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Maxson WWTF GMP #4/Package 2B Addendum No. 2
ADDENDUM NO. 2
To: All Bidders
Date: September 4, 2020
Reference: Maxson Wastewater Treatment Facility Upgrades – GMP #4 / Package 2B
08/18-19/2020 Advertisement
Subcontractor Packages: Site Work, Yard Piping, Concrete, Plant Construction,
Electrical
BIDS DUE: September 29, 2020 @ 2:00PM CST
Equipment Packages: GMP #4/Package 2B: Centrifugal Blowers, Weir-Slide
Gates and Electrical Gear
GMP #5/Package 3: FRP Duct and Covers
BIDS DUE: September 22, 2020 @ 2:00PM CST
The following changes, additions, and clarifications are hereby made part of the Purchase Order
Documents for the above referenced Project and shall be taken into account in the preparation of all
Bids and the execution of all Work.
As stated in the Request for Proposal, the Bid form is required to be submitted with your proposal along
with confirmation of acceptance to terms and conditions. ANY exceptions to the terms and conditions
MUST be specifically stated, line by line, and may render your quotation non-responsive.
ATTACHMENTS
The following attachments are included with this addendum:
1. Exhibit A – Attachment 1 – #7 Plans and Specifications
2. Pre-Bid Meeting Agenda
3. Pre-Bid Meeting Attendees List
4. 15050 Piping General Requirements
5. 15064 Plastic Pipe and Fittings
6. 16492 Low Voltage Automatic Transfer Switches
7. GS-C-212 RAS REAERATION BASIN, BLOWER BUILDING AND IPAS DEMO PLAN
Maxson WWTF – Addendum #2
September 4, 2020
Page 2
Maxson WWTF GMP #4/Package 2B Addendum No. 2
8. GS-C-349 24” RAS REAERATION BASIN TIE INS (PACKAGE 2B)
9. GS-C-350 RAS REAERATION BASIN, IPA AND BLOWER BUILDING YARD PIPING SITE PLAN
ITEM 1. REQUEST FOR PROPOSAL (RFP)
CHANGES TO THE CONTRACT SPECIFICATIONS ARE AS FOLLOWS:
1. In the bid form, for all bid packages, replace: Exhibit A – Attachment 1 – Item #7 Plans and
Specifications with the attached Exhibit A – Attachment 1 – Item #7 Plans and Specifications.
2. For all bid packages in the entire RFP documents, replace State Revolving Fund (SRF) with WIFIA.
3. For all bid packages in the entire RFP documents, replace GMP-4/Package 2A with GMP-
4/Package 2B.
ITEM 2. PROJECT MANUAL
Changes to the contract specifications are as follows:
1. TABLE OF CONTENTS to include the following specification sections:
• Section 15050 Piping General Requirements
• Section 15064 Plastic Pipe and Fittings
• Section 16492 Low Voltage Automatic Transfer Switches
2. SECTION 15050 – Piping General Requirements
• Add in its entirety
3. SECTION 15064 – Plastic Pipe and Fittings
• Add in its entirety
4. SECTION 16492 – Low Voltage Automatic Transfer Switches
• Add in its entirety
5. SECTION 16481 – Medium Voltage Motor Control Center
• Part 2: Add Paragraph 2.09 as follows:
“2.09 MIMIC PANELS
A. Provide mimic panel for remote operation and viewing of MCC devices and information.
Maxson WWTF – Addendum #2
September 4, 2020
Page 3
Maxson WWTF GMP #4/Package 2B Addendum No. 2
1. Mimic panel shall consist of a NEMA 1 enclosure with touchscreen suitable for wall
mounting remotely from MCC.
2. Mimic panel shall allow operators as a minimum the following controls:
a. Open/close all breakers and open/close all motor starter
disconnects/contactors.
b. View detailed information for each breaker, starter, and relay/trip unit.
c. View power monitor information (voltage, current, kW, KVA, KWH, power
factor, frequency, peak demand, harmonics) for each monitor.
d. Configure/monitor alarms for devices.
e. Initiate transfer scheme and operate any other switches as would be
possible at MCC enclosure.
3. Communicate with MCC and plant-wide SCADA system through Modbus TCP
protocol.”
ITEM 3. PLANS
Revised versions are attached for the following contract drawings:
GS-C-212 RAS REAERATION BASIN, BLOWER BUILDING AND IPAS DEMO PLAN
GS-C-349 24” RAS REAERATION BASIN TIE INS (PACKAGE 2B)
GS-C-350 RAS REAERATION BASIN, IPA AND BLOWER BUILDING YARD PIPING SITE PLAN
Clarifications (Questions and Answers)
1. The Davis-Bacon wage rates were not included with 02-5002. Please provide the applicable
wage rates.
• The latest Davis Bacon Wage Rates for Shelby County can be found at this website:
https://www.wdol.gov/dba.aspx, “TN”, “Shelby County", "Heavy". The wage
determination will be the wage determination in place at the time the subcontractor
submits their bid.
2. Will there be third party commissioning or are all aspects of NETA testing, relay
commissioning, ATO testing to be performed by the switchgear manufacturer.
• Per 16950-1.01A, contractor shall engage the services of an independent 3rd party
testing firm.
3. May we have the following information for the T.E. Maxson GMP #4/2B Concrete 03-0002 Bid?
Davis-Bacon wage rates.
• See answer to question #1.
Maxson WWTF – Addendum #2
September 4, 2020
Page 4
Maxson WWTF GMP #4/Package 2B Addendum No. 2
4. May we have the following information for the T.E. Maxson GMP #4/2B Plant Construction 11-
0001 Bid? Davis-Bacon wage rates.
• See answer to question #1.
5. May I please get the plan holders list for the TE Maxon WWTF project that bids on 9/22?
• We do not have a plan holder list however attached is the pre-bid meeting list of attendees.
6. How much are the liquidated damages for 02-5002?
• Liquidated Damages for all packages are $1,000.00 per day.
7. Please confirm the mailing address for bid packages due September 29, 2020. The
Advertisement for Bids notes proposals shall be shipped to: 2690 Plant Road, Suite 101
Memphis, TN 38109
• Yes, confirmed.
8. What is the SFR loan number for the following project: T.E. Maxson WWTF Process Upgrade
Project – City of Memphis TN
• GMP-4/Package 2B is not funded by SRF. Therefore, there is no SRF loan number for this
package.
9. We are a Structural & Misc. Steel provider and are interested in bidding this project. Has the
Structural & Misc. Steel package already bid for this project yet?
• There is not a structural and miscellaneous steel separate package. This scope of work is
included under the Plant Construction subcontractor package.
10. Please clarify which DBE source listings we may use on the Package 2B project. The ATB
indicates we are to use only the City of Memphis EBO list; however, Exhibit K – Attachment 3
indicates that we may also use the Governor’s Diversity Business Office, TN DOT, and CCR DBE
Directories for sourcing.
• City of Memphis EBO list.
Maxson WWTF – Addendum #2
September 4, 2020
Page 5
Maxson WWTF GMP #4/Package 2B Addendum No. 2
11. The yard piping RFP contains a list of specifications related to the contract. Sections 02605,
02608, 02613, 15050, 15064 and 15891 are not included in volumes 1 and 2 of the project
specifications. There may be other sections, but these are a few we noted as missing.
• Sections 02605, 02608, 02613 and 15891 are not applicable to this GMP. Sections 15050
and 15064 are included in this Addendum No. 2.
12. What is the project estimate for 02-5002? We have to provide our bonding company with this
information.
• This is confidential information that cannot be shared at this time.
13. All above grade plant water lines (EW) shall be insulated per Section 15250.
14. Reference drawing GS-C-212 – Where the existing 24” RAS connects to the 102” pipe, there is a
notes that reads “Close 24” RAS valves cap pipe immediately west of valve”. We understand
the need to close these valves when connecting the 24” RAS bypass to the existing RAS but
why or when would the pipe be capped?
• The reason to cap these lines is to make the disconnect permanent and eliminate the risk of
a valve leaking or being inadvertently opened.
15. Reference drawing GS-C-212 – The note to install linestops to the 24” RAS to the filters reads
“linestop and cap”. After the linestop is installed, is the pipe to be cut and capped with a PCCP
cap?
• A PCCP cap is acceptable.
16. Reference drawing GS-C-212 – When the 24” bypass is installed and a portion of the 24” RAS
removed there will need to be a cap or plug installed in the tee. Is a ductile iron cap or plug
sufficient? This is the location where the linestops were shown on the original drawing.
• A DI cap or plug is acceptable.
17. Reference drawing GS-C-349 – Can the 24” RAS piping in phase 1 be installed before the Re-
aeration structure is complete? The sequencing in steps 1 thru 4 indicate that it can but the
sequence in section 01014-1.03.B.5.e states the Owner will have the ability to use either the
western or eastern RAS line during construction of the Re-aeration basin.
• Reference revised drawing GS-C-349 attached
Maxson WWTF – Addendum #2
September 4, 2020
Page 6
Maxson WWTF GMP #4/Package 2B Addendum No. 2
18. Reference GS-C-349 – Step 3 makes reference to note 4. Please confirm this should read “note
3”.
• Reference revised drawing GS-C-349 attached
19. Reference specification 16481, 3.03.C and D. Will there be third party commissioning or are all
aspects of NETA testing, relay commissioning, ATO testing to be performed by the switchgear
manufacturer?
• Per 16950-1.01A, contractor shall engage the services of an independent 3rd party testing
firm.
20. Reference specification 16481, 2.06. Is the SCADA provider responsible for programming the
SEL-3530 RTAC or is it to be performed by the switchgear manufacturer? Please also clarify
the list of data of points to be monitored.
• Switchgear/MCC manufacturer shall program the SEL-3530 RTAC in coordination with plant
SCADA system. The following points shall be monitored:
− Main and tie breaker status (open, closed, tripped)
− For each power meter (mains and feeders):
(3) Voltages – Vab, Vbc, Vca
(3) Current – Ia, Ib, Ic
KW
KVA
KWH
Power factor
Frequency
Peak demand
Total Harmonic Distortion
Total Harmonic Demand
− Transfer scheme in Auto/Manual status
− Feeder SEL/starter status for each motor (running, off, RVSS fault, SEL trip, RVSS
on/off selector switch status, ESTOP engaged)
− Bus differential status for each bus
− Motor current differential status for each motor
• SEL 3530 RTAC shall also send signals to MCC-305N/306E Mimic panel as shown on riser
diagram. Mimic panel shall be provided by MCC 305N/306E equipment supplier.
Maxson WWTF – Addendum #2
September 4, 2020
Page 7
Maxson WWTF GMP #4/Package 2B Addendum No. 2
ITEM 4. TERMS AND CONDITIONS
A signed acknowledgement of this addendum must be received by the Construction Manager prior to
the Bid due date and hour as mentioned in this Addendum No. 2. Signature on this Addendum does not
constitute your signature on the original bid document. The original bid document must be signed also.
Yaribell Hernandez, PE, DBIA
Vice President, Sr. Project Manager
CDM Constructors Inc.
