[D]_Technical_Manual_for_Water,_Wastewater_and_Reclaimed_Water_Utilities.pdf

TECHNICAL MANUAL

FOR

WATER, WASTEWATER AND

RECLAIMED WATER UTILITIES

March 2021

TABLE OF CONTENTS

PREFACE

SECTION 1: PROJECT REVIEW AND ACCEPTANCE PROCESS

SECTION 2: PREPARATION OF MASTER PLANS, CONSTRUCTION PLANS, AND RECORD

DRAWINGS

SECTION 3: SPECIFICATIONS FOR DRINKING WATER DISTRIBUTION SYSTEMS DESIGN

SECTION 4: SPECIFICATIONS FOR WASTEWATER COLLECTION / TRANSMISSION

SYSTEMS DESIGN

SECTION 5: SPECIFICATIONS FOR RECLAIMED WATER SYSTEMS DESIGN

APPENDICES

Appendix A. Overview of Land Development Approval Process

Appendix B. Project Site Plan Submittal Checklist

Appendix C. Standard Details

Appendix D. Asset Data Spreadsheets

Appendix E. Application for Engineering Plan Review Section D

Appendix F. Construction Technical Specifications

PREFACE

This Technical Manual establishes standards for engineering design and construction of potable water, wastewater, and reclaimed water within the City of Plant City (City) limits and also provides minimum engineering standards for the facilities serving areas within the City limits. These standards do not relieve the Engineer to do his/her due diligence to check the applicability of the minimum standards for the specific project. Where a Developer executes an annexation agreement these Standards shall apply to the site where development is to occur. If the Standards set forth in this Manual conflict with Local, State, or Federal regulations, the regulation of the governing jurisdiction shall govern. Any City codes and/or ordinances, or other duly adopted regulations, which contain standards which are more stringent than the minimum standards adopted herein shall govern. The provisions contained in this Technical Manual shall apply to all work performed in public rights of way within the City, all work performed pursuant to an annexation agreement, and all work performed on City owned facilities regardless of their location.

SECTION 1: PROJECT REVIEW AND ACCEPTANCE

PROCESS

1.1 Introduction

This technical manual has been prepared as a guide for the design and construction of water, wastewater, and reclaimed water system extensions to Plant City (City) utilities. The specifications, standards, drawings, and other information included herein are intended as MINIMUM requirements acceptable for a City facility.

While this manual has been developed as a guideline for private enterprise (Developers) the requirements listed herein covering the design, construction, and acceptance criteria for projects are applicable for any project which is to be owned and maintained by the City of Plant City. The Water, Wastewater, and Reclaimed Water Utilities Construction Technical Specifications shall provide additional clarification regarding design details, materials of construction, installation and acceptance requirements.

As a general rule, the City owns and maintains all the water, wastewater, and reclaimed water system within the public right-of-way and in the City owned easements. Therefore, plans for these systems must be reviewed and approved by the City. In addition, utilities that are constructed on private property that are connecting to the City’s systems shall be required to be built to the City’s standards are also subject to review, inspection, and approval by the City.

1.2 Project Review Process – Developer Installed Projects

1.2.1 General

This section lists chronologically the steps that the City follows when reviewing a Developer-installed project. A Developer-installed project is defined as any project in which a private entity designs and constructs water, wastewater, and/or reclaimed water systems which will be owned, operated, and maintained by the City.

Design plans for new developer installed projects must be submitted to the Planning and Zoning Division for distribution to various departments for review and approval. All water, wastewater, and reclaimed water plans must be signed and sealed by an Engineer registered in the State of Florida. Since each project may have conditions which are project specific, there may be additional requirements not listed in this section.

The City reserves the right to establish additional criteria by which to review and approve a given project.

The proposed project will be inspected by the City’s inspection personnel (Inspector) during the construction phase. Final acceptance will be processed only after a determination has been made that the construction of the project is in compliance with all applicable regulations of the City and relevant agencies. The Developer is responsible for providing the City with signed and sealed record drawings of the construction and electronic copies of all final design files in accordance with the list of documents specified in section

1.6 herein.

Section 1 - 1

1.2.2 Project Submittal

Every Developer involved in the subdivision of real property or the construction of any residential, multi-family, commercial or industrial building within the City limits must follow procedures listed in the City’s Overview of Land Development Approval Process flow chart included in Appendix A.

The contractor shall refer to the Project Site Plan Submittal Checklist included in Appendix B and per City Ordinance Section 102 for list of documents that must be submitted to the Planning and Zoning Division in the acceptance process for subdivision infrastructure improvements, off-site utility improvements for non-residential developments and utility improvements.

Construction plans may be submitted only after the City’s Planning Board approval of the submitted Plat.

Actual reservation of plant treatment capacity will be effective upon Construction Plan Approval.

1.2.3 Development’s Utility Master Plan

For residential or non-residential developments constructed in multiple phases or for single phase residential projects with more than one pump station, a Master Plan for water, wastewater, and reclaimed water system is required. The Master Plan must be approved prior to the approval of construction plans.

The Developer is responsible for providing the City with a signed and sealed master plan with the requirements specified in section 2.

