Connetquot River Watershed Sewer Project Meeting #3

1. Connetquot River Watershed Sewer Project Presented by P.W. Grosser Consulting on behalf of Suffolk County Department of Public Works December 12, 2018

2. Agenda  Project Introduction  Project Recap – Why, How, Costs  Low Pressure Technology - Benefits  Projected Cost to Residents  Important Dates  Questions

3. Project Team  Suffolk County Department of Public Works  P.W. Grosser Consulting – Project Engineer  CJ2 Communications – Community Outreach  The LiRo Group and B. Thayer Associates – Survey Team

4. Suffolk County Coastal Resiliency Initiative  In 2015 Suffolk County completed its Comprehensive Water Resources Management Plan  Among the projects recommended in the plan were four sewer projects in river corridors along the south shore:  Carlls River  Connetquot River  Forge River  Patchogue River

5. SCCRI Sewer Project Goals  Eliminate nearly 7,000 cesspools and septic systems by connecting parcels to sewer systems - 465 in Great River alone  Improve Water Quality in the Connetquot River and Great South Bay  End need for homeowners to pump or replace cesspools and septics  Entire construction cost funded through state and federal grants

6. Funding Sources  Hazard Mitigation Grant Program (FEMA)  Community Development Block Grants (HUD)  Empire State Development Grant  Clean Water State Revolving Fund  NYS Water Quality and Capital Programs

7. Brown Tide Great South Bay Photo credit: patch.com

8. Nitrogen Loading to Great South Bay Golf Courses 1% Agriculture 1% Lawns 7% Sewage Treatment Plants 1% Atmospheric Deposition 21% Septic/Cesspool Systems 69% Great South Bay Data sources: U.S. Geological Survey, Suffolk County Division of Planning & Environment, Peconic Estuary Program, National Atmospheric Deposition Program, U.S. EPA, U.S. Census Bureau References: Kinney, E. L. and I. Valiela. 2011. Nitrogen loading to Great South Bay: land use, sources, retention, and transport from land to bay. Journal of Coastal Research, 27(4), 672–686. Kinney, E. L. and I. Valiela. 2011. Nitrogen loading to Great South Bay: Report on Phase 2 Management Scenarios. Report to the NY State Department of State Division of Coastal Resources. Photo credit: patch.com

9. Nitrogen: Water Quality Enemy #1  Why the project is important – the impact of nitrogen pollution : Citizens Campaign for the Environment/The Nature Conservancy  Studies indicate cesspools and septic systems are the primary source of Nitrogen in Great South Bay  Excess nutrients cause harmful algal blooms like red tide and brown tide, making it impossible for come forms of marine life to survive  Connecting homes to sewers eliminates hundreds of cesspools and septic systems, improving water quality  Once in a lifetime opportunity to use grant funding to connect 465 homes  Great River project is first step towards possible sewering of Oakdale

10. Low Pressure – A Proven Technology  Significant cost savings compared to gravity collection system  Smaller size of pipe makes installation less disruptive to community  Systems are typically completely sealed, preventing leaks and spills  Potential for odors dramatically reduced  County due diligence review of LPS technology completed in 2018  Thousands of homes using LPS technology in northeast United States  Village of Patchogue is closest example and has had no issues

11. Cost-efficient Low Pressure Technology Low Pressure Sewer Systems convey wastewater from your home to the regional wastewater treatment facility. Unlike a gravity connection, Low Pressure Sewers use a small pump station located at each house to move wastewater through the transmission system. Control panel Cleanout pipe Low pressure force main (in public right-of-way) Collection tank Grinder Pump

12. Project Area Collection System Layout

13. Project Costs Estimated Conservatively  Detailed line-by-line cost estimate completed in 2018  Based upon recent bid results and manufacturer list prices  Contingency factor added to estimate as additional protection  Estimate also includes inflation escalation to midpoint of construction  Design team has a high level of confidence in cost projections  Actual cost can only be determined if and when contract is let

14. Project Costs Carefully Estimated Item Estimated Cost $ 9,924,000.00 Work on Private Property (with Contingency) 3% Escalation Cost Compounded Annually at Midpoint of Construction Surveys, Title Searches & Other Real Property Costs Private Property Related Total $ 604,000.00 $ 1,828,000.00 $ 12,356,000.00 Work on Public Property (with Contingency) $ 8,746,000.00 3% Escalation Cost Compounded Annually at Midpoint of Construction Public Property Related Total $ 532,000.00 $ 9,278,000.00 Total Construction Phase Project Costs Engineering Design Construction Management Project Cost Total* Empire State Development Grant SCCRI Grants Project Costs, Net of Grant Funds $ 21,634,000.00 $ 1,816,808.00 $ 954,480.00 $ 24,405,288.00 $ -600,000.00 $ -22,588,480.00 $ 1,216,808.00 100% of Construction Cost Covered by Grant Funding 95% of Overall Project Cost Covered by Grant Funding

15. Projected Costs to Typical Homeowners Debt Service District Charges Total Amount $119.34 $634.41 $753.75* *Because district charges are based in part on the assessed value of individual properties, these charges will vary. This example reflects the mode, meaning the most frequently occurring assessed value as shown on the latest completed final assessment role.

16. Project Timeline Continue Design Work - December 2019 Contract Bidding – January 2020 Construction Begins – August 2020

17. Important Dates Next Meeting – January 16, 2019 at 7pm Public Referendum – January 22, 2019

18. Thank You Questions? Project Website https://cssewers.net/