately 75% sand/gravel). The grain size results for the one sample within the Entrance Channel were less than 90% sand/gravel (approximately 48% sand/gravel). In accordance with the SAP, chemical analysis was performed on the samples that were less than 90% sand/gravel.

The chemical analysis results showed the samples within the Lake Approach East and West Channels had no exceedances of the TOGS 5.1.9 Class A Freshwater Sediment Quality Threshold values. The sample within the Entrance Channel had no exceedances of the TOGS 5.1.9 Class A values, with the exception of total Pesticides, which fell into the TOGS 5.1.9 Class B range. Based on the grain size results of the surface sediment within the Lake Approach East Channel and the chemical analysis results of the samples within the Lake Approach West and East Channels and the Entrance Channel, the sediment in the proposed dredge limit is considered suitable for in-water placement at an approved location.

Environmental Resource Investigations NYSOGS initiated coordination with NYSDEC regarding State Environmental Quality Review (SEQR) for the proposed project. NYSDEC correspondence (letter dated December 9, 2020) stated that there were no significant concerns with the project.

The December 9, 2020 letter from NYSDEC identified recorded occurrences of S1/S2 mussels being present upstream of the proposed dredge limit and stated that a mussel survey and potentially a mussel salvage/relocation effort would need to be performed. NYSDEC stated that the survey and salvage/relocation ef forts can be done simultaneously and during in-water work restriction windows. NYSOGS will continue coordination with NYSDEC to satisfy the project permit requirements regarding mussels.


3. Basis of Design: Placement Area The proposed placement area is located east of the federal channel within the nearshore littoral zone. The proposed placement area extents are shown in Figure 3.1. Additional details are shown in the final permit drawings (Appendix A).

An alternative analysis considering various options for placement area locations for the proposed project was conducted by NYSOGS. Documentation of this analysis is contained in a separate report not included herein.

Figure 3.1: Proposed Placement Area Extents (plan view) [Figure excerpt extracted from the Final Permit Drawings included in Appendix A]

3.1 Template & Capacity

Email correspondence with the USACE (dated July 6, 2020) and NYSDEC (July 23, 2020) established conditions for defining the bounds within which nearshore placement sites for the REDI Dredge Project may be located. The bounds were defined as follows.

• Littoral Transport: Placement sites shall generally be located downdrift of the dredge sites to promote natural littoral transport with additional consideration to compliment other REDI projects or supplement sediment starved areas if present adjacent to the dredge site.

• Depth of Closure: The +225.3 feet, IGLD85 (-18 feet, LWD) contour was used to define the depth of closure. All placed material shall be located shoreward of the depth of closure to maintain sediment


within the littoral system. The depth of closure defines the offshore limit of the littoral system, which as estimated to occur at 6 meters of water depth (Baird, 2011) relative to the USACE 2019 long-term mean water level statistics published for Lake Ontario (+245.3 feet, IGLD85) (USACE, 2020b).

• Navigation: Placement of material will be up to a maximum elevation of +238.3 feet, IGLD85 (-5 feet, LWD). This elevation maintains a minimum water depth of approximately 7 feet above the placed material based on the USACE 2019 long-term mean water level statistics published for Lake Ontario.

The proposed placement area is defined at follows. • Located east of the federal channel, downdrift of the dredge site according to the predominant

direction of littoral transport defined by the USACE (see Section 1.7). • Def ined with a lakeward boundary at the approximate +235 feet, IGLD85 contour, which is shoreward

of the depth of closure. • Def ined with a maximum elevation of placed material defined at +238.3 feet, IGLD85, which maintains

more than 5 feet of water depth for navigation. • Def ined with side slopes of 1V:15H to account for the natural stacking/slumping of material during

placement and provide additional assurance that material would be contained within the placement area during construction operations. According to the USACE, “a conservative estimate of the underwater side slopes of the mound formed by disposal was 1V:15H” (USACE, 1976).

