ESBD_File_346849_Amendment A002 complete.pdf

AMENDMENT OF SOLICITATION Page 1 of 33 Pages

1. SOLICITATION NO.

696-FD-24-B001-A

2. AMENDMENT NO.

A-002

3. EFFECTIVE DATE

02/05/2024

4. ISSUED BY

Texas Department of Criminal Justice

Contracts and Procurement, Two Financial Plaza, Suite 703

Huntsville, Texas 77340

Bailey Ham, CTCD, CTCM

5. NAME AND ADDRESS OF OFFEROR

6. The above numbered solicitation is amended as set forth in Item 7. The hour and date specified for receipt of Offer is extended x is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing Items 5 and 8 and returning two copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or e-mail which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED

FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by e-mail or letter, provided each e-mail or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

7. DESCRIPTION OF AMENDMENT

The purpose of this amendment is to answer questions and make changes to the plans and project manual.

8a. NAME AND TITLE OF SIGNER (Type or Print)

8b. OFFEROR

(Signature of Person Authorized to Sign) Date Signed

Except as provided herein, all terms and conditions of the solicitation, as heretofore changed, remain unchanged and in full force and effect.

113379

02/05/2024

02/05/2024

TDCJ TERRELL UNIT – REFURBISH WATER TOWER – WATER TREATMENT PLANT

MWR NO.: 02719002

SOLICITATION NO.: 696-FD-24-B001-A

ADDENDUM NO. 2

CHANGES TO THE PLANS

1. Remove and Replace Sheet 1 – Added Sheet 3A

2. Remove and Replace Sheet 3 – Site Plan Revised with additional information and callouts.

3. Added Sheet 3A Overall Layout – Staging Area Revised.

CHANGES TO THE PROJECT MANUAL

(BOLD WITH LINE IN RIGHT MARGIN)

1. Remove and replace the Table of Contents in its entirety. Division 33 was added for Section 33 11 19.01 –

Valves for Buried Potable Water Service.

2. Remove and replace Section 01 00 00 Scope of Work in its entirety. Sections 1.1.B and 1.1.C.2 have been revised.

3. Remove and replace Section 09 97 00 Coatings for Steel Water Storage Tanks in its entirety. Section 1.1.A.2 was revised, and Section 3.2.A was revised.

4. Added Section 33 11 19.01 Valves for Buried Potable Water Service was provided for the installation of the insertion valve.

QUESTIONS AND ANSWERS

Question #1

The contract states: "Up to 30 tank tie rods and associated turnbuckles, clevises and related hardware. Tie rods shall be of like size." Do they need to be replaced or do they just need to be tightened?

Answer #1

Please include the replacement of all 30 tie rods and associated turnbuckles, clevises, and related hardware as part of the base bid.

Question #2

Do you have an inspection report?

Answer #2

There is a Field Inspection Report by Dunham Engineering completed 6/12/2019 located at the end of the specifications. This is the latest information we have on the tank.

Question #3

Can you provide the prevailing wage rates for this project?

Answer #3

The prevailing wage rates can be found in the attachments on the ESBD, attachment 4 and 5. This can be found at the following link: https://www.txsmartbuy.com/esbddetails/view/696-FD-24-B001-A

SOLICITATION NO.: 696-FD-24-B001-A

Question #4

Are all ladders to be removed and replaced on the tank?

Answer #4

Yes, severe localized corroded items found in the 2019 report are expected to be removed and replaced. If it is determined after blasting that a repair can be done in lieu of full replacement, Contractor may submit an RFI requesting repair. Mounting hardware and ladder to be replaced in-kind or better.

Question #5

Can you confirm a temporary chain link fence must be installed around the staging area? It appears the tanks are already within a fenced area.

Answer #5

The staging area has been revised as a part of this addendum. Contractor will need to provide security fence with new staging area. If staging area is within an existing fenced area, no additional secured fence is necessary and is expected to remain secure outside of working hours.

Question #6

Will tool and equipment inventory check be required each day arriving and leaving the site?

Answer #6

Yes.

Question #7

Will Dunham Engineering be the inspector for this project?

Answer #7

Dunham Engineering/HMT Tank will be providing a certified inspector to provide QA inspections and verify proper welding work and coating operations for the rehabilitation in accordance with the Engineer approved submittals and shop drawings. Inspector will not be on site every day and will need to be scheduled accordingly.

Question #8

How big is the tank?

Answer #8

The tank is 400,000 Gallons with a high and low water level of 148’ and 128’ respectively. Additional information can be found in the Field Inspection Report dated 6/12/2019 at the end of the specifications.

SOLICITATION NO.: 696-FD-24-B001-A

Question #9

Will the project require containment?

Answer #9

Yes. Contractor to submit containment plan in accordance with the requirements of SSPC Guide 6 as noted in

Specification 09 97 00 – Coatings for Steel Water Storage Tanks, section 2.5.C.

Question #10

Will dehumidification be required for this project?

Answer #10

Yes. Specification 09 97 00 – Coatings for Steel Water Storage Tanks, section 3.3.D specifies that the contractor shall “provide, install, and operate dehumidification equipment as required to properly cure coating system.”

Question #11

Will Saturday and Sunday work be approved if requested?

Answer #11

Section H, Special Conditions in the Solicitation, part 11 states the standard work week shall be Monday through Friday, 8 hours per day. Actual work hours will need to be established at the pre-construction conference. Contractor may request to work outside of the standard work week, but it will be at the warden’s discretion and officer availability.

Question #12

Does the tank have any antennas? If so, will they be removed by owner prior to the start of work?

Answer #12

There are no antennas on the tank.

Question #13

Will a logo be part of the scope of work for this project?

Answer #13

No, a logo is not part of this project. Tank will be painted to a white similar to what is currently there.

