Technical_Specifications.pdf

PC – 000964A 03/19/2018 1

Note: The Supplemental Technical Specifications presented herein are project specific and are only related to this project and are not part of Pinellas County Utilities’ Standard Technical Specifications (PCU-STS). All STS will be designated as such in lower right hand corner of document by PCU-STS. All Supplemental Technical Specifications will have a (S) designation following the section title in the Table of Contents and each specification will be designated in lower right hand corner as PC-000964A, where 000964A designates the specific Project Job Number.

SANITARY SEWER PUMP STATION REPAIR, REHABILITATION, &

IMPROVEMENTS

PID NO.: 000964A BID NO.:

TABLE OF CONTENTS

SECTION D – SPECIFICATIONS

DIVISION 00 –

00 75 00

DIVISION 01 –

01 14 30 01 20 01 01 34 26.23 01 35 00 01 42 01 01 45 17 01 51 41 01 55 26 01 57 00 01 57 13 01 73 19 01 78 39

DIVISION 02 –

02 41 00

DIVISION 03 –

03 10 01 03 45 00

DIVISION 05 –

05 05 30

DIVISION 09 –

09 91 00

SPECIAL PROVISIONS

Special Provisions (S)

GENERAL REQUIREMENTS

Coordination with County’s Operation (S) Measurement and Payment (S) Confined Space Entry Plan (S) Special Project Procedures Reference Standards and Definitions Pipeline Pressure And Leakage Testing Requirements Temporary By-Pass Pumping System (S) Traffic Regulation Control of Work Erosion and Sedimentation Control Installation (S) Project Record Documents

EXISTING CONDITIONS

Demolitions (S)

CONCRETE

Concrete Materials Precast Concrete Accessories (S)

METALS

Anchorage Systems (S)

FINISHES

Painting and Protective Coatings

2 PC – 000964A

Note: The Supplemental Technical Specifications presented herein are project specific and are only related to this project and are not part of Pinellas County Utilities’ Standard Technical Specifications (PCU-STS). All STS will be designated as such in lower right hand corner of document by PCU-STS. All Supplemental Technical Specifications will have a (S) designation following the section title in the Table of Contents and each specification will be designated in lower right hand corner as PC-000964A, where 000964A designates the specific Project Job Number.

ELECTRICAL

General Provisions for Electrical Systems (S) 600 Volt Cable (S) Instrumentation Cable (S) Hangers and Supports for Electrical Systems (S) Rigid Conduit (S) Sealed Fittings (S) Expansion/Deflection Fittings (S) Pull, Junction and Terminal Boxes (S) Outlet Boxes (S) Underground Duct Banks (S) Electrical Identification for Electrical Systems (S) Dry Type Transformers (S) Receptacles (S) Snap Switches (S) Disconnect Switches (S) Combination Magnetic Motor Starters (S) Transient Voltage Surge Suppression (S)

EARTHWORK

Excavation and Backfill for Pipes Excavation and Backfill for Structures

EXTERIOR IMPROVEMENTS

Stabilized and Asphalt Roadway Restoration Concrete Sidewalks, Driveways and Gutters Seeding and Sodding

UTILITIES

Manhole Rehabilitation Sanitary Sewer Pipe Repairs Multi-Component Stress Panel Liner System Urethane/Epoxy, Polyurea Liner System Polymorphic Resin Liner System Horizontal Directional Drilling Potable Water Main Piping and Appurtenances Disinfection of Potable Water Mains Submersible Wastewater Pumping Stations Gravity Sewers Sanitary Sewage Force Mains and Appurtenances

DIVISION 26 –

26 05 05 26 05 19.23 26 05 23.13 26 05 29 26 05 33.13 26 05 33.23 26 05 33.26 26 05 33.33 26 05 33.36 26 05 43.13 26 05 53 26 22 13.23 26 27 26.13 26 27 26.23 26 28 16.33 26 29 13.26 26 43 00

DIVISION 31 –

31 23 33 31 23 34

DIVISION 32 –

32 12 01 32 13 01 32 92 01

DIVISION 33 –

33 01 33 33 01 34 33 01 35 33 01 36 33 01 38 33 05 21 33 11 01 33 13 01 33 32 00 33 33 01 33 34 00 33 39 00

03/19/2018

Sanitary Utility Sewerage Structures

PC – 000964A 03/19/2018 3

Note: The Supplemental Technical Specifications presented herein are project specific and are only related to this project and are not part of Pinellas County Utilities’ Standard Technical Specifications (PCU-STS). All STS will be designated as such in lower right hand corner of document by PCU-STS. All Supplemental Technical Specifications will have a (S) designation following the section title in the Table of Contents and each specification will be designated in lower right hand corner as PC-000964A, where 000964A designates the specific Project Job Number.

DIVISION 40 – PROCESS INTEGRATION

40 95 01 Wastewater Pump Station SCADA Remote Telemetry Unit (RTU)

DIVISION 48 – ELECTRICAL POWER GENERATION

48 11 30 Standby Diesel Generators

03/19/2018 PC– 000964A

Special Provisions

00 75 00-1

1 SECTION 00 75 00

3 SPECIAL PROVISIONS

5 These Special Provisions provide additional information and modify the Pinellas County 6 Engineering Standard Technical Specifications (STS) for Utilities Construction. Unless 7 noted herein, all conditions of the standard specifications apply.

9 ARTICLE SP-1 SUMMARY OF WORK

11 1. PROJECT SCOPE

13 The Special Provisions contained in this section are intended to be cooperative with, 14 to supplement, or to modify the instruction to Bidders, General Conditions and 15 Specification, and the intent of any and all Special Provisions shall govern in the event 16 of conflicts.

17 This Contract shall provide for the rehabilitation of sanitary sewer pumping stations 18 at various locations throughout the County, as circumstances dictate. This includes, but 19 is not limited to furnishing and installing pumps, pipes, valves, fittings, electrical 20 equipment, panels, conduits, vaults, trenching/boring, bypass pumping, dewatering, 21 restoration, obtaining all necessary permits, testing and any other incidental work 22 required to re-commission the pump station per the specified work directed by Pinellas 23 County.