The footprint of the proposed placement area (Figure 3.1) is estimated at approximately 25.7 acres. The estimated volume capacity of the placement area is 56,300 CY within the limits outlined above. Figure 3.2 shows an example cross section within the proposed placement area perpendicular to the shoreline. This capacity equates to approximately 7 times the maximum volume of material that may potentially be removed or disturbed during construction (8,076 CY; see Section 2.1). Nonuniform placement of material within the placement area is anticipated due to proposed construction methods. To the extent practicable, the contractor shall begin placement of dredged material in shallower portions of proposed placement area extents and progress towards deeper portions of placement area. To the extent practicable, contractor shall also minimize excessive mounding of material during placement by placing no more than one material load in any given location.

Figure 3.2: Proposed Placement Area (cross-section 05/07) [Figure excerpt extracted from Final Permit Drawings included in Appendix A]

3.2 Cultural and Environmental Resources

A desktop review of the cultural and environmental resources within the proposed dredge material placement area limits was performed using the following publicly available agency databases. The information obtained is summarized below and provided in Appendix B.


• United States Fish and Wildlife Service (USFWS) Information for Planning and Consultation (IPaC) https://ecos.fws.gov/ipac/location/index o Endangered Species: No endangered species expected to occur at this location. o Migratory Birds: No migratory birds of conservation concern expected to occur at this location. o National Wildlife Refuge Lands: No refuge lands. o Wetlands in the National Wetlands Inventory: Placement area identified as Lacustrine Limnetic

zone. • State Historic Preservation Office (SHPO) Cultural Resource Information System (CRIS)

https://cris.parks.ny.gov/ o No historical or archaeological features noted.

• National Park Service Nationwide Rivers Inventory (NRI) https://www.nps.gov/maps/full.html?mapId=8adbe798-0d7e-40fb-bd48-225513d64977 o No rivers noted.

• Great Lakes Coastal Wetlands Decision Support Tool (CWDST) https://www.greatlakeswetlands.org/DST/Home o No coastal wetlands noted.

• New York State Department of Environmental Conservation Environmental Resource Mapper https://gisservices.dec.ny.gov/gis/erm/ o No state regulated wetlands noted.

3.3 Pre-Design Investigations

Topographic/bathymetric surveys and sediment investigations were conducted to inform the design of the dredge site as well as satisfy permitting requirements. The pre-design investigations are described below.

3.2.1 Topographic/Bathymetric Surveys

A bathymetric survey of the placement area was performed by Prudent Engineering, LLP on November 11 and 12, 2020. The surveys indicate that the bathymetry within the proposed nearshore placement area range f rom approximately +235 to +239 feet, IGLD85 (approximately -8 feet LWD to -4 feet LWD). The survey was used to define the proposed placement area and estimate the volume capacity to contain dredged material for the project. Additional details regarding the survey are provided in Appendix C.

Figure 3.3: Placement Area Bathymetric Survey (Prudent Engineering, January 2021) [Figure excerpt extracted from survey report included in Appendix C]

https://ecos.fws.gov/ipac/location/index

https://www.nps.gov/maps/full.html?mapId=8adbe798-0d7e-40fb-bd48-225513d64977

https://www.greatlakeswetlands.org/DST/Home

https://gisservices.dec.ny.gov/gis/erm/


3.2.2 Sediment Investigations

This section summarizes Site-specific historical sediment data and the results of a sediment investigation performed at the Site for the REDI Dredging Project in November 2020.

Historical Sediment Data

As described in Section 2.2.2, the last known year sediment data was collected at the Site was in 2013, with 7 sediment samples within the Federal Navigation Channel, 2 within an open lake placement area, and 2 within a reference area. No sediment samples were collected within the vicinity of the proposed nearshore placement area extents.