Name of Firm: ___________________________________________________________
Signature and Title: _______________________________________________________
Date: __________________________________________________________________________
7. Plans and Specifications
Definition of Parties
The text of the technical documents contained herein shall be deemed to be modified with respect to the
identification of parties as follows:
The term "DN/CMAR" or “Engineer” or “Construction Manager” or "Owner" shall mean "CONTRACTOR".
The term “Contractor” shall mean "SUBCONTRACTOR".
Technical Document Order of Precedence
In case of conflict in the technical documents, the following priority, in descending order shall govern:
Exhibit C - Supplementary Terms and Conditions
Data / Specification Sheets
Project Specific Specifications and Standards
Referenced Industry Standards (such as ANSI, ASME, etc.)
Drawings
Approved SUBCONTRACTOR submitted drawings or documents
Any conflict identified by SUBCONTRACTOR shall be brought to the attention of the CONTRACTOR for
clarification and confirmation prior to commencement of Work.
The following contract plans, specifications, drawings, and documents are incorporated into the Work.
PROJECT SPECIFICATIONS
Section Description Date
DIVISION 1 GENERAL REQUIREMENTS
01010 Summary of Work May 2020
01011 Site Conditions May 2020
01014 Construction Sequence May 2020
01015 Contractor’s Use of Premises - Supplemental Page date 05/02/17 May 2020
01045 Cutting, Coring, and Patching May 2020
01170 Special Provisions May 2020
01200 Project Meetings May 2020
01300 Submittals - Supplemental Page date 05/02/17 May 2020
01310 Construction Scheduling - Supplemental Page date 05/02/17 May 2020
01381 Audio Video Recording May 2020
01400 Quality Control May 2020
01410 Testing and Testing Laboratory Services May 2020
01445 Pipeline Testing and Cleaning - Supplemental Page dated 09/22/17 May 2020
01465 Equipment Testing and Startup - Supplemental Page date 05/02/17 May 2020
01480 Tightness Testing of Liquid Retaining Structures - Supplemental Page
dated 04/23/20
May 2020
01500 Temporary Facilities May 2020
01560 Site Safety and Security Measures - Supplemental Page date 05/02/17 May 2020
01580 Project Identification and Signs May 2020
01600 Delivery, Storage, and Handling May 2020
01710 Cleaning May 2020
01720 Project Record Documents May 2020
01730 Operating and Maintenance Data May 2020
Exhibit A - Attachment 1
Section Description Date
01740 Warranties and Bonds May 2020
DIVISION 2 CIVIL AND SITE WORK
02050 Demolition and Modifications - Supplemental Page date 05/02/17 May 2020
02100 Site Preparation May 2020
02140 Dewatering and Drainage May 2020
02200 Earthwork May 2020
02221 Trenching, Backfilling and Compaction May 2020
02223 Ground Improvement System - Supplemental Page dated 02/25/20 May 2020
02230 Granular Fill Materials - Supplemental Page dated 09/22/17 May 2020
02270 Erosion and Sedimentation Control May 2020
02311 Excavation Support and Protection May 2020
02510 Asphalt Paving May 2020
02515 Concrete Walkways May 2020
02616 Ductile Iron Pipe and Fittings – Supplemental Page dated 09/22/20 May 2020
02622 Polyvinyl Chloride (PVC) Gravity Sewer Pipe May 2020
02623 Polyvinyl Chloride (PVC) Pressure Pipe May 2020
02625 Centrifugally Cast Fiberglass Reinforced Pipe May 2020
02640 Valves, Hydrants and Appurtenances May 2020
02930 Loaming and Sodding May 2020
DIVISION 3 CONCRETE
03100 Concrete Formwork – Supplemental Page dated 01/06/20 May 2020
03200 Concrete Reinforcement – Supplemental Page dated 01/06/20 May 2020
03250 Concrete Joints and Joint Accessories May 2020
03300 Cast-In-Place Concrete – Supplemental Page dated 01/06/20 May 2020
03350 Concrete Finishes May 2020
03390 Under-Slab Vapor Retarders May 2020
03420 Precast, Prestressed Concrete May 2020
03600 Grout – Supplemental Page dated 01/06/20 May 2020
03740 Modifications to Existing Concrete May 2020
03741 Concrete Repairs- Supplemental Page date 05/02/17 May 2020
03800 Concrete Electrical Raceway Encasement May 2020
DIVISION 4 MASONRY
04200 Unit Masonry May 2020
DIVISION 5 METALS
05500 Miscellaneous Metals – Supplemental Page dated 07/03/19 May 2020
DIVISION 6 WOOD AND PLASTICS
06100 Rough Carpentry May 2020
DIVISION 7 ROOFING
07115 Bituminous Dampproofing May 2020
07550 Modified Bitumen Roofing May 2020
07620 Sheet Metal Flashing May 2020
07710 Roof Specialties May 2020
07900 Joint Sealants May 2020
DIVISION 8 DOORS AND WINDOWS
08220 Fiberglass Reinforced Plastic Doors and Frames May 2020
08331 Overhead Coiling Doors – Without Vision Panels May 2020
Section Description Date
08332 Overhead Coiling Doors – With Vision Slots May 2020
08710 Door Hardware May 2020
08911 Wall Louvers May 2020
08952 Fiberglass-Sandwich-Panel Assemblies May 2020
DIVISION 9 FINISHES
09901 Surface Preparation and Shop Prime Painting May 2020
09902 Painting – Supplemental Page dated 09/22/17 May 2020
DIVISION 10 ARCHITECTURAL
10140 Signage May 2020
10520 Fire Protection Specialties May 2020
DIVISION 11 EQUIPMENT
11282 Slide Gates, Weir Gates, Stop Plates, And Stop Logs May 2020
11354 Fiberglass Baffles – Supplemental Page dated 09/22/17 May 2020
11371 Single Stage Centrifugal Blowers May 2020
11375 Disc-Type Fine Bubble Diffusers – Supplemental Page dated 09/22/17 May 2020
DIVISION 12 FURNISHINGS (NOT USED)
DIVISION 13 SPECIAL CONSTRUCTIONS
13300 Instrumentation and Control – General Provisions- Supplemental Page
date 07/03/19
May 2020
13302 Testing May 2020
13305 Control Descriptions – Supplemental Page dated 07/03/19 May 2020
13311 DCS Controller Hardware and Software May 2020
13320 Control and Data Network Equipment – Supplemental Page dated
07/03/19
May 2020
13321 Fiber Optic Cabling and Equipment May 2020
13330 Control Panel Enclosures and Panel Equipment – Supplemental Page
dated 07/03/19
May 2020
13340 Instruments – Supplemental Page dated 07/03/19 May 2020
DIVISION 14 CONVEYING SYSTEMS
14630 Overhead Bridge Cranes May 2020
DIVISION 15 MECHANICAL
15072 Ductile Iron Pipe and Fittings – Supplemental Page dated 09/22/17 May 2020
15100 Valves- Supplemental Page date 07/13/17 May 2020
15101 Gate and Valve Actuators – Supplemental Page dated 07/03/17 May 2020
15120 Piping Specialties-Supplemental Page date 07/13/17 May 2020
15140 Pipe Hangers, Support and Restraints May 2020
15250 Thermal Insulation May 2020
DIVISION 16 ELECTRICAL
16000 Electrical General – Provisions- Supplemental Page date 05/02/17 May 2020
16015 Power System Study- Supplemental Page date 07/03/19 May 2020
16110 Raceways, Boxes, Fittings and Supports May 2020
16120 Wires and Cables (600 Volt Maximum) – Supplemental Page dated
07/13/17
May 2020
16121 Medium Voltage Cables May 2020
16141 Wiring Devices May 2020
16150 Electric Motors May 2020
Section Description Date
16151 Medium Voltage Induction Motors May 2020
16191 Miscellaneous Equipment May 2020
16192 Surge Protective Devices May 2020
16431 Pad Mounted Transformer(s) May 2020
16470 Panelboards May 2020
16480 Low Voltage Motor Control Center(s) – Supplemental Page dated
09/22/17
May 2020
16481 Medium Voltage Motor Control Center May 2020
16500 Lighting System May 2020
16502 Lightning Protection System May 2020
16600 Underground Systems May 2020
16660 Grounding System May 2020
16920 Walk-In Electrical Enclosure – Supplemental Page dated 09/22/17 May 2020
16950 Electrical System Testing and Settings May 2020
PROJECT DRAWINGS
Drawing
No
Sheet No. Description Date
- - COVER MAY 2020
1 of 134 GP-G-3B DRAWING INDEX MAY 2020
2 of 134 GP-G-5 GENERAL NOTES MAY 2020
3 of 134 GP-G-6 GENERAL LEGEND AND SYMBOLS MAY 2020
4 of 134 GP-G-7 GENERAL ABBREVIATIONS MAY 2020
5 of 134 GP-G-8 OVERALL SITE PHASING PLAN MAY 2020
6 of 134 GP-C-1 CIVIL/SITE LEGEND AND SYMBOLS MAY 2020
7 of 134 CP-C-2 CIVIL/SITE NOTES MAY 2020
8 of 134 GP-A-1 BLOWER BUILDING ARCHITECTURAL LEGENDS AND
SYMBOLS
MAY 2020
9 of 134 GP-S-1 STRUCTURAL NOTES MAY 2020