24 The County reserves the rights to award separate Contracts for repairs for major 25 work and/or when unusual conditions are encountered. The Engineer will make all 26 efforts to group the work geographically to minimize mobilization costs to the 27 Contractor.

28 The pump station rehabilitation work assigned to the Contractor may require 29 prioritization by the County. The Engineer may order the Contractor, in writing to 30 accomplish the work in accordance with a given chronological sequence.

31 The Contractor shall utilize the Pinellas County Utilities Engineering website for 32 Pump Station Standard Details and Materials Specifications at:

33 http://www.pinellascounty.org/utilities/PDF/spec-manual.pdf

36 2. LOCATION OF PROJECT

38 The Project is located in the countywide sanitary sewer service of Pinellas County 39 Utilities, Pinellas County, Florida, and may be situated on County-owned property, in 40 easements and private property.

41 The Contractor shall erect a sign at each work site with his name and emergency 42 telephone numbers so that the public can call and report any unsafe conditions or 43 malfunctioning equipment at the site at any time or day of the week.

00 75 00-2

1 3. PROJECT SCOPE

3 The work includes furnishing all labor, tools, equipment, material, and performing all 4 operations necessary to rehabilitate sanitary sewer pumping stations, as shown on the 5 drawings and as specified, in order to return to service for an extended period of time 6 without future repairs.

7 This contract will be used by the County for pump station rehabilitation or 8 replacement and associated incidental work throughout Pinellas County at various 9 locations within commercial and residential areas and as circumstances dictate. The

10 projects are generally short term and are beyond the manpower or equipment 11 capabilities of the County forces.

12 Bids will be received for the Project as set forth in the Bid Form, and the award, if 13 the award is made, will be made as the County deems to be in its best interest.

14 Pinellas County reserves the right to delete any portion or any complete section of 15 the work in this Contract.

16 Payments will be made on a unit prices basis only for the items described herein 17 and listed on the Bid Form. Any additional work not specifically listed, but required for 18 satisfactory completion of the work, shall be considered to be included in the scope of 19 each Project assigned, with a price agreed to before construction or installation thereof.

20 The work on each assignment will include the furnishing of all services, labor, 21 equipment, material, permits, bypassing and de-watering necessary for complete 22 performance in a thorough and workman-like manner, in accordance with plans and/or 23 written description as provided by Pinellas County .

24 Work under this Contract is to be assigned on an individual pump station project 25 basis. Each individual assignment shall be handled as though it were an individual 26 Contract. Such assignments may be made in various areas in the County and may be 27 under a variety of conditions. Pinellas County reserves the right to establish the 28 specific order in which the work is to be completed and delete any potion of a assigned 29 Work Order. There are no guaranteed Work Order locations.

30 The Contractor is advised that the quantities may be increased or decreased during 31 the length of this Contract. The Bid Form quantities are estimated quantities and 32 should not be construed to mean that these or any part of the estimated quantities will 33 be installed. Any bids determined to be “weighted” so as not to represent realistic item- 34 by-item cost will be rejected.

35 A separate Notice to Proceed (NTP) or Job Order shall be issued to the Contractor 36 for each assignment requested by the Owner. All such notices shall specify the date of 37 issuance, cost estimate, and expected duration. Construction is expected to begin 38 within ten (10) days thereafter. Plans and/or written description and applicable pay 39 items(s) will be provided by the County, indicating the approximate lengths, size of pipe 40 and type of material (D.I.P., stainless steel, P.V.C., or H.D.P.E. pipe) and 41 appurtenances to be installed. Each NTP shall be issued in writing, by the County or an 42 authorized representative. The Contractor shall not undertake any assignment without 43 a duly authorized NTP.

44 Each assignment shall be constructed in a reasonable time as determined by the 45 Engineer.

00 75 00-3

1 All work shall be performed in an expeditious and professional manner. In the event 2 the County determines work on a particular assignment is not progressing in a 3 satisfactory manner and at a reasonable speed, the Engineer may, at his discretion 4 reassign the work in a separate contract to another Contractor or authorizes the 5 completion of the work by County forces. In this event the Contractor will only be 6 compensated for the work completed and Pinellas County Utilities is not obligated to 7 the Contractor for uncompleted work remaining on the assignment or contract. The 8 Contractor will not be paid for mobilization on work assignments not completed.

9 The Contractor will be provided for each individual project, two (2) copies of plans

10 and/or written description of work with complete data when available. The Contractor 11 shall be responsible for actual field layout of proposed alignment and as-built 12 documentation of completed work.

13 The Contractor will submit an itemized invoice upon completion of each portion or 14 phase of construction for approval and payment together with an affidavit stating all bills 15 for labor or materials or appliances in connection with the particular project have been 16 paid. Request for payments shall be made on the format as shown on the application 17 for payment form for each pump station when completed.

18 In the event this Contract must be voided due to unsatisfactory completion of 19 assignments, a three thousand dollar ($3000.00) liquidated damages payment will be 20 assessed to cover the cost of re-advertisement of the contact.

23 ARTICLE SP-2 ADDITIONAL INFORMATION AND STUDIES

25 A. LIST OF TENTATIVE WORK LOCATIONS

27 The list immediately following this section is a tentative list of 28 possible work locations throughout the County. The Contractor will 29 receive a Notice to Proceed (NTP) for each location and the scope 30 of work will be more clearly defined.

32 The Contract is an Annual Contract, which will also be used for 33 emergency work assignment orders to perform work at any Pump 34 Station at anytime and any location throughout Pinellas County.

36 B. DATA FOR ALL PINELLAS COUNTY UTILITIES PUMP

37 STATIONS

39 Following is a list of all Pump Station locations throughout Pinellas 40 County. (Contractor shall verify all information provided by related 41 to assigned task prior to execution of the work as will not be held 42 liable for the accuracy of the data provided after work has started).

