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HomeMy WebLinkAboutcocc_resolution_no_2019-02_20190319 RESOLUTION NO. 2019-02 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CAPE CANAVERAL, FLORIDA, ADOPTING THE CITY OF CAPE CANAVERAL, FLORIDA WASTEWATER AND STORMWATER FACILITIES PLAN; AUTHORIZING THE SUBMITTAL OF THE PLAN TO THE FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION; PROVIDING FOR THE REPEAL OF PRIOR INCONSISTENT RESOLUTIONS,SEVERABILITY AND AN EFFECTIVE DATE. WHEREAS, the City of Cape Canaveral has consulted with Mead & Hunt, Inc. in the preparation of the City of Cape Canaveral, Florida Wastewater and Stormwater Facilities Plan, dated February 2019 (Plan); and WHEREAS,the City has determined that the projects recommended in the Plan are in the best interests of its citizens; and WHEREAS, in furtherance of the City of Cape Canaveral seeking funding from the Florida Department of Environmental Protection (FDEP) under its State Revolving Fund (SRF) Program to fund improvements for the benefit of its citizens, the City of Cape Canaveral desires to formally adopt the recommendations in the Plan, inclusive of the Capital Financing Plan contained therein; and WHEREAS,the City Council of the City of Cape Canaveral finds this Resolution to be in the best interests of the health, safety and welfare of the citizens of Cape Canaveral. NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Cape Canaveral, Florida: Section 1. Recitals. The foregoing recitals contained in the preamble to this Resolution are incorporated by reference herein. Section 2. Adoption of the City of Cape Canaveral,Florida Wastewater and Stormwater Facilities Plan. The City Council of the City of Cape Canaveral hereby approves and adopts the Plan, prepared by Mead & Hunt, Inc., dated February 2019 ("Plan"), and said Plan is attached hereto as Exhibit "A" and incorporated herein by this reference. The Plan is available for public inspection during regular business hours at Cape Canaveral City Hall. Section 3. Authorization to Submit the Plan to FDEP. The City Council of the City of Cape Canaveral hereby expressly authorizes City staff to submit the Plan to the FDEP. Section 4. Repeal of Prior Inconsistent Resolutions. All resolutions or parts of resolutions in conflict herewith are hereby repealed to the extent of the conflict. Section 5. Severability. If any section,subsection,sentence,clause,phrase,word,or portion of this Resolution is for any reason held invalid or unconstitutional by any court of competent City of Cape Canaveral Resolution No.2019-02 Page 1 of 2 jurisdiction, such portion shall be deemed a separate, distinct and independent provision and such holding shall not affect the validity of the remaining portion hereto. Section 6. Effective Date. This Resolution shall become effective immediately upon adoption by the City Council of the City of Cape Canaveral, Florida. • ADOPTED in a Regular Meeting of the City Council of the City of Cape Canaveral, Florida,this 19th day of March, 2019. , Bob Hoog,Mayor _ ATTEST:" Name For - Against Daniel LeFever, Mike Brown Second Deputy City Clerk Bob Hoog _X___ Wes Morrison Motion Approved as to legal form and sufficiency For the City of Cape Rocky Randels x Canaveral only by: Angela Raymond x Anthony A. Garganese, City Attorney City of Cape Canaveral Resolution No.2019-02 Page 2 of 2 Resolution No. 2019-02 Exhibit "A" CITY OF CAPE CANAVERAL, FLORIDA WASTEWATER AND STORMWATER FACILITIES PLAN (City Seal) CITY OF CAPE CANAVERAL Prepared By: Mead &Hunt 4401 Eastport Parkway Port Orange, Fl. 32127 February 2019 TABLE OF CONTENTS TABLE OF CONTENTS i EXECUTIVE SUMMARY 7 1.0 INTRODUCTION 7 1.1 Background 7 1.2 Purpose 7 1.3 Demographics 7 1.4 Section Contents 9 2.0 SERVICE AREA IMPACTS AND POPULATION PROJECTIONS 10 2.1 Climate 10 2.2 Topography, Hydrology and Hydrogeology 10 2.3 Plant and Animal Communities 11 2.4 Wetlands and Floodplain 13 2.5 Archeological and Historical Sites 15 2.6 Historical Population 17 2.7 Service Area 17 2.7.1 Land Use 17 2.7.2 Population and Flows 20 3.0 EXISTING WASTEWATER AND STORMWATER SYSTEM 22 3.1 Wastewater System 22 3.2 Wastewater Treatment System 25 3.2.1 Preliminary Treatment 25 3.2.2 Secondary Treatment 25 3.2.3 Intermediate Lift Station 26 3.2.4 Secondary Clarifiers 26 3.2.5 RAW/WAS Pumps 26 3.2.6 Tertiary Filtration 26 3.2.7 Disinfection 27 3.2.8 Effluent Wetwell 27 3.2.9 De-chlorination 27 3.2.10 Effluent Pump Station, Reclaimed, and Reject Water Storage Tank 27 3.2.11 Sludge Holding Tank 27 3.2.12 Belt Filter Press 27 3.2.13 Goals and Objectives 28 i 3.3 Stormwater System 28 4.0 ALTERNATIVES ANALYSIS 29 4.1 General 29 4.2 Intermediate Lift Station Improvements 31 4.2.1 Alternative 1— No Action 31 4.2.2 Alternative 2— Install Engine Driven Bypass Pump 31 4.2.3 Alternative 3— Improve Backup Controls System and Redundancy 32 4.2.4 Comparative & Cost Analysis 32 4.3 Influent Structure and Screen Improvements 33 4.3.1 Alternative 1— No Action 33 4.3.2 Alternative 2— Replace with Drum Screen 33 4.3.3 Alternative 3— Replace with Stair Screen 34 4.3.4 Comparative & Cost Analysis 34 4.4 Tertiary Filter Improvements 35 4.4.1 Alternative 1— No Action 35 4.4.2 Alternative 2—Replace Sand Filters with Disk Filters 36 4.4.3 Alternative 3—Rehabilitate Existing Sand Media Filters 36 4.4.4 Comparative & Cost Analysis 37 4.5 Lift Station No. 3 Improvements 37 4.5.1 Alternative 1— No Action 38 4.5.2 Alternative 2— Rehabilitate Existing Lift Station No. 3 38 4.5.3 Alternative 3— Remove and Replace Existing Lift Station No. 3 38 4.5.4 Comparative & Cost Analysis 39 4.6 Lift Station No. 5 Improvements 39 4.6.1 Alternative 1— No Action 39 4.6.2 Alternative 2— Rehabilitate Existing Lift Station 40 4.6.3 Alternative 3—Construct New Lift Station 40 4.6.4 Comparative & Cost Analysis 41 4.7 Lift Station No. 8 Improvements 41 4.7.1 Alternative 1— No Action 42 4.7.2 Alternative 2— Rehabilitate Existing Lift Station No. 8 42 4.7.3 Alternative 3—Total Replacement 43 4.7.4 Comparative & Cost Analysis 44 4.8 WRF SCADA System Improvements 44 4.8.1 Alternative 1— No Action 44 4.8.2 Alternative 2— Replace Entire System with New Software and Controls 44 4.8.3 Alternative 3— Replace Portion and Upgrade Remainder of System 45 ii ii 4.8.4 Comparative & Cost Analysis 45 4.9 Construct Pump and SO2 Buildings 46 4.9.1 Alternative 1— No Action 48 4.9.2 Alternative 2—Construct Concrete Block Site Built Buildings 48 4.9.3 Alternative 3—Construct Prefabricated Aluminum Structures 48 4.9.4 Comparative & Cost Analysis 49 4.10 Lift Station No. 7 Force Main 49 4.10.1 Alternative 1— No Action 49 4.10.2 Alternative 2— Replace Force Main with In-Situ Method 49 4.10.3 Alternative 3— Replace Main with Open-Cut or Trenchless Method 50 4.10.4 Comparative & Cost Analysis 50 4.11 Center Street Stormwater Treatment 51 4.11.1 Alternative 1— No Action 51 4.11.2 Alternative 2—Construct Wet Detention Pond 51 4.11.3 Alternative 3—Construct Underground Storage with Exfiltration 52 4.1.4 Comparative & Cost Analysis 52 4.12 Environmental Impacts and Mitigation 53 5.0 IMPLEMENTATION AND FINANCIAL PLANNING 54 5.1 Implementation Schedule 54 5.2 Permitting Compliance 54 5.3 Public Participation (SECTION NEEDS REVISIONS AFTER COUNCIL MEETING ON 2/19/18) 55 5.4 Capital Finance Plan (SECTION NEEDS REVISIONS AFTER COUNCIL MEETING ON 2/19/18) 55 APPENDICES 56 iii iii EXECUTIVE SUMMARY Mead & Hunt Inc. was contracted by the City of Cape Canaveral (City) to prepare a Wastewater Facilities Plan (Plan) meeting the requirements for the State Revolving Fund (SRF) loan program. The Plan includes necessary information required by the Florida Department of Environmental Protection (FDEP) in support of the SRF loan application. The focus of this Plan is to upgrade aging wastewater collection and treatment system components to maintain and improve the existing wastewater system's ability for treatment and conveyance. Existing Conditions The City is located in northeast Brevard County along the Atlantic coast. The City encompasses an area of approximately 1.9 square miles; 93% of the available land within the City is already developed. The wastewater service area encompasses the entire incorporated limits.The wastewater system consists of a gravity collection system, lift stations, force mains, and a Water Reclamation Facility (WRF). The permitted average daily flow (ADF) capacity of the WRF is 1.8 million gallons per day (MGD). Originally, the WRF was constructed in the late 1960s; since this time, there have been multiple upgrades to the wastewater system. This plant was upgraded in 1995 to allow for the current 1.8 MGD loading and included a 5-stage nutrient removal process upgrade. This allows the City to discharge effluent as public access reclaimed water and discharge into the Banana River. Other improvements in 2005 changed the disinfection used to sodium hypochlorite and increased reclaimed water availability. In 2016,sludge belt press improvements and an additional reclaimed water storage tank were constructed to add redundancy,storage and reduce discharge into the Banana River. In 2018, an emergency oxidation ditch bypass was constructed in the existing equalization tank. Currently, the Canaveral City Park exfiltration system is starting construction to allow excess reclaimed water to be discharged into the underground stormwater chambers to reduce the need to discharge excess reclaimed water to the Banana River. Selected Improvements Nine improvement projects are proposed. Three alternatives for each project were evaluated in the Plan. These include a 'Do Nothing' alternative along with two improvement alternatives. The alternatives were evaluated based on estimated project cost,operation and maintenance factors and reliability.The recommended improvements are as follow: 1. Intermediate Lift Station Improvements —The lift station located at the WRF transfers treatment flow from the anoxic and reaeration basins to the clarifiers. This operation is crucial for the treatment process. The lift system has been subject to failure in the past during/after power outages or interruptions. There is insufficient controls and redundant emergency operation facilities to provide consistent operation. The recommended Mead&Hunt Page 4 improvements include the addition of improved controls and redundancy facilities. The estimated cost of these improvements is $398,250. 2. Influent Screen Improvements — The influent screens are the primary feature of the pretreatment process at the WRF. The existing screens pass excessive solids and require somewhat continual maintenance. This is very labor intensive and costly. The recommended improvements are to replace the existing screen with newer technology drum type screens. These screens have a proven ability to operate more efficiently and effectively. The estimated cost of these improvements is $371,250. 3. Tertiary Filter Improvements — The City's existing tertiary sand type filters require substantial yearly maintenance and frequent rehabilitations. The recommended improvements are to replace the sand filters with newer technology disk type filters. The maintenance costs of this type of filter are substantially less than the sand type filters. The estimated cost of these improvements is $1,147,500. 4. Lift Station No. 3 Improvements—This lift station is located along Central Boulevard and the existing equipment is beyond its useful age due to operation and corrosion. Replacement of the lift station facilities within the existing lift station site is recommended. The estimated cost of these improvements is $357,750. 5. Lift Station No. 5 Replacement— Lift Station No. 5 is located within Treasure Island Club Condominiums. It has aging equipment and needs rehabilitation. The City and the Condominium owners desire to relocate the lift station away from the complex. The estimated cost of these improvements is $553,000. 6. Lift Station No. 8 Improvements — This lift station is located on Thurm Boulevard at Manatee Bay Drive. The station's existing equipment is beyond its useful age due to operation and corrosion. Rehabilitation of the lift station facilities within the existing lift station site is recommended. The estimated cost of these improvements is $425,250. 