10 of 134 GP-M-1 MECHANICAL NOTES MAY 2020
11 of 134 GP-M-2 PIPING LEGEND, SYMBOLS, NOMENCLATURE AND
TESTING
MAY 2020
12 of 134 GP-M-3 VALVE LEGEND AND SYMBOLS MAY 2020
13 of 134 GP-M-4 PROCESS EQUIPMENT LEGEND AND SYMBOLS MAY 2020
14 of 134 GP-M-5 PROPOSED HYDRAULIC PROFILE MAY 2020
15 of 134 GP-M-6 PROPOSED HYDRAULIC PROFILE FOR EFFLUENT
PUMPING STATION
MAY 2020
16 of 134 GP-M-7 EXISTING PROCESS FLOW DIAGRAM MAY 2020
17 of 134 GP-M-8 PROCESS FLOW DIAGRAM MAY 2020
18 of 134 GP-M-20 GATE SCHEDULE MAY 2020
19 of 134 GP-M-21 VALVE SCHEDULE MAY 2020
20 of 134 GP-E-1 ELECTRICAL LEGEND I MAY 2020
21 of 134 GP-E-2 ELECTRICAL LEGEND II MAY 2020
22 of 134 GP-I-1 INSTRUMENTATION LEGEND I MAY 2020
23 of 134 GP-I-2 INSTRUMENTATION LEGEND II MAY 2020
24 of 134 GP-I-3 SYSTEM ARCHITECTURE PACKAGE 2B MAY 2020
25 of 134 GS-C-100 EXISTING SITE PLAN HORIZONTAL CONTROL MAY 2020
26 of 134 GS-C-101 OVERALL SITE PLAN MAY 2020
27 of 134 GS-C-102 BORING AND SUE LOCATIONS MAY 2020
28 of 134 GS-C-103 BORING AND SUE LOCATION TABLES MAY 2020
29 of 134 GS-C-110 RAS REAREATION BASIN AND ELECTRICAL IPAS SITE PLAN MAY 2020
30 of 134 GS-C-212 RAS REAREATION BASIN AND ELECTRICAL IPAS DEMO
PLAN
MAY 2020
31 of 134 GS-C-325 54" RAS REAERATION BASIN RAS PIPING PLAN AND
PROFILE
MAY 2020
32 of 134 GS-C-326 RAS REAERATION BASIN 48" AIR YARD PIPING PLAN AND
PROFILED
MAY 2020
33 of 134 GS-C-349 24" RAS REAERATION BASIN TIE INS (PACKAGE 2B) MAY 2020
34 of 134 GS-C-350 RAS REAERATION BASIN, IPA AND BLOWER BUILDING
YARD PIPING SITE PLAN
MAY 2020
Drawing
No
Sheet No. Description Date
35 of 134 GS-C-410 PAVING AND GRADING PLAN MAY 2020
36 of 134 GS-C-463 EROSION CONTROL PLAN PKG 2B-PH 1 MAY 2020
37 of 134 GS-C-464 EROSION CONTROL PLAN PKG 2B-PH 2 MAY 2020
38 of 134 GS-C-470 EROSION CONTROL NOTES AND DETAILS MAY 2020
39 of 134 GS-E-1 ELECTRICAL AREA CLASSIFICATION PLAN MAY 2020
40 of 134 RAS-S-1 RAS REARERATION BASIN PLANS MAY 2020
41 of 134 RAS-S-2 RAS REAERATION BASIN SECTIONS MAY 2020
42 of 134 RAS-S-3 RAS REAERATION BASIN DETAILS MAY 2020
43 of 134 RAS-M-1 RAS REAERATION BASIN OVERALL PLAN MAY 2020
44 of 134 RAS-M-2 RAS REAERATION BASIN SECTIONS MAY 2020
45 of 134 RAS-M-3 RAS REAERATION BASIN SECTIONS MAY 2020
46 of 134 RAS-M-4 RAS REAERATION BASIN DETAILS MAY 2020
47 of 134 RAS-M-5 RAS REAERATION BASIN SECTIONS MAY 2020
48 of 134 RAS-M-6 RAS REAERATION BASIN ISOMETRIC MAY 2020
49 of 134 RAS-E-1 RAS REAERATION BASIN ELECTRICAL PLAN MAY 2020
50 of 134 RAS-I-1 P&ID RAS REAERATION BASIN MAY 2020
51 of 134 RAS-A-1 BLOWER BLDG FLOOR PLAN MAY 2020
52 of 134 RAS-A-2 BLOWER BLDG ROOF PLAN, DETAILS MAY 2020
53 of 134 RAS-A-3 BLOWER BLDG ELEVATIONS MAY 2020
54 of 134 RAS-A-4 BLOWER BLDG ELEVATIONS MAY 2020
55 of 134 RAS-A-5 BLOWER BLDG ELEVATIONS MAY 2020
56 of 134 RAS-A-6 BLOWER BLDG SECTIONS MAY 2020
57 of 134 RAS-A-7 BLOWER BLDG WALL SECTIONS, DETAILS MAY 2020
58 of 134 RAS-A-8 BLOWER BLDG MAINTENANCE PLATFORM MAY 2020
59 of 134 RAS-A-9 BLOWER BLDG FOOR & LOUVER SCHEDULE DETAILS MAY 2020
60 of 134 BB-S-1 BLOWER BUILDING – FOUNDATION PLAN MAY 2020
61 of 134 BB-S-2 BLOWER BUILDING – ROOF PLAN MAY 2020
62 of 134 BB-S-3 BLOWER BUILDING – ELEVATIONS MAY 2020
63 of 134 BB-S-4 BLOWER BUILDING – ELEVATIONS MAY 2020
64 of 134 BB-S-5 BLOWER BUILDING – SECTIONS AND DETAILS I MAY 2020
65 of 134 BB-S-6 BLOWER BUILDING – SECTIONS AND DETAILS II MAY 2020
66 of 134 BB-S-7 BLOWER BUILDING – MASONRY DETAILS MAY 2020
67 of 134 BB-S-8 BLOWER BUILDING – BEAM AND COLUMN SECHDULE
DETAILS
MAY 2020
68 of 134 BB-S-9 BLOWER BUILDING – SERVICE LADDER PLANS, SECTIONS
AND DETAILS
MAY 2020
69 of 134 BB-S-10 BLOWER BUILDING – MAINTENANCE PLATFORM PLAN,
SECTIONS AND DETAILS
MAY 2020
70 of 134 BB-S-11 TRANSFORMER PAD PLAN AND SECTION MAY 2020
71 of 134 BB-S-12 BLOWER BUILDING ELECTRICAL INTEGRATED
ELECTRICAL POWER ASSEMBLY IPA FOUNDATION PLAN
MAY 2020
72 of 134 BB-S-13 BLOWER BUILDING ELECTRICAL INTEGRATED
ELECTRICAL POWER ASSEMBLY IPA SECTIONS & DETAILS
MAY 2020
73 of 134 BB-M-1 BLOWER BUILDING PLAN MAY 2020
74 of 134 BB-M-2 BLOWER BUILDING SECTION MAY 2020
Drawing
No
Sheet No. Description Date
75 of 134 BB-P-1 BLOWER BUILDING PLUMBING PLAN MAY 2020
76 of 134 BB-H-1 BLOWER BUILDING HVAC PLAN MAY 2020
77 of 134 BB-E-1 BLOWER BUILDING, IPAs & RAS REAERATION BASIN SITE
PLAN
MAY 2020
78 of 134 BB-E-2 MODIFICATION OVERALL DISTRIBUTINON ONE-LINE
DIAGRAM
MAY 2020
79 of 134 BB-E-3 5KV MOTOR CONTROL CENTER MCC-305N/306E ONE-
LINE DIAGRAM
MAY 2020
80 of 134 BB-E-4 DUCTBANK SECTIONS AND SCHEDULE MAY 2020
81 of 134 BB-E-5 MCC ELEVATION, RISER DIAGRAM, LIGHT FIXTURE
SCHEDULE AND ELEMENTARY DIAGRAMS
MAY 2020
82 of 134 BB-E-6 BLOWER BUILDING ELECTRICAL IPA PLAN MAY 2020
83 of 134 BB-E-7 BLOWER BUILDING POWER PLAN MAY 2020
84 of 134 BB-E-8 BLOWER BUILDING LIGHTING PLAN MAY 2020
85 of 134 BB-I-1 P&ID RAS REAERATION BLOWERS MAY 2020
86 of 134 EB-S-1 TRICKLING FILTER ELECTRICAL IPA FOUNDATION PLAN MAY 2020
87 of 134 EB-S-2 TRICKLING FILTER ELECTRICAL IPA FOUNDATION
DETAILS
MAY 2020
88 of 134 EB-E-1 MCC-301N/302E ONE-LINE DIAGRAM MAY 2020
89 of 134 EB-E-2 PANEL SCHEDULES AND EQUIPMENT ELEVATION MAY 2020
90 of 134 EB-E-3 RAS REAERATION BASIN AND FIBER RISER DIAGRAMS MAY 2020
91 of 134 EB-E-4 TRICKLING FILTER ELECTRICAL IPA BUILDING PLAN MAY 2020
92 of 134 FCS-S-2 FLOW CONTROL STRUCTURE DEMOLITION PLANS,
SECTIONS AND DETAILS
MAY 2020
93 of 134 FCS-S-3 FLOW CONTROL STRUCTURE MODIFICATION PLANS,
SECTIONS AND DETAILS
MAY 2020
94 of 134 FCS-M-3 FLOW CONTROL STRUCTURE DEMOLITION PLAN AND
SECTION
MAY 2020
95 of 134 FCS-M-4 FLOW CONTROL STRUCTURE MODIFICATION PLAN AND
SECTION
MAY 2020
96 of 134 STD-C-1 CIVIL/SITE STANDARD DETAILS I MAY 2020
97 of 134 STD-C-2 CIVIL/SITE STANDARD DETAILS II MAY 2020
98 of 134 STD-C-3 CIVIL/SITE STANDARD DETAILS III MAY 2020
99 of 134 STD-C-4 CIVIL/SITE STANDARD DETAILS IV MAY 2020
100 of 134 STD-C-10 YARD PIPING DETAILS I MAY 2020
101 of 134 STD-C-30 PAVING AND GRADING DETAILS MAY 2020
102 of 134 STD-C-31 PAVING AND GRADING DETAILS II MAY 2020
103 of 134 STD-S-1 STRUCTURAL DETAILS I MAY 2020
104 of 134 STD-S-2 STRUCTURAL DETAILS II MAY 2020
105 of 134 STD-S-3 STRUCTURAL DETAILS III MAY 2020
106 of 134 STD-S-4 STRUCTURAL DETAILS IV MAY 2020
107 of 134 STD-S-5 SPECIAL INSPECTIONS I MAY 2020
108 of 134 STD-S-6 SPECIAL INSPECTIONS II MAY 2020
109 of 134 STD-S-7 SPECIAL INSPECTIONS III MAY 2020
110 of 134 STD-S-8 STRUCTURAL DETAILS V MAY 2020
111 of 134 STD-M-1 PROCESS MECHANICAL STANDARD DETAILS I MAY 2020
Drawing
No
Sheet No. Description Date
112 of 134 STD-M-2 PROCESS MECHANICAL STANDARD DETAILS II MAY 2020
113 of 134 STD-M-3 PROCESS MECHANICAL STANDARD DETAILS III MAY 2020
114 of 134 STD-M-4 PROCESS MECHANICAL STANDARD DETAILS IV MAY 2020
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OTHER ITEMS
Section Description Date
Page 1 of 2
PRE-BID CONFERENCE AGENDA
Project Number: 111641 / 243954
Project Name: Maxson WWTF Upgrades – GMP #4/Package 2B
Subcontractor Packages: Site Work Subcontract, Yard Piping Subcontract, Concrete
Subcontract, Plant Construction Subcontract, Electrical Subcontract
Equipment Packages: Centrifugal Blowers PO, Weir and Slide Gates PO, Electrical
Gear PO
GMP #5/Package 3 Equipment Package: FRP Ductwork and Cover Equipment
Meeting Date: August 25, 2020
Meeting time: 8:00 A.M. CST
Meeting Location: Virtual Microsoft Teams Meeting
+1 857-327-8948 United States, Boston (Toll)
(844) 566-5330 United States (Toll-Free)
Conference ID: 665 618 189#
Project Site: Maxson WWTF, 2690 Plant Road Suite 1, Memphis, TN
For site visits, please coordinate in advance with Project Management Personnel:
Yaribell Hernandez, Alfred Vega, Chris Smith and/or Brian Stacks
Note: “Nothing discussed or said at the pre-bid conference amends the contract documents. Any
noteworthy discussion item or question that warrants a change to the bid documents will be issued
in an addendum. Only an addendum can amend the bid documents.”