2020 Sediment Investigation

As part of the REDI Regional Dredging Project, a sediment investigation was performed in the proposed placement area in November 2020 to facilitate proper characterization of the placement area sediment to satisfy project permit requirements and assess compatibility of the dredged material with proposed placement area sediments. The sediment investigation was performed in accordance with the Site Sediment Sampling and Analysis Plan (SAP) (Anchor QEA, 2020) that was developed in accordance with NYSDEC TOGS 5.1.9 (NYSDEC 2004). The SAP was reviewed and approved by NYSDEC and NYSDOS prior to the start of sampling activities.

Appendix D presents the Sediment Sampling Summary Memorandum for the Site and details the operations, f ield data, and laboratory results of the sediment investigation. As described in Appendix D, surface sediment sample collection was attempted using ponar grab sampling methods at 14 target locations within the proposed placement area extents. No sediment was recovered at any location due to a hard, rocky lake bottom encountered at each target location. Therefore, no laboratory analysis was performed on sediment within the proposed placement area.

3.2.3 Environmental Resource Investigations

No environmental resource investigations were performed within the proposed open-water nearshore placement area.


4. Construction

4.1 Means, Methods, and Durations

• Anticipated Means & Methods – Mechanical o Mechanical dredging operations will be performed with an excavator or material handler with a

hydraulic clamshell or digging bucket attachment. Equipment will be mounted on deck barge with self-elevating spuds. Dredging operations will be assisted by a tug boat.

o The mechanical dredging operations will remove littoral sediment to the authorized elevation, place the material into a scow (capacity ~200CY) and transport it to the nearshore placement area via tug boat. Naturally occurring sediments will be maintained in the littoral system.

o Material will be unloaded with in proposed nearshore placement area limits, progressing from the landward portion of the defined area to the lakeward portion to the greatest extent possible. Placement of material within the designated placement area will start approximately at

the 237.3’ IGLD (-6.0’ LWD) contour returning the sediments to the littoral drift system. Proposed scows have a 5 feet minimum operating draft; therefore, material will not be

placed in waters depths less than -6 feet LWD. o When placement is complete, a tug boat will transport scow back to proposed dredge limits

and continue the cycle until all material is removed.

• Alternative Means & Methods – Hydraulic o Hydraulic dredging operations will be performed via the use of an excavator with a hydraulic

cutterhead and suction pump attachment mounted on the boom. Equipment will be mounted on deck barge with self-elevating spuds. Dredging operations will be assisted by a tug boat.

o The hydraulic cutterhead and suction pump work in conjunction to remove the material by breaking up the sediment and combining it with lake water to create a slurry. The slurry will then be transported via an enclosed 6”-12” diameter discharge pipe to a scow which will be moored alongside the dredge barge.

o The hydraulic dredging operations will remove littoral sediment to the authorized elevation, place the material into a scow (capacity ~200CY) and transport it to the nearshore placement area via tug boat. Naturally occurring sediments will be maintained in the littoral system.

o Material will be unloaded with in proposed nearshore placement area limits, progressing from the landward portion of the defined area to the lakeward portion to the greatest extent possible. Placement of material within the designated placement area will start approximately at

the 237.3’ IGLD (-6.0’ LWD) contour returning the sediments to the littoral drift system. Proposed scows have a 5 feet minimum operating draft; therefore, material will not be

placed in waters depths less than -6 feet LWD. o When placement is complete, tug boat will transport scow back to proposed dredge limits and

continue the cycle until all material is removed.

• Schedule o Target Mobilization Date – Summer 2021 o Duration – 20-25 Working Days

• Navigation

o Dredge Area Channel width (min) = 90’ Equipment setup width (Spud Barge 50’+/- & Scow 50’ +/-) = 100’ +/- Safety Zone around dredging equipment = 25’ ~25’ navigational zone to be maintained around dredging operation


• The proposed maintenance dredging of the federal navigational channels at Oak Orchard Harbor will maintain access to the harbor and Lake Ontario for recreational vessels.

