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Shores Estates Subdivision Sewer Facility Plan1　　　　　　　　　　　　　　　　　RESOしuTION NO。 2020-13 ま A RESOLu¶ON OF THE Vi」リ\GE COUNC看L OF軸IA肌SHOR各S 3　　　　　vIL」ÅG岳, F」O則DA APPROVINcIADoPTiNG TH各軸lÅ棚SHORES :　:器品龍器謄芋owDING隅田LS;伽PRov-DING WHたREAS, A Commu皿y PIanning Technical Assistance g略nt WaS P調両ded through the FIo問a Depa巾1ent of E∞nomic Opportunfty (DEO) pursuan=o section 163.3168,円orida Statutes (F.S.), and Specific App「op両tion Chapte「 2019 ・ Laws of Fiorida, to develop a Sewer Facilfty Pian (PIan) associated with eliminating se帥c tanks and developing i血ast「ucture options to ∞nneCt the Shores Estates §u関ivision to a pub看ic wastewate「 §ystem fo「 imp「oved public health and safety; and WHERたAS章Miami Shores VIl書age’s rVIllage籍) retained the servi∞s Of KimIey-Hom and Associates, Inc. (一IKim!ey-Hom’) on October 4, 201 9 to p「ovide profes§ional enginee血g services to the VIIIage pu購uanl∥0 “P○○fessional Enginee血g Servi∞S fo「 a Sewe「 Facilfty Pian fo「 the Shores Estates Subdivi§ion事RFQ No. 201 9-05巾l”; and WHEREAS, Kimley-Hom prepared a Sewer Facilfty Plan pe「 Miami-Dade County and the Fiorida Department of Envi「onmental P「otection喝guiat○○y requirement§, Conducted t面o (2) Public wo「kshops, deveIoped a proposed comprehensive plan amendme時and addressed DEO review c○mments to establish the framework and p「OVide suppor[ fo「請e prQject. NOW, THEREFORE, BE IT DU」Y RESOいIED甘Y THE鵬IÅ肌SHORES Vlし∪しGE COuNClし, as folIowsこ Se(抽on l. Section 2, 蝉丁he above Recitals are tれIe and ∞m貼and inco町側ralted herein by this refe「ence. A臼かroVa腑rdootion of the §ew晦r Fac鞘tv Plan. The Sewer Fac叩y Plan, attached he陶to as Exhi聞1. is hereby approved. 堅邸　　壁fective Da垣≡ ¶Tis Reso山tion sha∥ take effect immediately upon adoption, Passed and Adopted伽is Jfi day of.山ne. 2020. Page宣ofま Page 2 of2 Septic to Sewer Planning Study Miami Shores Village Shores Estate Subdivision May 2020 Project Number: 044448010 Prepared for: Miami Shores Village Public Works Department 1701 NW 103rd Street Miami, FL 33147 Prepared By: Kimley-Horn & Associates 600 North Pine Island Road, Suite 450 Plantation, Florida 33324 Septic to Sewer Planning Study For Miami Shores Village KHA Project Number: 044448010 May 2020 Prepared For: Miami Shores Village Public Works Department 1701 NW 103rd Street Miami, FL 33147 Stefano F. Viola, P.E. FL P.E. Lic. No. 74655 Kimley-Horn & Associates, Inc. CA Number 00000696 600 N. Pine Island Road, Suite 450 Plantation, Florida 33324 (954) 535-5100 Miami Shores Village Shores Estate Septic to Sewer Planning Study ES-1 May 2020 EXECUTIVE SUMMARY Purpose The purpose of the Shores Estate Septic to Sewer Planning Study is to identify projects that will eliminate on-site sewage treatment and disposal systems (OSTDS), commonly known as septic tanks. The Shores Estate Subdivision (Subdivision) within Miami Shores Village (Village) was identified in both the Miami- Dade County Septic Study and the Miami Shores Village Environmental Vulnerability Study as a high priority for septic to sewer conversion due to current flooding and septic tank failure during high tides. This septic to sewer conversion effort will meet legislative and regulatory requirements and provide resiliency to the combined effects of sea level rise, high t ides, storm surge, elevated ground water, and heavy rainfall. The septic systems in the Subdivision have a high potential for environmental contamination and create a potential health risk to the public. As a result, eliminating the OSTDS will alleviate the threat to public health and safety. Additionally, the conversion will provide a significant environmental benefit to our local waterways, most notably Biscayne Bay (Bay), by reducing Total Nitrogen (TN) from the aquifer. The Shores Estate neighborhood is currently serviced by the City of North Miami Winson Water Plant for water supply. Once the Subdivision is converted from individual septic sewer systems to a neighborhood wide sewer system, it will be owned and maintained by the City of North Miami. The expansion of the City’s sewer system is consistent with responsible utility growth and will provide necessary infrastructure. Legislative and Regulatory Background An estimated 2.3 million OSTDS serve 31% of Florida residents and visitors. These systems discharge over 426 million gallons of treated effluent per day into the subsurface soil environment. In recent years, many areas in South Florida are experiencing more frequent and more severe coastal flooding. This flooding will not only cause damage to buildings but may also result in malfunctioning septic systems and obstructed roads causing extreme hardships to residents. Septic system failures within the Shores Estate neighborhood represent a potential public health hazard and water quality concern. The installation of central sewer will help alleviate the threat to public health and pollutant overloading to the Bay. On October 5, 2016, the Miami-Dade County Board of County Commissioners passed Resolution No. R- 91 1-16, which directs the Mayor or Mayor's designee, "to study and assess how sea level rise may affect se ptic systems in Miami-Dade County, and to prepare a report. The report shall, at a minimum, identify: (I) how septic systems may be affected by sea level rise; (2) the potential risks involved; (3) areas of the County that could be most impacted; (4) recommendations on how best to eliminate the vulnerability of septic systems to sea level rise; and (5) recommendations as to any further legislative or administrative action that may be necessary to address the vulnerabilities and problems identified, includin g, but not limited to, seeking funding from the state for purposes of carrying out the objectives of this item." The Shores Estate neighborhood was identified in both the Miami-Dade County Septic Study and the Miami Shores Environmental Vulnerability Study as a high priority for septic to sewer conversion due to current flooding and septic tank failure during high tides. As per 64E-6.006, F.A.C., “the existing lot elevation at the site of the proposed system installation and any contiguous land referred to in subsection 64E-6.005(4), F.A.C., shall not be subject to frequent flooding.” Septic to Sewer Project Description The residences within the Shores Estate neighborhood rely on septic systems and drain fields for treatment and disposal of wastewater. Low-lying areas and a high-water table present difficult conditions for efficient on-site wastewater treatment. Properly functioning septic systems dispose of the treated wastewater through drain fields located above the groundwater table. Many of the drain fie lds bordering the canal are lower than the water elevation in the adjacent canal. As the groundwater table rises, the effectiveness of the drain fields will diminish, and eventually fail. Miami Shores Village Shores Estate Septic to Sewer Planning Study ES-2 May 2020 The Shores Estate Subdivision includes ninety-eight residential homes, two vacant lots, and approximately one hundred septic tanks, within 26 acres that are bounded by NE 107th Street to the north, Biscayne Canal C-8 to the south, US 1 to the east, and Miami Shores Golf Club to the west. The intent of this project is to replace the existing septic tanks with a wastewater collection system and associated pump station so that wastewater from the Shores Estates Subdivision will be transmitted to the City of North Miami’s wastewater system and then pumped to the Miami-Dade Water and Sewer Department’s North District Wastewater Treatment Plant (NDWWTP) for disposal through the use of deep injection wells. Alternative Sewer Analysis Conventional gravity sewer and vacuum sewer were considered as alternatives for wastewater conveyance when determining the feasibility of transferring wastewater flows from on-site septic and disposal systems to the NDWWTP. Both of these alternatives rely on the downstream treatment facility for treatment of all wastewater collected (i.e. no treatment takes place on site). A “do nothing” alternative was also evaluated. However, based on the age of the septic tanks in the Subdivision and associated groundwater levels, any septic tank(s) that does fail will pose a significant threat to the public health and safety of the Subdivision residents. The alternative analysis consisted of five processes to review, rank, and select the most effective sewer collection system for the Shores Estate Subdivision. Cost, operation and maintenance feasibility, and construction feasibility were considered when selecting the sewer collection system. The first step was to evaluate the existing condition of the Shores Estate neighborhood. The number of existing septic tanks, type of land uses, condition of roads, and distance of the residences from the road were considered in this step. The second step was to determine the available existing sewer connections. This required the compilation and evaluation of as-builts, GIS data, and staff knowledge to identify the existing sewer throughout the Village, the City of North Miami (City), and Miami-Dade County Water and Sewer Department (MDWASD). Once this was accomplished, optimal points of connection for the proposed sewer collection systems were identified. The third step was to lay out a proposed sewer for each alternative within the Shores Estate Subdivision. This was a conceptual plan but was completed to sufficient detail to allow for preliminary opinions of probable cost to be performed. The fourth step was to develop preliminary opinions of probable cost for each alternative . The costs are based on best available data for construction costs. This data was obtained fr om prior construction bids, vendors, and professional engineering judgment. In addition to construction costs, th e opinions of probable cost also include design and permitting estimates. The fifth step was to select the recommended sewer collection system alternative. As mentioned above, this selection was based on cost, operations and maintenance, and construction f easibility. The recommended systems and the associated opinion of probable cost are discussed below. Recommended Sewer Collection System A conventional gravity sewer system is recommended for the Shores Estate Subdivision. This alternative is the most cost-effective and feasible as the topography of the region facilitates the use of gravity sewer piping and a single lift station. The proposed wastewater improvement project includes a gravity sewer system installed through the Shores Estate Subdivision. That wastewater collection system would flow to a new submersible wastewater pump station and associated force main for connection to an existing 12” force main owned by the City of North Miami. Wastewater flows from the City of North Miami’s system ultimately discharge into the Miami-Dade County NDWWTP. The total preliminary opinion of probable cost for installing gravity sewer and water service in the Shores Estate Subdivision is approximately $2 million. Miami Shores Village Shores Estate Septic to Sewer Planning Study i May 2020 TABLE OF CONTENTS 1. PROJECT PLANNING ........................................................................................................................... 1 2. REGULATIONS AND LEGISLATIVE REQUIREMENT S ....................................................................... 8 3. PROJECT DESCRIPTION AND EXISTING CONDITIONS ................................................................. 10 4. ENVIRONMENTAL REVIEW AND PROJECT JUSTIFICATION ......................................................... 10 Environmental Effects ....................................................................................................... 10 Environmental Assessment .............................................................................................. 12 5. ALTERNATIVE ANALYSIS .................................................................................................................. 13 Alternatives Considered – Background............................................................................. 13 Design Criteria .................................................................................................................. 14 Net Present Worth Analysis .............................................................................................. 17 6. ALTERNATIVE DESCRIPTION ........................................................................................................... 18 Gravity Sewer System....................................................................................................... 18 Vacuum Sewer System ..................................................................................................... 20 Septic Tank Removal ........................................................................................................ 22 Alternative Sewer Analysis ............................................................................................... 22 7. RECOMMENDED ALTERNATIVE ....................................................................................................... 24 Miami Shores Village Shores Estate Septic to Sewer Planning Study ii May 2020 LIST OF FIGURES Figure 1: Shores Estate Subdivision Conventional Gravity Sewer Alternative ........................................... 19 Figure 2: Shores Estate Subdivision Vacuum Sewer Alternative ............................................................... 21 LIST OF TABLES Table 1: Estimated Project Timeline ............................................................................................................. 2 Table 2: Funding and Project Schedule ........................................................................................................ 3 Table 3: Shores Estate Subdivision Land Use............................................................................................ 10 Table 4: Alternative Comparisons ............................................................................................................... 13 Table 5: Gravity Sewer Inventory ................................................................................................................ 18 Table 6: Vacuum Sewer Inventory .............................................................................................................. 20 Table 7: Opinion of Probable Cost and Net Present Worth Summary ....................................................... 23 Table 8: Gravity Sewer Project Cost ........................................................................................................... 24 LIST OF APPENDICES APPENDIX A: Project Location Map APPENDIX B: Existing Wastewater System Overview APPENDIX C: Comprehensive Development Master Plan (CDMP) Policies APPENDIX D: FDEP Springs Funding Guidance Document APPENDIX E: Nutrient Calculations APPENDIX F: Environmental Considerations APPENDIX G: Detailed Opinions of Probable Cost APPENDIX H: Detailed Net Present Worth Calculations APPENDIX I: Design Considerations – Vacuum Sewer Systems APPENDIX J: Village Public Meetings APPENDIX K: MDWASD Donation Form and Donation/Agreement Example Miami Shores Village Shores Estate Septic to Sewer Planning Study 1 May 2020 1. PROJECT PLANNING The purpose of the Shores Estate Septic to Sewer Planning Study is to identify projects that will eliminate on-site sewage treatment and disposal systems (OSTDS), commonly known as septic tanks. These two terms are used interchangeably throughout this document. This effort is in compliance with and in support of the current statutes of the Florida Department of Health (FDOH), Florida Department of Environmental Protection (FDEP), Miami-Dade County Division of Environmental Resources Management (DERM), Miami-Dade County Water and Sewer Department (MDWASD), Miami Shores Village, Florida – Code of Ordinances, and City of North Miami, Florida – Code of Ordinances. The Shores Estate Septic to Sewer Planning Study has ninety -eight existing homes where sewer service could be extended and OSTDSs eliminated. As illustrated in Appendix A, the 42-acre Subdivision consists of ninety-eight residential homes and two vacant parcels that are bounded by NE 107th Street to the north, Biscayne Canal C-8 to the south, US 1 to the east, and Miami Shores Golf Club to the west. The Shores Estate neighborhood was identified in both the Miami -Dade County Septic Study and the Miami Shores Environmental Vulnerability Study as a high priority for septic to sewer conversion due to current flooding and septic tank failure during high tides. The Village has requested Kimley -Horn to prepare a planning study to facilitate the removal of the septic tanks. This Septic to Sewer Planning Study accomplished the following objectives for the Shores Estate Subdivision: 1. Identified the number of OSTDSs. 2. Identified multi-year phasing/sequencing to support the following: a. Grant Applications b. Design and Permitting c. Construction 3. Identified Existing Infrastructure surrounding the Subdivision. 4. Provided an Alternative Analysis to determine which type of collection system is most feasible based on project cost, operation and maintenance, and constructability. 5. Estimated the costs to design, permit, and construct the selected sewage collection syst em needed to eliminate the OSTDSs. 6. Facilitates future grant applications (FDEP Clean Water State Revolving Fund (CWSRF), etc.) The number of OSTDSs within the Subdivision was identified using the FDOH records for permitted septic tanks, which were also field verified utilizing aerial imagery and site visits. The associated septic tanks are discussed in more detail in Section 4 of this study. The multi-year phasing was necessary to ascertain a viable timeline for funding, designing, and constructing the sew er expansions. The phasing is intended to be sequential with design and permitting (year 1) followed by construction (year 2). It is currently pro jected that OSTDSs will be removed and the new sanitary sewer collection system will be designed, permitted and constructed by 2023, pending grant funding availability and Village budget priorities. Table 1 below is an estimated project timeline, including public participation meetings that have occurred to date for the septic to sewer conversion. The following Table 2 illustrates the Village’s current funding schedule for design and construction costs. Miami Shores Village Shores Estate Septic to Sewer Planning Study 2 May 2020 Table 1: Estimated Project Timeline 2019 2020 2021 2022 2023 TASK DESCRIPTION Project Duration (Months) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Kick-off Facilities Plan and initial stakeholder coordination. 1 Develop Facilities Plan and hold first public meeting with Village residents (see Public Advertisement and Resident Question and Answer Memorandum in Appendix J). 1 Develop Facilities Plan and hold first public meeting with Village residents (see Public Advertisement in Appendix J). 5 Village approval of Facilities Plan. 1 Submit Facilities Plan and loan application to funding agency. 2 Funding agency approves Facilities Plan and design funding. 3 Develop design plans and obtain associated permits. 12 Submit plans and specifications to funding agency for review and approval. 1 Submit construction loan application to funding agency. 1 Funding agreement approved and executed. 3 Advertise project for contractor bids. 2 Award construction contract. 2 Start project construction. 1 Complete construction of the project. 10 Certify project and close out project. 2 Begin loan repayment as needed. 