Procurement Contacts:
Yaribell Hernandez, CDM Constructors Inc.; [email protected]
Alfred Vega, CDM Constructors Inc.; [email protected]
Larry Oliver, CDM Constructors Inc.; [email protected]
• Introductions of Project Personnel
o Project Manager
o Design Lead
o Electrical Superintendent / APM
o Site Superintendents
o Health & Safety
o QA/QC
o Construction Specialists
o City of Memphis
• GMP #4/Package 2B Brief Project Description
o New CIP 3.5 million-gallon Return Activated Sludge (RAS) Reaeration Basin
Installation of New fine-bubble diffusers and associated equipment and materials for the
aeration system
Page 2 of 2
Parallel ductile iron air conveyance mains inside the tank with associated dropleg piping
and dropleg isolation valves
Installation of a new RAS flow splitter box upstream of the RAS Reaeration Basin
o Flow Control Structure (FCS) Modifications
Installation of the 54-inch RAS Reaeration Basin effluent
Demolition of existing vertical walls in the box culverts under the structure
Installation of a water retaining bulkhead in the center channel of the box culvert
Installation of two new slide gates
o New Blower Building (BB)
Installation of a new masonry Blower Building complete with all associated building
materials and components
Installation of three new 1250 HP single-stage centrifugal blowers
Installation of one new 7-ton bridge crane
Installation of new ductile iron air piping and associated connections and fittings
Installation of three new 36-inch butterfly valves and three new 36-inch dual wafer check
valves.
o New Integrated Power Assembly (IPA) Buildings: Trickling Filter IPA building and Blower
Building IPA building with new slabs-on-grade.
o Yard Piping
New 24-inch RAS piping connections to existing yard piping
Line-stopping/plugging of existing 24-inch RAS piping
New 54-inch RAS Reaeration Basin effluent to the Flow Control Structure
New 36-inch unlined ductile iron (DI) air piping existing the new Blower Building.
New 54-inch unlined ductile iron piping from the 36-in unlined DI exiting the new
Blower Building to the RAS Reaeration Basin
8-inch PVC drainpipe
• Total of 5 Subcontract packages and 4 Equipment packages advertised. Bid packages and contract
documents available at the project website: http://maxsonupgrades.com
• Overall Procurement Schedule
o Bid Proposals Due:
Equipment Packages: September 22, 2020 @ 2:00 PM CST
Subcontractor Packages: September 29, 2020 @ 2:00 PM CST
o Sealed Bids will be received at the below address until the time and date stated above for each
package. Sealed bids must be sent through the mail via delivery services such as FedEx, UPS,
USPS or other delivery service and shall be sent in such a manner to allow the opening of the
“Mailing Container” and still have intact the sealed bid. On the Mailing Container the sender
shall state the words “SEALED RESPONSE IS ENCLOSED” and the package number
CDM Constructors Inc.
Attn: Yaribell Hernandez
City of Memphis Tennessee, Maxson WWTF Improvements Project
Page 3 of 2
GMP # ____/Package _____ Bid
2690 Plant Road, Suite 101
Memphis, TN 38109
o Questions in writing – Due by September 11, 2020.
• Subcontractor Bid Packages Overview:
o Pre-qualification Questionnaire (recommend this to be provided in advance. Please e-mail
completed questionnaire to any on the procurement contacts above)
o City of Memphis Non- Discrimination Form
o City of Memphis Drug Free Workplace Form
o Bid Bond Requirement – 5%
o Minority Participation Requirements listed with each package. Project goals by package:
Sitework Subcontract – MBE: 43%; WBE: 7%
Yard Piping Subcontract – MBE: 7%; WBE: 5%
Concrete Subcontract – MBE 5%; WBE: 1%
Plant Construction Subcontract – MBE: 8%; WBE: 2%
Electrical Subcontract – MBE: 38%; WBE: 12%
If goal is not met, good faith efforts, as indicated in the RFP, must be
provided/submitted with bid proposal submitted at time of bid. If not provided
proposal will not be accepted.
o All forms noted on the bid forms must be submitted with bid, including the SRF Forms
indicated. Make sure you follow the checklist.
o Sealed bid envelope labeled as indicated on the Bid Package.
o Please tab/mark all documentation that must be submitted with your proposal for easy
identification.
CDM Yaribell Hernandez 407-660-6444 [email protected]
Jared Bloom 561-662-1508
901-59-8744
Bernhard MCC Douglas Reed 901-331-8849 [email protected]
Bernhard MCC Robert England [email protected]
Consolidated Electrical Distributors Gary King 901-907-9708 [email protected]
GMP 4 Pre-Bid Meeting Attendees
Company
Maxfoote
W&T
Contact Number Email
Michael Owen 985-624-8569 [email protected]
Terrell Richards 901-497-1291 [email protected]
Eaton
Square D
Angelo Contini
City of Memphis Gary Vaden [email protected]
City of Memphis Michael Brower [email protected]
City of Memphis Scott Morgan [email protected]
City of Memphis Marcelo Natuplag [email protected]
City of Memphis Derek McElroy [email protected]
CDM Brian Hilts 518-782-4504 [email protected]
CDM Zach Daniels 615-340-6539 [email protected]
CDM Alfred Vega 407-660-6430 [email protected]
CDM David Wise 407-660-6415 [email protected]
CDM Craig Gadberry 407-660-6459 [email protected]
CDM Jenna Gibson 407-660-6493 [email protected]
CDM Sarah Stewart 816-412-3129 [email protected]
CDM Brian Karmasin 407-660-6317 [email protected]
CDM Ronald Cobb 407-660-6352 [email protected]
CDM Eric Martin 407-660-6325 [email protected]
CDM Chris Smith 978-606-2713 [email protected]
CDM Brian Stacks 407-660-6475 [email protected]
City of Memphis Christopher Morrical [email protected]
Haren Construction Wes Gaskins 423-263-5561 [email protected]
CDM Kyle Babriak 703-691-6673 [email protected]
CDM Larry Oliver 407-660-6410 [email protected]
[email protected] GatesXylem
[email protected] HurleyMagnolia Construction
© 2020 CDM Smith 36694-111641
All Rights Reserved May 2020
T.E. Maxson WWTF Upgrades Piping – General Requirements
City of Memphis, TN 15050 - 1
SECTION 15050
PIPING – GENERAL REQUIREMENTS
PART 1 GENERAL
1.01 SCOPE OF WORK
A. This Section specifies the basic administrative and testing requirements for piping. Specific
piping materials, systems and related installation and testing requirements are specified in other
Sections of Divisions 2 and 15.
1.02 RELATED WORK
A. Pipe Testing and Cleaning is included in Section 01465.
B. Piping materials and systems are included in other Sections of Divisions 2 and 15.
C. Valves are included in Section 15100.
D. Pipe insulation is included in Section 15250.
1.03 SUBMITTALS
A. Submit, in accordance with Section 01300, general submittals for piping and piping systems are
listed below. It is not intended that all submittals listed below be provided for all piping
materials and systems. Refer to individual System or Piping Sections for specific submittals.
B. Shop Drawings and Product Data
1. Piping layouts in full detail.
2. Location of pipe hangers and supports.
3. Location and type of backup block or device to prevent joint separation.
4. Large scale details of wall penetrations and fabricated fittings.
5. Schedules of all pipe, fittings, special castings, couplings, expansion joints and other
appurtenances.
6. Catalog cuts of joints, couplings, harnesses, expansion joints, gaskets, fasteners and other
accessories.
7. Brochures and technical data on coatings and linings and proposed method for application
and repair.
C. Samples
D. Design Data
© 2020 CDM Smith
All Rights Reserved
T.E. Maxson WWTF Upgrades Piping – General Requirements
City of Memphis, TN 15050 - 2
E. Test Reports
1. Copies of certified shop tests showing compliance with appropriate standard.
2. Copies of all field test reports, signed by Contractor.
F. Certificates
1. Copies of certification for all welders performing work in accordance with ANSI B31.1.
G. Manufacturer’s Installation (or application) instructions.
H. Statement of Qualifications
I. Manufacturers Field Report
J. Project Record Document
K. Operation and Maintenance Data in accordance with Section 01730.
L. Warranties
1.04 REFERENCE STANDARDS
A. ASTM International
1. ASTM A307 - Standard Specification for Carbon Steel Bolts and Studs, 60,000 psi Tensile
Strength
B. American National Standards Institute (ANSI)
1. ANSI B16.5 - Pipe Flanges and Flanged Fittings
2. ANSI B31.1 - Power Piping
C. American Welding Society (AWS)
1. AWS B2.1 - Specification for Welding Procedure and Performance Qualifications
D. American Water Works Association (AWWA)
1. AWWA Manual M11 - Steel Pipe - A Guide for Design and Installation
E. American Society of Mechanical Engineers (ASME)
F. Underwriters Laboratories (UL)
G. Factory Mutual (FM)
H. Where reference is made to one of the above standards, the revision in effect at the time of bid
opening shall apply.
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T.E. Maxson WWTF Upgrades Piping – General Requirements
City of Memphis, TN 15050 - 3
1.05 QUALITY ASSURANCE
A. All materials shall be new and unused.
B. Install piping to meet requirements of local codes.
C. Provide manufacturer's certification that materials meet or exceed minimum requirements as
specified. Reference to standards such as ASTM and ANSI shall apply to those versions in
effect at the time of bid opening.
D. Coordinate dimensions and drilling of flanges with flanges for valves, pumps and other
equipment to be installed in piping systems. Bolt holes in flanges to straddle vertical centerline.
E. Reject materials contaminated with gasoline, lubricating oil, liquid or gaseous fuel, aromatic
compounds, paint solvent, paint thinner and acid solder.
F. Pipe-joint compound, for pipe carrying flammable or toxic gas, must bear approval of UL or
FM.
G. Unless otherwise specified, pressures referred to in all Piping Sections are expressed in pounds
per square in gauge above atmospheric pressure, psig and all temperature are expressed in
degrees Fahrenheit (F).
1.06 DELIVERY, STORAGE AND HANDLING
A. During loading, transportation and unloading take care to prevent damage to pipes and coating.
Carefully load and unload each pipe under control at all times. Place skids or blocks under each
pipe in the shop and securely wedge pipe during transportation to ensure no injury to pipe and
lining.
PART 2 PRODUCTS
2.01 MATERIALS
A. Specific piping materials and appurtenances are specified in the respective Piping or System
Sections.
B. General installation materials shall be as specified below.
1. Unions shall be brass or bronze unions for joining nonferrous pipe; malleable brass or
bronze-seated iron or steel unions for joining ferrous pipe; PVC unions for joining PVC
pipe; CPVC unions for joining CPVC pipe.
2. Flanged Joints. Bolt and nuts, Type 316 stainless steel, bolt number and size same as
flange standard; studs - same quality as machine bolts; 1/16-in thick rubber gaskets with
cloth insertions; rust-resistant coatings.