43 LIST IMMEDIATELY FOLLOWING THIS SECTION.

46 ARTICLE SP-3 SUPPLEMENTAL TECHNICAL SPECIFICATIONS

00 75 00-4

2 Note: The Supplemental Technical Specifications presented 3 herein are project specific and are only related to this project and 4 are not part of Pinellas County Engineering’s Standard Technical 5 Specifications. All STS will be designated as such in lower right 6 hand corner of document by PCU-STS. All Supplemental 7 Technical Specifications will have a (S) designation following the 8 section title in the Table of Contents and each specification will be 9 designated in lower right hand corner as -000964A, where

10 000964A designates the specific Project Job Number.

12 01 14 30 Coordination with County’s Operations 13 01 20 01 Measurement and Payment 14 01 34 26.23 Confined Space Entry Plan 15 01 51 41 Temporary By-Pass Pumping System 16 01 73 19 Installation 17 02 41 00 Demolitions 18 03 45 00 Precast Concrete Accessories 19 05 05 30 Anchorage Systems 20 26 05 05 General Provisions for Electrical Systems 21 26 05 19.23 600 Volt Cable 22 26 05 23.13 Instrumentation Cable 23 26 05 29 Hangers and Supports for Electrical Systems 24 26 05 33.13 Rigid Conduit 25 26 05 33.23 Sealed Fittings 26 26 05 33.26 Expansion/Deflection Fittings 27 26 05 33.33 Pull, Junction and Terminal Boxes 28 26 05 33.36 Outlet Boxes 29 26 05 43.13 Underground Duct banks 30 26 05 53 Electrical Identification for Electrical Systems 31 26 22 13.23 Dry Type Transformers 32 26 27 26.13 Receptacles 33 26 27 26.23 Snap Switches 34 26 28 16.33 Disconnect Switches 35 26 29 13.26 Combination Magnetic Motor Starters 36 26 43 00 Transient Voltage Surge Suppression 37 33 01 38 Polymorphic Resin Lining System

45 ARTICLE SP-4 MODIFICATIONS TO THE STANDARD TECHNICAL

46 SPECIFICATIONS

00 75 00-5

2 1. 01 57 00 CONTROL OF WORK

4 1.01 – SCOPE OF WORK

6 F. Public Utilities and Structures – add the following paragraphs:

8 6. Coordination with Operations Department is required on all 9 facilities to be shut down and/or by-passed. By-pass

10 pumping shall be as described in this Section and other 11 Sections of the Contract documents.

12 7. When pumping and by-passing is required or ordered by the 13 Engineer, the Contractor shall supply the pumps, conduits, 14 and other equipment to divert the flow of sewage around the 15 pump station, manhole, or pipeline on which work is to be 16 performed. The by-pass system shall be of sufficient 17 capacity to handle existing peak flow plus additional flow that 18 may occur during a rainstorm. The Contractor will be 19 responsible for furnishing the necessary labor and 20 supervision to set up and operate the pumping and by- 21 passing system.

22 8. When flow in a sewer line is plugged, blocked, or by-passed, 23 sufficient precautions must be taken to protect the sewer 24 lines from damage that might result from sewer surcharging.

25 Further, precautions must be taken to insure that sewer flow 26 control operations do not cause flooding or damage to public 27 or private property. Under no circumstances shall sewage 28 be discharged into/onto any place other than another sewer 29 manhole, force main or a piece of equipment designed to 30 carry sewage. Any damage caused from the Contractor’s 31 neglect of these precautions is solely the responsibility of the 32 Contractor.

34 1.04 – INSPECTION AND TESTING - Add the following 35 paragraphs:

37 G. Prior to acceptance by the County, a two hour operational test 38 of all pumps, drives, and control systems shall be conducted in 39 the field to determine if the installed equipment meets the 40 purpose and intent of the specifications. Tests shall 41 demonstrate that all equipment Is electrically, mechanically, 42 structurally, and otherwise acceptable; it is safe and in optimum 43 working condition; and conforms to the specified operating 44 characteristics. A written report shall be submitted to the 45 Engineer for review, show pump capacities, control settings, 46 motor amperage and voltage, accessory operation, thorough

00 75 00-6

1 visual inspection and other pertinent information concerning the 2 operation of the pump station.

3 H. The Contractor shall coordinate station start-up with 4 manufacturer’s technical representative and Operations 5 Personnel, when new control panels and/or pumps are 6 supplied. The representative or factory service technician shall 7 for a minimum of one day, inspect the completed installation, 8 calibrate and adjust instrumentation, correct or supervise 9 correction of defects or malfunctions, and instruct Utilities

10 Operations personnel in proper operation and maintenance 11 procedures.

12 I. Prior to acceptance, inspect interior and exterior of pump station 13 for dirt, or damage. Clean or repair accordingly. Remove from 14 the job site all tools, surplus materials, scrap and debris.

15 J. Pump Stations shall not be placed into service prior to approval 16 from the FDEP, where applicable. If operation is delayed, drain 17 water from pumps and piping. Open motor circuit breakers and 18 protect station controls and interior equipment from cold and 19 moisture.

21 1.06 – ADJACENT STRUCTURES AND PROPERTY - Add the 22 following paragraphs:

24 D. Before starting operation notify owners of adjacent 25 property and utilities when prosecution of the Work 26 may affect their property, facilities or use of property.

27 E. When it is necessary to temporarily obstruct access 28 to property, or when a utility service connection will be 29 interrupted, provide notices sufficiently in advance to 30 enable affected persons to provide for their needs.

31 Conform notices to applicable local ordinance and, 32 whether delivered orally or in writing, include 33 appropriate information concerning the interruption 34 and instructions on how to limit inconvenience caused 35 thereby.

37 1.08 – PROTECTION OF WORK AND PUBLIC

39 A. Barriers and Lights – Add item 2 41 2. At the end of each work day the Contractor shall cover or 42 provide protective covers and/or barriers around excavated 43 areas, wet wells, manholes valve vault etc. These barriers 44 are to protect against persons or vehicles accidentally 45 entering excavations, and are to remain in place during 46 periods when construction activities are not in progress.