Dredging operation to monitor VHF channel 16 at all times o Placement Area

Placement Area Location - Buoys to be placed at the 4 corners of the placement area by contractor.

o Notice to Mariners Notice to mariners will be submitted 2 week in advance of mobilization to United States

Coast Guard District 9 via email. • [email protected]

• Mobilization/Demobilization o All equipment will be mobilized and demobilized via water. o Crews will access equipment via crew boat departing from marinas located within Oak Orchard

Harbor. • Survey

o Pre-dredge survey to be completed 2-weeks prior to mobilization. o Equipment will be equipped with dredging software to monitor dredging depths. o Post-dredge survey to be completed immediately upon completion of dredging operations.

4.2 Environmental Protection Measures

The following conditions were included in the 2014 permit issued to the USACE for the 2014 dredge event as well as the SEQR Lead Agency response letter issued to NYS OGS by NYS DEC region 8 on December 9, 2020 and are considered here as potentially applicable or relevant:

• The NYSDEC permit issued to the USACE for the 2014 dredge event specified that “All dredging and placement of dredged material offshore shall be performed during the period of June 7th through September 1st.

o The proposed dredging will seek to avoid restricted dates or dates set forth by regulatory authorities in newly authorized permit.

• Turbidity control and monitoring requirements were not defined within 2014 permit. o The proposed dredging will not utilize turbidity controls, as it has not been a requirement in

historical dredging activities. Dredging operations will operate to minimize turbidity to the greatest extent possible.

• Dredging activities to have minimal impact on environment and surrounding communities. o The proposed dredging will mobilize and operate floating equipment on site via water in order

to minimize impact to the environment and surrounding communities. • Dredging activities to comply with all applicable federal, state, and local laws and regulations as well

as requirements outlined and established by the regulatory agencies and project permits.

mailto:[email protected]


Figure 4.1: Typical Equipment Setup - Mechanical Means and Methods

Figure 4.2: Typical Equipment Setup - Hydraulic Means and Methods


5. References Anchor QEA Engineering, PLLC (Anchor), 2020. Sediment Sampling and Analysis Plan Site 03: Oak Orchard

Harbor. Prepared for the New York State Office of General Services as part of the REDI Regional Dredging Project. NYSOGS Project No. 46224. October 2020.

F-E-S Associates (FES), 2014. Regional Dredging Management Plan Update – Final Report. Prepared for New York State Department of State Division of Coastal Resources. December 2014.

New York State Department of Environmental Conservation (NYSDEC), 2004. In-Water and Riparian Management of Sediment and Dredged Material. Division of Water Technical and Operational Guidance Series 5.1.9. November 2004.

New York State Department of Environmental Conservation (NYSDEC), 2014. Oak Orchard Harbor Dredging. Permit ID 8-3424-00056/00007. Issued to USACE. Effective March 4, 2014. Expiration December 31, 2014.

New York State Office of General Services (NYSOGS), 2021. Project Number 46224 REDI Dredging - Request for Information #021. Dated January 25, 2020.

United States Army Corps of Engineers (USACE), 1976. Great Sodus Bay, Little Sodus Bay, Oswego Harbors: Environmental Impact Statement.

USACE (U.S. Army Corps of Engineers), 2013a. “Evaluation of Oak Orchard Harbor Federal Navigation Channel Material with Respect to Suitability for Open-Lake Placement.” Contaminant determination portion (40 CFR 230.11[d]) of the larger Clean Water Act Section 404 (b)(1). USACE Buffalo District. 2013.

USACE, 2013b. Public Notice: Operation and Maintenance Dredging and Dredged Material Placement. “FY 14 Disaster Relief Appropriations Act (Hurricane Sandy) Supplemental Lake Ontario Harbor Maintenance Dredging.” December 13, 2013. From data provided in response to a Freedom of Information Act request submitted to the U.S. Army Corps of Engineers and the New York State Department of Environmental Conservation in March 2020.