SOLICITATION NO.: 696-FD-24-B001-A

ADDENDUM NO. 2

ADDENDUM NO. 2

Question #14

When does the owner anticipate that this project will be awarded.

Answer #14

Contractor is expected to hold their offer up to 180 days after bid. See Box 13, Item D on the first page of the

Solicitation, Offer and Award.

Question #15

How soon after award will the owner want the contractor on site to begin work?

Answer #15

Work shall commence at the conclusion of the pre-construction meeting.

Question #16

Will the owner pull the water samples and pay for Bac-T?

Answer #16

Contractor will be responsible for disinfection and testing as a part of this scope in accordance with Section 09

97 00 – Coatings for Steel Water Storage Tanks.

Question #17

Will seed and straw of the tank be acceptable for site restoration?

Answer #17

Seed is an accepted form of restoration. Straw is not accepted as a form of restoration. Please refer to specification 32 90 00 – Vegetation Establishment, section 2.2 for acceptable forms of restoration of disturbed areas.

Question #18

Has the interior of the tank ever been brush sandblasted and overcoated? If so, how many coats? Provide as much detail about past project as possible.

Answer #18

The answer to this is unknown. There are no previous records on file regarding any previous rehabilitation or the initial coating of the EST.

Question #19

Has the interior of the tank ever been painted with 100% solids epoxy? If so, what is the film thickness?

Answer #19

The answer to this is unknown. There are no previous records on file regarding any previous rehabilitation or the initial coating of the EST.

SOLICITATION NO.: 696-FD-24-B001-A

ADDENDUM NO. 2

ADDENDUM NO. 2

Question #20

Can the tank be bypassed and drained in the current configuration or will modification be needed to be able to drain the tank?

Answer #20

Yes. See attached Site Plan which has been revised.

Question #21

There appear to be completely rusted areas in the balcony, are replacement of these sections included in the bid?

Answer #21

Due to not knowing the full extent of balcony repairs until blasted, but understanding the condition of the balcony is poor in some areas, please include a single section of 3’x3’ (approximately 1 panel) removal and replacement of balcony in the base bid. Additional sections will be added to the scope as necessary after inspection through change orders. Specification 09 97 00, section 1.1.A.2 revised.

Question #22

Can you verify that the items listed are the entire scope of work for this project:

• Surface prep and paint interior and exterior

• Containment

• Replace up to 30 tie rods and turnbuckles

• Replace manway cover

• Replace access ladder and safety climb

• Repair tank overflow weir box

• Seal CP port

• Replace sample port near tank base

• Remove cable and conduit and replace when complete

• Remove transformer, wiring gutter, rack, housekeeping slab and grout

• Replace pressure gauge

• Replace pressure instruments and install new rack

• New cathodic protection system

SOLICITATION NO.: 696-FD-24-B001-A

ADDENDUM NO. 2

ADDENDUM NO. 2

Answer #22

Yes, include the replacement and installation of the listed items as part of the base bid. Please also include minimum balcony repair/replacement as described in Answer #21. Many of these items were found to be severely corroded in the 2019 TCEQ Inspection and are expected to have deteriorated further.

Regarding the electrical scope, please include the following:

• Add new breaker to existing power distribution panel.

• Replace conduit and cable on tank leg.

• Add new ductbank from pump room the new electrical rack location.

• New rack shall include the following equipment:

o 10kVA transformer/panelboard combination unit o Cathodic protection panel o Heat trace panel o Lighting contactor panel o Pressure transmitter o Rack lighting and receptacle

Question #23

In reference to the following item: If any repairs are need after inspection, will those be treated as change orders? I do see the below information listed in 09 97 00. This specification section makes it sound as if the repairs will be needed to be performed but the section in the Scope of Work implies there will be an inspection to determine if they are needed. Please confirm.

“ Upon completion of surface preparation, the Engineer’s Representative will perform an inspection and determine if any elements of the tank require replacement. Based on the results of the inspection, replacement of several tank elements may be warranted, including but not limited to the following items:

turnbuckles, access ladder and safety climb device, construction manway flange, overflow weir box, sample port, anchor bolts, rods and rod mounting hardware, and the cathodic port. The tank inspection report dated 6/12/2019 prepared by Dunham Engineering, Inc is attached in the appendix for reference.”

Answer #23

In order to cut down on change orders and associated paperwork, these items have been deemed most probable for replacement and should be included in the base bid. If the Engineer’s Representative deems these items can be repaired, the item should be credited back to the owner minus any associated repair costs outside of scope if any. The items listed in Section 09 97 00 and 01 00 00 should be included in the base bid for removal and replacement as they were considered “severely corroded” in 2019. Any other items deemed by the Engineer’s

Representative after blasting for removal and replacement or repair and considered outside the scope will require a change order. Please note the added items bolded in Sections 09 97 00 and 01 00 00.

Question #24

Is the existing distance from the riser pipe to ladder known? Is there enough space to allow for install of the clips for conduit support. If not will ladder need to be cut off & re-installed to accommodate for spacing?

Answer #24

The existing distance is unknown. If conduit cannot fit or be rerouted, Contractor to submit an RFI to determine if the ladder needs to be relocated.

SOLICITATION NO.: 696-FD-24-B001-A

ADDENDUM NO. 2

ADDENDUM NO. 2

Question #25

Is there a date this project is expected to be completed by? Or when this project will be awarded? Is it possible that this project could be completed in the Fall?

Answer #25

The project is expected to be completed in 270 calendar days. The project will be awarded within 180 days of bid closing.

Question #26

Regarding the HUB subcontracting plan, I understand this is a requirement apart of this project, but the this type of work is a unique industry and there is not many contractors the work on elevated storage tanks. Let alone that are certified HUB. We will have to subcontract the electrical and we have contractor that is familiar with this type of work we typically use on these projects. There are some small portions of the project we could potentially use HUB subcontractors on such as site restoration and disposal of abrasive. Just trying to get an understanding of what we need to do to comply with this HUB program.

