FINAL REPORT
BEAVER DAM CREEK WATERSHED MANAGEMENT PLAN
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Prepared by: Nelson. Pope & Voorhis, LLC 572 Walt Whitman Road Melville, New York 11747 Contact: Charles Voorhis, CEP, AICP (631) 427-5665
June 2009
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This report was prepared for the New York State Department of State and the Long Island South Shore Estuary Reserve Council with funds provided under Title 3 of the Environmental Protection Fund. Plan
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1-3 1-1 i-I
2-i 2-2 2-3 2-4 2-6 2-9 2-6 2-7
3-i 3-2 3-i 3-3 4-3 4-7 3-1 4-3 4-1 4-5
2-16 2-15 2--is 2-17 2-16 2-18 2-27 2-27 2-28 2-31 2-29 2-32 2-31 4-10 4-10
ii
Report
Final
Management
PLAN
Watershed
Creek
Dam
MANAGEMENT
Beaver
Control
and
Contents
Reduction
Habitats
REPORT
Management Spaces
of
Areas
Land
Open
Wetland WATERSHED
Pollutant
Table
and
FINAL
and
Management
&
Loading
Tidal
Actions
Resources
&
Source
Management
Quality
CREEK
Protection
Impairments
Zoning
Recreation
ANALYSIS
Outreach
Pollutant
Runoff Priority
Natural
and
Area
Water
Recommendations Sources
of
and
Nonpoint
Resources
Freshwater
and
Resources
Water
DAM
Habitat
Inventory
CHARACTERIZATION and
Habitat Resource
LOAD
Access,
Uses
Sets
Inventory
and
Study
Objectives c..LrwG
Load •
Resources
Resources
Stonnwater
Runoff Pollution
Soils
Surface
Topography Groundwater Special
Aquatic Current Upland, Known Cultural
Current Land Public Data
Resources
and Protection Education Point Monitoring
Projects
Use
SUMMARY
CONTENTS VI-S
BEAVER
SKEET
Goals INTRODUCTION
Purpose
2.2.2 2.2.1
Geologic 2.3.1 2.3.2 Watershed
OF 2.4.2 2.4.3 2.4.1 2.4.4 2.4.5 Water 2.5.1 2.5.2 Natural 2.5.3 2.6.1 Land 2.6.2 Stormwater Surface 3.1.1 3.1.2 Pollutant
4.1.1 4.1.2 Watershed-Wide 4.1.3 4.1.4
WATERSHED
POLLUTANT RECOMMENDATIONS
Target
1.2 1.1
2.1
2.2
2.3
2.4
2.5
3.1
3.2
2.6
4.1
4.2
hPSW
COVER TABLE 1.0 EXECUTIVE ACKNOWLEDGEMENTS
2.0
3.0 4.0 Beaver Dam Creek Watershed Management Plan Final Report
5.0 IMPLEMENTATION STRATEGY 5-1 5.1 Revisions to Local Land and Water Use Controls 5-2 5.2 Implementation Actions According to Governmental Jurisdiction 5-4 5.3 Cost and Potential Funding Sources 5-17
6.0 REFERENCES 6-1
Appendix A: Priority Waterbodies List (PWL) Report Excerpt
TABLEs Table 2-1 FEMA Flood Hazard Area Descriptions Table 2-2 NYSDEC Surface Water Quality Classifications Table 3-1 Pollutant Load Analysis Calculations & Loading Estimates Table 3-2 Reach Summary of Pollutant Loading Estimates Table 4-1 Specific Recommended Stormwater Management Improvements within the Beaver Darn Creek Watershed Management Area Table 5-1 Implementation Strategy for Beaver Dam Creek Jurisdictions & Actions
FIGuREs Figure 1-1 Aerial View of Study Area Figure 1-2 Regional Aerial View Figure 2-1 Topography Figure 2-2 Soils Map Figure 2-3 Groundwater Resources Figure 2-4 Public Water Supply Figure 2-5 FEMA Flood Zone Map Figure 2-6 Sea, Lake and Overland Surges from Hurricanes (SLOSH) Data Map Figure 2-7 NYSDEC Wetlands Figure 2-8 Fish and Wildlife Significant Habitat Areas Figure 2-9 NYSDEC Shellfish Closure Areas Figure 2-10 2007 Fish Barrier Inventory Figure 2-11 Publicly Owned Lands Figure 2-12 Land Use Map Figure 2-13 Zoning Map Figure 2-14 Stonnwater Inventory
Figure 2-14a Stonuwater Inventory — Reach 1 Figure 2-14b Stormwater Inventory — Reach 2 Figure 2-14c Stormwater Inventory — Reach 3
tEPS! rLS’I pcpE G V- LLC EN1RWNThL • PIF. • Beaver Dam Creek Watershed Management Plan Final Report
Acknowledgements
The Beaver Dam Creek Watershed Management Plan was prepared with the efforts of the following government officials, agencies, community advisors and consultants.
State of New York Dennis Mildner, Coastal Resource Specialist, New York State Department of State (DOS) Tracey O’Malley, Coastal Resource Specialist, New York State Department of State (DOS) Jeffrey Fulimer, Director, Long Island South Shore Estuary Reserve Office (SSER) Clare O’Reilly, Program Implementation Specialist (SSER) Sherry Forgash, Program Implementation Specialist (SSER) Chart Guthrie, Fisheries Specialist, New York State Department of Environmental Conservation (NYSDEC)
Suffolk County Robert Higgins, Suffolk County Planning Commission Nancy Panarese, Suffolk County Department of Health Seriices (SCDHS) Andy Rapiejko, Suffolk County Department of Health Services (SCDHS) Nicole Spinnelli, Suffolk County Soil & Water Conservation District (SCSWCD) Robert Waters, Suffolk County Department of Health Services (SCDHS)
Watershed Advisory Committee Bethany Bearmore, National Oceanic and Atmospheric Administration (NOAA) Ken Budny, Post-Morrow Foundation Craig Ferris, Ducks Unlimited Walter Dawydiak, Suffolk County Department of Health Services (SCDHS) Derek Rogers, Suffolk County Department of Health Services (SCDHS) Dick Watson, Suffolk County Planning Commission Anthony Graves, Town of Brookhaven Department of Planning Michael Jensen, Suffolk County Department of Health Services (SCDHS) Karen Blumer, Open SpacePreservationTrust Jake Kritzer, Environmental Defense Martin Van Lith, Open SpaceCommission Mary Jane Cullen, Brookhaven Village Association Michael Mule, Suffolk County Planning Commission Dan O’Connor, Teacher, Bellport High School/Students for Environmental Quality (SEQ) Alan Svoboda, Town of Brookhaven Department of Environmental Protection Paul TeNyenhuis, Suffolk County Soil & Water Conservation District Robert Waters, Suffolk County Department of Health Services (SCDHS) Ray Whittemore, Ducks Unlimited Thomas Williams, President, Post-Morrow Foundation and Cornell Cooperative Extension Ron Verbarg, Suffolk County Planning Commission Tony Leung, New York State Department of Environmental Conservation
IEpsw iv & \C-B.PLA’’G. LLC Beaver Dam Creek Watershed Management Plan Final Report
Beilport High School’s Students for Environmental Quality (SEQ) Carolina Calderon Romina Calderon Danielle Christensen Jamie Cunningham SamanthaFreedman Steve Gazzola Dma Milano Brittany Miller FrancescoNunez Rebecca Ronstadt Aubrey Russo Gee Toronto Kayla Zimering
Nelson. Pope & Voorhis, LLC Charles Voorhis, Principal Carrie O’Farrell, Project Manager Sara N. da Silva, Environmental Scientist Lara Pomi-Urbat, Environmental Analyst
IEPSW rEL. E & V-$ LLC EIADtNTL • PLl’ING . COLTr Beaver Dam Creek Watershed Management Plan Final Report
EXECUTWE SUMMARY
This Watershed Management Plan (WMP) focuses on Beaver Dam Creek in the Town of Brookhaven, Suffolk County, New York. Beaver Dam Creek is a priority tributary which flows into Great South Bay and is included within the Long Island South Shore Estuary Reserve (SSER) established by New York State in 1993. This document characterizes the natural resources, identifies known impairments, inventories existing land uses and open space, provides a comprehensive stormwater infrastructure inventory, determines critical stormwater runoff areas, recommends actions to prevent further degradation, as well as develops an implementation strategy to restore the watershed.
The specific goals of the WIvIPinclude: • Protecting and restoring natural resources. • Inventorying pollution sources and improving water quality. • Increasing public knowledge and understanding of the surrounding natural as well as cultural resources. • Promoting environmental stewardship. • Maintaining/promoting appropriate uses within the watershed.
It is clear that the leachate plume emanating from the Town of Brookhaven landfill is of utmost concern to the community. Specific remediation measures to address the plume are not within the scope of this document, as Town and County officials are specifically working with the Beaver Dam Creek Water Quality Group to assess the current status of the plume so that mitigation measures and a detailed plan of action can be devised. This WMP recognizes the plume as a serious threat to natural resources and public health and provides recommendations for continued efforts and coordination to monitor, track and mitigate the plume. However, a myriad of other pollutant sources and impairments also impact the watershed and are extensively addressed within this document to provide a holistic approach for achieving the goals of the Beaver Dam Creek Watershed Management Plan. Recommendations are consistent with the fmdings and recommendations of earlier studies, including the 1995 Brookhaven/Southaven
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• Pursuing resident involvement and incentive programs to reduce stormwater runoff generated from the individual properties (i.e., conversion of impervious surfaces to pervious paths and driveways, installation of rain gardens or rain tanks to collect roof runoff or the use of low profile infiltrator systems). • Reducing existing pavement at the terminus of Bay Road in close proximity to the water (i.e., replace unused concrete area with native plantings and four foot wide access path or evaluate feasibility of bioretention area installation to provide stormwater storage and treatment prior to overflows into the Bay. • Requiring installation of stormwater drainage improvements and consider conversion of existing impervious parking area to pervious pavement or gravel parking/storage areas during any future site plan or building department application for Beaver Dam Boat Marina to reduce runoff and improve stormwater recharge • Requiring the installation of stormwater retention for any newly proposed impervious surfaces. • Pursuing the purchase of existing vacant land for the creation of a recharge basin to redirect stormwater to recharge facilities and away from the tributary. • Reducing impervious surface area which contributes stormwater runoff to the tributary by educating and working with homeowners to consider pervious alternatives to paved areas and on-site stormwater recharge options (e.g. rain gardens, rainwater collection systems for reuse as irrigation, dry wells, etc.). • Remediation of the three temporary barriers--to-fish passage which occur within the tributary, specifically:
o Fish Barrier Crossing 50 - Replace the collapsed culvert below the LIRR to allow for unimpeded passage of fish and wildlife. o Fish Barrier Crossing 51 - Remove the short section of chain link fence which currently crosses through Beaver Dam Creek on the north side of the LTRR.
o Fish Barrier Crossing 46 — Remove log jam which is currently impeding fish passage near the vicinity of Beaverbrook Drive.
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SECTION 1.0
IEPSW PE_9 PC & VD-B. LLC • CDN.LTI Beaver Dam Creek Watershed Management Plan Final Report
1.0 lliTRODUCTION
1.1 Purpose
This Watershed Management Plan (WMP) identifies important resources within the Beaver Dam Creek watershed and recommends appropriate long-term management measures to maintain and improve the water quality and natural resources of this tributary within the South Shore Estuary Reserve (SSER). The SSER Comprehensive Management Plan (CMP) was completed in 2001 and aims to improve the Reserve’s water quality, restore its living resources, protect its rich maritime heritage, and expand its estuary-related economy. This document is consistent with the objectives of the SSER CMP, which identifies the Beaver Dam Creek watershed as a priority for restoration, and serves to advance its recommendations. Specifically, the SSER CMP identified the Beaver Dam Creek watershed as a priority for the following implementation measures:
• Constructionof stormwaterabatementprojects in significantnonpoint source contributing areas associated with closed shellfish beds, impaired living resources, and bathing beaches that experienceperiodicclosuresdueto water qualityconcerns(ImplementationAction 1-1). • Habitatrestorationin tributaries(ImplementationAction4-4). • Acquisitionof open space(ImplementationAction 5-5).
A watershed is an area of land which drains to a certain low point on the landscape, such as a stream, river or lake. Generally defined by topography, a watershed boundary will follow the highest elevations surrounding a waterbody. Beyond this boundary, a drop of water which falls on the ground will typically run off and drain to another watershed (unless it is infiltrated into the ground). Consequently, development activities and land uses within a watershed can greatly affect the volume as well as the quality of the water which flows over the landscape to a stream.
Beaver Dam Creek and its watershed are located on Long Island’s south shore and lie within the Town of Brookhaven, Suffolk County, New York. This tributary empties into Beliport Bay, which is within the Great South Bay portion of the SSER. The tributary’s watershed and the watercourse itself are important natural and ecological resource features of the surrounding area.
Page 1-1 Beaver Dam Creek Watershed Management Plan Final Report
Management of these resources is critical to maintaining the environmental integrity of Beaver Dam Creek and Great South Bay.
The Brookhaven./Southaven Hamlet Study (Koppelman, 1995) encompasses the majority of the watershed study area and provides several recommendations pertaining to the protection of Beaver Dam Creek through preservation of open space, zoning recommendations and stormwater runoff controls. While many of the recommendations in the Hamlet Study have already been undertaken (i.e. acquisition of key parcels such as Lohmann’s Farm, which is also known as Deer Run Farm), this WMP incorporates many of the additional recommendations of the Hamlet Study that would further aid preservation of natural resources.
Since 2001, the Town of Brookhaven has been active in implementing stormwater abatement projects, as well as restoring tidal wetlands habitat with the aid of the Beaver Dam Creek Task Force. Additionally, the Town, Suffolk County, and the Post-Morrow Foundation have been instrumental in acquiring extensive acreages of land within the Beaver Dam Creek watershed for preservation.
NP&V recently completed an Inventory and Analysis of Barriers to Fish Passage for Six Long island South Shore Estuary Reserve Tributaries (NP&V, 2008). The historic documentation of spawning runs and existing quality of natural habitat within Beaver Dam Creek led to its inclusion within this barrier assessment due to its potential for habitat restoration through fish passage improvements. Although there are no dams present on this tributary, a total of 14 crossings were identified during field investigations, 3 of which present temporary barriers to fish passage. Therefore, this WMP serves to incorporate the recommendations of the fish barrier report to remove the encountered barriers within Beaver Dam Creek.
The WMP will aid the implementation of goals from the SSER CMP and provide a basis for future decisions regarding land use and environmental resource protection within the watershed. It will also provide a foundation on which to monitor the progress of water quality and habitat restoration initiatives within Beaver Dam Creek.
Page 1-2 r’L5Q PE VD-S LLC ENVIP,Q’$vT’43AL • Pt.ofl.UNQ • CONSLJ.fltC Beaver Dam Creek Watershed Management Plan Final Report
1.2 Goals and Objectives
The primary goals of this WMP are to characterize the resources of Beaver Dam Creek in order to facilitate recommendations toward restoration of resources and implementation of improved protection measures for the Beaver Dam Creek watershed. Specific goals and objectives for the Beaver Dam Creek watershed are divided into four categories, as follows:
U Natural Resource Goals • Ensure protection of tidal and coastal freshwater wetlands for the benefits of water quality improvement, wildlife and diadromous fish habitat, marine food production, flood and storm control, open space and educational opportunities. • Restore wetland areas and wetland productivity where possible and appropriate.
• Identif’ and protect important natural resources within the watershed.
— Water Quality Goals • Improve water quality through the identification, control and mitigation of nonpoint source pollution. • Inventory pollution sources and causes and examine remedial actions.
U Educational Goals • Promote environmental stewardship to increase awareness of watershed resources by partnering with existing organizations and watershed residents to implement stewardship activities, programs and outreach efforts. • Encourage and promote an understanding and appreciation of maritime historic uses and cultural resources (i.e. establish a historic trail and provide signage at key locations that tells a story about the historic boat building industry, interesting past residents, historic events, previous configuration of the tributary, etc.) • Encourage and promote an understanding and appreciation of natural environmental resources and habitats of the Beaver Dam Creek watershed. • Improve water quality education by informing watershed residents and businesses of common activities that cause water quality degradation and solutions to mitigate and eliminate impacts.
Page 1-3 Beaver Dam Creek Watershed Management Plan Final Report
• Use Management Goals • Maintain, and expand where appropriate, public water access. • Maintain and promote appropriate water-dependent land use. • Improve and promote passive recreational and educational opportunities. • Encourage appropriate land use that is sensitive to the natural resources of the creek.
Page 1-4
F’Ei PDE VDHB LLC EN,Nr.1 • PW’tNQ . Beaver Dani Creek Watershed Management Plan Final Report
SECTION 2.0
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2.0 WATERSHED CHARACTERIZATION
This characterization of the Beaver Dam Creek watershed examines existing features and conditions including topography, soils, groundwater and surface water resources, upland and wetland habitat resources, known habitat impairments, land use and zoning, public access, recreation and open space areas, cultural resources and a comprehensive stormwater inventory.
2.1 Watershed Study Area
Beaver Dam Creek flows from north to south, emptying into Beliport Bay. The tributary is approximately 2.5 miles long and contains both a tidal segment below Beaver Dam Road, as well as a groundwater-fed freshwater portion that begins as far north as Sunrise Highway. The actual start of flow within the freshwater portion fluctuates from year to year with water table elevation, and can vary from the area immediately south of Sunrise Highway (Rt. 27) to Montauk Highway (Rt. 80). An aerial view of the watershed study area boundary is illustrated within Figure 1-1.
