Addendum 1 23120_03 Replacement of Existing F.pdf

11/13/2024

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5800 Feldspar Way Phone 205.733.9696 Hoover, Alabama 35244 Fax 205.733.9697 www.inisteengineering.org

ADDENDUM NO. 1

OWNER: THE CITY OF CALHOUN UTILITIES

PROJECT: REPLACEMENT OF EXISTING FILTER MEDIA WITH

GRANULAR ACTIVATED CARBON AT THE MAULDIN

ROAD WATER TREATMENT PLANT

INSITE PROJECT No.: 23120.03

The Contractor shall incorporate the following changes into the Contract Documents and include the cost of all changes listed herein in his proposed contract prices. The Contractor must acknowledge receipt of this Addendum on Page 1 of the Bid Form. The above referenced Contract Documents are hereby amended as described below:

Changes to Specifications:

A1.1 Section 000000 – TABLE OF CONTENTS: Add Section Appendix B – Calgon

Carbon Corporation Filtrasorb 820 and CMR 820 Specifications to the Appendices.

A1.2 Section 004143 – BID FORM – STIPULATED SUM (SINGLE-PRIME

CONTRACT): Replace Section 004143 in its entirety with Section 004143 EJCDC C-410, BID FORM FOR CONSTRUCTION CONTRACTS attached.

A1.3 Section 011000 – SUMMARY: Replace Section 011000 in its entirety with

Section 011000 attached.

A1.4 Section Appendix A – TYPICAL FILTER PLAN AND SECTIONS: Replace

Section Appendix A in its entirety with Section Appendix A attached.

A1.5 Add Section Appendix B – CALGON CARBON CORPORATION FILTRASORB

820 AND CMR 820 SPECIFICATIONS.

Changes to Drawings

None.

Other Clarifications

Q1.1 Can we use a slurry educator to move the media?

A1.1 Means and methods are the responsibility of the contractor.

Q1.2 Is ample water available to operate the educator and will we be required to pay for the water usage?

A1.2 There is a nearby hydrant that can be hooked to, and the Owner will not charge for the water.

ADDENDUM NO. 1

THE CITY OF CALHOUN UTILITIES

REPLACEMENT OF EXISTING FILTER MEDIA WITH GRANULAR ACTIVATED

CARBON AT THE MAULDIN ROAD WATER TREATMENT PLANT

NOVEMBER 12, 2024

Q1.3 Is there a disposal site available for the old media or do we need to haul it offsite to a location that we procure?

A1.3 The contractor will be responsible for procure of an offsite location. All haul off must be disposed of in accordance with ALL Federal, State, and Local regulations and guidelines.

Q1.4 Are the filters inside or outside?

A1.4 The filters are locates inside.

Q1.5 What kind of bottoms are in these filters?

A1.5 The bottoms have Leupold Universal Type SL underdrain w/ IMS cap.

Q1.6 Are the two media suppliers on the plan holders list approved for this project?

A1.6 Currently Calgon Carbon Corporation is approved for this project.

Attachments: Section 004143 EJCDC C-410, Bid Form for Construction Contracts Section 011000 – Summary Section Appendix A – Typical Filter Plan and Sections

Section Appendix B – Calgon Carbon Corporation Filtrasorb 820 and CMR 820 Specifications

END OF ADDENDUM NO. 1

EJCDC® C-410, Bid Form for Construction Contracts.

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved.

This document has important legal consequences; consultation with an attorney is encouraged with respect to its use or modification. This document should be adapted to the particular circumstances of the contemplated Project and the controlling Laws and Regulations.

BID FORM

FOR CONSTRUCTION CONTRACTS

FOR THE

REPLACEMENT OF EXISTING FILTER MEDIA WITH GRANULAR ACTIVATED CARBON AT THE

MAULDIN ROAD WATER TREATMENT PLANT (ADDENDUM NO. 1)

Copyright © 2013:

Endorsed by

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved.