00 75 00-7

2 1.10 – CLEANING – Add the following paragraph:

4 D. All existing pipe, materials and appurtenance 5 (including abandoned SCADA poles and Turbitrol 6 boxes) removed by the Contractor shall become the 7 property of the Contractor and shall be removed away 8 from the site of the work to an approved disposal site.

9 The exceptions are salvaged pumps and electrical

10 panels, which will become the property of Pinellas 11 County Operations.

14 1.12 – RESTORATION OF PROPERTY - Add the following 15 paragraph:

17 E. The Contractor shall restore the site immediately following 18 rehabilitation of sanitary sewer pumping stations to a 19 condition equal to the condition found preceding the 20 excavation. No payment will be made to the Contractor until 21 restoration is competed.

23 1.15 – SALVAGE OF EQUIPMENT AND MATERIALS

25 A. Existing equipment and materials removed and not shown or 26 specified to be reused as a part of the Work will become the 27 Contractor’s property, unless otherwise stated.

28 B. Existing equipment and materials removed by the Contractor 29 shall not be reused in the Work, except where so specified 30 or indicated.

31 C. Carefully remove in a manner to prevent damage to all 32 equipment and materials specified or indicated to be 33 salvaged and reused or to remain the property of County.

34 Store and protect salvaged items specified or indicated to be 35 reused in the Work. Replace in kind or with new items 36 equipment, materials, and components damaged in removal, 37 storage, or handling through carelessness or improper 38 procedures.

39 D. The Contractor may furnish and install new items, with 40 Engineers approval, instead of those specified or indicated 41 to be salvaged and reused, in which case such removed 42 items will become Contractors property.

45 1.16 WORK BY COUNTY

00 75 00-8

1 A. The County will perform the following activities outside of the 2 pump station in connection with the Work.

4 1. Operation of all existing valves, gates, pumps, 5 equipment and appurtenances that will affect the 6 County’s operation unless specified otherwise.

7 All work required by Pinellas County will be 8 coordinated by the Contractor.

9 B. The Contractor shall conform working hours to those of the

10 County’s staff at the project Site. The Contractor shall 11 obtain advance written approval from the County to extend 12 the working hours beyond those hours.

14 2. 01 57 13 EROSION AND SEDIMENTATION CONTROL

16 5.02 DESIGN APPLICATIONS, replace Paragraph 5.02.D.2 17 with the following:

19 1. Seeding. Disturbed areas along embankments shall be 20 permanently seeded with a mix specified in Section 32 21 92 01, Seeding and Sodding

23 3. 03 10 01 CONCRETE MATERIALS

25 1.02 RELATED SECTIONS, replace Paragraph 1.02A as follows:

27 A. Section 03 45 00 – Precast Concrete Accessories

29 2.08 CONCRETE FORM MATERIALS

31 A. Provide form materials with sufficient stability to 32 withstand pressure of placed concrete without box or 33 deflection.

34 B. Exposed Concrete Surfaces: Acceptable panel type 35 to provide continuous straight, smooth, as-cast 36 surfaces. Use largest practical sizes to minimize form 37 joints.

38 C. Unexposed Concrete Surfaces: Suitable material to 39 suit project conditions.

41 3.02 FORMWORK

43 A. Formwork: Construction so that concrete members 44 and structures are correct size, shape, alignment, 45 elevation and position, complying with ACI 347.

46 B. Provide openings in formwork to accommodate Work

00 75 00-9

1 of other trades. Accurately place and securely 2 support items built into forms.

3 C. Clean and adjust forms prior to concrete placement.

4 Apply form release agents or wet forms, as required.

5 Retighten forms during and after concrete placement 6 if required to eliminate mortar leaks.

8 4. 09 91 00 PAINTING

10 2.01 GENERAL, add the following to the end of Paragraph B:

12 “or Florida Building Code, whichever is more restrictive.”

14 2.01 GENERAL, replace Paragraph E with the following:

16 E. Colors. All colors and shades of colors of all coats of 17 paints and protective costing material shall be as 18 modified/selected by the County. Each coat shall be 19 of a slightly different shade, as directed by the 20 Engineer to facilitate inspections of surface coverage 21 of each coat. Provide custom color to match existing 22 County color code standards where applicable.

25 3.06 PREPARATION FOR PAINTING AND PROTECTIVE

26 COATINGS, add the following:

28 C. Contractor shall test existing paint for adhesion and 29 compatibility with new paints as scheduled.

30 Contractor shall remove non-compatible paints or 31 paints with low adhesion to base material prior to 32 applying new paint systems.

34 5 31 23 33 EXCAVATION AND BACKFILL FOR PIPES

36 3.11 EROSION CONTROL DRAINAGE AND DEWATERING -

37 Add the following:

39 A. Drainage and Dewatering 40 1. Contractor shall provide and maintain adequate 41 drainage and dewatering equipment to remove 42 and dispose of all surface water and ground 43 water entering excavations, or other parts of the 44 work. Each excavation shall be kept dry during 45 sub grade preparation and continually thereafter 46 until the structure to be built, therein is inspected

00 75 00-10

1 by the Engineer and backfill operations have 2 been completed and approved.

3 a. The different working areas of the site shall 4 be kept free of surface water at all times.

5 The Contractor shall install drainage 6 ditches and dikes and shall perform all 7 pumping and other Work necessary to 8 divert or remove rainfall and all other 9 accumulations of surface water from the

10 excavations and fill areas. The diversion 11 and removal of surface water shall be 12 performed in a manner that will prevent the 13 accumulation of water behind temporary 14 structures or at any other locations within 15 the construction area where it may be 16 detrimental.

17 b. Water used for working or procession, 18 resulting from dewatering operations, or 19 containing oils or sediments that will reduce 20 the quality of the water downstream of the 21 point of discharge, shall not be directly 22 discharged. Such waters shall be diverted 23 through a settling basin or filter before 24 being discharged.

