BL071-22 ADD3

FWHWRC and YRWRF

Primary Clarifier Rehabilitation

ADDENDUM NO. 3

Addendum Date July 5, 2022

Bid Number BL071-22

ADDENDUM MUST BE SIGNED AND INCLUDED IN YOUR BID SUBMITTAL

BL071-22 ADDENDUM NO. 3

JULY 5, 2022 PAGE 1

PART 1 – REVISIONS TO THE PROJECT MANUAL

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

1. Notice of Bid, revise as follows:

a. CONSECUTIVE CALENDAR DAYS FOR COMPLETION:

F. Wayne Hill Water Resources Center

420 560 (Milestone 1) / 588 728 (sub) / 616 756 (Final)

Yellow River Water Reclamation Facility

532 672 (Sub) / 560 700 (Final)

2. Instructions to Bidders, revise as follows:

a. 7. CONTRACT TIME: The Work shall be completed within F. Wayne Hill

Water Resources Center 420 560 (Milestone 1) / 588 728 (Sub) / 616 756

(Final) and Yellow River Water Reclamation Center Facility 532 672 (Sub) /

560 700 (Final) consecutive calendar days.

3. Bid Form, revise as follows:

a. The Bidder agrees to complete the Contract awarded within 420 560

(Milestone 1) / 588 728 (Sub) / 616 756 (Final) for FWHWRC and 532 672

(Sub) / 560 700 (Final) for YRWRC YRWRF consecutive calendar days for completion from the date of the “Notice to Proceed” and he further agrees that the owner may retain from the monies which may become due the amount of $2,000.000 (Milestone 1) / $2,000.00 (Sub) / $1,500.00 (Final) for

FWHWRC and $2,000.00 (Sub) / $1,500 (Final) for YRWRC YRWRF per day for each and every day that the completion of the work may be delayed.

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4. Sample Agreement, Part. 4.02-A, revise as follows:

a. Milestone 1 at FWHWRC will be completed within 420 560 consecutive calendar days after the date when the Contract Times commence to run.

The Work will be substantially completed with 588 728 (FWHWRC) and 532

672 (YRWRF) consecutive calendar days after the date when the Contract

Times commence to run as provided in Paragraph 2.03 of the General

Conditions, and completed and ready for final payment in accordance with

Paragraph 14.07 of the General Conditions with 616 756 (FWHWRC) and

560 700 (YRWRF) consecutive calendar days after the date when the

Contract Times commence to run.

5. Supplementary Conditions, Part SC-4.02-D, add the following:

a. 12. Photographs, consisting of 45 pages.

1) a. None of the contents are “technical data” on which Contractor may rely.

6. Supplementary Conditions, add the following:

SC-ARTICLE 16 – DISPUTE RESOLUTION

SC-16.02 Alternate Dispute Resolution

A. Engineer's written decision on a claim, dispute or other matter will be final and binding upon Owner and Contractor unless, within ten days after issuance of the Engineer's written decision, either party appeals the decision by giving the other party and Engineer written notice of request for executive negotiation. Within ten days of the delivery of said notice, senior representatives of at least the Owner and Contractor, having authority to settle the dispute, and the Engineer shall meet at a mutually acceptable time and place, and thereafter as often as they reasonably deem necessary, to exchange relevant information and to attempt to resolve the dispute.

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B. In the event a mutually acceptable decision cannot be reached through executive negotiation within twenty days of the appealing party's notice, or mutually agreeable longer period, or if the party receiving such notice will not meet within ten days, Owner or Contractor may declare, in writing delivered to the other party and the Engineer, the executive negotiation unsuccessful and may initiate further appeal. If further appeal is to be made, such written notice of intent to further appeal shall be delivered by Owner or Contractor to the other and to

Engineer within ten days after the date upon which the executive negotiation has been declared unsuccessful and a formal proceeding may be instituted by the appealing party in a forum of competent jurisdiction to exercise such rights or remedies as the appealing party may have with respect to such claim, dispute or other matter in accordance with applicable Laws and Regulations. Engineer's decision shall be final and binding unless a formal proceeding is instituted within sixty days of the date of such delivery of written notice of intention to further appeal, unless otherwise agreed in writing by Owner and Contractor.