National Society of Professional Engineers

1420 King Street, Alexandria, VA 22314-2794

(703) 684-2882 www.nspe.org

American Council of Engineering Companies

1015 15th Street N.W., Washington, DC 20005

(202) 347-7474 www.acec.org

American Society of Civil Engineers

1801 Alexander Bell Drive, Reston, VA 20191-4400

(800) 548-2723 www.asce.org

The copyright for this EJCDC document is owned jointly by the three sponsoring organizations listed above. The National Society of Professional Engineers is the Copyright Administrator for the EJCDC documents; please direct all inquiries regarding EJCDC copyrights to NSPE.

NOTE: EJCDC publications may be purchased at www.ejcdc.org, or from any of the sponsoring organizations above.

http://www.nspe.org/ http://www.acec.org/ http://www.asce.org/ http://www.ejcdc.org/

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page i

BID FORM

REPLACEMENT OF EXISTING FILTER MEDIA WITH GRANULAR ACTIVATED

CARBON AT THE MAULDIN ROAD WATER TREATMENT PLANT (ADDENDUM NO. 1)

INSITE PROJECT NO 23120.03

TABLE OF CONTENTS

Page

ARTICLE 1 – Bid Recipient ARTICLE 2 – Bidder’s Acknowledgements ARTICLE 3 – Bidder’s Representations ARTICLE 4 – Bidder’s Certification ARTICLE 5 – Basis of Bid ARTICLE 6 – Time of Completion ARTICLE 7 – Attachments to this Bid ARTICLE 8 – Defined Terms ARTICLE 9 – Bid Submittal

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 1

ARTICLE 1 – BID RECIPIENT

1.01 This Bid is submitted to:

MARGARET BOYD, PURCHASING DIRECTOR

CITY OF CALHOUN UTILITIES

700 W LINE STREET

CALHOUN, GA 30701

1.02 The undersigned Bidder proposes and agrees, if this Bid is accepted, to enter into an Agreement with Owner in the form included in the Bidding Documents to perform all Work as specified or indicated in the Bidding Documents for the prices and within the times indicated in this Bid and in accordance with the other terms and conditions of the Bidding Documents.

ARTICLE 2 – BIDDER’S ACKNOWLEDGEMENTS

2.01 Bidder accepts all of the terms and conditions of the Instructions to Bidders, including without limitation those dealing with the disposition of Bid security. This Bid will remain subject to acceptance for 90 days after the Bid opening, or for such longer period of time that Bidder may agree to in writing upon request of Owner.

ARTICLE 3 – BIDDER’S REPRESENTATIONS

3.01 In submitting this Bid, Bidder represents that:

A. Bidder has examined and carefully studied the Bidding Documents, and any data and reference items identified in the Bidding Documents, and hereby acknowledges receipt of the following Addenda:

Addendum No. Addendum, Date

B. Bidder has visited the Site, conducted a thorough, alert visual examination of the Site and adjacent areas, and become familiar with and satisfied itself as to the general, local, and Site conditions that may affect cost, progress, and performance of the Work.

C. Bidder is familiar with and has satisfied itself as to all Laws and Regulations that may affect cost, progress, and performance of the Work.

D. Bidder has carefully studied all: (1) reports of explorations and tests of subsurface conditions at or adjacent to the Site and all drawings of physical conditions relating to existing surface or subsurface structures at the Site that have been identified in the Supplementary Conditions, especially with respect to Technical Data in such reports and drawings, and (2) reports and drawings relating to Hazardous Environmental Conditions, if any, at or adjacent to the Site that have been identified in the Supplementary Conditions, especially with respect to Technical Data in such reports and drawings.

E. Bidder has considered the information known to Bidder itself; information commonly known to contractors doing business in the locality of the Site; information and observations obtained from visits to the Site; the Bidding Documents; and any Site-related reports and

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 2 drawings identified in the Bidding Documents, with respect to the effect of such information, observations, and documents on (1) the cost, progress, and performance of the Work; (2) the means, methods, techniques, sequences, and procedures of construction to be employed by Bidder; and (3) Bidder’s safety precautions and programs.