1 LEGEND Funding Design and Permitting Construction Miami Shores Village Shores Estate Septic to Sewer Planning Study 3 May 2020 Table 2: Funding and Project Schedule Project Name Total Project Cost Funding Year 2020 2021/2022 2022/2023 SS OSTDS Planning Study $40,000 State $40,000 Match SS OSTDS Shores Estate Subdivision $1,970,910 State $131,394 $854,061 Match $131,394 $854,061 SUB TOTAL $985,455 STATE $40,000 $131,394 $854,061 $985,455 LOCAL - $131,394 $854,061 GRAND TOTAL $1,970,910 $40,000 $262,788 $1,708,122 LEGEND FUNDED STATE FUNDING SOFT COSTS LOCAL MATCH SOFT COSTS STATE FUNDING CONSTRUCTION LOCAL MATCH CONSTRUCTION Miami Shores Village Shores Estate Septic to Sewer Planning Study 4 May 2020 The existing infrastructure, operated and maintained by the City and MDWASD, was identified utilizing as- built information, geographic information system (GIS) data, available permit information, and coordination with City and County staff. Within Miami-Dade County, there are approximately 730 facilities with private pump stations and approximately 1,420 public pump stations currently in operation. The NDWWTP is an existing 120 mgd annual average daily flow wastewater treatment facility. Additionally, the City currently operates and maintains numerous pump stations throughout their collection and force main systems that pump to the Miami-Dade NDWWTP. The existing collection system is depict ed in Appendix B. Both the City’s and MDWASD’s existing sewer infrastructure systems were evaluated to determine the most economical and feasible tie-in connection. The City has an existing 12” DIP force main along Biscayne Boulevard that discharges into MDWASD lift station PS 347. Connecting to the City’s existing force main with a proposed wastewater collection system in the Shores Estates Subdivision would require approximately 330 linear feet (LF) of proposed 8” force main. As an alternative, the closest MDWASD force main to tie-into is a 12” DIP force main located at NE 91st Street and NE 8th Avenue. Connecting to MDWASD’s force main would require approximately 10,560 LF of proposed 8” force main. System operating pressures are a factor in determining preferred connection points but based on proximity and current water service being provided by the City, the City’s existing sewer infrastructure was deemed the more economical and feasible option. The collection system alternatives considered in this study are a traditional gravity sewer/local lift station system, vacuum sewer system, and a “do-nothing” approach. These systems as well as the force main connection point as discussed above are detailed in Section 4 of this study. An opinion of probable cost was prepared during the alternative analysis to aid in determining the most efficient and economical sewer system design. The opinions of probable cost were prepared utilizing cost information from previous utility construction projects, professional judgment, and vendor supplied costs for parts, equipment, and materials. However, these costs are preliminary and should only be used for comparative purposes within this study. Formal opinions of probable costs should be developed at the time of project design and permitting. As part of developing this facilities plan to implement a wastewater collection system for the Shores Estates Subdivision, the intent of the document is to facilitate future grant applications such as FDEP Clean Water State Revolving Fund (CWSRF). The following key elements typically associated with gr ant and loan funding addressed in this plan include the following: • Review investigative studies and field work completed to date to determine project improvements that will improve system performance and address public health risk • components. • Establish design parameters for the facilities improvements. • Identify and evaluate alternatives to satisfy the needs of the project. • Provide a recommendation to address the facilities improv ements based on a cost effective • and environmentally sound approach. • Describe the recommended improvements and their estimated cost. • Present a schedule of implementation of the recommended facilities. • Identify any adverse environmental impacts and propose mitigating measures if needed. • Identify a source of financing. As the Village moves forward, the following programs are potential funding sources to assist with project implementation. State Revolving Fund The Clean Water State Revolving Fund (CWSRF) program provides low-interest loans for planning, designing and constructing water pollution control facilities under Chapter 62-503, F.A.C. FDEP receives requests for funding throughout the year for wastewater, stormwater, and certain energy and other types of projects. The information gathered in the request is used to establish project priorities for listing projects Miami Shores Village Shores Estate Septic to Sewer Planning Study 5 May 2020 in order of priority for funding at the beginning of each fiscal year and each quarter, thereafter, as funds are available. Funds are made available for Planning Loans, Design Loans, and Construction Loans. Small, disadvantaged communities may also be eligible for grants, which, once qualified, can significantly reduce the amount owed on a CWSRF loan. The loan terms include a 20-year amortization and low-interest rates. Financing rates vary based on the median household income, the poverty index, and the une mployment index, but average less than 50 percent of the market rate. The Clean Water Program Manual provides all of the application forms needed for the CWSRF Loan and the Small Community Wastewater Facilities Grants program. It also includes example documents, guidance, other forms, checklists and standard loan agreements. The Small Community Wastewater Construction Grants (SCWCG) program assists small communities and wastewater authorities in planning, designing, and constructing wastewater management facilities under Chapter 62-505, F.A.C. An eligible small community must be a municipality, county or authority with a total population of 10,000 or less and have a per capita income (PCI) less than the state of Florida average PCI. Projects shall compete separately for planning, design, and construction grants. The highest priority is given to projects that address a public health risk and projects that are included in a Basin Management Action Plan. The grant percentage is determined by the sponsor’s affordability index and is 70, 80 or 90 percent of the loan amount up to 25 percent o f the funds available during the fiscal year. All projects must receive a Clean Water State Revolving Fund loan to receive th ese grant funds. On June 10, 2014, the Water Resources Reform and Development Act of 2014 (WRRDA) was signed into law. Among its provisions are amendments to Titles I, II, V and VI of the Federal Water Pollution Control Act (FWPCA). These amendments require FDEP to include Davis-Bacon wage rates and American Iron and Steel provision in all loan agreements. To offset the additional costs that result from these new requirements, the base financing rate will be reduced by 1.0 percent in all construction agreements. Additionally, these amendments will require the development and implementation of a fiscal sustainability plan for all construction loans. This plan must be accepted and implemented prior to the final construction loan disbursement. As of 2017, the CWSRF Program has awarded approximately $1.1 billion in funding for over 120 wastewater and stormwater improvement projects during the past five years, and a total of $4 billion in loan funds since its inception in 1989. The program is funded by federal grants, state matching funds, loan repayments and interest earnings. Nonpoint Source Management Program – 319 Grants Funding for control of water pollution from nonpoint sources is managed by the Nonpoint Source Management Program. The program administers both the Federal Clean Water Act Section 319(h) Grants (also known as "319 Grants") and the State Water-quality Assistance Grants (also known as "SWAG"). The goal of these grants is to reduce nonpoint source pollution from land use activities. Total funding amounts available each year in these two grant programs depends on Federal and State appropriations but is usually around $8 - $9 million. The Nonpoint Source Management Program administers federal and state grant funding for projects that reduce pollution from nonpoint sources, particularly to address impaired waterbodies and meet restoration goals related to Total Maximum Day Loading (TMDL’s) and restoration plans. There are no set maximum or minimum funding request caps per project. • State funding - approximately $5 million is appropriated annually to FDEP through the Florida legislature for the State Water-quality Assistance Grant (SWAG). This funding is intended for “shovel ready” capital improvement construction projects treating waters not attaining standards. • Federal funding - approximately $6 million is awarded annually to FDEP by the Environmental Protection Agency (EPA) through section 319(h) of the Clean Water Act. The grant stipulates that a Miami Shores Village Shores Estate Septic to Sewer Planning Study 6 May 2020 minimum of 50% of the state’s grant funds must go towards projects that implement adopted EPA Approved nine element Watershed Based Plans (WBPs), e.g., Basin Management Action Plans (BMAPs) or Reasonable Assurance Plans (RA Plans). The remaining 50% or less of the funding is not limited to projects that implement the BMAPs but are mostly used by the State administratively to run the grant program, therefore these funds are more limited for project use. Examples of fundable projects or programs include, but are not limited to: • Demonstration and evaluation of Best Management Practices (BMPs); • Nonpoint source pollution reduction in priority watersheds (i.e., areas with Water Quality Restoration Plan(s), treatment of impaired waters, etc.); • Ground water protection from nonpoint sources; • Public education programs on nonpoint source management (“319 Grant” only); and • Septic to sewer projects, including (“319 Grant” only): o Laying the lateral from the residence/business to the sewer main; o Connection to the sewer line; o Installing a grinder pump station [if on the resident’s property]; and o Abandonment of the septic if the remaining septic tank is a continued source of pollution . The availability of funding depends on whether the project receives state funding through the State Water Quality Assistance Grant or federal funding through EPA's Section 319(h) Grant. State-funded Projects: • State funding is available after July 1, which is the start of the state's fiscal year (FY) after legislative appropriation. The duration that these funds are available is about three years, commonly referred to as the "grant period." However, with good reason, this money can be "certified forward" (i.e., extended) by FDEP at the end of each fiscal year after the original grant period has passed. Federal-funded Projects: • Because the state must apply for the federal grant for the following federal fiscal year, there is a longer lead time before federal funding is available for projects. It generally takes about 1½ years from the time a project proposal is submitted to FDEP before the money is available. Proposals are usually submitted in spring, selected by FDEP by the end of summer, submitted to EPA in the fall, and awarded to FDEP the following summer/fall. • State fiscal year and federal fiscal year are different. "Federal FY2019" refers to the federal fiscal year starting October 1, 2019 and ending September 30, 2020. Grant and match-funded work must be completed by the end of a 3-year grant period that ends on the last day of that federal fiscal year after three years. Individual citizens that are having issues with their septic systems are not eligible for nonpoint source grant funding. The federal Section 319(h) Grant can help fund abandonment of septic tanks and connections to sewer, but a local government or Water Management District (WMD) would have to apply for the grant. Homeowners would then get reimbursed through that local government or WMD. This is typically accomplished on a street or neighborhood scale rather than one homeowner at a time. Economic Development Administration (EDA) The Economic Development Administration (EDA) has published the FY 2020 Public Works and Economic Adjustment Assistance Programs Notice of Funding Opportunity. EDA’s Public Works and Economic Adjustment Assistance (EAA) programs provide economically distressed communities and regions with comprehensive and flexible resources to address a wide variety of economic needs. Projects funded by these programs will support work in “Opportunity Zones” and will support the mission of FDEP by, among other things, leading to the creation and retention of jobs and increased pr ivate investment, advancing Miami Shores Village Shores Estate Septic to Sewer Planning Study 7 May 2020 innovation, enhancing the manufacturing capacities of regions, providing workforce development opportunities, and growing ecosystems that attract foreign direct investment. Through the PWEAA NOFO, EDA solicits applications from applicants in order to provide investments that support construction, non-construction, planning, technical assistance, and revolving loan fund projects under EDA’s Public Works program and EAA programs. Grants and cooperative agreements made under these programs are designed to leverage existing regional assets and support the implementation of economic development strategies that advance new ideas and creative approaches to advance economic prosperity in distressed communities. There are no submission deadlines under this opportunity. Applications will be accepted on an ongoing basis until a new PWEAA NOFO is published, the PWEAA NOFO is cancelled, or all funds have been expended. The National Environmental Policy Act (NEPA) requires Federal agencies to assess the potential environmental impacts associated with proposed federal actions, including financial assis tance. Areas of consideration for projects eligibility include: Water Resources - Describe surface and underground water resources at or near the project site(s) and any impacts of the project to these. Explain if there will be discharges to surface water and if the receiving surface water body is listed on the U.S. Environmental Protection Agency’s (EPA) Section 303(d) list of impaired waters. Indicate if the proposed project is located within an area mapped by the EPA as sole source aquifer recharge area. Water Supply and Distribution System - Indicate the source, quality, and supply capacity of local domestic and industrial/commercial water resources, and the amount of water the specific project facilities and primary beneficiaries are expected to utilize. Note whether the water that is being supplied is in compliance with the Safe Drinking Water Act, and if not, what steps are being taken to ensure compliance. Wastewater Collection and Treatment Facilities - Describe the wastewater treatment facilities available for processing the additional effluent including usage by the beneficiary(s). Indicate design capacities and current loading, and adequacy in terms of degree and type of treatment required. Describe all domestic class or process wastewater or other discharges associated with the project facilities and its primary beneficiaries, and the expected composition and quantities to be disch arged either to a municipal system or to the local environment. Indicate all discharges that will require on-site pre-treatment. If local treatment and sewer systems are or will be inadequate or overloaded, describe the steps being taken for necessary improvements and their completion dates. Mitigation - Describe methods to be employed to reduce impacts to any a nd all adverse impacts. List all mitigation measures that would be implemented to minimize impacts to environmental resources from project implementation. Miami Shores Village Shores Estate Septic to Sewer Planning Study 8 May 2020 2. REGULATIONS AND LEGISLATIVE REQUIREMENTS There are approximately 105,000 parcels served by septic tanks in Miami-Dade County, and approximately 100,000 of which are within the Urban Development Boundary (UDB). As per the Miami Shores Village, Florida – Code of Ordinances, Appendix A – Zoning, Article V – Supplementary Regulations, Division 11 – Septic Tanks, “Any development requiring a new septic tank or other on-site sewage disposal facility shall not receive a building permit until the soil suitability for the proposed system has been approved by Miami-Dade County.” As per the City of North Miami, Florida – Code of Ordinances, Chapter 19 Utilities, Article V – Sewage Treatment Plants and Septic Tanks, Sec. 19-215 – Septic Tanks, “When a public sanitary sewage system becomes available to service any property using a septic tank as provided herein, the p roperty owner shall have ninety (90) days from receipt of written notice of such availability in which to connect to the public sewage system and in which to deactivate such septic tank in accordance with the requirements of the South Florida Building Code.” As per the Miami-Dade County Septic Study, the Comprehensive Development Master Plan (CDMP) outlines a number of policies that are relevant to prioritizing the extension of sewer services. These policies are included in their entirety in Appendix C, but the most relevant policies are summarized here: 1. WS-3A. Public facility improvements will be evaluated for funding in accordance with the following general criteria: ▪ Improvements necessary to protect the health, safety, and environmental integrity of the community, consistent with the policies of this Plan and applicable federal, state, and County regulatory requirements. ▪ Improvements necessary to meet any deficiencies that may exist in capacity or in performance. These include the retrofit of deteriorating facilities which fail or threaten to fail to meet health, safety, or environmental standards. ▪ Improvements extending service to previously unserved developed areas within the Urban Development Boundary. ▪ In providing for improvements to the sanitary sewer collection system, the following additional criteria shall also be considered: o Location within a public water supply wellfield protection zone. o Potential for the disposal of waste other than domestic waste. o Designation on the Land Use Plan map for a use more intense than estate density residential. o Location within areas of low land elevation in conjunction with high water table. o Locations with poor soil conditions. o Proximity to existing sewer mains 2. WS-4D. Anywhere that the use of existing private wells, int erim wastewater treatment plants, or septic tanks pose a threat to the public health or the environmental integrity of Miami- Dade County, the County shall assert its authority to create a Special Taxing District to finance connections to the public water supply or to the public sewer system. 3. WS-4G. It is the policy of the County to mandate the connection of existing developments to the regional wastewater system upon extension of the wastewater collection system proximate to said developments. However, the County shall not require connections to be made in areas with gravity systems that are surcharged at any time of the day, for more than 30 days per year. Miami Shores Village Shores Estate Septic to Sewer Planning Study 9 May 2020 Connections will not be required if the system is subject to overflows, discharge or exfiltration of sewage at any time during the year under any storm event of five years or less. 4. WS-4H. Miami-Dade County shall coordinate with municipalities and the State of Florida to monitor existing septic tanks that are currently at risk of malfunctioning due to high groundwater levels or flooding and shall develop and implement programs to abandon these systems and/or connect users to the public sewer system. The County shall also coordinate to identify which systems will be adversely impacted by projected sea level rise and additional storm surge associated with climate change and shall plan to target those systems to protect public health, natural resources, and the region's tourism industry. Section 381.00655 of Florida Statutes requires that property owners with septic tanks, even if they are functioning properly, hook up to nearby available sewer lines within a year of being notified by the utility. As a result of this Shores Estate Septic to Sewer Planning Study, the Village’s Comprehensive Plan will include several amendments to guide future efforts in resolving failing septic system problems in the identified areas subject to flooding, including Capital Improvements Elements and Infrastructure Elements. The additional flow from the residents within the Subdivision is anticipated to be 37,543 GPD. The City has stated that the force main has the capacity to accept the flow from t he Shores Estates Subdivision. Additionally, MDWASD has indicated that the receiving PS 347 and wastewater treatment plant both have the capacity to receive the anticipated flows. In coordination with MDWASD, a formal Intermediate Downstream Collection and Transmission System (IDC&TS) Certification of Adequate Reserve Capacity (Utility Form) will need to be submitted for approval/signature at the time of design/permitting and prior to construction. In coordination with the City, the City has indicated that the proposed sewer system would need to be installed to meet the City’s design standards or MDWASD’s design standards for any items that are not covered under the City’s design standards. Additionally, the City requires the proposed system be designed to account for resiliency (i.e. electrical equipment to be installed at FEMA flood elevation plus two feet, sewer manholes have stormwater inserts installed, wet well access port(s) be installed above the FEMA flood elevation or have water-tight cover, etc.). Once the system has been constructed, the utilities will need to be donated to the City. The City does not have a standard donation form and recommended the Village utilize the MDWASD donation form to prepare a legal donation document. In coordination with Miami-Dade Division of Environmental Resources Management (DERM) Water & Wastewater Division, the proposed gravity sewer system, lift station, and force main within the public right- of-way will require a sewer extension permit through DERM Water & Wastewa ter Division. In order to decommission/remove the existing septic tanks on each resident’s private property, the homeowners will need to coordinate with FDOH. To ultimately address the vulnerability of compromised or failed septic systems, it is necessary to extend sanitary sewer service to certain areas in order to protect public and environmental health. Miami Shores Village Shores Estate Septic to Sewer Planning Study 10 May 2020 3. PROJECT DESCRIPTION AND EXISTING CONDITIONS The Shores Estate Subdivision includes 100 parcels, and therefore an estimated 100 residential septic tanks, within 26 acres bound by NE 107th Street to the north, Biscayne Canal C-8 to the south, US 1 to the east, and Miami Shores Golf Club to the west. Appendix B provides an outline of the Subdivision as well as the proposed tie-in location to the existing wastewater force main for the expansion recommended in Section 5. As shown in Appendix B, NE 10th Place is the only ingress/egress point for the neighborhood and is a priority road for the Village. The known land use acreage and the associated number of septic tanks per land use are provided in Table 3. The soil within this area consists of Urban Land (0-2% slopes). The Shores Estate Subdivision includes approximately 0.5 mile of 10 foot-wide, paved alley ways and 1.0 mile of 20 foot-wide, two-lane, paved residential roadway with swales and driveway connections. Table 3: Shores Estate Subdivision Land Use Type Acres No. of Septic Tanks Residential 25 98 Vacant 1 2 4. ENVIRONMENTAL REVIEW AND PROJECT JUSTIFICATION Environmental Effects Since 1994, sea levels have rose four inches and are expected to increase an additional two to six inches by 2030. As per the Miami Shores Village Environmental Study, Miami