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MIAMI VALLEY REGIONAL PLANNING COMMISSION SANITARY SEWER FEASIBILITY STUDY FINAL REPORT 2015 the Village of Ludlow Falls

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MIAMI VALLEY REGIONAL PLANNING COMMISSION SANITARY SEWER FEASIBILITY STUDY FINAL REPORT 2015 the Village of Ludlow Falls MIAMI VALLEY REGIONAL PLANNING COMMISSION SANITARY SEWER FEASIBILITY STUDY FINAL REPORT 2015 Prepared for: The Village of Ludlow Falls 99 Walnut Street Ludlow Falls, OH 45339 Prepared By: IBI Group, Inc. 635 Brooksedge Blvd. Westerville, Ohio 43081 614-818-4900 Fax 614-818-4901 TABLE OF CONTENTS Page Chapter 1 Executive Summary 7 Purpose of Study 7 Alternatives Considered 7 Conclusion 7 Recommendation 8 Chapter 2 Introduction 11 Background 11 Objective 11 Planning Area 11 Scope of Study 11 Methodology 12 Chapter 3 Existing Conditions 14 Existing Water Systems 14 Existing Wastewater Systems 15 Environmental Conditions 15 Soils 15 Topography 16 Surface Water 16 Wetlands 16 Flood Hazard Area 16 Land Use 16 Chapter 4 Future Conditions 26 Development 26 Population Trends 26 Chapter 5 Wastewater system alternatives 28 Collection System Alternatives 28 Gravity Sewer 28 STEP Sewer System 30 Grinder Pump Sewer System 32 Vacuum Sewer System 34 Treatment System Alternatives 35 New Mechanical Treatment Plant Extended Aeration 36 Facultative Lagoon System 38 Packed Bed Media 40 Regionalize with Adjacent Community Transport Wastewater to West Milton 42 Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 1 TABLE OF CONTENTS CONTINUED Chapter 6 Other Cost 54 Contingency 54 Non-construction Costs 54 Operation, Maintenance, and Repair 55 Chapter 7 Selected Plan 58 Summary 58 Conclusion 60 Recommendation 60 Chapter 8 Funding 61 Federal Funding 61 State Funding 61 Chapter 9 Arrangement for Implementation 65 Institutional Responsibilities 65 Implementation Steps 65 Operation, Maintenance, and Monitoring 66 Chapter 10 Summary of Environmental Considerations 67 Future Environment without Project 67 Environmental Evaluation of Alternatives and Selected Plan 67 Public Health 68 Environmental Aesthetics 68 Historical and Cultural 68 Noise and Odor 68 Selected Plan Environmental Impacts 68 Mitigation Measures 69 Erosion/Dust Control 69 Archaeological/Historical Preservation 69 Vegetation 69 Noise Control Practices 69 Odor Control Practices 69 Appendix 70 Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 2 LIST OF FIGURES Figure 2-1: Planning Area Figure 3-1: Existing Water System Figure 3-2: Area Soils Figure 3-3: Area Bedrock - North Figure 3-4: Area Bedrock - South Figure 3-5: Wetlands Figure 3-6: 100 Year Flood - North Figure 3-7: 100 Year Flood - South Figure 3-8: Land Use Map Figure 5-1: Conventional Gravity Sewer Connection Figure 5-2: Gravity Sewer Layout Figure 5-3: Conventional STEP Sewer Connection Figure 5-4: Conventional Grinder sewer Connection Figure 5-5: STEP/Grinder Sewer Layout Figure 5-6: Conventional Vacuum Sewer Connection Figure 5-7: Vacuum Sewer Layout Figure 5-8: Extended Aeration Treatment Process Figure 5-9: Packed Bed Media Treatment System Layout Figure 5-10: Force Main to West Milton Figure 5-11: Possible WWTP Location Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 3 LIST OF TABLES Table1-1: Funding Summary Table 1-2: Monthly Debt Payment Table 1-3: Typical Monthly Sewer Payment Table 3-1: Water Usage Table 3-2: Monthly Water Rates Table 3-3: Existing Land Use Table 4-1: Population Trends Table 4-2: Projected Population Table 4-3: Design Flow Table 5-1: Gravity Sewer Cost Analysis Table 5-2: STEP Sewer Cost Analysis Table 5-3: Grinder Pump Sewer Cost Analysis Table 5-4: Vacuum Sewer Cost Analysts Table 5-5: Design Effluent Table 5-6: Extended Aeration Treatment Cost Analysis Table 5-7: Lagoon Treatment System Cost Analysis Table 5-8: Packed Bed Media Treatment System Cost Analysts Table 5-9: Transport to West Milton Cost Analysts Table 6-1: Collection Systems O,M&R Costs Table 6-2: Treatment Systems O,M&R Costs Table 7-1: Alternate Area Cost Analysis Table 8-1: Funding Summary Table 8-2: Monthly Debt Payment Table 8-3: Typical Monthly Sewer Payment Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 4 APPENDIX Public Involvement Summary Steering Committee Meeting Agenda #1 December 4, 2014 Steering Committee Meeting Minutes #1 December 4, 2014 Steering Committee Meeting Agenda #2 February 5, 2015 Steering Committee Meeting Minutes #2 February 5, 2015 Steering Committee Meeting Agenda #3 April 16, 2015 Steering Committee Meeting Minutes #3 April 16, 2015 Public Meeting Handout Public Meeting Minutes May 5, 2015 Miami County Health District Complied Sewer Data Press Releases Environmental Overview Water/Sewer Consumption 2011-2014 Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 5 ABBREVIATIONS EPA Environmental Protection Agency GPD Gallons Per Day STEP Septic Tank Effluent Pump Mg/L Milligrams Per Liter MGD Million Gallons Per Day BOD Biochemical Oxygen Demand CBOD5 Five Day Carbonaceous Biochemical Oxygen Demand MVRPC Miami Valley Regional Planning Commission D.O. Dissolved Oxygen WWTP Wastewater Treatment Plant R/D Recirculation/Dilution FPA Facility Planning Area O,M&R Operation, Maintenance, and Repair Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 