1.2.4 Construction Plans

The Developer shall have the construction plans prepared by a Professional Engineer registered in the State of Florida. The signed and sealed plans and specifications are then submitted to the Planning and Zoning Division for distribution and review.

The Developer's Engineer is responsible for the coordination of the design with other construction activity in the public rights-of-way and easements, i.e., State, County, and City highway and utility projects. The Engineer shall verify that the project design is compatible with the design of any existing or proposed City Capital Improvement Plan (CIP) project that may impact development. If design conflicts are encountered, the design constraints imposed by the CIP project shall take precedence over the development's design constraints.

The City will review the plans and specifications to ensure that the facilities proposed for construction are designed in accordance with the criteria in the current Water, Wastewater, and Reclaimed Water Utilities Technical Manual and the Utilities Standard Details included in Appendix C. The hydraulic characteristics of the proposed system will be reviewed by the Utilities Department to establish that the proposed system will operate within any specified flow or demand limits.

If the plans, specifications, or hydraulics do not conform to the requirements of the current Water, Wastewater and Reclaimed Water Utilities Construction Technical Specifications, the City will notify the Engineer and/or Developer of corrections or modifications required.

Once the City determines that the plans are in general conformance with the City's standards, the Developer will be notified by the City that the plans have been approved for construction. Approval does not relieve the Developer of responsibility to ensure that the plans meet the requirements listed in the Water, Section 1 - 2

Wastewater, and Reclaimed Water Utilities Technical Manual in effect at the time of approval. It will be the Developer’s responsibility to make any changes/corrections to the design found during construction to be out of compliance with the Water, Wastewater, and Reclaimed Water Utilities Technical Manual.

The approval-for-construction will remain in effect for a period of five years. A one-year extension may be granted if a written request is submitted to the Planning and Zoning Division at least one month prior to the expiration of the original approval. An extension may be granted if there are no proposed changes to the original approved plans, the plans meet the most current Water, Wastewater and Reclaimed Water Utilities Technical Manual and satisfy the system hydraulic conditions in effect at that time, and the point of connection remains viable.

1.2.5 Construction

The Developer, the Engineer of Record (EOR), and the Contractor must comply with all specific conditions and general conditions listed in the authorization for construction letter provided by the City’s Engineering department.

The Developer, the EOR, and the Contractor shall comply with all requirements of the Federal, State, and City; and other laws, codes, ordinances, and regulations that in any way affect those engaged or employed in the proposed construction, the materials or equipment used in or upon the site, or the conduct of the work.

The Developer, the EOR, and the Contractor shall obtain all permits and licenses, pay all charges and fees, and provide all notices necessary and incidental to the due and lawful prosecution of the work prior to the start of any construction. It shall be the responsibility of the EOR to schedule, arrange and coordinate a preconstruction meeting prior to commencement of any work on a project.

The Contractor is required to work from an approved construction set of plans. All work must be inspected by City inspection personnel. The Contractor shall request an inspection by the Utilities Inspector a minimum of 48 working hours prior to starting construction. The approved construction set of plans and any associated permits shall be located on the construction site at all times. At all times, valves on existing utilities will be operated by City’s Utilities Department only during construction.

1.3 Right-of-Way Use Permits

The Engineer shall take the initiative to determine all the agencies with jurisdiction over the project, particularly agencies requiring permits for right-of-way use, such as Plant City, Florida Department of Transportation (FDOT), Hillsborough County, Polk County, Seaboard/CSX Railroad, or any other appropriate authority. These determinations should be made during the preliminary design stage.

If the Engineer finds that the project involves a non-City right-of-way, the Engineer shall contact the appropriate local office, discuss the project with their Utility Coordinator and comply with that agency's design and permitting requirements. The Engineer shall work simultaneously with the involved agency in finalizing the plans for submittal. City Right-of-Way Use Permits, if required, will be issued by the City’s Engineering Department upon plan approval by all reviewing agencies.

Section 1 - 3

1.4 Utility Easements

Minimum 25-feet wide Utility Easement Dedication is required for water, wastewater, and reclaimed water utilities and minimum 50’x50’ Utility Easement Dedication is required for Lift Stations. Water, wastewater, and reclaimed water easements outside the right-of-way shall be dedicated for City use, and not specified for “public” use. No private entities shall be allowed to use easements dedicated to the City. The easement will need to be at least 10 feet wide centered on the new main and extend from the property line to far enough past the backflow preventer assembly (minimum 5 feet) to allow access for Utilities' personnel to perform annual testing and any maintenance that may be required.

Preparation of the easement agreement will be through the City Attorney. All easements must be accepted by the City/Commission before issuance of Certificate of Occupancy (CO) or project completion. The following documents will need to be provided to the City Attorney.

Surveyor's sketch showing the easement that is acceptable to the City.

Legal description of the easement Title search of the property to make sure that we have all the necessary parties join in the easement

Note: No privately owned structure, including decorative walls, driveways, or fences, shall be constructed in an easement that has been dedicated to the City. No obstruction of whatever kind shall be planted, built, or otherwise created within the limits of the easement, right-of-way or licensed or permitted area without the written permission of the City.