7. WRF Supervisory Control and Data Acquisition (SCADA) System Improvements — The WRF's current SCADA system is obsolete and does not provide control of certain treatment processes such as chlorine feed, sulfur dioxide feed and other processes. The recommended improvements involve replacing the whole SCADA system with a new system. The improvements would allow the WRF technicians additional and consistent control of the plant processes and possibly allow manned plant operation to be reduced from 16 hours/day operation to 8 hours/day at some time in the future based on FDEP approval. The estimated cost of these improvements is $1,080,000. 8. Construct Pump and Sulfur Dioxide (SO2) Buildings — This project involves the construction of buildings for various pumps within the WRF and to replace the existing SO2 building. The buildings will extend the life of this equipment which is currently subject to environmental degradation. The estimated cost of these improvements is $1,377,000. Mead&Hunt Page 5 9. Lift Station #7 Force Main —This force main which serves Lift Station No. 7 exists along Thurm Boulevard from Central Boulevard to the WRF. The pipe is at the end of its useful life and has been subject to frequent breaks. The estimated cost of these improvements is $378,000. 10. Center Street Stormwater Treatment— This project involves the construction of wet detention pond for the Center Street drainage basin area. The estimated cost of these improvements is $587,250, but only the estimated land acquisition cost of$200,000 will be sought from the SRF program at this time. The total cost of all ten recommended improvements is estimated at $6,675,250. Capital Financing Plan To finance the proposed wastewater system projects, the City proposes to use SRF loan funding and other available funding sources to minimize effects on rate-payers. A Capital Financing Plan has been prepared to pay off the debt from the SRF loan, using the revenues from the wastewater utility system. The Capital Financing Plan was prepared by the City's SRF consultant as a separate effort from this Facilities Plan preparation. Mead&Hunt Page 6 1.0 INTRODUCTION 1.1 Background The City of Cape Canaveral (City) is located in the northeast area of Brevard County along the Atlantic coast. The City encompasses an area of approximately 1.9 square miles with approximately 93%of the available land within the City already developed. See attached Location Map, Figure 1-1. The wastewater service area encompasses the entire incorporated limits of the City. The wastewater system consists of a collection of gravity pipes, lift stations, force mains, and a water reclamation facility (WRF). The permitted average daily flow (ADF) of the WRF is 1.8 million gallons per day (MGD). Location of the WRF is also shown in the Location Map, Figure 1-1. This wastewater system was mostly originally constructed in the late 1960's. The collection system primarily operates as a cascading lift station system, with wastewater flowing by gravity to a pump station where it is pumped/lifted to another gravity collection system until it reaches the WRF. Since the original construction, the WRF has had multiple upgrades. In 1995, the WRF was upgraded and expanded to increase the ADF to 1.8 MGD. In 2005, the facility was upgraded with additional reclaimed water pumps, piping and valving for reject effluent storage and a sodium hypochlorite storage and feed system to replace the use of gaseous chlorine for disinfection. In 2016, 2.5 million gallons of additional reclaimed water storage was added with a second belt filter press. The most recent upgrade occurred in 2018 with the construction of an emergency oxidation ditch bypass. 1.2 Purpose Mead & Hunt contracted with the City to prepare a Wastewater Facilities Plan (Plan). The Plan meets requirements of Chapter 62-503, FAC, for the State Revolving Fund (SRF) Loan Program. This Pan describes the City's existing wastewater system and recommends specific improvements to existing facilities. With redundancy already in place for much of the wastewater system, replacement or rehabilitation of the aging components was the focus. 1.3 Demographics Cape Canaveral is an urban community with an estimated current population of 10,413, projected in the 2010 Census. The median age is approximately 46 years of age. The per capita income is reported at$37,081 compared to the Florida and U.S. average of$27,598 and $29,829 respectively. Mead&Hunt Page 7 Existing City Limits WW Service Area WRF Location Map Figure 1 - 1 CITY OF CAPE CANAVERAL WASTEWATER FACILITIES PLAN 1.4 Section Contents This report is intended to provide the necessary information for the planning documentation found in Chapter 62-503, FAC, required for the SRF loan program. The report is divided into 5 section and includes additional information presented in the appendices. Section 1—Section 1 is an overview of the Plan, including information about the service area and specific projects. Section 2 — Section 2 provides background information including: environmental concerns, archaeological and historical sites, socio-economic impacts, and projected population growth and wastewater flows. Section 3 — Section 3 describes the existing wastewater system. This includes wastewater treatment, transmission, collection and effluent disposal along with flow, usage, and improvement goals. Section 4—Section 4 describes the proposed projects and the alternatives.These projects include Lift Station Rehabs (Intermediate Lift Station, Lift Station Nos. 3 and 8), Lift Station relocation (LS No. 5), Influent screening Replacement, Tertiary Filters, WRF Supervisory Control and Data Acquisition (SCADA) System Improvements, Force Main replacement, and construction of pump and SO2 Buildings. For each project, the alternatives included a discussion of cost estimates and comparative analysis. Section 5 — Section 5 describes the implementation and financial plan for the wastewater and reclaimed improvements and the selected alternative. Information is also provided for the implementation schedule, permitting compliance, public participation,the impact to rate payers, and the financial plan. Mead&Hunt Page 9 2.0 SERVICE AREA IMPACTS AND POPULATION PROJECTIONS 2.1 Climate The rainfall conditions in Cape Canaveral are moderately heavy. The months with the most rain occur during the summer (June through September) while the months with the least rain occur during April and late Fall (November and December). The annual average total participation is 52.5 inches. 2.2 Topography, Hydrology and Hydrogeology Cape Canaveral is primarily located within the Eastern Valley and Atlantic Coastal Ridge physiographic areas with little local relief and dune like ridges and swales parallel to the Atlantic Ocean. Cape Canaveral itself is on the Barrier Islands physiographic region, separated from Brevard County mainland by the Indian River Lagoon (including Banana River) and is bordered on the east by the Atlantic Ocean. Elevations range from 0 ft to 13 ft NAVD 88 within City limits. The Cape Canaveral area is mainly comprised of soils of the Canaveral soil series, of urban land series, and of Palm Beach sand series.The associated series are nearly level or gently sloping and moderately well drained to excessively drained soils. Soil investigation performed by Ardaman & Associates, Inc., in 2013 at the City's WRF, showed that the ground water table is within 3 to 4 feet below the ground surface for most of the months and on seasonal highs, the water table would raise about 1/2 foot above the normal ground water 1 to 4 months of the year. Per this investigation, soils at the WRF consist of fine sand, clays, and coquina of varying densities from approximately 0 to 125 ft below grade. At the south end of Cape Canaveral, the City is a part of the Atlantic Coastal Ridge, which consists of sand ridges and swales. The rest of Cape Canaveral is a part of the Eastern Valley which accounts for lowlands with marsh and wetlands sporadically found within the City. The geologic formation of the Cape Canaveral area consists of the first layer of sand, coquina, and clay. The next formation is the Upper Miocene deposits. Underlain by the Hawthorn Formation. Underlying that, is the Ocala Group which consists of the Crystal River Formation,the Williston Formation, and the Inglis Formation. Below the Ocala group lies the Avon Park Formation. The initial geologic layer to the Hawthorn Formation includes soils which are low in permeability and serve as a confining unit for the Floridan Aquifer. Below the Hawthorn to the Avon Park Formations is the Floridian Aquifer. In the first geologic layer, the layer consists of sand, coquina, and clay or marl, which has an approximate thickness of 0 to 110 ft. The Upper Miocene deposits consist of shell marl, green clay, fine sand, and silty shell. This deposit has the approximately thickness of 20 to 90 feet. The Hawthorn Formation consists of sandy marl, streaks of greenish clay, phosphatic radiolarian clay, black/brown phosphorite, and thinner deposits of sandy limestone. This formation is the confining unit for the Floridan Aquifer. The Ocala Group of formations (Crystal River, Williston, and Inglis) are formed of white coarse limestone which contains coquina to fossiliferous fragments depending on the increasing depth. The Ocala Group formations of Crystal River, Williston and Inglis have an approximate thickness of 0 to 100 ft, 10 to 50 ft, and 70 ft or more, Mead&Hunt Page 10 respectively. The deepest formation is the Avon Park Formation, which is described as chalky limestone. (Water Resources of Brevard County, Florida, Report of Investigations No. 28) According to the U.S. Geological Survey Water Resources of Brevard County, Florida Investigations No. 28, the Atlantic Coastal Ridge forms the thickest part of the surficial (non- artesian) aquifer.The surficial aquifer thins eastward and westward from the crest of the Atlantic Coastal Ridge. Sandy ridges that form a substantial portion of the barrier islands are sources of surficial water for residents and commercial establishments. In Brevard County, the water table of the surficial aquifer ranges in depth from 0 to 22 ft below land surface but occurs generally at depths of less than 10 ft.The top of the Floridan Aquifer is approximately 75 ft below sea level in the northwestern part of Brevard County and more than 300 ft below sea level in the southeastern part (Soil Survey of Brevard County Florida). 2.3 Plant and Animal Communities A list of endangered, threatened, and other species of concern was compiled from the US Fish and Wildlife Service (USFWS)and the Florida Fish and Wildlife Conservation Commission (FFWCC) and are shown in Table 2-1.The status for plants and animal communities listed can be identified as: • Endangered = E • Threatened = T • Candidate = C • Threatened (FFWCC) = ST Mead&Hunt Page 11 Table 2-1 State and Federal Threatened, Endangered, and Candidate Species Common Name Scientific Name Status (State) (Federal) Birds: Audubon's Crested Caracara Polyborus plancus audubonii T T Everglade Snail Kite Rostrhamus sociabils plumbeus E E Florida Scrub-Jay Aphelocoma coerulescens T T Wood Stork Mycteria americana T T Red Knot Calidris canutus rufa T T Piping Plover Charadrius melodus T T Red-cockaded Woodpecker Picoides borealis E E Mammals: Southeastern Beach Mouse Peromyscus polionotus niveiventris T T West Indian (Florida) Manatee Trichechus manatus T T Reptiles: Atlantic Salt Marsh Snake Nerodia clarkia taeniata T T Eastern Indigo Snake Drymarchon corais couperi T T Gopher Tortoise Gopherus polyphemus ST C Green Sea Turtle Chelonia mydas T E Hawksbill Sea Turtle Eretomchelys imbricate E E Leatherback Sea Turtle Dermochelys coriacea E E Loggerhead Sea Turtle Caretta caretta T T American Crocodile Crocodylus acutus T T Plants: Carter's Warea Warea carteri E E Lewton's Polygala Polygala lewtonii E E American Chaffsead Schwalbea americana E E The FFWCC maintains a listing of Bald Eagle nest locations within Florida and the City currently does not have any nests within the city limits. There are no impacts to the plant and animal wildlife expected from the proposed improvements. The proposed work for the collection and transmission of the wastewater system will be completed within State and City-maintained road rights-of-way and already developed land. Improvements for the wastewater treatment system will be conducted on existing sites already developed. Mead&Hunt Page 12 2.4 Wetlands and Floodplain In the City of Cape Canaveral, there are only a few wetland bodies identified by the National Wetland Inventory (NWI). Not accounting for the areas that the NWI states as river lines or Estuarine and Marine Deepwater (Banana River/Atlantic Ocean), the wetlands that are within Cape Canaveral are Palustrine, which are