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ADDENDUM | No. 2

PROJECT Redfield Booster Station – WEB Water Development Association

BID DATE 2:00 PM Monday, January 13, 2020

BID

LOCATION

WEB Water Office

38456 US Highway 12, Aberdeen, SD 57401

ISSUE DATE 1/8/2020

NOTICE Failure to acknowledge all addenda in the BID may cause rejection of the BID.

See Instructions to Bidders.

SCOPE OF THIS ADDENDUM

The following becomes a part of the original project manual and drawings, taking precedence over the items that may

conflict. The bidder shall note receipt and make acknowledgment of the Addendum on his/her bid form, incorporating

its provision in his/her bid.

PRIOR APPROVALS

The following manufacturers of the items and materials have been added to the list of approved manufacturers. Listing

of an item does not change the requirements of the specifications. Equipment furnished shall meet the materials and

performance requirements as specified.

SECTION DESCRIPTION MANUFACTURER

07 5323 60 Mil EPDM Membrane Mule Hide Products

33 1000 Mechanical Joint Fittings – PVC Pipe SIP Industries

44 4256 Vertical Turbine Pumps American-Marsh

GENERAL

Owner Furnished Items – Excise Tax:

The exact value of the Owner furnished materials (from Micro-Comm) is not yet known. If excise tax

applies to these items which are to be installed by the Contractor, the value of these items will be

provided to the Contractor and the excise tax amount will be added to the project via Change Order

during construction.

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PROJECT MANUAL

The following additions, changes and clarifications have been made to the Project Manual.

Section 03 4100 – Precast Structural Concrete,

Section 1.6, B,

Delete:

Paragraph in its entirety.

Add:

B. Installer Qualifications: A precast concrete erector qualified and designated by PCI’s Certificate of

Compliance, to erect Category S1 – Simple Structural Systems.

Section 03 4500 – Precast Architectural Concrete,

Part 1 – General, Part 2 – Products & Part 3 - Execution

Change:

Change “PCI MNL 117” to read as: “PCI MNL 116” throughout this specification section.


Section 1.7, A,

Delete:


Add:

A. Installer Qualifications: An experienced installer who has completed precast architectural concrete

work similar in material, design, and extent to that indicated for this Project and whose work has

resulted in construction with a record of successful in-service performance.


Section 1.7, B, 3,

Delete:


Add:

3. Participates in PCI’s Plant Certification program and is designated a PCI-certified plant for Group C,

Category C3A – Prestressed, Straight Strand Structural Members with an Architectural Finish.

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Section 2.10, A,

Delete:


Add:

A. Expanded -Polystyrene (EPS) Board Insulation: ASTM C578, Type II; square edges.

a. Density: 1.35lb/cu. ft.

b. Minimum Thickness: 3”.

c. Minimum R-Value: 13.65 @40 degrees.

Section 05 5000 – Metal Fabrications,

Sections 2.9, 2.13, 3.4, & 3.5,

Delete:

Sections in their entirety.

Section 07 5323 – Ethylene-Propylene-Diene-Monomer (EPDM) Roofing,

Section 1.9. A.3,

Delete:

3. Warranty shall include hail damage.

Clarification: Hail damage shall not be included as part of manufacturer’s special warranty.

Section 08 7100 – Door Hardware,

Section 3.6,

Delete:

Delete Door Hardware Sets in their entirety.

Add:

Add new Door Hardware Sets (Hardware Sets 1 &2) – Refer to attachment for new Door Hardware Sets.

Section 33 1000 – Water Utilities,

Section 2.2, F, Foster Adapter:

Delete:

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The device shall come complete with all accessories, including standard SBR MJ gaskets conforming to the

latest revision of AWWA C111/ASTM F-477 and blue fluorocarbon coated bolts and nuts conforming to

AWWA C111/A21.11.

Add:

The device shall come complete with all accessories, including standard SBR MJ gaskets conforming to the

latest revision of AWWA C111/ASTM F-477. The bolts and nuts shall be ASTM A193 type 304 stainless

and the nuts shall be Teflon® coated.

Section 40 9100 – Instrumentation and Control for Process Systems,

Section 2.1, A, 2, Accuracy:

Delete:

+/- 0.1% of span

Add:

+/- 0.2% of span

Section 2.1, A, 2, Transmitter Enclosure:

Delete:

Transmitter shall be mounted separately from the metering tube.