25 c. The Contractor will be held responsible for 26 the condition of any pipe, conduit or 27 channel used for drainage purposes and all 28 such pipes, conduits or channels shall be 29 left clean and free of sediment.

30 d. Remove water from excavations as fast as 31 it collects.

32 2. The Contractor shall provide, install and operate 33 sufficient trenches, sumps, pumps, hose, piping, 34 well points, deep wells, etc., necessary to 35 depress and maintain the ground water level 36 below the base of the excavations during all 37 stages of construction operations. The ground 38 water table shall be lowered in advance of 39 excavation, for a sufficient period of time so as 40 to permit dewatering of fine grain soils, and 41 maintained two feet below the lowest sub grade 42 excavation made until the structure has sufficient 43 strength and weight to withstand horizontal and 44 vertical soil and water pressures from natural 45 ground water. The system shall be operated on 46 a 24-hour basis and standby pumping facilities

00 75 00-11

1 and personnel shall be provided to maintain the 2 continued effectiveness of the system. If, in the 3 opinion of the Engineer, the water levels are not 4 being lowered or maintained as required by 5 these Specifications, the Contractor shall install 6 additional or alternate dewatering devices as 7 necessary at no additional cost to the County.

8 a. Elements of the system shall be located so 9 as to allow a continuous dewatering

10 operation without interfering with the 11 construction of the permanent work.

12 Where portions of the dewatering system 13 are located in the area of permanent 14 construction, the Contractor shall submit 15 details of the methods he proposes to 16 construct the permanent Work in this 17 location for the approval of the Engineer.

18 Controls of ground water shall continue 19 until the permanent construction provides 20 sufficient dead load to withstand the 21 hydrostatic uplift of the normal ground 22 water, until concrete has attained sufficient 23 strength to withstand earth and hydrostatic 24 loads, and until all waterproofing work has 25 been completed. Dispose of all water 26 removed from the excavation in such a 27 manner so as not to endanger any portion 28 of the Work under construction or 29 completed. Convey water from the 30 excavations in a closed conduit. Before 31 discontinuing dewatering operations or 32 permanently permitting the rise of the 33 ground water level, computations shall be 34 made to show that any structure affected by 35 the water level rise is protected by backfill 36 or other means to sustain uplift. Use a 37 safety factor of 1.25 when making these 38 computations.

39 b. Dewatering operations shall not be 40 discontinued without the prior authorization 41 of the Engineer.

43 B. Disposal of Water Removed by Dewatering System 44 1. Contractors dewatering system shall be 45 discharged in accordance with State and Federal 46 regulations.

00 75 00-12

1 2. Dispose of all water removed from the 2 excavation in such a manner as not to endanger 3 public health, property, or any portion of the 4 Work under construction or completed.

5 3. Dispose of water in such a manner as to cause 6 no inconvenience to the County, Engineer or 7 others involved in Work about the site.

8 4. Convey water from the construction site in a 9 closed conduit. Do not use trench excavations

10 as temporary drainage ditches.

12 3.12 GENERAL REQUIREDMENTS FOR BACKFILL AND

13 COMPACTION

15 A. Backfill in Pipe Trenches 16 1. Place all backfilling in pipe trenches which are 17 below structures, other pipes, or paved areas, in 18 horizontal layers not exceeding 6-inches in depth 19 and thoroughly compact each before the next 20 layer is placed. In other pipe trenches, compacted 21 layers shall be 6-inches up to the pipe center line 22 and 8-inches thereafter.

23 2. Prior to the installation of pipes which are to be 24 installed in fill sections, place the fill as described 25 herein, until a minimum height of two feet above 26 the soffit of the pipe is reached, unless otherwise 27 required in other Sections. The fill for the trench 28 width shall then be excavated and the pipe 29 installed and backfilled. The remainder of the fill 30 shall then be placed.

31 3. Pipeline trenches may be backfilled prior to 32 pressure testing, but no structure shall be 33 constructed over any pipeline until it has been 34 tested.

35 4. All pipe, except plastic pipe, shall be placed on a 36 minimum 6-inch thick layer of granular 37 embedment material. The granular embedment 38 material shall extend 12-inches above the top of 39 the pipe. CPVC, PVC, HDPE pipes and FRP 40 ducts shall be placed on a minimum 6-inch layer 41 of sand. Sand shall extend to 12-inches above 42 top of pipe and to the trench walls on each side of 43 the pie, unless otherwise noted.

44 5. Embedment materials both below and above the 45 used, and placement and compaction of 46 embedment materials shall conform to the

00 75 00-13

1 following requirements.

2 a. Granular embedment shall be spread and 3 the surface graded to provide a uniform 4 and continuous support beneath the pipe 5 at all points between bell holes or pipe 6 joints. It will be permissible to slightly 7 disturb the finished sub grade surface by 8 withdrawal of pipe slings or other lifting 9 tackle. After each pipe has been graded, 10 aligned, placed in final position on the 11 bedding material and shoved home, 12 sufficient pipe embedment material shall 13 be deposited and compacted under and 14 around each side of the pipe and back of 15 the bell or end thereof to hold the pipe in 16 proper position and to maintain alignment 17 during subsequent pipe jointing and 18 embedment operations. Embedment 19 materials shall be deposited and 20 compacted uniformly and simultaneously 21 on each side of the pipe to prevent lateral 22 displacement. The embedment material 23 shall then be placed and compacted to an 24 elevation 12-inches above the top of pipe.

25 b. Compacted backfill shall be required for 26 the full depth of the trench above the 27 granular pipe embedment material.

28 Where the trench for one pipe passes 29 beneath the trench for another pipe or 30 electrical duct bank, the lower trench shall 31 be compacted to the level of the bottom of 32 the upper trench.

33 c. Each layer of embedment material shall 34 be compacted by at least two complete 35 coverages of all portions of the surface of 36 each lift using approved compaction 37 equipment. One coverage is defined as 38 the conditions reached when all portions 39 of the fill lift have been subjected to the 40 direct contact of the compacting surface 41 of the compactor.