F. Bidder agrees, based on the information and observations referred to in the preceding paragraph, that no further examinations, investigations, explorations, tests, studies, or data are necessary for the determination of this Bid for performance of the Work at the price bid and within the times required, and in accordance with the other terms and conditions of the Bidding Documents.

G. Bidder is aware of the general nature of work to be performed by Owner and others at the Site that relates to the Work as indicated in the Bidding Documents.

H. Bidder has given Engineer written notice of all conflicts, errors, ambiguities, or discrepancies that Bidder has discovered in the Bidding Documents, and confirms that the written resolution thereof by Engineer is acceptable to Bidder.

I. The Bidding Documents are generally sufficient to indicate and convey understanding of all terms and conditions for the performance and furnishing of the Work.

J. The submission of this Bid constitutes an incontrovertible representation by Bidder that Bidder has complied with every requirement of this Article, and that without exception the Bid and all prices in the Bid are premised upon performing and furnishing the Work required by the Bidding Documents.

ARTICLE 4 – BIDDER’S CERTIFICATION

4.01 Bidder certifies that:

A. This Bid is genuine and not made in the interest of or on behalf of any undisclosed individual or entity and is not submitted in conformity with any collusive agreement or rules of any group, association, organization, or corporation;

B. Bidder has not directly or indirectly induced or solicited any other Bidder to submit a false or sham Bid;

C. Bidder has not solicited or induced any individual or entity to refrain from bidding; and

D. Bidder has not engaged in corrupt, fraudulent, collusive, or coercive practices in competing for the Contract. For the purposes of this Paragraph 4.01.D:

1. “corrupt practice” means the offering, giving, receiving, or soliciting of any thing of value likely to influence the action of a public official in the bidding process;

2. “fraudulent practice” means an intentional misrepresentation of facts made (a) to influence the bidding process to the detriment of Owner, (b) to establish bid prices at artificial non-competitive levels, or (c) to deprive Owner of the benefits of free and open competition;

3. “collusive practice” means a scheme or arrangement between two or more Bidders, with or without the knowledge of Owner, a purpose of which is to establish bid prices at artificial, non-competitive levels; and

4. “coercive practice” means harming or threatening to harm, directly or indirectly, persons or their property to influence their participation in the bidding process or affect the e execution of the Contract.

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 3

ARTICLE 5 – BASIS OF BID

5.01 Bidder will complete the Work in accordance with the Contract Documents for the following price(s):

A. Filter Information:

1. 16 Filters

2. Each Bay, Approximately 185 SF (Four (4) Basins – 15’ x 12”, Twelve (12) Basins 14’ x 13’)

B. Volume Per Filter:

1. 24” of GAC: 185 SF x 24” of GAC yields 370 CUFT or Approximately 12,200 pounds of GAC per filter.

C. Total Volume of 16 Filters:

1. Approximately 5,920 CUFT or 195,200 pounds.

D. Pricing

Item No. Description Unit

Estimated Quantity Bid Unit Price Total Bid Price

24” of Virgin Granular Activated Carbon Installation in Filters 5 - 16, Removal and proper disposal of existing anthracite in Filters 5 – 16, .

Furnish and Install, Per Each.

16 EA $ $

Granular Activated Carbon Removal, return, and custom activate GAC from Filters 1 – 4 for future use. Furnish and Install, Per Each

4 EA

Virgin Granular Activated Carbon - Removal, Transportation, Reactivation, Storage and Installation of 100% Virgin GAC for

(4) filters (Swing Load), Per Each

4 EA

Granular Activated Carbon Changeout - Removal, Transportation, Reactivation, and Installation of GAC for filters including up to 15% makeup (Custom Reactivation), Furnish and Install, Per Each

48 EA

TOTAL AMOUNT OF BASE BID (NUMBERS) $______________________________

(WORDS) ______________________________________________________________________

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 4

SCHEDULE OF PAY ITEMS

A. 24” of Virgin Granular Activated Carbon…. (Bid Item No. 1)

1. Basis of Measurement: Per Each.

2. Basis of Payment: Such payment shall be full compensation for the removal and proper disposal (ALL Federal, State, and Local disposal regulations and guidelines shall apply.) of existing 18” of anthracite media, installation of 24” of Virgin Granular Activated Carbon (Calgon Filtrasorb 820 or Pre-Approved Equivalent) in Filters 5 - 16, including all incidentals to the project such as tools, pumps, labor, etc. of all work shown on the Contract Documents including all other work necessary for and incidental to completion of the work.