Add:

Transmitter shall be integrally mounted to the metering tube.

Section 2.1, E, Temperature and Humidity Transmitter (Room):

Delete:


Add:

E. Temperature and Humidity Transmitters will be model HX94C as manufactured by Omega. Transmitters

will be furnished by WEB System Integrator (NIC). The transmitter for the Electrical Room will come pre-

installed in RTU-100, and the transmitter for the Pump Room will be installed and wired by the General

Contractor and/or Electrical Subcontractor.

Section 44 4256 – Pumps

Section 2.1, A:

Add the following to the end of paragraph A:

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“The entire pump assemblies must be built and sourced by the manufacturer of the pump bowl assembly.

The pump assemblies must come with factory stamped serial numbers of the manufacturer. Pumps must

come with a warranty backed by the manufacturer listed on the pump, not a third-party vendor.”

Section 2.1, C, Pump Design Conditions:

Delete:

Min. Eff.: 81%

Add:

Minimum Efficiency: 80%


Delete:

NPSH Required: < 20 feet at design condition No. 1.

Add:

NPSH Required: < 25 feet at design condition No. 1.


Add the following design conditions:

Run-out point flow: 1,700 gpm minimum

Run-out point head: 150 feet minimum


Add the following design parameter:

Pump shall be free of any upthrust characteristics throughout entire pump curve.

Section 2.1, D, 4:

Delete:


Add:

4. Provide stainless steel threaded coupling between the motor and pump shafts.

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Section 2.1, E, 3:

Delete:

Stainless steel or poly tubing shall be sized to convey adequate water to properly lubricate and cool the

seal.

Add:

Stainless steel tubing shall be sized to convey adequate water to properly lubricate and cool the seal.

DRAWINGS

The following additions, changes and clarifications have been made to the Drawings.

Drawing Sheet 2.3

Site piping plan,

Add: Contractor shall include costs for a temporary chlorine injection point to assist in disinfection. Injection

point shall be located on the 12” PVC pipe between the 12”x12” tee and 20”x12” reducer on the suction

piping of the booster station. Components shall include a 12”x1” service saddle (Romac model 202S), 1” NPT

corp stop, and 1” copper tubing terminated above grade. After disinfection, remove copper tubing and close

corp stop.

NOTE The Plan Holders List and Addendums are available on our website at http://www.bannerassociates.com by

clicking on View Bid Information / Project Name / Project Information link.

Project Manual and Drawing inquiries regarding the work should be directed to:

CONTACT PERSON(S)

Banner Associates, Inc. Tel 1-605-692-6342 | Toll Free 1-855-323-6342 | Fax 1-605-692-5714

Bryan Lipp, P.E. Project Engineer - Process [email protected]

Adam Hanson, P.E. Structural Dpt. Head [email protected]

Justin Bucher, P.E. Project Engineer - Civil [email protected]

Dave Lorang Architectural Designer [email protected]

West Plains Engineering Tel 1-605-362-3753

Isaac Anderson, P.E. Mechanical Engineer [email protected]

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Todd Baack Electrical Designer [email protected]

ATTACHMENTS

1. Section 08 7100: Door Hardware Sets

2. Mechanical/Electrical Addendum No. 2

3. Prebid Conference Meeting Minutes

____________________________

Bryan Lipp, P.E. SD #13398

REDFIELD BOOSTER STATION

WEB WATER DEVELOPMENT ASSOCIATION

NEAR MELLETTE, SOUTH DAKOTA

SECTION 08 7100 - DOOR HARDWARE

--------------------------------------------------------------

#23033.00.00 08 7100-1 1/8/2020

3.6 DOOR HARDWARE SETS

Hardware Set 1: Door #1-101A, 1-101B

Each to Receive:

