HomeMy WebLinkAboutAddendum No. 1
Page 1 of 3 Addendum No. 1
LIFT STATION AND FORCE MAIN REHAB PHASE 2 (GROUP 1B)
PROJECT NO. WWP-27-04059
ADDENDUM NO. 1
Date of Addendum Issue: January 4, 2022
Due Date for Bids: 2:00 pm on January 11, 2022
Date of Bid Opening: 3:00 pm on January 11, 2022
To: ALL PLAN HOLDERS AND/OR PROSPECTIVE BIDDERS
The following changes, additions, and/or deletions are hereby made a part of the project bid documents
for the Lift Station and Force Main Rehab Phase 2 (Group 1B) project and shall have the same effect as if
set forth therein. Bidders shall acknowledge receipt and acceptance of this Addendum No. 1 by signing in
the space provided below and submitting the signed addendum with the bid package. Failure to
acknowledge receipt of this Addendum may result in your bid proposal being disqualified.
CALL FOR BIDS
• DELETE : Delete “Pump impeller replacement” from the bullet item “Mechanical
Improvements”
SCOPE OF WORK
• DELETE : Delete “Pump impeller replacement” from the bullet item “Mechanical
Improvements”
SPECIAL PROVISIONS
• DELETE & REPLACE: Delete Section 1-07.18(5)G Builders Risk from the Special Provisions
and Replace with the following:
1-07.18(5)G Builders Risk
Section 1-07.18(G) Delete this section in its entirety and replace with the following: Will be required up to the amount of the completed value of a new building or major project.
TECHNICAL SPECIFICATIONS – DIVISION 11 - EQUIPMENT
• DELETE: Delete Sections 11.05 Common Work for Equipment, 11.10 Pumps,
11.10.05 Common Work for Pumps
• ADD: Add the following to Section 11.15 Temporary Sewage Pumping
During Coating Removal at Devil’s Elbow Lift Station, Part 1 – General,
Project Conditions.
Page 2 of 3 Addendum No. 1
• Estimated existing pump design point is 450 gallons per
minute at 155’ total discharge head.
PLANS
• DELETE & REPLACE: Delete Drawing M101 (Sheet 7 of 20) and Replace with attached
Drawing M101 (Sheet 7 of 20). Revisions include:
• Addition of a 6-inch ductile iron spool and supports.
• Modified construction notes
1. Question: Concerning the removal of the existing coating at Devil’s Elbow LS, is there knowledge of
what the existing coating is?
Answer: The original plans for the wet well indicate a two part hybrid epoxy with an embedded
nylong mesh equal to Sentry Polymers “Semstone 145-S” with scrim. However, we believe
the contractor substituted Raven Liner.
2. Question: Is the intent of the project to recoat the wetwell with the product identified in 9.08.9(1)? If
so, will bypassing be in service during recoating?
Answer: No, the interior of the wetwell will not be recoated. The wall will be bare concrete. The
temporary bypass is needed during the existing coating removal. The temporary pumping
scenario is outlined in Division 11 of the technical specifications.
3. Question: What are the dimensions of the wetwell?
Answer: The existing wetwell is 12 feet inside diameter and 17 feet inside height. The anticipated
area of the coating removal is approximately 450 SF as shown on DWG No. G001.
4. Question: The paint spec calls for pipe to be coated. I see on the plans a little bit of pipe that is going
to be replaced; are you wanting just the new pipe to be coated or all the existing pipe?
Answer: The only existing piping that would be disturbed is at Devil’s Elbow. A section of pipe will
need to be cut and reused. The cut ends will need to be touched up, but the remaining
existing pipe will not be recoated.
This Addendum consists of three (3) pages and has one (1) attachment.
ALL OTHER REQUIREMENTS OF THE CONTRACT DOCUMENTS REMAIN IN EFFECT
Sincerely,
Joe Stowell
Wastewater Utility Manager
City of Renton Wastewater Utility
POTENTIAL BIDDERS QUESTIONS/CLARIFICATIONS
Page 3 of 3 Addendum No. 1
All Bidders must sign this Addendum No. 1 in the space provided below and attach the signed
Addendum No. 1 to the Formal Bid Proposal.
Signature: ______________________________ Title: ________________________________
Company: _____________________________________ Date: ___________________________