The watershed study area boundary for Beaver Dam Creek totals approximately 1,400 square acres within the Town of Brookhaven and is the area of overland surface flow from which stormwater runoff flows toward the tributary, contributing to its flow and water quality characteristics. The surface runoff area was delineated by the Suffolk County Soil & Water Conservation District (SWCD) using 2-foot topographic contours and then the contributing areas were field-truthed to account for field conditions and observed drainage infrastructure (McMahon, 2003). This boundary was used by Suffolk County Department of Health Services (SCDHS) in their water quality report for Beaver Dam Creek (SCDBS, 2008). The watershed boundary is defined as follows:
Beginningeast of the Town of Brookhavenlandfill, approximately2,500 feet north of Sunrise Highway at Horse Block Road, heading south approximately 500 feet west of Yaphank Avenue to Sunrise Highway, heading in an easterly direction along Sunrise Highway for approximately 1,000 feet before heading south along the west side of YaphankAvenue for approximately4,000 feet, before heading in a southeast direction Page 2-2
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The topography forming the watershed for Beaver Dam Creek is a glacial meitwater feature. Glacial advance during the Pleistocene Epoch resulted in the deposition of terminal moraines associated with the ridge in the center of the Island (Ronkonkoma Terminal Moraine) and the bluffs on Long Island’s north shore (Harbor Hill Terminal Moraine). During glacial retreat, the meltwater from the glaciers formed meitwater swales resulting in river systems and topographic swales through the glacial outwash plain deposits south of the terminal moraine (see graphic below). This geologic origin formed the swale now occupied by Beaver Dam Creek. Terminal Moraines on Long Island J_ J_ __J__ .— —I- —, — — ______._—i------____._____ —— — — - —‘Z Long Island Sound - - — -
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The watershed itself is an area of land surrounding Beaver Dam Creek from which stormwater runoff on the landscape will flow by gravity to the tributary. The watershed boundary generally follows the highest elevations surrounding Beaver Dam Creek. Development activities and land uses within the watershed can greatly affect the volume as well as the quality of the water which flows over the landscape. The quality of groundwater which recharges to the tributary can also be affected by land uses within a watershed. Defming the surface water and groundwater contributing area and establishing appropriate land use practice is critical in ensuring the long- term improvement of Beaver Dam Creek.
Page 2-5 h = & VHS LLC ,RaKTSrrA1. • CQ&.LflNC Beaver Dam Creek Watershed Management Plan Final Report
The topography of the watershed area, as depicted in Figure 2-1 generally slopes from a northerly to southerly direction, with a maximum elevation of ±80 feet above sea level (asl). A greater amount of drainage to the creek occurs on the western bank, which has a greater variation in relief than the eastern bank.
2.2.2 Soils
The USDA Soil Survey of Suffolk County, New York (Warner et al., 1975) provides a complete categorization, mapping and description of soil types found in Suffolk County. Soils are classified by similar characteristics and depositional history into soil series, which are in turn grouped into associations. These classifications are based on profiles of the surface soils down to the parent material, which is little changed by leaching or the action of plant roots. An understanding of soil character is important in environmental planning as it aids in determining vegetation type, slope, engineering properties and land use limitations. These descriptions are general, however, and soils can vary greatly within an area, particularly soils of glacial origin. The slope identifiers named in this subsection are generalized based upon regional soil types.
Generally, the soils located within the Beaver Dam Creek watershed, as depicted in Figure 2-2, consist of Riverhead Sandy Loams (RdA, RdB, RhB, RhC), which are generally characterized as deep, nearly level to gently sloping, well-drained and moderately course textured. These soils are located primarily on the southern outwash plain. Other soils within the watershed include cut and fill land, Haven soils (HaA), Deerfield sand (De), Muck (Mc), Fill land dredged material (Fd), Carver soils (CpA, CpC), Plymouth soils (NA, P1B, PlC), Sudbury soils (Su), Wareham soils (We), and Tidal Marsh (Tm).
2.3 Water Resources
The hydrology of the watershed is characterized by surface hydrology, flood zones, groundwater flow and water supply.
Page 2-6
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the 2.3.1 Beaver Dam Creek Watershed Management Plan Final Report
Beaver Dam Creek and its watershed are not located in a Special Groundwater Protection Area. According to the Suffolk County Comprehensive Water Resources Management Plan (Dvirka and Barifiucci, 1986), the watershed is located within Groundwater Management Zone VI, which is characterized as “...a region of primarily horizontal flow, with upward flow and discharge at the shoreline.” Horizontal flow has the highest velocity in the Upper Glacial aquifer, and becomes progressively slower through the Magothy and Lloyd aquifers, respectively. Shallow groundwater, as distinguished by the Upper Glacial aquifer, is more susceptible to impacts from land use practices occurring on the lands overlying the water table, and as a result, may experience impacts and localized degraded water quality depending upon the land use. Deeper groundwater in the lower Upper Glacial and deeper Magothy and Lloyd aquifers, is generally of excellent quality except where degraded by migration of shallow contamination to deep aquifers over time, or by introduction of contaminants through injection conduits. Shallow groundwater entering the Beaver Dam Creek will have an effect on the water quality of the tributary.
Water Supply Public water is available from the local water purveyor, the Suffolk County Water Authority (SCWA) within the majority of the watershed and throughout all existing residential areas. Most private wells draw from the Upper Glacial aquifer, and as a result are more susceptible to contamination depending upon the quality of water recharged in the contributing area of the well. Public drinking water within the watershed is drawn from wells outside of the watershed. SCWA water mains delivering public water-are-illustrated in Figure 2-4. Although water mains are already provided, the Town and County have been identifying people within the path of the leachate plume from the nearby Town of Brookhaven landfill to verify whether or not they are already using water from the SCWA. Suffolk County Department of Health Services (SCDHS) has been sending representatives door-to-door to test drinking water wells, and those not receiving SCWA water will be given the chance to connect to public water free of charge if they are presently utilizing private water wells within the affected area. A plan is being devised to adopt SCDHS recommendations for addressing the plume, which includes increasing the sampling and monitoring network for tracking the plume. Approximately 70 of the previous monitoring wells have already been located and monitoring is proceeding. As of April 2009, 22 pw Page 2-8 VI— •
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wells with Beaver Dam Creek Watershed Management Plan Final Report include vulnerability from category 2 to category 5 hurricanes. No SLOSH zones are identified north of the LIRR within the watershed.
Surface Water Quality Classifications The Federal Clean Water Act requires states to periodically assess and report on the quality of waters in their state. The NYS Department of Environmental Conservation’s (DEC) most recent Atlantic/Long Island Sound Basin Waterbody Inventory/Priority Waterbodies List (PWL) Report for the Long Island region was issued in April of 2002. This report includes an overall evaluation of water quality in the Atlantic/Long Island Sound Basin, as well as assessments for specific waterbody segments in the basin. The freshwater portion of Beaver Dam Creek (PWL #1701-0104; WIN #AO-GSB-178) was listed as unassessed. However, the tidal lower portion is listed along with the lower portion of nearby Motts Creek (PWL #1701-0324, located to the adjacent west) as an impacted segment within which recreation is known to be stressed (Appendix A). Pathogens are listed as the primary cause of impairment, with urban runoff, storm sewers and ‘other’ listed as sources. An update of water quality assessments for waters in this basin are scheduled to be conducted.
Currently, NYSDEC classifies the tidal portion of the creek as having SC water quality. Above Beaver Dam Road is the freshwater portion of the creek which is classified as C(TS). A water quality class of SC reflects marine waters that are best used for fishing, while a class of C(TS) is a higher classification which reflects freshwater suitable for both fishing and trout spawning. Table 2-2 provides a listing of NYSDEC surface water quality classifications and their descriptions.
Page 2-10
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diethyl ether, and 1,4- dichlorobenzene).
• Concentrations of nitrite+nitrate in the freshwater reaches of the tributary were frequently insignificant compared to ammonia levels, and on average lower than levels found in other area tributaries. This pattern may have been related to effects from the anoxic, reducing conditions present in the landfill plume, where ammonification (the conversion of organic nitrogen to ammonia) and denitrification (the reduction of nitrate to ammonia and nitrogen) are dominant processes.
• Despite the high concentrations of ammonia noted in the upper reaches of the tributary, results show that levels were significantly attenuated by the time they reached Great South Bay. This can probably be attributed to uptake by bacteria and algae as well as to dilution and nitrification processes.
• Results from numerous studies done on the effects of un-ionized ammonia on a variety of aquatic organisms suggest that the high levels found in Beaver Dam Creek may be acutely toxic, and lower levels possibly chronically toxic to many species.
• Despite the potential for toxicity posed by the levels of ammonia in the tributary, a 1996 electrofishing survey conducted by the NYSDEC in an area just downstream of South Country Road documented an abundant population of brook trout existing in the tributary. [A total of 26 brook trout were observed, as well as 9 eels and 2 Eastern mudminnows (Guthrie, 2008)].
• A survey of macroinvertebrates conducted in 2003 by the Stream Biomonitoring Unit of the NYSDEC, however, found a low level of biodiversity (poor species richness), and concluded that the tributary was moderately impacted, of poor water quality, and likely impacted by decomposable wastes.
• Of the 229 organic constituents that were tested for, 16 volatile organic compounds (VOCs) and 5 semi-volatile organic compounds (SVOCs) were detected in the tributary. The most commonly detected chemicals included MTBE, diethyl ether, chlorobenzene, 1,4-dichlorobenzene, DEET, ibuprofen, and bisphenol-A. Both groups of compounds have multiple potential sources, including road and land runoff, septic systems, boat discharges, point source spills/dumping, and the leachate plume from the Brookhaven landfill.
• With the exception of iron and zinc, and to a lesser extent, aluminum and lead, metal concentrations in Beaver Dam Creek were generally below NYSDEC standards for Class C waters [Table 2-2]. Levels of cadmium, copper, cobalt, and nickel were occasionally elevated above criteria, and concentrations of manganese, for which there is no applicable standard for Class C waters, were frequently elevated above standards for groundwater (Class GA) and other freshwaters (Class A & AA).
P1Y Page 2-14 h E & V-5 LLC BTftL • • cT Beaver Dam Creek Watershed Management Plan Final Report
Additionally, the USDA Natural Resources Conservation Service has helped develop a comprehensive conservation plan, as per the NYS Agricultural Environmental Management Program (AEM) planning guidelines, for Deer Run Farm (formerly Lobman’s Farm), a 33-acre vegetable farm bordering the west side of Beaver Dam Creek that grows lettuce, spinach and cabbage. The plan identifies conservation practices necessary to improve soil quality, reduce and filter runoff, and protect groundwater. In 2003, the SWCD implemented a stormwater remediation project to curtail erosion from the farm into the tributary, and an eroded swale has since been stabilized with vegetation.
2.4 Natural Resources
Natural resources within the Beaver Dam Creek watershed include upland as well as freshwater and tidal wetland habitats, other aquatic resources and special resource management areas. Each of these is further examined below.
2.4.1 Upland, Freshwater and Tidal Wetland Habitats
The overall watershed includes a variety of habitats from “built” environment, to forest and other upland vegetated areas, to freshwater and tidal wetlands. Retention of natural area through land preservation and careful management of land use activities is critical to maintaining and improving the water quality and natural resource characteristics of the watershed. Upland habitats are evident in aerial photography included in Figure 1-1.
Of critical importance are the identification, protection and improvement of wetlands due to their beneficial qualities in terms of habitat, productivity, pollutant attenuation, shoreline protection and overall environmental sensitivity and benefit. Freshwater and tidal wetlands are illustrated in Figure 2-7. Two specific NYSDEC regulated freshwater wetlands within the watershed include wetlands #B-5 and #B-9. Wetland #B-5 is considered a Class 1 freshwater wetland, which is the most highly regulated, while #B-9 is a Class 2 wetland that is less restrictive in regulations.
Page 2-15
I’EI_S ‘E VI-hS LLC • • CTG Beaver Dam Creek Watershed Management Plan Final Report
All NYSDEC-regulated tidal wetlands within the watershed study area are located south of Beaver Dam Road. Tidal wetland classes within the watershed include intertidal marsh, coastal shoals, bars and mudfiats, the littoral zone, fresh marsh, formerly connected marsh and dredge spoil areas. High marsh wetlands extend the farthest north.
2.4.2 Aquatic Resources
Aquatic resources along Beaver Dam Creek (Figure 2-8) include waterfowl focus areas, State- designated Significant Coastal Fish and Wildlife Habitats, shellfish areas and finfish. Waterfowl focus areas extend through much of the southern portion of the watershed, ending just north of Beaver Dam Road. Significant Coastal Fish and Wildlife Habitats have a similar distribution, with the designated tidal wetland area ending just south of Beaver Dam Road. Salmonids and alewives have been known to occur along the entire length of the tributary (USFWS, 2005). Electrofishing data from 1996 recorded abundant brook trout (26 observed), but small numbers of American eel and Eastern mudminnow (9 and 2, respectively) within freshwater portions of the tributary. However, the water quality within the freshwater portion of Beaver Dam Creek is currently degraded and not capable of supporting salmonid or alewife populations. The NYSDEC has scheduled another electrofishing survey for 2009.
The 1.1 mile tidal portion of the tributary, up to the Beaver Dam Road bridge, received the designation of a Significant Coastal Fish and Wildlife Habitat due to its fish and wildlife values, which include relatively undeveloped tidal channels bordered by substantial tidal marshlands, and concentrations of sea-run brown trout which support an autumn recreational fishery of county-level significance.
2.4.3 Known Habitat Impairments
Beaver Dam Creek has areas of shellfish closure, as well as three identified barriers to fish passage. Shellfish areas located within the watershed, as depicted in Figure 2-9, are currently closed all year. Areas just south of the watershed study area are considered seasonal shellfish areas. pw Page 2-16 ‘ES PE & ‘d-S LLC Pu tG • coN_rNQ
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Creek which have not been developed should specifically be targeted for preservation due to their location within the watershed, which makes them important in the preservation of ecological resources.
2.4.5 Current Habitat Protection and Land Management
Currently, all wetlands along the tributary are protected by NYSDEC Article 24 (Freshwater Wetlands Act) and Article 25 (Tidal Wetlands Act) laws, the Town of Brookhaven’s Town Code Chapter 81: Wetlands and Waterways, as well as federally under Section 404 of the Clean Water Act. More specifically, lands owned by the State, such as the wetlands along the southern portion of the tributary, are managed and maintained by the State. Lands acquired and designated as open space by the Town of Brookhaven are also maintained and managed by the Town, and are intended to be left natural.
Development and land uses within the watershed are regulated in accordance with the Code of the Town of Brookhaven. Additionally, the Brookhaven Village Association (BVA) also provides comments on any proposed development in accordance with the BVA’s adopted Zoning and Development Policy. This policy aims to preserve wetlands and retain the local character of the historic district through the use of the following four guiding principles: Wetlands. No development should take place on wetlands, either construction of buildings or any kind offill. Existing filled wetlands should be restored. State and Town wetland laws should be strictly enforced particularly provisions pertaining to setbacks from wetlands. Furthermore, jfproposed developments contain wetlands, these wetlands should not be included in yield calculation and no wetlands should be destroyed in exchange for the creation of other wetlands.
• Agricultural property. The BVA encourages the continuation of agricultural use of farmland within the Hamlet. We would like to encourage farmers who have decided to sell or develop their land to first meet with groups such as the Peconic Land Trust who can council farm owners on ways to preserve open land while still having the same
economic results. We also encourage farmers to look into Suffolk County Farm Preservation program, in which they could sell development rights to the County, • Trees. Strict adherence to the Brookhaven Town Tree Law, which requires a permit to
Page 2-18
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As The Beaver Dam Creek Watershed Management Plan Final Report dockage of approximately 39 boats and is affiliated with prior shipbuilding at this location. The Basin is operated by the Carmans River Maritime Center, which leases out spaces to local residents, and which utilizes earth-friendly marina best management practices. With the assistance of the Foundation, the Basin was recently renovated with a new low sill bulkhead and creation of an associated low marsh wetland area beneath the boardwalk on the south side of the marina.
The Foundation has strived to educate residents about the natural resources of the tributary, as well as impacts of pet waste on stormwater entering the tributary. Post-Morrow has maintained pet waste disposal buckets with a supply of bags at the entrances to several of their properties to make it convenient for residents to pick up after their pets when utilizing these properties, and included this information in their quarterly newsletter. Most recently, the Post-Morrow Foundation and the local Brookhaven Village Association have also been instrumental in getting the Town of Brookhaven to renew their efforts to relocate and monitor testing wells for the tracking of the leachate plume from the nearby Town landfill.
Several of the cells at the adjacent Town landfill have been closed and capped, which should prevent further contamination of groundwater from these cells. Cells 5 and 6 are lined but not capped and continue to operate. These two cells have been accepting constructionldemolition waste and incinerator ash. The leachate that results from rainfall penetrating through the waste is currently pumped off and disposed off site. It is believed that a past liner failure or prior overtopping of the liner caused leachate to enter groundwater, resulting in an extensive plume of contaminated leachate from the landfill (Dermody, 2009).
In 1990, the Long Island Regional Planning Board prepared the Evaluation of Land Use Impacts on Environmental Quality in Urban and Semi-rural Streams Tributaiy to Great South Bay, Long Island New Yorkwhich identified the protection and restoration needs of Beaver Dam Creek. In 1996, a stormwater inventory of the south shore area was prepared for the Town of Brookhaven by Charles Voorhis & Associates (CVA) and identified numerous stormwater discharge points into the tributary. Many of these discharge points were from the Bellhaven Community in the southwest corner of the watershed.