B. Granular Activated Carbon Removal…. (Bid Item No. 2)

1. Basis of Measurement: Per Each.

2. Basis of Payment: Such payment shall be full compensation for the removal of

24” of Granular Activated Carbon in Filters 1 - 4, return, and custom reactivation including up to 15% makeup for future use in filters, including all incidentals to the project such as tools, pumps, labor, etc. of all work shown on the Contract Documents including all other work necessary for and incidental to completion of the work.

C. Virgin Granular Activated Carbon…. (Bid Item No. 3)

1. Basis of Measurement: Per Each.

2. Basis of Payment: Such payment shall be full compensation for Virgin Granular

Activated Carbon shelf ready Swing Loads, the removal of 24” of Granular Activated Carbon, return, and custom reactivation including all incidentals to the project such as tools, pumps, labor, etc. of all work shown on the Contract Documents including all other work necessary for and incidental to completion of the work.

D. Granular Activated Carbon Changeout (Bid Item No. 4)

1. Basis of Measurement: Per Each.

2. Basis of Payment: Such payment shall be full compensation for Granular

Activated Carbon Changeouts, including the removal of 24” of Granular Activated Carbon, return, and custom reactivation including up to 15% makeup including all incidentals to the project such as tools, pumps, labor, etc. of all work shown on the Contract Documents including all other work necessary for and incidental to completion of the work.

3. All Changeouts must be performed within 365 days.

All specified cash allowances are included in the price(s) set forth above, and have been computed in accordance with Paragraph 11.02 of the General Conditions.

Where Unit Prices are listed on the Bid Form, Unit Prices have been computed in accordance with Paragraph 11.03.B of the General Conditions.

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 5

Bidder acknowledges that estimated quantities are not guaranteed, and are solely for the purpose of comparison of Bids, and final payment for all unit price Bid items will be based on actual quantities, determined as provided in the Contract Documents.

ARTICLE 6 – TIME OF COMPLETION

6.01 Bidder agrees that the Work will be substantially complete within 60 calendar days after the date when the Contract Times commence to run as provided in Paragraph 4.01 of the General Conditions, and will be completed and ready for final payment in accordance with Paragraph

15.06 of the General Conditions within 90 calendar days after the date when the Contract Times commence to run.

6.02 Bidder accepts the provisions of the Agreement as to liquidated damages.

ARTICLE 7 – ATTACHMENTS TO THIS BID

7.01 The following documents are submitted with and made a condition of this Bid:

A. Required Bid security in the form of Bid Bond.

ARTICLE 8 – DEFINED TERMS

8.01 The terms used in this Bid with initial capital letters have the meanings stated in the Instructions to Bidders, the General Conditions, and the Supplementary Conditions.

ARTICLE 9 – BID SUBMITTAL

9.01 This Bid is submitted by:

If Bidder is:

An Individual

Name (typed or printed):

By:

(Individual’s signature)

Doing business as:

A Partnership

Partnership Name:

By:

(Signature of general partner -- attach evidence of authority to sign)

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 6

A Corporation

Corporation Name:

(SEAL)

State of Incorporation:

Type (General Business, Professional, Service, Limited Liability):_______

By:

(Signature -- attach evidence of authority to sign)

Name (typed or printed):

Title:

(CORPORATE SEAL)

Attest

Date of Qualification to do business in [State where Project is located] is

A Joint Venture

Name of Joint Venture:

First Joint Venturer Name:

(SEAL)

By:

(Signature of first joint venture partner -- attach evidence of authority to sign)

Title:

Second Joint Venturer Name: (SEAL)

By:

(Signature of second joint venture partner -- attach evidence of authority to sign)

Title:

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 7

(Each joint venturer must sign. The manner of signing for each individual, partnership, and corporation that is a party to the joint venture should be in the manner indicated above.)

