IFB#259 Addendum #1

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. 1

July 29, 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. None

PART 2 - REVISIONS TO THE DRAWINGS

The following REVISIONS shall be incorporated into the DRAWINGS for the above-referenced project:

A. Drawing C010

1. Show concrete sidewalk Extension without blow up or detail to define extents.

2. See drawing Attachment A for clarification.

B. Drawing M101

1. Add text “SEE NOTE 1” to PHOTO 2 after the callout “DEMOLISH EQUIPMENT

AND CONDUIT AT THE TWO RACKS NEXT TO THE OXIDATION DITCHES.

LEAVE THE RACK POSTS IN PLACE.”

2. Add the following text at the top right corner, which states:

“NOTES:

1. SEE SPECIFICATION 01 11 00 - SUMMARY OF WORK FOR VFD

SALVAGE REQUIREMENTS AND SPECIFICATION 01 14 00 -

COORDINATION WITH OWNER'S OPERATIONS FOR SEQUENCE OF WORK

REQUIREMENTS.”

C. Drawing M201

1. Add text “SEE NOTE 5” callout to the stair shown in Section A.

2. Add Note 5 which states:

"5. COORDINATE VERTICAL DIMENSION OF CONCRETE STEP WITH

EXISTING GRADE TO PROVIDE TWO EQUAL RISER HEIGHTS."

D. Drawing E003

1. Add Note 5 which states:

“5. DO NOT INSTALL PUTTY IN THE INDICATED SEAL-OFF FITTING.

LEAVE IT UNBLOCKED FOR THE OWNER'S USE.?

All other terms and conditions of the DRAWINGS 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: What are the limits of new versus old handrail on Drawing M201?

A1: See Attachment B for clarification.

Q2: Is it acceptable to contact the equipment manufacturer and rep to get clarification on the equipment scope of supply and equipment details for the aeration equipment? If so, what is their contact information?

A2: It is acceptable to contact the equipment rep and manufacturer for the Owner furnished aeration equipment to get clarification on the equipment scope of supply and equipment details.

The rep is Dan Carter from Eco-Tech, Inc. (dcarter@eco-tech.net) and the manufacturer is

Aeration Industries International, the contact is Ben Albitz (Ben.Albitz@aireo2.com).

Q3: During the site visit, only one clarifier was in service. Will the other clarifier be in service at the time of construction? If so, can the RAS system be isolated so that work can be performed on one side of the RAS Collection Box at a time?

A3: One of the two clarifiers will be in service at the time of construction. The RAS pipe from the clarifiers to the RAS Collection Box has a valve which can be closed to isolate RAS flow into the box. The flow out of the box cannot be isolated with the existing layout, so the Contractor will need to determine a method to isolate the flow out of the box as needed to perform the work.

mailto:dcarter@eco-tech.net

PART 4 –ATTACHMENTS

A. Drawings C010 – ADD1 and CD001 – ADD1.

B. Drawing M201 with clarification.

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 this Addendum.

END OF ADDENDUM NO. 1.