Page 2-20
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Construction Site Runoff Control, Post-Construction Runoff Control, and Pollution Prevention/Good Housekeeping), for which each municipality must address and report progress achieved concerning each of these measures on an annual basis. As per the Town’s 2008 Annual Stormwater Management Plan, significant progress regarding each of these measures continues to be made. Implemented actions for each measure include: Public Education and Outreach o Environmental Education Program. Continuance of successful environmental education program at the Town of Brookhaven Nature Center, and proposed development/implementation of program effectiveness assessment tools. Stewardship brochures developedldistributed to educate students on stonuwater best management practices. o Maintain and update of a stormwater display. A nonpoint source pollution stormwater display is prominently featured at the Town of Brookhaven Ecology Center and the Town Nature Center. o Feature stormwater information in the Town Environmental Newsletter. The “Green Gazette” is mailed to all Town of Brookhaven residents, schools and libraries to keep citizens informed on the Town’s environmental policies and initiatives. o Development of brochures and outreach materials. “Your Forge River Watershed” is a nonpoint source pollution guide targeted for residents of the Forge River. The brochure was completed and mailed to all residences within the watershed as an insert within the Summer 2008 Green Gazette. An environmental stewardship brochure with a stormwater emphasis was also disturbed to visitors of the Town’s Nature Center in 2007. o Development of watershed signage. Signs instructing residents to clean up after pets, not feed waterfowl, and limit fertilize use were designed and presented to Forge River advisory committee for comment and ultimate posting at watershed boundaries. o Mt. Sinai Natural History Tour. Completed in May 2008, this project included creation of a brochure and interpretive signage that included information on the importance of stormwater management (supported by DOS grant). Public Participation/Involvement o Annual report and hearing. Report presented at public hearing and posted on Town’s Stormwater Management web page. o Beach and shore cleanups. “Great Brookhaven Cleanup” — a town-wide litter collection effort coordinated by a citizen-based Anti-Litter Task Force. Other clean-ups occur throughout summer months. o Forge River Watershed Task Force. Meets monthly to consider BMPs and education/outreach materials for implementation; will assist in development of comprehensive Watershed Management Plan and initiation of nitrogen TMDL. Nonpoint source guide brochure was designed and scheduled to be mailed to residents in 2008. o Conservation Advisory Committee (CAC). Identifies erosion and stormwater management projects and applies for grants to conduct stormwater infrastructure improvements. filicit Discharae Detection and Elimination (IDDE) o illicit Discharge Detection in remaining areas of the Town. Continued IDDE in remaining areas of Town (through contract with Cornell Cooperative Extension), with results entered into Town’s GIS for use in devising a strategy to addressing the problem. o Address non-stormwater discharges in remaining areas of Town. Strategy will include education, outreach and appropriate enforcement of its recently adopted Illicit Discharge ordinance. Page 2-23 hrL ROPE & VDOP9 LLC ‘N1O’t.1ENTAL • • LT1l’G Beaver Dam Creek Watershed Management Plan Final Report
o Invento,y and map ouzfall in the un-inventoried areas of the Town. Comprehensive mapping of locations substantially complete. Continued gathering of attribute infonnation for all Town stormwater infrastructure. o Illicit Discharge Reporting and Response Program. Education and training of public employees (with assistance from Cornell Cooperative Extension) for Town of Brookhaven and 6 adjoining villages concerning establishment of responsibilities and lines of communication for responses to ID reports, as well as development of a web page to educate public on ID and how to report them. ID contact person is Town’s Stormwater Manager. Construction Site Stormwater Runoff Control o SWPPP Procedures. Adoption of Chapter 86 (Erosion and Sediment Control Law) to Town Code to regulate construction that disturbs greater than one acre of property and conforms to the Erosion and Sediment Control Model Ordinance. A Town Storm Water Pollution Prevention Plan (SWPPP) Guidance Document was prepared in March 2008 and Town’s consultant contracted for review of SWPPP’s submitted to the Town. Commissioner of Planning is vested with authority to establishJmodif’ SWPPP procedures following evaluation of program effectiveness. o Private sector review. LI Builders Institute aided in review of SWPPP exemption criteria (non-impact upon surface waters). o Public review of plans. All commercial site plans and subdivisions are logged and made available to public at planning counter. Verification required from applicant concerning initiation of contact with appropriate local civic organization, and public hearings for all applications requiring Planning or Town Board approval. o Training of construction site operators. Scheduled to commence in November 2008. Post-Construction Stormwater Management o Revise post-construction stormwater management controls/practices/ enforcement. Review and subsequent revisions, as necessary, to occur one year from full implementation of SWPPP review procedures (anticipated in September 2009). Review/revisions/enforcement to follow procedures outlined in Town’s SWPPP Guidance Document. o Site Plan Review, Preparations for SWPPP s. Familiarization of Town engineering and drainage review staff with DEC Stormwater Management Design Manual and SWPPP flow chart; tracking of all submitted SWPPPs within GIS database. Pollution Prevention/Good Housekeeping o Pollution prevention priorities set by Inter-Departmental Stormwater Management Committee (JDSMC). Monthly meetings to develop policy, coordinate and track stormwater mitigation projects that specifically address sediment, fertilizers and pesticides. o Stormwater calendar. To track all stormwater-related meetings, seminars, training, and all target deadlines referenced in annual stormwater reports. o Dog Waste Ordinance Development. Approval of “Pooper Scooper” Law in September 2008. o Information gathering, LIDAR. Town-wide acquisition of LIDAR topographic information to enable more accurate delineation of contributing storm-sewer-sheds, particularly for impaired and TMDL water bodies. o Highway Yard and Parks Department Audits and Training. Yard operations and maintenance facilities to be audited to determine shortcomings and management/staff to be trained in implementation of BMPs that address shortcomings. o Street sweeping and catch basin maintenance. Annual street sweeping of all Town roads at least once, plus additional as-needed (often driven by resident complaints). Catch basin cleaning/maintenance, and sweeping of municipal parking facilities on an Pf1T Page 2-24 hF1B cFE C LLC 1s.rAL. i-S . Beaver Dam Creek Watershed Management Plan Final Report
as-needed basis. GIS-based tracking system for current maintenance operations currently being developed to aid in future proactive planning and prioritization of maintenance, especially for impaired watershed areas. o Town-wide Constituent Response System (CRS). The system was implemented in 2007 to log constituent calls and track Town responses in a database. This system can also be used to track Highway Department infrastructure maintenance operations, but baseline information for current highway operations still need to be reported and summarized. o Salt spreading operations. Annual inspection of salt spreaders and training of operators to calibrate spreaders so as to minimize de-icing materials. All Town salt storage facilities are covered. o Catch Basin installations. Continued installation/use of leaching catch basins, most of which are installed in response to flooding issues, but also in response to watershed plan or Conservation Advisory Committee recommendations. o Street sweeping and catch basin cleaning equzpment. Street sweepers operate continuously (weather permitting) and catch basin maintenance occurs continuously. Town owned 19 sweepers in 2007, and proposed to order an additional 8-10 sweepers in 2008. The Town contracts for 4 vendor operated vacuum trucks and two Town operated vacuum trucks. Additionally, 7 clam shell bucket machines are used. o Inventory of Town-owned parks. Completed in January 2007 (272 in total). An RFP for assessment of pollutant reduction and landscaping BMPs is proposed. o Dog park facility. First Town dog park has been opened, requires owners to collect and dispose of dog waste, and may divert substantial amount of dog waste from town roadways. o Road end inventory. Completed in 2007 and identified 90 Town road ends that terminate at surface waters. Road end assessment was proposed for 2008, including departmental jurisdiction, water body status, watershed management status, and preliminary evaluation of nutrient loadings and erosion potential. o Parks Department Operations Manual. Completed in 2006 and follow-up auditing/training was planned for 2008, as indicated above. o Integrated Pest Management. A very limited amount of pesticides are used by the Town and are applied by a certified contractor using 1PM protocol. Baseline quantities should be reported for annual assessment.
Ducks Unlimited, Post-Morrow Foundation, U.S. Fish & Wildlife Service and several other partners have worked with volunteers and collaborated on tidal marsh habitat restoration projects within Beaver Dam Creek involving the control of the invasive Phragmites australis and planting of native salt marsh plants. Ducks Unlimited has coordinated the previous habitat restoration work on the east side of the tributary, which has been planned out in four phases. The first phase of the project, completed in the summer of 2003, removed most of the dredge spoil from an approximately 10-acre area. The second phase of the project, conducted in the winter of 2004, involved the partial removal of the dike along the east side of the tributary, control of common reed (Phragmites), removal of the remaining dredge spoil, and final grading of the site. The site was subsequently planted with native salt marsh grasses and shrubs in May-June 2004.
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PE & LLC V-- . Beaver Dam Creek Watershed Management Plan Final Report
These restoration efforts were funded through a $40,000 Community-based Restoration Program grant from the National Oceanic and Atmospheric Administration; a $9,000 contribution from the Post-Morrow Foundation; two Clean Water/Clean Air Bond Act grants to the Town of Brookhaven, totaling $220,000, and an equal amount of Town matching funds; a $10,000 award from the US Fish and Wildlife Service Partners for Fish and Wildlife; and in-kind services contributed by Ducks Unlimited, the US Fish and Wildlife Service, and the Town of Brookhaven. Additional restoration activities to complete the remaining phases of earlier restoration work are currently being planned for implementation.
Further habitat restoration work is planned on the west side of the tributary just below Deer Run Farm, specifically on a Post-Morrow-owned tax parcel (#0200-978.3-01-3) and a portion of the adjacent County-owned Dennis Puleston Nature Preserve. Phragmites and former dredge spoils are proposed to be removed from this property to lower the elevation of the site and promote the establishment of marsh vegetation. These restoration efforts are proposed to be funded through a $285,000 grant from NYS Department of State’s Environmental Protection Fund, and $85,000 from Suffolk County’s quarter-percent sales tax. However, additional matching funds are committed from the County.
With the aid of NY Sea Grant and Ducks Unlimited, Cornell Cooperative Extension has authored and produced two pamphlets to further educate residents regarding restoration activities and how individuals can help save the tributary, “Beaver Dam Creek Restoration Project” and “Help Protect Beaver Dam Creek.” Further information and collaborative public education materials can be accessed at http://counties.cce.cornell.edulsuffolk/Programs/MARhome.htm
Students for Environmental Quality (SEQ) is a student club organization at Bellport High School which lends a hand to environmental causes within the community. Over the years, SEQ has conducted environmental studies on Beaver Dam Creek, as well as participated in the Beaver Dam Creek WIvIP by assisting NP&V with verification of the location of previously mapped storrnwater infrastructure, as well as locating additional visible catch basins, discharge pipes and problematic runoff areas for the watershed’s stormwater inventory and associated mapping. SEQ will be participating in their third year of the alewife fish survey for the SSER and monitoring Beaver Dam Creek for the return of spawning alewife. Page 2-26
LLC LPG • CJ11P Beaver Dam Creek Watershed Management Plan Final Report
2.5 Land Use
Land use within the watershed is characterized by the predominant existing uses, impervious cover and significant features within the watershed. Land use is a major factor influencing the quantity and type of pollutants that enter a watershed from runoff and recharge. Detailed identification of current land use is important as a basis for input of pollutant load values for the purpose of modeling pollutant loads within the watershed.
2.5.1 Land Uses and Zoning
As illustrated in Fignr 2-12, ten major land use categories were identified within the Beaver Dam Creek Watershed area, and are categorized as follows:
• Aicultural • Residential • Vacant • Commercial • Institutional • Industrial • Transportation • Utilities • WasteHandlingand Management • Parks,Open Spaceand ConservationAreas
Most of the watershed is comprised of residential and vacant uses. Parks, open space, and conservation areas, as well as institutional uses also comprise a large portion of the current land use.
As determined from land use data provided by the Town of Brookhaven and supplemented by NP&V, parks, open space and conservation areas comprise the largest land use category within
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Several parcels are owned by the Post-Morrow Foundation with the intent of preservation of open space. The locations of these parcels, which encompass several areas along the tributary, are illustrated in Figure 2-11.
In general, several areas encompassed by these preserved open space areas are also popular fishing areas. Other recreational resources are provided just beyond the watershed, such as the Martha Avenue Recreational Park and Wertheim National Wildlife Refuge. Two marinas presently existing within the watershed and provide for boating activities. The Beaver Dam Boat Marina is located on the south side of South Country Road and the western bank of the tributary. Fireplace Boat Basin (sometimes referred to as Gould’s Marina), is owned by the Post-Morrow Foundation and located on the eastern bank of Beaver Dam Creek at the terminus of Fireplace Lane.
2.5.3 Cultural Resources
Valued features and critical areas were considered by consulting maps provided by the New York State Office of Parks, Recreation and Historic Preservation (OPRHP) as well as publications regarding local cultural resources.
Brookhaven Hamlet, formerly known as Fire Place, was designated an Historic District by Brookhaven Town in 1985. The Hamlet lies entirely within the Town-defined Critical Environmental Area and is the largest historic district in Brookhaven Town. An extensive history of the area is documented within the Brookhaven/Southaven Hamlet Study (Koppelman, 1995) and is available on the Hamlet’s website: http://brookhavensouthhaven.org/. The Hamlet Study distinguishes the key historic area (see Figure 1-2) as extending from the south side of Bellport High School, northeast along South Country Road to the railroad and Little Neck Creek, south along the Carmans River to Great South Bay, and west along Woodland Avenue up to Beaverdam Road across from VID Industries. OPRHP maps further indicate that the entire tributary and its watershed are within an archaeologically sensitive area.
Page 2-29
PE VHS LLC • pLMtrG • cs,LflNG Beaver Dam Creek Watershed Management Plan Final Report
Local cultural resources along Great South Bay and Beaver Dam Creek include both historic buildings and a rich fishing and boating history. The southern portion of the tributary and watershed is located within the Fire Place Historic District, which was designated by the Town of Brookhaven in 1986. Generally, the Great South Bay area was commercially fished beginning in the midl9th century. Several houses of baymen and local fishermen still exist today, particularly along Beaver Dam Road.
The Brook Store, located on the north side of South Country Road, is an important historical feature located on the tributary. The store was constructed in 1805 and was a gathering place for residents in the area. The store was purchased in the late 1990’s by the Post-Morrow Foundation in hopes of having it put on the national register of historic places. The store was moved across the street to its present location. In its place, the Brook House was built, which was a restaurant in which one could catch trout and have it prepared immediately for one’s dinner.
At the junction of South Country Road and Fireplace Neck Road, Zimmer Park is another historical feature within the watershed. The park is located where the Miller Trout Ponds once stood before being filled in with debris from the old Bellport High School building after it burned down in 1963.
Page 2-30
pj VS- LLC B1TPL. PLMG • cct9ThG Beaver Dam Creek Watershed Management Plan Final Report
2.6 Stormwater Inventory
The inventory of the stormwater infrastructure includes data sets used to comprise the total inventory, as well as the methodology used. Additional data needs are also addressed.
2.6.1 Data Sets
Existing storrnwater infrastructure, including culverts, inlets, outfalls and recharge basins within the study area, has been compiled from previous watershed inventories (Charles Voorhis & Associates, 1996; SWCD, 2002) and updated in 2008 by Nelson, Pope & Voorhis with the help of Beliport High School’s Students for Environmental Quality (SEQ). SEQ was trained with GPS technology by Cornell Cooperative Extension to verify the locations of previously mapped stormwater infrastructure, as well as locate any additional visible catch basins, discharge pipes and problematic runoff areas. Town of Brookhaven DPW was then contacted to provide further information regarding the interconnectedness of stormwater infrastructure, and the recent implementation of several stormwater improvement projects. A stormwater infrastructure map for the study area is provided as Figure 2-14.
A Belihaven Community stormwater management plan was prepared by the Suffolk County SWCD for the Town of Brookhaven following the Town stormwater inventory prepared by Charles Voorhis & Associates (CVA) (1996) which identified numerous stormwater discharge points into the tributary from this area. The stormwater plan entailed a redesign of the stormwater management system at key discharge points bordering the tributary in this area. The Town of Brookhaven received a New York Clean Water/Clean Air Bond Act grant to apply toward implementation of the stormwater recommendations, which were scheduled to begin spring 2003. Subsequently, several of the stormwater remediation projects recommended in the management plan have since been implemented.
Page 2-31 hFON p17E & LLC Ef’VRcf.t.SJTAL. • CDNBLLTThG
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North of the railroad tracks, two inlets were identified along South Country Road, one of which was confirmed to be a 12” stormwater pipe. No further inlets or outfalls are identified north of this location.
Catch basins are generally concentrated within the southern portion and the northeastern portion of the watershed. In total, 125 catch basins were identified within the watershed. Of these, 34 are in need of cleaning andlor maintenance, and only 19 appear to be piped to an outfall which would drain directly into the tributary. The remaining catch basins seem to directly discharge to the immediate area, or are piped to a recharge basin. Three recharge basins were identified within the watershed, and each are associated with a housing development. Approximately 11 catch basins appear to be piped directly to one of the three recharge basins.
Areas of overland flow were determined by identifying points in which there are no structures which discharge water to the tributary, but direct drainage to the tributary is obvious. Five of these areas were identified within the watershed. The first area is located at the terminus of Bay Road. 0F2 is at the end of the erosional feature located on the Post-Morrow acquired property. 0F3 is an area which crosses Bay Road and drains to a ponded area on the west side of Bay Road. OF4 consists of runoff associated with the bridge which crosses the tributary on Beaverdam Road. 0F5 consists of runoff which drains directly to the tributary from the Memorial Triangle at Zimmer Park.
Several culverts were identified by NP&V and SWCD along the tributary, which allow the river to flow without impedance. These culverts are illustrated in Figure 2-10.
A pumpout facility is located at Beaver Darn Boat Marina. Four Brookhaven pumpout boats also service the area, as well as one floating restroom.
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waterbodies.
of
contributing
roadways, and
the
lower
along
leads
groundwater
pollutant
areas
from
of
Beaver
ultimately
creek
courses
from
phosphorus
underlying
farmland,
waterways
the
systems
should
depending
forms
areas,
hydrocarbons
within
the
adjacent
that
golf
which
and
It
the
within
of
waste
further
to
local
buildings,
tilled
capable
as
vary
and
into
nitrogen
within
septic
conducted.
stormwater
into
life.
developed
algae,
various
into
be
in
fecal
are
surfaces
lots,
with
and
of
systems
well
nitrogen
also
all
of
residential
parks
levels
of
adjacent
as
surface
of
document,
also
sanitary
aquatic
use
should
absorbed
than
growth
areas,
concentrations
parking
areas
this
deposited
be
general,
drainage
land’s and
other
runoff
associated
transported
bacteria
impervious
of
as
phosphorus
on-site
presence
In
to
stormwater
the
tributary
as
higher
soil
surfaces
caimot
the
from
in
excessive
such
debris
groundwater
scope
the
surface
concentrations
residential
from
vehicles
roadside
such
commonly
elevated
have
to
the
to
to
and
harmful
groundwater
the
of
areas
Runoff
volumes.
results
into
be
from
exposed
also may
CLThG
higher
high floatable
LC
or
of
stormwater
impervious malfunctioning
depths can
are
within
promote
pollutants
Nutrients
discharge
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fertilizer
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or
runoff
runoff
and have
PLWW’G.
concentrations
and not
VS •
encountered
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areas within
&
water
of
and
more
developed
which
banks
Stormwater
carries may shallow
P
PF.1fI
parking/storage
use
from have
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surface
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as
groundwater
currently
systems
discharge Although
waterways. waterway
bacteria
with
Antiquated
stormwater
site lawn)
the
commercial
stormwater
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which
through
include
3.1.2 to
in
of
in 3-3
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also
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stormwater
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one
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acres
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of
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contribute
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loading
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than
stormwater
York
underlying
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to
portion
105
runoff,
to
wetlands
of
rainfall.
comprised
inventory
of
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less
of
tributary’s
stormwater
Creek
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tidal “Simple
levels
subwatershed
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directly
to
are
direct
portions
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method
habitats.
diminishes
north
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the
pollutant
from
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the
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siltation
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2008.
