EO-3529 GWTP Valve Replace P1 Addendum 3 Letter.pdf

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1800 E. Wardlow Road

562.570.2300 │LBUtilities.org

April 27, 2023

ADDENDUM No. 3

TO THE CONTRACT DOCUMENTS

Long Beach Utilities Department Long Beach, California Specifications No. WD-05-23 Drawing No. EO-3529 Groundwater Treatment Plant Filter Gallery Valve Rehabilitation Project Phase 1 - Valve and Actuator Purchase

TO ALL PLAN HOLDERS:

The following amendment is hereby made a part of the Contract Documents for the subject project, as fully and completely as if the same were set forth therein. This Addendum No. 3 consists of pages ADD3-1 through ADD3-4.

QUESTIONS & ANSWERS

The following questions were submitted in writing for the above-referenced project.

Responses to the question are included.

1. On the delivery schedule, you have three dates: Shutdown 1, Shutdown 2, and Shutdown 3. The valves are stored locally, and they are crated. These will have to be transported from the warehouse to the jobsite. Will the entire individual shutdown valve count be shipped to the jobsite? Will there be only three shipments – one for shutdown 1, one for shutdown 2 and one for shutdown 3?

Response: Vendors should expect three deliveries from the warehouse to the jobsite, one for each shutdown as outlined in Appendix B.

2. Local testing – We will leak and hydro test the valves once they arrive to the jobsite however cycle testing with the electric actuator will not be possible unless there is required voltage at the jobsite. In addition, issues that will arise testing torque tube extension bonnet assemblies in the horizontal position. The valves with torque tube extension bonnets must be cycle tested in the position they are installed. Cycle testing the valves with the torque tubes in the horizontal position would not be a valid test as the stresses are different on them horizontally vs

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vertically. To provide a correct cycle test the valves must be tested in the position they will be installed. With the torque tube lengths, the only option would be to have this done at the factory. Can third party verification at the manufacturers plant of leak, hydro and cycle testing be substituted for local testing? If not, could sending a District inspector, at no cost to the District, to the manufacturers’ facilities to witness the tests be a substitution for the local requirement?

Response: Per question 18 in Addendum 2, local testing shall include visual inspection, leak/seat test, exercise the valve through open/close cycles, and hydrostatic test to rated pressure. The valves with torque tube extension bonnets can be tested without the extension bonnets. Manual operation of the valve is acceptable for local testing. All tests should be performed in the position they will be installed in the field. No third-party verification or sending a District Inspector to the manufacturer’s facility will be substituted for local testing. Specifications 33 12 14, 1.4 C. & 33 12 15, 1.4 C. state factory testing requirements and all factory test reports shall be submitted to the Owner prior to shipment.

3. You are not stating that the valves with torque tube extension bonnets need to be shipped as a complete unit. This needs to be done so that the correct torque tube extension bonnet is paired to the correct valve. There will be machining tolerances between the different units, and you want to make sure that the valve and torque tube extension bonnet are not mixed up in the field during installation. If they are then the cycle test done at the factory would be invalid for that valve and torque tube extension bonnet assembly.

Response: Vendors shall ensure that the valves and torque tube extension bonnets are paired at final installation the same as they were paired when factory tested. Vendor is responsible for shipping these materials so that the valve and torque tube extension bonnet are not mixed up when tested locally and when they are delivered to the jobsite.

4. Since the 14” valves are on the air scour lines is there a system engineering requirement for NSF-61 as they will not be touching the potable water?

Response: NSF-61 certification is not necessary for the 14” air scour valves as they will not be in contact with water. Please refer to items 3.01 & 3.02 in Addendum No. 3 where the NSF-61 certificate requirement has been removed.

5. The 12” Crane Centerline 200 valves that will have retrofit electric actuators on them are called out on the bid form as flanged. I believe they are lug style. Please confirm.

Response: Correct, this is a typo. It is a lug style valve.

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CLARIFICATIONS

The following clarifications, additions, and deletions are made to the above-referenced Drawings and/or Specifications.

SPECIFICATIONS:

Item No.: 3.01 Location: Section 33 12 15 Industrial Lug Style Butterfly Valves, Item 1.6 A.

Change: Delete “Submit NSF-61 certificate” row item from table.

Item No.: 3.02 Location: Section 33 12 15 Industrial Lug Style Butterfly Valves, Item 2.2 B.

Change: Delete “NSF listing” row item from table.

Item No.: 3.03 Location: Notice Inviting Bids Chage: Replace page 6 with page shown in ADD3-4.

ADDITIONAL INFORMATION FOR CONTRACTOR:

The Addenda Acknowledgment section provided in the Bid Form and a copy of Addendum No. 3 must accompany the Bid Submittal.

Questions regarding the project shall be directed to Mr. Nikolas Baykal, Nikolas.Baykal@lbwater.org, at (562) 570-2347.

Sincerely, Robert J. Verceles, P.E., Director of Engineering/Chief Engineer cc: Wendy Chen, P.E., Manager of Engineering

Nikolas Baykal, P.E., Civil Engineer

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NOTICE INVITING BIDS

Bids are invited by the Long Beach Utilities to furnish and deliver to the Long Beach Utilities (LBU) in accordance with Specifications WD-05-23 Groundwater Treatment Plant Filter Gallery Valve Rehabilitation Project Phase I – Valve and Actuator Purchase.

Specifications WD-05-23 is available online https://longbeachbuys.buyspeed.com/bso/ under the bid specification number and via email request to nikolas.baykal@lbutilities.org.

LBU will accept questions within the deadlines listed below. All inquiries regarding this invitation must be submitted in writing via email only to nikolas.baykal@lbutilities.org by the deadline listed below. Responses to the questions will be posted on longbeachbuys.com under the bid invitation number. All Bidders are recommended to visit the abovementioned website on a regular basis as the responses may be posted earlier than the date listed below.

Deadlines DATE/TIME

Optional Pre-bid Meeting 04/04/23 @ 10:00am at LBU

Groundwater Treatment Plant located at 2950 Redondo Ave., Long Beach, CA, 90806

Question Submittal 04/19/23 @ 4:30 p.m.

Bid Due 05/10/23 @ 4:00 p.m.

Bids are to be received by Wednesday, May 10, 2023 no later than 4:00 p.m. through Long Beach Buys. Bids received after the due date and time will be rejected. The Board of Utilities Commissioners has the right to reject all bids. Notice of Intent to Award will be posted on Long Beach Buys under the bid invitation once a BIDDER has been selected.

Bids shall be submitted as follows:

The proposals shall be submitted electronically to The Board of Utilities Commissioners of the City of Long Beach, California, utilizing the Department’s bid management system, Long Beach Buys. Please visit the Department’s website www.longbeach.gov/finance/business-info/purchasing-division/ “Register with Long Beach Buys” and become a registered bidder at https://longbeachbuys.buyspeed.com/bso/. All documents may be downloaded by registered bidders, free of charge.

The Proposer shall submit an electronic version in Portable Document Format (PDF) of their Bids in the Long Beach Buys system. Bids received after the deadline will not be considered.

Department will not be responsible for submittals that are not received in Long Beach Buys.