7. Section 01 11 00, Part 1.02-B-4, revise as follows:

a. Installation of Owner pre-selected double disc pumps, Owner pre-selected associated in-line grinders, and SCADA integration (FWH only)

8. Section 01 14 00, Part 1.05-C-5, add the following:

a. d. Owner will drain primary clarifiers as low as possible using the existing drain piping. Contractor shall remove remaining liquids and solids as required to complete the work. Contractor may pump liquids and solids from primary clarifiers into the primary clarifier influent channel (upstream of the primary clarifier influent weirs) or other location at the Site as approved by the Owner. Dewatering shall be included in Contractor’s Lump Sum, Bid Form, Part 1, Bid Item No. 1.1

(FWHWRC) and 1.2 (YRWRF).

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b. e. Contractor will be responsible for cleaning the interior of the clarifiers as required to complete the Work. Contractor may connect to

Owner’s W3 plant water supply for cleaning purposes, but all labor and materials (hoses, fittings, spray nozzles, etc.) required for cleaning shall be provided by the Contractor.

9. Section 06 51 00, Part 2.02-E, revise as follows:

a. Hatches shall be factory assembled to the covers using with recessed

Type 316 stainless steel piano hinges. The new hatches and hinges shall be installed on the existing covers in the field. Locate Type 316 Stainless

Steel twist lock on the other side for quick access and easy closing. Hatches shall be flush mounted with the existing FRP cover top surface and sealed with covers using factory-installed neoprene gasketing. A “P” type gasket shall be bonded to the hatch cover to also hold the cover in place. Locate hinged side of hatch as shown on the Drawings in same orientation as existing hinges.

All other terms and conditions of the PROJECT MANUAL remain unchanged.

PART 2 – REVISIONS TO THE DRAWINGS

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

1. Drawing S201, Note 4, revise as shown below:

a. SILANE-BASED WATER REPELLANT SHALL BE APPLIED TO THE TOP

SURFACE OF THE CONCRETE DECK WHERE INDICATED ON THE

DRAWINGS. THE WATER REPELLENT SHALL BE A SILANE-BASED

100% SOLID, REACTIVE PENETRATING SEALER FOR CONCRETE,

SIKAGARD 705L BY SIKA CORPORATION, BARACADE WB 244 BY

EUCLID CHEMICAL, MASTERPROTECT H 1000 BY BASF

CORPORATION, OR APPROVED EQUAL.

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2. Drawing S201, Note 5, revise as shown below:

a. FOR SILANE-BASED WATER REPELLANT COATING SEE

SPECIFICATION SECTION 09 90 00 – PAINTING. PRIOR TO

APPLICATION OF SILANE-BASED WATER REPELLANT, CONCRETE

SURFACES SHALL BE CLEANED TO REMOVE ALL TRACES OF

MILDEW, DIRT, DUST, EFFLORESCENCE, LAITANCE, AND STAINS BY

METHODS IN ACCORDANCE WITH THE MANUFACTURERS

RECOMMENDATIONS AND SECTION 09 90 00 - PAINTING. ALL WORK

AND MATERIALS ASSOCIATED WITH SILANE-BASED WATER

REPELLANT SHALL BE INCLUDED UNDER PART 1 LUMP SUM ITEMS,

BID ITEM NO. 1.1 1.2.

3. Drawing SD001, Note 4, revise as shown below:

a. SPALLED AND/OR DETERIORATED AREAS WHERE DEPTH “D” TO BE

REPAIRED IS LESS THAN OR EQUAL TO 4” 3” SHALL BE REPAIRED

PER DETAIL 2. AREAS WHERE DEPTH “D” IS GREATER THAN 4” OR

EQUAL TO 3” SHALL BE REPAIRED PER DETAIL 4.

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: The Contract Drawings show photos from around the sites, but they are in black and white and difficult to see. Are color and/or original copies of these photos available for better clarification?

A1: Photographs are now available and referenced in SC-4.02-D.

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Q2: Specification Section 01 14 00, Part 1.05-C-5 states that the Owner will dewater process tanks and basins at beginning of each shutdown. It also states that the Contractor shall remove liquids and solids and dispose of them at appropriate location at the Site. The specifications and Contract drawings do not state the quantity of liquids and solids expected in each tank and they do not state where to dispose of such liquids and solids.

Please confirm the quantity of liquid and solids to be removed and confirm the location of disposal.

A2: Section 01 14 00 is revised in this addendum to provide additional information regarding dewatering of process tanks and basins.

Q3: In the videos that were shared during the Pre-Bid meeting, I noticed white stripes along the interior floor of the primary clarifiers. What are these? Are these joints that are to be replaced in this project?