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and
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1
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source
in
as
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stormwater
presently
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dated
acre
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not
waterbodies
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highly storage wetlands.
Reach
portions
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4,
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of
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identified
recharge
process
information
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receiving
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its
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referenced
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and areas
and
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an
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overland
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wetlands)
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of
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and Creek.
were topographic
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woodlands
been
topography
inhibits
order
h
south Urban
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greatest has
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effectively However,
drainage
and
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outfalls
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water turbidity
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and
the
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load,
units
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pollutant
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utilized
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Management
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as
chemical
to
and
is
pollutant
of
2008), formula
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the
area,
Watershed
volume
of
result
The
volume
a
Creek
as
different
storage
(NYSDEC,
Darn percent
storage
contributing cover
90
slightly
Beaver
quality
the
Island)
pollutants
Manual
is
carry
calculate
contamination).
to
the
type,
water
Long
will
impervious
loads
subwatershed.
in
for
use
stormwater
event
utilized
each
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(bacterial
acre-feet)
land assumed
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for
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is
(in
an
pollutant
by
I
described (mg/I)
storm
as
(Ibs)
formula
factor
as
is
calculate
Number
the
upon
load
to
ranking
pollutants
where
volume
The
and
bacterial
(inches)
that
generated the
Event
follows:
based
acres
for
formulas,
as concentration
event.
quality
utilized
conversion
in
are
pollutant
runoff
0.009(1),
utilized,
is
runoff
biological
+
(acres)
are Rainfall
CONThG
area
estimates Unit
.
determine
water
These for
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=
rainfall factor
=
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to
Annual
site
Area
Pollutant
Annual
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V-S.
pollutants
*R*C*A
90% L
&
0.226
C
A
A
R
calculate
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WQ
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RE
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to
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RNTAL
L=
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Similar
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result
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utilizes
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the
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State
Report
Page
volume
Manual.
Manual.
(TP)
type
York
Final
within
use
quality
Management
Design
use
Design
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land
the
the
the
water
phosphorus
land
in
by
in
in
Watershed
the
total
used:
A.l
Creek
listed
resultant
was
(0.9)
upon
follows:
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as
(TSS),
coverages
Dam
Estimates,
and
as
is
runoff
from
use
based
formula
solids
Beaver
inches,
Cover
land
impervious
produce
45.2
the
obtained
calculation
following
is
calculated
that
suspended
Mean
this
upon
the
were
Impervious
Colonies)
area
was
for
total
events
and
based
(1,000/mi)
Manual.
(Billion
inches
(TN),
County
Use
utilized
coefficient,
rainfall
in
factor
load
concentrations
(inches) Land
(inches)
calculated
(inches)
Design
runoff
Suffolk
fraction
nitrogen
formula
annual
runoff
A.3,
then
the
of
concentration
coefficient
the
runoff
pollutant
total
The
rainfall
runoff
conversion
pollutant
(acres)
for
were for
•
annual Table
LLC
Unit
area.
Runoff
Impervious
Management
Fraction
Annual 0.91a
Rv
Annual Area
=
Annual
Pollutant Annual =
=
determine
median * = =
PAlG
+ loads = = =
= = from •
V-S
Ia
rainfall
cases,
to
R
L
Rv
Pj
103 Pj P
C
A
R
Coliform
* 0.05
E
Piw
P
both order
= IE
T’_4
Similarly,
Fecal
Pollutant
obtained
Annual
Stormwater
Where:
Rv
In
Where:
R
subwatershed
In Where: Beaver Dam Creek Watershed Management Plan Final Report for each of the nineteen subwatersheds. Resultant pollutant loads and ranks are illustrated in Table 3-1 below.
Overall, the analyses illustrate that subwatersheds 13 and 19 have the highest potential for impacts from nitrogen, total suspended solids, phosphorus and fecal coliform input. Total annual pollutant load from stormwater runoff within the watershed includes 574.83 pounds per year (lbs/yr) for nitrogen, 15,664.10 lbs/yr for total suspended solids, 74.73 lbs/yr for phosphorus and 196,484.85 billion colonies per year for fecal coliforrn. Based on these results, subwatershed areas were ranked in terms of most severe to least severe impacts based on the overall estimated stormwater pollutant load (N, TSS, P and F. Coliform) from a standard storm event which carries a 90% pollutant load, as calculated by the formula for WQ. Subwatershed 19 was estimated to contribute the highest pollutant load, and therefore received the highest rank of 1 for most severe impacts, while subwatershed 4 ranked as the lowest impact rank.
Page 3-6 h PE & LLC EAEI.rr • • CJTG
E,w=r,NrAL PtArJ1F.G •
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Page 3-7
Land
Use
Codes:
R
Residential
I
Institutional
=
P
L Park = C Lawn
Commercial U =
=
= Utility Rd Road A Agriculture = V Vacant = = =
Stormwater Feature
Codes: OF Overland Flow 0 Outfall = =
IBeaver
Dam I Creek
Drainage I Area
I Total I Annual Pollutant I Load Estimates 574.83 15,664.10 74.73 196,485
I
I
I I 19
IRJC/I/U/PIRdI
I I 0 130/74/38/50/0/1001
I
I 8.87
45.2 31.8 0.75 127.63 3,477.96 16.59 43,626 1
Reach 3- LIRR to the Northernmost Extent
of Watershed the
18
OF
LIRd 0.98 9/100 45.2 35.2 0.09 15.59 424.95 2.03 12 5,330
1
17
0
R/V/Rd 9.62 30/0/100 45.2 9.6 0.25 41.71 1,136.68 5.42 6 14,258
16
OF Rd
1.02
100 45.2 38.6 0.11 17.90 T 487.79 2.33 6,119 10
2 Reach
Beaverdam Road the to LIRR -
15
0
C 3.41 74 28.1 45.2 0.26 43.38 1,182.01 5.64 5 14,827
14
OF
R/P/Rd 0.95 30/0/100 28.1 45.2 0.07 12.06 328.68 1.57 16 4,123
13
OF
R/A/V 39.82 30/9/0 45.2 3.9 0.41 69.29 1,888.25 23,686 9.01 2
12
0
RJV/Rd 8.74 30/0/100 45.2 14.0 0.33 55.18 1,503.60 7.17 3 18,861
11
0
R/Rd 3.04 30/100 45.2 16.7 0.14 22.98 626.31 2.99 8 7,856
10
0
RJRd 2.07 30/100 45.2 14.0 0.08 13.04 355.23 1.69 4,456 14
9
0
R/Rd 2.66 30/100 45.2 13.9 0.10 16.70 455.05 2.17 5,708 11
8
0
R/Rd 0.93 30/100 45.2 13.1 0.03 5.50 149.97 0.72 18 1,881
7
0
R/Rd 1.04 30/100 13.3 45.2 0.04 6.26 170.66 0.81 17 2,141
6
0
RJRd 4.64 30/100 45.2 14.1 0.17 29.57 805.73 3.84 7 10,107
5
0
R/Rd 1.80 30/100 14.9 45.2 0.07 12.12 330.25 1.58 15 4,143
4
0 RJRd 0.19 30/100 45.2 31.9 0.02 2.68 72.90 0.35 19 914
3
0 R/Rd 3.03 30/100 14.5 45.2 0.12 19.82 2.58 540.16 9 6,776
2
0
RJVIRd 2.86 30/0/100 45.2 11.8 0.09 15.27 416.19 1.99 13 5,220
1
OF R/VIP
9.21 30/0/0 45.2 11.6 0.28 48.14 1,311.73 6.26 4 16,454
Reach 1
of Mouth o the Cree”
Beaverdam Read -
feet)
Code (Acres)
(ibs/yr)
Colonies/yr)
ID
(Percent) (inches) (inches) (acre-
(ibs/yr) (Ibs/yr)
Feature Code Area d
Solids
(BilliOn
watershed
Area Rainfall Runoff Volume
Nitrogen Phosphorus
Rank
Inlet Land
Use watershe
Suspended
Coliform
Sub-
Impervious Annual Annual Quality
Total
Total
Stormwater,
Sub- Total Fecal
Water
Pollutant Load Calculations Analysis & Estimates Loading
TABLE 3-1
Final Report
Beaver Dam Creek Watershed Management Plan
—J
LJ
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‘ -
‘-
LI —j
.
-
-
______
Beaver Dam Creek Watershed Management Plan Final Report
TABLE 3-2 Reach Summary of Pollutant Loading Estimates
Reach Totala Drainage Area 1 2 3 Total Total Nitrogen - - (Iha/vrl 371.99 75.21 127.63 574.83 Total Phosphorus (1bs/vr 48.36 9.78 16.59 74.73 Total Suspended Solids (lbs/yr 10,136.72 2,049.42 3,477.96 15,664.10 Fecal Coliform
(Billion Colonies/yr) 127.15 1 25,707 43,626 196A85 %contribution 65% 13% 22% 100%
Page 3-8 r.a.4 POPE & VOOP-IJE LLC lJ1PO’t’JTL. PL&SPG. CONJTTh Beaver Dam Creek Watershed Management Plan Final Report
SECTION 4.0 Beaver Dam Creek Watershed Management Plan Final Report
4.0 RECOMMENDATIONS
Appropriate long-term management measures are necessary to maintain and improve the water quality and natural resources of Beaver Dam Creek. The recommendations presented here include proactive measures which can be implemented by community members, local organizations and municipal employees to reduce pollutant loads from land uses within the watershed, as well as to track the extent of pollutants and effectiveness of implemented actions.
These measures have been developed through extensive coordination efforts with the Beaver Dam Creek Watershed Advisory Committee, the NYS Department of State, and the public input process. They address the goals and objectives of the WMP identified in Section 1.2 and are organized into general watershed-wide recommendations (Section 4.1), as well as specific target projects and priority actions within the watershed (Section 4.2). Watershed-wide recommendations are broken down into the following four categories:
1. ProtectionofNatural Resources 2. Educationand Outreach 3. Point andNonpointSourceManagementand Control 4. MonitoringWaterQualityand PollutantReduction
Specific target projects are broken down according to location within each of the three watershed reaches shown in Figure 2-14.
The recommendations of this WMP remain consistent with the recommendations of three prior studies which included Beaver Dam Creek: the 1995 Brookhaven/Southaven Hamlet Study, the 2001 SSER Comprehensive Management Plan (CMP), and the 2008 Inventory and Analysis of Barriers to Fish Passage for Six Long Island South Shore Estuary Reserve Tributaries.
The BrookhavenJSouthaven Hamlet Study gave the highest priority to recommendations which were aimed at maintaining “the essentially rural character of the two Hamlets and preserving the area’s open spaces, wetlands, waterways and natural resources.” The Hamlet Study’s
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watershed.
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to
Study
Association’s
in
Management
of
by
Inventory
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Estuary
Creek
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temporary
Hamlet
Village
the
Quality
efforts
Watershed
continuance
Dam
the
three
parcels Shore
Island
of
completed
of of
construction
Creek
key
residential
areas,
Long
Beaver
South
of
Dam
extensive
Many
Brookhaven
the
recently
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included
WMP.
Environmental
of
several
Beaver
the
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the
remediation
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to nonpoint
recommendations
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forth
with
Passage
the
set
which
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keep
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acquisition
Fish
management
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significant
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to
and
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2008),
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have
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abatement restoration Tributaries
This to
Analysis
IE’ M- E’EN1&1. Beaver Dam Creek Watershed Management Plan Final Report
4.1 Watershed-Wide Recommendations:
4.1.1 Protection of Natural Resources
The key objectives of these recommendations are to restore existing environmental damages to the natural resources of the watershed and to improve the health of those resources in ways that will enhance the future productivity and health of the watershed’s ecosystem. Since 2001 and the initial establishment of the Beaver Dam Creek Task Force, various initiatives among several groups and significant amounts of community effort have already been put into place to restore the tidal wetland habitats and water quality of Beaver Dam Creek (Section 2.4.5). Post-Morrow, Ducks Unlimited, Town of Brookhaven, Cornell Cooperative Extension, Suffolk County, Bellport High School’s SEQ, among other groups and organizations continue to be actively involved in public education,- planning and implementation of restoration activities associated with the tributary. However, the long-term health of the tributary is contingent upon the continued support and collaboration of these groups to bolster funding, fmd consensus, coordinate implementation of activities and promote support from individual citizens through public education. The following recommendations and initiatives are proposed to promote protection of natural resources and to aid successful implementation of the watershed management plan:
1. Monitoring and enhancing habitats. Seek funding and partnerships to continue and expand upon existing programs to restore, enhance and protect wetlands, in-stream habitats and natural upland areas within the watershed. Specifically, the program components should include the
following: - o Institute a program for monitoring the extent of natural and indigenous vegetation communitiesalong the tributary and naturalupland areas within the watershed. o Enhance existing habitats by controlling or removing problematic invasive species such as Phragmites. o Restore damaged or lost wetlands using proactive methods, such as removal of dredge spoil material and reintroductionof wetlandplants. o Reestablishconduciveunderwaterhabitat conditions for shellfish. o Improve wetland productivity by eliminating or reducing point and nonpoint sources of pollution (see Section 4.1.2 and 4.1.3 below). o Remove or mitigatebarriers to wildlifepassage.
2. Acquisition of land. Considerable efforts have been made by Suffolk County, the Town and the Post-Morrow Foundation to acquire lands for open space preservation in the vicinity of the tributary and upland areas important for groundwater protection (see Section 2.4.5). However,
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4.1.2 Education and Outreach
The Town of Brookhaven has implemented numerous stormwater-focused educational programs to increase citizen stewardship within their communities and reduce pollutants that can potentially impact ground and surface water resources. These programs, including detailed actions implemented through the Town’s Stormwater Management Program, are discussed in Section 2.4.5. Additional recommendations are presented here to further make the public aware of issues within the watershed, and to promote the discontinuance of practices which contribute to pollution within the watershed. The following recommendations are provided:
1. Educational Programs and Opportunities. Continue to provide educational opportunities through the Town’s Stormwater Management Program, as well as develop/promote educational opportunities regarding watershed habitat protection and other public involvement opportunities in the form of pamphlets, newsletters, website information, posting of signage with the name of the tributary at tributary/road crossings, and other media tools through Cornell Cooperative Extension, Suffolk County, Town of Brookhaven, Post-Morrow Foundation and the South Shore Estuary Reserve.
2. Storm drain marking program. Have Suffolk County and the Town continue the storm drain marking program in coordination with local groups, such as SEQ, for placement of medallions on additional storm drains throughout the watershed.
3. Fertilizer use. Encourage homeowners to reduce or eliminate fertilizer use, or remove fertilizer dependent vegetation and establish native planting areas in proximity to Beaver Dam Creek. o Educate the public about the value of protecting the indigenous landscape through local outlets, such as schools, libraries, horticultural centers and local landscapers. o Practice bayscaping, an environmentally friendly form of landscaping within coastal watersheds (visit www.peconicbaykeeper.org for more information). Include maintaining or creating naturalized meadow, woodland and shrub planting areas to intercept and filter stormwater and reduce fertilizer/nutrient input. Organizations such as the Peconic Baykeeper and Cornell Cooperative Extension already have extensive ecological landscaping information in place and can aid local organizations such as the Post-Morrow Foundation and Brookhaven Village Association in disseminating this information for no or minimal cost within the community via their websites, flyers and community meetings. o Plant shade trees along open stretches of tributary banks for soil stability, biological uptake and shading of surface water to maintain lower water temperatures and higher dissolved oxygen levels.
4. Stormwater runoff. Encourage homeowners to reduce stormwater runoff from their properties through the following mechanisms: o Redirect gutters into dry wells or rain barrel collection systems. o Install rain gardens planted with native vegetation and redirect gutters into them.
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o Continued meeting of the Beaver Dam Creek Water Quality Group with Brookhaven Town and county officials to address the leachate plume. o Mapping of the groundwater contributing area to Beaver Dam Creek (e.g. refinement of the Suffolk County Groundwater Model by CDM in 2003). o Implement a GIS tracking system for status of residential wells (e.g. abandoned, in use), as well as for monitoring wells being used to track the leachate plume. o Conduct pollutant load modeling for groundwater-based sources to determine water quality impacts (e.g. nitrogen) resulting from sources such as on-site sanitary systems in high water table areas, existing and proposed sewer districts, and from the Town of Brookhaven landfill leachate plume. o Remediate nonpoint source pollution from groundwater (e.g. upgrade/relocation of non- functioning sanitary systems, mitigation of leachate plume from the Town landfill). o Implement a GIS tracking system for septic system location, maintenance and functioning status, particularly within high groundwater areas. An inspection mechanism and schedule for tracking septic system maintenance should be implemented through the coordination of Town and County staff.
