IFB#259 Addendum #2

DOUGLASVILLE-DOUGLAS COUNTY

WATER AND SEWER AUTHORITY

P.O. Box 1157 | Douglasville | Georgia | 30133

INVITATION FOR BIDS

FOR

NORTHSIDE WWTP AERATION BASIN IMPROVEMENTS PROJECT

FOR

DOUGLASVILLE – DOUGLAS COUNTY WATER AND SEWER AUTHORITY

IFB# 259

ADDENDUM NO. 2

August 4, 2022

The following is a listing of additions and clarifications, and/or modifications and responses to questions that were posed by prospective bidders for the above referenced project to the Invitation for Bids originally issued on July 14, 2022, as of the effective date of this Addendum:

PART 1- REVISIONS TO THE TECHNICAL SPECIFICATIONS

A. Specification Section 01 14 00 – Coordination with Owner’s Operations

a. Delete the following text from Section1.05/B:

4. Owner will assist Contractor in dewatering process tanks, basins, conduits, and other work areas to be dewatered for shutdowns. Maintain clean and dry work area by pumping and properly disposing of fluid that accumulates in work areas.

5. Draining and Cleaning of Conduits, Tanks, and Basins: Unless otherwise specified, Owner will dewater process tanks and basins at beginning of each shutdown. Owner will flush and wash down tanks and basins with plant non-potable water. Draining and cleaning conducted by Contractor shall be as specified below:

a. Contractor shall remove liquids and solids and dispose of them at appropriate location at the Site as directed by Engineer. Contents of pipes, tanks, basins, and conduits undergoing modifications shall be transferred to existing process tanks or conduits at the Site with capacity sufficient to accept such discharges, using hoses, piping, pumps, or other means provided by Contractor. Discharge of fluids across floors is not allowed.

b. If drainage point is not available on the piping or conduit to be drained, provide a wet tap using tapping saddle and valve or other method approved by Engineer. Uncontrolled spillage of pipe’s or conduit’s contents is not allowed.

c. Spillage shall be brought to Engineer’s attention immediately, both verbally and in writing, and reported in accordance with Laws and

Regulations. Contractor shall wash down spillage to floor drains or sumps and flush the system to prevent clogging and odors. If spillage is not suitable for discharge to the drainage system, such as chemical spills, as determined by Engineer, Contractor shall remove spillage by other method, such as vactor truck, acceptable to Engineer.

PART 2 - REVISIONS TO THE DRAWINGS

A. None in this Addendum

All other terms and conditions of the DRAWINGS and SPECIFICATIONS remain unchanged.

PART 3 – QUESTIONS AND ANSWERS

The following QUESTIONS and ANSWERS shall be incorporated into the PROJECT MANUAL for the above-referenced project:

Q1: Specification Section 01 14 00. B.5 states the Owner will dewater, flush, and wash down the basins yet the section goes on to say the contractor must dispose of liquids and solids. Will the basins be clean and dry for the contractor? If the Contractor is responsible for cleaning the structures, will the Owner take debris from the basin? If sludge or grit is removed from the basin, can it be placed in the Owner's drying beds?

A1: See revision to Specification Section 01 14 00/A above for clarification. The Owner will clean the basins.

Q2: Is there an allowable duration each basin may be out of service or is one basin sufficient for plant operation and capacity requirements?

A2: At least one aeration basin must be in service at all times. One basin is sufficient to treat plant flow during construction.

Q3: What is the anticipated delivery date of the Owner provided equipment?

A3: Aeration Industries has indicated they are targeting December 2022.

Q4: What are the Contractor's responsibilities and requirements with regard to Owner-provided equipment beyond unloading and correct installation?

A4: The Contractor shall be responsible for installing the equipment as required by the

Equipment Supplier and as shown on the Drawings. The Contractor shall coordinate, attend, and assist in all aspects of equipment startup and testing, and be responsible for obtaining a

Certificate of Proper Installation and Equipment O&M Manual from the Equipment Supplier.

Q5: Will the NTP be issued after receipt of Owner-provided equipment?

A5: It is not the intent of the contract’s time for performance (as defined in the Special

Conditions) to be contingent on the delivery schedule of Owner-provided equipment. The estimated delivery date for the Aeration Equipment is December 2022. The contract NTP will be adjusted as needed to accommodate the equipment delivery; however, the NTP may not necessarily be delayed until the Aeration Equipment is delivered, as it is anticipated that the

Contractor will have multiple tasks to complete prior to said delivery.

Q6: Will the Owner extend the contract time if delivery of contractor supplied materials, for instance the gates, exceed the contact time?

A6: As provided in General Conditions, Section 5, Item D Extension of Time, ‘If delays are caused by… other contingencies clearly beyond the control of responsibility of the Contractor, the Contractor shall be entitled to a reasonable time extension to perform and complete this

Contract.’

Q7: Is the equipment listed on the Bid Form?

A7: The equipment has been pre-purchased and is not listed on the Bid Form.

Q8: What, if anything, needs to be done in the existing panel on drawing E003? Please clarify the scope of demo shown on that drawing.

A8: The DEMO shown on the drawing involves removing the wiring that powers the temporary aeration system. The other work inside the panel is described by Note 1.

PART 4 –ATTACHMENTS

A. None in this Addendum

END OF SECTION

Acknowledgment of receipt of this addendum must be signed and included in your bid submittal.

Company Name

Signature

Date

The Invitation for Bids originally issued on July 14, 2022, shall remain in full force and effect, except as specifically modified by Addenda 1 and 2.

END OF ADDENDUM NO. 2