BL011_26 ADD 1.pdf

BL011-26 Page 1 Addendum #1

April 1, 2026

ADDENDUM #1

BL011-26

Purchase of Replacement Mixers for Digesters 1 and 2 at the F. Wayne Hill Water Resources Center

I. Revisions

R1. Please replace the bid schedule with the Revised Bid Schedule attached.

R2. Please revise specifications to include the Supplemental Drawings attached.

R3. Please revise the specification to include Attachment 2: Phase 2 O&M.

II. Questions:

Q1. Can Ovivo be named as an approved manufacturer? Are Ovivo Anaerobic Sludge mixers acceptable?

A1. Requests for approval of an “approved equal” manufacturer will only be evaluated following the Bid opening. Approval of any “or equal” products submitted for consideration will be at the Owner and Engineer’s sole discretion. If submitting a bid with an equivalent, please provide all necessary documents for review.

Q2. Please provide drawings of the egg-shaped digestors.

A2. Supplemental Drawings are included in this addendum. Please see Revision R2.

Q3. Please provide the drawings and O&M referenced in the Invitation to Bid.

A3. Attachment 1 – Existing Equipment Drawings can be found in the specifications included with the Invitation to Bid. Supplemental Drawings are included in this addendum. Please see Revision R2. Attachment 2 – Phase 2 O&M is included in this addendum. Please see Revision R3.

Q4. Please confirm if VFD drive or soft started need to be supplied. If yes, please provide electrical drawings and specifications.

A4. Existing mixers do not have VFD drives or soft starters. They are not required to be supplied by project specifications unless specifically required by the bidder’s manufacturer.

Q5. Will the digesters be empty and cleaned at the time of replacement? If yes, will there be scaffolding inside as well?

A5. No, the digestor will be drained of sludge but not cleaned.

Q6. Section 43 24 13.40 Draft Tube Mixers 2.01.B: Please add WesTech as an approved manufacturer.

A6. Requests for approval of an “approved equal” manufacturer will only be evaluated following the Bid opening. Approval of any “or equal” products submitted for consideration will be at the Owner and Engineer’s sole discretion. If submitting a bid with an equivalent, please provide all necessary documents for review.

BL011-26 Page 2 Addendum #1

Q7. Please provide the attached Specification Section 43 24 13 40 Draft Tube Mixer, Attachment 1 - Existing Equipment Drawings and Attachment 2 – Phase 2 O&M.

A7. Attachment 1 – Existing Equipment Drawings can be found in the specifications included with the Invitation to Bid. Attachment 2 – Phase 2 O&M is inclued in this addendum. Please see Revision R3.

Q8. Please provide clarification for this project’s timeline.

A8. This solicitation is for purchase of Replacement Mixers for Digestors 1 and 2 only. The installation will be completed by the County’s FMS contractor. Any work beyond the purchase of these items may be detailed in future solicitations.

Q9. Please provide clarification on the number of hard copies to be required. Item 3 and Item

4.6 of the bid schedule list different requirements.

A9. Please see Revision R1.

Q10. Please provide locations for the Specification Section 43 24 13 40 Draft Tube Mixer, Attachment 1 – Exisiting Equipment Drawings, and Attachment 2 – Phase 2 O&M.

A10. Section 43 24 13 40 Draft Tube Mixer and Attachment 1 – Exisiting Equipment Drawings were distributed on Monday March 2, 2026. They can be viewed on the Gwinnett County Website and the Georgia Procurement Registry. Attachment 2 – Phase 2 O&M is inclued in this addendum. Please see Revision R3.

This addendum should be signed in the space provided below and returned with your quote. Failure to do so may result in your bid being deemed non-responsive.

Thank you, Anna West Purchasing Associate II

Company Name ___________________________________________________________________________________________

Authorized Representative_________________________________________________________________________________

BL011-26 PAGE 3R

FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN REJECTION

REVISED BID SCHEDULE

BID

ITEM

NO.

DESCRIPTION QTY MANUF. &

NO.

DELIVERY

A.R.O

UNIT

PRICE

TOTAL

PRICE

REPLACEMENT MIXERS

Mixers to include intake section, splash disc, mixer shaft, impeller, thrust and guide bearing housing, motor, motor pedestal, grease pump, grease pump motor, shaft protection sleeve, discharge section, seating ring, coatings, tools and spare parts.

2 EA $ $

2 Submittal preparation, shop drawings and submission 1 LS $ $

2.1

Vendor site visit for submittal preparation: Vendor representative to visit site to field verify and ensure that replacement equipment will match existing installation.

1 DAY $ $

Operation and Maintenance Manuals, two hard copies and one electronic copy (in editable

PDF).

1 LS $ $

4 Support to Installation Contractor

4.1

Vendor representative to provide onsite installation assistance services and inspect the final installation, including all travel, accommodation and ancillary expenses etc. One trip of 2 in-person days required per mixer installation. Two trips of two days each (anticipate to occur in 2026).

4 DAYS $ $

COMPANY NAME ____________________________________________________________________________

BL011-26 PAGE 4R

REVISED BID SCHEDULE

BID

ITEM

NO.

DESCRIPTION QTY MANUF. &

NO.

DELIVERY

A.R.O

UNIT

PRICE

TOTAL

PRICE

4.2

Field and Functional Testing:

Vendor representative to balance and supervise a test run/start-up of the equipment, including all travel, accommodation and ancillary expenses etc. Vendor to provide a start-up checklist to be implemented. One trip of 1 in-person day required per mixer.

Two trips of one day each (anticipated to occur in 2026).

2 DAYS $ $

4.3

Vendor Training: Representative to provide onsite training to the Owner’s personnel including all travel, accommodation and ancillary expenses etc. and provision of Vendors Certificate of Proper Installation.

1 DAY $ $

4.4 Cost for separate onsite day visit

of 8 hours if requested by Owner. 1 DAY $ $

4.5 Cost for separate one day training session if requested by Owner.

1 DAY $ $

4.6

Prepare and submit two hard copies and one electronic copy (in editable PDF) of the operating and training material.

1 LS $ $

TOTAL $

Notes:

1. The unit price MUST include ALL charges, including but not limited to delivery and field and start up services to a separate installation contractor.

2. If submitting an approved equivalent, please submit product cut sheets or information documents as requested.

3. Reminder to include the Manufacturer/Product Number and the Delivery A.R.O (time to receive the product after receiving the purchase order).

COMPANY NAME ____________________________________________________________________________

BL011-26 PAGE 5R

REVISED BID SCHEDULE CONTINUED

The undersigned acknowledges receipt of the following addenda, listed by number and date appearing on each:

Addendum No. Date Addendum No. Date

Certification Of Non-Collusion In Bid Preparation __________________________________________________________

Signature Date

In compliance with the attached specifications, the undersigned acknowledges all requirements outlined in the "Instructions to Vendors" and all documents referred to therein, if this bid is accepted by the Board of Commissioners within ninety (90) days of the date of bid opening, to furnish any or all of the items upon which prices are bid, at the price set opposite each item bid, delivered to the designated point(s) within the time specified in the fee schedule. By submission of this bid, I understand that Gwinnett County uses Electronic Payments for remittance of goods and services. Vendors should select their preferred method of electronic payment upon notice of award. For more information on electronic payments, please refer to the Electronic Payment information in the Instructions to Vendors.

Legal Business Name

Address

Does your company currently have a location within Gwinnett County? Yes No

Representative Signature

Printed Name

Telephone Number E-mail address

Contact Person (if someone other than the authorized representative listed above)

Telephone Number E-mail address