1.5 Authority of Inspectors

City’s inspectors or representatives will inspect all construction, all materials, and may inspect preparation, fabrication or manufacture of supplies. The inspector or representative is not authorized to revoke, alter, or waive any requirements of the specifications, but he or she is authorized to call to the attention of the Contractor and/or Engineer any failure of work or materials to conform to the plans or specifications. The inspector or representative will have the authority to reject materials and may suspend the work, especially if public health or safety is involved. The City will not be responsible for any delay resulted by rejection or suspension due to health or safety concerned. The inspector or representative will not act as foreman, perform other duties for the Contractor, or interfere with the management of the work.

1.6 Requirements of Utility Acceptance

Final acceptance of water, wastewater, and reclaimed water system, including lift stations will be made only after the following conditions are met, but not limited to:

All inspections have been made.

The improvements are found to be in accordance with the applicable regulations of the City, the Florida

Department of Environmental Protection (FDEP), and the standards contained herein; and for contributed assets (privately developed).

The City is provided with all required documentation and testing reports specified in section 2.

Section 1 - 4

All requirements of Code of Ordinances Building and Land Development Regulations are to be met prior to City acceptance of utility and other improvement facilities. The acceptance of improvement facilities within residential and commercial subdivisions is documented by Dedication in the Final Plat.

END OF SECTION

Section 1 - 5

SECTION 2: PREPARATION OF MASTER PLANS,

CONSTRUCTION PLANS, AND RECORD DRAWINGS

2.1 Master Plan

A “Master Plan” for water, wastewater, and/or reclaimed water is required for all residential or non-residential projects to be constructed in multiple phases, or for single phase residential projects with more than one pump station.

The Master Plan must be approved prior to the approval of construction plans.

The construction plans must be consistent with the approved Master Plan.

For any changes to the development, the Developer must submit a revised and updated Master Plan.

A revised Master Plan must be submitted with a letter specifying the proposed revisions to the Master Plan, in addition to the signed and sealed plan drawings.

The requirement for submittal of a revised Master Plan may be waived if the City considers the changes to be minor or not significant.

Signed and Sealed sets of plans as indicated in the Project Site Plan Submittal Checklist included in Appendix B must be submitted to the Planning and Zoning Division to distribute for review and approval.

Master Plan approval does not imply acceptance of easements, construction methods, or other items that may be in conflict with technical standards.

The “Master Plan” will consist of a layout of the major water, wastewater, and/or reclaimed water system superimposed on a topographic map. The layout plan sheet(s) shall be at a minimum scale of one inch = 200 feet and show existing and proposed improvements in sufficient detail to show intent of design. In the event that the number of plan sheets exceeds two sheets at the one inch = 200 feet scale, the Master Plan shall be submitted at a scale of one inch = 500 feet. The Master Plan shall be signed and sealed by a Professional Engineer licensed in the State of Florida. The requirements for each specific utility plan include, but not limited to:

1. General

a. The topographic map shall be one-foot contours.

b. Developments immediately adjacent to undeveloped tracts shall include a conceptual plan for extension of potable water, wastewater, and/or reclaimed water service to said tracts.

c. “Master Plans” shall have a vicinity map showing the location of the project and the scale used.

d. All plan elevations shall use the 1988 NAVD Vertical Datum.

e. All utilities to be owned by the City shall be located within a right-of-way or utility easement.

Section 2 - 1

2. Potable Water

a. Calculations for maximum potable water demand based on ultimate development or use gross acreage and land use. Maximum water demand will be calculated as peak hour flow plus fire flow per Section 3 of this Technical Manual.

b. Consult with the Utilities Department for assistance in obtaining system pressure information.

c. Use the network response curve to design a water distribution network. Then, submit the “Master Plan” with a pipe network analysis report for flow and pressure distribution for approval. The “Master Plan” shall include connection points and pipe sizes. All available information on hydrant locations and lot platting should be included.

d. Total potable water flow for each unit, tract, or phase stating: Type of use (single family residential, master-metered residential, commercial, etc.), Unit Flow Factors, and Peaking Factors.

e. Clear delineation of existing versus future units or tracts.

3. Wastewater

a. Inverts and top elevation for manholes.

b. Pipe diameter (both force mains and gravity lines).

c. Total wastewater flow (both average daily flow and peak) to each pump station. A summary of each unit, tract, or phase, including the contribution to each pump station, stating: Type of use (single family residential, master-metered residential, commercial, etc.), Unity Flow Factors, and Peaking Factors. Pump Station locations with top, invert, and bottom elevations. Clear delineation of existing versus future units or tracts.

4. Reclaimed Water

a. Calculations for reclaimed water demand.

b. Consult with the Utilities Department for assistance in obtaining system pressure information.

c. Submit the final design with a pipe network hydraulic analysis report for flow and pressure distribution for approval. The final design shall include connection points, pipe sizes, meter location(s), and lot platting.

2.2 Construction Plan Format

2.2.1 General

Plans shall be prepared on 22-inch by 34-inch sheets, unless otherwise pre-approved by the City. The cover sheet shall include a vicinity map.

An index of all drawings shall be included on the cover sheet or first sheet following. Include an overall utility plan on one sheet and if there are more than three Plan and Profile sheets, include a key map to identify the Plan, and Profile sheet numbers.