3 EA HINGE T4A3386 4.5 X 4.5 US32D MC KINNEY MFG.

1 EA LOCKSET L Series: L9453P – F20 US32D SCHLAGE

1 EA HD CONC OHS 904H US32D GLYNN-JOHNSON

1 EA CLOSER P7500SS 689 NORTON

1 EA THRESHOLD 425HD-36" ALUM NATIONAL GUARD

1 EA WEATHERSTRIP S88 --- PEMKO

1 EA SWEEP 321 CN (Width of door opening) --- PEMKO

1 EA KICK PLATE KP50 10x34 B4E CSK US32D BURNS MFG

Hardware Set 2: Door #1-102

Each to Receive:

6 EA HINGE T4A3386 4.5 X 4.5 US32D MC KINNEY MFG.

1 EA CYLINDER (match keying to hdwr set 1) US32D SCHLAGE

1 EA PANIC (Active Leaf) 9975L US32D VON DUPRIN

2 EA HD CONC OHS 904H US32D GLYNN-JOHNSON

1 EA CLOSER P7500SS 689 NORTON

1 EA THRESHOLD 425HD-60" ALUM NATIONAL GUARD

1 EA WEATHERSTRIP S88 --- PEMKO

2 EA SWEEP 321 CN --- PEMKO

1 EA ASTRAGAL 375CR --- PEMKO

2 EA FLUSH BOLTS 580-8 (top and bottom of inactive leaf) US32D ROCKWOOD

2 EA KICK PLATE KP50 10x34 & 10x22 B4E CSK US32D BURNS MFG

Note: Existing facilities are keyed with Schlage locks. Keying shall match to existing facilities.

END OF SECTION 08 7100

4609 S. Techlink Circle Sioux Falls, SD 57106Ph: (605) 362-3753 Fax (605) 362-3759

SIOUX FALLS

ADDENDUM #2

RAPID CITY, SD SIOUX FALLS, SD BISMARCK, ND CASPER, WY CEDAR RAPIDS, IA

Date: January 8, 2020 To: Bryan Lipp, P.E. Banner Associates, Inc Brookings, SD From: Isaac Anderson / Todd Baack WPE#: BS19104 Project: Redfield Booster Station Location: Near Mellette, SD

TO: All prime contract bidders and all others to whom Drawings and Specifications have been issued by the Engineer. Acknowledge

receipt of the Addendum by inserting its number and date on the Bid Form. Failure to do so may subject bidder to disqualification. This Addendum forms a part of the Contract Documents. It modifies them as follows:

PRODUCT APPROVALS: The manufacturers and products, which are listed in the following texts, are approved for bidding. Final acceptance is contingent upon receipt and approval of final shop drawings. Manufacturer shall conform to all warranties, performances, size, etc., as the item specified. The burden of proof of the merit of the proposed substitution is upon the proposer. Those items not specifically listed by addendum shall not be approved for bidding. SECTION DESCRIPTION MANUFACTURER 23 7000-2.7 Ventilation and Air Conditioning Valent Air Management Systems 23 7000-2.7 Ventilation and Air Conditioning Trane 23 7000 Ventilation and Air Conditioning Carrier SPECIFICATIONS: SECTION 26 3213 – ENGINE GENERATORS 1. Add new subsection to section 1.3 Submittals: Contractor and generator supplier shall complete the required

submittal to the Department of Natural Resources to obtain the required permitting for the generator. This includes filling out generator, facility, and pollutant information on the forms and submitting them prior to generator installation. The Contractor shall include all costs associated with the permitting in this bid.

2. Under section 2.1 Accessories: Delete section M. Remote annunciator panel. 3. Note; the generator will not be used for Utility load shedding. 4. Note; The Owner has a contract with local suppliers for fuel and will fill the unit. SECTION 26 36 23 – Automatic Transfer Switch 1. In section 2.1.B.1; remove the following sentence; Any alternate shall be submitted for approval to the

consulting engineer at least 10 days prior to bid date. Alternate bids shall include a line-by-line clarification of the specifications marked with “D” for deviation; “E” for exception, and “C” for comply.

DRAWINGS: SHEET 18.1 POWER AND DATA PLAN 1. Refer to General Notes: Conduit in pump room 1-101 shall be PVC in lieu of ridged conduits as noted in the

specifications. 2. Refer to MDP panel schedule: Panel shall be a main lug only in lieu of main breaker. SHEET 18.3 DIAGRAMS 1. Refer to Power Riser Diagram;

a. The generator shall be 400KW in lieu of 400KVA. See specifications. End of Document