3. Temporary Plugs shall be standard plugs or caps which are suitable for permanent service.
4. Flexible Connections shall be flanged spool type, 180 degree F maximum service, single
filled arch with synthetic rubber tube and cover, steel-ring reinforced synthetic fiber
carcass, with flanges drilled to 150 lb ANSI B16.5. Steel retaining rings, control rods and
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All Rights Reserved
T.E. Maxson WWTF Upgrades Piping – General Requirements
City of Memphis, TN 15050 - 4
compression sleeves shall be provided where shown and as required for the working
pressure of the system in which the joint is installed. All flexible joints shall be rated for
the working pressure of the system in which they are installed.
PART 3 EXECUTION
3.01 GENERAL
A. All dirt, scale, weld splatter, water and other foreign matter shall be removed from the inside
and outside of all pipe and sub-assemblies prior to installing.
B. All pipe joints and connections to equipment shall be made in such a manner as to produce a
minimum of strain at the joint.
C. Install piping in a neat manner with lines straight and parallel or at right angles to walls or
column lines and with risers plumb. Run piping so as to avoid passing through ductwork or
directly under electric light outlets and/or interference with other lines. All work shall be
accomplished using recognized methods and procedures of pipe fabrication and in accordance
with the latest revision of applicable ANSI Standards, ASME Codes and Pipe Fabrication
Institute Standards.
1. Use full length of pipe except where cut lengths are necessary. Do not spring or deform
piping to make up joints.
2. Pipe shall be cut square, not upset, undersize or out of round. Ends shall be carefully
reamed and cleaned before being installed.
a. Bending of pipe is not permitted. Use fittings for all changes in direction.
3. Do not use bushings except where specifically approved by the Engineer. Reducers shall
be eccentric to provide for drainage from all liquid-bearing lines and facilitate air removal
from water lines.
4. Verify the locations and elevations of any existing piping and manholes before proceeding
with work on any system. Any discrepancies between the information shown on the
Drawings and the actual conditions found in the field shall be reported at once to the
Engineer. No claim for extra payment will be considered if the above provision has not
been complied with.
5. Where lines of lower service rating tie into services or equipment of higher service rating
the isolation valve between the two shall conform to the higher rating.
6. Mitering of pipe to form elbow is not permitted.
7. All piping interiors shall be thoroughly cleaned after installation and kept clean by
approved temporary closures on all openings until the system is put in service. Closures
should be suitable to withstand the hydrostatic test.
8. End caps on pre-cleaned pipe shall not be removed until immediately before assembly. All
open ends shall be capped immediately after completion of installation.
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All Rights Reserved
T.E. Maxson WWTF Upgrades Piping – General Requirements
City of Memphis, TN 15050 - 5
D. Test Connections
1. Provide 1/2-in female NPT test connection equipped with 1/2-in brass plug on all pump
suction and discharge lines. Where indicated on the Drawings, test connections should be
equipped with bar stock valve and gauge. Provide test connections at all steam traps. The
connection shall be located on the discharge side of the trap between the trap and the first
valve. It shall consist of a 1/2-in branch connection terminated with a gate valve.
E. Unions
1. Unions screwed or flanged shall be provided where indicated and in the following
locations even if not indicated.
a. In long runs of piping to permit convenient disassembly for alterations or repairs.
b. In by-passes around equipment.
c. In connections to tanks, pumps and other equipment between the shut-off valve and
the equipment.
d. In connections on both sides of traps, controls and automatic control valves.
F. Vents and Drains
1. Provide vents and drains in the following places:
a. Water Lines - Vents at high points and drains at low points.
b. Air Lines - Drains at low points.
3.02 UNIONS
A. Use unions to allow dismantling of pipe, valves and equipment.
3.03 WELDING
A. Welding in accordance with ANSI B31 and AWS B3.0.
B. Install welding fittings on all welded lines. Make changes in direction and intersection of lines
with welding fittings. Do not miter pipes to form elbows or notching of straight runs to form
tees, or any similar construction. Do not employ welder who has not been fully qualified in
above specified procedure and so certified by approved welding bureau or similar locally
recognized testing authority.
3.04 FLANGED JOINTS
A. Make flanged joints with bolts; bolt studs with nut on each end; or studs with nuts where one
flange is tapped. Use number and size of bolts conforming to same ANSI Standard as flanges.
Before flanges pieces are assembled, remove rust resistant coating from machined surfaces,
clean gaskets and smooth all burrs and other defects. Make up flanged joints tight, care being
taken to prevent undue strain upon valves or other pieces of equipment.
3.05 SLEEVE COUPLINGS
A. Install tierods, pipe clamps or bridles when sleeve type couplings or fittings are used in piping
system where indicated, and at changes in direction or other places as necessary, to prevent
joints from pulling apart under pressure. Use bridles and tierods at least 3/4-in in diameter,
36694-111641
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T.E. Maxson WWTF Upgrades Piping – General Requirements
City of Memphis, TN 15050 - 6
except where tierods replace flange bolts of smaller size, in which case fit with nut on each side
of pair of flanges. Joint harnessing shall conform, as a minimum, to the requirements for the
bolts and tie bolt lugs as set forth in AWWA Manual M11.
3.06 WALL SLEEVE SEALS
A. Use expandable rubber segmented sealing device with corrosion-resistant fasteners to make
watertight the annular space between pipe and sleeve. Determined the required inside diameter
of each individual wall opening or sleeve to fit the pipe and seal it to assure a watertight joint as
recommended by the manufacturer, before ordering, fabricating or installing. Install pipe
concentrically through wall sleeve. Install and tighten seal per manufacturer's instructions.
3.07 TESTING
A. Refer to Section 01465.
3.08 DISINFECTION
A. Refer to Section 01465.
3.09 HYDROSTATIC TEST
A. Refer to Section 01465.
3.10 SERVICE PRESSURE TEST
A. Refer to Section 01465.
END OF SECTION
36694-111641
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© 2020 CDM Smith 36694-111641
All Rights Reserved May 2020
T.E. Maxson WWTF Upgrades Plastic Pipe and Fittings
City of Memphis, TN 15064 - 1
SECTION 15064
PLASTIC PIPE AND FITTINGS
PART 1 GENERAL
1.01 SCOPE OF WORK
A. Furnish all labor, materials, equipment and incidentals required and install 1/8-in to 6-in non-
buried plastic piping and appurtenances as shown on the Drawings and as specified herein.
B. Refer to Section 15050 for additional general piping requirements.
1.02 RELATED WORK
A. Pipeline Testing and Cleaning is included in Section 01465.
B. Buried piping is included under Division 2.
C. Concrete work is included in Division 3.
D. Field painting is included in Section 09902.
E. Valves and appurtenances are included in Section 15100.
F. Pipe hangers and supports are included in Section 15140.
1.03 SUBMITTALS
A. Submit, in accordance with Section 01300, shop drawings and product data required to establish
compliance with this Section. Submittals shall include the following:
1. Shop drawings including piping layouts and schedules shall be submitted to the Engineer
and shall include dimensioning, fittings, locations of valves and appurtenances, joint
details, methods and locations of supports and all other pertinent technical specifications
for all piping to be furnished.
2. Shop drawing submittals for piping under this Section shall include all data and
information required for the complete piping systems. All dimensions shall be based on the
actual equipment to be furnished. Types and locations of pipe hangers and/or supports shall
be shown on the piping layout for each piping submittal.
1.04 REFERENCE STANDARDS
A. ASTM International.
1. ASTM D1784 - Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds
and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds.
2. ASTM D1785 - Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe,
Schedules 40, 80 and 120.
© 2020 CDM Smith 36694-111641
All Rights Reserved May 2020
T.E. Maxson WWTF Upgrades Plastic Pipe and Fittings
City of Memphis, TN 15064 - 2203
3. ASTM D2447 - Standard Specification for Polyethylene (PE) Plastic Pipe, Schedules 40
and 80, Based on Outside Diameter.
4. ASTM D2464 - Standard Specification for Threaded Poly (Vinyl Chloride) (PVC) Plastic
Pipe Fittings, Schedule 80.
5. ASTM D2466 - Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe
Fittings, Schedule 40.
6. ASTM D2467 - Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe
Fittings, Schedule 80.
7. ASTM D2564 - Standard Specification for Solvent Cements for Poly (Vinyl Chloride)
(PVC) Plastic Piping Systems.
8. ASTM D2657 - Standard Practice for Heat Fusion Joining of Polyolefin Pipe and Fittings.
9. ASTM D2665 - Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Drain,
Waste and Vent Pipe and Fittings.
10. ASTM D2855 - Standard Practice for Making Solvent-Cemented Joints with Poly (Vinyl
Chloride) (PVC) Pipe and Fittings.
11. ASTM D3261 - Standard Specification for Butt Heat Fusion Polyethylene (PE) Plastic
Fittings for Polyethylene (PE) Plastic Pipe and Tubing.
12. ASTM D3311 - Standard Specification for Drain, Waste and Vent (DWV) Plastic Fittings
Patterns.
13. ASTM D3350 - Standard Specification for Polyethylene Plastic Pipe and Fittings
Materials.
14. ASTM D5260 - Standard Classification for Chemical Resistance of Poly(Vinyl Chloride)
(PVC) Homopolymer and Copolymer Compounds and Chlorinated Poly(Vinyl Chloride)
(CPVC) Compounds
15. ASTM F437 - Standard Specification for Threaded Chlorinated Poly (Vinyl Chloride)
(CPVC) Plastic Pipe Fittings, Schedule 80.
16. ASTM F438 - Standard Specification for Socket - Type Chlorinated Poly (Vinyl Chloride)
(CPVC) Plastic Pipe Fittings, Schedule 40.
17. ASTM F439 - Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC)
Plastic Pipe Fittings, Schedule 80.
18. ASTM F441 - Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC)
Plastic Pipe, Schedules 40 and 80.
19. ASTM F493 - Standard Specification for Solvent Cements for Chlorinated Poly (Vinyl
Chloride) (CPVC) Plastic Pipe and Fittings.
20. ASTM F593 - Standard Specification for Stainless Steel Bolts, Hex Cap Screws and Studs.
© 2020 CDM Smith 36694-111641
All Rights Reserved May 2020
T.E. Maxson WWTF Upgrades Plastic Pipe and Fittings
City of Memphis, TN 15064 - 3
21. ASTM F594 - Standard Specification for Stainless Steel Nuts.
B. Plastic Pipe Institute (PPI)
1. PPI Handbook of Polyethylene Pipe
C. Handbook of PVC Pipe Design and Construction, Uni-Bell PVC Pipe Association
D. American National Standard Institute (ANSI)
1. ANSI B16.5 Pipe Flanges and Flanged Fittings.
E. National Sanitation Foundation (NSF)
F. Where reference is made to one of the above standards, the revision in effect at the time of bid
opening shall apply.