42 d. The method of compaction and the 43 equipment used shall be appropriate for 44 the material to be compacted and shall 45 not transmit damaging shocks to the pipe.

46 e. The degree of compaction required for

00 75 00-14

1 granular embedment is expressed as a 2 percentage of the maximum density 3 obtained by the test procedure presented 4 in ASTM D 698.

6 6. 31 23 34 EXCAVATION AND BACKFILL FOR STRUCTURES

8 3.10 EROSION CONTROL, DRAINAGE AND DEWATERING -

9 Add the following:

11 A. Drainage and Dewatering 12 1. The Contractor shall provide and maintain 13 adequate drainage and dewatering equipment to 14 remove and dispose of all surface water and 15 ground water entering excavations, or other parts 16 of the Work. Each excavation shall be kept dry 17 during sub grade preparation and continually 18 thereafter until the structure to be built, therein is 19 inspected by the Engineer and backfill operations 20 have been completed and approved.

21 a. The different working areas of the site shall 22 be kept free of surface water at all times.

23 The Contractor shall install drainage 24 ditches and dikes and shall perform all 25 pumping and other Work necessary to 26 divert or remove rainfall and all other 27 accumulations of surface water from the 28 excavations and fill areas. The diversion 29 and removal of surface water shall be 30 performed in a manner that will prevent the 31 accumulation of water behind temporary 32 structures or at any other locations within 33 the construction area where it may be 34 detrimental.

35 b. Water used for working or procession, 36 resulting from dewatering operations, or 37 containing oils or sediments that will reduce 38 the quality of the water downstream of the 39 point of discharge, shall not be directly 40 discharged. Such waters shall be diverted 41 through a settling basin or filter before 42 being discharged.

43 c. The Contractor will be held responsible for 44 the condition of any pipe, conduit or 45 channel used for drainage purposes and all 46 such pipes, conduits or channels shall be

00 75 00-15

1 left clean and free of sediment.

2 d. Remove water from excavations as fast as 3 it collects.

4 2. The Contractor shall provide, install and operate 5 sufficient trenches, sumps, pumps, hose, piping, 6 well points, deep wells, etc., necessary to depress 7 and maintain the ground water level below the 8 base of the excavations during all stages of 9 construction operations. The ground water table

10 shall be lowered in advance of excavation, for a 11 sufficient period of time so as to permit dewatering 12 of fine grain soils, and maintained two feet below 13 the lowest sub grade excavation made until the 14 structure has sufficient strength and weight to 15 withstand horizontal and vertical soil and water 16 pressures from natural ground water. The system 17 shall be operated on a 24-hour basis and standby 18 pumping facilities and personnel shall be provided 19 to maintain the continued effectiveness of the 20 system. If, in the opinion of the Engineer, the 21 water levels are not being lowered or maintained 22 as required by these Specifications, the Contractor 23 shall install additional or alternate dewatering 24 devices as necessary at no additional cost to the 25 County.

26 a. Elements of the system shall be located so 27 as to allow a continuous dewatering 28 operation without interfering with the 29 construction of the permanent work.

30 Where portions of the dewatering system 31 are located in the area of permanent 32 construction, the Contractor shall submit 33 details of the methods he proposes to 34 construct the permanent Work in this 35 location for the approval of the Engineer.

36 Controls of ground water shall continue 37 until the permanent construction provides 38 sufficient dead load to withstand the 39 hydrostatic uplift of the normal ground 40 water, until concrete has attained sufficient 41 strength to withstand earth and hydrostatic 42 loads, and until all waterproofing work has 43 been completed. Dispose of all water 44 removed from the excavation in such a 45 manner so as not to endanger any portion 46 of the Work under construction or

00 75 00-16

1 completed. Convey water from the 2 excavations in a closed conduit. Before 3 discontinuing dewatering operations or 4 permanently permitting the rise of the 5 ground water level, computations shall be 6 made to show that any structure affected by 7 the water level rise is protected by backfill 8 or other means to sustain uplift. Use a 9 safety factor of 1.25 when making these

10 computations.

11 b. Dewatering operations shall not be 12 discontinued without the prior authorization 13 of the Engineer.

14 B. Disposal of Water Removed by Dewatering System 15 1. Contractors dewatering system shall be 16 discharged in accordance with State and Federal 17 regulations.

18 2. Dispose of all water removed from the 19 excavation in such a manner as not to endanger 20 public health, property, or any portion of the 21 Work under construction or completed.

22 3. Dispose of water in such a manner as to cause 23 no inconvenience to the County, Engineer or 24 others involved in Work about the site.

25 4. Convey water from the construction site in a 26 closed conduit. Do not use trench excavations 27 as temporary drainage ditches.

30 7. 33 32 00 SUBMERSIBLE WASTEWATER PUMPING STATIONS

32 1.03 OPERATIONS AND MAINTENANCE MANUALS – Add the 33 following:

35 A. Submit separate Operations and Maintenance 36 Manuals for each pump station that received a new 37 control panel. Submit five copies of each manual and 38 one CD-ROM version.

39 B. The content and instructions shall assume operating 40 personnel are familiar with basic pumps, motors, 41 piping and valves.

42 C. Documentation shall be specific to the pump station 43 constructed and collated into functional sections.

44 Each section shall combine to form a complete 45 system manual covering all equipment. Operations 46 and maintenance instructions which rely on vendor

00 75 00-17

1 cut-sheets and literature, which include general 2 configurations, or required operating personnel to 3 selectively read portions of the manual shall not be 4 acceptable.

5 D. Each manual shall contain, at a minimum, the 6 following:

7 1. Functional description of each major component, 8 complete with operating instructions.

9 2. Instructions for operating pumps and pump

10 controls in all modes of operation.

11 3. Calibration and adjustment of equipment for initial 12 start-up, replacement of level control components, 13 or as required for routine maintenance.