non-flowing wetlands that are small, shallow in depth, and contain vegetation including emergent plants within shallow ponds, marches, swamps, and sloughs. Along the beachside and some areas along the Banana River, there are wetlands that are Palustrine, which are wetlands adjacent to Deepwater tidal areas, which allow ocean/river water to access the wetland. There are no impacts to wetlands expected from the proposed improvements. The proposed work for the collection and transmission of the wastewater system will be completed within State and City-maintained road rights-of-way and already developed land. Improvements for the wastewater treatment system will be conducted on existing sites already developed without wetlands present. As shown in the Flood Zone Map, Figure 2-1, Cape Canaveral is located primarily within Zone X. Along the Atlantic Ocean and Banana River shorelines, the portions of Cape Canaveral are within Zone AE, which represents areas that are subject to inundation by 100-year flooding for which base flood elevations (BFE) have been determined. A small area along the east side of the City adjacent to the Atlantic Ocean is also within Zone AO, which is an area inundated by 100-year flooding (flood depths from 1 to 3 ft) for which average depths have been determined. The existing WRF site is located within Zone X according to the FEMA Flood Insurance Rate Map. (Panel 12009C0363G -July 2018) Mead&Hunt Page 13 GEORGE J KING BLVD SHOREwOOD DR TROPIC BEACH DR CHALLENBER,RD ATLAN rrS RD ZONE AE EAPAR4{ lRF ZONE AE SEAGRAP HIBI CHERIE COWiBLN' 3JRM•BLVD WASHINGTON AVE' CHLIRCH'L COLUMBIA DR DINT RD LEGEND SPECIAL FLOOD HAZARD AREAS SUBJECT TO INUNDATION BY THE PEW'1% ANNUAL CHANCE FLOOD The 1% annual chance flood (100 -year flood), also known as the base flood, is the flood that has a 1% chance of being equaled or exceeded in any given year. The Special Flood Hazard Area is the area subject to flooding by the 1% annual chance flood. Areas of Special Flood Hazard include Zones A, AE, AH, AC, AR, A99, V, and VE. The Base Flood Elevation is the water -surface elevation of the 1% annual chance flood. ZONE A No Base Flood Elevations determined. ZONE AE Base Flood Elevations determined. ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood Elevations determined. ZONE AO ZONE AR ZONE A99 ZONE V ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevations determined. Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain); average depths determined. For areas of alluvial fan flooding, velocities also determined. Special Flood Hazard Area formerly protected from the 1% annual chance flood by a flood control system that was subsequently decertified. Zone AR indicates that the former flood control system is being restored to provide protection from the 1% annual chance or greater flood. Areas to be protected from 1% annual chance flood event by a Federal flood protection system under construction; no Base Flood Elevations determined. Coastal flood zone with velocity hazard (wave action); no Base Flood Elevations determined. FLOODWAY AREAS IN ZONE AE The floodway is the channel of a stream plus any adjacent floodplain areas that must be kept free of encroachment so that the 1% annual chance flood can be carried without substantial increases in flood heights. OTHER FLOOD AREAS ZONE X Areas of 0.2f' annual chance flood; areas of 1°/° annual chance flood with average depths of less than 1 foot or with drainage areas less than 1 square mile; and areas protected by levees from 1% annual chance flood. OTHER AREAS ZONE X Areas determined to be outside the 0-2% annual chance floodplain. ZONE 0 Areas in which flood hazards are undetermined, but possible. ARRdON RIVERSIDE DR ARNO AVE r- !HITCHING POST RD RITCHIE AVE PIERCE AVE. I. K AVE, ZONE VE ZONE VE GR NT AVE ZONE VE ZONE AE CITY OF CAPE CANAVERAL WASTEWATER FACILITIES PLAN FLOOD MAP 1000703-181434.01 07/18/2018 FEMA FLOOD MAP ZONE VE Mead Hunt FIGURE 2-1 2.5 Archeological and Historical Sites There are no known historical sites for the planning area based on the Historic American Buildings Survey (HABS) and Historic American Engineering Record (HAER) collections from the National Park Service (NPS).The Director of the Division of Historical Resources is also the State of Florida's State Historic Preservation Officer (SHPO) serving as liaison with the NPS. Multiple structures to the south of the City of Cape Canaveral have been Identified by SHPO. Based on the data available from the Office of Cultural and Historical Programs (OCHP), five (5) structures were identified as historical or archaeological sites within the existing Cape Canaveral City Limits. Table 2-2 provides a listing of the identified structures. This plan and the proposed projects will have no impact on the archaeological and historical sites identified by the State.The Florida Master Site File produced by the Division of Historical Resources lists nine (9) archeological sites within the planning area. These sites are shown in Figure 2-2. Table 2-3 also provides a listing of the archeological sites within the existing Cape Canaveral City limits. Table 2-2 SHPO Structures within Cape Canaveral City Limits Site Name Address Year Structure Use Built Alma Beecher House 122 Oak Lane 1935 Private Residence 260 Cape Shores Circle 260 Cape Shores Circle 1949 Private Residence 290 Cape Shores Circle 290 Cape Shores Circle 1948 Private Residence 6315 North Atlantic Boulevard 6315 N Atlantic Avenue 1947 Private Residence 6419 North Atlantic Avenue 6419 N Atlantic Avenue 1949 Office Building Table 2-3 DHR Archeological Sites within Cape Canaveral City Limits Site Name Location Site ID Culture AR Fuller Mound A Cape Canaveral BR00090 SJ2, SPN1 AR Fuller Mound A Cape Canaveral BR00091 MAL1 AR Fuller Mound A Cape Canaveral BR00092 MAL1., 5J2 AR Fuller Mound A Cape Canaveral BR00093 MAL2 AR Fuller Mound A Cape Canaveral BR00094 PREH AR Fuller Mound A Cape Canaveral BR00095 UNSP AR Carter Midden Cape Canaveral BR00096 PREH, SJ AR Cabo Verde Cape Canaveral BR01936 SJ AR Odyssey Street Remains Cape Canaveral BR02085 PREH Mead&Hunt Page 15 00 0 500 ArNitlISAT BANANA11 RIVER 1 47` CAPEW FiEgC6R 0 1 inch = 500 feet Tpw 500 Legend c Existing City Limits DHR Archeological Sites NI BR00090 BR00091 BR00092 BR00093 BR00094 BR00095 BR00096 BR01936 BR02085 CITY OF CAPE CANAVERAL WASTEWATER FACILITIES PLAN FLOOD MAP 1000703-181434.01 07/18/2018 1ATLANTIC OCEAN DHR MASTER SITE FILE INVENTORY Mead &Hunt FIGURE 2-2 2.6 Historical Population The City's population was 8,829 in 2000 and increased to 9,912 in 2010 when the City's census data was compared. This population increase of over 1,000 over this period is a 1.2 percent average annual growth rate. Table 2-4 below displays the historical population from the 2017 US Census Bureau estimates from 2010 to 2017. Given that the population estimate has a .66 percent average annual growth rate, the larger 1.2% growth rate will be used as it will give a more conservative estimate for population growth. Table 2-4 Cape Canaveral Historical Population Data Year Population Population Increase Annual Growth Rate (%) 2010 9,946 - - 2011 9,910 -36 -0.36% 2012 9,951 41 .41% 2013 9,970 19 .19% 2014 10,022 52 .52% 2015 10,173 151 1.5% 2016 10,310 137 1.3% 2017 10,413 103 1.0% Average*: .66% 2.7 Service Area 2.7.1 Land Use The City's Wastewater Service area lies within the City's incorporated limit. Using the City's Future Land Use Map, Table 2-5 identifies land use categories of the City's wastewater service area. The City of Cape Canaveral's Future Land Use Map prepared by Miller Legg & Associates is shown in figure 2-3. Mead&Hunt Page 17 Legend Future Land Use MI Ct Commercial C2 Co merraa! -Caw Conservation -Ml industrial PJB REC Public'Recreation Rf Rest/Sento! R2 Residential —R3 Residential Street Legend A Clara Elizabeth Lane B Maple Court D Palm Way D Croton Court E Oleander Court F Coquina Lane O Ca melte Court H Jasmine Court I Honeysuckle Way J Intrepid Way K Aquarius Way L Tranquility Way M Shuttle Way II Falcon Way O Coconut Street City of Cape Canaveral Future Land Use Map Map Prepared by Miller Legg&Aasoclates,Inc. July 01, 2008 CITY OF CAPE CANAVERAL WASTEWATER FACILITIES PLAN FLOOD MAP FUTURE LAND USE MAP Mead&Hunt 1000703-181434.01 FIGURE 2-3 07/18/2018 Table 2-5 City of Cape Canaveral Future Land Use Land Use Category Acres % Residential 736 54 Commercial 404 30 Industrial 130 10 Conservation 42 3 Public/Recreation 47 3 Total 1359 100 Of the different categories, the largest area is dedicated to residential land use (54.2%), followed by commercial land use (29.8%), industrial (9.5%), public/recreation (3.4%), and conservation (3.1%). The residential land use category is divided into three (3) sub categories: R-1 low density residential (6.6%), R-2 median density residential (22.8%), and R-3 high density residential (24.7%) Mead&Hunt Page 19 2.7.2 Population and Flows The source for population projection is the U.S. Census Bureau which has a record of the most recent censuses, in 2000 and 2010. Additionally, the U.S. Census Bureau also provides projected future populations including 2010 to 2017. Using the average annual growth rate of 1.2%, projected populations from 2018 to 2025 were estimated. To calculate the Average Flow per Capita, the Florida Department of Environmental Protection's (FDEP's) Monthly Protection Discharge Monitoring Reports were reviewed. The Annual Average Daily Flow (AADF) values average per year on each of the December monthly reports were reviewed. Using these AADF values and the previous population estimates in Table 2-4, an average historical flow per capita was found to be 113 gallons per day (GPD). These values are shown in Table 2-6. Table 2-6 Historical Average Flow per Capita Annual Average Daily Flow Average Flow per Year Population (capita) (MGD) Capita (Gal/Day) 2010 1.087 9,946 109 2011 1.071 9,910 108 2012 1.096 9,951 110 2013 1.054 9,970 106 2014 1.127 10,022 112 2015 1.173 10,173 115 2016 1.226 10,310 119 2017 1.309 10,413 126 Average 113 Minimum 106 Maximum 126 Using the 113 GPD, projected AADF was calculated by the historical and proposed average flow per capita and population. AADF values are shown in Table 2-7. Mead&Hunt Page 20 Table 2-7 Historical and Projected Average Daily Flows Year Population Average Flow Per Capita Annual Average Daily Flow (GPD) (MGD) 2010 9,912 110 1.087 2011 9,910 108 1.071 2012 9,951 110 1.096 2013 9,970 106 1.054 2014 10,022 112 1.127 2015 10,173 115 1.173 2016 10,310 119 1.226 2017 10,413 126 1.309 2018 10,537 113 1.191 2019 10,663 113 1.205 2020 10,790 113 1.219 2021 10,919 113 1.234 2022 11,050 113 1.249 2023 11,182 113 1.264 2024 11,316 113 1.279 2025 11,451 113 1.294 2026 11,588 113 1.309 2027 11,727 113 1.325 2028 11,867 113 1.341 2029 12,009 113 1.357 2030 12,153 113 1.373 2031 12,298 113 1.390 2032 12,445 113 1.406 2033 12,594 113 1.423 2034 12,745 113 1.440 2035 12,897 113 1.457 2036 13,051 113 1.475 2037 13,207 113 1.492 The projected flows in 2037 are estimated to be 1.492 MGD, which is approximately 82% of the permitted capacity of 1.8 MGD. The estimated AADF in 2034 equates to 80% of the current permitted capacity. Mead&Hunt Page 21 3.0 EXISTING WASTEWATER AND STORMWATER SYSTEM 3.1 Wastewater System The City of Cape Canaveral constructed its original WRF in the 1960's. On July 2, 1990, the Florida Legislature enacted Chapter 90-262 FAC, establishing objectives, including a requirement that all municipal and private wastewater treatment facilities cease discharges to the Indian River Lagoon system. With the legislation and future legislation in mind, the WRF had multiple upgrades. In 1995, the WRF was upgraded with the permitted ADF of 1.8 MGD to a 5-stage biological nutrient removal (BNR) process which provided an effluent that met FDEP criteria for public access reuse of reclaimed water. The WRF is a biological nutrient removal type activated sludge wastewater facility that provides advanced wastewater treatment. The 5-stage system (Bardenpho) consists of two anaerobic basins,two pre-anoxic basins,an oxidation ditch type carrousel aeration basin with an emergency oxidation ditch bypass, two post-anoxic basin and two reaeration basins. Additionally, there are two secondary clarifiers, three tertiary upflow sand filters ('Dyna Sand'), two chlorine contact chambers, a 0.4 million-gallon (MG) flow equalization tank (used for substandard effluent storage), a 1.4 MG dual purpose reject/reclaimed water storage tank, a 1.0 MG reclaimed water storage tank and anther 2.5 MG reclaimed