Answer #26

Please reach out to the TDCJ HUB program.

Question #27

Can you also confirm which manway cover is to be replaced, any is it just the cover or the full manway replacement.

Answer #27

The 24” manway flange on the top of the bowl is what needs to be replaced. Replacement of the 30” manways on the main riser pipe are not part of the current scope and will be evaluated after blasting. Sections 01 00 00 paragraph 1.1B.2 and Section 09 97 00 paragraph 1.1.A.2.b have been revised.

JENNIFER.HALLIER

Snapshot

JENNIFER.HALLIER

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TEXAS DEPARTMENT OF CRIMINAL JUSTICE

TERRELL UNIT

REFURBISH WATER TOWER - WATER TREATMENT PLANT

MWR: 02719002

CONSTRUCTION PLANS FOR

MARCH 2023

ISSUED FOR BID

03/01/2023

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SANDY

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TEXAS DEPARTMENT

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SHEET 1 OF 13

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WORK AREA 1

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%%UVICINITY MAP - BRAZORIA COUNTY

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KEY MAP: N/A

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PROJECT LOCATION

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LOCATION MAP

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TDCJ TERREL UNIT

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TDCJ RAMSEY UNIT

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COVER SHEET

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GENERAL NOTES & LEGEND

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OVERALL LAYOUT

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EXISTING ELECTRICAL ONE-LINE DIAGRAM

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ELECTRICAL DEMOLITION DETAILS

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ELECTRICAL MISC DETAILS I

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ELECTRICAL MISC DETAILS II

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TANK CATHODIC PROTECTION SCHEDULE

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ELEVATED STORAGE TANK TERRELL UNIT

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TANK CATHODIC PROTECTION DETAILS

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ADDENDUM NO. 2

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NMC

113379

WATER WELL NO. 5 TO BE TURNED OFF AT BREAKER

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EX 8" WATER PIPE INLET

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GST NO. 1 200,000 GAL CAPACITY TO BE HYPER CHLORINATED (BY OTHERS)

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EX 8" WATER PIPE FROM GST TO PUMP HOUSE

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PUMPS TO REMAIN OFF DURING REHABILITATION ACTIVITIES

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GENERATOR

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PROP 1-8" INSERTION VALVE SEE NOTE 7

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EX 8" ABOVE GROUND PIPE 3-8" GV 1-PRV (TO REMAIN)

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EX 8" WATER TO DISTRIBUTION LOOP

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EX 3-8" GATE VALVES

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EX 8" WATER LINE FROM PUMP HOUSE TO EST

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APPROX LOCATION OF ABOVE GROUND PIPE

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MARCH 2023

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TEXAS DEPARTMENT OF CRIMINAL JUSTICE

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TERRELL UNIT REFURBISH WATER TOWER - WATER TREATMENT PLANT MWR NO. 02719002

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SJ

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AG

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ISSUED FOR BID

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NOTES

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1. EXISTING GATE SHALL BE USED FOR SITE ACCESS. TDCJ PERSONNEL WILL EXISTING GATE SHALL BE USED FOR SITE ACCESS. TDCJ PERSONNEL WILL UNLOCK GATE EACH MORNING AND LOCK GATE AT THE END OF EACH WORK DAY. 2. STAGING AREA SHALL BE SECURED WITH 6' CHAIN LINK FENCE AND STAGING AREA SHALL BE SECURED WITH 6' CHAIN LINK FENCE AND ACCESS GATE. EXACT LOCATION TO BE COORDINATED WITH OWNER 3. SEE SPECIFICATION 09 97 00 FOR REQUIREMENTS FOR EST REHAB AND SEE SPECIFICATION 09 97 00 FOR REQUIREMENTS FOR EST REHAB AND COATING. 4. CONTRACTOR TO RESTORE SITE TO EXISTING CONDITION UPON COMPLETION CONTRACTOR TO RESTORE SITE TO EXISTING CONDITION UPON COMPLETION OF CONSTRUCTION.

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BASED ON 24 X 36 SHEET SIZE

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5. THE ENGINEER'S REPRESENTATIVE WILL PERFORM AN INSPECTION AFTER THE ENGINEER'S REPRESENTATIVE WILL PERFORM AN INSPECTION AFTER SURFACE PREP IS COMPLETED. THE ENGINEER'S REPRESENTATIVE WILL DETERMINE WHICH ELEMENTS REQUIRE REHABILITATION OR REPLACEMENT BEYOND SURFACE REPAIR. SEE SPECIFICATION 01 00 00 FOR DETAILS AND REQUIREMENTS. 6. ALL WATER LINES AND VALVES ARE APPROXIMATE BASED ON DISCUSSION ALL WATER LINES AND VALVES ARE APPROXIMATE BASED ON DISCUSSION FROM TDCJ MAINTENANCE AND FACILITIES PERSONNEL AS WELL AS OBSERVATIONS IN THE FIELD. 7. CONTRACTOR SHALL INSTALL A NEW 8" INSERTION GATE VALVE. EXACT CONTRACTOR SHALL INSTALL A NEW 8" INSERTION GATE VALVE. EXACT LOCATION TO BE COORDINATED WITH OWNER. PRIOR TO REHABILITATION ACTIVITIES, CONTRACTOR SHALL COORDINATE TESTING ACTIVITIES WITH OWNER. 8. ALL FACILITIES AND UTILITIES ARE TO REMAIN UNLESS OTHERWISE SPECIFIED. ALL FACILITIES AND UTILITIES ARE TO REMAIN UNLESS OTHERWISE SPECIFIED.

