Addendum No_ 3.pdf

QUARLES 6 MG CLEARWELL No. 1 CONCRETE REPAIRS AND COATING PROJECT Addendum No. 3 (02/17/2026)

ADDENDUM NO. 3

ISSUE DATE: February 17, 2026 for

QUARLES 6MG CLEARWELL No. 1 TANK

CONCRETE REPAIRS AND COATING PROJECT

COBB COUNTY-MARIETTA WATER AUTHORITY

Bids to be received until 2:00 p.m., local time, February 26, 2026, at the office of Cobb County-Marietta Water Authority, 1170 Atlanta Industrial Drive, Marietta, Georgia, 30066

Receipt of this addendum, and all other addenda, should be acknowledged as part of your Bid (refer to Section 00410, Bid Form). Failure to acknowledge receipt of the addenda may result in rejection of the Bid. This addendum forms a part of the Contract Documents.

Please note the following CHANGES to the above referenced Contract Documents as follows:

SPECIFICATIONS

1. Section 01560, Section 3.03, ADD paragraph D., “D. Contractor is responsible for disposal of water. Water shall be contained at the tank perimeter and is not permitted to sheet flow to the site. Water may be routed to the site’s stormwater system shown in utility maps included in Appendix C (see Addendum No. 3). It is the Contractor’s responsibility to identify any permit requirements and comply with applicable regulations.”

2. Appendix C, CHANGE fly sheet to include “September 2025 Stormwater Utility Map” following “July 2009 Utility Plan Drawings”.

3. Appendix C, ADD new fly sheet at end of Appendix labeled, “EXISTING DRAWINGS:

SEPTEMBER 2025 STORMWATER UTILITY MAP” and following this fly sheet ADD drawing labeled “Stormwater Utility Map (September 2025)” included as an attachment to Addendum No. 3.

4. Section 09900, Section 1.01, CHANGE the following words in third paragraph FROM “B. Attached to these Specifications are Site Aerials and Existing Conditions Photographs (Appendix B), and Record Drawings (Appendix C).”

TO

“C. Attached to these Specifications are Existing Conditions Photographs (Appendix B), and Existing Drawings (Appendix C).”

Addendum No. 3 (02/17/2026)

5. Section 09900, Section 1.01, CHANGE the following words in the fourth paragraph FROM “C. Section Includes:”

TO

“D. Section Includes:”

DRAWINGS

1. CHANGE first sentence of Note 6 on Drawing S1 FROM “CONTRACTOR SHALL

REMOVE AND REPLACE MESH SCREENS AT TANK VENTS. MESH SCREEN

MATERIAL SHALL BE 24 GAUGE STAINLESS STEEL.”

TO

“CONTRACTOR SHALL REMOVE AND REPLACE MESH SCREENS AT TANK VENTS.

MESH SCREEN MATERIAL SHALL BE 24 GAUGE, TYPE 316, STAINLESS STEEL.”

2. ADD Note 18 to Drawing on S2 “18. EXISTING PVC CONDUIT SHALL NOT BE

COATED.”

3. CHANGE last two sentences of Note 9 on Drawing S1 FROM “WORK AREAS SHALL BE

SEEDED TO RESTORE GRASS PLANTINGS TO MATCH TYPE AND CONDITIONS AT

THE START OF THE PROJECT. THE CONTRACTOR SHALL PROVIDE A SIX MONTH

WARRANTY ON ALL LANDSCAPING WORK FROM DATE OF FINAL COMPLETION.”

TO

“WORK AREAS SHALL BE SEEDED OR SODDED TO RESTORE GRASS PLANTINGS

TO MATCH TYPE AND CONDITIONS AT THE START OF THE PROJECT. THE

CONTRACTOR IS RESPONSIBLE FOR MOWING LANDSCAPING IN THE PROJECT’S

WORK AREA AND MAINTAINING RESTORED LANDSCAPING UNTIL THE DATE OF

FINAL COMPLETION. THE OWNER WILL PROVIDE AVAILABLE WATER

CONNECTIONS FOR LANDSCAPING MAINTENANCE.”