water storage tank. Other connected processes are two in-plant pump stations, chemical feed facilities, a reclaimed pump station, a belt filter process and other associated pumps. An aerial of the WRF is shown in Figure 3-1 and a process flow diagram is shown in Figure 3-2. The collection system consists of approximately 18.75 miles of gravity sewer, 330 manholes, 13 lift stations and force main piping of varying size located throughout the service area. The lift stations throughout the City pump raw wastewater toward the main lift stations, which discharge into the pretreatment structure through two force mains that combine into one manifolded 16- inch ductile iron pipe. Mead&Hunt Page 22 EXISTING OUTFALL LOCATION O FICE 1i GEN! FUEL OPS INTERMEDIATE PUMPING STATION SECOND ANOXIC EFFLUENT PUMP STATION R PUMPS 2.5 MG RECLAIMED WATER EFFLUENT HOLDING PRETREAT STR. SUBSTANDARD EFFLUENT HOLDING FERMENTATION ANOXIC BASINS FILTRATION STORAGE T e SUBSTANDARD EFFLUENT HOLDING 0.4 MG YF44haiaii CITY OF CAPE CANAVERAL WASTEWATER FACILTIES PLAN 1000703-1.81434.01 087142018 WATER RECLAMATION FACILITY AERIAL Mead ilunt FIGURE 3-1 --EFB-J ALUM FACILITIES SYP AL CHLORINATION AL FILTE R A FACILITIES CS L-1— SE POST N RATIO im—m. L SLOWER SPLITTER CLARIFIERA EFA-1 REAERATION SOX (EXISTING CLARIFIER) BLOWER CHLORINATION U CCC A DE-CHLORINATION (FACILITIES FE+ FACILITIES BPF INF-1 OXIDATION f MLSS VCS - FERMENTATION FIRST ANOXIC DITCH SECOND ANOXIC REAERATION i r eito FLW-1 BASIN A BASIN A BASIN A BASIN A _ RAS WAS BYP FALTER CHLORINATION WXT E'l,. I I MLSS MLSS _ FACILITIES OF MECHANICAL MANUAL GRIT FLOW IR IR BAR SCREEN BAR RACK REMOVAL SPLITTER Cpl-SATE IR (EXISTING CLARIFIER) — ` REUSE EFD-1 PUMPS MESS SE CCC B INF / / Y FIE / / FERMENTATION FIRST ANOXIC CLARIFIER t — — BASIN B BASIN B SECOND ANOXIC REAERATION rt INTERRMED ATE A L,. TRANSFER BASIN B BASIN B PUMP STATION PUMPS Sa --- FRILTER C SAMPLE —I.\ / _ LOCATION SCREENINGS GRIT T ` CHLORINE DISPOSAL REMOVAL -Ir IR — RESIDUAL ANALYSER0 TURIN DIAbETER SAMPLE TO THE oRAS I SAMPLE LOCATION BANANA RIVER _ LOCATION OF RAS WAS ,---- . — FLOW 0 PUMPS , PUMPS 1 R LE2 EQUALIZATION C C ffi g cc C) V N r P 5 USE CI FE A rill RECLAIMED WATER TO THE ~ PUMPS z Cw,.UAV ERAL COCOA BREACH Z) SLU DOSE CHLORINATION o E HAULER DRYING BEDS FACDLITIIES t I i i i W G V r DRN i f i I ►I 8 . _ SRY +CF Y r GM SLUDGE r r HAULER DEWATERING 13 DRN I SLUDGE DIIGESTERISLUD GE DIGESTER SUBSTANDARD EFFLUENT EFFLUENT CRN PUMPS HOLDING BLOWERS EFFLUENT REUSE PUMP STATION I-IOLDING STORAGE ON-SITE ON-SI`S POLYMER LEA LS 3 FACLITIES V LEGEND AL ALUM FEED UNE [NF NFLUENT SLS SECONDARYEFFLUENT 3PF BIOLOGICAL PROCESS FEED _R NTERNAL RECYCLE SO2 SULFUR DKDX_DE :M FLTER BACKWASH WATER MLSS IM DCED LIQUOR SUSPENDED SOL_DS SR SUPERNATANT RETURN SYP BYPASS OF OVERFLOW SSE SUBSTAN DARE EFFLUENT i CS CHLORNE SPLS POLYMER DEED WAS WASTE ACTIVATED SLUDGE g LL DRN DRAN Q ACTWATED SLUDGE49 FLOW MET O ,,,, c711 EFF EFFLUENT RET RETURN MOTOR[ISED o c,..4 FE FILTER EFFLUENT EFA-1 EFFLUENT TRANSFER WETWELL iii a EFB-1 AFTER FILTRATION AND PRIOR TO CHLORINATION INF-1 INFLUENT SAMPLING LOCATION FLW-1 Q INFLUENT FLOW METER U EFD-1 RIVER BANK MANHOLE ON DISCHARGE OUTFALL PIPE TTo- ell, EFFLUENT FLOW METER IN LINE TO RIVER OUTFALL Q r 0 a 0 a G TOTAL FLOW TO PUBLIC ACCESS IRRIGATION z W gI w ❑ J SY AAt CITY OF CAPE CANAVERAL i ;t ,, WASTEWATER FACILTIES PLAN Mea d ii_o PROCESS FLOW DIARAM SIIunt Q M, - FIGURE 3-2 CITY of 1000703-181434.01 CAPE CANAVERAL FO° 08/14/2018 3.2 Wastewater Treatment System Wastewater is pumped to the WRF from several master lift stations though two force mains. These two force mains are combined into one manifold 16-inch ductile iron pipe outside the plant, which discharges into the preliminary treatment facilities. 3.2.1 Preliminary Treatment The influent enters the pretreatment (headworks)through a mechanical bar screen on top of the headworks. This screen collects the debris which falls into a dumpster below and taken to a landfill for disposal. A manual bar screen is also provided downstream of the mechanical bar screen. A mechanical vortex type grit removal system to remove sand and grit from the influent is also present. The mechanical bar screen requires cleaning, twice per day. The screens do not experience excessive clogging or buildup of debris against the screen. There are two bypasses with one as the passive overflow upstream of the screen and the other is the removal of the mechanical screen, which will allow the influent to pass through the manual screen. The mechanical screen is in an overall good condition. 3.2.2 Secondary Treatment The second phase of the treatment is through a 5-stage biological nutrient removal process (Bardenpho). This process utilizes fermentation, pre-anoxic mixing, aeration, post-anoxic mixing and reaeration. After the preliminary treatment, the raw wastewater flows to fermentation basins. The fermentation basins are comprised of four sub-basins, each with submersible mixers and baffle walls. The submersible mixers provide adequate agitation to keep the fermentation basin contents completely mixed without the introduction of air into the basin. The fermentation basin was designed for an average hydraulic detention time of 1.87 hours at 1.8 MGD. Return activated sludge from the clarifier is also pumped into the basins. Under anaerobic conditions, the polyphosphate accumulating organism (PAO) converts the polyphosphates in the wastewater and converts the return activated sludge to soluble orthophosphates. The second stage of the secondary treatment process is the pre-anoxic basin. The basins are divided into two separate basins in series, each containing a 7.5 submersible mixer. The pre- anoxic basins receive mixed liquor recycle flow from the aeration basin via internal recycle (IR) pipes (24-inch ductile iron). At the ends of the basins, 30-inch ductile iron pipe coveys the mixed liquor to the next stage. Under anoxic conditions, the micro-organisms reduce the nitrates from the mixed liquor recycle to nitrogen gas which escapes to the atmosphere and carbonaceous biochemical oxygen (CBOD5) is also reduced. The third stage is the aeration basin in a closed-loop carrousel configuration. Most of the 5-day CBOD5 demand is satisfied with the help of the biomass in the mixed liquor and oxygen added by aerators. In the aeration process, organic and ammonia nitrogen is oxidized to nitrates. The biomass of the mixed liquor will also uptake the soluble orthophosphates for subsequent removal in the clarifier. Under aerobic conditions, the PAOs convert the soluble orthophosphates into their intracellular polyphosphate to store energy by performing a luxury uptake, reducing the Mead&Hunt Page 25 soluble phosphate concentration. There are two 75-HP motor driven aerators that deliver air to the basin. At the end of this stage, the flow is either recycled back to the pre-anoxic basin or is discharged to the next process. There appeared to be no visible dead spots in the third stage. The fourth stage is the post-anoxic mixing. The flow enters the anoxic basins, which have three mixers each.The mixers agitate the contents of the basin enough to be completely mixed without the introduction of air. The remaining nitrates in the wastewater are reduced to nitrogen gas in this basin, which escapes the process. These basins appear to be in an overall good condition. The last stage of this 5-stage process is the reaeration basin. There is an air diffusor system to reaerate the mixed liquor suspended solids (MLSS) prior to discharge to the secondary clarifiers. Alum is added to enhance phosphorus removal. With the reaeration process, the process tends to minimize the possibility of denitrification in the clarifier which can lead to a problem with "rising sludge". 3.2.3 Intermediate Lift Station Following the secondary treatment, the mixed liquor flows to the Intermediate Lift Station. The lift station consists of a wet well with five submersible sewage pumps. Flow from the secondary treatment flows to the lift station to be pumped upstream to the clarifiers. The two lead pumps have variable frequency drives(VFDs)while the remaining fixed speed pumps serve as lag pumps. In the past few years there have been at least six instances of substantial spills at the WRF due to the malfunction of the Intermediate Lift Station. The malfunctions typically occurred after a power failure, which lends to the root cause of the malfunctions to be the pump control system which may not effectively be able to start the pumps back up after the power has been restored or switched to the backup generator. 3.2.4 Secondary Clarifiers The mixed liquor is pumped from the Intermediate Lift Station to the secondary clarifiers. The MLSS settles to the bottom of the clarifiers. The clarified effluent flows over weirs at the edge of the clarifier. The settled solids are moved to the center and flow to the Return Activated Sludge and Waste Activated Sludge (RAW/WAS) pump station.There does not appear to be any problem with rising sludge, high sludge blanket or straggler flocs in the clarifiers. 3.2.5 RAW/WAS Pumps The three RAS pumps are used to return the activated sludge back to the Fermentation Basin. The two WAS pumps convey wasted sludge to the sludge holding tank.The WAS pumps are rated at 160 gallons per minute (GPM) at 24 total dynamic head (TDH). The RAS and WAS pumps were in good condition and had minimal signs of corrosion. 3.2.6 Tertiary Filtration Filtration of the flow from the clarifiers occurs by a continuous backwash type sand filter. These are three 10-foot by 15-foot deep beds. The process occurs with the influent entering the sand beds from below, flowing though the sand bed which will remove particles not removed in the clarifiers and will flow over weirs to the effluent flume. The filtered effluent will then flow to the chlorine contact chambers. A small quantity of sand escapes the sand filter during the backwash cycle. During a typical year, a truck load of replacement sand is required due to sand being lost Mead&Hunt Page 26 during backwash operations. Additionally, airlift pumps will also become damaged from filter media abrasion and need a rebuild once every three years. 3.2.7 Disinfection The filtered effluent from the tertiary filtration will then flow to the disinfection process. The disinfection process consists of a dual train chlorine contact chamber with a sodium hypochlorite feed system. The feed system includes two polyethylene tanks and diaphragm metering pumps. 3.2.8 Effluent Wetwell The disinfected effluent will then flow into the effluent wetwell. The wet well contains post- aeration diffusers which are connected to blowers located in the instrumentation building. The post-aeration process increases the dissolved oxygen in the effluent to an acceptable level for discharge into the Banana River. 3.2.9 De-chlorination If the effluent is to be discharged to the Banana River, de-chlorination is required. An 18-inch ductile iron pipe connects the effluent wet well to the Banana River, and de-chlorination is achieved directly in the discharge pipe through a sulfur dioxide feed line. There are two 2,000- gallon storage tanks for the sodium hypochlorite solution. The overall de-chlorination system is in good condition, though there is minor corrosion of some components. 3.2.10 Effluent Pump Station, Reclaimed, and Reject Water Storage Tank Effluent not discharged to the Banana River is transferred to the three reclaimed water ground storage tanks. The pumps have a capacity of 750 GPM at 29 TDH and the three tanks store 2.5 million gallons (MG), 1.0 MG, and 1.4 MG respectively. The transfer pumps were found in good condition with some corrosion around the base of the pump.The 1.4 MG tank can serve as either effluent storage and reject storage. 3.2.11 Sludge Holding Tank At the bottom of the clarifiers, waste sludge is pumped by the WAS pumps to a 170,000-gallon sludge holding tank. A telescopic valve is used to decant the solids in the sludge holding tank and the decanted supernatant is recycled back to the on-site lift stations and pumped to the headworks. 