Shores Village is susceptible to coastal flooding due to extreme high tides, storm surge, rising groundwater table elevations, and heavy rainfall. Tidal flooding is the temporary inundation of low -lying areas by seawater during high tide eve nts. The southern neighborhood of Shores Estates Subdivision is highly exposed to tidal flooding. Storm surge refers to the increased water levels generated by a tropical cyclone due to the strong winds and lower atmospheric pressure. According to the US National Hurricane Center, the odds of a hurricane coming within 50 nautical miles of the Shores Estates Subdivision is 12.4% for any given year. As sea level rises, the depth of storm surge will also increase. Rainfall flooding can occur when precipitation infiltrates into the ground and causes the water table to rise above normal levels. As sea level rises, heavy rainfall flooding will become more frequent as the average water table height rises in the limestone bedrock underneath. Models indicate that the most vulnerable area of Miami Shores is the neighborhood of Shores Estates. NE 10th Place, the only ingress/egress point for the neighborhood, currently experiences tidal flooding on the southern end and tidal flooding will start to become more prevalent as sea levels rise. Models from the Miami Shores Environmental Study indicate that approximately 30% of the neighborhood streets currently experience flooding due to high tides. By 2033, the tidally induced flooding will be present on 50% of the roadways and adjacent private properties. A typical septic system consists of a septic tank and a drain field, or soil absorption field. The septic tank digest organic matter and separates floatable matter (e.g., oils and grease) and solids from the wastewater. Soil-based systems discharge the liquid (known as effluent) from the septic tank into a series of perforated pipes buried in a leach field, chambers, or other special units designed to slowly release the effluent into the soil. Low-lying areas and a high-water table present difficult conditions for efficient on-site wastewater treatment. As the ground water table rises, the effectiveness of the drain fields will decrease and eventually fail. Failure symptoms include foul odors around the septic tank and drain field, wastewater backing up into household drains, bright green, spongy grass on the drain field, and/ or pooling water or muddy soil around the septic system. Older septic tanks may collapse or move upward, if emptied while under floodwater. Leaking wastewater may contain disease causin g bacteria, viruses, and parasites. Once the wastewater discharge contaminates flood waters and/or surface water, it is difficult for residents to avoid contact with contaminated water. To minimize health risks, private septic systems should be replaced with a centralized sewer collection system. Miami Shores Village Shores Estate Septic to Sewer Planning Study 11 May 2020 As per the Miami Shores Village Environmental Study, soils in this area have high to moderate percolation rates and provide nominal biological treatment to the septic tank effluent. The Florida Aquifer Vulnerability Assessment (FAVA) program shows the Village falls within an area of moderate vulnerability to aquifer contamination from land-based contamination. Additionally, many of the septic systems in the area were installed in the 1950’s and are likely past their life span. Additionally, the septic to sewer conversion will provide a significant environmental benefit to the Village’s local waterways, most notably Biscayne Bay by reducing total nitrogen in the C-8 Biscayne Canal adjacent to the southern border of the Subdivision. Failing septic tanks are a large contributor to surface water nutrient loading/contamination. Septic tank systems can be a major, and potentially underestimated, source of water pollution. Non-functional septic systems have a high potential for environmental contamination and, ultimately, a health risk to the public. To quantify and further support the benefit of removing septic systems, nutrient load reductions associated with septic tank removal were calculated as recommended by FDEP Springs Funding Guidance Document (Appendix D). This methodology was used to estimate nitrogen reductions associated with the removal of septic tanks and subsequent replacement with the recommended sewer collection system. The proposed sewer collection system will now convey the nutrients associated with the removed septic tanks to the NDWWTP for wastewater treatment and disposal by a permitted and regulated facility. Septic Tank Nutrient Load to Groundwater According to FDEP methodology “a nutrient load to groundwater includes the nitrogen input to the land surface, an attenuation factor that accounts for removal that occurs in the soil, and a recharge factor that takes into account the annual rate of recharge to the aquifer.” Inputs of nitrogen are specific to the pollution sources being addressed. For the scope of this study, the pollution source is limited to septic tanks. Additionally, attenuation factors vary based on the nitrogen source. The recharge factors are based on available GIS coverages for the project area. The recharge factor is applied to the attenuated input. Assumed input parameters used to calculate the TN load to groundwater from the septic tanks within the Shores Estates neighborhood include: 1. Septic system attenuation (drainfield + soil) leaching 50%. Multiplier = 0.5 2. Recharge factor equal to 0.9 3. Typical septic system TN input to the environment = 23.7 lbs/yr. This is based on 2.63 persons per household and 9.012 lbs / year per capita input of TN The septic system nutrient load to groundwater is determined by multiplying the number of septic systems, the per-system input, the attenuation factor, and the recharge factor together. This resolves to the equation below. 𝑅𝑎𝑙𝑟𝑖𝑎 𝑅𝑦𝑟𝑟𝑎𝑙 𝑅𝐿 𝐿𝑙𝑎𝑎 (𝑙𝑎𝑟 𝑦𝑟)=100 𝐿𝑅𝑅𝐶𝑅 𝑊 23.7 𝑙𝑎𝑟 𝑦𝑟𝑊 0.50 𝑊 0.9 Based on these assumptions and the methodology outlined above, it is estimated that 1,067 lb/yr of TN is contributed to the groundwater. Appendix E provides complete calculations of the nitrogen loading associated with the Shores Estate Subdivision. Miami Shores Village Shores Estate Septic to Sewer Planning Study 12 May 2020 Environmental Assessment A list of species potentially occurring within the project vicinity has been compiled using Florida Natural Areas Inventory (FNAI), Florida Fish and Wildlife Conservation Commission (FWC), and US Fish and Wildlife Service (USFWS) databases. Based on the findings, a listing of the state and federally listed species potentially occurring within the immediate vicinity of the project s ite has been compiled. There are no bald eagle nests or wading bird rookeries within two miles of the project site. However, Florida Bonneted Bat and West Indian Manatee communities are known to occur in the vicinity of the project area. Nonetheless, it is not anticipated that any endangered species will be impacted by this project. Additionally, the project site has the potential for having Florida Burrowing Owls, Rim Rock Crowned Snakes, American Crocodiles, Gopher Tortoises, Hawksbill Sea Turtles, Giant Orchids, Florida Pinewood Privets, and Mangrove Gambusia. For a complete list of potentially occurring species, refer to Appendix F-1. Additional data was reviewed through the National Wetland Inventory (NWI), the Miami-Dade County Environmental Considerations GIS (ECG), and the Natural Resources Conservation Service (NRCS) for potential on-site wetlands, hydrologic conditions, and hydric soil. Most of the soils within the project boundary are considered urban land, 0 to 2 percent slopes. Based on the NWI, there are no wetlands within the Shores Estate Subdivision or within the vicinity of the project boundary (Appendix F-2). The proposed Shores Estates wastewater collection system will be located in previously disturbed and developed areas such as the Village’s public rights-of way or existing utility easements. Based on the locations of the proposed project improvements, impacts to environmentally sensitive areas are not anticipated to occur. In addition, Biscayne Bay and surrounding canals supports extensive seagrass beds and diverse fisheries resources and provides habitat for a variety of endangered or threatened species. However, all work associated with this proposed wastewater collection system is located within urban disturbed uplands and active roadways and no natural vegetative habitat areas or archeological and/or historical sites will be disturbed. Miami Shores Village Shores Estate Septic to Sewer Planning Study 13 May 2020 5. ALTERNATIVE ANALYSIS Alternatives Considered – Background When determining the feasibility of transferring wastewater flows from on-site septic and disposal systems to NDWWTP, conventional gravity sewer and vacuum sewer were considered as alternatives for wastewater conveyance. Both alternatives rely on the downstream treatment facility for treatment of all wastewater collected (i.e. no treatment takes place on site). Gravity Sewer Conventional gravity sewer has often been the standard for wastewater collection systems due to their low operation and maintenance cost and proven reliability. These systems require no moving parts to collect and convey wastewater from residential and commercial properties. Gravity sewer systems are governed by a series of design standards, listed below, that determine pipe size, slope, depth of bury, number of manholes, and service lateral connections. For gravity sewer to function properly, the collection system must be designed to maintain minimum slopes to ensure that minimum flow velocities are achieved when flowing full or partially full. This requirement, paired with the topography of the land surface governs the feasibility of gravity sewer. Minimum pipe slope and cover limit the horizontal distance that g ravity sewer can be installed as construction no longer becomes safe or cost-effective as certain depths are required. Gravity sewer systems can routinely require in stallation depths from 6 feet to 15 feet. Additionally, gravity sewer requires the installation of manholes at regular specified intervals, changes in grade, and pipe intersections. This allows for sufficient access for maintenance and prevents clogging du ring use but adds considerable cost to the project. Gravity sewers are typically located within the middle of the roadway or as close to the middle as the design parameters allow. Lift Stations are required at low points in the design when minimum slopes can no longer be maintained, depth of bury is not feasible, or where existing infrastructure must be avoided. When lift stations are required, subsequent force mains will also be needed to convey the collected wastewater to the point of connection to the existing system or to the NDWWTP. Vacuum Sewer In a vacuum sewer system, the wastewater from each residential or commercial property flows into a sump and valve pit. When the liquid level in the sump reaches a specific level, a vacuum valve in the pit automatically opens, allowing the discharge of a predefined volume of both wastewater and air i nto the mainline. The mainline in a vacuum sewer is laid in a saw tooth pattern which is designed to maintain a downward slope toward the vacuum station. Essentially vacuum systems are vacuum assisted gravity systems. The sawtooth profile ensures that an open passage of air between the vacuum station and the interface valves is maintained throughout the piping network. This provides the maximum differential pressure at the interface valves to ensure self-cleansing of the valves as well as maximum energy input to the vacuum mains. The vacuum sewer mainline terminates at a central vacuum lift station, which maintains the vacuum in the system. The wastewater enters the pu mp station and is collected in a holding tank until it is transferred by a pump through a force main to the NDWWTP. Table 4 provides an overview comparison of the proposed wastewater conveyance alternatives. Table 4: Alternative Comparisons Gravity Sewer Vacuum Sewer Power Requirements Power is required only at the Pump Station. Power is required only at the Pump Station, but vacuum and discharge pumps are both required. Pump run times can be less on average for vacuum systems. Miami Shores Village Shores Estate Septic to Sewer Planning Study 14 May 2020 Connections No restrictions on connections. Gravity sewer piping, manholes, and lateral connections are upstream of the pump station. System relies on gravity flows resulting in deeper pipe installations. Usually 2-4 homes are connected to a single collection valve pit requiring multiple valve pits and collection piping throughout the area. The vacuum system allows shallower collection pipe installation. Leak Detection / Exfiltration A broken pipe can go unnoticed and the depth of the gravity lines are more susceptible to groundwater influence. Since vacuum is maintained within the mains at all times sewage exfiltration does not occur. Infiltration Broken pipes allow infiltration of stormwater increasing treatment costs and power use, but trenchless repair options are available. Any leak in a vacuum main or valve pit will result in a vacuum drop which will be registered at the station immediately and impact system performance. Infiltration will occur until the leak is located and repaired. Maintenance and Serviceability Pump station requires below ground wetwell and valve vault. Gravity sewer may require occasional jetting and manhole maintenance. Mechanical and electrical operation and maintenance required for submersible pumps and control panel. Vacuum system requires an above ground building and operating components throughout the collection system. Building, mechanical and electrical operation and maintenance required for vacuum valves, vacuum pumps, discharge pumps, and control system. High scouring velocities in the system reduce risk of blockage. Most of the maintenance occurs at the vacuum station. Design Criteria Gravity Sewer Gravity sewer systems are designed and administrated utilizing FDEP guidelines and permit application requirements for constructing a domestic wastewater collection / transmission System. These administration and design guidelines are found in chapter 62-400.400 of the Florida Administrative Code and are further detailed in form 62-604.300 (8)(a). Additionally, MDWASD has additional guidelines found in the Design and Construction Standard Specifications and Details. The basic design process involves the following steps. Miami Shores Village Shores Estate Septic to Sewer Planning Study 15 May 2020 1. Collect and compile existing data within the project area. This includes as-built information of existing utilities within the ROW, GIS data, topographic data, soils data, location of dwellings, water use (if available), and septic tank data. 2. Determine the permitting requirements and design regulations (see below). 3. Begin coordination with other existing utilities within the ROW. 4. Conduct field survey for supplemental topography, soft digs of existing utilities (if needed), existing dwelling finish floors, septic tank locations, and sewer cleanout locations . 5. Prepare a preliminary layout of the gravity sewer system including minimum slopes and depths of cover, controlling pipe runs, and manhole locations. 6. Prepare a preliminary layout of the lift station and force main layout including lift station location and force main route to connect to existing wastewater system. 7. Import preliminary sewer layout into a modeling software capable of gravity and pressure flow simulations. Model the project area at full buildout and size gravity mains, force mains, and lift stations accordingly. Comply with local regulations for system function. 8. Prepare final design plans based on the modeled results and engineering evaluations. 9. Submit for permits. Typical design guidelines for gravity sewer layout include the following: 1. All new gravity sewer mains to be installed within the public right of way shall be 8-inch in diameter, minimum (Miami-Dade County Code of Ordinances Sec. 24-43.4. B). 2. Minimum flow velocity of 2 feet per second (fps) when flowing full (MDWASD UC-250). 3. Minimum slope to maintain minimum flow velocity for 8-inch gravity equal to 0.40 feet per 100 feet (MDWASD UC-250). 4. Minimum cover over gravity sewers shall be no less than 48 inches calculated from the finished grade without written approval by MDWASD (MDWASD Standard Specification 15060). 5. Manholes shall be installed as follows (MDWASD UC-250): a. the end of each gravity sewer, b. all changes in grade, size or alignment, c. all sewer intersections, d. at distances not greater than 400 feet (350 feet used as typical minimum design), e. minimum diameter of 4 feet. Typical design guidelines for force main and lift station layout include the following: Lift station guidelines 1. Design capacities are based on peak hourly flow 2. Pumps maintain a minimum velocity of 2 fps in the force mains 3. Wet well volume is based on design average flows and a filling time not to exc eed 30 minutes 4. Wet well floors have a minimum slope of 1 to 1 to the hopper bottom 5. Adequate ventilation and odor control is provided 6. Designed with a fenced enclosure around the pump station Miami Shores Village Shores Estate Septic to Sewer Planning Study 16 May 2020 7. Pumps alternate lead and lag rolls on cycling 8. Designed with high water alarms allowing for sufficient response time of maintenance personnel to reach the station before a spill Force main guidelines 1. Designed to maintain, at design pumping rates, a cleansing velocity of at least 2 fps 2. Isolation valves every 750 to 1000 linear feet and where needed to appropriately isolate the branches and system 3. Air relief valves placed at all high points and at the ends of all directional drills 4. A C-value that does not exceed 120 Vacuum Sewer Vacuum sewer systems are designed and administered in accordance with the 10 State Standards. FDEP has adopted a design check list for vacuum sewer design which is found in the Appendix I. Vacuum sewers are mechanized systems for wastewater transport that utilize differential air pressure and gravity to move sewage. The basic design processes discussed above for the gravity sewer system such as site due diligence, survey, preliminary layout, modeling, and permit research are similar for this approach. Vacuum sewer mains are designed to maintain a generally downward slope toward the vacuum station and are vacuum-assisted gravity pipe networks. The major vacuum system components are sized according to peak flow. To facilitate this process, a catalog of land uses and resultant sewage flows should be compiled. The following are typical design criteria necessary for vacuum sewers: 1. Vacuum sewer systems are sized based on the number of connections and the type of connections (residential, commercial, etc.). 2. Vacuum pumps are ideally positioned above the vacuum tank to prevent the introduction of any fluid to the vacuum pumps. 3. The vacuum tank is for full buildout plus any perceived development. 4. The force main pumps are sized to meet traditional flow and total dynamic head characteristics and to meet the net positive suction head requirements to pull wastewater out of the vacuum tank. 5. Vacuum mains are first sized for adequate sewage flow and then sized to maintain proper vacuum levels throughout the system. 6. Vacuum mains are laid out in runs; no looping of runs is permitted. 7. Each vacuum main run is hydraulically analyzed to ensure proper flow in the pipe. 8. Minimum vacuum main slope is 0.20%. 9. The minimum slope must be held entering and exiting each lift. 10. Lifts are placed as needed to maintain minimum pipe depth and to facilitate proper function of the vacuum hydraulics. 11. Flows on a natural downhill grade do not require lifts on slopes less than 2000 linear feet. 12. Hydraulic evaluations consider the diameter of pipe, length of pipe run, number of lifts, number of valve pit connections, and elevation differences. 13. Valve pits are sized to allow for the service lateral to tie in as needed. Miami Shores Village Shores Estate Septic to Sewer Planning Study 17 May 2020 Net Present Worth Analysis Section 602(b)(13) of the Federal Water Pollution Control Act was amended by the Water Resources Reform and Development Act in 2014 to require the study and evaluation of the cost and effectiveness of the process, materials, techniques, and technologies for carrying out the proposed project to be funded with Clean Water SRF (CWSRF) assistance. The result of this analysis is used to determine the cost effectiveness of a project during SRF funding review. To support this requirement, the net present worth (NPW) of each technically feasible alternative has been calculated. The NPW is the sum of the capital costs plus the uniform series present worth factor (USPWF) multiplied by the annual operation and maintenance (O&M) costs minus the single payment present worth factor (SPPWF) multiplied by the salvage value. As this planning document considers a project planning peri od longer than 20 years, it is also necessary to incorporate replacement costs (R) into the NP W calculation as follows: 𝐿𝐿𝑊=𝐶𝑎𝑙𝑟𝑖𝑎𝑙 𝐶𝑙𝑟𝑟+(𝑅𝑅𝐿𝑊𝐹× 𝐴𝑙𝑙𝑟𝑎𝑙 𝐿&𝐿)+(𝑅𝐿𝐿𝑊𝐹× 𝑅)−(𝑅𝐿𝐿𝑊𝐹× 𝑅𝑎𝑙𝑟𝑎𝑔𝑎) The annual O&M costs were determined using comparable budgets and costs incurred by local utilities. These were further supported by vendor literature. The USPWF, used to covert annual O&M costs to present day dollars is a function of the discount rate and number of years in the planning period, is calculated as provided below. This master planning document will consider a planning period (n) of 30 years. The discount rate (i) used for this analysis is 0.7%, the “real” discount rate taken from the 2018 Appendix C of the OMB circular A-94. This Appendix is updated annually by the federal government. 