United States Army Corps of Engineers (USACE), 2020b. Final 2019 and Long-Term (1918-2019) Mean, Max, & Min Monthly Mean Water Levels. Dated February 4, 2020. https://www.lre.usace.army.mil/Missions/Great-Lakes-Information/Great-Lakes-Information-2/Water-Level-Data/

United States Army Corps of Engineers (USACE), 2021a. Sediment Budgets for Lake Erie and Lake Ontario. Online interactive viewer (accessed February 2021), https://usace.maps.arcgis.com/apps/MapSeries/index.html?appid=34476ea8c07a4111841d28a5d960cb02.

United States Army Corps of Engineers (USACE), 2021b. Oak Orchard Harbor Project Map. USACE Buffalo District. Dated February 2018. Accessed online in February 2021 from https://www.lrb.usace.army.mil/Portals/45/docs/Navigation/Irondequot/Irondequoit%20Bay%20(23)(Feb2018).pdf?ver=2019-06-18-114437-833

W.F. Baird & Associates (Baird), 2011. Lake Ontario Ecological Sediment Budget. Prepared for USACE Buffalo District. May 2011.

https://www.lre.usace.army.mil/Missions/Great-Lakes-Information/Great-Lakes-Information-2/Water-Level-Data/

https://www.lre.usace.army.mil/Missions/Great-Lakes-Information/Great-Lakes-Information-2/Water-Level-Data/



Sincerely,

R. Daniel Mackay

Deputy Commissioner for Historic PreservationDivision for Historic Preservation

Based upon this review, it is the opinion of OPRHP that no properties, including archaeological and/or historic resources, listed in or eligible for the New York State and National Registers of Historic Places will be impacted by this project.

If further correspondence is required regarding this project, please be sure to refer to the OPRHP Project Review (PR) number noted above.

Re:

Thank you for requesting the comments of the Office of Parks, Recreation and Historic Preservation (OPRHP). We have reviewed the project in accordance with the New York State Historic Preservation Act of 1980 (Section 14.09 of the New York Parks, Recreation and Historic Preservation Law). These comments are those of the OPRHP and relate only to Historic/Cultural resources. They do not include potential environmental impacts to New York State Parkland that may be involved in or near your project. Such impacts must be considered as part of the environmental review of the project pursuant to the State Environmental Quality Review Act (New York Environmental Conservation Law Article 8) and its implementing regulations (6 NYCRR Part 617).

March 08, 2021

Thomas ThelenW.F. Baird & Associates Ltd.4213 St Clair St#200Madison, WI 53711

OGSREDI Regional Dredging Program - Lake Ontario - Oak Orchard HarborNavigation channel between Oak Orchard Harbor and Lake Ontario, Carlton, Orleans County, NY21PR01242OGS Project #46224

Dear Thomas Thelen:

Division for Historic PreservationP.O. Box 189, Waterford, New York 12188-0189 • (518) 237-8643 • parks.ny.gov

ANDREW M. CUOMOGovernor

ERIK KULLESEIDCommissioner

March 19, 2021 Mr. Thomas Haley, Regional Permit Administrator, NYSDEC – Region 8 Mr. Matthew Maraglio, Coastal Resources Specialist, NYSDOS Re: Sediment Placement Alternatives Analysis for Oak Orchard Harbor REDI Dredging

(DEC ID 8-3424-00056/00008) Dear Tom and Matt, Please find attached to this letter an alternatives analysis intended to provide involved agencies with the background and rationale supporting the selected sediment placement alternative – near-shore placement – for the proposed Oak Orchard Harbor REDI dredging project. This alternatives analysis is intended to support the Joint Application submitted by Baird, on behalf of NYSOGS. Please let me know of any questions or concerns pertaining to this analysis. Sincerely,

Kristin Sorbaro Kristin Sorbaro REDI Dredging Program Manager New York State Office of General Services – Design and Construction Encl: Alternatives Analysis

Oak Orchard Harbor Sediment Placement Alternatives Analysis

Section I. Purpose

The purpose of this document is to evaluate potentially appropriate outlets for sediments dredged from sites within the New York State Office of General Service’s (NYSOGS) Lake Ontario Resiliency and Economic Development Initiative (REDI) dredging program. The REDI dredging program includes dredging along the Lake Ontario and St. Lawrence rivers to maintain resiliency, economic development and access to recreation and navigational channels and harbors. This evaluation considers the range of potential sediment disposition and disposal options available to sites within the REDI program and presents a site-specific selection justification.