3.2.12 Belt Filter Press Decanted sludge from the sludge holding tank is pumped by two rotary lobe sludge pumps to the belt filter presses for dewatering of the biosolids. The sludge is conditioned with a polymer solution to increase flocculation and allowed to thicken.The sludge is then introduced to the belt filter press gravity section to remove most of the water and is compressed between the belts of the belt filter press. After the removal of a substantial percentage of water, it becomes a sludge cake, which is hauled off-site to the Brevard County landfill. The removed water is returned to the lift stations at the headworks. Mead&Hunt Page 27 3.2.13 Goals and Objectives In the preceding discussion of the WRF, it should be noted that all the critical treatment components have sufficient redundancy to reduce impact of maintenance. The oxidation ditch has just been renovated to provide the needed redundancy and the aeration basin is currently being renovated. With multiple components, there is time to maintain each component or, if a failure occurs, there are redundant systems which would operate while the failed component is repaired. Most of the structures are greater than 50 years old and most of the equipment is greater 30 years old.As such,the need for structural rehabilitation and equipment replacement is driven by useful life expectancy and technology.The City has developed a program to replace deteriorated equipment, improve process reliability and plant performance. This Facilities plan sets forth project descriptions and cost estimates to accomplish these goals and objectives. Additional focus was also upon eliminating the need to discharge excess reclaimed water from the WRT to the Banana River. Canaveral City Park is currently renovating the existing stormwater exfiltration system to allow for excess reclaimed water to be discharged to the exfiltration system. 3.3 Stormwater System Most of the City of Cape Canaveral stormwater system was constructed from the late 1950's through the 1960's.The stormwater system is comprised of approximately 380 storm drains with six miles of stormwater pipe that discharge to six outfall structures. The system carries stormwater discharge from the majority of the 1.9 square miles of drainage area from the Atlantic River to the Banana River routed through 54 inch or larger culverts, and some overland flow to the Atlantic River. The stormwater is discharged to the Banana River at Holman Road, Center Street, International Drive, Central Boulevard, Canaveral Drainage Canal, and the WRF. Minor flow into the Banana River also occurs though non-point and sheet flow from City and private lands along the Banana River. The City's drainage system has been able to minimize flooding within the City, but pollutants contained within the stormwater have mostly been discharged directly into the Banana River. In the 1970's and 1980's, both the Clean Water Act and St Johns River Water Management District (SJRWMD) began addressing water quality issues. The Clean Water Act helped reduce industrial and wastewater discharges while SJRWMD began requiring developments to retain a portion of their stormwater runoff on-site. With the issues with the Indian River Lagoon,there is more focus upon the stormwater pollutant loading that occurs from stormwater. The City's goal is to improve the water quality of the stormwater discharge into the Banana River. Improvements to this discharge will help with loading goals that the Environmental Protection Agency (EPA) has enacted with the National Pollutant Discharge Elimination System Program (NPDES),which is administered by FDEP through the development of a Basin Action Management Plan (BMAP) for the Banana River. Mead&Hunt Page 28 4.0 ALTERNATIVES ANALYSIS 4.1 General Alternatives have been evaluated for each of the previously described projects. An assessment of each and recommendations are included herein. Figure 4-1 displays the map of proposed projects Mead&Hunt Page 29 Scallop or , , fll Cileri ,tve‘..,-.;;0 t) ... 'I. ,a CsE 5 S 0 .C6et Dr 71,3 V. Q, Atlant, Rd ?; : •• •• ••••■••••; = m ,--- port Canaveral challenci., ,,,,I, "... 5 h °Ler A0 Q:edDe r Fir,Re an P°. -a r It Ln Z Clarittopher Columbus Dr e'Ye Cu- ‚0 - -o vn,pc) Q' .,••• • • ...C.iiiii i 11.6.40.0.atiiirst.... i• ....• • =vit. ••,!ii • ••• • r 7 • -"d. "le try -)1, as.* it.. 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Ave I TERTIARY FILTERS, SCADA SYSTEM, PUMP AND SO2 BUILDINGS) : t., - r SI, .„ i , iluicnt:oni:nA: e i : ).,._.,LF., A LIFT STATION #3 I 1 Johnson A''' iit . 11 2.........L. 1."..." 0 S ab al Av ::_t:Iii 74:et a5nAt-77:: 10%1 A LIFT STATION #5 1 n taL Garfield Ave 11 •• LIFT STATION #8 4 3es Cir AveAT Oita A : ve 4 1 CENTER STREET STORMWATER TREATMENT )( f iMcKinley Ave % ri: WilTc:::: ngA Ave e: : e .................. 6 : or 1 uonwg, .AA, c.,.,:: Hendry Ave eade Ave 7.„..7.i. Puistph, 0 calitorni a Ave AnOlorage Ave 0 al; Li1 Seaport Beach Park Ln Harbor Di Coral Ci 1 I AFORCE MAIN #7 Jack Or Kent Dr Fa 0.125 0.25 ATLANTIC OCEAN 0.5 0.75 •Miles CITY OF CAPE CANAVERAL WASTEWATER FACILITIES PLAN 1000703-181434.01 JANUARY 2019 PROPOSED PROJECTS MAP Mead hunt FIGURE 4-1 4.2 Intermediate Lift Station Improvements When the Intermediate Lift Station (Station) operates, the operators do not have confirmation to verify that the Station is activated via the Supervisory Control and Data Acquisition (SCADA) system. During power outages or interruptions, the Station is subject to deactivation, causing conveyance to stop and the station to fill and potentially overflow.The Station is a critical part of the WRF hydraulic profile and flow. Pictured Above -View of Intermediate Lift Station facing north. The location of the Station is shown in Figure 3-1. The Station exists within City WRF property; therefore, no extra land is needed for the improvements. The existing Station includes five pumps,two equipped with VFDs.This improvement goal will be to add redundancy and reliability within the system, so the Station operates consistently when needed and the operations staff can confirm such from the operations center. Three alternatives are identified: Alternative 1- No Action Alternative 2- Install Engine Driven Bypass Pump Alternative 3- Upgrade Existing Controls and Electrical System 4.2.1 Alternative 1- No Action With no action or improvements to the Station, the system will continue to malfunction during power outages and interruptions. With no confirmation the Station activates via the SCADA system, the operators must rely on physical inspections of the Station to verify operations. This verification is costly and ineffective. Cleanup of overflows and potential environmental damage should be avoided. 4.2.2 Alternative 2- Install Engine Driven Bypass Pump This alternative will involve the installation of a new diesel engine driven bypass pump, not connected to the existing control system for the existing pumps.The bypass pump would operate if the existing pumps do not start and upon reaching a high level within the wetwell. The cost of Mead&Hunt Page 31 this project is high as the single bypass pump capacity must be comparable to the current firm capacity of the existing five pumps. The estimated cost for this alternative is $560,250. Table 4-1 Intermediate Lift Station Improvements -Alternative 2 Cost Comparison Engine Driven Bypass Pump Item # Description Qty Unit Unit Price Total 1 Engine Driven Bypass Pump 1 EA $350,000 $350,000 2 Piping, Fittings, Valves 1 LS $35,000 $35,000 3 Installation 1 LS $30,000 $30,000 Subtotal $415,000 Contingency @ 20% $83,000 Engineering, CA and Inspection @ 15% $62,250 Total Estimated Project Cost $560,250 4.2.3 Alternative 3— Improve Backup Controls System and Redundancy This alternative involves upgrading the existing pump control system to have backup controls and additional redundancy. Currently,the primary control panel controls the lead VFD pumps and the three lag fixed speed pumps. When the system restarts after/during a power outage or interruption, the control system is subject to failure so not to start the pumps. To alleviate this problem, the three lag pumps will be connected to a new backup control panel and backup generator.This system will convert the three lag pumps into a backup system that will start when the power is lost to the main pumps or the high-level floats are triggered. These VFD controlled pumps will be powered by the existing facility generator or a new backup generator if the existing generator is found to be insufficient. This project is estimated to cost $398,250. Table 4-2 Intermediate Lift Station Improvements -Alternative 3 Cost Comparison Install VFDs and Backup System Item # Description Qty Unit Unit Price Total 1 VFD 3 EA $25,000 $75,000 2 Backup Generator 1 EA $100,000 $100,000 3 Backup Control Panel 1 EA $60,000 $60,000 4 Electrical/Installation 1 LS $60,000 $60,000 Subtotal $295,000 Contingency @ 20% $59,000 Engineering, CA and Inspection @ 15% $44,250 Total Estimated Project Cost $398,250 4.2.4 Comparative & Cost Analysis With Alternative 1 the system remains the same. This alternative also does not add redundancy or reliability to the Station. The potential for process upsets and wastewater overflows are not reduced. Mead&Hunt Page 32 Alternative 2 would provide redundancy with the installation of an engine driven bypass for the Station. This has a considerable cost due to the need for the large capacity bypass pump. This replacement would lower the possibility of the lift station failing and needing maintenance/inspections, though it would not correct the existing problem with the lift station controls. Alternative 3 replaces a portion of the existing control system and provides further redundancy with the emergency operation capability for the three lag pumps. This alternative has the lower cost and does not involve substantially more equipment for future maintenance. Alternative 3 is recommended. 4.3 Influent Structure and Screen Improvements The existing mechanical bar screen has exceeded its useful life (20 years) and requires replacement. This project is required to replace and update the pretreatment structure. Pictured Above—View of the Pretreatment structure facing south. For the pretreatment and screening, there are three alternatives identified: Alternative 1— No Action Alternative 2— Replace with Drum Screen Alternative 3— Replace with Stair Screen 4.3.1 Alternative 1— No Action With no action or improvements to the pretreatment and the screen, the system will continue to deteriorate. With no improvements, the pretreatment structure would malfunction more often, having a higher maintenance cost. 4.3.2 Alternative 2— Replace with Drum Screen This alternative replaces the existing pretreatment screen with a drum screen. Replacing the existing screen with a drum screen will cost an estimated $371,250. This will also reduce future Mead&Hunt Page 33 maintenance costs due to reduced rags and inorganic materials bypassing the headworks and causing equipment issues further into the treatment process. This drum screen can remove particles greater than 3 millimeters. Table 4-3 Influent Screen Improvements -Alternative 2 Cost Comparison Replace with Drum Screen Item # Description Qty Unit Unit Price Total 1 Demolition 1 LS $25,000 $25,000 2 New Equipment (Parkson) 1 LS $120,000 $120,000 3 Installation 1 LS $100,000 $100,000 4 Walkways and Railings 1 LS $15,000 $15,000 5 Electrical, Instrumentation, and Controls 1 LS $15,000 $15,000 Subtotal $275,000 Contingency @ 20% $55,000 Engineering, CA and Inspection @15% $41,250 Total Estimated Project Cost $371,250 4.3.3 Alternative 3— Replace with Stair Screen This alternative will replace the existing pretreatment screen with a stair screen. Replacing the existing screen with a stair screen will cost an estimated $405,000. This will also reduce future maintenance costs. This stair screen can remove particles greater than 3 millimeters. Table 4-4 Influent Screen Improvements -Alternative 3 Cost Comparison Replace with Stair Screen Item # Description Qty Unit Unit Price Total 1 Demolition 1 LS $25,000 $25,000 2 New Equipment (Vulcan) 1 LS $150,000 $150,000 3 Installation 1 LS $100,000 $100,000 4 Electrical, Instrumentation, and Controls 1 LS $25,000 $25,000 Subtotal $300,000 Contingency @ 20% $60,000 Engineering, CA and Inspection @ 15% $45,000 Total Estimated Project Cost $405,000 4.3.4 Comparative & Cost Analysis With Alternative 1 the system remains the same. This alternative does not improve the aging system and will cause treatment process failures and/or upsets in the future. Alternative 2 would replace the existing bar screen with a drum screen. The maintenance costs for this alternative would be less than Alternative 1 and would provide improved efficiencies and less potential for process failures. Mead&Hunt Page 34 Alternative 3 is to replace the existing bar screen with a stair screen. The benefits with this alternative are approximately equivalent to Alternative 2, but with a higher capital cost. Alternative 2 is recommended. 