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ADDENDUM NO. 2

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NMC

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EST NO. 1 400,000 GAL CAPACITY SEE NOTE 3

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CHAIN LINK FENCE

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GENERATOR

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SEE NOTE 1

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OVER FLOW PIPE & DRAIN

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WATER WELL NO. 5

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EX RECLAIMED WATER LINE

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CONTRACTOR STAGING AREA SEE NOTE 2

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TERRELL UNIT REFURBISH WATER TOWER - WATER TREATMENT PLANT MWR NO. 02719002

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SJ

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AG

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ISSUED FOR BID

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NOTES

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1. EXISTING GATE SHALL BE USED FOR SITE ACCESS. TDCJ PERSONNEL WILL EXISTING GATE SHALL BE USED FOR SITE ACCESS. TDCJ PERSONNEL WILL UNLOCK GATE EACH MORNING AND LOCK GATE AT THE END OF EACH WORK DAY. 2. STAGING AREA SHALL BE SECURED WITH 6' CHAIN LINK FENCE AND STAGING AREA SHALL BE SECURED WITH 6' CHAIN LINK FENCE AND ACCESS GATE. EXACT LOCATION TO BE COORDINATED WITH OWNER 3. SEE SPECIFICATION 09 97 00 FOR REQUIREMENTS FOR EST REHAB AND SEE SPECIFICATION 09 97 00 FOR REQUIREMENTS FOR EST REHAB AND COATING. 4. CONTRACTOR TO RESTORE SITE TO EXISTING CONDITION UPON COMPLETION CONTRACTOR TO RESTORE SITE TO EXISTING CONDITION UPON COMPLETION OF CONSTRUCTION.

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5. THE ENGINEER'S REPRESENTATIVE WILL PERFORM AN INSPECTION AFTER THE ENGINEER'S REPRESENTATIVE WILL PERFORM AN INSPECTION AFTER SURFACE PREP IS COMPLETED. THE ENGINEER'S REPRESENTATIVE WILL DETERMINE WHICH ELEMENTS REQUIRE REHABILITATION OR REPLACEMENT BEYOND SURFACE REPAIR. SEE SPECIFICATION 01 00 00 FOR DETAILS AND REQUIREMENTS. 6. ALL WATER LINES AND VALVES ARE APPROXIMATE BASED ON DISCUSSION ALL WATER LINES AND VALVES ARE APPROXIMATE BASED ON DISCUSSION FROM TDCJ MAINTENANCE AND FACILITIES PERSONNEL AS WELL AS OBSERVATIONS IN THE FIELD.

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ADDENDUM NO. 2

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NMC

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Table of Contents ADDENDUM NO. 2 Page 1 of 2

Texas Department of Criminal Justice

Terrell Unit Refurbish Water Tower - Water Treatment Plant

MWR #02719002

This document is released for Issued for Bid.

TABLE OF CONTENTS

DIVISION 01

01 00 00 Scope of Work v.20160801 01 10 00 Summary v.20220310 01 25 00 Substitution Procedures v.20160201 01 33 00 Submittals v.20160301 01 42 00 References v.20210422 01 45 16.13 Contractor Quality Control v.20210101 01 45 23 Testing and Laboratory Services v.20200701 (Not Used) 01 50 00 Temporary Facilities and Controls v.20190701 01 57 23 Temporary Storm Water Pollution Control v.20200301 01 64 00 Owner Furnished Products v.20170501 (Not Used)

01 70 00 Execution Requirements v.20191001 01 73 29 Cutting and Patching v.20180201 01 73 30 Paving Repair and Resurfacing v.20200701 01 77 00 Closeout Procedures v.20200301 01 78 23 Operation and Maintenance Data v.20160301 01 78 36 Warranties v.20180301 01 78 39 Project Record Documents v.20210113

DIVISION 09

09 91 13 Exterior Painting v.20200701 09 97 00 Coatings for Steel Water Storage Tanks

DIVISION 13

13 47 13 Cathodic Protection System

DIVISION 26

26 00 00 Basic Electrical Methods v.20220107 26 05 19 Low Voltage Electrical Conductors and Cables v.20210727 26 05 26 Grounding and Bonding for Electrical Systems v.20210602 26 05 29 Hangers and Supports for Electrical Systems v.20170601 26 05 33 Raceways and Boxes for Electrical Systems v.20190701 26 05 53 Identification for Electrical Systems v.20210602 26 08 13 Electrical Acceptance Testing v.20210201 26 22 00 Low-Voltage Transformers v.20170601 26 24 16 Panelboards v.20210602

Table of Contents ADDENDUM NO. 2 Page 2 of 2

26 27 26 Wiring Devices v.20200301 26 94 00 Instrumentation Heat Trace System

DIVISION 31

31 22 00 General Earthwork v.20180301 31 23 10 Trenching, Backfilling, and Compacting v.20170601

DIVISION 32

32 90 00 Vegetation Establishment v.20220119

DIVISION 33

33 11 19.01 Valves for Buried Potable Water Service

DIVISION 40

40 70 00 Instrumentation for Process Systems 40 70 10 Field Instrument List

APPENDICIES

Field Inspection Report, Dunham Engineering, Inc. 6/12/2019 jennifer.hallier Line

RPS Scope of Work v.20160801 Terrell Unit ADDENDUM NO. 2 Section 01 00 00 - Page 1 of 2 Refurbish Water Tower - Water Treatment Plant - Issued For Bid MWR #02719002

SECTION 01 00 00 – SCOPE OF WORK v.20160801 [Standard TDCJ Specification]

PART 1 – GENERAL

1.1 PROJECT DESCRIPTION (SCOPE OF WORK)

A. The scope of work to be provided at the Terrell Unit is to renovate the existing elevated water storage tower. Rehabilitation includes surface preparation and recoating of the entire interior and exterior of the existing tank, as well as all repairs, replacements, and electrical improvements as shown on the drawings, as specified in other sections, and/or as determined by the Engineer’s Representative.