Bidder's Business Address

Phone No. _____________________________________ Fax No.

E-mail ______________________________ _______

SUBMITTED on , 20____.

Georgia General Contractor License No. .

WWW.INSITEENGINEERING.ORG

SUMMARY (ADDENDUM NO. 1) 011000 - 1

SECTION 011000 – SUMMARY (ADDENDUM NO. 1)

PART 1 - GENERAL

1.1 SUMMARY

A. This project is for the remediation of the grout flooring in the clarifier and all necessary appurtenances to successfully complete the project.

B. Section Includes:

1. Contract description.

2. Work by Owner or other Work at the Site.

3. Owner-furnished products.

4. Contractor's use of Site and premises.

5. Future work.

6. Work sequence.

7. Owner occupancy.

8. Permits.

9. Specification conventions.

1.2 CONTRACT DESCRIPTION

A. Work of the Project the removal of the existing mixed media filter media and replacement with granular activated carbon and all necessary appurtenances to successfully complete the project at the Mauldin Road Water Treatment Plant in Calhoun, Georgia.

1.3 WORK BY OWNER OR OTHERS

A. Owner will not be installing any items or performing any work.

1.4 OWNER-FURNISHED PRODUCTS

1. N/A

1.5 CONTRACTOR'S USE OF SITE

A. Access to Site: Limited to Owner and Contractor.

B. Contractor shall limit his use of the premises for work and for storage, to allow for Owner occupancy and continuous operation of all facilities in the work area.

C. Contractor shall coordinate use of premises under direction of Owner.

SUMMARY (ADDENDUM NO. 1) 011000 - 2

D. Contractor shall assume full responsibility for the protection and safekeeping of products under this contract, stored on the site.

E. Contractor shall move any stored products, under Contractor's control, which interfere with operations of the Owner and all facilities adjacent to the work area.

F. Construction Operations: Limited to Areas of Work Required

1. Noisy and Disruptive Operations (such as Use of Jack Hammers and Other Noisy Equipment): Not allowed in close proximity to existing structures outside of regular hours of operation.

G. Time Restrictions for Performing Work: The Contractor will be limited to the following working times:

1. Work Days: Monday to Friday.

2. Work Times: 7 A.M. to 7 P.M.

3. The Owner and Engineer may approve alternate work hours upon request.

a. Contractor shall submit written request to Owner requesting different work hours and stating the reason for the request, including why it would be in the best interest of the Owner to approve the request.

b. Owner gives written approval of the request.

4. No work will be allowed on weekends or holiday or outside the times specified above except in case of emergency, and then only as required to alleviate the immediacy of the emergency.

H. Utility Outages and Shutdown:

1. N/A

I. Construction Plan: Before start of construction, submit three copies of construction plan regarding access to Work, and use of Site for acceptance by Owner. After acceptance of plan, construction operations shall comply with accepted plan unless deviations are accepted by Owner in writing.

1.6 FUTURE WORK

A. N/A

1.7 WORK SEQUENCE

A. Remove existing 18” of anthracite such that approximately 9” of existing silica sand, 3” of existing high density sand, and 2” of existing high density gravel remains. See Appendix A for details.

B. Legally dispose of existing mixed media filter media offsite.

C. Install 24” (minimum depth required upon final backwash) of virgin granular activated carbon.

SUMMARY (ADDENDUM NO. 1) 011000 - 3

D. Assist the City of Calhoun Utilities with the initial backwashing of fines and placing each filter back into service.

E. Measure final GAC level after filter is backwashed and drained to ensure a minimum depth of 24” of virgin granular activated carbon.

F. Construct Work in stages in order to accommodate Owner's occupancy requirements during construction period. Coordinate construction schedule and operations with Engineer, Operator, and Owner as to not limit access to area.

1.8 OWNER OCCUPANCY

A. Owner will occupy the premises during the entire period of construction for the conduct of his normal operations. Cooperate with Owner's Representative in all construction operations to minimize conflict, and to facilitate Owner usage.