4.4 Tertiary Filter Improvements Replacement of the existing Tertiary Filters is proposed.This project consists of replacing existing sand media, 'Dyna Sand' filters with cloth media disk filters. The filters were rehabilitated approximately 6 to 7 years ago. Since the rehabilitation, the filter still requires excessive maintenance. During filter backwashes, sand migrates though the air lift system and clogs the draft tubes. Additionally, the filters gradually lose sand requiring annual replenishment of additional sand. This project proposes to improve the existing filter to replace existing, old equipment with new, better technology. Pictured Above —View of'Dyna Sand' filters along the Deck To mitigate the pretreatment and tertiary treatment, there are three alternatives identified: Alternative 1— No Action Alternative 2—Replace Tertiary with Disk Filters Alternative 3—Rehab Existing Dyna Sand 4.4.1 Alternative 1— No Action With no action or improvements to the tertiary filter, the system will continue to malfunction. Yearly addition of sand would also be required. The tertiary filter also requires significant maintenance. Mead&Hunt Page 35 4.4.2 Alternative 2—Replace Sand Filters with Disk Filters This alternative will replace the sand filters with the cloth media disk type filters. The disk filters have limited to no maintenance costs and have a useful life of 20 years. The cost is estimated at $1,147,500. Table 4-5 Tertiary Filter Improvements -Alternative 2 Cost Comparison Replace with Disk Filter Item # Description Qty Unit Unit Price Total 1 Demolition 1 LS $50,000 $50,000 2 New Equipment (Parkson) 1 LS $450,000 $450,000 3 Installation 1 LS $250,000 $250,000 4 Electrical, Instrumentation, and Controls 1 LS $100,000 $100,000 Subtotal $850,000 Contingency @ 20% $170,000 Engineering, CA and Inspection @ 15% $127,500 Total Estimated Project Cost $1,147,500 4.4.3 Alternative 3—Rehabilitate Existing Sand Media Filters This alternative will rehabilitate the existing'Dyna Sand'filters, including replacement of controls and equipment. The sand would need to be replenished every year for a minimal cost and the filter draft tubes would require rehabilitation every 6 or 7 years, at an estimated cost of$300,000 per each draft tube rehabilitation. Assuming a 20-year life, three (3) draft tube rehabilitations would be required. The estimated cost for a 20-year useful life is $1,845,000. Table 4-6 Tertiary Filter Improvements -Alternative 3 Cost Comparison Rehabilitate Sand Filters Item # Description Qty Unit Unit Price Total 1 Rehab Filter By Manufacturer 1 LS $650,000 $650,000 Electrical, Instrumentation, and 2 Controls 1 LS $50,000 $50,000 Subtotal $700,000 Contingency @ 20% $140,000 Engineering, CA and Inspection @ 15% $105,000 Total Estimated Project (initial) Cost $945,000 Including 3 Rehabilitations = $1,845,000 Mead I HUflt Page 36 4.4.4 Comparative & Cost Analysis With Alternative 1 the system remains the same, no major changes occurring. This alternative also does not improve the aging system and will cause treatment process problems. Alternative 2 replaces the sand filters with cloth media disk type filters. This alternative will greatly improve the filter process and reduce the expensive rehabilitation required by the sand type filters. Thus, the overall project life cost would be decreased. Alternative 3 would have a lower initial cost but would have a higher lifetime cost.With an overall lower lifetime cost, Alternative 2 was selected. 4.5 Lift Station No. 3 Improvements Lift Station No. 3 is an existing wastewater lift station located along Central Boulevard, near the intersection with Oak Manor Drive. The existing facilities have reached their useful life due to deterioration and corrosion due to salt air environment and wastewater gases. The facilities have been subject to increased maintenance and operational issues including problems with the pumps seating with the discharge piping. A recent force main replacement project replaced the downstream receiving force main to just downstream of the existing valve vault. No substantial future changes in receiving flows are projected due to the lift station's service area currently being mostly built out. Some redevelopment within the service area is expected, but impact on flow volumes should be minimal. . Pictured Above —View of Lift Station No. 3 on Central Blvd. Three alternatives have been identified for improvements to this lift station: Alternative 1— No Action Alternative 2— Rehabilitate Existing Lift Station Alternative 3— Remove and Replace existing Lift Station. Mead I HUflt Page 37 4.5.1 Alternative 1— No Action With the No Action alternative, no improvements will be made to the facilities. Due to this, maintenance costs are expected to increase the likelihood of a potential failure. A failure of this lift station could cause a wastewater overflow into the adjacent main drainage canal. This could cause considerable environmental damage. The increased maintenance costs and potential environmental damage/cleanup costs cannot be accurately estimated at this time. 4.5.2 Alternative 2— Rehabilitate Existing Lift Station No. 3 This alternative involves the rehabilitation of the existing facilities in the current location including the replacement of the mechanical and electrical equipment. Other existing facilities will be rehabilitated in-place, including protective linings and replacement covers and other appurtenances. These improvements should extend the lift station's useful life for at least 20 years, less potential pump and electrical equipment renewal and replacement that would be needed before. The improvements would reduce required maintenance and reduce the likelihood of potential failure and overflow. The project cost for this alternative is $357,750 as detailed in Table 4-7. Table 4-7 Lift Station No.3 Improvements -Alternative 2 Cost Comparison Rehabilitate Existing Lift Station Item # Description Qty Unit Unit Price Total 1 Demolition/By-Pass Pumping 1 LS $25,000 $25,000 2 Mechanical/Pumps 1 LS $160,000 $160,000 3 Lining and Appurtenances 1 LS $30,000 $30,000 4 Electrical, Instrumentation, and Controls 1 LS $40,000 $40,000 5 Restoration and Site Work 1 LS $10,000 $10,000 Subtotal $265,000 Contingency @ 20% $53,000 Engineering, CA and Inspection @ 15% $39,750 Total Estimated Project Cost $357,750 4.5.3 Alternative 3— Remove and Replace Existing Lift Station No. 3 This alternative involves the complete removal and replacement of the existing facilities in an alternate location. A suitable alternative location is not known to be available at this time. These new improvements would have an estimated useful life of at least 25 years less potential pump and electrical equipment renewal and replacement that would be needed. The improvements would reduce required maintenance and reduce the likelihood of potential failure and overflow. An alternate location more distant from the adjacent canal would also reduce the likelihood of environmental impact by an overflow. The project cost for this alternative is$641,250 as detailed in Table 4-8. Mead I HUflt Page 38 Table 4-8 Lift Station No. 3 Improvements -Alternative 3 Cost Comparison Remove and Replace Existing Lift Station Item # Description QTY Unit Unit Price Total 1 Site Acquisition 1 LS $20,000 $20,000 2 Demolition 1 LS $25,000 $25,000 3 New Wetwell 1 LS $60,000 $60,000 4 Gravity Sewer 1 LS $40,000 $40,000 5 Mechanical/Pumps 1 LS $160,000 $160,000 6 Force Main Connection/Extension 1 LS $70,000 $70,000 7 Electrical, Instrumentation, and Controls 1 LS $40,000 $40,000 8 Restoration and Site Work 1 LS $60,000 $60,000 Subtotal $475,000 Contingency @ 20% $95,000 Engineering, CA and Inspection @ 15% $71,250 Total Estimated Project Cost $641,250 4.5.4 Comparative & Cost Analysis Alternative 1 is not recommended due to the condition of the facilities and the potential for overflow and environmental impact. Alternative 2 provides upgraded facilities at a lower overall project cost with no need to seek an alternative site. Acquisition of an alternate site can be costly and time consuming. Alternative 3 has a higher project cost with only a slightly longer life expectancy. Therefore, Alternative 2 was chosen. 4.6 Lift Station No. 5 Improvements Lift Station No. 5 is an existing wastewater lift station located within the Treasure Island Club Condominiums. The approximate location is shown in Figure 4-1. The existing facilities have reached their useful life due to deterioration due to use and corrosion due to salt air environment and wastewater gases.The facilities have been subject to increased maintenance and operational issues. Additionally, the City and the condominium owners would like to relocate the lift station away from the front of the condominium buildings. A suitable location is available on condominium owned property approximately 150 feet south. No substantial future changes in receiving flows are projected due the lift station's service area currently being mostly built out. Three alternatives have been identified for improvements to this station: Alternative 1— No Action Alternative 2— Rehabilitate Existing Lift Station Alternative 3—Construct New Lift Station 4.6.1 Alternative 1— No Action With the no action alternative, no improvements will be made to the facilities. Due to this, maintenance costs are expected to increase the likelihood of a potential failure. A failure of this lift station could cause a wastewater overflow into the adjacent condominium structures. This Mead I HUflt Page 39 could cause considerable damage and expense. The increased maintenance costs and potential environmental damage/cleanup costs cannot be accurately estimated at this time. 4.6.2 Alternative 2— Rehabilitate Existing Lift Station This alternative involves the rehabilitation of the existing facilities in the current location including the replacement of the mechanical and electrical equipment. Other existing facilities will be rehabilitated in-place, including protective linings and replacement covers and other appurtenances. These improvements should extend the lift station's useful life for at least 20 years, less potential pump and electrical equipment renewal and replacement that would be needed. The improvements would reduce required maintenance and reduce the likelihood of potential failure and overflow. The project cost for this alternative is $438,750 as detailed in Table 4-9. Table 4-9 Lift Station No. 5 Improvements -Alternative 2 Cost Comparison Rehabilitate Existing Lift Station Item # Description QTY Unit Unit Price Total 1 Demolition/By-Pass Pumping 1 LS $55,000 $55,000 2 Mechanical/Pumps 1 LS $160,000 $160,000 3 Lining and Appurtenances 1 LS $30,000 $30,000 4 Electrical, Instrumentation, and Controls 1 LS $40,000 $40,000 5 Restoration and Site Work 1 LS $40,000 $40,000 Subtotal $325,000 Contingency @ 20% $65,000 Engineering, CA and Inspection @ 15% $48,750 Total Estimated Project Cost $438,750 4.6.3 Alternative 3—Construct New Lift Station This alternative involves the complete removal and replacement of the existing facilities in an alternate location 150 feet south. These new improvements would have an estimated useful life of at least 25 years less potential pump and electrical equipment renewal and replacement that would be needed. The improvements would reduce required maintenance and reduce the likelihood of potential failure and overflow. The project cost for this alternative is $553,000 as detailed in Table 4-8. The Engineering, CA and Inspection portion of the cost was estimated at 20% due to the site acquisition and private property potential issues. Mead I HUflt Page 40 Table 4-10 Construct New Lift Station -Alternative 3 Cost Comparison Construct New Lift Station Item # Description QTY Unit Unit Price Total 1 Demolition 1 LS $25,000 $25,000 2 New Wetwell 1 LS $60,000 $60,000 3 Gravity Sewer 1 LS $40,000 $40,000 4 Mechanical/Pumps 1 LS $160,000 $160,000 5 Force Main Connection/Extension 1 LS $10,000 $10,000 6 Electrical, Instrumentation, and Controls 1 LS $40,000 $40,000 7 Restoration and Site Work 1 LS $60,000 $60,000 Subtotal $395,000 Contingency @ 20% $79,000 Engineering, CA and Inspection @ 20% $79,000 Total Estimated Project Cost $553,000 4.6.4 Comparative & Cost Analysis Alternative 1 is not recommended due to the condition of the facilities and the potential for overflow and environmental and residential impact. Alternative 2 provides upgraded facilities at a lower overall project cost but without achieving the goals of the condominium owners and the City for the station relocation. A failure of this lift station near the condominium could cause a wastewater overflow into the adjacent condominium structures. This could cause considerable damage and expense. The increased maintenance costs and potential environmental damage/cleanup costs cannot be accurately estimated at this time. Alternative 3 has a higher initial project cost with a slightly longer life expectancy and relocates the station as desired by the stakeholders. Therefore, Alternative 3 was chosen. 