Section 2 - 2

A title block shall be located in the lower right-hand corner of each sheet including the cover sheet identifying the Engineer of Record (EOR), firm, telephone number, and page content. The title block shall also list the datum used.

The construction plans submitted for review and approval must be signed, sealed, and dated by the Florida Registered Professional Engineer responsible for the project.

All submittals must be accompanied by a letter of transmittal to include the name, address, and telephone number of the EOR.

If a pressure system is to be constructed, a copy of the manufacturer's pump performance curve overlaid on the system response curve must be included in the submittal.

All plan elevations shall use the 1988 NAVD Vertical Datum, Florida West Datum, NAD 83.

All construction plans require the EOR to have Level “A” Subsurface Utility Excavation (SUE) work

(locate) performed for all points of connection. Level “A” SUE shall comply with the definition by ASCE 38-02 and adopted by FDOT. SUE work shall be submitted as part of the construction plans.

2.2.2 Design Criteria

The design criteria and specifications presented in Sections 3, 4, and 5 herein and within the Water, Wastewater and Reclaimed Water Utilities Construction Technical Specifications shall be used in preparation of design plans and specifications.

2.2.3 Drawings

Construction plans with gravity system shall show both plan and profile views. Plans with only on-site water, reclaimed water, and wastewater pressure facilities will not require profile views, unless the proposed construction will be within areas of existing infrastructure. The horizontal scale may be one inch = 20 feet down to, but no less than, one inch = 40 feet. The vertical scale shall be one inch = four feet.

When proposed construction will be within areas of existing infrastructure, e.g., points of connection to existing infrastructure in the road right-of-way, plan and profile views shall be shown. The horizontal scale shall be one inch = 20 feet and the vertical scale shall be one inch = four feet. All underground utilities, storm drains or other structures which may cross or be located close to the proposed pipelines and structures shall be shown on the drawings in both plan and profile views. Show cross section details of all conflicting crossings and location and elevation of all air release valves.

2.2.4 Utility Easements

Potable and reclaimed water transmission/distribution mains and wastewater collection systems must be constructed within City road rights-of-way. Under special circumstances, utility lines within easements may be approved. All pipeline easements shall be at least 25-feet wide.

All perpetual utility easement agreements or easement dedications by Plat shall include the following condition: “No structure or pavement shall be placed or constructed, permanently or temporarily, on, in, or over the easement.”

Water, wastewater, and reclaimed water easements outside the right-of-way shall be dedicated for “City of Plant City” use, and not specified for “public” use. Minimum 25-feet wide Utility Easement Dedication is

Section 2 - 3 required for water, wastewater, and reclaimed water utilities and minimum 50’x50’ Utility Easement Dedication is required for Lift Stations. The easement will need to be at least 10 feet wide centered on the new main and extend from the property line to far enough past the backflow preventer (minimum 5 feet) to allow access for Utilities' personnel to perform annual testing and any maintenance that may be required.

Preparation of the easement agreement will be through the City Attorney. All easements must be accepted by the City/Commission before issuance of Certificate of Occupancy (CO) or project completion. The following documents will need to be provided to the City Attorney.

Surveyor's sketch showing the easement that is acceptable to the City.

Legal description of the easement Title search of the property to make sure that we have all the necessary parties join in the easement

2.3 Standard Items for Construction Plan Review

2.3.1 All Construction Plans

Complete and submit Project Submittal Checklist.

Plans on 24-inch by 36-inch paper.

Proper scale is used and noted on each view.

Plans must reflect the approved point of connection (P.O.C.)

North arrow, abbreviations, notes, etc.

Signed, sealed and dated by the Engineer of Record registered in the State of Florida (all sheets).

Width and center line of each right-of-way indicated.

Width of pavement and distance to property line shown for all streets.

Street names or identifiers indicated (correct location on plan).

Subdivision name, lot, and block numbers.

All existing City-regulated utilities proximate to the design shall be shown on the plan view in their reported location with dimensioning.

Maintain a minimum vertical clearance for all utility crossings, as specified in 62-555 F.A.C.

Size, type, material, and length of pipes shown for all water, reclaimed water, and wastewater lines both on-site and off-site.

Whenever the water, reclaimed water, or wastewater line crosses existing pavement, specify the crossing method, i.e., jack and bore or open-cut.

Specify the invert of all intersecting utilities on the plan or profile views with the accompanying SUE information.

Minimum line clearance from property line is five feet.

Minimum cover is 36 inches over water pipelines, reclaimed water pipelines and force mains.

Section 2 - 4

Horizontal and vertical separation between underground water mains and sanitary or storm sewers, wastewater or stormwater force mains, and reclaimed water pipelines shall be per F.A.C. 62-555.314.

Permanent structures shall not be constructed in easements or right-of ways containing water, reclaimed water or wastewater utilities.

Show and identify the easement for meters and backflow preventer assemblies. The easement shall be adequately sized to accommodate operation and maintenance of any water meter and backflow preventer assemblies by utilities operators and equipment.

Datum information shall be marked on each sheet of the construction plans.