Section II. Placement Alternatives Analysis

The following disposal and disposition alternatives were identified as having been previously authorized/permitted or potentially appropriate based on regulations and guidance:

A. Open Lake Placement B. Near-Shore Placement (within the littoral zone) C. Beneficial Reuse – beach nourishment or upland reuse D. Upland disposal at a regulated facility

The following assessments has been made for each of the noted alternatives.

A. Open Lake Placement. Open lake placement is understood to mean placement of dredged sediments in deep waters of Lake Ontario. Two open lake placement locations have been identified, permitted and previously used by United States Army Corps of Engineers (USACE) for placement of sediments dredged from Federal Navigational Channels along Lake Ontario; these locations are up to 2 miles offshore. Use of these open lake sites was discussed with USACE, New York State Departments of Environmental Conservation (NYSDEC) and State (NYSDOS) during regional pre-application meetings conducted in April 2020, as well as subsequent conversations with DOS and OGS. Open lake placement is discouraged by both state and federal agencies as it removes sediment volume from the near-shore area and associated littoral sediment transport systems.

B. Near-Shore Placement. Near-shore placement entails the relocation of dredged sediments from the dredging area to other in-water locations within the littoral zone. The sediments are retained within the littoral sediment transport system. Retaining this sediment within the littoral system allows for natural sediment movement within the Lake Ontario near shore system and makes the sediment available for processes such as natural beach nourishment and increased resiliency from erosional forces. Generally, littoral zone placement is proposed for disposition of the dredged material under the REDI program as it provides the greatest environmental value in consideration of operation and budget constraints. Near-shore placement areas are defined for the purposes of this program to be all in-water area shoreward of an elevation of approximately 18-ft below low water datum (LWD) or approximately El. 228.3 IGLD85 (Baird 2011). Areas with water depths beyond that elevation will be assumed to not substantively contribute to the desired sediment transport processes. These limits have been defined through correspondence with USACE (dated July 6, 2020) and NYSDEC (dated July 23, 2020). The sediments targeted for removal under the REDI dredging program currently lie within these littoral zone boundary elevations.

For purposes of identifying specific near-shore placement locations, down-drift areas will be preferred to up-drift areas. This approach minimizes the potential for recently placed sediments depositing back into the dredge area and help to avoid starving the downdrift sediment system. Updrift locations may be considered on a site-specific basis where a specific benefit to shoreward transport for beach nourishment is identified. Actual placement limits will be determined by the operational limitations of the dredging process equipment and with consideration given to the water depths available for navigation following placement. Operationally, dredged sediments are anticipated to be placed in an approximately 20 CY container on the dredging platform, transported to the proposed placement area, and placed by excavator within the littoral zone. For planning purposes the shoreward limit of near-shore placement assumes that a water depth of 8-feet is needed for draft and operation of the equipment from the water surface at the time of dredging and the as-placed sediment elevation does not exceed 3-ft below LWD in order to provide at least 3-ft water depth for navigation. Under a typical Lake Ontario water level of 245', these water depth limitations mean that the practicable near-shore limit of placement will likely be approximately 237' (-6 LWD). If water levels allow, placement up to 240' (-3 LWD) may be implemented.