1.05 QUALITY ASSURANCE
A. All plastic pipe and fittings of each type shall be furnished by a single manufacturer who is
experienced in the manufacture of the items to be furnished; however, it shall not be a
requirement that the pipe and fittings be manufactured by the same manufacturer, provided that
the pipe and fittings are compatible in both compounding and size. The pipe and fittings shall be
designed, constructed and installed in accordance with the best practices and methods and shall
be suitable for the intended service.
1.06 SYSTEM DESCRIPTION
A. Piping shall be installed in those locations as shown on the Drawings.
B. The equipment and materials specified herein are intended to be standard types of plastic pipe
and fittings for use in transporting water and wastewater.
C. Plastic piping systems shall be designed for the following conditions:
1. System: <4-inch: Effluent Water (EW), Potable Water (PW), Drains
a. Material: Schedule 80 PVC
b. Fluids: Water, Wastewater
c. Pressure: Atmosphere to 150 psig
d. Flow Velocity: Up to 10 fps
e. Temperature: 35 to 100 degrees F
f. Special Conditions: Pulsation from pump starts/stops
2. System: ≥4-inch: Effluent Water (EW), Potable Water (PW)
a. Material: C900 PVC
b. Fluids: Water, Wastewater
c. Pressure: Atmosphere to 150 psig
d. Flow Velocity: Up to 10 fps
e. Temperature: 35 to 100 degrees F
f. Special Conditions: Pulsation from pump starts/stops
© 2020 CDM Smith 36694-111641
All Rights Reserved May 2020
T.E. Maxson WWTF Upgrades Plastic Pipe and Fittings
City of Memphis, TN 15064 - 4
PART 2 PRODUCTS
2.01 MATERIALS
A. Poly (Vinyl Chloride) Pipe and Fittings - PVC
1. Pipe shall be manufactured from PVC compounds meeting ASTM D1784, Class 12454 in
accordance with ASTM D1785, PVC 1120. The pipe shall have a minimum hydrostatic
design stress of 2,000 psi at 73 degrees F and shall be suitable for field cutting and solvent
welding. Pipe shall be of the sizes as shown on the Drawings and shall be Schedule 80
unless otherwise shown.
2. Fittings shall be the socket type for solvent welded joints conforming to ASTM D2467 or
ASTM D2466 where Schedule 40 pipe is shown on the Drawings. Fittings shall be
manufactured from PVC compound meeting ASTM D1784, Class 12454. Solvent cement
shall be as specified in ASTM D2564.
3. Pipe, fittings and solvent for use with potable water shall be certified by NSF in
accordance with NSF Standard No. 14 and the seal shall be included on the pipe.
B. Poly (Vinyl Chloride) Pipe and Fittings for Drain, Waste and Vent Service (DWV).
1. Pipe shall be manufactured from PVC compounds meeting ASTM D1784, Class 12454 in
accordance with ASTM D2665. The patterns, dimensions and laying lengths of fittings
including adapters shall meet the requirements of ASTM D3311. Solvent cement for
joining DWV pipe and fittings shall be as specified in ASTM D2564.
C. Chlorinated Poly (Vinyl Chloride) Pipe and fittings - CPVC
1. Pipe shall be manufactured from CPVC compounds meeting ASTM D1784, Class 23447
in accordance with ASTM F441, CPVC 4120. The pipe shall have a minimum hydrostatic
design stress of 2000 psi at 73 degrees F and 500 psi at 180 degrees F and shall be suitable
for field cutting and solvent welding. Pipe shall be of the sizes as shown on the Drawings
and shall be Schedule 80 unless otherwise shown.
2. Fittings shall be socket type for solvent weld joints conforming to ASTM F439 or ASTM
F438 where Schedule 40 pipe is shown on the Drawings. Fittings shall be manufactured
from CPVC compound meeting ASTM D1784 and any additional compound classification
requirements for specific chemical resistance for the applications specified in Paragraph
1.06 in accordance with ASTM D5260. Solvent cement shall be as specified in ASTM
F493.
D. Polyethylene Pipe and Fittings - HDPE
1. Pipe shall be manufactured from High Density Polyethylene (HDPE) base resin
conforming to Grade P34 (PPI PE3406 or better) in accordance with the requirements of
ASTM D2447. The pipe shall have a minimum hydrostatic design stress of 630 psi at 73
degrees F and be suitable for field cutting and heat fusion joining. Pipe shall be of the sizes
shown on the Drawings and shall be Schedule 80 unless otherwise shown.
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T.E. Maxson WWTF Upgrades Plastic Pipe and Fittings
City of Memphis, TN 15064 - 5
2. Fittings shall be the butt type for heat fusion joints conforming to ASTM D3261, except
that Schedule 80 fittings shall meet the sustained pressure test conditions as specified for
Schedule 80 pipe in Table 3 of ASTM D2447. Fittings shall be manufactured from the
same HDPE base resin, conforming to Grade P34, Class C (PPI PE3406 or better), as is
used to produce the pipe to which the fittings are to be joined. Both pipe and fittings shall
be manufactured by the same manufacturer to assure compatibility of the piping system
components.
E. Threaded joints shall be as specified under the applicable ASTM standard for the pipe and
fittings being used. Thread sealer shall be thread tape which shall be standard industrial quality
Teflon, Type 1.
F. Flanged Joints
1. Where flanged joints are shown on the Drawings, they shall be supplied with 1/8-in thick
full-faced Viton-N gaskets or Engineer-approved equal.
2. Flange bolt spacing, number and dimensions shall conform to the requirements of ANSI
B16.5. CPVC and PVC flanges shall be suitable for solvent cementing to the pipe and shall
be suitable for a minimum pressure of 150 psi.
3. Bolts, nuts and washers for flanged joints shall be for corrosive service conditions and shall
be ASTM F593 and F594, Type 316 stainless steel. Anti-seize compound for stainless steel
bolts and nuts shall be of a molybdenum disulfide base such as Molycoat-G or Engineer-
approved equal.
G. Fittings, specials, unions and flanges shall be of the same schedule number and manufactured of
the same materials as the pipe. Whenever unions are called out on the Drawings, flanged
connections may be substituted, provided that dimensional controls do not preclude use of
flanges.
H. Expansion joints for PVC and CPVC sizes 1/2-in to 6-in shall be telescoping type as
manufactured by Plastinetics, Inc.; ASAHI/America or equal. Expansion in pipes smaller than
1/2-in shall be accommodated with expansion loops.
2.02 SURFACE PREPARATION AND SHOP COATING
A. All PVC and CPVC piping and fittings exposed to view shall have its surface prepared and be
shop painted as specified in Section 09901. Surface preparation and shop priming are a part of
the work of this Section. Field finish painting is included in Section 09902. Assist as required in
identifying pipe contents, direction of flow and all else required for proper finish painting and
marking of pipe.
B. Painting will not be required on HDPE pipe, however, marking the pipe to indicate normal
direction of flow and the fluid being transported in accordance with the marking schedule
included in Section 09902 shall be required as part of the work of this Section. Marking systems
consisting of mylar/aluminum sandwich sheets held in place by mastic or adhesive compounds
which are compatible with the HDPE resin used to manufacture the pipe shall be used to
identify pipe contents and direction of flow.
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T.E. Maxson WWTF Upgrades Plastic Pipe and Fittings
City of Memphis, TN 15064 - 6
PART 3 EXECUTION
3.01 INSTALLATION
A. The installation of plastic pipe shall be strictly in accordance with the manufacturer's technical
data and printed instructions.
B. Joints for PVC and CPVC pipe shall be solvent cemented unless flanged or threaded are
otherwise shown on the Drawings or are specified as other types herein. In making solvent
cemented connections, clean dirt and moisture from pipe and fittings, bevel pipe ends slightly
with emery cloth to remove any shoulder or burrs created by cutting of the pipe. Solvent cement
joints shall be made in accordance with ASTM D2855 except that solvent cement formulated
especially for and as specified above shall be used for joining CPVC pipe and fittings. Primer
shall be used whenever recommended by the pipe, fitting, or cement manufacturer and in all
cases for joints on pipe systems 4-in in diameter or larger. Making solvent cement joints shall
not be performed and the work shall stop when the temperature, measured in the shade, is 40
degrees F and falling.
C. Joints between PVC drain, waste and vent pipe and cast-iron soil pipe shall be made with
approved mechanical compression joints designed for such use.
D. Joints for HDPE pipe shall be butt heat fusion. Butt heat fusion joints shall be made in
accordance with the requirements of ASTM D2657.
E. Installation of valves and fittings shall be in accordance with manufacturer's instructions.
Particular care shall be taken not to overstress threaded connections. In making solvent cement
connections, the solvent cement or primer shall not be spilled on valves. Any cement allowed to
run from joints shall be cleaned from the pipe and fittings immediately.
F. All piping shall have a sufficient number of unions to allow convenient removal of piping and
shall be as approved by the Engineer. PVC and CPVC pipe shall be installed with at least one
expansion joint or loop near the center of each straight run of pipe which is 50-ft or longer with
the maximum spacing between expansion joints or loops being 150-ft.
G. All plastic pipe to metal pipe connections shall be made using flanged connections. Metal
piping shall not be threaded into plastic fittings, valves, or couplings nor shall plastic piping be
threaded into metal valves, fittings or couplings. Only socket to thread adaptors shall be used
for threaded plastic pipe connections to other threaded devices.
H. Concrete inserts for hangers and supports shall be furnished and installed in the concrete as it is
placed. The inserts shall be set in accordance with the requirements of the piping layout and the
Contractor shall verify these locations from approved piping layout drawings and the structural
drawings. Pipe hangers and supports are specified in Section 15140.
I. Due to its large coefficient of thermal expansion, HDPE pipe shall be installed at its maximum
operating temperature to prevent sagging between the hangers or supports. Supports at each end
of the straight HDPE pipe runs shall be of sufficient strength to develop anchoring forces
adequate to oppose the tensile forces developed in the pipe due to thermal contraction. The
exception to this requirement shall be for flanged HDPE connections, because, if the flanged
connection is made up at the maximum operating temperature, the thermal contraction of the
flange thickness will reduce the required tensile force in the flange bolts. Flanged HDPE
© 2020 CDM Smith 36694-111641
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T.E. Maxson WWTF Upgrades Plastic Pipe and Fittings
City of Memphis, TN 15064 - 7
connections shall, therefore be made up at the lowest expected operating temperature and then
the entire piping system shall be brought up to the maximum operating temperature for final
installation. (Note: Packing the flanges in ice may be necessary to achieve the proper
installation temperature).
3.02 FIELD TESTING
A. Refer to Section 01465.
3.03 PAINTING
A. All CPVC and PVC pipe and fittings exposed to the direct sunlight shall be field painted to
provide additional UV protection. This painting shall be required whether or not marking is
required and shall be in accordance with Section 09901.
END OF SECTION
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T.E. Maxson WWTF Upgrades Automatic Transfer Switches
City of Memphis, TN 16492 - 1
SECTION 16492 LOW VOLTAGE AUTOMATIC TRANSFER SWITCHES
PART 1 GENERAL
1.01 SCOPE OF WORK
A. Furnish, install, test and place into operation the automatic transfer switches with features,
accessories, enclosures, number of poles, amperage, voltage and withstand current ratings as
shown on the Drawings and in accordance with these Specifications.