Include the sample point location, dead-end terminate with a fire hydrant, flushing hydrant, or blow-off for flushing purpose per City’s standard details.

2.3.2 Plans with Water Mains

Joint restraint length shall be specified at all water main bends, valves, fittings, fire hydrants, and tapping sleeves. The joint restraint information shall be included on the drawings. The joint restraint detail shall conform to City’s Standard Details.

Valves with roadway boxes shall be provided for all branch connections (three valves on a tee, four valves on a cross), loop ends, fire hydrant stubs and other locations, as required by the City’s Utilities Department to facilitate operation of the distribution system. Valves shall be placed so that the maximum allowable length of water main required to shut down for repair work shall not be more than 500 feet in commercial, industrial, multi-family and residential districts; and 1,000 feet in rural areas. If construction is to be phased, a valve followed by one full length of pipe must be installed at the end of each line that is to be continued. Valves shall meet the requirements of Water, Wastewater and Reclaimed Water Utilities Construction Technical Specifications.

Air release valves shall be at the specified water main high points where the profile is such that air pockets or entrapment could occur resulting in flow blockage.

Fire hydrant spacing in accordance with Section 3 of this technical manual.

The location of sleeves for use in connection with far side water service installations.

Water distribution mains within residential subdivisions shall be PVC, or Ductile Iron Pipe (DIP), and shall comply with the requirements of Water, Wastewater and Reclaimed Water Utilities Construction Technical Specification. Note size and type of material.

A note indicating that PVC water mains shall have suitable locator/tracer wire affixed to the pipe per City’s standard details.

2.3.3 Plans with Wastewater Gravity Mains

For gravity mains, the size, type of pipe, slope, and distance between manholes shall be stated on the profile view.

Invert elevations and directions shall be specified for each pipe entering or exiting a manhole. Rim elevation must also be specified. Identify the lowest point (rim elevation) in the gravity system.

All manhole stubs and connections shall be shown on both the plan and profile view. All stubs shall include plugs.

Section 2 - 5

Manhole and manhole connection details shall be shown.

Drop manhole and detail is required for drops two feet or more per City’s Standard Details.

Gravity mains shall be eight-inch PVC minimum within right-of-way, six-inch minimum for double service laterals, and four-inch minimum for single service laterals.

Manholes located in low-laying area or near a storm inlet, or as directed by the City, shall include water-tight manhole cover inserts.

2.3.4 Plans with Wastewater Force Mains

Joint restraint length shall be specified at all force main bends, valves, fittings, and tapping sleeves.

The joint restraint information shall be included on the plan and profile drawings. The joint restraint detail shall conform to City specifications.

Valves with roadway boxes shall be provided for all branch connections (three valves on a tee, four valves on a cross), and other locations as required by the City’s Utilities Department to facilitate the operation of the distribution system. Isolation valves shall be provided at intervals not to exceed 2,000 feet. Branches of intersecting force mains shall be provided with appropriate valves such that one branch may be shut down for maintenance and repair without interrupting the flow of other branches.

Stub-outs on a force main, placed in anticipation of future connections, shall be equipped with a valve to allow such connections without interruption of service. Valves shall meet the requirements of Water, Wastewater and Reclaimed Water Utilities Construction Technical Specifications.

Air release valves shall be specified where the force main profile is such that air pockets or entrapment could occur resulting in flow blockage.

A note indicating that all PVC force mains shall have a locator/ tracer wire affixed to the pipe.

Pipe and fittings used in force mains shall comply with the requirements of Water, Wastewater and

Reclaimed Water Utilities Construction Technical Specification.

2.3.5 Plans with Reclaimed Water Mains

Joint restraint length shall be specified at all reclaimed water main bends, valves, fittings, and tapping sleeves. The joint restraint information shall be included on the plan and profile drawings. The joint restraint detail shall conform to the City’s specifications. Valves with roadway boxes shall be provided for all branch connections (three valves on a tee, four valves on a cross), and other locations as required by the City’s Utilities Department to facilitate operation of the distribution system. Valves shall be placed so that the maximum allowable length of reclaimed water main required to shut down for repair work shall not be more than 1,000 feet in commercial, industrial, multi-family, and residential districts; and 2,000 feet on transmission systems. If construction is to be phased, a valve followed by one full length of pipe shall be installed at the end of each line that is to be extended. Valves shall meet the requirements of Water, Wastewater and Reclaimed Water Utilities Construction Technical Specifications.

Air release valves (manual preferred) shall be specified where the water main profile is such that air pockets or entrapment could occur resulting in flow blockage.

Section 2 - 6

The location of sleeves for use in connection with far side reclaimed water service installations.

Reclaimed water distribution mains within residential subdivisions shall be PVC, or Ductile Iron Pipe (DIP). Note pipe size and class and type of material per the City’s Approved Products List.

A note indicating that PVC reclaimed water mains shall have a locator/tracer wire affixed to the pipe.

2.3.6 Jack and Bore Crossings

Jacked crossings shall show the casing pipe on both the plan and profile view. City standard jacking detail must be included. Jack & Bore details can be found in Water, Wastewater, and Reclaimed Water Utilities Standard Details. A cross sectional detail of the jacking shall be included with all accompanying SUE information. All utility crossings require a Level “A” SUE locate.