𝑅𝑅𝐿𝑊𝐹=(1 +𝑖)𝑛−1 𝑖× (1 +𝑖)𝑛 The salvage value of the constructed project is estimated using the anticipated life expectancy of the constructed items using straight line depreciation calculated at the end of the planning period and converted to present day dollars using the SPPWF. The SPPWF is a function of the discount rate (i), described above, and the year (n) at the end of which salvage value is estimated or a replacement cost is incurred. 𝑅𝐿𝐿𝑊𝐹=(1 +𝑖)−𝑛 The life expectancy, or useful life, of each constructed component is provided in 62-503.200(36), F.A.C. as follows: • Land = 100 years • Conveyance pipes = 50 years • Structures (buildings and tankage) = 30 to 50 years • Process equipment = 15 to 20 years • Auxiliary equipment such as generators and controls = 10 to 15 years A cost effectiveness table will be provided for each alternative in Section 6 of this report, summarizing the capital costs, annual O&M cost, salvage value, present worth of each of these values, and the NP W. Miami Shores Village Shores Estate Septic to Sewer Planning Study 18 May 2020 6. ALTERNATIVE DESCRIPTION Gravity Sewer System Installing conventional gravity sewer to replace the use of septic tanks in the Shores Estate Subdivision will require 4,545 linear feet of 8-inch gravity sewer and 14 manholes. These collected flows would be routed to a single proposed lift station. The lift station would then pump the Subdivision’s flows through 328 linear feet of 8-inch force main (estimated size) to the City of North Miami’s existing 12-inch force main on Biscayne Boulevard. Valves would be installed along the force main at 750-foot intervals, requiring a total of 1 valve. Land acquisition is not required for the single lift station, as the proposed location is within public right-of-way. The construction of the gravity sewer system will require the re pair of approximately 0.95 miles of paved road. A summary of the proposed gravity sewer inventory in provided in Table 5. A recommended schematic of the approximate horizontal locations of the gravity sewer, manholes, lift stations and force main is provided as Figure 1. Table 5: Gravity Sewer Inventory DESCRIPTION QTY UNIT 8" Gravity 4,545 LF Manhole 14 Each Lift Station 1 Each 8” Force Main 328 LF Valve (FM) 1 Each Road Repair 0.95 Mile Miami Shores Village Shores Estate Septic to Sewer Planning Study 19 May 2020 Figure 1: Shores Estate Subdivision Conventional Gravity Sewer Alternative Miami Shores Village Shores Estate Septic to Sewer Planning Study 20 May 2020 Vacuum Sewer System The installation of vacuum sewer in the Shores Estate Subdivision will require 38 valve pits throughout the Subdivision. These pits will be placed along vacuum mains of various diameter to provide maximum differential pressure within the network. The required length of vacuum main for Shores Estate Subdivision is summarized in Table 6, with a complete inventory of all infrastructure required for this alternative. The vacuum mains will flow to a single vacuum station. Wastewater from the vacuum station will then be pumped through 328 linear feet of 8-inch force main (estimated size) to the City of North Miami’s existing 12-inch force main on Biscayne Boulevard. Valves would be installed along the force main at 750-foot intervals, resulting in a total of 1 valve. Land acquisition is not required for the single vacuum station, as the proposed location is within public right-of-way. The construction of the vacuum sewer system will require the repair and/or addition of approximately 0.95 miles of paved road. A recommended schematic of the approximate horizontal locations of the gravity sewer, manholes, lift stations and force main is provided as Figure 2. Table 6: Vacuum Sewer Inventory DESCRIPTION QTY UNIT 4" Vacuum Main 8,976 LF 6" Vacuum Main 3,958 LF Vacuum Station 1 Each Valve Pit 38 Each 8" Force Main 328 LF Valve (FM) 1 Each Road Repair 0.95 Mile Miami Shores Village Shores Estate Septic to Sewer Planning Study 21 May 2020 Figure 2: Shores Estate Subdivision Vacuum Sewer Alternative Miami Shores Village Shores Estate Septic to Sewer Planning Study 22 May 2020 Septic Tank Removal If the Shores Estate Subdivision decided not to extend sewer service to this subdivision, the residents would continue to experience more frequent septic system failures. With the continual rise in sea level and water table elevation, the volume of unsaturated soil available to treat and dispose the wastewater will steadily decrease. Because much of the treatment of wastewater relies upon the unsaturated soil below the drain field, treatment and disposal are less effective as more of the soil becomes permanently saturated with rising groundwater. Reduced treatment can cause contamination, in the form of disease -causing pathogens, excess nutrients, and chemical contaminants that may pose a potential risk to both human and environmental health. Because most of the septic systems in the Shores Estate Subdivision were installed in the 1950’s, many of the tanks are past their useful life and are likely to fail. Assuming all septic tanks will require replacement in the next 30 years and all vacant parcels of this Subdivision will be developed, the residents will be responsible for funding the installation of 100 septic systems. Typical septic tank installation in Miami-Dade County will cost an average of $5,400 per system, ranging in price from $1,340 to $9,437. Although a “do nothing” alternative is an option, based on the age of the septic tanks in the Subdivision and associated groundwater levels, any septic tank(s) that does fail will pose a significant threat to the public health and safety of the Subdivision residents. In addition, a “do nothing” approach does ultimately require septic system replacement costs. Those costs will be the responsibility of the Shores Estates residents and new septic system installations will be subject to operational review and project permitting. An opinion of probable cost (OPC) for each alternative and subsequent net present worth was calculated. The total capital costs are provided to assist the Village with planning and funding, a detailed OPC can be found in Appendix G. The net present worth is provided as it will be used to compare alternatives during the SRF review process (detailed in Appendix H). Alternative Sewer Analysis As discussed throughout this document, a conventional gravity sewer and vacuum sewer were considered as alternatives for wastewater conveyance when determining the feasibility of transferring wastewater flows from on-site septic and disposal systems to the NDWWTP. Both of these alternatives require collection systems, pump stations, and rely on the downstream treatment faci lity for treatment of all wastewater collected. A “do nothing” alternative is an option but based on the age of the septic tanks in the Subdivision and associated groundwater levels, any septic tank(s) that does fail will pose a significant threat to the public health and safety of the Subdivision residents. As a result, this is not selected as a recommended approach. After evaluation of the existing condition of the Shores Estate neighborhood and reviewing alternative systems based on the residential application, availability of public right-of-way, similar environmental issues for permitting, and similar construction impacts, the criteria for system selection is primarily based on cost, operation and maintenance, and coordination with the City of North M iami as the utility likely to acquire and operate the proposed wastewater system once complete. Conceptual plans were developed as part of this document for a general description of the mechanical and electrical components of each system and operational differences between gravity and vacuum systems were discussed. Preliminary opinions of probable cost were developed for each alternativ e based on the conceptual designs and those estimates include design, permitting, equipment supply, and construction estimates. A summary of the OPC’s is provided on the following page in Table 7. Based on those costs and the simplicity of a gravity sewer system as compared to a vacuum system, the recommended approach is a conventional gravity sewer system. In addition t o cost, the submersible design of a gravity system pump station is recommended as compared to an above ground building typically associated with a vacuum station. Although construction impacts of a gravity sewer system will be greater, there are no appare nt construction constraints and once installed, the conveyance of wastewater based on gravity is recommended as compared to vacuum systems. And finally, the City of North Miami’s wastewater system is comprised of gravity systems with associated submersible pump stations and their Operation and Maintenance personnel are better suited for the proposed conventional gravity sewer system. Miami Shores Village Shores Estate Septic to Sewer Planning Study 23 May 2020 Table 7: Opinion of Probable Cost and Net Present Worth Summary GRAVITY SEWER PROJECT COST VACUUM SEWER PROJECT COST Sewer Capital Cost Subtotal $1,313,940 Sewer Capital Cost Subtotal $1,887,720 30% Contingency $394,182 30% Contingency $566,316 Design, Permitting and Const. Phase $262,788 Design, Permitting and Const. Phase $377,544 SEWER CAPITAL COST TOTAL $1,970,910 SEWER CAPITAL COST TOTAL $2,831,580 NET PRESENT WORTH $1,085,358 NET PRESENT WORTH $1,750,151 The Engineer has no control over the cost of labor, materials, equipment, or over the Contractor's methods of determining prices or over competitive bidding or mark et conditions. Opinions of probable costs provided herein are based on the information known to Engineer at this time and represent only the Engineer's judgment as a design professional familiar with the construction industry. The Engineer cannot and does not guarantee that proposals, bids, or actual construction costs will not vary from its opinions of probable costs. Miami Shores Village Shores Estate Septic to Sewer Planning Study 24 May 2020 7. RECOMMENDED ALTERNATIVE It is recommended that the Shores Estate Subdivision install a conventional gravity sewer system. This alternative is the most cost-effective and feasible as the topography of the region facilitates the use of a single lift station. The total preliminary opinion of probable cost for installing gravity sewer in this Subdivision is approximately $2 million, as provided in Table 8. Table 8: Gravity Sewer Project Cost Sewer Capital Cost Subtotal $1,313,940 30% Contingency $394,182 Design, Permitting and Const. Phase $262,788 SEWER CAPITAL COST TOTAL $1,970,910 NET PRESENT WORTH $1,085,358 A recommended schematic of the approximate horizontal locations of the gravity sewer, manholes, lift stations and force main is provided as Figure 1 above. The proposed initial sizing of this system includes 8-inch gravity sewer, a duplex submersible pump station, an 8-inch force main, and associated roadway and site restoration. Additional design and modeling will be required to accurately size the force main and lift station within the Shores Estate Subdivision. This alternative will require permitting and coordination with FDEP/DERM, FDOT, Miami-Dade County, and Miami Shores Village. The Village will be required to submit a domestic wastewater collection/transmission system through the FDEP/DERM. Specific FDEP requirements, including permitting requirements, for domestic wastewater collection systems and transmission facilities are contained in Chapter 62 -604, Florida Administrative Code (F.A.C.). The Village will also be required to submit a NPDES permit, as required by the Clean Water Act. The permit will contain limits on what the Village can discharge, monitoring and reporting requirements, and other provisions to ensure that the discharge does not impact water quality or people's health. A permit from Miami-Dade County will be required for all installation of sewer mains in Miami-Dade County rights-of-way. A permit from Miami Shores Village will be required for all installation of sewer mains in Village rights-of-way. As will a FDOT permit be required for any activity in State rights-of way (Biscayne Boulevard). In order to decommission/remove the existing septic tanks on each resident’s private property, the homeowners will need to coordinate with FDOH. Once the Subdivision is converted from individual septic sewer systems to a neighborhood -wide gravity sewer system, it will be owned and maintained by the City of North Miami. The City is the current water service provider and Miami Shores Village does not own or maintain any water or sewer infrastructure throughout the Village. In preliminary discussions with the City of North Miami, the Village will need to prepare a legal document or Water and Sewer Agreement to donate the completed gravity sewer system to the City of North Miami. The City has indicated that they do not have a standard donation form and recommended the Village reference MDWASD documents when developing the proposed agreement for this project. The current MDWASD Water and/or Sewer Application Form and a previously executed Sewer Agreement between MDWASD and North Bay Village are included in Appendix K for reference. Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDICES Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX A: Project Location Map N E 10 8T H S T QUAYSI DE BLVD N E 10 5T H S T BISCAYNE BLVD N E 12TH AV E N E 11 T H C T PEACHTREEDR N E 1 3 T H AV E N E 9T H C T N E 10 7T H ST EDIXIEHWY NE 10 4T H ST NE 10THAVE T O W E RS I DE T E R NEQUAYPLZ N E 1 0 9 T H S T NE 10 3RD ST N E 10 T H C T N E 1 0 T H P L N E 11 T H AV E PROJECT LOCATION MAP 0 250 500125 Feet 044448010 City of Miami Shores, Florida Miami Shores Estates Sewer Facilities Plan MM MB GR MARCH 2020 A DATE: DESIGN: DRAWN: CHECKED: KH NO.: \\ftlfp01\Data\Project\FTL_Civil\044 Jobs\044448010-Sewer Facilities Plan\GIS\Maps\Exhibits\A_ProjectLocation.mxd Ü600 North Pine Island Road, Suite 450 Plantation, Florida 33324 (954) 535-5100 Phone (561) 863-8175 Fax www.kimley-horn.com APPENDIX Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX B: Existing Wastewater System Overview %,%, %,%,%, %, %, %,%,%, %, $1$1!!2 !!2 !!2!!2 !!2 "T "T "T "T "T "T N E 12 Th A v e NE 11Th Ct NE 109T h St N E 10 8T h S t N E 1 0 7 T h S t N E 1 3 T h A ve N E 1 0 9 T h S t NE 110T h Ter N E 11 0T h S t Biscayne Blvd NE 11 T h Ct N E 11 T h Ave NE 110T h St SHOREVIEWHARBOUREPOINT CITYBANK 109 CLUB ALDI 8" 8" 8" 4" 6"4" 12" 4"6" 12" 2" 4" 4" 12" Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GISUser Community, Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN,GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMapcontributors, and the GIS User Community £¤11 2 3 4 5 6 7891011121314151617181920 21 22 23 24 25 26 27 28 29 30 31 32 33 3435363738394041424344454647484950515253545556575859606162636465666768697071727374 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172174175176177178179180181182183184 185 186 187188189190 191 173 0 100 200 300 40050Feet I SANITARY SEWER ATLAS LOCATION MAP NOTE:All dimensions and utility locations must be field verified. Symbology: "C`Sewer Meter / Miami-Dade Connection Pump Stations [Ú North Miami "T Private ®WASD !!2 Manhole $1 Cleanouts %,Fitting Pressurized Main In use By-Pass Abandoned Gravity Main by Diameter: 12" or larger 10" 8" or smaller Gravity Main Abandoned Laterals SEE PAGE 165 SEE PAGE 179 SEE PAGE (Out of service area) SEE PAGE 174 CITY OF NORTH MIAMI, FLORIDAPUBLIC WORKS DEPARTMENTWATER AND SEWER DIVISION Prepared by: Public Works GIS SpecialistDate: April 2019 Page 173 of 191 %,%,%,%,%, %,%,%,%, %,%, %,%, %,%, %,%, %,%, %,%, %,%, %,%, %,%, %,%,%,%, %,%, %, %, %, %, %, %, %, %,%,%,%,%,%,%,%, !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2 !!2!!2 !!2 !!2 !!2 !!2 !!2!!2 !!2 !!2 !!2 !!2 "T "T "T "T"T "T "T NE 108T h St N E 10 9T h S t E Dixie Hwy Biscayne Blvd NE 10 9T h St NE Quayside Ter N E 11 0T h S t NE 11 0T h Ter NE 11 0T h Ter N E 11 0T h S t SC-227 BISC.VILLAS,INC.,C.SANTIO CHARLOTTESTEVENS TR ATRIUMCOURT, LLCCHARLOTTESTEVENS TR QUAYSIDE LA FONTANASHOPS 18_5 8" 8" 8" 8" 8 " 8 " 8" 8" 8" 8" 8" 8" 8" 8" 8" 8"8"8" 12" 12" 4" 12" 6" 4" 2"12" 12" 12" 8" 8" 4" 12" 12" 12" 6" 12" 6" 4" 8" Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GISUser Community, Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN,GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMapcontributors, and the GIS User Community £¤11 2 3 4 5 6 7891011121314151617181920 21 22 23 24 25 26 27 28 29 30 31 32 33 3435363738394041424344454647484950515253545556575859606162636465666768697071727374 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173175176177178179180181182183184 185 186 187188189190 191 174 0 100 200 300 40050Feet I SANITARY SEWER ATLAS LOCATION MAP NOTE:All dimensions and utility locations must be field verified. Symbology: "C`Sewer Meter / Miami-Dade Connection Pump Stations [Ú North Miami "T Private ®WASD !!2 Manhole $1 Cleanouts %,Fitting Pressurized Main In use By-Pass Abandoned Gravity Main by Diameter: 12" or larger 10" 8" or smaller Gravity Main Abandoned Laterals SEE PAGE 166 SEE PAGE 180 SEE PAGE 173 SEE PAGE 175 CITY OF NORTH MIAMI, FLORIDAPUBLIC WORKS DEPARTMENTWATER AND SEWER DIVISION Prepared by: Public Works GIS SpecialistDate: April 2019 Page 174 of 191 %,%,%,%, %,%,%,%, %,%,%, %,%, %,%, %,%, %,%, %,%, %,%, %,%,%, %, %,%,%,%, %,%, !!2 !!2!!2 !!2 !!2 !!2 !!2!!2 !!2 "T "T "T "T "T N E 11 T h Ct NE 10 5T h St N E 1 0 4 T h S t Biscayne Blvd NE 12Th Ave NE 103Rd St Towerside Te r N E 1 1 T h A ve VILLAGEDEL MAR BRENTWOOD APT DADE-COUTY PS SC-291 18_424 18_423 18_422 18_421 8" 8" 8 " 8 "8" 8" 12" 8" 12"12" 12" 12" 8" 4"6"12"12" 12" 8" 4" 12" 8" 8"12" Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GISUser Community, Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN,GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMapcontributors, and the GIS User Community £¤11 2 3 4 5 6 7891011121314151617181920 21 22 23 24 25 26 27 28 29 30 31 32 33 3435363738394041424344454647484950515253545556575859606162636465666768697071727374 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178180181182183184 185 186 187188189190 191 179 0 100 200 300 40050Feet I SANITARY SEWER ATLAS LOCATION MAP NOTE:All dimensions and utility locations must be field verified. Symbology: "C`Sewer Meter / Miami-Dade Connection Pump Stations [Ú North Miami "T Private ®WASD !!2 Manhole $1 Cleanouts %,Fitting Pressurized Main In use By-Pass Abandoned Gravity Main by Diameter: 12" or larger 10" 8" or smaller Gravity Main Abandoned Laterals SEE PAGE 173 SEE PAGE (Out of service area) SEE PAGE (Out of service area) SEE PAGE 180 CITY OF NORTH MIAMI, FLORIDAPUBLIC WORKS DEPARTMENTWATER AND SEWER DIVISION Prepared by: Public Works GIS SpecialistDate: April 2019 Page 179 of 191 Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX C: Comprehensive Development Master Plan (CDMP) Policies Comprehensive Development Master Plan policies related to sewer extensions The following are the most relevant policies in the Comprehensive Development Master Plan which speak to the County's priorities regarding extending sewer services. Water, sewer and solid waste element WS-2E. Miami-Dade County shall continue and expand its current practice of installing oversize water and sewer mains and associated facilities in anticipation of future needs consistent with Land Use Element policies which affect the timing, staging, and location of future development, and shall require developers dedicating such facilities to the County to conform with this policy. All applications and proposed agreements for water and/or sewer extensions submitted to the Water and Sewer Department that are inside of and within 330 feet of the Urban Development Boundary and that may involve the installation of oversized water or sewer mains shall be subject to additional review by a designated water and sewer review committee. The installation of oversized water and sewer mains will be consistent with engineering requirements to protect the public health and safety of the area residents and Land Use Element policies. WS-3A. Public facility improvements will be evaluated for funding in accordance with the following general criteria: 1.) Improvements necessary to protect the health, safety, and environmental integrity of the community, consistent with the policies of this Plan and applicable federal, state, and County regulatory requirements. 2.) Improvements necessary to meet any deficiencies that may exist in capacity or in performance. These include the retrofit of deteriorating facilities which fail or threaten to fail to meet health, safety, or environmental standards. 3.) Improvements extending service to previously unserved developed areas within the Urban Development Boundary. 4.) Improvements identified in adopted functional plans and addressing system details that are beyond the scope of the comprehensive plan for wastewater and potable water facilities, and that are consistent with the goals, objectives, and policies of the comprehensive plan. 5.) Cost-effective improvements to expand capacity, maximize operational efficiency, and increase productivity. 