14 4. Support data for commercially available 15 components not produced by the station 16 equipment manufacturer, but supplied in 17 accordance with the specifications. This 18 information shall be supported by literature from 19 the prime manufacturer and incorporated as 20 appendices.

21 5. Electrical schematic diagram of the pump station 22 circuits shall be in accordance with NMTBA and 23 JIC standards. Schematics shall illustrate, to the 24 extent of authorized repair, pump motor branch, 25 control and alarm system circuits including 26 interconnections. Wire numbers and legend 27 symbols shall be shown. Schematic diagrams for 28 individual components, not normally repairable by 29 the station operator, need not be included. Details 30 for such parts shall not be substituted for an 31 overall system schematic. Partial schematics 32 block diagrams, and simplified schematics shall 33 not be provided in lieu of and overall system 34 diagram.

35 6. Mechanical layout drawing of the pump station 36 and components, prepared in accordance with 37 good commercial practice shall provide installation 38 dimensions and location of all pumps, motors, 39 valves and piping. Existing equipment that is 40 typical to a pump station but not necessarily a part 41 of the upgrade is to be included and dimensioned 42 on the mechanical layout drawing.

44 2.01 STRUCTURES - Add Paragraph 2.01 G with the following:

46 G. Liner type shall be as specified in station NTP Work

00 75 00-18

1 Release, unless otherwise directed by the Engineer.

3 2.02B SEWAGE PUMPS AND MOTORS

5 Add the following sentence to the end of the paragraph.

7 “Pumps shall be CP or N-Series pumps as manufactured by 8 Flygt.

11 2.02C ACCESS FRAME AND GUIDE BARS

13 At the beginning of the first sentence in Paragraph 2.02.C 1 14 add the text “Where shown,”

16 2.02D VALVES AND PIPING

18 Delete Paragraph 2.02.D.4 in its entirety and renumber the 19 remaining paragraphs.

21 Add Paragraph 2.02.D.5 as follows:

23 5. All pipe and appurtenant materials used in the 24 Pinellas County Sewer System shall be as 25 specified in the latest version of the Pinellas 26 County Material Specification Manual at the time 27 of Contract Agreement.

29 2.02E PUMP STATION CONTROL PANEL SPECIFICATIONS

31 Modify Paragraph 2.02.E.2 to read as follows:

33 “The dead front door shall contain the following labeling:

34 Access to circuit breakers, HAND-OFF-AUTO-RTU pump 35 selector switches with green light for auto, yellow level 36 indicator pilot lights, red pump run pilot light, red alarm pilot 37 light, maintenance switch with yellow pilot light, phase 38 monitor test switch; green Moscad/ ACE control enabled 39 light and a 20 NEMA 5-20R, 125 volt, 20 amp GFI 40 receptacle with Type 302 stainless steel cover. All indicator 41 lights shall be lamp trade number (1819) or LED same 42 base.” The panel shall have sunshields and white powder 43 coating when specified.

45 Add the following sentence to the end of Paragraph 2.02.E.2

00 75 00-19

1 “See detailed electrical specification 26 27 26.13, 2 Receptacles, and 26 05 33.36, Outlet Boxes.”

4 Add to the end of Paragraph 2.02E.3 the following Manual 5 Transfer Switch description.

7 “The manual transfer switch shall include the following 8 requirements:

10 MANUAL TRANSFER SWITCH

12 A. Description: The transfer switch shall be 100 percent 13 rated for continuous duty and suitable for use in 14 emergency situations. Apply as defined in UL 1008 for 15 continuous loading and total system transfer, including 16 tungsten filament lamp load not exceeding 30 percent of 17 switch ampere rating, unless otherwise indicated. The 18 transfer switch shall be positively and reliably interlocked 19 to prevent both sources from being simultaneously 20 connected to the load unless intended.

21 B. Type: Molded case circuit breakers to effect the transfer 22 of two separate power sources to a single load. Molded 23 case circuit breakers are mechanically interlocked 24 through a walking beam mechanism which is located on 25 the rear of the base plate. This mechanism is a fulcrum 26 and lever device which positively prevents both molded 27 case switches or circuit breakers from being in the ON 28 position simultaneously. It provides a “Fail-Safe” design.

29 C. Rating: Service Entrance Rated. The complete manual 30 transfer switch shall be properly labeled and UL listed as 31 suitable for use as service entrance equipment. Also 32 included shall be an over current trip on service source, 33 lock out – tag out provisions, Ground bonding, 34 appropriate markings and service entrance disconnecting 35 device.

36 D. Manufacturers: Provide products of one of the following:

37 1. Lake Shore Electric 38 2. Cutler-Hammer 39 3. Square –D 40 4. Or approved equal 42 Modify the last sentence in Paragraph 2.02.E.4 to read as 43 follows:

45 “All control wiring shall be surface mounted, void of splices, 46 have appropriate color coded or numbered terminal ends, 00 75 00-20

1 sized 14 minimum, type XHHW-2 or equivalent, rated for six 2 hundred (600) volts, stranded tinned copper conductor 3 colors are as follows.”

5 Modify Paragraph 2.02.E.6 to read as follows:

7 All three-phase panels shall have an electronic solid state 8 phase monitor and use pin wiring configuration compatible 9 with current stations as follows: 240 volt systems shall use

10 the Diversified Electronics 8 pin plug-in type; The loss of any 11 phase shall actuate the battery alarm and open the 120 volt 12 feed from the load side of the control breaker. This phase 13 loss shall disconnect the 120 volt feed control section. The 14 loss of any phase shall disconnect the 120 volt feed from the 15 RTU breaker to the RTU unit through the spare set of 16 normally open contacts of the PMX relay and open the 120 17 volt feed to the RTU panel.

18 480 volt systems shall use Diversified Electronics hard-wired 19 surface mounted unit: The loss of any phase shall actuate 20 the battery alarm and open the 120 volt feed from the load 21 side of the control breaker. The loss of any phase shall 22 disconnect the 120 volt feed to the control section. The loss 23 of any phase shall disconnect the 120 volt feed from the 24 RTU breaker to the RTU unit through the spare set of 25 normally open contacts from the phase monitor to open the 26 120 volt feed to the RTU panel.