B. (SCOPE OF WORK) FOR CONTRACTOR

1. Work to be completed by the Contractor involves the rehabilitation of the existing elevated storage tank at the Terrell Unit. The work includes surface preparation and recoating of the entire interior and exterior of the existing tank, as well as all required tank repairs, replacement of components, and electrical improvements as shown on the drawings and as specified in other sections.

2. Prior to rehabilitation activities, the Contractor shall install an insertion valve on the distribution line from the elevated storage tank. Location of this new valve shall be coordinated with TDCJ.

3. Upon completion of surface preparation, the Engineer’s Representative will perform an inspection and determine if any elements of the tank require replacement. Based on the results of the inspection, replacement of several tank elements may be warranted, including but not limited to the following items: turnbuckles, access ladder and safety climb device, 24” construction manway flange (located at the top of the bowl), overflow weir box, sample port, anchor bolts, rods and rod mounting hardware, 1-3’x3’ balcony panel, and the cathodic port. The tank inspection report dated 6/12/2019 prepared by Dunham Engineering, Inc is attached in the appendix for reference.

4. Contractor shall be responsible for draining the elevated storage tank, turning off Well Pump No. 6 to the existing ground storage tank, and turning off the service pumps to the elevated storage tank.

C. (SCOPE OF WORK) FOR TDCJ

1. Work to be completed by TDCJ includes upgrading each of the three (3) existing 30 kVA transformers to 50 kVA rating.

2. Work to be completed by TDCJ includes hyperchlorination or draining of the ground storage tank on site in preparation of the system remaining offline during rehabilitation.

1.2 PROVISIONS FOR PROJECT SUPPORT

A. Provide and install temporary extensions and connections to utilities as required for construction operations. See Section 01 50 00 for requirements and utilities available from

TDCJ.

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RPS Scope of Work v.20160801 Terrell Unit ADDENDUM NO. 2 Section 01 00 00 - Page 2 of 2 Refurbish Water Tower - Water Treatment Plant - Issued For Bid MWR #02719002

1. For a construction duration greater than 30 days, temporary Sanitation Facilities are required to be provided and installed as part of Project Scope of Work. For a construction duration 30 days or less, use of TDCJ’s Sanitation Facilities will be permitted.

a. Provided Sanitation Facilities shall comply with Section 01 50 00.

B. For a construction duration greater than 120 days, a Field Office is required to be provided as part of Project Scope of Work. For a construction duration of 120 days or less, a Field Office is not required to be provided as part of Project Scope of Work, but may be provided for contractor’s convenience.

1. Provided Field Office shall comply with Section 01 50 00.

2. Provide and install temporary extensions and connections to utilities as required for

Field Office, if applicable.

C. Irrespective of the provision of a Field Office:

1. Provide one (1) cell phone with voicemail and “smart phone” service that includes web-based e-mail application OR one (1) cell phone with voicemail and one (1) desktop computer, laptop computer, electronic notebook, electronic tablet or similar device with web-based e-mail application. See Section 01 50 00 for additional requirements.

2. Provide Other Office Equipment as described in Section 01 50 00, 2.2.A.5.

END OF SECTION 01 00 00

RPS Coatings for Steel Water Storage Tanks Terrell Unit ADDENDUM NO. 2 Section 09 97 00 - Page 1 of 11 Refurbish Water Tower - Water Treatment Plant - Issued For Bid MWR #02719002

SECTION 09 97 00 - COATINGS FOR STEEL WATER STORAGE TANKS

[RPS SPECIFICATION]

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes:

1. Coatings and required surface preparations for all interior and exterior surfaces of existing elevated storage tank rehabilitation.

. 2. Tank repairs prior to coatings, summarized as follows:

a. Up to 30 tank tie rods and associated turnbuckles, clevises and related hardware. Tie rods shall be of like size.

b. Remove and replace existing 24-inch diameter construction manway flange located at the top of the bowl.

c. Remove and replace existing access ladders and approved safety climb device

d. Repair tank overflow weir box by welding unwelded seams

e. Seal existing cathodic port near overflow box by welding a steel plate over port.

f. Remove and replace existing sampling port near tank base

g. Remove and replace 3’x3’ section (approximately 1 panel) of balcony including all weld work and gap sealing as determined by Engineer’s Representative.

h. Install insertion valve on distribution line

PART 2 – PRODUCT, EQUIPMENT, MATERIAL AND/OR FIELD SERVICES

2.1 GENERAL

A. Brand or manufacturer’s references are descriptive only and indicate type and quality to be provided. All references to brand or manufacturer names shall be interpreted to include the language “or A/E approved equal”. Any brand or manufacturer meeting specifications will be considered for approval, irrespective of the language “or A/E approved equal” appearing in conjunction with the brand or manufacturer name.

B. Without limiting the general aspects of other requirements of these specifications, all surface preparation, coating and painting of interior and exterior surfaces and inspection shall conform to the applicable requirements of the Society for Protective Coatings, NACE International, ASTM (American Society for Testing and Materials), AWWA and the manufacturer's printed instructions.