6.) *** 7.) In providing for improvements to the sanitary sewer collection system, the following additional criteria shall also be considered: (a) Location within a public water supply wellfield protection zone. (b) Potential for the disposal of waste other than domestic waste, (c) Designation on the Land Use Plan map for a use more intense than estate density residential. (d) Potential for impacts on existing private wells. (e) Location within areas of low land elevation in conjunction with high water table. (f) Locations with poor soil conditions. (g) Proximity to existing sewer mains. WS-4B. Interim wastewater treatment plants within the Urban Development Boundary shall continue to be phased out as sewer service becomes available, with highest priority given to phasing out existing industrial wastewater plants in accord with regulati ons and procedures established by the Board of County Commissioners. The Division of Environmental Resources Management shall use its administrative. enforcement, and permitting authority to implement these regulations. WS-4D. Anywhere that the use of existing private wells, interim wastewater treatment plants, or septic tanks pose a threat to the public health or the environmental integrity of Miami -Dade County, the County shall assert its authority to create a Special Taxing District to finance connections to the public water supply or to the public sewer system. WS-4G. It is the policy of the County to mandate the connection of existing developments to the regional wastewater system upon extension of the wastewater collection system proximate to said developments. However, the County shall not require connections to be made in areas with gravity systems that are surcharged at any time of the day, for more than 30 days per year. Connections will not be required if the system is subject to overflows, discharge or exfiltration of sewage at any time during the year under any storm event of five years or less. WS-4H. Miami-Dade County shall coordinate with municipalities and the State of Florida to monitor existing septic tanks that are currently at risk of malfunctioning due to high groundwater levels or flooding and shall develop and implement prog rams to abandon these systems and/or connect users to the public sewer system. The County shall also coordinate to identify which systems will be adversely impacted by projected sea level rise and additional storm surge associated with climate change and shall plan to target those systems to protect public health, natural resources, and the region' s tourism industry. Land use element LU-2B. Priority in the provision of services and facilities and the allocation of financial resources for services and facilities in Miami-Dade County shall be given first to serve the area within the Urban Infill Area and Transportation Concurrency Exception Areas. Second priority shall be given to serve the area between the Urban Infill Area and the Urban Development Boundary. And third priority shall support the staged development of the Urban Expansion Area (UEA). Urban services and facilities which support or encourage urban development in Agriculture and Open Land areas shall be avoided, except for those improvements necessary to protect public health and safety and which service the localized needs of these non-urban areas. Areas designated Environmental Protection shall be particularly avoided. LU-2D. Miami-Dade County agencies shall continue and, where possible, improve their efforts to coordinate projects to construct or repair infrastructure such as roadways and utilities in order to minimize the disruption and inconvenience caused by such construction activities. LU-3E. By 2017, Miami-Dade County shall initiate an analysis on climate change and its impacts on the built environment addressing development standards and regulations related to investments in infrastructure, development/redevelopment and public facilities in hazard prone areas. The analysis shall consider and build on pertinent information, analysis and recommendations of the Regional Climate Change Action Plan for the Southeast Florida Regional Climate Change Compact Counties, and will include the following elements: a) an evaluation of property rights issues and municipal jurisdiction associated with the avoidance of areas at risk for climate hazards including sea level rise; b) an evaluation of the current land supply-demand methodology to consider and address, as appropriate, the risk associated with infrastructure investments in flood prone areas; and c) an evaluation of the CDMP long-term time horizon in relation to addressing projected long- range climate change impacts. Recommendations from the analysis shall address appropriate changes to land use designations and zoning of impacted properties, and development standards, among other relevant considerations. LU-31. Miami-Dade County shall make the practice of adapting the built environment to the impacts of climate change an integral component of all planning processes, including but not limited to comprehensive planning, infrastructure planning, building and life safety codes, emergency management and development regulations, stormwater management, and water resources management. LU-10A. Miami-Dade County shall facilitate contiguous urban development, infill, redevelopment of substandard or underdeveloped urban areas, moderate to high intensity activity centers, mass transit supportive development, and mixed-use projects to promote energy conservation. To facilitate and promote such development Miami-Dade County shall orient its public facilities and infrastructure planning efforts to minimize and reduce deficiencies and establish the service capacities needed to support such development. Conservation element CON-2D. Sewer Improvement Special Taxing Districts shall be established for all industrial and potentially hazardous commercial areas within the Urban Develop ment Boundary. Coastal management element Objective CM-9. Miami-Dade County shall continue to orient its planning, regulatory, and service programs to direct future population concentrations away from the Coastal High Hazard Area (CHHA) and FEMA "V" Zone. Infrastructure shall be available to serve the existing development and redevelopment proposed in the Land Use Element and population in the CHHA, but shall not be built, expanded, or oversized to promote increased population in the coastal high -risk area. CM-9F. Public expenditures that subsidize new or expanded infrastructure that would encourage additional population growth in the Coastal High Hazard Areas shall be prohibited. New public facilities shall not be built in the Coastal High Hazard Area, unless they are necessary to protect the health and safety of the existing population or for the following exceptions: public parks, beach or shoreline access; resource protection or restoration; marinas or Ports; or roadways, causeways and bridges necessary to maintain or improve hurricane evacuation times. Potable water and sanitary sewer facilities shall not be oversized to subsidize additional development in the Coastal High Hazard Area. CM-9H. Rise in sea level projected by the federal government, and refined by the Southeast Florida Regional Climate Change Compact, shall be taken into consideration in all future decisions regarding the design, location, and development of infrastructure and public facilities in the County. Economic element ECO-4C. Miami-Dade County will program infrastructure improvements in municipalities taking into account their socio-economic development priorities and overall County priorities. ECO-4D. Infrastructure prioritization should consider needs of existing and target industrie s in industrial areas that do or can support these industries, especially along trade corridors and around trade hubs. Capital improvements element (interpretive text) Improvements to the water and sewer systems are based on the following general criteria: 1. Improvements, which are necessary to protect the health, safety and environmental integrity of the community, and meet federal, State, and local regulatory requirements. 2. Improvements, which are necessary to meet existing deficiencies in capacity or in performance. These include the retrofit of deteriorating facilities, which fail or threaten to fail to meet health, safety or environmental standards. 3. Improvements which extend service to previously unserved developed areas. 4. Improvements which have been identified in adopted functional plans and address system details which are beyond the scope of the comprehensive plan for wastewater facilities and potable water facilities and are consistent with the goals, objectives and policies of the comprehensive plan. 5. Cost-effective improvements to expand capacity, maximize operational efficiency, and increase productivity. In providing for improvements to the sanitary sewer collection system, the following additional criteria are also taken into account: 1. Location within a public water supply wellfield protection zone. 2. Potential for the disposal of wastes other than domestic waste. 3. Designation on the Future Land Use Plan map for a use more intense than estate density residential. 4. Potential for impacts on existing private wells. 5. Areas with low land elevation in conjunction with high water table. 6. Soil conditions. 7. Proximity to open bodies of water. 8. Proximity to existing sewer mains. CIE-2A. Public funds will not be used to subsidize increased overall density or inten sity of urban development in coastal high hazard areas. However, public beach, shoreline access, resource restoration, port facilities or similar projects may be constructed. CIE-QB. Replacement of infrastructure in coastal high hazard areas will be at or below existing service capacity except where such replacement will improve hurricane evacuation time, mitigate storm damage, or meet regulatory requirements. Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX D: FDEP Springs Funding Guidance Document SPRINGS FUNDING GUIDANCE C. Estimating Nitrogen Load Reductions from Springs Restoration Projects How to Apply Atte_nuation and Recharge Factors In the Department's nitrogen inventories, a load to groundwater includes the nitrogen input to land surface, an attenuation factor that accounts for removal that occurs in the soil (nitrification-denitrification, plant uptake, volatilization, etc.) and a recharge factor that takes into account the annual rate of recharge to the Upper Floridan aquifer (based on overburden material thickness and head differences between the surficial aquifer system and the Upper Floridan aquifer). Inputs of nitrogen are specific to the sources being addressed and should be reported in lbs/year (yr.). Attenuation factors vary based on the nitrogen source category (e.g., septic tank, wastewater sprayfield, agricultural field with row crops, etc.). Attenuation factors for most of the sources being addressed in projects and multipliers to use in calculations are shown below. Source type % Attenuated % Leached Multiplier to use Wastewater sprayfield 60 40 0.40 Wastewater reuse 75 25 0.25 Wastewater Rapid 25 75 0.75 Infiltration Basin (RIB) Conventional septic 50 50 0.50 system Farm fertilizer 80 20 0.20 Lawn fertilizer 80 20 0.20 Livestock on pasture 90 10 0.10 Note: Septic system values include treatment in both the drainfield (30%) and soil (20%). Recharge factors are based on available Geographic Information System (GIS) coverages for most of the state. The recharge factor is applied to the attenuated input. For the area of interest, use the appropriate recharge coverage in GIS to determine the recharge rate ( or rates, if area of interest is within more than one recharge regime) and assign the corresponding weighted factor. The recharge factors are applied as shown below. Recharge Rate Designation % Recharged Multiplier to use >= 10in/yr High 90 0.90 3 to 10 in/yr Medium 50 0.50 0 to 3 in/yr Low 10 0.10 Discharge Discharge 0 0 How to Calculate Nitrogen (N) Reduction from Wastewater Projects These may include wastewater treatment plant (WWTP) upgrades to reduce nitrogen, re- distributing applied wastewater to other methods or areas. Springs Funding Guidance As of October 2017 Page 19 of 27 SPRINGS FUNDING GUIDANCE LOAD REDUCTION BY UPGRADING WASTEWATER PLANT TREATMENT. For domestic WWTP upgrades from secondary treatment to advanced wastewater treatment to reduce nitrogen (assuming wastewater application volume and method does not change): • REDUCTION IN LOAD DUE TO IMPROVED TREATMENT (lbs/yr Total Nitrogen (TN)= (Original annual TN input-Anticipated annual TN input after upgrade) X effluent treatment application method attenuation factor X effluent application area recharge factor LOAD REDUCTION BY CHANGING APPLICATION METHODS. For domestic WWTP projects that involve changing application methods and/ or areas applied. An example would be if additional reclaimed water lines are extended within the service area so that some of the wastewater being treated in RIBs (in a high recharge area) would be used for reclaimed water irrigation instead (in a low recharge area). Using this example, the change in N loading would be calculated as follows : Assuming: o RIB percent leached 75%. Multiplier= 0.75 o Reuse percent leached 25%. Multiple= 0.25 o High recharge weighted factor 90%. Multiplier = 0.90 o Low recharge weighted factor 10%. Multiplier = 0.10 • REDUCTION IN LOAD DUE TO CHANGE IN LAND APPLICATION METHOD (lbs/yr TN) = ([Current input of N from RIBs X 0.75 X 0.90] + [current input of N to reclaimed X 0.25 X 0.101) -([Anticipated input of N to RIBs X 0.75 X 0.90] + [anticipated input of N to reclaimed X 0.25 X 0.101) ([Current input of N to LAM1 X LAM1 Percent leached X Weighted recharge for LAM1 application area]+ [current input of N to LAM2 X LAM2 Percent leached X Weighted recharge for LAM2 application area])-([Anticipated input of N to LAM1 X LAM1 Percent leached X Weighted recharge for LAM1 application area]+ [Anticipated input of N to LAM2 X LAM2 Percent leached X Weighted recharge for LAM2 application area]) Where LAM= Land Application Method (RIBs, sprayfield, or reclaimed) How to Calculate Septic Tank Load Reductions to Groundwater SEPTIC SYSTEM LOAD TO GROUNDWATER. If a project involves reducing septic tank loads by sewering or replacing septic tanks with nitrogen reducing systems, it is first necessary to calculate the initial load that will be reduced. Assume the following: o Typical septic system TN input to the environment= 23.7 lbs/yr o Based on 2.63 persons per household2 and 9.012 lbs/year per capita input of TN3 2 Florida statewide census (2011-2015) https://www.census.gov/quickfacts/FL 3 EPA estimate based on average value from several references. Springs Funding Guidance October 2017 Page 20 of 27 SPRINGS FUNDING GUIDANCE o Septic system attenuation (drainfield + soil) leaching 50%. Multiplier= 0.50 • SEPTIC SYSTEM LOAD TO GROUNDWATER (lbs/yr TN)= Number of septic systems X per-system input X 0.50 X Recharge Factor LOAD REDUCTIONS FROM SEPTIC TO SEWER. To estimate N load reductions by sewering, it is necessary to consider the load being reduced by removing the septic systems as well as the load increase from additional wastewater that would be treated at the plant and applied. • LOAD REDUCTION FROM SEPTIC-TO-SEWER PROJECT (lbs/yr-TN)= (Input from septic systems to be connected X 0.50 X Recharge Factor for septic tank area) -(Input from septic systems to be connected X %N remaining after treatment at the wastewater plant X Attenuation Factor of wastewater application method X Recharge Factor for wastewater treatment area) Note: If the wastewater application area is outside of the spring contributing area, the load reduction= total of septic systems' load to groundwater. LOAD REDUCTIONS FROM UPGRADING TO NITROGEN-REDUCING SYSTEMS. Estimating N load reductions by converting septic systems to nitrogen reducing systems requires some assumptions about the types of nitrogen reducing systems anticipated to be installed. These are the types of systems that are available, or are being studied, and their associated nitrogen removal benefits.4 Type system Overall treatment effectiveness (% N removed) Conventional septic system 30% Aerobic treatment unit + drainfield 51% Current nitrogen reducing performance based treatment 65% system Recirculating media filter 65% Lined media treatment 65% Passive nitrogen removal system in tank 93% Converting to a system that reduces nitrogen by 65% may be a conservative estimate. This will provide a 35 % reduction over conventional systems and is easily calculated. There may be a better estimate of the increase in treatment. Assumptions: o Attenuation by drainfield and soil (conventional systems), leaching 50% = Multiplier= 0.50 4 From Department of Health, Cost Comparisons of Various Onsite Sewage Treatment System Nitrogen Reducing Technologies 0uly 21, 2016 draft). Springs Funding Guidance October 2017 Page 21 of 27 SPRINGS FUNDING GUIDANCE o Net N removed by nitrogen reducing system, assumed= 65%, 35% leached. Multiplier= 0.35 o N removed by soil treatment below the drainfield = 20%, 80% leached. Multiplier= 0.80 • DIFFERENCE IN LOAD TO GROUNDWATER BY UPGRADING CONVENTIONAL SEPTIC SYSTEMS TO ONES ACHIEVING 65% N REDUCTION (lbs/yr TN) = ([Input from septic systems to be converted X 0.50] -[Input from septic systems to be converted X 0.35 X 0 .80]) X Recharge Factor for septic tank area How to calculate TN load reductions from agricultural activities that reduce nitrogen loads Agricultural activities (such as fertilizer applications on cropland, pastures, sod; animal farming operations; nurseries) are complex and variable and the actions to reduce nitrogen loads are often innovative and typically related to research projects. For that reason, justifications for the anticipated TN load reductions should be provided on a case by case basis. However, they must still be expressed as lbs/yr reductions in load to groundwater and use existing attenuation and recharge factors that are consistent with the Department's Nitrogen Source Inventory and Loading Tool (NSILT) methodology. Contact the Department's Division of Environmental Assessment and Restoration if there are questions. Springs Funding Guidance October 2017 Page 22 of 27 Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX E: Nutrient Calculations Shores Estate Subdivision 100Septic Tanks 23.7lbs of TN/year/septic tank 0.5Attenuation Multiplier 0.9Recharge Factor Total1067lbs of TN/year to ground water Septic Tank TN Load to Ground Water Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX F: Environmental Considerations 3/12/2020 FNAI Biodiversity Matrix https://data.labins.org/mapping/FNAI_BioMatrix/GridSearch.cfm?sel_id=68482&extent=781734.3908,212370.6318,783343.7338,213979.9768 1/3 NOTE: The Biodiversity Matrix includes only rare species and natural communities tracked by FNAI. Report for 1 Matrix Unit: 68482 Descriptions DOCUMENTED - There is a documented occurrence in the FNAI database of the species or community within this Matrix Unit. DOCUMENTED-HISTORIC - There is a documented occurrence in the FNAI database of the species or community within this Matrix Unit; however the occurrence has not been observed/reported within the last twenty years. LIKELY - The species or community is known to occur in this vicinity, and is considered likely within this Matrix Unit because: 1.documented occurrence overlaps this and adjacent Matrix Units, but the documentation isn’t precise enough to indicate which of those Units the species or community is actually located in; or 2.there is a documented occurrence in the vicinity and there is suitable habitat for that species or community within this Matrix Unit. POTENTIAL - This Matrix Unit lies within the known or predicted range of the species or community based on expert knowledge and environmental variables such as climate, soils, topography, and landcover. Matrix Unit ID: 68482 0 Documented Elements Found 0 Documented-Historic Elements Found 2 Likely Elements Found Scientific and Common Names Global Rank State Rank Federal Status State Listing Eumops floridanus Florida bonneted bat G1 S1 LE FE Trichechus manatus West Indian Manatee G2 S2 LE FE Matrix Unit ID: 68482 26 Potential Elements for Matrix Unit 68482 Scientific and Common Names Global State Federal State 1018 Thomasville Road Suite 200-C Tallahassee, FL 32303 850-224-8207 850-681-9364 fax www.fnai.org Florida Natural Areas Inventory Biodiversity Matrix Query Results UNOFFICIAL REPORT Created 3/12/2020 (Contact the FNAI Data Services Coordinator at 850.224.8207 or kbrinegar@fnai.fsu.edu for information on an official Standard Data Report) 3/12/2020 FNAI Biodiversity Matrix https://data.labins.org/mapping/FNAI_BioMatrix/GridSearch.cfm?sel_id=68482&extent=781734.3908,212370.6318,783343.7338,213979.9768 2/3 Rank Rank Status Listing Athene cunicularia floridana Florida Burrowing Owl G4T3 S3 N SSC Bolbocerosoma hamatum Bicolored Burrowing Scarab Beetle G3G4 S3 N N Chamaesyce porteriana Porter's Broad-leaved Spurge G2 S2 N E Conradina grandiflora Large-flowered Rosemary G3 S3 N T Crocodylus acutus American Crocodile G2 S2 LT FT Ctenogobius stigmaturus Spottail Goby G2 S2 N N Elytraria caroliniensis var. angustifolia Narrow-leaved Carolina Scalystem G4T2 S2 N N Encyclia cochleata var. triandra Clamshell Orchid G4G5T2 S2 N E Eretmochelys imbricata Hawksbill Sea Turtle G3 S1 LE FE Forestiera segregata var. pinetorum Florida Pinewood Privet G4T2 S2 N N Gambusia rhizophorae Mangrove Gambusia G3 S3 N N Glandularia maritima Coastal Vervain G3 S3 N E Gopherus polyphemus Gopher Tortoise G3 S3 C ST Halophila johnsonii Johnson's Seagrass G2 S2 LT E Jacquemontia curtissii Pineland Jacquemontia G2 S2 N T Phyllanthus pentaphyllus var. floridanus Florida Five-petaled Leaf-flower G4T2 S2 N N Pteroglossaspis ecristata Giant Orchid G2G3 S2 N T Rallus longirostris scottii Florida Clapper Rail G5T3? S3? N N Rivulus marmoratus Mangrove Rivulus G4G5 S3 SC SSC Roystonea elata Florida Royal Palm G2G3 S2 N E Sachsia polycephala Bahama Sachsia G2 S2 N T Setophaga discolor paludicola Florida Prairie Warbler G5T3 S3 N N Swietenia mahagoni West Indies Mahogany G3G4 S3 N T Tantilla oolitica Rim Rock Crowned Snake G1G2 S1S2 N ST Trichomanes punctatum ssp. floridanum Florida Filmy Fern G4G5T1 S1 E E Zephyranthes simpsonii Redmargin Zephyrlily G2G3 S2S3 N T Disclaimer The data maintained by the Florida Natural Areas Inventory represent the single most comprehensive source of information available on the locations of rare species and other significant ecological resources statewide. However, the data are not always based on comprehensive or site-specific field surveys. Therefore, this information should not be regarded as a final statement on the biological resources of the site being considered, nor should it be substituted for on-site surveys. FNAI shall not be held liable for the accuracy and completeness of these data, or opinions or conclusions drawn from these data. FNAI is not inviting reliance on these data. Inventory data are designed for the purposes of conservation planning and scientific research and are not intended for use as the primary criteria for regulatory decisions. 