A3: The primary clarifiers at FWHWRC were constructed in two phases. Primary

Clarifiers 1-4 were constructed first during Phase 1. Then during Phase 2, Primary Clarifiers 5-7 were constructed to the west of the Phase 1 primary clarifiers, and Primary Clarifiers 8-10 were constructed to the east of the Phase 1 primary clarifiers. The white stripes observed in the videos are Sikadur Combiflex joints between Phase 1 and Phase 2 construction. Replacement of these joints is not included in this project.

Q4: Contract Drawing S201 for the Yellow River Site, Note 5, states "...All work and materials associated with silane-based water repellant shall be included under Part 1 Lump Sum Items, Bid Item No. 1.1." Please confirm if this work should be included under Bid Item No. 1.1. We believe it should be included in Bid Item No. 1.2 because it is associated with the Yellow

River Site.

A4: Payment for the silane-based water repellant shall be included under Bid Item

No. 1.2. Drawing S201 Note 5 is revised in this addendum.

Q5: Contract Drawing S201 shows a dashed line with the note, "Limits of silane based water repellant, see Notes 3 and 4." Note 5 on the same drawing states, "For silane-based water repellant coating, see Specification Section

09 90 00 - Painting..." However, Specification Section 09 90 00 does not contain any information on this silane-based water repellent system in the

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body of the spec, Table 1: Painting Schedule, or Table 2: Product Listing.

Please provide the acceptable product to be used for this silane-based water repellant.

A5: Drawing S201 Notes 4 and 5 are revised in this addendum to provide the silane-based water repellant products

Q6: Contract Drawing S201 says to replace 4'X3' hatches (Approx. Qty 264) and

3'X3' hatches (Approx. Qty 16). Photos 5 and 6 on Contract Drawing S202 and Photo 4 on Contract Drawing E201 show these hatches as what looks like being made up of either 3 EA 1'x3' segments or 4 EA 1'x3' segments to make up the 3'x3' and 4'x3' hatches. Please confirm if the new hatches will match this existing style, or do you want a solid 3'x3' and 4'x3' hatches as replacements.

A6: Hatch size shall match existing, but the details of hatch fabrication, including the number of segments per hatch, shall be determined by the manufacturer to meet the requirements specified for this project.

Q7: Specification Section 06 51 00 Part 2.02-E states "hatches shall be flush mounted and sealed with covers using factory-installed neoprene gasketing. A "P" type gasket shall be bonded to the hatch cover to also hold the cover in place." So in order to use a "P" type neoprene gasket to seal the hatches, the current hatch support angles will need to be removed, lowered by 7/16", and then reinstalled to accommodate a 1/2" P-seal.

Please confirm if the neoprene "P" type gasket is needed or not.

A7: Section 06 51 00 is revised in this addendum to remove the “P” type gasket.

Q8: Note 4 on Drawing SD001 states that areas where depth "D" is greater than

4" shall be repaired per Detail 4. Detail 4 states that it is for formed spall repair (3" and greater). Please confirm if Detail 4 is to be used for depths of

3" and greater, or 4" and greater.

A8: Formed spall repair applies to 3 inches and deeper. Drawing SD001 Note 4 is revised in this addendum.

Q9: Specification Section 46 43 11 included proposals from Evoqua for the chain and flight clarifier equipment. The proposals included drawing and shipping information, with estimated durations of submittal drawings, ADDENDUM NO. 3

Addendum Date July 5, 2022

JULY 5, 2022 PAGE 8

reviews and approvals, and delivery. The durations in Evoqua's (the named manufacturer) proposal greatly exceed the schedule constraints outlined in the project milestones provided on page 3 of the Notice of Bid and the

Schedule of Shutdowns at the end of Specification Section 01 14 00. Are you going to issue an addendum to push the milestone dates to allow time for contractors to contract with vendor, obtain approved submittals, and procure named equipment prior to start of shutdown sequence(s)? Please confirm.

A9: The number of days for completion of Milestone 1, Substantial Completion, and

Final Completion are revised in this Addendum.

Q10: Section 1 of the Instructions to Bidders, #14 QUANTITIES OF WORK indicates that the quantities of Work for Unit Price Items are approximate and for comparison of the bids. It goes on to state that any departure from the estimated quantities of Work, "will not be accepted as valid grounds for... extension of time..." Article 5 of the Draft Agreement, 5.01 B indicates that for Unit Price Work, "estimated quantities are not guaranteed, and determinations of actual quantities and classifications are to be made by the Engineer." Since determination of actual quantities of Unit Price Items will be made by the Engineer after bid and during execution of the Work, please confirm that extensions of time will be granted if the quantity of any item of Unit Price Work differs materially from the estimated quantity of such item indicated in the Agreement and delays the critical path

(consistent with the threshold established in GC 11.03 D.1 for adjustments of the Unit Price for quantity variation).