1. ASTM (American Society for Testing and Materials)

a. ASTM D 520 Standard Specification for Zinc Dust Pigment

b. ASTM D 4417 Standard Test Methods for Field Measurement of Surface

Profile of Blast Cleaned Steel

c. ASTM E 337 Standard Practice Test Method for Measuring Humidity with a Psychrometer

d. ASTM D2200 Standard Methods of Evaluating Degree of Rusting on

Painted Surfaces

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2. ANSI (American National Standards Institute)

a. ANSI/ASC 29.4 Exhaust Systems Abrasive Blasting Operations –

Ventilation and Safe Practice

b. ANSI/NSF Standard 61 Drinking Water Components

3. AWWA (American Water Works Association)

a. AWWA D 102 Coating Steel Water Storage Tanks

4. Consumer Product Safety Act, Part 1303

5. NACE International

a. NACE Publication TPC2 Coatings and Linings for Immersion Service:

Chapter 1 Safety, Chapter Surface Preparation, Chapter 3 Curing, and Chapter 4 Inspection

b. NACE Standard SP0178 Standard Recommended Practice – Fabrication Details, Surface Finish Requirements and Proper Design Considerations for Tanks and Vessels to be Lined for Immersion Service

c. NACE Standard SP0188 Standard Recommended Practice – Discontinuity (Holiday) Testing of Protective Coatings

d. NACE Standard RP0287 Field Measurement of Surface Profile of Abrasive Blast-Cleaned Steel Surfaces Using a Replica Tape

e. NACE Standard RP0288 Standard Recommended Practice, Inspection of Linings on Steel and Concrete

6. OSHA (Occupational Safety & Health Administration)

a. 1915.35 Standards – 29 CFR – Painting

7. SSPC (Society for Protective Coatings)

a. SSPC-SP2 Hand Tool Cleaning

b. SSPC-SP3 Power Tool Cleaning

c. SSPC-SP11 Power Tool Cleaning to Bare Metal

d. SSPC-PA-1 Shop, Field and Maintenance Painting

e. SSPC-PA-2 Measurement of Dry Film Thickness with Magnetic Gages

f. SSPC-PA-3 Guide to Safety in Paint Application

g. SSPC-Guide 12 Guide for Illumination of Industrial Painting Project

h. SSPC-VIS 1-89 Pictorial Surface Preparation Standards for Painting Steel

Surfaces

i. SSPC Paint Spec 36 Two Component Weatherable Aliphatic Polyurethane

Topcoat, Performance-Based

8. SSPC/NACE Joint Standards

a. SSPC-SP5/NACE 1 White Metal Blast Cleaning

b. SSPC-SP6/NACE 3 Commercial Blast Cleaning

c. SSPC-SP7/NACE 4 Brush-Off Blast Cleaning

d. SSPC-SP10/NACE 2 Near-White Metal Blast Cleaning

C. Use only products that are lead-free as defined by the Consumer Product Safety Act, Part

1303.

D. For zinc dust pigment contained in any zinc-rich material, use only products that meet the requirements of ASTM D 520 Type II with respect to zinc content and purity.

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E. For wetted areas, use only those products that meet the requirements of ANSI/NSF Standard 61 for potable water service.

2.2 PRODUCT, EQUIPMENT AND/OR MATERIAL REQUIREMENTS

A. Tank Interior Coating Systems – Wet and Dry Surfaces

1. Stripe Coat:

a. Tnemec Epoxoline Series FC22 or

b. Sherwin-Williams SherPlate PW Epoxy or

c. Carboline Phenoline 311

d. Apply by brush and scrubbed into all weld seams. In addition to weld seams, all edges, corners, bolts, rivets, pits shall receive a stripe coat. Thin only with approved thinner.

2. Interior Coating:

a. Tnemec Epoxoline Series FC22 applied at 25 dry mils in a two coat application or

b. Sherwin-Williams SherPlate PW Epoxy applied at 25 dry mils in a two coat application or

c. Carboline Phenoline Tankshield applied at 25 dry mils in a two-coat application.

d. Thin only with approved thinner.

B. Tank Exterior Coating Systems

1. 1st Coat:

a. Tnemec Series 90G-1K97 Tneme-Zinc applied at 2.5 to 3.5 dry mils or

b. Sherwin-Williams Corothane I GalvaPac 2K Zinc Primer applied at 3.0 to

4.0 dry mils or

c. Carboline Carbozinc 859 applied at 3.0 to 5.0 dry mils.

d. Apply by brush or roller – do not spray.

e. Thin only with approved thinner.

2. Stripe Coat (applied after 1st coat):

a. Tnemec Series 66 Hi-Build Epoxoline or

b. Sherwin-Williams Macropoxy 646 or

c. Carboline Carbothane 133HB

d. Apply stripe coat at 3.0 to 5.0 mils dry film thickness. Apply by brush or roller to all weld seams, structural edges and bolted connections.

3. 2nd Coat:

a. Tnemec Series 73 Endura-Shield applied at 3.0 to 5.0 dry mils or

b. Sherwin-Williams Acrolon 218 HS acrylic polyurethane applied at 2.0 to 4.0 dry mils or

c. Carboline Carbothane 133HB applied at 3.0 to 5.0 dry mils.

4. 3rd Coat:

a. Tnemec Series 700 HydroFlon applied at 2.0 to 3.0 dry mils or

b. Sherwin-Williams FluoroKem HS at a dry film thickness of 2.0 to 3.0 mils or

c. Carboline Carboxane 950 applied at 2.0 to 3.0 dry mils.

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2.3 FIELD SERVICES REQUIREMENTS

A. No additional requirements.

2.4 PRODUCT, EQUIPMENT, MATERIAL AND/OR FIELD SERVICES WARRANTY

REQUIREMENTS

2.5 PRODUCT, EQUIPMENT, MATERIAL AND/OR FIELD SERVICES SUBMITTAL

A. Product Information

1. If a specified brand of coating is to be used, submit a certificate to that effect and confirm that there will be no deviations from the specifications. If there are to be any changes, explain those.

2. Submit manufacturer’s complete installation procedures.

3. Submit color charts at least thirty (30) days prior to application of final coats.

B. Submit design and details of support system for tank shrouding system to be used, designed, signed and sealed by a professional engineer registered in the State of Texas.