3/12/2020 FNAI Biodiversity Matrix https://data.labins.org/mapping/FNAI_BioMatrix/GridSearch.cfm?sel_id=68482&extent=781734.3908,212370.6318,783343.7338,213979.9768 3/3 Unofficial Report These results are considered unofficial. FNAI offers a Standard Data Request option for those needing certifiable data. National Wetlands Inventory Map U.S. Fish and Wildlife Service, National Standards and Support Team,wetlands_team@fws.gov Wetlands Estuarine and Marine Deepwater Estuarine and Marine Wetland Freshwater Emergent Wetland Freshwater Forested/Shrub Wetland Freshwater Pond Lake Other Riverine March 4, 2020 0 0.25 0.50.125 mi 0 0.35 0.70.175 km 1:1 4,435 This page was produced by the NWI mapperNational Wetlands Inventory (NWI) This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site. Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX G: Detailed Opinions of Probable Cost DESCRIPTIONQTYUNITUNIT COSTCOSTDESCRIPTIONQTYUNITUNIT COSTCOST Mobilization1 Each$20,000$20,000Mobilization1 Each$30,000$30,000 8" Gravity4,545 LF$100.00$454,5004" Vac Main8,976 LF$50.00$448,800 Manhole14 Each$5,000$70,0006" Vac Main3,958 LF$60.00$237,480 Lift Station1 Each$250,000$250,000Vac Station1 Each$500,000$500,000 8" Force Main328 LF$130.00$42,640Valve Pit38 Each$4,000$152,000 Valve (FM)1 Each$1,800$1,8008" Force Main328 LF$130.00$42,640 Road Repair0.95 Mile$500,000$475,000Valve (FM)1 Each$1,800$1,800 Road Repair0.95Mile$500,000$475,000 $1,313,940$1,887,720 $394,182$566,316 $262,788$377,544 $1,970,910$2,831,580 Sewer Capital Cost Subtotal 30% Contingency Design, Permitting and Const. Phase Vacuum Sewer Capital Costs Shores Estate Subdivision SEWER CAPITAL COST TOTAL Sewer Subtotal 30% Contingency Design, Permitting and Const. Phase SEWER CAPITAL COST TOTAL Gravity Sewer Project Costs Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX H: Detailed Net Present Worth Calculations DESCRIPTIONQTYUNITUNIT COSTCOSTUSPWFSPPWFRSO&MNPW Mobilization1 Each$20,000$20,00026.97$20,000 8" Gravity4,545 LF$100.00$454,5000.71$181,800.00$326,231 Manhole14 Each$5,000$70,00026.970.71$28,000.00$50,245 Lift Station1 Each$250,000$250,00026.970.87$54,000.00$125,000.00$902.50$212,590 Valve (FM)1 Each$1,800$1,80026.970.71$720.00$1,292 Road Repair0.95 Mile$500,000$475,00026.97$475,000 $1,085,358Sewer Net Present Worth Gravity Sewer Net Present Worth Shores Estate Subdivision DESCRIPTIONQTYUNITUNIT COSTCOSTUSPWFSPPWFRSO&MNPW Mobilization1 Each$30,000$30,000.0026.97$30,000 4" Vac Main8,976 LF$50.00$448,800.0026.970.71$179,520.00$322,140 6" Vac Main3,958 LF$60.00$237,480.0026.970.71$166,236.00$120,193 Vac Station1 Each$500,000$500,000.0026.970.87$19,266.67$250,000.00$12,950.00$648,634 Valve Pit38 Each$4,000$152,000.0026.970.90$411.67$0.00$152,371 8" Force Main328 LF$130.00$42,640.0026.970.71$59,696.00$522 Valve (FM)1 Each$1,800$1,800.0026.970.71$720.00$1,292 Road Repair0.95Mile$500,000$475,000.0026.97$475,000 $1,750,151Sewer Net Present Worth Vacuum Sewer Net Present Worth Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX I: Design Considerations – Vacuum Sewer Systems 1 Design Considerations-Vacuum Sewer Systems If any of the following standards or criteria do not apply to a project or if the project has not been designed to comply with the following standards or criteria, please provide an explanation. An application for an individual permit is required for construction of a vacuum sewer system. [62-604.600(7)(a), Florida Administrative Code (F.A.C.)] General ___ 1. The project is designed based on an average daily flow of 100 gallons per capita plus wastewater flow from industrial plants and major institutional and commercial facilities unless water use data or other justification is used to better estimate the flow. [RSWF 11.243] ___ 2. The design includes an appropriate peaking factor (minimum ratio of 3 for peak hour/design average flow). [RSWF 11.243] ___ 3. Procedures are specified for operation of the existing collection/transmission system during construction. [RSWF 20.15] ___ 4. Except for on-lot facilities, the project is designed to be located on public right-of-ways, land owned by the permittee, or easements. [62-604.400(1)(b), F.A.C.] ___ 5. A central management entity, be it public or private, is responsible for operation and maintenance of the on-lot facilities. [62-604.400(4), F.A.C.] ___ 6. The project is designed to be located no closer than 100 feet from a public drinking water supply well and no closer than 75 feet from a private drinking water supply well; or documentation is provided showing that another alternative will result in an equivalent level of reliability and public health protection. [62-604.400(1)(c), F.A.C.] ___ 7. The project is designed with no physical connections between a public or private potable water supply system. [RSWF 38.1 and 48.5] ___ 8. The project is designed to preclude the deliberate introduction of storm water, surface water, groundwater, roof runoff, subsurface drainage, swimming pool drainage, air conditioning system condensate water, non-contact cooling water and sources of uncontaminated wastewater. [62-604.400(1)(d), F.A.C.] ___ 9. At the completion of each days work, testing on vacuum mains and vacuum service pit connections laid that day is specified requiring; 1) the completed portion of the system be plugged and subjected to a vacuum of 22 inches Hg and then allowed to stabilize for 15 minutes prior to monitoring; and 2) a vacuum loss of less than l % per hour during the minimum testing period of 2 hours. [MOPFD-12 #1 Page 205] ___ 10. Final testing on completed vacuum mains and vacuum service pit connections is specified requiring: 1) the completed portion of the system be plugged and subjected to a vacuum of 22 inches Hg and then allowed to stabilize for 15 minutes prior to monitoring; and 2) a vacuum loss of less than l % per hour during the minimum testing period of 4 hours. [MOPFD-12 #2 Page 205] Vacuum Collection System ___ 11. The entire piping network is designed to keep the bore of the entire pipeline open; sections of pipeline are not purposely sealed. [MOPFD-12 #2 Page 200] 2 ___ 12. The vacuum sewer system is designed with a minimum air-to-liquid ratio of two parts air to one part liquid. [MOPFD-12 #5 Page 200] ___ 13. The vacuum sewer system is designed with a maximum static loss of 13 feet and a maximum friction loss of 5 feet in any single flow path. [MOPFD-12 #6 and #7 Page 200] ___ 14. The project is designed with no vacuum sewer mains less than 4 inches in diameter. [MOPFD-12 #2 Page 201] 15. Pipe and fittings for vacuum sewer pipe is SDR 21 pressure rated PVC pipe with double-lipped, push- on gasketed joints. [MOPFD-12 #13 Page 202 and Page 129] ___ 16. General design configuration for uphill transport is based on a saw tooth pipeline profile; or documentation is provided showing other vertical profiles are justified by appropriate engineering data. [MOPFD-12 #1 Page 201] ___ 17. When vacuum sewer mains or branches must ascend a hill, multiple lifts are designed at a minimum distance of 20 feet apart. Between each lift, vacuum lines are installed with a uniform slope, so that minimum fall of 0.25 feet is achieved between these lifts. [MOPFD-12 #10 Pages 201 and 202] ___ 18. The project is designed with no single lift of vacuum sewer main exceeding 3 feet in height. [MOPFD-12 #6 Page 201] ___ 19. The project is designed with 5 maximum lifts in a series. A series of 5 lifts is designed to be separated by at least 100 feet of vacuum mains from the next lift or series of lifts, at least one energy input is designed in the zone of separation. [62-4.070(3), F.A.C.] ___ 20. If not uphill transport, vacuum sewer mains are designed with a minimum slope of 0.20%. For profile changes less than 125 feet apart, the minimum fall between profile changes is 0.25 feet. [MOPFD-12 #3 Page 201] ___ 21. If directional drilling, installation tolerances for vacuum sewer main slope are specified the same as those required for open trenching. [62-4.070(3), F.A.C.] ___ 22. The maximum design flows (i.e., peak flows) for vacuum sewer main sizing is designed as follows: 4-inch pipe/38 gallons per minute (gallons per minute (gpm)); 6-inch pipe/105 gpm; 8-inch pipe/210 gpm; and 10-inch pipe/375 gpm. For vacuum mains larger than 10-inches, flow data supports the peak design flow capacity of that pipe size. [MOPFD-12 #4 Page 201] ___ 23. The project is designed with 2000 feet maximum length for any one run of 4-inch diameter vacuum sewer main. [MOPFD-12 #5 Page 201] ___ 24. For changes in horizontal alignment, two 45-degree bends connected by a short section of piping are designed, rather than one 90-degree bend. [MOPFD-12 #8 Page 201] ___ 25. The project is designed with isolation valves at every branch connection and at intervals no greater than 1500 feet on vacuum sewer mains. Resilient coated wedge gate valves and a valve box or other approved apparatus, to facilitate proper use of the valve, are specified. [MOPFD-12 #9 Page 201] ___ 26. The vacuum sewer system is designed to prevent damage from superimposed loads. [RSWF 33.7] ___ 27. The vacuum sewer system is designed to meet the “Stream Crossings” portion (Items 27-33) of the Collection/Transmission System Design Information beginning on page 4 of DEP Form 62- 604.300(8)(a), Notification/Application for Constructing a Domestic Wastewater Collection/Transmission System. [62-604.300(8)(a), F.A.C.] ___ 28. New or relocated vacuum sewers are located to provide horizontal distance of at least three feet, and preferably ten feet, between the outside of the vacuum sewer and any existing or proposed water main; or documentation is provided showing technical or economic justification for each exemption and providing alternative construction features that offer a similar level of reliability and public health protection. [62-604.400(3) and 62-555.314(1)(b) and (5), F.A.C.] 3 ___ 29. New or relocated vacuum sewers crossing any existing or proposed water main are located so the outside of the water main is at least six inches, and preferably 12 inches, above or at least 12 inches below the outside of the vacuum sewer; or documentation is provided showing technical or economic justification for each exemption and providing alternative construction features that offer a similar level of reliability and public health protection. [62-604.400(3) and 62-555.314(2)(a) and (5), F.A.C.] ___ 30. At the vacuum sewer and water main crossings described in Item 29 above, one full length of vacuum sewer pipe is centered above or below the water main so that the vacuum sewer joints are as far as possible from the water main, or alternatively, the vacuum sewer and water pipes are arranged so that vacuum sewer joints are at least three feet from all water main joints; or documentation is provided showing technical or economic justification for each exemption and providing alternative construction features that offer a similar level of reliability and public health protection. [62-604.400(3) and 62-555.314(2)(c) and (5), F.A.C.] ___ 31. New or relocated vacuum sewers are located to provide horizontal distance of at least three feet, and preferably ten feet, from the drains of any existing or proposed fire hydrants with underground drains. [62-604.400(3) and 62-555.314(4), F.A.C.] ___ 32. New or relocated vacuum sewers are located to provide the same horizontal, vertical and joint distance for any existing or proposed reclaimed water main as specified in Items 28, 29 and 30 above for a water main; or documentation is provided showing technical or economic justification for each exemption and providing alternative construction features that offer a similar level of reliability and public health protection. [62-4.070(3), F.A.C.] Vacuum Valves ___ 33. Vacuum valves with the ability to pass a 3-inch spherical solid are specified. [MOPFD-12 #1 Page 204] ___ 34. Valves that are vacuum-operated on opening and spring-assisted on closing are specified. [MOPFD-12 #2 Page 204] ___ 35. Valve configuration is designed so that the collection system vacuum ensures positive valve seating. Valve plunger and shaft is designed to be completely out of the flow path when valve is in the open position. [MOPFD-12 #3 Page 204] ___ 36. The valve is designed to be equipped with a sensor-controller that relies on atmospheric air and vacuum pressure from the downstream side of the valve for its operation, thereby requiring no other power source. The controller is designed to be capable of maintaining the valve fully open for a fixed period of time and be field-adjustable over a range of 3 to 10 seconds. [MOPFD-12 #4 Page 204] ___ 37. With the exception of the gravity lateral line air-intake, no other external sources of air are designed as a part of the valve assembly. [MOPFD-12 #5 Page 204] ___ 38. An internal sump breather unit arrangement is designed to connect the valve controller to its air source and provide a means of ensuring that no liquid can enter the controller during system shutdowns and restarts. It shall also be designed to prevent sump pressure from forcing the valve open during low- vacuum conditions and provide positive sump venting, regardless of traps in the home gravity service line. [MOPFD-12 #6 Page 204] Valve Pits ___ 39. Peak flow to any vacuum valve pit is designed to a maximum of 3 gallons per minute. [MOPFD-12 #3 Page 202] ___ 40. When specific valve service lines having suction lifts in excess of 5.5 feet are designed, the static losses added to the losses for that main do not exceed 13 feet. [MOPFD-12 #6 Page 200] 4 ___ 41. Suction lifts from the bottom of the holding sump to the valve centerline do not exceed 8 feet. [MOPFD-12 #6 Page 200] ___ 42. A single valve pit is designed to serve a maximum of four separate building sewers, but no more than 3 gallons per minute. [MOPFD-12 #1 Page 202] 43. On a system-wide design basis, the overall separate building sewer to valve pit ratio does not exceed 2.5: l. [MOPFD-12 #1 Page 202] ___ 44. No single property or parcel is designed to be served by more than one valve pit, unless justification is provided to support multiple valve pits. [MOPFD-12 #2 Page 202] ___ 45. Valve pits installed within a road right-of-way or other area subject to vehicular traffic shall be designed and installed to withstand appropriate traffic loads. [MOPFD-12 #4 Page 202] ___ 46. Valve pits are designed to have a receiving sump with a minimum of 50 gallons of storage. [MOPFD-12 #5 Page 202] ___ 47. Valve pits are designed to prevent entrance of water in the sump and for the vacuum valve to remain fully operational if submerged. [MOPFD-12 #6 Page 203] ___ 48. Valve pit locations are designed to be easily accessible, so that valves may be easily removed and replaced. [MOPFD-12 #7 Page 203] ___ 49. Valve pits are designed to include a 3” flexible PVC connector connected directly to the valve pit between the valve pit and vacuum sewer main. [MOPFD-12 Page 162] ___ 50. Valve pits are designed to include gravity service connection stub-outs piping to which the sewer customer will ultimately connect. Customer connections are designed via gravity flow to the vacuum pit location. [MOPFD-12 #9 Page 203 and #1 Page 209] Buffer Tanks ___ 51. Buffer tanks are designed instead of single valve pits if there are nonresidential/commercial or high flow inputs greater than 3-gpm peak flow or if there is no other practical method of serving the property by additional vacuum mains and valve pits. [MOPFD-12 #1 Page 203] ___ 52. Buffer tanks are designed to have an operating sump of no less than 10 gallons at a wastewater depth of 10 to 14 inches. [MOPFD-12 #3 Page 203] ___ 53. No more than 25% of the total peak design flow on a system-wide basis is designed to enter through buffer tanks, unless justification is provided depending on static and friction loss and buffer tank location. [MOPFD-12 #4 Page 203] ___ 54. No more than 50% of the total peak design flow is designed to enter a single vacuum main through buffer tanks, unless justification is provided depending on static and friction loss and buffer tank location. [MOPFD-12 #5 Page 203] ___ 55. One 3-inch vacuum valve is designed to be used for every 15 gpm at peak wastewater flow. For higher flows, the wastewater is designed to be admitted to a splitter manhole which will evenly split and divert the flow to multiple valve buffer tank units. [MOPFD-12 #6 Page 203] ___ 56. When specific buffer tank valve pits having suction lifts in excess of 5.5 feet are designed, the static losses added to the losses for that main do not exceed 13 feet. [MOPFD-12 #6 Page 200] ___ 57. Suction lifts from the bottom of the holding sump to the valve centerline do not exceed 8 feet. [MOPFD-12 #6 Page 200] ___ 58. Dual buffer tanks are designed to be connected to a 6-inch or larger vacuum main; where three or more valves are used, an 8-inch vacuum main or larger is specified. [MOPFD-12 #7 Page 204] 5 ___ 59. The design requires: 1) buffer tanks be constructed of minimum 4-feet internal diameter precast concrete manhole sections; and 2) all joints and connections on the buffer tank must be water-tight. Above ground venting of the vacuum valve must be installed, to ensure proper venting, in the event that the buffer tank becomes filled with wastewater. [MOPFD-12 #8 Page 204] ___ 60. Provisions are included with the buffer tank design to allow for separation of the valve access area from the sanitary wastewater storage area. [MOPFD-12 #9 Page 204] ___ 61. Provisions are included with the buffer tank design for maintenance personnel access. [MOPFD-12 #9 Page 204] Individual Gravity Laterals ___ 62. Inspection and approval of individual gravity laterals are specified before final connection and vacuum valve installation requiring: 1) laterals be no less than 4 inches in diameter; and 2) laterals be schedule 40 PVC or pressure-rated PVC (SDR 21 or SDR 26) or similar. [MOPFD-12 #2 and #5 Page 210] ___ 63. Air-intakes for each individual gravity lateral are specified requiring that: 1) air-intake piping and fittings be the same diameter as the lateral; 2) air-intakes extend a minimum of 2 feet above ground level with a gooseneck to protect against flooding; 3) air-intakes contain a stainless-steel screen to prevent the entry of rodents, insects, and debris; and 4) air-intakes be located to prevent damage to the piping. As an alternative to air-intakes, 6-inch Dedicated Air Terminals are specified. [MOPFD-12 #8 Page 203 and #4 Page 210] Vacuum/Pump Stations ___ 64. In areas with high water tables, stations are designed to withstand flotation forces when empty. When siting the station, the design considers the potential for damage or interruption of operation because of flooding. Station structures and electrical and mechanical equipment are designed to be protected from physical damage by the 100-year flood. Stations are designed to remain fully operational and accessible during the 25-year flood unless lesser flood levels are appropriate based on local considerations, but not less than the 10-year flood. [62-604.400(2)(e), F.A.C.] ___ 65. Stations are designed to be readily accessible by maintenance vehicles during all weather conditions. [RSWF 41.2] ___ 66. The total volume of the vacuum collection tank is designed to be three times the collection tank operating volume, plus 400 gal, with a minimum size of 1000 gallons. [MOPFD-12 #3 Page 207] ___ 67. Necessary pipe, fittings, and valves are specified to allow for emergency pumping out of the vacuum collection tank. [MOPFD-12 #9 Page 206] ___ 68. A minimum of two pumping units are specified for both the vacuum pumps and the wastewater pumps, with each being capable of handling peak flow conditions with the other out of service. [MOPFD-12 #3 Page 206] ___ 69. The design includes provisions to automatically alternate the pumps in use. [RSWF 42.4] ___ 70. Vacuum pumps are designed for both peak flow from the vacuum valves adjusted to a 2:1 air-liquid inlet time ratio and for a system pump down time between 1 and 3 minutes with one pump not in service. [MOPFD-12 #2 Page 207 and 208] ___ 71. Wastewater discharge pumps are designed using an appropriate peaking factor. [MOPFD-12 #2 Page 206 and 207] ___ 72. Pumps handling raw wastewater are designed to pass spheres of at least 3 inches in diameter. Pump suction and discharge openings are designed to be at least 4 inches in diameter. [RSWF 42.33] ___ 73. The design requires pumps be placed such that under normal operating conditions they will operate under a positive suction head. [RSWF 42.34] ___ 74. Wastewater discharge pumps are adequate to maintain a minimum velocity of 2 feet per second in the force main. [RSWF 42.38] 6 ___ 75. Certification is specified from the pump manufacturer stating that wastewater discharge pumps are suitable for use in a vacuum sewer installation. [MOPFD-12 #5 Page 206] ___ 76. The design requires: 1) suitable shutoff valves (plug valves or resilient coated wedge gate valves) be placed on the suction line of wastewater discharge pumps; 2) suitable shutoff and check valves be placed on the discharge line of each wastewater discharge pump; 3) a check valve be located between the shutoff valve and the wastewater discharge pump; 4) check valves be suitable for the material being handled; 5) check valves be placed on the horizontal portion of discharge piping (except for ball checks, which may be