1.9 PERMITS

A. Furnish necessary permits for construction of Work including the following:

1. Business License for Prime and Subs

1.10 EMERGENCY RESPONSE PLAN

A. The Contractor shall develop and implement, prior to the start of work, an emergency response plan for handling spills and overflow of materials that will damage the environment. This plan shall include how an immediate response will be achieved. Contractor shall provide the name and telephone number of a local representative that can respond to emergencies on a 24-hour per day basis.

1.11 SPECIFICATION CONVENTIONS

A. These Specifications are written in imperative mood and streamlined form. This imperative language is directed to Contractor unless specifically noted otherwise. The words "shall be" are included by inference where a colon (:) is used within sentences or phrases.

PART 2 - PRODUCTS - Not Used

PART 3 - EXECUTION - Not Used

END OF SECTION 011000

SUMMARY (ADDENDUM NO. 1) 011000 - 4

CITY OF CALHOUN UTILITIES

PROJECT MANUAL FOR

REPLACEMENT OF EXISITNG FILTER MEDIA

WITH GRANULAR ACTIVATED CARBON

AT THE

MAULDIN ROAD WATER TREATMENT PLANT

PROJECT NO. 22056.00

DWSRF PROJECT NO. FS010055.02

CALHOUN, GEORGIA

NOVEMBER 2024

APPENDIX “A”

TYPICAL FILTER PLAN AND SECTIONS

(ADDENDUM NO. 1)

CITY OF CALHOUN UTILITIES

PROJECT MANUAL FOR

REPLACEMENT OF EXISITNG FILTER MEDIA

WITH GRANULAR ACTIVATED CARBON

AT THE

MAULDIN ROAD WATER TREATMENT PLANT

PROJECT NO. 22056.00

DWSRF PROJECT NO. FS010055.02

CALHOUN, GEORGIA

NOVEMBER 2024

APPENDIX “B”

CALGON CARBON CORPORATION

FILTRASORB 820 AND CMR 820

SPECIFICATIONS

(ADDENDUM NO. 1)

Calgon Carbon Corporation Filtrasorb 820

Calgon Carbon Corporation CMR 820

Virgin GAC Product Specification: FILTRASORB

Value Test Method

Iodine Number (mg/g), min. 900 TM-4, ASTM D4607

Moisture, weight %, max. 2 TM-1, ASTM D2867

Effective size, mm 1.0-1.2 TM-47, ASTM D2862

Uniformity Coefficient, max. 1.5 TM-47, ASTM D2862

Abrasion No., min. 75 TM-9, AWWA B604

Trace Capacity Number, (mg/cc), min. 9 TM-79, TM-85 (converted to

TCN)

Screen Size (US Sieve), weight %

* Larger than No. 8, max. 5 TM-8, ASTM D2862

* Smaller than No. 20, max. 4 TM-8, ASTM D2862

Apparent Density, g/cc, min. 0.50 TM-7, ASTM D2854

React Product Specification: CMR 820 Value Test Method

Iodine Number (mg/g), min.1 a) 800 (if spent was >550)

b) +250 (if spent was <550), with a minimum final blended value of at least 500

TM-4, ASTM D4607

Moisture, weight %, max.2 8 TM-1, ASTM D2867

Uniformity Coefficient, max. 2.1 TM-47, ASTM D2862

Abrasion No., min. 70 TM-9, AWWA B604

Screen Size (US Sieve), weight %

* Larger than No. 8, max. 5 TM-8, ASTM D2862

* Smaller than No. 20, max. 4 TM-8, ASTM D2862

Apparent Density, g/cc, min 0.20 TM-7, ASTM D2854

4. No work will be allowed on weekends or holiday or outside the times specified above except in case of emergency, and then only as required to alleviate the immediacy of the emergency.

I. Construction Plan: Before start of construction, submit three copies of construction plan regarding access to Work, and use of Site for acceptance by Owner. After acceptance of plan, construction operations shall comply with accepted plan unless de...