1. Shroud system must meet all TCEQ requirements.

2. Shroud tanks completely, including cap.

C. Submit details of a containment plan in accordance with the requirements of SSPC Guide

6.

PART 3 - EXECUTION

3.1 INSTALLER QUALIFICATIONS

3.2 PREPARATION

A. Contractor shall remove all water from the elevated tank which will drain by gravity through the drain line or through the existing system. Contractor shall remove all standing water, mud, and debris from the tank prior to starting work.

B. Remove dust, dirt, oil, grease or any foreign matter that will affect the adhesion or durability of the coating or paint in accordance with SSPC-SP 1 Solvent Cleaning.

C. Perform prime coating in the field unless otherwise approved in writing by the Engineer.

D. Use equipment designed for application of the specified coatings.

E. For tank interiors, application of the first coat shall follow immediately after surface preparation and cleaning and stripe coat, if applicable, before rust bloom occurs or the same day, whichever is less. Any cleaned areas not receiving first coat within this period shall be recleaned prior to application of first coat. Use of dehumidification equipment

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F. Complete coating of surfaces that will be inaccessible after assembly, before the associated components are installed.

G. Comply with the surface preparation requirements of SSPC the Society of Protective

Coatings. Summaries of those specifications are listed below for information. Consult the SSPC specifications for detail.

1. Solvent Cleaning (SSPC-SP1): Removal of oil, grease, soil and other contaminants by use of solvents, emulsions, cleaning compounds, steam cleaning or similar materials and methods which involve a solvent or cleaning action.

2. Hand Tool Cleaning (SSPC-SP2): Removal of loose rust, loose mil scale and other detrimental foreign matter to a degree specified by hand chipping, scraping, sanding and wire brushing.

3. Power Tool Cleaning (SSPC-SP3): Removal of loose rust, loose mil scale and other detrimental foreign matter by power wirebrushing, power impact tools or power sanders.

4. White Metal Blast Cleaning (SSPC-SP5/NACE No. 1): Air blast cleaning to a gray-white uniform metallic color until each element of surface area is free of all visible residues.

5. Commercial Blast Cleaning (SSPC-SP6 NACE No. 3): Air blast cleaning until at least two-thirds of each element of surface area is free of all visible residues.

6. Brush-Off Blast Cleaning (SSPC-SP7 NACE No. 4): Air blast cleaning to remove loose rust, loose mil scale and other detrimental foreign matter to a degree specified.

7. Near-White Metal Blast Cleaning (SSPC-SP10 NACE No. 2): Air blast cleaning until at least 95% of each element of surface area is free of all visible residues.

8. Power Tool Cleaning to Bare Metal (SSPC-SP11): Differs from SSPC-SP3 in that it requires more thorough cleaning and a surface profile not less than 1 mil.

H. Remove slag, weld metal accumulation and spatters not removed by the fabricator, erector or installer by chipping and/or grinding. Peen, grind or otherwise blunt all sharp edges.

I. Perform all grinding and finishing of welds, edges, etc. prior to solvent cleaning and abrasive blasting. Prepare welds per NACE Standard SP0178 for all interior and exterior surfaces:

1. Butt Welds: Shall be ground smooth and free of all defects, designation “D”.

2. Lap Welds: Shall be ground smooth and blended, designation “D”.

3. Fillet Welded Tee Joint: Shall be ground smooth and blended, designation “D”

J. Use dry method for blast cleaning all surfaces unless otherwise authorized. Use venturi-type blast nozzle with a minimum pressure at the nozzle of 90 psi.

K. Particle size of abrasives used in blast cleaning shall be that which will produce a 1.5 - 2.5 mil (37.5 microns - 65.0 microns) surface profile or in accordance with recommendations of the manufacturer of the specified coating or paint system to be applied.

L. If the profile of the blasted steel exceeds the profile specified above, the Contractor may do one or both of the following:

1. Reblast the surface using a finer aggregate in order to produce the required profile.

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2. Apply a thicker prime coat, if possible, given the limitations of the products being applied, in order to adequately cover the blast profile.

M. Abrasive used in blast cleaning operations shall be new, washed, graded and free of contaminants that would interfere with adhesion of coating or paint and shall not be reused unless specifically approved in writing by the Engineer.

N. Use caution during blast cleaning operations to insure that existing coatings are not exposed to abrasion from blast cleaning.

O. Take all necessary precautions during blast cleaning operations to prevent blasting material from falling on adjacent property.

P. Keep the work area and the surrounding environment in a clean condition. Do not allow blasting materials to accumulate as to constitute a nuisance or hazard to the accomplishment of the work, the operation of the existing facilities or to the surrounding environment.

Q. Remove all dust, dirt, and other residue after completing blasting operations.

R. Neutralize all welds with a suitable chemical compatible with the specified coating.

S. Repair pitted areas on the tank interior by filling with Tnemec Series 215 Surfacing Epoxy and Surfacer or Sherwin-Williams Steel Seam VSE Epoxy Fairing Compound or by welding. Fill pits deeper than 1/8” by welding. Epoxy filler shall be feathered smooth. No protrusions or spatter will be allowed.

T. Special Surface Preparation

1. Tank Interior Coating Systems

a. Surface Preparation: SSPC-SP10/NACE Near-White Metal Blast Cleaning.

An angular profile shall be 2 to 3 mils as per ASTM D 4417, Method C or NACE Standard RP0287.

2. Tank Exterior Coating Systems

a. Surface Preparation: SSPC-SP6/NACE 3 Commercial Blast Cleaning. An angular profile shall be 1.5 to 2.5 mils as per ASTM D 4417, Method C or NACE Standard RP0287.