Casing pipe diameter must be specified on the detail and profile views.

Class and thickness of casing pipe shall be specified.

2.3.7 Plans with Wastewater Pump Stations (Privately Owned)

Location of pump station on private property.

Design capacity (average daily/peak flows) and system response/curve calculations.

Pump identification, including all nameplate data.

Pump detail drawing indicating the minimum submergence for the pump.

Pump curve for selected pump with design point noted and minimum and maximum system curves plotted on the pump curve.

Wet well operating elevations, inverts, and slab elevations.

Identification of fittings and valves on private property.

Add a note that the lift station will be privately owned and maintained.

2.3.8 Plans with Wastewater Lift Stations (to be City Owned and Maintained)

Size of site to be dedicated to City. Minimum 50 feet by 50 feet site size is required for lift stations. The service driveway shall be a minimum of 25 feet from edge of road pavement to front of pump station fence/gate, unless otherwise approved.

Setback requirements for a Master Lift Station (serves 1,500 ERCs or more) are 20 feet to residential lot line and 50 feet to surrounding residential structures or building envelopes. Setback requirements for a Neighborhood Lift Station (serves less than 1,500 ERCs.) are 20 feet to the rear or side lot line and 30 feet to surrounding residential structures or building envelopes.

All utilities required for maintenance and operation of the lift station.

Valve and piping identification.

Backflow prevention device.

By-pass capabilities approved by the City.

Pump identification, including all nameplate data.

Pump detail drawing indicating the minimum submergence for the pump.

Section 2 - 7

Design capacity (average daily/peak flows) and system response/curve calculations.

Wet well design criteria and pump control level settings.

Pump curve for selected pump with design point noted and minimum and maximum system curves plotted on the pump curve.

Provide all electrical and Supervisory Control and Data Acquisition (SCADA) components as shown on the Standard Details.

2.3.9 Wastewater Lift Stations Hydraulic Requirements

Prior to actual design of any wastewater lift station, the Developer's Engineer must coordinate with the City to verify the wastewater capacity. Proper coordination will assure the proposed lift station will meet the hydraulic requirements of the City wastewater system.

2.4 Record Drawing Submittals

Following completion of construction and testing, the Engineer of Record (licensed in the State of Florida) shall submit, to the Planning and Zoning Division, the following:

1. USB 3.0 flash drive (preferred) or CD/DVD containing the following "Record” drawings files:

a. AutoCAD files:

i. Development Projects (Contributed Assets): One (1) AutoCAD 2018 or later DWG file having no XREF dependencies and containing a consolidated, pre-construction base map geo-referenced to the Florida West NAD 83 and visibly include at least one (1) City benchmark published in LABINS. Said base map shall include the site topography, roadway geometry, all existing utility geometry (water, wastewater, reclaimed water, storm water, and other buried utilities if known), all newly installed utility geometry (water, wastewater, reclaimed water, and storm water), and all newly installed utility features (valves, fittings, manholes, etc.). All geometry and utility features shall be easily discernable (line weight and type) on separate layers with appropriate labeling. No cross sections, profiles, construction notes, tabs, dimensions, or details need to be included.

ii. Capital Improvement Projects: One (1) AutoCAD 2018 or later DWG file with all associated XREFs, blocks, sheets, survey drawings, details, profiles, DWF underlays, raster images, data point files, point file format descriptors, and TIN files. Also, one (1) consolidated drawing file in DWG format meeting all the requirements as delineated above.

b. PDF files:

i. All projects: One (1) PDF file electronically signed and sealed by EOR containing a complete set of Record Drawings for the Project. The PDF file shall include the entire project plan set, from cover sheet through the final details. It shall be comprehensive in nature and include all water, wastewater, and reclaimed water utility design sheets, all plan/profile sheets, all roadway design sheets, all storm water utility and drainage design sheets, all cross sections, all construction details, and any landscaping plans associated with the project (saved at 24-inch by 36-inch, 300 DPI with bar scale).

Section 2 - 8

ii. Capital Improvement Projects: One (1) color PDF of the Contractor’s red lined markups (As-built plan set).

All drawing revisions shall be consistent in style, color, line weight, font, symbol, and layer with the original construction documents. No additional colors, fonts, line weights, or block symbol shall be accepted.

All file revisions must be performed on a computer using AutoCAD 2018 or later. No conversions from Microstation or other CAD based programs will be accepted.

Record drawings must reflect all changes to the approved construction plans. The completed Record Drawings shall have the look and appearance of the original construction plans, meeting the standards set forth above. When Record drawings have numerous changes or are so “congested” that legibility is an issue, the City will require the Engineer of Record to supply additional sheets showing the detailed changes to the original plans. The Record Drawings shall also include the following information:

1. All Water/Wastewater/Reclaimed Water Record Drawing shall be prepared by using data provided by Licensed Land Surveyor in the State of Florida.

a. Offsets from edge of pavement and right-of-way to pipelines shall be shown at not greater than 200 feet intervals.

b. Location of the ends of casing pipe, concrete encasement, and sheeting by X-Y-Z coordinate.