placed in the vertical run); 6) all valves be capable of withstanding normal pressure and water hammer; and 7) all shutoff and check valves be operable from the floor level and accessible for maintenance. [MOPFD-12 #6 and #8 Page 206 ands RSWF 42.5] ___ 77. Isolation valves are specified between the vacuum collection tank, vacuum pump(s), influent line, and raw wastewater discharge pipe. [MOPFD-12 #7 Page 206] ___ 78. Vacuum station piping and fittings 4 inches and larger are specified to be 150 #ANSI flanged ductile iron. Piping and fittings less than 4 inches are specified to be schedule 80 PVC with solvent-welded joints. [MOPFD-12 #10 Page 206] ___ 79. Station testing requirements are specified in accordance with the vacuum system manufacturer's standard. [MOPFD-12 #12 Page 206] ___ 80. Instrumentation and control systems to provide operational functionality are specified to manufacturer’s standard. Provisions for automatic pump alternation are included in the instrumentation and control system. The instrumentation and control system to bear the UL label, per the requirements of UL 508 and UL 508A. [MOPFD-12 #1 and #2 Page 208] ___ 81. The design requires: 1) stations be protected from lightning and transient voltage surges; and 2) stations be equipped with lighting arrestors, surge capacitors, or other similar protection devices and phase protection. [62-604.400(2)(b), F.A.C.] ___ 82. The design provides for adequate ventilation in accordance with RSWF 42.7. [MOPFD-12 Page 208 and RSWF 42.7] ___ 83. Electrical equipment and installation are designed to meet the requirements of the National Electrical Code. [MOPFD-12 #2 Page 208] ___ 84. Adequate temperature control is designed for the main electrical equipment and primary power distribution. [MOPFD-12 #5 Page 209] ___ 85. Potable water, power, and telephone service is specified to be provided to the vacuum/pump station. [MOPFD-12 #6 Page 209] ___ 86. Outdoor lighting for security is specified. [MOPFD-12 #9 Page 209] ___ 87. Stations are designed and located on the site to minimize adverse effects from odors, noise, and lighting. [62-604.400(2)(c), F.A.C.] ___ 88. The design requires stations be enclosed with a fence or otherwise designed with appropriate features to discourage the entry of animals and unauthorized persons. Posting of an unobstructed sign made of durable weather resistant material at a location visible to the public with a telephone number for a point of contact in case of emergency is specified. [62-604.400(2)(d), F.A.C.] ___ 89. The design provides for suitable and safe means of access in accordance with RSWF 42.23. [RSWF 42.23] ___ 90. Specified construction materials are appropriate under conditions of exposure to hydrogen sulfide and other corrosive gases, greases, oils, and other constituents frequently present in wastewater. The ferrous metal components of the vacuum pump station are specified to be protectively coated to prevent corrosion. [MOPFD-12 #11 Page 206 and RSWF 42.25] ___ 91. The design includes provisions to facilitate removing pumps, motors, and other mechanical and electrical equipment. [RSWF 42.22] ___ 92. The design requires suitable devices for measuring wastewater flow at all pump stations. Indicating, totalizing, and recording flow measurement are specified for stations with a 1200 gpm or greater design peak flow. [RSWF 42.8] 7 ___ 93. The station is designed with no physical connections with any potable water supplies. If a potable water supply is brought to a station, reduced-pressure principle backflow-prevention assemblies are specified. [RSWF 42.9 and 62-555.360(4), F.A.C.] Emergency Operations for Vacuum/Pump Stations ___ 94. Stations are designed with an alarm system which activates in cases of power failure, pump failure, unauthorized entry, or any cause of pump station malfunction. Station alarms are designed to be telemetered to a facility that is manned 24 hours a day. If such a facility is not available, the alarm is designed to be telemetered to utility offices during normal working hours and to the home of the responsible person(s) in charge of the lift station during off-duty hours. Note, if an audio-visual alarm system with a self-contained power supply is provided in lieu of a telemetered system, documentation is provided showing an equivalent level of reliability and public health protection. [RSWF 45] ___ 95. The design requires emergency pumping capability be provided for all stations. For stations discharging through pipes 12 inches or larger, the design requires uninterrupted pumping capability be provided, including an in-place emergency generator. Where portable pumping and/or generating equipment or manual transfer is used, the design includes sufficient storage capacity with an alarm system to allow time for detection of station failure and transportation and connection of emergency equipment. [62-604.400(2)(a)1. and 2., F.A.C., MOPFD-12 #4 Page 209 and RSWF 46.423 and 46.433] ___ 96. The design requires: 1) emergency standby systems to have sufficient capacity to start up and maintain the total rated running capacity of the station, including lighting, ventilation, and other auxiliary equipment necessary for safety and proper operation; 2) special sequencing controls be provided to start pump motors unless the generating equipment has capacity to start all pumps simultaneously with auxiliary equipment operating; 3) a riser from the force main with rapid connection capabilities and appropriate valving be provided for all stations to hook up portable pumps; and 4) all station reliability design features be compatible with the available temporary service power generating and pumping equipment of the authority responsible for operation and maintenance of the collection/transmission system. [62-604.400(2)(a)3., F.A.C. and RSWF 46.431] ___ 97. The design provides for emergency equipment to be protected from operation conditions that would result in damage to the equipment and from damage at the restoration of regular electrical power. [RSWF 46.411, 46.417, and 46.432] ___ 98. For permanently-installed internal combustion engines, underground fuel storage and piping facilities are designed in accordance with applicable state and federal regulations; and the design requires engines to be located above grade with adequate ventilation of fuel vapors and exhaust gases. [RSWF 46.414 and 46.415] ___ 99. For permanently-installed or portable engine-driven pumps are used, the design includes provisions for manual start-up. [RSWF 46.422] ___ 100. Where independent substations are used for emergency power, each separate substation and its associated transmission lines is designed to be capable of starting and operating the pump station at its rated capacity. [RSWF 46.44] Conventional Force Mains, Pump Stations, Gravity Sewers and Manholes ___ 101. For conventional force mains, pump stations, gravity sewers and manholes used after leaving the vacuum/pump station, the project design meets the “General Requirements” and applicable portions of the Collection/Transmission System Design Information beginning on page 2 of DEP Form 62- 604.300(8)(a), Notification/Application for Constructing a Domestic Wastewater Collection/Transmission System. [62-604.300(8)(a), F.A.C.] (RSWF) “Recommended Standards for Wastewater Facilities”; Great Lakes-Upper Mississippi River Board of State Public Health and Environmental Managers; 1997 (Adopted by Rule 62-604, 300(5)(g), F.A.C.). (MOPFD-12) “Alternative Sewer Systems, Manual of Practice No. FD-12”; Water Environment Federation; 2008 (Note, since this is an updated version of manual adopted by Rule 62-604.300(5)(c), F.A.C., use for guidance only). Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX J: Village Public Meetings kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 Memorandum To: Distribution From: Stefano Viola Date: December 12, 2019 Subject: Shores Estates Septic to Sewer Conversion Facilities Plan Public Workshop #1 Miami Shores Village 044448010 On Thursday, December 12, 2019 at 6:00 PM a public workshop was held at 9900 NE 2nd Avenue, Miami Shores Village, FL 33138 for the above referenced project. The following people were in attendance: Scott Davis Miami Shores Village (Village) davis@msvfl.gov Gary Ratay Kimley-Horn and Assoc., Inc. (KHA) gary.ratay@kimley-horn.com Stefano Viola Kimley-Horn and Assoc., Inc. stefano.viola@kimley-horn.com Marissa Maring Kimley-Horn and Assoc., Inc. marissa.maring@kimley-horn.com Mary Maganno Village Resident marymagui3@aol.com Robert Menge Village Resident offshoremarlin@gmail.com Janet Goodman Village Resident janetgoodman@bellsouth.net Carol Eannace Village Resident collaboration1@bellsouth.net Sonia Zepede Village Resident socongo@hotmail.com Meike Espuiora Village Resident lfparolo@hotmail.com Alayna Yeash Village Resident alaynayeash@gmail.com Brett Firestone Village Resident brett@floridacapitalrealty.com Art Salow Village Resident artsalow@yahoo.com Veronique Lestrade Village Resident vlestrade@mac.com Veronique Jean Marie Village Resident N/A Naomi Ayuso Village Resident afayuso@yahoo.com Agustin Ayuso Village Resident afayuso@yahoo.com Alison Sprout Village Resident asprout29@gmail.com Arturo Rodriguez Village Resident arturo954@aol.com Shellace Calhoun Village Resident shellycalhoun1@bellsouth.net The meeting began with an introduction by Scott Davis, Miami Shores Village Director of Public Works. Stefano Viola and Gary Ratay presented on the project and provided a PowerPoint presentation that entailed the following: Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #1 Meeting Minutes December 12, 2019, Page 2 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 • Project Overview • Vulnerability Study Results • Current and Proposed Utility provider • Proposed Septic to Sewer Design • Homeowner Septic Tank Location • Homeowner Septic Tank Location Assistance • Summary/Next Steps The intent of the meeting was to inform the Miami Shores Estate subdivision residents of the upcoming Miami Shores Village Sewer Facilities Plan. The following questions and answers were discussed during the meeting: 1. When would construction start? How much would it cost? RESPONSE: A construction start date has not yet been determined. However, the Feasibility Study is scheduled to be complete in May 2020. The conceptual cost of the overall project will be evaluated in the Feasibility Study. 2. Is the proposed lift station located on the motel property? RESPONSE: The proposed lift station is on the east side of the wall in public right-of- way. 3. Are you going to raise the streets? Will there be drainage improvements? Residents currently have drainage/flooding issues. RESPONSE: If the roadway is raised, there will be drainage improvements using stormwater pipes, swales, catch basins, stormwater pump stations, etc. 4. Will streets be raised two feet? RESPONSE: Should the roadway raising project occur, the roadways may be raised two feet. 5. Are you taking into account stormwater infiltration from the canal? Salinity structure effects due to rising water? Backflow preventers? RESPONSE: This project is solely focused on the septic to sewer conversion. However, elements of the sewer system design will take into account the projected sea level rise. 6. Is there a cost analysis for tying into the force main? RESPONSE: There will be cost analyses performed for three different septic to sewer design alternatives. Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #1 Meeting Minutes December 12, 2019, Page 3 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 7. Cost to raise septic systems two feet? RESPONSE: Raising the septic systems on private property is not part of the Feasibility Study and will not be included as one of the septic to sewer design alternatives. 8. What about an alternate connection to MDWASD pump station on Biscayne Boulevard or NE 6th Avenue? RESPONSE: This alternative will be analyzed in the Feasibility Study. 9. Will this affect the sprinkler system? RESPONSE: No, this project will have no impact on the irrigation system. 10. If the roadway raising project were to occur, will this affect the sewer system design? RESPONSE: The roadway raising project will have no impact on the sewer system design. 11. Will the proposed gravity sewer lines running north-south to 105th street be installed in the roads or alleys? RESPONSE: The proposed gravity sewer lines will be constructed along the centerlines of the roadways (within the public right-of-way). North Miami requires the sewer laterals to be installed within the roadway. 12. Will North Miami charge an additional “out-of-area” fee (Miami Shores Tax) for sewer services, as is done with the water fee charges? RESPONSE: To be determined. 13. Will the damaged water mains be upgraded at the same time? RESPONSE: Per Miami Shores Village, the water mains will be upgraded to current design standards. 14. Should North Miami have a break in their downstream sewer system, how will this impact the Shores Estate sanitary sewer system? RESPONSE: The installation of a check valve will prevent North Miami Shores’ back- ups or breaks from impacting the newly constructed sanitary sewer system. 15. What if we eliminate the stormwater/flooding issues, won’t that eliminate the sewer system problem? Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #1 Meeting Minutes December 12, 2019, Page 4 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 RESPONSE: Sea level rise and groundwater table rise are inevitable in Miami Shores Village; constructing stormwater infrastructure improvements will only prolong the inevitable failure of the septic tanks. 16. How many homes will be affected by the sea level rise? RESPONSE: The Feasibility Study scope does not include this analysis. 17. In case of power outage, what happens to the pump station? RESPONSE: The pump station will be installed with a back-up generator. The pump station, generator, and electrical control panels will be designed above the 100-year flood event. 18. How long will the generator last? RESPONSE: The generator would last the entire power outage, as the City of North Miami would be responsible for re-filling the generator. 19. Will this system require individual pump stations for each resident’s house? RESPONSE: No, one lift station will be required for the project. 20. Are any other neighborhoods being looked at? RESPONSE: All Miami Shores Village neighborhoods have been evaluated in the Vulnerability Study, but only the Shores Estate Subdivision was determined to require the Feasibility Study through grant funding. 21. How will the residents access our driveways if the roadway were to be raised two feet? RESPONSE: There would be a smooth transition between the raised roadways and the driveways; an engineered solution will be incorporated into the design. However, this aspect of the design is not part of the Feasibility Study. 22. Would the Shores Estate Subdivision become a special taxing district if the roads were to be raised? RESPONSE: That is the Village’s intent. 23. Who is paying for the sanitary sewer conversion? REPONSE: The Village (the residents through taxes). Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #1 Meeting Minutes December 12, 2019, Page 5 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 24. Who will be the utility provider? RESPONSE: The City of North Miami. 25. Will a cost be determined for the public system? RESPONSE: Yes, a cost analysis will be provided in the Feasibility Study for three different septic to sewer conversion alternatives. 26. Will other avenues be evaluated to receive grant funding? RESPONSE: Absolutely. 27. Why did the Shores Estate Subdivision receive a grant? RESPONSE: The Village had a Vulnerability Study completed that identified the Shores Estate Subdivision as a high-risk area prone to septic failures due to sea level rise. 28. What else is at risk other than the septic systems? RESPONSE: Separate from the septic system, the Village is also proposing to do a study on how to alleviate flooding and address stormwater management. Village has already installed some stormwater infrastructure (backflow preventers, valves, etc.) to alleviate this issue. 29. Are the valves manual or automatic? RESPONSE: The valves that have already been installed and are automatic. 30. What about stormwater abatement programs? RESPONSE: Both the roadway raising project and the septic to sewer conversion projects would be constructed at the same time (pending available funding). The projects would be paid for through grants and/or Village taxes. 31. Where does the grant come from? RESPONSE: Grant funding can come from the Federal government, the State, the County, or other grant-funding sources. 32. Would the whole Village pay, or just Shores Estate? RESPONSE: Funding would be paid for by the Shores Estates Subdivision residents. 33. Who has the final decision on whether the septic to sewer conversion will occur? Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #1 Meeting Minutes December 12, 2019, Page 6 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 RESPONSE: The final decision will be made by the Village Council. 34. Something has to happen to address this septic issue, correct? RESPONSE: Yes, that is correct. 35. Have you done other projects similar to this? What is the cost of those systems? RESPONSE: Yes, price varies for each project depending on the required design infrastructure. 36. Would the Village pay the difference in the project cost once all grants have been received? RESPONSE: Yes. 37. Why isn’t the cost spread out over everyone’s tax bill? RESPONSE: To be determined by the Village Council. 38. What can we do to help get this funding? Move this project along faster? RESPONSE: Once the Feasibility Study is done, the Village can pursue grant funding. 39. What can we do as residents to help move the project along? RESPONSE: Talk to your Village Council members about how enthusiastic you are about this project. 40. How long will the whole process take? RESPONSE: It could take up to three years to complete the project; from funding, design, permitting, and construction. 41. Will it just be one connection point from each home? Even if there are two structures requiring sanitary sewer service connections per property? RESPONSE: There will be one sanitary sewer service connection per property. 42. How long will the residents have to decommission their septic tank and connect to the sewer system? RESPONSE: The mandated timeline for residents to connect to the sewer system will be determined by the Village. Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #1 Meeting Minutes December 12, 2019, Page 7 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 43. If there are two septic tanks, will that overload the proposed sanitary sewer system? RESPONSE: No, the proposed system will be able to treat/transport the additional flows. 44. Will residents be responsible for decommissioning the septic tanks? RESPONSE: Yes, residents are responsible for abandoning their septic tanks. 45. Will our driveways be impacted by this septic to sewer conversion? RESPONSE: Driveways may be impacted by the septic to sewer conversion. However, the driveways will be restored. 46. How big is the lateral? RESPONSE: To be determined, but 6” lateral pipe is typical for this design. 47. If the septic system is in the back of the house, will the lateral connection go under or around the house? RESPONSE: Around the house. 48. Who is responsible for connecting the sewer system to the house on private property? RESPONSE: The resident is responsible for connecting the sewer system to the house connection. 49. Who does the connection for the residents? RESPONSE: Residents must hire a plumber to connect the lateral to the house connection. 50. What about the impact on trees? RESPONSE: Determined by plumber and resident. 