4. Stormwater pollution. Regular maintenance of existing drainage infrastructure and roadways (street sweeping, leaf collection, etc.) are key actions to ensuring accumulated leaves, sediment and other pollutants are not directed into the adjacent waterways. Reduce the volume and types of nonpoint sources of pollution carried within stormwater to improve the quality of surface waters within the watershed so that the tributary’s surface waters consistently meet the State of New York’s SA water quality standards for swimming, fishing and shell-fishing. This can be accomplished through the continued implementation of the Town’s Stormwater Management Program (see Section 2.4.5), as well as through the enforcement of NYS standards for erosion and sediment control and post-construction design for construction projects of one acre or more. A valuable resource is the NYSDEC and NYSDOS Stormwater Management Guidance Manual for Local Officials (2004). The following additional components are necessary for long-term management of nonpoint sources from stormwater runoff; strategies for their implementation are further discussed in Section 4.2 and Section 5.0. o Expansion of stormwater staff at the Town of Brookhaven to be able to implement the actions described within the Town’s Stormwater Management Program. o Modify Town Highway Department drainage structures that direct road runoff directly into waterways. These structures should be replaced with sumps, stormwater detention basins or swales to protect waterways from direct intrusion of salt, oil, and other substances from stormwater. o Periodic updating of GIS mapping for storm drain infrastructure and conveyance systems, as necessary (see current comprehensive map in Figure 2-14 and 2-14A through 2.-14C). o Prioritization of street sweeping and catch basin maintenance within the Beaver Darn Creek watershed, particularly those priority subwatershed areas identified within Figure 14. o Consider alternatives to road salt that are less harmful to water quality and wildlife, such as Calcium Magnesium Acetate and Potassium Acetate. o Regular monitoring of catch basins/drainage structures within the watershed in order to determine necessary maintenance measures and prioritize cleanout schedules. o Encourage public involvement by implementing an “adopt-a-drain” program within the community, where citizens monitor existing drains, remove litter and leaf debris and report catch basins in need of cleaning to the Town. o Consider new or expanded stormwater retention facilities within key areas of the watershed (see recommended designs and construction timetable within Section 4.2). o Mitigate the impact of necessary impervious surface areas within the drainage area through the use of infiltration, surface detention basins, dry wells, trench drains and other types of hPM Page 4-8 E’SENTA • A3’.PWG. c_LIG of
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4.1.4 Monitoring Water Quality & Pollutant Reduction
1. Water quality monitoring. Existing surface water quality monitoring programs of the SCDHS and NYSDEC should be continued and expanded to determine the effectiveness of implemented management measures after they are constructed or installed. Utilize Bellport High School’s Students for Environmental Quality (SEQ) to supplement the County’s water quality monitoring and conduct periodic sampling to track effectiveness of stormwater improvement projects within the watershed.
2. Landfill leachate. The Beaver Dam Creek Water Quality Group should continue to meet with Town and county officials to address the landfill leachate plume. It is imperative that the severity and spatial extent of the landfill leachate plume be determined (see Section 4.1.3), tracked over the long term, and appropriate mitigation actions put into place until the plume no longer poses a threat to public health or the environment. Modeling the extent of the plume could be done by using a contaminate transport model or by analyzing water samples from ground water wells (already initiated by Town). A contaminate transport model can be an add-on to a calibrated ground water flow model and based upon earlier studies completed for the Town.
3. Failing sanitary systems. Identify failing on-site septic systems within the surface and ground water contributing area. This could be done by analyzing water samples from shallow ground water wells and comparing these data to regions with similar land uses, nearby areas and sewered areas. Track these identified systems in GIS and remediate as necessary (see Section 4.1.3).
4. Adaptive management. The recommendations and implementation of this WMP should be re evaluated and adjusted as necessary in the future as conditions change and more information is gathered. At minimum, a re-evaluation should occur within 10 years of the adoption of this WMP.
4.2 Target Projects and Priority Actions
Based upon the results of the pollutant load analysis discussed in Section 3.0, Table 4-1 below identifies recommendations for stormwater improvements within the subwatersheds that drain into Beaver Dam Creek. Target projects and priority actions were also determined by considering the highest ranked subwatershed areas within each stream reach and reviewing the existing drainage infrastructure conditions, availability of land area for drainage improvements and other land use and physical conditions. The recommendations for the top ranked priority areas, as well as the land use and physical constraints for each are summarized below:
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Reach 1 — Subwatershed 1: This subwatershed contributes overland flow (OF1) to the tributary (see Figure 2-14a) and primarily includes road runoff from Bay Road. This subwatershed is ranked as the fourth greatest estimated pollutant contributor overall. Adequate land area and depth to groundwater are available within this subwatershed for drainage installations/improvements. Suggested improvements include:
o Installation of stormwater retention structures (catch basins and leaching pools) within the existing road right of way along Bay Road to intercept stomwater prior to the overland flow discharge point. o Reduce existing pavement at the terminus of Bay Road in close proximity to the water (i.e., replace unused concrete area with native plantings and four foot wide access path or evaluate feasibility of bioretention area installationto provide stormwater storage and treatment prior to overflows into the Bay. o Consider additional options for stormwaterrecharge andlor diversion on individual properties (e.g. installation of rain gardens or rain barrelrainwater collection systems).
Reach 1 - Subwatersheds 2 through 12:
Outfalls 1 through 11 within the Belihaven community (see Figure 2-14a) collectively exceeded pollutant loads for all other subwatersheds within the study area. The Beithaven community is densely developed and resultant runoff is captured in catch basins, which then directly pipe stormwater runoff into Beaver Dam Creek via outfalls. This area is significantly constrained with respect to both available land area and depth to groundwater for potential drainage improvements. Given these constraints, efforts in this area will need to be focused on retrofitting techniques for existing catch basins and methods to reduce runoff volumes reaching these drainage structures which directly discharge to the tributary. Suggested improvements include: Routinely monitor and clean out existing catch basins to remove leaf debris, sediments and floatables on a regular basis. + Installation of linear, low profile drainage systems along Buscher, Shields and Lindner Courts to redirect stormwater from direct outfalls and allow for some recharge of stormwater. + Installation of stormwater retention structures (catch basins and leaching pools) within the existing road right of way along Highview Blvd. to intercept stormwater and reduce stormwater volumes contributingto the direct outfall pipes. + Explore retrofit options for existing catch basins discharging directly to the tributary. While regular maintenance is required, the use of catch basin inserts to capture oils, sediment, bacteria and other pollutantswould assist in improvingwater quality of directly discharged stonuwater into the tributary. + Explore opportunities to team with private manufactures to establish pilot improvement and stormwater monitoring projects involving newer technologies, such as catch basin
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retrofitting and replacement of existing paved areas (such as cul-de-sacs) with porous pavement or grass pave (load bearing cellular confmement system which is planted and resembles lawn area). + Pursue resident involvement and incentive programs to reduce stormwater runoff generated from the individual properties (i.e., conversion of impervious surfaces to pervious paths and driveways, installation of rain gardens or rain tanks to collect roof runoff or the use of low profile infiltratorsystems on individual properties).
Reach 1 — Subwatershed 13:
The subwatershed contributes overland flow to the tributary (0F2; see Figure 2-14a) and primarily includes farmland to which Suffolk County maintains the development rights. Due to its size and land use, this subwatershed is the greatest estimated pollutant contributor in Reach I and ranked number 2 overall. Most of the concern regarding this subwatershed is related to periods of exposed soils which occur during typical farm practices and from the lack of on-site stormwater storage/recharge, as currently the majority of stormwater runoff is directed along the topographic profile of the area, towards the tributary. Adequate land area and depth to groundwater are available within this subwatershed for drainage installations/improvements. Suggested improvements include: o Investigate the possibility of creating vegetated drainage swales or berms and adding drainage retention (with large storm overflows) on the seaward (eastern) side of the existing farm areas to reduce direct runoff to the tributary and associated wetland areas. o Installation of roadside leaching drainage structures along South Country Road to recharge stormwater runoff in areas with greater depth to groundwater and reduce stormwater runoff volumes from running overland towards the tributary. o Partner with the NYS Department of Agriculture and Markets to further promote the Agricultural EnvironmentalManagement Program in order to encourage the implementation of the identified conservationpractices, and/or explore options for conservation easements or other means to support agricultural BMPs.
Reach 1 — Subwatershed 15: This subwatershed contains the Beaver Dam Marina, which contributes stormwater to the tributary via Outfall 12 (012; see Figure 2-14a). This subwatershed is ranked as the fifth greatest estimated pollutant contributor overall. Suggested improvements include: o Require installation of stormwater drainage improvements and consider conversion of existing imperviousparking area to pervious pavement or gravel parking/storageareas during any future site plan or building department application for Beaver Dam Marina to reduce runoff and improvestormwaterrecharge.
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Reach 2 — Subwatershed 17
This outfall (013) was raniced sixth overall and is a direct discharge pipe associated with a residential development in which all stormwater is directed from roadside catch basins to this outfall (see Figure 2-14b). As the roadside catch basins connected to this outfall have little or no stormwater storage or recharge capacity, pollutants are discharged directly into the tributary. Therefore, the following improvement projects are suggested for consideration: o Installation of roadside leaching drainage structures along Prairie Lane to recharge stormwaterrunoff and reduce directflowof runoffinto the tributary. o Pursue the purchase of existing vacant land within the subwatershed for the creation of a recharge basin to serve this area or obtain drainage easements to redirect stormwater to rechargefacilitiesand away fromthe tributary. o Reduce impervious surface area which contributes stormwater runoff to the tributary by educatingand workingwith homeownersto considerpervious alternativesto paved areas and on-sitestormwaterrecharge options(e.g.rain gardens,rainwater collectionsystems for reuse as irrigation,dry wells, etc.). o Requirethe installationof stormwaterretentionfor any newlyproposedimpervioussurfaces.
Reach 3 — Subwatershed 19
Outfall 14 (014), which is a directly discharging outfall pipe into the tributary, was ranked as the number 1 priority for the overall watershed. This subwatershed is mainly comprised of impervious area associated with South Country Road as it merges into Montauk Highway north of the LIRR tracks and several commercial uses with high amounts of impervious cover, and therefore high stormwater runoff volumes. While depth to groundwater is limited in areas closest to the tributary, vacant lands, owned by the Town of Brookhaven (north side of the LIRR and east of Old Country Road) and the Post Morrow Foundation (large parcel on the west side of Montauk Highway), are present within or adjacent to this subwatershed, which may present opportunities for the installation of stormwater retention and water quality treatment practices. It is also within this portion of the watershedltributary in which NP&V staff observed vaporizing chemicals from culverts and friable oil and flocculent within the tributary itself, which is most likely the result of direct chemical discharges or dumping and evidence of the plume from the Brookhaven Landfill reaching this area. As this is the northernmost subwatershed associated with an outfall, water treatment within the area should be considered. Priority actions for this outfall include:
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— — — — — — -- — - I
Beaver Dam Creek Watershed Management Plan Final Report
TABLE 4-1
SpEdn?Ic RECOMMENDED STo1isiwATER MANAGEMENT IMPROVEMENTS WITifiN THE BEAVER DAM C1uEK
WATERSHED MANAGEMENT AREA Estimated Sub- Infrastruc Prionty Water watershed ture . Recommended Improvements Ranking Quality L jpe & N0. Volume* Reach 1 Overland 4 ±12,350 CF • Installation of stormwater retention structures (catch basins and leaching pools) Flow within the existing road right of way along Bay Road to intercept stormwater prior (OF 1) to the overland flow discharge point. • Reduce existing pavement at the terminus of Bay Road in close proximity to the water (i.e., replace unused concrete area with native plantings and four foot wide access path or evaluate feasibility of bioretention area installation to provide stormwater storage and treatment prior to overflows into the Bay. . Consider additional options for stormwater recharge and/or diversion on individual properties (e.g. installation of rain gardens or rain barrel rainwater collection systems).
2 - 12 Outfalls Ranging ±5 1,103 CF Routinely monitor and clean out existing catch basins to remove leaf debris, (01 —011) from 3-19. sediments and floatables on a regular basis. • Installation of linear, low profile drainage systems along Bellhaven Rd. and Buscher, Shields and Lindner Courts to redirect stormwater from direct outfalls and allow for some recharge of stormwater. • Installation of stormwater retention structures (catch basins and leaching pools) within the existing road right of way along Highview Blvd: to intercept stormwater and reduce stormwater volumes contributing to the direct outfall pipes. • Explore retrofit options for existing catch basins discharging directly to the tributary. While regular maintenance is required, the use of catch basin inserts to capture oils, sediment, bacteria and other pollutants would assist in improving water quality of directly discharged stormwater in to the tributary. • Explore opportunities to team with private manufactures to establish pilot improvement and stormwater monitoring projects involving newer technologies such as catch basin retrofitting and replacement of existing paved areas (such as cul de-sacs)_with_porous_pavement_or_grass_pave.
VEPST Page 15 NLS PP & VOD)IE. LLC EMRAL • • _ _ _
— — — — - —
Beaver Dam Creek Watershed Management Plan Final Report
Estimated Sub- Infrastruc Pnonty Water watershed ture Recommended Improvements N Ranking Quahty P. pe O• Volume* Pursue resident involvement and incentive programs to reduce stormwater runoff generated from the individual properties (i.e., conversion of impervious surfaces to pervious paths and driveways, installation of rain gardens or rain tanks to collect roof runoff or the use of low profile infiltrator systems on individual properties). 13 Overland 2 1 7,800 CF • Investigate the possibility of creating vegetated drainage swales or berms and flow adding drainage retention (with large storm overflows) on the seaward (eastern) side (0F2) of the existing farm areas to reduce direct runoff to the tributary and associated wetland areas. • Installation of roadside leaching drainage structures along South Country Road to recharge stormwater runoff in areas with greater depth to groundwater and reduce stormwater runoff volumes from running overland towards the tributary. 14 Overland 16 ±3,100 CF • Consider installation of roadside stormwater leaching drainage structures or (if Flow depth to groundwater is minimal) low profile infiltrator systems at Bay Rd. and 2’ (0F3) Street to reduce stormwater to the overflow on the southern portion of the subwatershed. 15 Outfall 5 ±11,100 CF • Require installation of stormwater drainage improvements and consider conversion (012) of existing impervious parking area to pervious pavement or gravel parking/storage areas during any future site plan or building department application for Beaver Dam Marina to reduce runoff and improve stormwater recharge. Reach 2
16 Overland 10 ±4,600 CF . . . . ‘ Consider installation of catch basins with inserts along this stretch of Beaverdam Road to capture oils, sediment, bacteria and other pollutants. (yF4) 17 Outfall 6 ±10,700 CF • Installation of roadside leaching drainage structures along Prairie Lane to recharge (013) stormwater runoff and reduce direct runoff into the tributary. . Pursue the purchase of existing vacant land within the subwatershed for the creation of a recharge basin to serve this area or obtain drainage easements to redirect stormwater to recharge facilities and away from the tributary. • Reduce impervious surface area which contributes stormwater runoff to the tributary by educating and working with homeowners to consider pervious alternatives to paved areas and on-site stormwater recharge options (e.g. rain gardens,_rainwater_collection_systems_for_reuse_as_irrigation,_dry_wells,_etc.).
(‘ELSt PE & VDCFkHIS LLC Page 4-16 EMFlENTAL • PLANNING • CCNSLLflNG
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feet (CF). cubic in provided Value practices. stormwater for management proposed volume the goal treatment therefore
and load pollutant the of percent 90 carry will event storm the which volume stormwater the is estimated Volume Water Quality *Estimated
particularly_ammonia.
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waters of surface the Department County Health Suffolk the by monitoring Regular •
wells). of groundwater monitoring expanded Town commenced has the and
ongoing currently is (This and groundwater. the into tributary plume the of spread
further to prevent remediation plume for and funding secure mitigation, for strategy
a devise extent, its track plume, the monitor further to officials County and Town
and Group Quality Water Creek Dam Beaver the between coordination Continued •
the tributary. to discharges chemical further to and prevent violations discharge
potential monitor to businesses of surrounding and enforcement inspections Initiate •
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accordance in ponds/wetlands stormwater constructed or or swales dry wet
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lands vacant owned Post or Morrow Town of the use either the of Exploration •
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— - —
— — —
_ _ Beaver Dam Creek Watershed Management Plan Final Report
Before structural measures are implemented, a qualified and experienced professional should delineate and flag wetland areas near the proposed stormwater remediation projects noted in Table 4-1. The inspection of each proposed Best Management Practice or new retention facility should include the following components: locate the tidal wetlands boundary, measure water depths at various locations, if necessary conduct reviews of existing site conditions, catalog vegetative species, collect photographic documentation as well as land-use and geographical details for completion of environmental forms. In addition, coordination with survey crew will be required for field location of property lines, wetland boundaries and existing drainage infrastructure that would tie into such systems.
h i_fl Pa ge4-18 T1lO’t.N1Ai_. NSi.X_TW’G Beaver Dam Creek Watershed Management Plan Final Report
SECTION 5.0 Beaver Dam Creek Watershed Management Plan Final Report
5.0 IMPLEMENTATION STRATEGY
The following implementation strategy is designed to advance the goals and objectives of the Beaver Dam Creek Watershed Management Plan. This strategy essentially consists of a schedule of specific activities, capital projects and policy or legislative actions that need to be enacted and implemented in order to ensure adequate management of the watershed in accordance with this plan. The strategy is based on the recommendations set forth in Section 4.0.
Beaver Dam Creek lies within multiple governmental jurisdictions, and each agency is responsible for a different type of activity that affects the watershed or directly affects the tributary. This WMP is designed to facilitate inter-governmental coordination and cooperation among these agencies so as to ensure that all actions work to the benefit of the watershed. The purpose of this section is to identify the sphere ofjurisdiction exercised by each relevant agency, as well as to identify the specific actions that each agency can take to help implement the recommendations set forth in Section 4.0.
This Section is divided into three sub-sections; Section 5.1 identifies recommended revisions to local land and water use controls which would help to preserve water quality and ecological resources; Section 5.2 identifies the governmental jurisdictions that will have a role in implementing the Beaver Dam Creek WMP and categorizes the actions they must take; and Section 5.3 lists costs and potential funding sources which the County, Town and local non profit organizations should review when seeking financial assistance to implement the recommended actions.
hPSWI PE V-HS LLC g • • Beaver Dam Creek Watershed Management Plan Final Report
5.1 Revisions to Local Land and Water Use Controls
In order to achieve many of the recommendations discussed in Section 4.1, revisions to local land and water use controls will be necessary. The following specific actions have been identified as necessary to implement these recommendations:
• Consider completing the residential upzoning to A2 recommended within the Brookhaven Hamlet Study. All remaining residential parcels two acres and larger within the watershed study area boundary should be upzoned.
• Ensure appropriate land use density within the watershed area for Beaver Dam Creek, through coordination with SCDHS on the implementation of Article 6 of the Suffolk County Sanitary Code. Transfer of Development Rights (TDRs) to the Beaver Dam Creek watershed area should be reviewed and limited based on nitrogen load.