28 Modify Paragraph 2.02.E.7 to read as follows:

30 “Control circuitry shall be designed as per Pinellas County 31 Utilities standards. A solid state lightning surge protector 32 with a clamping time of ten (10) nanoseconds shall be 33 Innovative Technologies PTX 080-3Y 101 (208v, 3ph), PTX 34 080-1P 201 (230v, 1ph), PTX 080-3D 101 (230v Delta, 3ph) 35 or PTX 080-3Y 201 (480v, 3ph) and be weatherproof for 36 external mounting. The IT Protector surge protector shall be 37 mounted on the outside of the main disconnect on the load 38 side and have in line fuses for each phase. A ¾” conduit 39 shall be installed from the IT Protector to the RTU to provide 40 signal wire for surge unit failure alarm. A NEMA 4 stainless 41 steel, fusible, horsepower rated disconnect switch shall be 42 provided and drilled for padlock security in the “OFF” 43 position. The disconnect shall isolate the non-fusable utility 44 power from the control panel. A second similar disconnect is 45 required before the meter in 480 volt applications by the 46 power company. An 11” x 17” schematic and pump data 47 sheet shall be permanently affixed to the interior of the 48 enclosed door. Lamination shall be provided to protect the

00 75 00-21

1 data sheet. A stainless steel NEMA 4x junction box 2 (minimum 24” x 24” x 8”) with bottom or side hinged cover 3 shall be installed between the control panel and the wet well.

4 It shall house the terminal strip, which shall be stainless 5 steel, mounted on an aluminum din rail, float, RTU and 6 sensor connections (24), the pumps leads shall use a 7 Square D power distribution block. There shall be thirty-six 8 (36) inches minimum clearance between the bottom of the 9 junction box and slab top elevation.”

11 Modify the third sentence in Paragraph 2.02.E.8 to read as 12 follows:

13 “The junction box shall have one 2-inch PVC Schedule 80 14 (minimum size) conduit for each pump, and one 2-inch PVC 15 Schedule 80 (minimum size) conduits for the floats.”

17 Modify the third sentence in Paragraph 2.02.E.10 to read as 18 follows:

19 “Ground resistance shall test at or below 5 OHMS, un- 20 bonded.

22 Modify the first sentence in Paragraph 2.02.E.12 to read as 23 follows:

25 “All conductors, other than those supplied from the power 26 company shall be 600 volt rated stranded copper XHHW-2 27 insulation or equivalent and be run in PVC Schedule 80 28 conduit or as per code requirements.”

30 2.02 G WIRING

32 Modify the last sentence in Paragraph 2.02.G.1 to read as 33 follows:

35 “All conductors shall be color coded 4 AWG or larger 600 36 volt type XHHW-2 and shall be run in PVC Schedule 80 37 conduit.”

39 2.02 H PAINTING

41 Add Paragraph 2.02.H.2 as follows:

43 “2. Refer to Section 09 91 00, Painting, for additional 44 requirements.”

45 ADD 2.02 J LEVEL SENSORS

46 1. The level sensors will be designated by as one of the

00 75 00-22

1 following:

2 A. Siemens Milltronics HydroRanger 200 3 P/N 7ML50341AAO1 with sensor #XPS- 4 15 with up to 50’ of sensor cable and will 5 include Phoenix Contact Trabtech ST 6 Plug P/N PT1x2-24DC-ST and base P/N 7 PT1x2-BE.

8 B. Greyline SLT 5.0 with sensor model 9 #PZ34 with up to 50’ of sensor cable and

10 will include Stahl Intrinsic safety barrier 11 rated 17.5V max, 95 ohms min., Model # 12 9001/02-175-200-10.

13 C. DCC’s bubbler level monitor system.

14 All level sensors will be redundant to the float system.

16 3.02 INITIAL START-UP AND OPERATOR INSTRUCTION

18 Replace Paragraph 3.02.A with the following:

20 A. Contractors shall provide the services of a factory-trained 21 service technician for a minimum of one day. The 22 factory-trained service technician shall inspect the 23 completed installation, calibrate and adjust 24 instrumentation, correct or supervise correction of 25 defects of malfunctions, and instruct County personnel in 26 proper operation and maintenance procedures.

28 Add Paragraph 3.02.B as follows:

30 B. Contractor shall coordinate station start-up with 31 manufacturer’s technical representative and the 32 Engineer.

34 Add Paragraph 3.02.C as follows:

36 C. Prior to acceptance, the Contractor shall inspect the 37 interior and exterior of the pump station for dirt or 38 damage. The Contractor shall clean or repair 39 accordingly. The Contractor shall remove from the job 40 sites all tools, surplus materials, scrap and debris.

42 Add Paragraph 3.02.D as follows:

44 D. The Contractor shall ensure that the pump stations shall 45 be available for service immediately upon acceptance by 46 the Engineer.

00 75 00-23

Delete APPENDIX 33 32 00;

A revised schedule has been inserted into the plan set.

4 8. 40 95 01 WASTEWATER PUMP STATION SCADA REMOTE

5 TELEMETRY UNIT (RTU)

6 2.10 INSTRUMENT SURGE PROTECTION

8 Replace Paragraph 2.10.A with the following:

10 D. All instrumentation will be protected by plug-in surge 11 suppression with bases mounted in the RTU. Surge 12 Suppression shall be as manufactured by IT Protector 13 (Innovative Technology) model # HS-250-10A, or County 14 approved equal.

00 75 00-24

1 TECHNICAL SPECIFICATION CHECKLIST

2 Project Name: SANITARY SEWER PUMP STATION REPAIR, REHABILITATION, &

3 IMPROVEMENTS

4 Project Number: 000964A 5 The following sections of the Standard Technical Specifications will apply to this 6 contract if marked “X” as shown below:

00 75 00 X Special Provisions 01 32 33 Color Audio-Video Construction Records 01 35…