U. Surface shall be checked in three locations for the presence of chlorides, free iron and sulfates. New tanks shall be tested prior to abrasive blasting, tanks being rehabilitated shall be tested prior to blasting. If blisters are present in existing tank, testing shall also be performed after abrasive blasting. These tests are an Iron Test (Fe2+), Chloride Test and Sulfate Test. Testing shall be carried out as per SSPC Technology Guide 15 “Field Methods for Retrieval and Analysis of Soluble Salts on Steel and Other Nonporous Substrates”. The maximum limits for these contaminants shall be:

1. The maximum level of chlorides is 30 milligrams per square meter or 3 micrograms per square centimeter.

2. The maximum level of sulfates is 100 milligrams per square meter or 10 micrograms per square centimeter.

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3. The maximum level of ferrous ions (Fe2+) is 50 milligrams per square meter or 5 micrograms per square centimeter.

4. Contamination levels above these limits will require washing and retesting in accordance with this specification until the surface is under the allowable limits.

V. If testing shows amounts of chlorides, free iron and sulfates present in the test solution to be greater than the limits listed herein, the Contractor shall clean the surface of the entire tank interior with a 5,000 psi water blast with fine entrained abrasive until the levels in the test solutions are below the maximum acceptable level. Alternate cleaning methods may be allowed with prior approval of the Engineer. Surface shall be reblasted at no additional cost to the Owner.

W. Contractor shall provide a written statement from paint manufacturer stating that the maximum acceptable levels are not less than those listed herein. Results of the testing shall be provided to the Owner before any coatings are applied.

X. The following test kits are approved for use on this project:

1. Chlor*Rid Chlor*Test Kit

2. KTA SCAT Test Kit

3. Test kits from other vendors shall be submitted to the Engineer for prior approval before use.

3.3 EXECUTION REQUIREMENTS

A. After completion of surface preparation as specified for the specific system, apply coatings.

B. Mix and thin materials according to manufacturer's latest printed instructions. Use thinners only as recommended by the manufacturer.

C. Apply prime coat immediately after surface preparation and cleaning and stripe coat, if applicable, before rust bloom occurs or the same day, whichever is less. Any cleaned areas not receiving first coat within this period shall be recleaned prior to application of first coat.

D. Apply and cure coatings in accordance with manufacturer’s recommendations and in accordance with SSPC guidelines. Provide, install and operate dehumidification equipment as required to properly cure coating system.

E. Apply stripe coat by brush and scrubbed into all weld seams. In addition to weld seams, all edges, corners, bolts, rivets, pits shall receive a stripe coat.

F. Apply each coating evenly and leave free of brush marks, sags, runs. Avoid lapping on glass or hardware.

G. When two or more coats of coating or paint are specified, use different tints or colors in each coat so as to provide an indicator of coverage.

H. Film thicknesses per coat as specified are the minimum required. If roller application is deemed necessary, apply additional coats as to achieve the specified thickness.

I. Do not apply coatings under the following conditions exist or are forecasted:

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1. The surrounding air temperature or the temperature of the surface to be coated is below the minimum surface temperature for the products specified herein.

2. Rain, snow, fog or mist is present.

3. The surface temperature is less than 5F above the dew point.

J. Capture and Store new abrasive blast media per TCEQ 2010 Best Available Control

Technology guidelines.

K. Use protective coverings or drop cloths to protect floors, fixtures and equipment. Exercise care to prevent coatings or paints from being spattered onto surfaces which are not to be coated or painted.

L. Use shrouds and avoid application of coatings on windy days so as to avoid getting paint spray on nearby buildings, vehicles and other property.

1. Shroud shall be designed by an engineer registered in the State of Texas.

2. Shroud shall meet TCEQ 2010 Best Available Control Technology guidelines.

M. Repairs

1. After the interior coating system has been installed and holiday tested, repair pinholes and voids as follows:

a. Abrasive blasting shall be in accordance with SSPC-SP10/NACE No.2 Near

White Blast Cleaning obtaining a minimal surface profile as specified herein.

b. Power tool cleaning shall be in accordance with SSPC-SP11 Power Tool Cleaning to Bare Metal. Surface profile shall be angular and not less than the surface profile as specified herein.

c. All edges of remaining sound, tightly adhering coating shall be feathered back (beveled) to create a smooth transition from the substrate to the coatings surface. The coating may be considered tightly adhering if an edge cannot be lifted with a dull putty knife.

d. Install the coating system as specified herein to provide a complete and monolithic system, free of voids and pinholes.

2. For exterior surfaces, repair as follows:

a. Hand or Power Tool Sand as per SSPC-SP2 or SP3 to remove the defect.

In cases where the defect extends to the substrate, prepare the surface as per SSPC-SP11 Power Tool Cleaning to Bare Metal, obtaining a minimum anchor profile as specified herein.

b. All edges of remaining sound, tightly adhering coating shall be feathered back (beveled) to create a smooth transition from the substrate to the coatings surface. The coating may be considered tightly adhering if an edge cannot be lifted with a dull putty knife.

c. Install the coating system as specified herein to provide a complete and monolithic system, free of voids and pinholes.

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N. Disinfection

1. Disinfect interior surfaces of tank in accordance with all the requirements of AWWA C652, Method 3.

2. Prior to disinfecting, wash down the complete interior with clean water and thoroughly flush.

3. Perform disinfection after protective coatings have been applied to the interior surfaces and allowed to thoroughly cure.

4. Drain chlorine solution accumulated on the bottom of the tank.

O. Solvent Vapor Removal

1. Completely remove all solvent vapors by suction-type exhaust fans and blowers before placing tank in operating service.

2. Exhaust solvent vapors both during and after coating application at a minimum rate of one air change every four hours to allow the proper curing of the coating material. High rates of production may require increased ventilation.

3. Continue ventilation until such time as the coating has reached “full cure” as specified by the coating manufacturer.

P. Safety and Health Requirements

1. Ventilation: Where ventilation is used to control hazardous…