• The contribution of nitrogen to surface waters is largely the result of malfunctioning and antiquated on-site sanitary systems. The development of enforceable regulations providing requirements to improve antiquated and failing sanitary systems and ensure proper maintenance of sanitary systems would greatly reduce the contribution of nitrogen from sanitary wastes via groundwater into Beaver Dam Creek and other surface waters. Review and consideration of local regulations to require mandatory pump outs, as well as upgrades of cesspools and malfunctioning septic systems within groundwater contributing areas is recommended by SCDHS and the Town of Brookhaven. The May 2008 MS4 municipal separate storm sewer system (MS4) SPDES General Permit Requirements for MS4s discharging to Oyster Bay/Mill Neck Creek and the Peconic Bay Total Maximum Daily Load (TMDL) drainage areas presently require: o On-site treatmentsystems to be inspectedand maintained or rehabilitatedat a minimum frequencyof onceeverythree years;and o Providesenforcement.
Similar requirements should be adopted by the Town of Brookhaven through the development of an on-site treatment system management program. IE NELSC PE V-IS LLC Page 5-2 BWIRQ’ENTAL • • coNs..LTIr’G Beaver Dam Creek Watershed Management Plan Final Report
The Town of South Kingstown, Rhode Island could also serve as a valuable model for a community which has implemented a septic system ordinance that focuses on upgrading old and non-functioning systems to protect the water quality of sensitive coastal waters. Key features of the South Kingstown code include the following:
o Legislation is drafted in accordance with and under the authority of the state law. o Records maintainedfor system inspection,maintenanceand upgrades. o Establishment of a public education program to inform people about the findings, benefits and goals of on-sitewastewater management. o Inspection results used to complete a town-wide system inventory and to track inspections, maintenanceand upgrades. o Systemowners assume responsibility for hiring a septage hauler or maintenance contractor to completethe maintenance/inspectionrequirementscontained in the inspection report. o All cesspools are considered substandard and an inadequate means of on-site wastewater treatment. Therefore, they are considered to be malfunctioning systems that are to be replaced with an on-site wastewater system conformingto state and local standards within 12 months after the sale of a property or within five years of the date of the first maintenance (baseline) inspection. o Grant and loan programwith 2% fixed rate for replacementof malfunctioning systems.
Further information can be found at: www.southkingstownri.comlcode/pw onsitewaste.cfrn.
• Maintain and improve surface water quality within the tributary through the creation of a State and federally recognized No-Discharge Zone (NDZ) encompassing the entire tributary within which boaters may not dispose of waste material through their boat bilges, holding tanks or marine toilets. (The Peconic Baykeeper has already enlisted the support of local towns, established a campaign, and seeks to carry forward a petition to the NY Department of State for designating the South Shore Estuary a NDZ).
• Promote low impact development and require stormwater quality best management practices for on-site drainage design on any site plans and subdivisions in the watershed area.
• Establish and set aside funding for creation of incentive programs to encourage property owners to use BMPs for stormwater management and reduction of existing impervious area for existing development within the watershed.
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RèOiiiiendIáñ -. . . . * •:c• :: Type of Responsible Short-Long Terml Funding Possiblè . Public Budget! ; : - Actjon Entity Tentative Schedule Sources Vendors Product 5 . Volunteer maintenance and monitoring. Involve schools, scouting and other groups of Direct Government Town; SSER; Short, Intermediate & 2, 3, 4, 8, 9, 12 & Town; SSER; Local Town/County Staff young people in the ongoing maintenance and improvement ofthe watershed and its Action; Education Local Schools; Long Term 13 Schools; Private Hours for bordering open space areas (i.e. spring and fall maintenance and clean-ups, monthly litter Private Organi-zations/ Coordination of pick-up runs, etc.). Community Businesses Outreach Programs lilvolvement 6. Sponsorship of Improvements. Allow local organizations and business Direct Government Town; Private Short, Intennediate & 2, 3, 4, 8 & 9 Town; Private Town/County Staff groups/associations to sponsor the information plaques and to underwrite the addition (and Action; Education Community Long Term Organizations! Hours for maintenance of) landscaping or other improvements by permitting recognition of their Involvement Businesses Coordination monetary contribution towards the improvements on signage (e.g. similar to highway mile sponsors).
Edncatien and Outreach Recommendations
Educational programs and opportunities. Continue to provide educational opportunities Education; Individual Town; SSER; Short Term) 1, 3, 4, 5, 6, 8 & 9 Town; SSER; Private $15,000 per yr*/ through the Town’s Stormwater Management Program, as well as develop/promote Implementation County, PMF, Immediate & Ongoing Organizations! Literature, Signs, educational opportunities regarding watershed habitat protection and other public Residents Businesses Web involvement opportunities in the form of pamphlets, newsletters, website information, Consultant; posting of signage with name of tributary at tributary/road crossings, and other media tools Printer through CCE, County, Town, PM and SSER.
2. Storm drain marking program. Continue Suffolk County and the Town storm drain Direct Government Town; SSER; Short, Intermediate & 2, 3, 4, 8 & 9 Town; SSER; Local Town/County Staff marking program in coordination with local groups, such as SEQ, for placement of Action; Education Local Schools; Long Term Schools; Private Hours for medallions on additional storm drains throughout the watershed. Private Organizations/ Coordination of Community Businesses Outreach Programs Involvement 3. Fertilizer use. Encourage homeowners to reduce or eliminate fertilizer use, or remove Education; Town; SSER; Short Term) 1, 3, 4, 5, 6, 8 & 9 Town; SSER; $10,000 per yr*/ fertilizer dependent vegetation and establish native planting areas. Private Implementation CCE, PMF Immediate & Ongoing Consultant; Literature-Web Residents Printer 3a. - Educate the public about the value of protecting the indigenous landscape through Education; Town; SSER Short Term! 1, 3, 4, 5, 6, 8 & 9 Landscape Literature-Web local outlets, such as schools, libraries, horticultural centers and local landscapers. CCE, PMF, Immediate & Ongoing Contractors Local Schools, Private Businesses 3b. - Practice bayscaping and maintain or create naturalized meadow, woodland and Education; Permit; Town; Short Term) 1, 3, 4, 5, 6, 8 & 9 Landscape Private Funds! shrub planting areas intercept and filter stormwater and reduce fertilizer/nutrient Private Implementation Residents Immediate & Ongoing Contractors Buffer Plantings input. 3c. - Plant shade trees along open stretches of tributary banks for soil stability, biological Education; Town; Short Term! 1, 3, 4, 5, 6, 8 & 9 Landscape Private Funds! uptake and shading of surface water to maintain lower water temperatures allowing Private Implementation Residents Immediate & Ongoing Contractors Buffer Plantings higher dissolved oxygen levels.
4. Stormwater runoff. Encourage homeowners to reduce stormwater runoff from their Education; Individual Town; Short Term) 1, 3, 4, 5, 6, 8 & 9 Town; SSER; $10,000 per yr*/ properties through BMPs (redirect gutters into dry wells, rain barrel collection systems, or Implementation Residents Inirnediate & Ongoing Consultant; Literature-Web rain gardens planted with native vegetation and installation of pervious alternatives to paved Printer walkways and driveways).
5. Sanitary system maintenance. Encourage homeowners to regularly inspect and maintain Education Town; SSER Short Term! Non-Profit Town; Consultant; Private Funds! on-site sanitary systems in high groundwater areas and elsewhere in the watershed Immediate & Ongoing Donations Printer Improved Sanitary (information available at CCE’s website). 2, 3, 4, 6, 7, 8&9 System Function IEPSW • . Page 5—6 5—7
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:‘: Rècoinmendàfióñ: :;_ . - Type of , SPOP!; Short-Long ñifr: Fundin Possible •, •. JiiNiC Budgetl -- f -, Action - :: Entity TentativeSchedule Sources Vendors Product 4e. - Consider alternatives to road salt that are less harmful to water quality and wildlife, Direct Government Town Short, Intermediate & 2, 3, 4, 8 & 9 Town Town/County Staff such as Calcium Magnesium Acetate and Potassium Acetate. Action Long Term Hours for Implementation! Coordination 4f. - Regular monitoring ofcatch basins/drainage structures within immediate areas of Direct Government Town; SSER; Short Term! 1, 3, 4, 5, 6, 8 & 9 Town; SSER; PM, Town staffhours for the watershed in order to determine necessary maintenance measures and prioritize Action; Education; PM, BVA, Immediate & Ongoing BVA, Consultant; coordination; clean out schedules. Private Implementation Residents Printer $10,000 per yr*/ 4g. - Encourage public involvement by implementing an “adopt-a-drain” program Literature-Web within the community, where citizens monitor existing drains, remove litter and leaf debris and report catch basins in need of cleaning to the Town.
4h. - Consider new or expanded stormwater retention facilities within key areas of the Government Action Town Short, Intermediate & 2, 3, 4, 6, 7, 8 & 9 Drainage Dependent Upon watershed to intercept and recharge stormwater runoff, mitigating the impact of Long Term Contractors Specific Project necessary impervious surface areas within the drainage area (see recommended designs and construction timetable within Section 4.2). Infiltration techniques such as surface detention basins, dry wells, trench drains and other types of structures that retain, filter and recharge stormwater should be considered and implemented.
4i. - Promote local organic landscape care, including use of compost material from the Education; Town; SSER; Short Term! 1, 3, 4, 5, 6, 8 & 9 Town; SSER; $10,000 per yr*/ Town of Brookhaven’s Compost Facility. Private Implementation Residents Immediate & Ongoing Consultant; Literature-Web Printer 4j. - Team with private manufacturers to install pilot stormwater and water quality Direct Government Town Short, Intermediate & 2, 3, 4, 8 & 9 Town; Private Dependent Upon drainage infrastructure and new technologies (e.g. catch basin inserts, impervious Action Long Term Drainage Venders Specific Project pavement) for evaluation within the watershed.
4k. - Require all new conmiercial and residential construction within the watershed area Legislative Review Town Planning Short Term; 2, 3, 4, 6, 7, 8 & 9 Town Private to retain all stormwater on-site through the use of dry wells, trench drains, rain Board & ZBA Immediate & Ongoing Personnel Expenditure! gardens and other BMP methods. Drainage Retention
41. - Require “curb cut” permits from the Brookhaven Highway Department for the Legislative Review Town Planning Short Term; 2, 3, 4, 6, 7, 8 & 9 Town Private construction, relocation or paving of impervious driveways in order to ensure Board & ZBA Immediate & Ongoing Personnel Expenditure! proper stormwater retention onsite (and not directed onto existing streets or Drainage Retention drainage swales leading to the tributary).
4m. - Ensure compliance with SPDES GP 0-08-001 and Chapter 86 of the Town Code Legislative Review; Town Planning Short Term; 2, 3, 4, 6, 7, 8 & 9 Town Private by requiring the installation of erosion and sediment controls during all new Government Action Board & Town Immediate & Ongoing Personnel Expenditure! construction and alterations involving site re-grading within the watershed area and Building Dept. Drainage Retention regular inspection of these measures.
4n. - Adopt incentives to encourage property owners to install stonnwater BMPs and Education; Town; SSER; Short Term! 1, 3, 4, 5, 6, 8 & 9 Town; SSER; $10,000 per yr*/ replace impervious surfaces and driveways with pervious alternates (gravel, Private Implementation Residents Immediate & Ongoing Consultant; Literature-Web crushed sheli or limestone, payers, etc.). Printer
4o. - Consider potential impacts to the Beaver Dam Creek headwaters during Government Action State Short Term! 2 State State staff preparation of the NYS DOT Sunrise Highway Corridor Sustainable Immediate & Ongoing Transportation Study; avoid expansion of impervious surfaces in this area to the maximum extent practicable.
APSW . . Page 5—9 Plan
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order
2):
the installation establish
have
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with
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vegetated
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of
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14):
14):
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14):
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and
and
land
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to
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possibility
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extent
between
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of
road
of
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runoff
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York depth Setauket Hydrodynamic inspections maintenance If swales
farm
Priority
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basins
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o
o
existing
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and
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treatment
Initiate discharge
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• Recommendation
Reach
•
Reach
Reach •
Reach
Projects
2.
la. No. EIW1RQ’MENr...
lb.
Target Plan
5-12
Report
Upon
Upon
Page
Final
Project;
Project
Project;
Expenditure
Expenditure
Management
cific
Expenditure
Specific Specific
Dependent
Dependent
Private
Private
Watershed
Creek
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Dam
Residents
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Drainage Residents
Expenditure
V
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Town;
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Town;
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Vendor/Contractor;
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Contractor;
9
9
&
&
9
& ,
8
8
8
7,
7,
7,
6,
10
6,
Expenditure 6,
Sources
4,
Funding
4,
4,
3,
3,
3,
2,
2,
2,
Private
&
Long
Pending
Term!
Term Term;
Pending
Pending
Term;
Ongoing;
Grant
Short
Long
Short
Grant
Intermediate
Grant
Short Short-Long
TentativeSehedTh,
Terml
SSER;
Private
Private
Entity
Town
Residents
Residents
Residents
Responib1é
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Education;
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Education
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of a
of
to
of
to
by the
and oils,
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of
path
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areas
water
within
runoff
to
reduce
within .
paved porous
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tributary.
recharge
sediments
the
to
quality
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collection
and
Dam
surfaces
catch ..
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access
collect storage
and systems).
with
prior capture
to to
tributary
the
creation improvement
pools)
pools)
on
as
conversion
stormwater
to
to
to
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the
water
debris,
wide
some
pilot Lane
stormwater to
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such
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for
tanks
rainwater
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parking/storage
foot
for collection
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inserts
leaching
proximity redirect
for
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impervious consider -•-
directly
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cul-de-sacs)
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to
runoff
:. Prairie
and
of
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and
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as
and
or
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close
gravel allow
basin
Buscher,
remove
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to
to
and
in
in
provide intercept or
pervious
and/or rainwater
to
Marina):
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technologies
and
basins
(such
intercept
basins
to subwatershed
to
pipes.
rain application
catch
along
easements
discharging gardens
to
tributary.
Road stormwater
Boat
the
assist
of
barrel
conversion
recharge. basins
Blvd.,
areas
newer
(e.g.
(catch Rd.): Blvd.
programs
(catch plantings the
consider
rain
outfall
recharge
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use
rain
improvements
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Road
Ln.):
structures
basins
systems of manufactures
(i.e., to
within of
Bay
catch
into
or would
drainage
installation
the systems).
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department
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1
options Bay
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land
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catch
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area
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with
- drainage
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to
to
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11
the
along .. from the
or
12
existing properties 13
which
installation
into required,
building
and
infiltrator pollutants
vacant
with along
out area
recharge
homeowners
for
the rain
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of -
existing
is
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from
way
retention area
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of profile
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way
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plan of
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existing
to
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reduce
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17
stormwater of
parking and
driveways,
of
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and
surface
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site
right
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involvement
serve
runoff of
options
the
pavement monitoring
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and
linear, maintenance
stormwater installation
to roadside
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to
discharge
use grass
unused
road
road
of of
volumes
of of
and future
redirect feasibility
runoff
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bacteria
from
purchase
or
(e.g.
and
on-site
additional
reduce
prior
the paths
flow
retrofit
opportunities
basin
facilities
installation
discharged
impervious
to resident
existing
impervious
regular
to
any Subwatershed
or
the
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and LLC
replace
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1,
2,
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Courts pLas.rJH.n. stormwater. Installation
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sediment, directly Explore
and retrofitting pavement generated Pursue
pervious runoff
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Consider treatment properties Require during existing
Marina
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stormwater Pursue
recharge • recharge Reduce educating
areas &
• •
• Reach
•
•
•
RecomrneIation
• • Reach
•
•
Reach
• •
Reach • POE ..
3.
4.
5.
6. ‘ IEPSW DVVIRC’JMENT*L
..No.- Plan
5-13
Report
Upon
Upon
Upon
Page
Final
Project;
Project;
Project;
Budget!
Management
Product
Expenditure
Expenditure
Expenditure
Public
Specific
Specific
Dependent
Specific
Dependent
Dependent
Watershed
Creek
SSER;
SSER;
SSER;
Drainage
Dam
Drainage
Drainage
Residents
Residents
Residents
vendors
ssibie
Consultant;
Consultant;
Consultant; —
Town;
Town;
Beaver
Town;
Printer;
Private
Printer;
Private Printer;
Private ..-‘
Vendor/Contractor;
Vendor/Contractor;
Vendor/Contractor;
9
9
9
&
&
&
8
8
8
7,
7,
7,
6,
6,
6,
4, Sources
4,
Funding
4,
3,
3,
3,
2,
2,
2, ,.
&
&
&
Terml
Schedule.A
Term!
Term!
Term!
Pending
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Ongoing;
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Short
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Grant
Grant Intermediate
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Intermediate
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Short-Long
Tentative .
SSER;
SSER;
SSER;
Entity
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Residents
Residents
Responsible
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Town;
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1
Action;
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Action;
of
Action
‘Jyj
Education;
Education;
Education;
Maintenance
Maintenance
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Government
Government
Government .. . .
to
to ‘
roof
roof
grass
basin
grass
basin
grass
basin
runoff
runoff
runoff
redirect .‘
redirect
redirect
or
tributary % or
tributary
or
tributary
sediments
sediments ..
sediments
impervious to
to
to
surfaces
catch
surfaces
catch
collect
catch
collect
the
the
improvement the
improvement
improvement
as
as to
as to
Ct.
to
Rd.
to
to
debris,
debris,
debris,
Court
pilot
pilot stormwater
pilot pavement stormwater
stormwater pavement
pavement
such
such
such
tanks
tanks
proposed
leaf
leaf
leaf
impervious
impervious
directly
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directly
directly
stormwater.
stormwater.
rain
stormwater.
rain
Bellhaven
of reduce
porous Lindner
of reduce
porous
reduce porous
of
establish of
of establish
or newly
establish
or .
remove
remove
to
remove to
to
to
to
to
along ,
with
to
with
any to
with
technologies to
along
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along
technologies
Bellhaven):
discharging
recharge gardens
discharging
for recharge gardens
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recharge
areas
conversion
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basins
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Belthaven): Belthaven):
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rain
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basins
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of
manufactures Ct., Ct., (i.e.,
manufactures
catch
paved
catch for
paved
catch for etc.). paved
for systems).
systems).
retention
catch A
catch
drainage
catch involving
involving
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incentive
incentive
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incentive
allow
private drainage
allow
private drainage
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private
wells,
Lindner
existing
existing
existing existing
existing
existing —
6—
properties
properties
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dry
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infiltrator
3
and
with
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of
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existing stormwater
existing
projects
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for
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and
and
and
as
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involvement direct
involvement of direct
inserts). options direct
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replacement options inserts). monitoring
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and
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opportunities retrofit
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resident opportunities
resident
resident •
or
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or
Subwatershed
Subwatershed LLC
catch •.•
catch
catch
stormwater
1, floatables.
stormwater
I, stormwater
floatables.
floatables. 1,
systems , Require surfaces.
and Routinely stormwater Installation Explore and (e.g. Explore Pursue retrofitting generated pave. runoff
pervious and Routinely (e.g. stormwater Installation and retrofitting
Explore Explore pave. generated • Pursue pervious runoff
and Routinely (e.g. and stormwater Explore Installation retrofitting Explore Pursue
pave. &
.