A10: Engineer anticipates that a time extension would be granted if the quantity of any item of Unit Price Work differs materially from the estimated quantity of such item indicated in the Agreement and Contractor demonstrates that this delays the critical path.

Q11: Article 16 - Dispute Resolution, of the General Conditions, is completely redlined and there is no Article 16 in the Supplementary General Conditions.

Please provide a supplemental Article 16 - Dispute Resolution.

A11: This addendum includes revisions to the Supplementary Conditions to include

Dispute Resolution.

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Q12: Instructions to Bidders, Item 21, BUSINESS LICENSE, states in part, "Successful

Bidder's submittals shall include a copy of Bidder's business license." Please confirm business license will only be required from the awarded bidder.

A12: Contractors are encouraged to include the business license in the bid submittal, but it is not required. However, the business license must be submitted when requested by Gwinnett County.

Q13: Specification Section 01 14 00 Part 1.05-B states, "Contractor shall not exceed the structural design loading criteria for existing facilities. In particular, note that any equipment and materials placed on top the primary clarifier deck shall not exceed the structural design loading criteria."

Please provide the structural design loading criteria for the clarifier decks at both F. Wayne Hill and Yellow River.

A13: For structural design loading criteria, see the attached drawings from F. Wayne

Hill Water Resources Center Phase 1 (Primary Clarifiers 1-4) and Phase 2

(Primary Clarifiers 5-10). See also attached drawings from Yellow River Water

Reclamation Facility.

Q14: Reference Instructions to Bidders, 2. Copies of Bid Documents. Item 2.4 states, "where forms are provided, they should be used without substitution". In the events answers are longer than the provided lines, may supplemental attachments be provided?

A14: The County documents that are provided within the bid package should be used, but if more information is necessary, please attach to the completed corresponding document.

Q15: Reference Instructions to Bidders, 15. Submission of Bids. Item 15.2 states, "Bids should be submitted on the bid schedule provided in the bid document on white paper, 8-1/2” x 11”, single sided, and with no holes punched". Is it acceptable to use paper clips/binder clips?

A15: Yes, paper clips or binder clips are acceptable to hold the bid submittal together.

Q16: The non-collusion Affidavit form includes in the Notary Signature area the phrase, "Notary Public in and for". What information should be entered on this line?

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A16: The line stating “Notary Public in and for” is for the signature of the Notary that is signing the affidavit.

Q17: Spec. 01 14 00 outlines the suggested sequence of work, the work stages, and how the scopes tie to the various milestones at each site. If we were to follow the sequence laid-out in this spec, the Primary Clarifiers at F. Wayne

Hill would need to be taken off-line and cleaned a minimum of two times, each. It would be more cost efficient and possibly less intrusive on plant operations to complete the structural repair and coating scopes in each primary clarifier while that clarifier is off-line for the mechanical installations, but Milestone #1 would need to be extended to allow for this additional scope. Please confirm if this would be considered as an alternate approach.

A17: Contractor’s bid shall be based upon the Work described within the Bidding

Documents, including sequencing constraints and milestones described in

Section 01 14 00. Engineer may consider alternate approaches but will only do so after bid and award. Approval of alternate approaches will be at the

Engineer’s sole discretion.

Q18: Reference the Sample Agreement, Article 4.03, Liquidated Damages. Article

4.03 indicates that Liquidated damages for failing to timely attain Milestone

1, Substantial Completion, and Final Completion shall be both additive and cumulative. Based on the allowable shutdown durations provided in Table

01 14 00-B "Schedule of Shutdowns", there is a maximum allowance of

(294) calendar days planned for shutting down the FWH primary clarifiers for the Milestone #1 scope of work. The primary clarifier equipment package notes that Evoqua will need 2-weeks (14 days) to generate submittals, the Engineer has (30) days to approve those submittals to allow for the equipment to be released (with an expected lead time of 17 weeks, or (119) calendar days). So, the expected durations provided by the contract documents total-up to 455 calendar days, but Milestone #1 needs to be complete within 420 calendar days. Please consider extending the

Milestone #1 time to allow for these durations, as well as some schedule contingency based on the current market conditions/continually changing lead times.