B. Each automatic transfer switch shall consist of an inherently double throw power transfer switch
unit and a controller interconnected to provide complete automatic operation. All transfer
switches and controllers shall be the product of the same manufacturer.
1.02 RELATED WORK
A. Electrical work not herein specified is included in other Sections of Division 16.
B. Power system studies are included in Section 16015. The completed study shall be approved by
the Engineer before the automatic transfer switch submittal will be reviewed.
1.03 SUBMITTALS
A. Submit shop drawings and product data, in accordance with Section 01300, as follows:
1. Equipment outline drawings and master drawing index showing elevation, plan and interior
views, dimensions, weight, anchor bolt pattern and front panel layouts.
2. Provide a list of all options, special features, ratings and deviations from the Specifications.
3. Conduit entrance drawings.
4. Furnish complete Bill of Materials indicating manufacturer's part numbers.
5. Product data sheets and catalog numbers for over current protective devices, motor starters,
control relays, control stations, meters, pilot lights, etc. List all options, trip adjustments
and accessories furnished specifically for this Project.
6. Provide control systems engineering to produce custom unit elementary drawings showing
inter-wiring and interlocking between units and remotely mounted devices. Show wire and
terminal numbers. Indicate special identifications for electrical devices per the Contract
Drawings.
7. Assembly ratings including short circuit rating, voltage and continuous current.
8. Major component ratings including voltage, continuous current rating and interrupting
ratings.
9. Cable terminal sizes.
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City of Memphis, TN 16492 - 2
10. Instruction and renewal parts books.
11. Itemized list of spare parts furnished specifically for this Project, including part numbers.
12. Certified shop test reports.
13. As-built final drawings.
14. Field test and inspection reports.
15. Seismic certification.
1.04 REFERENCE STANDARDS
A. The automatic transfer switches shall be UL listed for use in standby systems in accordance
with Sections 517, 700, 701 and 702 of the National Electrical Code and shall be designed, built
and tested in accordance with the latest editions and revisions of the following standards and
codes:
1. UL 1008 - Transfer Switches
2. UL 891
3. NFPA 70 - National Electrical Code
4. NFPA 110 - Emergency and Standby Power Systems
5. NEMA ICS 2-477
6. NEMA ICS 10 - AC Transfer Switch Equipment
7. IEEE 446 - Recommended Practice for Emergency and Standby Power Systems
8. IECC 947-6-1 - Low Voltage Switchgear and Control Gear; Multifunction Equipment;
Automatic Transfer Switching Equipment
9. NFPA 99 - Essential Electrical Systems of Health Care Facilities
10. UL 508 Industrial Control Equipment
11. International Standards Organization ISO 9001
12. IEC 801 -2,3,4,and 5
13. CISPR 11
14. Compliant with FCC Part 15, Subpart B, Class A
15. Tennessee State Building Code
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1.05 QUALITY ASSURANCE
A. A factory authorized service and parts organization shall be able to respond to any service call
for the project within eight hours. Provide the name and address of the factory authorized
service and parts organization nearest to the project location at the time of the bid.
B. Equipment components and devices shall be UL listed to the extent possible wherever UL
standards exist for such equipment.
C. The automatic transfer switch manufacturer shall demonstrate at least ten years of continuous
field operating experience in automatic transfer switch design and fabrication within the last
fifteen years. Submit customer/user list with telephone numbers, addresses and names of
customer/user representatives.
D. The manufacturer of the assembly shall be the manufacturer of major components and control
modules installed within the assembly.
E. The equipment and major components shall be suitable for and certified to meet all applicable
seismic requirements of Uniform Building Code (UBC) for zone 4 applications. Guidelines for
the installation consistent with these requirements shall be provided by the switch manufacturer
and be based upon testing of representative equipment. The test response spectrum shall be
based upon a 5 percent minimum-damping factor, UBC peak of 2.15g's (3.2-11Hz), and APA of
0.8g's applied at the base of the equipment. The tests shall fully envelop this response spectrum
for all equipment natural frequencies up to at least 35 Hz.
F. The automatic transfer switch shall be certified to ISO 9001 International Quality Standard and
the manufacturer shall have third party certification verifying quality assurance in design,
development, production, installation, and servicing.
G. The manufacturer shall provide a notarized letter certifying compliance with all the
requirements of this specification. The certification shall identify, by serial number, the
equipment involved. No exceptions to this specification, other than those stipulated at the time
of submittal, shall be included in the certification.
H. Indoor structures, mounting, anchor bolts and appurtenances furnished to support equipment
load and seismic forces shall conform to the latest applicable requirements of the Tennessee
State Building Code.
1.06 OPERATING AND MAINTENANCE MANUALS
A. Operating and maintenance manuals shall be furnished in accordance with the Section 16000.
B. The manuals shall be bound and shall also include:
1. A list of "as left" settings for all timing relays.
2. System schematic drawings "As Built," illustrating all components and electrical
connections of the systems supplied under this Section.
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3. Equipment operation and maintenance manuals shall be provided with each assembly
shipped, and shall include instruction leaflets and instruction bulletins for the complete
assembly and each major component.
1.07 MANUFACTURERS
A. The general arrangement of each automatic transfer switch is shown on the Drawings.
Automatic transfer switches shall be one of the following products or equal:
1. Eaton.
2. Russelectric, Inc.
3. ABB/Zenith.
4. ASCO.
1.08 DELIVERY, STORAGE AND HANDLING
A. Package the automatic transfer switch for maximum protection during delivery and storage. The
ATS shall be handled and stored in accordance with manufacturer's instructions. One copy of
these instructions shall be included with the equipment at time of shipment.
B. Store the automatic transfer switch indoors in a clean, dry, heated storage facility until ready for
installation. Do not install the automatic transfer switch in its final location until the facilities
are permanently weather tight. Protect the automatic transfer switch at all times from exposure
to moisture, chemicals, hydrogen sulfide and chlorine gas.
1.09 REGULATORY REQUIREMENTS
A. Provide a certificate of compliance with UL 1008 for the automatic transfer switches furnished
under this Section.
1.10 WARRANTY
A. Provide a two years minimum warranty on all parts and labor upon start-up and customer
acceptance of the automatic transfer switch.
1.11 SPARE PARTS
A. Provide the following spare parts in the quantities specified:
1. One dozen each size of cover bolts, cage nuts and door fasteners.
2. 2 cans of aerosol touch-up paint.
3. 100 percent replacement fuses, all types and sizes.
4. One dozen replacement lamps for pilot lights.
5. Two of each color replacement lens caps for pilot lights.
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City of Memphis, TN 16492 - 5
B. Spare parts shall be boxed or packaged for long-term storage. Identify each item with
manufacturer's name, description and part number on the exterior of the package.
PART 2 PRODUCTS
2.01 APPLICATIONS
A. Panelboard Switching Applications
1. Automatic transfer switches shall be designed for a Source 1 and Source 2 of 480 volts, 3-
phase, 3-wire. Current ratings shall be as shown on the Drawings. Switches shall be listed
under UL 1008.
2. The transfer switches shall be of inherently 3-pole, double throw construction and shall
have three-position operation: closed to Source 1, open, and closed to Source 2. Time delay
between opening of the closed contacts and closing of the open contacts shall be a
minimum of 400 milliseconds to allow for voltage decay before transfer is complete. The
following accessories shall be furnished:
a. Adjustable 0 to 30 second time delay to override preferred source power outages.
b. Adjustable 1 to 300 second time delay before retransfer.
2.02 CONSTRUCTION
A. The automatic transfer switch shall be designed for sources of 480 volt, 3 phase, 3 wire,
grounded-wye 60 Hz. Current ratings shall be as shown on the Drawings.
1. The switch shall initiate transfer of the load to the alternate source when any phase of the
preferred source drops below 90 percent of normal voltage.
2. The transfer switch shall be adequately constructed to carry its full rated current on a
continuous 24-hour basis in all approved enclosures and shall not show excessive heating
or be subject to derating. The transfer switch shall be capable of withstanding inrush
current values to 20 times its full load current rating without mechanical distortion of main
contact poles or supports. The transfer switch shall be capable of withstanding all available
system fault currents without parting of or damage to contacts during the fault clearing
time of the system over-current device.
a. The switch shall be mechanically held and electrically operated by a single-solenoid
mechanism energized from the source to which the load is to be transferred.
b. A time delay between the opening of the closed contacts and the closing of the open
contacts shall allow for voltage decay before transfer.
c. Automatic transfer switches incorporating linear drive motor mechanisms will not be
acceptable.
3. The automatic transfer switch shall be three pole transfer contacts.
4. The automatic transfer switch shall have tin-plated copper busses.
5. Ampere ratings for total system transfer shall include motor, electric-discharge lamp,
electric heating and tungsten-filament lamp loads in accordance with Paragraph 38.13 of
UL-1008.
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6. The automatic transfer switch shall consist of a power transfer switch and a control
module, interconnected to provide complete automatic operation.
7. Automatic switch construction and packaging shall be such that all servicing can be
accomplished from the front without removal of the switch from the cabinet. A manual-
operating handle shall be provided for maintenance purposes. The handle shall permit the
operator to manually stop the contacts at any point throughout their entire travel to inspect
and service the contacts when required.
8. Interfacing relays shall be industrial control grade, plug-in type with dust covers.
9. All timers shall be fully adjustable throughout their complete range, without affecting
operation. It shall not cause an infinite time delay because of a setting anywhere on their
scale.
10. Enclosure shall be NEMA 12 with gasket unless otherwise shown on the Drawings. Paint
color shall be ANSI Z55.1 No. 61 light gray. Control wiring shall be rated for 600 Volts,
UL 1015. Wires shall be placed in wire duct or harnessed, and shall be supported to
prevent sagging or breakage from weight or vibration. All wiring to hinged doors shall be
run through door terminal blocks or connection plugs.
11. Identification: All wiring shall be numbered with typewritten heat shrinkable wire markers
at each termination point.
2.03 ACCESSORIES
A. An adjustable time delay of 0 to 30 seconds shall be provided to override momentary source
outages and delay all transfers, factory set at 3 seconds.
B. Adjustable time delay on retransfer to preferred source shall be provided. Time delay shall be
automatically bypassed if source fails and the preferred source is available. Time delay shall be
field adjustable from 0 to 30 minutes. (Set at 30 minutes).
C. Preferred source selector switch (Source 1, Source 2, None): Provided to switch between
preferred sources. If a preferred source is selected and the transfer override switch is off, the
transfer switch shall retransfer to the preferred source when it becomes available and after set
time delays. If no source is selected, the transfer switch shall remain on a source until failure or
manually transferred to other source.
D. Inhibit Re-Transfer/Transfer override switch (On, Off): Overrides automatic retransfer control
so automatic transfer switch will remain connected to current power source regardless of
condition of the other source. Pilot light indicates override status.