Include size (diameter), length, material type and wall thickness of casing.

c. Grade elevations.

d. Datum information.

e. Record changes in alignment or elevation of other utilities due to construction.

f. Record all found utilities not shown on approved construction plans.

g. Installed pipe diameter, material type, and AWWA/ASTM/ANSI classification. If abandonment of existing facilities is approved by the City, provide size, type, depth, location, and limits (XYZ coordinates) of any abandoned pipe. Also include the method of abandonment (i.e., grout filled, etc.).

h. Cross-sectional details shall be provided where utilities cross.

i. Record Drawings shall contain a clear statement if the project name has changed.

j. Information on the as-built features (potable water, wastewater, and reclaimed water) shall be submitted per Asset Data Spreadsheets included in Appendix D. The information shall be submitted on a USB 3.0 flash drive (preferred) at the time of Record Drawing submittal. Each feature on the spreadsheet shall be given a unique ID that shall correspond with its designation on the Record Drawings.

2. Water, Wastewater, and Reclaimed Water Pressure Pipe Drawings

a. X-Y-Z coordinates taken at the top of pipe/appurtenance and at finished grade for all fittings, bends, reducers, sleeves, plugs, caps, tees, crosses, taps, restrained joints, valves, blow-offs, hydrants, high and low points, meter, etc.

Section 2 - 9

b. Provide installed top of pipe (XYZ coordinates) for pipes and finished grade elevations at a minimum of 200 feet intervals for all pressure mains and at all high points for air release valves.

For offset air release valves, provide XYZ coordinates at tap and rim of the air release valve.

c. X-Y-Z coordinates for all service connections when they are not on property lines.

3. Gravity Line Drawings and Inspection Report Requirements

a. On the plan view, show X-Y-Z coordinates at center of wastewater manhole cover. Annotate the distance between manholes, finished rim elevations, entrance and exit pipe invert elevations, invert directions at each manhole, and pipe slopes on plan and profile sheets.

b. Provide X-Y of all lateral cleanouts and the depth of cover at the property line.

c. Provide size, length, invert elevation and surface grade of stub outs for future connections.

d. Provide Closed-Circuit Television (CCTV) report and videos of all constructed gravity lines.

4. Wastewater Lift Station Drawings

a. Provide Pump nameplate data.

b. Pump detail drawing indicating the minimum submergence for the pump.

c. Wet well operating elevations, inverts, and slab elevations.

d. Operation and Maintenance (O&M) Manual

2.4.1 Other Certification

When certification of "Record" Drawings is performed by an Engineer other than the Design Engineer, the following requirements shall apply:

The certification shall be completed by a Registered Professional Engineer (PE) licensed in the State of Florida.

Any deviations from the original design which were made shall be coordinated with the Design Engineer to insure that the integrity of the original design was not compromised. The Record Drawing shall meet all the requirements as indicated above, with the exception that any items revised by the certifying Engineer shall be highlighted on the drawing, using a small numbered triangle and annotated in the revision block. Revisions shown on Record Drawings shall be in CAD or drafted to the same quality as the original drawings, not hand drawn. All revisions to computer generated drawings shall be made in AutoCAD 2018 or later using the same symbols, style, colors, line weights and fonts as used in the original drawings. All completed Record Drawings shall have the look and appearance of the original drawings.

A statement by the certifying Engineer, responsible for making the revisions, shall be placed on each sheet, which states that they made the revisions designated by the numbered triangles and is responsible for the revision.

Each sheet shall contain the certifying Engineer's engineering company logo with their Certificate of Authorization, name, address and telephone number.

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Each sheet shall contain a statement that the certifying Engineer, or someone under their direct supervision, observed the construction, prepared the Record Drawing, and found that the construction was performed in substantial compliance with the intent of the design drawings.

The certifying Engineer shall sign in ink, date, and seal each record drawing sheet. Drawings and electronic file submittals shall comply with the requirements in Section 2.4.

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SECTION 3: SPECIFICATIONS FOR DRINKING WATER

DISTRIBUTION SYSTEMS DESIGN

3.1 General

The following section covers the general design, review of plans and specifications, and acceptance of drinking (potable) water distribution systems, water main extensions, and all appurtenant items which are to be constructed by private enterprise and are to be owned and maintained by City.

All improvements and modifications made to the City’s water system shall be done in accordance with plans approved by the City. Material, workmanship, and installation shall comply with Water, Wastewater, and Reclaimed Water Utilities Construction Technical Specifications and Standard Details.

All pipeline and appurtenance materials in contact with potable water must be NSF-61 certified and shall conform to the latest standards issued by ASTM, AWWA and ANSI/NSF. All backflow preventer assemblies shall comply with the City of Plant City Manual of Cross-connection Control.

3.2 Plans Preparation

All water distribution systems, water main extensions, and all appurtenant items shall be designed in accordance with the applicable regulations of City, the Florida Department of Environmental Protection (FDEP), and the standards established herein.

City shall own and maintain all portions of the water system up to and including the backflow, water meter, curb stop and meter box.