END OF ADDENDUM NO. 3

Attachments:

1. Stormwater Utility Map (September 2025)

2. List of Pre-qualified Contractors

Questions and Responses No. 3 (02/17/2026) Page 1 of 3

QUESTIONS AND RESPONSES NO. 3

ISSUE DATE: February 17, 2026 for

QUESTION 1: Note #6 on Sheet S1 mentions the replacement of existing mesh screen at the four (4) tank roof vents with a 24 gauge stainless steel mesh screen. Please confirm if new mesh screens are to be 304 SS or 316 SS.

Q1 RESPONSE: The mesh is to be Type 316 stainless steel. See Addendum No. 3.

QUESTION 2: Regarding the restoration of the grass within the project area and parking area.

Sheet S1: Note #9 states that “work areas shall be seeded to restore grass.” First, please confirm if there are any objections with sodding instead of seeding. Second, please confirm who is to own the watering of the restored grass area for the 6 month period.

Q2 RESPONSE: Work areas may be restored by seeded or sodding to match existing grass type per Note No. 9. Contractor is responsible for maintaining restored landscaping until final completion. CCMWA will provide available water connections for landscaping maintenance. See Addendum No. 3.

QUESTION 3: Please confirm if any permits are required.

Q3 RESPONSE: Contractor is responsible for complying with permits, see specification Section 00700, Article 6.08.

QUESTION 4: Please confirm any wage requirements.

Q4 RESPONSE: No State or Federal funding is being used on this project.

QUESTION 5: Please confirm location of allowed disposal of water on site.

Q5 RESPONSE: Contractor is responsible for disposal of water. See Addendum No. 3.

Questions and Responses No. 3 (02/17/2026) Page 2 of 3

QUESTION 6: Please confirm existing coating system and thickness on the tank.

Q6 RESPONSE: Available information for existing coating systems applied at the time of construction is within the prestressed tank shop drawing on page 26 in Appendix C. A topcoat was applied subsequent to tank construction. Information could not be verified related to this application.

QUESTION 7: Please confirm no existing conduit is to be coated.

Q7 RESPONSE: Existing PVC conduit shall not be coated. See Addendum No. 3.

QUESTION 8: “Removal of existing coatings”, this refers to exterior concrete coatings only is that correct?

Q8 RESPONSE: The project includes exterior coatings and no interior tank coatings, See Note 3 on Drawing S2 for removal of exterior concrete coatings.

QUESTION 9: “Concrete Repairs”, can you expand on what repairs you anticipate? Is Cobb Co.

Marietta WA open to per-unit pricing billed via change order for certain repairs?

Q9 RESPONSE: Repair types, materials, and requirements are specified in the contract documents, see Section 00410 - Bid Form Item 3, Section 01025 - Payment Procedures, Section 03732-Concrete Repairs, and Drawings S1 and S2.

QUESTION 10: “Application of coating to yard piping and valves”, is this referring to ferrous piping connected directly to the walls/roof of the tank or does this include piping so many feet from the perimeter of the tank?

Q10 RESPONSE: Yard piping and valves in grass areas adjacent to the tank, see bid documents Section 09900 – Painting, Table 9-3, and Appendix B – Photos.

QUESTION 11: “Replacement of drainage stone around tank” and “restoring all landscaping within project work area”, Are there drawings that show the type of stone used, ID/OD/depth of that rock, and any geotextile used under it?

Q11 RESPONSE: For stone type and filter fabric see Notes 16 and 17 and the tank section on Drawing S2.

Questions and Responses No. 3 (02/17/2026) Page 3 of 3

QUESTION 12: I see there is no coating system specified, is there any restriction on manufacturers or approved suppliers I should be aware of for the coating system?

Q12 RESPONSE: For coating system requirements see Bid Documents, Section 09900 - Painting and 09901 – Tank Surface Preparation and Coating System Application, and Drawings, S1 and S2.

END OF QUESTIONS AND RESPONSES NO. 3

Attachments Addendum No. 3 (02/17/2026) Page 1 of 1

ADDENDUM NO. 3

ATTACHMENTS

for

1. Stormwater Utility Map (September 2025)

2. List of Pre-qualified Contractors

• DN Tanks of Georgia, LLC

• Utility Service Company, Inc.