E. Auto-Manual selector switch with Transfer pushbutton. In Manual mode, automatic switching
shall be inhibited and local manual operation shall be permitted through use of a transfer
pushbutton.
F. A time delay on transfer to standby shall be provided, factory set at 5 seconds but field
adjustable up to 5 minutes.
G. Auxiliary contact to close when sources fail.
© 2020 CDM Smith 36694-111641
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T.E. Maxson WWTF Upgrades Automatic Transfer Switches
City of Memphis, TN 16492 - 7
H. Close differential adjustable relay under voltage protection on all three phases of the two
sources, set to drop out at 80 percent of rated voltage and pick up at 90 percent of rated voltage.
Over voltage relay protection shall drop out at 104 percent of rated voltage and pick up at 2
percent below trip.
I. Close differential adjustable relay under frequency sensing on all three phases of the generator
source, set to drop out at 85 percent of rated frequency and pickup at 90 percent rated
frequency. Over frequency relay protection shall drop out at 104 percent of rated frequency and
pick up at 2 percent below trip.
J. Voltage unbalance relay shall be set to drop out at 5 percent and pick up at 1 percent below drop
out.
K. Auxiliary Signals
1. Source 1 available
2. Source 2 available
3. Transfer switch on Source 1
4. Transfer switch on Source 2
5. Source 1 failure
6. Source 2 failure
L. Timed auxiliary contacts to open 0 to 10 seconds (adjustable) before transfer to either source
and to close after transfer has occurred. These contacts are to cause the pumps to come to a
complete stop before transfer to either source and allow restart after transfer has occurred.
M. Switch-Position Pilot Lights: Indicate source to which load is connected.
N. Source-Available Indicating Lights:
1. Source 1: Green light with nameplate engraved "Source 1 Available."
2. Source 2: Red light with nameplate engraved "Source 2 Available."
O. Test Switch: Simulate preferred-source failure.
P. An AL-CU listed solderless screw type equipment ground lug.
2.04 MICROPROCESSOR CONTROLLER
A. The controller's sensing and logic shall be provided by a built-in microprocessor and shall have
the ability to communicate serially through an optional serial communication module.
B. Voltage sensing shall be true RMS type and shall be accurate to plus/minus 1 percent of
nominal voltage. Frequency sensing shall be accurate to plus/minus 0.2 percent. The panel shall
be capable of operating over a temperature range of minus 20 to plus 60 degrees C and storage
from minus 55 to plus 85 degrees C.
© 2020 CDM Smith 36694-111641
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T.E. Maxson WWTF Upgrades Automatic Transfer Switches
City of Memphis, TN 16492 - 8
C. The controller shall be connected to the transfer switch by an interconnecting wiring harness.
The harness shall include a keyed disconnect plug. Sensing and control logic shall be provided
on multi-layer printed circuit boards. Interfacing relays shall be industrial grade, plug-in type
with dust covers. The panel shall be mounted separately from the transfer switch.
D. All customer connections shall be wired to a common terminal block.
E. The controller shall meet or exceed the requirements for electromagnetic compatibility as
follows:
1. IEEE 472 (ANSI C37.90A) Ring Wave Test
2. ENC 55011 19 91 Class A Conducted and Radiated Emission
3. EN 61000-4-2 Electrostatic Discharge Immunity, Direct Contact & Air Discharge
4. EN 61000-4-3 Radiated Electromagnetic Field Immunity
5. EN 61000-4-4 Electrical Fast Transient Immunity
6. EN 61000-4-5 Surge Immunity
7. EN 50141 HF Conducted Disturbances Immunity
2.05 WITHSTAND AND CLOSING RATINGS
A. Tested Fault-Current Closing and Short-Circuit Ratings: Adequate for duty imposed by
protective devices at installation locations in Project under the fault conditions indicated, based
on testing according to UL 1008.
2.06
2.06 SIGNAGE
A. Each automatic transfer switch shall be furnished with a sign on all doors marked DANGER -
480 VOLTS - KEEP OUT. Letters shall not be less than 1-in high, 1/4-in stroke. Signs shall be
laminated plastic, engraved white letters with a red background.
B. Provide a 2-in by 6-in nominal engraved master nameplate, of two ply laminated plastic, black
face, 1/2-in high by 1/8-in stroke white letters, screw fastened to the top of the door. Include
ATS designation shown on the Drawings (e.g., ATS-1, ATS-2, etc.), service and short circuit
ratings.
C. Furnish on the external side of the front door marked WARNING - DO NOT OPERATE
TRANSFER SWITCH WITH INTERNAL MANUAL HANDLE UNLESS BOTH POWER
SOURCES ARE DISCONNECTED. Sign shall be of laminated plastic, at least 3/32-in thick,
with 1/2-in high white letters on a red background.
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T.E. Maxson WWTF Upgrades Automatic Transfer Switches
City of Memphis, TN 16492 - 9
2.07 SURFACE PREPARATION AND SHOP COATINGS
A. All non-current carrying metal parts of the control center assembly shall be cleaned of all weld
spatter and other foreign material and given a heat cured, phosphatized chemical pre-treatment
to inhibit rust.
B. Indoor equipment shall be finish painted with one coat of manufacturers standard electro-
coated, heat cured enamel.
C. Outdoor equipment shall be finish painted with two coats of polyurethane or epoxy enamel, 2 to
3 mil thickness. Exterior color shall be light gray.
D. Unpainted non-current carrying parts shall receive a protective zinc plating to prevent corrosion.
E. All printed circuit boards shall have a conformal coating for environmental protection against
fungus.
F. All current carrying contacts shall be silver plated or made of silver alloy to provide resistance
to welding, sticking and low voltage drop.
2.08 SHOP TESTING
A. Perform manufacturer's standard production testing and inspection in accordance with NEMA
and ANSI standards.
PART 3 EXECUTION
3.01 INSTALLATION
A. Automatic transfer switch floor sills shall be bolted directly to the finished floor or equipment
pad. Structure shall be leveled and plumb. Anchor bolts shall be 1/2-in. Provide hardware and
shims for installation.
B. Field installed interior wiring shall be neatly grouped by circuit and bound by plastic tie wraps.
Circuit groups shall be supported so that circuit terminations are not stressed.
C. In general, all conduit entering or leaving the automatic transfer switch shall be stubbed into the
section in which the conductors are to be terminated.
D. Install the equipment in accordance with the manufacturers instructions.
E. Remove temporary lifting angles, lugs and shipping braces. Touch-up damaged paint finishes.
F. Torque all connections.
G. Seal all seams, cracks, or openings in outdoor enclosures.
3.02 FIELD TESTING
A. Make the following minimum tests and checks before the manufacturer's representative is called
in for testing and adjustment.
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T.E. Maxson WWTF Upgrades Automatic Transfer Switches
City of Memphis, TN 16492 - 10
1. Megger incoming line terminals and buses, phase-to-phase and phase-to-ground after
disconnecting devices sensitive to megger voltage.
2. Check polarity and continuity.
3. Check mechanical interlocks for proper operation.
4. Test ground connections for continuity and resistance.
5. Adjust unit doors.
6. Check control circuit interlocking and continuity. Provide external source of control power
for this test.
7. Adjust timing devices to their correct settings.
B. In the event of an equipment fault, notify the Owner immediately. After the cause of the fault
has been identified and corrected, a joint inspection of the equipment shall be conducted by the
Contractor and the equipment manufacturers' factory service technician. Repair or replace the
equipment as directed by the Engineer prior to placing the equipment back into service.
3.03 ADJUSTMENT, START-UP AND TRAINING
A. The automatic transfer switch manufacturer shall provide the services of a factory trained
service technician for start-up and training of the Owner's personnel. The first trip shall be
coordinated with the equipment start-up. The second trip shall include any necessary follow-up
or punch list work and shall also include instructions to the Owner or to his or her designated
personnel. The manufacturer's service technician shall demonstrate and test all operational
features of the installed equipment to the satisfaction of the Owner. Submit a certified copy of
the field inspection to the Engineer. No equipment shall be energized without the approval of
the Engineer.
B. The automatic transfer switch manufacturer's factory service technician shall make the
following inspection, tests and adjustments:
1. Ensure proper operation of the individual components and overall sequence of operation.
2. Ensure that the operating transfer time, voltage, frequency and time delay settings comply
with the specification requirements.
3. Inspect the installation for compliance with the manufacturers' recommended installation
practices and report all deviations to the Engineer.
3.04 CLEANING
A. Remove all rubbish and debris from inside and around the switch. Remove dirt, dust, or
concrete spatter from the interior and exterior of the equipment using brushes, vacuum cleaner
or clean, lint-free rags. Do not use compressed air.
END OF SECTION
SURVEY
DRAWN BY
DESIGN BY
DEP. CITY ENGINEER DATE CITY ENGINEER DATE
DATE
DATE
DATE
REVIEWED
BOOK
SCALE
PROJECT
REVISION
MEMPHIS, TN
SEWER BASIN NO-1
119 S. Main Street
Memphis, TN 38103
Tel: (901) 322-8710
Suite 562
DIVISION OF ENGINEERING
T.E. MAXSON WWTF PROCESS UPGRADES
PROJECT NO. : SW02033 DWG NO.:
SHEET OF
80 Monroe Ave
Memphis, TN 38103
Tel: (901) 5438000
Suite 420
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PHOTO 1 1
1
1
1
1 ADDENDUM 1 PKG 2B
2
2 ADDENDUM 2 PKG 2B
5/28/20
SURVEY
DRAWN BY
DESIGN BY
DEP. CITY ENGINEER DATE CITY ENGINEER DATE
DATE
DATE
DATE
REVIEWED
BOOK
SCALE
PROJECT
REVISION
MEMPHIS, TN
SEWER BASIN NO-1
119 S. Main Street
Memphis, TN 38103
Tel: (901) 322-8710
Suite 562
DIVISION OF ENGINEERING
T.E. MAXSON WWTF PROCESS UPGRADES
PROJECT NO. : SW02033 DWG NO.:
SHEET OF
N
GS-C-349 SHEET 30 of 81
24" RAS REAERATION BASIN TIE INS
(PACKAGE 2B)
11
N
PLAN
PLAN
N
PHOTO 1 1
N
PLAN
8
SURVEY
DRAWN BY
DESIGN BY
DEP. CITY ENGINEER DATE CITY ENGINEER DATE
DATE
DATE
DATE
REVIEWED
BOOK
SCALE
PROJECT
REVISION
MEMPHIS, TN
SEWER BASIN NO-1
119 S. Main Street
Memphis, TN 38103
Tel: (901) 322-8710
Suite 562
DIVISION OF ENGINEERING
T.E. MAXSON WWTF PROCESS UPGRADES
PROJECT NO. : SW02033 DWG NO.:
SHEET OF
N
N
GS-C-350 SHEET 30 of 81
RAS REAERATION BASIN,
IPA AND BLOWER BUILDING
YARD PIPING SITE PLAN
11
BLOWER
BUILDING