The distribution system or any portion thereof, which is to become the property and sole responsibility of the City’s Utilities Department, shall be designed and constructed within a public right-of-way or easement which may be used for said purpose. The primary feed for the distribution system shall be routed within the City road right-of-way. A secondary feed may be routed within a utility easement dedicated to the City.

The water distribution system or water main extension shall be designed and constructed in accordance with the requirements specified in Water, Wastewater and Reclaimed Water Utilities Construction Technical Specifications and standard details.

3.3 Plans Review

All plans shall comply with the requirements of the Division 1, Section 2 of this Technical Manual.

3.4 Project Acceptance

Following completion of construction and testing, the water system will need to clear through the Florida Department of Health (FDOH) to be placed in service. The Developer's Engineer of Record (EOR) shall submit certified “Record” drawings and the Asset Data spreadsheet with the “as-built” information shown on the original design as outlined in Division 1, Section 2 of this Technical Manual.

Section 3 - 1

3.5 System Design and Flow Criteria

The provisions of this Section set forth the general requirements for the design of potable water distribution systems and facilities and provide criteria for determining flow demands. The Engineer shall comply with all the requirements of the FDEP in addition to the criteria contained herein.

3.5.1 Line Sizing Criteria

The pipe sizing design criteria for water distribution systems shall as a minimum provide for at least 100% of the combined peak hour, maximum day demand rate, plus fire flow. The allowable minimum service pressure under said design condition shall not be less than 20 psi at grade level, prior to meter connection, or 35 psi in a transmission line. Design flows and method of computation shall be submitted to the Planning and Zoning Division for review by the City’s Utilities Department at the time of the preliminary plat or site plan submittal, or at the time of the Master Plan submittal. When a distribution main will serve existing or future developments beyond the borders of the proposed site, the City may request oversizing.

3.5.2 Minimum Line Size

The minimum pipe size for distribution mains shall be four inches, with the exception that the minimum size for distribution mains serving fire hydrants and fire hydrant branches shall be a minimum of six inches in diameter.

3.5.3 Line Routing

The primary feed for the water distribution system for a residential or commercial subdivision shall be routed within City, County, or State road right-of-way. A secondary feed may be routed within a water, wastewater, or reclaimed water utility easement that is dedicated to the City, only if there is no road right-of-way available. Multiple points of connection may be required in order to minimize service outage in emergencies, repairs, etc., and to improve fire protection and water quality.

As a minimum, at the entrance to the project, the off-site main extension shall be extended within the right-of-way with a valve and one length of pipe with a cap.

The water mains shall be looped making appropriate tie-ins to avoid dead-ends, in order to provide increased reliability of service and reduce head loss.

Sufficient valves shall be provided on water mains so that inconvenience and sanitary hazards will be minimized during repairs. Valves shall be located no more than 500 feet apart in commercial, industrial, and high-density residential areas and no more than 1,000 feet in all other areas.

The horizontal and vertical separation between underground potable water mains and sanitary or storm sewers, wastewater or stormwater force mains, and reclaimed water mains shall be per F.A.C 62-555.314.

3.5.4 Depth of Cover

Cover as measured from finished grade to top of the pipeline shall be a minimum of 36 inches for pipe diameters up to and including 12 inches.

Section 3 - 2

Depth of cover for pipes greater than 12 inches in diameter shall be a minimum of 48 inches.

For pipe in Florida Department of Transportation (FDOT) right-of-way, City or County arterial road right-of way, or crossings of City or County arterial roads, the minimum depth of cover shall be 48 inches.

3.5.5 Flow Criteria

Residential and Commercial Flow Demand: Flow demands for design shall be calculated based on full or projected ultimate development. Peaking factors for water flow criteria shall be in accordance with the Application for Engineering Plan Review Section D City’s General Requirements for Site Water and Sewer included in Appendix E.

Needed Fire Flow: Fire flow requirements shall be calculated in accordance with the guidelines specified by the Insurance Services Office (ISO) based on type of construction, type/size of occupancy, and distance from adjacent structures. The minimum residual pressure at peak hour, maximum day demand condition, plus fire demand shall not be less than 35 psi for transmission mains and 20 psi for distribution mains.

3.5.6 Fire Hydrant Spacing, Location, and Flow

Fire hydrant access and water supply shall be in accordance with National Fire Protection Association

NFPA 1, Chapter 18.

Manufacturing and Industrial Areas: The maximum distance to a fire hydrant from the closest point on the building shall not exceed 300 feet. The maximum distance between hydrants shall not exceed 500 feet. The minimum required fire flow shall be 1000 gpm.

Commercial and Apartment Areas: The maximum distance to a fire hydrant from the closest point on the building shall not exceed 400 feet. The maximum distance between hydrants shall not exceed 500 feet. The minimum required fire flow shall be 1000 gpm.

Residential Areas: Fire hydrants shall be placed a maximum of 800 feet apart along the right-of-way with a maximum of 500 feet to the farthest lot. The minimum flow from each hydrant shall be 1000 gpm.

Other Areas: Fire hydrants shall be placed a maximum of 1,000 feet apart, along the right-of-way of rural roads or other areas as approved by the City on a case-by-case basis.

3.5.7 Temporary Water Plan for Construction

The provisions set forth herein shall be applicable to all construction projects.