•
•
Reach
• •
Reach 1 ‘
•
• ‘
Reach
iRcommendation
7.
8.
9. IEPSW LSQ
Na Beaver Dam Creek Watershed Management Plan Final Report
generated from the individual properties (i.e., conversion of impervious surfaces to pervious paths and driveways, installation of rain gardens or rain tanks to collect roof runoff or the use of low profile infiltrator systems).
;.- . . •.tpe of &onsibJe Short-Long Term) : PoSS1C:: Public Budget) *i Recommendation ;. — Action 3ntity Tentative Schedule ,irces Vend”o Product 10. Reach 2, Subwatershed 16 (Overland Flow 4 — Beaver Dam Rd.): Government Action Town Short Term; Grant 2,3,4,6,7,8 &9 Town; Drainage Dependent Upon f_‘ Consider installation of catch basins with inserts along this stretch of Beaver Dam Road Pending Contractor Specific Project to capture oils, sediment, bacteria and other pollutants.
11. Reach 1, Subwatershed 9 (Outfall 10—Buscher Ct., Belifiaven): Education; Town; SSER; Short Term! 2, 3, 4, 6, 7, 8 & 9 Town; SSER; Dependent Upon • Routinely monitor and clean out existing catch basins to remove leaf debris, sediments Government Action; Residents Intermediate & Consultant; Specific Project; and floatables. Maintenance Ongoing; Printer; Drainage Expenditure • Installation of linear, low profile drainage systems along Buscher Court to redirect Grant Pending Vendor/Contractor; stormwater from direct outfalls and allow for some recharge of stormwater. Private Residents • Explore retrofit options for existing catch basins discharging directly to the tributary (e.g. catch basin inserts). • Explore opportunities to team with private manufactures to establish pilot improvement and stormwater monitoring projects involving newer technologies such as catch basin retrofitting and replacement of existing paved areas with porous pavement or grass pave. • Pursue resident involvement and incentive programs to reduce stormwater runoff generated from the individual properties (i.e., conversion of impervious surfaces to pervious paths and driveways, installation of rain gardens or rain tanks to collect roof runoff or the use of low profile infiltrator systems).
12. Reach 2, Subwatershed 18 (Overland Flow 5): Government Action Town Short Term; 2, 3, 4, 6, 7, 8 & 9 Town; Drainage Dependent Upon • Installation of roadside leaching drainage structures along South Country Road (near Grant Pending Contractor Specific Project junction with Fireplace Neck Rd.) to capture oils, sediment, bacteria and other pollutants prior to direct overflow to the tributary.
13. Reach 1, Subwatershed 2 (Outfall 1 — Lindner Ct., Bellhaven): Education; Town; SSER; Short Term! 2, 3, 4, 6, 7, 8 & 9 Town; SSER; Dependent Upon • Routinely monitor and clean out existing catch basins to remove leaf debris, sediments Government Action; Residents Intermediate & Consultant; Specific Project; and floatables. Maintenance Ongoing; Printer; Drainage Expenditure • Installation of linear, low profile drainage systems along Lindner Court to redirect Grant Pending Vendor/Contractor; stormwater from direct outfalls and allow for some recharge of stormwater. Private Residents • Explore retrofit options for existing catch basins discharging directly to the tributary (e.g. catch basin inserts). • Explore opportunities to team with private manufactures to establish pilot improvement and stormwater monitoring projects involving newer technologies such as catch basin retrofitting and replacement of existing paved areas with porous pavement or grass pave. ‘ Pursue resident involvement and incentive programs to reduce stormwater runoff generated from the individual properties (i.e., conversion of impervious surfaces to pervious paths and driveways, installation of rain gardens or rain tanks to collect roof runoff or the use of low profile infiltrator systems).
hPsv- u_c age • • Plan
Report
5-15
Upon
Upon
Upon
Upon
Final
Project;
Page
Project;
Budget?
Project
Project;
Management
Product
Expenditure
Expenditure
Expenditure Public
Specific
Dependent
Specific
Dependent Specific
Specific Dependent
Dependent
Watershed
Creek
SSER;
SSER;
Dam Drainage
SSER; Residents Drainage
Residents
Drainage
Drainage
Residents
Possible
Vendors
Consultant;
Consultant;
Contractor
Town;
Beaver Consultant;
Town;
Town;
Printer;
Private
Printer; Town; Private
Vendor/Contractor;
Printer;
Private
Vendor/Contractor; •
Vendor/Contractor;
9
9
9
9
&
&
&
&
8
8
8
8
7,
7,
7,
7,
6,
6,
6,
6,
Scurces 4,
FdIiiig
4,
4,
4,
3,
3,
3,
3,
2,
2,
2,
2,
..
&
&
&
Tei4
Schedàle
Term!
Term!
Pending
Term;
Term!
Pending
Pending
Pending
Ongoing;
Ongoing;
Short
Ongoing;
Short
Short Grant
Short
Intermediate
Grant
Intermediate
Grant
Grant
Intermediate
Tentative ‘
1$h6rt-Long
SSER;
SSER;
SSER;
Entity
Town
Residents
Residents
RponsLbic:;. Residents
Town;
Town;
Town;
Action;
Action;
Action
Action;
Xctioii’
Education;
Education;
Maintenance
Education;
Maintenance
Maintenance
r
Government
Government
Government
Government -
J
to
to
to
roof
roof
grass
basin
grass
basin —
runoff
grass
basin
runoff
redirect -
reduce
redirect
or
tributary
redirect
or
tributary
depth
sediments
or
tributary
sediments to
to
sediments
catch surfaces
to
collect
catch surfaces
to
collect the
(if
catch
improvement
the
improvement
the
as
to improvement
as Ct.
to
to
Ct. or as
to
Street
Ct.
debris, to
debris, -
pilot
debris,
stomiwater
pavement pilot
stormwater
such pavement
pilot
such
tanks pavement
2nd
such
tanks
leaf
leaf
leaf
impervious
directly
impervious
Buscher Shields directly
stormwater.
and
stormwater. rain directly
rain
Buscher
stormwater. structures
of porous reduce
of
of porous reduce
establish
of
or
establish
porous .
or of
establish Rd.
and
remove
to remove
to
to
to
remove
along along
to
with to
along to with technologies
technologies
- Bay to with
subwatershed.
technologies
drainage
at discharging
recharge
gardens
discharging recharge
gardens
the discharging
recharge
Belihaven):
areas
conversion
areas basins
conversion
basins
newer
areas Belthaven):
of
systems newer
systems basins
programs Beliliaven): Belihaven)
rain
programs newer
rain
some systems
Ct.,
some
basins
some
!
basins
manufactures of Ct., (i.e.,
systems
of manufactures leaching Ct., (i.e., basins Ct., catch
for paved
catch manufactures
for paved
systems).
catch
systems). for paved
3): portion
,
catch
involving catch
drainage
drainage
involving
Buscher catch
incentive
allow involving private incentive
drainage
allow
private
Shields
— Buscher
allow
private
existing Buscher Flow
existing
existing
infiltrator 9 —
existing
existing
properties —
and
existing installation properties
and
.
infiltrator
5 and
installation
with and
infiltrator stormwater
southern
8)— 7 and
of with out
of out
existing with profile
profile
projects existing of out
projects
existing profile
projects
he .
profile
.:
for
team
for
(Outfall — team
low
clean
profile for
outfalls on low team
clean profile
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outfalls
0
low (Outfall to
clean
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to (Outfall (Outfall I
low
roadside
.- individual to
5
individual 14
7 8
driveways,
and low
driveways,
low and
of
and
,,
involvement
direct
options inserts). of
involvement
direct monitoring replacement the
linear, options
inserts). of
replacement monitoring the direct linear,
options inserts). and
monitoring replacement
linear,
and
overflow
use of
of use
from and
minimal)
from of and
basin
monitor
from
from the and basin
monitor
from
basin is
monitor paths the
retrofit
opportunities the paths
retrofit
resident
opportunities
to
resident retrofit
opportunities
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or
Subwatershed
installation
or
Subwatershed ,
Subwatershed Subwatershed
catch
stormwater 1 floatables. catch
LC
1, stormwater floatables.
catch
1,
1, 1, stormwater floatables.
and Routinely stormwater Installation Explore (e.g. Explore and retrofitting pave. Pursue generated pervious runoff Routinely and Installation stormwater
Explore (e.g. Explore and retrofitting pave. generated Pursue pervious runoff
and Routinely Installation stormwater Explore (e.g. Explore and retrofitting
Recommendation • • Reach • •
•
• Reach • •
‘
Reach Consider groundwater stormwater • Reach Reach • •
14.
No.
15.
16. &
IEPSW 17. IWIRT.L. 18. Plan
Report
Fund
age
Upon
Extension
Final
Project;
Appeals
Management
legislative
of
Expenditure
Revolving
Specific
and Dependent
Cooperative
Board
Watershed
State
cycles
Creek
Cornell
Water
Zoning —
SSER;
Drainage budget
Dam
Residents
maintenance.
CCE
ZBA-
Consultant;
Town;
Beaver
Drinking
annual
Printer;
Private
Vendor/Contractor;
to
website
9
and
municipalities
Code
&
Agency’s
8
7,
according
Association Sciences
more
6,
or
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http://www.nysparks.com/grants/
varies 3,
newsletters
Protection
two
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of
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Fund)-
part
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3358
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http://www.nyserda.orgfPrograms/Environmentlmuniwaterwwt.asp
Suffolk
Brookhaven —
Terml 5-10
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http://www.nycofunding.org/DotNetNukel
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http://www.dec.ny.
sources
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LWCF
Town;
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cost
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http://www.nrcs.usda.gov/programs/whip/
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http://www.dec.ny.gov/pubs/4774.html
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http://www.nrcs.usda.gov/programs/
(WHIP)
under associated
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assistance
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://www.nysdot.gov/portal/page/portal/prograrns/tep
and
SSER SUNY
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http://www.nys-soilandwater.org/aemlnonpoint.html
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Intermediate
Program
to For
consultant
or
http://www.nyswaterfronts.comlreciuest.html
roof
Infrastructure
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Species
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(TEP)-
Creek
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Program
or
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IEPSW ETVSStNTS.L Beaver Dam Creek Watershed Management Plan Final Report
5.3 Cost and Potential Fundmg Sources
Costs associated with each proposed implementation measure are identified in Table 5-1 above. In addition to those noted in the table, both federal and state funding may be available through grant applications, several of which are summarized below. Generally, applications for these programs are accepted on a yearly basis.
1. Environmental Protection Fund (EPF), Local Waterfront Revitalization Program Grants through the NYS Department of State http://nyswaterfronts.com/reguest.html On an annual basis, the Department of State solicits grant applications from local governments for 50/50 matching grants from the New York State Environmental Protection Fund’s Local Waterfront Revitalization Program. Funding to advance preparation, refmement or implementation of Local Waterfront Revitalization Programs (LWRP) is available to local governments under Title 11 of the New York State Environmental Protection Fund Local Waterfront Revitalization Program. The LWRP encourages municipalities to plan for the future of their waterfronts and undertake improvement projects to implement their plans.
2. Federal Commons Grants Management Portal www.grants.gov 66.439 Targeted Watersheds Grants To support innovative, community-based watershed approaches aimed at preventing, reducing, or eliminating water pollution. The Targeted Watersheds Grant Program provides resources in the form of grants or cooperative agreements to support watershed organizations in their efforts to expand and improve existing water protection measures. In separate competitive announcements, funds are awarded to assist watershed partnerships comprised of State, Tribal, local, and interstate agencies, and public or nonprofit organizations in developing, implementing, and demonstrating: 1) on-the-ground projects to improve or maintain water quality; and 2) organizational and technical capacity building projects to prime organizations to be in a position to implement on-the-ground watershed projects. The cornerstone of the implementation portion
hr’ELN PC B, LLC Page 5-17 E1WIIRO’t.JTAL • • OONSL&TING Beaver Dam Creek Watershed Management Plan Final Report of the program is diverse partnerships that are ready to implement projects to improve water quality and produce tangible, measurable, environmental results in a short time frame.
66.461 Regional Wetland Program Development Grants Wetland Program Development Grants (WPDGs) provide eligible applicants an opportunity to conduct projects that promote the coordination and acceleration of research, investigations, experiments, training, demonstrations, surveys, and studies relating to the causes, effects, extent, prevention, reduction, and elimination of water pollution. While WPDGs can continue to be used by recipients to build and refine any element of a comprehensive wetland program, proposals that address one or more of the three national priorities (Wetland Program Planning Based on the Four Core Elements, Regulation-Enhancing Wetland Protection andlor Monitoring and Assessment) may increase their chances of being selected. States, tribes, local government agencies, interstate agencies, and intertribal consortia are eligible to apply under this announcement. Universities that are agencies of state government are eligible. Non-profit organizations are not eligible to compete under this RFP.
66.480 Assessment and Watershed Protection Program Grants To support the coordination and acceleration of research, investigations, experiments, training, demonstrations, surveys, and studies relating to the causes, effects (including health and welfare effects), extent, prevention, reduction, and elimination of water pollution. The two main goals of the Assessment and Watershed Protection Program Grants (AWPPGs) include supporting a watershed approach to better address water quality problems in the U.S. and building the capacity of all levels of government to develop and implement effective, comprehensive programs for watershed protection, restoration, and management. Funding under this program area includes: WatershedJTotal Maximum Daily Load (TMI)L) Program - (1) Assessment and TMDL Workshops; (2) Impaired Waters Recovery and Results Analysis; (3) Tools and Products Training for the Watershed Approach; and (4) Tools, Incentives and Trainings that Foster Financing of Water Quality, Habitat Restoration/Protection on a Watershed Scale. Nonpoint Source Program - (1) National Conference and Outreach Program to Promote Clean Lakes. hPSW & V-1S LLC age Beaver Dam Creek Watershed Management Plan Final Report
10.904 Watershed Protection and Flood Prevention To provide technical and financial assistance in carrying out works of improvement to protect, develop, and utilize the land and water resources in watersheds. Technical assistance is provided in designing, arid installing watershed works of improvement. Financial assistance is provided for sharing costs of measures for watershed protection, flood prevention, agricultural water management, sedimentation control, public water based fish, wildlife, and recreation; and in extending long term credit to help local interests with their share of the costs. Watershed area must not exceed 250,000 acres. Capacity of a single structure is limited to 25,000 acre-feet of total capacity and 12,500 acre-feet of floodwater detention capacity.
3. EPA Watershed Academy www.epa.gov/owow/watershedJwacademy/fund.html Funding is available under a variety of programs, including the Aquatic Ecosystem Restoration (CAP Section 206) Program, Clean Water State Revolving Fund, the U.S. Fish and Wildlife Service Coastal Program, the USDA Natural Resources Conservation Service’s Environmental Quality Incentives Program (EQIP), Five-Star Restoration Program, the U.S. Fish and Wildlife Servic&sNational Coastal Wetlands Conservation Grant Program, the National Integrated Water Quality Program (NIWQP), Nonpoint Source Implementation Grants (319 Program), North American Wetlands Conservation Act Grants Program, Water and Waste Disposal Systems for Rural Communities, Wetlands Program Development Grants, Wetlands Reserve Program and the Wildlife Habitat Incentives Program (WHIP).
4. NYS Conference of Mayors and Municipal Officials — Grant Link www.nycom.org/ Supports projects that lead to measurable pollution prevention and economic development results. Applications are accepted on an ongoing basis. Sponsored by the NYS Department of Environmental Conservation.
5. New York State Conservation Partnership Program http ://www.landtrustalliance.org/community/Regions/northeastlnyscpp
IEPW age ENPt1CNT.L. • PLI$NQ. Beaver Dam Creek Watershed Management Plan Final Report
New York State Conservation Partnership Program (NYSCPP) is funded through the Environmental Protection Fund and administered by the Land Trust Alliance in coordination with the New York State Department of Environmental Conservation. Since 2002, the program has invested in more than 200 projects with 64 land trusts working in urban, suburban, and rural communities across the state, from Harlem to the Adirondacks. Conservation Partnership Program grants are intended to help New York’s land trust community build professional capacity, strengthen community partnerships, accelerate the pace of land conservation, and implement best business practices. Grants are available in four categories: conservation catalyst, conservation transaction, professional development, and capacity and excellence.
6. New York Clean Water State Revolving Funds http://www.nysefc.org The Clean Water State Revolving Fund (CWSRF) was established to help finance facilities that protect, maintain or improve water quality. The CWSRF provides interest-free short-term and low interest rate long-term financing to recipients to finance planning, design, and construction of eligible water quality projects. Since 1991, the Clean Water SRF has provided approximately $12.68 billion in financing and $1.19 billion in subsidies for more than 1,300 water quality related environmental projects in New York State. It is administered by Environmental Facilities Corporation (EFC) in partnership with the New York State Department of Environmental Conservation. The Drinicing Water SRF is jointly administered by EFC and the State Department of Health (DOH). Since 1997, the program has provided more than $2 billion in low-cost financing and grants, and $135.3 million in subsidies for 541 drinking water improvement projects throughout the State.