51. How will we know the next meeting is occurring? RESPONSE: An advertisement will be sent out, and residents will be ma de aware of the next meeting through flyers. The above statements and information represent Kimley-Horn and Associates’ understanding of the issues discussed in the above-referenced meeting. If Kimley-Horn and Associates has misrepresented any statements made by any of the attendees, please notify us immediately so that we may revise and redistribute the meeting minutes. If no response is received within five Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #1 Meeting Minutes December 12, 2019, Page 8 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 business days, all of the information contained in this document will be considered true and accurate. Sent via E-Mail December 13, 2019. Copies to all attendees, File K:\FTL_Civil\044 Jobs\044448010-Sewer Facilities Plan\Deliverables\Deliverable #1\5. Minutes of the Public Workshop\12-12-19 Meeting Minutes.docx April 20, 2020 Re: Public Workshop #2 Shores Estate Septic to Sewer Planning Study Dear Miami Shores Resident: The Village has received funding via the DEO to conduct a Septic to Sewer Feasibility Study for the Shores Estate Neighborhood. As such the Village will be conducting the second public workshop to provide an update on the status of the study and to answer questions associated with the study. Due to the current COVID-19 Pandemic the meeting will be virtual and available to the residents via Zoom at the link shown below. The meeting will be led by our Public Works Director (Scott Davis) and our Consultant (Kimley-Horn and Associates, Inc.) We will be conducting the Public Workshop meeting: May 6th at 7:00 p.m. https://kimley-horn.zoom.us/s/95367549857 A virtual meeting will be held to discuss the Shores Estate Septic to Sewer Feasibility Study. If you would like to submit questions prior to the meeting, please feel free to email them to Scott Davis at DavisS@msvfl.gov and they will be addressed during the presentation. Additionally, you will be able to ask questions via messaging in the Zoom platform during the presentation that will be addressed upon completion of the presentation in the order they are received. If you cannot attend the Public Workshop and would still like to voice your opinion you can call my office. You can speak to myself or Maggie in my office. Please do not hesitate to contact us at 305-795-2210 should you have any questions concerning this meeting. Sincerely, Scott W. Davis Public Works Director kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 Memorandum To: Distribution From: Stefano Viola Date: May 7, 2020 Subject: Miami Shores Estates Septic to Sewer Conversion Facilities Plan Public Workshop #2 Virtual Zoom® Meeting Miami Shores Village 044448010 On Wednesday, May 6, 2020 at 7:00 PM a public workshop was held via a virtual Zoom® meeting for the above referenced project. The following people were in attendance on the call: Scott Davis Miami Shores Village (Village) davis@msvfl.gov Tom Benton Miami Shores Village benton@msvfl.gov Gary Ratay Kimley-Horn and Assoc., Inc. (KHA) gary.ratay@kimley-horn.com Stefano Viola Kimley-Horn and Assoc., Inc. stefano.viola@kimley-horn.com Marissa Maring Kimley-Horn and Assoc., Inc. marissa.maring@kimley-horn.com Anthony Brooks Village Resident N/A Brett Firestone Village Resident brett@floridacapitalrealty.com Carol Respondek Village Resident N/A Catherine Salow Village Resident N/A Catie Salow Village Resident N/A Enrique Tome Village Resident N/A Janet Goodman Village Resident janetgoodman@bellsouth.net Jenna Rassif Village Resident N/A Jo Ellen Albert Village Resident N/A Matthew Kolokoff Village Resident N/A Nina Birnbach Village Resident N/A Pablo Village Resident N/A Shellace Calhoun Village Resident shellycalhoun1@bellsouth.net 1 (305) 778-9835 Village Resident N/A 1 (305) 937-8593 Village Resident N/A 1 (513) 578-7171 Village Resident N/A Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #2 Meeting Minutes May 7, 2020, Page 2 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 The meeting began with an introduction by Scott Davis, Miami Shores Village Director of Public Works. Stefano Viola and Gary Ratay presented on the project and provided a PowerPoint presentation that included the following: • Project Overview • Resident Comments from First Public Workshop • Proposed Septic to Sewer Design Solutions • Estimated Design and Construction Costs • Potential Funding Sources • Summary/Next Steps The intent of the meeting was to provide an update regarding the Miami Shores Village Sewer Facilities Plan to the Miami Shores Estate subdivision residents. The following questions and answers were discussed during the meeting: 1. With each option gravity and vacuum has the cost of dewatering been factored into overall cost of construction? Response: The cost of dewatering has been factored into the overall cost of construction for both gravity sewer and vacuum sewer. Vacuum sewer is a shallow system, and most likely wouldn’t require dewatering. 2. When would we be required to hook up to the sewer system? Response: Per Florida Statutes, residents are required to connect to a public sanitary sewer system, if available, within one year. Per City of North Miami Code of Ordinances, residents are required to connect to a public sanitary sewer system, if available, within 90 days. 3. What happens if your septic tank is not located neatly to the side of your house as shown in the example? How will it connect to the sewer in the right of way if it’s not a straight line? Response: The proposed lateral can be connected to the clean out nearest to the resident’s home. The connection does not need to be one straight line from the house to the public system in the right-of-way. 4. Would a vacuum sewer be more feasible? Response: There are pros and cons to both systems. The vacuum sewer would be shallower and require less excavation; however, since the vacuum sewer is pressurized and includes an additional set of pumps, this system would be costlier to install up front and be more expensive to operate and maintain. Vacuum systems are looked at when the Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #2 Meeting Minutes May 7, 2020, Page 3 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 existing elevations would not be feasible for gravity systems. Gravity systems use gravity to allow for the transport of sewage, in lieu of the additional set of pumps. 5. Are the residents to pay to connect to the system? Response: If grant funding is not received for the work to be constructed on private property, it would be the responsibility of the homeowner to pay for the connection from the home to the public system. 6. Is the “do nothing” option under consideration? It seems that “option” would destroy our property values. Response: The “do nothing” option is still under consideration, as the Septic to Sewer Facilities Plan (Facilities Plan) needs to be adopted by the Village Council and funding still needs to be determined. 7. What is the timeline to completion? Response: The draft Septic to Sewer Facilities Plan will be submitted to Florida DEO on May 7, 2020. Once the DEO and the Village review the Facilities Plan and provide comments, the final Facilities Plan will be resubmitted to the DEO at the end of May. The Facilities Plan and the Comprehensive Plan Amendment Changes will be reviewed at the Village Council Meeting in June for hearing. The date of this Village Council June meeting is still to be determined (and subject to change due to COVID-19 Pandemic). Funding applications, design, and construction of the septic to sewer conversion will then take place following the adoption of the Facilities Plan and the Comprehensive Plan Amendment Changes. 8. Is there a minimum elevation of your existing septic tank that would exclude you from connecting? Response: If there is a public sanitary sewer system, there would not be an existing septic tank elevation that would exclude a homeowner from having to connect to the public system. 9. Is there a slide that shows pros and cons of the three options? Response: There is not a slide that shows the pros and cons of the three options; however, the pros and cons of each option is discussed heavily in the Facilities Plan. 10. The cost is stretched out over how many years? Response: This is yet to be determined. If grant or loan funding is received, this will impact the cost timeline to construct the sanitary sewer system. Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #2 Meeting Minutes May 7, 2020, Page 4 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 11. I am assuming either of these plans will require the roads to be repaved? Response: Per the Village’s Code of Ordinances, the roads will be required to be repaved from edge to edge upon complete installation of the utility pipes/trenches. 12. Who will be deciding whether it will be a gravity system or vacuum system? Response: As the utility provider, the City of North Miami will have to approve the proposed sanitary sewer system. 13. Would we have to remove the existing septic tanks after we connect to the sewer system? Response: Homeowners will be required to obtain a Septic Tank Abandonment Permit from the Florida Department of Health (FDOH). The septic tank does not have to physically be removed, but it must be abandoned through legal and approved methods within 90 days of connecting to the public sewer system. 14. What other areas are going through this same process – any other in Miami Shores-Biscayne Park area? Response: The abandonment of septic tanks and the conversion to public sanitary sewer systems has been an ongoing State-wide initiative. The Village is also identifying other neighborhoods that are susceptible to sea level rise to make the septic to sewer conversion. 15. Does the homeowner front the cost upfront? Response: It is not the Village’s intent to have the homeowner front the costs of the public sanitary sewer system construction. However, the homeowner will be required to pay for the connection from the home to the public system in the right-of-way. 16. What happens if there is a hurricane and the Village is without electricity for a long period of time? Response: The pump station will be installed with a back-up generator. The pump station, generator, and electrical control panels will be designed above the 100-year flood event. 17. This will increase property values? Yes? Response: A direct correlation between property value and sanitary sewer system collection has not been determined. However, per the Village, if sea level rise becomes a major problem and a sewer system is available, it will be a major factor in being able to sell a home. 18. What about an on-site treatment plant? Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #2 Meeting Minutes May 7, 2020, Page 5 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 Response: On-site treatment plants still have a drain field that is typically smaller than those of septic tanks; however, the drain field would still be impacted by sea level rise and the rising groundwater table as septic tank drain fields would be. Furthermore, on- site treatment plants require additional electrical/mechanical components that would be an additional cost burden to the homeowners. 19. What are some typical reasons that the plan would not go through? Response: As the utility provider/owner, the City of North Miami must approve the design of the proposed sanitary sewer system. Additionally, available funding could impact whether the design would move forward. 20. Does abandoning a septic system for a community wide sewer result to higher home values in the area? Response: A direct correlation between property value and sanitary sewer system collection has not been determined. However, per the Village, if sea level rise becomes a major problem and a sewer system is available, it will be a major factor in being able to sell a home. 21. How will the installation of the sanitary sewer system affect property value? Response: A direct correlation between property value and sanitary sewer system collection has not been determined. However, per the Village, if sea level rise becomes a major problem and a sewer system is available, it will be a major factor in being able to sell a home. 22. Would construction occur during hurricane season? Response: The construction of a sanitary sewer system of this magnitude would typically take approximately 9 months and could possibly overlap with South Florida’s hurricane season. However, contractors are required to have emergency preparations in place should a hurricane hit South Florida. 23. Is there any history in South Florida of sewers backing up impacting the home owners’ properties? Response: There is a history in South Florida of septic tanks backing up and impacting the home owners’ properties. Regarding gravity sewer systems, design measures and alarms are implemented within each component of the system to prevent sanitary sewer back back-ups. 24. How will Miami Shores Village handle plumbing permitting and costs? Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #2 Meeting Minutes May 7, 2020, Page 6 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 Response: Plumbing permitting and the associated costs will be the responsibility of the homeowner. 25. Cost per month for use? Response: This additional cost per month for public sanitary sewer has yet to be determined. This additional cost per month needs to be coordinated and confirmed with the City of North Miami. 26. North Miami is on board. So funding could be the obstacle. What steps have been taken to secure funding, grants, and are there comparables, in regard to being able to through with the project in other communities in South Florida that have done it? In other words what is the percentage of chance that this change will all work out soon. I am for it. I am probably looking at a new drain field in a year. Response: The State Revolving Fund (SRF) is a viable option that the Village can seek. Of course, grant funding is preferred to lessen the burden of the costs on the Village and the residents. However, the Facilities Plan needs to be finalized and approved before applying for grants and/or loans. 27. What is the estimated cost to connect to the system? Response: The estimated cost for the resident to connect to the system is $10,000 per home. 28. This is a question for Mr. Benton. How will this affect our real estate taxes? Response: As far as real estate taxes go, if your property is appraised higher because you have access to a public sewer system, then your property may be reassessed, and you may see a slight increase in your property tax bill. This impact still needs to be determined. 29. Would we be permitting with North Miami? What about DERM would we need to get a permit from them? Response: Design of the public system will require a permit through FDEP/DERM. The City of North Miami is required to review and approve the design of the public sanitary sewer system. Additionally, coordination is required with MDWASD as the receiving treatment plant. Lastly, septic system abandonment is the responsibility of the homeowner and must be obtained from the FDOH. 30. What about when the residents connect to the public system for permitting? Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #2 Meeting Minutes May 7, 2020, Page 7 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 Response: When the residents connect to the public system, permitting will be required through the City of North Miami. 31. What is the average increase cost per resident per property in similar South Florida regions? I imagine it would be spread out over a number of years. Historically, how much do the grants usually cover per resident property? This is not something new. It has been done in many communities and it is being driven by the need to do it for the environment. Response: Based on historic information, it is an estimate that it would cost the homeowner $20,000 to assist with the construction of the public sanitary sewer system and $10,000 for the resident to abandon the existing septic tank and connect their home to the public sanitary sewer system in the right-of-way. SRF is a payment plan that is spread out over a 20-year payback period, which can be used to fund the public sanitary sewer system. 32. So what are the next steps and what is the overall timeline? Response: The draft Septic to Sewer Facilities Plan is being submitted to Florida DEO on May 7, 2020. Once the DEO and the Village review the Facilities Plan and provide comments, the final Facilities Plan will be resubmitted to the DEO at the end of May. The Facilities Plan and the Comprehensive Plan Amendment Changes will be reviewed at the Village Council Meeting in June for hearing. The date of this Village Council June meeting is still to be determined (and subject to change due to COVID-19 Pandemic). Once the Facilities Plan is adopted, applications for multiple funding sources will begin. The amount of funding received will ultimately be the driver as to when design and construction can begin. 33. Is it a total of $10,000 plus $20,000? Response: Based on historic information, it is an estimate that it would cost the homeowner $20,000 to assist with the construction of the public sanitary sewer system and $10,000 for the resident to abandon the existing septic tank and connect their home to the public sanitary sewer system in the right-of-way. 34. Do you have a website we can visit the timeline and updates on the project? Response: Currently, there is not a website that residents can visit for project timeline and updates. However, the Village can upload the Facilities Plan as public record once it is approved by the Village Council. 35. Approximately how long do you anticipate until the project starts? Response: Project start date is still to be determined, as it relies heavily upon Village Council approval and available funding. Miami Shores Village Shores Estates Neighborhood Septic to Sewer Public Workshop #2 Meeting Minutes May 7, 2020, Page 8 kimley-horn.com 600 North Pine Island Road, Suite 450, Plantation, FL 33324 954 535 5100 36. When is the public hearing or the final decision? Response: It is anticipated that the Facilitates Plan and the Comprehensive Plan Amendment Changes will be on the agenda for the first Village Council meeting in June (subject change due to COVID-19 pandemic). 37. What is the average cost of removing a septic tank? Response: The estimated average cost of removing a septic tank is approximately $10,000. 38. When is the next update to the residents? Response: The public Village Council meeting in June (subject to change due to COVID- 19 pandemic). 39. I thought I saw a reporting that septic systems in our area are expected to fail starting 2023- 24, it seems imperative that this project be approved and funded. Wat happens regarding the viability of our groundwater if the project is not approved or is delayed. Response: There are statistics that show the groundwater/sea level is rising and that septic tanks are likely to fail. As such, the Village is progressing as quickly as possible to move forward with the septic to sewer conversion. The above statements and information represent Kimley-Horn and Associates’ understanding of the issues discussed in the above-referenced meeting. If Kimley-Horn and Associates has misrepresented any statements made by any of the attendees, please notify us immediately so that we may revise and redistribute the meeting minutes. If no response is received within five business days, all of the information contained in this document will be considered true and accurate. Sent via E-Mail May 7, 2020. Copies to all attendees, File https://kimleyhorn.sharepoint.com/sites/FL-FTLFP01-FTL_Civil_01/Shared Documents/FTL_Civil/044 jobs/044448010-Sewer Facilities Plan/Meetings/2nd Public Meeting/2020.05.06_Meeting Minutes.docx Miami Shores Village Shores Estate Septic to Sewer Planning Study May 2020 APPENDIX K: MDWASD Water/Sewer Application Form and Sample Sewer Agreement Water and/or Sewer Development Information Application Form for Water and/or Sewer Blanket/Agreement Instructions: The Property Owner, Authorized Representative, Contractor or Engineer must fill out this form, along with the checklist. All the information must be received prior to the acceptance of this form. Additional information may be required based on the project location and size of the water and sewer facilities to be installed and will require a water and/or sewer agreement. APPLICATIONS WILL NOT BE ACCEPTED IF THE NECESSARY INFORMATION AND SIGNATURES ARE NOT PROVIDED. Project Name: Proposed Project Address: Property Owner’s Name: Type of Entity: Property Owner’s Mailing Address: City, State, Zip: Property Owner’s E-mail Address: Daytime Phone Number(s): (1) (2) UReason for Connection Information (check all/any that apply):U  New Construction  Demolition  Remodeling  Detached Addition  Attached Addition  DERM Notice  Fire Protection Required  First Time Connection  Other UIs this a “green” and/or LEED building?U  Yes No Type of Units to be Constructed (please refer to Exhibit “B” Attached) # of Units and/or Square Feet: Type of Unit: (You may attach an additional list if necessary) Construction Schedule: (# of units completed per calendar year) Proposed GPD: FOLIO #: LOT: BLOCK: SUBDIVISION: UNote:U Any points of connection (POC) information that is provided is general and subject to prevailing rules, regulations, standards and regulatory requirements at the time of request for service. PRINT NAME: TITLE: DAYTIME PHONE #: (if different from above) E-MAIL ADDRESS: (if different from above) SIGNATURE: DATE: For Off icial Use Only Plans Reviewer Approval and Date: Water Requirement:  Agreement  Blanket Sewer Requirement:  Agreement  Blanket Water and/or Sewer Development Information Application Form for Water and/or Sewer Blanket/Agreement Checklist: Please include a check payable to Miami-Dade Water and Sewer Department with the applicable fee: Water and/or Sewer Blanket/Agreement fees: Water Service Area Only (If the Project is in a water service area only) $100.00 Sewer Service Area Only (If the Project is in a sewer service area only) $100.00 Water and Sewer Service Area (If the Project is in a water and sewer service area) $200.00  Entity: UTypeU URequired InformationU Corporation State of Incorporation Partnership Partnership Information Limited Liability Corporation Managing Member  One (1) signed and sealed original boundary survey or tentative plat identified as “boundary survey” of the property, including location sketch (not older than two years).  One (1) copy of site plan and/or tentative plat showing layout of buildings and ro ads.  Proposed plan (or concept) of water and/or sewer connection and layout.  Current property zoning designation (or submitted re-zoning application). UNote:U Zoning must allow proposed development.  Copy of Recorded Warranty Deed (if different owner from PTXA)  Proof of any existing or previously connected structure, and the type or usage/occupancy of said structure.  DERM and/or DOH approval regarding sewage disposal (if available).  One (1) copy of Fire Department requirements (if available). UACKNOWLEDGMENTU: Please be advised that mixed use development (commercial/residential properties) connected to the same meter may not receive the minimum per unit life line discounted rate and will be billed at the Non -Residential rate. Under penalties of perjury, I declare that I have read the foregoing and that the facts stated in it are true, to the best of my knowledge and belief. PRINT NAME TITLE SIGNATURE X DATE Miami-Dade Water and Sewer Department -New Business Section P.O. Box 330316 -Miami, Florida 33233-0316 786.268.5209 P  P 3575 S. LeJeune Road, Room 114 Additionally Water Supply Certification Letter (if the project is only a water service area) $90.00