6 Chapter 1 - Executive Summary Purpose of Study The purpose of this study is to identify, evaluate, and present information pertaining to the existing and future wastewater system within the Village of Ludlow Falls. This study will also gain a sense of the potential growth expected in the area, and present options of different wastewater collection and treatment systems. In addition, the study develops cost-effective alternatives for wastewater service in the area. This study will be used by the Miami Valley Regional Planning Commission (MVRPC) and the Village of Ludlow Falls for the purpose of future planning needs. The Village of Ludlow Falls was selected for this study because of the inability to stay within the health regulations when replacing failing septic tanks. Alternatives Considered The existing and future wastewater needs were analyzed to help determine different collection and treatment options. These options include: Wastewater Collection System Alternatives considered the following: Gravity Sewer System Septic Tank Effluent Pumping (STEP) System Grinder Pump Sewer System Vacuum Sewer System Wastewater Treatment System Alternatives considered the following: Construct new Wastewater Treatment Plant (WWTP) o Extended Aeration o Lagoon o Packed Bed Media Filter Regionalize with Adjacent Community o Transport Wastewater to West Milton Conclusion All of the different collection and treatment alternatives, listed above, were analyzed into many different scenarios. Each scenario looked at the cost of the project, O,M&R, and different environmental factors. All of these factors helped determine a best case scenario for the Village of Ludlow Falls. Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 7 Recommendation Based on the cost analysis, the best option for the Village of Ludlow Falls is to construct a gravity collection system and contract with the Village of West Milton for treatment services assuming West Milton will cover the cost of construction of a pumping station and forcemain from Ludlow Falls to West Milton. The initial capital cost of a gravity collection system is higher than other collection systems, but the annual Operation, Maintenance, and Replacement costs are significantly lower and when a Present Worth analysis is run, these differences become apparent. Construction of a gravity sewer will also require sewers to be deeper than the other collection systems requiring rock excavation. Rock excavation has been accounted for in the construction estimate. Construction will be slower and cause more disruption, but is temporary and with a responsible contractor, the residents should be able to manage through the construction process, especially considering that a good majority of the sewer lines could be located in alleyways and away from the streets. Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 8 Table1-1: Funding Summary In order to fund the project, the following plan is proposed: GRAVITY SEWER WEST MILTON TREATMENT CUSTOMERS/EDUs 100 PROJECT COST- Collection System $1,472,510 ANNUAL O,M&R $0 FINANCING CDBG Formula Grant $30,000 Residential Public Infrastructure Grant $480,000 OPWC Grant $400,000 Unsewered Area Assistance Program $250,000 Local Funds - Capacity Fee $1,500/EDU $150,000 OPWC Loan 30 0.00% $162,510 OWDA Loan 30 2.00% $- OEPA WPCLF Loan 30 0.00% $- Total Financing $1,472,510 ANNUAL DEBT Annual OPWC Payment $5,417 Annual OWDA Payment $- Annual OEPA WPCLF Payment $- ANNUAL DEBT PAYMENT $5,417 DEBT PAYMENT PER MONTH PER EDU $4.51 O,M&R PAYMENT PER MONTH PER EDU $- TOTAL PER MONTH PER EDU (not including treatment charges) $4.51 The above table shows a realistic funding plan for the construction of a gravity collection sewer system. Under this scenario, the majority of the project cost would be covered under grant programs with a much smaller portion through loan. The bottom line in this table indicates the amount of debt payment for each customer. This debt payment will be in addition to the standard monthly billing to the Village of West Milton. West Milton recently enacted a 30% surcharge on out of town customers. With this surcharge, the rate to Ludlow Falls would be as shown in the following table: Table1-2: Monthly Debt Payment Operation Consumption Charge Charge (per 1,000 Gallons) $8.79 $9.14 Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 9 Each resident can calculate what their typical sewer bill would be based on their current water bill. For simplicity, the table below is provided based on a monthly water usage between 2,000 gallons per month to 6,000 gallons per month. Table1-3: Typical Monthly Sewer Payment Water Operation Consumption Debt Total Usage Charge Charge Payment Monthly Bill (gal/month) 2,000 $8.79 $18.28 $4.51 $31.58 3,000 $8.79 $27.42 $4.51 $40.72 4,000 $8.79 $36.56 $4.51 $49.86 5,000 $8.79 $45.70 $4.51 $59.00 6,000 $8.79 $54.84 $4.51 $68.14 Village of Ludlow Falls Sewer Feasibility Study IBI Group Page 10 Chapter 2 - Introduction Background In accordance with the Water Pollution Control Act amendments of 1972, the Miami Valley Regional Planning Commission (MVRPC) serves as the Designated Water Quality Planning Agency for the 5-county Miami Valley Region.
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