NELSCN PE VD-lS LLC g 5-20 • PA!’t’l . CN8Tr’G Beaver Dam Creek Watershed Management Plan Final Report
SECTION 6.0
IEPSW t€l_S4 _ VQ-49 LLC cNvInagtNT.t • PL.M’flNG CONSLLTJG Beaver Dam Creek Watershed Management Plan Final Report
6.0 REFERENCES
Brookhaven Town. 2007. Geographic Information Systems (GIS) data.
Brookhaven Town. 2008. Code of the Town of Brookhaven, County of Suffolk, State of New York. General Code Publishers Corp., Rochester, NY.
Brookhaven Village Association. 2009. Brookhaven Village Association Website. Accessed March 7, 2009. http://www.brookhavenvil1ageassociation.org/.
Camp, Dresser & McKee (CDM). 2003. Suffolk County Groundwater Model. Final report prepared for Suffolk County Department of Health Services, October 2003.
Dermody, Peter. 2009. Letter of preliminary findings to Post-Morrow Foundation concerning evaluation of data for Beaver Dam Creek.. Dermody Consulting. May 28, 2009.
Dietz, John. 2009. Brookhaven/Southaven Hamlets Website. Accessed March 7, 2009. http://brookhavensouthhaven.org/
Dvirka and Bartilucci. 1986. Suffolk County Comprehensive Water Resources Management Plan. Volumes] and 2. Suffolk County Health Services Department, Hauppauge, NY.
EPA, 2007. What is Non-Point Source (NPS) Pollution? EPA’s Polluted brochure EPA-841-F- 94-005, 1994. Accessed July 8, 2008. http://epa.gov/owow/nps/ga.html
Federal Emergency Management Agency. 1997. National Flood Insurance Program, Flood Insurance Rate Maps, Suffolk County, NY.
Fuller, Myron L., 1914. The Geology of Long Islanc4 Department of the Interior, U.S. Geological Survey, Professional Paper 82, Government Printing Office, Washington, DC.
Guthrie, Chart. 1996. Results of 1996 Electrofishing Data for Beaver Dam Creek, Brookhaven, NY. NYSDEC, Region 1 Headquarters, Bureau of Fisheries, Stony Brook, NY.
Guthrie, Chart. October 2007. Personal communication. NYSDEC, Region I Headquarters, Bureau of Fisheries, Stony Brook, NY
Guthrie, Chart. 2009. Personal communication. NYSDEC, Region 1 Headquarters, Bureau of Fisheries, Stony Brook, NY.
Jensen, H.M. and Julian Soren, 1974. Hydrogeology of Suffolk County, Long Island, New York, Hydrologic Investigations Atlas, Department of the Interior, U.S. Geological Survey, Washington, DC.
pe Page 6-1 r.a.4 PE & VIS LLC ErW,QE1ET’41AL. . CCNLrrG Beaver Dam Creek Watershed Management Plan Final Report
Koppelman, Lee. 1995. Brookhaven/Southaven Hamlet Study. November. Accessed March 6, 2009. http://brookhavensouthhaven.org/Ham1etStudy/Ham1etStudy.htm.
Kritzer, Jake. May 2007. Personal communication. Environmental Defense, New York, NY.
Kritzer, J., A. Hughes, and C. O’Reilly. 2007. Monitoring Alewife Runs in the South Shore Estuary Reserve: Report on the 2006 Volunteer Survey. Environmental Defense and South shore Estuary Reserve Office.
Long Island Regional Planning Board (LIRPB). 1990. Evaluation of Land Use Impacts on Environmental Quality in Urban and Semi-rural Streams Tributary to Great South Bay, Long Island, New York.
Long Island South Shore Estuary Reserve Council. 2001. Long Island South Shore Estuary Reserve Comprehensive Management Plan. SSERC: Long Island, NY. April.
McMahon, T. 2002. Beaver Dam Creek Watershed Analysis. Suffolk County Soil and Water Conservation District. Unpublished Report.
New York State Department of Environmental Conservation. 2008. New YorkState Stormwater Management Design Manual.
New York State Division of Water. 2002. The 2000 Atlantic Ocean/Long Island Sound Basin Waterbody Inventory and Priority Waterbodies List, Volume 2: Nassau and Suffolk Waters. Accessed March 5, 2009. http://www.dec.ny.gov/chemical/3 6748.html.
Nelson, Pope & Voorhis. 2008. Inventory and Analysis of Barriers to Fish Passage for Six Long Island South Shore Estuary Reserve Tributaries. Prepared for the New York State Department of State Division of Coastal Resources.
New York State Department of State Division of Coastal Resources. 1987. Significant Coastal Fish and Wildlife Habitat Rating Form - Beaver Dam Creek. New York State Department of State, Albany NY.
Peconic Baykeeper. Bayscaping Initiative. Accessed March 5, 2009. http://www.peconicbaykeeper.org.
Smolensky, D.A., H.T. Buxton and P.K. Shernoff. 1989. Hydrologic Framework of Long Island, New York, Hydrologic Investigation Atlas, Department of the Interior, U.S. Geological Survey, Washington, D.C.
Suffolk County Department of Health Services. 2008. Beaver Dam Creek, Brookhaven, N Y. Status and Trends in Water Quality. Yaphank, New York. 60 pp.
Suffolk County Soil & Water Conservation District (SWCD). 2003. Watershed delineation of Beaver Dam Creek. Riverhead, NY.
Page 6-2
OE £ V-S. LC ENVIRO’IVENTAL • PLAfl.JIPG . Cc,’srrlrc Beaver Dam Creek Watershed Management Plan Final Report
Suffolk County Real Property Tax Service Agency. 2007. Tax Maps.
USFWS (U.S. Fish and Wildlife Service). 2005. Anadromous Fish Use in Long Island Streams (electronic GIS data layer). U.S. Fish and Wildlife Service, Charlestown, RI.
Voorhis, Charles & Associates, Inc. 1996. Stormwater Inventory for South Shore Bays, Town of Brookhaven. August 30.
Warner, J.W., W.E. Hanna, R.J. Landry, J.P. Wulforst, J.A. Neeley, R.L. Holmes, C.E. Rice. 1975. Soil Survey of Suffolk County, New Yorlç Washington, D.C.: U.S. Department of Agriculture, Soil Conservation Service, in cooperation with Cornell Agriculture Experiment Station, U.S. Government Printing Office.
Wexler, E.J. 1988. Ground-water flow and solute transport at a municipal landfill site on Long Island, New York -- Part 3, simulation of solute transports US. Geological Survey Water Resources Investigations Report 86-420 7, 46 p.
Page 6-3
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\ Creek Dam Beaver
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AREAS CLOSURE SHELLFISH NYSDEC
2-9 FIGURE
______
CONSULTING PLNNING • ENVIADNMENTAL •
VCDfl. & LLC PF Nfl flON. hPSW
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feet 1,000 inch 1 =
2007 2004; Date:
Inventory Barriers NPV
Program, Orthoimagery NYSGIS Source:
L.._..._.! Villages and Towns
Creek Dam Beaver
Railroad
Boundary Watershed
Temporary
Permanent +
None +
BARRIER
CROSSINGS SSER
Legend
Plan Management Watershed
Creek Dam Beaver
Reserve Estuary Shore South
and
State of Department York New
INVENTORY BARRIER FISH 2007
2-10 FIGURE
CCSULTtNG
PLANNING • ENVff9OE4ENTAL •
C I I VOORHIES E POPE State LSON. IEPSY
Wetlands Tidal
Bay
State
Preserve
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Brookhaven of Town Source:
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Dennis
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Land Owned County Suffolk
Refuge
Land Owned State
Wildlife
National Land Owned Federally
Wert helm
Dam Creek Beaver
Property
District
Fire Highway Sunrise
Roads Main
and Villages Towns
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Area Historic Hamlet Brookhaven
Boundary Watershed
Legend
Plan Management Watershed
OL
Creek Dam Beaver 4)’
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and
of State Department New York
LANDS OWNED PUBLICLY
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Brookhaven; of Town Source:
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Parks,
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Utilities
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Agricultural
Use Land
Highway Sunrise
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and
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MAP USE LAND
2-12 FIGURE ______
FIGURE 2-13 ZONING MAP
Al Al New York Department of State and Al,AiM South Shore Estuary Reserve
Al AlAl.
Al Al Al Al
Beaver Dam Creek Watershed Management Plan
Al A1 Legend
Watershed Boundary
Towns and Villages
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/ AlO Al Al Al\Al A2 A2 A2 BeaverbroQk Al Al Al A5 LVEN B
J2
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L2
ROW
Al
Al
A2 I Al
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Creek Beaver Dam
Boundary Watershed
Basins Recharge
•
Flow Overland
El Basins Catch
Component Infrastructure Stormwater
Inventory Stormwater
Areas Subwatershed
Legend
‘IA
Plan Management Watershed
Creek Dam Beaver
,I/ L.
I
4*
Reserve Estuary Shore South
‘?:
and - ‘
State of Department York New
INVENTORY WATER STORM
2-14 FIGURE
LQNSULTINN
LLANNIN ENVRUNMNT4L.
LCD VNHiS, SDN, POPF Nfl kPSW
2007 2004; Date:
Inventory Barriers NPV
Program, Orthoimagery NYSGIS Source:
+
feet 600 1 inch =
i! Villages and Towns
Creek Dam Beaver
Railroad
Boundary Watershed
Basins :! Recharge
Outfalls
Flow Overland
lI Basins Catch
Component Infrastructure Stormwater
:
Inventory Stormwater
Areas Subwatershed 4
Legend
‘fr
Plan Management Watershed
Creek Dam Beaver
I
Reserve Estuary Shore South
and
State of Department New York
INVENTORY WATER STORM
2-14a FIGURE — FIGURE 2-14b STORMWATER INVENTORY
New York Department of State and South Shore Estuary Reserve
Beaver Dam Creek Watershed Management Plan Legend Subwatershed Areas Stormwater Inventory Stormwater Infrastructure Componeni H Catch Basins Overland Flow Outtalls Recharge Basins Watershed Boundary —i-—— Railroad Beaver Dam Creek Towns and Villages
1 inch = 800 feet + NYSGIS Orthoimagery Program, NPV Barriers Inventory Date: 2004; 2007
NF ‘NN’J. P(F VmNrNS [C L(WFf. N I • PL’4N • L.CSt iM
ING LDNU
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+
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N
Villages and Towns
Creek Dam Beaver
Railroad —4——
Boundary Watershed
Basins Recharge
Outfalls
Flow Overland
El Basins Catch
Componen Infrastructure Stormwater
Inventory Stormwater
Areas Subwatershed
Legend
Plan Management Watershed
Creek Dam Beaver
Reserve Estuary Shore South
and
StatE of Department York New
INVENTORY STORMWATER
2-14c FIGURE Beaver Dam Creek Watershed Management Plan Final Report
APPENDIX A
Priority Waterbodies List (PWL) Report Excerpt
IEPSW t’J PcE & VD-S LLC ENRQ’NT& • P .‘IING • Seg Seg Seg Seg Seg
Seg Seg Seg
Seg Seg
Seg Seg
Seg Seg Seg Seg Seg Seg
Seg Seg
Seg Seg Seg Seg
Seg
Vei-iuic
Verit’ic
Category
Impacted Impacted Impacted Impacted UnAssessed Impacted Impacted Need Impacted Impacted impacted Impacted UnAssessed UnAssessed Need
Impacted Impacted UnAssessed Impacted hnpacted Impacted Impacted Impacted Impacted
NoKnownlmpct UnAssessed Impacted Impacted UnAssessed UnAssessed NoKnownlmpct
UnAssessed Impacted NoKnownlinpct UnAssessed Impacted Impacted UnAssessed Impacted UnAssessed UnAssessed Impacted
UnAssessed
(1701-0324)
03)
tribs
100)
(1701-0313)
(1701-0303)
(1701-0371)
(1701-0306)
(1701-0312)
(1701-0099) and
(1701-0321)
(1701-0102)
(1701-0098)
tribs
(1701-01
Bay
(1701-0316)
(1701-0329)
(1701-0309)
Bay (1701-0327)
Bay
(1701-0
(1701-0101) tribs
tribs
tribs
(1701-0319)
(1701-0311)
(1701-0026) ttibs
tidal
Lower,
tribs 1) Watershed
Bay
(1701-0040)
Bay/Canal
Cove Bay
and
tribs
and tribs
Coves
and (1701-0173)
(1701-0039)
Bay
and
and
and
(1701-0038)
Pond
(1701-0305)
and
(1701-0325)
14)
Ponds and
Moriches and
Moriches
188
Creeks, (1701-0104)
(1701-0307)
East
Middle West
Segment
Upper,
(1701-0055) Lower,
Upper,
East West
(1701-0042)
(1701-0326) (1701-033
Seatuck
Quantuck Mill Upper,
Patchogue
East
Lower, Narrow
(1701-0304) Upper,
Patchogue
West
Lower
(1701-0320) (1701-0330)
Upper (1701-0018)
(1701-0318)
Bay, Bay, Bay, (1701-0322)
to to
Upper,
(1701-0323)
to
Pond
Upper,
to
(1701-0135)
Creek
to
(1701-0332)
to
(1701-03
Bay (1701-0334) Canal/Moneybogue Bay
(Eastport)
Bay,
Lake Bay, River,
Island
East
Pond
River, River,
Bay
Pond
Harts,
Bay
Creek,
Lake
River, River,
Lake
Lake
River,
Lake
Tribs Tribs
Tribs South South
tribs Creek, South Lake
Tribs
and
River, Lake
Tribs
Lake
Pond
Creek,
Ice
Waterbody
Quantuck
Tidal Old Quantuck
Moriches Tuthill,
Moriches Tidal Forge
Tidal Beaverdam Terrell Unnamed Terrell West Mill Narrow Tidal Great Great Great
Carmans
Beilport Carmans
Patchogue
Artist Lower Upper Beaverdam/Motts
Beaverdam Tidal Motts Swan Minor Swan Dunton Mud Robinson Canaan Tuthills Patchogue Patchogue West
Long
160
Bay
168
175
188 187
1) 1)
2) 3) 3) 2) 4) 4)
tlm.t
thru
thru
thru thru
62-P837
68a
Moriches
(portion
(portion (portion (portion (portion (portion (portion (portion (portionS)
Shore
Number
to
Bay
Bay
AO-QB AO-SB-QB-158-P835a
AO-SB-QB-157
AO-SB-QB-QtC AO-MB AO-MB AO-lvIB
AO-MB AD-MB-I
AO-MB-160a
AO-MB-167-P840b
AO-MB-170 AO-MB-NB-175a--176d AG-MB-I AO-MB-NB AO-MB-170-P847 AO-MB-170
AO-MB-174-P8501P851
AO-GSB AO-GSB
AO-GSB AO-GSB Index AO-GSB-177 AO-GSB AO-GSB-177-P856
AO-GSB-177-P855 AO-GSB-178
AO-GSB-BB-177-P863
AO-GSB-178,179 AO-GSB-179 AO-GSB-180 AO-GSB-181 AO-GSB-181-P881 AO-GSB-183 AO-GSB-183-P883 AO-GSB-184-P884 AO-GSB-184 AO-GSB-185-P885 AO-GSB-185 AO-GSB-185-P889 AO-GSB-186 AO-GSB-186-P890
South
...South
Water (MW7.lc) Shinnecock
(MW7.lc) (MW7.lc) (MW7.2a) (MW7.lc) (MW72a)
(MW7.2a) (MW7.2a) (MW7.2a) (MW7.2a) (MW7.2a) (MW7.2a) (MW7.2a) (MW7.2a) (MW7.2a) (MW7.2a) (MW7.2b) (MW7.2b) Great (MW7.3)
(MW7.3) (MW7.4) (MW7.3) (MW7.3) (MW7.3) (MW7.4) (MW7.4) (MW7.4) (MW7.5) (MW7.5) (MW7.4) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5) (MW7.5)
j
Sewers Storm Runoff, Urban Sources:
Silt/Sediment
Nutrients,
Causes:
STRESSED be to
KNOWN Life Aquatic Minorlmpacts
C(TS)
River
Mile
4.0
Suffolk
(1701-0099) tribs and Upper,
River,
Patchogue AO-GSB-185 (MW7,5)
Runoff Urban Sewers, Storm Sources:
Nutrients
Causes:
IMPAIRED be to
Seg KNOWN Life Aquatic
Impaired
C(TS)
River
Mile 4.0
Suffolk
(1701-0100) tribs and
Upper, River,
Swan AO-GSB-184 (MW7.5)
Sewers
Storm
Runoff,
Urban
Source, Other
Sources:
STRESSED be to
KNOWN
Recreation
Pathogens
Demand,
D.O./Oxygen
Causes:
STRESSED be to
KNOWN Life Minorimpacts
Aquatic SC
Estuary
Acre 500.0
Suffolk
1-0327) (170
Bfty
Patchoguc to
Tribs
(sel.)Tidal 188 thru AO-GSB-180 (MW7.5)
Sewers
Storm
Runoff, Urban Source, Other Sources:
Pathogens
Causes:
STRESSED
be to
KNOWN Minorimpacts
Recreation
SC
Estuary
Acre 10.0
Suffolk
(1701-0324) tribs
and
Lower, Creeks,
BeaverdamfMotts
AO-GSB-178,179 (MW7.5)
Runoff
Urban Source, Other Sources:
Pathogens
Causes:
STRESSED be
to Minorimpacts KNOWN
Recreation SC
Estuary
Acre
350.0
Suffolk
(1701-0321)
tribs and
Lower, River,
Carmans
AO-GSB-177 (MW7.4)
STRESSED be to KNOWN Recreation
STRESSED be
to
KNOWN
Consumption
Fish
Sewers
Storm
Runoff,
Urban
Source,
Other
Sources:
STRESSED be to
KNOWN Bathing
Public
Pathogens
Causes:
IMPAIRED be
to
Seg KNOWN Impaired
Shellfishing SA
Estuary
Acre 3200.0
Suffolk
(170l-0326) Bay
Patchogue
5) (portion AO-GSB (MW7.3)
SOUND ISLAND LONG OCEAN/ ATLANTIC
Information Cause/Source
Impairment(s)
Use
W.B.Category
Class
Type
Size
Seg
County
(ID) Name
Waterbody/Segineut Number Index Water
Waterbodies PWL
I
II
—.
LJ L_ -
L LJ L_ L_J L_-J _J
______