4.7 Lift Station No. 8 Improvements Lift Station No. 8 is an existing wastewater lift station located near the intersection of Thurm Boulevard and Manatee Bay Drive. The existing facilities have reached their useful life due to deterioration and corrosion due to salt air environment and wastewater gases.The facilities have been subject to increased maintenance and operational issues. No substantial future changes in receiving flows are projected due the lift station's service area currently being mostly built out. Some redevelopment within the service area is expected, but impact on flow volumes should be minimal. Mead I HUflt Page 41 Pictured Above—View of Lift Station No. 8 on Thurm Boulevard Three alternatives have been identified for improvements to this station: Alternative 1— No Action Alternative 2— Rehabilitate Existing Lift Station Alternative 3—Total Lift Station Replacement 4.7.1 Alternative 1— No Action With the no action alternative, no improvements will be made to the facilities. Due to this, maintenance costs are expected to increase the likelihood of a potential failure. A failure of this lift station could cause a wastewater overflow into the adjacent residential properties.This could cause considerable damage and expense. The increased maintenance costs and potential environmental damage/cleanup costs cannot be accurately estimated at this time. 4.7.2 Alternative 2— Rehabilitate Existing Lift Station No. 8 This alternative involves the rehabilitation of the existing facilities in the current location including the replacement of the mechanical and electrical equipment. Other existing facilities will be rehabilitated in-place, including protective linings and replacement covers and other appurtenances. These improvements should extend the lift station's useful life for at least 20 years, less potential pump and electrical equipment renewal and replacement that would be needed. The improvements would reduce required maintenance and reduce the likelihood of potential failure and overflow. The project cost for this alternative is $425,250 as detailed in Table 4-11. Mead I HUflt Page 42 Table 4-11 Lift Station No.8 Improvements -Alternative 2 Cost Comparison Rehabilitate Existing Lift Station Item # Description QTY Unit Unit Price Total 1 Demolition/By-Pass Pumping 1 LS $45,000 $45,000 2 Maintenance of Traffic 1 LS $30,000 $30,000 2 Mechanical/Pumps 1 LS $140,000 $140,000 3 Lining and Appurtenances 1 LS $30,000 $30,000 4 Electrical, Instrumentation, and Controls 1 LS $40,000 $40,000 5 Restoration and Site Work 1 LS $30,000 $30,000 Subtotal $315,000 Contingency @ 20% $63,000 Engineering, CA and Inspection @ 15% $47,250 Total Estimated Project Cost $425,250 4.7.3 Alternative 3-Total Replacement This alternative involves the complete removal and replacement of the existing facilities in an alternate location. A suitable alternative location is not known to be available at this time. These new improvements would have an estimated useful life of at least 25 years less potential pump and electrical equipment renewal and replacement that would be needed. The improvements would reduce required maintenance and reduce the likelihood of potential failure and overflow. The project cost for this alternative is $553,500 as detailed in Table 4-2 Table 4-12 Lift Station No. 8 Improvements -Alternative 3 Cost Comparison Remove and Replace Existing Lift Station Item # Description QTY Unit Unit Price Total 1 Site Acquisition 1 LS $20,000 $20,000 2 Demolition 1 LS $20,000 $20,000 3 New Wetwell 1 LS $60,000 $60,000 4 Gravity Sewer 1 LS $30,000 $30,000 5 Mechanical/Pumps 1 LS $140,000 $140,000 6 Force Main Connection/Extension 1 LS $40,000 $40,000 4 Electrical, Instrumentation, and Controls 1 LS $40,000 $40,000 5 Restoration and Site Work 1 LS $60,000 $60,000 Subtotal $410,000 Contingency @ 20% $82,000 Engineering, CA and Inspection @ 15% $61,500 Total Estimated Project Cost $553,500 Mead I HUflt Page 43 4.7.4 Comparative & Cost Analysis Alternative 1 is not recommended due to the condition of the facilities and the potential for overflow and environmental impact. Alternative 2 provides upgraded facilities at a lower overall project cost with no need to seek an alternative site. Acquisition of an alternate site can be costly and time consuming. Alternative 3 has a higher project cost with only a slightly longer life expectancy. Therefore, Alternative 2 was chosen. 4.8 WRF SCADA System Improvements The wastewater treatment plant's SCADA system acquires data and information related to treatment plant operations and allows for automatic and remote control of some of the plant operations. Currently there are no monitoring or control abilities for the chlorine feed, sulfur dioxide feed and other portions of the process. The monitoring and control of these portions of the system are required to be done manually by plant operators during their rounds and/or upon substantial changes in flow. Also, there are portions of the system that do not have adequate data collection and automatic controls which have caused upsets and overflows in the treatment system. Currently, the treatment plant operates on a 16 hours day schedule. To improve the SCADA system, three alternatives were identified: Alternative 1— No Action Alternative 2— Replace Entire System with New Software and Controls Alternative 3— Replace Portion and Upgrade Remainder of System 4.8.1 Alternative 1— No Action With the no action alternative, there would be no changes to the SCADA system. No operational improvements would be realized, and the current operating protocol would go unchanged. 4.8.2 Alternative 2— Replace Entire System with New Software and Controls Alternative 2 involves upgrading the entire system to a VTSCADA human-machine interface (HMI) software platform, including the SCADA equipment at all the lift stations. Most hardware components would need to be replaced. The replacement of the entire system would allow the various equipment to be communicated upon a common platform and provide operational and maintenance efficiencies. The estimated cost for the new system would be $1,080,000. Table 4-13 WRF SCADA System Improvements -Alternative 2 Cost Comparison Replace Entire System with New Software and Controls Item # Description Qty Unit Unit Price Total 1 VTSCADA System Conversion 1 LS $800,000 $800,000 Subtotal $800,000 Contingency @ 20% $160,000 Engineering, CA and Inspection @ 15% $120,000 Total Estimated Project Cost $1,080,000 Mead I HUflt Page 44 4.8.3 Alternative 3— Replace Portion and Upgrade Remainder of System Alternative 3 is a partial replacement/upgrade to VTSCADA HMI. The treatment plant portion of the SCADA system would be completely replaced while the SCADA equipment at the lift stations would remain and only be upgraded. The lift stations currently utilize Data Flow Systems (DFS) SCADA HMI system. VTSCADA and DFS can be programmed to communicate and operate together, thus avoiding the SCADA replacement throughout the collection system. Having two separate software systems would increase the operating and maintenance cost slightly over the life of the equipment. The estimated cost is $418,500. Table 4-14 WRF SCADA System Improvements -Alternative 3 Cost Comparison Replace Portion and Upgrade Remainder of System Item # Description Qty Unit Unit Price Total 1 VTSCADA System Conversion at WRF 1 LS $300,000 $300,000 2 Upgrade DFS System 1 LS $10,000 $10,000 Subtotal $310,000 Contingency @ 20% $62,000 Engineering, CA and Inspection @ 15% $46,500 Total Estimated Project Cost $418,500 4.8.4 Comparative & Cost Analysis With Alternative 1 the system remains the same, no changes occurring.This alternative does not increase the capability and reliability of the SCADA system and does not reduce the operational and maintenance costs. This alternative also does not reduce the likelihood of treatment upsets and overflows. Alternative 2 is a complete overhaul of the entire SCADA system, thus increasing the overall useful life of the system components. This alternative has the highest cost and the highest amount of additional learning and training that would be required. Having the system be fully replaced would allow for the system to be unified and have an overall increase in the capability and control of the system. Alternative 3 replaces the plant's SCADA system while maintaining the existing lift station SCADA system. The current lift station operates utilizing the DFS system. Although the proposed VTSCADA and DFS can communicate and operate together, having two separate software systems would increase the operating and maintenance cost. Alternative 2 was chosen due to the increase in capability and control of the system and the lower operating and maintenance cost. Mead I HUflt Page 45 4.9 Construct Pump and SO2 Buildings Due to the salt water environment the WRF equipment, especially that which is not enclosed within buildings, is subject to extensive corrosion. Currently a number of pumps and the SO2 feed equipment are exposed to the environment due to the lack of adequate enclosures. Therefore, buildings to enclose this equipment and to protect the equipment from the environmental elements are proposed. Figure 4-2 displays the proposed building locations. For the proposed buildings, there are three alternatives identified: Alternative 1— No Action Alternative 2—Construct Concrete Block Site Built Buildings Alternative 3—Construct Prefabricated Aluminum Structures Mead I HUflt Page 46 7.---1, Fr —. fl. - - _ . ,s, ,- _. ,,, ., A I.t:0,,..i. ,ig. ' '-- , . LEGEND - • 3• Ar_ ' PROPOSED BUILDING LOCATION I. • , r - 9F 1 P.. .44. . 14- '-'" , - .. ii• 11.11Mmt. . . 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I- r Ito I ' • ,, - di . , liitt,a.® eft . . 1 ' ' '.,... . - , €-ap• an v- ' -s, . 1 , i-. . \ - - 'at ig - ,_ - , , - +r - - — . 141 11:1 I IC WO ' ''._,ii, ..-K . , -..„ c - Ok , . ..id'4 - -niia VI • _ = if ... —. t • • • .. .1.,.. t it .*._ - - i fir : i QcE 4 'ds CITY OF CAPE CANAVERAL 4 WASTEWATER FACILTIES PLAN Mead : Lic, ,‘,41/4 11 1 Proposed Pump and SO2Building Locations Ilunt ,...,..„...- ..;,,:= ._.::_ta _.-: ` " ' FIGURE 4-2 C Y of 1000703-181434.01 CAPE CANAVERAL 08/14/2018 4.9.1 Alternative 1— No Action With the no action alternative, there would be no changes to the existing components. The exposed equipment will continue to degrade due to exposure and increase the frequency of operational issues, maintenance and equipment replacement. 4.9.2 Alternative 2—Construct Concrete Block Site Built Buildings Alternative 2 proposes to construct buildings to enclose the pump and SO2 equipment. The buildings would require the construction of substantial foundations to support the buildings. This foundation construction would require a certain amount of pipe and/or conduit relocation that may be in conflict with the proposed foundations. The concrete block buildings and foundations would have a long useful life due to the type and durability of construction. The estimated cost of this alternative is $1,377,000. Table 4-15 Construct Pump and 502 Buildings -Alternative 2 Cost Estimate Construct Concrete Block Site Built Buildings Item # Description Qty Unit Unit Price Total 1 CMU Buildings 3400 SF $300 $1,020,000 Subtotal $1,020,000 Contingency @ 20% $204,000 Engineering, CA and Inspection @ 15% $153,000 Total Estimated Project Cost $1,377,000 4.9.3 Alternative 3—Construct Prefabricated Aluminum Structures Alternative 3 proposes enclosures for the pumps and SO2 buildings utilizing prefabricated aluminum structures. These types of structures have lesser foundation requirements and can be erected quicker than site built structures. The life expectancy of these buildings is less than other types of construction. The estimated cost of this alternative is $918,000. Table 4-16 Construct Pump and SO2 Buildings -Alternative 3 Cost Estimate Construct Prefabricated Aluminum Structures Item # Description Qty Unit Unit Price Total 1 Aluminum Buildings 3400 SF $200 $680,000 Subtotal $680,000 Contingency @ 20% $136,000 Engineering, CA and Inspection @ 15% $102,000 Total Estimated Project Cost $918,000 Mead I HUflt Page 48 4.9.4 Comparative & Cost Analysis Alternative 1 was the no action alternative. Without improvements, the system will gradually deteriorate. Alternative 2 proposes buildings built with CMU. The initial cost of CMU is higher than the No Action alternative, although lifetime of the components would be increased. Alternative 3 has proposed buildings that would be built with aluminum and wall paneling. This alternative has the same benefits as Alternative 2, but with a lower life expectancy and cost. Alternative 2 is selected for the longer useful life of the buildings. 