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A18: The number of days for completion of Milestone 1, Substantial Completion, and

Final Completion are revised in this Addendum.

Q19: The Piping Schedule table on page 40 06 20-2 calls out the Primary Scum line as not requiring heat trace and Volume 3 Contract Drawing M151 indicates insulation shall be replaced as is existing. During the Site Visit on

6/17/22, the piping is insulated and appears to be heat traced. Please confirm if scum piping should be heat traced and insulated, or only insulated.

A19: Per Note 2 of the Wastewater Treatment Plant Piping Schedule in Section 40 06

20, the Primary Scum (PSC) piping shall be insulated and does not need to be heat traced.

Q20: On Volume 3 Contract Drawing M151, the Plan view shows the pipe running along the south side of the wall, however no pipe support or detail is called out for this section of piping. Please confirm if we are to use the existing supports on that wall?

A20: Contractor can re-use existing pipe supports above the wall in this location.

Q21: Volume 3 Contract Drawing S100 shows expansion joint repair and states to see SD001. Volume 5 Contract Drawing SD001, Detail 5 - Expansion Joint

Repair, shows the Demolition and New details. The Demolition detail shows to "Remove Exp Jt Matl to the Waterstop or 4" Min". The New detail then shows "New Exp Jt Matl (Existing May Remain)". Please confirm if the existing expansion joint material is to be removed or if it can remain.

A21: Detail 5 provides an option to the contractor for the existing expansion joint material to remain. If it is damaged during repair, then it will need to be replaced.

Q22: Where are the areas designated for Engineer’s field office and Contractor laydown and equipment storage?

A22: See Drawings G102 and G202 for these area designations. Contractor’s field office location is not shown on the Drawings and is to be coordinated with Owner during construction.

Q23: Specification Section 01 11 00 1.02.B.4 references the installation of Owner pre-selected double disc pumps, associated in-line grinders, and SCADA

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integration. Specification Section 43 23 69 2.01.A contradicts that spec and lists acceptable manufactures as Penn Valley Pump Company or equal.

Please confirm if Penn Valley Pump Company is the Owner pre-selected manufacturer for the double disc pumps, or if an or equal manufacturer is allowed.

A23: Section 01 11 00, Part 1.02-B-4 is revised in this addendum to clarify this.

Requests for approval of “or equal” products shall comply with Section 01 61 00, Part 1.04-E and will only be considered after Notice to Proceed. Approval of any product submitted for consideration as an “or equal” will be at the Engineer’s sole discretion.

Q24: The contract time for substantial completion is stated as 588 and 532 for

FWH and YR, respectively. Spec 01 14 00 schedule of shutdown for FWH has a duration of 64 weeks which is 448 days for FWH leaving 140 days (20

Weeks / 4.6 Months) to get submittals, engineer review, and fabrication lead times. Have the preselected equipment vendors previously agreed this 20

Week timing or will an NTP be delayed if equipment lead times are past this

20 Week timing which would include getting field dimensions for new clarifier equipment?

A24: The number of days for completion of Milestone 1, Substantial Completion, and

Final Completion are revised in this Addendum.

Q25: For field dimensions of the existing clarifiers, the spec states the owner will dewater the clarifiers. Will the owner dewater the clarifiers twice…once for the field dimensioning and once again when the work is to be performed after clarifier equipment arrives? Should the contractor expect any sludge removal or will the tanks be sufficiently clean to begin demolition and pressure washing activities?

A25: See revisions to Section 01 14 00 in this addendum regarding Owner and

Contractor responsibilities for dewatering and cleaning of clarifiers. The number of times that each clarifier will need to be dewatered varies. Per Sections 01 14

00 and 46 43 11, field verification of existing dimensions only applies to some of the clarifiers: not more than three (3) primary clarifiers at FWHWRC and not more than one (1) primary clarifier at YRWRF. After the field verification of existing dimensions is complete, each primary clarifier at FWHWRC will need to be dewatered and cleaned at least twice (once before and once after Milestone

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1), and each primary clarifier at YRWRF will need to be dewatered and cleaned at least once.

Q26: According to spec 01 14 00 page 6 & 7, the GC is to complete all mechanical work (stages 1-5) and then take the clarifiers down again and perform the structural/coatings work (stages 6-9). Please confirm I am interpreting the suggested sequence of work correctly. It seems the owner will be dewatering the tanks on 3 occasions: 1 for field dimensions, 1 for clarifier work, and 1 for structural/coatings work. Can the structural/coating work be performed after demolishing existing equipment and prior to installing the new equipment? It seems there should be an adequate time for the engineer to do a structural inspection while waiting for process equipment deliveries.

