Page Section Paragraph

1 06/04/26 Gen Req Pg 2;

Sheet G-001

"Description of Work" reads "complete replacement of

Clarifier #2" to include "demolishing the existing structure, excavating the area for the new installation, and managing related utility work"; however, the project drawings and

Sheet G-001 General Note 1 indicates replacement of select components, blasting and painting of select components, and select electrical work. Please confirm that the scope of work for this project is to replace select interior components and complete internal repairs of remaining interior components and that the existing concrete structure is to remain in place and this is not a complete replacement of

Clarifier #2

The scope is to replace older and failing items as described in the contrct documents. Replacement of the existing concrete structure is not a part of this project.

2 06/04/26 G-001 General

Notes 1.5

Sheet G-002 General Notes 1.5 calls for a new NEMA 4X

Control Box. Please provide specifications and/or BOD for this Control Box

Bid as best as possible based on the contract documents.

3 06/04/26

C101

Keynote 4

Keynote 4 states "The contractor will be responsible to clean the interior of the basin." Please provide details and/ or specifications for this process.

The intent is to remove any sludge and/or residue that remains which would interfere with the installation of new components. The

Government is reponsible for the removal of the sludge. The contractor is responsible for removing any remnants and residue.

A power washed finish should suffice.

4 06/04/26 CD101 Keynote Note

Sheet CD101 Note indicates "Metal surface cleaning is delineated as sandblasting with particle containment". Per

EM 385-1- 1 (6-8.k), silica sand is not permitted as an abrasive media. Does the government have a preferred alternate abrasive media for this application?

There is no preferred alternate abrasive media.

5 06/04/26

CS101

Please confirm that the concrete structure does not receive paint or any specialty coating as part of this scope of work.

No specialty coatings are required.

6 06/04/26

ED101

Keynote 3 Keynote 3 references Sheet ES103 for KTR reference.

Please provide this sheet.

Typo, should say sheet ES101.

7 06/04/26 Amend 0004

Amendment 0004 extends the bid due date. Will the PPI cutoff date be extended to allow for the delayed/rescheduled site visit?

YES, PPI DUE DATE IS

EXTENDED TO TUESDAY 6/16/26

8 06/04/26 Attachment A Specs

The specification document does not contain any specifications for any of the materials, etc required by the scope of work . Please provide specifications for ALL materials, equipment, etc so pricing can be determined for specifically what is required.

Please see

"ManufacturersReplacement Parts" note 1 on Sheet CS101.

9 06/04/26

Who is the manufacturer of Clarifier #2 and what are the replacement numbers of the parts being replaced? Please provide this information so we can contact them in reqards to getting the required replacement parts.

Please see PPI response #8.

10 06/04/26 CS502

please provide specifications and part numbers for materials listed on CS502 items material notes 1 thru 3

Please see PPI response #8.

11 06/04/26 CS503

please provide specifications and part numbers for materials listed on CS503 items material notes 1 thru 3

Please see PPI response #8.

12 06/04/26 ES101 Keynote 6

Keynote 6 calls for salvaged conductors to be extended to an over-current device in control panel. The section view on the same sheet depicts a box at this Keynote immediately adjacent to Clarifier #2. However, during site visit observations, an enclosure does not currently exist in this location. Is a new enclosure required in the location of

KN6? If so, please provide details and specifications.

This is a new control panel. The existing control panel interior and interior is for reference.

Pre-Proposal Inquiry Submission Form

Solicitation #: N40085-26-R-0174

Project Title: Wastewater Treatment Plant Clarifier #2 Replacement

ResponsePPI # Date

Submitted

LEAVE

BLANK

Reference Question

13 06/04/26 ES101 Keynote 5

Keynote 5 indicates that RGS conduit should be installed between the enclosure identified in KN6 and the Control

Panel Enclosure. Should this conduit route back to the existing Control Panel located at Clarifier #1? If so, please provide as-builts for the control panel and/or a sequence of operations with details for how Clarifier #2 is to be integrated into the existing control sequence. Alternatively, does this project require a dedicated Control Panel for

Clarifier #2? If so, please provide details and specifications including desired operational I/O requirements.

No. See response to item #12.

14 06/04/26 G-001 General Note 1.4 General Note 1.4, please provide complete specifications for the replacement topside gear box and drive unit.

Please see PPI response #8.

15 06/09/26 Will a control panel and integration services be required for this project?

Yes

16 06/09/26 If a control panel is required, please provide the associated details and specifications.

Yes. See response to item #12.

17 06/09/26 If an integration program is required, please provide the relevant details and requirements.

No integration program is required.

18 06/09/26 Will BAA, BABA, TAA, and/or USMCA compliant materials be acceptable for this project?

Yes

19 06/09/26 ES101

Drawing ES-101 (“Keynotes”), Note 4, calls for ¾” RGS conduit. The existing conduit appears to be PVC-RGS.

Please confirm whether RGS or PVC-RGS conduit and fittings are required for this project.

RGS

20 06/09/26 E-001

Drawing E-001 (“General Notes”), Notes 7 and 12, reference requirements for work that does not appear to be included in the project scope. Please confirm whether any receptacle, switch, or lighting work is required.

There is no receptacle, switch, or lighting work required.

21 06/09/26 ED101

Drawing ES103, referenced in Keynote 3 on Drawing

ED101, was not included in the drawing package. Please provide a copy of Drawing ES103.

Typo, should say sheet ES101.

22 06/09/26

Is there a preferred method for containment of blast media?

Should the contractor plan to install a temporary structure/tent over Clarifier #2 or is wet/vacuum blasting acceptable to contain media?

Thre is no preferred method for blast media containment.

23 06/09/26 C-101

Note 4 states the contractor is responsible for cleaning the interior of the basin. Is standard pressure washing acceptable or should the contractor assume an SSPC SP-13 level of effort for cleaning of prep of existing concrete?

Please see PPI response #3.

24 06/09/26 Please confirm no coatings are required for existing concrete after cleaning.

Please see PPI response #5.

25 06/09/26

Is disassembly of select components followed by blasting and coating off-site a viable option if evaluated to be cost-effective?

Yes

26 06/09/26

Only Division 01 was provided with the project specifications. Will applicable sections of Division 26 -

Electrical and Division 46 - Water and Wastewater

Treatment Equipment be provided via amendment?

No

27 06/09/26 Please confirm that a cost-loaded schedule is required for this project.

A cost loaded schedule is required.

28 06/09/26

Please confirm the QC Manager and SSHO are unable to serve in combined role and this project requires a minimum of two oversight personnel.

They may not serve in a combined role.