4.10 Lift Station No. 7 Force Main The force main conveying flow from Lift Station No. 7 is located along Thurm Boulevard from West Central Boulevard to the WRF. This force main is approximately 30 years old and is at the end of its useful life. The force main has been subject to higher than normal frequency of breaks and the material condition was found questionable during past tie-in and repair operations. To mitigate this problem, there are three alternatives identified: Alternative 1— No Action Alternative 2— Replace Main with In-Situ Method Alternative 3— Replace Main with Open-Cut or Trenchless Method 4.10.1 Alternative 1— No Action With the no action alternative,there would be no improvements made to the existing force main. The likelihood of future pipe failures and potential for wastewater discharges into the adjacent Banana River would increase. 4.10.2 Alternative 2— Replace Force Main with In-Situ Method In Alternative 2, the force main would be replaced in-situ by the pipe bursting method. The existing pipe would be deactivated and utilized as a corridor/conduit to pull a new pipe in its place. The existing pipe would be "bursted" with a cutting head to make room for the new pipe. The new pipe would most likely be a fused HDPE pipe. Connections would have to be made at either end and at any branch connections. By-pass pumping would have to be utilized for the duration of the pipe installation and activation. Mead I HUflt Page 49 Table 4-17 Force Main No. 7 Replacement -Alternative 2 Cost Comparison Replace Force Main with In-Situ Method Item # Description Qty Unit Unit Price Total 1 Pipe Burst 12" 1200 LF $250 $300,000 2 Tie-ins 2 EA $10,000 $20,000 3 Bypass Pumping 1 LS $80,000 $80,000 4 12" Valves 2 EA $10,000 $20,000 Subtotal $420,000 Contingency @ 20% $84,000 Engineering, CA and Inspection @ 15% $63,000 Total Estimated Project Cost $567,000 4.10.3 Alternative 3— Replace Main with Open-Cut or Trenchless Method Alternative 3 would involve the installation of a new 12" diameter force main along the same alignment. Installation would be by typical open-cut and/or trenchless method. The existing force main would remain in service until the new force main is completely installed and ready for activation. By-pass pumping would be minimized or eliminated with this alternative. Tie-ins at both ends and at any branches would be required.The existing force main would be deactivated and abandoned in place. Table 4-18 Force Main No. 7 Replacement -Alternative 3 Cost Comparison Replace Force Main with Open-Cut or Trenchless Method Item # Description Qty Unit Unit Price Total 1 New 12" Pipe 1200 LF $200 $240,000 2 12" Valves 2 EA $10,000 $20,000 3 Tie-Ins 2 EA $10,000 $20,000 Subtotal $280,000 Contingency @ 20% $56,000 Engineering, CA and Inspection @ 15% $42,000 Total Estimated Project Cost $378,000 4.10.4 Comparative & Cost Analysis Alternative 1 is the no action alternative. Without improvements,the force main will continue to be subject to breaks and potential environmental impacts due to wastewater discharge. Alternative 2 proposes to replace the force main with in-situ or pipe bursting methods. The cost of this alternative is the highest. The method does have some risk due to the nature of the method and will involve considerable by-pass pumping. Mead I HUflt Page 50 Alternative 3 proposes to replace the force main with a new force main adjacent to the existing force main. This alternative has a lower cost than Alternative 2 and involves less by-pass pumping. Alternatives 2 and 3 both provide a new force main with equivalent life expectancies. Alternative 3 is selected. 4.11 Center Street Stormwater Treatment Center Drainage Basin contains 154 acres of commercial and residential development. The stormwater discharges though a 54-inch pipe with a single existing baffle box that only remove a small amount of pollutants. To improve stormwater quality, there are three alternatives identified: Alternative 1— No Action Alternative 2—Construct Wet Detention Pond Alternative 3—Construct Underground Stormwater storage 4.11.1 Alternative 1— No Action With the no action alternative, no improvements will be made to the stormwater system. Due to this, no improvements to stormwater quality will be realized. 4.11.2 Alternative 2—Construct Wet Detention Pond This alternative involves the construction of an offline wet detention pond to divert the existing stormwater to, for additional treatment. The wet detention pond would be constructed on land to be acquired along Center St, near Sevilla Ct. This site would require land acquisition, excavation, grading, and will provide approximately an acre-foot of treatment volume. The estimated cost is$587,250. Table 4-19 Center Street Stormwater Treatment -Alternative 2 Cost Comparison Construct Wet Detention Pond Item # Description QTY Unit Unit Price Total 1 Site Acquisition 1 LS $200,000 $200,000 3 Demolition & Excavation 1 LS $80,000 $80,000 4 Stormwater Connection/Extension 1 LS $50,000 $50,000 5 Control Structures 1 LS $45,000 $45,000 6 Restoration and Site Work 1 LS $60,000 $60,000 Subtotal $435,000 Contingency @ 20% $87,000 Engineering, CA and Inspection @ 15% $65,250 Total Estimated Project Cost $587,250 Mead I HUflt Page 51 4.11.3 Alternative 3—Construct Underground Storage with Exfiltration This alternative involves the construction of underground storage for additional treatment. This underground storage will be constructed within the right of way of Center Street along with the existing stormwater discharge pipe. To have a comparable treatment volume to alternative 2, a considerable length of underground storage would be required to be installed along the right of way. Excavation, demolition and maintenance of traffic will be required along affected roadway.The estimated cost is$1,012,500. Table 4-20 Center Street Stormwater Treatment-Alternative 3 Cost Comparison Construct Underground Stora;e with Exfiltration Item # Description QTY Unit Unit Price Total 1 Demolition & Excavation 1 LS $100,000 $100,000 3 Underground Storage System 1 LS $450,000 $450,000 4 Stormwater Connection/Extension 1 LS $50,000 $50,000 5 Maintenance of Traffic 1 LS $50,000 $50,000 6 Restoration and Site Work 1 LS $100,000 $100,000 Subtotal $750,000 Contingency @ 20% $150,000 Engineering, CA and Inspection @ 15% $112,500 Total Estimated Project Cost $1,012,500 4.1.4 Comparative & Cost Analysis With Alternative 1, the system remains the same. This alternative does not improve the stormwater quality, which will constantly deliver pollutant loaded stormwater to the Banana River. Alternative 2 would construct a wet detention pond to treat the stormwater. With this option, the stormwater would get stormwater treatment, lowering the overall pollutant loading of the stormwater to the Banana River. The downsides of this alternative are that there is a moderate cost due to the land acquisition and construction of the detention pond. Alternative 3 would construct an underground storage system with exfiltration.The underground storage would be constructed within the existing stormwater system's right of way. This method would give similar treatment to alternative 2 but would allow the land to be utilized and developed, not only used for stormwater treatment. Additionally, as this is within the City's right of way, there would be no land acquisition required. The downsides of this alternative are the high costs. Although there is no land acquisition, the construction within the right of ways of existing stormwater pipe increases the price through the excavation, maintenance of traffic, and site restoration that would occur. In addition, to get a comparable treatment volume within the right of way, a large section of the right of way will be excavated. As Alternative 3 has similar treatment volume but with a higher cost, Alternative 2 was chosen. For this chosen alternative, Mead I HUflt Page 52 only the land acquisition will be factored within this facilities plan, so the estimate for this project is $200,000. 4.12 Environmental Impacts and Mitigation None of the recommended improvement alternatives involve any estimated environmental impacts for the construction of the improvements. Therefore, no mitigation for such would be required. The construction activities will be governed by local jurisdictional, State and Federal requirements for construction activity erosion and sediment control. The construction contracts will require the contractors to have a plan in place for the control of erosion and sediments. The contracts will also require plans for the prevention of wastewater discharge and the proper disposal of all wastewater and system contents. Mead I HUflt Page 53 5.0 IMPLEMENTATION AND FINANCIAL PLANNING 5.1 Implementation Schedule At this time the City intends to pursue the projects individually or in multiple groups. Therefore, the following estimated implementation schedule was developed to represent the span between the earliest individual project start and the latest individual project completion. It is expected all projects will be completed prior to September 2021 The estimated timeline of implementation is provided in Table 5-1. Table 5-1 Project Implementation Schedule Activity Estimated Dates Start Design on First Project 3/19 Start Design on Remainder of Projects Various dates in 2019 Finish Design on Last Project 3/20 Permitting of All Projects, Complete 5/20 Bidding of First Project 7/19 Construction Start, First Project 9/19 Construction End, Last Project 9/21 5.2 Permitting Compliance The wastewater system improvements will be designed, constructed, and operated in accordance with Federal, State, and local regulations.The following list identifies the anticipated permits and approvals required for the City wastewater system improvements, construction, and operation. State of Florida • Domestic Wastewater Facilities Permit Application — FDEP • Domestic Wastewater Collection/Transmission System Permit Application — FDEP City of Cape Canaveral • Building Permit(s) The City will acquire these permits prior to bidding the construction contracts. Additional permitting may be required for the construction based on the contractor's means and methods. These may include a NPDES Construction Activities Permit from FDEP and/or a Mead I HUflt Page 54 Dewatering Permit from St. Johns River Water Management District. The construction contract(s) will require the contractor(s) to acquire these permits. 5.3 Public Participation (SECTION NEEDS REVISIONS AFTER COUNCIL MEETING ON 2/19/18) A public hearing will be held with the City Council on February 19, 2019. A notice of the public hearing was published per the City noticing requirements in the local paper prior to the meeting. A copy of the notice is provided in Appendix_.A summary of the comments received at the public hearing is also provided in Appendix_. This planning document was adopted by the City at the _ Council meeting by Resolution _. A copy of the Resolution is provided in the Appendix. 5.4 Capital Finance Plan (SECTION NEEDS REVISIONS AFTER COUNCIL MEETING ON 2/19/18) The City is responsible for financing its wastewater system improvements and plans to use SRF loan funding and any other available outside funding sources to minimize the financial impact of the overall combined projects on the rate-payers. The pledged revenues supporting this debt issue will be the gross revenues derived yearly from the wastewater and stormwater utilities. A copy of the Capital Financing Plan worksheet (Form WW-2b) for an SRF loan to help finance the plan is provided in the Appendix. The City has sufficient funds to repay this SRF Loan with no additional rate adjustments other than those already in place. Mead I HUflt Page 55 APPENDICES Mead I lunt Page 56