C. Beneficial Reuse. Beneficial reuse reflects the placement of dredged material generally at the water’s edge or upland areas for purposes such as shoreline stabilization, beach nourishment or other beneficial upland use. Under the REDI program funding, placement options in this manner are limited to publicly owned lands because capital improvements to private lands cannot be made under this program. Upland beneficial reuse at recognized REDI projects are evaluated on a site-specific basis based on volume of material needed, geotechnical requirements, and distance from the dredging location. Beneficial reuse is recognized as a priority outlet for dredged material where conditions allow. General beach nourishment for areas not within a recognized REDI project locations are not being considered for this program. Preliminary assessment of disposal locations did not readily identify beach areas where placement would be allowable under the REDI program constraints. Additionally, shoreline stabilization or beach nourishment placement would necessitate contractual changes to, or addition of, equipment and methods, ultimately increasing project duration and cost.

D. Upland Disposal. Upland disposal reflects placement of the dredged sediment in an upland facility such as a landfill. Upland disposal would necessitate additional personnel, equipment and other costs for such activities as dewatering of sediments, transport of the sediments by truck over the road to a disposal facility. Upland disposal will typically increase project durations and generate more greenhouse gas emissions from equipment required to manage and transport the sediments to the upland facility and reduce the limited available capacity of existing disposal facilities. As such, disposal in an upland facility will be proposed when the nature of the dredged sediment does not meet regulatory requirements for in water placement or other beneficial reuse, or the physical or chemical nature of the sediment does not support beneficial reuse.

Section III. Qualitative Alternatives Evaluation for Oak Orchard Harbor

The REDI dredging program has identified near-shore placement within the littoral zone as the preferred disposition for dredged sediments programmatically. This alternative is generally the most implementable, cost effective and least impact option allowable under the program constraints. Littoral zone placement is consistent with NYSDOS and NYSDEC coastal zone priorities and should help to maintain a favorable sediment balance along the shoreline. Upland beneficial reuse and upland disposal may be considered on a site-specific basis as allowable or necessary.

Table 1 presents site-specific considerations for Oak Orchard Harbor of the alternative’s assessment criteria and applies a scoring system to rank the relative benefit of each disposition/disposal option evaluated against the specific criterial. Where two or more alternatives carry similar favorability, both will be assigned the higher rank value. The total rank score is then used to assess favorability. Lower ranking scores indicate more favorable alternatives.

Material within the proposed dredge area at Oak Orchard Harbor consists of primarily silt and fine sands with some organics. Evaluation of physical parameters indicates less than 90% sand/gravel at three of four locations sampled within the proposed dredge area. The sample with greater than 90% sand/gravel (03-Oak-SP-03-0.0-1.2) is located within Lake Approach Channel east of the main stem of the navigational channel.

Sample locations with less than 90% sand/gravel (03-Oak-SP-02, 03-Oak-SP-03-1.2-4.0 and 03-Oak-SP-04) were analyzed for chemical parameters as required by TOGS 5.1.9. The results indicated no exceedances of the Class A threshold for freshwater sediments, with the exception of total DDx at 03-Oak-SP-04, which is just above the Class A threshold (5.77 ug/kg vs 3.3 ug/kg Class A NYS TOGS 5.1.9 Sediment Quality Threshold Value). An average of the total DDx values from the dredging area samples with less than 90% sand and gravel was 3.4 ug/kg, which is borderline with the TOGS Class A threshold. The individual sample in question and the average values are also an order of magnitude less that the total DDx threshold value of 44 ug/kg provided in NYSDEC (2014).

Historically, open lake placement of dredged material was permitted at Oak Orchard Harbor, as sampling data collected from within the channel boundaries was found to be toxicologically comparable to open lake reference and placement area sediment (USACE, 2013). However, given the preference for near-shore placement within the littoral zone, near-shore placement is selected for Oak Orchard Harbor dredged material disposition.

See Table 1 for Oak Orchard Harbor placement area alternatives ranks and rationale.

References

NYSDEC, 2014. Screening and Assessment of Contaminated Sediment. New York State Department of Environmental Conservation Division of Fish, Wildlife and Marine Resources Bureau of Habitat. June.

