Addendum 1
146 KB Posted
- Attached to
- 2022 Coatings Program
- Solicitation number
- MDJ-5160
- Issued by
- Cobb County, Georgia
About this file
This Addendum No. 1 document issued on July 11, 2022, provides specification revisions and clarifications for the 2022 Coatings Program contract opportunity for the Cobb County-Marietta Water Authority. The addendum modifies five specific items within Section 09900 of the contract specifications, including revisions to pressure washing requirements for filter cell concrete walls, BV5 valve and actuator coating specifications, filter control console quantities (reduced from 20 to 10 units), sludge conditioning tank coating scope (excluding connected piping), and concrete surface preparation methods. Additionally, the addendum addresses a question raised during the project walkdown at the Quarles Water Treatment Plant regarding an alternative surface preparation method, authorizing the use of diamond grinding with hand tools for vertical concrete column surfaces in lieu of blasting, provided the work complies with paint manufacturer recommendations and SSPC-13 standards. The proposal submission deadline is July 22, 2022, at 2:00 p.m. local time, and all bidders are required to acknowledge receipt of this addendum and any other addenda as part of their bid submission to avoid rejection.
The coatings work will be performed at two water treatment facilities in the Cobb County area: the Hugh A. Wyckoff Water Treatment Plant in Acworth and the James E. Quarles Water Treatment Plant in Marietta. The contract will result in a single award covering coating pipes, equipment, and other items at both locations, with a completion timeline of 140 consecutive calendar days from the project commencement date. No pricing terms, funding sources, set-asides, or incumbent contractor information is specified in this addendum document.
Text of this file
2022 Coatings Program Questions and Responses No. 1 (7/11/22)
ADDENDUM NO. 1
ISSUE DATE: July 11, 2022 for
2022 COATINGS PROGRAM
COBB COUNTY-MARIETTA WATER AUTHORITY
Proposals to be received until 2:00 p.m., local time, July 22, 2022, 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 09900 1.01.A.1.a.ii REPLACE text “Pressure wash all filter cell concrete walls in pipe gallery from top of grating to ceiling.” with “Pressure wash filter cell pipe gallery concrete walls between Filters 1 through 4 from top of grating to ceiling.”
2. Section 09900 1.01.A.1.a.ii REPLACE text “Coat BV5 valve and actuator, coating to extend 12 inches along header pipe beyond valve” with “Coat BV5 valve and actuator, coating to extend to concrete wall on west side and 12 inches along header pipe beyond valve on remaining sides.”
3. Section 09900 1.01.A.2.b.i REPLACE text “Filter control consoles throughout gallery (quantity 20)” with “Filter control consoles throughout gallery (quantity 10) includes exterior surfaces and edges of panel frames.”
4. Section 09900 1.01.A.1.c.i REPLACE text “Sludge Conditioning Tanks No. 1 and No. 2” with “Sludge Conditioning Tanks No. 1 and No. 2. Piping connected to tanks is not to be coated.”
5. Section 09900 3.02.D.3 ADD sentence to end of paragraph “Faces of concrete columns may be prepared by griding the surface with hand tools in accordance with the paint manufacturer’s recommendations.”
- End Addendum No. 1 –
Attachments
1. Questions and Responses No. 1.
2022 Coatings Program Questions and Responses No. 1 (7/11/22)
QUESTIONS AND RESPONSES NO. 1
ISSUE DATE: July 11, 2022 for
2022 COATINGS PROGRAM
COBB COUNTY-MARIETTA WATER AUTHORITY
QUESTION 1: It was discussed on the walkdown at Quarles of possibly using diamond grinding for the vertical concrete beams instead of blasting as listed in Section 09900, Page 09900-15, D.
Concrete Surface Preparation, 3. Prepare concrete surfaces SSPC13- Concrete Surface Preparation.
Q1 RESPONSE: Section 09900 is revised in this addendum to allow griding for vertical column (not beam) surfaces.
Other files
| File | Type | Posted |
|---|---|---|
| Award Information | — | |
| 2022 Coatings Program | — |
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