A26: The number of times that each clarifier will need to be dewatered varies; see response to the previous question. Contractor’s bid shall be based upon the

Work described within the Bidding Documents, including sequencing constraints and milestones described in Section 01 14 00. Engineer may consider alternate approaches but will only do so after bid and award. Approval of alternate approaches will be at the Engineer’s sole discretion.

Q27: Is there an operational test required before taking down next set of clarifiers? If so, please provide.

A27: Per Section 01 14 00, Part 3.02-A-3, upon completion of each stage, a minimum

14-day operational period shall be successfully completed before shutdown for the next stage. For additional details regarding start-up certification and 14-day operational period, see Section 01 75 00 Part 1.02-C-2-c.

Q28: Item 15.1 states Bids shall be submitted in duplicate…How many copies of the bid form are required?

A28: Contractors shall submit one (1) original and (1) copy of the bid submittal.

Q29: Reference 26-05-00, 1.01.10.b – Please provide wiring diagram of where existing wiring will terminate on new PLCs that are to be replaced.

A29: Intended spec reference should be SECTION 40 61 13, PART 1.01-D-10-b. The existing field wiring will remain as landed in the existing panel. The new points in

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the new PLC will need to be coordinated with the System Integrator during submittals of the modifications.

Q30: Reference 26-05-00, 1.01.11.a – Please provide picture of existing Flight

Monitoring Control Panels with indications of which isolation amplifiers are to be replaced and where the additional isolation amplifiers will be installed.

A30: Intended spec reference should be SECTION 40 61 13, PART 1.01-D-11-a. All

Turck isolation amplifiers in panel 22:FCP-PS-1/4 should be replaced with two new Phoenix Contact amplifiers each. See attached photograph.

Q31: Reference 26-05-00, 1.01.11.b – Please provide picture of existing Flight

Monitoring Control Panels with indications of which isolation amplifiers are to be replaced and where the additional isolation amplifiers will be installed.

A31: Intended spec reference should be SECTION 40 61 13, PART 1.01-D-11-b. All

Phoenix Contact isolation amplifiers in panel 22:FCP-PS-5/7 should be replaced with one new Phoenix Contact amplifier each. See attached photograph.

Q32: Reference 26-05-73 - Please provide a list of what required electrical test, evaluations, or assessments are required for this project.

A32: Section 26 05 73, Power System Studies provides requirements for Short Circuit and Arc Flash Risk Assessment. Section 26 05 00, Basic Electrical

Requirements provides Testing requirements in Paragraph 1.07 and requirements for Infrared Inspection in Paragraph 1.08.

Q33: Will there be another addendum?

A33: Yes, Engineer acknowledges receipt of additional questions that are not answered in this addendum. Engineer anticipates at least one additional addendum to answer these questions.

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PART 4 – ATTACHMENTS

A. Record Drawings from FWHWRC and YRWRF indicating design loads, three (3) pages:

1. FWHWRC Phase 1: Primary Clarifiers 1-4

North Advanced Water Reclamation Facility, Drawing No. 22 S-002

2. FWHWRC Phase 2: Primary Clarifiers 5-10

F. Wayne Hill Water Resources Center Phase 2, Drawing No. 2-22 S-100

3. YRWRF, Yellow River Water Reclamation Facility Improvements, Sheet GS.03

B. Photographs of existing flight monitoring panels, three (3) pages:

1. 22:FCP-PS-1/4

2. 22:FCP-PS-5/7

3. 22:FCP-PS-8/10

Acknowledgment of receipt of this addendum must be signed and included in your bid submittal.

Company Name

Signature

Date

22:FCP-PS-1/4

These two Phoenix Contact isolation amplifiers will remain.

All Turck isolation amplifiers in this panel to be replaced with two Phoenix

Contact isolation amplifiers.

Existing field wiring will remain landed in existing points. New points for PLC will need to be coordinated with System Integrator.

22:FCP-PS-5/7

All isolation amplifers in this panel to be replaced with one Phoenix Contact isolation amplifier each.

Existing field wiring will remain landed in existing points. New points for PLC will need to be coordinated with System Integrator.

Existing field wiring will remain landed in existing points. New points for PLC will need to be coordinated with System Integrator.

22:FCP-PS-8/10

No isolation amplifier changes in this panel.