USACE, 2013. US Army Corps of Engineers. Evaluation of Oak Orchard Harbor Federal Navigation Channel Material with Respect to Suitability for Open-Lake Placement. 2013

W.F Baird & Associates (Baird), 2011. Lake Ontario Ecological Sediment Budget. Prepared for USACE Buffalo District. May 2011.

.

Table 1. Alternative Ranks and Rationale for the Oak Orchard Harbor Sediment Placement Site

Alternative Program Alignment Environmental Benefit

Implementability and Logistical Constraints

Relative Cost Total Rank and Selected Alternative

A. Open lake placement 2 (tie) – Does not align with DEC and DOS priority

3 (tie) – Provides no benefit

2 – Outside of REDI budget Longer haul routes than near-shore placement

2 – Increased equipment and personnel need for longer haul routes

9 – Not selected

B. Near-shore placement 1 (tie) – Aligns with DEC and DOS priorities by supplementing littoral drift

2 – Indirect resiliency benefit

1 – None – within contract scope and budget established to execute the dredging program

1 – Most cost-efficient equipment setup and operation

5 – Selected

C. Beneficial reuse

1 (tie) – Aligns with DEC and DOS priorities by nourishing beach

1 – Direct resiliency benefit

3 (tie) – Outside of REDI Budget Additional equipment and handing necessary for offloading, dewatering and/or truck transport

3 – Increased equipment and personnel for re-handling and placement in shallow water/on-shore

8 – Not selected

D. Upland Disposal 2 (tie) – Does not align with DEC and DOS priority

3 (tie) – Does not provide any clear benefit

3 (tie) – Outside of REDI budget Additional equipment and handing necessary for offloading, dewatering and/or truck transport

4 – Disposal costs incurred in addition to similar equipment and personnel costs noted for Beneficial Reuse

12 – Not selected

answered “moderate to large impact may occur”, or if there is a need to explain why a

✔

January 25, 2021 Mr. Kyle W. Buelow, CERP, CPESC, CPSWQ Technical Associate Ramboll 333 West Washington Street Syracuse, NY 13202 Dear Mr. Buelow, We have reviewed the New York State Section 401 Water Quality Certification Pre-Filing Meeting Request, dated January 14, 2021 and received by our office that same day, for the following REDI Lake Ontario dredging projects:

A. Bear Creek (DR.16; DEC ID 8-5434-00042/00015) B. Pultneyville (DR.7; DEC ID 8-5446-00017) C. Irondequoit Bay (DR.17; DEC ID 8-2699-00001/00007) D. Sandy Creek (DR.8; DEC ID 8-2630-00050/00045) E. Long Pond Outlet (DR.12; DEC ID 8-2628-00324/00005) F. Johnson Creek (DR.13; DEC ID 8-3424-00514/00001) G. Oak Orchard Harbor (DR.9; DEC ID 8-3424-00056/00008)

As you are aware, the regulations provide for a 30-day review period, commencing when the application is received. Therefore, the review period ends February 6, 2021. Since DEC has already completed cursory reviews for these projects, we have determined that further pre-application meetings are unnecessary, but we will continue coordinating through the established REDI review process. Further, while DEC normally requires applicants to wait until the end of the 30-day review period to submit their permit applications, we are waiving that requirement for these projects, since the REDI program is a priority. Please submit electronic copies of the permit applications for each of the above listed projects as soon as they are ready to [email protected]. Sincerely, Frances Knickmeyer Environmental Analyst ECC: Tom Haley, Regional Permit Administrator

Heather Adams, USACE Kristin Sorbaro, NYSOGS Ralph Hill, NYSOGS Tony Eallonardo, Ramboll Michael Manning, Ramboll

Digitally signed by Frances Knickmeyer Date: 2021.01.25 12:34:49 -05'00'

Basis of Design Report - Department of State

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